Shopping cart

Abstract

The utility model provides a shopping cart which comprises a structure with wheels, and the structure bears a bag. The structure is formed from a hollow plastic rod having two different dimensions in cross section: a larger dimension and a smaller dimension, the structure comprising cross bars arranged parallel to the smaller dimension. The structure of the vehicle is very light, but very firm.

Description

Technical Field

[0001] The utility model is a shopping cart type, which comprises a structure with at least two wheels and a flexible bag or basket, wherein the flexible bag or basket is made of fabric or plastic. The structure of the cart is very light but also very strong. Background Art

[0002] Shopping carts consisting of a structure with wheels that carries bags or baskets are known in the prior art. The structure of these carts usually consists of an inverted U-shaped frame made of aluminum. This system is effective, but the cost of producing and handling aluminum is high and the resulting structure is relatively heavy.

[0003] Applicant is not aware of any shopping cart that could be considered similar to the present invention as no such cart exists in the prior art that is made of extruded plastic and has a sufficiently strong and durable structure. Utility Model Content

[0004] The utility model comprises a lightweight shopping cart according to the claims. Various embodiments of the shopping cart solve the problems of the prior art and provide noteworthy advantages.

[0005] The lightweight shopping cart comprises a structure with wheels, which carries the bags. The structure comprises a hollow bar made of extruded plastic, usually PVC, having two different dimensions in cross section: a larger dimension and a smaller dimension, and comprising crossbars, usually 2 crossbars, arranged parallel to the smaller dimension. The larger dimension provides longitudinal rigidity to the structure, and internal cross members ensure transverse rigidity.

[0006] The structure can be framed in various ways, but the preferred embodiment comprises straight bars joined by rods that pass through each bar between the crossbars. This provides sufficient strength for the joint because the crossbars support the rods and do not require bending of the bars.

[0007] The legs can also be made of the bars shown. In this case, the legs will be hinged to the structure by means of an axis, which is arranged between the crossbars of the legs and the crossbars of the structure.

[0008] Other variations are shown below. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following drawings are provided to enhance the understanding of the present invention.

[0010] Figure 1 A side view of an example of an embodiment of a shopping cart.

[0011] Figure 2It is a front view of the second example.

[0012] Figure 3 A cross-sectional view of an example of a rod with a through-rod at the end. DETAILED DESCRIPTION

[0013] The following is a brief explanation of one or more embodiments of the present invention, but is not limited to the examples shown.

[0014] Figure 1 and Figure 2 An example of an embodiment formed by a structure 1 and a bag 2 is shown. The structure 1 is made of a series of plastic rods 3. The structure 1 shown is formed by two rods 3, which are joined together at different points by a connecting rod 31 and terminate in wheels 4 and handles 32 or grips. Two hinged legs 5 also terminate in the wheels, which extend from the structure. The bag 2 is mounted with a clasp at the top and is arranged inside the structure 1. The bag 2 is fixed to the structure 1 in such a way that it can be removed. The connecting rod 31 can serve as an axle for the wheel 4.

[0015] Figure 3 A cross section of a rod 3 forming the structure 1 is shown. It can be seen that the rod 3 is hollow, has an elliptical cross section, and the larger dimension of the elliptical cross section is approximately twice the smaller dimension of the elliptical cross section. There are two crossbars 6, which are arranged parallel to the direction of the smaller dimension and are spaced apart from each other by a short distance (for example, the two crossbars 6 are spaced apart from each other by a distance of 15-25% of the larger dimension). These crossbars 6 have two functions: on the one hand, these crossbars 6 contribute to mechanical strength, and on the other hand, these crossbars 6 form an internal space through which through-type connecting rods, screws, rivets or any other elements can pass without affecting the structural strength of the rod 3. Thus, the legs 5 can be hinged on the through-type connecting rods passing between the crossbars 6. Figure 3 The ends of the link 31 are shown and how they intersect the crossbar 6 to provide additional strength.

[0016] The legs 5 can also be made of similar bars 3. As can be seen in the figures, both the legs 5 and the structure 1 are made of straight bars 3, so that the joint between the legs 5 and the structure 1 comprises a connecting rod which passes through the bars 3 between the crossbars 6.

[0017] A base 7 may be fixed at the bottom of the bag 2, which base 7 is fixed to the rod 3 to provide support for the bag.

[0018] The rod 3 can be made of plastic, for example, PVC, and the rod 3 can be manufactured by extrusion. Polypropylene, polyethylene, polystyrene, ABS and other materials specially formulated for similar purposes can also be used.

Claims

1. A shopping cart, comprising a structure (1) with wheels (4), the structure (1) carrying a bag (2), characterized in that: The structure (1) is formed by a hollow plastic rod (3) having two different dimensions in cross section: a larger dimension and a smaller dimension, and the structure (1) contains a crossbar (6) arranged parallel to the smaller dimension.

2. The shopping cart according to claim 1, characterized in that: The rods (3) are straight and are joined by a connecting rod (31) passing through each rod (3) between two crossbars (6).

3. The shopping cart according to claim 1, characterized in that: The shopping cart comprises a leg (5) made of a hollow rod (3) with a crossbar (6), the leg (5) being hinged to the structure (1) by an axle or axle, the axle or axle being arranged between the crossbar (6) of the structure (1) and the crossbar (6) of the leg (5).

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