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Plastic buckle

  • US 4,800,629 A
  • Filed: 12/22/1987
  • Issued: 01/31/1989
  • Est. Priority Date: 12/25/1986
  • Status: Expired due to Fees
First Claim
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1. A plastic buckle comprising:

  • (a) a stationary bar and a rotatable bar provided adjacent to each other across a space between two opposed side members for fixing a strap inserted between said stationary bar and said rotatable bar;

    (b) said stationary bar being fixed to said two opposed side members and having an abutment portion formed on an inner surface thereof facing said rotatable bar;

    (c) said rotatable bar;

    (i) having a peripheral surface which, in use, is surrounded once by said strap;

    (ii) having a non-circular cross-section,(iii) being rotatably supported on said two opposed side members, and(iv) having two acute angle portions formed on edges of opposite sides thereof; and

    (d) one of said two acute angle portions being brought into abutment against said abutment portion of said stationary bar when a tension force is exerted on said strap to rotate said rotatable bar, thereby clamping said strap between said one acute angle portion and said abutment portion.

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