EP0839245B1 - Lock striker plate particularly for a lift - Google Patents

Abstract

The invention discloses a lock striker plate assembly to equip a door leaf, particularly a door, and particularly a landing door of a lift, and to co-operate in closing with the sliding bolt of a lock located opposite in the door frame, the said striker plate being inserted in the door edge of the door leaf (2) and fixed on one side (9) thereof by means of securing screws (10 and 11) passing through holes (12 and 13) located on either side of a bolt passage hole (25) of outside diameter substantially greater than that of the cylinder (7) of the striker plate, characterised in that the striker plate consists of three separate elements: a support element (14) globally omega-shaped with straight and mutually perpendicular sides; a cylinder (7) for the striker plate (1) to be set on the vertical side part (19) of the support element (14) between the two horizontal side parts (20 and 21); a rod (6) with its lower end (28) threaded from an intermediate stop (29) to pass through the smooth hole (27) of the base (26) of the cylinder (7) and to be screwed in the hole (31) provided with a nut (22) held at the bottom (19) of the support element (14).

Description

The present invention relates to a waste of the type intended to equip the leaf with a door in particular, a door elevator landing.

Such a keeper is intended to cooperate in closing with a lock bolt, said keeper being arranged opposite of the bolt in the frame of said door, in order to allow this one to get into it.

Said keeper is inserted into the rebate of the door and is attached to it on an internal field thereof by by means of fixing screws located on both sides of the bolt hole, with a diameter substantially greater than the external diameter of the strike cylinder.

If there is no particular difficulty in implementing place in the door, such a lock strike, when it is carried out at the time of manufacture of said door, by against it is not the same during a renovation where it is necessary to replace the striker on an existing door.

Indeed, in this case, the difficulty lies in the non-accessibility of the internal housing of the door leaf.

This implies the need to practice an opening front on a leaf panel or even, which is more generally practiced, to open the upper field of this leaf to slide a traditional keeper with one hand.

The installation is therefore carried out by sliding this traditional waste from the top of the door up bring its fixing holes opposite two holes leaf correspondents. The operator must then using use your other hand to tighten two fixing screws.

Such an operation is acrobatic to say the least. the operator and it usually follows a number unsuccessful attempts, resulting in the fall of the waste at the bottom of the leaf, before arriving at a positive result.

The object of the present invention is to remedy this disadvantage by proposing a waste to be mounted instead and place of a traditional waste by intervening on the leaf in an entirely external way.

Therefore, no opening should be made in the leaf and moreover, the intervention will be rapid and not tedious for the operator.

• un élément support globalement en forme d'oméga à pans droits et sensiblement perpendiculaires entre eux dont deux ailes latérales d'extrémité sont percées de trous équipés de filetage selon un entraxe correspondant à celui des trous de fixation réalisé sur le vantail et dont le fond, constitué par une branche verticale reliant deux branches horizontales, est également percé d'un trou équipé d'un écrou encagé librement sur ledit fond, la largeur "1" dudit élément support étant inférieure au diamètre du trou de passage du pêne du vantail;
• un cylindre de gache destiné à être rapporté sur le fond de l'élément support, le fond dudit cylindre étant également percé d'un trou lisse venant en regard de celui du fond de l'élément avec lequel ledit cylindre sera solidarisé;
• une tige centrale dont une extrémité inférieure est filetée à partir d'une butée et destinée à traverser le trou lisse du fond du cylindre de gache et à se visser dans l'écrou encagé librement sur le fond de l'élément support, ladite tige constituant ainsi également un élément de liaison de différentes parties constitutives de la gache.

To this end, the invention relates to a keeper of the type intended to equip the leaf of a door in particular a landing door of an elevator and to cooperate in closing with the bolt of a lock disposed opposite a frame of said door, said striker being introduced into the rebate of the leaf and fixed on a field thereof, by means of fixing screws passing through holes situated on either side of a passage hole of the bolt of substantially diameter greater than the outside diameter of a cylinder of the keeper, characterized in that the keeper consists of:

• a support element generally in the form of an omega with straight sides and substantially perpendicular to each other, two lateral end wings of which are pierced with holes fitted with threads at a center distance corresponding to that of the fixing holes made on the leaf and the bottom of which, consisting of a vertical branch connecting two horizontal branches, is also pierced with a hole fitted with a nut freely caged on said bottom, the width "1" of said support element being less than the diameter of the hole for passage of the leaf bolt;
• a keeper cylinder intended to be attached to the bottom of the support element, the bottom of said cylinder also being pierced with a smooth hole coming opposite that of the bottom of the element with which said cylinder will be secured;
• a central rod, a lower end of which is threaded from a stopper and intended to pass through the smooth hole in the bottom of the strike cylinder and to be screwed into the nut freely caged on the bottom of the support element, said rod constituting thus also a connecting element of different constituent parts of the keeper.

The present invention also relates to characteristics which will emerge during the description which will follow and which should be considered in isolation or according to all their possible technical combinations.

• la figure 1 est une vue en perspective éclatée montrant le montage d'une gache traditionnelle dans un vantail;
• la figure 2 est une vue en perspective d'un vantail muni d'une gache selon l'invention, représentée en regard d'un bâti traditionnel muni d'une serrure portant un pène de verrouillage;
• la figure 3 est une vue en perspective éclatée d'une gache selon l'invention en cours de montage dans la feuillure d'un vantail;
• la figure 4 est une vue schématique montrant les différentes phases de montage de la gache selon l'invention, dans la feuillure d'un vantail.

This description given by way of nonlimiting example will make it easier to understand how the invention can be implemented with reference to the accompanying drawings, in which:

• Figure 1 is an exploded perspective view showing the mounting of a traditional keeper in a leaf;
• Figure 2 is a perspective view of a leaf provided with a keeper according to the invention, shown opposite a traditional frame provided with a lock carrying a locking bolt;
• Figure 3 is an exploded perspective view of a keeper according to the invention during assembly in the rebate of a leaf;
• Figure 4 is a schematic view showing the different stages of mounting the keeper according to the invention, in the rebate of a leaf.

As generally represented on the Figure 2, the striker 1 is of the type intended to equip the leaf 2, for example of a landing door of an elevator, and cooperate in closing with a bolt 3 of a lock 4 arranged opposite in a frame 5 of said door with a rod 6 arranged coaxially in a strike cylinder 7 corresponding to the bolt 3 intended to be introduced therein, said striker 1 being inserted into the rebate 8 of the leaf 2 and fixed on a field 9 thereof, by means of two screws fixing 10 and 11 through two holes 12 and 13 located from on either side of a passage hole 25 of the bolt 3 of diameter significantly greater than the external diameter of cylinder 7 of the keeper 1.

• un élément support 14 globalement en forme d'oméga à pans droits et sensiblement perpendiculaires entre eux dont deux ailes latérales d'extrémité 15 et 16 sont percées de trous et équipées de filetage 17, 18 selon un entraxe correspondant à celui des trous de fixation 12 et 13 réalisés sur le vantail 2 et dont le fond, constitué par une branche verticale 19 reliant deux branches horizontales 20, 21, est également percé d'un trou 31 équipé d'un écrou 22 engagé sur le fond 19, la largeur "1" dudit élément support 14 étant inférieure au diamètre D du trou de pêne 25 du vantail 2;
• un cylindre 7 de gache 1 destiné à être rapporté sur la branche verticale 19 de l'élément support 14 et dont le fond 26 est également percé d'un trou lisse 27 venant en regard de celui 22 de la branche verticale 19 avec laquelle ledit cylindre 7 sera solidarisé;
• une tige centrale 6 dont une extrémité inférieure 28 est filetée à partir d'une butée 29 et destinée à traverser le trou lisse 27 du fond 26 du cylindre 7 de gache 1 et à se visser dans l'écrou 22 engagé librement sur le fond 19 de l'élément support 14, ladite tige centrale 6 constituant ainsi également un élément de liaison de différentes parties constitutives de la gache 1.

According to the invention, the keeper 1 consists of:

• a support element 14 generally in the form of an omega with straight sides and substantially perpendicular to each other, two lateral end wings 15 and 16 of which are pierced with holes and equipped with threads 17, 18 at a center distance corresponding to that of the fixing holes 12 and 13 made on the leaf 2 and the bottom of which, consisting of a vertical branch 19 connecting two horizontal branches 20, 21, is also pierced with a hole 31 fitted with a nut 22 engaged on the bottom 19, the width "1 "said support element 14 being less than the diameter D of the bolt hole 25 of the leaf 2;
• a striker cylinder 7 intended to be attached to the vertical branch 19 of the support element 14 and whose bottom 26 is also pierced with a smooth hole 27 coming opposite that 22 of the vertical branch 19 with which said cylinder 7 will be united;
• a central rod 6, a lower end 28 of which is threaded from a stop 29 and intended to pass through the smooth hole 27 in the bottom 26 of the striker cylinder 7 and to be screwed into the nut 22 freely engaged on the bottom 19 of the support element 14, said central rod 6 thus also constituting a connecting element of various constituent parts of the keeper 1.

According to the example shown, the threaded holes 17 and 18 lateral end wings 15 and 16 of the support element 14 are made directly on its wings.

We could also imagine that the holes threaded 17 and 18 side wings 15 and 16 are made by caged nuts added in oblong lights said wings 15 and 16 so as to adapt to the spacing of the corresponding fixing holes 12 and 13 of leaf 2.

According to another characteristic of the invention, the threaded hole 31 in the bottom 19 of the support element 14 is fitted a caged nut 22 attached to the hole 31 which is formed by an oblong light, so as to struggle with it freely in a longitudinal direction at the time of assembly, then to authorize a centering of the cylinder 7 of striker 1 and of the rod 6 which is screwed into it and consequently of the cylinder 7 of waste 1 by compared to bolt 3 with which it is likely to cooperate.

As shown in Figure 3, the oblong lumen 31 of the base 19 of the element: support 14 is a circular hole extending radially in a longitudinal direction by a straight extension, like a buttonhole.

According to another characteristic of the invention, the striker can be adjusted in depth in the leaf, obtained by inserting shim washers 40 between the bottom 26 of said cylinder 7 of striker 1 and the bottom 19 of the element support 14.

The invention also relates to the mounting method of the keeper 1 described above.

• dissociation de ses différents éléments constitutifs, à savoir:
  • l'élément support 14 en forme d'oméga;
  • le cylindre de gache 7;
  • la tige centrale 6;
• montage par vissage de la tige 6 sur l'élément support 14, sans le cylindre 7 de gache 1, ladite tige 6 devenant ainsi un outil de préhension;
• préhension manuelle de l'élément support 14 par l'intermédiaire de la tige 6 et inclinaison de l'ensemble vers le bas, provoquant un retournement de l'élément support 14 d'environ 90° par rapport à la position horizontale de la tige 6;
• introduction frontale depuis l'extérieur, de la branche verticale inférieure 21 de l'élément support 14 dans le trou de pène 25 du vantail 2;
• basculement de l'élément support 14 pour un retour progressif vers une position horizontale de la tige 6 en maintenant celle-ci dans une zone inférieure du trou de pène 25 jusqu'à passage de la branche supérieure 20 de l'élément support 14 de l'autre côté dudit trou 25;
• mise en regard des trous filetés 17 et 18 de l'élément support 14 avec les trous de fixation 12, 13 dans la feuillure du vantail 2 en tirant vers soi à l'aide de la tige 6;
• vissage des deux vis de fixation 10, 11 sans blocage;
• retrait de la tige 6 par dévissage;
• mise en place du cylindre 7 de gache 1 entre les ailes horizontales 20, 21 de l'élément support 14 en place, par introduction frontale à travers le trou 25 de pène 3;
• mise en place de la tige 6 par vissage dans l'écrou engagé 22 du fond 19 de l'élément support 14 après avoir traversé le fond 26 du cylindre 7 de gache 1;
• réglage dans un plan vertical du cylindre 7 de gache 1 et de la tige 6, par rapport au pêne 3 fixe du bâti, par l'intermédiaire de la lumière oblongue 31 dans laquelle peut se déplacer l'écrou encagé 22, non encore immobilisé;
• éventuellement, insertion de rondelles de calage 40 derrière le cylindre 7 de gache 1 afin d'obtenir un réglage de celui-ci et de la tige 6 dans un plan horizontal;
• immobilisation de la gache 1 en position, par serrage des vis de fixation 10 et 11 et de la tige 6.

Such an assembly is carried out according to the following steps:

• dissociation of its various constituent elements, namely:
  • the support element 14 in the form of an omega;
  • the strike cylinder 7;
  • the central rod 6;
• mounting by screwing the rod 6 on the support element 14, without the striker cylinder 7, said rod 6 thus becoming a gripping tool;
• manual gripping of the support element 14 by means of the rod 6 and inclination of the assembly downwards, causing the support element 14 to overturn by approximately 90 ° relative to the horizontal position of the rod 6 ;
• frontal introduction from the outside, of the lower vertical branch 21 of the support element 14 into the bolt hole 25 of the leaf 2;
• tilting of the support element 14 for a gradual return to a horizontal position of the rod 6 while maintaining the latter in a lower region of the bolt hole 25 until passage of the upper branch 20 of the support element 14 of the 'other side of said hole 25;
• facing the threaded holes 17 and 18 of the support element 14 with the fixing holes 12, 13 in the rebate of the leaf 2 by pulling towards you using the rod 6;
• screwing the two fixing screws 10, 11 without blocking;
• removal of the rod 6 by unscrewing;
• positioning of the strike cylinder 7 1 between the horizontal wings 20, 21 of the support element 14 in place, by frontal introduction through the hole 25 of bolt 3;
• introduction of the rod 6 by screwing into the nut 22 engaged from the bottom 19 of the support element 14 after having crossed the bottom 26 of the cylinder 7 of striker 1;
• adjustment in a vertical plane of the cylinder 7 of striker 1 and of the rod 6, relative to the fixed bolt 3 of the frame, by means of the oblong slot 31 in which the caged nut 22, which is not yet immobilized, can move;
• possibly, insertion of wedging washers 40 behind the cylinder 7 of striker 1 in order to obtain an adjustment of the latter and of the rod 6 in a horizontal plane;
• immobilization of the keeper 1 in position, by tightening the fixing screws 10 and 11 and the rod 6.

Claims (7)

1. Keeper (1) of the type intended to equip the leaf (2) of a door, notably the landing door of a lift, and to cooperate in closure with the bolt (3) of a lock (4) disposed opposite the frame (5) of the said door, the said keeper (1) being inserted in the rebate (8) of the leaf (2) and fixed to a field (9) thereof, by means of fixing screws (10 and 11) passing through holes (12 and 13) situated on each side of a passage hole (25) for the bolt (3) with a diameter substantially greater than the outside diameter of a cylinder (7) on the keeper (1), characterised in that the keeper consists of:

   a support element (14) roughly in the shape of an omega with straight faces substantially perpendicular to each other, two lateral end wings (14 and 16) of which have in them holes equipped with a thread (17, 18), at a distance between centres corresponding to that of the fixing holes (12 and 13) produced on the leaf (2), and the base of which, consisting of a vertical branch (19) connecting two horizontal branches (20, 21), also has in it a hole (31) equipped with a nut (22) engaged freely on the said base (19), the width "1" of the said support element (14) being less than the diameter (D) of the passage hole (25) for the bolt (3) in the leaf (2) ;

   a cylinder (7) on the keeper (1) intended to be attached to the base (19) of the support element (14), the end (26) of the said cylinder (7) also having in it a smooth hole (27) coming opposite the hole (31) in the base (19) of the element (14) with which the said cylinder (7) will be connected;

   a central rod (6), a bottom end (28) of which is threaded as from a stop (29) and which is intended to pass through the smooth hole (27) in the end (26) of the keeper cylinder (1) and to be screwed into the nut (22) engaged freely on the base (19) of the support element (14), the said rod (6) thus also constituting an element for connecting different constituent parts of the keeper (1).
2. Keeper according to Claim 1, characterised in that the threaded holes (17 and 18) in the lateral end wings (15 and 16) of the support element (14) are produced directly on its wings.
3. Keeper according to Claim 1, characterised in that the threaded holes (17 and 18) in the lateral wings (15 and 16) consist of caged nuts attached in oblong apertures in the said wings (15 and 16) so as to adapt to the distance between centres of the corresponding fixing holes (12 and 13) in the leaf (2).
4. Keeper according to Claim 1, characterised in that the hole (31) in the base (19) of the support element (14) is equipped with a caged nut (22) attached in the hole (31) which consists of an oblong aperture, so as to move therein freely in a longitudinal direction at the time of fitting, and then to allow a centring of the cylinder (7) on the keeper (1) and of the rod (6) which is screwed therein and consequently of the cylinder (7) on the keeper (1) with respect to the bolt (3) with which it is able to cooperate.
5. Keeper according to Claim 4, characterised in that the oblong aperture (31) in the base (19) of the support element (14) is a circular hole extending radially in a longitudinal direction through a rectilinear extension, like a buttonhole.
6. Keeper according to Claim 1, characterised in that an adjustment for depth of the cylinder (7) on the keeper (1) and of the rod (6) in the leaf is obtained by the insertion of shims (40) between the end (26) of the said cylinder (7) in the keeper (1) and the base (19) of the support element (14).
7. Method of mounting the keeper, according to one of Claims 1 to 6, characterised in that it is effected according to the following steps:

   disconnection of its various constituent parts, namely:

   the support element (14) in the shape of an omega;

   the keeper cylinder (7) ;

   the central rod (6);

   mounting of the rod (6) by screwing onto the support element (14), without the cylinder (7) on the keeper (1), the said rod (6) thus becoming a gripping tool;

   manual gripping of the support element (14) by means of the rod (6) and tilting of the assembly downwards, causing a turning of the support element (14) through approximately 90° with respect to the horizontal position of the rod (6);

   frontal insertion, from the outside, of the lower vertical branch (21) of the support element (14) in the bolt hole (25) in the leaf (2);

   tilting of the support element (14) for a progressive return towards a horizontal position of the rod (6) whilst maintaining this in a lower area of the bolt hole (25) until the top branch (20) of the support element (14) passes on the other side of the said hole (25);

   putting the threaded holes (17 and 18) in the support element (14) opposite the fixing holes (12, 13) in the rebate on the leaf (2) whilst pulling towards oneself by means of the rod (6);

   screwing of the two fixing screws (10, 11) without locking;

   removal of the rod (6) by unscrewing;

   fitting of the cylinder (6) on the keeper (1) between the horizontal wings (20, 21) of the support element (14) in place, by frontal insertion through the hole (25) for the bolt (3);

   fitting of the rod (6) by screwing into the engaged nut (22) on the base (19) of the support element (14) after having passed through the end (26) of the cylinder (7) on the keeper (1) ;

   adjustment in a vertical plane of the cylinder (7) on the keeper (1) and of the rod (6), with respect to the fixed bolt (3) of the frame, by means of the oblong aperture in which the caged nut (22), not yet immobilised, can move;

   if necessary, insertion of shims (40) behind the cylinder (7) on the keeper (1) in order to obtain an adjustment thereof and of the rod (6) in a horizontal plane;

   immobilisation of the keeper (1) in position, by tightening the fixing screws (10 and 11) and the rod (6).

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