Title:
拡孔部を有するネジ
Document Type and Number:
Japanese Patent JP7148588
Kind Code:
B2
Abstract:
To provide a screw having a hole expanding portion.SOLUTION: A screw includes a head portion, a rod body extended from the head portion, and a hole expanding portion formed on the rod body. The rod body defines a vertical direction axis. The hole expanding portion has a lateral cross-section that does not have a thread and becomes generally triangular. The hole expanding portion includes three sloping blades separated in a circumferential direction of the rod body, and a guide slope is formed between the adjacent two sloping blades. Each sloping blade obliquely extends toward the head portion with respect to a horizontal axis perpendicular to the vertical direction axis.SELECTED DRAWING: Figure 1
Inventors:
Xu Kuniyasu
Satoru
Satoru
Application Number:
JP2020207921A
Publication Date:
October 05, 2022
Filing Date:
December 15, 2020
Export Citation:
Assignee:
Xu Kuniyasu
Satoru
Satoru
International Classes:
F16B25/10
Domestic Patent References:
| JP63128308U | ||||
| JP4013813U | ||||
| JP3162311U | ||||
| JP2001289223A | ||||
| JP2018017283A | ||||
| JP4531510B2 | ||||
| JP2020060246A | ||||
| JP49038851U | ||||
| JP59106714A | ||||
| JP59017011A |
Foreign References:
| US20060153662 |
Attorney, Agent or Firm:
Noboru Wada
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