Title:
MULTI-PURPOSE BOLT UNIT FOR FIXING, TO BORED HOLES IN SOFT CONSTRUCTION STRUCTURE, OBJECT TO BE CONSTRUCTED
Document Type and Number:
WIPO Patent Application WO/2024/043421
Kind Code:
A1
Abstract:
The present invention relates to a multi-purpose bolt unit for fixing, to bored holes (H) formed in a soft construction structure, an object (E) to be fixed, the bolt unit comprising: a cylindrical body (10) inserted into a bored hole (H) of the soft construction structure; a tip projection (20) which is formed at the lower end of the cylindrical body (10) and which has an outer diameter larger than that of the cylindrical body (10); an upper threaded surface (30) formed on the upper side of the cylindrical body (10) while spaced from the tip projection (20); an elastic packing tube (50) inserted onto the cylindrical body (10) so as to be held at the tip projection (20); an upper washer (60) fitted to the cylindrical body (10) so as to be held at the upper end of the elastic packing tube (50); a compression nut (70) screw-coupled to the upper threaded surface (30) so as to press the upper washer (60) so that the elastic packing tube (50) expands; and a fastening screw groove (80) formed on the inner side of the cylindrical body (10) so as to penetrate the compression nut (70), thereby opening toward the upper side.
Inventors:
KIM SOJOONG (KR)
Application Number:
PCT/KR2023/002038
Publication Date:
February 29, 2024
Filing Date:
February 10, 2023
Export Citation:
Assignee:
4A SYSTEMS CO LTD (KR)
KIM SOJOONG (KR)
KIM SOJOONG (KR)
International Classes:
E01F9/681; F16B13/12
Foreign References:
| KR102280781B1 | 2021-07-21 | |||
| KR20020094351A | 2002-12-18 | |||
| KR20060114777A | 2006-11-08 | |||
| JP2021025276A | 2021-02-22 | |||
| KR102496119B1 | 2023-02-06 |
Attorney, Agent or Firm:
YOON, Changil (KR)
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