A device for automatically connecting a vehicle to an electric power supply, comprises: a turn-over-anchor (48, 210), including a first connector part (42, 216) connected to the cable (28, 208); and a docking station (50, 212), including a second connector part (44, 230) configured for mating with the first connector part (42, 216) according to a vertical coupling axis (47, 236), when the turn-over-anchor (48, 210) is vertically deposited into the docking station (50, 212). The device further includes two horizontally spaced vertical rods (58, 58, 246, 246), each of which is arranged so as to vertically penetrate into a guide opening or hole (62, 62, 248, 248) of an opposite element (50, 50), when the turn-over-anchor (48, 210) is deposited into the docking station (50, 212), and is dimensioned so as to be self-locking in the hole (62, 62, 248, 248), if the turn-over-anchor (48, 210) is subjected to a significant force that is not aligned with the vertical coupling axis (47, 236).

A device for automatically connecting a vehicle to an electric power supply, comprises: a turn-over-anchor (48, 210), including a first connector part (42, 216) connected to the cable (28, 208); and a docking station (50, 212), including a second connector part (44, 230) configured for mating with the first connector part (42, 216) according to a vertical coupling axis (47, 236), when the turn-over-anchor (48, 210) is vertically deposited into the docking station (50, 212). The device further includes two horizontally spaced vertical rods (58, 58, 246, 246), each of which is arranged so as to vertically penetrate into a guide opening or hole (62, 62, 248, 248) of an opposite element (50, 50), when the turn-over-anchor (48, 210) is deposited into the docking station (50, 212), and is dimensioned so as to be self-locking in the hole (62, 62, 248, 248), if the turn-over-anchor (48, 210) is subjected to a significant force that is not aligned with the vertical coupling axis (47, 236).

A boom assembly for a lift device includes a plurality of telescoping boom sections. The plurality of telescoping boom sections include a base boom section, a mid boom section, and a fly boom section. The plurality of telescoping boom sections define an inner volume. The boom assembly also includes a push tube coupled to the base boom section and a support member positioned within the inner volume. The support member includes sidewalls having an inner surface and an outer surface. The boom assembly also includes a power track positioned within the inner volume that includes a plurality of movable links, a first supported portion that interfaces with at least one of the inner surface of the support member and a surface of the push tube, and a second supported portion that interfaces with the outer surface of the support member.

A boom assembly for a lift device includes a plurality of telescoping boom sections. The plurality of telescoping boom sections include a base boom section, a mid boom section, and a fly boom section. The plurality of telescoping boom sections define an inner volume. The boom assembly also includes a push tube coupled to the base boom section and a support member positioned within the inner volume. The support member includes sidewalls having an inner surface and an outer surface. The boom assembly also includes a power track positioned within the inner volume that includes a plurality of movable links, a first supported portion that interfaces with at least one of the inner surface of the support member and a surface of the push tube, and a second supported portion that interfaces with the outer surface of the support member.

An electric winch device including an electric motor that rotates a winch drum in a hoisting direction, and generates regenerative electric power when a rotation of the winch drum in a lowering direction is transmitted to the electric motor, a transmission device that transmits the rotation between the electric motor and the winch drum, a power calculating section that calculates power of the target object by freefall, and a control section that controls an operation of the transmission device. When the power calculated by the power calculating section exceeds reference electric power, the control section causes the transmission device to change the transmission rate of the rotation to a transmission rate at which the regenerative electric power generated by the electric motor is equal to or smaller than the reference electric power.

An electric winch device including an electric motor that rotates a winch drum in a hoisting direction, and generates regenerative electric power when a rotation of the winch drum in a lowering direction is transmitted to the electric motor, a transmission device that transmits the rotation between the electric motor and the winch drum, a power calculating section that calculates power of the target object by freefall, and a control section that controls an operation of the transmission device. When the power calculated by the power calculating section exceeds reference electric power, the control section causes the transmission device to change the transmission rate of the rotation to a transmission rate at which the regenerative electric power generated by the electric motor is equal to or smaller than the reference electric power.

The invention relates to a current collector system (1) for a vehicle (F) which can be moved in a longitudinal direction along a power rail arrangement (S) having at least one current collector trolley (3) and current collector contacts (5) arranged on this, which current collector contacts can be connected to the power rails (ST) of the power rail arrangement (S) and a telescopic arm (2) which can be fixed or is fixed to a vehicle (F), which telescopic arm can be extended and/or retracted by means of an adjustment drive, characterised in that the adjustment drive has at least one rigid chain arrangement (9) which is driven by at least a first rigid chain drive (8).

The invention relates to a current collector system (1) for a vehicle (F) which can be moved in a longitudinal direction along a power rail arrangement (S) having at least one current collector trolley (3) and current collector contacts (5) arranged on this, which current collector contacts can be connected to the power rails (ST) of the power rail arrangement (S) and a telescopic arm (2) which can be fixed or is fixed to a vehicle (F), which telescopic arm can be extended and/or retracted by means of an adjustment drive, characterised in that the adjustment drive has at least one rigid chain arrangement (9) which is driven by at least a first rigid chain drive (8).

The invention relates to a telescopic arm (1), in particular, for a current collector system for a vehicle which can be driven along a power rail arrangement, wherein the telescopic arm (1) can be extended and/or retracted by means of an adjustment drive (7, 8, 9, 10) and the telescopic arm (1) has a base unit (2) which can be attached to the vehicle, on which a first telescopic stage (3) is arranged displaceably in a direction (R.sub.T), in particular, horizontally, and a second telescopic stage (4) is arranged displaceably on the first telescopic stage (3) in the same direction (R.sub.T), wherein the adjustment drive (7, 8, 9, 10) is arranged on the first telescopic stage (3), characterized in that the adjustment drive (7, 8, 9, 10) interacts with a rigid chain (S), which is connected with its one end (S.sub.a) to the base unit (2) and with its other end (S.sub.b) to the second telescopic stage (4).

The invention relates to a telescopic arm (1), in particular, for a current collector system for a vehicle which can be driven along a power rail arrangement, wherein the telescopic arm (1) can be extended and/or retracted by means of an adjustment drive (7, 8, 9, 10) and the telescopic arm (1) has a base unit (2) which can be attached to the vehicle, on which a first telescopic stage (3) is arranged displaceably in a direction (R.sub.T), in particular, horizontally, and a second telescopic stage (4) is arranged displaceably on the first telescopic stage (3) in the same direction (R.sub.T), wherein the adjustment drive (7, 8, 9, 10) is arranged on the first telescopic stage (3), characterized in that the adjustment drive (7, 8, 9, 10) interacts with a rigid chain (S), which is connected with its one end (S.sub.a) to the base unit (2) and with its other end (S.sub.b) to the second telescopic stage (4).