DE7729056U1 - DOOR LOCK RETURN OR RESET DEVICE - Google Patents

Description

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The invention relates to a door handle return or Reset device with spiral spring to reset the Doorknob returns to its starting position after pressing it down to open the door.

Usual door handles have a handle with a square tenon is coupled to actuate the snap part. The door handle also has a cover plate for fastening on the door and to cover the guide hole for the square pin and to hold the handle on the door.

The cover plate holding means provided on their rear side, extending down to the door projections, a coil spring which is disposed the square pin and the immediately moved back to the door handle by the depression again in their initial position β.

This known fastening of the spiral spring has the disadvantage, among other things, that the spring, as a result of its contact with the door not only damages the door material, but also creates considerable resistance when moving over the door material occurs, 'through which the restoring effect for the square pin and thus the grip is noticeably impaired.

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It is therefore the object of the invention to provide a return or reset device to create, through which there is no damage to the door material and which has a strong restoring effect has.

In order to achieve this object, the device is described in the introduction mentioned type designed in such a way that the spiral spring on a provided between the cover plate and the door, small plate is supported, which has a profiled hole for the passage and limited rotation of the cross-section has rectangular or square ratchet axis.

The invention is explained in more detail below with reference to the figures showing an exemplary embodiment.

Figure 1 shows a perspective view of a door handle with the reset device according to the invention, wherein the cover plate assigned to the door handle is shown as transparent.

Figure 2 shows an enlarged rear view of the device according to the invention with the section in both End positions shown square axis.

On the door handle 1 shown in the figures is a square axle or a square pin 2 is attached, and it is rotatably arranged in a bore in the cover plate 3. This The cover plate is attached to the door in a known manner and has a substantially C-shaped cross-section 4.

In that of the cover plate 3 due to the C-shaped cross section 4, the device 5 according to the invention is located on the square axis 2.

The device 5 has a small plate 6 with bent side webs 7 which abut the cover plate 3. Furthermore, the small plate 6 is essentially square or rectangular so that it cannot rotate when it is installed. In the small plate 6 there is a central bore 8 which is profiled in such a way that the square axis 2 extending through it can execute a limited rotational movement. For this purpose, incisions 9 are provided in the bore δ, which are evenly distributed along the circumference and enable the rotary movement of the square axis 2. If the handle 1 is rotated to open the door, the square axis comes to rest on an inclined edge 10 of the incisions 9.

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On the small plate 6 is bent out of the plate by means Tongues 11 are attached to a spiral spring 12, the shape of the inner coil 13 of which is attached to the circumference of the square pin 2 is adapted.

Vie, η thus the handle 1 is turned to open the door, comes the square pin 2 from the position shown in Figure 2 in the position shown in dashed lines, and that on the circumference of the square pin 2 adjacent spring 12 exercises on the square pin a pressure through which this and the handle 1 moved back to the starting position after release will.

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Claims (4)

UEXK'ÜU * "s'TOLafeRG:: PATENTANWÄLTE 2 H AM BURG 52 BESELERSTRASSE i DR. J.-D. FRHB. Von UEXKÜLL '" »DR. ULRICH GRAF STOLBERG DIPL-ING. JÜRGEN SUCHANTKE VALLI & COLOMBO S.p.A. (Priority: November 3, 1976 Via Concordia, 16 IT 2245 ° B / 76 "14392) Hamburg, September 19, 19 Door handle return or reset device Protection claims 1. Doorknob return or reset device with spiral spring, characterized in that the spiral spring (12, 13) on one between the cover plate (4) and the door provided, small plate (6) is supported, which has a profiled hole (8) for passage and limited Has rotation of the cross-section rectangular or square ratchet axis (2). 2. Doorknob return or reset device according to claim 1, characterized in that the inner helix 7729056 01/05/78 (13) at least partially corresponding to the spiral spring (12) the circumference of the pawl axis (2) is shaped. 3. Doorknob return or reset device according to claim 1 or 2, characterized in that the profiled bore (8) in the small plate (6) has a uniform number having distributed incision (9). 4. Doorknob return or reset device after a
of claims 1 to 3, characterized in that the
small plate (6) is square or rectangular and a
Pair of sidebars (7) on front. 7729056 01/05/78