Robotic vehicle and use thereof for displacing a holder for goods, which is for instance loaded with goods, which vehicle can be operated in an empty position and a loaded position, comprising of (1) moving the robotic vehicle to a position under the holder in a first direction, wherein the robotic vehicle is in the empty position, wherein a holding means is countersunk in a body of the vehicle; (2) lifting the holder, wherein the robotic vehicle lifts the holder by performing a vertical movement of the holding means relative to the wheels of the vehicle, such that the holding means comes into contact with an underside of the holder, wherein the robotic vehicle transfers to the loaded position; (3) rotating driven wheels of the robotic vehicle from the first direction to the second direction without the body of the vehicle being rotated, and (4) displacing the robotic vehicle in the loaded position in a second direction, wherein the first and second direction enclose a mutual angle of between 60 and 120 degrees, preferably 75 and 105 degrees, more preferably 85 and 95 degrees, such as a substantially right angle.

A hand truck (10) comprises a frame (12), a platform (14) for carrying a load, an axle (26), two wheels (16) mounted on the axle (26), axle guide members (42), and biasing means (30). The axle (26) is moveable along the axle guide members (42) to move the axle (26) relative to the platform (14). The biasing means (30) compresses to resist tilting of the hand truck (10).

An electronic component enclosure comprises an outer frame and an inner frame, with the outer and inner frames forming a plenum therebetween. A cooling facility such as an HVAC unit is fluidly coupled to the electronic component enclosure's plenum. The cooling facility is controlled by a control system configured to adjust at least one property of fluid flowing through the plenum, such as its flow rate and/or temperature. Alternatively, a cooling system can comprise a plurality of electronic component enclosures such that a control system can be configured to adjust at least one property of fluid flowing through each electronic component enclosure's respective plenum.

The disclosure provides a noise reduction structure comprising a stroller frame, a supporting frame connected to the stroller frame, and a wheel mounted on the supporting frame, the supporting frame receive a force so that the wheel contacts a supporting surface to slide; and an elastic resetting member is arranged between the supporting frame and the stroller frame, the resetting member always has a tendency to bring the supporting frame to reset. The noise reduction structure of the disclosure has a simple structure and is suitable for baby strollers or hand carts. By additionally arranging a resetting member between the supporting frame and the stroller frame, the supporting frame always has a resetting tendency, that is, when the supporting frame is unloaded, the resetting member may suspend the wheel, so as to avoid noise caused by friction between the wheel and the supporting surface.

A device capable of manually raising or lowering a means for transporting a load to assist overcoming obstacles, including an arm automatically articulated about an articulation attached to the means for transporting the load between a first position retracted by the weight of the load and a second position deployed by the action of an elastic element, and a damping system capable of storing and releasing potential energy and of restoring it when the means for transporting the load is raised to overcome an obstacle and capable of absorbing shocks suffered by the transport means while overcoming a difference in level.

A device structured and arranged a more reliable means of transporting tall wedding cakes, tiered cakes, large floral arrangements or ice sculptures from their place of creation to their destination includes a height-adjustable platform, a sliding tray, and poles for supporting the platform.

A child stroller includes a frame member and a wheel attachment member including a first end and a second end. A wheel is coupled to the first end, with the second end coupled to the frame member. The stroller further includes a shock absorber having a body, an upper end coupled to the frame member, a lower end coupled to the wheel attachment member, and a spring mechanism disposed within the body. The spring mechanism includes an upper portion exhibiting a first spring constant, and a lower portion exhibiting a second spring constant different from the first spring constant.

A frame adjustable all-terrain stroller apparatus for use along hiking and wilderness trails includes rear wheels attachable at lowermost ends of independently positionable swing arms. Each swing arm is securable independently and each rear wheel is thereby positionable at a different elevation enabling stable operation of the stroller apparatus along sloped surfaces. Each rear wheel includes a stub axle devised to engage interior to an aperture disposed at the lowermost end of each of the pair of swing arms. The rear wheels are securable in each of a first position, exteriorly mounted to the swing arms, and a second position, interiorly mounted to the swing arms, whereby the rear wheel track of the stroller apparatus is variable. No rear axle connecting between the rear wheels is required, so clearance of the stroller apparatus is maintained.

The invention relates to suspension design. The present vehicle suspension comprises a quadrangular frame. Each corner portion of the frame has a wheel block kinematically attached thereto so as to form two pairs of wheelsa front pair and a rear pair. On each side of the frame, longitudinal and transverse coupling cables are fastened for movement therealong inside housings. Each wheel block consists of a body that is simultaneously connected to two coupling cables. Movably mounted on the body are parallel horizontal arms, the first of which is fastened to the body by its middle portion. A knuckle with the hub of a wheel is attached to an end of the first arm and to another end of the second arm, and two coupling cable dampers are attached to the other end of the first arm. The housings of the cables are attached to the body of the corresponding wheel block. The free end of each cable is enclosed in a damper. Mounted on the cable end portions that freely project from the housings in front of a damper are spring stabilizers of the position of the wheel of the wheel block. Each coupling cable is provided with a linear actuator. The result is an increase in the stability and smoothness of movement of a vehicle.

A wheel shock absorption structure and a child carrier having the wheel shock absorption structure, including a wheel shaft and a wheel seat connected with a frame, and a lower end of the wheel seat is rotatably connected with a wheel through the wheel shaft. Further including a shock absorber with an elastic structure, an upper end of the shock absorber is removably connected with an upper end of the wheel seat, and the shock absorber rotates synchronously along with the wheel seat; a lower end of the shock absorber is rotatably connected with the wheel shaft which is slidably connected with the lower end of the wheel seat. The shock absorber is driven by sliding of the wheel shaft to generate recoverable elastic deformation to provide damping and buffering. The bending deformation of the shock absorber ensures that the wheel shock absorption structure has a better shock absorbing effect.