US 9,808,917 B1
Ratchet wrench capable of rotating quickly and driving rotation
Chih-Hung Chien, Nantuo (TW)
Assigned to YIH CHENG FACTORY CO., LTD., Nantuo (TW)
Filed by YIH CHENG FACTORY CO., LTD., Nantuo (TW)
Filed on Sep. 3, 2016, as Appl. No. 15/256,557.
Int. Cl. B25B 23/00 (2006.01); B25B 13/46 (2006.01); B25G 1/06 (2006.01)
CPC B25B 23/0028 (2013.01) [B25B 13/461 (2013.01); B25G 1/063 (2013.01); B25G 1/066 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A ratchet wrench capable of rotating quickly and driving rotation, comprising:
a handle including an arm and a bar body connected to the arm, the bar body including an accommodating slot, the arm including a through hole communicating with the accommodating slot;
a rotary head, the rotary head being connected to the arm and being rotatable with respect to the arm, the rotary head including a plurality of recess portions;
a positioning mechanism, the positioning mechanism including a positioning element, a resilient body, and a block element, the resilient body receiving the positioning element and being received in the through hole, one end of the positioning element being correspondingly disposed at any of the recess portions, the block element being connected to the other end of the positioning element and being received in the accommodating slot; and
a sleeve, the sleeve receiving the bar body while disposed corresponding to the accommodating slot the sleeve operably driving the block element to slide in the accommodating slot, so that the positioning element is positioned and selectively engaged with any of the recess portions,
wherein the positioning element includes a contact pillar, a constraint section extending from the contact pillar, and a rod section extending from the constraint section, the contact pillar is correspondingly engaged with any of the recess portions, and the resilient body receives the rod section to be resiliently clamped between the constraint section and a bottom of the through hole;
wherein the positioning element further includes an end section extending from the rod section, the end section includes a fastening groove, the block element includes a rectangular bar, the rectangular bar includes a penetration hole, and the end section passes through the penetration hole and is fastened by a fastening ring engaged with the fastening groove.