EP1618997A1 - Ratschenschlüssel - Google Patents

Ratschenschlüssel Download PDF

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Publication number
EP1618997A1
EP1618997A1 EP05021712A EP05021712A EP1618997A1 EP 1618997 A1 EP1618997 A1 EP 1618997A1 EP 05021712 A EP05021712 A EP 05021712A EP 05021712 A EP05021712 A EP 05021712A EP 1618997 A1 EP1618997 A1 EP 1618997A1
Authority
EP
European Patent Office
Prior art keywords
claws
gear
pothole
annular
circular space
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.)
Pending
Application number
EP05021712A
Other languages
English (en)
French (fr)
Inventor
designation of the inventor has not yet been filed The
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.)
Infar Industrial Co Ltd
Original Assignee
HUANG HSIU CHING
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
Priority claimed from US10/454,196 external-priority patent/US7082859B2/en
Application filed by HUANG HSIU CHING filed Critical HUANG HSIU CHING
Publication of EP1618997A1 publication Critical patent/EP1618997A1/de
Pending legal-status Critical Current

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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

Definitions

  • the present invention relates to a robust wrench.
  • Taiwanese Patent Publication No. 380471 discloses a conventional wrench including an annular head 20 and a grip 21 extending from the annular head 20.
  • the annular head 20 defines a space 22, a recess 23 communicated with the space 22, a hole 24 communicated with the recess 23, a hole 25 co-centrically communicated with the hole 24 and a hole 26 eccentrically communicated with the hole 24.
  • the space 22 partially overlaps the hole 24.
  • a clutch is put in the recess 23.
  • the clutch includes two claws 40 and a spring 43 between the claws 40.
  • Each of the claws 40 includes a toothed face 41 and a rod 42.
  • An annular gear 30 is put in the space 22.
  • the annular gear 30 includes a toothed internal face 31 for engagement with a nut or a head of a bolt and a toothed external face 33 for engagement with the toothed face 41 of one of the claws 40.
  • a positioning device 60 is put in the hole 26.
  • the positioning device 60 includes a spring 61 and a ball detent 62.
  • a disc 50 is put in the hole 24.
  • the disc 50 includes a central hole 51 through which a bolt is driven into the hole 25.
  • a recess 52 and two recesses 53 are defined in a lower face of the disc 50.
  • the rods 42 are put in the recess 52.
  • the recess 52 includes two opposite walls in contact with the rods 42.
  • the ball detent 62 can be put in one of the recesses 53.
  • a handle 54 is secured to the disc 50.
  • the annular gear 30 is likely to escape the space 22 since it is retained only by means of a portion of the disc 50.
  • the present invention is therefore intended to obviate or at least alleviate the problem encountered in prior art.
  • the primary objective of the present invention is to provide a robust wrench.
  • a wrench includes a handle, a clutch, a detent, a controller, a gear and a C-ring.
  • the handle includes an annular head defining a circular space, a pothole not overlapping the circular space, a channel for communicating the circular space with the pothole, a recess and an annular groove both defined in a wall of the circular space.
  • the clutch includes two claws put in the recess and a spring put between the claws. Each of the claws includes a toothed face and a rod. The claws can easily be put into the recess since the rods can be moved through the channel.
  • a controller is put rotationally in the pothole for moving the rods.
  • the gear is put in the circular space.
  • the gear includes a toothed face for engagement with the toothed face of one of the claws.
  • the C-ring includes an external edge put in the annular groove, an internal edge for retaining the annular gear in the circular space and a gate projecting from an upper face for blocking the channel.
  • a wrench 1 according to a first embodiment of the present invention includes a handle 10, an annular gear 20, a clutch 30 and a controller 40.
  • the handle 10 includes an annular head 11 and a grip (not numbered) extending from the annular head 11.
  • the annular head 11 defines a space 12 and a pothole 13.
  • the space 12 is in the form of a large circle.
  • the pothole 13 is in the form of a small circle not overlapping the large circle.
  • the space 12 is communicated with the pothole 13 through a channel 15.
  • a recess 14 and an annular groove 16 are defined in the wall of the space 12.
  • the recess 14 is communicated with the pothole 13.
  • a hole 17 is defined in the bottom of the pothole 13.
  • the clutch 30 is put in the recess 14.
  • the clutch 30 includes two claws 31 and a spring 32 between the claws 31.
  • Each of the claws 31 includes a toothed face 33 and a rod 34.
  • the claws 31 can be put into the recess 14 since the rods 34 can be moved through the channel 15.
  • a positioning device including a spring 18 and a ball detent 19 is put in the hole 17.
  • the controller 40 is put in the pothole 13.
  • the controller 40 includes a disc 41 and a C-ring 42.
  • the disc 41 includes a recess 43 and two recesses 44 all defined in a lower face.
  • the rods 34 are put in the recess 43.
  • the recess 43 includes two opposite walls for contact with the rods 42.
  • the ball detent 19 can be put in one of the recesses 44.
  • a ridge 45 is formed on an upper face of the disc 41.
  • the disc 41 defines an annular groove 46 so as to receive an internal edge of the C-ring 42.
  • the wall of the pothole 13 defines an annular groove 47 so as to receive an external edge of the C-ring 42.
  • the annular gear 20 is put in the space 12.
  • the annular gear 20 includes a toothed internal face (not numbered) for engagement with a nut or a head of a bolt and a toothed external face 22 for engagement with the toothed face 33 of one of the claws 31.
  • a C-ring 21 includes a gate 23 projecting from an upper face.
  • the C-ring 21 includes an external edge put in the annular groove 16 and an internal edge for retaining the annular gear 20 in the space 12.
  • the channel 15 is shut by means of the gate 21.
  • Figure 5 shows a wrench 1 according to a second embodiment of the present invention.
  • the disc 41 includes a rod 48 projecting from the lower face.
  • An annular groove 49 is defined in the rod 48.
  • the rod 48 is inserted through an aperture 50 defined in the bottom of the pothole 13.
  • a C-clip 51 includes an internal edge put in the annular groove 49 and an external edge for abutment against the annular head 11.
  • the second embodiment is otherwise identical to the first embodiment.
  • Figure 6 shows a wrench 1 according to a third embodiment of the present invention.
  • the disc 41 includes a hole 52 defined in the lower face.
  • a bolt 53 is driven into the hole 52 through the aperture 50.
  • a gear 24 is put in the space 12.
  • the gear 24 includes an insert 25 projecting from a lower face.
  • the insert 25 can be fit in a socket (not shown) that can receive a nut or a head of a bolt.
  • An annular groove 49 is defined in the rod 48.
  • the rod 48 is inserted through an aperture 50 defined in the bottom of the pothole 13.
  • a C-clip 51 includes an internal edge put in the annular groove 49 and an external edge for abutment against the annular head 11.
  • the third embodiment is otherwise identical to the second embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP05021712A 2003-06-05 2003-08-18 Ratschenschlüssel Pending EP1618997A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/454,196 US7082859B2 (en) 2003-05-29 2003-06-05 Robust wrench
EP20030018541 EP1484135B1 (de) 2003-06-05 2003-08-18 Ratschenschlüssel

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP20030018541 Division EP1484135B1 (de) 2003-06-05 2003-08-18 Ratschenschlüssel

Publications (1)

Publication Number Publication Date
EP1618997A1 true EP1618997A1 (de) 2006-01-25

Family

ID=33159543

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05021712A Pending EP1618997A1 (de) 2003-06-05 2003-08-18 Ratschenschlüssel
EP20030018541 Expired - Lifetime EP1484135B1 (de) 2003-06-05 2003-08-18 Ratschenschlüssel

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20030018541 Expired - Lifetime EP1484135B1 (de) 2003-06-05 2003-08-18 Ratschenschlüssel

Country Status (3)

Country Link
EP (2) EP1618997A1 (de)
CN (1) CN1270873C (de)
DE (1) DE60303469T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8499666B2 (en) * 2007-03-21 2013-08-06 Snap-On Incorporated Dual pawl ratchet mechanism and reversing method
US7987747B2 (en) * 2007-04-05 2011-08-02 Snap-On Incorporated Bias assembly for ratchet tools
TW201000267A (en) * 2008-06-19 2010-01-01 Hou-Fei Hu Three-way ratchet wrench
CN101642901B (zh) * 2008-08-07 2012-05-30 胡厚飞 三段定位的棘轮扳手
CN101670567B (zh) * 2008-09-08 2012-07-04 胡厚飞 棘轮扳手
CN101683729B (zh) * 2008-09-28 2012-03-14 胡厚飞 三向棘轮扳手
TWI500485B (zh) * 2014-10-30 2015-09-21 Infar Ind Co Ltd 棘輪扳手結構
CN110014389A (zh) * 2018-01-10 2019-07-16 豪越股份有限公司 换向装置及具有所述换向装置的棘轮扳手
TWI681848B (zh) * 2019-02-26 2020-01-11 豪越股份有限公司 換向裝置及具有該換向裝置的棘輪扳手
US11110571B2 (en) 2019-08-28 2021-09-07 Haur Yueh Co., Ltd. Switch device and ratchet wrench having the same
US11865678B2 (en) * 2021-02-02 2024-01-09 Snap-On Incorporated Dual pawl ratchet mechanism
US11986928B2 (en) 2022-04-14 2024-05-21 Snap-On Incorporated Pawl mechanism for ratchet tool

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353746A (en) * 1999-09-04 2001-03-07 Jack Lee Twin pawled ratchet tool
EP1084797A1 (de) * 1999-07-30 2001-03-21 Hand Tool Design Corporation Umkehrbares Ratschenwerkzeug mit Zahnrad/Sperrklinken Eingriff
US6289771B1 (en) * 2000-07-06 2001-09-18 Chih-Ching Hsieh Double-reversible ratchet wrench
DE20201047U1 (de) * 2002-01-24 2002-04-11 Lee Daniel Ratschenschlüssel
US6382052B1 (en) * 2001-04-02 2002-05-07 Shwu Ruu Chen Ratchet tool
US6386072B1 (en) * 2001-03-21 2002-05-14 Chi Yuan-Chin Ratchet tool
US6513409B1 (en) * 2002-01-25 2003-02-04 Daniel Lee Ratchet wrench structure
DE10238793A1 (de) * 2001-08-27 2003-03-27 Bobby Hu Ratschenringschlüssel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1084797A1 (de) * 1999-07-30 2001-03-21 Hand Tool Design Corporation Umkehrbares Ratschenwerkzeug mit Zahnrad/Sperrklinken Eingriff
GB2353746A (en) * 1999-09-04 2001-03-07 Jack Lee Twin pawled ratchet tool
US6289771B1 (en) * 2000-07-06 2001-09-18 Chih-Ching Hsieh Double-reversible ratchet wrench
US6386072B1 (en) * 2001-03-21 2002-05-14 Chi Yuan-Chin Ratchet tool
US6382052B1 (en) * 2001-04-02 2002-05-07 Shwu Ruu Chen Ratchet tool
DE10238793A1 (de) * 2001-08-27 2003-03-27 Bobby Hu Ratschenringschlüssel
DE20201047U1 (de) * 2002-01-24 2002-04-11 Lee Daniel Ratschenschlüssel
US6513409B1 (en) * 2002-01-25 2003-02-04 Daniel Lee Ratchet wrench structure

Also Published As

Publication number Publication date
EP1484135A1 (de) 2004-12-08
CN1572427A (zh) 2005-02-02
DE60303469T2 (de) 2006-09-07
EP1484135B1 (de) 2006-02-08
CN1270873C (zh) 2006-08-23
DE60303469D1 (de) 2006-04-20

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