Title:
DAMPER
Document Type and Number:
Japanese Patent JP2948715
Kind Code:
B2
Abstract:
PURPOSE: To provide a small, inexpensive damper.
CONSTITUTION: A damper has a base 1 with a through hole 1a, sheets 2, 3 covering both end portions of the through hole la to form a first 2a and second 3a chamber on both sides of the base 1, respectively, and a fluid 4 hermetically sealed so that when one of the chambers is pressed it can move into the other chamber via the through hole 1a, the first and second chambers 2a, 3a being so formed that their cross sections do not get smaller toward the base 1. Therefore, when a movable member presses one of the chambers, the speed and force at which the moving member makes collision are reduced by resistance caused by movement of the fluid 4 into the other chamber via the through hole 1a of the base 1, and therefore the sound of the collision can be reduced, and since the fluid 4 is hermetically sealed by means of the sheets 2, 3, the structure is simple and the outer dimension is reduced, and since the chambers are so formed that their cross sections do not get smaller toward the base 1, the sheets 2, 3 can be drawn into a dome shape and easily be formed into the chambers.
Inventors:
SHIBATA KIWAMU
KAWAMOTO TETSUYASU
KAWAMOTO TETSUYASU
Application Number:
JP10527393A
Publication Date:
September 13, 1999
Filing Date:
May 06, 1993
Export Citation:
Assignee:
MATSUSHITA DENKO KK
International Classes:
F16F15/04; F16F9/14; F16F13/04; H01H3/60; H01H50/30; (IPC1-7): H01H3/60; F16F9/14; H01H50/30
Domestic Patent References:
| JP6435230A | ||||
| JP4889361A | ||||
| JP475226A | ||||
| JP61270532A | ||||
| JP5652640A | ||||
| JP59108839U |
Attorney, Agent or Firm:
Junji Ando (1 person outside)