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Knock-on earth working tool securement assembly

  • US 5,711,378 A
  • Filed: 04/17/1996
  • Issued: 01/27/1998
  • Est. Priority Date: 04/17/1996
  • Status: Expired due to Term
First Claim
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1. An assembly for securement of an earth working tool to an elongated member complementary with a socket of the tool to secure the tool to an earth working implement attached to said elongated member by a wedging frictional grip between said elongated member and said socket, said arrangement comprising, in combination:

  • (a) said elongated member being an elongated tapered adaptor, said elongated tapered adaptor including;

    i) a first end and an opposed second end;

    ii) securement means for fixedly securing the adaptor to said earth working implement;

    iii) opposed surfaces complementary with inner surfaces of the socket of said earth working tool for a wedging frictional grip between the adaptor and the socket upon a forced insertion of the socket over and along the adaptor, in a direction from said first end to said second end of the adaptor; and

    b) blocking means adapted to block an additional relative movement between the socket and the adaptor excessively beyond a location corresponding to a firm wedging frictional grip between the socket and the adaptor required for operative securement of the tool to the implement, to allow release of the tool from the implement by a hammer blow even if there has been said additional relative movement due to an excessive impact at the tool.

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