US2134448A - Electromagnetic relay - Google Patents

Description

Oct. 25, 1938. Y G. KNS .2,134,443

ELECTROMGNET IG RELAY Filed Aug. '7, 195'?"` lifi Patented oct 25, 193s 2,134,448'

UNITED STATES PATENT OFFICE ELECTROMAGNETIC RELAY Gunnar Brge Kns. Eindhoven, Netherlands, as-

signor to N.l V. Philips Gioeilampenfabrieken, Eindhoven, Netherlands Application August 7, 1931, Serial No. 157,996 In Germany September 11, 1936 2 Claims. (CL 20G-1) My invention relates to electromagnetic relays In accordance with the invention, each armaof the type in which spring contact members are ture'spring i is directly connected to amature 2 insulatingly arranged in a stack, and are moved and is moved from its rest position upon enerfrom their position of rest upon response of the gization of coil i. For this purpose `a member 3 5 relay. extends on the outside of the stack and is provided, 5

In such relays considerabledifiiculty arises in with cross-members li, i2 and I3 engaging the transmitting motion to these members, particlower surface of springs 6. ularly when a large number of contact membersv As shown more clearly in Fig. 2, member 3 is are to be operated by a single amature. In presformed of a single piece of metal or insulating ent constructions only one contact member is material and has a bottom portion 23 loosely ilt- 10 directly operated by the armature, and interting into a slot in armature 2, and two arm pormediate members are provided to transmit the tions 24 extending substantially perpendicular to movement from the ilrst contact member to the the longitudinal axis oi spring 6. The cross arms second, etc. Such constructions however, are Il, I2 and i3, which are of 'insulating material,

l5 rather complicated, dimcult to assemble, and ireare removably fitted between arms 24-24 and 1.5

-quently unreliable in operation because of the are provided with notches 2l which cooperate forces introduced by the shifting of the interwith the arms 24 as shown in Fis. 3. mediate members. As shown in Fig. 2, cross arm i I is inserted from The object of my invention is to eliminate the the top and rests upon protuberances I5 of arms above difficulties, and to produce a simple, cheap 2l. To allow insertion of members i2 and i3, the 20 and reliable relay. arms 24 are provided with notches I4 at a point According to the invention, I transmit the above the corresponding protuberances i5. It movement of the armature directly to each conwill be noted that member 3 can be used with less tact member. More particularly I provide bethan three armatures in which case some of the 25 tween the contact members and armature, a con- `cross members are not used. 25 necting member having cross arms extending be- While I have described my invention in contween the contact members to move the same nection with specific examples, I do not wish to from their position of rest upon actuation of the be limited thereto but desire the appended claims armature. to be construed as broadly as permissible in view In order that thel invention may be clearly unof the prior art. so

derstood and readily carried into eiiect I shall What I claim is: describe the same in more detail with reference 1. In a relay, an armature, a plurality of exto the accompanying drawing in which: ible elongated flat contact springs arranged in a Figure 1 is a side view of a relay embodying the stack, a member actuated by said amature and inventionextending on both sides and substantially per- 35 Fig. 2 is asectional view along line 2-2 o! Fig. 1 pendicularlv to the longitudinal axis of said with certain parts omitted: i springs, and flat cross arms connected to said Fig. 3 is a sectional view along line 2-3 of Fig. member and serving to move said springs from 2; l their position of rest. said cross arms extending The relay illustrated in Fig. 1 comprises a magbetween said springs with their active surfaces 40 netic core having a strip-shaped portion 20, a coil lying in planes parallel to the plane of the springs. I, and an armature 2 pivoted on the end oi por- 2. In a relay, an armature, a plurality of ilextion 20 and heid in its open positionl by a lea! ible contact springs arranged in a stack, a strip- Sprin 15- Secured t0 90111011 1l 1B 8 SUPDOrt 4 shaped member actuated by said armature and carrying a stack of contact members, Vand in-` having portions extending substantially perpen-.45 sulating members 2. The contact members commnu-1y u, 1d springs and outside the stack, prise three armature springs 8, a stationary make the edges of wd portions facing the stack being strip 1, and two break springs 2l. Springs 2| and provided with notches and protubemnces, md the two lowerarmatures 6 are supported in their wam members um by 1d pmtuberposition of rest by stationary strips 22. 'Ihe memum and coupent, with md springs the ends bers 6, 1, 2l and 22, and insulating members 2 of md Oskam members be, provided with are held together in the stack by a clip 9 secured to support i0, in the manner described in my co- 31 embmm md umm mmm Y pending U. S. Patent application ser. No. 157,995,

u* illed August '1, 1937. r GUNNAR BRGE n

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