A tamper drive includes a wobble shaft rotatable about a central axis. The wobble shaft includes an eccentric hub recess within a movable bearing coupled to a yoke. The movable bearing rotates when the wobble shaft rotates to induce reciprocal movement of the yoke. In another tamper drive, an eccentric portion of a wobble shaft is rotatable within a bearing coupled to or integrated with an offset lobe having a pin slidingly disposed therein. Still another tamper drive includes an arm having a shaft fixedly coupled to one end, and first and second cam followers disposed at the other end. A rotatable cam provides a cam surface for each of the first and second cam followers.

A soil preparation roller system for a soil preparation machine includes a roller body rotatable around a roller rotational axis having a carrier structure for the rotatable mounting of the roller body and having a carrier jacket supported on the radial outside on the carrier structure, a group of working jackets to be positioned abutting a carrier jacket outer side and providing a working outer side of a soil preparation roller. Each working jacket includes a plurality of working jacket segments to be arranged successively in the circumferential direction completely enclosing the roller body annularly, and the group of working jackets includes at least two working jackets having essentially equal mass to one another.

A soil preparation roller system for a soil preparation machine includes a roller body rotatable around a roller rotational axis having a carrier structure for the rotatable mounting of the roller body and having a carrier jacket supported on the radial outside on the carrier structure, a group of working jackets to be positioned abutting a carrier jacket outer side and providing a working outer side of a soil preparation roller. Each working jacket includes a plurality of working jacket segments to be arranged successively in the circumferential direction completely enclosing the roller body annularly, and the group of working jackets includes at least two working jackets having essentially equal mass to one another.

An assembly for vibrating a compacting drum of a compacting machine includes a shaft rotatably mountable to a compacting drum of the compacting machine. The center of mass of the shaft is offset from the geometrical rotation axis of the shaft. An outer eccentric member is arranged outside of the shaft, wherein the center of mass of the outer eccentric member is offset from the geometrical rotation axis of the shaft. The outer eccentric member is displaceably mounted relative to the shaft for adjustment of the eccentricity of the assembly. An extension of the outer eccentric member in a direction parallel with the geometrical rotation axis of the shaft is at least two times an average extension of the outer eccentric member in a radial direction perpendicular to the geometrical rotation axis of shaft such that a mass of the outer eccentric member forms a distributed load along the geometrical rotation axis of the shaft.

Example implementations relate to print substance container vibration. A vibrator for a print system may comprise a motor, and a vibration shaft coupled to the motor to cause vibration to provide redistribution of print substance of a print substance container. The vibration may be caused in response to the rotation of an eccentrically loaded weight about a central axis of the vibrator.

Example implementations relate to print substance container vibration. A vibrator for a print system may comprise a motor, and a vibration shaft coupled to the motor to cause vibration to provide redistribution of print substance of a print substance container. The vibration may be caused in response to the rotation of an eccentrically loaded weight about a central axis of the vibrator.

A debris removal system includes an elongated shaft extending from a proximal end to a distal end and including a shaft lumen, the shaft being configured to be inserted through a bodily lumen to a target surgical site, a vibration motor coupled to the elongated shaft via a vibration collar, the vibration motor including a rotatable shaft and at least one weight coupled to the rotatable shaft, the weight being asymmetrically shaped about a central axis of the shaft such that rotation of the shaft creates vibrational energy along the length of the elongated shaft to dislodge debris within the target surgical site, and a vacuum pump connected to the elongated shaft and configured to vacuum dislodged debris from the target surgical site through the shaft lumen.

A vibratory assembly has a power source with a rotational output, an implement configured to work uncured concrete, and a vibratory head means for receiving a rotational input from the power source and converting the input from the power source into mechanical oscillation and to transfer the mechanical oscillation to the implement.

A haptic information presentation system uses a human sensory characteristic or illusion to suitably control a physical quantity, and causes a person to feel a force which cannot exist physically, or a haptic sensory physical characteristic.

An oscillation module for a compacting roller of a soil compactor includes a plate-like carrier, at least two oscillation mass units supported on the carrier at a distance from one another, and an oscillation drive motor supported on the carrier. The carrier has a connection formation for firmly connecting the carrier to a carrier structure of a compacting roller. Each oscillation mass unit includes an imbalance mass rotatably supported on the carrier about an oscillation axis of rotation. Each imbalance mass of each oscillation mass unit can be driven by the oscillation drive motor for rotation about the respectively assigned oscillation axis of rotation.