The invention relates generally to wheelbarrows and, more particularly, to a spout for pouring liquid materials from a wheelbarrow.
The use of wheelbarrows of various designs and configurations is known in the prior art. More specifically, wheelbarrows of various designs and configurations heretofore devised and utilized for the purpose of improving the stability of wheelbarrows by using improved frames are known to consist basically of familiar, expected, and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which has been developed for the fulfillment of countless objectives and requirements.
There are nonetheless, a number of drawbacks still associated with conventional wheelbarrows. For example, if conventional wheelbarrows are used to carry very substantial loads, they tend to be instable (resulting in a tendency for the wheelbarrow to tip over during use), unreliable, and have relatively short life expectancies. In addition, conventional wheelbarrows are unable to pour liquid materials with any precision. Accordingly, continuing research has been directed to the development of wheelbarrows having relatively substantial load bearing capabilities which are also more rigid and reliable than conventional wheelbarrows, and also have longer life expectancies than conventional wheelbarrows.
The present invention, accordingly, provides a wheelbarrow having a main frame defining first and second spaced-apart longitudinal portions. An axle is mounted on the main frame, and a wheel is rotatably mounted on the axle. A body, such as a tub or flat bed, is mounted to the main frame for supporting and carrying a load. A first leg structure is attached to the first longitudinal portion of the main frame, and includes a substantially straight base portion configured for aligning with and engaging ground when the wheelbarrow is placed in a stationary position. Similarly, a second leg structure is attached to the second longitudinal portion of the main frame, and includes a substantially straight base portion configured for aligning with and engaging ground when the wheelbarrow is in placed a stationary position.
In one embodiment, cross-bracing is provided extending from each end of each base portion of each leg structure to the main frame.
In another embodiment of the invention, the main frame, first leg structure, and second leg structure are fabricated from tubular steel, and are welded together.
In another embodiment, a lateral member is positioned to extend between the first and second longitudinal portions of the main frame, and lateral cross braces are positioned to extend from the lateral member to the first and second leg structures.
In another embodiment, the main frame extends to define laterally spaced-apart rearwardly extending handles.
In another embodiment, body support members extend from the longitudinal portions of a forward portion of the main frame to form a first substantially triangular structure effective for supporting the body. A transverse member is preferably also connected between the triangular structures for reinforcing support of the body.
In yet another embodiment of the invention, the wheelbarrow is configured as a kit wherein first and second side frames are coupled together. The first side frame comprises a first longitudinal portion and a first leg structure attached to the first longitudinal portion of the first frame, which first leg structure includes a substantially straight base portion configured for aligning with and engaging ground when the wheelbarrow is in a stationary position. The second side frame comprises a second longitudinal portion and a second leg structure attached to the second longitudinal portion of the second frame, which second leg structure includes a substantially straight base portion configured for aligning with and engaging ground when the wheelbarrow is in a stationary position. A lateral member is capable of being coupled between the first longitudinal portion of the first side frame and the second longitudinal portion of the second side frame. A first lateral cross brace is capable of being coupled between the rearward portion of the first leg structure and the lateral member, and a second lateral cross brace is capable of being coupled between the rearward portion of the second leg structure and the lateral member. At least one axle is capable of being mounted to the first and second side frames, and at least one wheel is capable of being mounted onto the at least one axle, so that the at least one wheel is rotatable relative to the first and second side frames. A body capable of being removably mounted to the first and second side frames for supporting the load.
For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
In the following discussion, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be obvious to those skilled in the art that the present invention may be practiced without such specific details. In other instances, well-known elements have been illustrated in schematic or block diagram form in order not to obscure the present invention in unnecessary detail. Additionally, for the most part, details concerning welded connections and the like have been omitted inasmuch as such details are not considered necessary to obtain a complete understanding of the present invention, and are considered to be within the skills of persons of ordinary skill in the relevant art.
It is noted that structural members depicted herein are preferably tubular members, though they may alternatively comprise other cross-section configurations such as square, rectangular, triangular, I-beam, U-beam, and the like. Structural members are preferably welded together, though any suitable means or combination of means, such as bolting, may be employed to join members together. The structural members may be fabricated from any of a number of different materials, such as steel, aluminum, or the like.
For definitional purposes, the following terms will be used for referring to the fully assembled wheelbarrow in normal use. The term “horizontal” refers to the direction parallel to a surface (e.g., ground) on which the wheelbarrow is supported in normal use. The term “vertical” refers to a direction substantially perpendicular to the horizontal direction. The term “front” or “forward” refers to the end of the wheelbarrow proximate to the wheel (described below) of the wheelbarrow. The term “rear” or “rearward” refers to the end opposite the front end of the wheelbarrow. The term “point” refers to an area approximating the size of a cross-section of a member proximate to the “point”.
Referring to
The frame 102 includes a longitudinal portion 110 which extends generally through the length of the wheelbarrow 100. As shown more clearly in
As also shown in
Referring back to
Two forward cross braces 118 and two rearward cross braces 120 are secured, preferably via welding, between the longitudinal portion 110 and each leg structure 116 to form a substantially triangular truss structure. More specifically, each forward cross brace 118 is preferably secured (e.g., welded) at a first end 118a proximate to the second end 116a″ of the forward portion 116a and the first end 116b′ of the base portion 116b of each leg structure 116, and is preferably secured (e.g., welded) at a second end 118b proximate to a point 110c interposed between the points 110a and 110b of the respective longitudinal portion 110. Each rearward cross brace 120 is preferably secured (e.g., welded) at a first end 120a proximate to the second end 116b″ of the base portion 116b and second end 116c″ of rearward portion 116c of each leg 116, and is preferably welded at a second end 120b proximate to the point 110c interposed between the points 110a and 110b of the respective longitudinal portion 110.
In a preferred embodiment, two forward body support members 130 are welded at first ends 130a to a forward portion of the longitudinal portion 110, and two rearward body support members 132 are welded at first ends 132a to the longitudinal portion 110, and second ends 130a and 132b of respective body support members 130 and 132 are welded together to form a substantially triangular structure effective for supporting the body 104. As shown most clearly in
The body 104 is secured to the frame 110 in a conventional manner using fasteners, such as bolts and nuts, rivets, and/or the like 140.
In operation, the wheelbarrow 100 is operable in a “stationary” mode, wherein it positioned substantially as shown in
In
By the use of the present invention heavy loads, such as a load of stones, bricks, dirt, and the like, may be moved using a wheelbarrow that is more rigid, more reliable, and able to greater loads with a greater life expectancy than is possible using wheelbarrows disclosed in the prior art.
Handles 604 are preferably attached to rear of the side frames 606 and 608 by way of fittings (e.g., pipe fittings) 632 and mechanical fasteners 642, such as bolts and nuts. Handle grips 602 are preferably fitted to the handles 604. and secured thereto by friction, though a conventional adhesive (not shown) may be employed for same.
A nose piece 610 is preferably fitted to the front ends of the side frames 606 and 608 by way of fittings 630 (e.g., pipe fittings) and fasteners 611. Left and right body supports 612 and 614 (previously referred to as body support members 130 and 132), respectively, are positioned on respective left and right wide frames 606 and 608, respective, and preferably secured thereto by way of fasteners 613, such as bolts and nuts.
A wheel and tire 618 is preferably rotatably mounted on an axle 622 which is extended through the sleeves 623 attached (e.g., by tack welds) to the side frames 606 and 608, and secured thereto by way of nuts 624. A spacer 620 is preferably positioned on the axle 622 on each side of the wheel 618 to keep the wheel substantially centered on the axle.
A tub (or flat bed, as discussed below) 626 is preferably positioned on the side frames 606 and 608 and against the tub supports 612 and 614, and is secured thereto by way of fasteners 614 and 615, such as bolts and nuts. A tub support cross-brace 616 (previously referred to as 134 and 534) is preferably interposed between the tub supports 612 and 614 and tub 626.
As exemplified in
As exemplified in
Operation of the wheelbarrow 600, once assembled, is substantially similar to the wheelbarrows 100 and 500 discussed above. It is noted that the main frame, as depicted by
By the use of the alternate embodiment of the present invention exemplified by
Operation of the wheelbarrow 1100, once assembled, is substantially similar to the wheelbarrows 100, 500, and 600 discussed above with respect to
By the use of the alternate embodiment of the present invention exemplified by
In a preferred embodiment, illustrated in
The first end 700′ is narrower than the second end 700″ such that the spout 700 may receive liquid, fluid-like substances, or other materials from the second end 700″ and funnel them into the first end 700′. In addition, the spout 700 has sides 701 extending upward vertically from the spout for directing liquid or fluid-like material toward the first end 700′. Thus allowing material contained in body 104 to be easily and precisely poured into the location of a user's choosing.
Another preferred embodiment of the wheelbarrow of
It is understood that the present invention may take many forms and embodiments. Accordingly, several variations may be made in the foregoing without departing from the spirit or the scope of the invention. For example, the wheel and tire 106 may be supplemented with a second wheel and tire. Each of the portions 116a, 116b, and/or 116c of the leg 116 may constitute separate members that are welded together. An engine may be positioned within the frame 102 under the body 104 for propelling the wheelbarrow, under the guidance of a person. Rear wheels may be provided for the wheelbarrow to enable a person to move the wheelbarrow without lifting the rear end of the wheelbarrow. It is understood, too, that the connection of the forward cross braces 118 to the leg structures 116 may be in closer proximity to the first end 116b′ of the base portion 116b of each leg structure 116 than is depicted in
Having thus described the present invention by reference to certain of its preferred embodiments, it is noted that the embodiments disclosed are illustrative rather than limiting in nature and that a wide range of variations, modifications, changes, and substitutions are contemplated in the foregoing disclosure and, in some instances, some features of the present invention may be employed without a corresponding use of the other features. Many such variations and modifications may be considered obvious and desirable by those skilled in the art based upon a review of the foregoing description of preferred embodiments. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the invention.
Number | Date | Country | |
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61385476 | Sep 2010 | US |