Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Shigeru Ogihara

Hiroki Hirai

Tetsuji Tanaka

Hiroki Shimoda

Junichi Ono

Takuji Otsuka

Akira Ito

Daisuke Hashimoto

Hiroyuki Matsuoka

Kouji Fukumoto

Takuya Tate

Masamichi Yamagiwa

Toshiya Hirooka

Shigeki Shimada

Satoshi Suzuki

Jison Kimu

Akihide Kondo

Assembly parts for connector device including: substrate having through hole; press-fit terminal that is rod shape member to be press-fitted into through hole, wherein press-fit terminal includes leading end, press-fit, and base end portions, press-fit portion includes parallel portion with two parallel contact pieces separated by eye hole; and tapered portion connecting parallel and leading end portions together, in vertical cross section of press-fit terminal, eye hole with curved line constitutes leading end-side portion, lines constitute tapered portion include contact and reference points, contact points first come into contact with opening edge of through hole when press-fit terminal inserted into through hole, reference points are intersections of lines that constitute tapered portion and specific orthogonal lines, specific orthogonal lines are orthogonal lines passing through end points of curved line, of lines orthogonal to lines that constitute tapered portion, contact points are located closer to leading end portion than reference points.

Assembly parts for connector device and connector device

A female terminal () disclosed by this specification is a female terminal () with a resilient piece () to be resiliently brought into contact with a male terminal (). The resilient piece () is displaceable between an initial position where the resilient piece is located before the male terminal () contacts and a deformation position where the resilient piece () is resiliently deformed by the contact of the male terminal () therewith. A contact mark () formed on a point where a contact pressure generated between the resilient piece () located at the initial position and the male terminal () is maximized and a slide contact mark () formed by the slide contact of the male terminal () with the resilient piece () displaced to the deformation position are arranged not to overlap each other.

Female terminal with resilient piece having contact mark and a slide contact mark that do not overlap so that contact resistance with a male terminal is low

A female terminal () includes a tubular portion () configured to receive a male terminal () therein. Resilient pieces () extend in from a bottom wall () and a ceiling wall () of the tubular portion () and contact the male terminal (). Each resilient piece () includes a line-contact portion () that slides in line or surface contact with the male terminal (), a contact portion () to contact the male terminal (), and a gradually changing portion () formed from an end (B,B) of the line-contact portion () to a top (A,A) of the contact portion () and not protruding from a plane flush with a contact surface (A,A) of the line-contact portion (). Thus, a contact area with the male terminal () is reduced gradually toward the contact portion ().

Female terminal with resilient piece having a contact surface that gradually narrows to a contact point

A fitting-equipped electrically conductive sheet and a connection fitting configured to electrically connect to another member, in which both a low connection resistance and a high fixing strength are easily achieved. The connection fitting has a crimp section that is crimped to an edge section of the electrically conductive sheet material. The crimp section includes a pair of plate-shaped holding sections between which the edge section of the sheet material is sandwiched, and a folded-back section that connects them. One of the pair of plate-shaped holding sections has a band-shaped recess on an outer surface of an intermediate region between the folded-back section and the opposite edge section, the band-shaped recess being band-shaped by being more strongly crimped to the sheet material than other parts.

Fitting equipped electrically conductive sheet

Provided is a technique of ensuring mechanical strength in a terminal-provided wire and lowering contact resistance between the wire and the crimp terminal, without greatly varying a crimp height of a crimp terminal onto the wire in an axial direction. A crimp terminal according to the invention includes a conductor barrel which is crimped to a conductor of a wire. The conductor barrel has an inner surface which closely contacts the conductor by bending. The inner surface has such a shape a surface thereof which closely contacts a tip end side part of the conductor inwardly projects beyond a surface thereof which closely contacts a base side part of the conductor, thus performing a higher compression of the tip end side part of the conductor than that of the base side part thereof by the bending.

Crimp terminal, terminal-provided wire, and manufacturing method thereof

Provided is a technique of enabling high-compression crimping without breaking a crimp terminal while forming a recessed portion promoting a wire crimp portion of the crimp terminal to cut into a conductor in the wire crimp portion. The crimp terminal according to the invention includes a wire crimp portion, which is crimped to a conductor of a wire and includes a first crimp portion crimped to a base side of the conductor and a second crimp portion crimped to a tip end side. A recessed portion for promoting a cutting-in effect is formed in an inner surface of the wire crimp portion. A recessed portion formed in the second crimp portion is divided in a terminal width direction or is shallower than a recessed portion formed in the first crimp portion. Alternatively, the recessed portion is omitted and a recessed portion is formed only in the first crimp portion.

Growing community of inventors

Yokkaichi, Japan

Shigeru Ogihara