Abstract: An auxiliary steering gear for a carrier comprising; a carrier body incorporating a main wheel, a caster wheel device including a sub wheel support device which connects a sub wheel to the carrier body while supporting the sub wheel so as to be freely rotatable about a horizontal axle and a vertical shaft, an inclining device for enabling inclining of the sub wheel in a transverse direction with respect to a direction of travel of the carrier body, and a remote operation device for remote operation of the inclining device, wherein the inclining device comprises an incline support device for inclinably connecting the caster wheel device to the carrier body by way of an incline support shaft which extends in the direction of travel of the carrier body, and a gear device for transmitting an incline drive force to incline the caster wheel device, and the gear device is set with a large gear ratio for reducing a reaction force due to external forces acting on the sub wheel, and the remote operation device is for r

Abstract: Discloses an electromechanical device for changing the gear ratio of a variable speed gear mounted to the hub of the rear wheel of a bicycle. The device consists of a changeover switch section to be mounted to the steering handle of the bicycle and an essential section to be coupled with the variable speed gear so as to operate the gear, said essential section includes a motor, gear means to be operated by said motor, and an electric circuit for connecting said motor to a power source. The electric circuit controls the motor according to the operation of the change-over switch and also controls the operation of the variable speed gear so that the gear ratio may be changed.