Description:FIELD OF INVENTION

[001] The present invention relates to shopping cart trolleys. Particularly, the present invention relates to a shopping cart trolley with self-levelling and nesting features for reducing user fatigue and optimizing floor space optimization.
BACKGROUND OF THE INVENTION

[002] Shopping cart trolleys play a crucial role in the transportation of various shipments. These carts helps the customers to easily add and remove products while shopping. However, traditional shopping cart trolleys in the domain of e-commerce and superstores exhibit inherent efficiencies and ergonomic challenges.
[003] The traditional design of trolleys necessitates the customers to engage in repetitive bending motions during loading and unloading of shipments from the cart, resulting in physical strain and musculoskeletal stress, and especially when dealing items of heavy weight.
[004] Moreover, to maintain ergonomic standards the trolleys are often underused which results in an increased number of trolleys required for the same volume of shipments. The utilization of increased number of trolleys often leads to a scenario where floor space becomes cluttered with an excess of trolleys. The excessive spatial footprint requires larger storage areas and hampers the overall flow and organization of the workspace.
[005] There are several patent applications that discloses shopping cart trolleys for transportation of various shipments. One such Chinese Patent Application CN105163998B relates to a shopping trolley including a basket (1) comprising a taper along the horizontal axis to facilitate horizontal nesting between the carts and is formed by the bottom (2) and four vertical sides, one of which is a vertical orientable swingable surface (3) to allow another trolley to pass during the nesting; a frame, fixed to the bottom (2) of the basket (1) and comprising at least three legs (6), each leg (6) further comprising at least one wheel (7); and the perimeter grip (5) extending along and over the entire perimeter of the upper edge of the basket (1) and is located in the vertical extension of each face of the basket (1). The entire upper surface of the perimeter handle (5) has a continuous appearance to prevent shoppers from more inclined to push the cart from one side than the other.
[006] Another United States Patent Application US20160082999A1 relates to a trolley (1) for shopping in malls and shopping centers including an L shaped frame (2) with at least 3 swivel wheels (3) adapted for conveyors, characterized by the L shaped frame (2) is heavier on its base and especially on its front part. It is also provided with a vertical area (11) divided by at least two horizontal axes (8) from which arises three rods (9) respectively fitted with a closing (10) for bags it also includes a managing bar (6) of the trolley (1) equipped with a control system (7) on the upper vertical area.
[007] In view of the problems associated with the above state of the art, there is a need for an improved shopping cart trolley that provides self-levelling and nesting features to reduce user fatigue and overcome the ergonomic concerns as well as spatial optimization.
OBJECTIVES OF THE INVENTION

[008] The primary objective of the present invention is to provide a self levelling and nesting shopping cart trolley.
[009] Another objective of the present invention is to reduce ergonomic strain on users.
[0010] Another objective of the present invention is to optimize floor space utilization.
[0011] Yet another objective of the present invention is to enhance the efficiency and usability of trolleys.
[0012] Other objectives and advantages of the present invention will become apparent from the following description taken in connection with the accompanying drawings, wherein, by way of illustration and example, the aspects of the present invention are disclosed.

SUMMARY OF THE INVENTION

[0013] The present invention relates to a self-levelling and nesting shopping cart trolley for reducing user fatigue and optimizing floor space. The self-levelling and nesting trolley mitigates user fatigue and streamlines storage and movement processes in e-commerce and superstores. The self-levelling and nesting trolley comprises of a handle, at least four rubber springs, a latch mechanism and a wire mesh. The handle of the trolley serves as the primary point of interaction for the users to manoeuvre the trolley. The rubber springs (120) are installed at a bottom plate of the compartment of the trolley. The rubber springs (120) are configured to provide longitudinal step movement of the bottom plate from 50 to 100mm per 2kg change in weight. The self-levelling mechanism in the present invention is achieved through the rubber springs (120) which adjusts the bottom plate of the trolley based on weight of the shipments. The bottom plate of the trolley is provided with a latch mechanism to facilitate nesting by securely detaching the latch from bottom plate and aligning the floating bottom to the side wall of the trolley. The compartment of the trolley to store items is made up of the wire mesh that prevents smaller items from falling out during transportation. The latch mechanism and the floating bottom plate optimizes storage space by aligning the floating bottom to the side wall of the trolley, resulting in efficient spatial utilization of the trolley in stores.

BRIEF DESCRIPTION OF DRAWINGS

[0014] A complete understanding of the present invention may be obtained by reference to the accompanying drawings, when taken in conjunction with the detailed description thereof and in which:

[0015] Figure 1 illustrates side view of the self-levelling and nesting shopping cart trolley.

[0016] Figure 2 illustrates top view of the self-levelling and nesting shopping cart trolley.

DETAILED DESCRIPTION OF THE INVENTION

[0017] The following description describes various features and functions of the disclosed system and method with reference to the accompanying figure. In the figure, similar symbols identify similar components, unless context dictates otherwise. The illustrative aspects described herein are not meant to be limiting. It may be readily understood that certain aspects of the disclosed system and method can be arranged and combined in a wide variety of different configurations, all of which are contemplated herein.

[0018] Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0019] Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.

[0020] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embodiments of the present invention are provided for illustration purpose only and not for the purpose of limiting the invention.

[0021] It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise.
[0022] It should be emphasized that the term “comprises/comprising” when used in this specification is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.
[0023] Accordingly, the present invention relates to a self-levelling and nesting shopping cart trolley (100). The shopping cart trolley (100) with self-levelling and nesting feature reduces user fatigue and optimizes floor space optimization. The present invention is specifically designed to address the ergonomic challenges associated with the movement and storage of small shipments. The present invention is designed with a floating base bottom dead zone that is used for storing the items, so as to increase the load carrying capacity by 30%. This carrying capacity efficiently helps in reducing the number of trolley (100) requirement in the stores.
[0024] Figure 1 and Figure 2 illustrates the side view and top view of the present invention. The present invention comprises a handle, at least four rubber springs (120), a latch mechanism (125) and a compartment (105) composed of wire mesh. The compartment (105) of trolley (100) consists of a pair of side plates (110) and a bottom plate (115).
[0025] The rubber springs (120) are configured to longitudinally move the bottom plate (115) by 50-100mm per 2kg change in weight. The self-levelling mechanism of the present invention allows longitudinal movement of the bottom plate (115) of the trolley (100) in response to change in weight, thereby reducing the user fatigue by adjusting height of the compartment of the trolley (100). The self-levelling mechanism of the trolley (100) maintains optimal balance and ergonomic positioning of the trolley (100). Further, the nesting mechanism of the present invention optimizes storage space by aligning the trolley (100) components in inactive state of trolley (100), resulting in efficient spatial utilization in e-commerce and superstore.
[0026] In a preferred embodiment, the handle of the self-levelling and nesting shopping cart trolley (100) serves as the primary point of interaction for the users to manoeuvre the trolley (100). The rubber springs (120) are mounted at bottom plate (115) of the trolley (100) to enable longitudinal step movement of 50-100mm per 2kg change in weight. The rubber springs (120) are floating rubber spring with vertical guide that changes bottom’s positions from 50~100mm per 2kg of weight change. Further, initial margin of 300mm is provided from the top considering that no human fatigue takes place up to this level. The rubber spring stroke is set at 600mm, resulting in a long stroke with total working stroke of 900mm to 1000mm.
[0027] In a preferred embodiment, the self-levelling mechanism incorporates at least four rubber springs (120) positioned at four corners of the bottom plate (115) of the trolley (100). The rubber springs (120) allows longitudinal movement of the bottom of the trolley (100) in response to change in weight that reduces the user fatigue. The bottom plate (115) adjusts by 50-100mm for every 2kg change in weight, ensuring that the trolley (100) maintains optimal balance and ergonomic positioning.
[0028] In an exemplary embodiment, the self-levelling mechanism enhances user comfort by minimizing the need for continuous bending, while also handling shipment of varying weights and densities.
[0029] The bottom plate (115) of the trolley (100) is provided with a latch mechanism (125) to facilitate nesting by securely detaching the latch from bottom plate (115) and aligning the floating bottom to the side wall of the trolley (100). The compartment (105) of the trolley (100) to store items is made up of the wire mesh that prevents smaller items from falling out during transportation. The latch mechanism (125) and the bottom floating plate optimizes storage space by aligning the trolley (100) components in inactive state of trolley (100), resulting in efficient spatial utilization in e-commerce and superstore.
[0030] In another preferred embodiment, during nesting the floating plate is fixed at any one of: the bottom plate (115); or removed to avoid collision during nesting. The floating plate is opened from the latch to match with side wall of the trolley (100). During nesting, the latch mechanism (125) opens from the bottom plate (115) and allows the floating bottom plate (115) to securely align with the side wall of the trolley (100). The nesting mechanism reduces the floor space required during storage periods.
[0031] The integration of self-levelling and nesting mechanism enhances the overall usability of the shopping cart trolley (100). This integration helps to maintain optimal balance and ergonomic positioning of the trolley (100).
[0032] The present invention exhibits following advantages:
• The self-levelling mechanism minimizes user fatigue by dynamically adjusting the trolley (100)’s position based on weight shipments, which reduces the need for continuous bending of the customer;
• The nesting mechanism facilitated by a latch mechanism (125) and floating top reduces the floor space required for storage;
• The present invention is versatile in handling shipments of varying weights and densities;
• The adaptability of varying weights ensures optimal balance and stability during transportation.

[0033] While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
, Claims:WE CLAIM:

1. A self-levelling and nesting shopping cart trolley (100), comprising:
i. a compartment (105) composed of a wire mesh, comprising:
a. a pair of side plates (110);
b. a bottom plate (115);
ii. at least four rubber springs (120) mounted at the bottom plate (115) of the trolley (100);
iii. a latch mechanism (125) detachably connected to the bottom plate (115);
wherein,
• the rubber springs (120) are configured to longitudinally move the bottom plate (115) by 50-100mm per 2kg change in weight, resulting self-levelling of the trolley (100);
• the rubber springs (120) stroke is preset at 600mm, resulting in a long stroke with total working stroke of 900mm to 1000mm;
• the latch mechanism (125) is configured to achieve a nesting mechanism in trolley (100) by opening the latch from the bottom plate (115) and aligning the floating bottom plate (115) to the side plates (110) of the trolley (100).

2. A self-levelling and nesting shopping cart trolley (100) as claimed in claim 1, wherein the compartment (105) of the trolley (100) composed of wire mesh prevents smaller items from falling out during transportation.

3. A self-levelling and nesting shopping cart trolley (100) as claimed in claim 1, wherein the latch mechanism (125) and the bottom floating plate optimizes storage space by aligning the trolley (100) components in inactive state of trolley (100), resulting in efficient spatial utilization in stores.

4. A self-levelling and nesting shopping cart trolley (100) as claimed in claim 1, wherein the floating plate during nesting is fixed at the bottom plate (115); or removed to avoid collision during nesting, so as to reduce floor space required during storage periods.