EP0574629B1 - Serrure à larder - Google Patents

Serrure à larder Download PDF

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Publication number
EP0574629B1
EP0574629B1 EP19920305656 EP92305656A EP0574629B1 EP 0574629 B1 EP0574629 B1 EP 0574629B1 EP 19920305656 EP19920305656 EP 19920305656 EP 92305656 A EP92305656 A EP 92305656A EP 0574629 B1 EP0574629 B1 EP 0574629B1
Authority
EP
European Patent Office
Prior art keywords
housing
bolt
latch bolt
deadlocking
rear end
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
EP19920305656
Other languages
German (de)
English (en)
Other versions
EP0574629A1 (fr
Inventor
Aaron M. Fish
Jean Paul Dausseing
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.)
Ilco Unican Inc
Original Assignee
Ilco Unican Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ilco Unican Inc filed Critical Ilco Unican Inc
Priority to DE1992615503 priority Critical patent/DE69215503T2/de
Priority to EP19920305656 priority patent/EP0574629B1/fr
Publication of EP0574629A1 publication Critical patent/EP0574629A1/fr
Application granted granted Critical
Publication of EP0574629B1 publication Critical patent/EP0574629B1/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
    • E05B59/00—Locks with latches separate from the lock-bolts or with a plurality of latches or lock-bolts

Definitions

  • Mortise locks are well known in the art as illustrated in, for example, U.S. Patent 1,280,993, Hammer, October 8, 1918; U.S. Patent 2,519,808, Young et al, August 22, 1950; U.S. Patent 3,073,143, Eads, January 15, 1963; U.S. Patent 3,361,462, Foster, January 2, 1968; U.S. Patent 4,950,005, Cudd, August 21, 1990; and U.S. Patent 4,389,061, Foshee, June 21, 1983.
  • U.S. Patent 1,280,993 teaches a camming member 16 acting on the camming surface of plate 14.
  • auxiliary bolt 3 which is biased outwardly by spring 4 has an abutment 9 which, by blocking movement of cam 8, holds deadbolt latch 6 in its retracted position when auxiliary latch 3 is extended.
  • abutment 9 is moved to unblock cam 8 which rotates counter-clockwise, urged by spring 7, to extend deadbolt 6 and hold it in a locked condition.
  • U.S. Patent 3,073,143 teaches the use of a cam 61 having an extension 62.
  • the extension engages arm 49 for retracting latch 19.
  • U.S. Patent 3,361,462 teaches a retractable latch 18, biased outwardly by spring 21, and being connected, via stem 19, to abutment 24.
  • EP-A-0 312 654 discloses a safety lock according to the first part of claim 1 and having a latch bolt, a deadbolt and an auxiliary bolt.
  • a deadlocking lever normally prevents retraction of the latch bolt. Under the action of a lever 6, the deadlocking lever is brought into an unlocked position. The lever further engages with engagement means mounted on a latch bolt tail extending from the rear end of the latch bolt to draw the latch bolt into its opening position.
  • US 4 118 056 also discloses a mortice lock having a latch bolt, a deadlock and an auxiliary bolt in which a deadlocking lever normally prevents retraction of the latch bolt.
  • Rotation of an inner hub 46 brings a rollback surface 54 into engagement with a rollback shoe 64.
  • Motion of the retractor shoe towards the rear plate of the housing forces a retractor 50 rearwards, which brings the deadlocking lever in to an unlocked position and draws the latch bolt back into the housing.
  • the invention provides a mortise lock mechanism for mounting on a door and for use with rotatable handle means mounted on the inside and outside of said door, comprising:
  • a mortise lock mechanism for mounting on a door and for use with rotatable handle means mounted on the inside and outside of said door, comprising;
  • the latch bolt mechanism is housed in a box-like housing 1 whose front opening is covered by a front plate 3.
  • the front plate 3 is mounted on an end 5 of a door 7 and attached thereto by screws or the like.
  • the box-like structure as is well known in the art, extends into an end opening in the door.
  • handle means 29' is connected to spindle 27' through an electric combination lock 100 such that, when the correct combination is punched into the lock 100, the spindle 27' will rotate with handle means 29'.
  • Deadbolt hub opening 31 which is included only on the inside of the door, receives a spindle 33 of a turnknob 35.
  • Indentations 37 and 37' are included in both side walls 21 and 23 respectively and are aligned with each other. The purposes of these slots are described below.
  • the mechanism includes a latch bolt 39, which, in Figure 2 is shown extended. Auxiliary bolt 41 is shown retracted as is also deadbolt 43.
  • the latch bolt 39 includes an antifriction means 40, as well known in the art. It also includes a front end 45 and a rear end 47. Extending from the rear end 47 is a latch bolt tail 49 which extends in the direction of the back wall 19 and terminates in a rear end 51 spaced from back wall 19. Mounted on the latch bolt tail 49 is an engagement means 53.
  • Latch bolt 39 is biased outwardly of the housing by a spring illustrated at 50 in Figure 2.
  • Latch bolt hub follower 57 has a first end 59 which is mounted for rotation with spindle 27 and, therefore, with handle means 29.
  • the latch bolt hub follower 57 has a second end 61 which includes an abutment surface which abuts the engagement means 53 as will be described below.
  • a deadlocking lever 63 has a first end 65 and a second end 67 and post 66 extends upwardly from lever 63 between ends 65 and 67 thereof.
  • the first end is mounted on pin 69 for rotation thereabout.
  • Included at the second end is a downwardly extending finger 71 and a downwardly extending claw 73 which is spaced from the downwardly extending finger 71.
  • Deadlocking lever 63 is biased downwardly by a spring shown at 60.
  • Auxiliary bolt 41 has a front end 74 and a top surface 75.
  • a recess 77 is included in the top surface 75 and, under stated conditions, finger 71 will extend into the recess 77.
  • Auxiliary bolt 41 is biased outwardly of the housing by a spring shown at 70.
  • Deadbolt 43 includes a front end 79 and a rear end 81. Extending from the rear end 81 is a deadbolt tail 83 having a top edge 85 and a bottom edge 87. A camming surface, including arced portions 89, 91 and 93 is defined in the bottom surface of the deadbolt tail 83.
  • Deadbolt hub follower 93 has a first end 97 which is mounted for rotation with spindle 33 of turnknob 35.
  • the deadbolt hub follower 95 also has a second end 99 which includes a circular engagement means 101.
  • the radii of the arced Portions 89, 91 and 93 are equal to the radius of the circular engagement means 101. These radii are joined by straight lines 103 and 105.
  • An emergency lever 107 extends within the housing along the length thereof.
  • the emergency lever has a first end 109 which is mounted for pivoting about a pin 111.
  • the second end, 113, of the emergency lever comprises an abutment end.
  • the emergency lever also includes portions 115, adjacent rear end 81 of the deadbolt 43, and 117, adjacent the rear end 47 of latch bolt 39. Indentation 37 fits into slot 119 in 83 as discussed below.
  • the handle means has to be turned in a clockwise direction as seen in Figure 2.
  • the spindle 27 will also rotate in a clockwise direction whereupon latch bolt hub follower 57 will also rotate in a clockwise direction.
  • the abutting edge of the second end 61 of the latch bolt hub follower 57 will first abut the post 66 of the deadlocking lever 63 to force the post upwardly. This will cause the deadlocking lever 63 to pivot in a clockwise direction.
  • latch bolt hub follower 57 While the abutting edge of the latch bolt hub follower 57 is still maintaining contact with post 66, to thereby keep deadlocking lever 63 in its upward position, the abutting edge of latch bolt hub follower 57 engages the engagement means 53 to drive it towards back wall 19 and to thereby drive latch bolt tail 49 and latch bolt 39 in the same direction. Accordingly, the latch bolt 39 is retracted into the housing.
  • the spacings of post 66 and latch bolt pusher 53 are so arranged that, when the abutting edge of latch bolt hub follower 57 no longer contacts the post 66, so that deadlocking lever 63 will not be held in its upward position by the latch bolt hub follower 57, the top surface of latch bolt 39 will underlie the bottom surface of claw 73 thus maintaining latch bolt hub follower 57 in its upward position.
  • the latch bolt When the door is now closed, the latch bolt will first be retracted, with the aid of the antifriction 40, and, when the door is fully closed and the latch bolt is aligned with the latch bolt strike opening, the latch bolt will once again be extended out of the housing, as shown in Figure 2, by the action of spring 50.
  • the auxiliary bolt will cam against the auxiliary bolt strike so that it will be retracted into the housing, against the action of spring 70, in the position as shown in Figure 2.
  • spring 60 will force deadlocking 63 downwardly so that finger 71 of deadlocking lever 63 will fall into the recess 77 of the auxiliary bolt 41 and claw 73 will once again prevent the latch bolt 39 from being retracted into the housing. Accordingly, the door will be automatically locked when it is closed.
  • the deadbolt 43 is extended into its deadbolt strike opening.
  • the turnknob 35 is rotated in a counter-clockwise direction to thereby rotate deadbolt hub follower 95 in a counter-clockwise direction.
  • the circular engagement means 101 of the deadbolt hub follower 95 will engage the arced portions 93, 91 and 89 respectively of the camming surface to drive deadbolt tail 83 leftwardly whereby deadbolt 43 is extended out of the housing as shown in Figure 5.
  • the emergency lever 107 will be forced into the position shown in Figure 5 and the circular engagement means 101 will abut the abutment edge of the second end 113 of the emergency lever 107. Accordingly, portion 115 of the emergency lever will abut the rear end 81 of the deadbolt, and portion 117 of the emergency lever will abut the rear end 47 of the latch bolt. Accordingly, it will not be possible to force the latch bolt 39 or the deadbolt 43 into the casing into their retracted positions.
  • a switch (not shown) will be activated to automatically change the combination of the electronic combination lock and to set up instead an emergency combination. Accordingly, anyone inserting the ordinary combination will not be able to connect the handle means 29' with the spindle 27' under these conditions. However, anyone having the emergency combination (for example the Management of a hotel in which the lock may be installed) will be able to connect the handle 29' with the spindle 27'. As will be seen, by using the emergency combination, it is possible to defeat the privacy connection and to unlock the door.
  • the hub 57 comprises a split hub as illustrated in Figure 6.
  • the split hub comprises the parts 57 and 57' disposed on either side of the latch bolt tail 49.
  • the engagement means 55 will also be split in two parts, 55 and 55', disposed about the deadlocking lever 63.
  • the deadlocking lever will include a post 66 on one side and a post 66' on the other side as seen in Figure 6.
  • the operation of the split hub arrangement is identical to the operation as above described.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (8)

  1. Mécanisme de serrure à larder, pour montage sur une porte et utilisation avec un dispositif de poignées tournantes montées du côté intérieur et du côté extérieur de ladite porte, qui comprend :
    un boîtier (1) comportant une paroi arrière (19), et une plaque avant (3) de fermeture du boîtier ;
    au moins un premier passage (9) ménagé dans la dite plaque avant ;
    un pêne à demi-tour (39), ayant une extrémité avant (45) et une extrémité arrière (47), monté dans ledit boîtier de sorte que ladite extrémité avant peut être rétractée à l'intérieur dudit boîtier et sortie dudit boîtier à travers ledit premier passage (9) ;
    une queue de pêne à demi-tour (49) s'étendant à partir de ladite extrémité arrière dudit pêne à demi-tour, vers ladite paroi arrière (19), et se terminant à une extrémité arrière de queue de pêne à demi-tour (51) espacée de ladite paroi arrière ;
    un élément de contact (53) monté sur ladite queue de pêne à demi-tour (49) près de l'extrémité arrière de celle-ci ; et
    un levier de verrouillage (63) comportant un élément de retenue du pêne à demi-tour pour empêcher la rétraction du pêne à demi-tour (39),ayant une extrémité avant (67) et une extrémité arrière (65) et étant monté dans ledit boîtier pour pivotement à son extrémité arrière;
    caractérisé en ce que ledit mécanisme de serrure comprend en outre :
    une colonnette (66) montée sur ledit levier de verrouillage (63) ;
    un bras de moyeu (57) ayant une première extrémité (59) et une deuxième extrémité (61), ledit bras de moyeu étant monté dans ledit boîtier pour rotation avec ledit dispositif de poignées (29) à la première extrémité du bras,ladite deuxième extrémité dudit bras de moyeu présentant un bord de butée ;
    de sorte que, lorsque ledit bras de moyeu (57) tourne du fait de la rotation dudit dispositif de poignées, ledit bord de butée attaque d'abord ladite colonnette (66), pour provoquer un pivotement dudit levier de verrouillage (63) autour de ladite extrémité arrière (65) dudit levier de verrouillage (63) afin de le dégager du pêne à demi-tour, et il attaque ensuite ledit élément de contact (53) sur ladite queue de pêne à demi-tour (49) de manière à entraîner ledit élément de contact (63),et donc ladite queue de pêne à demi-tour (49) et ledit pêne à demi-tour (39), vers ladite paroi arrière afin de rétracter ledit pêne à demi-tour à l'intérieur dudit boîtier.
  2. Mécanisme suivant la revendication 1, qui comprend un pêne auxiliaire (41) ayant une extrémité avant et une extrémité arrière et monté dans ledit boîtier de sorte que ladite extrémité avant peut être rétractée à l'intérieur du dit boîtier et sortie de celui-ci à travers un deuxième passage (11), ledit pêne auxiliaire s'étendant vers ladite paroi arrière (19) et se terminant à une extrémité arrière de pêne auxiliaire espacée de ladite paroi arrière :
    ledit boîtier (1) comprenant en outre une paroi supérieure (15) et une paroi inférieure (17) ;
    ledit pêne auxiliaire ayant un bord supérieur (76) en regard de ladite paroi supérieure (15), et un évidement (77) ménagé dans ledit bord supérieur ;
    un doigt (71) s'étendant à ladite extrémité avant dudit levier de verrouillage (63), vers la paroi inférieure du boîtier, et disposé par rapport audit évidement dudit bord supérieur dudit pêne auxiliaire (41) de sorte que, dans une position prédéterminée dudit pêne auxiliaire, ledit doigt pénètre dans ledit évidement ; et
    une griffe (73) prévue à l'extrémité avant dudit levier de verrouillage (63) et espacée dudit doigt (71).
  3. Mécanisme suivant une quelconque des revendications précédentes, et comprenant un ressort de levier de verrouillage (60) pour rappeler ledit levier de verrouillage (63) vers la paroi inférieure dudit boîtier.
  4. Mécanisme suivant la revendication 2 ou la revendication 3 et comprenant un ressort de pêne auxiliaire (70) pour rappeler ledit pêne auxiliaire (41) vers l'extérieur dudit boîtier.
  5. Mécanisme suivant une quelconque des revendications précédentes, comprenant un ressort de pêne à demi-tour pour rappeler ledit pêne à demi-tour vers l'extérieur dudit boîtier.
  6. Mécanisme suivant une quelconque des revendications précédentes, dans lequel ledit- bras de moyeu (57) est un bras de moyeu subdivisé comportant un bras de moyeu intérieur (57) et un bras de moyeu extérieur (57'),
       ledit bras de moyeu intérieur étant monté pour rotation avec ladite poignée (29) placée du côté intérieur deladite porte, et ledit bras de moyeu extérieur étant monté pour rotation avec ladite poignée (29') placée du côté extérieur de ladite porte.
  7. Mécanisme suivant une quelconque des revendications 2 à 6, comprenant en outre :
    un troisième passage (31) ménagé dans ladite plaque avant ;
    un pêne dormant (43) ayant une extrémité avant (79) et une extrémité arrière (81) est monté dans ledit boîtier de sorte que ladite extrémité avant peut être rétractée à l'intérieur dudit boîtier et sortie de celui-ci à travers ledit troisième passage (31) ;
    une queue de pêne dormant (83) s'étendant à partir de l'extrémité arrière dudit pêne dormant (43), vers la dite paroi arrière, et se terminant à une extrémité arrière de queue de pêne dormant espacée de ladite paroi arrière ;
    ledit pêne dormant ayant un bord supérieur (85) et un bord inférieur (87) ;
    ledit bord inférieur définissant une surface de came qui comporte trois parties arquées (89,91,93) ;
    un bras de moyeu de pêne dormant (95) ayant une première extrémité (97) et une deuxième extrémité (99) et monté dans ledit boîtier pour rotation avec ledit bouton tournant, à ladite première extrémité, ladite deuxième extrémité dudit bras de moyeu de pêne dormant comportant un élément de contact circulaire (101) pour contact avec la dite surface de came ;
    de sorte que, lorsque ledit bras de moyeu de pêne dormant tourne dans une première direction, ledit pêne dormant est rétracté à l'intérieur dudit boîtier et, lorsque ledit bras de moyeu de pêne dormant tourne dans l'autre direction, ledit pêne dormant s'étend à l'extérieur dudit boîtier.
  8. Serrure à larder suivant la revendication 7, et comprenant un levier de secours (107) disposé à l'intérieur du boîtier et s'étendant sur la longueur du boîtier ;
    ledit levier de secours ayant une première extrémité (109) disposée près de la paroi inférieure dudit boîtier, et étant monté à la première extrémité pour pivotement autour de celle-ci ;
    ledit levier de secours ayant une deuxième extrémité (113) qui présente une partie de butée, ladite partie de butée étant située de manière à buter contre le dit élément de contact circulaire (101) ;
    ledit levier de secours présentant en outre une partie de butée d'extrémité arrière de pêne dormant (115) et une partie de butée d'extrémité arrière de pêne à demi-tour (117) ;
    de sorte que, lorsque ledit mécanisme est dans un état verrouillé, ladite deuxième extrémité dudit levier de secours bute contre ledit élément de contact circulaire, ladite partie de butée d'extrémité arrière de pêne dormant (115) bute contre ladite extrémité arrière de pêne dormant (81) et ladite partie de butée d'extrémité arrière de pêne à demi-tour (117) bute contre ledit pêne à demi-tour (39) ;
    de sorte que ledit pêne à demi-tour et ledit pêne dormant ne peuvent pas être rétractés à l'intérieur dudit boîtier.
EP19920305656 1992-06-19 1992-06-19 Serrure à larder Expired - Lifetime EP0574629B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1992615503 DE69215503T2 (de) 1992-06-19 1992-06-19 Einsteckschloss
EP19920305656 EP0574629B1 (fr) 1992-06-19 1992-06-19 Serrure à larder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19920305656 EP0574629B1 (fr) 1992-06-19 1992-06-19 Serrure à larder

Publications (2)

Publication Number Publication Date
EP0574629A1 EP0574629A1 (fr) 1993-12-22
EP0574629B1 true EP0574629B1 (fr) 1996-11-27

Family

ID=8211406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920305656 Expired - Lifetime EP0574629B1 (fr) 1992-06-19 1992-06-19 Serrure à larder

Country Status (2)

Country Link
EP (1) EP0574629B1 (fr)
DE (1) DE69215503T2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU690580B2 (en) * 1993-11-09 1998-04-30 Austral Lock Pty Ltd A lock
US8997534B2 (en) 2012-07-25 2015-04-07 Schlage Lock Company Llc Privacy override function for a door lock

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118056A (en) * 1977-04-04 1978-10-03 Emhart Industries, Inc. Mortise lock
DE3783371D1 (de) * 1987-10-22 1993-02-11 Drim Ltd Sicherheitsschloss.

Also Published As

Publication number Publication date
DE69215503D1 (de) 1997-01-09
EP0574629A1 (fr) 1993-12-22
DE69215503T2 (de) 1997-03-27

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