Set screw fixing device for spring hinge

• US 5,048,155 A
• Filed: 09/11/1989
• Issued: 09/17/1991
• Est. Priority Date: 09/11/1989
• Status: Expired due to Fees

• Current Assignee: Hyundae Precision Co. Ltd.
• Original Assignee: Hyundae Precision Co. Ltd.
• Inventors: Hwang, Kyu B.
• Primary Examiner(s): Rowan, Kurt
• Assistant Examiner(s): Miner, James
• Application Number:
  US07/405,537
• Time in Patent Office: 736 Days
• Field of Search: 16/300, 16/301, 16/298, 16/299
• US Class Current: 16/301
• CPC Class Codes: E05F 1/1215 with a canted-coil torsion spring
• CPC Class Codes: E05Y 2900/132 Doors

Abstract

A set screw fixing device for a spring hinge capable of executing the fixing work of the set screw simply and easily by making a few passing holes to the upper pintle for according with both the pin holes and the screw hole simultaneously so as to insert a temporary fixing pin to stop the turned pintle for giving the returning elasticity to the torsion spring. The device comprises a few passing holes penetrated radially with predetermined angular intervals to the upper pintle so as any one of them may be accorded with the pin holes simultaneously with the screw hole by another neighbouring passing hole, and a temporary fixing pin.

Claims

1. A spring hinge including a pintle connected to a torsion spring and including a hinge knuckle adapted to be turned by the pintle and spring when the pintle is fixed to the hinge knuckle, the improvement wherein:

said pintle is in the shape of a cylinder with an outer wall centered about a central axis of rotation and has a plurality of pintle holes, each pintle hole extending radially from the outer wall into the pintle along a pintle hole axis, said pintle hole axis extending radially through and normal to said central axis, the pintle hole axis for one or more of said pintle holes offset from the pintle hole axis for one or more other of said pintle holes by a pintle hole offset angle,

said hinge knuckle has an inner knuckle wall forming a cylindrical opening for receiving the pintle such that the pintle is constrained, when not fixed, to rotate within the hinge knuckle about the central axis, said hinge knuckle having a plurality of knuckle holes extending through said knuckle wall, each said knuckle hole oriented along a knuckle hole axis extending radially from and normal to said central axis, the knuckle hole axis for one or more of said knuckle holes offset from the knuckle hole axis for one or more other of said knuckle holes by a knuckle hole offset angle, said pintle hole offset angle equal to said knuckle hole offset angle whereby two or more pintle holes oriented along two or more pintle hole axes are concurrently alignable respectively with two or more knuckle holes oriented along two or more knuckle hole axes,

first fixing means for insertion through a first knuckle hole into a first pintle hole to initially fix the alignment of the pintle relative to the hinge knuckle, said first pintle hole extending completely through said pintle,

said hinge knuckle having another knuckle hole extending through said knuckle wall, oriented along the knuckle hole axis for said first knuckle hole, and located on the opposite side of said central axis from said first hole, whereby said first fixing means is insertable in a straight line through said first knuckle hole, said first pintle hole and said another knuckle hole,

second fixing means for insertion through a second knuckle hole into a second pintle hole, when the pintle is initially fixed by said first fixing means, to finally fix the alignment of the pintle relative to the hinge knuckle.