Two-wheeled hand trucks

In a two-wheeled hand truck or dolly structure including:

• a pair of wheels;
• a primary frame adapted in use to assume a generally vertical position supported by said wheels;
• a generally forwardly disposed nose part supported by said wheels and connected to project forwardly from the primary frame to receive an object to be carried thereon;
• said frame at its upper end incorporating a handle portion which can be grasped by the user to propel the truck, along with the product carried by the nose part resting back against the primary frame;
• said frame comprising an open framework with side rails connected by cross rails;
• an axle connecting said wheels;
• and axle mounted brackets extending forwardly toward the nose part;
• the improvement wherein the side rails have outboard sides provided with external grooves, the brackets have key parts thereon snugly received by the grooves in the lower ends of the side rails;
• and means clamps said key parts within the grooves in the lower ends of said side rails.

In a two-wheeled hand truck or dolly structure:

• a pair of wheels;
• a primary frame adapted in use to assume a generally vertical position supported by said wheels;
• a generally forwardly disposed nose part supported by said wheels and connected to project forwardly from the primary frame to receive an object to be carried thereon;
• said frame at its upper end incorporating a handle portion which can be grasped by the user to propel the truck, along with the product carried by the nose part resting back against the primary frame;
• said frame comprising an open framework with side rails connected by cross rails;
• an axle connecting said wheels;
• axle mounted brackets connected with the nose part to the primary frame side rails;
• and stair climbers having upper ends releasably clamped to the side rails and lower ends with alternate openings, one set of which is clamped to the brackets.

In a two-wheeled hand truck or dolly structure including:

• a pair of wheels, a primary frame adapted in use to assume a generally vertical position supported by said wheels;
• a generally forwardly disposed nose part supported by said wheels and connected to project forwardly from the primary frame to receive an object to be carried thereon;
• said frame at its upper end incorporating a handle portion which can be grasped by the user to propel the truck, along with the product carried by the nose part resting back against the primary frame;
• said frame comprising an open framework with side rails connected by cross rails;
• an axle connecting said wheels;
• and stair climbers having upper ends secured to the side rails and lower ends supported by the axle such that their rear surfaces are substantially peripherally flush with the diameter of the wheels;
• the improvement wherein said stair climbers comprise a web part with an outer stair engaging flange of enlarged width;
• metallic backer strips are provided for the backs of the stair climbers, shaped to the configuration thereof and in facial engagement therewith, and releasable bent over tabs secure their front and rear ends thereto.

In a two-wheeled hand truck or dolly structure including:

• a pair of wheels, an axle connecting said wheels;
• a primary frame, adapted in use to assume a generally vertical position, supported by said wheels;
• a generally forwardly disposed nose part supported by said wheels and connected to project forwardly from the primary frame to receive an object to be carried thereon;
• said frame comprising an open framework with side rails connected by cross rails and at its upper end incorporating a handle portion which can be grasped by the user to propel the truck, along with the product carried by the nose part resting back against the primary frame;
• axle mounted brackets extending forwardly toward the nose part and mounted to the lower ends of said side rails;
• means for securing the brackets to the side rails;
• the improvement wherein at least one of said side rails is formed with an exposed, generally T-shaped slot from one end to the other comprising an enlarged width head portion defined by projecting flanges and a reduced width neck portion;
• at least one of said brackets has a projecting key part received in said head portion of the slot via said neck portion;
• and an elongate semi-rigid strip bearing information of an advertising or identifying character on its outer face is received by the head portion of the slot and has side edges underlying and retained by the flanges.

In a two-wheeled hand truck or dolly structure including:

• a pair of wheels, an axle connecting said wheels;
• a primary frame, adapted in use to assume a generally vertical position, supported by said wheels;
• a generally forwardly disposed nose part supported by said wheels and connected to project forwardly from the primary frame to receive an object to be carried thereon;
• said frame comprising an open framework with side rails connected by cross rails and at its upper end incorporating a handle portion which can be grasped by the user to propel the truck, along with the product carried by the nose part resting back against the primary frame;
• axle mounted brackets extending forwardly toward the nose part and mounted to the lower ends of said side rails;
• the improvement wherein the nose part and brackets are separately fabricated parts with the nose part having fore to aft extending vertical walls inboard of the sides of said side rails opposite bracket walls outboard of the sides of said side rails;
• and means for clamping the brackets, nose vertical walls, and side rails in assembled position.