Hinge device

• US 8,584,322 B2
• Filed: 06/16/2011
• Issued: 11/19/2013
• Est. Priority Date: 06/18/2010
• Status: Active Grant

• Current Assignee: Piolax Incorporated
• Original Assignee: Piolax Incorporated
• Inventors: Nakasone, Hisashi
• Primary Examiner(s): MILLER, WILLIAM L
• Application Number:
  US13/067,646
• Publication Number:
  US 20110308043A1
• Time in Patent Office: 887 Days
• Field of Search: 163/80, 163/81, 163/86, 162/54, 162/62, 162/25, 162/31, 162/32, 16/50, 296/37.8
• US Class Current: 16/380
• CPC Class Codes: E05D 11/082 with substantially radial friction, e.g. cylindrical friction surfaces
• CPC Class Codes: E05D 11/105 the maintaining means acting perpendicularly to the pivot axis
• CPC Class Codes: E05D 2005/106 with non-cylindrical portions
• CPC Class Codes: E05D 5/125 Non-removable, snap-fitted pins removable snap-fitted pins E05D7/1022, E05D7/1055
• CPC Class Codes: E05Y 2900/538 Interior lids

Abstract

According to an aspect of the present invention, a hinge device includes: a shaft part having a protruding part; and a bearing part having an insert hole into which the protruding part is inserted. A first plane part is formed on an outer peripheral surface of the protruding part so as to extend in an axial direction thereof. A second plane part is formed on an inner peripheral surface of the insert hole so as to extend in an axial direction thereof. A diameter of a circumscribed circle defined on an sectional outer periphery of the protruding part in the axial direction thereof is larger than a diameter of an inscribed circle defined on a sectional inner periphery of the insert hole in the axial direction thereof. And, at least one of the protruding part and the insert hole has an elasticity.

Claims

1. A hinge device comprising:

a shaft part having a protruding part; and

a bearing part having an insert hole into which the protruding part is inserted,

wherein a first plane part is formed on an outer peripheral surface of the protruding part so as to extend in an axial direction thereof,

wherein a second plane part is formed on an inner peripheral surface of the insert hole so as to extend in an axial direction thereof,

wherein a diameter of a circumscribed circle defined on the outer peripheral surface of the protruding part is larger than a diameter of an inscribed circle defined on the inner peripheral surface of the insert hole at the second plane part, and

wherein at least one of the protruding part and the insert hole has an elasticity.

2. The hinge device of claim 1,

wherein a diameter of an inscribed circle defined on the outer peripheral surface of the protruding part at the first plane part is equal to or larger than the diameter of the inscribed circle defined on the inner peripheral surface of the insert hole at the second plane part.

3. The hinge device of claim 1,

wherein the protruding part is formed into a hollow shape thereby providing the elasticity.

4. The hinge device of claim 1,

wherein the shaft part includes:

a leg part extending from an end of the protruding part in the axial direction; and

a flange part provided at an end of the leg part to have a diameter larger than a diameter of the leg part,

wherein an engagement/attachment part which is engaged with the flange part is provided inside the insert hole, and

wherein a projection which diametrically projects is formed in the leg part, while a recess corresponding to the projection is formed in the engagement/attachment part.