Apparatus for automatically sealing an articulated chute

Details Apparatus for automatically sealing an articulated chute Apparatus for automatically sealing an articulated chute

B - Operations, Transporting

28

C

B28C 7/16 (2006.01) B28C 5/42 (2006.01) B60P 3/16 (2006.01)

Patent

CA 2226032

A mechanical device for automatically positioning a closure plate for sealing the opening created by the folding of adjacent segments of an articulated chute to thereby prevent undesired discharge or leakage from the chute is provided. The device, which is particularly useful on cement trucks, includes a closure plate rotatably connected to one segment of the chute and disposed to articulate upon an adjacent segment of the chute so that the closure plate seals the opening when the chute is in a folded configuration and, when the segments are unfolded to deliver a charge, rotates to a position clear of the discharge path. The device also includes means for sealably biasing the closure plate toward the opening when the segments are folded and for biasing the closure plate away from the discharge path when the segments are in an unfolded position.

Appareil mécanique permettant de placer automatiquement une plaque de fermeture en vue de sceller l'ouverture créée par le repliement des segments adjacents d'une glissière articulée afin d'empêcher tout déversement ou toute fuite à partir de cette glissière. L'appareil, qui est particulièrement utile à bord de bétonnières, comprend une plaque de fermeture raccordée de façon non permanente à un segment adjacent de la glissière de façon à ce que la plaque puisse sceller l'ouverture de la glissière lorsque celle-ci est repliée et, lorsque les segments sont déployés pour permettre de déverser une charge, la plaque tourne de façon à dégager le passage. L'appareil comprend également un dispositif qui ramène de façon étanche la plaque de fermeture vers l'ouverture lorsque les segments sont repliés et qui éloigne cette plaque du passage de déversement lorsque les segments sont en position déployée.

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