EP0469845A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Lock pin and electrical connector using the same

Assignee: DDK Ltd

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Filing: 1991-07-30

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Granted: —

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Expires: 2011-07-30

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Abstract

Abstract A lock pin (4,5) includes an arm to be inserted into a mounting aperture of a mounting plate and fixed to a metal portion around the mounting aperture by soldering, and an anchoring projection (3d) formed at an end of said arm. The arm is provided with a melted solder induction protrusion (7,8a,8b) for guiding melted solder to distribute it extensively on the metal portion. An electrical connector includes a connector main body (1), a front shell (2) surrounding the connector main body, and the lock pin to be secured to the connector main body and having an anchoring projection (3d), an arm (3c) electrically connected to the front shell and the melted solder induction protrusion (7,8a,8b). When a melted solder is positioned between the surface of the mounting plate and the induction protrusion, the induction protrusion is "wetted" with the melted solder. Therefore, the melted solder flows with the aid of its surface tension along surfaces of the induction protrusion to arrive at the arm of the lock pin and further flows along the arm of the lock pin to the back surface of the mounting plate with ease, whereby the mounting plate and the lock pin are fixed with great certainty.

Inventors

👤 Akio Yamada
👤 Kanzaburo Uchida

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-11-03 14:00

CPC Classifications

H; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/55; H01R12/58; H01R12/70; H01R12/71; H01R12/712; H01R12/716; H01R12/72; H01R12/722; H01R12/724; H01R13/00; H01R13/648; H01R13/658; H01R13/6591; H01R13/6594; H01R13/6595; H01R4/00; H01R4/02

Claims Analysis

Total Claims: 7

Claim 1

Independent Claim 63 words

A lock pin including an arm to be inserted into a mounting aperture of a mounting plate and fixed to a metal portion around said mounting aperture by soldering, and an anchoring projection formed at an end of said arm, wherein said arm is provided with a melted solder induction protrusion for guiding melted solder to distribute it extensively on said metal portion.

Claim 2

Dependent Claim 49 words

A lock pin as set forth in claim 1, wherein said mounting plate is a printed circuit board, said metal portion around said mounting aperture is a wiring pattern of said printed circuit board, and said mounting aperture is for mounting an electrical element on said printed circuit board.

Claim 3

Dependent Claim 86 words

A lock pin as set forth in claim 2, wherein said melted solder induction protrusion is located on said arm so that said melted solder induction protrusion is brought into contact with the surface of said printed circuit board when said lock pin is mounted in said printed circuit board as said mounting plate, and said melted solder induction protrusion has a length which extends beyond the outer diameter of said mounting aperture of said printed circuit board over the outer circumference of the mounting aperture.

Claim 4

Dependent Claim 39 words

A lock pin as set forth in claim 3, wherein said electrical element is any one selected from a relay, a switch, an electrical connector, an optical fiber connector, a light reception or emission module and a terminal block.

Claim 5

Dependent Claim 41 words

A lock pin as set forth in claim 3, wherein said electrical element is an assembly of those selected from a relay, a switch, an electrical connector, an optical fiber connector, a light reception or emission module and a terminal block.

Claim 6

Dependent Claim 88 words

A lock pin as set forth in claim 2, wherein said melted solder induction protrusion is located on said arm so that said melted solder induction protrusion is brought into contact with the surface of said printed circuit board when said lock pin is mounted in said printed circuit board as said mounting plate, and said melted solder induction protrusion has a length which extends beyond the outer diameter of a connector mounting aperture of said printed circuit board over the outer circumference of the connector mounting aperture.

Claim 7

Dependent Claim 71 words

An electrical connector including a connector main body, a front shell surrounding said connector main body, and a lock pin to be secured to said connector main body and having an anchoring projection and an arm electrically connected to said front shell, wherein said arm of the lock pin is provided with a melted solder induction protrusion for guiding melted solder to distribute it extensively on a portion to be soldered.

References Cited (Backward Citations)

GB1053032A Cited

US3500538A Cited

GB2029127A Cited

US4353609A Cited

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