FR2808299A1 - LOCKING DEVICE FOR DOUBLE LEAF DOOR LEAVES - Google Patents

Abstract

The door leaf locking device comprises a tipping latch (4) fixed to a vertical pivoting spindle (5) housed in a hole (6) which has a lock case (1) which is installed in the door sill. This case has a front plane face (3) which supports the lower edge of the door leaf. The tipping latch comprises a first rectilinear part (4a) rigidly fixed to the vertical pivoting spindle, a second part (4b) forming a right angle with the first part and a third part (4c) forming an angle with the second part.

Description

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  Locking device for double leaf doors.

  The present invention relates to a locking device for leaves

  double gates or doors.

  Whether double doors installed in the entrance opening of premises or double leaf gates installed between two pillars delimiting the entrance opening of a fence, the leaf which opens in the second of these doors or gates is generally fitted with a lock, at least in the lower part. This lock, whether of the "box" or "bayonet" type comprises a 0o or half-round flat rod arranged vertically, with an axial translational ability, and

  one end of which is provided with a handle or operating button.

  The opposite end of this rod is intended to engage in a keeper

  installed in the threshold of the opening to lock the leaf fitted with the lock.

  This type of lock has at least two kinds of drawbacks: drawbacks in use: the rod is operated in an uncomfortable bent or bent position, the pulling of this rod requires a greater or lesser force depending on whether or not it is stuck in the keeper, while its insertion into said keeper which requires the alignment of the axes of the rod and the keeper, is not always obtained on the first try; - drawbacks in the efficiency of the closing: when the gate or door is openwork, it is possible to lift the rod from the outside and open the gate or door by pushing or pulling

simultaneously the two leaves.

  The present invention aims in particular to remedy these drawbacks.

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  According to the invention, this objective is achieved by means of a locking device comprising a tilting latch secured to a vertical pivot axis housed, with an ability to move, in a light provided by a box or block intended to be fixedly installed on the threshold of an opening, this block comprising a flat front face for supporting the lower edge of the leaves of a door or of a gate, the tilting latch comprising a first rectilinear part rigidly secured to the vertical tilting axis , a second part forming a right angle with said first part and, preferably, a

  third part forming an angle with said second part.

  According to another characteristic arrangement of the invention, the lumen in which the vertical pivot axis of the tilting latch is housed has an oblong shape and an oblique orientation relative to the flat front face of the block or trunk. According to another characteristic arrangement of the invention, the latch

  tilting is constituted by a robust folded flat iron.

  According to another characteristic arrangement of the invention, the first part and the second part of the tilting latch are connected by a surface

curved exterior.

  According to another characteristic arrangement of the invention, the tilting latch comprises a heel rigidly secured to the pivot axis of said latch and forming an angle, preferably 90 relative to the first part

of the last.

  Thanks to the locking device comprising the aforementioned characteristic provisions, it is possible to open the second leaf of the portal, after opening the leaf, without any operation, the pivoting of said second leaf ensuring the automatic erasure of the tilting latch. On the other hand, the locking of the second leaf is automatically ensured when the opening is closed; indeed, at first, the closing of the second wing ensures a pre-positioning of the latch which is then tilted

  in the locked position under the thrust of the door.

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  The locking device according to the invention provides better security of the closure. Indeed, it is impossible to move the latch without first opening the door. In other words, one cannot unlock the device and open the gate or the door by pushing or simultaneously pulling the two leaves, if the lock or locks have not been or have not been opened. Another advantage of this device is that it requires no intervention (welding, drilling, etc.) on the door leaves. In addition, in the event of decommissioning, it can be easily replaced without having

  obligatorily recourse to a specialist.

  o10 The above goals, features and benefits and more,

  will emerge more clearly from the description which follows and from the attached drawings in

which:

  Figure 1 is a plan view of the locking device of the invention.

  Figure 2 is a front view of this device.

  Figure 3 is a sectional view along line 3-3 of Figure 2.

  Figure 4 is a plan view of the tilting latch of this device.

  Figure 5 is a side view of Figure 4.

  Figures 6 to 10 are partial plan views illustrating the operation of the device of the invention, during different opening phases

  and closing the gate leaves.

  Reference is made to said drawings to describe an embodiment.

  advantageous, although not limiting, of the locking device according to the invention.

  In the remainder of this disclosure, and in the claims, the term

  "door" will be used to designate both a double leaf door fitted to the entrance to a room, and a double leaf gate installed in the entry opening

of a fence.

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  This device comprises a trunk or box 1 which can be fixed on a sole 2 arranged or shaped to allow its installation, permanently, using any appropriate means and fixing methods, within the threshold of a

  opening equipped with a door with two leaves.

  s This box has a flat front face 3 intended to support the edge

  lower of the door leaves, in the closing position of this.

  In the trunk 1, there is a tilting latch 4 rigidly secured to an axis 5 housed vertically in said trunk. This vertical axis is mounted with a lateral translational ability, through its ends, in 1o of the slots 6 which have, in correspondence, the horizontal walls

  upper 7 and lower 8, respectively, of the trunk 1.

  The oblong slots 6 have an oblique orientation relative to the front vertical face 3 of the trunk 1. The major axis of these slots preferably forms

  an angle ca of 45 with the plane in which said front face 3 is included.

  Advantageously, the tilting latch 4 is constituted by a robust folded flat iron, a width of a few centimeters, for example of the order of 3 cm. It comprises a first rectilinear part 4a rigidly integral, for example by welding, of the axis 5, a second part 4b forming a right angle with said first part 4a, and, preferably, a third part 4c

  forming an angle, for example of the order of 90, with said second part 4b.

  The first part 4a and the third part 4c are thus arranged in

  parallel or substantially parallel planes.

  The first part 4a is intended to be inserted between the edges of the two leaves, the second part 4b has the function of retaining the second leaf, and the third part 4c which is not essential for the operation of the device,

  is intended to facilitate the operation of the latch, using the foot, if necessary.

  The first part 4a and the second part 4b are advantageously

  externally connected by a curved surface 4d.

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  The latch 4 thus formed emerges from the trunk or box 1, through a large opening 9 formed in the front face 3 of the latter and in which can be

  move the first part 4a of said latch.

  The latch also advantageously comprises a heel 10 rigidly secured to the pivot axis 5 and forming an angle, preferably of the order

  of 90, relative to the first part 4a of said latch.

  The heel 10 is thus oriented parallel or substantially parallel to

the second part 4b of the latch 4.

  The front end 6a of the oblong opening 6 is disposed near one of the vertical edges 9a of the front opening 9, so that said edge forms a stop limiting the amplitude of the pivoting of the tilting latch 4 in the position d 'opening. Thanks to this arrangement, the heel 10 remains placed in a position allowing it to pivot under the thrust of the second leaf B2 during

  closing it (Figure 8).

  The upper end of the vertical pivot axis 5 of the tilting latch 4 is provided with a head 5a. In order not to hinder the translation of axis 5, the lower end of the latter is housed, with the ability to move, in a small

  casing 11 fixed, by welding or otherwise, under the fixing base 2 (Figure 2).

  Naturally, the dimensions of the locking device according to the invention and of its tilting latch 4-5 can be adapted to the dimensions of the doors.

  with two leaves at the closing of which they are intended.

  Figures 6 to 10 illustrate the operation of the locking device

according to the invention.

  FIG. 6 shows the door closed, for example, by means of the lock (not shown) equipping its two leaves B1 and B2. In this position, the part 4a of the latch is wedged between the adjacent edges of the two leaves, its part 4b covers the edge of the second leaf B2, its part 4c forms a projection oriented towards the front, the axis 5 is in the middle portion of the -6-

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  light 6. In this situation, it is impossible to tilt the latch 4, without

  opening of the lock and opening B1.

  FIG. 7 shows the opening of the opening B1 which has no influence on the position of the latch, the tilting of which towards the center of the opening is however authorized. FIG. 8 illustrates the opening of the second leaf B2 which automatically causes the latch 4 to tilt and unlock, under the thrust of said leaf, without it being necessary to intervene manually on the locking device. Jointly, axis 5 is close to

  Io the anterior end of the oblong lumen 6.

  Figures 9 and 10 show the two successive phases of tilting of the latch 4 in the locking position. At first, when it is closed, the second leaf pushes the heel 10 towards the interior of the boot 1, which causes the latch to pivot, the stop part 4b being brought closer to the edge of the second leaf B2 (figure 9). In a second step, when it is closed, the edge of the opening B1 slides on the curved surface 4d of the latch (Figure 10) ensuring the additional pivoting of the latch in the locking position (Figure 6). During these two tilting movements of the latch 4, the pivot axis 5 of the latter is successively

  moved towards the middle of the lumen 6.

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Claims (9)

  1.- Locking device for door leaves with two leaves, characterized in that it comprises a tilting latch (4) secured to a vertical pivot axis (5) accommodates, with a capacity for movement, in a slot ( 6) that has a box or block (1) intended to be fixedly installed in the threshold of an opening, this block comprising a flat front face (3) for supporting the lower edge of the leaves of a door, said latch tilting comprising a first rectilinear part (4a) rigidly integral with the vertical axis of 0o tilting, a second part (4b) forming a right angle with said first part (4a) and, preferably, a third part (4c) forming a angle with said second part (4b).   2. - Locking device according to claim 1, characterized in that the tilting latch (4) comprises a heel (10) rigidly secured to the pivot axis (5) of said latch and forming an angle with the first part (4a ) of the last.   3. - locking device according to one of claims 1 or 2, characterized   in that the light (6) in which is housed the vertical pivot axis (5) of the tilting latch (4), has an oblong shape and an oblique orientation relative to   to the flat front face (3) of the boot (1).   4. - locking device according to any one of claims 1 to 3,   characterized in that the tilting latch (4) consists of a robust folded flat iron. - 8- 2808299   5. - locking device according to any one of claims 1 to 4,   characterized in that the first part (4a) attached to the pivot axis (5) of the tilting latch (4) and the second retaining part (4b) of the latter, are   connected by a curved exterior surface (4d).   6. - locking device according to any one of claims 3 to 5,   characterized in that the long axis of the oblong lumen (6) forms an angle of     with the plane in which the front face (3) of the boot (1) is included.   1o 7. - locking device according to any one of claims 2 to 6,   characterized in that the heel (10) is oriented parallel or approximately parallel to the second retaining part (4b) of the latch tilting (4).   8. - locking device according to any one of claims 1 to 7,   characterized in that the first part (4a) and the third part (4c) of the tilting latch (4) are arranged in parallel or substantially parallel planes.   9. - locking device according to any one of claims 3 to 8,   characterized in that the anterior end (6a) of the oblong opening (6) is arranged near one of the vertical edges (9a) of the front opening (9) of the trunk (1) in which can move the tilting latch (4), so that said edge (9a) forms a stop limiting the pivoting amplitude of said latch   tilting (4) in the open position.   10. - Locking device according to claim 1, characterized in that the upper end of the pivot axis (5) of the tilting latch (4) is provided with a head (5a) and in that the end lower of said axis is housed with an ability to move in a casing (11) fixed under the fixing sole (2) of said device.