A multi-shelf storage apparatus for storage of articles, comprising a wheeled base; a frame disposed on the wheeled base; a plurality of vertically-spaced shelves on the frame for providing a storage area for articles, each shelf configured to move vertically. The apparatus includes a lift mechanism disposed on the frame, coupled to the shelves, and configured to cause collapse and extension of the shelves in a vertical direction. The apparatus has an actuator on the frame operable to drive the lift mechanism, and a power interface on the frame and electrically connected to the actuator. The apparatus has a mechanical connection for connecting to a towing device and a first power interface integral to the mechanical connection such that the actuator can receive electrical power from the towing device. Systems comprising one or more of the apparatuses and methods for loading/unloading articles utilizing the apparatuses are also disclosed.

Disclosed is a wagon adapted to be folded between an expanded open configuration and a compact collapsed configuration. A basket of the wagon is carried by a collapsible frame having height adjustment legs at the corners thereof. Height adjustment guides that stand upwardly from wheel brackets are slidable up and down through respective height adjustment legs such that the elevation of the frame and the basket carried thereby can be selectively changed. Rotatable handles are pivotally attached to the wagon at the front and the rear of the wagon frame. Telescoping canopy support assemblies are removably received downwardly within and upwardly from respective ones of the height adjustment guides to hold a removable canopy over the wagon basket. A collapsible wagon frame support has a set of rotatable frame reinforcing rods pivotally and detachably connected by ball and socket couplings to the bottom of the wagon frame at the corners thereof.

A frame has a wheel assembly that can move up or down. A linkage extends between a catch to the wheel assembly and a grip on the frame, so the wheel assembly can be released for vertical movement with respect to the channel. A tray affixed to the frame near the bottom of the channel can receive a panel when the wheel assembly is at an upper position. Then, the frame and panel can be briefly lifted off the ground. The linkage can be activated to release the catch so the wheel assembly drops and is secured by the catch in a lower position, resulting in the wheel's protrusion below the bottom of the frame. This causes the weight of the device and the panel to be borne on the wheel, so the panel can be wheeled around the jobsite by one person.

A cart includes a frame, a holding portion supported by the frame and in which a product is stored, a lifting unit configured to raise and lower the holding portion, an imaging device directed towards an inside of the holding portion, and a controller. The controller is configured to acquire an image of a product captured by the imaging device, determine whether the product has been continuously imaged by the imaging device over a predetermined time period, and upon determining that the product has been imaged over the predetermined time period, control the lifting unit to lower the holding portion.

The present application discloses a stroller frame switchable between an unfolded position and a folded position. The stroller frame includes an unfolding and folding mechanism, a front foot support, a rear foot support, a first connecting bar, and a second connecting bar. The unfolding and folding mechanism includes a supporting body and a movable body movable relative to the supporting body. The front foot support is pivotally connected to the supporting body. The rear foot support is pivotally connected to the supporting body, the rear foot support is pivotable relative to the front foot support. The first connecting bar is pivotally connected to the front foot support and the movable body, respectively. The second connecting bar is pivotally connected to the rear foot support and the movable body, respectively, and the second connecting bar is pivotable relative to the first connecting bar.

A child stroller apparatus includes a standing frame, a push handle frame having a side segment, the side segment being pivotally connected with the standing frame via a pivot connection, an adapter having a coupling portion configured to receive the installation of a detachable part, the adapter being fixedly connected with a handle, the handle having a cavity through which is slidably disposed the side segment so that the handle and the adapter are slidable in unison along the side segment for adjustment, and a locking mechanism for locking the adapter in position on the side segment, the locking mechanism including a release actuator exposed on the handle for operation, the release actuator being operable to cause the locking mechanism to unlock for sliding adjustment of the handle and the adapter along the side segment.

Disclosed is an up-down worktable including a base frame, a lifting member installed on the base frame to be vertically slidable, a work support having one side surface provided with a mounting surface to allow an object to be transferred to be mounted thereon and having an end pivotably installed on the lifting member, a lift support portion installed on the base frame to move the lifting member upward while elastically supporting the lifting member to allow the lifting member to move downward according to a load of the object mounted on the mounting surface, and an angle restriction portion configured to restrict a pivoting angle of the work support so that the mounting surface is set in a direction of intersecting with a sliding direction of the lifting member to mount the object on the mounting surface or the work support stands straight with respect to the base frame.

A manually manipulated apparatus supports a piece of equipment beneath a rail car gate of a railroad hopper car during maintenance or removal of the gate. The apparatus has a frame and a support frame attached to the frame. The support frame is selectively raisable and lowerable between a lowered position adjacent to the frame to a raised position extending upwardly above the frame. The support frame has an equipment engagement member which has an upwardly facing surface which is adapted to engage a downwardly facing surface of the equipment when the support frame is in the raised position.

A child carrying device comprising a frame mounted on a set of wheels or castors to enable the device to be manually conveyed thereon, and a seat mounted on said frame, said device including adjustment means for selectively reconfiguring the device such that it is operable as any one of a stroller, a child back carrier and a high chair.

A double-cross cart comprises two side wall assemblies, a front wall assembly, a rear wall assembly, a bottom frame assembly, a draw bar assembly and four wheels. A front end and a rear end of the bottom frame assembly are rotatably connected to a lower end of the front wall assembly and a lower end of the rear wall assembly, respectively. The draw bar assembly is rotatably connected to the rear wall assembly. The four wheels are arranged at the lower end of the front wall assembly and the lower end of the rear wall assembly. Each side wall assembly is a double-cross structure composed of two X-shaped connecting rods that are hinged together.