Motor support for orbital polisher
AssigneeBlack & Decker Inc.
InventorsRichard C. Nickels, Jr., David M. Rider
Life of this patent
Estimating the term…
Abstract
In the construction of a motor driven tool, a bucket-shaped housing having upper and lower parts, a preassembly of a motor support, and a motor assembly including an armature and stator mounted on the support and in coaxial relation to the housing parts, and bearing means for supporting the opposite ends of the armature, respectively, in the motor support and in one said housing part, the armature being fixedly connected to the support and the stator being magnetically retained to the armature.
Claims16
A power tool including a motor having an armature and motor shaft rotationally supported at its opposite ends by a pair of motor bearings and electrical circuit means for controlling the application of power to the motor;
- the power tool further comprising:
- a substantially bucket-shaped housing member forming an interior and defining a longitudinal axis and including an integrally formed first end cap located at one axial end thereof for mounting one of said pair of motor bearings for rotationally supporting one end of the motor shaft along said axis such that the motor is substantially contained within said interior, and further including an integrally formed support surface proximate the other axial end thereof;
- and
- a support member including an integrally formed second end cap for mounting the other of said pair of motor bearings for rotationally supporting the other end of the motor shaft along said axis, said support member being mounted to said support surface substantially transversely to said axis and including means for mounting said electrical circuit means thereon.
The method of assembling a power tool including a motor having an armature and a motor shaft, a pair of motor bearings, electrical circuit means for controlling the application of power to the motor, a substantially bucket-shaped housing member forming an interior and defining a longitudinal axis and including a first end cap at one axial end thereof and a peripheral support surface proximate the other axial end thereof, and a substantially planar support member having a second end cap and mounting means adapted for receiving said electrical circuit means;
- the method comprising the steps of:
- a) mounting one of said motor bearings in said second end cap of said support member,
- b) inserting one end of said motor shaft into said one motor bearing so that said motor shaft is rotatably secured at said one end to said support member,
- c) mounting said electrical circuit means onto said mounting means on said support member,
- d) mounting the other of said motor bearings in said first end cap of said housing member,
- e) inserting the motor into the interior of said housing member,
- f) mounting said support member to the peripheral support surface of said housing member, and PG,14
- g) inserting the other end of said motor shaft into said other motor bearing such that said motor shaft is rotationally supported at one axial end by said first end cap of said housing member and at its other axial end by said second end cap of said support member.
Dependencies are inferred from the claim text.