Lifting Arm Attachment Layout for Variable Waste Container Heights
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Solution Overview
Problem
Waste collection vehicles face challenges in efficiently adjusting identical rear sections to varying collection container heights due to differing dimensions, leading to additional production and assembly costs from using adapter components.
Innovation Solution
A lifting arm with adjustable attachment points and reinforcing elements, allowing for identical rear sections to be adapted to different container heights, eliminating the need for additional adapters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If collection containers are made in various sizes to meet diverse customer requirements, then customer satisfaction and market adaptability improve, but production costs increase due to the need for different adapter components
Solution Approach 1:
The lifting arm is designed with multiple attachment points (first attachment point for actuator, second attachment point for collection container, third attachment point for rear section, fourth attachment point for pull lever) that can accommodate different container heights. This universal design allows a single lifting arm model to serve multiple container sizes without requiring size-specific adapters, thereby reducing production costs while maintaining adaptability.
Solution Approach 2:
The lifting arm incorporates adjustable attachment points with varying vertical spacings. The distance between the second and third attachment points, as well as between the first and fourth attachment points, can be adapted to different height differences between rear sections and collection containers. This dynamic adjustability eliminates the need for multiple fixed adapter components.
2Adaptability or versatility
If collection containers vary in height, then customer-specific requirements are met, but additional adapter components are required increasing assembly complexity
Solution Approach 1:
The lifting arm integrates multiple functions into a single component: it provides structural support, enables height adaptation through variable attachment point spacing, and facilitates the connection between the actuator, collection container, and rear section. By merging these functions into one component rather than using separate adapters, the assembly process is simplified while maintaining height adaptability.
3Productivity
If identical rear sections are used across different container heights, then production efficiency improves, but the height difference must be compensated requiring additional components
Solution Approach 1:
The lifting arm is divided into functional segments with distinct attachment points at specific vertical intervals. The side walls contain recesses arranged in pairs that form these attachment points. This segmentation allows the identical rear section to be mounted at different heights by selecting appropriate attachment point combinations, eliminating the need for additional compensating components while maintaining production efficiency.
Data Source
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AI summary
The invention relates to a lifting arm (1) for a waste collection vehicle, comprising two side walls (2, 3) with recesses (4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b) arranged in pairs aligned with each other, which are designed to form attachment points, with a first attachment point A at which the lifting arm (1) can be connected to an actuator, a second attachment point B at which the lifting arm (1) can be connected to a collection container (8), a third attachment point C at which the lifting arm (1) can be connected to a rear section (9), and a fourth attachment point D at which the lifting arm (1) can be connected to a pull lever (11), wherein the second attachment point B and the third attachment point C are spaced apart in the vertical direction H, the distance being adapted to a height difference between the rear section (9) and the collection container (8), and the first connection point A and the fourth connection point D are spaced apart in the vertical direction,the distance is adjusted to a height difference between the rear section (9) and the collection container (8).