JPH08129532A - Handwriting input device - Google Patents

Abstract

PURPOSE: To provide a small-sized, portable handwriting input device with superior operability which is increasingly reduced in the size of a device main body and automatically turns on and of power supply accompanying the detaching and attaching operation of a handwriting pen without operating a power switch specifically by an operator. CONSTITUTION: The handwriting input device consists of the device main body 101 and handwriting pen 102. The device main body 101 has a hollow cylinder 105 wherein a battery 107 is stored. When the operator does not use the handwriting input device, the handwriting pen 102 is fitted outside the hollow cylinder 105 and then stored in the device main body 101. Further, the hollow cylinder 105 is provided with a movable member which changes its attitude linked with the fitting and drawing of the handwriting pen 102. When the operator takes the handwriting pen 102 out of the device main body 101, electric power is supplied and when the hand writing pen 102 is put back to the device main body 101, the power supply is cut off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwriting input device comprising a device body having a handwriting input surface and a handwriting pen capable of performing an input operation on the handwriting input surface.

[0002]

2. Description of the Related Art In recent years, many small / portable handwriting input devices of the type for inputting with a handwriting pen have been developed and commercialized in the fields of electronic notebooks, handy personal computers and the like. In this type of device, an operator can input characters and the like by rubbing a handwriting pen against a handwriting input surface of the device body. Further, in order to make it compact / portable, a battery is used as a power source of an electric circuit in the main body of the apparatus, and a pen storage groove capable of storing a handwriting pen is provided in the main body of the apparatus.

[0003]

However, in the conventional small-sized / portable handwriting input device, since the battery storage space and the pen storage space are separately provided in the device body, the device body can be downsized. There was a limit to what I could do. Of course, if the handwriting pen itself is made thin, the apparatus main body can be downsized accordingly, but it becomes difficult for the operator to hold the handwriting pen, which causes a disadvantage that the operability during input operation is hindered. Further, if a small battery is adopted, the apparatus main body can be downsized by that amount, but there is a disadvantage that it cannot be used continuously for a long time.

Further, in the conventional handwriting input device, the power supply from the battery cannot be turned on / off unless the operator operates the power switch. In particular, in a small / portable handwriting input device, the operation of the power switch has been troublesome. For example, when the apparatus body is placed on the palm and operated, there is a risk that the apparatus body will fall from the palm to the ground unless the power switch is operated carefully.

In view of the above problems, the present invention provides a handwriting input device which has a handwriting pen having a thickness that does not impair operability and a battery which can be used for a long time, and which further reduces the size of the device body. This is the first purpose. A second object of the present invention is that the power supply is automatically turned on / off in accordance with the attachment / detachment operation of the handwriting pen even if the operator does not explicitly operate the power switch, which is excellent in operability. It is to provide a handwriting input device.

A third object of the present invention is to provide a handwriting input device capable of selectively turning on / off power supply depending on the degree of storage of a handwriting pen.

[0007]

In order to achieve the first object, the handwriting input device according to claim 1 can perform an input operation on the device main body having a handwriting input surface and the handwriting input surface. A hollow cylindrical body, which is not composed of a handwriting pen, is provided at a position close to one side of the apparatus main body in an extended posture in which only one end is fixed to the apparatus main body. A battery for driving an electric circuit in the main body of the apparatus is stored inside the hollow cylindrical body. On the other hand, the handwriting pen is hollow and has an opening at the upper end side of the pen. When the handwriting pen is not used, it can be inserted into the hollow cylindrical body from the opening side.

In order to achieve the second object,
The handwriting input device according to a second aspect is the handwriting input device according to the first aspect, further comprising a movable member protruding from the inside of the hollow cylindrical body to the outer periphery. The movable member changes its posture in association with the insertion and removal of the handwriting pen. The movable member disconnects the electrical connection between the battery and the electric circuit inside the apparatus body in the first posture when the handwriting pen is inserted into the hollow cylinder, and in the second posture when the handwriting pen is pulled out from the hollow cylinder. The electrical connection is turned on.

The handwriting input device according to claim 3 is
In the handwriting input device according to claim 2, a conductive plate is adopted as the movable member. A fixed electrode for contacting one electrode of the battery is provided at one end in the longitudinal direction of the hollow cylinder, and a spring electrode for pressing the battery into contact with the electrode is provided at the other end, and a fixed electrode is provided between the fixed electrode and the spring electrode. Alternatively, two or more batteries are stored. The conductive plate is inserted between the batteries and between the battery and the fixed electrode or the spring electrode, and the spring is used in the first posture of the conductive plate when the handwriting pen is inserted into the hollow cylindrical body. A mechanism is provided to widen the gap between the batteries and the gap between the batteries and the fixed electrode or the spring electrode against the elastic force of the electrodes to disconnect the electrical connection.

Further, the handwriting input device according to claim 4 is
The handwriting input device according to claim 2, wherein an insulating wedge is adopted as the movable member. A fixed electrode for contacting one electrode of the battery is provided at one end in the longitudinal direction of the hollow cylinder, and a spring electrode for pressing the battery into contact with the electrode is provided at the other end, and a fixed electrode is provided between the fixed electrode and the spring electrode. Alternatively, two or more batteries are stored. The insulating wedge is interposed between the batteries and between the battery and the fixed electrode or the spring electrode, and the insulating wedge is provided in the first posture of the insulating wedge when the handwriting pen is inserted into the hollow cylindrical body. A mechanism is provided to widen the gap between the batteries and the gap between the batteries and the fixed electrode or the spring electrode against the elastic force of the electrodes to disconnect the electrical connection.

Further, in order to achieve the third object, the handwriting input device according to the fifth aspect is the handwriting input device according to the third and fourth aspects.
In the handwriting input device described, in the outer wall of the hollow cylinder and the inner wall of the handwriting pen, or the inner wall of the groove provided in the device body for storing the handwriting pen and the outer wall of the handwriting pen, one wall has a protrusion on the other. The wall is provided with a contact portion. The handwriting pen is held at the position where the handwriting pen is inserted into the hollow cylindrical body and the position where the power supply is not cut off by the engagement of both parts.

[0012]

According to the handwriting input device of the present invention, when the operator does not use the handwriting input device, the handwriting pen is inserted by covering the hollow cylindrical body containing the battery with the handwriting pen. Can be stored in the device body. Further, in the handwriting input device according to claim 2, when the handwriting pen is stored in the main body of the device, the movable member that changes the posture in association with insertion and removal of the handwriting pen is the first.
By taking the posture, the power supply from the battery to the electric circuit in the main body of the apparatus is cut off. On the other hand, when the handwriting pen is taken out from the main body of the apparatus, the movable member is placed in the second posture to supply power. Therefore, the power supply is turned on / off by only inserting / removing the handwriting pen.

Further, in the handwriting input device according to the third aspect, the conductive plate body is adopted as the movable member in the handwriting input device according to the second aspect, so that the handwriting pen is electrically conductive when it is inserted into the hollow cylindrical body. In the first posture of the flexible plate body, the conductive plate body expands the gap between the batteries and between the battery and the fixed electrode or the spring electrode against the elastic force of the spring electrode, so that the conductive plate body expands the gap from the battery to the device main body. Disconnect the power supply to the internal electric circuit. On the other hand, when the handwriting pen is taken out from the main body of the apparatus, the conductive plate body is placed in the second posture to supply power. Therefore, the power supply is turned on / off by only inserting / removing the handwriting pen.

Further, in the handwriting input device according to the fourth aspect, an insulating wedge is adopted as the movable member in the handwriting input device according to the second aspect, and insulation is provided when the handwriting pen is inserted into the hollow cylindrical body. In the first posture of the elastic wedge body, between the batteries against the elastic force of the spring electrode,
The insulating wedge body expands the gap between the battery and the fixed electrode or the spring electrode to cut off the power supply from the battery to the electric circuit in the main body of the device. On the other hand, when the handwriting pen is taken out from the main body of the apparatus, the insulating wedge body is placed in the second posture so that power is supplied. Therefore,
The power supply is turned on and off by simply inserting and removing the handwriting pen.

Furthermore, the handwriting input device according to a fifth aspect is the handwriting input device according to the third and fourth aspects, wherein the handwriting input device is provided on an outer wall of the hollow cylindrical body and an inner wall of the handwriting pen, or an apparatus main body for storing the handwriting pen. By engaging the inner wall of the groove with the projection provided on the outer wall of the handwriting pen and the abutting portion, the handwriting pen is inserted at the position where the handwriting pen is inserted into the hollow cylinder and the power supply is not cut off. Is retained. Therefore, it has a means for supplying power even if the handwriting pen is not completely taken out from the apparatus main body.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. (Embodiment 1) FIG. 1 is a perspective view of a handwriting input device according to a first embodiment of the present invention. As shown in FIG. 1, the handwriting input device includes a device body 101 and a handwriting pen 102.

The apparatus main body 101 is a portable size having a rectangular outer shape, and a rectangular handwriting input surface 103 is provided on the upper surface thereof. The operator uses the handwriting pen 1
Characters and the like can be input by performing a rubbing operation on the handwriting input surface 103 using 02. Inside the device body 101, below the input surface 103, an in-device body electric circuit 106 that performs signal processing based on an input signal from the handwriting pen 102 is provided. In addition, near the one side wall 101a of the apparatus main body 101,
A pen storage groove 104 having a U-shaped cross section is provided, and the front side of the pen storage groove 104 is closed (101b) and the opposite side is open.

In the pen storing groove 104, the pen storing groove 1
Hollow cylindrical body 105 having an outer diameter smaller than the inner diameter of 04
However, it is provided in an extended posture in which only one end is fixed to the closed portion 101b of the pen storage groove 104. Inside the hollow cylindrical body 105, one or more batteries 107 for supplying electric power to the electric circuit 106 inside the apparatus main body are stored.

On the other hand, the handwriting pen 102 is formed in a cylindrical shape having a size that is easy for the operator to operate. The tip side of the handwriting input surface 103 is sharply formed and
Characters and the like can be input by performing a rubbing operation on the. The inside of the handwriting pen 102 is a hollow 102b having an inner diameter slightly larger than the outer diameter of the hollow cylindrical body 105, and is opened at the upper end side 102a of the handwriting pen 102.

When the operator does not use the handwriting pen 102, the handwriting pen 102 is inserted from the opening side of the pen storage groove 104, and the handwriting pen 102 is externally inserted into the hollow cylindrical body 105 to be stored in the apparatus main body 101. be able to. FIG. 2 shows the handwriting pen 1 in this embodiment.
2 is a perspective view of the handwriting input device showing a state when 02 is stored in the device main body 101. FIG.

Next, the handwriting pen 102 and the hollow cylindrical body 10
The internal structure of 5 will be described in detail. FIG. 3 shows a cross-sectional view of the handwriting pen 102 and the hollow cylindrical body 105. Two projections 102c and 102d each having a triangular cross section are provided near the opening 102a on the inner wall of the handwriting pen 102. On the other hand, the hollow cylindrical body 105 has a cylindrical shape, and has a hollow 105e inside which two batteries 107 can be stored in series. One end side 105b of the hollow cylindrical body 105 is closed, and the battery 10 is attached to the inner wall thereof.
A fixed electrode 302 that contacts the positive electrode of No. 7 is provided. The other end 105a of the hollow cylindrical body 105 is open and is screwed into the female screw portion of the closing portion 101b of the apparatus body 101.

Closing portion 10 into which the hollow cylindrical body 105 is screwed
1b is provided with a spring electrode 303, as shown in FIG.
As shown in FIG. 3, the hollow cylinder 105 is screwed into the closing portion 101b of the apparatus main body 101, and the two batteries 107, 10
7 is elastically sandwiched in series by the spring electrode 303 and the fixed electrode 302. Although not shown in FIG. 3, cables from the fixed electrode 302 of the hollow cylindrical body 105 to the other end 105a of the hollow cylindrical body 105 and from the closed portion 101b of the apparatus main body 101 to the electric circuit 106 in the apparatus main body are connected by a cable. Is wired.

A ring-shaped projection 105d and a rectangular opening 105c are provided on the outer periphery of the central portion in the longitudinal direction of the hollow cylindrical body 105.
Is provided. As shown in FIG. 3C, the protrusion 105d engages with two protrusions 102c and 102d formed on the inner wall of the handwriting pen 102, so that the handwriting pen 102 is approximately half the hollow cylindrical body 105. It is held in the hollow cylindrical body 105 in the inserted state.

On the other hand, the rectangular opening 105c is shown in FIG.
As shown in (a), it is formed at an intermediate position between the two batteries 107, 107, and the conductive plate body 301 is inserted between the two batteries 107 and 107 through the opening 105c. In addition, the opening 105c is formed in the conductive plate 3
01 has a size large enough to change its posture between a state in which it is vertically upright with respect to the hollow cylindrical body 105 (FIG. 3A) and a state in which it is tilted (FIG. 3B).

The entire length of the conductive plate 301 is the hollow cylindrical body 105.
Longer than the diameter of. Therefore, the conductive plate body 301 has the opening 10
In the state of being inserted into the hollow cylindrical body 105 through 5c, the tip portion 301a of the conductive plate body 301 projects to the outer periphery of the hollow cylindrical body 105. The protruding tip portion 301a is bent and formed in an arc shape as shown in FIG. This is the hollow cylinder 1 of the handwriting pen 102.
This is to reduce friction between the handwriting pen 102 and the inner wall of the handwriting pen 102 as much as possible when the handwriting pen 102 is removed from the device 05, and to smoothly insert and remove the handwriting pen 102. Further, as seen in FIG. 4, the central portion of the conductive plate body 301 is formed to have a large wall thickness, which ensures the electrical connection between the conductive plate body 301 and the battery 107.

Here, as a result of performing the handwriting input operation for a long time, the batteries 107, 107 in the hollow cylindrical body 105 are obtained.
When the exhaust gas is exhausted, the hollow cylindrical body 105 is closed by the closing portion 101b.
On the other hand, the battery can be replaced with a new battery by removing the conductive plate 301 from the opening 105c by turning the screw in the opposite direction to the tightening direction. The replacement of the hollow cylinder body 105 and the conductive plate body 301 after the replacement can be performed by the reverse operation of the removal.

Next, in the above structure, the handwriting pen 10
The movement of the conductive plate body 301 when the 2 is inserted into and removed from the hollow cylindrical body 105 will be described. FIG. 3A shows a handwriting pen 10.
2 shows a state before being inserted into the hollow cylindrical body 105. In this state, due to the pressing force of the spring electrode 303, the conductive plate body 301 stands upright vertically to the hollow cylindrical body 105, and the spring electrode 303, the battery 107, the conductive plate body 301 and the fixed electrode 302 are Electrical connection to each other is maintained. Therefore, electric power is supplied from the battery 107 to the electric circuit 106 in the apparatus main body.

FIG. 3B shows a state in which the handwriting pen 102 is completely inserted into the hollow cylindrical body 105. In this state, the inner wall of the handwriting pen 102 tilts the tip portion 301a of the conductive plate 301 in the insertion direction of the handwriting pen 102. At this time, the conductive plate 301 is
Since the positive electrode of one battery 107 and the negative electrode of the other battery 107 are in contact with the insulating portions at the edges, the electrical connection is cut off. Therefore, electric power is supplied from the battery 107 to the electric circuit 106 in the apparatus main body. In the tilted conductive plate 301, the handwriting pen 102 has a hollow cylindrical body 10.
Unless it is extracted from 5, the posture is maintained against the pressing force of the spring electrode 303.

FIG. 3C shows a state in which the handwriting pen 102 is held midway in the longitudinal direction of the hollow cylindrical body 105. In this state, the protrusion 105d provided on the outer peripheral wall of the hollow cylindrical body 105 is engaged with the intermediate portion of the protrusions 102c and 102d provided on the inner wall of the handwriting pen 102. As a result, the handwriting pen 102 becomes the hollow cylindrical body 1.
The handwriting pen 102 is held at a position where it is inserted into the device 05 and where the power supply is not cut off. With such a holding mechanism, even when the operator is using the handwriting pen 102, the handwriting pen 102 is inserted halfway into the hollow cylindrical body 105 to disconnect the power supply to the electric circuit 106 in the apparatus main body. Handwriting handwriting pen 1 without
02 can be temporarily placed in the apparatus main body 101.

The projections 102c and 102d need not be formed over the entire circumference of the inner wall of the handwriting pen 102, but a plurality of projections 102c and 102d may be formed at appropriate intervals in the circumferential direction. The reason is that when the handwriting pen 102 is pulled out from the hollow cylindrical body 105, the handwriting pen 102 is rotated by a slight amount so that the projections 102c, 10c are formed on the tip portion 301a of the conductive plate 301.
This is to avoid the contact of 2d.

Although not shown in FIG. 3C, projections are provided on the outer periphery of the handwriting pen 102 and the inner wall of the pen storage groove 104 to engage with each other. It is also possible to have a structure in which it is held. As described above, the conductive plate 301 is the battery 107.
Although the embodiment in which the conductive plate 301 is inserted between the battery 107 and the battery 107 has been described, the conductive plate 301 may be provided at another position. For example, as shown in FIG.
Is inserted at a position between the spring electrode 303 and the battery 107, or the conductive plate 301 is connected to the battery 107 as shown in FIG.
It may be inserted at a position between the fixed electrode 302 and the fixed electrode 302.

Further, in this embodiment, the battery 107 is taken in and out through the opening 105a of the hollow cylindrical body 105, but the method for replacing the battery 107 is not limited to that method. As shown in FIG. 7, the closed portion 105b of the hollow cylindrical body 105 to which the fixed electrode 302 is attached may be removable as a lid. (Second Embodiment) Next, a second embodiment of the present invention will be described. This embodiment differs from the first embodiment only in the structure and moving direction of the movable member, and the other structures are the same as in the first embodiment. Therefore, here, differences from the first embodiment will be mainly described.

FIG. 8 shows a handwriting pen 102 according to the second embodiment.
9 is a sectional view of the hollow cylindrical body 105, and FIG. 9 shows the movable member 801 and the opening 1 on the hollow cylindrical body 105 side into which the movable member 801 is inserted.
05c is shown. An insulating member is used as the movable member 801, and as shown in FIGS. 8 and 9, one end 801b is formed into a sharp wedge and the other end 801a is formed into a rounded wedge shape (hereinafter, this movable member will be referred to as “insulating member”). Sex wedge body 80
1 ”. ). And two insulating wedges 801
Through the opening 105c of the hollow cylindrical body 105,
It is designed so that it can appear and disappear in the radial direction of 05.

On the other hand, the inner wall of the handwriting pen 102 is shown in FIG.
As shown in (a), a protrusion 102e having a larger protrusion amount than the protrusions 102c and 102d for holding the handwriting pen 102 is formed. When the handwriting pen 102 is inserted into the hollow cylindrical body 105 until the state shown in FIG. 8B is reached, the protrusion 102e pushes the insulating wedge body 801 into the hollow cylindrical body 105 by the protrusion amount. As a result, the sharp tip 801b of the insulating wedge body 801 is separated between the two batteries 107, 107, and both batteries 107,
Disconnect 107.

On the other hand, when the handwriting pen 102 is inserted only up to the position shown in FIG. 8A or FIG. 8C, the tip 801b of the insulating wedge body 801 has both batteries 107,
It does not extend into the space between 107 and therefore the electrical connection is maintained. Similar to FIG. 3C, FIG. 8C shows a state in which the handwriting pen 102 can be temporarily placed on the apparatus main body 101 without cutting off the power supply from the batteries 107, 107.

It should be noted that this embodiment does not show other embodiments regarding the replaceable structure of the battery or the position of the insulating wedge body 801 in the longitudinal direction of the hollow cylindrical body 105, but it is shown in the first embodiment. It goes without saying that the same configuration and position as described above can be adopted. Although the present invention has been described above based on the first and second embodiments, it goes without saying that the present invention is not limited to the above embodiments. (1) In the first and second embodiments, the handwriting pen 10
2 and the hollow cylindrical body 105 have a circular cross section and the pen storage groove 104 has a U-shaped cross section, the shape is not limited to this. It may be rectangular or elliptical. (2) In the first embodiment, the conductive plate 301 is used as the movable member that changes the posture in association with the insertion and removal of the handwriting pen 102.
Although the insulating wedge body 801 is used in the second embodiment, it is not limited to these movable members. FIG.
As shown in 0, a switch 1001 may be provided as a movable member, and the power supply from the battery may be turned on / off in conjunction with insertion / removal of a handwriting pen.

[0037]

As described above, in the handwriting input device according to the present invention, the handwriting pen is stored in the main body of the apparatus by inserting the handwriting pen into the hollow cylindrical body in which the battery is stored. Therefore, it is not necessary to separately provide a battery storage space and a handwriting pen storage space, and the size of the apparatus body can be reduced.

Further, by providing a movable member whose posture is changed in association with the insertion / removal of the handwriting pen, it is automatically operated according to the detaching operation of the handwriting pen by the operator without the operator explicitly operating the power switch. The power supply is turned on / off to improve the operability of the handwriting input device. Furthermore, by providing the handwriting pen with the holding mechanism, it is possible to selectively turn on / off the power supply according to the degree of storage of the handwriting pen, and in this respect also, the operability of the handwriting input device can be improved. .

[Brief description of drawings]

FIG. 1 is a perspective view of a handwriting input device according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the handwriting input device showing a state when the handwriting pen is stored in the device body in the embodiment.

FIG. 3A is a cross-sectional view of the handwriting pen and the hollow cylinder in a state before the handwriting pen is inserted into the hollow cylinder in the embodiment. FIG. 3B is a cross-sectional view of the handwriting pen and the hollow cylinder showing the state after the handwriting pen is inserted into the hollow cylinder in the same embodiment. Figure 3 (c) shows
In the same Example, it is sectional drawing of a handwriting pen and a hollow cylinder which show the state in which the handwriting pen is hold | maintained at the hollow cylinder.

FIG. 4 is a perspective view showing an opening of a conductive plate body and a hollow cylindrical body in the embodiment.

FIG. 5 is a cross-sectional view of the handwriting pen and the hollow cylinder when the conductive plate body is inserted between the spring electrode and the battery in the embodiment.

FIG. 6 is a cross-sectional view of the handwriting pen and the hollow cylinder when the conductive plate body is inserted between the fixed electrode and the battery in the embodiment.

FIG. 7 is a cross-sectional view of the handwriting pen and the hollow cylindrical body in the same embodiment when the closed portion of the hollow cylindrical body is detachable as a lid.

FIG. 8 is a cross-sectional view of a handwriting pen and a hollow cylinder according to a second embodiment in which an insulating wedge is used as a movable member.

FIG. 9 is a perspective view of an insulating wedge body and an opening of a hollow cylindrical body in the embodiment.

FIG. 10 is a cross-sectional view of a handwriting pen and a hollow cylinder according to a third embodiment in which a switch is used as a movable member.

[Brief description of reference numerals]

 101 Device Main Body 102 Pen 103 Input Surface 104 Pen Storage Groove 105 Hollow Cylindrical Body 106 Device Main Body Electric Circuit 107 Battery 301 Conductive Plate 302 Fixed Electrode 303 Spring Electrode 801 Insulating Wedge Body 1001 Switch

Claims (5)

[Claims] 1. A handwriting input device comprising a device body having a handwriting input surface and a handwriting pen capable of performing an input operation on the handwriting input surface, wherein a hollow cylindrical body is provided on one side of the device body only at one end. It is provided in an extended posture fixed to the main body, and the battery for driving the electric circuit in the main body of the device is stored in the hollow cylindrical body. On the other hand, the handwriting pen is hollow and the upper end side of the pen is open, and the pen is not used when not in use. A handwriting input device, characterized in that the handwriting input device is configured to be inserted into a hollow cylindrical body from an opening side. 2. A movable member is provided which projects from the inside of the hollow cylinder to the outer periphery and changes its posture in association with the insertion and removal of a handwriting pen. The movable member is a member when the handwriting pen is inserted into the hollow cylinder. The electric connection between the battery and the electric circuit inside the apparatus main body is disconnected in one posture, and the electric connection is turned on in the second posture when the handwriting pen is pulled out from the hollow cylindrical body. The handwriting input device according to claim 1. 3. A fixed electrode for contacting one electrode of a battery is provided at one longitudinal end of the hollow cylindrical body, and a spring electrode for pressing the battery into contact with the electrode is provided at the other end. One or two or more batteries are stored in the space, and the movable member is a conductive plate body interposed between the batteries and between the battery and the fixed electrode or the spring electrode. First of conductive plate body when inserted in hollow cylinder
When the handwriting pen is pulled out from the hollow cylinder, the gap between the battery and the battery, or between the battery and the fixed electrode or the spring electrode, is widened against the elastic force of the spring electrode in the posture to disconnect the electrical connection. The handwriting input device according to claim 2, wherein the handwriting input device is configured to make an electrical connection through a conductive plate body in two postures. 4. A fixed electrode for contacting one electrode of a battery is provided at one longitudinal end of the hollow cylindrical body, and a spring electrode for pressing the battery into contact with the electrode is provided at the other end of the fixed electrode and the spring electrode. One or more batteries are housed in between, and the movable member is interposed between the batteries and between the batteries and the fixed electrode or the spring electrode, and is insulative so that it can appear and disappear on the peripheral surface of the hollow cylindrical body. It is a wedge body, and between the battery and the battery, between the battery and the fixed electrode or the spring electrode against the elastic force of the spring electrode in the first posture of the insulating wedge when the handwriting pen is inserted into the hollow cylindrical body. Expand the gap to break the electrical connection,
The handwriting input device according to claim 2, wherein the electric connection is turned on in the second posture of the insulating wedge when the handwriting pen is pulled out from the hollow cylindrical body. 5. The outer wall of the hollow cylinder and the inner wall of the handwriting pen, or the inner wall of the groove provided in the main body of the device for storing the handwriting pen and the outer wall of the handwriting pen, wherein one wall has a protrusion on the other wall. The abutting portion is provided, and the handwriting pen is held at a position where the handwriting pen is inserted into the hollow cylindrical body by the engagement of both parts and the power supply is not cut off. The handwriting input device according to 3 or 4.