EP0546912B1 - Indented key, especially for lock or motor vehicle theft protection - Google Patents

Indented key, especially for lock or motor vehicle theft protection Download PDF

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Publication number
EP0546912B1
EP0546912B1 EP19920403305 EP92403305A EP0546912B1 EP 0546912 B1 EP0546912 B1 EP 0546912B1 EP 19920403305 EP19920403305 EP 19920403305 EP 92403305 A EP92403305 A EP 92403305A EP 0546912 B1 EP0546912 B1 EP 0546912B1
Authority
EP
European Patent Office
Prior art keywords
key
profile
key body
aperture
symmetrical
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 - Lifetime
Application number
EP19920403305
Other languages
German (de)
French (fr)
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EP0546912A1 (en
Inventor
Daniel Hagry
Michel Jouffroy
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.)
Antivols Simplex SA
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Antivols Simplex SA
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Filing date
Publication date
Application filed by Antivols Simplex SA filed Critical Antivols Simplex SA
Publication of EP0546912A1 publication Critical patent/EP0546912A1/en
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Publication of EP0546912B1 publication Critical patent/EP0546912B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00Keys; Accessories therefor

Definitions

  • the present invention relates generally to a toothed key such as that used in locks or anti-theft devices for motor vehicles.
  • Such a key is represented for example in document DE-B-25 16 340.
  • the present invention relates more particularly to keys whose teeth are formed on the lateral faces of a plate constituting the key rod so that the teeth obtained do not touch the outer edges of the plate, this in order to avoid sharp edges which can be unpleasant to the touch by the user, or even damage the user's pockets.
  • Such teeth are generally obtained by milling the lateral faces of the plate, which requires specialized machines performing complex and delicate operations, hence a high cost for the entire key.
  • a toothed key in particular for a lock or anti-theft device for a motor vehicle, comprising a key body in which is formed an opening for receiving a key profile provided with two series of stepped notches constituting the toothing of the key, characterized in that the key profile consists of a core horizontal connecting to two vertical wings at the ends of which are arranged the series of stepped notches, said vertical wings being symmetrical and offset with respect to the longitudinal axis of the key profile and in that the key body comprises lateral faces on which Are provided, at the opening, symmetrical recesses with respect to the longitudinal axis of the key body, said recesses serving to accommodate the wings carrying the series of stepped notches.
  • the stepped notches are no longer obtained by a milling operation but by a turning operation which is much faster and requires less complex and therefore less expensive machines.
  • FIGS. 1 to 4 and 7 illustrate a key body 10 consisting of a plate of generally parallelepiped shape.
  • the rear end 12 of the plate located on the right in FIGS. 1,4 and 7, is full and intended to be connected to a key head (not shown) for example by riveting or overmolding.
  • the front end 14 of the plate located on the left in the same figures, is bevelled so as to facilitate the introduction of the key into the barrel, for example of the lock, with which it is intended to cooperate.
  • the key body 10 comprises, along its longitudinal axis X-X, an opening 16 generally in the shape of a T, the branches 18 of the T being situated on the rear end side 12.
  • the key body 10 has lateral faces 20,22 on which recesses 24,26 respectively are provided.
  • recesses 24, 26 are located on the front part of the key (on the left in the figures).
  • the recess 24 is located in the lower part of the key body 10 and opens into the opening 16, while the recess 26 is located in the upper part of the key body 10 and also opens into the opening 16, otherwise says the recesses 24 and 26 are symmetrical with respect to the axis XX.
  • the key body 10 comprises, on each of its lateral faces 20, 22, a longitudinal groove respectively 28.30 eccentric with respect to the axis XX and symmetrical with respect to said axis as can be see it in particular in Figure 3.
  • Each longitudinal groove 28.30 opens out, on the one hand, on the front end 14, and, on the other hand, in the opening 16. It will be noted that one of the longitudinal faces 28 ', 30' of each grooves 28.30 is in extension with one of the longitudinal faces 32.34 of the opening 16.
  • FIGS. 5, 6 and 7 illustrate a key profile 40.
  • the section of the key profile 40 is constituted by a horizontal core 42 connecting to two vertical wings 44,46 symmetrical with respect to the axis Y-Y.
  • the wings 44,46 have internal faces 58,60 respectively which are coplanar, that is to say that they extend along the same vertical axis on either side of the core 42.
  • the vertical wings 44,46 comprise, on their longitudinal end face, a series of stepped notches respectively 48,48 'extending from the front end 52 over a length L corresponding to the length L of the recesses 24 and 26 of the key body 10.
  • the shape and the height of the stepped notches 48, 48 ′ are symmetrical with respect to the axis Y-Y, said stepped notches thus forming the toothing of the key.
  • the key profile section makes it possible to develop this toothing by a simple turning operation and no longer milling as for the keys of the prior art. It can thus be noted in particular (FIG. 6) that the notches 48, 48 'have in section a curved outer face 50, 50'.
  • the rear end of the key profile is in the form of a tenon 54 connected to the notches 48, 48 ′ by a groove 56.
  • the key profile 40 fitted with its notches 48, 48 ' is introduced horizontally into the opening 16 of the key body 10, then by applying a rotation movement, the internal faces 58 are applied. , 60 of the vertical wings 44, 46 respectively on the lateral faces 22, 20 of the key body 10.
  • the wings 44, 46 of the key profile carrying the series of notches 48, 48 ′ over a length L are received in the recesses 26, 24 made in the key body 10.
  • the lug 54 is provided with elastic tabs 62 which snap into the branches 18 of the opening 16 of the key body 10.
  • the final connection of the key body 10 and the key profile 40 can be carried out for example by overmolding a key head (not shown).
  • E denotes the width of the opening 16 and e the width of the grooves 28.30, the width of the core 42 of the key profile 40 will be equal to E - 2e.
  • the front end 14 of the plate can be non-bevelled and have an entry face in the lock which is vertical, similarly the pre-assembly between the key body 10 and the key profile 40 can be carried out by deformation of metal instead of latching by legs without thereby departing from the present invention as defined by the claims.

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  • Lock And Its Accessories (AREA)

Description

La présente invention concerne d'une manière générale une clé dentée telle que celle utilisée dans des serrures ou des antivols pour véhicules automobiles.The present invention relates generally to a toothed key such as that used in locks or anti-theft devices for motor vehicles.

Une telle clé est représentée par exemple dans le document DE-B-25 16 340.Such a key is represented for example in document DE-B-25 16 340.

La présente invention concerne plus particulièrement des clés dont les dentures sont ménagées sur les faces latérales d'une platine constituant la tige de clé de manière à ce que les dents obtenues ne touchent pas les bords extérieurs de la platine, ceci afin d'éviter des arêtes vives qui peuvent être désagréables au toucher par l'utilisateur, voire même abimer les poches de celui-ci.The present invention relates more particularly to keys whose teeth are formed on the lateral faces of a plate constituting the key rod so that the teeth obtained do not touch the outer edges of the plate, this in order to avoid sharp edges which can be unpleasant to the touch by the user, or even damage the user's pockets.

De telles dentures sont en général obtenues par fraisage des faces latérales de la platine, ce qui nécessite des machines spécialisées effectuant des opérations complexes et délicates d'où un coût élevé pour l'ensemble de la clé.Such teeth are generally obtained by milling the lateral faces of the plate, which requires specialized machines performing complex and delicate operations, hence a high cost for the entire key.

On a proposé, pour faciliter l'obtention de telles dentures, de réaliser l'ensemble de la clé à partir de deux platines indépendantes, usinées avec les dentures définitives et juxtaposées l'une par rapport à l'autre en ayant leurs dentures en opposition.It has been proposed, to facilitate the obtaining of such teeth, to produce the whole of the key from two independent plates, machined with the final teeth and juxtaposed one with respect to the other, having their teeth in opposition .

Si un tel concept permet éventuellement une simplification des opérations d'usinage, le coût de la clé reste prohibitif par le fait que les deux platines ainsi constituées sont d'un assemblage délicat du fait des précautions à prendre pour les apairer de manière sûre.If such a concept possibly allows a simplification of the machining operations, the cost of the key remains prohibitive by the fact that the two plates thus formed are of delicate assembly due to the precautions to be taken to pair them securely.

La présente invention résout ces problèmes et propose à cet effet une clé dentée, notamment pour serrure ou antivol de véhicule automobile, comprenant un corps de clé dans lequel est ménagée une ouverture pour recevoir un profil de clé muni de deux séries de crans étagés constituant la denture de la clé, caractérisée en ce que le profil de clé est constitué d'un noyau horizontal se raccordant à deux ailes verticales aux extrémités desquelles sont ménagées les séries de crans étagés, lesdites ailes verticales étant symétriques et décalées par rapport à l'axe longitudinal du profil de clé et en ce que le corps de clé comprend des faces latérales sur lesquelles sont ménagés, au droit de l'ouverture, des évidements symétriques par rapport à l'axe longitudinal du corps de clé, lesdits évidements servant à loger les ailes portant les séries de crans étagés.The present invention solves these problems and proposes for this purpose a toothed key, in particular for a lock or anti-theft device for a motor vehicle, comprising a key body in which is formed an opening for receiving a key profile provided with two series of stepped notches constituting the toothing of the key, characterized in that the key profile consists of a core horizontal connecting to two vertical wings at the ends of which are arranged the series of stepped notches, said vertical wings being symmetrical and offset with respect to the longitudinal axis of the key profile and in that the key body comprises lateral faces on which Are provided, at the opening, symmetrical recesses with respect to the longitudinal axis of the key body, said recesses serving to accommodate the wings carrying the series of stepped notches.

Ainsi, bien que la clé soit en deux parties, les précautions d'apairage sont annulées, puisque le profil de clé comprend la denture complète de la clé.Thus, although the key is in two parts, the pairing precautions are canceled, since the key profile includes the complete toothing of the key.

De plus, avec cette configuration, les crans étagés ne sont plus obtenus par une opération de fraisage mais par une opération de tournage qui est beaucoup plus rapide et nécessite des machines moins complexes et donc moins coûteuses.In addition, with this configuration, the stepped notches are no longer obtained by a milling operation but by a turning operation which is much faster and requires less complex and therefore less expensive machines.

Selon des caractéristiques des modes particuliers de réalisation :

  • les ailes verticales présentent des faces internes coplanaires,
  • le profil de clé comprend à l'une de ses extrémités un tenon muni de pattes coopérant par encliquetage avec une branche de l'ouverture du corps de clé.
According to characteristics of the particular embodiments:
  • the vertical wings have coplanar internal faces,
  • the key profile comprises at one of its ends a tenon provided with lugs cooperating by snap-fastening with a branch of the opening of the key body.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui va suivre en regard des dessins annexés dans lesquels :

  • la figure 1 est une vue de face d'un corps de clé selon l'invention ;
  • la figure 2 est une coupe du corps de clé selon la ligne A-A de la figure 1 ;
  • la figure 3 est une vue latérale du corps de clé suivant la flèche P de la figure 1 ;
  • la figure 4 est une vue de dessus du corps de clé
  • la figure 5 est une vue de face, à plus grande échelle, d'un profil de clé suivant l'invention ;
  • la figure 6 est une coupe du profil de clé suivant la ligne B-B de la figure 5 ;
  • la figure 7 est une vue en perspective du corps de clé et du profil de clé avant assemblage.
Other characteristics and advantages of the invention will appear on reading the description which will follow with reference to the appended drawings in which:
  • Figure 1 is a front view of a key body according to the invention;
  • Figure 2 is a section of the key body along the line AA in Figure 1;
  • Figure 3 is a side view of the key body according to arrow P in Figure 1;
  • Figure 4 is a top view of the key body
  • Figure 5 is a front view, on a larger scale, of a key profile according to the invention;
  • Figure 6 is a section of the key profile along line BB of Figure 5;
  • Figure 7 is a perspective view of the key body and the key profile before assembly.

On se réfère tout d'abord aux figures 1 à 4 et 7 qui illustrent un corps de clé 10 constitué d'une platine de forme générale parallèlépipèdique.Reference is first made to FIGS. 1 to 4 and 7 which illustrate a key body 10 consisting of a plate of generally parallelepiped shape.

L'extrémité arrière 12 de la platine, située à droite sur les figures 1,4 et 7, est pleine et destinée à être reliée à une tête de clé (non représentée) par exemple par rivetage ou surmoulage.The rear end 12 of the plate, located on the right in FIGS. 1,4 and 7, is full and intended to be connected to a key head (not shown) for example by riveting or overmolding.

L'extrémité avant 14 de la platine, située à gauche sur les mêmes figures, est biseautée de manière à faciliter l'introduction de la clé dans le barillet, par exemple de la serrure, avec laquelle elle est destinée à coopérer.The front end 14 of the plate, located on the left in the same figures, is bevelled so as to facilitate the introduction of the key into the barrel, for example of the lock, with which it is intended to cooperate.

Le corps de clé 10 comporte, suivant son axe longitudinal X-X, une ouverture 16 globalement en forme de T, les branches 18 du T se situant côté extrémité arrière 12.The key body 10 comprises, along its longitudinal axis X-X, an opening 16 generally in the shape of a T, the branches 18 of the T being situated on the rear end side 12.

Le corps de clé 10 présente des faces latérales 20,22 sur lesquelles on ménage des évidements respectivement 24,26.The key body 10 has lateral faces 20,22 on which recesses 24,26 respectively are provided.

Ces évidements 24,26 se situent sur la partie avant de la clé (à gauche sur les figures). L'évidement 24 se situe dans la partie basse du corps de clé 10 et débouche dans l'ouverture 16, tandis que l'évidement 26 se situe dans la partie haute du corps de clé 10 et débouche également dans l'ouverture 16, autrement dit les évidements 24 et 26 sont symétriques par rapport à l'axe X-X.These recesses 24, 26 are located on the front part of the key (on the left in the figures). The recess 24 is located in the lower part of the key body 10 and opens into the opening 16, while the recess 26 is located in the upper part of the key body 10 and also opens into the opening 16, otherwise says the recesses 24 and 26 are symmetrical with respect to the axis XX.

Sur l'extrémité avant 14, le corps de clé 10 comporte, sur chacune de ses faces latérales 20,22, une rainure longitudinale respectivement 28,30 excentrée par rapport à l'axe X-X et symétrique par rapport audit axe ainsi qu'on peut le voir en particulier sur la figure 3.On the front end 14, the key body 10 comprises, on each of its lateral faces 20, 22, a longitudinal groove respectively 28.30 eccentric with respect to the axis XX and symmetrical with respect to said axis as can be see it in particular in Figure 3.

Chaque rainure longitudinale 28,30 est débouchante, d'une part, sur l'extrémité avant 14, et, d'autre part, dans l'ouverture 16. On remarquera que l'une des faces longitudinales 28',30' de chacune des rainures 28,30 est en prolongement avec l'une des faces longitudinales 32,34 de l'ouverture 16.Each longitudinal groove 28.30 opens out, on the one hand, on the front end 14, and, on the other hand, in the opening 16. It will be noted that one of the longitudinal faces 28 ', 30' of each grooves 28.30 is in extension with one of the longitudinal faces 32.34 of the opening 16.

On se réfère maintenant aux figures 5,6 et 7 qui illustrent un profil de clé 40.Reference is now made to FIGS. 5, 6 and 7 which illustrate a key profile 40.

Ainsi qu'on peut le voir en particulier sur les figures 6 et 7, la section du profil de clé 40 est constituée par un noyau horizontal 42 se raccordant à deux ailes verticales 44,46 symétriques par rapport à l'axe Y-Y.As can be seen in particular in Figures 6 and 7, the section of the key profile 40 is constituted by a horizontal core 42 connecting to two vertical wings 44,46 symmetrical with respect to the axis Y-Y.

Les ailes 44,46 présentent des faces internes respectivement 58,60 qui sont coplanaires, c'est-à-dire qu'elles s'étendent suivant un même axe vertical de part et d'autre du noyau 42.The wings 44,46 have internal faces 58,60 respectively which are coplanar, that is to say that they extend along the same vertical axis on either side of the core 42.

Les ailes verticales 44,46 comportent, sur leur face d'extrémité longitudinale, une série de crans étagés respectivement 48,48' s'étendant à partir de l'extrémité avant 52 sur une longueur L correspondant à la longueur L des évidements 24 et 26 du corps de clé 10.The vertical wings 44,46 comprise, on their longitudinal end face, a series of stepped notches respectively 48,48 'extending from the front end 52 over a length L corresponding to the length L of the recesses 24 and 26 of the key body 10.

Dans l'exemple représenté, la forme et la hauteur des crans étagés 48,48' sont symétriques par rapport à l'axe Y-Y, lesdits crans étagés formant ainsi la denture de clé.In the example shown, the shape and the height of the stepped notches 48, 48 ′ are symmetrical with respect to the axis Y-Y, said stepped notches thus forming the toothing of the key.

La section du profil de clé permet d'élaborer cette denture par une simple opération de tournage et non plus de fraisage comme pour les clés de l'art antérieur. On peut noter ainsi en particulier (figure 6) que les crans 48,48' présentent en section une face extérieure courbe 50,50'.The key profile section makes it possible to develop this toothing by a simple turning operation and no longer milling as for the keys of the prior art. It can thus be noted in particular (FIG. 6) that the notches 48, 48 'have in section a curved outer face 50, 50'.

L'extrémité arrière du profil de clé se présente sous la forme d'un tenon 54 raccordé aux crans 48,48' par une gorge 56.The rear end of the key profile is in the form of a tenon 54 connected to the notches 48, 48 ′ by a groove 56.

Pour former la clé, on introduit par exemple à l'horizontale le profil de clé 40 muni de ses crans 48,48' dans l'ouverture 16 du corps de clé 10, puis par un mouvement de rotation, on applique les faces internes 58,60 des ailes verticales 44,46 respectivement sur les faces latérales 22,20 du corps de clé 10.To form the key, for example, the key profile 40 fitted with its notches 48, 48 'is introduced horizontally into the opening 16 of the key body 10, then by applying a rotation movement, the internal faces 58 are applied. , 60 of the vertical wings 44, 46 respectively on the lateral faces 22, 20 of the key body 10.

Autrement dit, les ailes 44,46 du profil de clé portant les séries de crans 48,48' sur une longueur L viennent se loger dans les évidements 26,24 ménagés dans le corps de clé 10.In other words, the wings 44, 46 of the key profile carrying the series of notches 48, 48 ′ over a length L are received in the recesses 26, 24 made in the key body 10.

Afin d'effectuer un pré-assemblage du corps de clé 10 avec le profil de clé 40, le tenon 54 est muni de pattes élastiques 62 s'encliquetant dans les branches 18 de l'ouverture 16 du corps de clé 10.In order to pre-assemble the key body 10 with the key profile 40, the lug 54 is provided with elastic tabs 62 which snap into the branches 18 of the opening 16 of the key body 10.

La solidarisation définitive du corps de clé 10 et du profil de clé 40 peut s'effectuer par exemple par surmoulage d'une tête de clé (non représentée).The final connection of the key body 10 and the key profile 40 can be carried out for example by overmolding a key head (not shown).

Si on désigne par E la largeur de l'ouverture 16 et par e la largeur des rainures 28,30, la largeur du noyau 42 du profil de clé 40 sera égale à E - 2e.If E denotes the width of the opening 16 and e the width of the grooves 28.30, the width of the core 42 of the key profile 40 will be equal to E - 2e.

Par cette relation dimensionnelle, on réalise au droit de l'ouverture 16 un prolongement des rainures 28 et 30, l'ensemble constituant les rainures de guidage pour l'introduction de la clé dans le barillet.By this dimensional relationship, there is provided at the opening 16 an extension of the grooves 28 and 30, the assembly constituting the guide grooves for the introduction of the key into the barrel.

L'extrémité avant 14 de la platine peut être non biseautée et présenter une face d'entrée dans la serrure qui est verticale, de même le pré-assemblage entre le corps de clé 10 et le profil de clé 40 peut s'effectuer par déformation de métal au lieu d'encliquetage par pattes sans pour cela sortir de la présente invention telle que définie par les revendications.The front end 14 of the plate can be non-bevelled and have an entry face in the lock which is vertical, similarly the pre-assembly between the key body 10 and the key profile 40 can be carried out by deformation of metal instead of latching by legs without thereby departing from the present invention as defined by the claims.

Claims (6)

  1. A toothed key, in particular for a lock or anti-theft device for a motor vehicle, comprising a key body (10) in which an aperture (16) is formed for receiving a key profile (40) having two series of stepped lands (48, 48') constituting the tooth set of the key, characterised in that the key profile (40) comprises a horizontal core portion (42) which is joined to two vertical wing portions (44, 46), at the ends of which the series of stepped lands (48, 48') are formed, the said vertical wing portions (44, 46) being symmetrical and being offset with respect to the longitudinal axis (Y-Y) of the key profile (40), and in that the key body (10) has lateral faces (20, 22) on which are formed, along the aperture (16), rebates (24, 26) which are symmetrical with respect to the longitudinal axis (X-X) of the key body (10), with the said apertures (24, 26) accommodating the wing portions (44, 46) that carry the series of stepped lands (48, 48').
  2. A key according to Claim 1, characterised in that the vertical wing portions (44, 46) have coplanar internal faces (58, 60).
  3. A key according to either one of the preceding Claims, characterised in that the key profile (40) comprises, at one of its ends, a tenon (54) having lugs (62) cooperating with a branch (18) of the aperture (16) in the key body (10) in snap-fitting relationship.
  4. A key according to any one of the preceding Claims, characterised in that the key body (10) has at one of its ends (14) two grooves (28, 30), which are symmetrical with respect to the axis (X-X) of the key body (10), and of which one of the longitudinal faces (28', 30') is an extension of the longitudinal faces (32, 34) of the aperture (16).
  5. A key according to any one of the preceding Claims, characterised in that the core portion (42) of the key profile (40) has a width which is equal to the width (E) of the aperture (16) less twice the width (e) of the grooves (28, 30).
  6. A key according to any one of the preceding Claims, characterised in that the outer face (50, 50') of the stepped lands (48, 48') is a curved surface.
EP19920403305 1991-12-09 1992-12-07 Indented key, especially for lock or motor vehicle theft protection Expired - Lifetime EP0546912B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115220 1991-12-09
FR9115220A FR2684713B1 (en) 1991-12-09 1991-12-09 TOOTHED WRENCH, ESPECIALLY FOR A MOTOR VEHICLE LOCK OR ANTI-THEFT DEVICE.

Publications (2)

Publication Number Publication Date
EP0546912A1 EP0546912A1 (en) 1993-06-16
EP0546912B1 true EP0546912B1 (en) 1995-08-09

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Application Number Title Priority Date Filing Date
EP19920403305 Expired - Lifetime EP0546912B1 (en) 1991-12-09 1992-12-07 Indented key, especially for lock or motor vehicle theft protection

Country Status (4)

Country Link
EP (1) EP0546912B1 (en)
DE (1) DE69204035T2 (en)
ES (1) ES2079162T3 (en)
FR (1) FR2684713B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1057951T3 (en) * 1999-05-08 2002-09-16 Schulte Zylinderschl Gmbh Locking device, consisting of lock cylinder and associated key
DE102006000123A1 (en) * 2006-03-17 2007-09-20 Aug. Winkhaus Gmbh & Co. Kg Key for a lock cylinder
DE102010029167B4 (en) * 2010-05-20 2012-03-01 Bks Gmbh Profile cylinder key

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2268140B1 (en) * 1974-04-18 1978-05-12 Neiman Sa
US4325243A (en) * 1978-09-08 1982-04-20 Aisin Seiki Company, Limited Key holder
DE8502136U1 (en) * 1984-03-30 1985-04-25 Jäkel, geb. Hartenstein, Brigitte, Dr. rer. nat., 7408 Kusterdingen KEY

Also Published As

Publication number Publication date
FR2684713B1 (en) 1995-10-13
ES2079162T3 (en) 1996-01-01
FR2684713A1 (en) 1993-06-11
EP0546912A1 (en) 1993-06-16
DE69204035D1 (en) 1995-09-14
DE69204035T2 (en) 1996-01-11

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