SU1173573A1 - Attachment device - Google Patents

Abstract

A FIXING DEVICE, mainly an electronic unit in a rack, containing a case and a rotary knob, inside of which a L-shaped stopper is located, so that, with a view. reliability and manufacturability, end articulating surfaces of the body and handles are made in the form of an eccentric clamp, slots forming segmental petals are made on the handle, and a bevel is made on the back side of the L-shaped projection.

Description

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The invention relates to electronics and can be used in the design of electronic equipment.

The purpose of the invention is to increase safety, simplify manufacturing technology while improving operational capabilities.

Performing the end articulating surfaces of the handle and the housing in the form of an eccentric clamp allows you to increase the reliability of the clamp by 1.52 times compared with the screw, by creating a much greater force, and the segment lobes on the handle due to elastic deformation prevent the device from unscrewing constant friction force at the eccentric clamping point.

FIG. 1 shows the device, the stopper is in the locked position, general view; in fig. 2 view A in FIG. 1 (on the dark side of the L-shaped stopper, which is in the locked position); in fig. 3 is a view B in FIG. 1 (at the end of the handle); in fig. 4 shows a section B-B in FIG. 1 (on the limiting projections of the stopper); in fig. 5 - the device, the stopper is in the zero position, general view; in fig. 6 is a view of FIG. 5 (to the dark side of the stopper in the zero position), in FIG. 7 is a view of D in FIG. 5 (at the end of the handle, when the stopper is in the zero position); in fig. 8 is a section of the EE of FIG. 5 (over the limiting protrusions of the stopper in the zero position).

73573 2

The device for fixing comprises a body 1, a handle 2. The face articulated surfaces 3 of the body and the handles are made in the form of an eccentric clamp (for example, Archimedes spirals with an elevation angle of 4). An L-shaped stopper 4 is inserted into the holes of the handle and the body, which has a protrusion 5, with which the block 6 is attached to the instrument rack 7 in the groove 8. The handle 2 has slots 9 that form segmental petals 10 on the handle. pins 11 entering the annular cavity 12 on the stopper. The back side of the L-shaped stopper has a bevel 13 and limiting projections 14.

The device works as follows.

A device comprising a housing and a handle in which a L-shaped stopper with pins is inserted is inserted into the opening 15 of the block and fixed with a pin (not shown). By turning the knob 2 90 clockwise, select the gap between the stand 7 and the protrusion 5. A further twist on 90 creates the necessary force to hold the stopper against the block by means of an eccentric clamp on the surface3. In this case, the slits 9 on the handle 2 create the necessary force preventing self-unscrewing. The movement of the stopper on its axis provide two pins 11 in the handle and a circular depression - an annular depression 12 on the stopper. The zero horizontal position of the protrusion 5 of the stopper and its restriction of movement or installation in O is ensured by the limiting bevel 14.

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Claims (1)

DEVICE FOR FIXING, mainly an electronic unit in a rack, comprising a housing and a rotary handle, inside of which a L-shaped stopper is placed, which is connected with the fact that, in order to increase reliability and manufacturability, the end articulating surfaces of the housing and handles are made in the form of an eccentric clamp, slots are made on the handle, forming segmented petals, and a bevel is made on the back side of the protrusion of the L-shaped stopper. fPut.f SU., .. 1173573 1173577 l