Abstract:
Ce dispositif comporte un tambour (42) destiné à être entraîné en rotation autour d'un axe central (B-B'), le tambour (42) définissant une enveloppe circonférentielle (50) d'enroulement de l'élément allongé autour de l'axe central (B-B'), l'élément allongé étant destiné à former au moins une spire autour de l'axe central (B-B') sur l'enveloppe circonférentielle (50). Il comprend un mécanisme (44) d'entraînement de la ou de chaque spire de l'élément allongé sur l'enveloppe circonférentielle (50). Le mécanisme d'entraînement (44) comporte au moins un ensemble (80) de déplacement de la spire suivant une direction de déplacement (D) formant un angle non nul avec l'axe local de la spire, pris au niveau d'une région d'appui de la spire sur l'ensemble de déplacement (80).
Abstract:
A device for pulling an elongate member includes a rotational motor having an output and a rotating drum connected to the output of said rotational motor. The device further includes a guide mechanism for guiding the resilient elongate element onto, around at least a portion of the circumference of, and off of, the rotating drum. When the rotational motor turns the rotating drum, the rotating drum thereby continuously pulls the resilient elongate element through the device.
Abstract:
A rope drum (120) for drawing and releasing a rope (110) under tensile stress. Support means (220) are arranged to provide a number of grip sections (512) for supporting the rope through the grip sections as a continuous spiral (310) surrounding the rotated drum part by at least two rounds so that, when the drum part is rotated, a number of grip sections move due to the guidance of the support means along the drum part depending on the rotation direction of the drum part towards the first end (320) of the drum part or towards the second end (330). The prevention means (210, 514) together with the support means restrict the movement of the grip sections supporting the rope on the drum part with regard to the drum part in the direction of the perimeter to a maximum that is defined by the mutual geometry of the prevention means and the support means.
Abstract:
The disclosure relates to an apparatus (1) for a sailing boat or motorboat (2) for hauling in anchor (4), and for pulling the boat (2) on a trailer (10), wherein one single motor (6) with motor shaft (14) can separately activate a hauling drum (5), via a single gear reduction box (12), which is selectably engageable, for an anchor cable (3) winch on one hand and a hauling drum (11) for the trailer cable (9) winch on the other hand.
Abstract:
A winching arrangement is disclosed for winching a cable comprising a winching frame; a capstan (11) for winding the cable onto; a drive motor (3) for driving the capstan; and a first clutch mechanism for disengaging the capstan from the clutch when the torsional load on the cable exceeds a first predetermined limit. Preferably, the first clutch mechanism (6) is located within the capstan and ideally the clutch mechanism is an adjustable cone clutch mechanism. The winching arrangement can further include a second adjustable clutch mechanism located adjacent the motor for providing secondary disengagement of the motor from the capstan when the cable exceeds a second predetermined limit. Further, a gear reducer (8) can be interconnected between the capstan and the drive motor. Preferably, the arrangement also includes a fixing arm (15, 18) for fixing the winch to an object wherein the cable, the capstan and the fixing arm are aligned substantially concentrically during operation.
Abstract:
L'invention concerne un dispositif pour la manoeuvre et le stockage d'un cordage, en particulier une aussière de navire. Ce dispositif comprend un tambour vertical (2) coopérant avec des moyens (3) pour sa manoeuvre en rotation. Ce tambour vertical (2) comprend un corps tubulaire (21 ) qui comporte deux surfaces opposées : - une surface extérieure (21 1 ), autour de laquelle ledit cordage est apte à être enroulé, et - une surface intérieure (212), délimitant au moins une partie inférieure (51 ) d'un passage vertical (5). Ce passage vertical (5) comporte deux extrémités opposées : - une extrémité inférieure (51 1 ) munie d'un orifice traversant qui s'étend au travers dudit corps tubulaire (21 ), et - une extrémité supérieure (522) associée à un système (4) pour le stockage dudit cordage et pour la manoeuvre en translation dudit cordage le long dudit passage vertical (5).
Abstract:
A powered rope ascender that supports a person or a load while ascending a vertical rope. The rope ascender has a motor driven capstan drum that engages the rope. A tension roller reacts with the tensioned rope to force a pinch roller to grip the rope against the capstan drum. A load limiting assembly releases the grip by the pinch roller when the load supported by the ascender exceeds a predetermined amount. A centrifugal clutch reduces starting torque required by the motor and the outer drum of the centrifugal clutch interacts with a brake to hold position on the rope. Hand controls provide a freewheeling, a braking and an ascending mode of operation. A harmonic drive provides speed reduction from the motor to the capstan drum. The powered rope ascender can be threaded on the rope without access to the rope end.
Abstract:
A stage installation for vertical movement of multiple stage elements (10) has a computer controlled winch assembly comprising a support member (40a) having a channel (42), a platform (48) adjacent the support member (40a), electrical control and electrical power raceways (46, 44) in the channel (42), and a multiplicity of winches (50) supported on the platform (48). The winches (50) include a housing (52), a bidirectional servomotor (58), a rotating drum (54) driven by the motor (58) in either direction to haul or pay out cables (30) operatively connected to the stage elements (10). Connectors (60, 62) are coupled to the electrical power and electrical control raceways (44, 46), and a remote computer terminal (80) transmits signals to the winches (50) to initiate and terminate operation of the servomotor (58).
Abstract:
The invention relates to a driving drum drive, comprising a driving drum (2) having a device arranged thereon for forming an axially centring movement of a loop of a cable (4) running axially from the driving drum (2), at least one full wrap of the cable (4) that produces a frictional connection between the cable (4) and the driving drum circumference being provided. The problem addressed by the inventions is that of providing a driving drum drive that allows endless operation during use for transmitting mechanical energy over relatively large distances by means of a simple and operationally safe construction having a single driving drum for driving and output. The problem is solved by a device for forming the centring axial transverse movement of the loop of the cable (4) running from the driving drum (2), which driving drum (2) has a guide tunnel (34), which guide tunnel (34) is arranged in the region of the loop (9) and axially guides the loop (9) at least partially on the circumference and over at least some of the cross section of the cable (4) and prevents the driving drum (2) from running away.
Abstract:
Eine Spillscheibe für eine Spiliwinde weist einen Ringnutquerschnitt (8) für die Aufnahme mehrerer Windungen (9) eines Zugseils (7) auf. Der Ringnutquerschnitt (8) der Spillscheibe ist mit einer geraden Lauffläche (15) und abgerundeten Flanken (16, 17) versehen, und so bemessen, dass er eine bestimmte Anzahl von plan nebeneinanderliegenden Seilwindungen (9) enthält. Auf diese Weise wird erreicht, dass die um die Spillscheibe gewickelten Seilwindungen ohne gegenseitigen Druck verschleissfrei arbeiten können, so dass zugleich die volle Zugkraft des Seils als Traktionsenergie verfügbar ist.