Tokyo Shibaura Denki Kabushiki Kaisha

Akiyoshi Hashima

Masaharu Baba

Kiyokazu Honda

Yoshiji Yoshiike

A baseless incandescent lamp assembly comprises a baseless incandescent lamp including a flattened seal section and a pair of external lead wires, a main socket body including a lamp holding chamber to contain the flattened seal section of said baseless incandescent lamp, and a pair of conductive holding members provided in the lamp holding chamber of the main socket body and holding the flattened seal section. Said external lead wires are held and electrically connected to the conductive holding members by being pressed between the conductive holding members and the inner surfaces of the lamp holding chamber.

Baseless incandescent lamp assembly

A method for manufacturing a baseless incandescent lamp assembly comprises a step for molding a conductive plate material into a continuous holding member chain including a number of facing pairs of holding members on both sides of a belt-like coupling section, a holding step for causing a flattened seal section of a baseless incandescent lamp to be held between the paired holding members, a step for cutting off the paired holding members from the coupling section while keeping the flattened seal section of the baseless incandescent lamp between the holding members, and a step for inserting the holding members holding the flattened seal section of the baseless incandescent lamp therebetween into a lamp holding chamber of a main socket body, thereby fixing the holding members to said main socket body.

Method for manufacturing a baseless incandescent lamp assembly

A method for manufacturing a baseless incandescent lamp assembly comprises a step for holding a flattened seal section of a baseless incandescent lamp between a pair of holding members, a step for inserting the holding members into a lamp holding chamber of a main socket body while keeping the flattened seal action of the baseless incandescent lamp between the holding members, and a step for softening part of said main socket body by heating to deform the same, thereby forming caulked portions to prevent the inserted holding members from slipping out of the lamp holding chamber.

A socket for electrically and mechanically connecting a baseless lamp comprises a cylindrical main body having a peripheral wall and, a bottom wall to receive said one end of said lamp, engaging segments and an insulating engaging flange protruding from the outer periphery of the peripheral wall of the main body and capable of holding a printed wiring board therebetween, a groove and slot assembly for leading out lead wires of the lamp with one end inserted in the main body from the main body through said bottom wall and fixedly holding part of said lead wires on a surface of said engaging flange which faces said engaging segments.

Growing community of inventors

Yokohama, Japan

Akiyoshi Hashima