| Patent application number | Description | Published |
|---|
| 20080202293 | Wrench Assembly - A wrench assembly includes a first wrench, a second wrench and a bar. The first wrench includes a first driving device at an end and a second driving device at an opposite end. The second wrench includes a first driving device at an end and a second driving device at an opposite end. The bar includes a first connecting device for connection to the second driving device of the first wrench and a second connecting device for connection to the first driving device of the second wrench. A first C-clip is provided to reinforce the connection of the first connecting device of the bar to the second driving device of the first wrench. A second C-clip is provided to reinforce the connection of the second connecting device of the bar to the first driving device of the second wrench. | 08-28-2008 |
| 20080264214 | Wrench with Reinforced Hollow Handle - A wrench with a reinforced hollow handle includes a head portion, a hollow handle portion, and a neck portion between the head portion and the handle portion. The handle portion includes a front portion having a wall thickness greater than a wall thickness of a rear portion, and a necking portion between the front and rear portion having a wall thickness greater than the wall thickness of the rear portion and smaller than the wall thickness of the front portion. The handle portion further includes an open rear end defining a rear end opening at the rear portion thereof Furthermore, in order to avoid depression of the handle portion resulting from holding force, the handle portion is made having hardness above 30 HRC. | 10-30-2008 |
| 20080301928 | Method for Producing Wrench Socket - A method for producing a wrench socket includes forging a metal blank to form a socket. An end of the socket includes an engaging hole for coupling with a wrench and an outer periphery surrounding the engaging hole. A support rod is inserted into the engaging hole of the socket. The support rod received in the engaging hole has a shape corresponding to that of the engaging hole. The outer periphery of the end of the socket is pressed to form size indicia on the outer periphery of the end of the socket. Surface treatment is carried out on the socket after the support rod is removed from the engaging hole of the socket. | 12-11-2008 |
| 20080302216 | Wrench Socket with Easily Recognizable Size Indicia - A wrench socket includes first and second ends spaced along a longitudinal axis. The first end includes a recessed indicia area formed in an outer peripheral wall face of a peripheral wall thereof. Size indicia extends outward from a bottom wall of the recessed indicia area and is integrally formed from a single homogenous material with the peripheral wall as a single continuous monolithic piece. The size indicia has a top face extending not beyond the outer peripheral wall face. The radii of the bottom wall and the top face are larger than a radius from the longitudinal axis to the outer peripheral wall face. Centers of curvatures of the bottom wall and the top face are located outside the longitudinal axis. | 12-11-2008 |
| 20080314779 | Hanger for Wrench - A hanger is disclosed for a wrench. The wrench includes a head and an insert connected with the head. The hanger includes a board and an aperture defined in the board for receiving the insert of the wrench. The edge of the aperture can hold the insert in position because of friction. | 12-25-2008 |
| 20080314782 | Hanger for Wrench - A hanger is disclosed for a wrench. The wrench includes a head and an insert connected with the head. The hanger includes a board and an aperture defined in the board for receiving the insert of the wrench. The edge of the aperture can hold the insert in position because of friction. | 12-25-2008 |
| 20090023504 | Universal Joint with Wider Working Angle Range - A universal joint includes a pair of yoke members each having a pair of spaced arms. A coupler is pivotably coupled with the arms of the yoke members to allow the yoke members to respectively pivot about two pivot axes perpendicular to each other. Each arm includes two mutually facing inner faces and an intermediate face interconnected between the inner faces. Each arm further includes a pair of opposite lateral sides between which one of the inner faces extends. A recess is formed between each lateral side of each arm and one of the inner faces of one of the arms. The recesses of the arms of one of the yoke members allow entrance of the arms of the other yoke member. | 01-22-2009 |
| 20090032484 | Display Rack Assembly for Wrenches with Different Handles - A display rack assembly includes a rack having two coupling sections for releasably and fixedly coupling with a first wrench with a first handle and a second wrench with a second handle. The second handle includes a handle section having two opposite wider faces perpendicular to two opposite wider faces of the first handle. The handle section further includes two opposite narrower faces perpendicular to two opposite narrower faces of the first handle. A customer may hold one of the narrower faces of the first handle and one of the wider faces of the handle section of the second handle and apply a rotational force to try the wrenches. | 02-05-2009 |
| 20090036222 | Pivotal Device for Universal Joint - A universal joint includes first and second yoke members each having a pair of spaced arms. A coupler includes a positioning hole in which an engaging member is received. Two pair of pins are extended through the arms of the first and second yoke member and through pin holes of the coupler into the positioning hole, allowing the first and second yoke members to respectively pivot about first and second pivot axes that are perpendicular to and intersect each other. The engaging member is movable between an engaged position engaged with the four pins and a free position disengaged from the four pins allowing detachment of the four pins. | 02-05-2009 |
| 20090038444 | Wrench - A wrench includes a body having a shorter first section with a compartment and a longer second section. First and second plates are respectively mounted to two sides of the first section. A drive member is rotatably received in mounting holes in the plates and the compartment. The first plate is sandwiched between the first section and a flange on an end of the drive member. A retainer is coupled with a coupling portion on the other end of the drive member to rotatably retain the drive member in place and to secure the first and second plates and the body together. A pawl is slideably received in the compartment and includes a toothed section biased by an elastic element to engage with an annular toothed portion of the drive member. The first and second plates and the body have aligned fixing holes through which a fastener extends. | 02-12-2009 |
| 20090041535 | Universal Joint with Larger Torque Capacity - A universal joint includes a pair of yoke members each having a pair of spaced arms. A coupler is pivotably coupled with the arms of the yoke members, allowing the yoke members to respectively pivot about two pivot axes perpendicular to each other. The coupler includes opposite first and second faces slideably abutting with inner faces of the arms of one of the yoke members, opposite third and fourth faces slideably abutting with inner faces of the arms of the other yoke member, and opposite filth and sixth faces. A length of each of the first, second, third, and fourth faces between the fifth and sixth faces is larger than 0.6 times a width between the first and second faces and smaller than a distance from one of the two pivot axes to an intermediate face between the inner faces of the arms of one of the yoke members. | 02-12-2009 |
| 20090056160 | CALIPER - A caliper includes a first leg and a second leg pivotably connected together at first ends thereof First and second abutting portions are respectively formed on second ends of the first and second legs. First and second slots are respectively defined in the first and second legs and between the first and second ends thereof An indicator is slideably received in the first and second slots. The indicator is slideable along the first and second slots to move the first and second abutting portions toward each other until the first and the second abutting portions respectively abut against two opposite sides of an object to be gauged by the caliper. The size of the object is indicated by an indicating portion of the indicator that points to a scale on one of the first and second legs. | 03-05-2009 |
| 20090199683 | Screwdriver with Ratchet Mechanism - A screwdriver includes a first body having an end for coupling with a handle, a second body rotatably coupled to the other end of the first body, two pairs of engaging members, and a switch member pivotably mounted to the first body. Each pair of engaging members is slidably received in an associated transverse receiving section that includes two end openings in an outer circumference of the first body. Each engaging member includes a first end with an engaging portion. An elastic element is mounted between second ends of each pair of engaging members for biasing the pair of engaging members away from each other. The switch member is pivotable to selectively engage at least one of the engaging portions of each pair of engaging members with teeth of the second body, thereby controlling relative rotation between the first body and the second body. | 08-13-2009 |
| 20090301265 | Ratchet Wrench with Three Operative Positions - A ratchet wrench includes a head ( | 12-10-2009 |
| 20090301266 | Switch Device for Ratchet Wrench - A ratchet wrench includes a head ( | 12-10-2009 |
| 20090309316 | Chuck for Bit - A chuck includes a body having an engaging groove for releasably receiving a bit. A sleeve is mounted around and movable relative to the body along a longitudinal axis of the body between a coupling position in which the bit is retained in the engaging groove and a releasing position allowing removal or insertion of the bit. The sleeve further includes an engaging section that slidably abuts a coupling section of the body. The engaging section is engaged with the coupling section to allow joint rotation of the body and the sleeve about the longitudinal axis. The sleeve further includes a flange with a frictional outer periphery to provide friction when the sleeve is manually rotated about the longitudinal axis by rotating the frictional outer periphery. Furthermore, the flange can be gripped by a user to move the sleeve to the releasing position. | 12-17-2009 |
| 20090309317 | Chuck for Bit - A chuck includes a body having an engaging groove for releasably receiving a bit. A sleeve is slideably mounted around the body. The body further includes an annular groove in an outer periphery thereof. The annular groove includes a positioning portion having an opening extending into the engaging groove. A positioning member is slideably received in the positioning portion and movable between a disengaged position disengaged form the bit and an engaged position. The positioning member in the engaged position has a portion extending through the opening into the engaging groove to engage with and retain the bit in the engaging groove. A retainer ring is mounted in the annular groove and clamps the positioning member in the engaged position. | 12-17-2009 |
| 20090311062 | Chuck for Bit - A chuck includes a body having an engaging groove for releasably receiving a bit. A sleeve is slideably mounted around the body. The body further includes an annular groove in an outer periphery thereof. The annular groove includes a positioning portion having an opening extending into the engaging groove. A retainer ring is mounted in the annular groove and includes a section extending into the engaging groove via the opening to engage with and retain the bit in the engaging groove. | 12-17-2009 |
| 20090314139 | Ratchet Wrench with Switch Moving in Transverse Direction - A ratchet wrench includes a head and a handle interconnected to the head. The head includes a first compartment rotatably receiving a drive member. Two pawls are slideably received in a compartment of the head. A switch is slideably received in a third compartment of the head between first, second, and third operative positions to change the driving direction of the ratchet wrench. An actuator is slideably received in the second compartment and includes two guiding portions selectively engaged with one of the pawls when the switch is in one of the first and second operative positions. The pawls are disengaged from the guiding portions and engaged with the drive member when the switch is in the third operative positions, allowing the handle and the drive member to rotate in either of two directions driving a fastener, and not allowing free rotation of the handle relative to the drive member in either of the two directions without driving the fastener. | 12-24-2009 |
| 20090320649 | Ratchet Wrench with Three Operational Positions - A ratchet wrench includes a body having a closed side and a compartment receiving a drive member and two pawls. A recessed portion is formed on an outer surface of the closed side. A switch is pivotably mounted in the recessed portion between first, second, and third positions. A control member is received in the compartment and pivotable together with the switch to press against one or both of the pawls. The recessed portion includes a positioning hole receiving a pressing device. When the switch is in the first or second position, the pressing device presses against one of two lateral sides of the switch to retain the switch in place. When the switch is in the third position, the pressing device is engaged with the switch and is intermediate the lateral sides. | 12-31-2009 |
| 20100000376 | Ratchet Wrench with three operational positions - A ratchet wrench includes a head rotatably receiving a drive member and slideably receiving two pawls each having a coupling portion. An elastic element is mounted between the pawls to bias the pawls to engage with a coupling section of the drive member. A ring is received in the head and pivotably mounted around an engaging portion of the drive member about a pivot axis. A reversing plate is pivotably mounted around a portion of the engaging portion of the drive member beyond the head about the pivot axis between first, second, and third operative positions. The reversing plate is connected to the ring to allow joint pivotal movement about the pivot axis. The ring includes a tail having two actuating portions respectively and releasably engaging with the coupling portions of the pawls responsive to movement of the reversing plate between the three operative positions. | 01-07-2010 |
| 20100018356 | Ratchet Wrench with Three Operative Positions - A ratchet wrench includes a body with a driving portion having first, second, and third compartments in communication with each other. A drive member is rotatably received in the first compartment. The driving portion includes first and second sides spaced in a thickness direction. The third compartment extends from the first side toward and spaced from the second side. The third compartment includes a bottom wall intermediate the first side and a center of the second compartment in the thickness direction. Two pawls are received in the second compartment and releasably engaged with teeth of the drive member. A control member is pivotably received in the third compartment and operable to selectively press against one of the pawls to change the driving direction of the ratchet wrench. | 01-28-2010 |
| 20100018357 | Ratchet Wrench with Three Operative Positions - A ratchet wrench includes a body ( | 01-28-2010 |
| 20100031782 | Positioning Device for Rotary Wrench - A rotary wrench includes a handle having a clamping portion with two arms. Each arm includes a holding portion having a hole. At least one of the holding portions includes a positioning section. Two axles are respectively formed on two sides of a head and rotatably engaged in the holes. At least one of the sides of the head includes a positioning portion releasably engagable with the positioning section so that the head is rotatable relative to the handle about an axis and positionable relative to the axis in one of a plurality of angular positions surrounding the axis. An adjusting member is mounted to the arms and operable to adjust the spacing between the arms to move the arms between a clamping position clamping the head and a releasing position not clamping the head. | 02-11-2010 |
| 20100031783 | Easy-to Manufacture Ratchet Wrench - A ratchet wrench includes a body having a first compartment rotatably receiving a drive member and a second compartment slideably receiving two pawls. A positioning member extends into the second compartment. A switch is slideably mounted to the body and includes two legs extending into the second compartment for moving the pawls. A restraining member is slideably received in the compartment and coupled to the legs to move therewith. The restraining member includes at least two positioning sections selectively engaged with the positioning member corresponding to at least two positions of the switch. | 02-11-2010 |
| 20100031787 | Tool Holding Device - A tool holding device is suitable to have an application with a power tool. The tool holding device includes a toolholder for receiving a bit. A sleeve is disposed outside the toolholder and is operable to move between a first position which allows for removal of the bit and a second position which allows the bit to be securely retained in the cavity of the toolholder. A returning member is disposed circumferentially between the toolholder and the second section of the sleeve for returning the sleeve to a neutral position between the first and second positions. Moreover, the sleeve of which does not surround the returning member abuts the toolholder. | 02-11-2010 |
| 20100037735 | Ratchet Wrench with Three Operative Positions - A ratchet wrench includes a drive member rotatably received in a body that includes a compartment extending from a first side toward and spaced from a second side of the body. A control member is pivotable between three operative positions to change the driving direction of the ratchet wrench. The control member includes a first end pivotably coupled to the drive member and a second end covering the compartment. The control member includes a control section selectively engaged with two pawls slideably received in the compartment and releasably engaged with teeth of the drive member. When the control member is in a second operative position, the pawls are engaged with the teeth of the drive member, allowing a handle of the body and the drive member to rotate in either of two directions driving the fastener, and not allowing free rotation of the handle relative to the drive member in either of the two directions without driving the fastener. | 02-18-2010 |
| 20100043518 | Methods for Manufacturing Combination Wrenches Without Generating Carbon Scale - A method for manufacturing a combination wrench includes pressing a wrench material piece in a sealed mold at a temperature without generating carbon scale to form a semifinished product including first and second driving ends and a handle interconnected between the first and second driving ends. The first and second driving ends of the wrench semifinished product are processed to form a combination wrench having a box end and an open end. The wrench material piece can be obtained by shearing a material plate. | 02-25-2010 |
| 20100043601 | Methods for Manufacturing Combination Wrenches Without Generating Carbon Scale - A method for manufacturing combination wrenches includes preparing a material plate having a plurality of wrench material pieces. Each wrench material piece is sheared off from the material plate and then pressed in a sealed mold at a temperature without generating carbon scale to form a semifinished product including first and second driving ends and a handle interconnected between the first and second driving ends. The first and second driving ends of the wrench semifinished product are processed to form a combination wrench having a box end and an open end. | 02-25-2010 |
| 20100170367 | Ratchet Wrench with Prevention of Tooth Damage - A ratchet wrench includes a drive member and a switch rotatably received in a body. A pawl is movably received in the body and has first and second sides. The second side of the pawl includes a pressing portion having upper and lower sections. The pressing portion further includes two pressing sections. Two positioning units are mounted between the switch and the second side of the pawl. The positioning units press against the upper and lower sections to bias the first side of the pawl to engage with the drive member. The positioning units press against one of the pressing sections corresponding to one of two positions of the switch. | 07-08-2010 |
| 20100170368 | UNIVERSAL JOINT - A universal joint includes a coupling member having an end for coupling with a tool. A body includes a rounded base pivotably mounted to the other end of the coupling member. The body further includes a drive column spaced from the rounded base along an axis. A reinforcing section is intermediate the rounded base and the drive column. The reinforcing section includes an outer periphery having a recessed portion with a receptacle extending in a radial direction perpendicular to the axis. A control member is moveably received in the receptacle to control coupling of the drive column and an object to be driven. In any case, a spacing from an outer end of the control member to the axis in the radial direction is substantially not larger than a spacing from the outer periphery of the reinforcing section to the axis in the radial direction. | 07-08-2010 |
| 20100186250 | Caliper - A caliper includes two legs pivotably connected together at first ends thereof. Second ends of the legs can abut opposite first and second sides of an object to be gauged. Each leg includes first and second faces extending between the first and second ends. A scale is formed on the first surface of each leg. Each leg further includes an inclined surface between the first and second faces. The size of the object is indicated by an intersection of the scales. The inclined surfaces of the legs abut third and fourth faces of the object so that the gauging result is reliable. | 07-29-2010 |
| 20100186555 | Dustproof Ring for Ratchet Wrench - A ratchet wrench includes a head rotatably receiving a drive member. The head includes an end wall having a hole. One of an inner face of the end wall and an end face of the drive member defines a first abutment face. The other of the inner face and the end face includes an annular groove having a bottom wall defining a second abutment face. A dustproof ring is mounted and compressed in the annular groove. The dustproof ring in an uncompressed state has a natural maximum height along a rotating axis of the drive member larger then a spacing between the first and second abutment faces. The dustproof ring includes three sealing units along a radial direction perpendicular to the rotating axis. Each sealing unit has a thickness along the rotating axis smaller than the spacing. | 07-29-2010 |
| 20100224035 | Driving Tool Kit Including Driving Tools and Method for Determining Driving Angles of Driving Tools - A driving tool kit includes at least three driving tools each having an opening for selectively receiving one of first and second fasteners with nominal sizes of different units. The opening includes an inner periphery having a plurality of driving sections. Each driving section includes first and second planar driving faces meeting at an intersection and at an obtuse driving angle to each other. The intersections of the driving sections are capable of engaging with sides of a larger one of the first and second fasteners. The first planar driving faces and the second planar driving faces of the driving sections are capable of selectively engaging with sides of a smaller one of the first and second fasteners. The driving angles of the driving tools are different from one another and can be determined by a method. | 09-09-2010 |
| 20100236363 | Dustproof Seal for Ratchet Wrench - A ratchet wrench includes a head having a compartment rotatably receiving a drive member. Two gaps are defined between the head and the drive member. The drive member includes a dust groove intermediate the gaps along an axis. The dust groove includes first and second faces spaced along the axis and a third face extending between the first and second faces. A dustproof seal is compressed and received in the dust groove to block communication between the gaps. The seal includes a ring having first and second surfaces spaced along the axis. An outer periphery of the seal presses against a peripheral wall of the compartment. A wing extends from one of the first and second surfaces of the ring, presses against one of the first and second faces of the dust groove, and is not in contact with the third face of the dust groove. | 09-23-2010 |
| 20100294092 | Tool Assembly with Coaxial/Universal Coupling - A tool assembly includes a body having a receptacle. An adapter includes a shoulder, a head, and a neck interconnecting the head and the shoulder. The head engages with an inner periphery of the receptacle, allowing joint rotation of the adapter and the body. The head is slideably received in the receptacle between first and second positions. A C-clip is received in a retaining groove in the inner periphery of the receptacle. When the head is in the first position, the shoulder is received in the receptacle, the C-clip distends and clamps the shoulder to keep the adapter to be coaxial to the body. When the head is in the second position, the shoulder is outside of the receptacle, the C-clip abuts an outer periphery of the head, and the head is rotatable to a position such that the adapter is at an angle to the body. | 11-25-2010 |
| 20100319499 | Extension for Wrench - A wrench includes a handle having first and second ends spaced along a longitudinal axis. The second end of the handle includes a first receptacle extending in a radial direction perpendicular to the longitudinal axis. The handle further includes a second receptacle intermediate the first and second ends along the longitudinal axis. The second end of the handle is slideably received in an extension. A positioning hole extends from an inner periphery through an outer periphery of the extension. A first positioning member is mounted in the first receptacle and biased by a first spring to extend through the positioning hole, with a portion of the first positioning member pressing against the inner periphery of the extension. A second positioning member is mounted in the second receptacle and biased by a second spring to press against the inner periphery of the extension. | 12-23-2010 |
| 20110048178 | Ratchet Wrench - A ratchet wrench includes a head having a compartment rotatably receiving a drive member. A pawl groove is formed in an inner periphery of compartment and slideably receives two pawls. A slot is formed in a side of the head and in communication with the pawl groove. A first end of a control plate is pivotably mounted to an engaging portion of the drive member extending beyond the side of the head via a hole in the side. A second end of the control plate includes two legs extending through the slot into the pawl groove for actuating the pawls upon rotation of the control plate to change a driving direction of the ratchet wrench. A positioning device is provided to position the control plate. | 03-03-2011 |
| 20110048179 | Ratchet Wrench - A ratchet wrench includes a head having a compartment. The compartment includes a first compartment section rotatably receiving a drive member and a second compartment section slideably receiving two pawls releasably engaged with the drive member. A switch is rotatably received in a switch groove formed in a side of the head and in communication with the second compartment section. A reversing plate is rotatably mounted to an engaging portion of the drive member extending beyond the head. The reversing plate includes a control section having a guiding groove. The switch includes a pin slideably engaged in the guiding groove. The switch pivots in the switch groove with the pin sliding in the guiding groove when the reversing plates pivots to control engagement between the drive member and the first and second pawls for controlling a driving direction of the ratchet wrench. | 03-03-2011 |
| 20110088519 | Compact Tool Box with Ratchet Driving Function - A tool box includes a body having a front end and a force-receiving portion spaced from the front end. The body further includes first and second sides and two lateral walls. The lateral walls, the front end, and the force-receiving portion are integrally formed as a single and inseparable component of the same material. The front end includes a compartment. A receiving space is defined between the lateral walls and has an opening in the second side or the force-receiving portion. A ratcheting mechanism includes a main body mounted in the body and a ratchet wheel rotatably received in the main body. The ratchet wheel is located in a quarter corner of the body adjacent to the front end and the first side. A driving groove is defined in the ratchet wheel for engaging and driving a shank to rotate. A bit-receiving rack is removably received in the receiving space. | 04-21-2011 |
| 20110091268 | Driving Assembly with Locking Function - A driving assembly includes a body having first and second sides and an outer periphery extending between the first and second sides. A through-hole extends through the outer periphery of the body and receives a rod. A receiving groove is formed in the outer periphery and has an opening in the first side. A control groove is formed in a bottom face of the receiving groove. A driving portion extends from the first side of the body and includes a limiting groove receiving a limiting member and a positioning hole receiving a positioning member. A control member is received in the control groove and includes a control end received in the receiving groove. The control member is operable by a user to move the positioning member through transmission by the limiting member, allowing engagement with or disengaging from a workpiece. | 04-21-2011 |
| 20110107879 | Ratchet Wrench - A ratchet wrench includes a head having a compartment rotatably receiving a drive member. A pawl groove is formed in an inner periphery of compartment and slideably receives a pawl. A switch is received in a switch grove in the head and pivotable about a pivoting axis. A control member is movable between two positions to control engagement between the pawl and the drive member through sliding movement of a guide of the switch in a control groove in the control member. The guide of the switch contacts the contact groove at a contact point when the control member is in either operative position. A tangent to an outer surface of the guide at the contact point has an angle not larger than 45° relative to a reference line extending perpendicularly to the pivoting axis and intersecting a longitudinal axis of the guide. | 05-12-2011 |
| 20110120895 | Compact Tool Box with Ratchet Driving Function - A tool box includes a body having a front end and a force-receiving portion spaced from the front end. The body further includes first and second sides and two lateral walls. The front end includes a driving groove for receiving a shank in an operative position. A receiving space is defined between the lateral walls and has an opening. The force-receiving portion includes an insertion groove for receiving the shank in a storage position. The insertion groove is in communication with the driving groove of the body. The body further includes a first opening extending from one of the lateral walls through the insertion groove and a second opening extending from the other lateral wall through the insertion groove, allowing access to the shank in the storage position for manual removal of the shank from the insertion groove. A bit-receiving rack is removably received in the receiving space. | 05-26-2011 |
| 20110126678 | Ratchet Device - A ratchet device includes a body having a compartment extending along a first axis. A ratchet member is rotatably received in the compartment about the first axis. The body includes first and second sides each having a receptacle in communication with the compartment. A ratchet block is received in each receptacle. A control member is received in a groove in a top side of the body. The groove is in communication with the compartment via an opening. The control member is movable between three positions along an axis perpendicular to but spaced from the first axis to disengage a toothed portion of either of the ratchet blocks from teeth on the ratchet member so as to control the driving direction of the ratchet device. | 06-02-2011 |
