DE3022380A1 - ELECTRIC PUSH BUTTON SWITCH - Google Patents

Description

HOEGER, STELLFiECHT & PARTNER

PATENTANWÄLTE UHLANDSTRASSE 14 c ■ D 7OOO STUTTGART 1 ^ '(Πΐ Q 2 3 S

A 44 217 b Applicant: A.B. Electronic Components

k - 176 Limited

June 12, 1980 Abercynon

Mid-Glamorgan, CF45 4SF Wales / England

Electric push button switch

The invention relates to an electrical push button switch with a spring preload Slide which can be locked in a switched-on position and in a switched-off position by means of a pawl is, which cooperates with a cam track, which of the pawl in successive Pressing a push button of the slide is run through and provided at the locking positions for the pawl are.

Pushbutton switches that can be locked in their switch positions that have to be pressed to turn on and turn off are often referred to as Mains switch or used as the main switch of another power supply, especially in private devices consumer electronics. It is now already known to have remote controls for channel switching that To provide volume control and various other functions, there is a need for one Switch which can also be operated via a remote control and which is suitable for a television set or Shut off the like and disconnect it from the mains or the supply voltage source.

-4-03006Γ2 / -Ό7Α4

A 44 217 b

k - 176 - 4 -

June 12, 1980

The invention is based on the prior art, the underlying task of specifying a remotely controllable pushbutton switch, with the help of which a mains connection or the like can be interrupted.

This object is achieved with an electrical push button switch of the type described in the opening paragraph according to the invention solved in that deflection devices are provided are, with the help of which the pawl from one of the locking positions opposite the curved path to Release of the slide is deflectable.

It is advantageous if the deflection devices are designed such that the pawl can be deflected from the position in which it the switch locked in the on position.

It is advantageous if the deflection devices by means of a solenoid can be actuated, the excitation current of which is obtained from the supply voltage source which is switched by the pushbutton switch itself, with the actuation of the deflecting devices is done by remote control.

It is also favorable if the deflection devices are resiliently biased into a rest position.

Further details and advantages of the invention are provided explained in more detail below with reference to drawings

-5-

030062AG744

A 44 217 b

k - 176 - 5 -

June 12, 1980

and / or are the subject of subclaims. It demonstrate:

Figure 1 is a side view of a preferred embodiment of a push button switch according to the invention, with some parts broken away and other parts shown in the further figures are omitted, are shown with dash-dotted lines;

FIG. 2 shows a plan view of the switch according to FIG. 1;

3 shows a bottom view of the switch according to FIGS. 1 and 2;

4 shows a front view of the switch according to FIGS. 1 to 3 and

Fig. 5 is an enlarged plan view to explain the pawl and cam in a switch according to the invention.

In detail, the switch according to FIGS. 1 to 4 has a switch housing 1 which accommodates a slide 2 is used, which is under the outward bias of a spring 3 and by a one-piece molded push button 4 is actuated, the outward

030062 / Ό7Α4

A 44 217 b

k - 176 - 6 -

June 12, 1980

protrudes over the housing 1. In addition, FIG. 1 _{f shows} that an upper cast housing part 5 with fixed contacts 6 is provided, which is covered by a housing cover 7. The last-mentioned components are only indicated in dash-dotted lines and are omitted in the other figures, since they are essentially designed in the usual way and are not the subject of the invention. It is therefore considered sufficient that the pairs of fixed contacts 6 on both sides of the upper housing part 5 are bridged by contacts on the slide 2 when the latter is in the switched-on position. If, on the other hand, the slide 2 is in the switched-off position, the fixed contacts 6 are not bridged. According to the function of the switch, it is possible to bridge different sets of contacts in the two different switch positions; however, this is not the case if the switch is a power switch for a private electrical device, such as a television receiver.

On the carriage 2, a curved path 8 is provided in the usual way, which to interact with a The pawl 9 is determined from a piece of steel wire, which is pivotable with its end 10 on the switch housing 1 is articulated and has a downwardly directed end which slide along the curved path 8 can. The curved path 8 is shown enlarged and in detail in FIG. 5, this being based on the illustration according to FIG. 1 - downwardly bent end of the

-7-

Q30062 / O7U

A AA 217 b

k - 176 - 7 -

June 12, 1980

Locking pawl 9 is shown in different positions, denoted by different reference numerals are. In detail, the curved path 8 runs between an outer edge curve 11 and the edge of a island 12 enclosed by it. During normal operation of the switch, the pawl 9 is located or its angled end in the off position of the switch in a position 13. A first press on the push button 4 leads to the fact that the pawl end in the direction of the arrows in a first locking position 14 is moved. When the push button 4 is then released, so that the spring 3 the carriage 2 can push back outwards, the pawl end reaches a latching position 15 on the island 12. This position of the pawl 9 is shown in FIG. The next time push button 4 is pressed, it moves the end of the pawl loosens itself into a third detent position. If the pushbutton is then released, so that the carriage 2 can be moved back to its extreme position by the spring 3, then the pawl end, Following the arrows drawn in FIG. 5, return to the rest position 13. on this becomes an essentially customary form of a switch which can be latched in its switching positions realized.

To get a remote control from position 15 to position 13 using the feed power available in the switched-on device

-8th-

030062/0744

A 44 217 b

k - 176 - 8 -

June 12, 1980

An edge region 17 is provided on the island 12, which is essentially transverse to the axial direction of movement of the Slide 2 extends so that the pawl end, starting from position 15, normally not the Has a tendency to run over this edge region 17. The pawl end, however, can move into a position over the edge region 17 without undue effort 18 slide, from where a slight further movement to> ■ a release of the island 12 and thus the slide 2, which is now pushed back by the spring 3 to the outside with the pawl end returning to position 13.

To achieve this movement of the pawl end from position 15 to position 18 is in the switch housing 1 a soft iron frame 19 is attached, which carries an excitation winding 20 with a core, one of which The end 21 protrudes beyond the winding 20. The excitation current is fed to the winding 20 via connections 22, de-. Ren supply is controlled via a relay or other switching device, which is controlled in a suitable manner by a remote control is controllable. The excitation winding 20 is assigned an armature 23 in the form of a soft iron plate, which has a first tongue 24 which engages in a slot in the frame 19. A steel spring 25 serves as a return spring for the armature 23 and presses it into the position shown specifically in FIG Distance from the core end 21.

-9-

030062 / Ό744

A 44 217 b

k - 176 - 9 -

June 12, 1980

The armature 23 also has a second tongue 26 which fits into a slot at one end 27 of a lever 28 engages, which is pivotable about a pivot axis 29 on the switch housing 1 and has a second arm 30, which lies above the slide 2 in the area of the pawl 9.

When the excitation winding 20 is excited, the armature 23 is pulled against the core end 21 to the magnetic To close circle, whereby the lever 28 - is pivoted counterclockwise in Fig. 2, so that his Arm 30 detects the pawl 9 and its angled end from position 15 to position 18 according to FIG. 5 moves so that the slide 2 is released, whereupon the spring 3 moves the switch to the off position brings.

From the above description of an exemplary embodiment it is clear that the person skilled in the art has numerous possibilities are available for changes and / or additions without thereby affecting the basic idea of the invention would have to leave. In particular, there are for the design of the pawl arrangement in numerous possibilities in practice.

030062/0744

Claims (6)

HOEGER, STELLREChT & PARTNER PATENTANWÄLTE UHLANDSTRASSE 14 c · D 7OOO STUTTGART 1 q> fh *> ^ O Q Λ A 44 217 b Applicant: A.B. Electronic Components k - 176 Limited June 12, 1980 Abercynon Mid-Glamorgan, CF45 4SP Wales / England Claims Electric pushbutton switch with a spring-loaded slide that is inserted in a switched-on position and can be locked in a switched-off position by means of a pawl is, which cooperates with a cam track, which of the pawl in successive Actuations of a push button of the slide is run through and at the locking positions for the Pawl are provided, thereby characterized in that deflection devices (19 to 30) are provided, with the help of which the pawl (9) from one of the locking positions (15) relative to the cam track (8) to release., The slide (2) can be deflected. 2. Push button switch according to claim 1, characterized in that the pawl (9) with the aid of the deflecting devices (19 to 30) can be deflected from a latching position (15) which is the switched-on position of the switch is assigned. -2- 030062/0744 L INSPECTED A 44 217 b k - 176 - 2 - June 12, 1980 3. Push button switch according to claim 1 or 2, characterized characterized in that the deflection devices (19 to 30) by means of an electromagnet (20, 21) are operable. 4. Push button switch according to claim 2 and 3, characterized in that the electromagnet (20, 21) from a supply voltage source switched by the switch itself can be fed. 5. Push button switch according to one of claims 1 to 4, characterized in that the deflection devices (19 to 30) are resiliently biased into a rest position. 6. Push button switch according to one of claims 1 to 5, characterized in that the deflection devices (19 to 30) have a pivotable arm (28), with the help of which the pawl (9) laterally can be moved out of its one detent position (15). 030062 / Ό744