DEMOLITION SHEAR TIP BOOT

摘要

A one piece three or four-sided hardened steel boot tip for a distal end upper jaw tang of a heavy duty demolition shear having a upper movable shear jaw with a shear tip or tang, a shear side and a guide side pivotally connected to a lower fixed or movable shear jaw with a shear blade side, a guide side, a distal tie plate and a recess therebetween. The tang has a front edge, side faces with apertures therethrough, a top seat, a rear seat and a bottom seat. The boot tip has a front wall seated on the tang front edge and a right side wall seated on the shear side tang face, rear seat and the top seat. A bottom wall of the boot tip is seated on the tang bottom seat and rear seat forming a shear punching edge between the front wall and the bottom wall. An access plate is seated on the guide side tang face, the top seat and the rear seat. The boot tip right side and access plate have matching apertures therethrough and alignable with the tang apertures to secure the boot and access plate to the tang for protection thereof from the lower jaw shear side, the guide side and the tie plate as the upper jaw moves into and out of the recess. One or more shims are provided and insertable inside the boot against the tang faces and clampable thereto after the faces have become worn or otherwise requires adjustment for maximum clamping force.

主权项

1. A one piece three-sided hardened steel boot tip for a distal end tang of a heavy duty demolition shear having a upper movable shear jaw with a shear side and a guide side pivotally connected to a lower shear jaw with a shear blade side, a guide side, a distal tie plate and a recess therebetween wherein the tang has a front edge, side faces with apertures therethrough, a top seat, a rear seat and a bottom seat, the boot tip comprising:
(a) a front wall adapted to be seated on the tang front edge; (b) a right sidewall adapted to be seated on the shear side tang face, the top seat, the rear seat and the bottom seat; (c) a bottom wall adapted to be seated on the tang bottom seat and the rear seat and forming a shear punching edge between the front wall and the bottom wall; and (d) an access plate adapted to be seated on the guide side tang face, the top seat and the rear seat with the boot tip right sidewall and access plate having matching apertures therethrough and alignable with the tang apertures to secure the boot and access plate to the tang for protection thereof from the lower jaw shear side, the guide side and the tie plate as the upper jaw moves into the recess.