DE7103811U - Rotatable actuator for slide switches - Google Patents

Description

February 2, 13/1

Patent attorney _ h

Dip! - Ing. Leo Fleuchaus MI6 <kr / G-485 / 4es ^y

8 Munich 71, Meichiorstr. 42

Motorola, Iac. 94-01 West Grand Avenue Franklin Park , Illinois V.St .Ac

Rotatable actuator for slide switches

The invention relates to a switch actuating device, the turning movement of a selector knob into a linear movement to operate a slide switch converts.

It is often desirable to provide a selection button on electronic or electrical devices in order to choose between two or more operating states of the device. Such buttons is often associated with a slide switch which is disposed behind the housing wall with the dial knob or a part thereof. The switch extends through the wall to permit rotary actuation. You

some

HI64-P / G-485 4-69166

In some cases the Hang1 in place closes the application such a flap switch, unless the switch is completely redesigned. Incidentally, for some Purposes of such plate switches are unsuitable.

Although the switch actuator according to the invention can be used wherever the rotary movement of a Uählknopfes is to be converted into a linear movement to a slide switch or the like press, an AM-FH radio receiver, which should be installed in a car or the like, represents a preferred area of application of the invention. Such radio receivers are usually designed to be very space-saving, so that they require a minimum amount of space within the dashboard compartment of the car and must be equipped with space-saving components for their operation.

It is an object of the invention to provide a switch actuating device to control the rotary movement a Uählknopfes to convert into a linear movement of a slide switch, which is space-saving and easy to operate. A selector switch according to the invention is intended

in particular

ΚΙ64Ρ / & - Λ85 4-69166

be particularly applicable in an AK-FK radio receiver housing, so that the owner can switch the receiver to the AM or FK mode of operation.

According to the invention, this object is achieved in that the actuating shaft of the rotary knob is assigned a crank which has a predetermined circular movement extends around the axis of the shaft when the shaft rotates that a switch is arranged next to the shaft, the one Has actuating lug, which for actuating the switch is linear between a first and a second Can move position that a member is pivotable about an axis · perpendicular to the axis of rotation of the Shaft lies, the member having a receiving part for the crank and another receiving part for the base of the Has switch, and that a movement of the crank as a result of a rotary movement of the shaft is a linear movement the actuating nose brings about

A 3 special advantageous implementation of the invention has an arm which is arranged radially with respect to the shaft ac, while the crank is connected to the arm

is and extends behind the arm to be with a part of the limb to come into engagement, and with a Yorspr-

Is »the one with a resilient member in Intervention comes to the veil in one or the end

(! ■ is based on a preferred heritage of the invention Arrangement of a leaf spring equipped with an Ehlck on, the one with a protrusion on the arm of the tlahlknopfvelle comes into engagement to the Vahlkmopf in one or the other lock its firing positions. ? orsugsMei-

ae know the resistance caused by the protrusion easily overcome by pressing the finger on the tShümopf Turn the Snopf su and switch the receiver to AH or FH mode su.

Further manufacture and advantages of the invention can be found in US Pat following description of an AnsiSutenags example in Connection with the claims and the invoice. Ss seigent

Fig. 1 is a perspective view of an AH-FK car

MI64-P / G-485 4-69166

receivers, the switch actuating device according to the invention is arranged in the housing;

Fig. 2 is a partial plan view of the receiver according to Fig. 1, wherein a portion of the top wall is shown broken away around that housed in the device To show switch actuator;

Fig. 3 is a partially broken away plan view approximately in accordance with Fig. 2, but showing the switch drive mechanism in the other selected position;

Fig. 4- a vertical section along the cutting line IV-IV of FIG. 1, showing details of the switch actuating device according to the invention; and

5 shows a vertical section approximately in accordance with FIG. 4, in which However parts are shown broken away to the leaf spring and the engagement of the switch actuator to show igungseinrichtung according to the invention with the projection.

MxC

MI64P / S-485 4-69166

With reference to Fig. 1 fee, ΊΟ draws a. AM-FM radio receiver for installation in a car or in another motor vehicle. The radio receiver 10 comprises a housing 12 with a front wall 12a through which a plurality of buttons 14, 15, 16, 17 and 18 extend and allow the device to be quickly set to one of the previously tuned transmitters. In addition, a main switch, a volume button 20 extend through the front wall 12a and possibly a sound screen 21, which can be turned independently of the volume button in order to adjust the sound quality of the audio frequency signals reproduced by the receiver 10. By means of a hand-operated transmitter selection button 23 * "*"" you can set transmitters with the Ha_ia for which no buttons are provided.

According to the invention, the AM or FM mode of operation of the receiver 10 can be set by hand by an AM-FM dial button 24. A suitable one appears Display of the selected operating mode on the radio receiver scale. It should be understood, however, that the display the operating mode can be present at another point on the radio receiver 10 and not necessarily on must appear on the scale.

4-69166 YES

It is possible to fade part of the AM-FJS display in order to show the owner of the radio the band or the operating mode of the device. It is also possible to provide a pointer that points to the desired display, &. n. on an ASf or fM grade on the scale ..

Figs. 2, 5 and 4 show a partially broken off Part of the recipient »10 with the erfinäoagsgeaäSec. Switch actuation equipment ;. Its tube 25a extends through a hollow mile 24a, which is so arranged is that it is through the Yorderwandong 12a of the Exactly » Ses 12 extends therethrough for rotational movement. The «skins 25a carries the manually operated transmitter selection button 25 according to FIG 5'ig- 1 while the velle 24a presses the band or mode selection button 24 according to FIG. 1 carries.

The switch actuating means geatäß aar 1st invention, indicated as a whole by the Bezugszeicnen 50th It comprises an arm 51 which is formed at the rear of the leg 24a and which extends radially with respect to this solid. Sine Siirbel 52 is attached to arm 51 and moves back and forth over a predetermined circular distance between hand positions according to the urehwinkel <iBT wave

24a

24 «. which is less than 360 °. The surfed? 32

Rope 35 of a pivot 1 i.edes 36 a. Brieses Sctaeeek member 56 is arranged for example by a mete eä & r äetxsleld ^ ea Wf '<finmiiτ on a support member 3Ö Itei 4 €. Bts Söweak member 36 sciaienkt vm. Aine Äcitse »die sie & dssrdb oes. Sctoieakpankt 4O or the steady extends xad at right angles χα. the third axis <i ^ wave 2 ^ «(? ig. *) stands.

A switch 42 is on a support which is arranged behind the pivoting member 36 and is located next to the arm 3 of the crank 52. Sin sliding actuating member 46 öes switch engages an opening 37 of a further upwardly bent 48 of the pivot member 56. Therefore, a guag of the Vell-s 24a between their positions, which are deadly at a vinyl distance τοα less than 36 °, leads to an external movement of the limb 36 xm. the axis 40 i »r 5 he te whether the Sciiiebebetätigxiuttgseinrichtiaag 46 linearly between its Sadstellungen .. Begen to 2L. B. shows? Ig. 2 the sliding actuated a ^ seinrichtoag 46 in its left Sndstelluog, the z. B. the AiS type of operation speaks, while. 3 the right »^ wheel position dax Sehie—

HI64.P / G-485

4-69166 '

Bebetätigucgseinrichtung 36 shows the operating mode of the FK Be is equivalent to. The actuating device according to the invention therefore converts a rotary movement of the shaft 24- on an arc of a circle in a linear movement of the slide actuator 46 in a predetermined distance sufficient to switch the switch 4-2 between sen to switch completely to stable switching states. However, it is to be understood that more than two positions one Slide switch can be achieved by the drive device according to the invention.

A plurality of terminal lugs 30, 51, 52 are provided at the rear of the switch body 42 for connecting old suitable circuit lines in order to enable the switching process between the AK and FK operating modes of the receiver 10 au. Other An.s ch irt & fä ^ ch * "" can be arranged behind Turn rkörper 42, "with the total number of

»Tft corresponds to the need for switching connections of the ΑΚΡΗ device 10.

According to a preferred method of the invention is one Leaf spring 54 arranged on the front wall 12a in a suitable manner. Preferably the spring extends after

above

KI64F / G-485 / ILL 4-69166

above In the direction of the JLrm 31 · ice leaf spring 5 ^ is preferably attached to a ceramic part 33, which also forms a Srijam capacitor within the housing 12. This probe sensor is tri-rated as usual in order to ensure proper operation of the radio. The leaf spring 45 has a rearwardly bent part 54a which forms a resilient lug 54b. The projection 58 slides over the base 54b and locks the arm 31 together as the each 24a in its end positions of the arc-shaped movement ban · FIG. 4 shows the projection 58 on the upper cable of the base 54b. When the shaft 54 rotates, the projection slides over the base 54b onto its lower part (FIG. 5). Ärretiervorrichtung piping ensures that a sufficient holder pressure is exerted on the inner Schiebebetätigungseinricntung 46 of the switch 42, inadvertent actuation of the switch vm avoid shown below. However, this holder pressure can easily be overcome by turning the shaft 24 by hand.

Accordingly, the switch drive device according to the invention represents an arrangement which is inexpensive and

10 easy

4--69166

easily converts the "rotary movement of a ^t * elle into a linear movement to use a slide switch or the like

To summarize ^ the invention provides a switch actuation device which is arranged within a housing, UK the rotary movement of a Vfäalknopfes in a "linear movement - for actuating a switch housed within the housing usauwandeliu oil shaft" which carries the Böaopf outside the housing, has a crank on, which extends to the rear behind the wall of the housing to stit a SehMenkglied, which pivots un a perpendicular axis to the üorehmehse aar shaft stenead axis, in singriff su iwwamen. The swivel link is loosely coupled to the crank at one end, while the other Sode is coupled to the switch using a sliding actuation device "among other things, the actuation units are linearly" wiped between their "ei selector positions"

Claims

Claims (2)

4-69166 —Iltn s prii ehe Λ. Switch operating device which, for actuating a slide switch, encircles the rotary movement of a selector button in a linear movement, characterized in that the actuating shaft of the rotary button (32) is assigned a crank which executes a predetermined circular movement over the axis of the shaft when the VeHe rotates that next to the shaft a switch (42) is arranged which has an actuating lug which can be moved linearly between a first and a second position for actuating the switch, that a member (36) is arranged pivotably about an eight 3, the at right angles to the axis of rotation of the shaft, the member (36) having a receiving part (35) for the crank and a further receiving part (48) for the rabbit (46) of the switch (42), and that a movement • ·· • · 4-69166 supply of the crank (52) due to a rotary motion of the shaft (46) herbeifuhrt a linear movement of the Betatigungwna fm. 2. ^ switch actuation device according to claim 1, characterized in that an arm (31) is arranged radially with respect to the shaft (24a), while the crank (32) is connected to the arm and extends behind the arm (31) to engage a rope (55) of the link (36) and a projection (55) is provided on the arm (31) which with a resilient member in Kingriff comes to the To lock the shaft in one or the other of its positions.