Reversing Patents (Class 81/63.1)
  • Patent number: 10864616
    Abstract: A tool that includes a wrench body a first drive end, and a ratchet gear disposed in an aperture in the first drive end. A first cavity is formed in the first drive end and in communication with the aperture. First and second pawls are disposed in the first cavity, and the first and second pawls each includes teeth adapted to engage the ratchet gear. A second cavity is formed in the first drive end and is in communication with the first cavity. The second cavity receives a reversing disc adapted to selectively engage the first and second pawls to cause engagement and dis-engagement of the first and second pawls with the ratchet gear. By orienting the pawls to allow the second cavity to have a minimum depth, the head of the wrench can be stiffened, thereby increasing fatigue strength and rigidity of the wrench.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: December 15, 2020
    Assignee: Snap-on Incorporated
    Inventors: Christopher D Thompson, Daniel M Eggert, David T Ross
  • Patent number: 10828751
    Abstract: A screwdriver having a changeable direction freewheel lock, having a drive output member that is mounted so as to be rotatable about an axis in a bearing eye of a drive input member and has a circumferential toothing and a drive-output profile portion, and locking members that are inserted in a pocket of the drive input member and each have a locking toothing for engaging with the circumferential toothing in a manner preventing rotation. What is essential is that the locking members are two bodies that are movable relative to one another, can be displaced in an articulated manner with respect to one another and each have a switching extension which project into the same switching recess of a switching member.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: November 10, 2020
    Assignee: Wera Werkzeuge GmbH
    Inventors: Michael Abel, Ralf-Richard Richter
  • Patent number: 10710219
    Abstract: A mechanism that is non-engaging in the forward direction and prevents direction change, comprising a dual ratchet sleeve (1). The dual ratchet sleeve is provided in the axial direction a one-way forward ratchet ring gear and a one-way reverse ratchet ring gear; a pawl base (2), the pawl base being provided with a first pawl (21) and a second pawl (22) capable of moving in a direction perpendicular to the axis of the dual ratchet sleeve; an eccentric drive mechanism (3) for driving the first and second pawl to act, the axis of the eccentric wheel axle (32) of the eccentric drive mechanism being perpendicular to the axis of the dual ratchet sleeve; a tool handle (4) for driving the pawl base to rotate, the tool handle being connected to and fixed on the eccentric wheel (31) or the eccentric wheel axle (32) of the eccentric drive mechanism so as to enable the linkage of the tool handle and the eccentric wheel.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: July 14, 2020
    Assignee: Nantong Tianmao Machinery Manufacturing Co., Ltd.
    Inventor: Bubin Jiang
  • Patent number: 9815179
    Abstract: A ratcheting tool includes a head and a handle, and a gear ring disposed in the head defining a first plurality of teeth defining a first arc having a first radius. A first pawl is disposed in the head and defines a front face, a rearward face, and a second plurality of teeth which defines a second arc having a second radius. A second pawl is disposed in the head and defines a front face, a rearward face, and a third plurality of teeth which defines a third arc having a third radius. When the first pawl and the second pawl are disposed with their rearward faces in vertical alignment and their longitudinal center axes are disposed in a common plane, the second arc of the first pawl is offset from the third arc of the second pawl in a direction parallel to the longitudinal center axes.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: November 14, 2017
    Assignee: APEX BRANDS, INC.
    Inventors: Alan D. Anderson, Yongsheng Xu
  • Patent number: 9709141
    Abstract: A pawl mechanism that reduces the possibility of pawl spring over-compression and damage. The invention can include bumpers disposed near the internal surfaces of the pawls and can space the internal surfaces when the pawls contact one another to reduce the amount of compression applied to the pawl spring. The pawl spring can be inserted into respective cavities on the pawls to further prevent additional compression of and damage to the pawl spring.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: July 18, 2017
    Assignee: Snap-on Incorporated
    Inventors: Christopher Thompson, Daniel Eggert
  • Patent number: 9457456
    Abstract: A ratchet wrench includes a wrench body and a ratchet assembly disposed in the wrench body. The ratchet assembly includes a ratchet wheel, a Y-shaped bar, two pawls, a pawl spring and a switch member. The Y-shaped bar has a pair of prongs splayed laterally apart. Each of the pawls is engageable with the ratchet wheel and defines a bore in a lower corner thereof for reception of the respective prong of the Y-shaped bar. The pawl spring is disposed between the pawls. The switch member is partly positioned on an exterior of the wrench body, and operable to drive the Y-shaped bar to direct either one of the pawls to engage with the ratchet wheel.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: October 4, 2016
    Inventor: Yi-Fu Chen
  • Patent number: 9233456
    Abstract: 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.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: January 12, 2016
    Inventor: Hui-Ling Chang
  • Patent number: 9162348
    Abstract: A steering and positioning structure of a ratchet screwdriver has a main body, ratchet assembly, radial holding tank, two upper snapping blocks in multi-tooth meshed pattern and two downward abutting pieces, as well as an elastic abutting member, revolving drum and revolving drum split positioning member. The upper snapping blocks are activated in tune with the downward abutting pieces, such that the upper snapping blocks can be formed by means of powder metallurgy and demolding. Multiple snapping teeth could be formed on the snapping blocks. As the snapping teeth can mated with the ratchets of the ratchet assembly in multi-tooth meshing pattern, the structure can meet the multi-tooth meshing structural demands for convenient forming, and also improve substantially the torsion of the ratchet screwdriver, enhance the ease-of-operation and mass production for higher economic benefits.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: October 20, 2015
    Inventor: Shih-Chi Ho
  • Patent number: 9138875
    Abstract: A ratchet tool device includes a wrench body, a receiving hole and a receiving space opened at a top end of the wrench body, the receiving space axially opened from an inner wall of the receiving hole toward a bottom end of the wrench body, the receiving space communicating with the receiving hole, a ratchet wheel received in the receiving hole, a pawl set having a first pawl, a second pawl and an abutting elastomer, a switching set having a switching member and a positioning member, the switching member assembled to the wrench body and sealing the receiving space, the switching member having a driving block, the first pawl and the second pawl both assembled to the driving block.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: September 22, 2015
    Inventor: Yi-Fu Chen
  • Patent number: 9114511
    Abstract: A ratchet connector may include a first body, a ratchet, a control ring and a second body. The first body has a cylinder at one end and a semi-circular trough formed at an outer surface of the cylinder and a through hole at the semi-circular trough. The ratchet has a teeth portion on both sides of an arc surface thereof, a sliding surface formed between two teeth portions, a shaft rod configured to be insert into the through hole to enable the ratchet to be pivotally disposed in the semi-circular trough. The control ring having a fixed trough and a switching trough and the control ring disposed onto the cylinder of the first body to enable the switching trough to be disposed against the ball; and the second body having a receiving space and a ring teeth portion is formed inside the receiving space.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: August 25, 2015
    Assignee: Lichten Tools Corporation
    Inventor: Chien-Kang Wang
  • Patent number: 9079299
    Abstract: A switching device of a ratchet wrench includes two engaging members respectively mounted to two rods of an operation member. The operation member has a polygonal shank which extends through the board of the head of the wrench and is connected with a switch. The operation member swings by pivoting the switch so as to control the either of the two engaging members to be engaged with the ratchet driving member. The operation member has a positioning tube, and a bead and a spring are located in the positioning tube. The bead is engaged with one of two recesses of a cover fixed to the head of the wrench when the operation member is pivoted. The cover has a flange on which a locking member is pressed. The locking member is engaged with a fixing portion in the inner periphery of the space.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: July 14, 2015
    Inventors: Kuo-Hsien Wu, Kuan-Jen Hsieh, David Lee
  • Patent number: 9067308
    Abstract: A ratchet wrench comprises a body, a ratchet, a first pawl, and a second pawl. Each of the first pawl and the second pawl can move between a first position and a second position relative to the ratchet. The first position is a position where the ratchet wrench can transmit torque to said driven element from respective first pawl or second pawl, and the second position is a position where no torque is transmitted from respective first pawl or second pawl. A control member can pivot or rotate to stay in one of a first position, a second position, and a neutral position for different operations. The body has an operating part comprising a groove. The groove comprises two accommodation chambers having inclined surfaces and can accommodate the first pawl and the second pawl.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: June 30, 2015
    Assignee: Apex Tool (HK) Limited Taiwan Branch
    Inventor: Yu-Ching Lai
  • Patent number: 9038508
    Abstract: A ratcheting device includes a handle member including a first end and an opposed second end, a ratchet head pivotably connected to the first end of the handle member, and a ring grip pivotably connected to the second end of the handle member.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: May 26, 2015
    Inventor: Stephen W. Hodges
  • Patent number: 9038507
    Abstract: 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.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: May 26, 2015
    Assignee: Snap-on Incorporated
    Inventors: Christopher Thompson, Michael Foster
  • Patent number: 9032845
    Abstract: 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.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: May 19, 2015
    Inventor: Li-Ching Lin
  • 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
  • Patent number: 8978521
    Abstract: A torque transmittal tool has an input socket to receive a drive input from a drive tool. The input socket causes a first link to rotate through a range of rotation upon rotation of the input socket. The first link is fixed to rotate with an extension link. The extension link is fixed to rotate with an output link. The output link includes an output ratchet for transmitting rotation, and has a torque reversal button which may be actuated to change the direction of rotation of the output ratchet. An actuator has an unactuated position where a contact surface is spaced away from the torque reversal button, and an actuated position at which it actuates the torque reversal button. A method is also disclosed.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: March 17, 2015
    Assignee: United Technologies Corporation
    Inventor: Bruce H. Layton
  • Patent number: 8973476
    Abstract: A new ratchet wrench has a slide gear that is laterally enclosed within the head. Shoulders on the slide gear are curved and outwardly flanked by a single recess. The distance from the top of the shoulder to the base of the recess is no more than half the difference between the outside diameter and the root diameter of the teeth on the ratchet. Those teeth have essentially planar faces, top lands that traverse at least one quarter of the pitch, and bottom lands that extend continuously from the faces, have essentially constant radius, and traverse at least one quarter of the pitch. A pin projects out the back and enables a user to shift the wrench between clockwise and counterclockwise ratcheting. All cavities for the ratcheting assembly are recessed from the face in an arrangement that can be machined in a single set-up on a computer-controlled vertical mill.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 10, 2015
    Inventors: John Reynertson, Jr., Vladimir Kunin
  • Publication number: 20150059533
    Abstract: 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.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventor: Ping-Wen Huang
  • Publication number: 20150059534
    Abstract: A ratchet screwdriver includes a handle receiving a rod coupled with a coupling sleeve. A spring is received in each of two recesses of the coupling sleeve and presses against one of two pawls abutting against abutment faces of the recesses. An output member has a ratchet portion mounted around the coupling sleeve and having ratchet teeth. The output device further includes an output portion for coupling with a bit. Each spring biases one of the pawls to engage with the ratchet teeth. A switch ring is mounted around the ratchet portion. The switch ring includes a pressing portion selectively pressing against and selectively disengaging one of the pawls from the ratchet teeth when the switch ring is rotated relative to the coupling sleeve to selectively engage a positioning device with one of positioning grooves in the switch ring to adjust a torque output direction of the coupling sleeve.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Inventor: Tzu-Chien WANG
  • Publication number: 20150047474
    Abstract: A screw tool having a gear head, which has a freewheel gear, having an output shaft, which is inserted in a non-rotatable but displaceable manner in an output opening and can be moved to and fro between a right-hand screw position and a left-hand screw position in each case by use of axial displacement, wherein in each case a different end section of the output shaft projects out of the gear head, having at least one locking mechanism to secure the position of the output shaft in the respective screw position and/or around a screw output element on the output shaft. As a development which is advantageous for use, the at least one locking mechanism can be moved from a locking position to a release position by pressure on an actuation element arranged on the end face of the output shaft.
    Type: Application
    Filed: October 30, 2014
    Publication date: February 19, 2015
    Inventor: Michael Abel
  • Publication number: 20150047472
    Abstract: The invention is a dual-drive, self-ratcheting multiple input ports mechanism, that converts oscillatory motion applied to its input, to unidirectional axial rotation motion at its output and is able to be switched to produce solely clockwise rotation at its output, regardless of the direction of rotation applied to the input and is able to be switched to produce solely counterclockwise rotation at its output, regardless of the direction of rotation applied to the input and is provided with a detachable input handle, that can be coupled to said multiple input ports.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 19, 2015
    Inventor: Leon Robert Palmer
  • Publication number: 20150047473
    Abstract: Disclosed is a gas cylinder ratchet driver tool that is specifically suited for opening and closing valve posts of gas cylinders. The tool comprises an outer handle body for one-handed use and an external ratchet switching actuator. Within the handle body is an internal housing that supports a rotatable socket therein. The socket comprises an elongated length with a lower working end adapted to engage a gas cylinder valve post and a ratchet gear upper end. A first and second wedge plate supported by the housing and acted upon by the actuator controls the ratchet direction by bearing against the ratchet gear, determining ratchet direction or ratchet lock. A flat spring beneath the actuator manipulates the wedge plates against the ratchet gear to control the ratchet direction. The socket working end comprises two flat portions to facilitate placement of the socket onto a gas cylinder valve post in emergency situations.
    Type: Application
    Filed: June 19, 2014
    Publication date: February 19, 2015
    Inventor: Lawrence Ryans
  • 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: 8931374
    Abstract: A socket wrench includes a handle including a pivotal head including a cylindrical, eccentric recess on a bottom, a cylindrical cavity in a blind end of the eccentric recess, a perimetric opening proximate to the eccentric recess, and a spring depressible detent; a socket drive including a lower projection, upper external ratchet teeth, an annular groove, and an intermediate flange; a hollow drive gear including a circular opening on a bottom, first, second and third posts, first, second and third positioning wells; first and second pawls; and a biasing member disposed and biased between the first pawl and the second pawl.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: January 13, 2015
    Inventor: Kuo Lung Chen
  • Patent number: 8931375
    Abstract: A ratchet device includes a body, a ratchet wheel unit, and a switching unit. The body has an outer peripheral surface, at least one slide slot formed in the outer peripheral surface, at least one first groove, and at least one second groove. The ratchet wheel unit includes a ratchet wheel sleeved on the body, at least one first pawl member inserted into the first groove, at least one second pawl member inserted into the second groove, and resilient members biasing the first and second pawl members to engage the ratchet wheel. The switching unit is sleeved on the body, and includes a pushing member disposed in the slide slot, and a switching member connected to the pushing member. Through operation of the switching member, the first or second pawl member can be separated from the ratchet wheel.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: January 13, 2015
    Inventor: Chin-Tan Huang
  • Publication number: 20150000473
    Abstract: The bidirectional wrench of the present disclosure achieves two working modes and can convert between them conveniently. During use of the bidirectional wrench of the present disclosure, the input torque that the operator exerts is a clockwise torque or a counterclockwise torque, the output torque of the output end of the bidirectional wrench of the present disclosure is a clockwise torque or a counterclockwise torque, alternatively.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 1, 2015
    Applicants: HANGZHOU GREAT STAR TOOLS CO., LTD, HANGZHOU GREAT STAR INDUSTRIAL CO., LTD
    Inventor: Min WANG
  • Publication number: 20150000474
    Abstract: The thickness of the thin bidirectional ratchet wrench of the present disclosure is preferably less than or equal to 30.0 mm, it can be used in narrow spaces easily, achieves two working modes, and can convert between them conveniently and stably. During use of the thin bidirectional ratchet wrench of the present disclosure, the input torque that the operator exerts is a clockwise torque or a counterclockwise torque, the output torque of the output end of the thin bidirectional ratchet wrench of the present disclosure is a clockwise torque or a counterclockwise torque, alternatively.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 1, 2015
    Applicants: HANGZHOU GREAT STAR INDUSTRIAL CO., LTD, HANGZHOU GREAT STAR TOOLS CO., LTD
    Inventor: Min WANG
  • Publication number: 20140352499
    Abstract: A socket wrench includes a handle including a pivotal head including a cylindrical, eccentric recess on a bottom, a cylindrical cavity in a blind end of the eccentric recess, a perimetric opening proximate to the eccentric recess, and a spring depressible detent; a socket drive including a lower projection, upper external ratchet teeth, an annular groove, and an intermediate flange; a hollow drive gear including a circular opening on a bottom, first, second and third posts, first, second and third positioning wells; first and second pawls; and a biasing member disposed and biased between the first pawl and the second pawl.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Inventor: Kuo Lung Chen
  • 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
  • Patent number: 8893589
    Abstract: 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.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: November 25, 2014
    Inventor: Ivan Kibby
  • 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: 20140318325
    Abstract: The structure of a ratchet wrench has a ratchet and a brake wheel that engage with each other, and a redirecting mechanism which switchs the rotating direction of the ratchet. The redirecting mechanism has a transmission axle pivotally installed inside the brake wheel. The transmission axle has a pushing assembly for pushing the brake wheel to deviate. The pushing assembly changes its pushing direction as the transmission axle rotates, thereby changing the rotatable direction of the ratchet.
    Type: Application
    Filed: April 24, 2013
    Publication date: October 30, 2014
    Inventor: Cheng-Kun CHEN
  • Publication number: 20140310882
    Abstract: According to one aspect, there is provided a bit tool having a bit storage member for housing a plurality of bits. The member includes an exterior which is at least partially transparent. A light assembly extends around the bit storage member and selectively illuminates the bit storage member to reveal the bits. According to another aspect, the tool has a pushrod for operatively selecting bits and a locking assembly that may be actuated for selectively coupling the pushrod and a respective one of the bits together to operate the tool. According to a further aspect, there is provided a ratcheting handle assembly which includes at least one catch member operatively connected to and linearly moveable relative to an inner core. A selector member actuates respective ones of the catch members for selectively causing the handle assembly to ratchetly drive the inner core in forward and reverse positions.
    Type: Application
    Filed: February 28, 2014
    Publication date: October 23, 2014
    Applicant: Sicom Industries Ltd.
    Inventor: Mark F. Reynolds
  • 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
  • Publication number: 20140311300
    Abstract: A ratchet tool device includes a wrench body, a receiving hole and a receiving space opened at a top end of the wrench body, the receiving space axially opened from an inner wall of the receiving hole toward a bottom end of the wrench body, the receiving space communicating with the receiving hole, a ratchet wheel received in the receiving hole, a pawl set having a first pawl, a second pawl and an abutting elastomer, a switching set having a switching member and a positioning member, the switching member assembled to the wrench body and sealing the receiving space, the switching member having a driving block, the first pawl and the second pawl both assembled to the driving block.
    Type: Application
    Filed: April 23, 2013
    Publication date: October 23, 2014
    Inventor: Yi-Fu Chen
  • Publication number: 20140283654
    Abstract: A ratchet device includes a body, a ratchet wheel unit, and a switching unit. The body has an outer peripheral surface, at least one slide slot formed in the outer peripheral surface, at least one first groove, and at least one second groove. The ratchet wheel unit includes a ratchet wheel sleeved on the body, at least one first pawl member inserted into the first groove, at least one second pawl member inserted into the second groove, and resilient members biasing the first and second pawl members to engage the ratchet wheel. The switching unit is sleeved on the body, and includes a pushing member disposed in the slide slot, and a switching member connected to the pushing member. Through operation of the switching member, the first or second pawl member can be separated from the ratchet wheel.
    Type: Application
    Filed: July 9, 2013
    Publication date: September 25, 2014
    Inventor: Chin-Tan Huang
  • Publication number: 20140260836
    Abstract: A new ratchet wrench has a slide gear that is laterally enclosed within the head. Shoulders on the slide gear are curved and outwardly flanked by a single recess. The distance from the top of the shoulder to the base of the recess is no more than half the difference between the outside diameter and the root diameter of the teeth on the ratchet. Those teeth have essentially planar faces, top lands that traverse at least one quarter of the pitch, and bottom lands that extend continuously from the faces, have essentially constant radius, and traverse at least one quarter of the pitch. A pin projects out the back and enables a user to shift the wrench between clockwise and counterclockwise ratcheting. All cavities for the ratcheting assembly are recessed from the face in an arrangement that can be machined in a single set-up on a computer-controlled vertical mill.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: RYESON CORPORATION
    Inventors: John Reynertson, JR., Vladimir Kunin
  • Publication number: 20140260819
    Abstract: A ratchet mechanism contains a chamber defined by at least one gear surface, a rotating member positioned at least partially within the chamber, a gear member positioned at least partially within the chamber, and a stop member engaging the rotating member, such that the rotating member and the stop member rotate in unison. A movable pin engages and rotatably connects the rotating member and the gear member, and the pin is movable to disengage the pin from the rotating member and permit the rotating member to be shifted between different drive configurations. The gear member has a plurality of gear teeth around its outer periphery. At least a portion of the gear teeth engage the gear surface. The gear member can rotate freely in one rotational direction, and the stop member abuts the gear member to prevent rotation of the gear member in an opposed rotational direction.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventor: Stephen A. Gummow
  • Patent number: 8833208
    Abstract: 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.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: September 16, 2014
    Assignee: Apex Brands, Inc.
    Inventors: Robert L. Arnold, Richard P. Folkenroth
  • 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
  • Publication number: 20140251089
    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: Application
    Filed: March 9, 2013
    Publication date: September 11, 2014
    Applicant: Infar Industrial Co., Ltd.
    Inventor: Ander CHEN
  • Patent number: 8806987
    Abstract: A steering device for a ratchet screwdriver includes a base. The base has a receiving hole defined therein. Two receiving grooves are defined in the base. A moving slot is comparted from receiving hole. A ratchet rod is partially received in the base. The ratchet rod includes a spindle and a ratchet wheel disposed on the spindle. Two blockers are respectively received in the two receiving grooves. Each blocker has unidirectional teeth formed on one end thereof for selectively engaging with the ratchet wheel. A housing is sleeved on the base. The housing has a protrusion disposed on an interior thereof for inserting into the moving slot.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: August 19, 2014
    Inventor: Yi-Fu Chen
  • Patent number: 8806986
    Abstract: A ratchet wrench includes a wrench head, a ratchet assembly and a bushing. The wrench head is made of metal and defines a cavity therein. The ratchet assembly is disposed in the cavity of the wrench head and has an outer configuration corresponding in shape to a periphery of the cavity of wrench head and being slightly smaller than the cavity of the wrench head. The bushing is made of a metal with a hardness greater than that of the wrench head and is fitted in a clearance defined between the ratchet assembly and an inner wall of the cavity of the wrench head. Moreover, the bushing has a substantially consistent thickness so that the bushing has an outer periphery and an inner periphery both corresponding in shape to the periphery of the cavity.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 19, 2014
    Inventor: Yi-Fu Chen
  • Patent number: 8800410
    Abstract: A ratchet wrench with a direction switching structure includes a wrench body with an axial slot, a control slot, and a pivot slot which are interconnected, and a ratchet wheel, a ratcheting member, and a switching member are installed therein, respectively. The switching member pushes against the ratcheting member through a prop member and selectively controls the engagement between the ratcheting member and the ratchet wheel. The circumferential wall of the pivot slot has a circular slot and a stepped surface formed at a position near an opening of the pivot slot provided for latching the switching member into the circular slot by a latch portion thereon and being stopped by the stepped surface for the positioning purpose. The prop member pushes against an appropriate position of the ratcheting member to prevent an unsecured engagement between the ratcheting member and the ratchet wheel.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 12, 2014
    Inventor: Ping-Chung Huang
  • Publication number: 20140196577
    Abstract: A ratchet wrench includes a wrench body and a ratchet assembly disposed in the wrench body. The ratchet assembly includes a ratchet wheel, a Y-shaped bar, two pawls, a pawl spring and a switch member. The Y-shaped bar has a pair of prongs splayed laterally apart. Each of the pawls is engageable with the ratchet wheel and defines a bore in a lower corner thereof for reception of the respective prong of the Y-shaped bar. The pawl spring is disposed between the pawls. The switch member is partly positioned on an exterior of the wrench body, and operable to drive the Y-shaped bar to direct either one of the pawls to engage with the ratchet wheel.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Inventor: Yi-Fu Chen
  • Patent number: 8776640
    Abstract: 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.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: July 15, 2014
    Inventor: Bobby Hu
  • Patent number: 8720307
    Abstract: A ratchet screwdriver includes an adjusting assembly. The adjusting assembly is selectively changable between a first position, a second position, and a third position. When the adjusting assembly is in the first position, a rib is located between the first and second ends of a slanting slot. First and second pawls are engaged with a ratchet portion. A position assembly is engaged in a first bore. A shank is able to drive the screwdriver bit in a clockwise direction or a counterclockwise direction. When the adjusting assembly is in the second position, the shank is able to drive the screwdriver bit in the clockwise direction. When the adjusting assembly is in the third position, the shank is able to drive the screwdriver bit in the counterclockwise direction.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 13, 2014
    Inventor: Zu-Shung Shu
  • Patent number: 8720309
    Abstract: A ratchet wrench having easily assembling structure includes a body, a D-head, a loose ratchet, a heart-shaped spring, a disc and a ring. The body has a head portion. The head portion has a through hole. A plurality of teeth is uniformly defined on the through hole. The D-head is rotatably disposed in the through hole and has a connecting member and a threaded member. The loose ratchet is disposed on the D-head. The heart-shaped spring has a closed tip. The disc is disposed on the head portion. A shouldered hole is opened on the disc. A ring is disposed onto the shouldered hole. The ring is disposed onto the shouldered hole. Under this arrangement, a user engages a tool bit with the connecting member of the present invention to lock a bolt by repeatedly rotating the body of the present invention clockwise/counterclockwise.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: May 13, 2014
    Inventor: Yi-Fu Chen
  • Patent number: 8720308
    Abstract: A dual-pawl ratchet wrench mechanism is disclosed having a stop mechanism for limiting over-travel of a reversing lever for selecting drive directions. In one form, the wrench mechanism includes a ball and spring assembly that cooperate with recesses to define proper positions for the reversing lever, and one or more ramps are provided between the recesses to promote tactile feel and to promote the reversing lever being rotated to a proper position. In some forms, the stop mechanism is formed on a stationary portion, such as a spacer or the wrench body, and a portion of the reversing lever. The design simplifies manufacturing, such as by simplifying assembly and minimizing the need for securements. Additionally, the reversing lever is assembled with the mechanism in a manner to improve sealing.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: May 13, 2014
    Assignee: Snap-on Incorporated
    Inventors: Richard Hopper, Michael Foster, Christopher Thompson