SU419995A1 - BUTTON SWITCH - Google Patents

Description

Known pushbutton switches with alarms contain a fixed housing with a signal lamp mounted on it, a movable bracket, a switching strip with protrusions, a translucent material cap, a locking mechanism, and microswitches with intermediate springs. In these switches, the extension of functionality with an increase in the number of switching elements switched by one button causes a significant increase in the size of the non-switch.

In order to eliminate this disadvantage in the proposed switch, the microswitches are located on both sides of the switching bar, the protrusions of which are made according to a given program.

FIG. 1 shows the proposed switch; in fig. 2 - various positions of microswitches.

On the horizontal platform at the top of the movable bracket 1 is attached with screws spring-holder-2, which holds the signal cap 3. For the lower limb of the movable bracket-pinch 4 is hooked on one end of the return spring 5, which on the other end is hooked on the screw screwed into the housing 6. To the horizontal platform A movable bracket is also attached to the switching bar 7, which enters from below into the slot of the guide 8.

A pin 9 of the retainer, which is included in the vertical groove in the housing 6 on the side of the retainer 10, is attached to the vertical slide of the movable retainer. The retainer 10 is freely fixed by means of its hole on the inside of the retainer, which is the axis of the retainer's lie. A spring 11 is put on the same screw-axis, which is fastened at one end to the bend of the clamp 10, and the other end is attached to the limiter screw 12 of the clamp stroke. The latch 10, its screw-axis, the screw-limiter 12 and the spring 11 is attached to the left vertical side of the housing. On the right vertical face there are fixed switches 13, 14, intermediate springs 15, 16 and guide 8. At the center of the button is a signal lamp 17 with a lamp holder attached to the housing 6. The lamp 17 through the hole in the horizontal bend of the movable bracket 1 displays the signal icon 3 on which can be engraved on the bottom.

The operating principle of the proposed switch is as follows.

FIG. 1 and FIG. 2a, the kiosk is shown in its original position, at which the switching bar 7 ne exerts pressure on the intermediate external ports 15 and 16. When the operator finger on the signal cap (3) moves the moving bracket 1 to the lowest position (Fig. 26),

stretching the return spring 5. In this case, the switching pad 7 slides along the actuator 8 downward, exerting pressure with its protrusions on the intermediate springs 15, 16. The intermediate terminals, in turn, put pressure on the buttons 18 of the microswitches that operate, producing the switching of their contacts (the position of Fig. 26, where the shaded boxes indicate that the microswitches are in the switched state). Simultaneously, the lock clamp 9 moves along a vertical slot in the housing 6 and puts pressure on the rounded surface of the hook of the lock 10, forcing it to turn to the side and squeeze its bent bottom edge of the spring pin P. The movement of the pin 9 of the lock down and the turn of the lock occurs until until it comes off the rounded surface of the retainer hook. In this argument, the pin 9 falls onto the front platform in front of the oblique protrusion under the hook of the oryxator 10, preventing the movable bracket i from moving further down and thereby terminating the pressing process. After the operator's finger is released, the movable bracket 1, under the action of the return spring 5, begins to move upwards. The switching strap 7 also moves upwards and its short protrusions release the intermediate springs 15, the microswitches 13 go back to their original position, and the switching strap 7 stops its movement until its long protrusion has not yet come out of contact with its intermediate edge ; another 15, thus leaving the microswitch 14 in its arresting position (Fig. 2 0). At the same time, the pin 9 of the retainer also moves upwards, touching the vertical edge of the oblique vystuna of the retainer 10 until it reaches the inclined edge of the oblique protrusion, after which, under the action of the spring And the oblique protrusion of the retainer 10 slips under the pin 9 and the warp will sink under the hook of the latch 10 in front of its outward protrusion. The upward movement of the pin 9 is stopped. Moving bracket 1 is left in the middle position. The button release process ends.

When the button is pressed again (off), the movable bracket 1 moves down again to its extreme lower position. At the same time, the switching bar 7, with its protrusions through intermediate nrulsins 16, again switches the microswitches 13, leaving the microswitch 14 still in the locked (locked) position (Fig. 26). AT

This time, the latch pin 9 moves down along its guide slot in the housing 6, exit the hook and release the latch 10. The latch is moved by the action of the spring 11 until it touches the screw limiter 12 and stops. The pin 9 reaches the horizontal edge under the hook of the latch 10 (behind the oblique protrusion), rests against it and comes under the bent

outwardly by the protrusion of the latch 10. The movement of the pin 9, and with it the whole movable bracket 1 down, stops. After the operator's finger is released, the movable bracket 1 under the action of the return spring 5 begins to move upwards. In this case, pin 9 slides with its end surface along a bent pair of protrusion of lock 10 from its inner side, squeezes the top of the lock from the Cornus and comes out of focusing with it, the income along the guide slot in the body b goes to its extreme upper floor; The latch 10 under the action of the spring 5 is again applied to the housing 6. At the same time, the switching bar

7 also goes to the extreme upper position, returning all microswitches to their initial state (Fig. 2a).

Thus, at the first and the second button, its movable bracket, and with it the latch pin and the switching bar, perform translational up and down twice, moving for the first time first to the lowest position, then to the middle one, and when pressing again, first to the lowermost and then to the uppermost position, at the same time producing the commutated microswitches and twice the arresting microswitches. By changing the combination of protrusions on the switching plate, it is possible to obtain various combinations of switching of the microswitches during the operation of the button.

Subject invention

A pushbutton switch with an alarm, containing a non-movable housing with a signal lamp mounted on it, a movable bracket, a switching strap with protrusions, a translucent material cap, a locking mechanism and microswitches with spaced prulsins, differing in that, for the purpose of measuring dimensions, microswitches are arranged along both side of the switching strap, and the protrusions on the switching strap are made in accordance with a given program.

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