EP0292088A1 - Öffnung zur Montage eines Schlosses - Google Patents

Öffnung zur Montage eines Schlosses Download PDF

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Publication number
EP0292088A1
EP0292088A1 EP88301021A EP88301021A EP0292088A1 EP 0292088 A1 EP0292088 A1 EP 0292088A1 EP 88301021 A EP88301021 A EP 88301021A EP 88301021 A EP88301021 A EP 88301021A EP 0292088 A1 EP0292088 A1 EP 0292088A1
Authority
EP
European Patent Office
Prior art keywords
sides
aperture
lock
straight lines
extending
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Withdrawn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
EP88301021A
Other languages
English (en)
French (fr)
Inventor
Joseph Anthony Lucid
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.)
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Ford Motor Co
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 Ford Werke GmbH, Ford France SA, Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Werke GmbH
Publication of EP0292088A1 publication Critical patent/EP0292088A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
    • E05B9/084—Fastening of lock cylinders, plugs or cores

Definitions

  • This invention relates to motor vehicle body closure panels.
  • Motor vehicle body closure panels such as doors and tailgates are usually provided with apertures for housing a lock.
  • the aperture is non-circular in shape, so that the lock, which is complementary in shape to the aperture, cannot be rotated relative to the panel.
  • one known aperture disclosed in GB-­2,147,654 has two straight, parallel sides and semicircular ends.
  • a determined thief may gain entry to the vehicle with the aid of a wrench by twisting the lock within the aperture with sufficient force to deform the aperture.
  • the resistance to rotation of the lock may be increased by providing recesses in, or projections from, the edge of the aperture.
  • GB-2,417,654 discloses a "keyhole" aperture
  • US-4,381,656 discloses a generally square aperture with rectangular recesses in two opposing faces.
  • Another known aperture is in the shape of a circle with four rectangular recessed disposed in the shape of a cross.
  • the formation of apertures with such recesses or projections by a stamping operation results in rapid wear to the stamping tool in the region of the projections or recesses.
  • a motor vehicle body closure panel having a non-circular aperture for a lock, characterised in that the aperture has first and second sides extending parallel to each other, third and fourth sides disposed symmetrically about a centre line of the aperture extending along straight lines generally at right angles to the first and second sides and converging towards the second side, fifth and sixth sides extending along straight lines and connecting the first side with the third and fourth sides respectively, and seventh and eighth sides connecting the second side with the third and fourth sides, the seventh and eighth sides each having a curved section and a straight section extending tangentially from the curved section.
  • Apertures of this shape can be produced in a stamping operation without causing excessive wear in the stamping tool.
  • the shape of the aperture is also particularly effective in resisting the rotation of a lock of complementary shape mounted in the aperture. If an attempt it made to rotate the lock, the shape of the aperture is such that the initial movement of the lock will cause the lock and aperture to engage along common edges, and the forces tending to deform the aperture will be dissipated over a relatively large area. A very large force must therefore be applied to the lock before the aperture is deformed.
  • an outer panel 1 for a motor vehicle tailgate is provided towards its lower edge with a non-circular aperture 2, best illustrated in Figure 2, for housing a lock (not shown).
  • the aperture 2 is eight-sides, and is symmetrical about a centre line 3.
  • a first side II extends parallel to a second side 12, which is equal in length to the first side 11.
  • Third and fourth sides 13,14 which are disposed on opposite sides of the centre line 3, extend along straight lines generally at right angles to the first and second sides, but converge towards the second side 12.
  • the third and fourth sides 13, 14 are equal in length but longer than the first and second sides 12,13.
  • Fifth and sixth sides 15,16 of the aperture also extend along straight lines and connect the first side 11 with the third and fourth sides respectively.
  • Seventh and eighth sides 17, 18 of the aperture 2 connect the second side 12 with the third and fourth sides respectively and are each composed of a curved section 17a, 18a and a straight section 17b, 18b extending along tangents from the curved sections.
  • any attempt to twist the lock will first cause the lock to roll around one or other of the curved sections 17a, 18a bringing the straight edges of the lock into contact with the corresponding edges 13,14,15 and/or 16 of the aperture.
  • the torque applied to the lock will therefore be transmitted to the panel 1 along these edges.
  • the torque that must be applied to the lock before the aperture deforms sufficiently to allow the lock to rotate freely is very much larger than that required where the lock makes point-contact with the aperture on rotation. Nevertheless, the aperture contains no inwardly-directed corners of the kind that cause rapid wear in stamping tools.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
EP88301021A 1987-04-14 1988-02-08 Öffnung zur Montage eines Schlosses Withdrawn EP0292088A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08708918A GB2203479A (en) 1987-04-14 1987-04-14 Mounting locks
GB8708918 1987-04-14

Publications (1)

Publication Number Publication Date
EP0292088A1 true EP0292088A1 (de) 1988-11-23

Family

ID=10615801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88301021A Withdrawn EP0292088A1 (de) 1987-04-14 1988-02-08 Öffnung zur Montage eines Schlosses

Country Status (2)

Country Link
EP (1) EP0292088A1 (de)
GB (1) GB2203479A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE517943C2 (sv) * 1999-12-16 2002-08-06 Assa Ab Sätt och anordning för infästning av en låscylinderkropp i ett väsentligen plant element

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1389805A (en) * 1921-09-06 Arthur jefferson wycherley
DE533217C (de) * 1930-07-31 1931-09-18 Schlossfabrik Akt Ges Vorm Wil Befestigung von Zylinderschloessern
DE546049C (de) * 1930-03-15 1932-03-12 Niederdrenk & Co Akt Ges Befestigung fuer beiderseits an einem Einstecktuerschloss anzubringende Zylinderschloesser
GB618766A (en) * 1945-03-30 1949-02-28 Frederick Boyce Improvements relating to pin tumbler cylinder locks and the like
GB668149A (en) * 1950-09-01 1952-03-12 Martin Jensen Clamping mechanism for the clamping of a cylinder mechanism to insertion locks

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989090A (en) * 1963-02-19 1965-04-14 Alexander Lander Construction kit for fitting a lock to a door
GB1186683A (en) * 1967-03-01 1970-04-02 Alexander Lander A Kit for Fitting a Lock
US3465557A (en) * 1967-11-15 1969-09-09 Illinois Tool Works Freezer lock assembly
FR1596514A (de) * 1968-07-19 1970-06-22
FR2478174A1 (fr) * 1979-11-30 1981-09-18 Toyo Kogyo Co Dispositif pour monter apres coup une serrure sur une porte d'automobile et procede d'assemblage d'une telle porte
GB2147654B (en) * 1983-10-13 1987-10-21 Pickersgill Kaye Ltd Mounting cylinder lock

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1389805A (en) * 1921-09-06 Arthur jefferson wycherley
DE546049C (de) * 1930-03-15 1932-03-12 Niederdrenk & Co Akt Ges Befestigung fuer beiderseits an einem Einstecktuerschloss anzubringende Zylinderschloesser
DE533217C (de) * 1930-07-31 1931-09-18 Schlossfabrik Akt Ges Vorm Wil Befestigung von Zylinderschloessern
GB618766A (en) * 1945-03-30 1949-02-28 Frederick Boyce Improvements relating to pin tumbler cylinder locks and the like
GB668149A (en) * 1950-09-01 1952-03-12 Martin Jensen Clamping mechanism for the clamping of a cylinder mechanism to insertion locks

Also Published As

Publication number Publication date
GB8708918D0 (en) 1987-05-20
GB2203479A (en) 1988-10-19

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