DE19737907B4 - keyswitch - Google Patents

Abstract

The device has a number of push-button switches (10), each having an operating wiper (3) which is snap-fitted to a common base (8) via integral locking hooks (24) provided on its underside, together with operating cams (30) for a pair of micro switches (13), each wiper held in its neutral position by the resetting force of the micro switches acting on the operating cams.

Description

The The invention relates to a key switch assembly having a or a plurality of electric key switches, each having a rocker switch exhibit.

keyswitch, the rocker movement of the rocker switch about a horizontal axis as well as those that a seesaw movement to allow for a vertical axis are used in particular as input devices for installation bus systems used.

The The invention relates in particular to probe arrangements in which the rocker switches are movable about a vertical axis.

In DE-Gbm 93 05 822.5 such a probe arrangement is shown, at the four rockers transverse to the longitudinal direction of the installation device are arranged. Such an arrangement is preferably used if the individual rockers to be labeled.

The known arrangement has relatively small rocker arms which are surrounded by a frame. Under the rockers are arranged a plurality of spring elements, which is a provision of the rocker in their cause neutral position.

Of the Invention is based on the object, a key switch assembly specify with at least one key switch, the rocker switch easy is to be mounted, and are avoided in the separate return springs.

These The object is achieved by a key switch arrangement with the in the claim 1 specified characteristics solved.

to Avoidance of separate return springs is the restoring force used by two microswitches for rocker return. The microswitches can be individually actuated They are pressed on one side of the rocker or both at the same time be operated by pressing on the rocker center. The microswitch function, z. B. Venetian blind up or down movement or motor stop, can by a Software for evaluating the switch operation are set.

The rockers are easy to install by placing them on a pedestal and snapping them in place. It is particularly advantageous that the rockers can be executed over a large area and overhang the pedestal can. It is not the rocker switch surrounding frame available.

According to one advantageous embodiment can the rocker switches be provided with a lit title block and with a status indicator. Another embodiment relates to a remote control the Tastschalteranordnung by means of a receiver for infrared light signals, the an infrared translucent Cover of the base can be arranged. In addition, a push-button switch be arranged for switching the rocker lighting.

Further Details and advantages of the Tastschalteranordnung arise from the following description of an embodiment with reference to Drawings.

It demonstrate:

1 an overall view of the key switch assembly,

2 a section through a push-button of the Tastschalteranordnung and

3 the underside of a rocker switch of a pushbutton.

1 shows a key switch assembly 26 with three push-buttons 10 , To form the key switch 10 are on a common pedestal 8th as a carrier three rockers 3 arranged. One not by the seesaws 3 Covered extension of the socket 8th is through an infrared translucent cover 27 covered. In the area of this cover 27 is an operating button 20 arranged to operate a microswitch, with the lighting devices for illuminating text fields 11 on the rocker switches 3 are switchable.

Under the cover 27 a receiver for infrared light signals can be arranged, whereby a remote control of the probe arrangement is made possible.

In an incision or shaft 21 the seesaw 3 is each a light guide wedge 2 insertable and by means of a transparent cover 1 coverable. Between the cover 1 and the fiber optic wedge 2 is a writable transparent insert 12 inserted. This arrangement forms the illuminable title block 11 , The cover 1 is by means of locking elements 17 . 18 suspendable and latchable. It can be designed with a magnifying glass effect. The fiber optic wedge 2 can coatings 22 . 23 wear for light reflection.

With reference number 19 is a status display indicates, with a switching state can be displayed.

2 shows more details on the design of the push-button 10 including the Einrich to the lettering field illumination and status display.

The rocker switch 3 is easy by snapping on the pedestal 8th mountable. These serve latching hooks 24 on the seesaw 3 as well as locking means 25 at the base 8th as counterparts. These funds 24 . 25 limit the rocker movement or determine the rest position. To a push-button 10 each include two, also referred to as a micro-switch microswitch 13 with which switching commands are negotiable and those by pressing the rocker 3 via molded there actuating cam 30 are operable. The microswitches 13 inherent restoring force is used to return the rocker switch 3 in their neutral position. As a result, separate spring means are avoided.

The seesaws 3 are executed over a large area. In a practical keypad arrangement 26 have the seesaws 3 an actuating surface of about 90 × 25 mm. Nevertheless, the rocker switches can be pressed at any point without tilting. This is achieved by means of parallel guidance, consisting of 2 combined with 3 can be seen.

3 shows the bottom of a rocker 3 , This has four molded locking hooks 24 each with two adjacent guide webs 31 on. With the guide bars 31 becomes the seesaw 3 in guide shafts of the base 8th led, which are not visible in the drawing figures.

Out 3 it can be seen that on the underside of the rocker switch 3 Reinforcing and spacing agents 32 available. In addition, the light guide shaft 21 , a receiving opening 33 for a light guide element 6 the status display 19 and the actuation cams 30 for the actuation of the microswitch 13 shown. A wall of the shaft 21 acts as an opaque partition 7 opposite the status display 19 ,

Out 2 Further details on the text box illumination and the status display can be seen. On the circuit board 9 is a first light emitting diode LED 4 arranged over a light entrance surface 14 at the thick end 15 of the fiber optic wedge 2 Feeding light at a light exit surface 16 distributed over the title block.

The status indicator 19 is through a light guide element 6 formed in the one on the circuit board 9 arranged second light emitting diode LED 5 Feed light.

The light guides 2 . 6 are from the LEDs 4 . 5 each arranged slightly spaced, whereby a rocker movement is possible.

By means of pins 28 and a multiple plug 29 is the button arrangement 26 attachable to a standard device with bus coupling.

1

transparent cover

2

Light guide wedge

3

rocker switch

4

first light emitting diode LED

5

second LED

6

light guide

7

divider or partition

8th

base

9

circuit board

10

Push switch

11

Title Block

12

inscribable transparent insert

13

microswitch

14

Light entry surface

15

thick wedge end

16

Light-emitting surface

17

first Locking element of the cover

18

second Locking element of the cover

19

status display

20

actuating button a microswitch or button

21

Light guide shaft or incision in the rocker

22

first coating

23

second coating

24

latch hook or latching means of the rocker

25

latching means at the base

26

keyswitch

27

infrared translucent cover

28

spigot

29

Multiple plug

30

actuating cam

31

guide web

32

gain and slings

33

Receiving opening for the light guide element

Claims (7)

Tactile switch arrangement ( 26 ) with one or more pushbuttons ( 10 ), each having a rocker switch ( 3 ), and with one preferably for all key switches ( 10 ) common socket ( 8th ), in which each key switch ( 10 ) two microswitches ( 13 ) on a printed circuit board ( 9 ), wherein the actuating rockers ( 3 ) by means of respectively molded on its underside latch hooks ( 24 ) on the base ( 8th ) and latched by means of the latching hooks ( 24 ) and guide webs ( 31 ) in the base ( 8th ), also on the underside of the rocker ( 3 ) molded actuating cam ( 30 ) the microswitches ( 13 ) and the rockers ( 3 ) via the actuating cams ( 30 ) by the restoring force of the microswitch ( 13 ) are kept in their neutral rest position. Tastschalteranordnung according to claim 1, characterized in that each actuating rocker ( 3 ) by four locking hooks ( 24 ) on the rocker ( 3 ) and corresponding counterparts ( 25 ) on the base ( 8th ) is held. Tastschalteranordnung according to any one of the preceding claims, characterized in that in addition to each latching hook ( 24 ) on the rockers ( 3 ) two guide bars ( 31 ) are formed, with which the rockers ( 3 ) in the base ( 8th ) are guided. Tastschalteranordnung according to any one of the preceding claims, characterized in that in addition to the key switches ( 10 ) a cover ( 27 ) of the socket ( 8th ), which is made of an infrared-transparent material, and under the base ( 8th ) an infrared light sensor is arranged, via which the key switch arrangement ( 26 ) is remotely controllable. Tastschalteranordnung according to claim 4, characterized in that in the region of the cover ( 27 ) an actuating button ( 20 ) for an additional, on the circuit board ( 9 ) is arranged, with the particular a lighting device on the Tastschalteranordnung ( 26 ) is switchable. Tactile switch arrangement according to one of the preceding claims, characterized in that the push-button switches ( 10 ) each a title block ( 11 ) which can be illuminated by means of a first LED ( 4 ), the light in a fiber optic wedge ( 2 ) via a light entry surface ( 14 ), which via a light exit surface ( 16 ) of the fiber optic wedge ( 2 ) and a writable transparent insert ( 12 ) backlit through a transparent cover ( 1 ) is covered. Tactile switch arrangement according to one of the preceding claims, characterized in that on the actuating rocker ( 3 ) each one status display ( 19 ) formed by the end of a fiber optic rod ( 6 ), in which by means of a second LED ( 5 ) Light can be fed.