Holding Device for Test Sheet Positioning and Control
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Solution Overview
Problem
In metal working machine tools, especially rivet machines, performing metal working operations on test sheets is hazardous due to the need for manual handling, which requires two people and increases the risk of accidents as the user must operate controls with one hand while trying to position the test sheet in the working region.
Innovation Solution
A holding device with a receiving arrangement for the test sheet and a pushbutton arrangement that allows a single user to safely position the test sheet and control the metal working operation, ensuring the user maintains a safe distance from the working region and requires both hands for operation, utilizing a portable design with ergonomic features and safety switches for secure actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual positioning of test sheet is performed by user in working region, then positioning flexibility is improved, but safety deteriorates due to risk of work accidents
Solution Approach 1:
A holding device acts as an intermediary between the user and the test sheet positioning task. The device includes a receiving arrangement that engages with the test sheet and a handle arrangement that extends from the receiving arrangement away from the working region, allowing the user to position the test sheet while maintaining a safe distance from hazardous areas.
2Reliability
If user operates control arrangement with both hands from distance, then safety is improved, but positioning capability deteriorates as user cannot hold test sheet simultaneously
Solution Approach 1:
The holding device merges the positioning function and the control activation function into a single integrated unit. The pushbutton arrangement is incorporated into the handle arrangement, allowing the user to control the metal working step while maintaining grip on the test sheet positioning device, eliminating the need for separate hand operations.
3Reliability
If two people are required for test sheet operation, then safety monitoring is improved, but operational complexity deteriorates due to coordination requirements
Solution Approach 1:
The holding device enables a single user to independently perform both positioning and control functions. The integrated design with the pushbutton arrangement in the handle allows one person to safely operate the metal working step on test sheets without requiring coordination with another person, reducing operational complexity while maintaining safety.
Data Source
AI summary
A holding device for a test sheet includes a receiving arrangement for engagement with the test sheet, a handle arrangement connected rigidly to the receiving arrangement for a user for positioning the test sheet, and a pushbutton arrangement for producing a switching signal on the basis of an actuation by the user.