Title:
ROD FIXING DEVICE, AND TELESCOPIC ROD UNIT EMPLOYING SAME
Document Type and Number:
WIPO Patent Application WO/2019/131063
Kind Code:
A1
Abstract:
[Problem] To provide a rod fixing device capable of operating with substantially the same magnitude of force irrespective of whether the direction of movement of a rod is up or down, and a telescopic rod unit employing the same.
[Solution] A locking mechanism 13 which moves integrally with a first rod 11 inside a second rod 12 comprises a stopper 15 having a contacting surface portion 15c capable of coming into contact with an inner circumferential surface 12a of the second rod 12, a holder 14 which rotatably holds the stopper 15 in such a way that the contacting surface portion 15c is capable of coming into contact with the inner circumferential surface 12a of the second rod 12, and a coil spring 16 which normally imparts to the stopper 15 an elastic force for generating a fixing frictional force between the first rod 11 and the second rod 12 by causing the contacting surface portion 15c of the stopper 15 to come into contact with the inner circumferential surface 12a of the second rod 12, wherein the configuration is such that movement of the first rod 11 toward one side causes the contacting surface portion 15c to rotate toward a side separating from the inner circumferential surface 12a of the second rod 12, and movement of the first rod 11 toward the other side is a movement against the fixing frictional force.
Inventors:
AKIBA JUNICHIRO (JP)
KIMURA SHIN (JP)
KIMURA SHIN (JP)
Application Number:
PCT/JP2018/045104
Publication Date:
July 04, 2019
Filing Date:
December 07, 2018
Export Citation:
Assignee:
TOK INC (JP)
International Classes:
F16M11/28; F16B7/14
Foreign References:
| JPS521330U | 1977-01-07 | |||
| JPS5472258U | 1979-05-23 | |||
| JPS5321263U | 1978-02-22 | |||
| JP2016001010A | 2016-01-07 |
Attorney, Agent or Firm:
SHIMIZU Takamitsu (JP)
Download PDF: