US1753620A - Electric switch - Google Patents

Description

April 8, 1930. H. E. NoRvlEl., 1,753,620

ELECTRIC SWITCH Filed Jan. 28, 1928 45 the main frame plate Vof the switch. This which secure them by providing the conduc- 55.

Patented Apr. 8, 1930 l 1353,@20

UNIIEDSTATES PATENT OFFICE YHARRY n. NORvIRI.,y OFKANDERSON, INDIANA, AssIGNoR TODELCo-REMY CORPO- Y RATION, OF DAYTON, OHIO, A CORPORATION or DELAWARE ELECTRIC sWIICII Y H y Application filed January 2s, 1928. serial No. 250,103. f

This invention relates to electrical switches also attached to the plate. c Thebushing 24 for automobiles and particularly to switches provides a bearing for a shaft 25 integral Y which are adapted to be mounted upon an with the hub of an operating lever or handle instrument panel and to be operated by a 26. The handle 26 is formed preferably by 5 lever located in front of the panel andcona die casting operationin which the die cast- 55 trolling switch contacts located in the rear ing mold is provided with an insert in the of the panel. f form of a rod 27 having a knurled portion The present invention has been developed 23 about vwhich the material of the hub ofthe with the aim of simplifying the construction lever 26 contracts on cooling.y Therefore for Y and reducing the cost of manufacture of practical purposes the rod 27 may be con-` 60 switches of this type. This aim isVv accomsidered as aneXtensi-onof the shaft portion plished by a construction including a vplate 25ct the lever. y The rod 27 supports a cylin# formed from sheet metal yand provided with drlcal block 30 of non-conducting material lin a bearing for a shaft extending through the which is. embedded, by a molding operation,v plate and connected at one end with an oper@ a `metallic insert 3l shown 'in perspective in @5 ating handle and at theother with an insu F 1g. 6. The Insert 3l includes Cylindrical lating contact carrier carrying a movable flanges 32 and a web 33 joining the flanges. bridging contact which cooperates with re- The block 30 provided with. a central apersilient spring blades insulatingly supported turefor receiving "the rod 27 which is pros` upon theside of the plate remote fromthe vided with a threaded end 34 which co- 70 handle; l l Y operates with a nut 35 to clamp the block Further objects and advantages of the 30 between the nut andthe end 36 of the hub present invention will be apparent froml the of the lever 26. The blockfv30 is drivingly following description, reference being had connected `with the lever 26 by providing the to the accompanying drawings wherein a rod 27 withav flat 37 engaged bya flat sur- .75. preferred embodiment of, one form of the face provided by the wall portion 38 of the present invention is clearly shown. central recess within the block 30 which is in the drawings: provided fory receiving the rod 27 as shown Fig. 1- is a front view of a switch ,embodyin 3. Therefore the bridging Contact ing the present invention. v l member v-3l will berotated .by turning the El Fig. 2 is a side view. a handle 26. Y I u Fic'. 3 is a rear view. I Upon the back of the main frame plate 20 Fig. 4 isa sectional view taken on the line there ismounted aV unitary sub-*assembly 4 4 of Fig. l. structure which includes the stationary con- Fig. 5 is a sectional view on the line 5-5 tacts of the switch and a device for yieldingly $5 of F ig. 3. maintaining the bridging 'elen1ent.3l.Y in `Fig.'6 is a perspective view of a metallic either its on or its olf position.- Thissubinsert which is supported by a rotatable nonassembly structure includes a non-conducting conducting` body or switch contactl carrier. plate 40 which is secured by rivets 41 to a 40 Fig. 7 is aview taken approximately on the circular boss 42 providedby the plate 20. S plane of the line 7-7 of Fig. V5. Rivets 43 secure the l plate 40 to the-ends of Fig. 8 isa sectional View onthe line 8 8 leafspring vconductors. 44 and angle-shaped of Fig. 4. terminal brackets 45. y'The conductors 44 are Referring to the drawings, 2O designates prevented. from'turningabout the rivets 43 plate is formed preferably from iiat sheet tors 44 each with atang 46 which is received metal. The plate 20 is provided wit-h an by a notchg47 in the plate .40. One of theV Opening 2l for receiving oneend of a tube rivets 43 also secures a detent spring '48 22 which is attached to the plate and an Openlocated between .the block 40 and one ofthe ing at 23 for receiving a tubular bushing 24 `conductors 44 as shown in Fig. 5. The free i9( end of the spring 48 is ring-shaped to permit the end of the spring 48 to surround the block 30 and thereby prevent the turningyof the spring relative to the block 40 and also to permit the use of a relatively long spring within a limited space.V The ring-shaped end portion of the spring 48 is provided with a projection 49 adapted to be received by any of the notches ,50 vprovided by the blocli 30. lNhe'n the handle 26 'isfturne`d, the' spring 48 will yield and 'when anyof tl'ie' notches "50 is located in alignment with the projection 49, the projection will cooperate with the notch in order that the Contact 'member 3l may be yielding-ly maintained. It is apparent that the handleQG-inay beturned in either direction fromv vertical 'edl position to ver/ti al on position. 26' inle'itherdirection is limited by providing the handlewith a stop pin 5v5 which is receit'ed by .an arcuate notch -56`in the bushing A bezel ring is provided' with a flange G1 interfitting with a `flange '62 of the plate 20.Y The bezel ring 60Vincludes a bead '63 which bears against fa sub-assembly structure including 'a glass dial -cover 64 'attached by a ti'ibularirivetoto 'adifal 66, the glass covei` 64 and .the'dial'GG vhaving aligned -openings for receiving respectively, the tubular rivet andbu'shihg 24. In order t`o exclude dirt and moisture from the space between the dial 66 and the cover '64, the dial'is provided with a bead '67 fori-'engaging the glass 64 'near its edge and with annular beads 68 and 69 for engaging the glass near thehol'es provided therein. -A paper gasket 70 is locatedbe tween the plate y2O andthe dial 66. The langetfil-of'the bezel ring 60 is provided with ta'n'gs'fl which fare bent aroundthe Han-ge '62 of -tlieplate 20 in order to secure the bezel r-in'g 60, glass *cover 64, dial plate 66 and gasket 70 to ythe main 'frame plat-e 20.

The tube 22 supports a rod v80 having an operating handle S1 and connected with a. Bowden wire 82 adapted to slide through a Bowden wi're tube 83 attached to the tube 22.

While the form of embodiment of the present invention as herein disclosed, constitutes a preferred for-in, it is to be understood vthat other' forms might Vbe adopted, all coming withinfthe scope of the claims which follow.

What isfclainied is as follows:

l.V A11-'electric switch comprising, in combination, a Ymain supporting plate carrying a bearing, an operating shaft journaled in the bearing land havingv fa handle located on one side of ythe plate, a nonconducting 'contact "carrier supported other side ofthe plate, va bridging conductor carried by thejcarrier Iand having contact elements extending along the sides of the carrier, and Va subiassembly structure attached to the lpla-te andcomprisinga non-conduct-ing pla'teV carrying terminals connected Rotation of the handle signature. by the shaft on the Y with leaf spring conductors engageable with the contact elements of the bridging conductor.

2. An electric switch according to claim l in which the contact carrier is yieldingly maintained in ydifferent positions by 'a leaf spring yattached at one end to the non-conducting plate of the sub-assembly and bearling against an end of the contact carrier, said leaf spring and carrier 'having cooperating projections and recess provisions.

3. An electric switch comprising, in combination, a mainsupporting plate carrying a bearing, Van operati-ng shaft journaled in the bearing and having a handle located on one iside ofthe plate, anon-'conducting contact carrier supported by the shaft onY the other side-'of the plate, a bridging conductor carried bythe carrier an-'d having contactelements extending .along 'the sides lof the car- .I

rier, and a subassembly structure carried by the said plate and providing terminals connected with `leaf spring Aconductors engageable with the contact elements'of the bridging conductor. Y

4. An electric switch comprising, in combination, a vmain supporting plate carrying a be'aring,= V'n operating shaft journaled in the bearing and having afhandle located on one side ofV theplate, ka non-conducting contact carrier supported lby the shaft on the other side ofthe plate, a bridging conductor earried bythe 'carrier and having contact elements extending along thesides ofthe carrienand asub-asse'mbly structure carried by i the said plate and providing a leaf spring oarried by 'said sub-assembly `and bearing against `anien'd ofthecontact carrier, said leaf spring and Ycarrier having cooperating lproj ections and recess provisions.

5. An electric switch comprising, in combination, a imain 'supporting plate carrying a bearing, an operating shaft journaled inthe bearing and havinga `handle located on one ros side of the plate, a non'cond'u'cting contact L carrier supported by the Ashaft on the other side of the plate, a bridging conductor Ycarriedv by the 'carrier'and having contact elements extending along the sides of the carrier, a pair of leaf lspring:conductors rinsulatingly supported by said plate and engageable with the Y bridging contact, a ljeaf'spring securedto the sald plate and bearing against an end of the contact carrier, said leaf spring and carrier having cooperating projections :and recess provisions.

In ltestimony whereof I Vhereto afi'x my i HARRY n. NoRvinL.

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