Title:
DOUBLE TYPE SHOCK ABSORBER
Document Type and Number:
Japanese Patent JP3406524
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make the absorption action of large energy generated when a large shock force acts compatible with the absorption action of small energy generated when a small shock force acts.
SOLUTION: This double type shock absorber has a cylinder member 2 which is provided in a frame body connected with a vehicle on one side and forms a cylinder part 2e, piston bars 5a, 5b which are slidably arranged by passing through the cylinder member 2 and in which a piston 6 positioned in the cylinder part 2e forms a restriction flow passage (a) communicating both sides thereof, accompanying plates 11a, 11b which are arranged on both sides of the cylinder member 2 and are locked in accompanying plate holders 30, 31 of a vehicle on the other side, elastic bodies 10a, 10b which are sandwiched and provided between both side faces of the cylinder member 2 and each accompanying plate 11a, 11b and initial compression is given to, and a fluid which is stored in the cylinder part 2e, has flow resistance, and flows in the restriction flow passage (a). A clearance L is formed between a tip part on at least one side of the piston bars 5a, 5b and the accompanying plates 11a, 11b, the clearance L disappears after the elastic bodies 10a, 10b receive a predetermined amount of compression, and-tip parts of the piston bars 5a, 5b come into contact with the accompanying plates 11a, 11b.
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Inventors:
Teruyuki Hazama
Michio Uenishi
Kiyoshi Ohno
Michio Uenishi
Kiyoshi Ohno
Application Number:
JP31543898A
Publication Date:
May 12, 2003
Filing Date:
October 19, 1998
Export Citation:
Assignee:
East Japan Railway Company
Japan Steel Works, Ltd.
Japan Steel Works, Ltd.
International Classes:
B61G11/12; F16F9/50; (IPC1-7): B61G11/12; F16F9/50
Domestic Patent References:
| JP5150118A | ||||
| JP5357415U | ||||
| JP6013720Y1 | ||||
| JP5029769Y1 |
Attorney, Agent or Firm:
Hiroyuki Maeda