Shopping cart with auxiliary wheels

By installing an auxiliary wheel on the front wheel of the shopping cart and setting a flange and a fixed bracket, the problems of the shopping cart getting stuck on the moving walkway and the auxiliary wheel rolling are solved, achieving safe and convenient crossing of the comb plate and stable braking effect.

CN122186245APending Publication Date: 2026-06-12三普株式会社
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
三普株式会社
Filing Date
2025-11-21
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing shopping carts are prone to getting stuck at the comb plate of moving walkways, causing the front wheels to stop and potentially leading to collisions. Furthermore, wear on the brakes or deformation of the frame can cause the auxiliary wheels to roll unsafely.

Method used

A secondary wheel is installed on the front wheel of the shopping cart. The lower end of the secondary wheel is located on the upper side compared to the brake part, and a flange is formed on the outer circumferential surface. It is inserted into the groove of the moving walkway track to prevent the secondary wheel from rolling. The secondary wheel is supported by a fixed bracket to maintain stability.

Benefits of technology

This allows shopping carts to safely and conveniently cross the comb plate on moving walkways, preventing the auxiliary wheels from rolling, reducing wear on the brakes, and improving safety and convenience.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN122186245A_ABST
    Figure CN122186245A_ABST
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Abstract

The present invention relates to a shopping cart with a sub wheel, and a shopping cart with a sub wheel according to the present invention is characterized by comprising: a frame; front wheels formed with a protruding portion capable of being inserted into a rail groove of an upper surface of an automatic sidewalk on an outer peripheral surface, and arranged on both sides of a lower end of a front end portion of the frame; a brake portion limiting the rolling of the front wheels in a state in which the protruding portion of the front wheels is inserted into the rail groove of the upper surface of the automatic sidewalk; and a sub wheel arranged at a position protruding forward compared to the front wheels in order to contact a comb plate of the automatic sidewalk, a lower end portion of the sub wheel being separated upward from the ground supporting the lower end portion of the front wheels, and a separation interval between the lower end portion of the sub wheel and the ground being set to be below the thickness of the comb plate.
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