Abstract A miniature motor for moving toys comprising a rotor, a shaft on said rotor is fixedly mounted for rotation therewith, a rectifier element fixedly mounted on said rotor shaft, a pair of supporting discs made of permanent magnets for rotatably supporting said rotor shaft, a pair of semicircle section magnetic cover members surrounding said rotor in a peripherally spaced relation thereto and held in position on said supporting discs by the magnetic attraction force of said supporting discs and mechanical means, said cover members having mating notches at the adjacent side edges to define an opening, a brush holder fitted in said opening and having a pair of brushes to pinch said rectifier element therebetween an adhesive tape applied around the periphery of said pair of cover members to secure the cover members together.
In a miniature motor for moving toys having a rotor with a rotary shaft on which said rotor is mounted for movement therewith, a pair of spaced supporting discs made of permanent magnets and rotatably supporting said rotor shaft at the opposite ends thereof, a pair of semicircular cross section cover members mating at their adjacent side edges and held in position on said pair of supporting discs by the attractive force of the discs and mechanical means for surrounding said rotor in peripherally spaced relation thereto, a rectifier element mounted on said rotor shaft, a pair of brushes which pinch said rectifier element therebetween and adhesive tape applied around the periphery of said pair of cover members for securing the cover members together, the improvement therein wherein said mechanical means comprises two pairs of notches each pair of which are provided in the periphery of each of said pair of supporting discs in diametrically opposite and symmetrical positions with respect to the center of the associated disc, two pairs of ears each pair of which are provided in the periphery of each of said pair of supporting discs in diametrically opposite and symmetrical positions with respect to the center of the associated disc and between said pair of notches, two pairs of inner projections each of which are provided at adjacent end edges of said pair of covers members and adapted to be received in the notches in the associated supporting disc and two pairs of openings each pair of which are defined by mating notches provided at the lower corners of said pair of cover members.
Claim 2
Dependent Claim
268 words
In a miniature motor for moving toys having a rotor with a rotary shaft on which said rotor is mounted for movement therewith, a pair of spaced supporting discs made of permanent magnets and rotatably supporting said rotor shaft at the opposite ends thereof, a pair of semicircular cross section cover members mating at their adjacent side edges and held in position on said pair of supporting discs by the attractive force of the discs and mechanical means for surrounding said rotor in peripherally spaced relation thereto, a rectifier element mounted on said rotor shaft, a pair of brushes which pinch said rectifier element therebetween and adhesive tape applied around the periphery of said pair of cover members for securing the cover members together, the improvement therein wherein said mechanical means comprises two pairs of notches each pair of which are provided in the periphery of each of said pair of supporting discs in diametrically opposite and symmetrical positions with respect to the center of the associated disc, two pairs of ears each pair of which are provided in the periphery of each of said pair of supporting discs in diametrically opposite and symmetrical positions with respect to the center of the associated disc and between said pair of notches, two pairs of inner projections each of which are provided at adjacent end edges of said pair of covers members and adapted to be received in the notches in the associated supporting disc and two pairs of openings each pair of which are defined by mating notches provided at the lower corners of said pair of cover members.
Claim 3
Dependent Claim
79 words
A miniature motor for moving toys as set forth in claim 1, in which said pair of cover members are provided with mating notches at the adjacent side edges of the cover members between the opposite ends thereof to define an opening and said pair of brushes are supported by an arcuate brush holder having a pair of notches at the opposite ends fitted on the mating opposite ends edges of said opening defined by the side edge notches.
Claim 4
Dependent Claim
41 words
A miniature motor for moving toys as set forth in claim 1, in which said pair of supporting disc have center bores in which bearings are freely received and said opposite ends of the rotor shaft are journaled in said bearings.