JP2012088888A - Input pen - Google Patents

Abstract

A user's hand holding a tip and an input pen can be configured to be electrically conductive, and can be used for an input pen that is not slippery and very easy to operate.
An input pen used for an input device that operates an operation area with an input pen or a finger, detects the position of an operation part of the operation area by a change in electric quantity accompanying a change in capacitance, and inputs the position of the operation part. A conductive tip is provided at the front of the barrel 1 of the input pen. A rubber grip 7 made of conductive rubber is attached to the shaft tube 1. The tip and the rubber grip 7 are configured to be electrically conductive, and the hand holding the rubber grip 7 and the tip are configured to be conductive.
[Selection] Figure 1

Description

  The present invention relates to an input pen used in an input device that can smoothly move a cursor by detecting a position based on a change in electric quantity accompanying a change in capacitance by gently tracing an operation area with a tip of the input pen.

  Conventionally, a tip end made of conductive rubber is attached to the front portion of a shaft tube, and the shaft tube is made of a conductive metal. An input pen is known that electrically conducts from the tip to the user's hand if the shaft cylinder is held by hand. (See Patent Document 1)

  However, when the shaft tube is made of metal, there is a problem that it is slippery and difficult to operate.

Japanese Patent No. 4142276

  The problem to be solved is that the shaft tube is slippery and difficult to operate.

  The present invention relates to an input pen used in an input device that operates an operation area with an input pen or a finger, detects the position of the operation part of the operation area by a change in electric quantity accompanying a change in capacitance, and inputs the position of the operation part. The front tip of the shaft tube is provided with a conductive tip, and a rubber grip made of conductive rubber is attached to the shaft tube, so that the tip tip and the rubber grip can be electrically connected, and the rubber grip is held. The most important feature is that the hand and the tip are configured to be conductive.

  According to the present invention, by attaching a rubber grip made of conductive rubber to the shaft tube, it is possible to obtain an advantage that it is difficult to slip and is very easy to operate when held by hand.

1 is a cross-sectional view illustrating an input pen according to a first embodiment of the present invention. Example 1 FIG. 2 is a cross-sectional view showing the tip of the input pen of FIG. Example 1 FIG. 3 is a cross-sectional view illustrating the input pen according to the second embodiment of the present invention. (Example 2) FIG. 4 is a cross-sectional view showing the tip of the input pen of FIG. (Example 2) FIG. 5 is a cross-sectional view illustrating the input pen according to the third embodiment of the present invention. (Example 3) FIG. 6 is a cross-sectional view illustrating an input pen according to a fourth embodiment of the present invention. Example 4

  It can be configured to be electrically conductive from the tip to the hand holding the cylinder, and can be used for an input pen that is difficult to slip and grip when held by hand.

  Hereinafter, the input pen according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. Moreover, let the left side of FIG. 1 be the front, and let the right side be back. A clip 2 is integrally formed at the rear portion of the shaft barrel 1 made of synthetic resin. A tip is attached to the front portion of the shaft tube 1. As shown in FIG. 2, the tip is made of a metal or synthetic resin core member 4, a relatively soft elastic body 5 fitted around the tip of the core member 4, and a 0 attached to the elastic body 5. The outer skin 6 is made of a thin conductive rubber having a thickness of about 1 mm to 0.4 mm. Further, a rubber grip 7 made of conductive rubber is attached to the grip portion 1A of the shaft tube 1. Further, a tip 8 made of a conductive metal is detachably screwed to the tip of the shaft tube 1, and this tip 8 contacts the outer skin 6 of the tip and contacts the front end of the rubber grip 7.

  If the rubber grip 7 of the input pen is held by hand, the lead pen 8 is electrically connected to the outer skin 6 of the tip. Therefore, the outer skin 6 of the tip is maintained at the same potential as the hand of the user holding the input pen.

  When the tip of the input pen is lightly pressed against the operation area of the input device, the outer skin 6 is deformed to obtain a predetermined contact area, and between the operation part and the user's hand depends on the contact area. A capacitance is formed. The position is detected by the change in the amount of electricity accompanying the change in the capacitance, and the position where the outer skin 6 of the tip is in contact is input.

  Hereinafter, the input pen according to the second embodiment of the present invention will be described with reference to FIGS. 3 and 4. In addition, the same member as FIG. 1 attaches | subjects the same code | symbol, and abbreviate | omits the description. As shown in FIG. 4, the distal end tip constitutes the fixing member 9 with a conductive metal member such as brass. Next, a relatively soft elastic body 15 and a skin 16 made of a thin conductive rubber of about 0.1 mm to 0.4 mm attached to the elastic body 15 are inserted into the front portion 9A of the fixing member 9, and the outside The elastic body 15 and the outer skin 16 are fixed to the fixing member 9 by caulking the front portion 9A. The fixing member 9 is press-fitted and fixed to a tip 18 made of a conductive metal, and the ends of the elastic body 15 and the outer skin 16 are projected from the tip 18. Further, the tip 18 is removably screwed to the tip of the shaft tube 1, and the tip 18 is brought into contact with the front end of the rubber grip 7.

  If the rubber grip 7 of the input pen is held by hand, it is electrically connected to the outer skin 16 via the tip 18 and the fixing member 9. Therefore, the outer skin 16 of the tip is maintained at the same potential as the user's hand holding the input pen.

  The input pen according to the third embodiment of the present invention will be described below with reference to FIG. In addition, the same member as FIG. 1 attaches | subjects the same code | symbol, and abbreviate | omits the description. The tip 10 is detachably screwed onto the front portion of the shaft tube 11 and the rubber grip 7 is brought into contact with the rear end of the tip 10. The tip 10 is made of conductive rubber.

  Hereinafter, an input pen according to a fourth embodiment of the present invention will be described with reference to FIG. The shaft cylinder 21 formed integrally with the clip 2 is made of a conductive resin such as a carbon-based highly conductive polymer. A rubber grip 17 made of conductive rubber is formed on the grip portion 21A of the shaft cylinder 21 by insert molding or two-color molding. Further, a tip tip 110 made of conductive rubber is attached to the front portion of the shaft tube 21.

  If the rubber grip 17 of the input pen is held by hand, the tip tip 110 is electrically connected via the shaft 21. Therefore, the tip 110 is maintained at the same potential as the user's hand holding the input pen.

  In addition, this invention is not limited to the said Example, A shaft cylinder can also be comprised by adhering and integrating several members. Further, the tip is not limited to the above embodiment, and various conventionally known configurations can be considered as long as they have conductivity. Further, the conductive rubber is constituted by putting a large amount of a conductive agent such as carbon black or metal in natural rubber, nitrile rubber, silicon rubber or the like, but it is preferable to use a relatively soft conductive rubber.

  The present invention can be applied to an input pen that is easy to operate while maintaining the same potential on the user's hand holding the tip and the input pen at the same potential.

1 shaft cylinder 7 rubber grip 8 tip 10 tip tip 11 shaft cylinder 17 rubber grip 21 shaft cylinder 110 tip tip

Claims (4)

  In an input pen used for an input device that operates an operation region with an input pen or a finger, detects a position of an operation portion of the operation region by a change in electric quantity accompanying a capacitance change, and inputs a position of the operation portion, A tip with conductivity is provided at the front, and a rubber grip made of conductive rubber is attached to the shaft tube. The tip and the rubber grip are configured to be electrically conductive, and the hand and tip that hold the rubber grip An input pen characterized in that the tip can be conducted.   2. The input pen according to claim 1, wherein the tip is made of conductive rubber.   A tip made of a conductive metal is provided at the front of the shaft cylinder, and the tip is brought into contact with the tip and a rubber grip is brought into contact with the tip so that the tip tip and the rubber grip can be electrically connected. The input pen according to claim 1 or 2.   The shaft cylinder is made of a conductive synthetic resin, a tip is attached to the shaft, and a rubber grip provided on the tip is electrically connected to the tip. The input pen according to any one of the above.

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