JP3112502B2 - Stylus pen - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless stylus used for a coordinate input device.

[0002]

2. Description of the Related Art FIG. 2 shows an example of a conventional stylus pen of this kind. In FIG.
A tuning circuit unit including a coil unit 2, a pen down switch unit 3, a side switch unit 4, a chip capacitor 5, trimmer capacitors 6, 7, a board 8 and a housing 9, B is a case, and C is a side switch knob.

The core 1 is a bar-shaped member having a small hemispherical tip, and the rear end of the core 1 reaches the inside of the pen-down switch unit 3 through the coil unit 2 where it is attached and detached. Coil unit 2
Is formed by winding a litz wire with low high-frequency resistance on a ferrite core having a through hole through which the core body 1 can be slidably inserted, and is fixed and held by the pen-down switch unit 3. The pen-down switch unit 3 has a switch mechanism (not shown) therein, and is pressed by the rear end of the core 1 to perform an on / off operation. The side switch unit 4 is a tact-type switch, and is mounted on a substrate 8 made of glass epoxy or the like together with the chip capacitor 5 and the trimmer capacitors 6 and 7.

The housing 9 is connected to the pen-down switch unit 3 via the back side of the board 8, and the board 8 is fixed integrally with the pen-down switch unit 3 together with its mounting parts. The side switch unit 4, the chip capacitor 5, and the trimmer capacitors 6 and 7 are connected to each other by a conductor pattern (not shown) on the substrate 8, and the coil unit 2 and the pen-down switch unit 3 have their litz wires and Each is connected via a terminal and constitutes a well-known tuning circuit having a frequency switching function.

A tuning circuit unit A having the above-described configuration
Is inserted and stored inside the rod-shaped case B from the side of the core 1, and a side switch knob C is provided on the side of the case B.
However, the upper half of a pen (not shown) is attached to the upper part to constitute a cordless stylus pen. 3A is a cross-sectional view of a mounting portion of the trimmer capacitor 6 (or 7), and FIG. 3B is a cross-sectional view of a mounting portion of the side switch unit 4.

[0006]

However, the stylus pen has a problem that the stylus pen is expensive due to a large number of parts and a large number of assembly steps. The trimmer capacitors 6 and 7 are for finely adjusting the tuning frequency before and after the frequency switching, respectively. Since the adjustment is preferably performed with the tuning circuit unit A housed in the case B, the driver D Must be inserted through an adjustment hole B 'provided on the side surface of the case B, and there is a problem that the adjustment operation in a state where the pen-down switch unit 3 is operated is particularly troublesome. Also,
As the side switch unit 4, a snap-action type switch having high performance, that is, less chattering and excellent durability is desirable. However, since the size in the height direction is large, a configuration that directly connects to the pattern on the substrate 8 cannot be obtained. ,
There was a problem that implementation was difficult.

[0007] In view of the above-mentioned conventional problems, the present invention has a small number of parts and a small number of assembling steps, and is easy to adjust.
Moreover, it is an object of the present invention to provide a stylus pen on which a high-performance side switch unit can be mounted.

[0008]

In order to achieve the above object, the present invention provides a stylus pen in which electronic parts such as a chip capacitor are housed in a case together with mechanical parts such as a pen down switch unit. So ,
An insulating member having a shape corresponding to the electronic component and the mechanical component is formed by resin molding, and a component holder having a conductive pattern formed on a surface of the insulating member is provided. The electronic component is mounted on the component holder. A stylus pen in which the component holder is electrically and mechanically coupled to the mechanical component and stored in a case, the stylus pen having a shape capable of storing a trimmer capacitor at one end of the component holder in the axial direction, and at least a terminal Provide a storage part formed by forming a conductor pattern in a part corresponding to the above, and mount a trimmer capacitor in the storage part
And scan Tairasupen also, as claimed in claim 2, having a shape capable of accommodating the lower portion of the side switch unit part holder, provided with a housing recess formed by forming a conductor pattern in a portion corresponding to at least a terminal, said stylus mounting the side switch unit housing recess claim 1 Symbol placement, also, as claimed in claim 3, electrodeposition such as a chip capacitor
Child parts with mechanical parts such as a pen down switch unit
It is a stylus pen that is stored in the case,
Insulating part with shape corresponding to electronic parts and mechanical parts
Material is formed by resin molding, and a conductor is
A component holder having a pattern formed therein;
The electronic components are mounted on the
Electrically and mechanically connected to parts and stored in case
In the stylus pen, the part where the conductor pattern is not formed is injection-molded with the grade resin that does not contain the plating catalyst. A stylus pen using a component holder having a conductor pattern formed by forming a member and further plating the surface of the insulating member is proposed.

[0009]

According to the first aspect of the present invention, the electronic component is mounted on the component holder by the component holder having the conductor pattern integrated, and the mechanical component is electrically and mechanically connected to the component holder. These are integrally housed in the case , and the trimmer capacitor is mounted on the case in the axial direction and is directly connected to the conductor pattern of the component holder. According to the second aspect , the lower portion of the side switch unit is housed in the component holder and mounted, and is directly connected to the conductor pattern of the component holder. According to the third aspect , the conductor pattern is one.
The electronic component is moved by the component holder
And the mechanical parts are electrically connected to the part holder.
And mechanically connected, and these are integrated into the case
In addition, the conductor pattern can be formed into a three-dimensional and rational shape corresponding to each component.

[0010]

FIG. 1 shows an embodiment of a stylus pen according to the present invention. In the drawing, the same components as those of the conventional example are denoted by the same reference numerals. That is, 1 is a core, 2 is a coil unit, 5
Is a chip capacitor, 6 and 7 are trimmer capacitors, 10
Is a component holder, 21 is a pen down switch unit, 2
2 is a side switch unit.

As shown in FIG. 4A, the component holder 10 has a flat portion 11 for mounting an electronic component such as a chip capacitor, and a trimmer capacitor mounting portion provided continuously at one end of the flat portion 11. And a connecting portion 13 with a pen-down switch unit continuously provided at the other end of the flat portion 11, and a storage recess 14 for mounting a side switch unit provided in a part of the flat portion 11. Consists of FIG. 4B and FIG.
(c) A conductor pattern 15 as shown by hatching is provided therein. The flat portion 11 and the storage portion 12 have through holes 11a, 1 corresponding to the terminals of the trimmer capacitor.
1b and 12a, 12b are provided.
Are provided with through holes 13a and 13b corresponding to the terminals of the pen down switch unit 21, and the storage recess 14 is provided with through hole through holes 14a and 14b corresponding to the terminals of the side switch unit. The flat portion 11 is also provided with through holes 11c and 11d for connecting wiring from the coil unit.

The component holder 10 is, for example, a plating catalyst.
Do not form conductor patterns with resin that does not enter
Injection molding of the part
The part that forms the conductor pattern with resin is integrally injection molded
To form an insulating member, and further, on the surface of the insulating member.
Forming a conductor pattern by plating
4 (b) and 4 (c).
The part corresponding to the conductor pattern and each through hole shown in
Part molded with resin of a grade that can contain plating catalyst
Is equivalent to

The pen-down switch unit 21 has a variable capacitance capacitor therein, and is pressed by the rear end of the core 1 to change the capacitance value. Fix 2 ・
It is going to hold. The pen-down switch 21 is connected to the connecting portion 13 of the component holder 10 with its terminal pins 21a,
21b is inserted into the through holes 13a and 13b, and is attached by soldering as necessary.
The pen-down switch unit is a "variable capacitor" proposed by the applicant (Japanese Patent Application No. 2-20 / 1990).
No. 6774) is suitable, but the present invention is not limited to this, and a normal on / off operation type switch may be used.

The side switch unit 22 is a snap-action type switch, and the lower part thereof is the component holder 1.
In addition to being accommodated in the accommodating concave portion 14, the terminals (not shown) are inserted into the through holes 14a and 14b, and are mounted by soldering.

The chip capacitor 5 is a component holder 1
The trimmer capacitor 6 has its terminals (not shown) connected to the through holes 11 in the flat portion 11 of the component holder 10.
a, 11b, and they are mounted by soldering. The trimmer capacitor 7 is mounted by housing its main body in the housing 12 of the component holder 10, inserting its terminals (not shown) into the through holes 12a, 12b, and soldering them. Then, the conductor pattern 15 of the component holder 10 is set such that the adjustment operation is performed while the pen-down switch unit 3 is operated by the trimmer capacitor 7 mounted on the storage section 12.) The coil unit 2 is soldered to the through holes 11c and 11d of the component holder 10 via its litz wire, and by connecting these components, a well-known tuning circuit having a frequency switching function similar to that of the conventional example is formed. Has become.

The tuning circuit unit having the above-described configuration is inserted and housed in the rod-shaped case B from the side of the core 1 in the same manner as in the conventional example. The side switch knob C has an upper half of a pen (not shown) attached to the upper portion thereof to constitute a cordless stylus pen. FIG. 5 is a cross-sectional view of a mounting portion of the side switch unit 22, FIG. 6A is a cross-sectional view of a mounting portion of the trimmer capacitor 7, and FIG. 6B is a top view of the same.

According to the above configuration, the conventional portion composed of two members, the board and the housing, can be replaced with one component holder 10, and the number of components and the number of assembling steps can be reduced by that much, and the cost can be reduced. Can be achieved. Further, by providing the storage portion 12 in the component holder 10 and mounting the trimmer capacitor 7, the trimmer capacitor 7 can be mounted in the case B in the axial direction,
Therefore, the adjustment operation can be performed by inserting the driver D from the upper part of the case B, and the adjustment operation can be easily performed while the pen down switch unit 21 is operated. In addition, a connecting portion 13 is provided on the component holder 10,
Further, by providing the through holes 13a and 13b in this, the component holder 10 and the pen down switch unit 2 are provided.
1 can be easily made via the terminal pins. Furthermore, by providing the storage recess 14 in the component holder 10 and mounting the side switch unit 22, a high-performance side switch unit having a large dimension in the height direction can be used.

[0018]

As described above, according to the first aspect of the present invention, there is provided a stylus pen in which electronic components such as a chip capacitor are housed in a case together with mechanical components such as a pen down switch unit. An insulating member having a shape corresponding to the component and the mechanical component is formed by resin molding, and a component holder having a conductive pattern formed on a surface of the insulating member is provided, and an electronic component is mounted on the component holder. And a stylus pen that is electrically and mechanically connected to the mechanical component and stored in the case.
The trimmer capacitor at one end of the component holder in the axial direction.
A part that has an acceptable shape and at least corresponds to the terminal
A storage section formed with a conductor pattern at
For mounting the trimmer capacitor housed portion, can be integrated with the conventional substrate and the housing, that amount, the number of parts can be reduced and assembly steps, the costs can be reduced
In both cases, install the trimmer capacitor in the axial direction with respect to the case.
Can be attached, especially a pen as the trimmer capacitor
Make adjustments with the down switch unit operating.
If a trimmer capacitor is used, the adjustment operation is easy.
Becomes

[0019]

According to the second aspect of the present invention, the storage recess having a shape capable of storing the lower portion of the side switch unit in the component holder and having a conductor pattern formed at least at a portion corresponding to the terminal is provided. Since the side switch unit is mounted in the storage recess, the amount of protrusion of the side switch unit from the component holder can be reduced, and a high-performance switch having a large dimension in the height direction can be used as the side switch unit. Can be.

According to a third aspect of the present invention, a chip
Pen down switch unit for electronic components such as capacitors
Styler housed in a case with mechanical parts such as
A spen with a shape corresponding to electronic components and mechanical components
An insulating member having a
A component holder with a conductor pattern formed on the surface of the member
Having electronic components mounted on the component holder,
The component holder is electrically and mechanically
In the stylus pen stored in the case, the part where the conductive pattern is not formed with the resin of the grade that does not contain the plating catalyst is injection molded, and the part that forms the conductive pattern with the resin of the grade that the plating catalyst enters is integrated with this injection molding to create an insulating member, since using a component holder in which a conductor pattern is formed by further plating the surface of the insulating member, integrating the conventional substrate and the housing
And the number of parts and assembly man-hours can be reduced.
The stylus pen can be stowed down, and the conductor pattern can be formed in a three-dimensional and rational shape corresponding to each component, so that a stylus pen with good productivity and high performance stability can be realized.

[Brief description of the drawings]

FIG. 1 is a main part configuration diagram showing an embodiment of a stylus pen of the present invention.

FIG. 2 is a main part configuration diagram showing an example of a conventional stylus pen.

FIG. 3 is a sectional view of a main part of the stylus pen of FIG. 2;

FIG. 4 is a view showing details of a component holder in FIG. 1;

FIG. 5 is a cross-sectional view of a mounting portion of the side switch unit of the stylus pen of FIG. 1;

FIG. 6 is a sectional view and a top view of a mounting portion of the stylus pen of FIG. 1 where a trimmer capacitor is mounted.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Core body, 2 ... Coil unit, 5 ... Chip capacitor, 6, 7 ... Trimmer capacitor, 10 ... Component holder, 1
DESCRIPTION OF SYMBOLS 1 ... Flat part, 12 ... Storage part, 13 ... Connection part, 14 ... Storage recessed part, 21 ... Pen-down switch unit, 22 ... Side switch unit.

Claims (3)

(57) [Claims] 1. A stylus pen electronic components such as chip capacitors with mechanical parts such as a pen down switch unit comprising housed in a case, an insulating member having a shape corresponding to the electronic components and mechanical components It has a component holder formed by resin molding and having a conductor pattern formed on the surface of the insulating member. The electronic component is mounted on the component holder, and the component holder is electrically and mechanically connected to the mechanical component. With the stylus pen assembled and stored in the case , the trimmer capacitor is axially stored at one end of the component holder.
At least in the area corresponding to the terminal
Providing a storage portion formed with a conductor pattern,
A stylus pen characterized by mounting a trimmer capacitor on the stylus. 2. A side switch unit is mounted on a component holder.
It has a shape that can accommodate the lower part, and at least
An accommodating recess formed by forming a conductor pattern
The stylus pen according to claim 1 , wherein a side switch unit is mounted in the storage recess . 3. An electronic component such as a chip capacitor is provided in a pendant.
Together with mechanical parts such as the switch unit
A stylus pen to be housed, the insulating portion having a shape corresponding to an electronic component and a mechanical component.
Material is formed by resin molding, and a conductor is
A component holder having a pattern formed therein ; an electronic component mounted on the component holder;
Electrically and mechanically couples the
In the stylus pen stored in the above , the conductive pattern is
Injection molding of non-forming parts, into which plating catalyst enters
The part that forms the conductor pattern with grade resin is integrated
To form an insulative member,
Conductor pattern is formed by plating the surface of the material
Features and to Luz Tairasupen for using the part holder.