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EP0450211A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Contact shutter device in ic socket

Assignee: Yamaichi Electronics Co Ltd
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Filing: 1990-04-03
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Granted: —
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Expires: 2010-04-03
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Abstract

Abstract In an IC socket including a socket body (1) having a plurality of contacts (4) which are arranged in such a manner as to contact terminal members (3) of an IC package (2), and a contact shutter member (12) vertically movably mounted on the socket body(1) and adapted, when lowering, to push the contacts(4)against elastic property thereof so that the contacts would be displaced backward and downward to cancel the contact relation, a contact shutter device (12) in the IC socket (4) being characterized in that each of the contacts(4) has a contact piece portion extending upward from a fixedly embedded portion (7) thereof through a curved spring piece (6), a cantilever arm (10) extending backward from the contact piece portion, the cantilever arm being provided with a pressing force receiving portion (8) formed on a free end portion thereof and pushed down by the contact shutter member (12), a push-start point of the pressing force receiving portion (11) by the contact shutter device being set to a position which is higher than a contact point of the contact piece portion with respect to the terminal members.

Inventors

  • 👤 Noriyuki Matsuoka
  • 👤 Junji Ishida

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 18:41
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1007

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 174 words
In an IC socket including a socket body having a plurality of contacts which are arranged in such a manner as to contact terminal members of an IC package, and a contact shutter member vertically movably mounted on said socket body and adapted, when lowering, to push said contacts against elastic property thereof so that said contacts would be displaced backward and downward to cancel said contact relation, a contact shutter device in said IC socket being characterized in that each of said contacts has a contact piece portion extending upward from a fixedly embedded portion through a curved spring piece, a cantilever arm extending backward from said contact piece portion, said cantilever arm being provided with a pressing force receiving portion formed on a free end portion thereof and pushed down by said contact shutter member, a push-start point of said pressing force receiving portion by said contact shutter device being set to a position which is higher than a contact point of said contact piece portion with respect to said terminal members.
Claim 2
Dependent Claim 39 words
A contact shutter device in an IC socket as claimed in claim 1, wherein a push-point of said pressing force receiving portion formed on the free end portion of said cantilever arm is located backward of said curved spring.

References Cited (Backward Citations)

US4691975A Cited
US4691975B1 Cited
EP0295046A1 Cited
US4886470A Cited

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