Position pointer, variable capacitor and inputting apparatus

一种指示器、电容器的技术，应用在改变电极间距离的电容器、采用电/磁装置传递传感构件、数据处理的输入/输出过程等方向，能够解决可变电容器耐久性下降等问题，达到削减制造工时、提高耐久性的效果

Active Publication Date: 2011-09-21
WACOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the conventional position indicator, the portion of the first electrode 202 that collides with the flange portion 206a of the first terminal 206 is gradually worn away, and there is a possibility that the durability of the variable capacitor may be reduced.

Method used

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  • Position pointer, variable capacitor and inputting apparatus
  • Position pointer, variable capacitor and inputting apparatus
  • Position pointer, variable capacitor and inputting apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0063] refer to Figure 1 to Figure 25 A first embodiment of the position indicator, variable capacitor, and input device of the present invention will be described. However, the same reference numerals are assigned to the same components in each figure. And the present invention is not limited to the following embodiments.

[0064] [input device]

[0065] first according to figure 1 A schematic configuration of an embodiment of the input device of the present invention will be described. Should figure 1 It is a perspective view showing an embodiment of the input device of the present invention.

[0066] The input device 10 according to the first embodiment of the present invention is composed of a position detection device 1 and a position indicator 2 for inputting information to the position detection device 1 .

[0067] [Position detection device 1]

[0068] The position detection device 1 is connected to an external device not shown in the figure, such as a person...

no. 2 Embodiment approach

[0202] The difference between the second embodiment and the first embodiment is the structure of the contact portion between the flat portion 37 of the terminal member 23 and the first surface portion 22a of the dielectric in the variable capacitor of the position indicator. Figure 26 It is a figure which shows the structure of the variable capacitor 150 of a position indicator in this 2nd Embodiment. in the Figure 26 The same reference numerals are assigned to the same parts of the variable capacitor 150 as those of the variable capacitor 15 in the above-mentioned first embodiment to omit detailed description.

[0203] In this second embodiment, the flat portion 37 of the terminal member 23 provided on the first surface portion 22a side of the dielectric 22 is not in direct contact with the first surface portion of the dielectric 22, but is formed between the flat portion 37 of the terminal member 23 and the dielectric 22. A conductive elastic member 81 made of, for exampl...

no. 3 Embodiment approach

[0208] The difference between the third embodiment and the first and second embodiments is also the structure of the contact portion between the flat portion 37 of the terminal member 23 and the first surface portion 22a of the dielectric in the variable capacitor of the position indicator. That is, in this third embodiment, as Figure 28 As shown, the electrode layer 82 is formed on the first surface portion 22a of the dielectric 22 in a region equal to or larger than the area in contact with the flat portion 37 of the terminal member 23 . The electrode layer 82 is formed by, for example, firing a silver paste on the first surface portion 22 a of the dielectric 22 . Other structures are the same as those of the first embodiment described above.

[0209] With such a structure, in the variable capacitor according to the third embodiment, the flat portion 37 of the terminal member 23 receives the pressing force due to the elastic force of the terminal member 23, and reliably to...

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PUM

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Abstract

The invention provides a position pointer, a variable capacitor and an inputting apparatus by which an initial state can be restored with certainty and durability can be improved. The position pointer is disclosed, including a housing, a substantially bar-like rod accommodated in the housing such that one end thereof projects to the outer side of the housing, and a variable capacitor having a capacitance value which varies in response to external force applied thereto through the rod. The variable capacitor includes a dielectric member having a first face portion and a second face portion, a terminal member for forming a first electrode section, a conductive member and an elastic member, wherein a second electrode comprises the conductive member and is opposite to the second face portion of the dielectric member and the conductive member changes the contact area with the second face portion in response to the change of the external force; in addition, the elastic member applies the force to the conductive member in a direction in which the conductive member is spaced away from the second face portion.

Description

technical field [0001] The present invention relates to a position indicator suitable for detecting pen pressure, a variable capacitor for detecting the pen pressure, and an input device provided with the position indicator. Background technique [0002] In recent years, input devices have been used as input devices for personal computers and the like. The input device is composed of, for example, a pen-shaped position indicator and a position detection device having an input surface for performing pointing operations or inputting characters, figures, etc. by using the position indicator. [0003] In addition, conventionally, the variable capacitor described in Patent Document 1 is used for the pen pressure detection unit of the position indicator. The variable capacitor described in Patent Document 1 includes a first electrode mounted on one surface of a dielectric, and a flexible second electrode disposed on the other surface facing the one surface of the dielectric. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/241H01G5/16G06F3/033
CPCG06F3/03545G06F3/0416G06F3/046G06F3/0383
Inventor 福岛康幸藤塚广幸
Owner WACOM CO LTD
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