US 12,280,471 B2
Tool with gearless ratchet mechanism
Devin W. Herritz, Sussex, WI (US); Aaron S. Blumenthal, Shorewood, WI (US); Christian R. Braun, Milwaukee, WI (US); Aaron M. Williams, Milwaukee, WI (US); and Ryan C. Dick, Sussex, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed on Jun. 14, 2022, as Appl. No. 17/840,257.
Application 17/840,257 is a continuation of application No. PCT/US2022/031589, filed on May 31, 2022.
Claims priority of provisional application 63/224,585, filed on Jul. 22, 2021.
Claims priority of provisional application 63/195,463, filed on Jun. 1, 2021.
Prior Publication US 2022/0379441 A1, Dec. 1, 2022
Int. Cl. B25B 13/46 (2006.01); B25B 13/48 (2006.01)
CPC B25B 13/462 (2013.01) [B25B 13/481 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A driving tool comprising:
a handle;
a head coupled to the handle, the head comprising:
an outer surface that defines a first dimension;
a bore having a surface that defines a second dimension; and
a clutch mechanism positioned within the bore, the clutch mechanism including:
a central body;
a plurality of projections extending radially outward from the central body;
a plurality of rollers;
a plurality of springs, each spring including a first end and a second end opposing the first end, the first end of each spring coupled to one of the plurality of rollers and the second end of each spring coupled to an adjacent projection; and
a drive mechanism supported from the central body;
wherein each of the plurality of springs includes a first diameter at the first end and a second diameter at the second end of each spring, and wherein the first diameter of each spring is different than the second diameter of each spring;
wherein the second dimension is between 75% and 95% of the first dimension; and
wherein the second dimension is about 26.5 mm.