Class / Patent application number | Description | Number of patent applications / Date published |
242374000 | With auxiliary force rewinding | 81 |
20080290203 | ELECTROMECHANICAL SEAT BELT RETRACTOR - An electromechanical seat belt retractor has a seat belt retractor assembly having a spool rotationally moveable about an axis of rotation for winding and unwinding a seat belt; a motor for selectively rotating the spool; a clutch including an over-clutch driven by the motor through one or more gears; the clutch being coaxially aligned with the axis of rotation of the spool and linearly spaced from the spool; and wherein upon a forward actuation of the motor a clutch plate of the clutch linearly moves to engage the spool coupling to the spool and thereafter rotating the spool about the axis to initiate a winding of the seat belt. After the clutch plate engages the spool a reversal of the motor linearly moves the clutch plate away from the spool disengaging the spool. Preferably the clutch means is a Bendix type clutch assembly. In a preferred embodiment, the clutch plate first engages an over-clutch is fixed in a locking engagement to the spool. | 11-27-2008 |
20080290204 | SEAT BELT RETRACTOR WITH A PRETENSIONER DEVICE - A seat belt retractor device has a gas generator for generating a high pressure gas when a vehicle is in emergency; a chamber cylinder for conducting the high pressure gas from the gas generator; a piston received movably within the chamber cylinder and pressed and moved by the high pressure gas, the piston having an O ring sealed end portion engaging walls of the chamber cylinder and a rack portion extending into the chamber cylinder; and a drive unit for rotating a winding shaft or spool of a seat belt retractor in a direction of removing a slack of a belt, using the movement of the piston and driven by said rack teeth portions; a pretensioner employed with an energy absorbing mechanism, for reversely rotating the winding spool when a tension acting on the belt exceeds a predetermined value after removing the slack of the belt; and a venting mechanism having a gas passageway for exhausting the high pressure gas from a space filled with the high pressure gas to the outside of the space, the gas passageway extending through the sealed end portion into said rack, characterized by the gas passageway having a first longitudinal extending passageway portion extending for a length in the direction of the rack portion to a closed end and a second transverse passageway portion intersecting the first portion at a distance of at least 10 mm from the end, and being open to the outside space. | 11-27-2008 |
20090173816 | VEHICLE SEATBELT APPARATUS, VEHICLE HAVING THE VEHICLE SEATBELT APPARATUS AND METHOD FOR CONTROLLING VEHICLE SEATBELT - A vehicle seatbelt apparatus includes a belt, a belt reel, a position detector, a motor, a clutch, and a control device. The belt is wound around the belt reel. The position detector is configured to detect a rotational position of the belt reel. The motor is configured to rotate the belt reel. The clutch is configured to connect or disconnect the motor and the belt reel. The control device is configured to control the clutch and a current supplied to the motor. The control device includes a return amount detector which is configured to detect a return amount of the belt reel in a drawing direction of the belt based on the rotational position of the belt reel detected by the position detector after the belt is wound around the belt reel and then the clutch disconnects the motor and the belt reel. | 07-09-2009 |
20090236458 | Apparatus for winding an elongate strap onto a winch - The present invention relates to an apparatus for winding an elongate strap onto a winch. The winch has a hub member to which may be coupled the strap winding apparatus and a reel element fixed to the hub member about which may be wound the elongate strap. The strap winding apparatus has a protective housing and a winding assembly at least partially retained within the housing. The winding assembly includes a coupling ring sized to fit over the hub member for selective mating therewith and a spool assembly. The spool assembly has a spool member mounted in surrounding relation with the coupling ring, a cord which may be wound about the spool member and which may be pulled to urge rotation of the spool member in a first direction, and a torsion spring member connected to both the housing and the spool member. The spring member is configured to store spring energy when the cord is pulled and the spool member rotates in the first direction, and to release spring energy to the spool member when the cord is released thereby urging the spool member to rotate in a second direction opposite to the first direction and causing the cord to be wound about the spool member. The coupling ring has an engagement member pivotally mounted thereto. The engagement member is engageable with both the hub member and the spool member so as to allow torque from the spool member to be transmitted to the hub member via the coupling ring such that when the cord is pulled and the spool member rotates in the first direction the hub member will also rotate thereby causing the elongate strap to be wound about the reel member. The apparatus may be also be used to wind other elongate flexible elements such as webbing, a rope, a cable or a cord. | 09-24-2009 |
20100051733 | PRETENSIONER AND PRETENSIONER MANUFACTURING METHOD - A pretensioner is provided, of which the cylinder, including a restriction portion, can be inexpensively formed, the cylinder having the restriction portion for positioning a gas generation unit to be mounted to a cylinder, and a pretensioner manufacturing method for manufacturing such a pretensioner is provided. In the pretensioner, since the cylinder is molded by forging, an inexpensive material compared with a stainless pipe member can be used for the molding. In addition, since the positioning portion can be molded during forging-molding for molding the entire cylinder, cost can be reduced even in this regard. | 03-04-2010 |
20100051734 | PRETENSIONER - A pretensioner is provided, which can be partially changed in mechanical strength of in a cylinder, in addition, can be widely used. In the pretensioner, the cylinder is molded by forging, and a positioning portion as a high-strength portion is formed from a partition formed using a excess portion produced during the forging-molding. Therefore, while an outer circumferential shape of the cylinder is not changed, a specification of the positioning portion can be varied, the specification including a formation position of the positioning portion, an extension dimension of the positioning portion from the cylinder, and thickness of the positioning portion along a through direction of the cylinder. | 03-04-2010 |
20100116921 | Pretensioned retractor - Seat belt retractors for spooling seat belts (webbings) include multiple independent torque transmission or absorbing systems. The seatbelt retractor comprises a webbing, a spool, a pinion, a pretensioner, at least one coupler pawl, and a locking mechanism including a lock base and a lock pawl. The at least one coupler pawl is positioned in a cavity in the spool. During a predetermined low acceleration event, the at least one coupler pawl pivots so that a portion of the at least one coupler pawl leaves the cavity and engages the lock base to load the lock base which is then prevented from rotating in a spool extracting direction by the locking pawl. When the pretensioner activates during a predetermined higher acceleration event, the pretensioner rotates the pinion in the webbing retraction direction to rotate the spool in the webbing retraction direction. | 05-13-2010 |
20100181407 | Seat belt retractor - A seat belt retractor for a safety belt including a seat belt spindle for winding up and unwinding the safety belt and a tensioning drive. The seat belt spindle includes a gas generator, a drive wheel and a supply pipe which connects the gas generator and the drive wheel. A plurality of thrust members are present in the supply pipe which, after triggering the gas generator, are accelerated and indirectly or directly drive the drive wheel for winding up the safety belt. An inertia coupling is arranged between the drive wheel and the seat belt spindle. The inertia coupling comprises coupling elements which, during an acceleration of the drive wheel, pivot outward and are directly or indirectly coupled to the seat belt spindle. | 07-22-2010 |
20100181408 | Belt Tensioner With a Cup-Shaped Drive Piston - A belt pretensioner for safety belts, in particular in motor vehicles, with a pretensioner drive which, in the event it is triggered, can be coupled to the belt shaft, and includes a drive wheel which is enclosed over at least part of its volume by a tubular housing which forms a channel in its interior, whereby, in order to drive the drive wheel, a plurality of solid balls, which are accelerated by means of a pyrotechnic drive, can be guided through the channel, and a drive piston for the solid balls is arranged at that end of the channel which is to be acted upon by the gas introduced, characterized in that the drive piston ( | 07-22-2010 |
20100200687 | Seat belt retractor - A seat belt retractor includes a spool, a pinion connected to the spool, and a rack. The rack includes a first portion having a first set of teeth and a second portion having a second set of teeth of a smaller width than the teeth of the first portion. The first set of teeth and the second set of teeth are configured to engage with the pinion of the seat belt retractor. | 08-12-2010 |
20100213302 | Retractor assembly - A retractor for a vehicle seat belt includes a spool configured to rotate so that the seat belt may be wound and unwound from around the spool. The retractor also includes a torsion bar located within the spool. The retractor is configured so that the inner or outer members are selectively connected to a lock mechanism and so that during a first loading condition either the first end of the inner member or the first end of the outer member is fixed to the lock mechanism and during a second loading condition both of the first ends of the inner and outer members are connected to the lock mechanism. | 08-26-2010 |
20100243782 | BELT RETRACTOR - A belt retractor ( | 09-30-2010 |
20100258668 | BELT RETRACTOR WITH TIGHTENER DRIVER - The invention relates to a belt retractor ( | 10-14-2010 |
20100276531 | Pretensioner, seat belt retractor having the same, and seat belt apparatus provided therewith - A seat belt pretension with improved piston sealing performance. A piston has an expanding section formed at one end thereof contacting a force transmission component. When gas pressure resulting from reactive gas generated by a gas generator causes the piston to exert a pressing force on the force transmission component in the event of an emergency, the expanding section expands toward the inner circumferential surface of a pipe due to the gas pressure. As a result, the outer circumferential surface of the expanding section in the piston comes into contact with the inner circumferential surface of the pipe in a more efficient manner, resulting in enhanced sealing between the piston and the inner circumferential surface of the pipe. This prevents reactive gas from losing gas pressure, thereby allowing the gas pressure to more efficiently act on the piston. | 11-04-2010 |
20100282889 | SEAT BELT PRETENSIONER FOR A MOTOR VEHICLE - A pretensioner arrangement for a vehicle safety belt includes a safety belt retractor ( | 11-11-2010 |
20100314478 | WEBBING TAKE-UP DEVICE - To obtain a webbing take-up device that can not only transmit to a take-up shaft only rotation from a motor by a clutch but is also simple and compact. | 12-16-2010 |
20110006147 | WEBBING WINDING DEVICE - A webbing winding device includes a clutch mechanism interposed between a spool and an output shaft of a motor and has a simple structure and high operability. In an interference piece that has an interference portion interfering with a connection pawl when an input gear of a clutch is rotated in the winding direction, a base portion is disposed between an outer retaining ring and an inner retaining ring formed at a gear box, and the base portion comes into press contact with an inner peripheral portion of the outer retaining ring and an outer peripheral portion of the inner retaining ring. The interference portion keeps interfering with the connection pawl until a pressing force more than a maximum static frictional force generated between the inner peripheral portion of the outer retaining ring and the outer peripheral portion of the inner retaining ring, and the base portion is applied to the interference portion, thereby rotating the connection pawl. | 01-13-2011 |
20110011969 | SEAT BELT RETRACTOR - A seat belt retractor ( | 01-20-2011 |
20110011970 | Seat Belt Pretensioner - The invention relates to a belt tensioner with a belt shaft ( | 01-20-2011 |
20110017857 | SEATBELT DEVICE OF VEHICLE - A seatbelt device of a vehicle includes: a webbing reel around which a webbing is rolled up; a motor; an acceleration detection unit detecting an acceleration applying to the vehicle; an electric current control unit controlling a driving current of the motor; and an acceleration condition determination unit determining whether or not an acceleration greater than or equal to a set value has been applied to the vehicle within a predetermined amount of time after an acceleration greater than or equal to a first threshold acceleration value has been applied to the vehicle. When the acceleration condition determination unit determines that an acceleration greater than or equal to the set value has been applied to the vehicle within the predetermined amount of time, the electric current control unit controls the driving current of the motor so that a set amount of the webbing is wrapped up. | 01-27-2011 |
20110049283 | SEATBELT RETRACTOR - When a gas generating member of a pretensioner mechanism is activated in case of vehicle collision, a piston inside a pipe cylinder is moved from normal state and a pinion gear body is rotated. Thus, the teeth of the pinion gear portion come in contact with a push block and pushes it in outward direction in conjunction with a force of a block urging spring, whereby a rotating lever is rotated by the push block and the lower end portion of the rotating lever gets disengaged from the tip end portion of a gear-side arm. As a result, the gear-side arm is rotated by an urging spring in outer direction and rotates a mechanical arm through a coupling shaft to make the pawl engage a ratchet gear of a take-up drum unit. | 03-03-2011 |
20110049284 | SEATBELT RETRACTOR - In case a gas generating member of a pretensioner mechanism activates due to vehicle collision, a piston in a piston housing portion moves upwards from its normal position within a pipe cylinder. As a result, the piston comes in contact with a pinion gear portion and causes the pinion gear body to rotate abruptly. Further, a bottom end of a boss portion constituting one end portion of the pinion gear body is rotatably supported at a through hole of a base plate. Further, a support portion constituting the other end portion of the pinion gear body is rotatably supported at a support hole of a cover plate. | 03-03-2011 |
20110062267 | SEATBELT RETRACTOR - When a pinion gear body ( | 03-17-2011 |
20110079673 | WEBBING WINDING DEVICE - Provided is a webbing winding device capable of mounting a holding member for holding a pretensioner on a frame easily. The webbing winding device has a holder which is mounted on a leg plate only by applying loads to tip ends (upper ends) of load receiving pieces and pushing the tip end (bent portion) sides of engagement claws into hole portions. With this structure, the operation of mounting the holder on the leg plate is easy and does not need any component such as screw. As no fastening component such as screw for mounting the holder on the leg plate is required, the cost for components is reduced and as no fastening step of screw is required, such cost is also reduced. | 04-07-2011 |
20110089280 | WEBBING TAKE-UP DEVICE - A webbing take-up device enabling a reduction in size of an overload release mechanism and easy adjustment of an operation torque of the overload release mechanism is provided. In the overload release mechanism of this webbing take-up device, rotary force of a large diameter gear is transmitted to a small diameter gear via plural annular friction springs. The friction springs are disposed between an inner periphery face of a main body portion of the large diameter gear and a tubular portion of the small diameter gear, side by side along an axial direction of the two gears. Consequently, a radial direction enlargement of the large diameter gear and small diameter gear due to space for disposing the friction springs may be restrained. Moreover, the operation torque of the overload release mechanism may be adjusted stepwise by changing the number of the friction springs to be used, in accordance with requirements. | 04-21-2011 |
20110101143 | WEBBING TAKE-UP DEVICE - A webbing take-up device that can regulate displacement of a held part such as clutch while suppressing or preventing a drop in the assembility of the held part such as clutch. A projection is formed on a bridge portion in a wall portion on the opposite side of a holding portion side. When a cover plate is attached to a frame, a base portion of the cover plate contacts a distal end of the wall portion, but at the portion where the rojection is formed, the based portion presses the projection and bends the bridge portion. By the bridge portion bending, a touching surface of the holding portion contacts a base portion of a clutch plate and regulates displacement of the clutch plate. Moreover, in a state where the bridge portion is not bending, a clearance is formed between the touching surface and the base portion when the clutch plate is disposed, so the clutch plate can be also be easily attached. | 05-05-2011 |
20110147509 | Adaptive Load Limiting Retractor - An adaptive load limiting seat belt retractor particularly adapted for motor vehicle applications. The retractor provides multiple levels of load limiting through the use of a pair of internal torsion bar elements. The torsion bar elements control the tension force on the seat belt webbing during an impact in a manner which provides desirable crash management characteristics. The retractor can be switched between high and low load limiting modes through activation of a pyrotechnic pretensioner. When the pyrotechnic pretensioner is not activated, the retractor provides a low load level characteristic. Pretensioner activation switches the retractor into a high load level operating condition. A high load limiting level is provided when the pretensioner is not activated if the spindle rotation exceeds a limited level in the low load limiting condition. A degressive load limiting feature may be provided to cause load limiting to begin at a higher level than the high load limiting level, and then step down the high load limiting level. | 06-23-2011 |
20110204173 | WEBBING RETRACTOR - An operating load of an overload releasing mechanism is made to be high by a simple method. In a webbing retractor, spring claws engage with recesses of a rotor, and a gear wheel and the rotor are connected. When relative rotational force is applied between the rotor and the gear wheel, the spring claws elastically deform and engagement thereof with the recesses is released. Due thereto, connection of the rotor and the gear wheel is released, and the overload releasing mechanism is operated. Here, urging members urge the spring claws toward a side of engaging with the recesses. Due thereto, the operating load of the overload releasing mechanism can be made to be high by a simple method of merely adding the urging members. | 08-25-2011 |
20110215184 | BELT RETRACTOR HAVING A FORCE LIMITATION DEVICE AND A TIGHTENING DEVICE - A seat belt retractor with a load limiting device and a tensioning device includes a two-part belt shaft with a first part ( | 09-08-2011 |
20110215185 | BELT RETRACTOR HAVING A FORCE LIMITATION DEVICE - Disclosed is a seat belt retractor with a two-part belt shaft including a first part ( | 09-08-2011 |
20110297776 | SEATBELT RETRACTOR - A pretensioner includes a gas generator, a pinion, a tube pipe, a piston ball, a plurality of balls, and a tube cover. The tube pipe includes a tubular part that is formed continuously from one end portion to the other end in order to receive the piston ball and the plurality of balls. A hook portion formed at the other end portion is angled toward the pinion. A tip end part of the hook portion is attached to at least one of a refractor frame and the tube cover. With this construction, a reduction in an engagement amount between the pinion and the balls during operation of the pretensioner can be prevented, and as a result, the pinion can be rotated efficiently. | 12-08-2011 |
20110297777 | REVERSIBLE BELT TENSIONER - A reversible belt tensioner ( | 12-08-2011 |
20110309178 | WEBBING RETRACTOR - A webbing retractor has a clutch mechanism. The clutch mechanism includes a lock member; a clutch cover; a clutch guide that is positioned between the clutch cover and a spool, the clutch guide being supported in a relatively rotatable manner with respect to the lock member, the clutch guide being capable of relatively rotating between an unactuated position and an actuated position with respect to the clutch cover, the clutch guide being engaged with a trigger member positioned on a side of the spool and being held in the unactuated position; a spring provided in a compressed state between the clutch cover and the clutch guide; a pawl positioned between the clutch cover and the clutch guide, and being engaged with the ring unit; and an axial-direction separation restricting mechanism that restricts axial-direction separation between the clutch cover and the clutch guide while allowing the relative rotation of the clutch cover and the clutch guide with respect to each other. | 12-22-2011 |
20110309179 | WEBBING TAKE-UP DEVICE - The present invention is to suppress a generation of a noise due to repeatedly hitting a clutch plate against a clutch cover and a clutch guide. A webbing take-up device is provided with a clutch cover fixed to a sub-torsion shaft so as to be rotatable integrally therewith; a clutch guide arranged so as to face the clutch cover, and supported capable of relatively rotating to the sub-torsion shaft; a lock ring formed around the clutch cover and the clutch guide; and a clutch plates turned to a lock ring side while being guided by the clutch guide in accordance with relative rotation of the clutch guide to the clutch cover into one rotational direction, and engaged with the lock ring. L-shaped springs which urge the clutch plates to a clutch cover side are formed integrally with the clutch guide. | 12-22-2011 |
20120006925 | High Seal Retractor Pretensioner Piston - A pretensioner assembly for motor vehicle belt restraint systems is provided. The pretensioner assembly includes a tube in fluid communication with a gas generator. An elastic piston disposed within the tube is operable to drive a plurality of balls upon receiving pressurized gas discharged from the gas generator. The piston includes a proximate end and a distal end. The proximate end includes a flexible rim that expands upon receiving pressurized gas from the gas generator, and the distal end includes a flexible rim that expands in response to backpressure from the plurality of balls. The expansion of the flexible rims at the proximate and distal ends of the piston provides a tight seal between the piston and the inner peripheral wall of the tube. | 01-12-2012 |
20120006926 | HIGH SEAL RETRACTOR PRETENSIONER PISTON - A pretensioner assembly for motor vehicle belt restraint systems is provided. The pretensioner assembly includes a tube in fluid communication with a gas generator. An elastic piston disposed within the tube is operable to drive a plurality of balls upon receiving pressurized gas discharged from the gas generator. The piston includes a proximal end and a distal end. The proximal end includes a flexible rim that expands upon receiving pressurized gas from the gas generator, and the distal end includes a flexible rim that expands in response to backpressure from the plurality of balls. The expansion of the flexible rims at the proximal and distal ends of the piston provides a tight seal between the piston and the inner peripheral wall of the tube. | 01-12-2012 |
20120006927 | WEBBING TAKE-UP DEVICE - When disassembling after a gas being supplied into a tube member, the gas in the tube member is discharged before the tube member and a moving member become separable. In a webbing take-up device, a cover plate cannot be removed from a frame and thereafter a cylinder and a piston inside the cylinder cannot be separated before covering of a fixing screw with a covering section of a plate being released by removing a screw from an exhaust port of the cylinder and by removing the plate from the cylinder. Thus, after a high-pressure gas being supplied into the cylinder, the high-pressure gas inside the cylinder can surely be discharged by removing the plate from the cylinder and the exhaust port is opened by the screw before the cylinder and the piston being separated. | 01-12-2012 |
20120006928 | SEATBELT DEVICE - A seat belt device is provided with a pin for connecting a spindle and a tread head in an initial state. The breaking load of the pin is varied depending on the direction of relative rotation between the tread head and the spindle, such that the pin breaks at a smaller load during operation of a pretensioner. As a result, this allows firmly fixing together the spindle and the lock member during ordinary use without adversely affecting usability, and, upon vehicle collision or the like, the EA load is not affected through breaking of the pin at the smaller load. | 01-12-2012 |
20120032016 | Pretensioner, seat belt retractor, seat belt device and method for assembling pretensioner - A plurality of driving force transmitting members, a piston, a spring and a gas generator are inserted into the pipe from the end of the pipe where the gas generator is mounted. The gas generator is press-fitted in the pipe while the flat faces thereof are deformed by a pair of protrusions of the pipe. Accordingly, the gas generator is temporarily held by the protrusions of the pipe. Then, one end of the pipe is firmly pressed and the gas generator is mounted in the pipe. | 02-09-2012 |
20120032017 | WEBBING TAKE-UP DEVICE - A webbing take-up device comprising a take-up shaft on which webbing is taken up; a movement member that is moved at a specific occasion; a rotation member comprising a coaxially provided rotation shaft support portion and an accommodation portion formed at the periphery of the rotation shaft support portion, the take-up shaft being rotated in the take-up direction by the rotation member meshing with the movement member and being rotated during movement of the movement member; and a shaft bearing member disposed on a rotation shaft support portion side of the rotation member, the shaft bearing member comprising a main body portion, a shaft bearing wall that projects out from the main body portion towards a rotation member side and is accommodated in the accommodation portion, and a shaft bearing hole formed in the main body portion and the shaft bearing wall for supporting the rotation shaft support portion. | 02-09-2012 |
20120032018 | WEBBING TAKE-UP DEVICE - A webbing take-up device capable of smoothly releasing rotation locking while also stabilizing a load support direction during rotation locking. A pawl is equipped with a flat plane shaped load receiving face. The pawl is normally retained in a load receiving position but is rotationally moved when imparted with drive force of a drive mechanism section. The lock ring is equipped with a protrusion portion set with a lower rigidity than the rigidity of the pawl. The lock ring is not capable of rotating by the protrusion portion being supported by the load receiving face of the pawl, and rotation is permitted by moving the load receiving face away from the protrusion portion with rotational movement of the pawl. | 02-09-2012 |
20120037744 | BELT TENSIONER FOR A BELT RETRACTOR - Described is a belt tensioner for a seat belt having a belt retractor, a tensioner pinion ( | 02-16-2012 |
20120067994 | WEBBING RETRACTOR - In a webbing retractor, the center of a rack and rack-teeth in an axial direction of a pinion is placed on the opposite side of a leg plate side with respect to the central axis of a cylinder. The piston is acted upon by a tilting-force toward the leg plate side from the pinion. A stop portion of an upper stay is placed on another leg plate side of the leg plate. Even when the piston is acted upon by the tilting force toward the leg plate side from the pinion, the stop portion can stop the movement of the leg plate toward the other leg plate side, and tilting of the piston and the cylinder toward the leg plate side can be suppressed. Moreover, the need to increase the strength of a frame and so forth can be eliminated, so the webbing retractor can be made compact and lightweight. | 03-22-2012 |
20120119009 | WEBBING TAKE-UP DEVICE - There is provided a webbing take-up device including: a spool to which an end of webbing is anchored and that takes up the webbing by rotating in a take-up direction; a lock portion that restricts rotation of the spool in a pullout direction, in a coupled state capable of transmitting rotation force to the spool; a sensor portion that actuates in a rapid vehicle deceleration state in which a vehicle is being decelerated with a deceleration of a specific value or greater, a state in which the spool is rapidly rotated with an acceleration of a specific value or greater in the pullout direction, or a combination thereof; a drive portion that rotates the spool in the take-up direction by forward driving force output and that actuates the sensor portion; and a clutch portion that couples the spool and the lock portion by actuation of the sensor portion. | 05-17-2012 |
20120160947 | PRETENSIONER - A pretensioner comprising a gas generating unit; a pretensioner body to whose inside the gas is supplied; a spool driving member disposed inside the pretensioner body and causing a spool to rotate to retract webbing onto the spool; a gas flow rate adjusting portion disposed in the spool driving member and whose inner peripheral shape is set in accordance with a flow rate of the gas to be passed through the gas flow rate adjusting portion; and a filter unit having a vent portion that is communicated with a space between the gas generating unit and the spool driving member and is also communicated with the gas flow rate adjusting portion. The open shape of the gas flow rate adjusting portion has a portion that does not coincide in a plan view with the open shape of the vent portion, and the overall open area of the vent portion is set larger than the open area of the gas flow rate adjusting portion. | 06-28-2012 |
20120168548 | SEATBELT DEVICE - A seatbelt device for preventing a torque limiter mechanism from operating due to inertia force when a gear rotates quickly due to a winding force of an electric actuator, while maintaining satisfactory operating characteristics of the torque limiter mechanism. In the torque limiter mechanism, when a motor is driven to perform a wind-up operation, a prescribed operational torque that is set as a torque at which a limit spring moves from an engaging surface where the limit spring is positioned when a large-diameter side gear and a small-diameter side gear are in an assembled state, to an adjacent engaging surface, is greater than an operational torque at which the limit spring moves from the adjacent engaging surface to a next adjacent engaging surface by means of a shear pin. | 07-05-2012 |
20120193462 | METHOD OF LIMITING A LOAD APPLIED ON A SEAT BELT IN AN EMERGENCY - A method of limiting a load applied on a seat belt in an emergency, includes obtaining information, judging if the emergency situation is in a first situation wherein a predetermined condition for controlling one seat belt load limiting mechanism is not satisfied based on the information, or in a second situation wherein the predetermined condition is satisfied; and in the first situation, the method further performs actuating a driving member not to operate the one seat belt load limiting mechanism, winding the seat belt to remove a slack of the seat belt with actuating the driving member, and operating another seat belt load limiting mechanism to prevent withdrawing the seat belt; and in the second situation, the method further performs winding the seat belt without actuating the driving member, and operating the one and another seat belt load limiting mechanisms to prevent withdrawing the seat belt. | 08-02-2012 |
20120211578 | Tensioning Device for a Safety Belt - A tensioning device ( | 08-23-2012 |
20120305694 | Restraint Pretensioner with Deacceleration Mechanism - Disclosed is a pretensioner for an occupant restraint. The pretensioner is designed to be used in conjunction with an inertial reel that locks the occupant restraint when detecting an adverse event. The pretensioner acts to remove slack in the webbing of the restraint and thereby safely secure the occupant once the reel is locked. The pretensioner described herein includes a rack that is initially held in place by a shear pin. Upon being activated, the rack is forced to a fully extended orientation, whereby the shear pin is severed. A deceleration ramp in included beneath the rack to slowly bring the rack to a stop at the end of the stroke. | 12-06-2012 |
20130056571 | SEAT BELT PRETENSIONER FOR VEHICLE AND METHOD FOR PROTECTING PASSENGER USING THE SAME - A seat belt pretensioner apparatus for a vehicle may include a motor operated in response to a control signal of a seat-belt controller, a reduction gear transmitting a rotating force of the motor, and a rotary roll rotated by a rotating force transmitted from the reduction gear, an end of a seat belt being coupled to the rotary roll. | 03-07-2013 |
20130056572 | SEAT-BELT PRETENSIONER - A seat belt pretensioner having a housing, a belt shaft ( | 03-07-2013 |
20130062450 | Pretensioner Device for a Seat Belt - A piston for a pretensioner device ( | 03-14-2013 |
20130126654 | RETRACTOR/PRETENSIONER APPARATUS OF SEATBELT FOR VEHICLE - A retractor/pretensioner apparatus of a seatbelt for a vehicle may include a housing, a spool to which ends of a shoulder webbing and a wrap webbing may be simultaneously connected and which may be rotatably installed in the housing via a rotary shaft, a pinion coupled to one end of the rotary shaft, a first rack and a second rack slidably installed to the housing and engaged with the pinion respectively, a first gas generator fluid-connected to the first rack to provide gas to the first rack, and a second gas generator fluid-connected to the second rack to provide gas to the second rack. | 05-23-2013 |
20130126655 | PRETENSIONER FOR SEAT BELT - A pretensioner for a seat belt is configured to reduce injury by preventing load applied to the passenger's chest from increasing, by allowing a compressed gas generated in a cylinder when a rack used for the pretensioner moves down to be discharged while rotating along a spiral guide blade formed in a micro gas generator. The pretensioner may include a pinion connected to a cylindrical spool wound with a webbing, a cylinder receiving a rack engaged with the pinion, a micro gas generator disposed in the cylinder and rotating the pinion by moving the rack with an explosion due to an external shock, and a generator cap covering the outer circumferential edge of the cylinder and preventing the micro gas generator from separating outside, in which a guide blade that guides gas discharged is formed on the outer circumferential edge of the micro gas generator. | 05-23-2013 |
20130140389 | SEAT BELT RETRACTOR COMPRISING A TENSIONING DRIVE - A seat belt retractor for a safety belt is provided. The retractor includes a seat belt spindle for winding up and unwinding the safety belt and a tensioning drive, which comprises a gas generator, a drive wheel and a supply pipe which connects the gas generator and the drive wheel, a plurality of thrust elements being present in the supply pipe which, after triggering the gas generator, are accelerated and indirectly or directly drive the drive wheel for winding up the safety belt. At least one of the thrust elements is a fiber-reinforced thrust element. | 06-06-2013 |
20130214080 | RETRACTOR FOR A SEAT BELT, AND CLUTCH USED IN SAME - A retractor for a seat belt is disclosed, including a frame, a spool that is mounted rotatably to the inside of the frame, a webbing that is wound on the spool to be pulled-in constantly to the inside of the frame and pulled-out freely from the inside of the frame to the outside thereof, a controller for recognizing vehicle information and controlling the pulling-in of the webbing, a motor for generating a driving force to rotate the spool in accordance with the control of the controller and a clutch for receiving the driving force from the motor and transmitting the driving force to the spool wherein the clutch includes; a driven gear that receives the driving force from a driving gear provided on a rotation shaft of the motor; a plate that is provided facing to one end of the driven gear and inter-connected with the driven gear; a braking disk that is provided to be engaged with the other face opposing one face of the plate, facing to one end of the driven gear, and is in friction with the plate to stay temporally the plate when the plate is inter-connected with the driven gear; and a locking pole that is mounted pivotably to the plate and pivoted by a rotation of the driven gear when the plate is stayed temporally by the braking disk to be meshed with a pinion gear provided on a rotation shaft of the spool thereby transmitting the driving force transmitted from the driven gear to the spool. | 08-22-2013 |
20130256440 | WEBBING TAKE-UP DEVICE - A webbing take-up device is obtained capable of securing sealing properties to gas generated by actuation of a gas generator. A switching mechanism of a webbing take-up device is equipped with a body, a gas generator, a piston that is actuated on receipt of pressure of gas generated by the gas generator, and a cylinder that internally houses the piston. A sheet and a support plate are attached to the body. Crushable ribs are provided to the sheet. The crushable ribs press the cylinder through a general portion of the sheet by attaching the sheet and the support plate to the body. | 10-03-2013 |
20130299620 | PRETENSIONER DEVICE AND SEAT BELT DEVICE - In a pretensioner main body, a cylindrical space and a gas introducing space are formed, and a blocking end portion including a first through hole portion is provided to block the gas introducing space. A piston is movable within the cylindrical space, and a coupling member coupled to the piston is guided to the outside from the gas introducing space through the first through hole portion. An elastic seal member is provided on the inner surface side of the blocking end portion and includes a second through hole portion allowing the coupling member to pass therethrough. A gas buffer member is provided at such a position as to sandwich the elastic seal member between the blocking end portion and itself, where a third through hole portion having a shape and a size corresponding to the shape and size of the cross-section of the coupling member is formed. | 11-14-2013 |
20130327872 | SEATBELT RETRACTOR FOR A SEATBELT SYSTEM AND METHOD FOR INSTALLING A SEATBELT RETRACTOR - A belt retractor includes a retractor frame ( | 12-12-2013 |
20130327873 | SEATBELT TENSIONER WITH A FORCE-LIMITING DEVICE, AND METHOD THEREOF - A belt tensioner for a belt retractor having a load limiter includes a pivoted pinion ( | 12-12-2013 |
20140061352 | ANCHOR PRE-TENSIONER FOR SAFETY SEAT BELT - An anchor pre-tensioner for seat belt of vehicle improves phenomenon in which a webbing of seat belt is caught in belly of passengers during collision by the vehicle. The anchor pre-tensioner may include: first second wires connected to a lower end of the webbing respectively; a driving cylinder having a piston coupled to ends of the first and second wires; a gas generator supplying a gas pressure for the forward movement of the piston; a first roller supporting the first wire to move in the direction oblique against the bottom of the vehicle during the forward movement of the piston; and a second roller supporting the second wire to move downward when the piston moves forward; wherein the forward movement of the piston pulls the webbing of the seat belt in the direction where the first wire moves and at the same time in the direction perpendicular thereto | 03-06-2014 |
20140077018 | PRETENSIONER OF SEAT BELT FOR VEHICLE - A pretensioner apparatus of a seat belt may include a movement tube, a piston movably disposed inside the movement tube, a gas generator fluid-connected to the movement tube and generating a gas upon crash of the vehicle so as to inject the gas into the movement tube to move the piston in a predetermined direction, a linkage unit, a worm connected to the piston through the linkage unit, and a worm wheel engaged with the worm, wherein the worm rotates according to movement of the piston via the linkage unit when the piston moves in the predetermined direction by the gas generated by the gas generator, and wherein the worm wheel fixed to a spool rotates together with the worm to rotate the spool and a seat belt webbing connected to the spool is wound around the spool while the worm rotates according to the movement of the piston. | 03-20-2014 |
20140084099 | SEATBELT RETRACTOR - A retractor includes a windup drum that winds webbing and a pretensioner unit that causes the windup drum to rotate in a windup direction of the webbing. The pretensioner unit includes a pinion gear configured to rotate in association with the windup drum, a piston that includes a rack for meshing with the pinion gear and causes the windup drum to rotate in the windup direction through the pinion gear, a tubular cylinder that has a circular cross-section and movably holds the piston, and a drive mechanism that drives the piston. The piston further includes, on a rear surface side of the rack, a contact surface configured to come into contact with an inner wall of the cylinder, and the cylinder has such a tube length as not to expose the contact portion in a movable range of the piston. | 03-27-2014 |
20140110518 | SEATBELT RETRACTOR - A retractor includes a pretensioner unit including a pinion gear configured to rotate in association with a windup drum, a piston that causes the windup drum to rotate in a direction of winding webbing through the pinion gear, a cylinder that holds the piston, and a gas generating member that fills an interior space of the cylinder with a gas to drive the piston. The cylinder includes a gas release hole on a side surface thereof, the gas release hole provided to be located: in an initial position of the piston before gas generation, at a position at which the interior space and an outside thereof are not continuous with each other through the gas release hole; and after gas generation, at a position at which the interior space that has changed upon moving of the piston and the outside are continuous with each other through the gas release hole. | 04-24-2014 |
20140145020 | DRIVING WHEEL FOR SEATBELT TENSIONERS AND SEATBELT TENSIONERS FOR A SEATBELT SYSTEM - A drive wheel ( | 05-29-2014 |
20140145021 | PRETENSIONER MECHANISM - In a pretensioner mechanism, movement of a piston is anchored by an anchoring pin. The anchoring pin is crushed and the piston is allowed to move. Hence, a pinion is turned by a rack of the piston. A facilitating cavity is formed in the anchoring pin. Crushing and deformation of the anchoring pin in a diametric direction thereof due to a movement of the rack is facilitated by the facilitating cavity. Therefore, the anchoring pin may be easily crushed and deformed in the diametric direction by the movement of the rack, and the action of the anchoring pin caused by the movement of the rack may be effectively made consistent. | 05-29-2014 |
20140158804 | PRETENSIONER OF SEAT BELT FOR VEHICLE - Disclosed herein is a pretensioner of a vehicle seat belt. The elements of the pretensioner required to rotate a spool are disposed within the spool. Furthermore, the pretensioner includes a spool around which the seat belt is wound, wherein the spool includes an internal space open on an end of the spool. A cylinder is installed in the internal space and is extractable from the internal space. Additionally, the pretensioner includes a gas generator that is installed in a first end of the cylinder to connect the gas generator to the cylinder and a spool actuating module that is configured to connect the spool to the cylinder, and rotate the spool using gas pressure generated from the gas generator. | 06-12-2014 |
20140158805 | RETRACTOR PRETENSIONER OF SEAT BELT FOR VEHICLE - Disclosed herein is a retractor pretensioner of a vehicle seat belt. The retractor pretensioner of the present invention may prevent an overshoot phenomenon in which residual pressure of gas impedes reverse rotation of a spool when the pretensioner operates as a load limiter. The pretensioner includes a spool around which the seat belt is wound and wherein the spool is rotatably installed in a frame to rotate the spool relative to the frame by gas pressure transmitted from a gas generator to the spool. In addition, the pretensioner includes a valve shaft that is installed in the spool, wherein the valve shaft operates as a rotating shaft of the gas generator with respect to the frame when the gas generator is not operated and as a valve, through which the gas is discharged out of the spool, when the gas generator is operated. | 06-12-2014 |
20140312155 | Belt tightening drive - The invention is a belt tightening drive for tightening a seat belt that can be wound about a winding shaft, comprising a spindle shaft driven by a drive unit and a worm drive with a worm supported in a torque-proof fashion on the spindle shaft and a driven wheel, engaged therewith and supported in a torque-proof fashion on the winding shaft. According to the invention it is provided that the worm comprises a first toothed section with a first toothed geometry, wherein the first position of the worm the first toothed section engages the driven wheel, the worm comprises at least a first toothed section and following a second toothed section with a second toothed geometry, with the first and second toothed geometries being embodied differently. | 10-23-2014 |
20140319262 | Seat Belt Device - A seat belt device includes a spindle ( | 10-30-2014 |
20140361113 | TENSIONING DRIVE FOR A SAFETY BELT DEVICE - The invention relates to a tensioning drive ( | 12-11-2014 |
20140374527 | END-FITTING TENSIONER FOR A SAFETY BELT SYSTEM - An end fitting tensioner ( | 12-25-2014 |
20150144727 | SEATBELT RETRACTOR - A seatbelt retractor has: a holding plate arranged at a housing outer side and including a shaft receiving hole which rotatably supports a cylindrical shaped boss portion formed at a take-up drum side end of the driven body; and a restricting member arranged at take-up drum side of the holding plate to restrict movement of the boss portion in radial direction so that the boss portion projecting from the hole is positioned co-axial with the take-up drum. The boss portion which faces an inner peripheral surface of the hole includes a pair of radially projecting portions provided on both sides with reference to rotation axis direction projecting radially outward at full periphery of the boss portion. The pair of radially projecting portions project radially outward over the hole so at least a peripheral edge portion of the hole is inserted in clearance defined by the pair of radially projecting portions. | 05-28-2015 |
20150298650 | BELT RETRACTOR - The invention relates to a belt retractor ( | 10-22-2015 |
20160059824 | SEATBELT RETRACTOR - A locking mechanism comprising a coupling member comprising an arm portion which is rotatably supported by a housing and adapted to rotate in a predetermined direction in response to the actuation of the pretensioner mechanism, a pressing portion adapted to press the pawl towards an engagement direction with the ratchet gear, and a coupling portion adapted to couple the arm portion and the pressing portion; and a rotating device adapted to hold the arm portion restrict a reverse rotation thereof; in the actuation of the pretensioner mechanism, when the pawl, pressed by the pressing portion and in contact with the ratchet gear rotating in the take-up direction, passes over each of teeth of the ratchet gear, the coupling member is elastically twisted and deformed between the arm portion and the pressing portion to hold the pawl in a state of being urged toward the engagement direction with the ratchet gear. | 03-03-2016 |
20160082922 | ADVANCED SEATBELT APPARATUS - A vehicle seatbelt apparatus includes a seatbelt web wrapped in a reel around a motor-rotated shaft. A latch is selectively engageable with the reel to lock a seatbelt retractor from movement in one direction while allowing movement of the retractor under motor rotation of the shaft in response to pre-crash vehicle braking deceleration, a vehicle downhill angle or a vehicle lateral āgā force exceeding a threshold. When a retractor locked position is detected, the motor is activated to retract the seatbelt web for a predetermined time period to urge the passenger toward a center upright position in a vehicle seat. | 03-24-2016 |
20160114762 | BELT TENSIONER - The invention provides in a best tensioner ( | 04-28-2016 |
20160159319 | SEAT BELT RETRACTOR INCLUDING PRETENSIONER AND SLACK REMOVER - A seat belt retractor includes a housing and a spool supported by the housing. Webbing is wound around the spool. A webbing engagement member is supported by the housing and is movable to a locked position engaged with the webbing for preventing movement of the webbing relative to webbing engagement member. An activating device is slideably supported by the housing and is slideably engageable with the webbing engagement member for moving the webbing locking device to the locked position. In the locked position, the webbing locking device prevents the webbing from being fed from the spool, thus preventing any slack in the webbing on the spool from being fed out when the webbing locking device is in the locked position. | 06-09-2016 |
20160375857 | LOAD LIMITING RETRACTOR WITH HALL EFFECT SWITCH - A seatbelt retractor assembly includes a disk having a cam surface and a cam follower surface. A lever that engages the cam surface when the lever is in a disengaged position and engages the cam follower surface when the lever is in an engaged position. The lever moves from the disengaged position to the engaged position in accordance with rotation of the disc. A Hall effect switch detects whether the lever is in the disengaged position or the engaged position. | 12-29-2016 |
20160375858 | PASSENGER RESTRAINT HOUSING FOR VEHICLE - A passenger restraint housing for a vehicle including a frame having a top surface and a bottom surface, a retractor secured to the bottom surface of the frame and operatively arranged to hold a seat belt, and at least one mounting bracket, where the mounting bracket is arranged to be secured to the body of the vehicle. The frame further includes a first portion, a first transition, a second portion, a second transition, and a third portion. The first and second portions are secured to one another via the first transition and the second and third portions are secured to one another via the second transition. The first and second portions are disposed at opposite ends of and integral with the first transition and the second and third portions are disposed at opposite ends of and integral with the second transition. | 12-29-2016 |
20160375859 | BELT PRETENSIONER - A belt pretensioner has a base member. The base member has an axial cavity within. An actuating member is hollow and fits within the axial cavity of the base member. The hollow actuating member telescopically slides within the axial cavity and an initiator fits within the hollow portion of the actuating member. In a critical situation such as a crash, the initiator is triggered and the expanding gasses move the actuating member. The actuating member is connected to seat belt webbing and this movement provides the necessary pretensioning of the seatbelt. In some embodiments, a locking means is used to prevent the belt pretensioner from loosening once triggered. One embodiment is provided for use with a child seat. A transversely mounted belt pretensioner embedment is also disclosed. | 12-29-2016 |