One-piece support and end cover structure for electric motors

DETAILED DESCRIPTION What is claimed: 1.
A combined support and end cover structure for dc motors with a commutator at one end and permanent magnet type stator pole pieces, comprising: a first element embodied substantially in the form of a disk and constituting a cover for the end of the electric motor occupied by the commutator, the internal face of which affords a first socket providing a journal bearing for the shaft of the motor; a plurality of hollow holders associated with the internal face of the first element near to the first socket, each provided with at least one lateral slot and accommodating a respective brush contact; a plurality of pins, issuing one alongside each hollow holder from the internal face of the firs element and serving as anchors for relative tension springs against which the single brush contacts are loaded; a plurality of posts serving to support the permanent magnet pole pieces of the motor, projecting perpendicularly from points equally spaced around the periphery of the first element and fashioned with a longitudinal groove on either side; a plurality of radial fins each exhibiting a projection at one end, distributed around the periphery of the first element and occupying the spaces between successive posts in such a way as to provide stops against which the permanent magnet pole pieces are positioned.
2.
A structure as in claim 1, wherein the first element further comprises an annular second socket that is disposed coaxial with the first socket and freely accommodates the outermost end of the commutator.
3.
A structure as in claim 1, comprising a first element the internal face of which affords a first socket providing a journal bearing for the shaft of the motor and an annular second socket coaxial with the first socket and freely accommodating the outermost end of the commutator, wherein the bases of the two sockets are totally enclosed.
4.
A structure as in claim 1, wherein the posts are arranged in pairs and positioned at identical angular distance one from the next around the periphery with the two posts of each pair spaced marginally apart