Control unit comprising electromagnets, particularly for actuating dobbies for weaving machines
AssigneeS.A. des Etablissements Staubli
InventorJean-Paul Froment
Life of this patent
Estimating the term…
Abstract
The present invention relates to a control unit comprising a series of electromagnets for actuating juxtaposed or superposed mobile armature members. A cover locked in an frame contains a series of cores maintained in position by abutment of coil supports and by a plate. The latter supports a printed circuit connected to the coils and to a cable. The frame cover assembly is filled with a mass of injected resin. The invention is particularly applicable to textile equipment (dobbies).
Claims3
An electromagnetic control unit for actuating mobile armature members to control a dobby for a weaving machine, the control unit comprising:
- an elongated frame of U-shaped cross section;
- a hollow cover for the frame, the cover having a face having two parallel series of paired core-receiving holes therethrough, and having an open base shaped to be received in the U-shaped frame and enclose it;
- p1 multiple cores, each having two arms extending outwardly through adjacent holes of the two series and having between the two arms a centering boss;
- a positioning plate lying across the open base of the cover and having a series of windows each receiving the centering boss of a core;
- a coil surrounding one arm of each core and having connections to its winding, the coils lying between the cover face and the positioning plate;
- a printed circuit board adjacent to the positioning plate and connected to the connections of the coils;
- a cable coupled to the connections of the circuit board and extending from the frame;
- and
- a synthetic resin filling the free space in the frame and the cover.
Dependencies are inferred from the claim text.