Clutch for Pipe Winch
AssigneeYuan Pin Industrial Co., Ltd.
InventorMing Chih Hsieh
Life of this patent
Estimating the term…
Abstract
A pipe winch includes a shell, a reeling unit and a clutch. The reeling unit includes a spring-biased reel connected to a ratchet. The clutch includes a pedal, a bearing, a shaft, at least one crank, a lever, an axle, a pawl, a returning element and a spring. The shaft is supported on the bearing formed on the shell. The crank extends throughout the shell and connects the pedal to the shaft. The lever is connected to the shaft. The axle extends parallel to an axis of the reel. The pawl is connected to the axle and formed with a tip for engagement with the teeth of the ratchet and a handle in contact with the lever. The returning element is connected to the axle. The spring is arranged between the returning element and the shell.
Claims10
A pipe winch comprising a shell (1), a reeling unit (11) comprising a spring-biased reel (12) inserted in the shell (1), and a clutch (20) operatively connected to the spring-biased reel (12), the pipe winch being characterized by that the reeling unit (11) further comprises a ratchet (13) coaxially connected to the reel (12) and formed with teeth (14) and that the clutch (20) comprises:
- a pedal (21) located out of the shell (1);
- a bearing (24) formed on an internal portion of the shell (1);
- a shaft (23) rotationally supported on the bearing (24) in the shell (1);
- at least one crank (22) extending throughout the shell (1) and comprising an end connected to the pedal (21) and another end connected to the shaft (23) so that the crank (22) is not rotatable relative to the shaft (23);
- a lever (25) connected to the shaft (23);
- an axle (26) rotationally inserted in the shell (1) parallel to an axis of the reel (12);
- a pawl (27) connected to the axle (26) and formed with a tip (271) at an end for engagement with the teeth (14) of the ratchet (13) and a handle (272) at another end in contact with the lever (25);
- a returning element (28) connected to the axle (26) so that they are not rotatable relative to each other;
- and
- a spring (29) comprising an end connected to the returning element (28) and another end connected to the shell (1).
Dependencies are inferred from the claim text.