DE3478671D1 - Reversible ratchet wrench - Google Patents

Reversible ratchet wrench

Info

Publication number
DE3478671D1
DE3478671D1 DE8484904319T DE3478671T DE3478671D1 DE 3478671 D1 DE3478671 D1 DE 3478671D1 DE 8484904319 T DE8484904319 T DE 8484904319T DE 3478671 T DE3478671 T DE 3478671T DE 3478671 D1 DE3478671 D1 DE 3478671D1
Authority
DE
Germany
Prior art keywords
driver
pawl
wrench
teeth
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8484904319T
Other languages
German (de)
Inventor
David S Colvin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE3478671D1 publication Critical patent/DE3478671D1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Valve Device For Special Equipments (AREA)
  • Flexible Shafts (AREA)

Abstract

A reversible ratchet wrench (10) includes a wrench body (11) having a unitary head (12) including an opening (20) with circular driver and pawl portions (22, 24) having cylindrical shapes which facilitate manufacturing and support of a driver (36) and a pawl (38) upon assembly. The driver (26) has a ratchet portion (28) received within the driver portion (22) of the opening and includes ratchet teeth (30) that extend between oppositely facing surfaces 16, 18) of the wrench head (12). The pawl (38) is received within the pawl portion (24) of the opening (20) and includes teeth (40a, 40b) that extend between the wrench head surfaces (16, 18) and provide continuous engagement therebetween for selective locking of the driver in one direction and ratcheting in the other direction. Such continuous engagement of the teeth for the full distance between the oppositely facing surfaces (16, 18) of the head permits the wrench to carry a large amount of torque with a relatively thin construction. A ball (34) of a releasable detent mechanism (35) is provided to secure a socket to a driving lug (32) of the driver (26). A tab (42) of pawl (38) is provided for changing the direction of locking, and a spring biaser (44) operates on the pawl for maintaining the pawl teeth (40a or 40b) in engagement with the ratchet teeth (30) on the driver in order to provide locking in one direction and ratcheting in the other direction.
DE8484904319T 1984-11-27 1984-11-27 Reversible ratchet wrench Expired DE3478671D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1984/001933 WO1986003155A1 (en) 1984-11-27 1984-11-27 Reversible ratchet wrench

Publications (1)

Publication Number Publication Date
DE3478671D1 true DE3478671D1 (en) 1989-07-20

Family

ID=22182339

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484904319T Expired DE3478671D1 (en) 1984-11-27 1984-11-27 Reversible ratchet wrench

Country Status (4)

Country Link
EP (1) EP0203915B1 (en)
AT (1) ATE43987T1 (en)
DE (1) DE3478671D1 (en)
WO (1) WO1986003155A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008053158A1 (en) * 2008-10-24 2010-04-29 Gedore-Werkzeugfabrik Otto Dowidat Kg Ratchet key, particularly double-end ring spanner, single-end ring spanner and flat ratchet key for tightening and loosening of screws and nuts, comprises combination of open-end spanner on one side and ring spanner on other side
TWI807712B (en) * 2022-03-22 2023-07-01 李纘滄 Ratchet wrench structure

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1868839A (en) * 1930-07-03 1932-07-26 Duro Metal Prod Co Ratchet lever
US1957462A (en) * 1933-01-25 1934-05-08 Williams J H & Co Ratchet wrench
US2542241A (en) * 1946-10-23 1951-02-20 New Britain Machine Co Ratchet mechanism
US2701977A (en) * 1953-05-07 1955-02-15 Wright Tool And Forge Company Reversible ratchet wrench
US3490317A (en) * 1967-04-14 1970-01-20 Utica Tool Co Dual driver ratchet wrench
US3713356A (en) * 1971-01-18 1973-01-30 Snap On Tools Corp Socket release mechanism for wrenches and the like
US4272311A (en) * 1979-05-17 1981-06-09 Angelo Joseph J D Method and apparatus for automatically labelling containers
US4274311A (en) * 1979-07-23 1981-06-23 Emil Ebert Ratchet wrench handle
US4280379A (en) * 1980-01-11 1981-07-28 Chow Kirk K Reversihble ratchet drive

Also Published As

Publication number Publication date
WO1986003155A1 (en) 1986-06-05
EP0203915B1 (en) 1989-06-14
EP0203915A4 (en) 1987-07-09
ATE43987T1 (en) 1989-06-15
EP0203915A1 (en) 1986-12-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee