US 12,403,580 B2
Member for adjusting force application in reciprocating assembly
John Lefavour, Litchfield, NH (US); Robert Auger, Merrimack, NH (US); Cody McCarthy, Strafford, NH (US); and Luke Desmarais, Milan, NH (US)
Assigned to Hubbell Incorporated, Shelton, CT (US)
Filed by Hubbell Incorporated, Shelton, CT (US)
Filed on Nov. 10, 2023, as Appl. No. 18/506,450.
Claims priority of provisional application 63/427,579, filed on Nov. 23, 2022.
Prior Publication US 2024/0165784 A1, May 23, 2024
Int. Cl. B25F 5/00 (2006.01)
CPC B25F 5/005 (2013.01) 20 Claims
OG exemplary drawing
 
1. A reciprocating assembly for driving a working portion of a tool, the reciprocating assembly comprising:
a bore configured to contain hydraulic fluid;
a piston received within the bore and configured to move within the bore in a reciprocating motion between an extended position and a retracted position, wherein displacement of the piston within the bore is configured to cause displacement of hydraulic fluid when hydraulic fluid is in the bore, the piston including an internal cavity extending at least partially along a length of the piston; and
a push pin received within the internal cavity of the piston;
wherein the bore, the piston, and the push pin are configured such that a movement of the push pin relative to the bore causes translation of the piston within the bore to the extended position along a translation axis; and
wherein the push pin is configured to pivot during the movement of the push pin, between an in-line position and an angled position, the in-line position substantially parallel to the translation axis; and
wherein the push pin includes a cutout at each of two opposite ends, and wherein each cutout is configured to at least partially receive a ball bearing, and wherein one of the ball bearings is received within the internal cavity and the other of the ball bearings is coupled to a drive assembly configured to supply a force which causes the movement of the push pin, and wherein the push pin is configured to rotate about the ball bearings.