Title:
MACHINE SCREW FIXING AUXILIARY TOOL
Document Type and Number:
Japanese Patent JP2960339
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a machine screw fixing auxiliary tool which can fasten a building member by screwing a machine screw to the full length of a trunk, regardless of the quantity of the building member.
SOLUTION: A machine screw insert hole 2 and a strange form hole 3 are provided to a trunk 4 inserted to the lower hole 16 of equipment 9 and a building member 8, the strange form hole 3 is formed in a section form having two uneven projecting lines 13 and 13 by combining a sector part 10 and a dividing part 11, and when the machine screw 6 advances, the part of the trunk 4 where the strange form hole 3 is provided is expanded evenly. As a result, the full length of the thread ridge 7 of the machine screw 6 is screwed to the trunk 4, so as to obtain a solid fastening force.
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Inventors:
WAKAI TAKAO
Application Number:
JP26868795A
Publication Date:
October 06, 1999
Filing Date:
October 17, 1995
Export Citation:
Assignee:
WAKAI SANGYO KK
International Classes:
F16B13/08; F16B13/04; F16B13/12; F16B25/00; F16B35/04; (IPC1-7): F16B13/04; F16B25/00; F16B35/04
Domestic Patent References:
| JP4248009A | ||||
| JP86734B2 | ||||
| JP311205Y1 | ||||
| JP4212437Y1 | ||||
| JP449529Y1 |
Other References:
【文献】特許2502253(JP,B2)
【文献】特許2851440(JP,B2)
【文献】特許2783781(JP,B2)
【文献】特許2851440(JP,B2)
【文献】特許2783781(JP,B2)
Attorney, Agent or Firm:
Bunji Kamata (2 outside)