EP0016076A1 - Quick adjustable wrench - Google Patents

Quick adjustable wrench

Info

Publication number
EP0016076A1
EP0016076A1 EP19790900745 EP79900745A EP0016076A1 EP 0016076 A1 EP0016076 A1 EP 0016076A1 EP 19790900745 EP19790900745 EP 19790900745 EP 79900745 A EP79900745 A EP 79900745A EP 0016076 A1 EP0016076 A1 EP 0016076A1
Authority
EP
European Patent Office
Prior art keywords
cleat
belt
handle
adjustable wrench
spring
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.)
Withdrawn
Application number
EP19790900745
Other languages
German (de)
English (en)
French (fr)
Inventor
Mauro Gomes Vidal
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
Publication of EP0016076A1 publication Critical patent/EP0016076A1/en
Withdrawn legal-status Critical Current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
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable

Definitions

  • the invention described in this report is referred to a new type of mechanical tool for gripping bolts and nuts, pertaining to the branch of tools for workshops.
  • the invention, hereon, will be denominated "QUICK ADJUSTABLE WRENCH”.
  • QUICK ADJUSTABLE WRENCH a new type of mechanical tool for gripping bolts and nuts
  • the invention, hereon, will be denominated "QUICK ADJUSTABLE WRENCH”.
  • the conventional wrenches used heretofore are of the open- ended type, the long-box type, the Stillson's, the monkey type and other variations of these tools.
  • the Quick Adjustable Wrench is based on the principle of the friction cleat. It consists basically of five parts: the handle, the cleat, the belt, the spring and the pin.
  • the spring is inserted into a groove in the cleat and the pin is fixed in a hole in the handle; the pin serves as a guide for the cleat and as a stopper for the spring.
  • the belt envelopes the cleat and the handle.
  • the adjustment of the wrench around a bolt head or nut is done by pushing the belt in order to close the jaws and therefore the cleat will be kept firmly against the bolt head or nut. No back movement is allowed due to the special arrangements of the angles of the cleat, belt and handle. When this last one is forced clockwise to rotate a bolt or nut, the reaction torque will force the cleat up and back and the belt will retain the cleat at the same position through friction.
  • Figure 1 shows the handle (1) , the cleat (2) , the spring
  • the handle cover (8) provides a limit for the belt stroke.
  • the upper portion of the handle (1) has a slope surface (7) with an angle of inclination ß .
  • the cleat (2) also presents an angle of inclinationo ⁇ , with the result that the inclination of the belt (4) is ⁇ - ⁇ .
  • the arrangement of the angles is such that the angle eß. is greater than the angle ß , both angles situated in the first quadrant and positive as referred to the trigonometric circle.
  • the shape of the belt (4) is such that two of its faces make an angle equal to ⁇ minus ß .
  • the belt (4) can then glide on the slope surface of the handle (1) and cleat (2) and, by this way, can stop the movement of the cleat (2) at any desired position.
  • the advantages of the quick adjustable wrench as compared to the conventional ones are as follows: a) - Easy operation due to the fast adjusting movement that can be achieved. b) - Effective grip due to the lack of free play caused by the worm gear construction of conventional types. c) - Low cost of fabrication as a consequence of its extreme simplicity.
  • Figure 1 is an exploded view of the Quick Adjustable Wrench, showing the principal parts of the invention.
  • Figure 2 is a lateral view of the wrench, ready for use. e) BEST MODE OF CARRYING OUT THE INVENTION
  • the handle and the cleat may be made of forged steel.
  • the spring is just a conventional compression coil spring and the belt may be fabricated from seamless steel tubes, cold pressed to its shape.
  • the pin can be smoothly machined for interference fixture in the handle or even threaded for better fastening.
  • the machining and finishing of the main parts require only conventional machine-tools for these operation.
  • the handle cover may be of any suitable material. f) INDUSTRIAL APPLICABILITY
  • the Quick Adjustable Wrench is a simple, reliable and safe hand tool that can be used either as a professional tool for industries and mechanical-shops or as a domestic tool for automobiles and home-shops.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP19790900745 1978-07-28 1980-03-11 Quick adjustable wrench Withdrawn EP0016076A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR5800987 1978-07-28
BR5800987U BR5800987U (pt) 1978-07-28 1978-07-28 Chave cintada regulavel para porcas,parafuso e tubos

Publications (1)

Publication Number Publication Date
EP0016076A1 true EP0016076A1 (en) 1980-10-01

Family

ID=3954444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790900745 Withdrawn EP0016076A1 (en) 1978-07-28 1980-03-11 Quick adjustable wrench

Country Status (3)

Country Link
EP (1) EP0016076A1 (pt)
BR (1) BR5800987U (pt)
WO (1) WO1980000324A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1095899C (zh) * 1998-06-30 2002-12-11 可乐丽股份有限公司 皮革状片材的生产方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8520613D0 (en) * 1985-08-16 1985-09-25 Wills J R Adjustable spanner
US4903556A (en) * 1988-12-23 1990-02-27 Tom Masbaum Quick-adjusting wrench
GB2251568B (en) * 1991-01-14 1994-04-20 John Richard Wills Adjustable spanner
FI112857B (fi) * 1995-07-14 2004-01-30 Kone Corp Menetelmä hissin pysäyttämiseksi tasolle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481250A (en) * 1924-01-22 Wrench
US1382248A (en) * 1921-01-03 1921-06-21 Schafer Robert Adjustable spanner
US1514017A (en) * 1922-11-29 1924-11-04 David G Schroeder Wrench
US1511536A (en) * 1923-05-23 1924-10-14 American Wrench Mfg Company In Wrench

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8000324A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1095899C (zh) * 1998-06-30 2002-12-11 可乐丽股份有限公司 皮革状片材的生产方法

Also Published As

Publication number Publication date
BR5800987U (pt) 1979-03-13
WO1980000324A1 (en) 1980-03-06

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19801015