Industrial Truck Wheel Arm Tip Rocker Mounting
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Solution Overview
Problem
Existing industrial trucks with wheel arms face challenges in achieving narrow wheel arms while maintaining wide load wheels, which affects rolling behavior and stability.
Innovation Solution
The industrial truck design features a wheel arm tip with a rocker mounted on a bearing projection, where the rocker forms the lateral boundary, allowing wider load wheels with improved rolling behavior and enhanced stability by eliminating the need for side walls that extend over the entire height, enabling better force transmission and absorption of collision forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the wheel arm tip is designed with side walls extending over the entire height to provide lateral support, then the structural stability is improved, but the width of the wheel arm increases and the load wheel width is reduced
Solution Approach 1:
The bearing projection extends in the longitudinal direction (another dimension) rather than relying on side walls extending in the lateral dimension. This dimensional shift allows the bearing structure to provide support without increasing the wheel arm width, thereby resolving the contradiction between structural stability and compact width.
Solution Approach 2:
Instead of using side walls to provide lateral support (conventional approach), the invention inverts the approach by using a bearing projection that extends longitudinally to provide support through a different structural arrangement. The rocker mounted on the bearing projection provides the necessary support function without requiring extended side walls.
2Reliability
If the load wheels are made wider to improve rolling behavior, then the rolling performance is improved, but the wheel arm width must increase
Solution Approach 1:
The bearing projection extends in the longitudinal dimension to provide structural support, which decouples the support function from the lateral width. This allows load wheels to be made wider for improved rolling behavior without necessarily increasing the overall wheel arm width, as the support is provided through the longitudinal extension of the bearing projection rather than lateral extension of side walls.
3Ease of manufacture
If the rocker is mounted to the side walls of the wheel arm tip, then the mounting is simplified, but the lateral boundary is constrained and load wheel width is reduced
Solution Approach 1:
Instead of mounting the rocker to the side walls (conventional approach), the invention inverts the mounting arrangement by attaching the rocker to a bearing projection that extends from the bearing body. This inversion allows the load wheels to be positioned wider apart while still maintaining simple mounting through the bearing projection structure.
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
This configuration results in narrower wheel arms with wider load wheels, improved rolling behavior, and enhanced collision resistance, ensuring continued operation even in the event of impacts.
Implementation Method 1
The load wheels are each rotatably mounted at one end of a rocker, the rocker being pivotably mounted on the bearing projection of the bearing body in an area between the load wheels
Data Source
Figure 1~4
AI summary
Industrial truck with a pair of wheel arms, each having a wheel arm tip (10) at its free end, each of which has a bearing body (11) and a pair of load wheels (36, 38), wherein the load wheels are each rotatably mounted on a rocker (34) and the rocker is pivotably mounted on the bearing body (11) in an area between the load wheels, wherein the bearing body of the wheel arm tip has a bearing projection on which the rocker (34) is mounted such that the rocker laterally limits the wheel arm tip (10).