Door hinge

• US 8,474,103 B2
• Filed: 09/02/2011
• Issued: 07/02/2013
• 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
• Primary Examiner(s): Batson, Victor
• Assistant Examiner(s): San, Jason W
• Application Number:
  US13/224,406
• Publication Number:
  US 20120060323A1
• Time in Patent Office: 669 Days
• Field of Search: 162/86, 162/87, 163/70, 163/71, 162/77, 126/192, 126/194, 126/197
• US Class Current: 16/370
• 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 for a door comprising:

a fixing member (10) fixed to in a door frame (100), the fixing member (10) having a pin guide slot (11) extending in a lateral direction;

an actuation frame (20) fixed to a door (200), the actuation frame (20) pivotally moveable about a hinge, (24) and configured to move the door (200) between a closed position and an open position;

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

a rotatable moving guide plate (30) having one end connected to the guide pin (14) and the other end connected to the fixing member (10) by a hinge (34), the rotatable moving guide plate (30) pivotally moveable about the hinge (34) when the door (200) is, operated between the closed and open positions and configured to forwardly push the slider (22) by said pivotal movement about the hinge (34);

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

a connection frame (60) having one end slidably coupled to the laterally extending pin guide slot (11) of the fixing member (10) by a pin (62) inserted into the pin guide slot (11) and the other end connected to the actuation frame (20) by the hinge (24) and forwardly moveable when the door (200) is operated to the open position from the closed position,

wherein, when the door (200) is operated from the closed position to the open position, the slider (22) and the connection frame (60) are simultaneously moveable forwardly, thereby, operating the actuation frame (20) to draw to a predetermined distance and enabling the operation of the door (200) without interference between the door (200) and the door frame (100).

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

wherein the cover frame (90) comprises:

a height limit pin (84) coupled to an insertion groove (70) formed at a top end of the actuation frame (20) to limit a height of the actuation frame (20);

a holder (80) rotatably connected to the height limit pin (84) and configured to engage with the top end of the actuation frame (20);

a latch jaw (86) protruded from one side of the holder (80) and configured to detachably engage with a latch groove (72) of the actuation frame (20) when the cover frame (90) is coupled to the actuation frame (20); and

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