Title:
DIRECT ACTING TYPE GAS PLUG AND TURNING METHOD FOR PLUG MAIN BODY USED THEREFOR
Document Type and Number:
Japanese Patent JP3431722
Kind Code:
B2
Abstract:
PURPOSE: To prevent peeling, which is caused by a cross edge between a plug insertion hole and an installation hole, especially, by both end part edges in the axial direction, in a coating layer, grease, or the like on the outer circumferential face of a plug main body.
CONSTITUTION: In the preset range W2, an inside diameter of a plug insertion hole 11 is set to be a minimum diameter Dmin in a central part C in the axial direction L of an opening part of an installation hole 15, while the inside diameter is gradually increased as it is separated further from the center, and the inside diameter reaches a maximum diameter Dmax in each of both end parts E1, E2 of the preset range W2.
Inventors:
Isamu Yamazaki
Application Number:
JP11801295A
Publication Date:
July 28, 2003
Filing Date:
April 19, 1995
Export Citation:
Assignee:
Gwangyang Sangyo Co., Ltd.
International Classes:
B23B5/00; F16K3/24; F16K5/04; F16K5/22; (IPC1-7): F16K5/04; B23B5/00; F16K5/22
Domestic Patent References:
| JP4842322Y1 |
Attorney, Agent or Firm:
Noboru Watanabe
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