Title:
ねじ山形成具及びその使用法
Document Type and Number:
Japanese Patent JP4187921
Kind Code:
B2
Abstract:
The screw has widened flat spots (10) in the outer pressure surfaces of the starting region (6). These act in a radial direction relative to the apex angles. Rounded edges (11) are formed running in the circumferential direction of the thread starts (4). The width of the flat spots from one thread start to another may be constant.
Inventors:
Helmut Grimpel
Dietmar Myer
Dietmar Liebow
Liner flitch
Dietmar Myer
Dietmar Liebow
Liner flitch
Application Number:
JP2000368431A
Publication Date:
November 26, 2008
Filing Date:
December 04, 2000
Export Citation:
Assignee:
Emugue-Werck Rihrig Grimpel Gesellschaft Mitt Beschlenktel Haftung Und Company Comandito Gesellschaft Freak Fleure Pleisiones Vuerkutsio
International Classes:
F16B33/02; B21D53/24; B21H3/08; B21J13/02; B21K1/56; B23G5/06; B23G7/02
Domestic Patent References:
| JP63044721U |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard