EP3401471B1 - Locking mechanism for espagnolette lock comprising at least one nut - Google Patents

Description

The invention relates to a locking mechanism for a carpentry locking fitting, said locking mechanism comprising at least one follower rotatably mounted in a housing and cooperating with at least one locking member and / or a transmission member, such as an easel, an operating rod, a drive pinion, to push this locking member and / or transmission between a position, including locking, and at least one unlocking position, by rotation of said follower according to a given race between two extreme positions angularly offset.

The present invention relates to the field of carpentry fittings and more particularly lock fittings for doors, windows or the like, incorporating at least one operable nut, in particular, via a handle.

There are multiple lock fittings incorporating a locking mechanism as described above.

For example, it is known the door locks or casement window, having a housing very often recessed in rabbet of the amount before the opening of this door or window. This housing houses a locking mechanism comprising, essentially, a follower rotatably mounted in this housing about an axis perpendicular to the plane of the opening. On this follower can act a user through a handle most often intervening on a square maneuvering through a section opening adjusted in the axis of the follower.

It cooperates with a locking member, usually a latch bolt, so that, by rotation of the follower in a given angular stroke and under the impetus of the handle accessible to the user, it is obtained, starting from a locking position of the latch bolt, its recoil in an unlocked position.

The amplitude of rotation imparted to the follower by the handle in the context of such a lock to move from this locking position of the latch bolt in its unlocked position is at most 45 °.

If one now takes into account the espagnolette type locking fittings, the follower acts directly or indirectly on an operating rod, to simultaneously provide locking control, as the case of unlocking, of several locking members , such as rollers, hook bolts or the like, each adapted to cooperate with a strike, to further secure a door or window opening against a frame.

In this case, the rotation printed to the follower to move from a locked position to an unlocked position is about 90 °. This rotation usually consists in pushing a handle from a vertical locking position downwards to a horizontal unlocking position.

Sometimes a locking mechanism type espagnolette or espagnolette-lock offers several possibilities of opening a door or window opening it comes equipped.

By way of example, beyond a normal French opening, a door leaf or window can be brought into a ventilating opening position, said by knocking down.

This second open position is frequently obtained through a complementary rotation of the follower, therefore the handle acting on the latter. Thus, it is usual, starting from the unlocking position in which the handle is horizontal, to raise it vertically, by rotating 90 ° complementary, to reach this second unlocking position. This represents a total rotation of 180 ° of this handle, starting from its initial locking position in which it extends vertically downwards.

There are still other fittings including such a lock mechanism to follower more particularly applicable to opening doors or sliding windows.

Here again, the direction of the angular displacement and the amplitude of this displacement conferred on the follower depends on the type of fitting locking, but also the mobility of the sliding leaf relative to the frame.

Thus, for example, in the case of single sliding doors, it is common that the unlocking and opening control results from the rotation of a handle, from a raised vertical position, in a horizontal position at 90 ° and consequently a rotation of similar amplitude of the follower on which this handle acts.

On the other hand, this amplitude of rotation printed on the follower is 90 ° or 180 ° depending on whether it is desired to bring a translatory sliding leaf into a ventilation or opening position. Indeed, very often in this case, a first rotation of the handle from a vertical position raised in a horizontal position leads to the opening of such a sliding switchable translationally in a ventilation position by flipping, while a rotation complementary to this handle downwards generates the shift of this translating sliding leaf in a plane parallel to the frame to allow its sliding opening.

This amplitude of rotation printed by the handle on the nut of a locking mechanism of a fitting coming to equip a sliding-sliding door is still different compared to the previously described solutions for, for example, during the unlocking command of a such sliding-sliding opening, ensure, first unlocking, then lifting the opening which allows its sliding.

Finally, it is understood that a lock fitting locking mechanism comprising a follower must incorporate stop means limiting at a given amplitude the angular travel of this follower between two determined extreme positions, this depending on the application of this mechanism locking to a specific type of carpentry.

By the document DE 10 2013 001 067 , there is known a locking mechanism for carpentry lock fitting. This locking mechanism comprises at least one follower rotatably mounted in a housing and cooperating with at least one transmission member to push this transmission member between a position and at least one unlocking position, by rotation of said follower according to a given stroke between two extreme positions angularly offset. This locking mechanism also comprises stop means capable of occupying, on the one hand, a first position in which they cooperate with the follower to allow rotation of the latter in a first angular stroke and, on the other hand, at least a second position in which these stop means allow the rotation of said follower in a second angular stroke distinguished from the first angular stroke by its amplitude, these stop means comprising a first stop member, on the one hand, mounted in the housing movably between said first position and the second position and, on the other hand, cooperating with complementary abutment members, which is provided with the follower. This locking mechanism comprises, also and in combination, means for selecting the position of said stop means.

It is within the framework of an inventive step that it has been imagined that this amplitude, or even the extreme positions delimiting the angular travel of a follower, can be modulated according to the application of the locking mechanism, this in the aim of not having to multiply, as is the case until now, the locking mechanisms of these fittings according to these applications.

If, depending on the application envisaged, the locking mechanism of a current locking fitting differs from other mechanisms by the characteristics making it possible to delimit the angular travel of the follower, the solution according to the invention consists in proposing a locking mechanism providing the possibility to adjust, on demand, this angular stroke of the follower so as to have a locking mechanism that is multiple applications.

Thus, the invention relates to a locking mechanism for carpentry locking fitting. This locking mechanism comprises at least one follower rotatably mounted in a housing and cooperating with at least one locking member and / or a transmission member, such as a bridge, an operating rod, a drive pinion, to push this locking member and / or this transmission member between a position, including locking, and at least one unlocking position, by rotation of said follower according to a given stroke between two extreme positions angularly offset. This locking mechanism also comprises stop means capable of occupying, on the one hand, a first position in which they cooperate with the follower to allow rotation of the latter in a first angular stroke and, on the other hand, at least a second position in which these stop means allow the rotation of said follower in a second angular stroke differing from the first angular stroke, as the case may be, by its amplitude and / or by at least one of the extreme positions, these means of stop comprising a first stop member, on the one hand, mounted in the housing movably between said first position and the second position and, on the other hand, cooperating with complementary abutment members, which is provided with the follower. This locking mechanism comprises, also and in combination, means for selecting the position of said stop means.

This locking mechanism is characterized in that the complementary abutment members are in the form of axially offset ring sectors at the periphery of a hub of the follower and that the first abutment member is movably mounted in the housing, between at least the first position and the second position, and in a coaxial direction to the follower.

The advantages deriving from the present invention essentially consist in a standardization of locking mechanisms for door or window-type joinery, making it possible to rationalize the manufacture of locking fittings incorporating such a mechanism, this according to the different applications. This rationalization results in improved parts inventory management, lower production costs and greater responsiveness to market demand.

Other objects and advantages of the present invention will become apparent from the following description relating to an exemplary embodiment given by way of indication and not limitation.

• la figure 1 est une représentation schématisée d'une fenêtre dont un ouvrant est équipé d'une ferrure de verrouillage comprenant un mécanisme de verrouillage selon l'invention,
• la figure 2 est une représentation schématisée et en perspective d'un exemple de mécanisme de verrouillage selon l'invention,
• la figure 3 est une vue similaire à la figure 2 illustrant ce mécanisme de verrouillage avec un boîtier dont l'une des parois latérales est retirée,
• la figure 4 est une vue de détail illustrant deux amplitudes de rotation distinctes du fouillot du mécanisme de verrouillage,
• la figure 5 est une représentation en perspective et en éclaté de ce mécanisme de verrouillage,
• les figures 6a et 6b illustrent le fouillot et sa coopération avec des moyens de butée occupant respectivement une première et une seconde position,
• les figures 7a et 7b correspondent à des représentations de détail et en coupe du fouillot et sa coopération avec les moyens de butée, respectivement dans la première et seconde position, telles que visibles dans les figures 6a et 6b.

The understanding of this description will be facilitated by reference to the accompanying drawings in which:

• the figure 1 is a schematic representation of a window of which an opening is equipped with a locking fitting comprising a locking mechanism according to the invention,
• the figure 2 is a schematic and perspective representation of an example of a locking mechanism according to the invention,
• the figure 3 is a view similar to the figure 2 illustrating this locking mechanism with a housing of which one of the side walls is removed,
• the figure 4 is a detail view illustrating two distinct rotational amplitudes of the latch of the locking mechanism,
• the figure 5 is a perspective and exploded representation of this locking mechanism,
• the Figures 6a and 6b illustrate the follower and its cooperation with stop means respectively occupying a first and a second position,
• the Figures 7a and 7b correspond to representations of detail and in section of the follower and its cooperation with the abutment means, respectively in the first and second position, as visible in the Figures 6a and 6b .

The present invention relates to a locking mechanism 1, an exemplary embodiment of which is illustrated in FIGS. Figures 2 to 4 , this locking mechanism 1 being applicable to locking fittings 2 fitted to a building joinery, such as a door, window or the like 3.

In this regard, in the figure 1 , it is shown, schematically and by way of example, a window 3 comprising a leaf 4 and a gilding frame 5. In such a application, the locking fitting 2 can be in the form of a simple lock or a cremone equipping the front post 6 of the leaf 4 and acting on one or more locking members provided for cooperating, in particular, with strikes arranged in correspondence on the sleeping frame 5.

The user can act on this locking mechanism 1 of the locking fitting 2 through a handle 7. This is illustrated in a horizontal position on the figure 1 corresponding, here, to the position of unlocking and French opening of the leaf 4. In the closed position, the handle 7 is usually rotated 90 ° so as to extend vertically downwards.

While some door or window leaves can be opened only by rotation around a vertical pivot axis, others are also able to open by flipping into a ventilation position. Such an opening consists of a pivoting of a leaf around an axis of horizontal rotation, often materialized by the inner cross member of this leaf.

For the opening command of such a leaf 4 by flipping, it is usual to communicate to the handle 7 a rotation of 180 ° to extend vertically upwards, starting from an initial locking position of s' extend vertically downward.

This exposed, the locking mechanism 1 of such a locking fitting 2 comprises a follower 8 rotatably mounted in a housing 9, about an axis of rotation 10 substantially perpendicular to the plane of the housing 9, or substantially perpendicular to the plane of the housing. leaf 4 comprising such a locking mechanism 1.

For example, the follower 8 comprises, generally, a hub 11 kept rotated on both sides by the side walls 12, 13 of this housing 9.

Furthermore, the handle 7 rotates the follower 8 more often through an operating square 14 engaging in an opening 15 of section adapted in the hub 11.

This follower 8 cooperates, as appropriate, directly with a locking member, such as a latch bolt, a dead bolt or the like, and / or, as in the embodiment corresponding to the Figures 2 to 4 , with at least one transmission member 16 which can take the form of a bridge 17, able to act on an operating rod or the like, either directly that of such a rod, or even a pinion drive.

It should be specified, in a complementary manner, that such a follower 8 of a locking mechanism 1 according to the invention is also able to act simultaneously on two trestles or two separate operating rods, one of which is even to transmit a movement to locking members located above the housing 9 and the other to other locking members disposed under this housing 9.

As has been explained above in the description, depending on the type of locking fitting incorporating such a locking mechanism 1, the follower 8 is capable of being rotated in a given angular stroke 18a, 18b, this between two positions. extremes 19a, 20a; 19b, 20b, angularly distinct and / or staggered.

According to a feature of the invention, the locking mechanism 1 comprises stop means 21, cooperating with the follower 8, and able to occupy a first position 22 in which they allow the follower 8 to rotate in a first angular stroke 18a these abutment means 21 can still occupy at least a second position 23 in which they allow the follower 8 to pivot about its axis 10 in a second angular stroke 18b. This is distinguished from the first angular stroke 18a, as the case may be, by its amplitude and / or by at least one of the extreme positions 19a, 19b; 20a, 20b.

In combination, this locking mechanism 1 according to the invention comprises means 24 for selecting the position 22 or 23 of these abutment means 21.

These abutment means 21 advantageously comprise a first abutment member 25 mounted in the housing 9 so as to movable between said first position 22 and the second position 23.

This first abutment member 25 is also mounted in this housing 9 in a manner adapted to cooperate with complementary abutment members 26a, 26b, which is provided with the follower 8, more particularly at the periphery of the hub 11.

Thus, this first stop member 25 is made to cooperate, on the one hand, with the complementary abutment members 26a, when in its first position 22, and on the other hand with the complementary abutment members 26b. when in his second position 23.

Of course, the present invention is not limited to only two possible positions 22, 23 of the stop means 21 and the complementary abutment members are a function of these different positions 22, 23 possible.

In the context of a preferred embodiment, but not limiting, if the first stop member 25 may be in the form of at least one locking pin 27a, 27b, complementary abutment members 26a, 26b can borrow they themselves, any configuration, especially at the periphery of the hub 11. Their disposition is determined, on the one hand, to allow rotation of the follower 8 in an angular stroke 18a or 18b, and, secondly, to define the positions angular extremes, as appropriate, 19a, 20a or 19b, 20b

As particularly visible in FIGS. 6A, 6B, 7A, 7B these complementary abutment members 26a, 26b are in the form of ring sectors 28a, 28b at the periphery of the hub 11.

According to the occupied position 22 or 23, the locking finger or fingers 27a, 27b, defining the first stop member 25, at least one of these locking fingers 27a, 27b is made to cooperate with at least one of the crown 28a, 28b.

In this respect, these ring sectors 28a, 28b are advantageously axially offset at the periphery of the hub 11 of the follower 8, while the first stop member 25 is itself mounted in the housing 9 between at least the first position 22 and the second position 23 in a coaxial direction to the follower 8.

Insofar as the locking finger or fingers 27a, 27b (corresponding to the first abutment member 25) cooperate more particularly with the off-hooks 29 (defined by the ring sectors 28a, 28b at the periphery of the hub 11, which are unhooked and which, in turn, determine the extreme angular positions 19a, 20a or, as the case may be, 19b, 20b), the amplitude of the angular races 18a, 18b, depends inversely on the size of these sectors of rings 28a, 28b and the section of said locking fingers 27a , 27b.

Advantageously, the selection means 24 of the positions 22, 23 of the abutment means 21 comprise indexing means 30 of these abutment means 21 in these positions 22, 23.

According to a preferred embodiment, these indexing means 30 take the form of retractable elastic retaining means 31 capable of cooperating with complementary retaining means 32 adapted as a function of the positions 22, 23 to be indexed.

In the illustrated embodiment, the resilient retaining means 31 are defined in the form of an elastic blade and equip the housing 9, while the complementary retaining means 32 are associated with the first abutment member 25.

Substantially, the elastic blade is preferably implanted in the front portion 33 of the housing 9, accessible portion, usually in carpentry rabbet. This elastic blade comprises, on the one hand, an end 34 secured to the housing 9 (more particularly to one of the walls 12 of the housing 9) and, on the other hand, a handling end 35. Between these ends 34, 35, this elastic blade defines a bend 36 adapted to engage in one 37a or the other 37b of the grooves corresponding to the complementary retaining means 32 that includes the first stop member 25.

Advantageously and as visible on the figure 2 , the handling end 35 is accessible to the user through the side wall 13 of the housing 9, opposite that 12 which is secured to the elastic blade. This means that only a warned operator and at the time of mounting the locking fitting 2 on a joinery 3, can intervene on these selection means 24, thereby avoiding possible mishandling by the user.

Note also that guide means 38 (adapted in the housing 9) contribute to guiding the first stop member 25 in its movements between its first 22 and second 23 positions.

As an example shown in the Figures 2, 3 and 5 this first abutment member 25 (defining at least one locking pin 25a, 25b) is mounted to move in translation on a screw guide 39 that includes the housing 9 and passing through the latter for the passage of a fixing screw of a handle 7.

If the locking mechanism 1 according to the invention offers the possibility of selecting between different angular races 18a, 18b of the follower 8, it may still be advantageous to be able to choose between different angular orientations of the handle 7 that this locking mechanism 1 is intended to receive.

If a maneuvering square 14 already makes it possible to choose between different angular orientations of this handle with an offset of 90 °, the opening 15 in the follower 8 is defined able to receive this square 14 in two positions 40 41 angularly offset from each other by 45 °.

Consequently, thanks to its operating square 14, a handle 7 can be mounted on the locking mechanism 1 in different angular positions offset by 45 ° and this, over 360 °.

As already indicated above, the advantages resulting from the present invention consist in an application of the locking mechanism according to the invention to multiple lock fittings for joinery type lock, espagnolette or other. This leads to a standardization of the manufacture of these locking mechanisms and storage optimization of the parts that compose them.

Claims (8)

1. A locking mechanism (1) for locking fitting (2) joinery (3), this locking mechanism (1) comprising:

   - at least one nut (8) mounted rotating in a housing (9) and cooperating with at least one locking member and/or a transmission member (16), such as a trestle (17), a maneuvering rod, a drive pinion, to push this locking member and/or this transmission member (16) back between a position, in particular a locked position, and at least one unlocked position, by rotation of said nut (8) along a given travel (18a, 18b) between two angularly offset extreme positions (19a, 20a; 19a, 20b);

   - stop means (21) capable of occupying, on the one hand, a first position (22) in which they cooperate with the nut (8) in order to allow the rotation of the latter over a first angular travel (18a) and, on the other hand, at least one second position (23) in which these stop means (21) allow the rotation of said nut (8) according to a second angular travel (18b) differing from the first angular travel (18a), depending on the case, by its amplitude and/or by at least one of the extreme positions (19a, 20a; 19a, 20b), these stop means (21) comprising a first stop member (25), on the one hand, mounted in the housing (9) movably between said first position (22) and said second position (23) and, on the other hand, cooperating with complementary stop members (26a, 26b), with which the nut (8) is provided;

   - in combination with the means (24) for selecting the position (22, 23) of said stop means (21);

   - characterized by the fact that the complementary stop members (26a, 26b) assume the form of crown sectors (28a, 28b) axially offset on the periphery of the hub (11) of the nut (8) and the first stop member (25) is mounted movably in the housing (9), between at least the first position (22) and the second position (23), and in a direction coaxial to the nut (8).
2. The locking mechanism (1) according to claim 1, characterized in that the complementary stop members (26a, 26b) are arranged on the periphery of the hub (11) of the nut (8).
3. The locking mechanism (1) according to claim 1 or 2, characterized in that the first stop member (25) assumes the form of at least one blocking finger (27a, 27b) capable of cooperating with at least one complementary stop member (26a, 26b) with which the nut (8) is provided.
4. The locking mechanism (1) according to one of the preceding claims, characterized in that the selection means (24) for selecting positions (22, 23) of the stop means (21) include indexing means (30) for indexing these stop means (21) in these positions (22, 23).
5. The locking mechanism (1) according to claim 4, characterized in that the indexing means (30) take the form of retractable resilient retaining means (31), capable of cooperating with complementary retaining means (32) adapted based on the positions (22, 23) to be indexed.
6. The locking mechanism (1) according to claim 5, characterized in that the resilient retaining means (31) are defined by a resilient blade, which is implanted in the front part (33) of the housing (9), and which includes an end (34) secured to the housing (9) as well as a handling end (35), and which, between these ends (34, 35), this resilient blade (31) defines a bend (36) able to engage in one (37a) or the other (37b) of the slots corresponding to the complementary retaining means (32) included by the first stop member (25).
7. The locking mechanism (1) according to any one of the preceding claims, characterized in that it includes guiding means (38) for guiding the movements of the first stop (25) between its first (22) and second (23) positions.
8. The locking mechanism (1) according to any one of the preceding claims, characterized in that the nut (8) includes an opening (15) of a maneuvering square (14) suitable for receiving a maneuvering square (14) in two positions (40, 41) angularly offset from one another by 45°.

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