Lock with improved locking system

Abstract

The invention relates to a lock with an improved locking system, including a lock block attached to a support by means of at least two fastening screws, with a door arranged between the lock block and the support, the lock including grub screws screwed into the support, which project from the support by a length according to the portion of grub screw screwed into the support, such that the length matches a clearance between the door and the support.

Claims

1. A lock with an improved locking system comprising a lock block, a support, at least two fastening screws that fasten the lock block to the support with a door located between the lock block and the support, such that a rotation of a shaft comprised within the lock block and fixed to a platen causes the platen to come into contact with a block positioned at a distance from the door to restrict the door from being opened, wherein the lock comprises a plurality of grub screws screwed into the support that project a length from the support, the length depending on a portion of the grub screw screwed into the support, wherein the length matches a clearance existing between the door and the support, the clearance depending on a depth of the door so that the lock fastens doors with a variety of depths.

2. The lock with an improved locking system according to claim 1, wherein if at least one chock of a thickness is located between the lock block and the support, the thickness of at least one chock together with the length of the grub screws matches the clearance existing between the door and the support.

3. The lock with an improved locking system according to claim 1, wherein the support comprises: a rectangular body, an interior rectangular structure configured by four perimeter walls that project out of the rectangular body, a series of perimeter holes in the rectangular body, and at least two holes in at least two corners of the interior rectangular structure, wherein the grub screws are located in the perimeter holes of the rectangular body.

4. The lock with an improved locking system according to claim 2, wherein the at least one chock comprises a hollow rectangular structure.

5. The lock with an improved locking system according to claim 4, wherein the hollow rectangular structure of the at least one chock comprises internal tabs.

6. The lock with an improved locking system according to claim 5, wherein the internal tabs of the hollow rectangular structure butt up against the perimeter walls of the interior rectangular structure.

7. The lock with an improved locking system according to claim 3, wherein the interior rectangular structure comprises on one side a guide gap for the guided path of a shaft of the lock block through the support.

8. The lock with an improved locking system according to claim 3, wherein the support comprises protrusions in the corners of the rectangular body that project perpendicularly to the rectangular body.

9. The lock with an improved locking system according to claim 8, wherein the protrusions of the support are U-shaped with housings between the U-shaped protrusions.

10. The lock with an improved locking system according to claim 9, wherein the hollow rectangular structure of the at least one chock comprises internal tabs, and wherein the internal tabs of the hollow rectangular structure butt up against the perimeter walls of the interior rectangular structure and are situated corresponding to the housings between the protrusions of the support.

11. The lock with an improved locking system according to claim 2, further comprising a plurality of chocks with thicknesses of different values.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) To complete the description, and for the purpose of helping to make the characteristics of the invention more readily understandable, the present specification is accompanied by a set of figures constituting an integral part of the same, which by way of illustration and not limitation represent the following:

(2) FIG. 1 is an exploded perspective view of the lock object of the invention.

(3) FIG. 2 is a lateral view of the lock object of the invention.

(4) FIG. 3 is a perspective view of a support of the lock object of the invention.

(5) FIG. 4 is a perspective view of a chock of the lock object of the invention.

(6) The various numerical references found in the figures correspond to the following elements:

(7) 1.door,

(8) 2.lock block,

(9) 3.support,

(10) 4.chock,

(11) 5.fastening screws,

(12) 6.grub screws,

(13) 7.main body,

(14) 8.booth,

(15) 9.shaft,

(16) 10.platen,

(17) 11.block,

(18) 12.interior rectangular structure,

(19) 13.perimeter holes,

(20) 14.holes,

(21) 15.protrusions,

(22) 16.internal tabs,

(23) 17.rectangular body,

(24) 18.hollow rectangular structure,

(25) 19.rectangular gap,

(26) 20.guide gap,

(27) 21.threaded housing,

(28) 22.wall,

(29) 23.housing,

(30) D.distance,

(31) E.thickness,

(32) G.depth,

(33) H.clearance, and

(34) L.length.

DESCRIPTION OF THE INVENTION

(35) The object of the invention is a locker and/or cabinet lock that has an improved locking system, such that through the elements of its door (1) locking system it solves the problems mentioned in the background of the invention.

(36) For the placement of the lock object of the invention, the door (1) has a rectangular gap (19) wherein the cited lock is placed.

(37) The lock object of the invention comprises: a lock block (2), a support (3), grub screws (6), three fastening screws (5).

(38) The lock block (2) comprises a main body (7) from which a rectangular-shaped booth (8) projects out where the mechanisms for moving a shaft (9) associated with a platen (10) are incorporated, such that the shaft (9) comes out perpendicularly from the booth (8). Likewise the booth (8) comprises three threaded housings (21) to screw the fastening screws (5) into.

(39) With the door (1) closed, a rotation of the shaft (9) makes it come into contact with the platen (10) with a block (11) situated in the gap of the locker and/or cabinet that closes the mentioned door (1), through this contact preventing the door (1) from being opened.

(40) The support (3) of the lock object of the invention comprises:

(41) a rectangular body (17), an interior rectangular structure (12) configured by four perimeter walls (22) that project from the rectangular body (17), a series of perimeter holes (13) in the rectangular body (17), and three holes (14) in three corners of the interior rectangular structure (12).

(42) On one side the interior rectangular structure (12) comprises a guide gap (20) for the guided path of the shaft (9) of the lock block (2) through the support (3).

(43) The lock block (2) is introduced through the rectangular gap (19) of the door (1) and the lock block (2) is fastened to the support (3) via three fastening screws (5) that are screwed into the threaded housings (21) of the booth (8), such that the booth (8) is made to face the walls (22) of the interior rectangular structure (12).

(44) The support (3) of the lock object of the invention, in a second embodiment, comprises protrusions (15) in the corners of the rectangular body (17), said protrusions (15) being U-shaped, with housings (23) between the protrusions (15). This second embodiment of the support (3) is used for doors (1) in which the rectangular gap (19) wherein the lock object of the invention is placed is longer.

(45) The support (3) in the embodiment that includes the protrusions (15) adapts the lock to doors (1) with larger rectangular gaps (19) than the support (3) without protrusions (15), such that the lock object of the invention adapts to different sizes of rectangular gaps (19) in the doors (1) of the lockers.

(46) In the lock object of the invention, when the lock block (2) is attached to the support (3) through the fastening screws (5), between the lock block (2) and the support (3) there is a distance (D), and likewise the door (1) in which the lock object of the invention is placed has a depth (G), said depth (G) usually being smaller than the distance (D) between the lock block (2) and the support (3), such that a clearance (H) is created which is the same as the distance (D) between the lock block (2) and the support (3), reducing the clearance (H) due to the depth (G) of the door (1).

(47) In order to match said clearance (H), the lock object of the invention comprises grub screws (6), said grub screws (6) being screwed into the perimeter holes (13) of the support (3), such that as said grub screws (6) are screwed more or less into the perimeter holes (13) a greater or lesser length (L) projects out.

(48) If through the grub screws (6) it is not possible to match the clearance (H) in its entirety, at least one chock (4) is used, which is placed between the lock block (2) and the support (3).

(49) There are different embodiments of chocks (4) that are differentiated from each other because they have different thicknesses (E); thus, in order to match the aforementioned clearance (H), chocks (4) of different thicknesses (E) are combined.

(50) Thus, in order to match the clearance (H) in its entirety, it is possible to combine chocks (4) of different thicknesses and grub screws (6) with adjustable lengths (L).

(51) The chocks (4) of the lock object of the invention comprise a hollow rectangular structure (18) that comprises internal tabs (16) that make possible the placement of the chocks (4) whether the support (3) has the protrusions (15) or does not have said protrusions (15).

(52) In the first embodiment of the support (3), in which it does not comprise protrusions (15), the internal tabs (16) of the chocks (4) butt up against the perimeter walls (22) of the interior rectangular structure (12) of the support (3).

(53) In the second embodiment of the support (3), the one which does comprise the protrusions (15), the chocks (4) are situated around the protrusions (15) of the support (3) and the internal tabs (16) of the chocks (4) butt up against the perimeter walls (22) of the interior rectangular structure (12), said internal tabs (16) becoming fastened in the housings (23) generated between the U-shaped protrusions (15).

(54) The grub screws (6) are held in the chocks (4), whereby this configuration does not damage the door (1) since the pressure is spread out uniformly with the surface of the chock (4).

(55) In other words, in the lock, in order to match the clearance (H), first the grub screws (6) are used and, if through said grub screws (6) it is not possible to match the clearance (H) exactly, chocks (4) of different thicknesses (E) are used. The lock assembly object of the invention, using the grub screws (6) and if necessary, combining chocks (4), facilitates the assembly process for the worker.

(56) In the lock in which grub screws (6) are used together with the chocks (4), said grub screws (6) do not project out of the support (3), whereby the unsightly effect that was produced by the locks known in the state of the art is avoided.

(57) With the configuration explained here, the contact of the support (3) with the door (1) is made through the chocks (4), whereby the door (1) is not damaged as occurs with the adjustment system known until now.

(58) In the lock object of the invention, the chocks (4) keep their integral structure since the fastening screws (5) that join the lock block (2) and the support (3) do not have any interaction with the cited chocks (4).

(59) Since the stress is on the perimeter, and due to the depth of the support (3), the latter does not bend as in other supports in the state of the art that are no more than sheets.

(60) The stress generated in the grub screws (6), with the lock object of the invention, is distributed: on one side of each grub screw (6), as the grub screws (6) exert load on the chocks (4) the point load transforms into a surface load, in other words, the load that the chock (4) puts on the door (1) is uniform because of the contact surface between the chock (4) and the door (1), and on the other side of each grub screw (6), the stress generated on the support (3) upon fastening the lock block (2) to the support (3) is distributed uniformly over the cited support (3) by screwing the grub screws (6) into the perimeter holes (13), without generating localized stress in one point as was the case in the systems used until now, such that a more solid and safe fastening is achieved than with the cited systems used until now.

(61) The invention must not be seen as limited to the particular embodiment described in this document. Those skilled in the art may develop other embodiments in light of the description made herein. As such, the scope of the invention is defined by the following claims.