Extension joint for concrete piles
OwnerMarkku Vesa, Matti Kaimoinventors
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Abstract
The invention relates to an extension joint for concrete piles of the type in which at least one pin in a first pile penetrates into a recess in a second pile. The end of the pin is provided with a shoulder and is locked in the second pile by means of a wedge having shanks each engaging one side of the pin. The wedge is locked in its driven-in position while being driven in by the bending of the shanks towards each other after they have passed the pin.
Claims8
A joint assembly for connecting two piles, the bottom plates of which are each correspondingly formed with a projecting pin and a hole spaced therefrom whereby the projecting pin of one pile may be inserted into the hole of a second pile, comprising a flange secured to the end of said pin having an outer dimension less than the dimension of said hole, and a locking plate secured to said pile over the bottom plate and having an opening in registry with said hole through which said flange passes, and a U-shaped wedge insertable about said pin, between the flange and the upper surface of the locking plate for placing said flange and locking plate under opposing stress thereby securing said piles together.
Dependencies are inferred from the claim text.