EP0713945B1 - Combination lock for preventing the actuation of a bolt - Google Patents

Combination lock for preventing the actuation of a bolt Download PDF

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Publication number
EP0713945B1
EP0713945B1 EP94440078A EP94440078A EP0713945B1 EP 0713945 B1 EP0713945 B1 EP 0713945B1 EP 94440078 A EP94440078 A EP 94440078A EP 94440078 A EP94440078 A EP 94440078A EP 0713945 B1 EP0713945 B1 EP 0713945B1
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EP
European Patent Office
Prior art keywords
spindle
notch
toothed
pivot
plate
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
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EP94440078A
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German (de)
French (fr)
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EP0713945A1 (en
Inventor
Christian Provost
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BARAT SA
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BARAT SA
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Publication date
Application filed by BARAT SA filed Critical BARAT SA
Priority to DE69417040T priority Critical patent/DE69417040T2/en
Priority to AT94440078T priority patent/ATE177501T1/en
Priority to EP94440078A priority patent/EP0713945B1/en
Publication of EP0713945A1 publication Critical patent/EP0713945A1/en
Application granted granted Critical
Publication of EP0713945B1 publication Critical patent/EP0713945B1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks

Definitions

  • the present invention relates to a device combination lock to prevent maneuvering of a bolt.
  • Document FR-A-2 436 237 describes a device for secret suit, comprising at least two guns concentric pivotally mounted on the same axis and bearing each a toothed pinion which drives a notched crown at means of at least one stud integral with said crown, which engages in the interval between two teeth of the pinion, each of the notched crowns comprising a radial notch which, when it is in the axis of a locking piece associated with the bolt of the lock, allows it has to go back to its erased position.
  • this type of device is of a complex design and relatively cost price high, and also has the disadvantage that the system is difficult to disengage to enter the code for the combination.
  • Document DE-C-351185 describes a lock combination which includes, mounted on an axis of maneuvering in free rotation, three ratchet wheels which mesh with three other cogwheels each provided a notch in their central opening, the alignment of three notches for pivoting actuation of a locking plate connected to the bolt, by rotation of the cogwheels driven by ratchet wheels, which may or may not be rotated by a training finger housed in the operating axis and likely to get out, the locking of the ratchet wheels on the operating axis being a function of the combination planned.
  • the device further comprises a wheel auxiliary placed next to the three ratchet wheels and likely to cooperate with the training finger to prevent the existence of double positions likely to lead to the unexpected opening of the lock.
  • a wheel auxiliary placed next to the three ratchet wheels and likely to cooperate with the training finger to prevent the existence of double positions likely to lead to the unexpected opening of the lock.
  • this auxiliary wheel complicates construction of the lock.
  • the present invention aims to provide an alternative construction of the drive finger and toothed wheels.
  • the device according to the invention comprises, same as the device described in document DE-C-351185, on the one hand, a freely rotating maneuvering axis, having a longitudinal groove in which is placed a coupling finger capable of pivoting and, under the effect of a spring, to be extracted from said groove, said axis being introduced in the first three linked cogwheels of which one, end, is always rotated with the axis, to which the other two are joined or not, depending on whether or not said coupling finger is in position protruding; on the other hand a pivot parallel to the axis of operation, comprising a longitudinal slot and diametral, on which three second wheels are mounted toothed meshes each on a gear wheel of the axis of maneuvering, said second gear wheels comprising each, practiced peripherally and radially in their central opening, a notch able to be placed during the rotation of said second toothed wheels on said pivot, in look at the diametral slot of the latter, in order to allow pivoting around an axis
  • the device according to the invention differs from the prior art by the characteristics defined in the characterizing part of claim 1.
  • the positioning of the wheels teeth of the operating axis is indexed by means of ratchets, and a tooth of the extreme toothable wheel via the coupling finger to the axis of maneuvering includes a notch capable of engaging in a notch in the ratchet which corresponds to it, in view of the blocking in a direction of rotation of said wheel toothed.
  • the pivot is integral a pivotally mounted plate on the pivot axis of the condemnation plate.
  • the operation of the bolt is authorized by the tilting of the locking plate which is not possible only when the notches of the pivot gear wheels are all opposite the latter's slot, in order to allow the projecting part of said plate, trapped in said slot, to disengage from it.
  • the device according to the invention comprises a series of three toothed wheels 1, 2 and 3 mounted on a maneuvering axis 4, attached to a series of three other toothed wheels 1 ', 2' and 3 ′ which mesh on the gear wheels 1 respectively, 2 and 3, and are mounted on a pivot 70 secured to a plate 7 pivotally mounted on an axis 50 integral with a base plate 5 and recalled by a torsion spring 72 threaded on axis 50, to allow meshing.
  • the pivot 70 has a diametrical slot 71 into which is inserted the protruding part 60, folded right angle, of a locking plate 6 pivotally mounted on pivot 50.
  • the 10 ', 20' and 30 'openings of the gear wheels 1 ', 2' and 3 ', through which the pivot 70 passes, are extended each of a notch, respectively 11 ', 21' and 31 ', of which the comparison with the slot 71 of the pivot 70 authorizes the pivoting of the locking plate 6, which is secured to the bolt, not shown, the pivoting of the locking plate 6 thus allowing maneuvering of the last.
  • the operating axis 4 has a groove longitudinal 40 in which can pivot, about an axis diametral 41, whether or not to extract from the groove 40 under the action of a spring 80, a coupling finger 8 which will be described in more detail below.
  • the toothed wheel 3 is secured to the axis of operation 4 via a notch 30, also visible in Figure 3c, which fits into the groove 40 of axis 4.
  • the gear wheels 1, 2 and 3 are associated with ratchets 12, 22, 32 respectively, recalled by springs not shown, allowing to index the positions of wheels.
  • the coupling finger 8 comprises, from its free end at its pivotally mounted end, a part 82 having two parallel faces 820 and 821 surmounted by a longitudinal bevel 83, then a portion 84 having two parallel faces 840 and 841 extending the faces respectively 820 and 821, surmounted by a bevel longitudinal 85 whose inclination is opposite to that of bevel 83, and which has an upper edge 842, and a lower edge 850 located in the extension of the edge upper 830 of bevel 83.
  • the lengths of parts 82 and 84 are approximately equal to the thickness of the gear wheels 1 and 2, the part 82 being intended to drive the toothed wheel 1 and the part 84 to drive the toothed wheel 2.
  • the notch 21 has an approximate flattened M shape, presenting a share two radial sides 24 and 25 whose extensions pass through the tops of two teeth 23 separated by a other, and on the other hand two oblique sides 26 and 27 whose junction forms an edge 28 substantially halfway up notch 21.
  • the starting position is defined as that of blocking, in a notch 130 formed in a tooth 13 of the wheel 1, of the ratchet 12 which is associated therewith, and which comprises a notch 120, susceptible, when the axis of maneuver 4 turns in direction R, to come to rest in notch 130.
  • a rotation of a notch in the S direction allows the drive, in addition to the gear 3 which is always driven, the toothed wheel 1, through the face 821 of the coupling finger 8 which abuts against the side 14 of the notch 11, while the gear 2 is not driven because the bevel 85 then runs along the oblique side 27 and the upper edge 842 of finger 8 passes the edge 28 of notch 21 without clinging to it, which has the effect of partially insert the coupling finger 8 into throat 40, but not enough to prevent its face 821 to abut on the side 14 of the notch 11 of the gear 1.
  • part 84 of finger 8 moves in notch 21 without turning the wheel gear 2, and the part 82 does not hook the gear 1 which no longer turns, the wheel 3 only turning.
  • the part 84 By extending the rotation one step or more, the part 84, due to the semi-lowered position of the finger coupling 8, attack the lower edge of side 24 of the notch 21 by the bevel 85, which has the effect to fully lower the coupling finger 8 of which the edge 842 bears against the internal wall 29 of the gear 2, which is therefore no longer driven and which does not turns more, blocked by its ratchet 22, the wheel 3 alone turning.
  • the base plate 5 is crossed by an axis 51, suitable for rotate in it, this rotation being limited to one quarter turn due to the semi-cylindrical shape of the end 52 of this axis 51, which is engaged in a orifice 90 in three quarter of a round made in the plate upper 9, the axis 51 also comprising a slot transverse 53 in which the plate 7 is engaged.
  • the lock according to the invention can also include a device to scramble the combination with the closing of the bolt, in case the user would forget to do so, this device being able to consist of a plate connected to the bolt, which comes, during the moving it, rotate the gear wheel 2 by minus a notch.

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  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Braking Arrangements (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

The combination lock comprises a freely rotating operating spindle (4) having a longitudinal groove (40). A coupling finger (8) in the groove (8) is able to pivot and be extracted from it. The spindle is introduced into three toothed wheels (1-3) placed side by side, the end wheel being fixed to the spindle. A pivot (70), parallel to the operating spindle, has a longitudinal diametral slot (71) on which are mounted three second toothed wheels (1'-3') each meshing with a toothed wheel of the first set. The second set of wheels each have radially on their internal periphery, a notch (11',21',31').

Description

La présente invention a pour objet un dispositif de serrure à combinaison destiné à empêcher le manoeuvrement d'un pêne.The present invention relates to a device combination lock to prevent maneuvering of a bolt.

On connaít déjà des dispositifs à secret destinés à renforcer la sécurité d'une serrure, car nécessitant non seulement d'être en possession de la clé correspondante, mais encore de connaítre une combinaison de nombres indispensable pour l'actionner.We already know secret devices intended to reinforce the security of a lock, because not only requiring possession of the key corresponding, but still to know a combination of numbers essential to activate it.

Le document FR-A-2 436 237 décrit un dispositif de combinaison à secret, comprenant au moins deux canons concentriques montés pivotants sur un même axe et portant chacun un pignon denté qui entraíne une couronne crantée au moyen d'au moins un téton solidaire de ladite couronne, lequel vient s'engager dans l'intervalle entre deux dents du pignon, chacune des couronnes crantées comprenant une encoche radiale qui, lorsqu'elle se trouve dans l'axe d'une pièce de verrouillage associée au pêne de la serrure, permet à celui-ci de revenir en arrière dans sa position effacée.Document FR-A-2 436 237 describes a device for secret suit, comprising at least two guns concentric pivotally mounted on the same axis and bearing each a toothed pinion which drives a notched crown at means of at least one stud integral with said crown, which engages in the interval between two teeth of the pinion, each of the notched crowns comprising a radial notch which, when it is in the axis of a locking piece associated with the bolt of the lock, allows it has to go back to its erased position.

Toutefois ce type de dispositif est d'une conception complexe et d'un prix de revient relativement élevé, et présente en outre l'inconvénient que le système est difficile à débrayer pour entrer le code de la combinaison.However, this type of device is of a complex design and relatively cost price high, and also has the disadvantage that the system is difficult to disengage to enter the code for the combination.

On connaít également d'autres types de dispositifs de serrure à secret d'un plus faible prix de revient, qui permettent une introduction facile de la combinaison.We also know other types of lower price secret lock devices returns, which allow easy introduction of the combination.

Ainsi le document DE-C-351185 décrit une serrure à combinaison qui comprend, montées sur un axe de manoeuvrement en libre rotation, trois roues à rochet qui s'engrènent avec trois autres roues dentées munies chacune d'une encoche dans leur ouverture centrale, l'alignement des trois encoches permettant d'actionner en pivotement une plaque de condamnation reliée au pêne, par rotation des roues dentées entraínées par les roues à rochet, lesquelles sont susceptibles d'être ou non entraínées en rotation par un doigt d'entraínement logé dans l'axe de manoeuvrement et susceptible de s'en extraire, le blocage des roues à rochet sur l'axe de manoeuvrement étant fonction de la combinaison prévue.Document DE-C-351185 describes a lock combination which includes, mounted on an axis of maneuvering in free rotation, three ratchet wheels which mesh with three other cogwheels each provided a notch in their central opening, the alignment of three notches for pivoting actuation of a locking plate connected to the bolt, by rotation of the cogwheels driven by ratchet wheels, which may or may not be rotated by a training finger housed in the operating axis and likely to get out, the locking of the ratchet wheels on the operating axis being a function of the combination planned.

Le dispositif comporte en outre une roue auxiliaire disposée à côté des trois roues à rochet et susceptible de coopérer avec le doigt d'entraínement pour empêcher l'existence de doubles positions susceptibles de conduire à l'ouverture inopinée de la serrure. Toutefois la présence de cette roue auxiliaire complique la construction de la serrure.The device further comprises a wheel auxiliary placed next to the three ratchet wheels and likely to cooperate with the training finger to prevent the existence of double positions likely to lead to the unexpected opening of the lock. However the presence of this auxiliary wheel complicates construction of the lock.

La présente invention a pour but de proposer une construction alternative du doigt d'entraínement et des roues dentées.The present invention aims to provide an alternative construction of the drive finger and toothed wheels.

Le dispositif selon l'invention comprend, de même que le dispositif décrit dans le document DE-C-351185, d'une part un axe de manoeuvrement en libre rotation, présentant une gorge longitudinale dans laquelle est placé un doigt d'accouplement apte à pivoter et, sous l'effet d'un ressort, à s'extraire de ladite gorge, ledit axe étant introduit dans trois premières roues dentées accolées dont l'une, d'extrémité, est toujours entraínée en rotation avec l'axe, auquel les deux autres sont solidarisées ou non, selon que ledit doigt d'accouplement est ou non en position saillante ; d'autre part un pivot parallèle à l'axe de manoeuvrement, comportant une fente longitudinale et diamétrale, sur lequel sont montées trois secondes roues dentées s'engrénant chacune sur une roue dentée de l'axe de manoeuvrement, lesdites secondes roues dentées comportant chacune, pratiquée périphériquement et radialement dans leur ouverture centrale, une encoche apte à se placer, lors de la rotation desdites secondes roues dentées sur ledit pivot, en regard de la fente diamétrale de ce dernier, afin de permettre le pivotement, autour d'un axe parallèle à l'axe de manoeuvrement et au pivot, d'une plaque de condamnation reliée au pêne, munie d'une partie saillante qui lui est perpendiculaire et qui est emprisonnée dans ladite fente lorsque celle-ci n'est pas en regard de toutes les encoches desdites secondes roues dentées. The device according to the invention comprises, same as the device described in document DE-C-351185, on the one hand, a freely rotating maneuvering axis, having a longitudinal groove in which is placed a coupling finger capable of pivoting and, under the effect of a spring, to be extracted from said groove, said axis being introduced in the first three linked cogwheels of which one, end, is always rotated with the axis, to which the other two are joined or not, depending on whether or not said coupling finger is in position protruding; on the other hand a pivot parallel to the axis of operation, comprising a longitudinal slot and diametral, on which three second wheels are mounted toothed meshes each on a gear wheel of the axis of maneuvering, said second gear wheels comprising each, practiced peripherally and radially in their central opening, a notch able to be placed during the rotation of said second toothed wheels on said pivot, in look at the diametral slot of the latter, in order to allow pivoting around an axis parallel to the axis operating and pivoting, a locking plate connected to the bolt, provided with a projecting part which is perpendicular and which is trapped in said slot when this is not opposite all the notches said second gears.

Le dispositif selon l'invention se différencie de l'état de la technique par les caractéristiques définies dans la partie caractérisante de la revendication 1.The device according to the invention differs from the prior art by the characteristics defined in the characterizing part of claim 1.

Selon une caractéristique additionnelle du dispositif selon l'invention le positionnement des roues dentées de l'axe de manoeuvrement est indexé au moyen de rochets, et une dent de la roue dentée extrême solidarisable par l'intermédiaire du doigt d'accouplement à l'axe de manoeuvrement comporte un cran susceptible de s'engager dans une encoche ménagée dans le rochet qui lui correspond, en vue du blocage dans un sens de rotation de ladite roue dentée.According to an additional characteristic of the device according to the invention the positioning of the wheels teeth of the operating axis is indexed by means of ratchets, and a tooth of the extreme toothable wheel via the coupling finger to the axis of maneuvering includes a notch capable of engaging in a notch in the ratchet which corresponds to it, in view of the blocking in a direction of rotation of said wheel toothed.

Selon une autre caractéristique additionnelle du dispositif selon l'invention, le pivot est solidaire d'une plaque montée pivotante sur l'axe de pivotement de la plaque de condamnation.According to another additional characteristic of the device according to the invention, the pivot is integral a pivotally mounted plate on the pivot axis of the condemnation plate.

Le manoeuvrement du pêne est autorisé par le basculement de la plaque de condamnation qui n'est possible que lorsque les encoches des roues dentées du pivot sont toutes en regard de la fente de ce dernier, afin de permettre à la partie saillante de ladite plaque, prisonnière de ladite fente, de s'en dégager.The operation of the bolt is authorized by the tilting of the locking plate which is not possible only when the notches of the pivot gear wheels are all opposite the latter's slot, in order to allow the projecting part of said plate, trapped in said slot, to disengage from it.

La mise en regard de toutes les encoches des roues dentées du pivot est réalisée par la rotation simultanée et/ou successive de celles-ci, qui sont entraínées par les roues dentées de l'axe de manoeuvrement.Comparing all the notches of the cogwheels of the pivot is achieved by rotation simultaneous and / or successive of these, which are driven by the gear wheels of the operating axis.

La mise en rotation de l'axe de manoeuvrement dans un sens aboutit à une position de blocage quand le cran de la roue dentée extrême s'engage dans l'encoche de son rochet, cette position étant celle de départ. Puis par des rotations successives dans l'autre sens, en sens inverse, et encore dans l'autre sens, selon à chaque fois un certain nombre de crans cadencés par les rochets, on fait tourner la roue dentée qui est solidaire de l'axe de manoeuvrement et éventuellement l'une et/ou l'autre des deux autres roues dentées, selon la position du doigt d'accouplement et selon que cet accouplement est réalisé par l'intermédiaire d'une face plane de celui-ci ou d'une face biseautée, l'accouplement n'étant pas réalisable dans ce dernier cas puisque le doigt d'accouplement est repoussé dans sa gorge.The rotation of the operating axis in one direction results in a blocking position when the notch of the extreme toothed wheel engages in the notch of its ratchet, this position being that of departure. Then by successive rotations in the other direction, in opposite direction, and again in the other direction, according to each time a certain number of notches clocked by the ratchets, we rotate the toothed wheel which is integral with the operating axis and possibly one and / or the other of the other two wheels toothed, depending on the position of the coupling finger and that this coupling is achieved through a flat face thereof or a bevelled face, coupling is not feasible in the latter case since the coupling finger is pushed back into its throat.

Les avantages et les caractéristiques de la présente invention ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, étant entendu que cette description ne présente aucun caractère limitatif vis à vis de l'invention.The advantages and features of the present invention will emerge more clearly from the description which follows and which relates to the appended drawing, it being understood that this description does not present any limiting character with respect to the invention.

Dans le dessin annexé :

  • la figure 1 représente une vue en perspective et en éclaté avec arraché partiel d'un dispositif selon l'invention.
  • la figure 2 représente une vue partielle en perspective d'un élément du dispositif selon l'invention, à savoir le doigt d'accouplement de l'axe de manoeuvrement.
  • les figures 3a, 3b et 3c représentent des vues partielles en plan des roues dentées de l'axe de manoeuvrement.
In the attached drawing:
  • Figure 1 shows a perspective and exploded view partially broken away of a device according to the invention.
  • 2 shows a partial perspective view of an element of the device according to the invention, namely the coupling pin of the operating axis.
  • Figures 3a, 3b and 3c show partial plan views of the toothed wheels of the operating axis.

Si on se réfère à la figure 1 on peut voir que le dispositif selon l'invention comporte une série de trois roues dentées 1, 2 et 3 montées sur un axe de manoeuvrement 4, accolées à une série de trois autres roues dentées 1', 2' et 3' qui s'engrènent sur les roue dentées respectivement 1, 2 et 3, et sont montées sur un pivot 70 solidaire d'une plaque 7 montée pivotante sur un axe 50 solidaire d'une platine de base 5 et rappelée par un ressort de torsion 72 enfilé sur l'axe 50, pour permettre les engrènements.If we refer to Figure 1 we can see that the device according to the invention comprises a series of three toothed wheels 1, 2 and 3 mounted on a maneuvering axis 4, attached to a series of three other toothed wheels 1 ', 2' and 3 ′ which mesh on the gear wheels 1 respectively, 2 and 3, and are mounted on a pivot 70 secured to a plate 7 pivotally mounted on an axis 50 integral with a base plate 5 and recalled by a torsion spring 72 threaded on axis 50, to allow meshing.

Le pivot 70 comporte une fente diamétrale 71 dans laquelle est introduite la partie saillante 60, pliée à angle droit, d'une plaque de condamnation 6 montée pivotante sur le pivot 50.The pivot 70 has a diametrical slot 71 into which is inserted the protruding part 60, folded right angle, of a locking plate 6 pivotally mounted on pivot 50.

Les ouvertures 10', 20' et 30' des roues dentées 1', 2' et 3', par où passe le pivot 70 , sont prolongées chacune d'une encoche, respectivement 11', 21' et 31', dont la mise en regard avec la fente 71 du pivot 70 autorise le pivotement de la plaque de condamnation 6, laquelle est solidaire du pêne, non représenté, le pivotement de la plaque de condamnation 6 permettant ainsi le manoeuvrement de ce dernier.The 10 ', 20' and 30 'openings of the gear wheels 1 ', 2' and 3 ', through which the pivot 70 passes, are extended each of a notch, respectively 11 ', 21' and 31 ', of which the comparison with the slot 71 of the pivot 70 authorizes the pivoting of the locking plate 6, which is secured to the bolt, not shown, the pivoting of the locking plate 6 thus allowing maneuvering of the last.

L'axe de manoeuvrement 4 comporte une gorge longitudinale 40 dans laquelle peut pivoter, autour d'un axe diamétral 41, en vue de s'extraire ou non de la gorge 40 sous l'action d'un ressort 80, un doigt d'accouplement 8 qui sera décrit plus en détail ci-après.The operating axis 4 has a groove longitudinal 40 in which can pivot, about an axis diametral 41, whether or not to extract from the groove 40 under the action of a spring 80, a coupling finger 8 which will be described in more detail below.

La roue dentée 3 est solidarisée à l'axe de manoeuvrement 4 par l'intermédiaire d'un cran 30, également visible sur la figure 3c, qui s'insére dans la gorge 40 de l'axe 4.The toothed wheel 3 is secured to the axis of operation 4 via a notch 30, also visible in Figure 3c, which fits into the groove 40 of axis 4.

Les ouvertures 10 et 20 des roues dentées 1 et 2, par où passe l'axe de manoeuvrement 4, comportent chacune une encoche, respectivement 11 et 21, qui seront décrites plus en détail ci-après, dans lesquelles peut venir s'encastrer le doigt accouplement 8 afin de solidariser les roues 1 et 2 à l'axe 4.The openings 10 and 20 of the toothed wheels 1 and 2, through which the operating axis 4 passes, each comprise a notch, respectively 11 and 21, which will be described in more detail below, in which may come recess the coupling finger 8 in order to secure the wheels 1 and 2 to axis 4.

Les roues dentées 1, 2 et 3 sont associées à des rochets respectivement 12, 22, 32, rappelés par des ressorts non représentés, permettant d'indexer les positions des roues.The gear wheels 1, 2 and 3 are associated with ratchets 12, 22, 32 respectively, recalled by springs not shown, allowing to index the positions of wheels.

Si on se réfère maintenant à la figure 2 on peut voir que le doigt d'accouplement 8 comporte, de son extrémité libre à son extrémité montée en pivotement, une partie 82 présentant deux faces parallèles 820 et 821 surmontées d'un biseau longitudinal 83 , puis une partie 84 présentant deux faces parallèles 840 et 841 prolongeant les faces respectivement 820 et 821, surmontées d'un biseau longitudinal 85 dont l'inclinaison est opposée à celle du biseau 83, et qui présente une arête supérieure 842, et une arête inférieure 850 située dans le prolongement de l'arête supérieure 830 du biseau 83.If we now refer to Figure 2 we can see that the coupling finger 8 comprises, from its free end at its pivotally mounted end, a part 82 having two parallel faces 820 and 821 surmounted by a longitudinal bevel 83, then a portion 84 having two parallel faces 840 and 841 extending the faces respectively 820 and 821, surmounted by a bevel longitudinal 85 whose inclination is opposite to that of bevel 83, and which has an upper edge 842, and a lower edge 850 located in the extension of the edge upper 830 of bevel 83.

Les longueurs des parties 82 et 84 sont approximativement égales aux épaisseurs des roues dentées 1 et 2, la partie 82 étant destinée à entraíner la roue dentée 1 et la partie 84 à entraíner la roue dentée 2.The lengths of parts 82 and 84 are approximately equal to the thickness of the gear wheels 1 and 2, the part 82 being intended to drive the toothed wheel 1 and the part 84 to drive the toothed wheel 2.

Sur la figure 3a on peut voir que l'encoche 11 de la roue dentée 1 est positionnée radialement entre deux dents 13 et qu'elle est de forme sensiblement carrée, les côtés 14 et 15 de cette encoche étant distants d'une largeur légèrement supérieure à l'épaisseur du doigt d'accouplement 8.In Figure 3a we can see that the notch 11 of the toothed wheel 1 is positioned radially between two teeth 13 and that it is of substantially square shape, the sides 14 and 15 of this notch being spaced apart by a width slightly greater than the thickness of the coupling finger 8.

Sur la figure 3b on peut voir que l'encoche 21 est en forme approximative de M aplati, présentant d'une part deux côtés radiaux 24 et 25 dont les prolongements passent par les sommets de deux dents 23 séparées par une autre, et d'autre part deux côtés obliques 26 et 27 dont la jonction forme une arête 28 sensiblement à mi-hauteur de l'encoche 21.In Figure 3b we can see that the notch 21 has an approximate flattened M shape, presenting a share two radial sides 24 and 25 whose extensions pass through the tops of two teeth 23 separated by a other, and on the other hand two oblique sides 26 and 27 whose junction forms an edge 28 substantially halfway up notch 21.

Dans la description qui suit du fonctionnement du dispositif selon l'invention on mentionne les deux sens de rotation de l'axe de manoeuvrement 4, R étant le sens des aiguilles d'une montre et S le sens inverse. In the following description of the operation of the device according to the invention both directions are mentioned of rotation of the operating axis 4, R being the direction of clockwise and S counterclockwise.

La position de départ est définie comme étant celle de blocage, dans une encoche 130 ménagée dans une dent 13 de la roue 1, du rochet 12 qui lui est associé, et qui comporte un cran 120, susceptible, lorsque l'axe de manoeuvrement 4 tourne dans le sens R, de venir se caler dans l'encoche 130.The starting position is defined as that of blocking, in a notch 130 formed in a tooth 13 of the wheel 1, of the ratchet 12 which is associated therewith, and which comprises a notch 120, susceptible, when the axis of maneuver 4 turns in direction R, to come to rest in notch 130.

Une combinaison correspondant à des rotations successives dans les sens respectivement S, R puis S, à chaque fois d'un certain nombre de crans, qui font tourner la roue dentée 3, et font tourner ou non les roues dentées 1 et 2, permet d'entraíner ou non les roues dentées 1', 2' et 3' de manière que celles-ci prennent une position permettant le pivotement de la plaque de condamnation 6.A combination corresponding to rotations successive in the directions S, R and S respectively, at each time by a number of notches, which rotate the gear 3, and rotate or not the gear 1 and 2, allows to drive or not the gears 1 ', 2' and 3 'so that they take a position allowing the pivoting of the locking plate 6.

Une rotation d'un cran dans le sens S permet l'entraínement, outre de la roue dentée 3 qui est toujours entraínée, de la roue dentée 1, par l'intermédiaire de la face 821 du doigt d'accouplement 8 qui bute contre le côté 14 de l'encoche 11, alors que la roue dentée 2 n'est pas entraínée car le biseau 85 longe alors le côté oblique 27 et l'arête supérieure 842 du doigt 8 passe l'arête 28 de l'encoche 21 sans s'y accrocher, ce qui a pour effet de faire rentrer partiellement le doigt d'accouplement 8 dans la gorge 40, mais pas suffisamment toutefois pour empêcher sa face 821 de buter sur le côté 14 de l'encoche 11 de la roue dentée 1.A rotation of a notch in the S direction allows the drive, in addition to the gear 3 which is always driven, the toothed wheel 1, through the face 821 of the coupling finger 8 which abuts against the side 14 of the notch 11, while the gear 2 is not driven because the bevel 85 then runs along the oblique side 27 and the upper edge 842 of finger 8 passes the edge 28 of notch 21 without clinging to it, which has the effect of partially insert the coupling finger 8 into throat 40, but not enough to prevent its face 821 to abut on the side 14 of the notch 11 of the gear 1.

En prolongeant la rotation S d'un cran et plus, les trois roues dentées 1 ,2 et 3 sont entraínées, la roue dentée 2 l'étant par l'intermédiaire de son côté 24 et de la face 841 du doigt 8.By extending the rotation S by one notch and more, the three toothed wheels 1, 2 and 3 are driven, the wheel toothed 2 being through its side 24 and the face 841 of finger 8.

Ensuite, lors d'une rotation d'un cran dans le sens R, la roue dentée 3 tourne toujours, la roue dentée 2 ne tourne pas, car l'arête 842 longe le côté 26 de l'encoche 21 et passe l'arête 28, ce qui a pour effet de faire descendre le doigt d'accouplement 8 et a pour conséquence que le biseau 83 attaque le bord inférieur de l'encoche 11 et s'en dégage, l'arête 830 entrant alors en contact avec la paroi interne 16 de la roue dentée 1, qui ne bouge pas. Then, during a rotation of a notch in the direction R, the gear 3 always turns, the gear 2 does not rotate because edge 842 runs along side 26 of the notch 21 and cross the edge 28, which has the effect of making lower the coupling finger 8 and results in that the bevel 83 attacks the lower edge of the notch 11 and emerges from it, the edge 830 then coming into contact with the internal wall 16 of the toothed wheel 1, which does not move.

En prolongeant la rotation R d'un cran et plus, la roue dentée 2 tourne, par l'intermédiaire de la face 840 du doigt 8 butant contre le côté 25 de l'encoche 21, et la roue dentée 1 ne tourne plus, bloquée par son rochet 12.By extending rotation R a notch and more, the toothed wheel 2 rotates, via the face 840 of finger 8 abutting against the side 25 of the notch 21, and the gear 1 no longer turns, blocked by its ratchet 12.

Puis, lors d'un dernier changement de sens de rotation d'un cran dans le sens S, la partie 84 du doigt 8 se déplace dans l'encoche 21 sans faire tourner la roue dentée 2, et la partie 82 n'accroche pas la roue dentée 1 qui ne tourne plus, la roue 3 seule tournant.Then, during a last change of direction of rotation of a notch in direction S, part 84 of finger 8 moves in notch 21 without turning the wheel gear 2, and the part 82 does not hook the gear 1 which no longer turns, the wheel 3 only turning.

En prolongeant la rotation d'un cran et plus, la partie 84, du fait de la position semi-abaissée du doigt d'accouplement 8, attaque le bord inférieur du côté 24 de l'encoche 21 par le biseau 85, ce qui a pour effet d'abaisser complètement le doigt d'accouplement 8 dont l'arête 842 prend appui contre la paroi interne 29 de la roue dentée 2, qui de ce fait n'est plus entraínée et qui ne tourne plus, bloquée par son rochet 22, la roue 3 seule tournant.By extending the rotation one step or more, the part 84, due to the semi-lowered position of the finger coupling 8, attack the lower edge of side 24 of the notch 21 by the bevel 85, which has the effect to fully lower the coupling finger 8 of which the edge 842 bears against the internal wall 29 of the gear 2, which is therefore no longer driven and which does not turns more, blocked by its ratchet 22, the wheel 3 alone turning.

Le retour à la position initiale de blocage en tournant l'axe de manoeuvrement 4 dans le sens R, est obtenu d'une part lorsque la partie 84 du doigt 8 s'engage à nouveau dans l'encoche 21 de la roue dentée 2, ce qui permet au doigt d'accouplement 8 de s'extraire de la gorge 40, et de s'engager dans l'encoche 11 en faisant tourner la roue dentée 1, qui se bloque sur son rochet 12.Return to the initial blocking position in turning the operating axis 4 in the direction R, is obtained on the one hand when the part 84 of finger 8 commits to again in the notch 21 of the toothed wheel 2, which allows the coupling finger 8 to extract from the groove 40, and to engage in notch 11 by turning the wheel toothed 1, which hangs on its ratchet 12.

En revenant à la figure 1 on peut voir que la platine de base 5 est traversée par un axe 51, apte à tourner dans celle-ci, cette rotation étant limitée à un quart de tour du fait de la forme semi-cylindrique de l'extrémité 52 de cet axe 51, qui est engagée dans un orifice 90 en trois quart de rond pratiqué dans la platine supérieure 9, l'axe 51 comportant également une fente transversale 53 dans laquelle est engagée la plaque 7.Returning to Figure 1 we can see that the base plate 5 is crossed by an axis 51, suitable for rotate in it, this rotation being limited to one quarter turn due to the semi-cylindrical shape of the end 52 of this axis 51, which is engaged in a orifice 90 in three quarter of a round made in the plate upper 9, the axis 51 also comprising a slot transverse 53 in which the plate 7 is engaged.

Lorsque la bonne combinaison a été effectuée, ce qui permet l'engagement de la partie 60 de la plaque de condamnation 6 dans les encoches 11', 21' et 31' des roues dentées 1', 2' et 3', le pivotement, alors possible, de l'axe 51 a pour effet le pivotement de la plaque 7 sur l'axe 50, ce qui a pour effet de dégager les roues dentées 1', 2' et 3' des roues dentées 1, 2 et 3 que l'on peut manoeuvrer librement pour entrer une nouvelle combinaison après remise en position de départ, un simple pivotement de l'axe 51 dans l'autre sens permettant ensuite de ramener la plaque 7 dans sa position initiale.When the right combination has been made, this which allows the engagement of part 60 of the plate lock 6 in the notches 11 ', 21' and 31 'of the wheels teeth 1 ', 2' and 3 ', the pivoting, then possible, of the axis 51 has the effect of the pivoting of the plate 7 on the axis 50, which has the effect of releasing the toothed wheels 1 ′, 2 ′ and 3 'of the gear wheels 1, 2 and 3 which can be maneuvered free to enter a new combination after discount in the starting position, a simple pivoting of the axis 51 in the other direction then allowing the plate 7 to be brought back into its initial position.

La serrure selon l'invention peut également comporter un dispositif permettant de brouiller la combinaison à la fermeture du pêne, dans le cas où l'utilisateur oublierait de le faire, ce dispositif pouvant consister en une plaque reliée au pêne, qui vient, lors du déplacement de celui-ci, faire tourner la roue dentée 2 d'au moins un cran.The lock according to the invention can also include a device to scramble the combination with the closing of the bolt, in case the user would forget to do so, this device being able to consist of a plate connected to the bolt, which comes, during the moving it, rotate the gear wheel 2 by minus a notch.

Claims (5)

  1. Combination lock device for preventing the manipulation of a bolt, comprising on the one hand a free rotation manipulation spindle (4), having a longitudinal groove (40) in which is placed a coupling pin (8) able to pivot and, under the effect of a spring (80), to extract itself from said groove (40), said spindle (4) being introduced into three first, coupled, toothed wheels (1, 2, 3), whereof one end wheel (3) is fixed to the spindle (4), to which the two other wheels (1, 2) may or may not be joined as a function of whether said coupling pin (8) is or is not in the projecting position, on the other hand a pivot (70), integral with a plate (7), parallel to the manipulating spindle (4) and having a longitudinal, diametral slot (71), on which are mounted three second toothed wheels (1', 2', 3'), each meshing on a toothed wheel (1, 2, 3) of the manipulating spindle (4), said second toothed wheels (1', 2', 3') having in each case, peripherally and radially in their central opening, a notch (11', 21', 31') which, during the rotation of said second toothed wheels (1', 2', 3') on said pivot (70), can be placed facing the diametral slot (71) of the latter in order to permit the pivoting, about a spindle (50) integral with a base plate (5) and parallel to said manipulating spindle (4) and said pivot (70), of a locking plate (6) connected to the bolt and provided with a projecting portion (60) perpendicular thereto and trapped in said slot (71) when the latter is not facing all the notches (11', 21', 31'), characterized in that the coupling pin (8) has two portions, a first, laterally bevelled, end portion (82), longitudinally extended by a second portion (84), which is also laterally bevelled, but on the opposite side and whose lower, longitudinal edge (850) is in the extension of the upper, longitudinal edge (830) of the bevel (83) of said first portion (82), said second bevelled portion (84) cooperating with a M-shaped notch (21) in the wall of the central opening (20) of the central toothed wheel (2), whilst the first bevelled portion (82) cooperates with a square notch (11) in the wall of the central opening (10) of the end toothed wheel (1) of said two other toothed wheels (1, 2), so that following a rotation of the spindle (4) in a first direction (S) resulting from a simultaneous rotation of the three first toothed wheels (1, 2, 3), a rotation of the spindle (4) in the other direction (R) results in the second bevelled portion (84) cooperating with the M-shaped notch (21), so that the first bevelled portion (82) engages on the lower edge of the square notch (11) and is freed therefrom and in that a following rotation in the first direction (S) results in the second bevelled portion (84) engaging on the lower edge of the M-shaped notch (21) and being freed therefrom.
  2. Device according to claim 1, characterized in that the positioning of the toothed wheels (1, 2, 3) of the manipulating spindle (4) is indexed by means of ratchets (12, 22, 32), a tooth (13) of the end toothed wheel (1) being joinable by means of the coupling pin (8) to the manipulating spindle (4) and having a catch (130) engageable in a notch (120) in the ratchet (12) corresponding thereto, with a view to the blocking of said toothed wheel (1) in one rotation direction.
  3. Device according to claim 1 or 2, characterized in that the pivot (70) is integral with a plate (7) mounted in pivoting manner on the pivot pin (50) of the locking plate (6).
  4. Device according to any one of the preceding claims, characterized in that it comprises, to permit the jamming of the combination on closure of the bolt, a plate connected to the latter and which, during the displacement of said bolt, rotates the central toothed wheel (2) by at least one catch.
  5. Device according to any one of the preceding claims, characterized in that the base plate (5) is traversed by a pin (51), whose semicylindrical end (52) is introduced into a three quarter round orifice (90) made in the cover plate (9), and in that the pin (41) has a transverse slot (53) in which is engaged part of the plate (7), the pivoting of said pin (51) having the effect of pivoting the plate (7) on the pin (5) and disengaging the toothed wheels (1', 2', 3') from the toothed wheels (1, 2, 3).
EP94440078A 1994-11-25 1994-11-25 Combination lock for preventing the actuation of a bolt Expired - Lifetime EP0713945B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69417040T DE69417040T2 (en) 1994-11-25 1994-11-25 Combination lock for preventing the operation of a bolt
AT94440078T ATE177501T1 (en) 1994-11-25 1994-11-25 COMBINATION LOCK FOR PREVENTING THE OPERATION OF A LOCK
EP94440078A EP0713945B1 (en) 1994-11-25 1994-11-25 Combination lock for preventing the actuation of a bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94440078A EP0713945B1 (en) 1994-11-25 1994-11-25 Combination lock for preventing the actuation of a bolt

Publications (2)

Publication Number Publication Date
EP0713945A1 EP0713945A1 (en) 1996-05-29
EP0713945B1 true EP0713945B1 (en) 1999-03-10

Family

ID=8218105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94440078A Expired - Lifetime EP0713945B1 (en) 1994-11-25 1994-11-25 Combination lock for preventing the actuation of a bolt

Country Status (3)

Country Link
EP (1) EP0713945B1 (en)
AT (1) ATE177501T1 (en)
DE (1) DE69417040T2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE351184C (en) * 1918-11-02 1922-04-03 Metallwarenfabrik safety lock
DE351185C (en) * 1919-04-16 1922-04-01 Metallwarenfabrik safety lock
GB164704A (en) * 1920-06-14 1922-01-16 Auto Combinator Sa Improvements in or relating to safety devices for preventing the unauthorised operation of locking means
FR576212A (en) * 1924-01-23 1924-08-13 Combination lock
FR642531A (en) * 1927-10-18 1928-08-30 Improvements to combination locks
FR773381A (en) * 1934-05-17 1934-11-16 Safety lock
US2677265A (en) * 1949-06-30 1954-05-04 E A Rosengrens Kassaskapsfabri Combination type control mechanism for lock bolts

Also Published As

Publication number Publication date
EP0713945A1 (en) 1996-05-29
DE69417040T2 (en) 1999-06-24
DE69417040D1 (en) 1999-04-15
ATE177501T1 (en) 1999-03-15

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