JPH0512940U - Digitizer sensor plate - Google Patents

Abstract

(57) [Abstract] [Purpose] Wiring a sensor wire on the insulating flat plate in a predetermined pattern in the X-axis and Y-axis directions by arranging a sensor wire turnback portion on the outside of the insulating flat plate, the insulating flat plate periphery Provided is a digitizer sensor plate of electromagnetic induction type which is configured by a step of adhesively fixing the sensor wire in the inside to an insulating flat plate, etc., and protects the folded portion of the sensor wire from the risk of disconnection in a later step and is lightweight and easy to handle. It is a thing. [Structure] A sensor wire is laid in a predetermined pattern in the X-axis and Y-axis directions on an insulating flat plate, and a sensor wire turnback portion is provided on the outside of the insulating flat plate for wiring to insulate the end of the wired sensor wire. Derived from the flat plate, the sensor wire on the insulating flat plate excluding the peripheral portion of the insulating flat plate is fixed on the flat plate with an adhesive,
The folded-back portion of the sensor wire is bent and arranged within the peripheral edge of the insulating flat plate, and a protective cover for covering the folded-back portion of the sensor wire is fixed on the insulating flat plate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electromagnetic induction type digitizer sensor plate used in a figure input device for CAD.

[0002]

[Prior Art]

 Conventionally, an electromagnetic induction type digitizer sensor plate configured as shown in FIG. 4 has been used for an information input device such as CAD. The sensor wire 2 is wired as shown in FIG. First, a plurality of sensor wire arranging pins 4 are arranged at predetermined intervals around the outer side of the insulating flat plate 3, and the sensor wire 2 having an insulating coating on the wire arranging pins 4 extends in the X-axis direction. Wiring is performed in a predetermined pattern while being hooked and folded back in each Y-axis direction, and the sensor wire terminals 8, 8 in the X-axis direction and the Y-axis direction are led out from the insulating flat plate 3. Next, an adhesive 5 is applied on the sensor wire 2 excluding the peripheral portion on the insulating flat plate 3, and the sensor wire 2 is embedded and fixed on the flat plate 3. After that, the sensor wire folded-back portion 7 is removed from the wiring pin 4 and is bent and arranged on the plate peripheral portion 11 on the flat plate 3 which is not filled with the adhesive. Was applied to fix the sensor wire folded-back portion 7 to the peripheral edge portion 11 on the insulating flat plate 3 for manufacturing.

[0003]

[Problems to be solved by the device]

 The above-mentioned conventional digitizer sensor plate is filled and fixed with an adhesive when processing the sensor wire turnaround portion on the outside of the insulating flat plate. Therefore, in the work of applying and fixing the adhesive on the folded portion of the sensor line, the folded portion of the sensor line is fixed to the insulating flat plate while protruding from the adhesive layer, and a break occurs at the protruding portion of the sensor line during the manufacturing process. There was a risk. Further, the work of adhering and fixing the folded portion of the sensor wire to the insulating flat plate with an adhesive takes time to solidify the adhesive, which is inferior in workability, and the sensor plate is heavy due to the weight of the adhesive.

The present invention solves the above-mentioned drawbacks and provides a digitizer sensor plate which protects the folded portion of the sensor wire from the risk of disconnection by a simple means and is easy to handle during the manufacturing process.

[0005]

[Means for Solving the Problems]

 The sensor wires coated with insulation are provided in the X-axis and Y-axis directions on the insulating flat plate at predetermined intervals outside the insulating flat plate, and are folded back to form a meandering shape. In the digitizer sensor plate in which the sensor wire end wired to the insulating flat plate is led out, and the sensor wire excluding the peripheral portion of the insulating flat plate is fixed and fixed on the insulating flat plate with an adhesive, The sensor wire folded-back portion is folded and housed in the peripheral edge portion of the insulating flat plate not filled with the adhesive, and a protective cover for covering the sensor wire folded-back portion is provided.

[0006]

[Action]

 After the folded portion of the sensor wire is bent around the periphery of the insulating flat plate, the folded portion of the sensor wire is covered with a protective cover to prevent the sensor wire folded portion from being broken during the working process. Further, by using a protective cover in place of the conventional adhesive, the sensor plate can be made lighter and can be easily handled during the manufacturing process. It should be noted that if the protective cover is detachably fixed to the insulating flat plate with screws or the like, it is convenient for work such as repair of the sensor plate.

[0007]

【Example】

 Hereinafter, the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. 1 is a sectional view of a sensor plate showing an embodiment of the present invention, FIG. 2 is a partial perspective view showing an embodiment of a protective cover, and FIG. 3 is a view for explaining wiring of sensor wires. In FIG. 1, 2 is a sensor wire coated with an insulating film such as an ultra-fine magnet wire, 3 is an insulating flat plate made of transparent glass or epoxy glass plate, 5 is an adhesive to be a filling layer, and 6 is protection of a plastic material. It is a cover.

The digitizer sensor plate of the present invention is manufactured as follows. The wiring of the sensor wires 2 is similar to that described in the section of the prior art, as shown in FIG. 3, a plurality of sensor wire wiring pins 4 arranged at predetermined intervals on the outer peripheral edge of the insulating flat plate 3 are connected to the sensors. Wires 2 are hooked and folded back in sequence and laid in a predetermined pattern in the X-axis direction and the Y-axis direction respectively, and the terminal leads 8, 8 of the sensor lines 2, 2 in the X-axis direction and the Y-axis direction are insulated flat plates. It derives from 3. Then, the sensor wire 2 is fixed on the insulating flat plate 3 by applying an adhesive 5 on the sensor wire 2 excluding the peripheral portion 11 on the insulating flat plate 3 on which the sensor wire 2 is arranged in a predetermined pattern. .. Next, the folded-back portion 7 of the sensor wire 2 is removed from the sensor-wiring pin 4 and is bent and arranged at the peripheral portion 11 on the insulating flat plate 3 to which the adhesive 5 is not applied.

Next, a protective cover 6 (shown in FIG. 2) is arranged on the insulating flat plate 3 so as to cover the folded portion 7 of the sensor wire 2 bent on the insulating flat plate 3 as shown in FIG. Fix the cover 6 to the insulating flat plate 3 with screws 10 or the like. At this time, the terminal lead portions 8 of the sensor wires 2 and 2 are led out from the sensor wire lead-out port 9 provided in the protective cover 6 to form the sensor plate 1. Needless to say, the shape of the protective cover 6 is not limited to that of the embodiment and can be variously changed. Further, when the protective cover 6 is attached and fixed to the insulating flat plate 3, it may be fixed by using an adhesive, or a groove may be provided in the protective cover 6 and the protective cover 6 may be fitted to the insulating flat plate 3. .

[0010]

[Effect of the device]

 According to the digitizer sensor plate of the present invention, in the sensor plate in which the folded portion of the sensor wire is outside the insulating flat plate, the folded folded portion of the sensor wire is arranged inside the peripheral edge of the insulating flat plate to cover the folded portion of the sensor wire. Since a protective cover is installed and fixed to an insulating flat plate, it is possible to prevent disconnection accidents due to external forces during the manufacturing process and obtain a highly reliable sensor plate. In addition, the use of a protective cover instead of the conventional adhesive reduces the weight of the sensor plate and improves the handling during the manufacturing process.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a digitizer sensor plate showing an embodiment of the present invention.

FIG. 2 is a partial perspective view of a protective cover used in the present invention.

FIG. 3 is a diagram illustrating a wiring process of sensor wires on a digitizer sensor plate.

FIG. 4 is a sectional view of a conventional digitizer sensor plate.

[Explanation of symbols]

 1 Digitizer sensor plate 2 Sensor wire 3 Insulating flat plate 4 Sensor wire wiring pin 5,5A Adhesive 6 Protective cover 7 Sensor wire folded portion 8 Sensor wire lead wire terminal 9 Terminal lead wire outlet 10 Screw 11 Digitizer sensor plate Edge of

Claims (1)

[Scope of utility model registration request] 1. A sensor wire coated with an insulating coating is provided in the X-axis and the Y-axis direction on the insulating flat plate at predetermined intervals outside the insulating flat plate to fold the windings in a meandering manner, and the X-axis is arranged. In the digitizer sensor plate, the sensor wire terminals wired in the Y-axis direction and the Y-axis direction are led out from the insulating flat plate, and the sensor wires except for the peripheral edge of the insulating flat plate are filled and fixed on the insulating flat plate with an adhesive. A digitizer sensor plate, characterized in that a folded portion of the sensor wire outside the insulating flat plate is folded and housed in a peripheral portion of the insulating flat plate not filled with the adhesive, and a protective cover is provided to cover the folded portion of the sensor wire.