Electrical rotating actuator for forming a weaving loom shed
AssigneeStaubli Faverges
InventorsDominique Braun, Pierre Bourgeaux, Patrick Iltis
Life of this patent
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Abstract
An electrical rotating apparatus for controlling a harness cord associated with the shed of a weaving loom which includes an actuator including a rotor and a stator. The rotor is formed of at least two permanent magnets which are mounted within a tube so as to be spaced axially with respect to one another and wherein a plurality of stator elements are also provided offset axially relative to an axis of rotation of the rotor such that each of the plurality of rotors corresponds with a separate one of the plurality of stators. The polarities of one or the other of the permanent magnets or the stator elements are offset angularly relative to the axis of rotation.
Claims19
An electrical apparatus for imparting motion to a harness cord of a weaving loom, the apparatus comprising:
- an electrical actuator including a rotor defining an axis of rotation and a stator,
- said rotor including a hollow tube in which a plurality of permanent magnets each having opposite poles are mounted in generally axially spaced relationship with respect to one another along said axis of rotation,
- said plurality of permanent magnets being polarized alone a diametral direction with respect to said tube,
- said stator including a plurality of stator elements which are axially spaced from one another relative to said axis of rotation and each stator defining a separate air gap, each of said permanent magnets being disposed in said air gap of an adjacent stator,
- means adapted to connect said electrical actuator to said harness cord,
- said plurality of stator elements being aligned with respect to one another relative to said axis of rotation, and
- each of said plurality of permanent magnets are angularly offset with respect to one another about said axis of rotation by between approximately 60.degree. to approximately 150.degree..
A weaving loom including a weaving system comprising:
- an electrical actuator for imparting motion to a harness cord,
- said electrical actuator including a rotor defining an axis of rotation and a stator,
- said rotor including a hollow tube in which a plurality of permanent magnets each having opposite poles are mounted in generally axially spaced relationship with respect to one another along said axis of rotation,
- said plurality of permanent magnets being polarized along a diametrical direction with respect to said tube,
- said stator including a plurality of stator elements which are axially spaced from one another relative to said axis of rotation and each stator defining a separate air gap, each of said permanent magnets being disposed in said air gap of an adjacent stator,
- and means adapted for connecting said electrical actuator to said harness cord.
An electrical apparatus for imparting motion to a harness cord of a weaving loom, the apparatus comprising:
- an electrical actuator including a rotor defining an axis of rotation and a stator,
- said rotor including a hollow tube in which a plurality of permanent magnets each having opposite poles are mounted in generally axially spaced relationship with respect to one another along said axis of rotation,
- said plurality of permanent magnets being polarized along a diametral direction with respect to said tube,
- said stator including a plurality of stator elements which are axially spaced from one another relative to said axis of rotation and each stator defining a separate air gap, each of said plurality of permanent magnets being disposed in said air gap of an adjacent stator,
- means adapted to connect said electrical actuator to said harness cord, and
- said plurality of permanent magnets being generally angularly aligned relative to one another with respect to said axis of rotation and said plurality of stator elements being angularly offset with respect to one another relative to said axis of rotation.
Dependencies are inferred from the claim text.