ES2246820T3 - LOCK SYSTEM FOR FURNITURE DRAWERS. - Google Patents

Abstract

The drawer (C) has a bolt (B) which activates the locking system. On a base plate (1) are installed several support modules (2) able to be displaced longitudinally. A lock (3) is fixed on each support with means allowing mutual locking/unlocking by applying a linear force at an angle to the drawer displacement direction.

Description

Locking system for furniture drawers.

The present invention concerns a system of drawer lock that prevents the furniture from tipping over, particularly in drawers for office furniture and the like.

At present, the drawer furniture or similar for document archiving of all type (files, folders, etc.) and many have been developed devices that, to prevent overturning, prevent the existence of several open drawers, the number of patents being huge respect.

It is known from EP 738 813 to a locking system for furniture drawers, consisting of each drawer of a bolt (B) attached to the drawer, which drives the elements of a device blockage that involves the elements of a cam body and a seat, all locking devices being correlated between them by means of a base plate mounted on the furniture, and mounting on the plate-base several sliding elements with bidirectional longitudinal displacement; and mounting on the sliding elements, in a fixed way, the corresponding locking device, the objective being the vertically separate the cam body from the seat by means of the bolt (B) integral with the furniture drawer.

On the base plate of EP 738 813 A, there are two kinds of sliding elements, the separators and the support modules, with the consequence of having two kinds of production, storage, packaging, etc.

The position of each EP module-support 738 813 A is decisive and the position of the corresponding locking device is fixed, so that if necessary change the position of the device blocking, it is necessary to disassemble all the systems guide-support.

The interlocking of the locking device in the Support module is made inside the support module.

The applicant has wanted to focus on some Problems not solved by the mentioned mechanisms:

a) the elements of the devices are manufactured tailored to the size of the furniture or drawers, so for each manufacturer and for each furniture elements of different sizes, which prevents standardization and make the price more expensive price;

b) excessive limitation imposed by the manufacturer from the mechanism to the furniture manufacturer;

c) drive devices (springs) and blocking arranged in opposite directions or inappropriate places;

d) lack of security against manipulation;

e) inability to open in case of closure accidental.

The Spanish Utility Model ES 1039 748U, of same applicant, solves these problems but, in all the existing technology (even in the files that involve replaceable modular components) the principle that interlocking and push / work efforts are made in the same address, which results in voluntary decoupling difficult and, conversely, involuntary decoupling or accidental is easy.

These problems have been solved by the invention requested here, which totally varies the principle fundamental assembly (resulting now that the efforts of interlocking and work efforts are made in directions different) so that voluntary coupling / decoupling It is very easy and accidental decoupling is practically impossible without irreversible deterioration of the replaceable component.

To better understand the purpose of this invention, a preferred form of practical realization.

Figure 1 is a perspective view and schematically represents the lock system for drawers in furniture object of the invention with its basic components.

Figure 2 represents, in detail, elevation front (figure 2a), floor (figure 2b), rear elevation (figure 2c) and sections (figures 2d and 2e), a module-support (2) for a non-limiting example of practical realization.

Figure 3 represents, in detail, elevation front (figure 3a), floor (figure 3b), rear elevation (figure 3c) and section (figure 3d), a blocking device for an example No limitation of practical realization.

Figure 4 represents, in detail, elevation front (figure 4a), floor (figure 4b), back shoes (figure 4c) and section (figure 4d), of a cam body (3 ') of the device blocker

An example of practical, non-limiting embodiment of the present invention.

The locking system for furniture drawers, according to the invention, basically used in office furniture and similar, mounts, in correlation with all the drawers (C) of a furniture (M), a base plate (1), or means guidance equivalents, mounted on the furniture (M) with means known (4), (4 ') and in which plate-base (1) are likely to move linearly support modules (2).

There is one of these support modules (2) for each drawer (C) of the furniture (M) and is associated with a blocking device (3), (3 ') operated by a bolt (B) attached to the corresponding drawer (C).

The system is completed, for example, by providing superior to the support modules (2) means that tend to keep them self-positioned with each other and means to lock the assembly in its closed position. These means are not object of the invention.

On the base plate (1) mount a plurality of support modules (2) with means to move longitudinally in it so bidirectional

On each module-support (2) it fixedly mounts to a blocking device (3), (3 ') with means for their mutual interlocking / unlocking applying a linear effort in angled direction with respect to the direction of travel of the drawer. Particularly the effort direction of interlocking / unlocking and the direction of travel of the drawer (C) are orthogonal to each other.

According to the embodiment represented, the plate-base (1) defines slits longitudinal (11), in which the modules-support (2) -see figure 1-.

According to the embodiment represented, each module-support (2) -see figures 2a to 2e- is a single piece body and define at least:

Later tabs (21), conjugated with the longitudinal grooves (11) of the plate-base (1); nail longitudinal guide grooves (22) that define in its bottom some transverse pockets (23); front tabs (24). According to the embodiment shown, the elements (3), (3 ') of each blocking device defines, at least: a blind cashier (31), dimensioned conjugate of the front tabs (24) defined in the support module (2); side tabs (32), dimensionally conjugated of the guide grooves (22) defined in the module-support (2). Each side tab (32) or, at less, one of them defines protrusions (33) conjugates of the cashiers (23), in which they are housed by elastic deformation.

The blocking device, in its remaining peculiarities, it adapts to the various embodiments or solutions required by presenting different geometries the elements (3), (3 ') and / or blocking solutions (of which those represented in the Figures 3 and 4 constitute two mere examples of embodiment practice).

Claims (1)

1. Locking system for furniture drawers, consisting of each drawer of a bolt (B) attached to the drawer (C) that drives a locking device (3) of the locking system, all these devices being correlated with each other by means of a base plate (1) of the lock system mounted on the furniture, and including that the base plate (1) mounts a plurality of support modules (2) capable of moving longitudinally therein, and which is mounted on the modules- fixed support (2), the locking device (3), with means for mutual interlocking / unlocking between the support module (2) and the locking device (3), so that the base plate (1) ) it has longitudinal grooves (11) and the support modules (2) have rear flanges (21) conjugated with the longitudinal grooves (11) of the plate (1) and so that the means for mutual interlocking / unlocking between the support module (2) and the block device or (3) allows mutual interlocking / unlocking by applying a linear effort in an angled direction with respect to the direction of travel of the drawer, characterized in that the means for mutual interlocking between module-support (2) and locking device (3) are constituted in each module-support (2) by longitudinal guide-slits (22) delimited by front tabs (24) and defining in its bottom transverse pockets (23) and are constituted in each locking device (3), (3 ' ) by a blind pocket (31) of dimensions conjugated with those of the front tabs (24) of the support module (2) and side tabs (32) conjugated with the guide slits (22), which define at its edge conjugated projections (33) of said transverse pockets (23) in which they are housed by elastic deformation.