DOOR HINGE

• US 20120060323A1
• Filed: 09/02/2011
• Published: 03/15/2012
• Est. Priority Date: 09/13/2010
• Status: Active Grant

• Current Assignee: Poong Won Industry Co., Ltd.
• Original Assignee: Poong Won Industry Co., Ltd.
• Inventors: Lee, June-Young
• Granted Patent: US 8,474,103 B2
• Time in Patent Office: Days
• US Class Current: 16/275
• CPC Class Codes: E05D 15/406 with pivoted arms and sliding guides E05D15/42, E05D15/44 take precedence
• CPC Class Codes: E05D 15/582 with horizontal swinging axis E05D15/581 takes precedence
• CPC Class Codes: E05Y 2900/308 for ovens
• CPC Class Codes: F24C 15/023 Mounting of doors, e.g. hinges, counterbalancing

Abstract

A door hinge includes a fixing member (10) fixed to a door frame (100), an actuation frame (20) fixed to a door (200) to enable the door to be opened and closed, a slider (22) coupled between the actuation frame and the fixing member, a rotatable moving guide plate (30) rotatably moved around the hinge (34) when the door is opened, and configured to forwardly push the slider, a guide roller (18) to resiliently support the rotatable movement of the rotatable moving guide plate, and a connection frame (60) having one end connected to a slot (11) of the fixing member by a pin (62) and the other end connected to the actuation frame by the hinge (24) and forwardly pushed out when the door is opened along with the slider.

Claims

1. A door hinge comprising a fixing member (10) fixed to and installed in a door frame (100) and an actuation frame (20) fixed to and installed in a door (200), rotatably moved around a hinge (24), and configured to enable the door (200) to be opened and closed, the door hinge comprising:

a slider (22) configured to have one end connected to the actuation frame (20) and the other end connected to a guide pin (14) inserted into a slant guide hole (12) of the fixing member (10);

a rotatable moving guide plate (30) configured to have one end connected to the guide pin (14) and the other end connected to the fixing member (10) by a hinge (34), rotatably moved around the hinge (34) when the door (200) is opened, and configured to forwardly push the slider (22);

a guide roller (18) configured to resiliently support the rotatable movement of the rotatable moving guide plate (30) by tensile force of a spring (16) with the guide roller (18) coming in contact with a bottom of the rotatable moving guide plate (30); and

a connection frame (60) configured to have one end connected to a slot (11) of the fixing member (10) by a pin (62) and the other end connected to the actuation frame (20) by the hinge (24) and forwardly pushed out when the door (200) is opened along with the slider (22),

wherein the slider (22) and the connection frame (60) are forwardly pushed out when the door (200) is opened and operated to forwardly draw the actuation frame (20) at a predetermined distance.

2. The door hinge as claimed in claim 1, further comprising a cover frame (90) fixed to and installed in the door (200) and detachably covered in the actuation frame (20),

wherein the cover frame (90) comprises:

a height limit pin (86) engaged with an insertion groove (70) formed at a top end of the actuation frame (20) and configured to limit a height that the actuation frame (20) is inserted;

a holder (80) rotatably connected to the height limit pin (86) and configured to have a space (82) into which the top end of the actuation frame (20) is inserted;

a latch jaw (86) protruded into one side of the holder (80) and separated from the holder (80) with the latch jaw (86) engaged with a latch groove (72) of the actuation frame (20) when the holder (80) performs a rotation operation; and

a spring (88) configured to resiliently support the rotation operation of the holder (80).