Class / Patent application number | Description | Number of patent applications / Date published |
081061000 | Pivoted pawl | 61 |
20080223179 | WRENCH - A wrench comprises a handle connected to a housing. A socket is rotatably supported in the housing for ratcheting movement relative to the housing. A retaining member releasably secures a device in the socket. A retainer is supported on the housing and is movable between a first position and a second position. The retainer, when in the first position, at least partially overlays the socket. A plurality of guides orient a member relative to the socket. The guides are mounted in a rotatable body. A first handle is permanently connected to the housing and a second handle is removably connected to the housing. | 09-18-2008 |
20090249923 | FASTENING DEVICE - A fastening device for the attachment of a structural member to a support member comprising a lower portion having a shank portion of for example annular circumference and being provided with means for the attachment to the support member, and further comprising an upper portion having a radial flange at the outer side and an axial passage, the shank portion being insertable into the axial passage from one end thereof, at least one outer side of the shank portion having an axially parallel extending row of saw-tooth-shaped teeth, a resilient pawl being formed at passage such that the pawl and the row of teeth cooperate ratchet-like when the upper portion is pushed onto the shank portion and blocks a displacement in the opposite direction. | 10-08-2009 |
20120000323 | SINGLE DIRECTION MECHANISM OF A RACHET WRENCH - The present invention discloses a single direction ratchet wrench which comprises a main body, a ratchet wheel, a pawl, an elastic element and a clip. The ratchet wheel and the pawl are lodged within the main body. The pawl has retaining cogs, concave surfaces and recess. One end of the elastic element is lodged within the second housing and the other end within the recess. The elastic element pushes the pawl with a particular angle so that the retaining cogs of the pawl are engaged with the ratchet teeth. | 01-05-2012 |
20120055289 | RATCHET WRENCH - A ratchet wrench for use in connection with medical instruments comprises a handle and a drive element which is rotatable around an axis (M) with respect to the handle. The wrench is adapted to tighten or loosen a respective element and a ratchet mechanism which is in connection with the drive element and which permits movement with respect to the handle in a first direction of rotation (R | 03-08-2012 |
20130333525 | RATCHET WRENCH - A ratchet wretch includes a first recess, a second recess and a third recess. A ratchet wheel is rotatably located in the first recess and a pawl is located in the second recess. The pawl has a curved recess defined in the rear side thereof and a protrusion extending therefrom. A first face is defined between the protrusion and the curved recess. A second face is defined in the pawl and located away from the third recess. The rotatable unit comprises a rotatable member, a first hat and a resilient member. The rotatable unit has a circular rod pivotably connected to the third recess. The circular rod has a restriction slot and three top surfaces. One of the top surfaces contacts the second face to restrict the rotatable member from disengaging from the third recess. The first hat and the resilient member are located in the restriction slot. | 12-19-2013 |
20140196576 | Controlling structure for a unidirectional ratchet wrench - A controlling structure for a unidirectional ratchet wrench contains a driving head of a unidirectional ratchet wrench, and driving head having a receiving cavity and a groove communicating with the receiving cavity. The receiving cavity has a driving member, and the driving member has a toothed portion. The groove has a retaining block received therein, and the retaining block has a plurality of locking teeth so as to engage with the toothed portion. The retaining block has a slot or a tab so as to retain with the elastic member. The elastic member has a fitting segment, a curved section, and an abutting segment, the fitting segment is fitted into the slot or is retained with the tab, the curved section extends outwardly from the fitting segment and becomes curved, and the abutting segment connects with the curved section and abuts against the groove. | 07-17-2014 |
20150075333 | WRENCH TOOL FOR SCREWDRIVER BITS - A wrench tool for screwdriver bits contains a body, a biasing member, and an elastic element. The body includes a tool seat received in an end portion thereof, the tool seat includes a fitting groove defined on a first end thereof and fitting with screwdriver bits, the fitting groove has a locking structure for retaining the screwdriver bits, and the tool seat further includes a second end communicating with the fitting groove. The biasing member is secured on the second end of the tool seat, the biasing member has a pushing portion fixed on a first end thereof and extending out of the fitting groove and has a pressing portion disposed on a second end thereof and pressed to push the screwdriver bits. The elastic element is mounted on the second end of the tool seat and used to push the biasing member to move back to an original position. | 03-19-2015 |
081062000 | Reversing | 54 |
20080229887 | Dual pawl ratchet mechanism and reversing method - A dual-pawl ratchet wrench mechanism is disclosed having a stop mechanism for limiting over-travel of a reversing lever for selecting drive directions. The stop mechanism is formed on a disc is selectively engageable with first and second pawls to move the pawls into and out of engagement with a ratchet gear to determine a torque drive direction, the ratchet gear capable of providing torque to a working piece in the selected drive direction. The design simplifies manufacturing. Additionally, the reversing lever is assembled with the mechanism in a manner to improve sealing. | 09-25-2008 |
20090007731 | FIXING STRUCTURE OF DIRECTION SWITCH BUTTON FOR REVERSIBLE WRENCH - The present invention refers to a fixing structure of direction switch buttons for a reversible wrench, in which a wrench is equipped with two direction switch buttons on the driving portion, button-restricting portions and location-restricting portions relative to the driving portion. The two direction switch buttons are arranged inside the driving portion by the method of insertion. Moreover, a button-fixing device is provided between the two direction switch buttons, the button-fixing device mainly includes an actuating member and a restoring member. The two ends of the actuating member are wedged into the two direction switch buttons respectively to drive the two direction switch buttons simultaneously. In addition, the actuating member is able to move elastically between the two direction switch buttons by means of the restoring member so as to connect the two direction switch buttons elastically. The objectives of fast connection, exact positioning and simultaneous actuation are achieved. | 01-08-2009 |
20090107299 | RATCHETING SERPENTINE BELT TOOL - A serpentine belt tool for releasing tension on a serpentine belt biased by an idler pulley includes an elongate handle which is connected to a ratchet mechanism. The pawl associated with the ratchet mechanism has three positions including a neutral position which facilitates placement of the tool on an idler pulley. | 04-30-2009 |
20090114066 | RATCHET SCREWDRIVER - A ratchet screwdriver includes a handle, a ratchet, a shaft and a finger ring. The handle has a body having a receiving chamber and a front through hole. The receiving chamber is formed in the body and communicates with the front through hole. The ratchet is mounted in the receiving chamber and has a keyed driving protrusion and a drive selector. The shaft is mounted rotatably in the body and has a proximal end being mounted securely on the keyed driving protrusion. The finger ring is mounted securely around the shaft outside the body and is smaller than the handle to allow quick and easy rotation of the shaft. | 05-07-2009 |
20090301264 | Three-Way Ratchet Drive Mechanism - A compact, three-way ratchet drive mechanism selectively enables ratcheting operation in a clockwise direction, or an anti-clockwise direction, or disables ratcheting behaviour. The mechanism includes a ratchet housing, a drive shaft, a ratchet wheel, J-shaped pawls, and a coaxially fitted selector sleeve for selecting a desired mode of operation. | 12-10-2009 |
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 |
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 |
20100116097 | RATCHETING DRIVER MECHANISM - A ratcheting mechanism includes a main body formed with a cylindrical seat and adapted to receive pawls rotatablly urged outward by a biasing element to selectively engage ratcheting teeth. An adjusting ring is positioned over the main body. The position of the adjusting ring determines the operational direction by selectively disengaging one of the pawls. The main body has an engagement end fixing the ratcheting mechanism to a handle body. | 05-13-2010 |
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 |
20110179913 | Wrench - A wrench includes a driving head, an axle hole formed at an end of the driving head, an accommodating portion disposed in the axle hole for accommodating pawls, a control ring contained in the axle hole and having an end extended out of the axle hole and coupled to a wrench handle, and a ratchet section and a smooth section defined on an external periphery of the control ring, and the ratchet section is provided for latching the pawls to define a fixed state of latching the wrench handle with the driving head and can be rotated into a secured status, and the smooth section is provided for pushing the pawls to release the fixed state of latching the control ring, so as to allow the wrench handle to be turned with respect to the driving head for a quick rotation. | 07-28-2011 |
20110296959 | ENHANCED RATCHET - A ratchet including a handle and a head connected to the handle. The ratchet further includes a rotating drum rotationally mounted within the head. A top edge of the rotating drum is open and a bottom edge of the rotating drum is closed by a surface. A rotating head extends from the surface of the rotating drum. One or more pawls within the head interact with the rotating drum to drive the rotating drum and rotating head in a first direction or a second direction in response to a force being applied to the handle. The ratchet includes a direction toggle connected to the one or more pawls being operable to engage the one or more pawls for selecting to drive the rotary head of the rotating drum in the first direction or the second direction corresponding to a first position or a second position of the direction toggle, respectively. | 12-08-2011 |
20120031239 | RETRACTABLE SCREWDRIVER - A retractable screwdriver includes a base, a first tube fitted on the base, a first transmission rod, a second tube, a second transmission rod, a rod member and a rotating member. The first transmission rod has a blind hole, a first engaging portion at one end and a gear shaft at the other end, and is axially meshing with a ratchet gear and inner teeth of a cap of the rotating member as well. The second transmission rod includes a through hole, a second engaging portion at one end to engage with the first engaging portion, and a threaded portion at an opposing end for a tightening nut to be secured thereon. The tightening nut enables to adjust the length of the rod member. The gear shaft meshes with the ratchet positioning assembly, preventing the screwdriver from reversing to an opposing direction. | 02-09-2012 |
20120036966 | RATCHET WRENCH WITH REVERSIBLE MECHANISM - The present invention relates to a ratchet wrench comprising a main body, a driving head, three pawls, a knurled rotatable disc, a linkage piece and a locking element. The driving head has a columned limit portion, and a polygonal columned couple portion for coupling a workpiece. The limit portion has three tangent planes with equal central angles each forming a recess cut for each pawl located. The linkage piece links the limit portion and penetrates the knurled rotatable disc to link with the locking element. The limit portion is mounted by a mounting piece which has three first sliding slots and three rails bored on it. Each pawl is guided by a relative rail, and has a rod extended upwards. The rod links to an elastic element which provides elasticity for the rod to move in radial direction. When the knurled rotatable disc is turned clockwise or counterclockwise to interact with the rod, the rod triggers the pawl to laterally move clockwise or counterclockwise, and the retaining cogs on one side of the pawl are, therefore, engaged with the ratchet teeth to control the driving head being turned clockwise or counterclockwise. | 02-16-2012 |
20120036967 | RATCHET WRENCH HAVING ROTATABLY ATTACHED SOCKETS - The ratchet wrench has a head section in at least one of its two ends. An engaging member is configured in the head section and a fitting element is in turn pin-joined to the engaging member. The rotational axis of the fitting element is orthogonal to an operational axis of the engaging member. Around the fitting element, one or more sockets of various sizes perpendicular to the rotational axis of the fitting element are provided. As such, there is no need to carry a large number of removable sockets and the sockets could be switched more quickly. In the mean time, as the ratchet wrench could be turned in a reciprocating motion to tighten or loosen a bolt or nut, without removing and refitting the ratchet wrench after each turn. The ratchet wrench of the present invention strikes a successful compromise between functionality and convenience. | 02-16-2012 |
20120167723 | BOX END RATCHET WRENCH WITH REDUCED RATCHETING ARC - A reduced arc box end ratchet wrench or ratchet drive wrench utilizes a multiple pawl ratchet assembly comprised of a body having an insert cavity to enclose critical components of an insert that is secured within the ratchet assembly. The insert is set into the wrench body and includes a plurality of pivoting pawls. Each pawl comprises a lever arm with ratchet engaging teeth. The pawl arms are positioned relative to the ratchet wheel to create “pawl swing arcs” and “reduced ratcheting arcs” to alternately or successively engage a portion of the teeth of a ratchet wheel at all times. This configuration allows smaller degrees between ratchet teeth and a smaller wrench rotation that is otherwise required to apply torque. | 07-05-2012 |
20120180603 | Ratchet Wrench with a Reduced Head - A ratchet wrench includes a connecting section between a head and a handle. The connecting section includes a vertical connecting portion integrally connected to a first side of the head. An extension extends outward from a section of an outer periphery of the head. A first compartment extends from the first side of the head through a second side of the head and rotatably receives a drive member. A second compartment is formed in a portion of the inner periphery of the first compartment aligned with the extension and receives two pawls releasably engaged with the drive member. The second compartment extends towards the extension. A first radius from the outer periphery of the head to a rotating axis defined by the head is smaller than a second radius from the extension to the rotating axis. | 07-19-2012 |
20120186403 | MULTI-SIZE RATCHET SOCKET WRENCH - A multi-size ratchet socket wrench comprises a ratchet unit disposed between a drive unit and a handle. The drive unit includes multiple forms of different sized engaging ends for driving different sized objects. Through the ratchet unit, the drive unit can rotate around the axial direction of the handle with respect to the handle and offers a ratchet function in the control direction of the user. By such arrangements, the multi-size ratchet socket can be applied in narrow space since it not only has multiple sizes of engaging ends but exerts a ratchet function, thus enhancing convenience in use. | 07-26-2012 |
20120192683 | HAND TOOL WITH A BUSHING - A hand tool with a bushing includes a receiving space defined in a driving head thereof, a ratchet assembly movably received in the receiving space for adapting to driving a work piece, and a bushing disposed between the ratchet assembly and an inner periphery of the receiving space. The ratchet assembly has an outer configuration substantially corresponding in geometry to the receiving space. When the ratchet assembly is operated, the bushing is able to sustain a wear of the ratchet assembly. | 08-02-2012 |
20130145906 | Ratchet Wrench Preventing Jam of Pawls - A ratchet wrench includes a head having a first compartment rotatably receiving a drive member. A second compartment is defined in an inner periphery of the first compartment and receives first and second pawls. A switch is pivotably mounted in a control groove of the head and controls engagement relations between the first and second pawls and the drive member. A limiting member is connected between the first and second pawls and maintains two closest teeth respectively of first and second toothed sections of the first and second pawls to be in a restraining spacing that is smaller than a jam spacing, preventing the first and second pawls from jamming between the drive member and a wall of the second compartment. | 06-13-2013 |
20140041489 | RATCHET SOCKET TOOL DEVICE - A ratchet socket tool includes a socket member having an internal gear, a driving member rotatably engaged in the socket member, two retaining rings engaged in the socket member, and a pawl engaged in the socket member and having a lever arm extended from a shaft, and one or more teeth formed on the lever arm for engaging with the internal gear, the shaft includes two end segments extended beyond the lever arm for forming two engaging surfaces and for engaging with the retaining rings and for allowing the retaining rings to apply a spring biasing force onto the end segments of the shaft and to force the teeth of the lever arm to engage with the internal gear. | 02-13-2014 |
20140150611 | One-Way Torque Tool - A one-way torque tool includes a head, a rotor placed in the head, a number of ratchets formed on the head, two pawls pivotally connected to the rotor and detachably engaged with the ratchets. The ratchets are separated from one another by a first angle α identical to 360 degrees divided by the number of the ratchets. The pawls are separated from each other by a second angle β identical to a multiple of the first angle α plus a third angle θ that is smaller than the first angle α. | 06-05-2014 |
20150059532 | Selectively One-Way Wrench - A selectively one-way wrench includes a handle, a socket, a pawl and a switch. The handle includes a grip, a head in a plane other than that of the grip, a transient portion extending to the head from the grip, and a recess in the head near the transient portion. The socket includes a series of teeth placed in the head. The pawl includes two pawls placed in the head and a spring for interconnecting the pawls. Each of the pawls includes teeth for engagement with the teeth of the socket. The switch includes a sliding unit movable between two positions for engagement with the pawls and a finger-contacting element extending from the sliding unit. The finger-contacting element is placed in the recess except an upper end placed above the grip. | 03-05-2015 |
20150059533 | Reversible Ratchet Wrench with a Smaller Rotational Angle - A reversible ratchet wrench includes a driving member received in a receiving space of a body, rotatable about a rotational axis relative to the body, and having an annular toothed portion. First and second pawls are aligned with each other along an axis parallel to the rotational axis and are alternatively disposed. The first and second pawls are received in a compartment in the body. One of the first and second pawls selectively meshes with the driving member. Each of the first and second pawls includes a ratcheting portion. The ratcheting portions selectively mesh with the annular toothed portion. A control member is pivotably received in the compartment. An end of the control member presses against the first and second pawls when the reversible ratchet wrench is switched between first and second positions. The control member can be actuated to move the first and second pawls. | 03-05-2015 |
20150122088 | RATCHET SCREWDRIVER - A ratchet screwdriver includes a mounting seat, a fixing ring, a control member, a driving shaft, four pawls and four springs. The mounting seat has a space, two first slots and two second slots. A passage is defined through the mounting seat. The first slots each have a first hole and the second slots each have a second hole. The driving shaft has a ratchet portion located in the space. The four pawls are biased by the four springs so as to be engaged with the ratchet portion. The fixing ring is connected to the mounting seat and the four pawls are pivotably connected to the fixing ring. The control member is rotatably mounted to the mounting seat and the driving shaft. The control member has two control plates to pivot the pawls to disengage from the ratchet portion of the driving shaft. | 05-07-2015 |
20190143490 | RATCHET HEAD WITH SAFETY SWITCH MECHANISM | 05-16-2019 |
081063000 | Single | 28 |
20090301267 | Ratchet Screwdriver and Construction Method - A ratchet screwdriver with an assembly of a handle ( | 12-10-2009 |
20100132517 | Ratchet wrench with socket quick release mechanism - A ratchet wrench includes a working head located forwardly on a handle. The working head has a body portion with a generally flat and generally uninterrupted upper surface and a cavity formed in an opposite lower surface with at least one actuator bore through the side wall of the body portion. A drive item is rotatably disposed in the cavity. A pawl item is disposed in the cavity to switch the drive direction of the drive item, and a pawl actuator pin is movably disposed in the actuator bore to switch the pawl. A retention plate may be used to mount the drive item and pawl item in the cavity plate. A quick release mechanism may include a longitudinally oriented and longitudinally slideable release actuator. The upper surface of the working head may be formed by the body portion or by a cover plate mounted thereto. | 06-03-2010 |
20100186554 | Wheel Wrench - A wheel wrench includes a body, a head, a fitting, and a ratcheting mechanism. The head is connected to one end of the body, wherein the length direction of the head and the length direction of the body are neither orthogonal nor parallel. The fitting is for a socket. The ratcheting mechanism couples the fitting to the head, wherein the length of the ratcheting mechanism is greater than the width of the fitting. | 07-29-2010 |
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 |
20100251859 | Universal Pawl Component for Open-ended Ratchet Wrench - The present invention relates to the field of open-ended wrenches, and more specifically to a pawl component which can be used within ratchet wrench housings having conventional dimensions to create an inexpensive open-ended ratchet wrench which can be easily mass-produced. | 10-07-2010 |
20100251860 | RATCHET HAND TOOL WITHOUT USE OF SWITCHING MEMBER - A hand tool includes a head in which a driving member is received and a pawl is engaged with the driving member. A handle has a substantially round driving end which is rotatably received in a pivoting recess in the head and a pushing member protrudes from the driving end and is engaged with the pawl. The handle includes two contact sides which alternatively contact two outward tapered sidewalls of a driving recess in the driving end when operating the handle. The pawl is shifted to contact the driving member by the teeth at different positions of the pawl when operating the handle to change the driving direction of the driving member. No switching member is connected to the pawl and protrudes from the top surface of the head of the hand tool. | 10-07-2010 |
20100275737 | BI-DIRECTIONAL RATCHET WRENCH - A bi-directional ratchet wrench includes a handle with a head at a front side formed a housing trough to hinge a ratchet wheel which has ratchet teeth on the perimeter and a knob strut jutting from one end surface, a switch element located in a swivel space formed at the housing trough with a plurality of harness teeth formed respectively on the left and right sides of a front end to allow the harness teeth on one side to engage with the ratchet teeth, and having a rear side formed with two concave portions, and confined at a selected swivel angle on the left and right sides by two retaining troughs formed in the swivel space, a butting unit having an elastic element embedded in the head and a spherical butting member butting the concave portions, and a sealing lid to seal the ratchet wheel and switch element. | 11-04-2010 |
20110056336 | Push-type ratchet wrench - A push-type ratchet wrench may be easily operated. At least one end of a handle has a head, in which a driving body for rotating a workpiece and an engaging block capable of selectively switching the rotation direction of the driving body are provided. Also, a control member for actuating the engaging block is provided on the head. The control member includes a base disposed in the head, and an actuating block pivotally mounted on the base. The actuating block has an actuating sheet passing through the base and extending toward the engaging block. A clamping slot is formed at a location corresponding to the engaging block so that the actuating sheet can be clamped by the engaging block, and the user can press the actuating block leftward/rightward to achieve the object of switching and to prevent the conventional problems of easily breaking and uneasily actuating. | 03-10-2011 |
20110067531 | Ratchet wrench handle - In order to avoid any unintended positive or reverse switch operation of a ratchet wrench handle A, an operation piece | 03-24-2011 |
20110079114 | RATCHET DEVICE - A ratchet device has a ratchet body, a rotating rod and a switching device. The ratchet body has a top and a central hole axially defined through the ratchet body. The rotating rod is mounted in the central hole and has a top and at least one lump notch defined on the top of the rotating rod. The switching device has a cover, a pivoting block and a switch. The cover is mounted securely on the top of the ratchet body and has a top. The pivoting block is mounted through the cover and abuts the top of the rotating rod and has a bottom and an eccentric lump. The eccentric lump protrudes from the bottom of the pivoting block and is inserted into one of the at least one lump notch. The switch is pivotally mounted in the cover and has a through hole mounted around the pivoting block. | 04-07-2011 |
20110094349 | RATCHET WRENCH - A ratchet wrench has a through cavity in which a reversing lever is disposed. The reversing lever has a pair of protruding lips formed thereon opposite from one another. A cooperating ledge is formed on the head in the cavity and on the pawl which is adjacent to the reversing lever. A spring-loaded pusher is disposed longitudinally in a blind bore in the reversing lever and the pusher engages a pocket in the pawl. A cover plate is disposed on a shelf recessed on the bottom of the wrench and spaced apart from the reversing lever. | 04-28-2011 |
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 |
20110162488 | Ratchet wrench - A ratchet wrench includes a wrench head having a pawl compartment formed between a notch and a chamber of the wrench head, a drive member mounted in the chamber of the wrench head and having a ratchet gear, a pawl slidably received in the pawl compartment of the wrench head for engaging with the ratchet gear and for controlling the driving direction of the drive member by the wrench head, a handle having a pivotal coupling member mounted in the notch of the wrench head, and an actuating member attached to the pivotal coupling member and engaged with the pawl for moving the pawl to either side of the pawl compartment of the wrench head in order to determine the driving direction of the drive member by the wrench head. | 07-07-2011 |
20110209585 | Wrench - A wrench includes a body, a first driving head, a second driving head, a first ratcheting mechanism and a second ratcheting mechanism. The first ratcheting mechanism connects the first driving head to the body. The second ratcheting mechanism connects the second driving head to the body. | 09-01-2011 |
20110239828 | RATCHETING WRENCH - A ratcheting wrench having ratchet structure, a ratchet body, a socket wheel, and a ratchet clutch. The ratchet body is received into the ratchet structure and is rotatable about a first axis. The socket wheel is received in an aperture in the ratchet body and includes a plurality of tool members that are spaced circumferentially apart from one another about a second axis that intersects the first axis but is not coincident with the first axis. The ratchet clutch is configured to control relative rotation between the ratchet structure and the ratchet body about the first axis. | 10-06-2011 |
20110296960 | Reversible ratchet wrench background of the invention - A reversible ratchet wrench includes a head and a handle, and a bore and a compartment formed in the head, a driving member includes a shank engaged in the bore of the head and a gear engaged in the compartment of the head, a pawl is pivotally mounted in the head and includes two engaging teeth for controlling the driving direction of the gear of the driving member relative to the head, the pawl includes two side seats and a middle seat, and a spring-biased projection is engageable with either of the side seats of the pawl for controlling the driving direction of the gear relative to the head, and is engageable with the middle seat of the pawl for disengaging the engaging teeth from the gear and for allowing the gear to be freely rotated relative to the head. | 12-08-2011 |
20120000324 | BIT OR FASTENER DRIVER - A tool includes a first bit receiving socket, a second bit receiving socket, and an angled metal structure. The angled metal structure includes a first end connected with the first bit receiving socket and a second end connected with the second bit receiving socket. | 01-05-2012 |
20120272793 | RATCHET WRENCH - A ratchet wrench includes a handle; a wrench head comprising a first cavity and a second cavity communicating therewith; a drive gear and socket combination rotatably disposed in the first cavity and comprising surface teeth; a reversing pawl comprising pawl teeth on one surface, the pawl teeth meshed with the teeth of the drive gear and socket; a pivotal unit pivotably disposed in the second cavity, the pivotal unit urging against the other surface of the reversing pawl and being adapted to reciprocally pivot about the reversing pawl; and a reversing button assembly moveably disposed on the wrench hand and aligned with an axial direction of the handle. The reversing button assembly is adapted to manually move along a straight line to activate the pivotal unit which pivots the reversing pawl so as to permit the drive gear and socket combination to rotate clockwise or counterclockwise. | 11-01-2012 |
20130118317 | WATER AND DUST RESISTANT RATCHET WRENCH - A ratchet wrench includes a handle, a ratchet wheel rotatably mounted in a head of the handle, a direction controller pivotally mounted in the head of the handle, and a pawl connected with the direction controller and engaged with the ratchet wheel. An O-ring is provided between the wall of a pivot hole of the handle head and the direction controller, such that the ratchet wrench is water and duct resistant so as to prevent the internal parts of the ratchet wrench from damage due to corrosion. | 05-16-2013 |
20130139655 | RATCHET WRENCH BEING CONVENIENTLY ASSEMBLED - A ratchet wrench includes a handle having a receiving hole, a ratchet wheel rotatably mounted in the handle, a direction controller pivotally mounted in the handle and provided at a periphery thereof with a guide groove, a pawl connected with the direction controller and engaged with the ratchet wheel, and a positioning member. When the direction controller is in a first position, a positioning ball of the positioning member is slidable to the receiving hole of the handle through the guide groove. When the direction controller is turned to a second position, the positioning ball is supported by a spring and engaged with a positioning notch of the direction controller so as to hole the direction controller in position. | 06-06-2013 |
20130220082 | RATCHET WRENCH - A ratchet wrench includes a wrench body having a circular space defined at a head portion of the wrench body, a ratchet with a hollow center placed into the circular space. The ratchet is symmetric to the wrench body. The inner wall of the ratchet has a plurality of first ridges formed thereon. A first recess is formed between each of two adjacent first ridges. Each of the first recesses selectively has a second ridge formed thereon. A second recess is defined on the second ridge. The shape of the second recess is as same as the first recess. In this way, a user can directly alternate the big and small bolts in the ratchet wrench, rather than turn over the wrench to fit the big or small bolt. | 08-29-2013 |
20140157959 | RATCHET WRENCH HAVING A REPLACEABLE TOOL HEAD - A ratchet wrench includes: a main body having a first accommodating space; a tool head disposed removably within the first accommodating space and having an annular groove formed in an annular peripheral surface thereof, and a ratchet tooth portion; a direction control unit including a pawl block, the pawl block having a middle portion connected pivotally to the main body, and two pawl tooth portions flanking the middle portion; and a covering unit including a mounting plate, and an insert member disposed movably on the mounting plate and biased to engage the annular groove. | 06-12-2014 |
20140208897 | RATCHET WRENCH - A ratchet wrench includes a body having a head portion, a handle portion extended from one end of the head portion, a first cavity and a second cavity mutually communicated in the head portion, a rotatable member rotatably accommodated in the first cavity having sloping teeth around the periphery thereof, a reversing member pivotally mounted in the second cavity defining opposing first and second bearing surfaces, a pawl set between the rotatable member and the reversing member having a shaft portion located between the first and second bearing surfaces and movable by the reversing member between first and second positions to force a toothed portion opposite with the shaft engaged with or disengaged from the sloping teeth, and a cover covering the cavities having a through hole for the passing of the rotatable member to rotate a wrench socket forward or backward. | 07-31-2014 |
20140260818 | ADJUSTABLE WRENCH DEVICE - An adjustable wrench device includes a housing engaged in a head and having an internal gear, a rotary member engaged in the housing, a sleeve attached to the housing and engaged with the rotary member for confining the rotary member in the housing, the sleeve includes an opening having two spirally arranged cam surfaces and having two or more pairs of depressions, two jaw members are engaged with the rotary member and moveable toward and away from each other to engage with either pair of depressions for adjusting the spacing distance between the jaw members and for adjustably gripping bolt heads or nuts or fittings of different sizes or dimensions or diameters. | 09-18-2014 |
20150053051 | Ratcheting Tool with Fine Toothing - A ratcheting tool comprises a drive housing provided with a housing cover and an actuating lever. A drive is arranged in the drive housing, wherein the drive comprises a rotary part with toothing rotatably supported in the drive housing. A connector serves for receiving plug-on or plug-in tools. A locking pawl is pivotally arranged in the drive housing, wherein the locking pawl comprises a toothing which engages the toothing of the rotary part for transmitting torque in one direction of rotation. A switch sets the direction of rotation and the engagement of the toothing of the locking pawl into the toothing of the rotary part. A hinge connection connects the locking pawl to the switch, wherein the switch comprises a switching pin which is rotatably supported in the drive housing. | 02-26-2015 |
20150298300 | RATCHET WRENCH - A ratchet wrench includes a body, a ratchet wheel, a pawl, a switch member and a resilient member. The body has three recesses to respectively accommodate the ratchet wheel, the pawl and the switch member. The pawl has a driving portion to be engaged with the toothed portion of the ratchet wheel. The pawl has a second engaging portion which is engaged with a first engaging portion of the ratchet wheel to position the ratchet wheel and the pawl in the two respective recesses respectively. The pawl has a protrusion which has a curved recess and a first stop. The switch member has a second stop, a reception recess and a hole. The protrusion is accommodated in the reception recess. The resilient member extends through the hole and the two ends of the resilient member contact the reception recess and the curved recess respectively. | 10-22-2015 |
20150314425 | RATCHET WRENCH WITH HANDGRIP RATCHET CONTROL - The ratchet wrench with handgrip ratchet control includes an axially rotatable rod installed within the handle. The rod is connected to a handgrip disposed externally to the handle. The rod rotates upon manual rotation of the handgrip. An end of the rod adjacent to the wrench head and opposite the handgrip has an axially offset flexible spring pin extending therefrom that engages a blind hole or receptacle in the back of the pawl in the wrench head. Rotation of the handgrip rotates the rod and its pin to swivel the pawl in the selected direction to lock rotation of the wrench drive in one rotational direction, while allowing rotation in the opposite direction. Rotation of the handgrip in the opposite direction reverses the above-described operation. One or more detents may be provided to secure the handgrip in the desired pawl actuating position. | 11-05-2015 |
20160101505 | Ratchet Wrench - A wrench includes a handle, a plate, a toothed wheel, a pawl, a switch and two detents. The handle includes a box end made with two spaces in communication with each other. The plate covers the spaces and includes two recesses in an upper side. The toothed wheel is inserted in the first space. The pawl is movable in the first space. The pawl includes a recess. The switch is inserted in the second space and includes a radial bore and a longitudinal bore. The first detent includes a portion inserted in the radial bore and another portion inserted in the recess of the pawl. The second detent includes a portion inserted in longitudinal bore and another portion for insertion in a selected one of the recesses of the plate. | 04-14-2016 |