Abstract: A mobile power pack includes a cover over a guide track which includes first, second, third, and fourth turning points. A sliding block defines a sliding groove to receive a ball, and the slotted ball interacts with the guide track. An elastic element is connected to the sliding block. When a cable is pulled out, the sliding block slides from the first turning point to the second turning point. When the pull on the cable is released, the elastic element restores to cause the sliding block to move until the ball reaches the third turning point, to lock the cable in position. When the cable is pulled and released, the sliding block slides until the ball reaches the fourth turning point, allowing the cable to be retracted into the body of the power pack.

Abstract: An electrically powered mining vehicle including a frame rollingly supported on a surface for movement over the surface. An electric motor is coupled to the frame for proving power to the vehicle. A cable is electrically coupled to the electric motor for supplying electricity thereto and a cable management system is coupled to the frame and arranged to receive and payout the cable as the vehicle moves over the surface. A sheave bracket is coupled to the frame and arranged to direct the cable into the cable management system and includes a lower plate arranged substantially horizontally, a plurality of vertical rollers that are coupled to the lower plate and are arranged to guide the cable into the cable management system, and a horizontal roller that is coupled to the lower plate and arranged to elevate the cable above the lower plate.

Abstract: An apparatus includes a robot arm, an electrical power cord, a motor-driven cable reel, an end effector, and at least one sensor. The robot arm has a proximal end and a distal end, and is configured to move in response to one or more electrical signals. The electrical power cord extends through the robot arm from the proximal end to the distal end and has an electrical plug at an end thereof. The motor-driven cable reel dispenses and retracts the electrical power cord so as to control a length thereof. The end effector is disposed at the distal end of the robot arm, and is configured to selectively grasp and release the electrical plug. The sensor is disposed at the distal end of the robot arm, and is configured to produce sensor data for controlling the robot arm to dock the electrical plug into an electrical receptacle.

Abstract: A 360-degree freedom electric cord device system contains and manages automatic extension and retraction of an electric cord/cable supplying power to a push/pull-type electric machine, either self-propelled or not, for intended displacement or steering on a surface by a user. The 360-degree freedom electric cord device system, partly mounted on the electric machine, allows the power cord to clear obstacles on the surface and includes a self-retracting spool to automatically extend and rewind the power cord and continuously keeps physical tension therein, in a straight line and a natural position, during the displacement in any direction of the electric machine. With a ratchet mechanism, the device can also suitably be used independently of the machine as an electric retractable extension cord reel.

Abstract: The disclosure relates to a cable storage device for a charging cable of a rechargeable battery of an electric vehicle. The cable storage device includes a rotatable drum onto which the charging cable can be wound. The drum is mounted in a rotatable manner on a rotationally fixed shaft. The shaft includes an external thread, and the drum includes an internal thread which engages the external thread.

Abstract: The present invention provides a DC tool cable reel apparatus. The DC tool cable reel includes a cord reel assembly for supporting a DC tool, and a side plate assembly attached to the cord reel assembly. The DC tool cable reel further includes a bracket assembly, wherein the side plate assembly and cord reel assembly are rotatably mounted on the bracket assembly, and a control assembly having a control cable that is electrically connected to a DC tool.

Abstract: A mining vehicle includes electric components, devices or machines operating at alternating voltage and having a specific nominal voltage. Power is fed to the mining vehicle from an alternating current network with a specific voltage level. The mining vehicle further includes a transformer arranged to transform the voltage level of the alternating current network into the nominal voltage. When a voltage higher than the nominal voltage is fed to the transformer, the transformer lowers this higher voltage to the nominal voltage. When a voltage lower than the nominal voltage is fed to the transformer, the transformer raises the voltage to the nominal voltage. The transformer is arranged to feed the electric component, device or machine both when a voltage lower than the nominal voltage is fed to the transformer and when a voltage higher than the nominal voltage is fed to the transformer.

Abstract: An electrically powered mining vehicle including a frame rollingly supported on a surface for movement over the surface. An electric motor is coupled to the frame for proving power to the vehicle. A cable is electrically coupled to the electric motor for supplying electricity thereto and a cable management system is coupled to the frame and arranged to receive and payout the cable as the vehicle moves over the surface. A sheave bracket is coupled to the frame and arranged to direct the cable into the cable management system and includes a lower plate arranged substantially horizontally, a plurality of vertical rollers that are coupled to the lower plate and are arranged to guide the cable into the cable management system, and a horizontal roller that is coupled to the lower plate and arranged to elevate the cable above the lower plate.

Abstract: A cord dispensing apparatus configured to dispense a length of cord including an L-shaped housing. The apparatus includes a first spool and a second spool disposed within a pair of guide channels within the housing. At least one of the first spool and the second spool includes a central shaft and a free spinning exterior surface, wherein the exterior surface of one of the spools is configured to freely rotate. The apparatus includes a bias member coupled to the first spool and positioned and oriented such that the bias member resists displacement of the first spool in the direction of the second spool. The apparatus includes a cord wound between both the first spool and the second spool, wherein a head of the cord extends outside of the housing. The apparatus includes a mounting structure coupled to the housing and configured to mount the housing to a surface.

Abstract: A spooling apparatus includes a spool for holding wire, the spool having a wire-retaining section and end plates, the end plates having one or more apertures. A conductive plate is positioned on an end plate of the spool opposite the wire-retaining section, and at least one conductive extension that extends through a corresponding aperture of the end plate such that the conductive extension is adjacent to the wire retaining section. Wire is spooled onto the wire-retaining section, at least a portion of the wire being uninsulated and in electrical contact with the conductive extensions of the conductive plate.

Abstract: In one embodiment, a cable reel axle shaft is configured with a mounting member and an encased rotary coupling. In particular, a first end of the axle shaft at the mounting member comprises a stationary radio frequency (RF) connection (e.g., a stator), and another end of the axle shaft comprises a rotating RF connection (e.g., a rotor). The rotor-stator break may then be located within the axle shaft, illustratively within the member. In this manner, a rotary coupling is extended and integrated into the center of the structural axle shaft for the cable reel, such that an RF connection may be maintained throughout adjustment of an accompanying variable-length RF antenna while efficiently handling the changes in required RF cable length. This provides numerous benefits over individual components, such as decreased size and weight, increased RF performance, greater survivability, and ease of operation (e.g., to spool and unspool an RF cable).

Abstract: A movable machine includes a frame, an electrical motor on the fame, a cable electrically connected to the motor and adapted to be connected to a source of power, and a sheave bracket assembly coupled to the frame. The sheave bracket assembly includes two mounting plates, two spaced apart sheaves rotatably mounted on the mounting plates, a hinged portion coupled to the mounting plates and pivotally coupled to the frame, and at least one biasing member located between the frame and the mounting plates that biases the mounting plates and sheaves toward a first position.

Abstract: A take-up reel assembly includes a frame, and a spindle, having an axis, which is coupled to the frame. A spool is positioned coaxially with the spindle and is able to rotate about the axis of the spindle. A flexible elongated member having a distal portion coupled to the spool and accessible from exterior of the spool, a middle portion positioned between the spindle and an inside surface of the spool, and a proximal portion coupled to the frame, has the middle portion of the elongated member wound as a helix about the spindle. The diameter of the helix changes with rotation of the spool.

Abstract: A rewindable electrical cable extension device includes a housing having first and second exit ports, and a cable having first and second ends defining opposing extremities of first and second contiguous cable sections having a common junction anchored to a rotating spool. The first end protrudes through the first exit port, and the second end is fixedly mounted in association with the second exit port. The first cable section is wound on a spool that is configured to rotate within the housing. The second cable section is wound in an opposite direction to the first section so that pulling on the first end unwinds and extracts the first cable section from the housing and uncoils the second cable section within the housing without rotating the second end of the cable.

Abstract: A power support system to an electric work machine includes: a cable holding unit configured to hold a cable that transmits power; a cable support pole configured to support the cable held by the cable holding unit at a position higher than a height of a vehicle that travels on a track that intersects at a position where the cable is disposed; and a travel device connected to the cable holding unit and the cable support pole and configured to perform a traveling operation so as to be able to move the cable holding unit and the cable support pole.

Abstract: A retractable cord reel is disclosed. The retractable cord reel may have a spool having a conductor carried thereon. The cord reel may also have a conductor lead coupled to a ratchet. The spool and the ratchet may be configured to make an electrical connection with each other.

Abstract: The invention relates to a device for connecting a vehicle operated by electrical current to a socket of a low-voltage alternating-current network, said device comprising a charging cable provided with a plug that fits the socket. The charging cable comprising the plug is arranged in a recess beneath a region of the bonnet of the vehicle that is true to the windscreen of the vehicle. The charging cable is at least indirectly connected to the vehicle in a fixed manner.

Abstract: A sheave bracket directs a trailing cable of a mining vehicle. The bracket is hingedly secured to the vehicle and includes a plate and a plurality of sheaves coupled to and extending from the plate. The sheaves are arranged to guide the cable. The sheave bracket also includes a force control mechanism movable between two positions to adjust tension in the cable. The force control mechanism dampens strain in the cable when the direction of the bracket is changed.

Abstract: A retractable cord reel is disclosed. The retractable cord reel may have a rotatable ferrule configured to adapt to an expandable coil having various trajectories within the cord reel. The retractable cord reel may have a splicing chamber filled with an epoxy or similar substance. Improved heat dissipation vents and fins and a thermal overload device may also be provided.

Abstract: A retraction apparatus comprising a support housing comprising one or more generally cylindrical spindles, and a retraction assembly mounted on each of the spindles is provided. The retraction assembly comprises a spring member, a generally cylindrical spool member, a retractable cable, a latch member, and a contact wheel member. The spring member is mounted on each of the spindles and affixed to the support housing. The spool member comprising serrated plates is affixed to the spring member. The retractable cable is circularly wound around a cylindrical section defined between the serrated plates of the spool member and extends outwardly from the support housing. The latch member, in engageable communication with the spool member, controls rotation of the spool member. The contact wheel member, in engageable communication with the spool member, via selective drive mechanisms, is rotated to rotate the spool member for retracting the retractable cable.

Abstract: A cauterizing system having a cauterizer tool for performing cauterization procedures, a cauterizer cord for carrying power to the cauterizer tool, a plug and a power cord for carrying power from the plug to the cauterizer cord, and a housing in which is mounted a mechanism for retracting and extending the cauterizer cord and the power cord.

Abstract: The cable retractor mainly contains a housing member, a coil spring, a rotary disc, a cable, and a winding disc. The rotary disc has a top circular indentation where the coil spring is accommodated in the indentation. A number of gear teeth are provided around the rotary disc and the winding disc. The winding disc has a central axle for the winding of the cable. The winding disc is positioned such that its teeth engage those of the rotary disc. A spiral track and a centrifugal track are provided on the rotary disc and the housing member, respectively. A positioning ball, together with the spiral track and the centrifugal track, provides a positioning function. The cable can be configured to be pulled in a single direction with a connector or multiple directors at a free end.

Abstract: A rewindable electrical cable extension device includes a housing having first and second exit ports, and a cable having first and second ends defining opposing extremities of first and second contiguous cable sections having a common junction anchored to a rotating spool. The first end protrudes through the first exit port, and the second end is fixedly mounted in association with the second exit port. The first cable section is wound on a spool that is configured to rotate within the housing. The second cable section is wound in an opposite direction to the first section so that pulling on the first end unwinds and extracts the first cable section from the housing and uncoils the second cable section within the housing without rotating the second end of the cable.

Abstract: A cable dispensing system is disclosed which includes multiple parallel coils of flexible non-insulated cables separated by multiple parallel insulating discs. The insulating discs have hubs to which the inner portions of the coils are fixedly coupled. The insulating discs and coils are disposed within a housing, which is rotatably coupled to the multiple parallel insulating discs and fixedly coupled to each outer portion of the multiple coils. The cables comprising the coils are routed from the inner portions through tunnels, which extend through the insulating discs in paths parallel to the axis of the parallel insulating discs. When cords attached to the housing are extended, the coils become wound, creating an electrical short between adjacent loops of the spiral coil. The shorter conductive path reduces the amount of energy that is lost as heat.

Abstract: A retractable cord reel is disclosed. The retractable cord reel may have a spool having a conductor carried thereon. The cord reel may also have a conductor lead coupled to a ratchet. The spool and the ratchet may be configured to make an electrical connection with each other.

Abstract: A reel assembly for an electrical cord distinct from the reel assembly includes a reel onto which the electrical cord can be spooled. A power connector configured to be mechanically and electrically coupled to the electrical cord is on the reel. The reel assembly is configured to be connected to a power source and to convey electrical power from the power source to the power connector. Two or more switches are connected in a parallel arrangement such that electrical currents flow through the switches in the same direction when the switches are in positions that permit electrical current flow through the switches. The switches are configured to shut off power from the power source to the power connector if a temperature of the reel assembly or of the electrical cord exceeds a threshold.

Abstract: A cable spool that has a body including a perimeter façade. An opening extends a thickness of the body. A track structure is formed with the perimeter façade to retain a cable. The opening is dimensioned to retain a terminal that connects to one end of the cable.

Abstract: A retractable cord reel is disclosed. The retractable cord reel may have a spool having a conductor carried thereon. The cord reel may also have a conductor lead coupled to a ratchet. The spool and the ratchet may be configured to make an electrical connection with each other.

Abstract: The cable dispensing system includes multiple parallel coils of flexible non-insulated cables separated by multiple parallel insulating discs. The insulating discs have hubs to which the inner portions of the coils are fixedly coupled. The insulating discs and coils are disposed within a housing, which is rotatably coupled to the multiple parallel insulating discs and fixedly coupled to each outer portion of the multiple coils. The cables comprising the coils are routed from the inner portions through tunnels, which extend through the insulating discs in paths parallel to the axis of the parallel insulating discs. When cords attached to the housing are extended, the coils become wound, creating an electrical short between adjacent loops of the spiral coil. The shorter conductive path reduces the amount of energy that is lost as heat.

Abstract: A cable retractor for paying out and retracting an electrical cable providing electrical power to an electrical load on a movable window element comprising a first assembly having a rotatable cable spool for receiving the electrical cable for winding on the cable spool, the first assembly including a first housing having an opening therein for paying out a first end of the electrical cable wound on the spool and at least one electrical terminal for connecting a second end of the electrical cable on the spool to one of an electrical power source or the electrical load; a second assembly having at least one electrical connection connected to the first end of the electrical cable and further being connected to the other one of the electrical load or the electrical power source; thereby to provide power to the electrical load from the electrical cable; one of the first and second assemblies being mounted for movement with the movable window element and the other of the first and second assemblies being fixed; and

Abstract: A reel device of diversion joint comprises: a casing, a wire holder, a telegraph line, a position plate and two L-shape anchors. The casing has a shaft and a restraint cavity. The wire holder is located on the shaft. The telegraph line is winded inside the wire holder. The position plate located on the wire holder has a guiding groove and at least one anchor recess. Two L-shape anchors located on the guiding groove are separated to two sides of the shaft, and each of the L-shape anchors has a slider protrusion to slide along the guiding groove. When the joint performs a linear motion, the wire holder drives the shaft to rotate and the slider protrusion slides along the guiding groove. When the linear motion stops, the joint is fixed on a position where the slider protrusion is anchored in the anchor recess.

Abstract: A maritime power supply system for supplying power to a docked ship, including a cable management system having at least one power cable assembly having, at a first end, a first connection arrangement for connecting the power cable assembly to the ship and, at an opposite second end, second a connection arrangement for connecting the power cable assembly to a dockside power supply; and a reel for winding the at least one power cable assembly thereon and for unwinding the at least one power cable assembly therefrom. According to an important aspect of the invention, the cable management system is arranged in a stackable power supply container placed on the ship.

Abstract: A cable retractor for paying out and retracting an electrical cable providing electrical power to an electrical load on a movable window element comprising a first assembly having a rotatable cable spool for receiving the electrical cable for winding on the cable spool, the first assembly including a first housing having an opening therein for paying out a first end of the electrical cable wound on the spool and at least one electrical terminal for connecting a second end of the electrical cable on the spool to one of an electrical power source or the electrical load; a second assembly having at least one electrical connection connected to the first end of the electrical cable and further being connected to the other one of the electrical load or the electrical power source; thereby to provide power to the electrical load from the electrical cable; one of the first and second assemblies being mounted for movement with the movable window element and the other of the first and second assemblies being fixed; and

Abstract: This invention relates to a system for automatically self-adjusting the height, length and direction of an electrical power cable connecting a movable machine, such as a crane, to a fixed electrical power supply. One end of the cable is wrapped around a reel which is arranged within a housing that is freely rotatable about a vertical axis. That end is connected to an electrical power source. The opposite end of the cable is connected to a machine which is moveable towards and away from, and around, the reel. A motor rotates the reel for winding up, and applying a tension upon, the cable so that the center portion of the cable, which extends between the reel and machine, is held relatively taut and generally horizontal. The central portion of the cable extends through a vertical slot in the housing so that its height, length and direction of extension towards the machine are automatically adjusted in response to the position of the moveable machine relative to the reel.

Abstract: A wire reel includes a slide disk that defined centrally an internal cavity for accommodating a coil spring and an upper cavity that receives a rotation-supporting wire in a regular wound condition and also forms a circumferential cavity separated from the internal cavity and receiving a primary wire to wind therearound. A circuit board is arranged and retained between the internal cavity and the upper cavity to electrically and mechanically connect opposing inner ends of the two wires. A housing composed of mated top and bottom covers defines an interior space to rotatably receive the slide disk. The rotation-supporting wire is fixed to an underside of the top cover and is thus fixed with respect to the rotation of the slide disk. A positioning mechanism is provided between the housing and the slide disk for providing a positioning engagement therebetween for each full turn of the slide disk.

Abstract: The cable dispensing system includes multiple parallel coils of flexible non-insulated cables separated by multiple parallel insulating discs. The insulating discs have hubs to which the inner portions of the coils are fixedly coupled. The insulating discs and coils are disposed within a housing, which is rotatably coupled to the multiple parallel insulating discs and fixedly coupled to each outer portion of the multiple coils. The cables comprising the coils are routed from the inner portions through tunnels, which extend through the insulating discs in paths parallel to the axis of the parallel insulating discs. When cords attached to the housing are extended, the coils become wound, creating an electrical short between adjacent loops of the spiral coil. The shorter conductive path reduces the amount of energy that is lost as heat.

Abstract: Various technologies and techniques are disclosed for providing a cord retraction mechanism for an input device. A subassembly having an input device, a cable, and a retraction mechanism is provided. The cable has first and second opposing ends, with the first end being operable to be coupled to a computing device, and the second end being operable to be coupled to the input device. The cable provides an electrical communication between the computing device and the input device. The cable has an extended configuration and a storage configuration. In the extended configuration, the cable extends outwardly from the computing device. In the storage configuration, the majority of the cable is in a substantially linear orientation. The retraction mechanism has at least one pulley member for displacing the pulley member between first and second positions to allow the cable to move from the storage configuration to the extended configuration.

Abstract: A cable assembly reel including a drum defining an exterior surface for receiving a length of wound cable and including at least one access panel therein for providing access to an interior cavity, and at least one flange removably attached to the drum defining an opening therethrough for receiving an axle. A cable reel for maintaining at least one cable of a cable assembly around the exterior surface of the reel and defining an interior cavity for maintaining attached hardware of the cable assembly separate from the at least one cable.

Abstract: An electric vehicle powered by a trailing cable, the vehicle including a cable guide for guiding cable onto a reel as the cable is paid out and taken up. The cable guide comprises a pair of adjacent, double flanged concave rollers in alignment with each other so that their respective flanges are spaced apart by only a small distance substantially less than the cable diameter so that an essentially closed circular path is defined by the concave surfaces of the adjacent rollers so that the cable can not escape the rollers, each of the rollers including a polyurethane core that is hard and slick that creates a natural bearing surface, and an outer portion made of softer polyurethane than the core that aids in gripping and guiding the cable onto the cable reel.

Abstract: A power cord cooling apparatus disposed in a cord reel chamber formed inside a main body of the vacuum cleaner to cool a power cord wound around a cord reel, wherein the power cord cooling apparatus allows outside air to enter the cord reel chamber, to contact the power cord wound around the cord reel, and to be discharged outside the cord reel chamber via a center space in the cord reel.

Abstract: A conductor clamp (4) for a trailing line (5) which is secured to crabs (7) which can be moved along a carrier rail (1) comprises a support (8) for the trailing line, a clamping device (9) for securing the trailing line to the support and a shock absorber (10) for absorbing an impact of the first crab on the conductor clamp. The shock absorber has at least two spring bodies (20, 22) which have different characteristics and which are arranged one behind the other in the anticipated direction of action of the shock absorber. In this context, the most resilient spring body (20) is arranged closest to the end of the shock absorber which is provided for the application of an impact force. The shock absorber also has a lifting rod (16) which can be displaced under the effective impact force in the anticipated direction of action of the shock absorber. At the two ends of the lifting rod, spring bodies with different characteristics are arranged.

Abstract: A signal receiving mechanism includes a cord reel, a cord wound around the cord reel, a signal receiving element assembled to a top of the cord reel, a grounding unit, and a pivot unit for rotatably connecting the cord reel to the grounding unit. The cord reel includes a hollow tubular body having a horizontal inner annular section. The cord includes a first and a second wire, inner ends of which are extended into the hollow tubular body below the inner annular section. The signal receiving element has a lower end downward extended through the inner annular section to electrically connect to the first wire of the cord. The grounding unit includes a first annular conductive plate, which is set at an underside of the inner annular section to electrically connect to the second wire of the cord, and is in contact with a conduction module for grounding.

Abstract: A simple and effective wire and cable management device includes a housing generally in the form of a rectangular cuboid having opposing front and back walls, opposing top and bottom walls and opposing first and second side walls. A reel is disposed within the housing and is rotatable on an axis perpendicular to the front and back walls. A peripheral portion of the reel extends through an opening in the side wall of the housing. At least two of the opposing walls have cooperating mechanical couplings for securing the device to another identical device so that a plurality of devices may be easily connected together to manage and organize an array of wires, cables and cords.

Abstract: The retractable cable device includes a base, a rotary portion, a spring, a cover, and at least two medal plates. The rotary portion cooperates with the base to form a cavity, and the cable is disposed on the rotary portion. The spring is disposed in the cavity for driving the rotary portion to rotate. The cover is coupled to the base. The metal plate is connected to the rotary portion for maintaining an electrical connection between the antenna and the cable when the rotary portion rotates.

Abstract: This invention relates to a system for automatically self-adjusting the height, length and direction of an electrical power cable connecting a movable machine, such as a crane, to a fixed electrical power supply. One end of the cable is wrapped around a reel which is arranged within a housing that is freely rotatable about a vertical axis. That end is connected to an electrical power source. The opposite end of the cable is connected to a machine which is moveable towards and away from, and around, the reel. A motor rotates the reel for winding up, and applying a tension upon, the cable so that the center portion of the cable, which extends between the reel and machine, is held relatively taut and generally horizontal. The central portion of the cable extends through a vertical slot in the housing so that its height, length and direction of extension towards the machine are automatically adjusted in response to the position of the moveable machine relative to the reel.

Abstract: Apparatus for supplying electrical energy to a mobile working machine in the off-road sector, wherein a supporting arm is provided on the working machine, and a drum for accommodating a cable is mounted on the supporting arm. A slip ring body is arranged in the interior of the drum shell, the slip ring body having a plurality of individual slip rings, from which the electrical energy is taken via brushes and transmitted to a cable which is passed on into the working machine. The slip ring body is mounted so that it is separated mechanically from the drum casing on a common axis, and means are provided for transferring the revolution of the drum casing to the inner slip ring body.

Abstract: A modular cord retractor apparatus includes a spring-driven reel and may be used with a range of different electrical appliances incorporating a dual conductor cord. Fixed and rotating electrical contact pairs provide power to the cord and reduce noise and wear. Rotating contacts are disposed at axially opposing ends of an axle assembly supporting the reel. Each rotating contact has a contact surface intersecting the axis and each fixed contact is mounted to a fixed reel mount. The axle assembly includes first and second axle portions of a dielectric material, each receiving a respective electrically-conductive strip, with the rotating contacts located proximate one end of each strip.

Abstract: A cord winding mechanism for an electrically powered device such as a vacuum cleaner. The cord winding mechanism may be used with a device having an electric motor. The mechanism may include a cord receiving member for receiving a cord. The cord receiving member may define an interior space and have an axis. The mechanism may include a biasing member that may transmit a rotational force to the cord receiving member to rotate the cord receiving member about the axis. The mechanism may include a retention member that may selectively prevent the cord receiving member from rotating under the rotational force of the biasing member. The cord receiving member may be adapted to receive at least part of the motor inside the interior space of the cord receiving member. The mechanism may include ventilation openings for providing ventilation An electric motor assembly may include the mechanism and a motor. An electric appliance may include a housing and the assembly.

Abstract: A conductor clamp (4) for a trailing line (5) which is secured to crabs (7) which can be moved along a carrier rail (1) comprises a support (8) for the trailing line, a clamping device (9) for securing the trailing line to the support and a shock absorber (10) for absorbing an impact of the first crab on the conductor clamp. The shock absorber has at least two spring bodies (20, 22) which have different characteristics and which are arranged one behind the other in the anticipated direction of action of the shock absorber. In this context, the most resilient spring body (20) is arranged closest to the end of the shock absorber which is provided for the application of an impact force. The shock absorber also has a lifting rod (16) which can be displaced under the effective impact force in the anticipated direction of action of the shock absorber. At the two ends of the lifting rod, spring bodies with different characteristics are arranged.

Abstract: A reel includes a reel drum enclosed within a housing comprising a first housing portion, a second housing portion, and a middle housing portion positioned therebetween. A spindle member has a first end connected to the first housing portion and a second end connected to the second housing portion. The spindle member extends through an opening in the drum so that the drum is rotatable about a spindle axis defined by the spindle member. The middle housing portion encircles the drum and has an aperture through which linear material can extend, the linear material of a type that may be spooled on the drum. The middle housing portion is rotatable about the spindle axis independently of the drum. In preferred embodiments, the reel is a cord reel and the linear material is electrical cord. In preferred embodiments, the middle housing portion is rotatable at least 360° about the spindle axis. In preferred embodiments, the drum is powered by an electric motor.