| AISIN AI CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120096968 | TRANSMISSION - In a transmission, a large-diameter gear included in a plurality of gears on rotatable shaft members is soaked at its lower part in lubrication oil contained in a lubrication oil storage region formed at a lower portion of a case and scoops up the lubrication oil when rotated. A receiver extending in the axial direction of the large-diameter gear collects the scooped-up lubrication oil and flows the collected lubrication oil toward lubrication portions. The receiver has a vertical wall which enables the lubrication oil scooped up and splashing above the receiver to collide therewith, to flow down on a surface thereof and to be introduced to a collecting portion of the receiver, and an introducing portion which enables the lubrication oil splashing toward between the receiver and the large-diameter gear to flow on a surface thereof and to be introduced to the collecting portion by the inertia force thereof. | 04-26-2012 |
| 20120090417 | POWER TRANSMISSION CONTROL APPARATUS FOR VEHICLE - A sleeve stroke SSt of a specific sleeve is gradually increased from “0” (after t | 04-19-2012 |
| 20120028759 | VEHICULAR POWER TRANSMISSION CONTROL APPARATUS - When a gear position at a higher speed range than a “specific gear position at a lower speed range” (e.g., first speed) is determined (when the torsional vibration is difficult to occur), a clutch torque is controlled such that a clutch is in a totally engagement state (a revolution speed Ne of an output shaft of an engine=revolution speed Ni of an input shaft of a transmission). On the other hand, when the “specific gear position at the lower speed range” (e.g., first speed) is determined (when the torsional vibration is easy to occur), the clutch torque is controlled such that the clutch is in the semi-engagement state (Ne−Ni=predetermined positive value A). In the semi-engagement state, a “damping action by a slip on the clutch” is acted on the torsional vibration, whereby the amplitude of the torsional vibration can be reduced. | 02-02-2012 |
| 20110296948 | AUTOMATIC DUAL-CLUTCH TRANSMISSION - In an automatic dual-clutch transmission, a lowest speed driven gear, other driven gears and a reverse gear are provided on a first output shaft to be freely rotatable. A 2nd speed driven gear and a highest speed driven gear are provided on a second output shaft to be freely rotatable. Further, the 2nd speed driven gear is provided with a large-diameter gear meshing with a 2nd speed drive gear and a small-diameter gear provided bodily with the large-diameter gear, being fewer in tooth number and smaller in diameter than the large-diameter gear, and meshing with the reverse gear. Thus, the automatic dual-clutch transmission is reduced in diameter by not having an output shaft dedicated to the reverse gear and is able to set the gear ratio for reverse to be large. | 12-08-2011 |
| 20110185847 | CONTROL SYSTEM OF HYBRID POWER DRIVE APPARATUS - [Subject] In a hybrid drive power apparatus, distortional oscillation of power transfer shafts caused by fluctuation in output torque of an engine is restrained to prevent the occurrence of unpleasant noises such as hitting noise of gear teeth, harsh noise in the vehicle body and the like. | 08-04-2011 |
| 20110174557 | CONTROL SYSTEM OF HYBRID POWER DRIVE APPARATUS - [Subject]To rapidly rise a temperature of lubricant in a transmission housing of a hybrid drive power apparatus when the lubricant temperature is lower than a preset lower limit value. | 07-21-2011 |
| 20110167957 | AUTOMATIC DUAL-CLUTCH TRANSMISSION - An automatic dual-clutch transmission is able to establish a parking lock by bringing one of a first input shaft and a second input shaft into engagements with a low speed stage gear train as well as with a reverse stage gear train in performing a parking. Gears of an engaging member and a mating sleeve in at least one of a low speed stage shift clutch and a reverse stage shift clutch which are simultaneously brought into engagements to establish the parking lock are able to mesh with each other at axially extending side surfaces thereof which are formed to extend linearly in parallel to an axial direction thereof. | 07-14-2011 |
| 20100250080 | CONTROL APPARATUS FOR AUTOMATED MANUAL TRANSMISSION - A control apparatus for an automated manual transmission having a plurality of power transmitting units respectively including clutches for connecting and disconnecting a power transmission path between a power source and the automated manual transmission and transmission mechanisms connected to the corresponding clutches so as to transmit a power of the power source, includes a clutch temperature calculating means for calculating a temperature of each of the clutches, and a vehicle moving start controlling means for controlling a moving start of the vehicle so that when the temperature of one of the clutches, calculated by means of the clutch temperature calculating means, is equal to or higher than a predetermined usage restriction threshold value, the other one of the clutches is used so as to transmit the power of the power source to the other one of the power transmission units, having the other one of the clutches. | 09-30-2010 |
| 20100234174 | VEHICULAR POWER TRANSMISSION CONTROL APPARATUS - An apparatus comprises a changeover mechanism which is able to change a connection state of an electric motor output shaft to any one from alternatives consisting of “an IN-Connection State” in which a power transmission path is provided between a transmission input shaft and the electric motor output shaft, “an OUT-Connection State” in which a power transmission path is provided between the transmission output shaft and the electric motor output shaft, and “a neutral state” in which no transmission path therebetween is provided. The changeover is carried out based on a combination (area) of a vehicle speed V and a required driving torque T. As for the changeover, a neutral area is enlarged so that a possibility of selecting the neutral state becomes higher, as a battery temperature is higher, or as an electric motor temperature is higher, or as a remaining battery level is larger. | 09-16-2010 |
| 20100234173 | VEHICULAR POWER TRANSMISSION CONTROL APPARATUS - An apparatus comprises a changeover mechanism which is able to change a connection state of an electric motor output shaft to any one of states including, “an IN-Connection State” in which a power transmission path is provided between a transmission input shaft and the electric motor output shaft, “an OUT-Connection State” in which a power transmission path is provided between the transmission output shaft and the electric motor output shaft, and “a neutral connection state” in which no transmission path therebetween is provided. The changeover is carried out based on a combination (area) of a vehicle speed V and a required driving torque T. As for the changeover, an IN-connection area, in which an electric-motor-driving-wheels-maximum-torque is larger than in an OUT-Connection State and in a neutral connection area, is enlarged. | 09-16-2010 |
| 20100234169 | VEHICULAR POWER TRANSMISSION CONTROL APPARATUS - An apparatus comprises a changeover mechanism which is able to change a connection state of an electric motor output shaft to any one from alternatives consisting of “an IN-Connection State” in which a power transmission path is provided between a transmission input shaft and the electric motor output shaft, “an OUT-Connection State” in which a power transmission path is provided between the transmission output shaft and the electric motor output shaft, and “a neutral connection state” in which no transmission path therebetween is provided. The changeover is carried out based on a combination (area) of a vehicle speed V and a required driving torque T. As for the changeover, an (first, second) IN-connection area is more enlarged and the OUT-Connection area and the neutral connection area are more narrowed, as a temperature of a lubricating oil is lower. | 09-16-2010 |
| 20100200319 | CONTROL METHOD OF ELECTRIC ROTATING MACHINE IN HYBRID-TYPE POWER TRANSMISSION - A hybrid-type power transmission in which an internal combustion engine and an electric rotating machine are used as a source of power for driving an output shaft through a change-speed mechanism. In the hybrid power transmission, the operation of the electric rotating machine is controlled in such a manner that the rotation speed of a rotor-side rotary member is synchronized with the rotation speed of an input-side or output-side rotary member when the rotation speed of the rotor-side rotary member becomes higher in a predetermined difference than the rotation speed of the input-side or output-side rotary member in shifting operation of a sleeve coupled with the rotor-side rotary member. | 08-12-2010 |
| 20100029438 | SPEED CONTROL METHOD OF AUTOMATIC TRANSMISSION - A speed control method for an automatic transmission includes a first synchronizing process, in which a first clutch portion is operated to be in an engaging state in order to synchronize a first input shaft to a power source, a second synchronizing process, in which the first input shaft is synchronized to the output shaft by operating a gear train connected the first input shaft so as to be in an engaging state, after the first clutch portion is operated so as to be in the disengaging state and a torque transmission path switchover process for switching a torque transmitting path from a second input shaft to the first input shaft by operating the first clutch portion so as to be in an engaging state while the second clutch portion is operated so as to be in an disengaging state. | 02-04-2010 |
| 20100025176 | POWER TRANSMISSION APPARATUS - A power transmission apparatus includes a first power transmitting member, a second power transmitting member, a synchronizer ring, arranged between the first power transmitting member and the second power transmitting member, a sleeve held at the first power transmitting member, a synchronizer key arranged between the first power transmitting member and the sleeve, and a drag restricting member arranged between the first power transmitting member and the sleeve. A synchronizer ring engaging portion is formed at a side of the drag restricting member facing the second power transmitting member so as to protrude in the radially inward direction, and a drag restricting engagement portion is formed at the outer circumferential surface of the synchronizer ring at a side thereof facing the first power transmitting member, the drag restricting engagement portion being engageable with the synchronizer ring engaging portion. | 02-04-2010 |
| 20100024581 | DUAL CLUTCH TRANSMISSION - A dual clutch transmission includes a first and second input shaft, an output shaft, a dual clutch having a first clutch and a second clutch, a first and second gear transmission mechanisms, and a control device connected to an accelerator opening degree sensor, detecting an accelerator opening degree, and a rotational speed sensor, detecting a rotational speed of an engine, and is provided with a pre-shift control device pre-selecting the shift stage gear set for establishing the shift stage, which is one stage upper or lower than the shift stage established by the selected shift stage gear set from one of the first and second gear transmission mechanisms, when values of the accelerator opening degree, the rotational speed, and the rotation acceleration, becomes equal to or more than predetermined upper shift stage pre-shift setting values or equal to or less than predetermined lower shift stage pre-shift setting values. | 02-04-2010 |
| 20100000361 | SHIFT ACTUATOR ASSEMBLY - A shift actuator assembly includes a plurality of actuators each having a worm rotated by an electric motor and a worm wheel meshing with the worm and rotated corresponding to a rotation of the worm and the each worm wheel of the each actuator being rotated for operating each of a plurality of shift members so as to move independently, wherein the each worm wheel of the each actuator is arranged so as to be coaxial and overlap each other. | 01-07-2010 |
| 20090306864 | TRANSMISSION AND CONTROL METHOD THEREOF - A transmission includes a clutch mechanism, an input shaft, an output shaft, a transmission mechanism including a plurality of gears and a synchronizing device selectively synchronizing the input shaft and the gears, a gear selecting apparatus including sleeves and at least one actuator, the sleeve selectively moving to a neutral position, to an engaged position, and to a synchronized position, the actuator actuating the sleeve to selectively move to the neutral position and the engaged position, a controller controlling the clutch mechanism and the actuator, a synchronization device for controlling the actuator to select the sleeve corresponding to the selected gear and to move the sleeve to the synchronized position, and an auxiliary synchronization device for controlling the corresponding actuator to move the sleeve corresponding to an auxiliary gear which is the gear different from the selected gear to the synchronized position. | 12-10-2009 |
| 20090301251 | OPERATING DEVICE FOR MANUAL TRANSMISSION APPARATUS - An operating device for a manual transmission apparatus, comprising a plurality of operation shafts, a shift-and-select shaft having an engagement groove extending in a circumferential direction thereof, selecting one of a plurality of operation shafts by rotating and moving the selected operation shaft in an axial direction thereof by moving in an axial direction of the shift-and-select shaft, an operating portion for manually operating the shift-and-select shaft, an inertia unit including an engagement pin, positioned within the engagement groove and pivoting in response to a movement of the shift-and-select shaft in the axial direction thereof, and a swing-and-contact member provided at the engagement pin of the inertia unit so as to swing when being pressed by one of first and second inner surfaces of the engagement groove in accordance with the movement of the shift-and-select shaft and contacting the first and second inner surfaces of the engagement groove. | 12-10-2009 |
| 20090301250 | OPERATING DEVICE FOR MANUAL TRANSMISSION APPARATUS - An operating device for a manual transmission apparatus includes: a plurality of operation shafts, supported at a housing to move in an axial direction thereof and selectively engaging one of a plurality of shift gear sets by one of the plurality of the operation shafts being moved in the axial direction thereof; a shift-and-select shaft, supported at the housing, selecting one of the plurality of the operation shafts by rotating in a circumferential direction of the shift-and-select shaft and moving the selected operation shaft in the axial direction of the selected operation shaft by moving in the axial direction of the shift-and-select shaft; an operating portion for manually operating the shift-and-select shaft; and an inertia unit, including an engagement portion, which is engageable with the shift-and-select shaft, pivotably supported at the housing, and pivoting in response to a movement of the shift-and-select shaft in the axial direction thereof. | 12-10-2009 |
| 20090294241 | LUBRICANT DISCHARGING MECHANISM OF CLUTCH APPARATUS FOR TRANSMISSION - A lubricant discharging mechanism of a clutch apparatus for a transmission, which includes the clutch apparatus having at least one clutch mechanism provided in a clutch housing defined in a transmission case and a gear train provided in a gear train housing defined in the transmission case adjacent to the clutch housing, includes a retainer, a bore, and a guide member. The retainer is provided inside the clutch housing to surround the clutch mechanism for retaining therein a lubricant for lubricating and cooling the clutch mechanism. The bore is formed at an outer circumferential portion of the retainer for discharging therethrough the lubricant lifted radially outwardly by a centrifugal force generated by a rotation of the clutch mechanism to an outside of the retainer. The guide member is connected to the retainer for guiding the lubricant discharged from the retainer towards the gear train. | 12-03-2009 |
| 20090293661 | SHIFT APPARATUS OF AXIALLY MOVING SHAFT - A shift apparatus of an axially moving shaft includes a worm wheel engaging with a worm shaft, an electric motor driving the worm wheel, and an axially moving shaft including a rack engaging with a pinion fixed to the worm wheel for moving the axially moving shaft in first and second directions, a movement of the axially moving shaft in at least one of the first direction and the second direction is stopped by a portion of the axially moving shaft making contact with a portion of the casing, the worm shaft of which both axial ends are supported by the casing to be rotatable and axially movable, the worm shaft being biased by a spring in at least one of the first direction and the second direction and elastically retained at a position within an operating area of the worm shaft in the first direction and the second direction. | 12-03-2009 |
| 20090288928 | SYNCHROMESH DEVICE FOR TRANSMISSION - A synchromesh device for a transmission includes: a shaft; a sleeve; an idler gear; a gear piece; a synchronizer ring; a first spline, a second spline and a third spline, the first spline of the sleeve being engageable with each of the second spline of the gear piece and the third spline of the synchronizer ring; and a first chamfer, a second chamfer and a third chamfer, formed at one end of the first spline, one end of the second spline and one end of the third spline, respectively, for a spline-engagement and for a thrust-through operation. The first chamfer of the sleeve includes a small-diameter side thrusting through the third chamfer at the time of shifting and a large-diameter side thrusting through the second chamfer at the time of shifting. A chamfer angle of the large-diameter side is smaller than a chamfer angle of the small-diameter side. | 11-26-2009 |
| 20090266189 | CLUTCH CONTROL SYSTEM - A clutch control system includes a release fork including a press arm and a drive arm, the release fork operating a clutch to one of an engagement state and a disengagement state, a worm wheel rotatably supported by a wheel shaft and including teeth, a roller rotatably supported by a support pin of which one end is fixed to the worm wheel, the support pin extending in parallel with the wheel shaft while having a predetermined distance therefrom, and a worm driven to rotate by an electric motor and engaging with the teeth. When the worm wheel is driven by the motor, the roller presses a side portion of the drive arm to rotate the release fork, and a release bearing of the clutch is pressed by an end portion of the press arm to bring the clutch to one of the engagement state and the disengagement state. | 10-29-2009 |
| 20090266188 | CLUTCH CONTROL SYSTEM - A clutch control system includes a release fork rotatably supported by a release shaft via a support portion and including a press arm and a drive arm extending from the support portion, the press arm of which an end portion presses a release bearing provided at a clutch to bring the clutch to one of an engagement state and a disengagement state, a sector gear including sector teeth integrally formed at an end portion, the sector teeth being formed into an arc shape concentric to the release shaft, a worm wheel rotatably supported by a wheel shaft arranged in parallel with the release shaft, the worm wheel including teeth, a pinion gear integrally formed at the worm wheel and engaging with the sector teeth, and a worm driven to rotate by an electric motor and engaging with the teeth of the worm wheel to rotate the worm wheel. | 10-29-2009 |
| 20090260480 | DUAL CLUTCH TYPE AUTOMATED TRANSMISSION APPARATUS - A dual clutch type automated transmission apparatus includes first and second input shafts, an output shaft, a dual clutch mechanism having a first clutch actuator operating a first clutch portion for establishing/interrupting a first torque transmitting path and a second clutch actuator operating a second clutch portion for establishing/interrupting a second torque transmitting path, plural first gear trains, plural first connecting portions selectively connecting/disconnecting the first and second input shafts to/from the output shaft via one of the first gear trains, a second gear train provided between the first input shaft and the output shaft, and a second connecting portion provided at the second gear train and connected to the second clutch actuator. The second clutch actuator operates the second connecting portion to connect/disconnect the first input shaft to/from the output shaft via the second gear train while operating the second clutch portion to interrupt the second torque transmitting path. | 10-22-2009 |
| 20090241711 | HELICAL GEAR AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a helical gear, includes a gear cutting process for forming a roughly-processed gear by applying a gear cutting to an outer circumferential surface of a blank, and a tooth surface forming process for forming a tooth surface by pressing a rolling die against a roughly-processed tooth surface of the roughly-processed gear, wherein a length of a portion of the roughly-processed tooth surface, to which a plastic deformation is applied by the rolling die, in a face width direction is formed to be shorter than a length of a face width of the roughly-processed tooth surface. | 10-01-2009 |
| 20090133983 | COOLING STRUCTURE OF CLUTCH APPARATUS FOR TRANSMISSION - A cooling structure of a clutch apparatus for a transmission includes a housing, a partition wall provided inside the housing, first and second chambers respectively formed inside the housing at first and second sides of the partition wall, a clutch mechanism provided inside the first chamber. A cylindrical clutch case including an opening is provided at an outer circumference of the clutch mechanism. The cooling structure further includes a first communication passage communicating with the first and second sides of the partition wall, at least one helical protrusion provided at an outer cylindrical surface of the clutch case, and a guiding cylinder provided at an outer circumference of the clutch case with a space between the helical protrusion and the guiding cylinder. The helical protrusion guides the coolant existing between the clutch case and the guiding cylinder to the first chamber from an axial end portion of the guiding cylinder. | 05-28-2009 |
| 20090105042 | Driving Unit for Vehicle - A driving unit for a vehicle includes a transmission, a motor generator and a centrifugal release mechanism. The transmission is employed for transmitting a driving torque outputted from an engine to an output shaft operatively connected to a plurality of driving wheels. The motor generator is connected to the output shaft via a force transmitting mechanism. The motor generator functions as a motor for driving the output shaft in cooperation with the engine when supplied with electric current and functions as a generator when driven by the output shaft. The centrifugal release mechanism is provided at the force transmitting mechanism. The centrifugal release mechanism interrupts a force transmission between the output shaft and the motor generator in a predetermined driving state of the vehicle in which a running resistance applied to the driving wheels exceeds a driving force of the motor generator applied to the driving wheels. | 04-23-2009 |
| 20090090571 | DRIVING UNIT FOR VEHICLE - A driving unit for a vehicle includes plural gear sets, plural switching clutches, a lever member, an output shaft, a motor generator, a separating clutch provided for interrupting a force transmission between the output shaft and the motor generator, and a separating shifter supported to be movable in a direction of a selecting movement of the lever member between a first position and a second position. The separating clutch is connected to the separating shifter to operate the separating clutch to be engaged when the separating shifter is located at the first position and to be released when the separating shifter is located at the second position. The lever member is engaged with the separating shifter located at the first position when one of the gear sets for establishing the highest shift stage is selected and operates the separating shifter to move to the second position. | 04-09-2009 |
| 20090065306 | LUBRICATING OIL SUPPLY DEVICE - A lubricating oil supply device includes a casing including a cylindrical bore and a guide passage whose one end opens to an inside of the casing and whose the other end opens to the cylindrical bore, a rotational shaft including a center bore, an accommodating groove, and a discharge passage which corresponds to the guide passage and whose one end opens to the accommodating groove and whose the other end opens to the center bore, and a lubricating oil guiding member accommodated within the accommodating groove and including a cylindrical portion, a guide hole, which has a first inner side surface connected to an outer circumferential surface of the cylindrical portion so as to form an angle therebtween and a second inner side surface and which is always connected to the discharge passage, and a guide groove extending along the outer circumferential surface of the lubricating oil guiding member. | 03-12-2009 |
| 20090065283 | TRANSMISSION AND VEHICLE HAVING TRANSVERSELY MOUNTED TRANSMISSION AND ENGINE ARRANGED IN AXIAL DIRECTION THEREOF - A vehicle includes an engine, a pair of side frames extending along a vehicle body, and a transmission adapted to be axially connected with the engine and transversely mounted on the vehicle body, including, an input shaft, an output shaft, a first counter shaft, a second counter shaft, a reverse shaft, a first gear mechanism, a second gear mechanism, a third gear mechanism, a reverse movement gear mechanism and a transmission case, wherein the first and second gear mechanisms are arranged relatively close to the engine, the third gear mechanism is arranged more remote from the engine than the second gear mechanism, the transmission case includes a back wall portion having a first back wall portion, a second back wall portion and a third back wall portion, thereby forming a cut-out portion at an upper portion of the back wall portion. | 03-12-2009 |
| 20090065282 | TRANSMISSION AND VEHICLE HAVING TRANSVERSELY MOUNTED TRANSMISSION AND ENGINE ARRANGED IN AXIAL DIRECTION THEREOF - A vehicle includes an engine, a pair of side frames extending along a vehicle body in front-rear direction of the vehicle, a transmission adapted to be axially connected with the engine and adapted to be transversely mounted on a vehicle body, includes an input shaft, a first counter shaft, a second counter shaft, a first gear mechanism, a second gear mechanism, a third gear mechanism, and a transmission case, wherein the first and third gear mechanisms are arranged close to the engine, the second gear mechanism is arranged more distant from the engine, the second counter shaft is arranged above the input and the first counter shaft, and the transmission case forms a cut-out portion at an upper portion of the back wall portion of the transmission case. | 03-12-2009 |
| 20090065281 | TRANSMISSION AND VEHICLE HAVING TRANSVERSELY MOUNTED TRANSMISSION AND ENGINE ARRANGED IN AXIAL DIRECTION THEREOF - A vehicle includes an engine, a pair of side frames extending along a vehicle body in a front-rear direction of the vehicle, a transmission adapted to be axially connected with the engine and adapted to be transversely mounted on the vehicle body, includes an input shaft, an output shaft, a first counter shaft, a second counter shaft, a first gear mechanism, a second gear mechanism, a third gear mechanism, and a transmission case, wherein the first and second gear mechanisms are arranged relatively close to the engine, the third gear mechanism is arranged more remote from the engine than the second gear mechanism, the first counter shaft is arranged above the input shaft and the second counter shaft, and the transmission case forms a cut-out portion at an upper portion of a back wall portion of the transmission case. | 03-12-2009 |
| 20090042685 | TRANSMISSION - A transmission includes a rotary shaft, a clutch hub fixed to the rotary shaft a transmission gear rotatably provided at the rotary shaft, a gear piece connected to the transmission gear at the side of the clutch hub, a synchronizer ring positioned between the clutch hub and the gear piece, a sleeve held by the clutch hub slidably in an axial direction, a fork engaged with the sleeve and a fork shaft connected with the fork for shifting the fork in the axial direction. The transmission performs synchronization operation of rotation of the clutch hub and the transmission gear. The fork shaft has an in-shaft lubricant passage provided therein, a lubricant supply passage and a lubricant outlet passage. | 02-12-2009 |
| 20090036251 | TRANSMISSION FOR VEHICLE WITH MULTI-GEAR SET - A transmission for a vehicle includes first to fourth counter shafts arranged in parallel with one input shaft, a reduction gear set including first to fourth reduction gears respectively provided at an output shaft and first to third counter shafts for connecting the output shaft and the corresponding counter shafts, an intermediate gear set including a driving gear, a driven gear and an idling gear for connecting the input shaft and the fourth counter shaft, and first to third gear mechanisms each provided between corresponding two shafts and each having two gear sets and one switching clutch provided between the corresponding two gear sets for selectively establishing a power transmitting path between the corresponding two shafts via one of the two gear sets or via the other one of the two gear sets. | 02-05-2009 |
| 20080251324 | Lubricating structure for transmission - A lubricating structure for a transmission includes an axial hole formed penetrating through a gear shaft in an axial direction thereof and having a first opening at one axial end of the gear shaft for supplying therein a lubricant and a second opening at the other axial end thereof, a first oil hole provided on the gear shaft in a radial direction thereof to establish communication between the axial hole and an outside of the gear shaft, and a tapered groove provided on an inner wall of the axial hole in the axial direction thereof, wherein the lubricant is supplied to a portion needing lubrication via the axial hole or via the axial hole and the first oil hole, and the tapered groove is deeper at the second opening side than the first opening side. | 10-16-2008 |
| 20080250891 | Stopper structure of shift lever - A stopper structure of a shift lever, which is pivotally movably supported and adapted to a shift operation apparatus for changing shift stages of a transmission by an operation of the shift lever, includes a protruding portion and a plurality of recessed portions. The protruding portion is formed at an outer peripheral portion of the shift lever. The plurality of recessed portions is formed at a member being stationary relative to the shift lever. Further, the plurality of recessed portions is formed to correspond to a shifting pattern and to be selectively and releaseably fitted by the protruding portion when the shift lever is shifted to a predetermined shift position. | 10-16-2008 |
| 20080210030 | MANUAL TRANSMISSION AND VEHICLE HAVING TRANSVERSE-MOUNT ENGINE AND TRANSMISSION ARRANGED IN TANDEM - A vehicle includes an transverse-mount engine and a transmission having an input shaft, an output shaft, a first counter shaft, a second counter shaft, a first gear change mechanism, a second gear change mechanism, and a transmission case, wherein a number of the gear pairs of the second gear change mechanism is less than a number of the gear pairs of the first gear change mechanism, and the gear pairs of the second gear change mechanism are located close to the engine in an axial direction, thereby forming a cut-out portion in the transmission case, a side frame is arranged to pass through the cut-out portion of the transmission case. | 09-04-2008 |
| 20080202853 | Transmission Including Magnetic Sensor Device - A transmission includes first and second transmission shafts arranged parallel to each other and rotatably supported in a casing, plural gear trains arranged between the first and second transmission shafts, each gear train including a drive gear and a driven gear engaging with each other, the first and second transmission shafts transmitting power therebetween by means of one of the gear trains, a magnetic sensor device including a magnetic portion generating a magnetic field and a detection portion detecting a change of the magnetic field generated by the magnetic portion, a lubricant supply pump for suctioning a lubricant stored at a bottom portion in the casing and for sending the lubricant suctioned, and a lubricant supply pipe for ejecting the lubricant sent from the lubricant supply pump to the magnetic portion exposed within the casing. | 08-28-2008 |
| 20080196543 | GEAR-TYPE TRANSMISSION APPARATUS - A gear-type transmission apparatus includes a first input shaft, a second input shaft provided coaxially and rotatably relative to the first input shaft, a first counter shaft and a second counter shaft arranged in parallel to the first and the second input shafts, an output shaft, a dual clutch mechanism having a first clutch and a second clutch for transmitting a rotation of a driving shaft driven by a power source to the first and the second input shafts, a first gear change mechanism, a second gear change mechanism, a reverse gear set having a reverse shift stage driving gear, a reverse shift stage intermediate gear, and a reverse shift stage driven gear, and a switching clutch having a reverse shift stage engaging member for establishing/interrupting a torque transmission from the driving shaft to the output shaft via the reverse shift set. | 08-21-2008 |
