Title:
LAMINATION SPRING TYPE TORQUE HINGE AND MANUFACTURING METHOD OF THE LAMINATION SPRING TYPE TORQUE HINGE
Document Type and Number:
Japanese Patent JP2022047367
Kind Code:
A
Abstract:
To provide a lamination spring type torque hinge in which a sufficient amount of a lubricant is enclosed between an inner peripheral edge of a plate spring and a connection shaft and leakage of the enclosed lubricant is prevented.SOLUTION: A lamination spring type torque hinge 2 includes: a connection shaft 4 which rotatably connects a first member with a second member; three or more plate springs 6 which are laminated and into which the connection shaft 4 is press-fitted; and a rotation prevention member 8 which prevents rotation of at least a part of the plate springs 6. Recessed parts 6a recessed to the radial outer side are formed at an inner peripheral edge of at least parts of each plate spring 6 at intervals in a circumferential direction. A space between each recessed part 6a and an outer peripheral surface of the connection shaft 4 is filled with a lubricant. The recessed parts 6a of the plate springs 6 which exclude the plate springs 6 at both axial side end parts are closed by the plate springs 6 at both axial side end parts.SELECTED DRAWING: Figure 1
Inventors:
HARAGUCHI MASANAO
Application Number:
JP2020153244A
Publication Date:
March 24, 2022
Filing Date:
September 11, 2020
Export Citation:
Assignee:
ORIGIN KK
International Classes:
F16C11/04; E05D11/08; F16C11/10; F16F1/20
Attorney, Agent or Firm:
Naozumi Ono
Takashi Iida
Okunuki Sachiko
Tsuyoshi Tsukano
Toshiyuki Kojima
Yoshifumi Kaneko
Takashi Iida
Okunuki Sachiko
Tsuyoshi Tsukano
Toshiyuki Kojima
Yoshifumi Kaneko