A compaction device for compacting a soil region includes at least one vibration unit and/or oscillation unit able to be driven by an electric drive motor. A soil contacting unit comprises at least one soil contacting element in contact with the soil region. The soil contacting unit comprises at least the electric drive motor and the vibration unit and/or the oscillation unit. At least one power supply unit supplies the electric drive motor with electric drive power. At least one electric plug device for releasably and electrically connecting the electric drive motor is provided between the electric drive motor and the power supply unit. At least one fixing device for releasably and mechanically fixing to the power supply unit is provided between the soil contacting element of the soil contacting unit and the power supply unit.

A control apparatus for a soil compacting apparatus which can be driven by a drive motor. The control apparatus includes a running-direction operating element, which is pivotable about a first axis, for predetermining a running direction of the soil compacting apparatus by an operator, and further includes a rotational-speed operating element, which is pivotable about a second axis, for setting a rotational speed of the drive motor. The first axis and the second axis are congruent and form a common pivot axis.

A control apparatus for a soil compacting apparatus which can be driven by a drive motor. The control apparatus includes a running-direction operating element, which is pivotable about a first axis, for predetermining a running direction of the soil compacting apparatus by an operator, and further includes a rotational-speed operating element, which is pivotable about a second axis, for setting a rotational speed of the drive motor. The first axis and the second axis are congruent and form a common pivot axis.

The present invention relates to a device for generating vibrations for a ground compaction machine, in particular a self-propelled ground compaction roller, comprising a first imbalance mass and a second imbalance mass, each of which is rotatably mounted, a first hydraulic motor configured to set the first imbalance mass into rotation, a planetary gear connected to the first hydraulic motor and via which the second imbalance mass can be driven, a second hydraulic motor which is also connected to the planetary gear and is configured to change the transmission ratio from the first hydraulic motor to the second imbalance mass via the planetary gear, wherein a third hydraulic motor is provided which is also connected to the planetary gear and is also configured to change the transmission ratio from the first hydraulic motor to the second imbalance mass via the planetary gear. Moreover, the present invention relates to a ground compaction machine and a method for operating the device and the ground compaction machine, respectively.

The present invention relates to a device for generating vibrations for a ground compaction machine, in particular a self-propelled ground compaction roller, comprising a first imbalance mass and a second imbalance mass, each of which is rotatably mounted, a first hydraulic motor configured to set the first imbalance mass into rotation, a planetary gear connected to the first hydraulic motor and via which the second imbalance mass can be driven, a second hydraulic motor which is also connected to the planetary gear and is configured to change the transmission ratio from the first hydraulic motor to the second imbalance mass via the planetary gear, wherein a third hydraulic motor is provided which is also connected to the planetary gear and is also configured to change the transmission ratio from the first hydraulic motor to the second imbalance mass via the planetary gear. Moreover, the present invention relates to a ground compaction machine and a method for operating the device and the ground compaction machine, respectively.

A construction vehicle includes a frame, at least one drum, and a vibratory system. The vibratory system includes a first eccentric weight, a second eccentric weight, and a shift assembly adapted to vary an amplitude of the vibratory system. The shift assembly includes a shaft member adapted to move along a first axis for changing a position of the first eccentric weight relative to the second eccentric weight. The shift assembly also includes an actuator and a fork assembly adapted to move the shaft member along the first axis. The fork assembly includes a fork fixedly coupled to the actuator. The fork assembly also includes a housing member concentrically disposed around the shaft member, wherein the fork is pivotally coupled to the housing member at a pair of pivot points defined proximate to the second end of the fork. The fork assembly further includes a bearing member.

A construction vehicle includes a frame, at least one drum, and a vibratory system. The vibratory system includes a first eccentric weight, a second eccentric weight, and a shift assembly adapted to vary an amplitude of the vibratory system. The shift assembly includes a shaft member adapted to move along a first axis for changing a position of the first eccentric weight relative to the second eccentric weight. The shift assembly also includes an actuator and a fork assembly adapted to move the shaft member along the first axis. The fork assembly includes a fork fixedly coupled to the actuator. The fork assembly also includes a housing member concentrically disposed around the shaft member, wherein the fork is pivotally coupled to the housing member at a pair of pivot points defined proximate to the second end of the fork. The fork assembly further includes a bearing member.

A construction vehicle includes a frame, at least one drum, and a vibratory system. The vibratory system includes a first eccentric weight, a second eccentric weight, and a shift assembly adapted to vary an amplitude of the vibratory system. The shift assembly includes a shaft member adapted to move along a first axis for changing a position of the first eccentric weight relative to the second eccentric weight. The shift assembly also includes an actuator and a fork assembly adapted to move the shaft member along the first axis. The fork assembly includes a fork fixedly coupled to the actuator. The fork assembly also includes a housing member concentrically disposed around the shaft member, wherein the fork is pivotally coupled to the housing member at a pair of pivot points defined proximate to the second end of the fork. The fork assembly further includes a bearing member.

A construction vehicle includes a frame, at least one drum, and a vibratory system. The vibratory system includes a first eccentric weight, a second eccentric weight, and a shift assembly adapted to vary an amplitude of the vibratory system. The shift assembly includes a shaft member adapted to move along a first axis for changing a position of the first eccentric weight relative to the second eccentric weight. The shift assembly also includes an actuator and a fork assembly adapted to move the shaft member along the first axis. The fork assembly includes a fork fixedly coupled to the actuator. The fork assembly also includes a housing member concentrically disposed around the shaft member, wherein the fork is pivotally coupled to the housing member at a pair of pivot points defined proximate to the second end of the fork. The fork assembly further includes a bearing member.

The present invention provides a motor apparatus having a motor, comprising: a fan that is rotatably supported by a shaft member of the motor, and sends, in a centrifugal direction by rotation, gas taken from an axial direction of the shaft member; and a cover member that covers the fan so as to allow the gas sent in the centrifugal direction from the fan to flow along an outer surface of the motor, wherein the cover member has a blowout port that blows out some of the gas sent in the centrifugal direction from the fan in the centrifugal direction to cool an external mechanism of the motor apparatus.