Abstract: Provided is a hand truck comprising a frame having a first end, and a second end configured with a wheel set, and a ledge extending at said second end, wherein one or both of the frame and the ledge is configured with an articulation arrangement for detachably attaching thereto a utility unit, the articulation arrangement extending parallel to a plane of the respective frame or ledge.

Abstract: Provided are mechanical braking systems for wheeled trolleys, trolleys including a mechanical braking system and methods for controlling movement thereof.

Abstract: Provided is a wall mounting system including at least one wall mount articulable to a wall, and at least one coupling member; the mounting portion includes two parallelly disposed side walls with a locking portion at a distal end thereof, for snug insertion into the locking slot of the wall mount; and the coupling member is configured with an obstructing plunger slidingly displaceable within a space between side walls, between a locked position, at which the plunger at least partially projects into the first locking recess, and an unlocked position at which the plunger is retracted into the space and out of the first locking recess. Further provided is a tolerance cancelation mechanism for a wall coupling member articulable to a wall mount, including a pivotal fastener member configured with an asymmetric sector-like shape with a wall engaging arc surface for bearing against a wall surface.

Abstract: Provided are rack systems including at least one support rail configured with a plurality of axially extending bracket arresting slots and a plurality of corresponding locking locations, and at least one support bracket including at least two axially disposed engaging hooks readily detachably attachable with any two or more of the bracket arresting slots of the support rail, said support bracket further including a locking mechanism including a locking plunger configured for engaging with a locking location at the support rail.