Movable Rear Cab Section for Battery Access

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Solution Overview

Problem

In industrial trucks with permanently mounted driver's cabs, accessing the battery compartment for replacement is cumbersome due to the need to fold the driver's seat and simultaneously open the battery cover, requiring significant space and effort.

Innovation Solution

The industrial truck design features a driver's cab with a fixed front part and a rear part that can be displaced longitudinally, allowing the rear part to be pushed back, thereby freeing up space in the cab to access the battery cover with minimal effort, and incorporating guide rails and rods for stable and easy movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the driver's seat is permanently mounted and the battery cover is fixed, then the driver's cab provides stable protection and structure, but accessing the battery compartment requires folding the driver's seat and opening the cover simultaneously, increasing the complexity of the operation

Engineering Contradiction:
Improvestructural stabilityVSAvoidbattery access operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The driver's cab is divided into a fixed front part and a movable rear part. The rear part can be displaced longitudinally to provide access to the battery compartment without requiring the driver's seat to be folded. This segmentation allows the battery access function to be independent from the driver's seat operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rear part of the driver's cab is made dynamically movable along guide rails. By displacing the rear part longitudinally, the battery cover becomes accessible without compromising the overall structural stability when the cab is in its closed position.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the driver's seat is folded to the side to access the battery, then the battery compartment becomes accessible, but significant space is required and the operation becomes cumbersome

Engineering Contradiction:
Improvebattery accessVSAvoidspace required in driver's cab
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

By separating the driver's cab into fixed and movable parts, the patent enables battery access through longitudinal displacement of the rear part rather than folding the driver's seat. This eliminates the need for additional lateral space that would be required if the driver's seat needed to be moved.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the battery cover is made easily accessible, then battery replacement becomes simpler, but the driver's cab structure becomes more complex

Engineering Contradiction:
Improvebattery cover accessVSAvoiddriver's cab structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces a movable rear part of the driver's cab that can be displaced along guide rails. This dynamic structure allows the battery cover to be easily accessible when the rear part is moved, while maintaining a relatively simple overall cab structure compared to systems with folding seats or multiple access mechanisms.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2518001B1Industrial truck with a driver's cab
Publication Date: 2013.07.10 JUNGHEINRICH AG
  • EP2518001B1 patent drawingFigure 1
  • EP2518001B1 patent drawingFigure 2~3
  • EP2518001B1 patent drawingFigure 4~5

AI summary

The truck (10) has a drive unit (12) that is coupled to a driver's cab (26) with a driver's seat (20). A battery compartment (56) is sealed with a battery cover below the driver?s seat. The driver's cab is comprised with a fixed front portion (28) and a displaceable rear portion (30). The drive unit is provided with a guide (50) for the displaceable rear portion so as to release the battery covering in retracted position of the rear portion of the driver's cab for battery change.