Lifting Table with Displaceable Push Handle for Battery Maintenance
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Solution Overview
Problem
Lifting tables with protruding loads pose safety risks and handling difficulties due to the limited lowering capability and risk of collision between the load and push handle, especially when working on vehicle batteries, which require a more ergonomic and space-efficient solution.
Innovation Solution
A mobile lifting table with a vertically adjustable and horizontally displaceable push handle, allowing ergonomic movement and safe handling of loads exceeding the table top, featuring a scissor linkage lifting unit and hydraulic operation, with the push handle adjustable between pull-out and insertion positions to prevent collisions and enable safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the push handle is fixed in the extended position to allow safe handling of protruding loads, then the risk of collision between load and push handle is reduced, but the storage space requirement increases
Solution Approach 1:
The push handle is made dynamically adjustable between extended and retracted positions along the longitudinal axis of the chassis. This allows the system to adapt its configuration based on operational needs (extended for safety during load handling) versus storage needs (retracted for compactness), resolving the contradiction between safety and space efficiency.
Solution Approach 2:
The push handle is separated from the fixed chassis structure and made independently movable. This segmentation allows the handle to be positioned independently from the main body, enabling it to extend forward to clear protruding loads during operation while being retractable to minimize the overall footprint during storage.
2Reliability
If the load is lowered to the height of the push handle for safe handling, then the risk of collision is reduced, but the ergonomic working height is compromised
Solution Approach 1:
The push handle's horizontal position is made dynamic rather than fixed. During load handling operations, the handle can be extended forward to clear protruding loads, allowing the load to be lowered to a safe height without compromising the user's ability to operate the device ergonomically, as the handle no longer obstructs the work area.
3Volume of moving object
If the push handle is retracted to save storage space, then the storage footprint is reduced, but the risk of collision between load and push handle increases
Solution Approach 1:
The system transitions from a static push handle configuration to a dynamic one that can be extended or retracted as needed. This allows the push handle to be retracted for compact storage while being extendable during operation to eliminate collision risks with protruding loads, thus resolving the contradiction between space efficiency and safety.
4Reliability
If the push handle is extended to clear protruding loads, then the safety is improved, but the device complexity increases
Solution Approach 1:
A simple linear guidance mechanism with locking means is introduced to enable the push handle to move between extended and retracted positions. This relatively straightforward mechanical addition provides the necessary safety functionality without creating excessive complexity, as it uses basic mechanical principles rather than complex systems.
Solution Approach 2:
The locking means are designed to allow the push handle to be easily positioned and locked by the user without requiring complex controls or additional power sources. The system serves itself through simple mechanical interaction, minimizing the need for complex control systems while still providing the safety benefits of an adjustable handle position.
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 safe and ergonomic handling of loads beyond the table top, reducing the risk of collision and allowing for efficient space-saving storage, while ensuring user safety during lifting and lowering operations.
Implementation Method 1
a lifting unit (14), in particular a hydraulic lifting unit (14)
Implementation Method 2
a lifting unit (14), in particular a scissor-type lifting unit (14)
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention relates to a lifting table (10) comprising a tabletop (12), a lifting unit (14), a chassis (16), and a push handle (18), wherein the push handle (18) is designed to be horizontally displaceable between an extended position and a retracted position. Furthermore, the present invention relates to the use of a lifting table (10) for replacing and maintaining vehicle batteries.