Ratchet wheel hub easy to switch between left and right driving states

Abstract

Provided is a ratchet wheel hub easy to switch between left and right driving states. The ratchet wheel hub includes a mandrel unit, a housing, a driving unit, a plurality of right driving units and a plurality of left driving units. The housing includes a plurality of right drive accommodating grooves and a plurality of left drive accommodating grooves, the driving unit includes a ratchet ring facing the accommodating grooves, and each of the right driving units and the right driving units includes a ratchet arranged in the corresponding accommodating groove, an elastic member for engaging the pawl of the ratchet to the ratchet ring, and a switching member which is movable and is positioned in the housing, and drives the pawl to swing between the engagement position and disengagement position relative to the ratchet ring. Therefore, the left and right driving states of the ratchet wheel hub can be switched only by operating the switching members of the right driving units and the left driving units.

Description

technical field [0001] The invention relates to a hub, in particular to a ratchet hub which is easy to switch between left and right driving states. Background technique [0002] Such as Figure 1 to Figure 4 The ratchet hub 10 shown has a spindle unit 11 , a housing 12 , a driving element 13 , a ratchet set 14 and an elastic element set 15 . [0003] The spindle unit 11 has a shaft 111 and several bearings 112 . [0004] The casing 12 is installed outside the spindle unit 11, and includes a peripheral wall 122 defining an inner hole 121, and several openings 123 and several accommodating grooves 124 formed in the peripheral wall 122, each accommodating groove 124 It respectively has a slot bottom 125 , and a right drive pivot portion 126 and a left drive pivot portion 127 connecting the slot bottom 125 and the opening 123 . [0005] The driving member 13 is installed outside the spindle unit 11, and includes a ratchet ring 131 extending into the inner hole 121, and a spro...

AI Technical Summary

Problems solved by technology

[0009] Although the ratchet hub 10 can be used in left and right driving, the ratchet group 14 and the elastic member group 15 that have been assembled in the accommodating groove 124 must be dismantled before they can be reassembled in the accommodating groove 124. Inside, there is the problem that it is inconvenient to change the left and right drive

[0010] Although the hub requested in the U.S. Patent No. 4,766,772 can directly switch between the left and right driving states without replacing the pawl and the elastic member, there are two sets of driving mechanisms, two sets of clutch mechanisms and two sets of switching mechanisms that must be installed. lead to problems with a more complex overall structure

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