US 2011/0041635 A1Published application

Transmission

AssigneeChih-Siang CHEN

InventorsPing-Sheng LIU, Chih-Siang CHEN

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Abstract

A transmission includes a body, a transferring gear set, a driving gear set, a reversible gear set, a unidirectional gear set, a wedge and a switcher. The body is mounted on a wheel. The transferring gear set includes a driving shaft and a transferring gear. The driving gear set includes a wheel hub and a driving gear. The reversible gear set includes a reversible sleeve and a reversible gear. The unidirectional gear set includes a follower gear, a unidirectional clutch and a unidirectional sleeve. The unidirectional clutch engages the reversible sleeve to the follower gear when the reversible sleeve is rotated in a first direction and disengages the reversible sleeve from the follower gear when the reversible sleeve is rotated in a second direction. The switcher moves the wedge to engage the recesses of the unidirectional sleeve and the reversible sleeve.

Claims10

Dependent claims

A transmission, comprising:

a body mounted on a wheel;
a transferring gear set comprising:
a driving shaft pivotally connected to the body;
and
a transferring gear connected to the driving shaft;
a driving gear set comprising:
a wheel hub pivotally connected to the driving shaft of the transferring gear set for driving the wheel;
and
a driving gear mounted on the wheel hub;
a reversible gear set comprising:
a reversible sleeve having a plurality of recesses therein and pivotally connected to the body;
and
a reversible gear connected to the reversible sleeve and meshing is with the transferring gear of the transferring gear set;
a unidirectional gear set comprising:
a follower gear meshing with the driving gear of the driving gear set;
a unidirectional clutch for engaging the reversible sleeve of the reversible gear set to the follower gear when the reversible sleeve of the reversible gear set is rotated in a first direction I and disengaging the reversible sleeve of the reversible gear set from the follower gear when the reversible sleeve of the reversible gear set is rotated in a second direction;
and
a unidirectional sleeve connected to the follower gear and having a plurality of recesses therein;
a wedge;
and
a switcher to move the wedge to engage the recesses of the unidirectional sleeve and the recesses of the reversible sleeve.

18 more elements

A transmission, comprising:

a body having a hollow axle;
a transferring gear set comprising:
a driving shaft pivotally connected to the body;
and
a transferring gear connected to the driving shaft;
a driving gear set comprising:
a wheel hub pivotally connected to the driving shaft of the transferring gear set;
and
a driving gear mounted on the wheel hub;
a reversible gear set comprising:
a reversible sleeve having a plurality of recesses therein and pivotally connected to the hollow axle of the body;
and
a reversible gear meshing with the transferring gear of the transferring gear set;
a unidirectional gear set comprising:
a follower gear meshing with the driving gear of the driving gear set;
a unidirectional clutch for engaging the reversible sleeve of the reversible gear set to the follower gear when the reversible sleeve of the reversible gear set is rotated in a first direction and disengaging the reversible sleeve of the reversible gear set from the follower gear when the reversible sleeve of the reversible gear set is rotated in a second direction;
and
a unidirectional sleeve connected to the follower gear and having a plurality of recesses therein;
and
a switcher comprising:
a rod passing through the hollow axle of the body;
a wedge;
and
at least one spring applying resilience to the wedge and cooperating with the rod to move the wedge to engage the recesses of the unidirectional sleeve and the recesses of the reversible sleeve.

21 more elements

Dependencies are inferred from the claim text.