Cordless Position Pointer Sleeve Prevents Contact Dislodgement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cordless position pointers with removably mounted contacting members tend to dislodge from their housings due to displacing forces during position pointing operations, necessitating the replacement of the entire device when the contacting member wears out.
Innovation Solution
A cordless position pointer design featuring a housing with a projecting conductive portion and a removably fitted elastic contacting member, where a sleeve with a through-hole engages the housing to prevent displacing forces from dislodging the contacting member, allowing for easy replacement of the contacting member without compromising its secure fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the contacting member is removably fitted to the housing, then the contacting member can be replaced when abraded, but the contacting member may be dislodged by displacing force during position pointing operations
Solution Approach 1:
The position pointer is divided into separate components: the housing, the contacting member, and the sleeve. This segmentation allows the contacting member to be independently replaceable while the sleeve remains attached to the housing, resolving the contradiction between replaceability and secure fit.
Solution Approach 2:
The sleeve acts as an intermediary component between the housing and the contacting member. It provides a secure fitting structure that prevents dislodgement during operation while still allowing the contacting member to be removed and replaced when needed.
2Reliability
If the contacting member is securely fitted to prevent dislodgement, then reliability is improved, but the contacting member cannot be easily replaced when abraded
Solution Approach 1:
By separating the sleeve (which provides secure fitting) from the contacting member (which needs replacement), the design achieves both secure fit and easy replaceability. The sleeve remains on the housing while only the contacting member needs to be removed.
Solution Approach 2:
The sleeve is extracted from the contacting member and made into a separate component that remains attached to the housing. This extraction allows the contacting member to be independently replaced without removing the secure fitting structure.
3Reliability
If the entire position pointer is replaced when the contacting member is abraded, then the contacting member is always in good condition, but the cost and complexity increase
Solution Approach 1:
The design segments the replaceable part (contacting member) from the main device (housing with sleeve), allowing only the worn component to be replaced rather than the entire device, reducing complexity and cost.
Solution Approach 2:
Only the abraded contacting member is discarded and replaced, while the housing and sleeve are recovered and retained for continued use, reducing overall device complexity and replacement cost.
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 contacting member from being dislodged during position pointing operations while maintaining removability, enabling easy replacement and extending the device's lifespan by distributing the force effectively.
Implementation Method 1
a contacting member removably fitted with the projecting portion, having elasticity and electric conductivity and configured to contact the position detection apparatus to point to a position
Implementation Method 2
a position detection apparatus of a capacitance type... a variation of a capacitive coupling state between a sensor electrode and a pointer is detected to detect the position of the pointer
Data Source
AI summary
A cordless type position pointer is provided for use with a capacitance type position detection apparatus to carry out a position pointing operation. The position pointer includes a housing having electric conductivity, a projecting portion of a predetermined shape formed at one end portion of the housing and having electric conductivity, and a contacting member removably fitted with the projecting portion. The contacting member has elasticity and electric conductivity, and is configured to contact the position detection apparatus to point to a position. The position pointer further includes a sleeve having a through-hole and configured to expose, when the sleeve is engaged with the housing, a predetermined portion of the contacting member fitted with the projecting portion from the through-hole thereof. The sleeve is configured and arranged so as to prevent application of displacing force in response to a position pointing operation of the position pointer to the fitting portion between the projecting portion and the contacting member in a direction against the major axis of the position pointer, to thereby prevent dislodging of the contacting member from the housing while maintaining removability of the contacting member from the housing.