Swingable Marking Member for Continuous Corner-Part Marking
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Solution Overview
Problem
Conventional marking devices fail to provide clear marking at corner parts of fastened members such as steel plates, bolts, and washers due to insufficient pressing by felt bodies, leading to discontinuous marks.
Innovation Solution
A marking device with a swingable marking member and a housing that ensures the marking member forms angles greater than 90 degrees with the fastening member, using a protruding part to press against the marking object, and includes a lock mechanism to regulate operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a felt body is used for marking, then the marking process is simplified, but the marking at corner parts becomes insufficient and discontinuous
Solution Approach 1:
The marking member is made swingable about a support shaft, allowing it to dynamically adapt its position and angle during the marking operation. This dynamic positioning enables the marking member to reach corner parts that would be inaccessible to a fixed marking mechanism, ensuring continuous marks while maintaining operational simplicity
Solution Approach 2:
The invention introduces angular positioning capability by allowing the marking member to swing in addition to linear movement. This adds a rotational dimension to the marking mechanism, enabling it to access corner regions and ensure continuous marking across all surfaces including vertical and angled surfaces
2Ease of operation
If manual marking is performed, then flexibility is maintained, but worker safety and accuracy are compromised in dangerous places
Solution Approach 1:
The marking device is designed to be self-positioning through its swingable mechanism, which automatically adapts to the geometry of the fastening member and marking objects. This eliminates the need for manual positioning adjustments by the worker, reducing exposure to dangerous environments while maintaining marking flexibility and accuracy
Solution Approach 2:
The swingable marking member acts as an intermediary between the operator and the marking objects in dangerous positions. It extends the operator's capability to mark difficult-to-reach areas without requiring direct manual intervention, thereby improving safety while maintaining operational flexibility
3Device complexity
If the marking member is fixed in position, then structural simplicity is maintained, but corner parts cannot be properly marked
Solution Approach 1:
The marking member is made swingable about a support shaft, allowing it to dynamically adapt its position and angle during the marking operation. This dynamic positioning enables the marking member to reach corner parts that would be inaccessible to a fixed marking mechanism, ensuring continuous marks while maintaining operational simplicity
Solution Approach 2:
The marking device is segmented into a fixed housing and a swingable marking member. This segmentation allows the housing to remain structurally simple while the marking member gains independent movement capability, resolving the conflict between structural simplicity and corner marking effectiveness
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
Enables clear, continuous marking at corner parts without discontinuity, improving marking accuracy and safety in challenging environments.
Implementation Method 1
a knock body that is assembled to the housing with an elastic member interposed therebetween, and movable in a base end direction from a tip end of the fastening member
Implementation Method 2
a marking member that is coupled to the housing via a support shaft and is swingable toward the fastening member with the support shaft as a swing center
Data Source
AI summary
A marking device that targets a fastened member and a fastening member (5,6), the marking device comprising;a housing that covers the fastening member (5, 6); and a marking member that is coupled to the housing via a support shaft (30) and is swingable toward the fastening member (5, 6),characterized in thatwhen a vector having, as a start point, a marked corner part (MC1) and having the swing center (31) as an end point at is a first vector (V1a), anda vector having the marked corner part (MC1) as a start point, and is directed in a direction orthogonal to a central axis (C) of the fastening member (5) and away from the fastening member (5, 6) is a second vector (V2a),an angle (θ1) formed by these two vectors (V1a, V2a) is equal to or greater than 90 degrees and less than 180 degrees.