EP0229514B1 - Pêne pour serrure - Google Patents

Pêne pour serrure Download PDF

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Publication number
EP0229514B1
EP0229514B1 EP86309861A EP86309861A EP0229514B1 EP 0229514 B1 EP0229514 B1 EP 0229514B1 EP 86309861 A EP86309861 A EP 86309861A EP 86309861 A EP86309861 A EP 86309861A EP 0229514 B1 EP0229514 B1 EP 0229514B1
Authority
EP
European Patent Office
Prior art keywords
drive
actuator
mechanism according
rotation
housing
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
EP86309861A
Other languages
German (de)
English (en)
Other versions
EP0229514A1 (fr
Inventor
Donald John Newman
John Alexander Christie
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.)
Ogden Industries Pty Ltd
Original Assignee
Ogden Industries 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 AU66545/86A external-priority patent/AU579757B2/en
Application filed by Ogden Industries Pty Ltd filed Critical Ogden Industries Pty Ltd
Publication of EP0229514A1 publication Critical patent/EP0229514A1/fr
Application granted granted Critical
Publication of EP0229514B1 publication Critical patent/EP0229514B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member

Definitions

  • This invention relates to lock bolt mechanisms, such as those including latch bolts or deadbolts, but it will be convenient to hereinafter describe the invention with particular reference to deadbolts whose path of movement is substantially parallel to an upright edge of a door, although use with deadbolts whose path of movement is transverse to the door upright edge is also possible.
  • a deadbolt assembly normally includes inside and outside actuators.
  • the outside actuator is typically a key operated cylinder, whereas the inside actuator can be either a manually operable turn knob or a key operated lock.
  • the deadbolt assembly may also include a security feature which is selectively operable to hold the turn knob against rotation and thereby prevent operation of the deadbolt from the inside of the door. It has been found, however, that such a security feature can be defeated by applying a tool such as a wrench to the turn knob and forcing the turn knob to turn against the resisting influence of the security feature.
  • a lock bolt mechanism comprising a housing, a lock bolt mounted on said housing for movement relative thereto, an actuator rotatably mounted on said housing, and a drive connection between said actuator and said lock bolt whereby said bolt is caused to move in response to rotation of said actuator, characterised in that a clutch means is included in said drive connection and is arranged to adopt either an engaged condition or a disengaged condition at which said drive connection is completed and broken respectively, at least one drive dog forms part of said clutch means and is movable between a drive engage position at which said drive connection is complete and a drive release position at which said drive connection is broken, said movement of the drive dog being in a direction generally radially relative to the axis of rotation of said actuator, and an operating means is mounted on said housing and is operable to cause said clutch means to adopt a selected one of said conditions.
  • FIG. 1 A typical deadbolt assembly to which the invention is applicable is shown by Figure 1 and includes a hollow housing 1 or case which is attachable to the inside surface of a door 2.
  • a front edge portion 3 of the housing 1 is arranged to project beyond the front upright edge 4 of the door 2 and that edge portion 3 contains the bolt 5.
  • the bolt 5 is best seen in Figure 2 and includes two aligned and axially spaced cylindrical parts 6 and 7 which are interconnected as hereinafter described for simultaneous up and down movement.
  • Two recesses 8 and 9 are provided within the housing front edge portion 3 to receive the strike 10 and each bolt part 6 and 7 extends across a respective one of those recesses 8 and 9 when the deadbolt assembly is in the operative condition, whereas the bolt parts 6 and 7 are located clear of the recesses 8 and 9 when the assembly is inoperative as shown in Figure 1.
  • a rotatable turn knob 11 is mounted on the housing 1 and a drive connection provided within the housing 1 is operable to connect the turn knob 11 and the bolt 5.
  • Deadbolt assemblies of the foregoing kind are well known and such an assembly is modified in accordance with the present invention by addition of security means including an overriding clutch 12 ( Figure 2).
  • FIG. 2 A preferred form of the security means is shown in Figure 2 and includes operating means in the form of a key operated lock 13 and a pin tumbler cylinder lock has been found satisfactory for that purpose.
  • the overriding clutch 12 is rendered operable or inoperable by the lock 13 and the clutch 12 is included in the drive connection between the turn knob 11 and the bolt 5.
  • the drive connection includes a drive member 14 and a driven member 15, both of which are preferably mounted for rotation about substantially the same axis, and the clutch 12 is provided between those members.
  • the drive member 14 is connected to or formed by the turn knob 11 and the driven member 15 is connected to the deadbolt 5 so as to be operable to cause movement of that bolt 5 between its operative and inoperative conditions.
  • the turn knob 11 as shown includes a cylindrical mounting section which functions as the drive member 14 and is rotatabiy. mounted within a complementary bore 25 formed within the housing 1.
  • that cylindrical section 14 is hollow so as to receive other components of the deadbolt assembly such as the clutch 12 and the driven member 15.
  • the driven member 15 is in the form of a disc as shown which is arranged coaxial with the cylindrical section 14 of the knob 11 and any suitable means may be provided for connecting that disc 15 to the deadbolt 5.
  • an eccentrically arranged pin 16 secured to the disc 15 is arranged to move the deadbolt 5 in response to rotation of the disc 15.
  • clutch 12 includes a cam plate 17 and at least one cam follower 18 which comprises or influences a drive dog through which drive is transmitted from the turn knob 11 to the disc 15.
  • cam plate 17 and the driven disc 15 are located in substantially face to face relationship within the hollow cylindrical mounting section 14 of the turn knob 11. It is generally convenient to locate the cam plate 17 between the driven disc 15 and a rearwardly facing surface 19 of the turn knob 11.
  • Each drive dog 18 preferably comprises an element which extends between and engages with both the cylindrical mounting section 14 of the turn knob 11 and the driven disc 15.
  • that element has a cylindrical roller-type body 20 which has its axis substantially parallel to the rotational axis of the turn knob 11 and which seats within a recess 21 provided in the periphery of the turn knob mounting section 14.
  • An axial projection 22 at one end of that roller 20 engages within a peripheral recess 23 of the driven disc 15.
  • the arrangement is such that the roller 20 moves with the turn knob 11 as that knob 11 rotates and consequently transmits drive to the driven disc 15 through the axial projection 22 and engaging recess 23 of the driven disc 15.
  • Each of the turn knob and disc recesses 21 and 23 is open at the periphery of its respective member for a reason hereinafter made clear.
  • the turn knob recesses 21 are of such a depth that the respective roller 20 can be located completely within the periphery of the cylindrical mounting section 14 and that is the position adopted by the roller 20 when the clutch 12 is inoperable (Figure 3). In that position of the roller 20, it tracks around the surrounding surface 24 of the housing bore 25 when the turn knob 11 is rotated.
  • Two locking cavities 26 are provided in that surrounding surface 24 in diametrically opposed relationship and each is dimensioned so as to be capable of neatly receiving a respective one of the rollers 20.
  • Biasing means may be associated with each cavity 26 and arranged to resist movement of a roller 20 into the respective cavity 26.
  • each such biasing means includes a spring influenced plunger 27 which is slidably mounted within the respective cavity 26 and is arranged to effectively block entrance of a roller 20 into that cavity 26.
  • a coil compression spring 28 acts between the plunger 27 and the base of the respective cavity 26.
  • the cam plate 17 is preferably mounted for rotation about substantially the same axis as the turn knob 11 and is disposed so that its outer edge 29 is located between and is engageable with the two rollers 20. That outer edge 29 forms a cam surface which is operable to influence the position of each roller 20 relative to the turn knob axis.
  • the cam plate 17 is rotated into a locked position ( Figure 5), however, the cam surface 29 pushes each roller 20 outward so that it projects beyond the outer surface 30 of the turn knob mounting section 14. Such outward travel of the rollers 20 is only possible when each roller 20 is aligned with a respective housing cavity 26 as hereinafter described.
  • stop means is provided to limit the extent of rotation of the cam plate 17 relative to the turn knob 11 and the two extremes of that limited rotation may constitute the locked and unlocked positions respectively.
  • Rotation between those positions is preferably controlled by a key operated lock 13 as previously mentioned and the body of that lock may be located within the turn knob 11 so as to rotate with that knob 11.
  • the axis of rotation of the lock barrel is preferably substantially coincident with the rotational axis of the turn knob 11.
  • the barrel of the lock 13 is rotated through 360 ° between the locked and unlocked positions of that means, whereas the cam plate 17 requires less movement - e.g., approximately 60° movement. That difference in movement may be compensated by a lost motion connection between the barrel of the lock 13 and the cam plate 17.
  • a drive lug 31 fixed to the barrel of the lock 13 locates within a central opening 32 of the cam plate 17 so as to be engageable with a cooperable lug 33 of the cam plate 17 which projects inwardly from the edge of that opening 32.
  • the arrangement is such that the barrel lug 31 can move relative to the cam plate 17 through approximately 300 ° before engaging the cam plate lug 33.
  • any suitable means may be adopted to hold the cam plate 17 so that it rotates about the axis previously referred to.
  • that means includes a cylindrical projection 36 ( Figures 3 to 6) which extends outwardly from one face of the cam plate and locates and tracks within a curved groove 34 formed in an opposed face of the turn knob 11.
  • the opposite ends 37 and 38 of that groove 34 may form part of the aforementioned stop means.
  • the deadbolt 5 preferably includes a carrier plate 35 which is arranged within the housing 1 so as to be movable relative thereto in the axial direction of the bolt parts 6 and 7. Any suitable guide means may be employed for that purpose.
  • the eccentric pin 16 of the driven disc 15 engages with the carrier plate 35 so that rotation of the driven disc 15 is translated into linear movement of the carrier plate 35.
  • the driven disc 15 and carrier plate 35 are constructed and adapted to cooperate as described in our copending EP-A 0 228 244.
  • the driven disc 15 of that construction is arranged to move through approximately 180 ° for the purpose of moving the deadbolt 5 between its operative and inoperative positions, and means may be provided to prevent substantial rotation of the disc 15 beyond that range of movement.
  • Rotation of the turn knob 11 also causes rotation of the driven disc 15 because of the engagement of the drive dog rollers 20 with both the turn knob 11 and the driven disc 15.
  • the driven disc 15 causes the deadbolt 5 to move from the inoperative position to the operative position.
  • the lock 13 can be actuated through the use of an appropriate key so as to render the overriding clutch 12 operable. That operation includes turning the barrel of the lock 13 in the anti-clockwise direction relative to the turn knob 11. As a consequence of that movement, the barrel lug 31 is initially moved away from the cam plate lug 33, but those lugs 31 and 33 eventually re-engage after the lock barrel has moved through approximately 300 ° . Continued movement of the lock barrel the causes corresponding movement of the cam plate 17 and the ramping section 40 of the cam plate peripheral edge 29 is thereby moved against each drive dog roller 20 so as to urge those rollers 20 radially outwards.
  • each roller 20 is engaged by a respective one of the plungers 27, and each roller 20 is able to move outwards by pushing the respective plunger 27 back into the locking cavity 26.
  • each roller 20 will have been lifted through a distance such that it is partly located in the adjacent locking cavity 26 and partly located in the respective -turn knob recess 21 as shown in Figure 5.
  • the roller axis is located in or near the plane of the housing bore surface 24. Also, at that position of each roller 20, its axial projection 22 is completely removed from the respective peripheral recess 23 of the driven disc 15 and consequently the drive connection between the turn knob 11 and driven disc 15 is broken.
  • rollers 20 bridge between the turn knob 11 and housing 1, they provide a positive resistance to rotation of the turn knob 11 relative to the housing 1.
  • the arrangement is preferably such that the turn knob 11 cannot be rotated by hand. If an attempt is made to force the turn knob 11 to rotate, such as by applying a wrench or other tool to the turn knob 11, an edge of each turn knob recess 21 will be pressed against the cylindrical surface of the adjacent roller 20 and that will cause the roller 20 to be cammed further outwards to the position shown in Figure 6.
  • Such camming action permits the turn knob 11 to rotate relative to the housing 1, but the driven disc 15 remains stationary because of the absence of a connection between it and the turn knob 11.
  • each roller 20 will be forced into the respective locking cavity 26 as shown in Figure 6 so that the turn knob 11 can rotate relatively freely, again without having any influence on the rotational position of the driven disc 15 and consequently there is no change in the position of the deadbolt 5.
  • each roller 20 bears on the cylindrical outer surface 30 of the turn knob mounting section 14 and is thereby held in its respective cavity 26, and that condition will remain so long as the barrel of the lock 13 is positioned as described above.
  • the key operated lock 41 which forms the outside actuator can continue to influence the position of the deadbolt 5 regardless of the condition of the overriding clutch 12. If the clutch 12 is operative, the outside lock 41 can function to rotate the driven disc 15 because of its disconnection from the turn knob 11 and thereby change the position of the deadbolt 5. If the clutch 12 is inoperative, the outside lock 41 can still function as required, but in that event the turn knob 11 will rotate with the driven disc 15.
  • the outer lock 41 is a pin tumbler cylinder lock and a drive bar 42 connected to the inner end of the barrel of the lock 41 is engageable with the eccentric pin 16 of the driven disc 15. If the barrel rotates through 360° between its two conditions of operation, the drive bar 42 may be arranged to move through 180 ° in either direction before engaging the driven disc pin 16.
  • the overriding clutch 12 provides effective security means which prevents forced operation of the deadbolt 5 and furthermore prevents the associated mechanism being damaged by forced rotation of the turn knob 11.
  • the security of an arrangement as described may be further improved by mounting the turn knob 11 so that it cannot be forced to separate from the mechanism housing 1.
  • Such turn knobs have been held against separation from the housing by a circlip or retaining plate, and it has been possible to overcome the restraining influence of such devices by force and thereby separate the turn knob from the housing. Such separation enables access to the mechanism so that improper actuation of the deadbolt is possible.
  • the improved turn knob mounting described below can be used with the housing for mechanisms other than that particularly described above, including both latch bolt and deadbolt mechanism housings.
  • the aforementioned problem is overcome or minimised by having the mounting section 14 of the turn knob 11 dimensioned so that it extends laterally beyond the hand engageable part 43 of the knob 11.
  • the housing bore 25 which receives that mounting section 14 extends into the housing 1 from a rear side thereof and is stepped down between the front and rear sides of the housing to provide a rearwardly facing annular shoulder 44.
  • the turn knob 11 is positioned in the housing bore 25 from the rear side of the housing 1 so that an end face 45 of the mounting section 14 abuts against the shoulder 44.
  • the hand engageable part 43 of the turn knob 11 extends through the smaller section of the housing bore 25 to project beyond the front side of the housing 1.
  • Such an arrangement provides firm resistance to separation of the turn knob from the housing. Indeed, such separation would require destruction of a substantial part of the turn knob and/or the housing.
  • This particular aspect of the invention may or may not be used with an overriding clutch as previously described.

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  • Lock And Its Accessories (AREA)

Claims (14)

1. Mécanisme à pêne dormant se composant d'un boîtier (1), d'un pêne dormant (5) monté sur ledit boîtier (1) en mouvement relatif à celui-ci, d'un organe de commande (11) monté rotativement sur ledit boîtier (1) et d'un raccordement d'entraînement entre ledit organe de commande (11) et ledit pêne dormant (5) où ledit pêne se déplace sous l'influence de la rotation dudit organe de commande, caractérisé en ce qu'un accouplement (12) est inclus dans ledit raccordement et disposé de telle sorte à s'emboîter ou se dégager lorsque ledit raccordement d'entraînement est respectivement établi ou interrompu, au moins une griffe d'entraînement (18) fait partie intégrante dudit accouplement (12) et peut se déplacer entre une position d'emboîtement où ledit entraînement est établi et une position de dégagement où ledit entraînement est interrompu, ledit déplacement de la griffe d'entraînement (18) suivant un gens généralement radial par rapport à l'axe de rotation dudit organe de commande (11), et un dispositif de manoeuvre (13) est monté sur ledit boîtier (1) pour servir à provoquer la présentation dudit accouplement (12) dans la position sélectionnée parmi celles indiquées.
2. Mécanisme conforme à la revendication 1, caractérise en ce que ledit accouplement (12), dans ladite situation dégagée, applique une certaine contrainte audit organe de commande (11) de façon à résister à la rotation dudit organe de commande (11) par rapport audit boîtier (1).
3. Mécanisme conforme à la revendication 2, caractérise en ce que ledit accouplement (12) réagit à la rotation forcée dudit organe de commande (11) de sorte à dégager ladite contrainte.
4. Mécanisme conforme à la revendication 2 ou à la revendication 3, caractérisé en ce que ladite griffe d'entraînement (18) s'emboîte sur ledit organe de commande (11) dans ladite position d'entraînement dégagé de sorte à appliquer ladite contrainte sur ledit organe de commande (11).
5. Mécanisme conforme à la revendication 4, caractérisé en ce que ledit raccordement d'entraînement comporte une plaque rotative d'entraînement (15) reliée fonctionnellement audit pêne dormant (5) et ladite griffe d'entraînement (18) s'emboîte tant sur ledit organe de commande (11) que sur ladite plaque d'entraînement (15) dans ladite position d'entraînement de façon à assurer ainsi une interconnection d'entraînement entre l'organe de commande (11) et la plaque d'entraînement (15).
6. Mécanisme conforme à la revendication 5, caractérisé en ce que ladite griffe d'entraînement (18) est dégagée de toute prise sur ladite plaque d'entraînement (15) dans ladite position dégagée.
7. Mécanisme conforme à la revendication 6, caractérisé en ce que ladite griffe d'entraînement (18) reste en prise sur ledit organe de commande (11) dans ladite position dégagée et en ce qu'elle réagit à la rotation forcée dudit organe de commande (11) de sorte à être forcée hors de cette prise et à dégager ainsi ledit organe de commande (11) pour permettre la libre rotation dudit accouplement d'entraînement.
8. Mécanisme conforme à toute revendication 5 à 7, caractérisé en ce qu'une cheville (16) est fixée sur ladite plaque d'entraînement (15) pour une rotation solidaire de celle-ci et est placée en une position radiale extérieure par rapport à l'axe de rotation de ladite plaque d'entraînement (15), un ergot (35) sur ledit pêne dormant (5) s'emboîtant sur ladite cheville (16) de sorte à ce que ledit pêne dormant se déplace en fonction de la rotation de ladite plaque d'entraînement (15).
9. Mécanisme conforme à toute revendication précédente, caractérisé en ce que ledit accouplement (12) comporte un disque à came (17) monté rotativement par rapport audit boîtier (1) et pouvant s'engager sur ladite griffe d'entraînement (18) de sorte à influencer la position de ladite griffe d'entraînement (18), ledit disque à came (17) pouvant tourner en réaction aux mouvements dudit dispositif de manoeuvre (13).
10. Mécanisme conforme à la revendication 9, caractérise en ce que ladite griffe d'entraînement (18), dans ladite position de prise d'entraînement, s'emboîte sur ledit organe de commande (11) de sorte à suivre le mouvement de rotation dudit organe de commande (11) et s'emboîte également sur ledit disque à came (17) pour provoquer la rotation dudit disque avec ledit organe de commande (11).
11. Mécanisme conforme à la revendication 9 ou à la revendication 10, caractérisé en ce que ledit disque à came (17) peut pivoter par rapport audit organe de commande (11) entre une position fermée et une position ouverte, ledit dispositif de manoeuvre (13) pouvant servir à imprimer ladite rotation relative, et en ce que ladite griffe d'entraînement (18) passe en position dégagée en réaction au placement dudit disque à came (TT) dans ladite position fermée.
12. Mécanisme conforme à toute revendication 9 à 11, caractérisé en ce que ledit dispositif de manoeuvre (13) est une serrure à clé et en ce que des moyens de course morte (31, 32, 33) sont prévus dans le raccordement entre ladite serrure à clé (13) et ledit disque à came (17) de telle sorte à ce que ledit disque à came (17) pivote en réaction à une manoeuvre partielle seulement de ladite serrure à clé (13).
13. Mécanisme conforme à toute revendication précédente, caractérisé en ce que ledit boîtier (1) est creux et présente une plaque avant et une partie arrière ouverte, un orifice circulaire (25) étant pratiqué dans ladite plaque avant et ledit organe de commande (11) comportant une pièce manuelle (43) positionnée rotativement dans ledit orifice circulaire (25) et se projetant en avant de ladite plaque avant ainsi qu'une pièce de montage (14) venant buter contre une surface faisant face à l'arrière (44) de ladite plaque avant.
14. Mécanisme conforme à la revendication 13, caractérisé en ce que ladite pièce manuelle (43) fait partie intégrante de ladite pièce de montage (14).
EP86309861A 1985-12-18 1986-12-17 Pêne pour serrure Expired - Lifetime EP0229514B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPH393185 1985-12-18
AU3931/85 1985-12-18
AU66545/86A AU579757B2 (en) 1985-12-18 1986-12-15 Improved lock bolt mechanism

Publications (2)

Publication Number Publication Date
EP0229514A1 EP0229514A1 (fr) 1987-07-22
EP0229514B1 true EP0229514B1 (fr) 1990-04-04

Family

ID=25635148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86309861A Expired - Lifetime EP0229514B1 (fr) 1985-12-18 1986-12-17 Pêne pour serrure

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EP (1) EP0229514B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228244B1 (fr) * 1985-12-18 1990-04-11 Ogden Industries Pty. Ltd. Systèmes avec pêne de sécurité
DE3827418A1 (de) * 1988-08-12 1990-02-15 Daimler Benz Ag Schliesszylinder
AUPN804096A0 (en) * 1996-02-14 1996-03-07 Lockwood Australia Pty Ltd Key controlled latch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228244A1 (fr) * 1985-12-18 1987-07-08 Ogden Industries Pty. Ltd. Systèmes avec pêne de sécurité

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2286933A1 (fr) * 1974-10-01 1976-04-30 Gardenghi Aldo Perfectionnements aux serrures de securite

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228244A1 (fr) * 1985-12-18 1987-07-08 Ogden Industries Pty. Ltd. Systèmes avec pêne de sécurité

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Publication number Publication date
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