DE1588546A1 - Electric push-button switch with a cross slide - Google Patents

Description

Electric push button switch with a cross slide

The invention relates to electrical switches and, more particularly, to electrical switches for aircraft as described in the United States patent 3,287,523 are described.

The invention is based on a switch * in which a movable contact carrier is opposite a hand-operated shaft is arranged displaceably and carries a transverse slide, which can interact with a locking element mounted in the housing, and an overcurrent biro-metal is provided, which interacts with the cross slide and, in the event of an overcurrent, moves the cross slide transversely to the contact carrier and releases it from the locking element, as well as actuation of the manually operated shaft either in the contact carrier moves the closed contact position or releases the cross slide from the locking element so that the contact carrier can move into the open contact position. The invention is characterized in that the bimetal is firmly supported in the housing at one end and is pressed against a stop at the other freely displaceable end,

909839/0875

and that the transverse slide is released from the locking position in a middle position of the bimetal, the freely movable bimetal end being displaceable against the bias of a spring in order to prevent the contact carrier from opening. Bi further advantageous embodiment of the friction is to reduce disposed on the Qudrschieber a Hollenbach, with the hand-operated shaft "UBanunemrirkt.

Further advantages and characteristics of the invention result refer to the following description »in the based on of the enclosed rewards s-ln embodiment of the invention is explained. Bs show:

Fig. 1 is a partially sectioned rare view of one © ring-shaped switch from which the de-icing plate was removed,

FIG. 2 shows a section along the line 2-2 of FIG. 1,

FIG. 5 shows a section along lines 3-5 of FIG. 1.

Fig. 4 is a view similar to Fig. Ι with the switch in tripping position due to response of the overcurrent bimetal or a magnetic shutdown, in the on position of the switch.

909839/0875

Fig. 5 one of the Flg. 4 similar view, with the electrical Switch is opened by actuation by hand.

As best from Flg. 1 seen "is an electrical switch IO consists of a housing 12 having secured thereto two" outward ferry Kleasnen ends 14 and 16. For the guidance of an operating knob 20 extends a threaded sleeve 18 of AEMS housing la neon outside. The threaded bushing 18 serves together with a cutter 22 to attach the switch 10 to a dashboard (not shown).

A shaft 30 is fastened to the actuating button 20, for example by means of a rivet 32. The shaft 30 runs in the Putty of the switch 10, and its upper end portion 3 * extends into the corresponding slot 6 in the housing 12 «A spring 40 normally presses the operating button 20 outwards or downwards, like from Pig. I can be seen.

A movable contact carrier 50 has a “one” central slot 52 provided »in ctea the shaft 30 dec message button 20 glel ·» tend to be absorbed. As can be seen from Fig. 2, is on the Contact carrier 50 attached a resilient contact arm 54, the the movable contact piece 56 carries. The movable contact piece 56 can lay on the festa contact piece 58, so that the switch 10 is closed.

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Λη ein®m Ind © 62, the Kofcfcakfcanues 54 and at a Ana 68 dee fiteh & usfls 12 is a coil spring fixed 60 such that d®r EontekfctrSger _s gedrüokt 50 normalerweiaef opposite atm Oehäuse IS down wi © in Fig. 2 gaaeigt iet.

Bar liönfcafctfci-äger 50 has a sideways running sole 70 _{s of} the · einfcjü Qiiv-Vi'SöhiQber · 72 aufiielii3 <sii kö.nri. Older Quärsclaieber 72 is: "jnfcwr dar t-ltrkiing © ines Obe ^ strati-Biaet & lle 7 ^ i * tfl" r · haib dös KoiifcakttS'Sg ^ rs fiO. Wi «a» i best rstehtlieh from Fig * 3 © is dm-üfoax'strcaj-BiE & taXl laifc © ineen Endabsohn ^ tt 76 dt? S connected QusrsGhiafccire 12 mn di "lateral displacement d" ß QuiersohiGbera EW control. Dor geg "nübarli" g © hands Sndabschnitt 78 a 's 8ohleboi * 3 72 s5.feat normalextralee on · 1η <κο Vei * ri © gelungs-30 BIIf: _P SSAE to ®i' em sua bimetal 82 Ausslöich the Uawx ' 4 © rärt bsfeisfcigt let ₈ that it is controlled by this "bimetal

The Ub®rBtro ^ "Bim« 5tcXl 74 aifest on a Bn.de 84 in a jn ent * apx »$ ah« nden sit »86 in atm öehäuee Χδ and is opposite em föidö 88 by a spring 90 g "If you press a contact 92"

On ^ inlicihe Wöisa slfcssfc d «s

with an individual 94 in a "ntspraciiendeti sitg 96 of,

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Housing 12, while the position of the opposite end 98 is determined by a calibration screw 100. The shaft. 30 dca actuation button a 20 is provided with a notch 102 which. has an angled squat part 104 which can cooperate with a cross slide <* 1C6. The "roll" 10β is, for example, held by a bolt in a corresponding slot 108 in the transverse slide 32 (FIG. 3} · The sleeve 106 reduces the friction between the shaft 30 of the button 20 and the slide 72. The shaft 30 of the button 20 is bit connected to the contact carrier 50 by a bolt 110 which is attached to the contact carrier 50 and in a corresponding one Slot 112 is received in the shaft 30.

it is best to use the FIGS. 1,4 and 5 can be seen, the Switch 10 with a magnetic display device Il8 which consists of an iron core 120 and a sink 122 consists. The iron core 120 is attached to the housing 12.

Bite magnetic poles of the core 120 are arranged close to the current sensing bimetal 74, so that the time awisoh®n the occurrence of an error and the response άβ & electric switch 10 v <srräiag © rfc is. The coil 122 can be connected in series or in parallel with the bimetal 4 or, if necessary, can be omitted. Similarly, the coil 122 can serve as a heating device to reduce the thermal response time of the bimetal 74.

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BATH ORIGINAL

Because the switch is closed from the open positions shown in FIG Switching state in the closed * in FIGS. 1 and 2 is the switching state shown by an upward Pressing the battery button 20 causes “until the Transverse breaker roller 106 moved into the notch 102 of the shaft 30 " whereby the end 78 of the slide 72 can snap into place over the locking element 80.

In the event of an overload, the upper section metal 74 bends to the left as shown in FIG. 1 and displaces the slide 72 to the left, whereby its end section 78 disengages from the locking mechanism 80. When the slide 72 is released from the locking mechanism 80, the contact carrier 50 can move freely downwards under the pretension of the spring 60 against the housing IS and the shaft 30 of the actuating button 20, for the same tent can the operating button 20 \ mt @? of the EtiiifluS i & r spring 40 move freely downwards. It should gestattotj it Siii ^? 3vjiesen ₉ that the Bim © tell 74 runs parallel to the shaft 30 WTA dis fadar 90 a Bssefcgiaig of the lower bath 88 of BimetaXla 74 nmoh left {Wl & * 4), whereby the risk einsa Ve ^ kle3iK "ns between asm Quersghieber 72 and the Bim@ta.il 74 oö © r dsm shaft 3Θ is largely switched off »

BAD ORIGINAL 9 09 839/0875, - ^

As shown in FIG. 5, the switch 10 is opened by hand and the actuation button 20 is pulled down, whereby the cam surface 104 is pressed down and the RoXXe 106 and dtr cross slide 72 can be moved to the left. The spring 40 alone is not strong enough to trigger this effect and to move the Quersohietoer 72 to the left.

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Claims (2)

Claims [Iy Electrical scarf t r _ä wherein sin movable contact carrier against a handbefcätigten shaft Move "bar eats arranged and © inen QuerseMeber deceptive, may raenwirken with, © SJi (SRi in Göiiäus" angsfeFaohfceia Vsrrlegelungeolejaent zusan- *, and a Überstrcsn-Eiüsetall provided is, uüß aiit the Qusrßühieber works together with overcurrent the cross slide pushes forward and v <m d <si8 ¥ "2 * riagel"? either the contact ·· shifts into the öhlessaen «? KoKtafe'claga or that of fisai V <6» i? iagslimgS9leB®nt so that / der ate. * thereby ge ° that the bine-tall tTk) a «» iiifea end (84} is firmly in &% · & Ci & liäixsö C12} & bg3sttits & imu ais enteren freely movable end (88 ^ is pressed against an anchor (92) "and that the cross-section (72) is dissolved in öiner intermediate position of the bimetallic strip from ά »ι Verriegolungslsge, BATH ORIGINAL Contact carrier / move into the open contact position 909839/0875 wherein the freely displaceable bimetal end (88) against the Bias of a spring (90) is displaceable in order to facilitate the opening movement of the contact carrier (50). 2.Electric switch according to claim 1, characterized in that the reduction of the Beibung on the cross slide (72) © ine Holle (1C6) is attached because © with the hand-operated shaft 909839/0875