Title:
ビームクランプ
Document Type and Number:
Japanese Patent JP6979362
Kind Code:
B2
Abstract:
To prevent looseness without generating any abrasion at a fastening screw and in addition, to enable a worker to confirm it easily that a sufficient fastening force is realized.SOLUTION: A beam clamp 10 having a pair of arms 12a, 12b that can be opened or closed by rotating a fastening screw 14 is provided with a pressure nut structure 20 comprising a housing 21 fixed to one arm 12a; a pressure nut 22 fixed to an inner part of the housing to cause the fastening screw to be passed in thread and a diameter expanding base end part 22b that is continuous to said nut part; a coil spring 23 wound around an outer circumference of the nut part to depress the expanded diameter base end part; and a washer 25. A fastening confirmation line 24 arranged at the expanded diameter base end part of the pressure nut cannot be visually confirmed while being buried in the housing at the midway part of advancement of the pressure nut by the fastening action, thereby action of the predetermined fastening force can be confirmed.SELECTED DRAWING: Figure 2
Inventors:
Tsuneyasu Miyamoto
Taichi Nakayama
Minoru Toyooka
Shinji Tsuyama
Taichi Nakayama
Minoru Toyooka
Shinji Tsuyama
Application Number:
JP2018009520A
Publication Date:
December 15, 2021
Filing Date:
January 24, 2018
Export Citation:
Assignee:
Eagle Clamp Co., Ltd.
International Classes:
F16B2/10; F16B39/28
Domestic Patent References:
| JP52160051U | ||||
| JP10037919A | ||||
| JP2001234905A | ||||
| JP2004256238A | ||||
| JP2014105843A | ||||
| JP2010078139A |
Foreign References:
| US20130320157 | ||||
| CN105858460A |
Attorney, Agent or Firm:
▲桑▼原 史生