Multifunction Pen Dual-Core Refill Arrangement
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Solution Overview
Problem
Existing multifunction pens require burdensome switching operations between ballpoint pen and electromagnetic induction modes, which is inconvenient and inefficient.
Innovation Solution
A multifunction pen design with a shaft tube housing both a writing refill and an electromagnetic induction refill, where the writing refill is exposed at the tip end and the electromagnetic induction refill is exposed at the rear end, eliminating the need for switching operations by misaligning their axial centers and positioning the center of mass towards the rear end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both ballpoint pen core and electromagnetic induction core are included in the position indicator, then the device can perform both writing and electromagnetic induction functions, but switching between modes requires operation of a knock operation section which is burdensome
Solution Approach 1:
The position indicator is divided into two separate cores: a ballpoint pen core and an electromagnetic induction core. Each core is housed in a separate housing within the position indicator body, allowing them to function independently without requiring switching operations. The user can directly use either function by selecting the appropriate core.
Solution Approach 2:
The position indicator is designed to universally support both ballpoint pen writing and electromagnetic induction functions through the dual-core architecture. Both cores are permanently integrated into the position indicator body, enabling the device to perform multiple functions simultaneously without requiring mode switching or additional operational steps.
2Ease of operation
If both writing refill and electromagnetic induction refill are housed inside the shaft tube, then switching operation is eliminated, but the structural complexity of the shaft tube increases
Solution Approach 1:
The electromagnetic induction refill is nested within the shaft tube, while the writing refill is positioned in the housing that contains the shaft tube. This nested arrangement allows both refills to coexist within the compact pen structure without requiring complex switching mechanisms, as each refill is accessible through its own opening.
Solution Approach 2:
The two refills are arranged in different spatial dimensions and orientations within the pen body. The writing refill extends from the tip end while the electromagnetic induction refill extends from the rear end, utilizing different spatial arrangements to eliminate the need for switching operations while maintaining structural compactness.
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 seamless transition between writing and electromagnetic induction modes without operational switching, reducing the pen's size, improving usability, and protecting the electromagnetic induction refill from shocks.
Implementation Method 1
an electromagnetic induction coil is provided in the position indicator so as to resonate in response to electromagnetic waves of a specific frequency generated by the position detection device
Data Source
AI summary
A multifunction pen is provided including a refill for a writing implement such as a ballpoint pen on a tip end side and including an electromagnetic induction-based electromagnetic induction refill on a rear end side such that there is no need to perform a switching operation between the writing refill and the electromagnetic induction refill. The multifunction pen includes a shaft tube 10 including openings at both of a tip end and a rear end, a writing refill 40 that is housed inside the shaft tube 10 and that includes a writing tip exposed through the opening at the tip end, and an electromagnetic induction refill 50 that is housed inside the shaft tube 10, that is exposed through the opening at the rear end, and that is employed in electromagnetic induction-based input.