Fixing structure of separate leaf spring

Patent metadata

Field	Value
Publication number	US-9711885-B2
Application number	US-201214005470-A
Country	US
Kind code	B2
Filing date	Jun 22, 2012
Priority date	Jun 24, 2011
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A fitting cylinder section 11 of a female terminal main body 10 includes a first side plate 11 a from which a columnar body 15 for a rivet protrudes as one in a plurality of side wall plates forming a square cylinder shape, a leaf spring 20 fixed to the fitting cylinder section 11 has a rivet insertion hole 21 a into which the columnar body 15 for the rivet can be inserted, and the fitting cylinder section 11 has a structure in which the leaf spring 20 is fixed to an inner section thereof by performing the press-molding in the square cylinder shape section after rivet-retaining the leaf spring 20 to the first side plate 11 a in a deployment shape and before performing the press-molding in the square cylinder shape.

First claim

The invention claimed is:

1. A fixing structure of a separate leaf spring in a female type terminal fitting, the fixing structure comprising:
a female terminal main body extending in an axial direction and including a fitting cylinder section press-molded in a square cylinder shape and into which a male type terminal can be inserted, the fitting cylinder section including a plurality of side wall plates forming the female main body into the square cylinder shape; and
a leaf spring formed separately from the female terminal main body and fixed to the fitting cylinder section so that the male type terminal can be pressed by the leaf spring;
wherein the fitting cylinder section includes a first side plate of the plurality of side wall plates from which a columnar body protrusion protrudes, the columnar body being monolithically formed with the first side plate;
wherein the leaf spring includes a protrusion retaining section that has an insertion hole into which the columnar body protrusion can be inserted, and that is fixed to the first side plate by the protrusion retaining section that retains a top section of the columnar body protrusion inserted in the insertion hole;
wherein the leaf spring further includes:
a fixing plate connected to the protrusion retaining section; and
a tongue-like piece which is folded from a tip edge of the fixing plate to extend towards the protrusion retaining section in the axial direction,
wherein the fixing plate and the protrusion retaining section are in surface-contact with the first side plate of the fitting cylinder,
wherein the leaf spring includes at least two fixing pieces which each protrude from sides of the fixing plate, and each protrude toward a respective one of a second side plate and a third side plate of the fitting cylinder section, each of the second side plate and the third side plate of the plurality of side wall plates being bent and molded at a side edge of the first side plate in a standing state,
wherein each of the second side plate and the third side plate of the fitting cylinder section includes a spring fixing hole into which a fixing piece of the at least two fixing pieces is fitted into,
wherein each fixing piece is shaped as a flat plate, and extends in a plane which is a same plane as an extending plane in which both of the protrusion retaining section and the fixing plate extend; and
wherein the tip edge of the fixing plate from which the tongue-like piece is folded and an edge of the fixing plate to which the protrusion retaining section is connected are disposed opposite each other in the axial direction.

2. The fixing structure of the separate leaf spring according to claim 1 , wherein an extending plane of the at least two fixing pieces is parallel with an extending plane of the first side plate of the fitting cylinder section.

3. The fixing structure of the separate leaf spring according to claim 2 , wherein both end portions of each of the fixing pieces in an insertion direction of a male type terminal abut against a respective spring fixing hole so that movements of the fixing pieces in the insertion direction of the male type terminal are restricted.

4. The fixing structure of the separate leaf spring according to claim 1 , wherein an extending plane of the at least two fixing pieces is perpendicular to an insertion direction where the columnar body protrusion inserts into the insertion hole.

5. The fixing structure of the separate leaf spring according to claim 1 , wherein
the first side plate is formed continuously with the second side plate of the fitting cylinder section and formed discontinuously with the third side plate, and
the second side plate and the third side plate are formed continuously with respective opposite sides of the fourth side plate of the plurality of side wall plates.

6. The fixing structure of the separate leaf spring according to claim 1 , wherein the insertion hole is not located underneath the tongue-like piece.

7. The fixing structure of the separate leaf spring according to claim 1 , wherein the tongue-like piece extends toward the protrusion retaining section in the axial direction but not beyond the protrusion retaining section.

Assignees

• Hamai Tsuyoshi
• Hasegawa Takuya
• Yazaki Corp

Inventors

• Hamai Tsuyoshi
• Hasegawa Takuya

Classifications

• H01R9/20

  Fastening by means of rivet or eyelet · CPC title

• H01R13/187 Primary

  with spring member in the socket · CPC title