An inner face of a flange of a winch drum is provided with a rope guide part that guides a rope portion in a higher layer such that the rope portion in the higher layer crosses a rope portion in a lower layer in a first crossing section, and a ridge line of the rope guide part has a shape that is displaced in a winding rotation direction with respect to a baseline passing through a rotation axis and an inner edge of the ridge line as proceeding from the inner edge to an outer edge.

An inner face of a flange of a winch drum is provided with a rope guide part that guides a rope portion in a higher layer such that the rope portion in the higher layer crosses a rope portion in a lower layer in a first crossing section, and a ridge line of the rope guide part has a shape that is displaced in a winding rotation direction with respect to a baseline passing through a rotation axis and an inner edge of the ridge line as proceeding from the inner edge to an outer edge.

The present invention relates generally to rope drives working with high-strength fiber ropes such as crane hoists, boom adjustment gear, trolley traveling gear, etc. The invention in this respect in particular applies to hoist drums for the rope hoist winch of such a fiber rope drive having a drum jacket body which is provided with grooving at the peripheral side and having two guard plates adjacent to the drum jacket body at the end sides. The invention further relates to a rope pulley for such a fiber rope drive having a rotatably supported pulley body whose jacket surface has at least one rope groove. In accordance with the invention, the rope grooves have a flat-pressed, round groove contour which differs from the circular and which has a larger radius of curvature in the region of the groove base than in the region of the groove flanks adjacent thereto.

The present invention relates generally to rope drives working with high-strength fiber ropes such as crane hoists, boom adjustment gear, trolley traveling gear, etc. The invention in this respect in particular applies to hoist drums for the rope hoist winch of such a fiber rope drive having a drum jacket body which is provided with grooving at the peripheral side and having two guard plates adjacent to the drum jacket body at the end sides. The invention further relates to a rope pulley for such a fiber rope drive having a rotatably supported pulley body whose jacket surface has at least one rope groove. In accordance with the invention, the rope grooves have a flat-pressed, round groove contour which differs from the circular and which has a larger radius of curvature in the region of the groove base than in the region of the groove flanks adjacent thereto.

A winch assembly is described and shown herein. The winch assembly may include a first housing member having a first retaining member formed therein and a second housing member having a second retaining member formed therein, the second housing member secured to the first housing member forming a winch housing. The winch assembly may further include a drive system generally positioned within the winch housing, and a winch drum operatively coupled with the drive system and rotationally secured with the first and second retaining members.

A handling device includes a winch comprising a frame, intended to be attached to a structure of the surface vessel and a first drum capable of turning relative to the frame about a first rotation axis and an assembly comprising at least one second drum which surrounds the first drum and is capable of turning relative to the frame about a second rotation axis substantially parallel to the first rotation axis, the winch being capable of being in a decoupled state wherein the first drum and the second drum are rotationally decoupled about the first rotation axis and the second rotation axis so as to allow a traction cable to be wound around the first drum during a first winding step wherein the first drum is rotated about the first axis, the second drum being capable of being in an open state wherein the second drum has a receiving opening that a towed body is capable of passing through in order to enter the interior of the space that surrounds the first drum and that is surrounded by the second drum, the winch being capable of being in a coupled state wherein the first drum and the second drum are rotationally coupled about the second rotation axis so as to allow a flexible elongate body to be wound around the second rotation axis during a second winding step wherein the second drum is rotated about the second axis.

A device for storing and dispensing line for mooring a boat to a dock includes a user interface, an auto-retracting reel assembly, and optionally, a conduit connecting the user interface to the reel assembly. The user interface comprises a canister mounted on a gunwale, or the like, for storing the distal, looped end of a mooring line, a top lid that slides horizontally between an open and closed position, a rail support engaged by the top lid, and a bottom lid having a hole defined therein. The extended mooring line may be locked into place by frictional engagement between the spring loaded top lid and the rail support. To retract the mooring line, a user may open the top lid of the user interface for automated retraction, winding around the reel, until the stopping collar prevents the distal, looped end of the mooring line from passing therethrough.

A device for storing and dispensing line for mooring a boat to a dock includes a user interface, an auto-retracting reel assembly, and optionally, a conduit connecting the user interface to the reel assembly. The user interface comprises a canister mounted on a gunwale, or the like, for storing the distal, looped end of a mooring line, a top lid that slides horizontally between an open and closed position, a rail support engaged by the top lid, and a bottom lid having a hole defined therein. The extended mooring line may be locked into place by frictional engagement between the spring loaded top lid and the rail support. To retract the mooring line, a user may open the top lid of the user interface for automated retraction, winding around the reel, until the stopping collar prevents the distal, looped end of the mooring line from passing therethrough.

A winch drum tension isolation system includes a winch drum having an outwardly extending flange. The flange includes a plurality of holes spaced along the flange. The winch drum tension isolation system also includes a locking mechanism positioned proximate the winch drum. The locking mechanism includes a locking member engageable with the flange, the locking member movable between a first position, in which the locking member is received in a first one of the plurality of holes to prevent rotation of the winch drum, and a second position, in which the locking member is spaced apart from the flange to permit rotation of the winch drum. The winch drum tension isolation system also includes a safety release mechanism having a release member that is selectively engageable with a second one of the plurality of holes to permit removal of the locking member.

A winch drum tension isolation system includes a winch drum having an outwardly extending flange. The flange includes a plurality of holes spaced along the flange. The winch drum tension isolation system also includes a locking mechanism positioned proximate the winch drum. The locking mechanism includes a locking member engageable with the flange, the locking member movable between a first position, in which the locking member is received in a first one of the plurality of holes to prevent rotation of the winch drum, and a second position, in which the locking member is spaced apart from the flange to permit rotation of the winch drum. The winch drum tension isolation system also includes a safety release mechanism having a release member that is selectively engageable with a second one of the plurality of holes to permit removal of the locking member.