H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/304
H01H 3/02 (2006.01)
Patent
CA 1265565
ABSTRACT OF THE DISCLOSURE A actuation attachment includes a central slider formed at one end with a push button and at the opposite end with a holding piece for an actuator. The slider is inserted in a cylindrical sleeve so as to be movable in axial direction relative to the latter but engaging it for joint rotation. The sleeve is inserted in a cylindrical bore of a housing to move in axial direction and to rotate about its central axis. The slider is formed with an axially directed slot accommodating two locking elements in the form of hollow pins which project into corresponding holes formed in the sleeve. The locking pins are urged one from the other by a biasing spring. The cylindrical bore of the housing is formed with axially directed first and second guiding grooves for engaging the locking pins. The first and second guiding grooves are separated by an inclined stopping surface and a radially directed stopping surface. An inner spring is arranged between the sleeves and the slider and another outer spring is arranged between the slider and the housing. An actuation member or an electrical controlling device is slidably arranged in the housing between the holding member of the slider and the sleeve. The second guiding grooves are provided with sickle shaped run on surfaces to dis- engage the locking means from the radially directed stopping surfaces only upon turning the slider about its central axis. -1-
488962
Fetherstonhaugh & Co.
Square D. Starkstrom Gmbh
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