(19)
(11) EP 0 045 546 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.02.1982 Bulletin 1982/07

(43) Date of publication A2:
10.02.1982 Bulletin 1982/06

(21) Application number: 81200826

(22) Date of filing: 20.07.1981
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 31.07.1980 IT 2384480

(71) Applicant: Ansaldo Componenti S.p.A. D.G.V.
 ()

(72) Inventors:
  • Piccarreta, Luigi
     ()
  • Neonati, Franco
     ()

   


(54) Device for controlling the rotation of a shaft through a preselected angle


(57) A device for controlling the rotation of shaft (12) through a preselected angle narrower than 360°. On the shaft there are mounted two fresh-wheels (10,11) one at least of which is actuatable by a lever (18) to which a predominantly rectilinear reciprocation is impressed. The connection between the lever (18) and the outer ring (17) of the free-wheel is embodied by a pin (25) integral with the ring and engaged by a slot (26) formed in the vicinity of the free end of the lever. The slope of the slot is such that in the thrust stroke of the lever it causes the lever end to approach a cylindrical race (29) of a disc (28) keyed to the shaft (12) beside the free wheel. In a determined position this race is cut away by a hollow space (30) so that when the lever end arrives in registry with the hollow space, it can be depressed and thus it prevents the drive transfer for the free-wheel ring.






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