JP2552665B2 - Electronic drafting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to an electronic drafting apparatus.

(Prior Art) The conventional drafting device is a drafting plate with adjustable height and angle.
A mechanical type is generally provided in which an XY ruler is provided, and lines, characters, etc. are written on the paper placed on the drafting plate with a pencil or a lot ring.

In addition, in recent years, an electronic device has been proposed, in which a tablet, a CAD with a CRT screen, and a plotter are connected to a personal computer, and the line drawing written on the tablet is processed by clear writing and punched out on the plotter. Has been done.

In this electronic drafting device, the line drawing drawn on the tablet is displayed on the CRT of CAD at a position distant from the tablet, and the completed drafting is punched out by the plotter.

(Problems to be Solved by the Invention) However, in the conventional electronic drafting device as described above, although it is convenient to use various CAD functions, the following problems are encountered as a drafting device. , Which narrows the range of application.

Unlike the mechanical drawing plate, the tablet is not adjustable in height and angle, so the drawing posture is poor and drawing efficiency does not increase.

Since the figure written on the tablet is displayed at a different scale on a small TV screen at a position apart from the tablet, the drawing position becomes unclear and a precise drawing cannot be drawn.

Since various mechanical members such as tablets, CAD, and plotters are connected to the personal computer in a disjointed manner, there is no unity, operability, space saving, and flexibility are lacking, and usability is poor.

Therefore, the present invention improves the problems as described above, has good usability, and can draw a precise figure efficiently.
An object is to provide an electronic drafting device having a wide range of applications.

[Configuration of Invention] (Means for Solving Problems) In view of the conventional problems as described above, the present invention provides a CAD as a drawing means, a screen and a pen connected to the CAD, and a drawing result on a paper surface. In the electronic drafting device comprising output means for outputting to the above, the screen has a filter surface on the upper surface of the tablet sensor surface provided on the upper surface of the display surface, and the screen of the pen is provided separately from the tablet sensor surface. It is equipped with a digitizer sensor that detects the X and Y coordinate positions, and
A tablet mode in which CAD is used to perform drawing processing and a digitizer mode in which drawing processing is performed according to the movement of the pen by sensing by the digitizer sensor are possible.

(Embodiment) FIG. 1 and FIG. 2 are a front view and a right side view of an electronic drawing apparatus showing an embodiment of the present invention.

As shown in the figure, the electronic drafting device 1 shown in this example has a drafting plate 3 whose height and angle can be freely adjusted.

The height is adjusted by vertically moving a slide member 9 which can be raised and lowered along a foot 7 on a base 5 by a cylinder 11, and a bracket 13 is provided between the slide member 9 and the back surface of the drawing plate 3.
Is intervening.

The angle adjustment is performed by rotating a shaft 17 by driving a cylinder 15 provided between the apex of the cylinder 11 and the back surface of the drawing plate.

In order to perform these height adjustment and angle adjustment, switches SW1 and SW2 for height adjustment are provided on the right side of the lower surface of the drawing plate 3,
Switches SW3 and SW4 for adjusting the angle are provided.

A screen 19 is provided on the front surface of the drafting plate 3.
The size of the screen 19 is sufficient for drawing work, for example 1200
It is said to be mm x 1600 mm. At the lower end of the screen 19, a command area CA that displays CAD commands is provided.

A panel switch 21 for inputting characters and numbers is provided below the screen 19 on the right side, and above the panel switch 21 is a liquid crystal displaying a character input from the panel 21. A panel 23 is provided.

Above and to the left of the screen 19, the digitizer sensor 25 (25x, 25x) is provided separately from the tablet sensor shown in FIG.
y) is provided.

On the other hand, on the left side of the back side of the drawing plate 3, there is a roll paper storage box.
27 is provided, and the roll paper in the box 27 passes through the drawing plate and is output from the output port 29 on the right side through a plotter (not shown).

FIG. 3 is an explanatory view showing the details of the pen and the drafting plate 3.

As shown in the figure, the pen 31 includes a knock 31a, a dimple 31b, and a knock 31a similar to those of an ordinary mechanical pencil.
A core 31c that is projected by the operation of a is provided.
The dimple 31b is provided with a switch 31d for inputting coordinates.

The screen 19 has a layered structure in which a filter surface 19a for preventing static electricity and protection of the human body (eyes), a tablet sensor surface 19b, and a display surface 19c are stacked in this order from the top surface.

The pen 31 projects the lead 31c when the knock 31a is turned on,
Magnetism is generated from the core. The position of the core is detected by the digitizer sensor 25 (25x, 25y) in the digitizer mode described later, and the switch in the tablet mode.
The core position when 31d is turned on is detected by the tablet sensor surface 19b.

Referring again to FIG. 2, reference numeral 33 indicates a drawing means.
Shows CAD. Although the CAD 33 is fixed to the back surface of the drafting plate 3 in this example, it goes without saying that the CAD 33 may be provided separately from the drafting plate.

 FIG. 4 is a block diagram of the control device.

The illustrated control device 35 includes the switches SW1 to SW4 and the cylinders 11 and 13.

The control device 35 has a central processing unit 37 as a center, and the CAD 33 and I / O devices 39 and 41 are connected thereto. I / O device 39
A panel switch 21, a tablet sensor 19b, and digitizer sensors 25x and 25y are connected to the. The I / O device 41 includes a display screen 19c, a liquid crystal panel 23, and a plotter 4.
1, hard disk 43 is connected. The CAD 33 has a screen memory 33a.

FIG. 5 is an explanatory diagram of mode types. As shown,
In this example, the mode types are tablet mode 45, digitizer mode 47, hard disk read mode 49,
The hard disk storage mode 51 and other modes 53 are used.

The tablet mode is a mode in which drawing processing is performed by making full use of CAD 33 by sensing of the tablet sensor 19b.

The digitizer mode 47 is a mode in which drawing processing according to the movement of the pen 31 is performed by sensing by the digitizer sensors 25x and 25y.

The hard disk read mode 49 is a mode for reading a predetermined drawing from the hard disk 43 on the display surface 19c at the time of starting drawing or checking the drawing.

The hard disk storage mode 51 is a mode for storing a drawing whose drawing has been completed in the hard disk 43.

The other mode 53 is a mode for operating the plotter and transferring data to / from another connecting member such as a CAM.

FIG. 6 shows the drawing method in the tablet mode.

In step 601, the command on the command area CA is selected by the pen 31.

 The command types are as follows.

(I) Screen display command Enlarge, zoom, move, standard display (II) Drawing command Two-point straight line, parallel line, vertical line, angle line, cross line, continuous line, screen horizontal line, screen vertical line, rectangle, polygon, etc. Command Circular command such as 2-element circle, 3-element circle, 4-element circle, circular arc, etc. Ellipse, elliptic arc, specified elliptic arc, free curve, etc.
Free-form curve command (III) Auxiliary drawing system command Normal dimension, character position designation, automatic dimension allocation, additional dimension instruction command for linear dimension line Circular dimension line instruction command for diameter, radius, ARC, corner drop, angle (IV) Screen line book command Copy command of same scale, enlargement, reduction, rotation, copy between layers, etc. Copy command Move command of same scale, enlargement, reduction, rotation, symmetry, etc. Delete finite element in frame, delete infinite element in frame, partial Erase command such as erase In step 602, the selected command is used to knock 3
Screen 1 while operating switch 31d of pen 31 with 1a on
9 Input the pen at the specified position above. At this time, the scale can be appropriately displayed on the screen 19.

In step 603, the CAD 33 operates to process the command.

In step 604, a predetermined drawing is performed by operating the pen 33 and operating the CAD 33, and the contents are displayed on the screen 19 (display surface 19c) and stored in the memory 33a.

The processing of steps 601 to 604 is repeated until it is determined in step 605 that the drawing has ended.

In step 607, it is determined whether or not the data is stored in the hard disk 43, and in step 608, it is determined whether or not the data is output by the plotter 41.

In step 607, the storage processing to the hard disk is performed, and in step 609, the drawing content is printed on the A1-A4 or B2-B4 size paper. The scale is freely set by the command.

Incidentally, in the preceding stage of step 601, it is possible to read out the drawing stored in the hard disk 43 and use it as the reference screen.

FIG. 7 shows the processing contents in the digitizer mode 47.

In step 701, a preface drawing is appropriately placed on the screen 19 and the drawing is traced with the pen 31. Step 701
In the pre-stage, we plan to trace the preface drawings in this way, so that the maximum range of drafting can be confirmed with the digitizer sensors 25x and 25y. This is because the size of the drawings can be confirmed in advance, because the work of replacing the drawings placed on the screen 19 cannot be permitted.

In step 702, the traced position and figure are displayed and stored by sensing by the digitizer sensors 25x and 25y.

 In step 703, it is determined whether the drawing is completed.

In step 704, it is determined whether there is a need for partial clean copy.

In step 705, in response to the need for a clean copy, the part touched by the pen 31 is copied.

In steps 706 and 708, the hard disk storage and plotter output are judged.

In steps 707 and 709, storage in the hard disk and plotter output are executed.

As described above, in this embodiment, since it is possible to perform drafting toward the drafting plate 3 whose height and angle can be freely adjusted,
Drawing efficiency is improved.

Since the drawing surface 3, the display surface, the tablet sensor, and the digitizer sensor are provided, the drawn drawing can be displayed on the screen 19 in a 1: 1 ratio, and the drawing can be performed in the same manner as ordinary drawing. .

Further, at this time, the function of CAD33 can be exhibited, so that the drafting efficiency is improved.

Further, in the above embodiment, the hard disk 43, A1 ~ A4, B
Since the plotter 41 capable of plotting is provided on the roll paper of 2 to B4 size, it is possible to freely refer to and save the drawings, which enables highly flexible drawing work.

The present invention is not limited to the above-mentioned embodiments, but can be implemented in other modes by making appropriate design changes.

[Effects of the Invention] As will be understood from the above description of the embodiments, the present invention is such that the CAD (33) as a drawing means, the screen (19) connected to the CAD (33), and the pen ( 31) and an electronic drafting apparatus comprising an output means for outputting the drafting result on a paper surface, the screen (19) is a tablet sensor surface (19c) provided on the upper surface of the display surface (19c).
b) is provided with a filter surface (19a) on the upper surface, and is provided with a digitizer sensor (25) for detecting the X, Y coordinate position of the pen (31) separately from the tablet sensor surface (19b), A tablet mode (45) that performs drawing processing by making full use of the CAD (33) by sensing on the tablet sensor surface (19b), and drawing processing that follows the movement of the pen (31) by sensing by the digitizer sensor (25). The digitizer mode (47) to be performed and the configuration are possible.

As is apparent from the above configuration, in the present invention, the configuration of the screen 19 is a configuration including a tablet sensor surface 19b on the upper surface of the display surface 19c, and a digitizer sensor 25 separately from the tablet sensor surface 19b. , Tablet mode that uses CAD33 by sensing the tablet sensor surface 19b to perform drawing processing, and digitizer sensor
Since it is possible to use the digitizer mode in which the sensing processing of 25 allows the pen 31 to perform the drawing processing exactly as it moves, CAD33
It is possible to draw according to the command of
It is possible to draw by tracing the top with the pen 31, and the drawn drawing can be displayed on the screen 19 in a 1: 1 ratio, so that it is possible to draw with a normal drawing feeling.

[Brief description of drawings]

1 and 2 are a front view and a right side view of an electronic drawing apparatus according to an embodiment of the present invention, and FIG. 3 is an explanatory view showing a structure of a pen and an internal structure of a drawing plate, and FIG. Is a block diagram of the control device, FIG. 5 is an explanatory diagram of mode types, FIG. 6 is a flowchart of drawing processing in the tablet mode, and FIG. 7 is a flowchart of drawing processing in the digitizer mode. 1 …… Electronic drafting machine, 3 …… Drawing plate 11 …… Height adjustment cylinder 13 …… Angle adjustment cylinder 19 …… Screen, 19b …… Tablet sensor 19c …… Display surface 21 …… Character input panel Switch 25a, 25y …… Digitizer sensor 31 …… Pen, 33 …… CAD 41 …… Plotter, 43 …… Hard disk

Claims (1)

(57) [Claims] 1. A CAD (33) as drawing means, and the above CAD
In an electronic drafting device comprising a screen (19) connected to (33), a pen (31), and an output means for outputting a drafting result on a paper surface, the screen (19) is displayed on the display surface (19c). The tablet sensor surface (19b) provided on the upper surface is provided with a filter surface (19a) on the upper surface, and a digitizer sensor (X) which detects the X and Y coordinate positions of the pen (31) separately from the tablet sensor surface (19b) ( 25), and the CAD by sensing the tablet sensor surface (19b).
Tablet mode (4)
An electronic drafting device, which is capable of performing 5) and a digitizer mode (47) that performs drafting processing according to the movement of the pen (31) by sensing of the digitizer sensor (25).