Special big 4 wheeler wheel barrow

Abstract

An auxiliary wheel assembly mounted on a selected portion of a wheelbarrow comprising: several structural members namely a urethane receptacle barrow, a dual front support and wheel assembly, a rear support and wheel assembly with a plurality of heavy duty wheels, and a means to connect these front and rear assembles and barrow. These members are potentially made of various materials and are designed for Original Equipment offerings or After Market additions to currently produced wheel barrows. The device may have alternative embodiments with various materials and wheel assembly designs.

Description

DESCRIPTION OF THE DRAWINGS—FIGURES

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the Special Four Wheeled Wheel Barrow that is preferred. The drawings together with the summary description given above and a detailed description given below serve to explain the principles of the Special Four Wheeled Wheel Barrow. It is understood, however, that the Special Four Wheeled Wheel Barrow is not limited to only the precise arrangements and instrumentalities shown.

FIG. 1 is a Photograph of the latest prototype assembly of the Special Four Wheeled Wheel Barrow.

FIGS. 2A through 2E are photographs of the Special Four Wheeled Wheel Barrow with the various components and features noted.

FIGS. 3A through 3C are photographs of the Special Four Wheeled Wheel Barrow with the various components and features noted.

FIGS. 4 including 4A through 4C are sketches of the original concepts and improvements to the Special Four Wheeled Wheel Barrow 31.

FIGS. 5A, B, C, and D are drawings of a typical Special Four Wheeled Wheel Barrow now available in the U.S. market.

FIG. 6 is a set of sketches and photographs showing the use of a Special Four Wheeled Wheel Barrow with a building site such as a commercial building.

Claims

1. An improved wheelbarrow device comprising: a). a receptacle barrow;b). a front support and wheel assembly;c). a rear support and wheel assembly; andd). a means to connect the barrow, front wheel assembly, and the rear wheel assemblywhereby the improved device results in a durable, energy efficient and ergonomically superior heavy duty construction wheel barrow as compared to a standard construction wheel barrow device.

2. The device according to claim 1 wherein the means to connect is a four bar linkage that enables heavy loading to the front and rear wheel assemblies.

3. The device according to claim 2 wherein the four bar linkage means is to connect are front supports for the front wheels, two handles running rearwardly, two rear tangs, a left and a right, connected to the handles, and a rear wheel connection means.

4. The device according to claim 3 wherein the rear wheel connection means is comprising a). two vertical straps, a left and a right; eachb). a means to fasten each of the vertical straps securely and singularly to a respective left and right rear tang;c). two rear wheel assemblies including a bearing system integrally built into each of a wheel;d). a rear axel extending through the rear wheel bearing assemblies;e). an integral loop manufactured into each of the vertical straps for encircling the rear axel and connecting the rear axel to the respective rear tangs;f). two hub washers, each on the exterior outer side of one of the wheels;g). a means to retain each of the hub washers movably on the axel.

5. The device according to claim 4 wherein the rear wheels are enlarged and heavy duty as compared to standard garden wheel barrows and carts.

6. The device according to claim 1 wherein the receptacle barrow is comprised of a durable composite material.

7. The device according to claim 6 wherein the composite material is a rigid urethane material.

8. A wheelbarrow conversion kit comprising, in combination, a). a wheelbarrow defined by a receptacle barrow, a front dual wheel assembly, handles, and two rear support tangs;b). a pair of high strength front support straps;c). a rear dual wheel assembly; andd). means to securely yet removably attach the rear wheel assembly to the rear support tangswhereby the improved device results in a durable, energy efficient and ergonomically superior heavy duty construction wheel barrow as compared to a standard construction wheel barrow device.

9. The device according to claim 8 wherein the rear wheel connection means is comprising a). two vertical straps, a left and a right; eachb). a means to fasten each of the vertical straps securely and singularly to a respective left and right rear tang;c). two rear wheel assemblies including a bearing system integrally built into each of a wheel;d). a rear axel extending through the rear wheel bearing assemblies;e). an integral loop manufactured into each of the vertical straps for encircling the rear axel and connecting the rear axel to the respective rear tangs;f). two hub washers, each on the exterior outer side of one of the wheels;g). a means to retain each of the hub washers movably on the axel.

10. The device according to claim 9 wherein the rear wheels are enlarged and heavy duty as compared to standard garden wheel barrows and carts.