Apparatus for closing off shafts

F - Mech Eng,Light,Heat,Weapons – 16 – C

Patent

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64/3

F16C 3/02 (2006.01) F16D 3/06 (2006.01) F16L 55/115 (2006.01)

Patent

CA 2040607

This invention concerns a device to plug (10) the end (4) of a hollow shaft (1) with interior grooves. The device (10) comprises a sleeve (11) which adapts in a watertight fashion to the bore (2) of the shaft (1) and comprises exterior grooves (14) that fit into the interior grooves of the shaft. The sleeve (11) is mounted on a locking-unlocking (10a) mechanism comprising a pin (15) imperviously mounted into the bore (16) of the sleeve (11), a control knob attached to the end of the pin and partially covering the end (4) of the hollow shaft (1) and an interlocking device (18) attached to the other end of the pin (15), capable of sliding along the interior grooves and locking itself onto the end of the interior grooves under the influence of a torsion spring (26) interposed between the sleeve (11) and the interlocking device (18). The pivoting of the interlocking device (18) is limited to between an unlocked position and a locked position.

La présente invention concerne un dispositif d'obturation (10) de la face d'extrémité (4) d'un arbre creux (1) à cannelures intérieures. Le dispositif (10) comporte un manchon (11) qui s'adapte de façon étanche à l'alésage (2) de l'arbre (1) et qui comporte des cannelures extérieures (14) coopérant avec les cannelures intérieures de l'arbre. Le manchon (11) est monté sur un ensemble de verrouillage-déverrouillage (10a) comportant une broche (15) montée étanche dans l'alésage (16) du manchon (11), un bouton de manoeuvre fixé à une extrémité de la broche et recouvrant partiellement la face d'extrémité (4) de l'arbre creux (1) et un organe de verrouillage (18) fixé à l'autre extrémité de la broche (15), susceptible de coulisser le long des cannelures intérieures et de se verrouiller à l'extrémité des cannelures intérieures sous l'action d'un ressort de torsion (26) interposé entre le manchon (11) et l'organe de verrouillage (18). Le pivotement de l'organe de verrouillage (18) est limité entre une position de déverrouillage et une position de verrouillage.

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