Reel assembly

B - Operations – Transporting – 66 – D

Patent

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Details

B66D 1/74 (2006.01)

Patent

CA 2306392

A capstan winch (10) includes a reel assembly comprising a reel (12), which rotates, and two generally annular floating flanges (20) which are supported so that the planes in which they rotate converge towards one another, which has the effect of creating an apparent axial movement of the flanges with respect to the reel as they rotate together. The cylindrical surface of the reel (12) is provided with alternating lands (19) and grooves (18) and the floating flanges (20) have formed on them alternating inclined faces (26 and 24) which correspond with lands (19) and grooves (18). The inclined faces (24 and 26) are angled so that the faces (26) which correspond to each land (19) on the reel (12) are generally parallel to one another. The inclined faces (24) which correspond to each groove (18) converge. Consequently, substantial lateral forces are exerted on a cable being wound onto the reel (12) only when the cable overlies the grooves (18) and frictional forces on the cable are minimised.

Un treuil de halage à axe vertical (10) comprend un ensemble enrouleur constitué d'un enrouleur (12) conçu pour pivoter, et de deux brides flottantes (20) généralement annulaires, lesquelles sont appuyées de sorte que les plans dans lesquels elles pivotent convergent l'un vers l'autre, ce qui crée un déplacement axial apparent de ces brides par rapport audit enrouleur, lorsque ces brides pivotent simultanément. La surface cylindrique de l'enrouleur (12) présente une alternance de parties saillantes (19) et de parties creuses (18), les brides flottantes (20) présentant elles-mêmes une alternance de faces inclinées (24 et 26) correspondant à ces parties saillantes (19) et à ces parties creuses (18). Ces faces inclinées (24 et 26) sont placées en angle, de sorte que les faces (26) correspondant à chaque partie saillante (19) de l'enrouleur (12) sont généralement parallèles les unes aux autres, les faces inclinées (24) correspondant à chaque partie creuse (18) convergeant les unes vers les autres. Des forces latérales considérables sont ainsi exercées sur un câble enroulé sur ledit enrouleur (12) lorsque ce câble chevauche lesdites parties creuses (18), les forces de frottement exercées sur ce câble étant par ailleurs minimisées.

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