JP2002023940A - Input pen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an input pen capable of optionally controlling the depression force of a return spring 13 by energizing an input chip 12 to the front in the longitudinal direction of the chip 12 by the return spring 13. SOLUTION: In the input pen to be used for a portable information terminal, a driver 9 is pivotally supported by a rear shaft 7 detachably fitted to a shaft cylinder 1. The tip of the driver 9 is projected by erecting the driver 9 and a receiving member 11 is rotated by the driver 9 to control the depression force of the return spring 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input pen used for a portable information terminal.

[0002]

2. Description of the Related Art In a conventional input pen used for a portable information terminal, a return spring urges an input tip forward so that the input tip can retreat when an excessive force is applied to the input tip. .

[0003]

However, in order to adjust the pressing force of the return spring for urging the input chip forward in the longitudinal direction according to the intended use, a driver for rotating the receiving member is required. There was, but it was very troublesome to carry a driver.

[0004] It is an object of the present invention to provide an input pen that solves the above problems.

[0005]

In order to achieve the above object, the present invention provides an input pen used in a portable information terminal, comprising: a shaft cylinder; and a front shaft detachably attached to a front portion of the shaft cylinder. An input chip built in the front shaft slidably in the longitudinal direction, a receiving member attached to the front shaft movably back and forth by rotation, and a tension member between the input chip and the receiving member. Return spring, a rear shaft detachably attached to the rear of the barrel, and a driver pivotally supported by the rear shaft. The return spring urges the input chip forward in the longitudinal direction, and The driver's tip is protruded by removing the shaft and standing up the driver, the driver's tip is fitted into the notch of the receiving member, and the receiving member is moved back and forth by rotating the driver, thereby returning It is obtained by configured to adjust the pressing force of the ring.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An input pen according to the present invention will be described below with reference to the drawings. The left side of the drawing is the front and the right side is the back. FIGS. 1, 2 and 3 show an embodiment of the present invention. A metal front inner shaft 2 is press-fitted and fixed to a front portion of a metal shaft cylinder 1. FIG. A reset pin 3 having a thin rod portion 3A is detachably screwed to the front inner shaft 2. In addition, the O-ring 4 is provided in the concave groove 3B of the reset pin 3, and the front inner shaft 2
And the reset pin 3 are prevented from loosening.

Further, a hole 3C dug from the rear end is formed at a rear portion of the reset pin 3, and a rear portion of the ballpoint pen refill 5 is detachably fitted into the hole 3C.

The writing section 5A of the ballpoint pen refill 5
Although it protrudes from the rear end of the rear inner shaft 6 which is press-fitted and fixed to the rear portion of the barrel 1, it is covered by a synthetic resin rear shaft 7 detachably fitted to the rear inner shaft 6. Means for fitting the rear shaft 7 to the rear inner shaft 6 includes a concave portion 6A of the rear inner shaft 6.
The inner projection 7A of the rear shaft 7 is fitted into the rear shaft 7. A soft input member 8 is attached to an inner hole 7B formed in a top portion of the rear shaft 7, and a substantially hemispherical input portion 8 is provided in the soft input member 8.
A is formed.

Further, as shown in FIG. 4, a raised portion 7C is formed on the rear shaft 7, and a concave groove 7D extending in the longitudinal direction is formed on the raised portion 7C. A projection 7E and a bead 7F facing each other are formed on both side surfaces of the concave groove 7D. The projection 7E
The driver 9 is pivotally supported on the rear shaft 7 by fitting a hole 9A of the plate-shaped driver 9 into the hole. Usually, the driver 9 is placed sideways and stored in the groove 7D, and the side surface of the driver 9 is sandwiched by the beads 7F.

The driver 9 has a substantially rectangular reset hole 9.
B is formed, and the non-circular portion 3D of the reset pin 3 cannot rotate and can be inserted into the reset hole 9B.

The raised portion 7C of the rear shaft 7 is designed to be easily pressed and removed with a finger when removing the input pen from the portable information terminal.
Non-slip is formed.

A receiving member 11 is screwed to the front shaft 10 made of synthetic resin so as to be movable in the longitudinal direction. Further, an input chip 12 made of synthetic resin is slidably built in the front shaft 10 in the longitudinal direction, and a return spring 13 is stretched between the input chip 12 and the receiving member 11. As shown in FIG. 5, a notch 11A is formed at the rear of the receiving member 11. Therefore, the front shaft 10 and the rear shaft 7 are
, The driver 9 pivotally supported by the rear shaft 7 is started up as shown in FIG. 6, and the tip of the driver 9 is inserted into the notch 11A of the receiving member 11. Next, if the receiving member 11 is rotated together with the driver 9, the receiving member 11 moves in the longitudinal direction, and the pressing force of the return spring 13 is arbitrarily adjusted to increase the force for urging the input chip 12 forward. Can be adjusted. The tip 12A of the input chip 12 is the front shaft 1
It protrudes from the front end of 0 as appropriate.

The input pen is used for pressure-sensitive input to a panel provided in a portable information terminal. When inputting fine characters or the like, an input chip provided at the front of the front shaft 10 is used. The use of 12 enables precise input. When a pointing input is performed, the input can be easily performed by using the soft input member 8.
In addition, two types of input operations can be performed simply by reversing the input pen, which is very convenient.

When an excessive force is applied to the input chip 12, the return spring 13 is compressed and the input chip 12 retreats, thereby preventing damage to the panel.

In addition, the force for pressing the return spring 13 forward can be adjusted according to the purpose of use.
The input chip 12 can be fixed, so that it can be used according to the user's preference.

Further, if the rear shaft 7 is removed, writing with the ballpoint pen refill 5 becomes possible, so that it is possible to check and make notes. Moreover, since the rear shaft 7 can be fitted to the front shaft 10 as well, the ballpoint pen feel 5
There is no risk that the rear shaft 7 will be lost during the writing.

Further, since the reset pin 3 is built in the input pen, when an abnormality occurs in the portable information terminal, the reset pin 3 is exposed by removing the front shaft 10 from the barrel 1. It is very convenient because it can be reset with.

When removing the ballpoint pen refill 5,
First, the front shaft 10 is removed from the barrel 1, and then the rear shaft 7 is removed, and the non-circular portion 3D of the reset pin 3 is inserted into the reset hole 9B of the driver 9. Then, if the reset pin 3 is turned and removed, the ballpoint pen refill 5 fitted into the hole 3C of the reset pin 3 can be removed from the barrel 1 together with the reset pin 3.

[0019]

As described above, according to the present invention, the driver supported on the rear shaft is raised and the receiving member is rotated to push the return spring according to the user's preference. Since the pressure can be adjusted, the return spring can be adjusted by a simple operation, the input operation can be performed in an optimum state, and the adjustment can be performed without selecting a place, which has a special effect.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an input pen of the present invention.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is an enlarged sectional view taken along line BB of FIG. 1;

FIG. 4 is an enlarged plan view showing a rear shaft of FIG. 1;

FIG. 5 is an enlarged sectional view showing the receiving member of FIG. 1;

FIG. 6 is a partial cross-sectional view showing a state in which the driver has been started.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 shaft cylinder 7 rear shaft 7C raised portion of rear shaft 7 7D concave groove of rear shaft 7 7E projection of rear shaft 7 driver 9A hole of driver 9 10 front shaft 11 receiving member 11A cutout portion of receiving member 11 input chip 13 Return spring

Claims (2)

[Claims] 1. An input pen used in a portable information terminal, comprising: a barrel, a front shaft detachably attached to a front portion of the barrel, and an input built in the front shaft so as to be slidable in a longitudinal direction. A tip, a receiving member attached to the front shaft so as to be able to move back and forth by rotating, a return spring stretched between the input tip and the receiving member, and detachably attached to a rear portion of the barrel. A rear shaft, and a driver pivotally supported by the rear shaft. The input spring is urged forward by a return spring in the longitudinal direction, and the driver is protruded by removing the rear shaft and starting the driver. The driver is fitted into the notch of the receiving member, the receiving member is moved back and forth by rotating the driver, and the pressing force of the return spring is adjusted. Input pen. 2. A protruding portion is formed on the rear shaft, a concave groove extending in the longitudinal direction is formed on the protruding portion, and a projection is formed on both sides of the concave groove. Fitting
2. The input pen according to claim 1, wherein the driver is normally housed in the groove, and when the driver is used, the driver is turned up to start.