Foldable Picking Ladder Cart with Pivotally Connected Loading Boards
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Solution Overview
Problem
Conventional picking ladder carts occupy large spaces when not in use, leading to waste of storage space and potential safety hazards in warehouses.
Innovation Solution
A foldable picking ladder cart design featuring pivotally connected upper and lower loading boards, braces, and wheels, allowing the cart to be compactly folded when not in use, with locking devices to secure the braces in supporting and folded positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a conventional picking ladder cart has a multilayered structure or large loading area, then the loading capacity is improved, but the occupied space when not in use increases
Solution Approach 1:
The picking ladder cart employs a foldable structure where the loading boards can be rotated between horizontal and vertical positions, and the braces can be adjusted between extended and retracted states. This dynamic design allows the cart to transition from a large-volume configuration during use to a compact configuration for storage, resolving the contradiction between loading capacity and occupied space.
Solution Approach 2:
The foldable loading boards are designed to nest within each other when folded, with the upper loading board rotating to a vertical position and the lower loading board folding underneath. The braces also retract into a compact arrangement. This nesting arrangement minimizes the occupied volume when not in use while maintaining full loading capacity when deployed.
2Quantity of substance
If a conventional picking ladder cart has a multilayered structure or large loading area, then the loading capacity is improved, but the safety hazard increases
Solution Approach 1:
The dynamic foldable structure allows the cart to be easily collapsed to a compact, safe configuration when not in use or when passing through narrow aisles, eliminating the safety hazard of large structures in walkways. The locking mechanisms ensure stability during use, preventing accidental folding that could cause injury.
Solution Approach 2:
The picking ladder cart can be detached from the forklift or removed from the storage facility entirely when not needed, extracting the potential safety hazard from the workspace environment. The foldable design also allows it to be stored in remote locations or elevated areas where it does not obstruct worker movement.
3Volume of stationary object
If the upper brace is pivotally movable between supporting and folded positions, then the storage space efficiency is improved, but the device complexity increases
Solution Approach 1:
The upper brace is designed with pivotal connections at both ends, allowing it to rotate between a supporting position (extending outward to provide structural support) and a folded position (retracting parallel to the loading board). This simple rotational mechanism achieves compact storage without requiring complex actuators or multiple components.
Solution Approach 2:
The brace is divided into segments connected by pivotal joints, allowing each segment to move independently. This segmentation enables the brace to fold into a compact configuration while maintaining structural integrity when extended, achieving space efficiency without excessive complexity.
4Volume of stationary object
If the lower brace is pivotally movable between supporting and folded positions, then the storage space efficiency is improved, but the device complexity increases
Solution Approach 1:
The lower brace employs pivotal connections that allow it to rotate between a supporting position (providing structural support when the cart is in use) and a folded position (retracting to minimize storage volume). This simple rotational mechanism achieves compact storage without requiring complex actuators or multiple components.
Solution Approach 2:
The lower brace is segmented with pivotal joints that enable independent movement of each segment, allowing the brace to fold into a compact configuration while maintaining structural integrity. This segmentation achieves space efficiency with minimal added complexity.
Data Source
AI summary
A foldable ladder cart including a main shaft, an upper loading board, a lower loading board, an upper brace, and a lower brace is provided. The upper loading board is connected to the main shaft, and is pivotally movable between a first and a second position. The lower loading board is connected to the main shaft, and is pivotally movable between a third and a fourth positions. The upper brace is connected to the upper loading board and the main shaft; the lower brace is connected to the main shaft and the lower loading board. When the upper and the lower braces are in supporting positions, the upper loading board and the main shaft are in the first and the third positions. When the upper and the lower braces are in folded positions, the upper loading board and the main shaft are in the second and the fourth positions.