Coordinate Input Device Grip With Rear-Surface Button Access
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Solution Overview
Problem
Conventional coordinate input devices have large casings due to operation buttons, reducing the input surface area and requiring operators to look away from the display to operate buttons, leading to inefficient position indication inputs.
Innovation Solution
The coordinate input device features grip parts with projecting portions on the rear surface housing operation buttons, allowing operators to recognize and operate buttons through muscle memory without looking, thus enlarging the position detection region and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If operation buttons are disposed on the input surface, then operation functionality is provided, but the input surface area is reduced
Solution Approach 1:
The operation buttons are moved from the input surface (2D plane) to the rear surface of the casing (another dimension), allowing both the input surface and operation buttons to coexist without spatial conflict. This dimensional transition resolves the contradiction by separating the functions in different spatial planes.
2Ease of operation
If operation buttons are disposed on the input surface, then operation functionality is provided, but operators must look away from the display reducing efficiency
Solution Approach 1:
The grip part with operation buttons is designed to be operated through muscle memory without visual confirmation, allowing operators to perform operations automatically while maintaining focus on the display. This self-service mechanism eliminates the need to look away, thereby maintaining productivity.
3Ease of operation
If multiple operation buttons are disposed on the same side, then operation functionality is provided, but the casing size increases
Solution Approach 1:
By relocating operation buttons to the rear surface of the casing, the design utilizes the third dimension (depth) rather than expanding the horizontal or vertical dimensions. This allows multiple buttons to be arranged on the grip part without increasing the overall casing footprint.
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
The solution enables efficient operation of buttons without reducing the input surface area, allowing operators to perform tasks with enhanced productivity by recognizing buttons through muscle memory, thus improving overall work efficiency.
Implementation Method 1
The position detection sensor 102 and the electronic pen 200 use, for example, the electromagnetic induction system
Data Source
AI summary
A coordinate input device includes a position detection sensor that detects a position indicated by an indicator, a casing housing the position detection sensor between a rear surface and an input surface, a grip part disposed on the rear surface of the casing, one or more operation parts disposed on the grip part, a first recessed portion formed in the rear surface of the casing adjacent to the grip part, and a second recessed portion disposed at a longitudinal side of the coordinate input device. In operation, a finger of an operator is inserted into the second recessed portion disposed at the longitudinal side of the coordinate input device and into the first recessed portion formed in the rear surface of the casing when the operator grips the grip part so as to operate the one or more operation parts.