JP2012088890A - Input pen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an input pen with which a tip 1 can be electrically continuous with a user's hand holding the input pen and in which the tip 1 can be securely attached to a tip metal 3.SOLUTION: An input pen is used for an input device that is operated by the input pen or a finger in an operation area, and detects an operation position in the operation area on the basis of a change in the quantity of electricity accompanying a capacitance change to input the operation position. A tip 1 of the input pen is composed of conductive rubber. The tip 1 is inserted into a front portion 2A of a fixing member 2 and fixed with an internal protrusion 2D formed on the front portion 2A of the fixing member 2. The fixing member 2 is fixed to a tip metal 3 having conductivity, and an end portion of the tip 1 is protruded from the tip metal 3. The tip metal 3 is attached to a shaft cylinder having conductivity so that a hand holding the shaft cylinder can be electrically continuous with the tip.

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.

  2. Description of the Related Art Conventionally, an input pen provided with a tip tip made of conductive rubber at the front is known. (See Patent Document 1)

  However, the input pen has a configuration in which a core member to which a tip is attached is attached to the shaft cylinder, or a core member to which the tip is attached is attached to the shaft cylinder, so that the tip may be detached. was there.

Japanese Patent No. 4142276

  The problem to be solved is that if the tip having elasticity is press-fitted and attached to the core member or the shaft tube, the tip is easily detached.

  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 tip is made of conductive rubber, the tip is inserted into the front of the fixing member, and the tip is fixed by an inward protrusion formed on the front of the fixing member. The tip of the tip is fixed to the tip of the tip and protrudes from the tip, and this tip is attached to a conductive shaft so that the hand holding the shaft and the tip can be connected. The main feature is that it is composed.

  The present invention is advantageous in that the tip is securely attached to the tip and is not likely to come off, and the tip attached with the tip is easily attached to the shaft tube.

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, fixing member, and tip of the input pen shown in FIG. Example 1 FIG. 3 is a cross-sectional view illustrating the tip, the fixing member, and the tip of the input pen according to the second embodiment of the present invention. (Example 2) FIG. 4 is a cross-sectional view illustrating the input pen according to the third embodiment of the present invention. (Example 3)

  It can be configured to be electrically conductive from the tip to the hand holding the shaft tube, and can be used for an input pen that can be securely attached to the tip.

  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. The tip 1 having the tip formed in a semicircular shape is made of conductive rubber. The fixing member 2 is made of a conductive metal, and the front part 2A is formed in a cylindrical shape, and the outer collar 2B and the inner collar 2C are formed at the rear. The distal tip 1 is inserted into the fixing member 2 from the front, and the front portion 2A is caulked from the outside to form an inward projection 2D. The tip 1 is securely fixed to the fixing member 2 by the inward projection 2D. Further, the fixing member 2 is inserted from the rear side of the conductive tip 3, and the outer flange 2B of the fixing member 2 is press-fitted and fixed to the inner surface of the tip 3, as shown in FIG. The tip of 1 is configured to protrude appropriately from the tip 3. The shaft cylinder includes a rear shaft 4 made of non-conductive synthetic resin, and a rubber grip 5 made of conductive rubber that covers the grip portion 4A of the rear shaft 4. The tail plug 6 is press-fitted and fixed to the rear portion of the rear shaft 4, and the tip 3 is detachably screwed to the front portion of the rear shaft 4, and the rear end of the tip 3 is brought into contact with the front end of the rubber grip 5. Configure the input pen.

  If the rubber grip 5 constituting the shaft of the input pen is held by hand, the hand and the tip 1 are electrically connected via the fixing member 2 and the tip 3. Therefore, the tip 1 is maintained at the same potential as the user's hand holding the shaft of the input pen.

  When the tip 1 of the input pen is lightly pressed against the operation area of the input device, the tip of the tip 1 is deformed to obtain a predetermined contact area, and there is no contact between the operation part and the user's hand. A capacitance depending on the area is formed. The position is detected based on the change in the amount of electricity accompanying the change in capacitance, and the position where the tip 1 is in contact is input.

  Hereinafter, the tip of the input pen, the fixing member 2 and the tip 3 of the input pen according to the second embodiment of the present invention will be described 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 is composed of a relatively soft elastic body 7 and a skin 8 made of a thin conductive rubber attached to the elastic body 7. This tip is inserted from the front of the fixing member 2, and the front portion 2A of the fixing member 2 is crimped from the outside to form the inward protrusion 2D. The outer tip 8 is deformed inward by the inward projection 2D, and the tip is fixed to the fixing member 2. The outer collar 2B of the fixing member 2 is attached by press-fitting to the inner surface of the tip 3. Therefore, the thin outer skin 8 can be securely attached without being detached.

  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 shaft tube 9 is made of a conductive resin, and a tail plug 16 is press-fitted and fixed to the rear portion of the shaft tube 9. A tip 3 provided with a tip 1 and a fixing member 2 is detachably screwed to the front portion of the shaft tube 9 to constitute an input pen.

  If the shaft 9 of the input pen is held by hand, the hand and the tip 1 are electrically connected via the tip 3 and the fixing member 2. Therefore, the tip 1 is maintained at the same potential as the user's hand holding the shaft 9 of the input pen.

  In addition, this invention is not limited to the said Example, A shaft cylinder, a tip metal, and a fixing member can also be comprised by adhering and integrating several members. Further, the fixing member does not necessarily have conductivity, but it is sufficient that the tip and the tip are in contact with each other. 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.

  This is applicable to an input pen in which the user's hand holding the tip and the input pen is maintained at the same potential, and the tip is securely attached to the tip.

DESCRIPTION OF SYMBOLS 1 Tip tip 2 Fixing member 2A Front part of the fixing member 2D Inward protrusion part of the fixing member 2 3 Lead metal 7 Elastic body 8 Outer skin 9 Shaft cylinder

Claims (2)

  In an input pen used for an input device that operates an operation area with an input pen or a finger, detects a 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, It is made of conductive rubber, this tip is inserted into the front of the fixing member, and the tip is fixed by an inward protrusion formed on the front of the fixing member. The tip is fixed to gold and the tip of the tip is protruded from the tip, and the tip is attached to a conductive shaft so that the hand holding the shaft and the tip can be connected. Characteristic input pen.   2. The input pen according to claim 1, wherein the tip is configured by covering an outer surface of the elastic body with a skin made of conductive rubber.

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