Title:
共回り防止具
Document Type and Number:
Japanese Patent JP7278598
Kind Code:
B2
Abstract:
[Problem] To provide a co-rotation preventing device which has a simplified structure and which can be handled easily. [Solution] This co-rotation preventing device (A1) has: a first fitting section (2) into which a bolt head can be fitted; a second fitting section (3) which communicates with the first fitting section (2) in a z-direction and into which a section to be fastened is fitted; and an insertion groove (4) which communicates with the second fitting section (3) in the z-direction and into which a bolt shaft can be inserted. Each of the first fitting section (2), the second fitting section (3), and the insertion groove (4) extends in an x-direction perpendicular to (intersecting) the z-direction, and is open to an end section in the x-direction. The insertion groove (4) has a slit-like shape having an open end (41) at an end section in the z-direction.
Inventors:
Shoichi Sugita
Application Number:
JP2019566481A
Publication Date:
May 22, 2023
Filing Date:
January 16, 2019
Export Citation:
Assignee:
Nissho Astec Co., Ltd.
International Classes:
B25B13/00; F16B39/10; F16L23/08
Domestic Patent References:
| JP2006315167A | ||||
| JP3176124U | ||||
| JP52037399U | ||||
| JP2003191171A | ||||
| JP62201670U | ||||
| JP53077257U |
Foreign References:
| US20020194966 | ||||
| US5954466 |
Attorney, Agent or Firm:
Hisashi Usui
Minoru Yoshida
Tatsuya Tanaka
Yasumitsu Suzuki
Shintaro Suzuki
Keita Kobuchi
Tomokazu Saito
Minoru Yoshida
Tatsuya Tanaka
Yasumitsu Suzuki
Shintaro Suzuki
Keita Kobuchi
Tomokazu Saito