Differential structure of remotely controlled toy car

Details Differential structure of remotely controlled toy car Differential structure of remotely controlled toy car

1998-06-29

1999-10-05

Hafer, Robert A.

Amusement devices: toys

Rolling or tumbling

Including intrinsic motive power means for propulsion

446462, 475249, A63H 2900

Patent

active

059613688

ABSTRACT:
A differential structure of remotely controlled toy car, including a housing, a gear set installed in the housing and a left and a right shafts the ends of which extend out of two sides of the housing for connecting with wheel shafts. Each of the left and right shafts has a front end formed with spiral teeth meshing with two upright spiral gears on two sides. Each two adjacent left and right upright spiral gears mesh with one transverse spiral gear therebetween. During turning, by means of the engagement between the upright, transverse and upright sprial gears, a good differential modulation is achieved between the left and right shafts. Also, a sufficient torque is provided to prevent the wheels from slipping.

REFERENCES:
patent: 1407703 (1922-02-01), Moir
patent: 1756939 (1930-05-01), Crawford
patent: 1948095 (1934-02-01), Boynton
patent: 4712449 (1987-12-01), Avny
patent: 4762022 (1988-08-01), Johnshoy
patent: 4916978 (1990-04-01), Razelli et al.

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