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Cam lock buckle

  • US 8,935,833 B2
  • Filed: 10/13/2010
  • Issued: 01/20/2015
  • Est. Priority Date: 10/13/2010
  • Status: Active Grant
First Claim
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1. A cam lock buckle comprising:

  • a first member comprising a bottom portion and rising walls provided on both sides of the bottom portion in a width direction;

    a second member that is held by the first member being spaced apart from the bottom portion of the first member with a gap into which the belt is inserted, the second member comprising a holding portion for holding the belt against the bottom portion; and

    a slide mechanism comprising an elongated hole that is provided to one of the second member and the rising walls and a shaft that is provided to the other of the second member and the rising walls and is engaged with the elongated hole in a slidable manner, the slide mechanism holding the second member in a manner capable of slide movement between a first position at which the shaft is located close to a first end of the elongated hole and a second position at which the shaft is located close to a second end of the elongated hole, whereina gap defined between the holding portion and the bottom portion when the second member is slid to the second position is narrower than a gap defined between the holding portion and the bottom portion when the second member is slid to the first position,one of the holding portion and the bottom portion facing the holding portion is provided with a recess extending along an insertion direction of the belt, andthe other of the holding portion and the bottom portion facing the holding portion is provided with a projection that pushes a part of the belt into the recess, wherein the projection is provided by a convex tread extending along the insertion direction of the belt,wherein the convex tread is configured so that a width of the convex tread is gradually enlarged as the convex tread extends in the insertion direction and a gap against the holding portion gradually narrows when the second member slides from the first position to the second position.

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