Rocking device for a stroller (2), including at least one main element (10) provided with a motor (40) and rolling means (21, 23) on its lower face, the motor and the rolling means being designed to drive the main element in a back and forth movement, the upper face of the main element (10) being designed to take a wheel (3) or (4) of the stroller. The rolling means are designed to roll on the ground and the device comprises a means for automatically starting the back and forth movement as a result of a deliberate action on the part of the user in pushing the stroller (2) so as to drive the main element (10) at least once in a first direction and at least once in the direction opposite to the first direction.

The present invention relates to a running gear chain (2), in particular a bogie chain (2), having a flexible body (20), preferably an elastomer body (20), which is closed in endless fashion, or closable in endless fashion, in a running direction (A). The running gear chain (2) according to the invention is characterized by a multiplicity of rigid transverse elements (24) which are connected to the outer side of the flexible body (20) and extend substantially transversely with respect to the running direction (A), wherein at least some of the rigid transverse elements (24), preferably all of the rigid transverse elements (24), are arranged so close together in the running direction (A) that, with a planar extent of the flexible body (20), two immediately adjacent rigid transverse elements (24) make contact in the running direction (A).

A tactical transport cart manually navigable over both topographic and hydrographic terrains has a frame, a payload support on the frame, a hard point of attachment or connection on the frame or the payload support, a pair of wheels or other terrain-engaging transport propulsion members attached to the frame, a handle structure attached to the frame, at least one motor connected in driving relation to the transport propulsion members, a battery for providing motive power to the motor, and a control device connected between the battery and the motor for controlling supply of motive power to the motor. The frame, transport propulsion members and handle structure are cooperatively dimensioned and configured for movement of the cart over ground surfaces of topographic terrains and for partially and fully submerged movement over water-covered surfaces of hydrographic terrains.

A stroller track system is used to facilitate the transporting of a stroller up and down stairs. The stroller track system includes a stroller, a left tread assembly, and a right tread assembly. The left tread assembly and the right tread assembly are mounted to a frame of the stroller and are used to engage multiple stairs while traversing a set of stairs. This allows the stroller to glide smoothly up or down the stairs. The left tread assembly and the right tread assembly each include a first track and a second track. Together, the first track and the second track allow the left tread assembly and the right tread assembly to span a larger section of a staircase. The first track is mounted to the frame through a first stroller-attaching mount. A track-securing bracket is used to mount the second track to the frame.

The tracked stroller frame device may allow a user to take a stroller with them when camping, hiking, or otherwise travelling over rough terrain. The device implements a continuous track system for providing additional tractive area and reducing or eliminating getting stuck on uneven surfaces, and may include a motorized mechanism for providing driving force. The tracked stroller device allows a user to take a baby or young child with them without carrying the baby or young child. The device may be collapsible for ease of storage and transporting and may incorporate a storage area to allow for transporting of other items. A braking system may also be implemented to slow down the device or keep it parked.

A transportable machine including an elongated frame having a top end and a bottom end, a handle disposed on the top end of the frame, a base disposed on the bottom end of the frame, where the base and the frame together define a space configured to receive and support a load, and a wheel disposed on the bottom end of the frame. A track is coupled to the frame, where the track includes a roller and an endless belt configured to rotate about the roller. A motor is coupled to the roller, where the motor is operable to drive the endless belt, and a power supply provides power to the motor.

A sewer cleaning machine includes a frame and a drum rotatably supported by the frame. The drum is positioned on a first side of the frame. The sewer cleaning machine also includes a first motor supported by the frame and coupled to the drum. The first motor is operable to rotate the drum. The sewer cleaning machine further includes a cable positioned at least partially within the drum. The cable is configured to be extended from and retracted into the drum. The sewer cleaning machine also includes a track positioned on a second side of the frame. The track includes a first endless belt configured to rotate about a first roller. The sewer cleaning machine further includes a second motor supported by the frame and coupled to the first roller. The second motor is operable to drive the track.

Rocking device for a stroller (2), including at least one main element (10) provided with a motor (40) and rolling means (21, 23) on its lower face, the motor and the rolling means being designed to drive the main element in a back and forth movement, the upper face of the main element (10) being designed to take a wheel (3) or (4) of the stroller. The rolling means are designed to roll on the ground and the device comprises a means for automatically starting the back and forth movement as a result of a deliberate action on the part of the user in pushing the stroller (2) so as to drive the main element (10) at least once in a first direction and at least once in the direction opposite to the first direction.

A tread link assembly is provided for improving the performance of a wheel on loose surfaces. The tread assembly includes a plurality of linked plates forming a circuit around the outer circumference of the wheel. The linked plates include first and second linking structures and releasable fasteners for linking adjacent plates together. The together the plates create a tread surface that is wider than the axial width of the wheel.

A load wheel assembly for an elongate fork of a forked material-handling vehicle with a chassis employs a non-motorized forward load wheel, a non-motorized rear load wheel, and a non-motorized torque-coupling assembly connected between the forward load wheel and the rear load wheel for coupling torque between the forward load wheel and the rear load wheel to overcome obstacles on a surface, such as a floor.