DE102010038085B4 - Locking device for a door or the like - Google Patents

Abstract

Locking device for a door, with a slide (2) guided in a slide rail (1), a swivel latch (6), a swivel lever (9) and a latching element (13), the swivel latch (6) being controlled by the slide (2) can be transferred from an "open" position to a "closed" position, - holds the pivoted lever (9) in its "open" position and releases the sliding piece (2), - in its "closed" position, the pivoted lever ( 9) releases and holds the slider (2), and the pivoted lever (9) can be locked in its pivoted position by the latching element (13).

Description

The present invention relates to a locking device for a door or the like.

Locking devices for doors or the like are well known. However, these known locking devices are generally quite bulky, so that they are not suitable for use in small slide rails.

DE 10 2005 001 315 A1 relates to an electromechanical locking device for a door drive, the door drive having a sliding piece which is guided in a slide rail and which can be acted upon by the locking device. It is provided that the locking device has a two-armed rocker, one arm of which can be brought into engagement with the slider and the other arm of which an electrically actuable blocking element can be acted upon.

DE 103 00 333 A1 shows a locking device for a slide shoe of a door closer that is displaceably mounted in a guide rail. In this case, an electromagnet is provided, by means of which a latching element can be fixed in a position that arrests or holds the sliding shoe.

It is therefore the object of the present invention to provide a locking device for a door or the like which is simple in construction and requires only little space, so that it can also be used in particularly small slide rails.

• - durch das Gleitstück aus einer „Offen“-Stellung in eine „Geschlossen“-Stellung überführbar ist,
• - in ihrer „Offen“-Stellung den Schwenkhebel hält und das Gleitstück freigibt,
• - in ihrer „Geschlossen“-Stellung den Schwenkhebel freigibt und das Gleitstück hält, und

der Schwenkhebel in seiner verschwenkten Stellung von dem Rastelement arretierbar ist.This object is achieved by a locking device for a door or the like., With a sliding piece guided in a slide rail, a swivel latch, a swivel lever and a locking element, the swivel latch

• - can be transferred from an "open" position to a "closed" position by the sliding piece,
• - holds the swing lever in its "open" position and releases the slider,
• - in its "closed" position, releases the swing lever and holds the slider, and

the pivoted lever can be locked in its pivoted position by the latching element.

Such a locking device is particularly small, since the necessary elements can be accommodated in a very small space.

The dependent claims relate to advantageous developments of the invention.

According to an advantageous development, a spring-loaded, pivotable bracket is provided on the slider, which can be brought into engagement with the pivot latch.

The swivel latch is advantageously acted upon by a spring in the "closed" position.

Furthermore, according to a preferred embodiment, the pivoting lever is acted upon by a spring in the direction of the pivoting latch.

According to an advantageous further development, an electromagnet is provided which brings the locking element into engagement with the swivel lever when energized and releases it when de-energized. This ensures that the locking of the door or the like is canceled in the event of a power failure.

According to a preferred further development, the pivoting axis of the pivoting lever is mounted in a slot and can be displaced against it by the force of a spring as an overload protection device.

An alternative embodiment of the overload protection is that the pivot axes of the pivot latch and the pivot lever are arranged on a common slide that can be moved against the force of a spring.

In order to be able to adjust the locking device according to the invention, the swivel latch, the swivel lever, the locking element and the magnet are advantageously arranged on a common carrier which can be fixed within the slide rail.

According to a preferred development, the slider can run over the carrier completely. This enables a larger door opening angle behind the hold-open point.

• 1 die erfindungsgemäße Feststellvorrichtung gemäß einer ersten Ausführungsform,
• 2 bis 4 den Bewegungsablauf der einzelnen Komponenten bei einer Aktivierung der erfindungsgemäßen Feststellvorrichtung gemäß der ersten Ausführungsform,
• 5 die erfindungsgemäße Feststellvorrichtung gemäß der ersten Ausführungsform mit einer Überlastsicherung, und
• 6 bis 9 den Bewegungsablauf der einzelnen Komponenten bei einer Aktivierung der erfindungsgemäßen Feststellvorrichtung gemäß der zweiten Ausführungsform.

Further details, features and advantages of the invention result from the following description with reference to the drawings. Show it:

• 1 the locking device according to the invention according to a first embodiment,
• 2 until 4 the movement sequence of the individual components when the locking device according to the invention is activated according to the first embodiment,
• 5 the locking device according to the invention according to the first embodiment with an overload protection, and
• 6 until 9 the sequence of movements of the individual components upon activation of the locking device according to the invention according to the second embodiment.

the 1 until 5 show the basic structure of the locking device according to a first embodiment and the movement of the individual components when activating the locking device according to the invention.

In a slide rail 1, a slider 2 is guided over a linkage, not shown. The sliding piece 2 is provided on its front side with a protruding bracket 3, which is indicated by an arrow in the direction of movement, which can be pivoted about a pivot axis 4 against the force of a spring. The bracket 3 can be U-shaped, for example.

Mounted on a carrier 5 that can be fixed in the slide rail 1 by means of screws, clamping plates or the like is a pivot latch 6 that can be pivoted about a pivot axis 7 . The swivel latch 6 is held by a spring 8 ( 4 ) into their in 1 "Open" position shown.

Also mounted on the carrier 5 is a pivoting lever 9 which extends essentially in the longitudinal direction of the slide rail 1 and can be pivoted about a pivot axis 10 and is pressed by a spring 11 against a rear shoulder 12 of the pivot latch 6 .

Also mounted on the support 5 is a latching element 13 which extends essentially transversely to the longitudinal direction of the slide rail 1 and can be pivoted about a pivot axis 14 and moved by a spring 15 into the position releasing the pivot lever 9 according to FIG 1 is pressed.

Finally, an electromagnet 16 is also mounted on the carrier 5 and interacts with an angle element 17 in order to actuate the latching element 13 .

Based on 2 until 4 the sequence of movements when locking the door or the like is explained below.

According to 2 is the locking device according to the invention in the "open" position. If the door o. The like. Are found, the slider 2 through the door o 2 until 4 emotional. The bracket 3 is in a horizontal position and moves into a pocket 18 of the swivel latch 6 .

When the bracket 3 engages the pocket 18 and the slider 2 is moved further to the left, the pivot latch 6 rotates about its pivot axis 7 ( 3 ). At the same time, it swivels the swivel lever 9 about its swivel axis 10 via a control cam 19, supported by the force of the spring 11. During this process, the bracket 3 describes a small swivel, which depends on the distance between the swivel axis 7 of the swivel latch 6 and the pocket 18 The spring-loaded bracket 3 then moves back into its horizontal position. This measure helps to achieve secure latching in the immediate vicinity of the pivot axis 7 of the pivot latch 6 with sufficiently large cross sections of the components.

When the slider 2 moves into the in 4 has moved the position shown, the bracket 3 has transferred the swivel latch 6 to its “closed” position. In this position, the pivot latch 6 rests against a stop 20 . The pivoted lever 9 loaded by the spring 11 is also in contact with the stop 20 . This position is detected by a sensor, switch or the like, which then energizes the electromagnet 16 . The electromagnet 16 now attracts the angle element 17, which can be pivoted about a lateral pivot point, whereby the latching element 13 is pivoted about its pivot axis 14 in the direction of the latching lever 9 and fixes it. Since the locking element 9 rests in this position with its underside on the pivot latch 6 in the "closed" position, it cannot pivot back, as a result of which the door or the like is fixed.

In the event of a power failure, the electromagnet 16 is de-energized. As a result, the latching element 13 is pivoted counterclockwise by the spring 15 and releases the latching lever 9 . The swivel latch 6 now returns to its "open" position as a result of the force of the spring 8 and releases the bracket 3 or the sliding piece 2, which as a result of the door closing force from the in 4 position shown in the in 1 position shown.

In 5 an embodiment variant of an overload protection device is shown.

The overload protection is implemented in that the pivot axis 7 of the swivel latch 6 and the pivot axis 10 of the pivot lever 9 are mounted on a carriage 21 held in position by means of spring force. The spring force must be greater than the holding force of the locking device. In the event of an overload, the carriage 21 can yield against the force of the spring in the direction of the slider 2 and thus releases the locking position of the pivoting lever 9. The slider 2 is thereby released and can return to its in position 1 return to the position shown. A destruction of the locking device according to the invention can thus be avoided even in the event of an overload.

Alternatively, the overload protection can also be realized in that the pivot axis 10 of the pivot lever 9 is mounted in a slot and can be displaced against it by the force of a spring.

the 6 until 9 show the basic structure of the locking device according to a second embodiment and the movement of the individual components when activating the locking device according to the invention. The structure of the locking device according to a second embodiment essentially corresponds to the structure of the locking device according to a first embodiment. For the sake of clarity, only the slide rail has been omitted.

The main difference between the two embodiments is that, according to the second embodiment, the slider 2 can run over the carrier 5 completely. This enables a larger door opening angle behind the hold-open point. For this reason, in this embodiment, the bracket 3 is arranged on the rear side of the slider 2 in the moving direction, while it is arranged on the front side of the slider 2 in the moving direction in the first embodiment.

Based on 6 until 9 the sequence of movements when locking the door or the like is explained below.

According to 6 is the locking device according to the invention in the "open" position. If the door o. The like. Are found, the slider 2 through the door o 6 until 9 emotional. The sliding piece 2 runs over the carrier 5 until the bracket 3, which is in a horizontal position, enters a pocket 18 of the swivel latch 6 ( 7 ).

When the bracket 3 engages the pocket 18 and the slider 2 is moved further to the left over the carrier 5, the pivot latch 6 rotates about its pivot axis 7 ( 7 ). At the same time, it swivels the swivel lever 9 about its swivel axis 10 via a control cam 19, supported by the force of the spring 11. During this process, the bracket 3 describes a small swivel, which depends on the distance between the swivel axis 7 of the swivel latch 6 and the pocket 18 The spring-loaded bracket 3 then moves back into its horizontal position. This measure helps to achieve secure latching in the immediate vicinity of the pivot axis 7 of the pivot latch 6 with sufficiently large cross sections of the components.

When the slider 2 moves into the in 9 has moved the position shown, the bracket 3 has transferred the swivel latch 6 to its “closed” position. In this position, the pivot latch 6 rests against a stop 20 . The pivoted lever 9 loaded by the spring 11 is also in contact with the stop 20 .

This position is detected by a sensor, switch or the like, which then energizes the electromagnet 16 . The electromagnet 16 now attracts the angle element 17, which can be pivoted about a lateral pivot point, whereby the latching element 13 is pivoted about its pivot axis 14 in the direction of the latching lever 9 and fixes it. Since the locking element 9 rests in this position with its underside on the pivot latch 6 in the "closed" position, it cannot pivot back, as a result of which the door or the like is fixed.

In the event of a power failure, the electromagnet 16 is de-energized. As a result, the latching element 13 is pivoted counterclockwise by the spring 15 and releases the latching lever 9 . The swivel latch 6 now returns to its "open" position as a result of the force of the spring 8 and releases the bracket 3 or the sliding piece 2, which as a result of the door closing force from the in 9 position shown in the in 6 position shown.

In the 5 The embodiment variant of the overload protection shown can also be implemented in connection with the second exemplary embodiment.

The foregoing description of the present invention is for illustrative purposes only and not for the purpose of limiting the invention. Various changes and modifications can be made within the scope of the invention without departing from the scope of the invention and its equivalents.

Reference List

1

sliding rail

2

slider

3

hanger

4

pivot axis

5

carrier

6

swivel latch

7

pivot axis

8th

Feather

9

swing lever

10

pivot axis

11

Feather

12

shoulder

13

locking element

14

pivot axis

15

Feather

16

electromagnet

17

angle element

18

pocket

19

cam

20

attack

21

Sleds

Claims (9)

Locking device for a door, with a sliding piece (2) guided in a slide rail (1), a swivel latch (6), a swivel lever (9) and a latching element (13), the swivel latch (6) - can be transferred from an "open" position to a "closed" position by the sliding piece (2), - holds the swivel lever (9) in its "open" position and releases the sliding piece (2), - releases the swivel lever (9) in its "closed" position and holds the slider (2), and the swivel lever (9) can be locked in its swiveled position by the latching element (13). locking device claim 1 , wherein a spring-loaded pivotable bracket (3) is provided on the slider (2), which can be brought into engagement with the pivot latch (6). locking device claim 1 or 2 , wherein the pivot latch (6) is acted upon by a spring (8) in the "closed" position. Locking device according to one of Claims 1 until 3 , wherein the pivoting lever (9) is acted upon by a spring (11) in the direction of the pivot latch (6). Locking device according to one of Claims 1 until 4 An electromagnet (16) is provided, which brings the latching element (13) into engagement with the pivoted lever (9) when energized and releases it when de-energized. Locking device according to one of Claims 1 until 5 , wherein the pivot axis (10) of the pivot lever (9) is mounted in a slot and can be displaced against the force of a spring. Locking device according to one of Claims 1 until 6 , the pivot axes (7, 10) of the pivot latch (6) and of the pivot lever (9) being arranged on a common carriage (21) which can be moved against the force of a spring. Locking device according to one of Claims 1 until 7 , wherein the swivel latch (6), the swivel lever (9), the locking element (13) and the electromagnet (16) are arranged on a common carrier (5) which can be fixed within the slide rail (2). locking device claim 8 , wherein the slider (2) can completely run over the carrier (5).

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