Concealed self-closing hinge

• US 4,716,622 A
• Filed: 02/27/1986
• Issued: 01/05/1988
• Est. Priority Date: 02/27/1986
• Status: Expired due to Term

• Current Assignee: Newell Operating Company (Newell Brands Inc.)
• Original Assignee: Amerock Corporation (Newell Brands Inc.)
• Inventors: DeBruyn, William
• Primary Examiner(s): Kazenske, E. R.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/833,168
• Time in Patent Office: 677 Days
• Field of Search: 16/296, 16/335, 16/341, 16/277, 16/278, 16/297, 16/319, 16/321
• US Class Current: 16/297
• CPC Class Codes: E05D 11/1014 for maintaining the hinge in only one position, e.g. closed
• CPC Class Codes: E05D 11/105 the maintaining means acting perpendicularly to the pivot axis
• CPC Class Codes: E05D 5/08 of cylindrical shape
• CPC Class Codes: E05D 7/04 Hinges adjustable relative to the wing or the frame
• CPC Class Codes: E05F 1/1284 with a leaf or similar spring
• CPC Class Codes: E05Y 2201/638 Cams; Ramps
• CPC Class Codes: E05Y 2600/20 with specific transmission movement
• CPC Class Codes: E05Y 2900/20 for furniture, e.g. cabinets

Abstract

The door member of a self-closing hinge includes a cup which is concealed within a pocket formed in the inner side of a door. A curl on the frame member of the hinge pivotally receives a hinge pin which is carried by the cup. To effect the self-closing action, a leaf spring is mounted on the outer side of the end wall of the cup and includes a tongue which extends through an opening in the end wall and into resilient bearing engagement with the curl.

Claims

1. A concealed self-closing hinge for mounting a door for swinging on a fixed frame, said hinge comprising a door member having a cup defined by an end wall and by an annular wall formed integrally with and projecting inwardly from said end wall, said end wall having inner and outer sides, means formed integrally with said cup for mounting said door member on said door, a hinge pin supported by said cup adjacent said annular wall and having at least a portion located inwardly of the end wall of the cup, said hinge further comprising a frame member having a wing for mounting said frame member on said frame, an arm having one end attached to the wing of said frame member and extending into said cup, a curl on the opposite end of said arm and wrapped around said hinge pin to connect said door and frame members pivotally to one another, and a spring for urging said door member to and releasably holding said door member in a closed position with respect to said frame member, said spring comprising a single piece of resiliently yieldable material formed separately of said cup and having a generally flat plate portion secured to and lying along the outer side of the end wall of said cup, an opening formed through said end wall adjacent said hinge pin, and said spring further comprising a tongue portion formed integrally with and bent inwardly from said plate portion and extending inwardly through said opening and into said cup to bear against and ride on said curl.

2. The combination of, an upright door, a fixed frame and a concealed self-closing hinge for mounting the door for swinging on the frame about an upright axis and between open and closed positions, the door having inner and outer sides and being formed with a pocket which opens out of the inner side of the door and which includes an upright and inwardly facing surface, said hinge comprising a door member having a cup disposed within said pocket, said cup having an upright end wall located face-to-face with the upright surface of said pocket and having an annular wall formed integrally with and projecting inwardly from said end wall, said end wall having inner and outer sides, upwardly and downwardly projecting mounting wings formed integrally with the inner edge of said annular wall and secured to said door, an upright hinge pin supported by said cup adjacent said annular wall and having at least a portion located inwardly of the end wall of the cup, said hinge further comprising a frame member having a mounting wing secured to said frame, an arm having one end attached to the mounting wing of said frame member and extending into said cup, a curl of the opposite end of said arm and wrapped around said hinge pin to connect said door and frame members pivotally to one another and permit said door to swing between open and closed positions relative to said frame, and a spring acting on said curl and causing said door to be urged to and held releasably in its closed position, said spring comprising a single piece of resiliently yieldable material formed separately of said cup and having a generally flat plate portion secured to said cup, said plate portion lying between the upright surface of said pocket and the outer side of said end wall and being disposed in opposing relation with the outer side of said end wall, an opening formed through said end wall adjacent said hinge pin, part of the plate portion of said spring overlying part of said opening, and said spring further comprising a tongue portion formed integrally with and bent inwardly from said plate portion and extending inwardly through said opening and into said cup, said tongue portion bearing against said curl and riding on said curl when said door is swung between said open and close positions.