Back to results
US 4,065,843 AGranted
Brake shoe rivet removal press
OwnerAlfonso M. Elolainventor
Life of this patent
Estimating the term…
Abstract
An hydraulic press for the simultaneous removal of all the brake lining rivets from a brake shoe. The shoe is magnetically retained between the bottom surface of a curved punch retainer and an anvil until the hydraulic system forces the anvil up to clamp the shoe. Hydraulic pressure then automatically forces a curved press against the top ends of spring-loaded drive punches appropriately positioned in the punch retainer so that they move to force the brake lining rivets from the shoe and through the anvil.
Claims9
A press for the simultaneous removal of the lining attaching rivet of a brake shoe, said press comprising:
- an anvil for receipt of said brake shoe, said anvil having an arcuate surface shaped for conforming engagement with one side of a brake shoe received therein and a plurality of holes disposed for alignment with the lining attaching rivets of said brake shoe;
- a punch retaining member disposed in opposition to the anvil and having an arcuate surface shaped for conforming engagement with the side of a brake shoe received on said anvil opposite the side of said shoe engaged with the anvil;
- a plurality of rivet punches positioned for movement within holes in said punch retaining member, each of said punches having a punch end adjacent the arcuate surface of said member for movement therethrough, said punch ends being positioned so as to be simultaneously alignable with the lining attaching rivets of a brake shoe engaged between the anvil and member;
- clamping means for imparting relative movement to the anvil and retaining member to clamp said brake shoe therebetween with the openings of the anvil in alignment with the punch ends of the punches and the lining attaching rivets of the shoe in aligned interposed relationship between said aligned openings and punch ends;
- pressing means for applying a force against the punches to simultaneously drive said plurality of punches through the holes in said anvil and into engagement with the lining attaching rivets of a brake shoe aligned with said holes to drive the rivets into the holes of the anvil aligned therewith.
2 more elements
Dependencies are inferred from the claim text.