发明名称 |
Dust cover for shock absorber and method of manufacturing the same |
摘要 |
A dust cover includes a bellows-like portion which is comprised of a large-pitched portion and a small-pitched portion in succession, each having a plurality of alternating ridges and grooves of uniform diameter. The ridges and grooves of the large-pitched portion are spaced at an equal but large pitch while the ridges and grooves of the small-pitched portion are spaced at an equal but smaller pitch. The ridges of the small-pitched portion have a thickness smaller than that of the ridges of the large-pitched portion. When a force is applied to the dust cover in a direction of contraction, the dust cover first contracts at the small-pitched portion and then at the large-pitched portion, whereby undesired buckling thereof is kept to a minimum. A method for blow molding the dust cover is also disclosed.
|
申请公布号 |
US5954168(A) |
申请公布日期 |
1999.09.21 |
申请号 |
US19970864185 |
申请日期 |
1997.05.28 |
申请人 |
AMERICAN SHOWA, INC.;TIGERS POLYMER CORP.;TIGERPOLY MFG., INC. |
发明人 |
NAKATANI, KEIICHIRO;TANAKA, NOBUHIDE |
分类号 |
F16J3/04;B29C49/04;B29C49/64;B29C49/72;B29L31/26;F16F9/38;(IPC1-7):F16F9/38 |
主分类号 |
F16J3/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|