Transfer Tool Head Cap Elastic Positioning Mechanism
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Solution Overview
Problem
Conventional transfer tools with a head cap that can lock in close or open positions near a pivot shaft are prone to unintended movement, exposing the transfer head after use or covering it during operation.
Innovation Solution
A transfer tool with a pivotally mounted head cap and an urging mechanism near the pivot shaft that elastically urges the head cap towards the close or open position, ensuring it is reliably held in either state, using a projection and cam face interaction or connecting arms with bearing elements to prevent unwanted movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the head cap is locked only by moving to close or open position using recess and projection engagement, then the structure is simple, but the head cap may move unintentionally from near close position toward open position after use
Solution Approach 1:
The patent introduces an urging mechanism that changes the positional parameters of the head cap by providing elastic urging forces. This mechanism includes a urging portion that elastically urges the head cap toward the close position and a urging mechanism portion that elastically urges the head cap toward the open position, thereby stabilizing the head cap position without adding complex locking structures.
2Device complexity
If the head cap is locked only by moving to close or open position using recess and projection engagement, then the structure is simple, but the head cap may move from near open position toward close position during operation
Solution Approach 1:
The patent introduces an urging mechanism that changes the positional parameters of the head cap by providing elastic urging forces. This mechanism includes a urging portion that elastically urges the head cap toward the close position and a urging mechanism portion that elastically urges the head cap toward the open position, thereby stabilizing the head cap position without adding complex locking structures.
3Object-affected harmful factors
If the head cap is covered to protect the transfer head, then the transfer head is protected, but the transfer head cannot be accessed during operation
Solution Approach 1:
The patent makes the head cap dynamically switchable between closed and open states. The head cap can be rotated to the open position to expose the transfer head for access during operation, and then rotated to the closed position to protect the transfer head after use. This dynamic capability allows the system to adapt between protection and accessibility modes.
Solution Approach 2:
The patent introduces an urging mechanism that changes the positional parameters of the head cap by providing elastic urging forces. This mechanism includes a urging portion that elastically urges the head cap toward the close position and a urging mechanism portion that elastically urges the head cap toward the open position, thereby stabilizing the head cap position without adding complex locking structures.
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
Prevents the head cap from moving from the close position to the open position after use, exposing the transfer head, and from the open position towards the close position during operation, maintaining secure coverage or exposure as needed.
Implementation Method 1
the head cap is urged by elastically deforming a portion of the head cap near the projection or a portion of the transfer tool body provided with the cam face in a state where the projection and the cam face abut against each other
Data Source
AI summary
The present invention provides a transfer tool in which a transfer tape supplied from a supply reel rotatable around a spindle is wound around a winding reel through a transfer head, comprising a transfer tool body which holds at least the supply reel and the winding reel, the transfer head provided on the transfer tool body, a head cap which is pivotally mounted on the transfer tool body or the transfer head through a pivot shaft portion and which can turn between a close position where the transfer head is covered and an open position where the transfer head is exposed, and an urging mechanism provided near the pivot shaft portion, the urging mechanism elastically capable of urging the head cap, toward the close position when the head cap is located closer to the close position than a dead point provided at only one location near an intermediate portion between the close position and the open position, and toward the open position when the head cap is located closer to the open position than the dead point.