Torque hinge

Patent metadata

Field	Value
Publication number	US-10151128-B2
Application number	US-201715792586-A
Country	US
Kind code	B2
Filing date	Oct 24, 2017
Priority date	Oct 24, 2016
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

Provided is a torque hinge which can be easily assembled. A torque hinge includes a restricting member 3 having a hole 31, a shaft 4 passed through the hole 31 of the restricting member 3, a friction member 6 engaged with the shaft 4 in an interference fitting state so as to generate torque due to friction to the shaft 4 which relatively rotates and fitted in the hole 31 of the restricting member 6, and a fixing shaft 41 for unrotatably fixing the friction member 6 to the restricting member 3, the fixing shaft 41 intervening between the friction member 6 and the restricting member 3. The fixing shaft 41 presses a wedge-shaped rotation locking portion 44 of the friction member 6 onto an inner surface of the hole 31 of the restricting member 3.

First claim

What is claimed is:

1. A torque hinge, comprising:
a restricting member having a hole;
a shaft passed through the hole of the restricting member;
a friction member engaged with the shaft in an interference fitting state so as to generate torque due to friction to the shaft which relatively rotates and fitted in the hole of the restricting member, and
a fixing shaft for unrotatably fixing the friction member to the restricting member, said fixing shaft, which is an independent part from each of the friction member and the shaft, is intervening between the friction member and the restricting member;
wherein an inner surface of the hole of the restricting member has a pair of inclined inner surfaces inclined with respect to each other, and
wherein the fixing shaft presses the friction member onto the pair of inclined inner surfaces of the restricting member.

2. The torque hinge claimed in claim 1 , wherein the friction member has a surrounding portion defining a shaft opening portion through which the shaft is passed and a wedge-shaped rotation locking portion integrally formed with the surrounding portion, and
wherein the fixing shaft presses the wedge-shaped rotation locking portion onto the pair of inclined inner surfaces of the restricting member, and
wherein the fixing shaft is arranged between a bottom surface leading to the pair of inclined inner surfaces of the restricting member and the rotation locking portion of the friction member.

3. A torque hinge, comprising:
a restricting member having a hole;
a shaft passed through the hole of the restricting member;
a friction member engaged with the shaft in an interference fitting state so as to generate torque due to friction to the shaft which relatively rotates and fitted in the hole of the restricting member, and
a fixing shaft for unrotatably fixing the friction member to the restricting member, said fixing shaft, which is an independent part from each of the friction member and the shaft, is intervening between the friction member and the restricting member,
wherein the friction member is a friction plate formed by punching process, the friction member is a lamination of two or more friction plates, and forms a cutout engaged with the fixing shaft at a position shifting from an imaginary center line of the friction plate in an axial direction view.

Assignees

• Sugatsune Kogyo

Inventors

• Hatano Yuuichi

Classifications

• E05D11/1078

  the maintaining means acting parallel to the pivot · CPC title

• E05D11/084 Primary

  the friction depending on direction of rotation or opening angle of the hinge · CPC title

• Y10T16/54038

  Cross-Sectional Technologies · mapped topic

• G06F1/1616

  with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position · CPC title

• E05D5/128

  the pin having a recess or through-hole engaged by a securing member · CPC title