Title:
外れ止め具付きフックが装着された張架・牽引材長さ調節装置
Document Type and Number:
Japanese Patent JP6753572
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a safe hook with a disengagement stopper that refuses incomplete hooking, enables an operator to confirm a reliably hooked state, and conforms to an international standard.SOLUTION: A hook with a disengagement stopper includes an almost C-shaped hook body 11 when seen from sideways, and a disengagement stopper 12 fitted on the hook body. The hook body 11 is provided with a bottleneck gate 11. The disengagement stopper 12 has a contacting part 12a brought in contact with an inner side of a hook part 11d with prescribed resilient force, block parts 12d, 12e disposed opposite an insertion port, and ear side parts 12b, 12c swollen from the hook body 11 by a length exceeding a ring width of a hanging chain or other stretching/traction material. Furthermore, a gap between a tip of the hook part 11d and the block parts 12d, 12e to the ear side part is kept smaller than a diameter of the stretching/traction material, and a pivot shaft part is pivoted on the tip of the hook body, while the hanging chain or other stretching/traction material is made to pass through the bottleneck gate 11from the insertion port and hooked on a hook groove 11.SELECTED DRAWING: Figure 1
Inventors:
Tokunaga Kazuyuki
Yoshimori Hideki
Takashi Masuda
Shigeki Matsui
Yoshimori Hideki
Takashi Masuda
Shigeki Matsui
Application Number:
JP2016144073A
Publication Date:
September 09, 2020
Filing Date:
July 22, 2016
Export Citation:
Assignee:
Tokunaga Gumi Co., Ltd.
Masuda corporation
Tottori Prefecture Industrial Promotion Organization
Masuda corporation
Tottori Prefecture Industrial Promotion Organization
International Classes:
E04G5/00; F16B45/02
Domestic Patent References:
| JP2004245396A | ||||
| JP2006070572A | ||||
| JP3917007B2 | ||||
| JP2000104399A | ||||
| JP2004138141A | ||||
| JP62173382U |
Attorney, Agent or Firm:
Fujio Oda
Tomoyasu Nomi
Takeshi Yoneyama
Tomoyasu Nomi
Takeshi Yoneyama