SU962567A1 - Automatic device for actuating wings - Google Patents

Description

(54) LVTOMATIC DEVICE FOR CLOSING AND OPENING {OPERATING THE LOCK

one

The invention relates to automatic CMM devices for closing and opening the sash and can be used, for example, to close the covers of radio equipment housings.

An automatic device for closing and opening the sash is known, comprising a torsion spring connected; with frame 1.

The disadvantages of this device in-, are low reliability and inconvenience of use.

The purpose of the invention is to increase the reliability and usability., 5

This chain is achieved by the fact that in an automatic device for closing and opening a sash containing a torsion spring a bracket is attached to the frame on the sash, in the middle 20 of the spring there is a loop in contact with the bracket, with the ends of the torsion spring and the loop base fixed on frame.

The drawing shows the estimated device, axonometric.

The device for closing and opening the flap contains a torsion spring 1 connected to frame 2 and a flap 3 on which bracket 4 is fixed. In the middle part of spring 1 is made a loop that contacts with bracket 4, Konsh 5 of torsion spring 1 and base 6 mounted on the frame 2 using the supports 7-10, the Frame 2 is fixed on the box 11,

The device works as follows ..

By the force of the arm, the flap 3 is retracted from the frame 2, whereby With the aid of the hinge, lOjicHoii 1 is twisted, turning in supports 7-10 and increasing the return moment. When applying the arms to the flap 3 in the direction of the loop, the clamp 4 slides along the loop, thus providing the possibility of either a larger opening angle of the flap or its complete removal. 396 The introduction of a curved in a petty-shaped middle part of the torsion allows the sash to be attached to the torsion using a peg-detachable method, which greatly improves access to the internal frame volume, which facilitates the operation of the device. Claims An automatic device for closing and opening the sash, comprising 7 torsion spring connected to the frame, characterized in that, with a chain to increase reliability and ease of use, a bracket is attached to the sash, in the middle part of the spring there is a loop in contact with the bracket, and the ends The torsion spring and the hinge base are attached to the frame. Sources of information taken into account in examination 1, France Patent Мз 2236377, cl. E O5, F 1/08, 1978.

Claims (1)

SUMMARY OF THE INVENTION <0 An automatic device for closing and opening a leaf, comprising> 7 4 a torsion spring connected to a frame, characterized in that, with a chain for increasing reliability and ease of use, a bracket is fixed to the leaf, a loop contacting is made in the middle part of the spring ' with a bracket, and the ends of the torsion spring and the base of the loop are fixed to the frame.