Modular Pallet Jack with Interchangeable Fork Tines
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Solution Overview
Problem
Larger pallet lifts are often too wide for certain applications and have long handles that complicate maneuvering in tight spaces, limiting their versatility and ease of use.
Innovation Solution
A modular pallet jack with a compact upright frame and interchangeable fork tine assemblies, featuring a lift mechanism and wheels, which allows for different fork tine configurations and an optional deployable shelf, enhancing maneuverability and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If larger pallet lifts are used to move more pallets at one time, then productivity is improved, but the device becomes too wide for certain applications
Solution Approach 1:
The pallet jack is divided into separate modular components: a base lift assembly and interchangeable fork tine assemblies. This segmentation allows the fork tines to be replaced independently to match different pallet sizes, enabling the same compact base to handle varying productivity requirements without increasing its footprint.
Solution Approach 2:
The system incorporates dynamic adaptability through interchangeable fork tine assemblies that can be swapped based on the specific pallet handling task. This dynamic configuration allows the lift to adjust its capacity for different applications while maintaining a consistent, compact base dimensions.
2Power
If long handles are used on pallet jacks, then lifting capability is improved, but maneuverability in tight spaces deteriorates
Solution Approach 1:
The handle is extracted from the traditional long pivoting configuration and repositioned as a short, fixed component on the upright frame. This extraction and repositioning eliminates the maneuverability problems associated with long handles while the lifting capability is maintained through the separate lift mechanism that acts on the fork tines.
Solution Approach 2:
Instead of having long handles pivot from the rear bottom edge as in conventional designs, this invention inverts the approach by placing the handle grip portion at the rearward portion of the upright frame in a fixed position, effectively shortening the handle and improving maneuverability in tight spaces.
3Adaptability or versatility
If multiple fork tine configurations are needed, then adaptability is improved, but device complexity increases
Solution Approach 1:
The base lift assembly is designed as a universal platform that can accommodate multiple types of fork tine assemblies through standardized attachment points. This multi-functionality allows a single base unit to perform various pallet handling tasks by simply changing the fork tine configuration, improving adaptability without proportionally increasing overall system complexity.
Solution Approach 2:
By segmenting the system into a universal base and specialized fork tine assemblies, the patent reduces complexity compared to having completely different pallet jack designs for each application. The standardized interface allows easy interchangeability while maintaining a relatively simple base structure.
Data Source
AI summary
A lift for a fork tine assembly includes a generally upright frame having at least one handle grip portion at a rearward portion thereof. The handle grip portion is fixed relative to the frame. A lift mechanism is secured to the frame. The lift mechanism is capable of attaching to and raising and lowering at least one fork tine. A plurality of wheels support the frame. The at least one fork tine may be part of a first fork tine assembly that can be selectively removed from the lift and replaced with a different configuration fork tine assembly. An optional shelf is provided on the frame for convenience but may be pivoted out of the way when not in use.