Patent number: 6772481

Hinge assembly

Original Assignee: Sugatsune Kogyo Co., Ltd.

Field of technology: Industrial Machinery and Processes

Patent granted on: Tue, 10 Aug 2004

Patent drawing

Abstract

A hinge assembly (1) used for a foldable cellular telephone, comprising a pair of abutment members (5, 6), a bias means (7) biasing the abutment members so that the abutment members are pressingly brought into contact with each other, a projection (54) extending in the radial direction of one abutment member (5), and a recess (64) allowing the access of the projection thereto formed in the other abutment member (6), wherein the recess (64) is formed of an inside recess and an outside recess on the radial inner and outer sides of the other abutment member, and the inside recess is formed along the center line of the other abutment member and the outside recess is formed so that the width thereof is increased from the inside recess to the outside so that the side surface of the recess is generally formed in a dogleg-like configuration.