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Title:
INSERT BOLT HAVING ANTI-TURN FUNCTION
Document Type and Number:
WIPO Patent Application WO/2014/126420
Kind Code:
A1
Abstract:
The present invention relates to an insert bolt, and more particularly an insert bolt having an anti-turn function wherein one-way teeth are formed in the bottom face of a bolt head comprised in the insert bolt, such that the bolt shaft can turn only in the clockwise direction when casting concrete, thereby preventing the bolt shaft from loosening from a connecting rod. The insert bolt comprises: the bolt shaft[100]; a spring[200] which is coupled to the outside of the bolt shaft[100] and implements an elastic function; a sliding free-movement member[300] which is coupled to the outside of the bolt shaft, is coupled to a lower part of the spring and performs a sliding movement; a supporting rib member[400] which is positioned in the lower part of the sliding free-movement member and supports the sliding free-movement member[300]; and a connecting rod [500] which connects to a lower part of the bolt shaft[100]. In the insert bolt, the bolt shaft[100] comprises: a disc-shaped head part[110]; and a central shaft[120] in the form of a circular cylinder integrally formed in the middle of the disc-shaped head part[110]; and the disc-shaped head part[110] has one-way teeth[111] formed therein, while the lower part of the central shaft[120] has a screw thread formed therein. The one-way teeth[111] comprise an inclined surface[111a] and a vertical surface[111b] such that, when an external pressure due to concrete casting is applied, the concrete casting pressure is dispersed via the inclined surfaces and the concrete casting pressure is aggregated via the vertical surfaces such that there is a turning force only in the direction in which the bolt shaft tightens onto the connecting rod.

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Inventors:
JUNG, Kab Hee (19-1, Sinheungmaeul 5-gil Siheung-si, Gyeonggi-do 429-888, 429-888, KR)
Application Number:
KR2014/001235
Publication Date:
August 21, 2014
Filing Date:
February 14, 2014
Export Citation:
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Assignee:
JUNG, Kab Hee (19-1, Sinheungmaeul 5-gil Siheung-si, Gyeonggi-do 429-888, 429-888, KR)
International Classes:
F16B35/04; E04B1/41
Foreign References:
KR200152833Y11999-07-15
JPH0738736U1995-07-14
US20120266560A12012-10-25
KR20000017263U2000-09-25
KR200379873Y12005-03-24
Attorney, Agent or Firm:
WHOANG, Won Taik (3rd fl, 19Teheran-ro 34-gil, Gangnam-gu, Seoul 135-920, 135-920, KR)
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