Carrying Device Pivot Stop Mechanism
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Solution Overview
Problem
Existing carrying devices lack a simple, adaptable, and reliable mechanism for limiting the pivoting angle of a pivotably mounted carrying arm, which restricts their versatility and adjustability.
Innovation Solution
The carrying device incorporates a tube piece with coupling projections distributed over its circumference and an intermediate stop piece with supplementary coupling projections that interact with a stop element on the holding section, allowing for adjustable and step-wise angle limitation through the design of tongues or interlocking teeth, enabling a compact and versatile construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stop mechanism is added to limit the pivoting angle, then the reliability and control of the carrying device is improved, but the device complexity increases
Solution Approach 1:
The intermediate stop piece is inserted into the free end of the tube piece, creating a nested structure where the stop mechanism is housed within the existing carrying device structure. This nesting approach adds the stop function without requiring separate external components, thereby improving reliability while minimizing the increase in device complexity.
Solution Approach 2:
The intermediate stop piece acts as a mediator element that provides the stop function by interacting with both the tube piece (via coupling projections) and the holding section (via stop contour). This intermediary component enables reliable angle limitation while maintaining a relatively simple overall structure, as it integrates multiple functions into a single intermediate element.
2Adaptability or versatility
If an intermediate stop piece with supplementary coupling projections is used, then the adaptability and adjustability of the pivoting angle is improved, but the manufacturing complexity increases
Solution Approach 1:
The stop mechanism is segmented into distinct functional elements: the tube piece with coupling projections, the intermediate stop piece with supplementary coupling projections and stop contour, and the holding section with stop element. This segmentation allows each component to be manufactured separately with standardized features, improving adaptability while managing manufacturing complexity through modular design.
Solution Approach 2:
The intermediate stop piece serves multiple functions: it provides the stop contour for angle limitation, engages with coupling projections for secure attachment, and allows for adjustable positioning through its supplementary coupling projections. This multi-functionality improves adaptability while the standardized features keep manufacturing complexity manageable.
3Stability of the object's composition
If coupling projections and supplementary coupling projections are distributed over the circumference, then the stability and force distribution is improved, but the device complexity increases
Solution Approach 1:
The coupling projections on the tube piece and supplementary coupling projections on the intermediate stop piece are merged into a unified circumferential distribution pattern. This merging creates multiple engagement points around the circumference, improving stability and force distribution while the projections remain simple geometric features that do not significantly increase device complexity.
Data Source
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AI summary
A carrying device (1) with a pivotally mounted support arm for carrying equipment is described. The carrying device (1) has a pipe section (2) that is pivotably mounted on a holding section (3). A stop is provided between the pipe section (2) and the holding section (3) to limit the pivot angle. The pipe section (2) has coupling projections distributed around its circumference. A stop intermediate piece (9), adapted to the circumference of the pipe section (2), is provided, with supplementary coupling projections distributed around its circumference. The supplementary coupling projections are designed to engage in the spaces (13) between adjacent coupling projections of the pipe section (2). The stop intermediate piece (9) has a stop contour that interacts with a stop element of the holding section (3).