JPH04422Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is an electromagnetic induction type digitizer.
The present invention relates to a holder for temporarily placing an excitation device such as a stylus pen or a cursor within the effective reading area of a digitizer when not in use.

[Prior art]

Generally, in an electromagnetic induction digitizer, when the digitizer is turned on, a weak current flows through the coil of the excitation device, and when the excitation device is placed within the effective reading range of the tablet, the tablet detects the weak magnetic flux of the coil. The device lights up a lamp to indicate that reading is possible (or that reading is in progress). Further, when reading, necessary data is read by pressing an input button provided on a cursor or stylus pen (hereinafter referred to as a pen including the cursor) which is an excitation device. Further, when temporarily interrupting the reading operation, the pen 1 is placed in a holder 5 located on the outer periphery 4 outside the effective reading range 3 of the tablet 2, as shown in FIG.
to prevent unnecessary data from being read due to erroneous operation of the input button 6.

Normally, when the surface 7 on which the object to be read, for example, a drawing, is placed is horizontal, the holder 5 is placed at A far from the operator's side.
placed on the side. Generally, scanning is performed with the surface 7 horizontal or tilted 10 degrees around the horizontal surface, but if the effective reading range 3 is A3 or less, the holder 5
There is no particular problem even if it is placed on the A side.

[Problem that the invention attempts to solve]

However, if the effective reading range 3 is A2 or
For tablet 2, which is A1 size, holder 5
If it is on the A side, it is difficult to place pen 1 because it is far away. Furthermore, even if the holder 5 is placed on the B side, which is the operator's side, or the side C side, the operability will be poor if it is placed only in one place, so it must be placed in several places at appropriate intervals on the outer circumference 4. First, there was a problem that the external dimensions of the tablet 2 became large.

The purpose of the present invention is to solve the above-mentioned problems by providing a holder that does not read data even if the input button 6 is pressed when the pen 1 is placed, and that can be moved to a nearby location. There is something to do.

[Means for solving problems]

The present inventor focused on the fact that the outer circumferential portion 4 is generally made of a steel plate, and as shown in FIG. A metal plate 11 larger than the outer diameter of a coil 10 built into the pen 1 is disposed between the surface 9 and a holder 13 in which a part of the surface 9 is made up of a permanent magnet 12.

[Effect]

The holder 13 is attracted and held by the permanent magnet 12 to the steel plate of the outer peripheral portion 4, which is a ferromagnetic material. Also, the coil 1 generated by pressing the input button 6
The magnetic flux of 0 is blocked by the metal plate 11. Therefore, the holder 13 can be held at any position on the outer peripheral portion 4.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be explained below with reference to FIGS. 1 to 3.

In FIG. 1, reference numeral 8 denotes a storage portion for the pen 1 provided in the holder 13.

9 is the bottom surface of the holder 13. 10 is a coil built into pen 1. Reference numeral 11 denotes a metal plate having a thickness T that is larger than the outer diameter of the coil 10, and its material may be not only aluminum, which is a non-magnetic material, but also iron, which is a ferromagnetic material. In addition, the plate thickness T is the sensitivity of the digitizer, that is, the effective reading range 3, as shown in Figure 2.
When the maximum distance between the coil 10 and the surface 7 from which data can be read by pressing the input button 6 of the pen 1 located inside the pen 1 is H, it is sufficient if T>0.1H. 12
is a permanent magnet fixed to the bottom of the holder 13. Note that the same parts as in FIG. 4 are given the same reference numerals.

The operation will be explained below.

The holder 13 is attracted by the permanent magnet 12 to the steel plate of the outer peripheral portion 4, which is a ferromagnetic material. Therefore, the holder 13 can be held at any position on the outer peripheral portion 4. Here, even if the input button 6 is pressed when the coil 10 of the pen 1 placed on the holder 13 is within the effective reading range 3, the magnetic flux generated by the coil 10 is blocked by the metal plate 11 and is unnecessary. It does not read any data.

Further, in this embodiment, the case where the outer circumferential portion 4 is made of a steel plate has been described, but a steel plate, a magnetic sheet, or the like may be attached to the surface of the outer circumferential portion 4.
Furthermore, it goes without saying that the permanent magnet 12 may be provided on the entire surface of the bottom surface 9, or the surface 9 may be covered with cloth or the like to an extent that the magnetic force is not reduced. Furthermore, the storage portion 8 may be provided in the metal plate 11 by molding the metal plate 11.

Note that some tablets in which a steel plate is disposed inside facing the effective reading range 3 can also be placed within the effective reading range 3, as shown by the two-dot chain line in FIG.

[Effect of idea]

As detailed above, according to the present invention, the pen 1
Since the holder 13 on which the material is temporarily placed can be placed nearby, the workability is improved.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view showing an embodiment of the present invention;
FIG. 2 is an explanatory diagram, FIG. 3 is a perspective view, and FIG. 4 is an explanatory diagram of the prior art. 1... Pen, 2... Tablet, 5, 13...
Holder, 9...surface, 10...coil, 11...metal plate, 12...permanent magnet.

Claims (1)

[Scope of utility model registration request] In an excitation device holder for temporarily mounting an excitation device of an electromagnetic induction digitizer, a metal plate larger than the coil is disposed between a coil built in the excitation device and a surface facing the tablet, and A holder for an excitation device characterized by having a permanent magnet arranged on a part or the entire surface.