Door Gap Lock

Abstract

A door gap lock includes a door leaf part that is configured to be arranged on a door leaf and that has an axially slidably mounted locking bolt, and includes a frame part that is configured to be arranged on a door frame and has a rotatably mounted pivot lever, where the locking bolt can be slid into a guide on the pivot lever and, during a relative movement between the door leaf part and the frame part, the locking bolt is guided in a form-fitting manner in the guide so as to be slidable therein over a defined distance, and where the guide when arranged in the pivot lever has a predetermined breaking point at which the locking bolt breaks through the guide when a defined force is applied to the locking bolt.

Claims

1.-7. (canceled)

8. A door gap lock, comprising: a door leaf part configured for arrangement on a door leaf; an axially slidably supported locking bolt; a frame part configured for arrangement on the door frame; a pivot lever supported for rotational movement, the locking bolt being pushable in a guide on the pivot lever and, with a relative movement between the door leaf part and the frame part, being guided in a form-fitting manner in the guide and slidable therein over a defined distance; wherein the guide when arranged in the pivot lever has a predetermined break point at which the locking bolt breaks through the guide when a specific force is exerted on the locking bolt.

9. The door gap lock as claimed in claim 8, wherein the predetermined break point is arranged at an end of a movement section of the locking bolt provided in the guide.

10. The door gap lock as claimed in claim 8, wherein the predetermined break point is formed as a component releasably attached to the pivot lever.

11. The door gap lock as claimed in claim 9, wherein the predetermined break point is formed as a component releasably attached to the pivot lever.

12. The door gap lock as claimed in claim 10, wherein the predetermined break point is formed as a sheet metal flexible part which, when a specific force is exerted on the locking bolt, bends to allow the locking bolt to leave the guide.

13. The door gap lock as claimed in claim 10, wherein the predetermined break point is comprises as a molded metal part which breaks when a specific force is exerted on the locking bolt.

14. The door gap lock as claimed in one of claim 8, further comprising: a facility arranged on the frame part, said facility detecting the breakage of the predetermined break point.

15. The door gap lock as claimed in claim 14, wherein the facility for detecting the breakage of the predetermined break point comprises an electrical or optical cable which is interrupted when the predetermined break point is broken.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Further features and advantages of the invention will now be explained with reference to the accompanying drawings, in which:

[0025] FIG. 1 is a view of the opening side of a door gap lock in accordance with the invention;

[0026] FIG. 2 is a view of the closing side of a door gap lock in accordance with the invention;

[0027] FIG. 3 is view of a door leaf part in accordance with the invention; and

[0028] FIG. 4 is a view of a frame part in accordance with the invention.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

[0029] FIG. 1 shows by way of example and schematically a door gap lock in a view of the opening side. A door gap lock 1 is shown in the installed state, which comprises a door leaf part 2 attached to a door leaf 9 and a frame part 3 attached to a door frame 10. The door gap lock 1 is shown from the opening side of the door, from which side the door gap lock 1 is usually operated, i.e., the locking bolt 5 is slid axially. Also located on this side is the actuation apparatus of the door gap lock 1, this is not shown in FIG. 1, however. The frame part 3 comprises a pivot lever 4 supported pivotably on a base body of the frame part 3, which at its resting position is arranged sunken in the base body of the frame part 3 and can be held elastically in this rest position via a withdrawal apparatus, for example, a spring. FIG. 1 shows the door gap lock in a use position, in which the door leaf 9 is opened by a specific angle but cannot be opened any further. To this end, the locking bolt 5 is extended and engages in the pivot lever 4, which comprises a guide for this purpose. Through the opening of the door leaf 9, the pivot lever 4, engaging in a form-fit manner with locking bolt 5, is pivoted out from its rest position and, when this is done, assumes a pivot angle, which is calculated form the geometry of the component (the height offset between the locking bolt 5 and the length of the pivot lever 4). In this use position of the door gap lock 1 shown in FIG. 1, the locking bolt 5 comes into contact with the end of the guide 6 and can transfer a force to this end of the guide 6 (see FIG. 2). Arranged at this position, at the end of the guide 6 in the pivot lever 4, is a predetermined breaking point formed as a sheet metal flexible part 7. The sheet metal flexible part 7 is dimensioned so that, when a force is exerted on it by the locking bolt 5, it deforms so that the locking bolt 5 can slide out of the guide 6 and it releases the locking bolt 5 and the door leaf 9 connected to it. The force required for this must be smaller than that force at which the further components of the door gap lock 1, the door leaf 9, the door frame 10 and especially the means of attachment for arrangement of the door gap lock 1 on the door leaf 9 or the door frame 10.

[0030] FIG. 2 shows by way of example and schematically a door gap lock in a view of the closing side. The door gap lock 1 from FIG. 1 is shown in the locked position and with the door leaf open. In this view, the guide 6 arranged in the pivot lever is visible, into which the locking bolt 5 engages. The guide 6, at the end facing towards the axis of rotation of the pivot lever 4, has an opening, into which the locking bolt 5 in the guide 6 in the rest position of the door gap lock 1 can be pushed unimpeded.

[0031] FIG. 3 shows by way of example and schematically a door leaf part. A door leaf part 2 with a completely extended locking bolt 5 is shown. The locking bolt is formed in the exemplary illustrated embodiment as a mushroom pin.

[0032] FIG. 4 shows by way of example and schematically a frame part. The frame part 3 from the exemplary embodiment illustrated in FIG. 1 with the pivoted-out pivot lever 4 is shown. Here, the guide 6 arranged in the pivot lever 4 with the opening for pushing in a locking bolt and the predetermined breaking point is visible. Here, the guide 6 is open at its end facing away from the axis of rotation or the pivot lever 4, so that a locking bolt guided in it can slide out at this point from the pivot lever 4 but is prevented from doing so by the predetermined breaking point. The predetermined breaking point is formed as a sheet metal flexible part 7 and is connected releasably to the pivot lever 4 via two screw connections 8.

[0033] Thus, while there have been shown, described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions and substitutions and changes in the form and details of the devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the invention. For example, it is expressly intended that all combinations of those which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Moreover, it should be recognized that structures and/or elements shown and/or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form or embodiment as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.