发明名称 |
HOLLOW EXTRUSION MOLDING PRODUCT AND FORMING METHOD OF GAS VENTILATION HOLE |
摘要 |
PROBLEM TO BE SOLVED: To provide a gas ventilating method for making an appearance of a gas ventilation hole of a weather strip good, and setting the hole making portion and direction freely. SOLUTION: Gas ventilation holes 13a and 13b of a weather strip 1 are formed to even a soft-conditioned molding product 1 immediately after extrusion under a non-contact condition by laser heating, without causing deformation and with a good appearance. By varying a laser radiation focus point, the gas ventilation hole 13b is formed in a manner to penetrate through a dividing wall 9 of plural hollow parts 5a and 7a, and the gas pressure of the hollow parts 5a and 7a is balanced for maintaining a good product shape. |
申请公布号 |
JP2000135581(A) |
申请公布日期 |
2000.05.16 |
申请号 |
JP19980308229 |
申请日期 |
1998.10.29 |
申请人 |
TOYO TIRE & RUBBER CO LTD |
发明人 |
MATSUMOTO YOSHIHARU;KAWAI KAZUO |
分类号 |
B60J10/08;B23K26/00;B23K26/38;B29C47/08;B29L22/00;B29L31/30;B60J5/08 |
主分类号 |
B60J10/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|