Shopping Cart Basket Height Adjustment Latching Mechanism
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Solution Overview
Problem
Conventional shopping carts lack the ability to adjust height to accommodate users of different heights and do not incorporate features like product sensing and separation.
Innovation Solution
A shopping cart design featuring a base with wheels and legs, a basket with a latching mechanism that allows vertical adjustment, a product sensor, and a product separator, where the latching mechanism includes an activator and bias members to secure the basket at various heights, and a product sensor that identifies items and announces their names or costs via a controller and speaker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the basket is fixed to the base, then the structure is simple and stable, but the height cannot be adjusted to accommodate users of different heights
Solution Approach 1:
The basket is designed with a dynamic latching mechanism that allows it to move between fixed positions. The latching pins can engage with different openings along the legs, enabling height adjustment while maintaining stability when latched. This transforms the static fixed-basket design into a dynamic adjustable system.
Solution Approach 2:
The adjustment mechanism is segmented into discrete positions marked by multiple openings along the legs. The latching pins engage with these segmented positions, allowing the basket to be adjusted to specific height levels. This segmentation provides clear, predetermined adjustment points while maintaining structural integrity.
2Ease of operation
If the latching pins are constantly engaged, then the basket is securely fixed, but the user cannot adjust the height
Solution Approach 1:
The latching mechanism is designed to be self-latching through spring-loaded pins that automatically engage with the openings when the basket is positioned. The user simply needs to release the pins to adjust height, and the system automatically secures itself at the desired position without requiring manual locking actions.
Solution Approach 2:
The adjustment process involves periodic engagement and disengagement of the latching pins. The pins are engaged to secure the basket at a position, disengaged to allow movement to a new position, and re-engaged to secure the new position. This periodic action enables both security and adjustability.
3Adaptability or versatility
If the basket can move freely up and down, then height adjustment is easy, but the basket cannot be secured at specific positions
Solution Approach 1:
The system provides dynamic position variability through multiple openings along the legs, allowing the basket to be positioned at different heights. When the latching pins engage with these openings, the basket becomes stable at the selected position, combining positional flexibility with operational stability.
Solution Approach 2:
The latching pins are extracted as separate components that can be independently engaged or disengaged from the openings. This allows the basket to either be secured at a specific position (when pins are engaged) or move freely between positions (when pins are disengaged), providing both stability and adjustability as needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables height adjustment for user comfort, integrates product sensing for identification and announcement, and provides a product separator for organized storage, enhancing usability and user experience.
Implementation Method 1
a bias member to bias the activator from its biased position to its normal position
Data Source
AI summary
A shopping cart has a base, a basket that moves up and down, and a latching mechanism to secure the basket to the base in a variety of vertical positions. The base has wheels, and legs extending upwardly. The basket has receivers to receive the legs of the base. The latching mechanism has an activator, a bias member, and latching pins. The activator moves from a normal position to a biased position to move the latching pins from an engaged position to a disengaged position. The latching pins are removed from the openings in the legs when the activator is in the biased position, and the latching pins engage openings in the legs when the activator is in the normal positon to secure the basket at a variety of positions about the legs.