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US 5,871,335 AGranted
Twist-lock attachment system for a cooling fan and motor
AssigneeSiemens Electric Limited
InventorEric Raymond Bartlett
Life of this patent
Estimating the term…
Abstract
A cooling fan assembly (13) is attached to a motor (11) by a mating, "twist-lock" adaptor plate (30) having radial lugs (33), which engage a shouldered recess (23) in a corresponding hub (22A).
Claims16
A cooling fan and motor attachment system comprising:
- a cooling fan;
- a motor constructed and arranged to be coupled to said cooling fan;
- an adapter plate coupled to one of said motor and said cooling fan, said adapter plate having a plurality of circumferentially spaced, radially outwardly projecting lugs,
- a hub coupled to the other of said motor and said cooling fan, said hub having a front face, a generally radially-oriented sidewall, and a plurality of circumferentially spaced shoulders corresponding to each respective lug, said front face and said sidewall defining bounds of a recess in said hub, each of said shoulders being axially spaced from said front face and extending within said recess, each of said shoulders having a capturing surface generally opposing said front face,
- said capturing surfaces of said shoulders and said front face being constructed and arranged to capture said lugs therebetween upon generally axially-oriented insertion of said adapter plate into said recess and relative locking rotation of said adapter plate with respect to said hub to lock said cooling fan to said motor.
2 more elements
A cooling fan and motor system comprising:
- a motor;
- a cooling fan;
- an adapter plate, attached to one of the motor and cooling fan, having a plurality of radially symmetrically-oriented, outwardly projecting lugs;
- a hub, attached to the other of the motor and cooling fan, said hub having a front face, a generally radially-oriented sidewall, and a plurality of shoulders corresponding to each respective lug, said front face and said sidewall defining bounds of a recess in said hub, each of said shoulders being axially spaced from the front face and extending within said recess, each of said shoulders having a capturing surface directly opposing said front face, said capturing surfaces of said shoulders and said front face capturing said lugs therebetween upon generally axially-oriented insertion of the adapter plate into said recess and relative locking rotation of said adapter plate with respect to said hub to lock said cooling fan to said motor;
- and
- projecting detents disposed on and projecting from one of the adapter plate and hub and corresponding recesses on the other of the adapter plate and hub, which engage relative to each other upon relative locking rotation of the hub and adapter plate.
3 more elements
Dependencies are inferred from the claim text.