Conveyor Pinch-Zone Guard for Variable Roller Spacing
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Solution Overview
Problem
Existing conveyor protection elements are not adequately adaptable to different roller spacings, can be inadvertently demounted, and do not provide complete safety against pinch zones.
Innovation Solution
A protection part with a base and projecting walls that fit between rollers, secured by fixing means to the conveyor's lateral profiled members, requiring partial demounting of rollers for removal, and designed to prevent access to pinch zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If protection elements are clipped between adjacent rollers, then they can be easily mounted, but they cannot be adapted to different roller spacings and can be inadvertently demounted
Solution Approach 1:
The protection element incorporates an adjustable mechanism that allows it to adapt to different roller spacings dynamically. The element can be repositioned along the roller shaft and adjusted to maintain proper positioning regardless of the distance between rollers, transforming a static protection element into a dynamic one that responds to varying spatial conditions.
Solution Approach 2:
The protection element is designed with universal mounting capabilities that enable it to function across different roller configurations. By integrating multiple attachment points and adjustable positioning features, a single protection element design can serve multiple roller spacing requirements, reducing the need for multiple specialized components.
2Ease of operation
If protection elements are clipped between adjacent rollers, then they can be easily mounted, but they can be inadvertently demounted
Solution Approach 1:
The protection element incorporates a locking mechanism that automatically engages upon installation. The design includes features such as snap-fit connections, set screws, or interlocking components that secure the element to the roller shaft during the mounting process itself, preventing accidental removal without requiring additional securing steps.
Solution Approach 2:
The protection element uses an intermediary locking component or mechanism that acts as a mediator between the protection element and the roller shaft. This intermediary feature provides a secure connection point that prevents inadvertent demounting while maintaining the ease of initial installation through a straightforward mounting process.
3Reliability
If protection elements are designed to rotate with rollers, then they provide continuous protection, but they become complex and require attachment means to connect adjacent protection parts
Solution Approach 1:
The protection element is integrated directly with the roller shaft through a unified design where the protection element and mounting features form a single combined component. This merging eliminates the need for separate attachment means and complex connection mechanisms between adjacent protection parts, as each element is self-contained and attaches independently to its respective roller.
4Ease of operation
If protection elements use shaft clipping for retention, then they are easy to mount, but they risk angular offset and contact with drive belts due to wear
Solution Approach 1:
The protection element incorporates an asymmetric locking feature or keyed connection that prevents angular offset. The design includes non-circular mounting interfaces, such as hexagonal openings, oval slots, or cam-locked mechanisms, that allow the protection element to be securely positioned at a specific orientation relative to the roller shaft, eliminating the risk of rotational misalignment during operation.
Data Source
AI summary
A protection part intended to equip a conveyor includes two lateral profiled members between which a plurality of rollers extend transversely, each roller being mounted to pivot relative to the lateral profiled members via a mounting shaft, at least one of the rollers being motor-driven, and at least one drive belt connecting two of the rollers and defining pinch zones. The protection part includes a base with an opening through which the roller shaft passes, the base then being located between the roller and the profiled member, two protection walls extending on respective sides of the roller from said base so as to prevent access to the pinch zones, and a fixing element for retaining said protection part on the lateral profiled member.