One-way Detent Drive, E.g., Ratchet Patents (Class 81/60)
  • Patent number: 10166659
    Abstract: A ratchet wrench may comprise a main body, a circular ratchet gear, a locating unit, a spring and at least an accessory tool. The main body has an operating rod and a head portion, and an operating hole penetrates through a central portion of the head portion. Also, the ratchet gear is installed inside the operating hole. The locating unit is configured to extend toward an interior of the operating hole through an engaging portion thereof, and a peripheral groove is located at an end of the accessory tool along an outer periphery thereof. By engaging the engaging portion of the locating unit with the peripheral groove of the accessory tool, the accessory tool inserted into the connecting hole is configured to be secured on the main body for operation.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 1, 2019
    Assignee: Powagrip Industrial Co. Ltd.
    Inventor: Chin-Ying Chou
  • Patent number: 10105831
    Abstract: A ratchet tool includes a cylindrical ratchet handle. The ratchet handle has an accommodation cavity therein. A multi-tool assembly is provided in the accommodation cavity and rotatable relative to the accommodation cavity. The present invention has a simple structure and is convenient for use. Multiple tools are provided to become one-piece. The entire contour is cylindrical, which is convenient for the user to hold the ratchet tool.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: October 23, 2018
    Assignee: SHANGHAI EASY-USE TOOLS ENTERPRISE CO. LTD
    Inventor: Shiyu Sun
  • Patent number: 10093002
    Abstract: A ratchet wrench with tooth breakage resistance includes a body having a driving hole and a transmission hole intersecting with the driving hole. An inner periphery of the driving hole includes two adjoining portions on opposite sides of the transmission hole. An arcuate portion extends between the two adjoining portions. A tooth breakage preventing device is mounted in the arcuate portion and is configured to be in contact with one of first and second outer toothed sections of either of two first pawls to prevent tooth breakage between a toothed portion of the driving hole and the one of the first and second outer toothed sections of either of the two first pawls when the body is rotated to provide a ratcheting function for driving the fastener.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 9, 2018
    Inventor: Bobby Hu
  • Patent number: 10076829
    Abstract: This disclosure discloses a multifunctional screwdriver, comprising a handle, wherein an end of the handle is detachably inserted with a matching shaft; a ratchet head, in which a matching hole is provided, and the matching shaft is detachably inserted in the matching hole; the ratchet head includes a ratchet shell, a ratchet cap, ratchet teeth, and a plurality of reinforcing rings provided in the ratchet shell, the ratchet teeth pass through the plurality of the reinforcing rings and are fixed on a cylinder in the ratchet shell, the ratchet cap seals the ratchet teeth and the plurality of the reinforcing rings within said ratchet shell, internal of said ratchet shell is also provided with a ratchet mechanism. This disclosure solves the problem that screws/nails may rotate reversely during the operation process and effectively improves the work efficiency of the screwdriver.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: September 18, 2018
    Assignee: SHANGHAI EASY-USE TOOLS ENTERPRISE CO. LTD.
    Inventor: Shiyu Sun
  • Patent number: 9931737
    Abstract: A ratchet wrench with efficient driver changing function includes a wrench body having a head and a handle, a first slot passing through the first side and connected with a second slot; a ratchet ring, rotatable disposed in the first slot and having a polygonal inner hole for receiving a driver; a direction switching member, disposed in the second slot and having a rotating operation mode and a pressing operation mode; a ratchet block, disposed between the first slot and the second slot that when the direction switching member is at the rotating operation mode, the ratchet ring is driven unidirectionally; a top lid, fixed on the head; and a position limiting plate disposed between the top lid and the head that when the direction switching member is at the pressing operation mode, the position limiting plate engages or disengages the driver.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 3, 2018
    Inventor: Yu-En Kao
  • Patent number: 9868189
    Abstract: A ratchet wrench includes a head with a first room in which a ratchet wheel is rotatably received. A second room is defined in the inner periphery of the first room and a pawl is received in the second room. The pawl is biased by a resilient member in a recess defined in the inner periphery of the second room. A restriction member is located in the second room and has a first contact portion for contacting one end of the pawl, a second contact portion for contacting the engaging teeth of the pawl, and a contact corner for contacting the inside of the second recess. A gap between the first contact portion and the end of the pawl is 0 to 1 mm. The restriction member restricts the movement of the pawl in the second room.
    Type: Grant
    Filed: November 1, 2015
    Date of Patent: January 16, 2018
    Inventor: Li-Ching Lin
  • Patent number: 9862076
    Abstract: A ratchet wrench includes a handle and a head through which a hole is defined. A recess is defined in the inner periphery of the hole. A driving member is rotatably received in the hole. A pawl and a positioning member are respectively located in two respective ends of the recess. A spring is connected between the pawl and the positioning member. The pawl has a slot defined in a lateral side thereof so as to be connected to one end of the spring. The positioning member is a resilient member and has an engaging portion and a curved portion. An opening is defined between the engaging portion and the curved portion. The other end of the spring is engaged with the opening. The spring linearly biased between the pawl and the positioning member to engage the pawl with the driving member.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 9, 2018
    Inventor: Jim Lai
  • Patent number: 9844860
    Abstract: A spring component for a ratcheting mechanism, such as a ratchet wrench. The spring component is shaped to be retained in a recess without any special machining. For example, the spring component can be retained at three abutment points. A leaf of the spring component can abut a pawl, and a base portion opposite the leaf can abut the drive gear. Support arms can abut the sidewall of the recess to retain the spring component within the recess without the need for special machining or tooling.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: December 19, 2017
    Assignee: Snap-on Incorporated
    Inventor: David T. Ross
  • Patent number: 9643299
    Abstract: The present invention discloses a ratchet device, cylindrical through holes are arranged at the center of the pawl base and switch-shift cover, the rod body passes through the cylindrical through hole of the pawl base and switch-shift cover, two oblique openings are arranged on the pawl base, a transverse slot is arranged on one side of the periphery of the pawl base, a ratchet base is arranged on the rod body, a ratchet is arranged at one end of the periphery of the ratchet base, the claw of the pawl engages with the ratchet of the ratchet base in an up-down way, a flange is arranged on the external of the pawl. The ratchet structure is configured to achieve the up-and-down motion on the vertical direction, which is convenient for users, easy to use, excellent in saving strength and in improving work efficiency.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: May 9, 2017
    Assignee: SHANGHAI EASY-USE TOOLS ENTERPRISE CO., LTD.
    Inventor: Shiyu Sun
  • Patent number: 9630300
    Abstract: A reversible ratchet wrench includes a direction-selecting rotary knob disposed rotatably on a driving head and rotatable relative to the driving head between a clockwise position and a counterclockwise position such that, at the clockwise position, a pawl unit is connected between the driving head and a ratchet head so as to allow for clockwise co-rotation of the driving head and the ratchet head, while preventing counterclockwise co-rotation of the driving head and the ratchet head, and at the counterclockwise position, the pawl unit is connected between the driving head and the ratchet head so as to allow for counterclockwise co-rotation of the driving head and the ratchet head, while preventing clockwise co-rotation of the driving head and the ratchet head.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: April 25, 2017
    Inventor: Kun-Che Wu
  • Patent number: 9415486
    Abstract: The present invention relates to a one-way freewheel clutch type wrench, more specifically to an indicator mechanism for providing audible and/or tactile feedback when a one-way freewheel clutch wrench is rotated in the unrestricted, or “reloading”, direction. The indicator mechanism has a ratchet wheel with teeth attached to a one-way freewheel clutch socket which interacts with at least one indicator located in a pocket of the box-end of the wrench.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: August 16, 2016
    Assignee: A & E Incorporated
    Inventors: Jonathan L. Ludtke, Timothy Alho
  • Patent number: 9409284
    Abstract: A ratchet handle includes a detent. A front part of the detent has a first meshing portion and a second meshing portion to mesh with a ratchet gear. An accommodation recess is provided between the first meshing portion and the second meshing portion. An auxiliary member is provided in the accommodation recess. The auxiliary member has a curved surface corresponding to an outer contour of the ratchet gear. The ratchet handle further includes an operating device. The operating device is operated to turn the detent so as to control the first meshing portion or the second meshing portion to mesh with the ratchet gear. The detent of the present invention is turned with less noise and moved stably.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: August 9, 2016
    Assignee: SHANGHAI EASY-USE TOOLS ENTERPRISE CO. LTD.
    Inventor: Shiyu Sun
  • Patent number: 9327389
    Abstract: A ratchet wrench includes a wrench body, a ratchet assembly and a C-ring. The wrench body has a driving head at one end. The driving head has a cavity therein and a retaining groove defined in an inner periphery of the cavity. The ratchet assembly is mounted in the cavity of the driving head. The C-ring is configured to retain the ratchet assembly in place and defines an outer portion and an inner portion. The C-ring has two free ends, and at least one of the two free ends has an oblique face with a pointed edge towards an inside of the C-ring, which is allowed to pry the C-ring moving inward to be detached.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 3, 2016
    Inventor: Yi-Fu Chen
  • Patent number: 9114509
    Abstract: A ratcheting wrench includes a handle and a working end. A body is combined to the working end of the handle for rotation with respect to the working end around a first axis. A pawl couples the working end of the handle to the body for one-way rotation of the body around the first axis. A removable insert is coupled to the body for rotation with respect to the body around a second axis that is perpendicular to the first axis. A catch assembly selectively couples the insert to the body, so that the insert can be removed.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 25, 2015
    Assignee: Meridian International Co., Ltd.
    Inventors: Dominic Lovely, Anthony Kriz, Brent Christopher
  • Patent number: 9073184
    Abstract: 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.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: July 7, 2015
    Assignee: YUNG FONG TOOLS CO., LTD.
    Inventors: Yu Wen Chen, Tien Sung Chen
  • Patent number: 9038506
    Abstract: A socket wrench with a positioning device contains: a body including an accommodating cavity, a first face, and a second face. A toothed holder is accommodated in the accommodating cavity and has a polygonal groove, a first circular portion, a second circular portion, and a ratchet protrusion between the first circular portion and the second circular portion. The first circular portion is inserted to the first face, the second circular portion is inserted to the second face, and the ratchet protrusion engages with a ratchet device. A positioning device includes at least one retaining element disposed on the first circular portion and horizontally moving in the polygonal groove. The first circular portion has a resilient element and a pressing loop which are fitted on the first circular, and the pressing loop has a recess defined on an inner face thereof to correspond to the at least one retaining element.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: May 26, 2015
    Inventors: Miao-Chi Huang, Jen-Kai Li
  • Publication number: 20150135908
    Abstract: A ratchet wrench comprises a handle defining a cavity including a plurality of teeth on an inner periphery thereof, a wheel, a biasing spring ring, and at least one tooth pawl mounted in recesses formed on the outer periphery of the wheel. The wheel is rotatably mounted inside the cavity and the pawls are biased by the spring ring to engage the plurality of teeth on the inner periphery of the cavity when rotated in a first direction, and to slide over the teeth engage the plurality of teeth on the inner periphery of the cavity when rotated in a direction opposite the first direction.
    Type: Application
    Filed: October 7, 2014
    Publication date: May 21, 2015
    Inventors: BRENT SOLAR, Mark Robert Stanley
  • Publication number: 20150128767
    Abstract: A penetration-type ratchet wrench includes a wrench body having a ratchet wheel assembled in the interior. The ratchet wheel is formed with a polygonal sleeve joint hole for a sleeve to be fitted therein and has one end protrusively formed with a first neck. When the first neck has its outer circumferential side cut into a ring groove through lathe processing, the corners in the sleeve joint hole will respectively and transversely formed into a curved elastic plate. The elastic plates of the ratchet wheel can elastically stop the joint portion of the sleeve for restrictedly positioning the sleeve in the sleeve joint hole and also can elastically and tightly push against the outer circumferential wall of the sleeve for firmly clamping and securing the sleeve in the interior of the wrench body.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Inventor: Chia-Yu CHEN
  • Patent number: 9027444
    Abstract: A ratchet wrench includes a wrench body, a ratchet rotatably mounted in the wrench body and defining therein a through hole for accommodating a screw nut, a magnetic member mounted in the through hole, and one or multiple limiters mounted in the through hole of the ratchet to hold the magnetic member in place. Thus, the opposing ends of the ratchet can be selectively used to accommodate a mating screw nut and the accommodated screw nut can be secured in place inside the ratchet by the magnetic attractive force of the magnetic member, avoiding screw nut displacement or falling and facilitating the use of the ratchet wrench. Further, the ratchet can be configured to have a stepped through hole for selectively accommodating different sizes of screw nuts.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: May 12, 2015
    Inventor: Chih-Ming Chang
  • Publication number: 20150122087
    Abstract: A wrench includes a first part having a first pivotal portion, a first recess and a first hole, a second part having a second pivotal portion, a second recess and a second hole, and a third part which is received in the first and second recesses. The third part has third, fourth and fifth holes, and a control slot. A control unit is connected to the third part and has four urging members, two first acting members and a second acting member. The urging members are located in the third and fourth holes, and engaged with the first and second holes to pivotably connect the first and third parts, and the second and third parts. The first acting members are located in the fifth hole. The second acting member is located in the control slot and controls the first acting members to contact and the urging members or not.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 7, 2015
    Inventor: Cheng-Pu Yang
  • Patent number: 9021922
    Abstract: An insulating ratchet wrench includes a wrench body, a ratchet assembly, a main insulator and a knob. The wrench body is covered with the main insulator. The main insulator has a first insulating ring and a second insulating ring. The first insulating ring has a main annular wall and a sub annular wall. The knob has a main annular groove and a sub annular groove. Under this arrangement, the knob is assembled with the main insulator by the main annular groove and the sub annular groove sleeving onto the main annular wall and the sub annular wall respectively so as to form an overlapping structure between the ratchet assembly and the knob. When a user rotates the knob or holds the wrench body near the ratchet assembly, the main insulator avoids an electric shock in a saltatory conduction manner from a charged object via the ratchet assembly.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: May 5, 2015
    Inventor: Jim Lai
  • Patent number: 9016174
    Abstract: A ratchet wrench includes a reception hole defined through the function end of the wrench and a recess is defined in the inner periphery of the reception hole. A ratchet wheel is rotatably located in the reception hole. A pawl, a restriction member and a resilient member are received in the recess. The two ends of the resilient member respectively contact the pawl and the restriction member to bias the pawl to be engaged with the ratchet wheel. A restriction ring is located in the reception hole and has a rod extending therefrom, the rod extends into the recess. The restriction member is located between the rod and the inner periphery of the recess.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 28, 2015
    Inventors: Tsan-Chang Lee, Yueh-Li Wang
  • Publication number: 20150107422
    Abstract: A ratchet screwdriver includes a ratchet wheel; a pawl base assembly, for inserting into the ratchet wheel, and a plurality of pawl pieces for engaging with teeth, the rear end of the pawl base assembly connecting to a handle of a screwdriver while the front end connecting to a head of the screwdriver; a rings assembly adjustably mounted on the ratchet wheel; the pawl base assembly includes a center rod and a pedestal, the rear part of the center rod is provided with a first positioning slot, the center rod passes through the center hole of the pedestal, the center rod is clamped at the first positioning slot by a first clamping member. Compared with the prior art, the overall structure is more rational and practical, and is safer and more reliable in use, and is capable of loosening or tighten a screw quickly.
    Type: Application
    Filed: April 22, 2014
    Publication date: April 23, 2015
    Inventor: Yongguang Li
  • Patent number: 9010220
    Abstract: A pass-thru ratchet wrench includes a wrench body. A front end of the wrench body has a head portion. A ratchet is provided in the head portion. The ratchet has a receiving hole to receive a socket. The ratchet has a first neck portion at an upper edge thereof and an annular groove around the outer wall of the first neck portion. The annular groove has a certain depth. The ratchet has a plurality of through holes in annular groove. A C-shaped buckle ring is disposed in the annular groove. The C-shaped buckle ring extends out of the through holes to form a limit portion. The limit portion is adapted to stop the socket, thereby the receiving hole of the ratchet can limit the socket from displacing.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: April 21, 2015
    Inventor: Chia-Yu Chen
  • Publication number: 20150101948
    Abstract: A tool repair system that aids in the repair of malfunctioned inner tool components. The system includes a package having a fully assembled component disposed on top of a component locating structure and held in place by one or more retainers. After removing the malfunctioned component, the tool can be lowered onto the component locating structure, thereby pushing the retainers off the fully assembled component and coupling the fully assembled component to the tool via an opening in the tool. Repairing the tool is therefore quick, easy, and does not require extensive knowledge of the inner workings of the tool.
    Type: Application
    Filed: September 17, 2014
    Publication date: April 16, 2015
    Inventors: Brent J. Grinwald, Frank J. Beno
  • Patent number: 8997609
    Abstract: A wrench including a handle having a first yoke at a first end and a first plurality of tool heads coupled to the first yoke at a first pivot axis, at least a first tool head of the first plurality of tool heads having a drive cavity. Each tool head of the first plurality of tool heads is pivotable about the first pivot axis independently of the other tool heads of the first plurality of tool heads.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: April 7, 2015
    Assignee: Apex Brands, Inc.
    Inventors: Christopher Lance, Tim McKenzie
  • Publication number: 20150082949
    Abstract: An open-ended ratchet wrench having interchangeable jaws and selectable free rotation of the jaws.
    Type: Application
    Filed: April 29, 2013
    Publication date: March 26, 2015
    Inventor: Jeffrey Dean MACDONALD
  • Publication number: 20150075332
    Abstract: A pass-thru ratchet wrench includes a wrench body. A front end of the wrench body has a head portion. A ratchet is provided in the head portion. The ratchet has a receiving hole to receive a socket. The ratchet has a first neck portion at an upper edge thereof and an annular groove around the outer wall of the first neck portion. The annular groove has a certain depth. The ratchet has a plurality of through holes in annular groove. A C-shaped buckle ring is disposed in the annular groove. The C-shaped buckle ring extends out of the through holes to form a limit portion. The limit portion is adapted to stop the socket, thereby the receiving hole of the ratchet can limit the socket from displacing.
    Type: Application
    Filed: May 28, 2014
    Publication date: March 19, 2015
    Inventor: Chia-Yu CHEN
  • Patent number: 8973469
    Abstract: A ratchet wrench mainly includes a main body installed with a driving gear and a driven gear respectively having teeth formed spirally and engaged with each other. A confining chamber in the main body has an inner wall formed with ratchet teeth able to restrictively lock with ratchet teeth formed on the teeth of the driven gear. An interactive member is installed in an insert hole of the driven gear, with one end connected with the orientating member and another end positioned on the cover. A pressing piece is fixed on the interactive member, confined in the insert hole of the driven gear. A spring is located between the pressing piece and the driven gear. By switching the orientating member, the driving gear can easily change rotating direction, with a strong locking effect.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: March 10, 2015
    Inventor: Yueh-Ying Yang
  • Patent number: 8967595
    Abstract: An adapter for coupling a lever to continuously unidirectionally drive a strap fastener is disclosed. The adapter includes a U-shaped frame with two free ends and a junction. The two free ends are separately provided with two shaft holes. Two sliding slots are separately formed near the shaft holes. A lever hole is formed at the junction. A ratchet shaft has an outer section with a radial hole and an inner section inserted in the shaft holes. A bolt is inserted into the radial hole. A ratchet is mounted around the ratchet shaft. A pawl is slidably disposed between the two sliding slots for engaging with the ratchet. A spring stopper is fixed between two sides of the frame. A spring is compressively arranged between the pawl and spring stopper. A holed plate is fixed between the spring stopper and the junction.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: March 3, 2015
    Assignee: Strong Yun Industrial Co., Ltd.
    Inventor: Yeh-Chien Chou
  • Patent number: 8955416
    Abstract: A hand tool for holding a plurality of wrench head tools on the end of a handle, comprising a handle with a handle hinge paw and at least two pivotal wrench head tools pivotally mounted to the handle hinge paw, at least one pivotal wrench head tool defining a second hinge paw and at least one pivotal wrench head tool defining a pivotal arm post. Wherein the pivotal arm post is pivotally mounted within the second hinge paw which is pivotally mounted within the handle hinge paw. The wrench handle may also comprise a folding hinge to allow both a smaller stowed position and a larger unfold or extended operational position for the hand tool. The handle may also comprise a central hub and/or further include additional non-wrench tools. The hand tool may also comprise a hinge locking mechanism for each folding and/or pivotal hinge.
    Type: Grant
    Filed: March 30, 2014
    Date of Patent: February 17, 2015
    Inventor: Gary Dean Ragner
  • Patent number: 8950294
    Abstract: A ratchet wrench applicable to multi-size workpieces comprises: a wrench with a handle and a head wherein the head has a hollow handle hole in which there are two neighboring surfaces along its inner edge, a first support surface and a second support surface, and an accommodating space embedded into the handle; a support portion with a ratchet part and a resilient member wherein the ratchet part allows one end to be pivoted in the accommodating space and is provided with an arc-convex portion, which is within the hollow handle hole for a first working space developed inside, and the resilient member always exerts a resilient resistance on the ratchet part. As such, the ratchet wrench depends on a simple mechanism and is applicable to continuous screw operation of various screw fastening elements for excellent convenience and swiftness.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: February 10, 2015
    Inventor: Yeo-Ming Wang
  • Patent number: 8943929
    Abstract: A ratchet wrench includes a head and a handle. The head is assembled with a switch member and an active mechanism which provides a ratchet function. The switch member is switched to selectively engage the active mechanism, so that the active mechanism may be fixed or be rotatable to achieve the ratchet function. Therefore, the wrench is provided with the function of ratchet which makes the wrench easy to use and with the function of fixing which makes the structure strength of the wrench strengthened. Conveniency of using wrench is improved.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: February 3, 2015
    Inventors: Yu-Hua Ou, Chih-Chi Chen
  • Patent number: 8943928
    Abstract: This invention relates to a wrench, especially a ratchet wheel wrench. The ratchet wheel wrench includes a wrench head on which a ratchet wheel groove and a crescent groove communicating the ratchet wheel groove are attached, a ratchet wheel is disposed in the ratchet wheel groove, a ratchet tooth support is disposed at one side of in the crescent groove, a spring is disposed at one end of the ratchet tooth support; a reed is disposed at the side in the crescent groove opposite the ratchet tooth support, one end of the reed is mounted in the crescent groove along the inner wall of the crescent groove, a protuberance is disposed at the other side of the reed, the protuberance is disposed in the spring.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: February 3, 2015
    Assignee: Zhejiang Yiyang Tool Manufacture Co., Ltd.
    Inventor: Li Feng
  • Publication number: 20150027277
    Abstract: A ratchet (1) is provided, in particular a ratchet for surgical interventions or a dental ratchet, wherein the ratchet has a handle (2) and a pivot housing (4) arranged thereon, said pivot housing being a flat spiral (6). The spiral (6) is flexible and can be actuated such that the spiral (6) coils up in a plane that is oriented substantially vertically to the pivot axis D. The invention also relates to a torque transmission system which comprises a ratchet (1) and an implant driver. The implant driver has a first portion that is cylindrical and a second portion that is cylindrical or frustoconical, the second portion additionally having a receptacle for a medical tool, a surgical implant or any other object. In this way, an improved ratchet is obtained with which the torque to be applied can be applied to the implant driver in a metered manner.
    Type: Application
    Filed: January 14, 2013
    Publication date: January 29, 2015
    Inventor: Markus Waizenegger
  • Publication number: 20150013503
    Abstract: A ratcheting tool including a handle formed with an integral yoke at a first end and a tool head coupled to the yoke at a pivot. The tool head has a toothed hub facing rearwardly of the pivot and into the yoke. A locking spool is rotatably carried in the yoke adjacent the toothed hub. The locking spool has a first face, a second face, and a first tooth extending along both the first face and the second face and engaging the toothed hub. The locking spool is rotatable between a first position in which the first face is adjacent the toothed hub, thereby locking the tool head in a selected angular position with respect to the handle, and a second position in which the second face is adjacent the toothed hub such that the tool head is pivotable about the pivot.
    Type: Application
    Filed: April 14, 2014
    Publication date: January 15, 2015
    Applicant: APEX BRANDS, INC.
    Inventors: Pei Yang Lee, Antonio De La Torre
  • Publication number: 20140366690
    Abstract: A pawl structure of ratchet wrenches has multiple engaging teeth, a first recess and a second recess. The engaging teeth include first teeth at the mediate portion and second teeth are respectively located at two ends of the engaging teeth. The tips of the first teeth are located on a first curve which has a center and a central line extends through the center and intersects the first curve. The tips of the second teeth are located on a second curve which gradually leaves from the center of the first curve along with the second curve extending away from the central line. The first recess is located corresponding to the central line and the first teeth. The second recess is located corresponding to the second teeth.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventors: Tsan-Chang Lee, Yueh-Li Wang
  • Patent number: 8893588
    Abstract: A ratchet wrench includes a driving head, two retaining rings engaged in the driving head, a driving member rotatably engaged in the driving head and having a gear, and a pawl engaged in the driving head and having a lever arm extended from a shaft, and one or more teeth formed on the lever arm for engaging with the gear and for determining the driving direction of the driving member by the driving head and the handle, 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 gear.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: November 25, 2014
    Inventor: Yu Yen Chien
  • Patent number: 8893590
    Abstract: A ratchet wrench adjustable in clamping size is provided with a body, a ratchet wheel, an adjustment member, two engaging members and a spring. The body includes a head portion, a handle and a switch member. The two engaging members are oppositely located on the ratchet wheel and the adjustment member and each include an engaging portion, a neck portion connected to the engaging portion and located in the ratchet wheel, and an upper portion connected to the neck portion and located in the adjustment cavity of the adjustment member. By such arrangements, rotating the rotating portion of the adjustment member adjusts relative positions of the upper portions of the two engaging members in the adjustment cavity of the adjustment member, and makes the neck portions of the engaging members to move along the guide slot so as to change a distance between the two engaging portions.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: November 25, 2014
    Assignee: Infar Industrial Co., Ltd.
    Inventor: Ander Chen
  • Publication number: 20140331823
    Abstract: A ratcheting tool and a method of using the same, the ratcheting tool being formed by a handle, a substantially perpendicular cylinder and a ratcheting mechanism. The cylinder is adapted to be positioned over a nut or bolt head and comprises jaws adapted to engage the nut or bolt head when pushed laterally theretowards. When the arm is squeezed with the handle, a slider block is pushed towards the nut or bolt head causing the jaws to laterally engage the nut or bolt head. The ratcheting mechanism is between the cylinder and the jaws and allows torque to be applied to the nut or bolt head in a desired direction when the handle is moved in a circular motion around the main axis of the cylinder. The jaws are allowed to rotate within the cylinder in a direction opposite to the desired direction.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 13, 2014
    Inventor: Horatiu Daniel CHIRIAC
  • Publication number: 20140311301
    Abstract: The present invention relates to a tool having dual flex heads. The tool may have a flex head having a ratchet head and a flex head having a bit driver head. The flex heads may include a locking mechanism.
    Type: Application
    Filed: April 18, 2014
    Publication date: October 23, 2014
    Inventor: Luke R. TUCKER
  • Patent number: 8857296
    Abstract: In a ratchet wrench body and its manufacturing method, the body comprises a handle and a head, and the head has a through hole, a control compartment, and a slot chamber. The head has a first surface and a second surface, and at least one embedded hole formed between the slot chamber and the first and second surfaces, and each embedded hole is penetrated through one side but not penetrated through the other side, and each embedded hole is smaller than an elastic element and a propping element contained in the slot chamber, and the slot chamber is extended from each embedded hole inwardly towards the slot chamber and formed by the total volume occupied by adjacent intersected surfaces.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: October 14, 2014
    Inventor: Ping-Chung Huang
  • Patent number: 8857297
    Abstract: A manufacturing method of an elastic C-shaped steel block is described, which includes the following steps. An ordinary steel is cut into a round steel tube. The round steel tube is processed into a ratchet hex socket steel tube. The ratchet hex socket steel tube is cut into a ratchet hex socket block. The ratchet hex socket block is transformed into an elastic ratchet hex socket block by a thermal treatment. An opening is formed in the elastic ratchet hex socket block to change the elastic ratchet hex socket block into a C-shaped elastic steel block.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: October 14, 2014
    Assignee: Kabo Tool Company
    Inventor: Chih-Ching Hsieh
  • Publication number: 20140298957
    Abstract: A hand wrench comprising a center handle (251) with two ratchet wrench heads (270 and 280) pivotally connected at each end of the center handle, with each ratchet wrench designed for attachment of a multi-size drive socket, wherein each ratchet heads have at last three functional position where each ratchet head comprises a stowed position where the ratchet and drive socket are in a stowed position where the user can place the wrench in their pocket, an operational position where the ratchet and drive socket are used as a ratchet and drive socket, and a handle position where the ratchet and drive socket operate as a handle.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 9, 2014
    Inventor: Gary Dean Ragner
  • Publication number: 20140290441
    Abstract: The present invention relates to a one-way freewheel clutch type wrench, more specifically to an indicator mechanism for providing audible and/or tactile feedback when a one-way freewheel clutch wrench rotated in the unrestricted, or “reloading”, direction. The indicator mechanism has a ratchet wheel with teeth attached to a one-way freewheel clutch socket which. interacts with at least one indicator located in a pocket of the box-end of the wrench.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: A&E Incorporated
    Inventors: Jonathan L. Ludtke, Timothy Alho
  • Patent number: 8844381
    Abstract: A torque wrench comprises a handle, a wrench head having a ratcheting workpiece engaging portion, and a tensor beam defining a longitudinal axis and having a rectangular cross-section perpendicular to the longitudinal axis. A first strain gauge is coupled to one side of the tensor beam, and a second strain gauge is coupled to another side orthogonal to the one side. A processor coupled to the first and second strain gauges converts an output signal from one of the strain gauges into an equivalent torque value. The tensor beam is intermediate the handle and the wrench head and is rotatably coupled to the wrench head and is rotatable, with respect to the tensor beam, between a first position in which the processor processes an output signal from the first strain gauge and a second position in which the processor processes an output signal from the second strain gauge assembly.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: September 30, 2014
    Assignee: Apex Brands, Inc.
    Inventor: Awad Aly Gharib
  • Publication number: 20140260817
    Abstract: A tool, a tool system, and method for applying torque to a hammer union. The tool includes a handle attached to a tool head, and the tool head further includes at least two indentations, the indentations having a curved rearward wall and forming a mouth with a first width and a mid-section with a second width, wherein the mid-section width is greater than the mouth width.
    Type: Application
    Filed: May 28, 2014
    Publication date: September 18, 2014
    Applicant: Concentric Pipe and Tool Rentals, LLC
    Inventors: David Wilson, Chris Murray
  • Publication number: 20140251090
    Abstract: A universal ratcheting tool provides improved handling of tools that are difficult to use on their own, specifically, hexagonal wrenches. The universal ratcheting tool includes a handle and a body with a ratcheting mechanism within the handle. The body includes a first aperture for receiving a tool, and the first aperture includes slots to accept a plurality of sizes of tools. The body also includes a second aperture where the tool extends out of the body. A retaining component is coupled with the body to retain the tool and a retaining tab is able to be used to open and close the retaining component. Once the tool is positioned and retained within the universal ratcheting tool, a user is able to easily install or remove an object such as a screw with the benefit of a comfortable handle and the ease of use of the ratcheting mechanism.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: Wagic Inc.
    Inventors: Ronald L. Johnson, Robert J. Gallegos, Steven Simas Escobar, Anders Scot Hudson, Idriss Mansouri-Chafik Ruiz, Yugen Patrick Lockhart, Howard Allen Wilson, Eric M. Colton
  • Patent number: 8820195
    Abstract: 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.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: September 2, 2014
    Assignee: Stanley Black & Decker, Inc.
    Inventors: Thomas Pelletier, Daniel Chang
  • Publication number: 20140216211
    Abstract: A ratchet includes multiple ratchet teeth defined in the outer periphery thereof and a coated layer is coated along the outer periphery of the ratchet. A sand blasting device is used to blast sands to remove a part of the coated layer to define a circular endless opening on the coated layer, and the ratchet teeth protrude the coated layer from the openings.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 7, 2014
    Inventor: Cheng-Pu Yang