EP1249313A1 - Einstellbarer Schraubenschlüssel - Google Patents

Einstellbarer Schraubenschlüssel Download PDF

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Publication number
EP1249313A1
EP1249313A1 EP20010109074 EP01109074A EP1249313A1 EP 1249313 A1 EP1249313 A1 EP 1249313A1 EP 20010109074 EP20010109074 EP 20010109074 EP 01109074 A EP01109074 A EP 01109074A EP 1249313 A1 EP1249313 A1 EP 1249313A1
Authority
EP
European Patent Office
Prior art keywords
frame
adjustable
jaw
adjustable jaw
packing device
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.)
Granted
Application number
EP20010109074
Other languages
English (en)
French (fr)
Other versions
EP1249313B1 (de
Inventor
Arthur Wu
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
Priority to EP01109074A priority Critical patent/EP1249313B1/de
Priority to ES01109074T priority patent/ES2255523T3/es
Priority to AT01109074T priority patent/ATE313414T1/de
Priority to DE60116049T priority patent/DE60116049T2/de
Priority to CA002348327A priority patent/CA2348327C/en
Publication of EP1249313A1 publication Critical patent/EP1249313A1/de
Application granted granted Critical
Publication of EP1249313B1 publication Critical patent/EP1249313B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
    • B25B13/14—Spanners; Wrenches with adjustable jaws the jaws being slidable by rack and pinion, worm or gear
    • 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
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable

Definitions

  • the present invention relates to hand tools and, more specifically, to an adjustable wrench.
  • the user When operating a conventional adjustable wrench 100, as shown in FIG. 1, the user may hold the adjustable wrench 100 in horizontal, and then rotates the adjusting worm 101 with the thumb to move the adjustable jaw 102 to the desired position.
  • a clearance c is left between the slide rails 103 of the adjustable jaw 102 and the slide rails 104 of the fixed jaw.
  • the moment produced by the weight w of the adjustable jaw 102 forces the adjustable jaw 102 to incline in one direction, thereby causing one slide rail 103 of the adjustable jaw 102 to attach one slide rail 104 of the fixed jaw.
  • a conventional method of eliminating the aforesaid problem is to reduce the clearance c between the adjustable jaw and the fixed jaw.
  • ASME The American Society of Mechanical Engineers
  • B107.8M-1996 defines that the clearance of the adjustable jaw must be as low as within 0.3mm ⁇ 0.47mm.
  • ISO International Standard Organization
  • E defines that the clearance of the adjustable jaw must be as low as within 0.25mm ⁇ 0.36mm when applying a slight side pressure on the adjustable jaw.
  • the definitions of ISO and ASME do not stop the occurence of friction between the slide rails of the adjustable jaw and the slide rails of the fixed jaw, i. e., these definitions do not eliminate the aforesaid problem.
  • an adjustable wrench is provided compromised of a frame, having a handle, a fixed jaw and a track at one end of the handle.
  • An adjusting worm is pivoted to the frame for free rotation.
  • An adjustable jaw is mounted in the track and meshed with the adjusting worm and moved relative to the fixed jaw upon rotating the adjusting worm.
  • Two spaces or clearances are defined at two sides of the adjustable jaw within the track of the frame.
  • At least one spacer or packing device is provided in each of two spaces ensuring a minimum width of the respective space for reducing or preventing the friction between side rails of the adjustable jaw and slide rails of the fixed jaw.
  • the adjustable wrench prevents the adjustable jaw from trembling in its moving direction when adjusted to the desired position.
  • FIG. 1 illustrates an adjustable wrench constructed according to the prior art.
  • FIG. 2 is an exploded view of an adjustable wrench constructed according to a first embodiment of the present invention.
  • FIG. 3 is a front view of the adjustable wrench according to the first embodiment of the present invention.
  • FIG. 4 is a side view of the adjustable wrench according to the first embodiment of the present invention.
  • FIG. 5 is a front view of an adjustable wrench constructed according to a second embodiment of the present invention.
  • FIG. 6 is a side view of the adjustable wrench according to the second embodiment of the present invention.
  • FIG. 7 is a front view of an adjustable wrench constructed according to a third embodiment of the present invention.
  • FIG. 8 is a side view of the adjustable wrench according to the third embodiment of the present invention.
  • FIG. 9 is a side view of an adjustable wrench constructed according to a fourth embodiment of the present invention.
  • FIG. 10 is a side view of an adjustable wrench constructed according to a fifth embodiment of the present invention.
  • FIG. 11 is a front view of an adjustable wrench constructed according to a sixth embodiment of the present invention.
  • FIG. 12 is a side view of the adjustable wrench according to the sixth embodiment of the present invention.
  • the frame 10 has a handle 11, a fixed jaw 12 at one end of the handle 11, two parallel side rails 15 prependicularly extended forwards from one side of the fixed jaw 12, a transverse track 13 defined between the rails 15, and an opening 14 disposed below the track 13 and in communication with the track 13.
  • the adjusting worm 21 is pivotally mounted in the opening 14 of the frame 10 by the pivot pin 23.
  • the worm spring 22 is mounted on the pivot pin 23, having one end being against one end of the adjusting worm 21 and the other end being against the frame 10.
  • the adjustable jaw 30 has a bottom neck 31, two through holes 341 and 342 extended through the bottom neck 31, a cylindrical sliding block 32 transversely disposed at the bottom side of the bottom neck 31.
  • the neck 31 and the sliding block 32 of the adjustable jaw 30 are received in the track 13 of the frame 10 for enabling the adjustable jaw 30 to be moved along the track 13.
  • a rack 33 is provided at the bottom side of the sliding block 32 and meshes with the adjusting worm 21 for enabling the adjustable jaw 30 to be moved in the track 13 upon rotating the adjusting worm 21.
  • Two slide rails 35 are disposed at two sides of the neck 31 above the adjusting block 32. After insertion of the neck 31 and sliding block 32 of the adjustable jaw 30 into the track 13 of the frame 10, two spaces or clearances 131 and 132 are left at two opposite sides of the neck 31 of the adjustable jaw 30 within the track 13 of the frame 10.
  • the packing devices 41 and 42 are elastic rubber rods of length not shorter than the width of the track 13 of the frame 10.
  • the packing devices 41 and 42 are respectively pressed into the through holes 341 and 342 of the bottom neck 31 of the adjustable jaw 30 with interference fit.
  • Each of the packing devices 41 and 42 have two rounded distal end respectively suspended in the spaces 131 and 132 and being against the frame 10.
  • a clearance c1 is produced between the rack 33 of the adjustable jaw 30 and the adjusting worm 21.
  • the clearance c1 will cause the adjustable jaw 30 to tremble in its moving direction, resulting a variation of the size s between the fixed jaw 12 and the adjustable jaw 30. If the adjustable jaw 30 trembles, interference will be produced when repeatedly turning the workpiece.
  • the adjustable wrench of the present invention can eliminate above problem. This achievement is described hereinafter.
  • the two distal ends of the each of the packing devices 41 and 42 are respectively against the frame 10.
  • a friction force f is produced between the packing devices 41 and 42 and the frame 10.
  • This friction force f can stop the tremble of the adjustable jaw 30 resulted form the clearance c1 between the adjusting worm 21 and the rack 33.
  • the adjusable wrench 1 eliminates friction between the rails 15 of the frame 10 and the rails 35 of the adjustable jaw 30, and provides a friction force to secure the adjustable jaw 30 in position after cach adjustment.
  • an adjustable wrench 2 according to a second embodiment of the present invention is shown comprised of a frame 51, an adjustable jaw 52, an adjusting worm 53, and two spacers or packing devices 54 and 55.
  • the bottom neck 521 of the adjustable jaw 52 has two elogated recessed slots 522 at two opposite sides.
  • the packing devices 54 and 55 are coated with a layer of Teflon coating or friction-resisting coating, each having one end engaged into one elongated recessed slot 522 and an opposite end stopped against the frame 10.
  • an adjustable wrench 3 according to a third embodiment of the present invention is shown comprised of a frame 61, an adjustable jaw 62 and an adjusting worm 63.
  • the adjustable jaw 62 has two recessed round slots 621 and 622 disposed at one side and one recessed round slot disposed at one side and one recessed round slot 623 disposed at an opposite side.
  • Three spacers or packing devices 64, 65 and 66 (in FIG. 8, only one packing devices 64 is shown in complete), each of which has a metal ball 641 and elastic member 642 (in this embodiment, the elastic member is a spring).
  • the elastic member 642 is mounted inside the recessed round slot 621.
  • the ball 641 is supported on the elastic member 642, and forced outwards by the elastic member 642 and being against the frame 61.
  • FIG. 9 shows an adjustable wrench 4 according to s fourth embodiment of the present invention.
  • the adjustable wrench 4 has an adjustable jaw 72, which has two through holes 721 (only one through hole is shown in the drawings), and two spacers or packing devices 73 (only one packing device is shown in the drawings) are respectively mounted in the through holes 721.
  • the packing devices 73 each has an elastic member 732, which is a spring, mounted in one through hole 721.
  • Two metal balls 731 respectively supported on the two ends of the elastic member 732 and respectively partially projecting out of the two opposites orifices of the through hole 721 and forced by the elastic member 72 against the frame 71.
  • each packing device is installed in the adjustable jaw of the adjustable wrench.
  • the packing devices can be installed in the frame to achieve the same function.
  • FIG. 10 shows an adjustable wrench 5 of a fifth embodiment of the present invention.
  • the adjustable wrench 5 has a frame 81, which has two pairs of through holes 811 and 812 (only one of the through holes 811 and 812 are shown in the drawing) disposed in communication with and aligned at two sides of the track 813.
  • Four spacers or packing devices 84 and 85 are respectively installed in the through holes 811 and 812 (only two packing devices are shown in the drawing). Similar to the aforesaid third embodiment, the packing devices 84 and 85 each has a metal ball 841 or 851 and a elastic member 842 or 852.
  • stop elements 814 and 815 are respectively fixedly fasted to the outer end of the each of the through holes 811 and 812 to close the through holes 811 and 812 and to stop the respective packing devices 84 and 85 in place.
  • the outer end of each of the stop elements 814 and 815 is respectively polished and maintained in flush with the outside wall of the frame 81.
  • FIGS. 11 and 12 show an adjustable wrench 6 according to a sixth embodiment of the present invention.
  • a frame 91 has two elongated slots 911 and 912 bilaterally disposed in the track 913 and respectively longitudinally extended to the open end of the track 913.
  • Two spacers or packing devices 94 and 95 are respectively mounted in the elongated slots 911 and 912 and being against the adjustable jaw 92.
  • a prototype of adjustable wrench has been constructed with the features of the annexed drawings.
  • the adjustable wrench functions smoothly to provide all of the features discussed carlier.
  • An adjustable wrench adjustable wrench includes a frame, having a handle, a fixed jaw and a track at one end of the handle.
  • An adjusting worm pivoted to the frame for free rotation.
  • An adjustable jaw having one end received in the track and meshed with the adjusting worm for moving relative to the fixed jaw upon rotating the adjusting worm.
  • Two spaces defined at the two sides of adjustable jaw within the track.
  • At least one packing device provided in each of the two spaces, having one end fastened to the adjustable jaw and the other end being against the frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Valve Device For Special Equipments (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Sealing Devices (AREA)
EP01109074A 2001-04-11 2001-04-11 Einstellbarer Schraubenschlüssel Expired - Lifetime EP1249313B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP01109074A EP1249313B1 (de) 2001-04-11 2001-04-11 Einstellbarer Schraubenschlüssel
ES01109074T ES2255523T3 (es) 2001-04-11 2001-04-11 Llave inglesa.
AT01109074T ATE313414T1 (de) 2001-04-11 2001-04-11 Einstellbarer schraubenschlüssel
DE60116049T DE60116049T2 (de) 2001-04-11 2001-04-11 Einstellbarer Schraubenschlüssel
CA002348327A CA2348327C (en) 2001-04-11 2001-05-24 Adjustable wrench

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01109074A EP1249313B1 (de) 2001-04-11 2001-04-11 Einstellbarer Schraubenschlüssel
CA002348327A CA2348327C (en) 2001-04-11 2001-05-24 Adjustable wrench

Publications (2)

Publication Number Publication Date
EP1249313A1 true EP1249313A1 (de) 2002-10-16
EP1249313B1 EP1249313B1 (de) 2005-12-21

Family

ID=25682575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109074A Expired - Lifetime EP1249313B1 (de) 2001-04-11 2001-04-11 Einstellbarer Schraubenschlüssel

Country Status (5)

Country Link
EP (1) EP1249313B1 (de)
AT (1) ATE313414T1 (de)
CA (1) CA2348327C (de)
DE (1) DE60116049T2 (de)
ES (1) ES2255523T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102699852A (zh) * 2012-06-20 2012-10-03 无锡商业职业技术学院 一种可调扳手
US9539707B2 (en) 2014-01-06 2017-01-10 New Way Tools Co., Ltd. Adjustable wrench with strength enhancing structural design

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR533583A (fr) * 1919-12-16 1922-03-06 Clé anglaise
DE358684C (de) * 1922-09-15 Heinrich Vollmer Selbstsperrender Schraubenschluessel
US1444793A (en) * 1922-02-23 1923-02-13 Keller Thomas Wrench
FR916961A (fr) * 1945-07-03 1946-12-20 Mecanicarm Ets Perfectionnements apportés aux clés à molettes
US2574834A (en) * 1947-10-08 1951-11-13 John R Leonard Pipe wrench
US3546982A (en) * 1968-04-26 1970-12-15 Dresser Ind Adjustable wrench
US4344339A (en) * 1980-10-06 1982-08-17 John Penner Adjustable wrench
US4449431A (en) * 1981-02-20 1984-05-22 Ab Bahco Verktyg Screw wrench
WO1994001246A1 (en) * 1992-07-10 1994-01-20 Kazanskoe Opytnoe Konstruktorskoe Bjuro 'sojuz' Adjustable spanner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE358684C (de) * 1922-09-15 Heinrich Vollmer Selbstsperrender Schraubenschluessel
FR533583A (fr) * 1919-12-16 1922-03-06 Clé anglaise
US1444793A (en) * 1922-02-23 1923-02-13 Keller Thomas Wrench
FR916961A (fr) * 1945-07-03 1946-12-20 Mecanicarm Ets Perfectionnements apportés aux clés à molettes
US2574834A (en) * 1947-10-08 1951-11-13 John R Leonard Pipe wrench
US3546982A (en) * 1968-04-26 1970-12-15 Dresser Ind Adjustable wrench
US4344339A (en) * 1980-10-06 1982-08-17 John Penner Adjustable wrench
US4449431A (en) * 1981-02-20 1984-05-22 Ab Bahco Verktyg Screw wrench
WO1994001246A1 (en) * 1992-07-10 1994-01-20 Kazanskoe Opytnoe Konstruktorskoe Bjuro 'sojuz' Adjustable spanner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102699852A (zh) * 2012-06-20 2012-10-03 无锡商业职业技术学院 一种可调扳手
US9539707B2 (en) 2014-01-06 2017-01-10 New Way Tools Co., Ltd. Adjustable wrench with strength enhancing structural design

Also Published As

Publication number Publication date
DE60116049T2 (de) 2006-07-27
DE60116049D1 (de) 2006-01-26
CA2348327C (en) 2005-09-20
ATE313414T1 (de) 2006-01-15
ES2255523T3 (es) 2006-07-01
CA2348327A1 (en) 2002-11-24
EP1249313B1 (de) 2005-12-21

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