SU756507A1 - Switching device - Google Patents

Description

The invention relates to electrical switches and can be used for switching low-voltage electrical circuits in radio electronic, telephone technology and automation.

Known switching devices that contain a control lever that interacts with strips installed with the possibility of reciprocating movement in parallel planes, and the contact system [H] and [2].

These switches are not reliable enough.

The purpose of the invention is to increase reliability.

"This is achieved by the fact that in the switching device of the strap, 2 θ hl ^ is made with grooves, and the control lever is equipped with protrusions and is installed so that its protrusions have the ability to interact with the slots of the slats.

FIG. 1 and 2 shows the switch 25 tel, general view; in fig. 3 and 4 - one half of the switch in two positions of the leading bar.

The design of the switching device consists of two identical pe2

switches, which are placed in a stapled housing 1, (Fig. 1 and 2). Each switch separately consists of a leading bar 2, which is spring loaded with the lower part by the contact springs 3 of the contact system, and the upper part is spring loaded by the spring 4. Due to the force of the spring 4 applied through the stop 5 to the leading bar 2, the latter overcomes the elastic properties of the contact springs 3 fixed in one of the extreme positions of the center of the housing 1. In the initial position, the leading strips 2 of each switch are in opposite each other extreme positions (FIG. 1). The control lever 6 fixed to B 7 is provided with two protrusions 8 "dovetail" which in the rest (middle) position the control lever 6, are included in the special for their grooves 9 formed in veduschihplankah 2. The handle 10 is convenient for handling control lever 6.

The interaction of the control lever 6 with leading strips 2 consider the work of one switch, which is located behind the lever, control b

756507

(Fig. 3 and 4). For the convenience of consideration of the work switch located

closer relative to the control lever

'not shown.

FIG. 3 shows the lever 6 control in the initial (middle) position, and its left protrusion is inserted into the groove 9 of the leading bar 2. At the same time, the right protrusion 8 is inserted into the groove of the invisible leading bar 2 of the second switch.

When the control lever 6 moves from the middle to the left extreme position, its lower part will receive a movement in the right direction. The left protrusion 8 resting on the right end of the groove. 9 will start pushing the leading bar 2 towards the center of the housing 1. At the same time, the right protrusion 8 describing the radius relative to the axis 7, will begin to freely exit from the groove 9 of the invisible leading bar 2 of the second switch. Having passed the center of the housing 1, under the influence of the force of the spring 4, the guide plate 2 will rush into the right extreme position of the housing 1 and the left end of the groove 9, resting against the angle x of the protrusion 8, carries away the control lever 6. for a.

When returning the control lever 6

’In the initial (middle) position of the angle x resting against the left end of the groove 9

and overcoming the pressure of the spring 4 will begin to push the driving bar 2 to the center of the housing 1. After passing through the center, the driving bracket 2 will carry the control lever 6 and put it in its original position. The angle x will be released from engagement with the left end of the groove 9. The operation of the control lever 6 with one of the switches is completed. The operation of the second switch with the control lever 6 is identical to that of the

Claims (1)

Claim A switching device that contains a control lever that interacts with strips installed with the possibility of reciprocating movement in parallel planes, and a contact system, characterized in that, in order to increase reliability, the strips are made with grooves, and the control lever with protrusions and installed so that its projections have the ability to interact with the grooves of the slats.