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Patent Searching and Data


Title:
PENDULUM TYPE DAMPING DEVICE
Document Type and Number:
Japanese Patent JPH0478344
Kind Code:
A
Abstract:

PURPOSE: To reduce the occupying area of a damping device with the need for an outer frame eliminated, a mass vibrating body lightened, and a dimension lessened by arranging a spring and a damping element between the mass vibrating body hang from a structure and a rod connected to the mass vibrating body.

CONSTITUTION: When a mass vibrating body 3 is moved e.g. leftward, a rod 5 is tilted with the lower end of the rod 5 smoothly moved, according to the movement of the mass vibrating body 3, by means of joints 3a and 7a, and both of a damping element 4 and a spring 6, arranged between the intermediate apt of the rod 5 and the edge part 34t of the mass vibrating body 3, retain nearly horizontal direction positions to move in an approximately horizontal direction. At that time, since a joint 5a of the damping element 4 is provided on the intermediate part of the rod 5, the left side spherical surface seat 5a relatively becomes more distant from the left side spherical surface seat 3b, and meantime the right side spherical surface seat 5a relatively nears the right side spherical surface seat 3b. Consequently the left side damping element 4 and the spring 6 extend and the right side damping element 4 and the spring 6 contract to display damping effect.


Inventors:
HIRAI JUN
ABIRU HISATOKU
HARADA HIDEAKI
TAMURA KAZUMI
FUJISHIRO MANABU
Application Number:
JP1990000190412
Publication Date:
March 12, 1992
Filing Date:
July 20, 1990
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
E04H9/02; E04H12/00; F16F15/02; (IPC1-7): E04H9/02; E04H12/00; F16F15/02
Domestic Patent References:
JPH01111706U1989-07-27