US 12,477,978 B2
Power tool and accessory mount device
Ronald J. Hoffman, Iva, SC (US); and Christopher A. Holman, Clemson, SC (US)
Assigned to Techtronic Cordless GP, Anderson, SC (US)
Filed by Techtronic Cordless GP, Anderson, SC (US)
Filed on Nov. 9, 2022, as Appl. No. 17/983,871.
Claims priority of provisional application 63/321,162, filed on Mar. 18, 2022.
Prior Publication US 2023/0292658 A1, Sep. 21, 2023
Int. Cl. A01D 34/416 (2006.01)
CPC A01D 34/4165 (2013.01) 16 Claims
OG exemplary drawing
 
1. An accessory mount device for a power tool, the device defining a first axis around which the device is rotatable and a first direction co-directional to the first axis, the device defining a first end and a second end separated along the first axis, and the device defining a second direction extending radially from the first axis, the device comprising:
a driven member;
a plate;
an upper housing comprising a centerbody extending along the first direction;
a spring extending along the first direction through the centerbody at the upper housing;
a flyweight comprising a first flyweight portion configured to translate along the first direction and contact the plate, the flyweight comprising a second flyweight portion configured to translate along the second direction, wherein the flyweight is positioned at a hinge between the first flyweight portion and the second flyweight portion, and wherein the flyweight is configured to rotate along the hinge to push the first flyweight portion to the plate and translate the plate and the driven member along the first direction toward the first end when a rotational speed threshold about the first axis is exceeded; and
a flyweight latch configured to translate substantially along the second direction when a threshold speed about the first axis is exceeded.