Title:
SCREW PIECE FOR INSULATING MATERIAL CONSTRUCTION OF CONCRETE WALL SURFACE
Document Type and Number:
WIPO Patent Application WO/2011/019097
Kind Code:
A1
Abstract:
The present invention relates to a screw piece for insulating material construction of a concrete wall surface, which is used for attaching insulating materials and finishing materials onto a concrete wall surface for construction. More particularly, the screw piece is formed with screw threads in a dual structure of main threads and auxiliary threads, wherein the outer diameters of the auxiliary threads are smaller than that of the main threads so that it is possible to easily and simply carry out coupling at the time of construction and noticeably improve stability through dual coupling force after the construction. The screw piece (40) of the present invention comprises: a conical head (41) formed with a tool coupling groove (42) in the + or - shape on top thereof; a rod-shaped shaft (42) formed in the longitudinal direction at the lower part of the head (41) and having a sharp protrusion (46) at the end thereof; and main threads (43) and auxiliary threads (44) spirally formed on the outer periphery of the shaft (42) through the upper and lower parts thereof, wherein the main threads (43) and auxiliary threads (44) are protruded in a thin plate shape with diameters different from each other in a dual structure.
Inventors:
KIM DONG SOO (KR)
Application Number:
PCT/KR2009/004496
Publication Date:
February 17, 2011
Filing Date:
August 12, 2009
Export Citation:
Assignee:
KIM DONG SOO (KR)
International Classes:
F16B39/282; F16B5/00; F16B39/00
Foreign References:
| US6250866B1 | 2001-06-26 | |||
| US20060140738A1 | 2006-06-29 | |||
| JP2006329254A | 2006-12-07 |
Attorney, Agent or Firm:
JOO, JONG HO (KR)
주종호 (KR)
주종호 (KR)
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