Title:
回り止め機能付き座金及びアタッチメント付きチェーン装置
Document Type and Number:
Japanese Patent JP6721000
Kind Code:
B2
Abstract:
To provide a washer with a whirl-stop function which can increase a fastening force while suppressing an increase of the number of members of a fastening structure, and a chain device with an attachment.SOLUTION: A washer 47 with a whirl-stop function comprises: a first insertion part 101 for making a shaft part 37 of a first bolt 131 insertable into a plate-shaped washer main body 48; a second insertion part 201 for making a shaft part of a second bolt 231 insertable in a position apart from the first insertion part; a first abutment part 103 for allowing the abutment of a flat first side face 102 of either of a head part of the first bolt for inserting the shaft part into the first insertion part, and a nut screwed with a tip part of the first bolt thereon; and a second abutment part 203 for allowing the abutment of a flat second side face 202 of either of a head part of the second bolt for inserting the shaft part into the second insertion part, and a nut screwed with a tip part of the second bolt thereon. Then, the first abutment part and the second abutment part are located on the same line extending along a separation direction between the first insertion part and the second insertion part.SELECTED DRAWING: Figure 4
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Inventors:
Koji Matsumoto
Application Number:
JP2018083251A
Publication Date:
July 08, 2020
Filing Date:
April 24, 2018
Export Citation:
Assignee:
Tsubakimoto Chain Co., Ltd.
International Classes:
F16B43/00; B65G17/42; B65G17/48; F16B39/24
Domestic Patent References:
| JP6335302A | ||||
| JP2002250327A | ||||
| JP3007180U | ||||
| JP2012012208A | ||||
| JP2009249111A |
Foreign References:
| US4073329 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda