EP1818483A1 - Lock for temporarily blocking a barrier or door relative to a frame - Google Patents

Abstract

The lock, located e.g. inside an upright side member of a gate, has a spring-loaded bolt (3) that slides between locked and unlocked positions, a limiter pin (5), and a rotary guide with a cam slot for the pin, connected to a drive mechanism. The drive mechanism contains rubber, elastomer or plastic friction elements (9) between discs (6, 10) and is operated by successive lengthwise and rotary movements of a handle (2).

Description

• -- un pêne coulissant entre une première position extrême rétractée (libérant ladite porte) et une seconde position extrême active (bloquant la porte) ;
• -- un moyen de rappel du pêne vers l'une des dites positions extrêmes ;
• -- une goupille fixée sur ledit pêne ;
• -- un guide rotatif incorporant une partie formant came associée à ladite goupille;
• -- une poignée liée audit guide par un mécanisme d'entraînement.

The present invention relates to a lock for temporarily blocking a barrier or door, with respect to a frame, of the type comprising:

• - A bolt sliding between a first retracted extreme position (releasing said door) and a second extreme active position (blocking the door);
• a means for returning the bolt towards one of said extreme positions;
• - a pin fixed on said bolt;
• a rotary guide incorporating a camming portion associated with said pin;
• a handle connected to said guide by a drive mechanism.

Such locks are already known, intended in particular for the temporary closing or the locking in the closed position, temporarily, of a door or a barrier.
More particularly, the invention is applicable to garden fence or fence locks, and more particularly to fence enclosing a swimming pool or swimming pool.

Locks, in general, must be able to fulfill two relatively contradictory functions: firstly to reliably block a door or a barrier, and secondly to allow the opening, that is to say the unlocking, of said door or barrier easily and quickly.

In the case of fence fence surrounding a pool, or a place with restricted access, these constraints are stronger. For security reasons, it is important for unauthorized persons, including children, to be unable to open the door in the closed position, without opening the door. barrier by authorized persons, is not too complicated, and in any case does not require a key.

Known locks in such applications are not fully satisfactory with respect to these requirements.

The invention provides an improved lock, allowing access to authorized persons, simply and quickly without tools or keys, while preventing access to a certain category of people, including children, or even pets whose the ability to adapt and understand the mechanisms can allow them to open a barrier or door.

• -- un pêne coulissant entre une première position extrême rétractée (libérant ladite porte) et une seconde position extrême active (bloquant la porte) ;
• -- un moyen de rappel du pêne vers l'une des dites positions extrêmes ;
• -- une goupille fixée sur ledit pêne
• -- un guide rotatif incorporant une partie formant came associée à ladite goupille;
• -- une poignée liée audit guide par un mécanisme d'entraînement,

est caractérisée en ce que ledit mécanisme d'entraînement est du type débrayable.To this end, according to the invention, the lock for the temporary blocking of a pivoting element, such as a barrier or a door, with respect to a frame, of the type comprising:

• - A bolt sliding between a first retracted extreme position (releasing said door) and a second extreme active position (blocking the door);
• a means for returning the bolt towards one of said extreme positions;
• a pin fixed on said bolt
• a rotary guide incorporating a camming portion associated with said pin;
• a handle linked to said guide by a drive mechanism,

is characterized in that said drive mechanism is of the disengageable type.

Advantageously, the drive mechanism is actuated by two successive movements of the handle, and more specifically, a first translational movement, and a second rotational movement.

In particular, said drive mechanism comprises friction means between the handle and the guide.

Advantageously, the lock comprises a driving element, linked to the handle, capable of moving in translation and coming into contact with a driven element, connected to the guide by means of said friction means.

Specifically, said driving element is a disk, and in that said friction means consist of an element made of elastomer material, rubber, plastic, with a high coefficient of friction, and the driven element constitutes an intermediate between the friction means. and said guide.

Said driven element is formed of a spacer, attached to said guide.

The lock comprises a return spring of the driving element towards one of its extreme positions.

In order to improve the retention of the bolt in the striker, even when a force, intentional or accidental, is applied to the amount carrying the lock, or to the gate or movable barrier, the lock also comprises means for guiding and holding the bolt, consisting on the one hand of a guide plate fixed on the movable barrier (gate) and comprising an elongated cutout, and on the other hand of a sleeve fixed on the lock, in which is able to move in translation said bolt, the sleeve being able to penetrate into said cutout, and further including a projecting element adapted to bear against said plate.

More specifically, said sleeve comprises a first cylindrical portion extended by a cone-shaped flange relatively flattened.

The invention will be better understood in the light of the accompanying drawings, representing embodiments of the invention, shown by way of illustrative, but not limiting.

Figure 1 is a perspective view, in transparency, of the lock of the invention in a first position.

The figure of is a perspective view, in transparency, of the lock of the invention in a second position.

Figure 3 is a sectional view of the lock of Figure 1, in a vertical plane.

FIG. 4 is a sectional view along the line 4 - 4 of FIG. 3

Figure 5 is a sectional view of the lock of Figure 2, in a vertical plane.

FIG. 6 is a sectional view from above along line 6-6 of FIG. 4.

Figure 7 is an exploded view of the various components of the lock of the invention.

Figure 8 is a perspective view showing a barrier and the frame, associated with the lock of the invention.

Figure 9 is a partial schematic view showing from above the lock and a portion of the associated barrier, provided with a means for guiding and maintaining the lock.

Figure 10 is a front view of said guide means.

Figure 11 is a schematic top view of an additional guide means.

With reference to FIGS. 1 to 4, the lock of the invention comprises a cylindrical body 1, in the form of a metal tube, the upper part of which is covered with a cap 2 forming a handle for actuating the lock, as will be described hereinafter. after. The body 1 has a longitudinal axis X-X, vertical when the lock is in place, on a barrier or a door, not shown and known in itself.

Reference is made hereinafter to the concept of "vertical", with reference to the figures showing the lock in its position as it is fixed or mounted on a barrier or a door (not shown). Thus, the notions of "inferior" and "superior" refer to the vertical direction in itself.

• -- une première position extrême rétractée dans ledit fourreau 4 (figures 1 et 3) ou la pêne 3 dépasse peu ou d'une toute petite partie de sa longueur par rapport au fourreau 4 ;
• -- une seconde position extrême active, où le pêne 3 dépasse plus largement du fourreau 4 (figures 2 et 5).

At the base of the body 1 is mounted in radial translation a bolt 3 cylindrical in a sleeve 4 of complementary shape. The bolt 3 is able to move in translation in the sheath 4 between two extreme positions:

• a first extreme position retracted into said sleeve 4 (FIGS. 1 and 3) or the bolt 3 protruding a little or a very small part of its length relative to the sleeve 4;
• - A second active extreme position, where the bolt 3 exceeds more widely sheath 4 (Figures 2 and 5).

The bolt 3 is capable of engaging by its distal end, opposite the body 1, in a hole or notch (not shown), of complementary general shape, provided in a frame (not shown) associated with said barrier or door on which is the lock of the invention.

Thus, in a manner known per se in principle, the bolt 3, in its active position, prevents the opening of the barrier, while in its retracted position, it releases the rotational movement of said barrier.

The bolt 3 undergoes a restoring force towards its active position by a compression spring 5 (FIGS. 3 and 5) disposed at the bottom of the sleeve 4 and bearing on the proximal end of the bolt 3.

• -- un disque d'entraînement 6 solidaire d'un manchon 7 cylindrique monté à coulissement sur un arbre central 8 selon l'axe longitudinal X-X du corps cylindrique 1. L'arbre central 8 est solidaire à sa partie supérieure de ladite poignée 2 ;
• -- un élément torique 9 en matériau à fort coefficient de frottement, notamment en relation avec des pièces en métal, est disposé sur un premier disque entraîné 10 (figures 3, 4 et 6);
• -- un second disque entraîné 11 est disposé de manière concentrique avec et est lié au premier disque entraîné 10 par des entretoises 11A, 11B et 11C ; le disque entraîné 11 comporte une découpe ou ouverture, formant came 12 ;
• -- une goupille 13 d'axe parallèle à l'axe X-X, est susceptible de dépasser par son extrémité supérieure libre et de porter contre les bords de ladite came 12, et est fixée par son extrémité inférieure sur le pêne 3.

The passage of the bolt 3, from one extreme position to the other, is achieved by the action of the user on the upper handle 2, via a drive mechanism described below in more detail and which comprises, starting from the handle 2:

• - A drive disk 6 integral with a cylindrical sleeve 7 slidably mounted on a central shaft 8 along the longitudinal axis XX of the cylindrical body 1. The central shaft 8 is integral with its upper portion of said handle 2;
• - A toric element 9 of high friction material, especially in relation to metal parts, is disposed on a first driven disc 10 (Figures 3, 4 and 6);
• a second driven disc 11 is concentrically disposed with and is connected to the first driven disc 10 by spacers 11A, 11B and 11C; the driven disc 11 has a cutout or opening, forming a cam 12;
• - A pin 13 of axis parallel to the axis XX, is likely to exceed its free upper end and bear against the edges of said cam 12, and is fixed by its lower end on the bolt 3.

The operation of the device is as follows, starting from the active position of the bolt 3 (FIGS. 2, 5 and 6), where the lock blocks the barrier, by the cooperation of the free end of the bolt 3 with the notch or groove. port provided on the frame.

The user with the palm of his hand (not shown) presses on the cap or handle 2 in the form of a dome along the vertical axis XX, in a downward direction, and this against the return spring 14 (FIG. and 2) provided concentrically with the sleeve 7. The spring 14 carries at its upper end on the concave inner part of the handle 2, and at its lower end on a fixed fixed disc wall 15 of the cylindrical body 1.

The downward movement of the handle 2, a few millimeters, drives that of the sleeve 7 and the drive disc 6. The longitudinal axial translation movement is continued until the drive disc 6 bears against the toric element 9.

The user, while maintaining the pressure on the handle 2 against the return spring 14, then makes a second movement, rotation about the axis X-X. The drive disc 6 bears on the toric element 9 and, by friction, also causes it to rotate. The toric element 9 which bears against the first driven disk 10 drives the latter in rotation, also by friction.

The respective materials of the drive disk 6, the first driven disk 10, and the toric element 9 are selected to achieve a friction The toric element 9 constitutes a friction drive member in the intermediate position between the drive disk 6 and the first driven disk 10.

The driven disk 10, whose rotational movement causes rotation of the second driven disk 11. Given the shape of the cam cut 12, the pin 13 along the edges of the cam moves in radial translation (perpendicular to the XX axis). The displacement of the pin 13 causes the translation of the bolt 3, to its retracted position, against the return spring 5, and as shown in Figures 1, 3 and 4.

The user, while maintaining the pressure and the position of the handle (in translation first and then rotated as explained above), carries with his hand and his arm the barrier rotating a few degrees on its vertical axis . This frees the barrier of the frame.

The user can then release the handle 2. By the action of the return spring 14, the drive disk 6 returns to its initial position and no longer bears against the toric element 9 friction. The bolt 3 is then free, under the action of the return spring 5, to return to its active position protruding (Figures 2, 5 and 6).

Closing the barrier on the frame does not require action on the handle 2 by the user. Indeed, the latter by pushing the barrier towards the frame, causes the free end of the bolt 3 bears against the frame by a roller or roller 15 mounted freely to rotate along an axis parallel to the axis XX. The roller 15 protrudes from the free end of the bolt 3 so as to bear against the frame. The inertia of the barrier in its closing movement opposes the return force of the return spring 5 and pushes the bolt 3, which leans on the frame, towards its retracted position. Once the barrier in its closed position relative to the frame, the bolt is then free under the action of the return spring 5, to resume its projecting position, by penetration of the bolt in the notch or the orifice provided on the frame.

An advantageous characteristic of the invention is described below, with reference to FIGS. 8 to 11, and aimed at improving the security and control of access to an area, such as a swimming pool for example.

Even in the closed position of the door of the barrier, it may happen that an accidental or intentional mechanical action on the frame, where the lock is arranged, causes the latch to disengage with the striker.

To this end, there is provided on the gate where the strike is disposed, a bolt guide system to prevent the release thereof in the above mentioned conditions.

In Figure 8, there is shown a fixed barrier assembly and gate or movable door. The assembly comprises a first upright 16 on which is fixed to a fixed barrier element 17, and on which is articulated, along a vertical axis, a barrier, door or gate 18. the gate 18 has an amount 19 at its distal end (Opposite the articulation of the gate on the fixed amount 16).

In the closed position of the gate 18, as shown in FIG. 8, the assembly comprises a second fixed upright 20, on which is fixed another fixed barrier 21, and provided with a base 22.

The second fixed amount includes in its upper part a lock 23 of the invention as described above, and comprising a bolt 24 projecting from said upright, and adapted to cooperate and come to be housed in a keeper 25 provided on the distal amount 19 of the door 18.

The guide system of the invention consists of two elements.

The first element is a guide plate 26, shown in FIGS. 9 and 10, preferably metal, bent at about 90 °, and having a first portion 27 substantially in the axis of the gate 18, and a second portion 28, substantially transverse to said axis.

As shown in FIG. 10, in front view, that is to say in the direction of the longitudinal axis of the door, the second portion 28 of the guide element 26 comprises a cutout 29 of elongated shape, consisting of a first funnel portion 30, a substantially cylindrical central portion 31, and an enlarged end portion 32.

The second element of the guide system of the invention, which cooperates with the guide plate 26, is provided on the lock 23, in the form of a sleeve 33. The latter comprises a first cylindrical portion 34 extended by a collar 35 in the form of a relatively flat truncated cone. Inside the sleeve 33 is able to move in translation the bolt 24.

During the movement of the closing gate, as shown by the arrow F of FIG. 9, the sleeve 33 enters the cutout 29 provided on the guiding element 26: firstly in the funnel portion 30 and then in the central portion 31, then in the enlarged portion 32 and finally fits the sleeve 33. In this closed position of the door, the collar 35 carries against the inner face of the element 26, turned towards the door 18. Meanwhile, of course, the bolt 24 has first retracted into the sleeve 33, then it has returned to its extended position, under the effect of the spring disposed inside the lock, penetrating the keeper 25 provided on the door.

Thus, in the engaged position of the sleeve 33 (integral with the lock and therefore the fixed amount 23) in the guide element 26, even by exerting a force on the fixed amount 23, it is not possible to release the bolt of the waste.

• ■ du montant 23 sous la forme d'un second manchon 36, voir figure 11 ;
• ■ du montant distal 19 du portillon, sous la forme d'une seconde plaque de guidage (non présentée) similaire à la plaque 26 montrée sur la figure 9.

It is possible to provide another guiding system, similar, in the lower part:

• ■ the upright 23 in the form of a second sleeve 36, see Figure 11;
• ■ the distal post 19 of the gate, in the form of a second guide plate (not shown) similar to the plate 26 shown in FIG. 9.

Thus, the connection between the frame and the door (door) is more reliable in the closed position of the door.

Claims (6)

Lock for temporarily blocking a pivoting element (18), such as a barrier or a door, with respect to a frame (23), of the type comprising: - a bolt (3) sliding between a first retracted extreme position (releasing said door) and a second active extreme position (blocking the door); - A return means (5) of the bolt (3) to one of said extreme positions; - a pin (13) fixed on said bolt (3); - a rotary guide (11) incorporating a cam portion (12) associated with said pin (13); a handle (2) connected to said guide (11) by a drive mechanism (6, 9, 10) of the disengageable type, a driving element (6), linked to the handle (2), capable of translational movement and coming into contact with a driven element (10), connected to the guide (11), characterized in that the passage of the bolt (3), from one extreme position to the other, is achieved by the action of the user on the handle (2) via the drive mechanism (6, 9, 10), this mechanism driven by two successive movements of the handle (2) Lock according to claim 1, characterized in that the drive mechanism performs a first translational movement, and a second rotational movement Lock according to claim 2, characterized in that said driving element (6) is a disc, in contact with the driven element (10) by friction means (9) of elastomer material, rubber, plastic, with a high coefficient of friction. Lock according to claim 3, characterized in that the friction means (9) consist of a ring element (9) Lock according to one of the preceding claims, characterized in that said driven member (10) is formed of a spacer (11A, 11B, 11C), fixed to said guide (11). Lock according to one of the preceding claims, characterized in that it comprises means (28) for guiding and holding the bolt (3), consisting on the one hand of at least one guide plate (28) fixed on the barrier (18) movable and comprising a cutout (29) of elongate shape, and secondly of at least one sleeve (33) fixed on the lock, in which is capable of moving in translation said bolt (3) , the sleeve (33) being adapted to penetrate into said cutout (29), and further including a projecting element (35) adapted to bear against said plate (28).

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