Hub mechanism for self-propelling type light vehicle

Claim 1

A hub mechanism for a self-propelling type light vehicle provided with: a hub shaft secured to a main body of the vehicle; a pair of right and left drivers rotatably carried by said hub shaft and independently rotatable in the directions for forward and backward movements of the vehicle when actuated by the driving force transmitted from a driving force generating source; a hub shell rotatably carried by said drivers; a pair of right and left one-way clutches for forward movement to transmit rotations of said drivers in the forward movement direction to said hub shell respectively and another pair of right and left one-way clutches for backward movement to transmit rotations of said drivers in the backward movement direction to said hub shell respectively, the one-way clutches each being composed of ratchet gears formed on the inner periphery of the hub shell and of at least a ratchet pawl provided for the driver; and releasing members to release the rotation transmitting actions of said one-way clutches for forward and backward movement individually or collectively, said releasing members for releasing the rotation-transmitting action of the one-way clutches being sliders slidably fitted onto the hub shaft and a control over the position of the sliders adapts diametrally large parts formed on the outer periphery of the sliders to tilt the ratchet pawl selectively releasing engagement between the ratchet pawl and the ratchet gear.