# US 9,520,656 B2 · Round terminal fixation structure

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- Number: US 9,520,656 B2
- Document ID: US9520656B2
- Status: Granted
- Kind: B2
- Application number: 14/267,108
- Filed: 2014-05-01
- Published: 2014-11-13
- Granted: 2016-12-13
- Earliest claimed: 2013-05-09
- Assignees: Yazaki Corporation
- Applicants: Yazaki Corporation
- Inventors: Takaaki Kakimi; Hiroaki Yamada
- Web page: https://patentgrep.com/patent/US9520656B2

## CPC

- H01R 4/30: utilising a screw or nut clamping member (H01R4/50 takes precedence; utilising a clamping member acted on by screw or nut H01R4/38; {for coaxial cables H01R9/0521})
- H01R 4/305: {having means for facilitating engagement of conductive member or for holding it in position}
- H01R 4/34: Conductive members located under head of screw
- H01R 4/185: {combined with a U-shaped insulation-receiving portion}
- H01R 11/12: End pieces terminating in an eye, hook, or fork
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

A round terminal fixation structure is a structure for fixing a round terminal connected to an end of an electric wire to a bus bar in an overlapping manner with a bolt. The round terminal includes: a bolt insertion portion with a first through-hole into which the bolt is inserted; a core wire crimp portion for crimping a core wire of the electric wire; and an insulating cover crimp portion. The bus bar includes: a flat plate portion with a second through-hole; a pair of standing pieces vertically extended from the flat plate portion for positioning the core wire crimp portion in between the pair of standing pieces while the first and second through-holes are overlapped with each other; and connection portions electrically connected to the relay or the fuse. A gap between the pair of standing pieces is formed smaller than a width of the bolt insertion portion.

## Claims

### Claim 1

A round terminal fixation structure comprising:
a round terminal connected to an end of an electric wire; and
a bus bar to which the round terminal is configured to be fixed in an overlapping manner with a bolt,
wherein the round terminal includes: a bolt insertion portion provided with a first through-hole through which the bolt is inserted; and a core wire crimp portion crimping a core wire of the electric wire,
wherein the bus bar includes: a flat plate portion provided with a second through-hole through which the bolt is inserted; and a pair of standing pieces vertically extending from the flat plate portion, and configured to position the core wire crimp portion in between the pair of standing pieces while the first and second through-holes are overlapped with each other,
wherein a gap between the pair of standing pieces is formed smaller than a width of the bolt insertion portion,
wherein the pair of standing pieces are each formed into a quadrangular shape defined by four sides, said four sides including a first side and a second side opposite to the first side, the first side being adjacent to and parallel to the flat plate portion, and
wherein the second side of one of the pair of standing pieces is entirely slanted toward the flat plate portion and at a distance from the second through-hole, and the second side of the other of the pair of standing pieces is entirely parallel to the flat plate portion and formed lower than a closest portion of the slanted second side of the one of the pair of standing pieces relative to the flat plate portion, the closest portion being closest to the flat plate portion.

### Claim 2 (depends on 1)

The round terminal fixation structure as claimed in claim 1,
wherein the second side of the other of the pair of standing pieces is at a distance from the second through-hole.

### Claim 3 (depends on 1)

The round terminal fixation structure as claimed in claim 1, wherein the second side of each of the standing pieces is entirely offset from the flat plate portion.