Emergency release

Abstract

The present disclosure relates to an emergency release for a garage door drive with a sliding latch, wherein the sliding latch is linearly movable by turning a rotary knob.

Description

BRIEF DESCRIPTION OF THE FIGURES

One embodiment of the present disclosure will now be described in detail with reference to the drawing, in which:

FIG. 1 shows a perspective view of the embodiment of the emergency release in accordance with the present disclosure, and

FIG. 2 shows an exploded view of the embodiment of the emergency release in accordance with the present disclosure.

DETAILED DESCRIPTION

FIG. 1 shows the sliding latch 2 of the emergency release in accordance with the present disclosure, which is linearly movable by turning the rotary knob 1. The sliding latch 2 may be coupled in a garage door drive 20. The rotary knob 1 includes a handle 8, an axis of rotation 7 and a toothing 6. The toothing 6 is an external toothing at the lower end of the axis of rotation 7 and thus forms a pinion. The toothing 6 engages a toothed rack 5, which is disposed on the sliding latch 2. The sliding latch 2 includes a release bevel 4, which upon shifting the sliding latch 2 activates the emergency release mechanism. Furthermore, a Bowden line 3 is provided, which likewise engages the sliding latch 2. For this purpose, a groove for the cable of the Bowden line and a terminal recess 13 are provided on the upper surface of the sliding latch, in which recess the head 15 of the Bowden line engages and thus is connected with the sliding latch.

As is indicated by the arrows above the rotary knob 1 and the Bowden line 3, the sliding latch thus can be moved linearly by the rotary movement of the rotary knob 1 or via the linear movement of the Bowden line 3.

FIG. 2 shows an exploded view of the embodiment of the inventive emergency release as shown in FIG. 1. It can be seen that the sliding latch is composed of a latch element 17 and an insert 9. This latch element 17 includes an oblong recess 12, in which the insert 9 is inserted via clip elements 10. The insert 9 also includes a recess, on the inner surface of which the toothed rack 5 is disposed. The toothing 6 of the rotary knob 1, which forms a pinion, now extends into said recess and engages the inner toothing 5 of the insert. In addition, a spring 11 is provided, which is inserted in the recess 12 in the latch element 17 and thus prestresses the sliding element 2 against the rotary knob 1. With its axis of rotation 7, the rotary knob 1 is running in a non-illustrated housing, so that the sliding element 2 is also prestressed against this housing by the spring 11.

On its upper surface above the release bevel, the latch element 17 includes a groove 14, which extends along the direction of movement of the sliding latch and serves to accommodate the pull cable of the Bowden line 3. At one end, the recess 14 includes an enlarged terminal recess 13, in which engages the head 15 of the Bowden line 3, which is ball-shaped, so that the Bowden line 3 is connected with the latch element 15.

The spring 11 now prestresses the sliding latch 2 such that it is in the position shown in FIG. 1 without applying an external force via the rotary knob 1 or the Bowden line 3, in which position the sliding latch 2 is maximally moved to the left. By turning the rotary knob in clockwise direction or by pulling the Bowden line 3 to the right, the sliding latch 2 now can linearly be moved to the right, in order to activate the release mechanism.

Claims

1. An emergency release for a garage door drive with a sliding latch, wherein the sliding latch is linearly movable by turning a rotary knob.

2. The emergency release as claimed in claim 1, wherein the rotary knob includes a toothing and the sliding latch includes a toothed rack, which engage with each other.

3. The emergency release as claimed in claim 1, wherein the sliding latch is prestressed in one direction.

4. The emergency release as claimed in claim 1, wherein a Bowden line additionally engages the sliding latch, by whose actuation the sliding latch is linearly movable.

5. The emergency release as claimed in claim 4, wherein the sliding latch is configured to be independently moved linearly by turning the rotary knob and by actuating the Bowden line.

6. The emergency release as claimed in claim 2, wherein the toothing of the rotary knob is an external toothing and the sliding latch includes an oblong recess, on an inner wall of which the toothed rack is disposed.

7. The emergency release as claimed in claim 6, wherein a spring is disposed in the oblong recess, which prestresses the sliding latch against the rotary knob.

8. The emergency release as claimed in claim 2, wherein the sliding latch includes a latch element and an insert, which are connected with each other by a clip element, with the toothed rack being disposed on the insert.

9. The emergency release as claimed in claims 4, wherein the Bowden line engages the latch element, and where the sliding latch includes a latch element and an insert, which are connected with each other by a clip element, with the toothed rack being disposed on the insert.

10. The emergency release as claimed in claim 1, wherein the sliding latch is configured to activate the emergency release of the garage door drive.

11. A system comprising: a garage door drive;an emergency release coupled in the garage door drive with a sliding latch, wherein the sliding latch is linearly movable by turning a rotary knob, and where the rotary knob includes teeth and the sliding latch includes a toothed rack, where the rotary knob is positioned so that the teeth engage the toothed rack, where the sliding latch is configured to activate the emergency release so that the emergency release cannot be inadvertently activated.

12. The system as claimed in claim 11, wherein the sliding latch is prestressed in one direction.

13. The system as claimed in claim 12, further comprising a Bowden line that additionally engages the sliding latch, and by whose actuation the sliding latch is linearly movable.

14. The system as claimed in claim 13, wherein the sliding latch is configured to be independently moved linearly by turning the rotary knob and by actuating the Bowden line.

15. The system as claimed in claim 14, wherein the teeth of the rotary knob are positioned external to the knob, and the sliding latch includes an oblong recess on an inner wall of which the toothed rack is disposed.

16. The system as claimed in claim 15 further comprising a spring disposed in the oblong recess, which prestresses the sliding latch against the rotary knob.

17. The system as claimed in claim 11, wherein the sliding latch includes a latch element and an insert, which are connected with each other by a clip element, with the toothed rack being disposed on the insert.

18. The emergency release as claimed in claims 16, wherein the Bowden line engages the latch element.

19. An emergency release for a garage door drive, comprising: a rotary knoba sliding latch, wherein the sliding latch is linearly movable by turning the rotary knob, where the rotary knob includes teeth and the sliding latch includes a toothed rack, the knob and sliding latched configured and spaced relative to one another so that the teeth engage with the toothed rack and rotation of the knob actuates the sliding latch to activate the emergency release of the garage door drive.

20. The emergency release as claimed in claim 19, wherein the sliding latch is linearly movable, and where the sliding latch is configured to be independently moved linearly by turning the rotary knob.