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EP0791983A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Connector for flexible circuit boards

Assignee: Sumitomo Wiring Systems Ltd
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Filing: 1997-02-21
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Granted: —
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Expires: 2017-02-21
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Abstract

Abstract A connector for a printed circuit board having a housing (20) defining a hollow. There is a plurality of slits (22) in the back wall (25) and a terminal (30) is inserted in each one. The terminal (30) includes a pressure piece (32) which is capable of flexing under the influence of the introduction of a retainer (40) so that it is spaced apart from the circuit board (10). The gap therebetween is greater than the thickness of the board (10). After the retainer (40) and circuit board (10) have been fully inserted, the pressing piece (32) returns to its rest position, in which the gap is equal to or less than the thickness of the circuit board (10). This provides a good electrical contact between the pressing piece (32) and the board (10). The retainer, (40) which may be integral with the board (10), has a cavity (41b) which receives a portion of the circuit board (10). Attached thereto is a connecting member which enters the hollow and presses the terminal (30) into a flexed position separated from the board (10). In this way, the terminal (30) is out of contact with the circuit board (10) until the board (10) has been fully inserted. This not only prevents damage to the board (10) by abrasion, but also allows entry of a very flexible board (10) without any danger of crumpling, even if the assembly is carried out with one hand.

Inventors

  • 👤 Hideto Nakamura

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 13:33
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/70; H01R12/77; H01R12/771; H01R12/774; H01R12/79

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 161 words
A connector for a receiving printed circuit board (10) comprising a connector housing (20) having a front, a back wall (25), a bottom wall (24), and a upper wall (23) defining a hollow (21), and a at least one terminal (30) in said hollow, said terminal (30) including at least one pressure piece (32) capable of having a flexed position in which said terminal is spaced apart from said circuit board in a direction normal thereto, thereby forming a gap which is greater than the thickness of said circuit board, and a rest position, in which said gap is not greater than said thickness and said pressure piece is in electrical contact with said circuit board, and a retainer (40) comprising a cavity (41b) adapted to fixedly receive a portion of said circuit board, and a connecting member (46) adapted to enter said hollow and urge said terminal (30) into said flexed position before said circuit board (10) enters said gap.
Claim 2
Dependent Claim 36 words
The connector of Claim 1 wherein said housing comprises a plurality of fixing holes (34), an attachment claw (31) on each said terminal in each said fixing hole, thereby securing each said terminal to said housing.
Claim 3
Dependent Claim 31 words
The connector of Claim 1 wherein there is a projection (32a) on said pressure piece, said projection adapted to contact said circuit board when said terminal is in said rest position.
Claim 4
Dependent Claim 61 words
The connector of Claim 1 wherein said pressure piece is held by said upper wall and said attaching claw is held by said bottom wall, at least one of said upper wall and said bottom wall being moveable toward and away from each other in said direction, whereby movement away from each other urges said pressure piece into said flexed position.
Claim 5
Dependent Claim 47 words
The connector of Claim 1 wherein said retainer comprises an upper casing (42), a lower casing (41), and a hinge (43) therebetween, said upper casing and said lower casing being adapted to be folded together about said hinge into a closed position with said circuit board therebetween.
Claim 6
Dependent Claim 68 words
The connector of Claim 1 wherein one of said connecting member and said housing has an engagement rib (46a) on a surface thereof, and another of said connecting member and said housing has an engagement groove (23a) in a surface thereof, said rib and said groove being complementary to each other when said retainer is in an assembled position wherein said retainer is fully entered in said housing.
Claim 7
Dependent Claim 35 words
The connector of Claim 1 wherein said retainer has a projecting base (42b) adapted to bear against said circuit board when said circuit board is in said cavity, thereby fixing said board in said cavity.
Claim 8
Dependent Claim 77 words
The connector of Claim 1 wherein said retainer comprises a cover (45) with depending sides, said retainer including a main casing (44) adapted to receive said cover, a window (44a) in a surface of said main casing, a pressing portion (45a) on said cover and corresponding to said window whereby, when said cover is placed on said main casing, said pressing portion bears against said circuit board in said cavity and fixes it in said main casing.
Claim 9
Dependent Claim 20 words
The connector of Claim 1 wherein said housing is provided with weakened areas which facilitate movement into said flexed position.
Claim 10
Dependent Claim 60 words
The connector of Claim 1 wherein said printed circuit board has circuits on both faces, said terminal has a pair of said pressing pieces, one adapted to bear against each of said faces, said pressing pieces being separated from each other by a gap wider than said thickness of said circuit board when said retainer is inserted into said hollow.

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