US 11,833,643 B2
Pressing and driving mechanism and electric screwdriver containing the same
Kwok Ting Mok, Hong Kong (CN)
Assigned to TECHTRONIC POWER TOOLS TECHNOLOGY LIMITED, Tortola (VG)
Filed by TECHTRONIC CORDLESS GP, Anderson, SC (US)
Filed on Apr. 29, 2022, as Appl. No. 17/732,704.
Application 17/732,704 is a continuation of application No. 16/601,197, filed on Oct. 14, 2019, granted, now 11,345,002.
Claims priority of application No. 201821816783.0 (CN), filed on Nov. 5, 2018.
Prior Publication US 2022/0250215 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B25B 21/02 (2006.01); B25B 21/00 (2006.01)
CPC B25B 21/008 (2013.01) [B25B 21/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pressing and driving mechanism adapted for use with an electric screwdriver, the pressing and driving mechanism comprising:
a housing;
a torque transmitting shaft connected to the housing for sliding movement relative to the housing in an axial direction;
an anvil configured to receive rotational impacts and coupled to the torque transmitting shaft for transmitting the rotational impacts thereto;
a shuttle coupled to the torque transmitting shaft for movement therewith relative to the housing in the axial direction;
a terminal assembly connected to the shuttle and movable with the same; and
a printed circuit board fixed relative to the housing and adapted to be in mechanical contact with the terminal assembly,
wherein the terminal assembly and the printed circuit board form a potentiometer with a resistance value that is variable in dependence upon a position of the terminal assembly relative to the printed circuit board.