EP0063428B1 - Procédé de façonnage d'une clé - Google Patents

Procédé de façonnage d'une clé Download PDF

Info

Publication number
EP0063428B1
EP0063428B1 EP19820301669 EP82301669A EP0063428B1 EP 0063428 B1 EP0063428 B1 EP 0063428B1 EP 19820301669 EP19820301669 EP 19820301669 EP 82301669 A EP82301669 A EP 82301669A EP 0063428 B1 EP0063428 B1 EP 0063428B1
Authority
EP
European Patent Office
Prior art keywords
key
blank
blades
shaped
barrel
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
EP19820301669
Other languages
German (de)
English (en)
Other versions
EP0063428A3 (en
EP0063428A2 (fr
Inventor
Brian Francis Preddey
Laurence Peter Mills
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.)
Taboola Pty Ltd
Original Assignee
Taboola Pty Ltd
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 AU82322/82A external-priority patent/AU553441B2/en
Application filed by Taboola Pty Ltd filed Critical Taboola Pty Ltd
Priority to AT82301669T priority Critical patent/ATE17881T1/de
Publication of EP0063428A2 publication Critical patent/EP0063428A2/fr
Publication of EP0063428A3 publication Critical patent/EP0063428A3/en
Application granted granted Critical
Publication of EP0063428B1 publication Critical patent/EP0063428B1/fr
Expired 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
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0082—Side bar locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0041—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key
    • E05B19/007—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key with U- or V-shaped cross-section

Definitions

  • the present invention relates to a method of forming a key.
  • US-A-3 754 422 discloses a cylinder type lock designed to receive a "U-shaped key” having tumbler manipulating grooves (a key profile) formed in the facing surface of its essentially parallel side portions.
  • the key is formed from a generally planar blank comprising two longitudinally extending key blades joined by a longitudinal base. The key profiles are cut in the inwardly facing surfaces of the blades and the blades are then bent towards each other so as to define in combination with the base a key of generally "U-shaped" transverse cross-section.
  • the present invention provides accordingly a method of forming a key, said method comprising the steps of providing a key blank with two longitudinally extending key blades joined by a longitudinal base, and bending the blades toward each other so as to define in combination with the base a key of generally "U-shaped" transverse cross-section, characterised in that the key blank initially has a generally "V-shaped” transverse cross-section so as to define transversely converging blades, and a key profile is cut in at least one of the "V-shaped” blades so as to provide at least one recess extending inwardly from the longitudinal edge of the blades before said blades are further bent towards each other to obtain said key of generally "U-shaped” transverse cross-section.
  • FIG. 1 there is schematically depicted a barrel 10 of a cylinder lock, which barrel 10 is adapted to be located within the housing 11 of Figure 3.
  • the barrel 10 includes a generally cylindrical body 12 having end faces 13 and 14.
  • Formed in the body 12 is a keyway 15 which extends longitudinally inwardly from the face 14 to adjacent the face 13.
  • the keyway 15 has a configuration adapted to receive particularly the key of Figures 4 and 5, however it may be altered to fit any one of the keys depicted in Figures 6 to 9.
  • a plurality of bores 16 which are divided into two longitudinally extending sets 16A and 16B. Additionally the bores 16 are arranged in pairs consisting of a bore from each set. Slidably received within each bore is a locking pin 17, which locking pins are divided into sets 17A and 17B. The locking pins 17A and 17B are held in a spaced parallel relationship by a plate 18 which in combination with the internal surfaces of the bores 16, restrict the locking pins 17 to moving in a direction generally perpendicular to the longitudinal axis of the body 12.
  • the body 12 is further provided with two longitudinally extending recesses 19 which are adapted to receive locking bars 20 which have locking projections 21.
  • the locking bars 20 are biased to a radially outer position by means of springs 22.
  • the locking bars 20 are slidably received within the recesses 19 so as to be movable from a radially inner position allowing rotation of the barrel 10 to a radially outer position engaged within the grooves 23 (Fig. 3) formed on the internal surfaces of the housing 11. In this radially outer position the barrel 10 is prevented from rotating by the locking bars 20.
  • Each of the pins 17 is provided with a recess 24 which is dimensioned to receive a locking projection 21 so that upon location of the recesses 24 in the correct position, the corresponding locking projection is engageable therein. Additionally each pin 17 may be provided with a dummy recess 25 which is provided to hinder picking of the lock.
  • each of the pins 17 is located so that the locking projections 21 are receivable within the recess 24 thereby allowing the locking bars 20 to move to a radially inner position.
  • the barrel 10 may be rotated. If the recesses 24 are not all correctly aligned, then the locking bars are prevented from moving thus retaining the barrel 10 in a locking position.
  • the locking bars 20 are provided with converging surfaces 26 which cooperate with converging surfaces 27 forming the groove 23 to force the locking bars 20 radially inwardly.
  • the locking pins 17 are biased to a position projecting inwardly of the keyway 15 by means of springs 28 which bear against the locking pins 17 and a cover plate 29.
  • FIG. 2 wherein there is schematically depicted a barrel 30 which is of very similar construction to the barrel 10 of Figure 1.
  • the barrel 30 has a keyway 31 provided with longitudinally extending flutes 32 which again increases the number of combinations available for the lock.
  • further pins 33 which are adapted to engage an annular groove formed on the internal surfaces of the housing 11.
  • the pins 33 are slidably received within passages 34 formed in the body 12 with a spring 35 being provided to bias the pins 33 to their radially outer position retaining the barrel 30 within the housing 11.
  • FIG. 4 there is schematically depicted a key 40 of generally U-shaped transverse cross section so as to have upwardly extending key blades 41 joined by a base 42.
  • the key 40 is also provided with longitudinally extending flutes and ridges 43 adapted to increase the number of combinations available to the lock.
  • the teeth 44 formed in the blades 41 are separated by valleys 45 which may extend downwardly to a limit position adjacent the base 42.
  • a particular feature provided in the key 40 is the leading portion 46 which is substantially of a chisel configuration enabling the barrel 10 to be self contained in that outer locking pins are not required. By providing the key 40 with the leading portion 46, the locking pins 17 may extend further into the keyway 15.
  • the barrel 60 has a front face 61 which defines a key slot 63.
  • the key slot 63 is shaped so as to accommodate a wide range of key configurations of the type suitable for the barrel 60.
  • the front face 61 is further provided with a transversely extending slot which is adapted to receive a key selection member 64 which has a key slot 65 which is aligned with the slot 63 when the member 64 is located within the slot 62.
  • a standard barrel 60 may be provided with individual key combinations being selected by interchangeable key selection members 65.
  • the barrel 66 is similar to that of Figure 11 in that it is provided with a removable front portion 67. Further, the barrel 66 is provided with a key slot 68 adapted to receive a large variety of key configurations which are suitable to be used with the barrel 60. Additionally, the barrel 60 is provided with a central cylindrical aperture 73 adapted to receive a cylindrical projection 74 forming part of the front portion 67. Additionally, there is provided a passage 70 extending through the cylindrical projection 74 which is aligned with passages 71 formed in the barrel 66 to allow the insertion of a pin 72 to retain the front portion 67 in its operative position.
  • the front portion 67 (which acts as a key selection member) has a key slot 69 which is adapted to select a particular key configuration. Accordingly the barrel 66 is adapted to be used as a standard barrel with particular key configurations being selected by the front portion 67.
  • the initial key blank 50 is provided with a blade portion 51 and a head portion 52.
  • the blade portion 51 has longitudinal recesses or ribs 53 which may be varied to alter the combination provided by the key. These recesses or ribs 53 which match the flutes 32 of Figure 2 or the configuration of the key slot of the key selection members 64 and 67 of Figures 6 and 7.
  • the head portion 52 is provided with recesses or holes 54 to securely engage a plastic key head.
  • the blank 50 is bent about two longitudinally extending axes so as to provide an intermediate key blank 50A having a blade portion 51 with a "V-shaped" transverse cross-section.
  • the intermediate blank 50A has key blades 55 joined by a base 56.
  • the head portion 52 is also bent so as to provide the head parts 57.
  • the finished key 50B is formed by cutting key profiles in the blades 55 and then further bending the blades so as to provide the key 50B with a substantially "U-shaped" transverse cross-section. Additionally a plastic head would be securely located between the head portions 57.
  • the blank 50 is also provided with two grooves 57 which extend along the two longitudinal axes about which the blank 50 is bent.
  • the grooves 57 aid in the accurate bend of the blank 50 to form the intermediate blank 50A.
  • the grooves 57 are dimensioned so as to not be totally closed when the intermediate blank 50A is formed. The remaining unclosed part of the grooves 57 enables the easy formation of the key 50B.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (5)

1. Un procédé de façonnage d'une clé (40), méthode dite comprenant des moyens pour prévoir deux lames de rallonge longitudinales (55) d'une clé à blanc, jointes par une embase longitudinale (56), et de cintrer les lames (55) l'une vers l'autre de sorte à définir conjointement avec la base (56) une clé (40) à coupe transversale généralement en forme de "U", qui se caractérise en ce que la clé à blanc (50A) est, initialement, avec coupe transversale généralement en forme de "V" pour définir les lames transversalement con- vergeantes, et un profile (45) de clé est taillé dans au moins une des lames (55) en forme de "V" pour obtenir au moins une encoche se prolongeant vers l'intérieur à partir du bord longitudinal des lames avant que lesdites lames (55) soient pliées davantage l'une vers l'autre pour obtenir ladite clé (40) de section transversale généralement en forme de "U".
2. Le procédé d'après Revendication 1 se caractérise de plus par l'inclusion de moyens pour prévoir deux rainures (57) dans ladite clé en blanc, lesquelles rainures (57) s'étendent substantielie- ment dans le sens longitudinal de la clé en blanc, lesdites rainures (57) étant placées au joint des lames (55) avec l'embase (56) de sorte à faciliter le cintrage de la clé en blanc (50A) en forme de "U" sur la coupe transversale.
3. Le procédé d'après Revendication 1 se caractérise en ce que la clé en blanc (50A) est une clé en blanc intermédiaire (50A) formée d'une pièce en blanc primaire (50).
4. Le procédé d'après Revendication 3 dans lequel ladite clé en blanc (50) est de configuration planaire.
5. Le procédé d'après Revendication 4 se caractérise par l'inclusion du moyen de formage de ladite pièce en blanc avec deux rainures longitudinales sur lesquelles ladite clé en blanc (50) est pliée pour former une configuration généralement en forme de "V", avec les deux rainures placées au joint des lames (55) avec l'embase (56).
EP19820301669 1981-03-30 1982-03-30 Procédé de façonnage d'une clé Expired EP0063428B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82301669T ATE17881T1 (de) 1981-03-30 1982-03-30 Verfahren zum fassonieren eines schluessels.

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AUPE820781 1981-03-30
AU82322/82A AU553441B2 (en) 1981-03-30 1981-03-30 Cylinder lock
AU8207/81 1981-03-30
AU9648/81 1981-07-08
AUPE964881 1981-07-08

Publications (3)

Publication Number Publication Date
EP0063428A2 EP0063428A2 (fr) 1982-10-27
EP0063428A3 EP0063428A3 (en) 1983-04-13
EP0063428B1 true EP0063428B1 (fr) 1986-02-05

Family

ID=27156479

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19820301668 Expired EP0065813B1 (fr) 1981-03-30 1982-03-30 Serrure cylindrique
EP19820301669 Expired EP0063428B1 (fr) 1981-03-30 1982-03-30 Procédé de façonnage d'une clé

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19820301668 Expired EP0065813B1 (fr) 1981-03-30 1982-03-30 Serrure cylindrique

Country Status (1)

Country Link
EP (2) EP0065813B1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ206292A (en) * 1982-11-23 1986-07-11 M E F Strassmeir Cylinder lock assembly:individual locking pins arranged in one or more rows engage adjacent row of tumbler pins transverse to longitudinal axis of tumbler pins
IT1208841B (it) * 1985-12-19 1989-07-10 Rielda Serrature Srl Serratura a cilindro con chiave intercambiabile
SE455801B (sv) * 1986-01-31 1988-08-08 Widen Innovation Ab Nyckelblad samt sett att framstella dylikt
SE459432B (sv) * 1986-01-31 1989-07-03 Widen Innovation Ab Cylinderlaas samt tillhaallare och nyckelblad foer anvaendning i kombination med detta
DE4337201C2 (de) * 1993-10-30 1995-11-09 Michael Burde Zylinderflachschlüssel
DE29506683U1 (de) * 1995-04-19 1995-06-14 Burde, Michael, 52066 Aachen Schlüsselkopierfräsmaschine und Zylinderflachschlüssel
TW303903U (en) * 1996-04-22 1997-04-21 xian-cai Liao Lock
WO2008014536A1 (fr) * 2006-08-03 2008-02-07 Watts Hardware Manufacturing Pty Ltd Améliorations apportées à des éléments et quincaillerie
EP3095931B1 (fr) * 2015-05-22 2019-10-09 BKS GmbH Cylindre de fermeture et système de fermeture doté d'un tel cylindre de fermeture

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE337838C (de) * 1919-05-08 1921-06-08 August Broeggelhoff Jr Mit mehreren Zuhaltungsstiften versehenes Stechsicherheitsschloss
DE1428504A1 (de) * 1964-05-29 1969-03-13 Alois Crepinsek Zylinderschloss
US3499302A (en) * 1967-03-01 1970-03-10 Roy C Spain Cylinder lock
US3722240A (en) * 1971-01-25 1973-03-27 R C Spain Cylinder lock
US3736780A (en) * 1971-04-28 1973-06-05 M Singer Device for altering lock cylinder to receive a new key
US3754422A (en) * 1972-06-26 1973-08-28 American Locker Co Cylinder lock and u-shaped key and method of forming same
CH544868A (de) * 1972-08-28 1973-11-30 Owen Neale Charles Zylinderschloss mit Schlüssel
US3968668A (en) * 1973-08-15 1976-07-13 Norman Lock Co. Pickproof cylinder lock
US4099398A (en) * 1974-04-18 1978-07-11 Societe Neiman Sa Lock key, method for its manufacture and lock employing this key
GB1517704A (en) * 1975-11-21 1978-07-12 Lock Co N Pick-proof locking mechanisms
DE2924990B1 (de) * 1979-06-21 1980-07-10 Karrenberg Fa Wilhelm Zylinderschloss mit Flachschluessel
SE422480B (sv) * 1979-07-10 1982-03-08 Gkn Stenman Ab Cylinderlas nyckel till detta samt sett att tillverka nyckeln

Also Published As

Publication number Publication date
EP0063428A3 (en) 1983-04-13
EP0065813A2 (fr) 1982-12-01
EP0065813A3 (en) 1983-04-13
EP0063428A2 (fr) 1982-10-27
EP0065813B1 (fr) 1986-08-27

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