Title:
CONCEALED DOOR HINGE
Document Type and Number:
WIPO Patent Application WO/2011/118951
Kind Code:
A2
Abstract:
The present invention relates to a concealed door hinge for fastening a door leaf to a door frame, the door hinge comprising: a fixing piece (10), which forms a bracket-shaped bend unit and is fixed onto the hinge installation unit of the door frame; a rotating piece (20) having on one side thereof a shaft pin coupling unit, which couples with a shaft pin (15) that is a rotation support shaft, and connecting on the other side thereof with the door leaf, such that the movement of the rotating piece within the bracket-shaped bend unit of the fixing piece (10) is enabled when the door leaf is opened/closed; and an L-shaped door leaf connection fitting (30), which is fixed onto the door leaf and insertingly attached to the rotating piece (20), wherein the rotating piece (20) has a hollow portion (24), which has a vertical opening on the surface of one side thereof, and the door leaf connection fitting (30) is insertingly connected to the hollow portion (24), and thus when a protruding portion (35) is inserted into the hollow portion (24), the height of the protruding portion (35) can be adjusted by a first adjusting unit located on the upper and the lower sides of the rotating piece (20), which enables the adjustment of the height of the door leaf during door construction. The present invention primarily allows easy insertion of the protruding portion of the door leaf into the hollow portion of the door frame, fine adjustment of the height of the door leaf, and easy adjustment of the space between the door leaf and the door frame during various door constructions, which greatly facilitate the fastening of the door to the door frame and reduces the construction time. Also, fixing the door completely using a fastening unit enhances the durability thereof by preventing twisting of the door leaf that can result from prolonged use.
Inventors:
PARK JANG-HO (KR)
Application Number:
PCT/KR2011/001939
Publication Date:
September 29, 2011
Filing Date:
March 22, 2011
Export Citation:
Assignee:
PARK JANG-HO (KR)
International Classes:
E05D5/06; E05D3/02; E05D7/00
Foreign References:
| JP2007211577A | 2007-08-23 | |||
| JP2008025269A | 2008-02-07 | |||
| JP2002129822A | 2002-05-09 |
Attorney, Agent or Firm:
KIM, Il-Hwan (1659-2 Inhundong Gwanak-gu, Seoul 151-832, KR)
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Claims: