US 12,303,984 B2
Chuck with lock sleeve
Fei Huang, Suzhou (CN); Tingwei Zeng, Suzhou (CN); and Jichun Zhou, Suzhou (CN)
Assigned to JACOBS CHUCK MANUFACTURING (SUZHOU) COMPANY, LTD., Suzhou (CN); and APEX BRANDS, INC., Apex, NC (US)
Appl. No. 18/837,406
Filed by Jacobs Chuck Manufacturing (Suzhou) Company, Ltd., Suzhou (CN); and Apex Brands, Inc., Apex, NC (US)
PCT Filed Feb. 11, 2022, PCT No. PCT/CN2022/075993
§ 371(c)(1), (2) Date Aug. 9, 2024,
PCT Pub. No. WO2023/151013, PCT Pub. Date Aug. 17, 2023.
Prior Publication US 2025/0108440 A1, Apr. 3, 2025
Int. Cl. B23B 31/12 (2006.01)
CPC B23B 31/123 (2013.01) [B23B 31/1253 (2013.01); Y10T 279/17615 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A chuck for use with a power driver having a rotatable drive spindle, the chuck comprising:
a plurality of jaws;
a body configured to rotate with the drive spindle;
a nut operably coupled to the jaws such that rotation of the nut relative to the body moves the jaws relative to the body in an opening or closing direction;
a first sleeve operably coupled to the nut to rotate with the nut in response to the first sleeve being rotated;
a lock disk coupled to the body such that the lock disk rotates with the body, the lock disk comprising a lock disk wall;
a ball retainer coupled to the first sleeve such that the ball retainer rotates with the first sleeve, the ball retainer comprising a pin engaging surface;
a lock sleeve that is rotatable relative to the ball retainer into a locked position and an unlocked position;
a wedge pin in contact with the pin engaging surface of the ball retainer;
a pin drive spring coupled to the lock sleeve such that the pin drive spring rotates with the lock sleeve, the pin drive spring being in contact with the wedge pin to move the wedge pin along the pin engaging surface in response to rotation of the lock sleeve;
wherein, when the lock sleeve is disposed in the locked position, the wedge pin is positioned by the pin drive spring in a wedged engagement between the pin engaging surface of the ball retainer and the lock disk wall of the lock disk to prevent rotation of the first sleeve and the nut relative to the body in the a first rotational direction but permit rotation of the first sleeve and the nut relative to the body in a second rotational direction, the first rotational direction being opposite the second rotational direction; and
wherein, when the lock sleeve is disposed in the unlocked position, the wedge pin is positioned by the pin drive spring such that the wedge pin is not in the wedged engagement to permit rotation of the first sleeve and the nut in the first rotational direction and second rotational direction.