JPH11305936A - Coordinate input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the time for inputting X, Y and X coordinate values and to improve operability. SOLUTION: An operating handle 1 vertically erected at the central part of a body 2 of control panel is provided, a positive or negative Z coordinate value is inputted from a Z coordinate value input switch means 6 provided at the upper part of the operating handle 1, the on time of the Z coordinate value input switch means 6 is counted by a Z value calculating means 30, a Z value is calculated and the X and Y coordinate values are found by a means 19 for calculating X and Y values by instructing the input of the X and Y coordinate values through the operation of the operating handle 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a coordinate input device for inputting coordinate values to a system such as a three-dimensional CAD system. CAD for machine design has become widespread, and in recent years the transition from two-dimensional to three-dimensional is progressing rapidly. 3D CAD
Is based on the three-dimensional representation of an object by the X and Y planes and the Z coordinate of the depth. Therefore, there is a demand for the development of a coordinate input device for directly and interactively indicating three-axis coordinates with a model on a screen.

[0002]

2. Description of the Related Art Many conventional coordinate input devices for three-dimensional CAD have a basic function of inputting X and Y coordinates used in conventional two-dimensional CAD. It can be said that most of the input is made with the numeric keys.
As shown in FIG. 38, X and Y coordinate values are input by the mouse 101 and the CPU 103
Send to Further, the input of the Z coordinate value is input using the numerical keys 106 of the keyboard 105 while viewing the screen of the display unit 104, and is sent to the CPU 103 via the interface 107. That is, looking at the screen 108 of the display unit 104 as shown in FIG.
Enter a number from. A three-dimensional CAD model creation program 112 is stored in the ROM 111 in FIG. 38, and the CPU 103 performs the following operations based on the input X, Y, and Z values.
A model is created according to the three-dimensional CAD model creation program 112. For example, model 1 as shown in FIG.
13 is created. The created model 113 is stored in the RAM 11
4 and displayed on the display unit 104.

[0003]

However, in such a conventional coordinate input device, when a three-dimensional shape is created, the X, Y, and Z values are intuitively created by the operator as parametric reference values. Since it is often necessary to set the formal dimensions later, there is a problem that it takes time and is cumbersome to use a device for inputting a numerical value from a keyboard.

The present invention has been made in view of such a conventional problem, and provides a coordinate input device which does not require much time for inputting coordinate values and can greatly improve operability. The purpose is to:

[0005]

In order to achieve this object, the present invention is configured as shown in FIG. According to the first aspect of the present invention, there is provided an operation handle 1 vertically provided at a central portion of an operation panel main body 2, and a Z coordinate value input switch provided at an upper portion of the operation handle 1 for inputting a plus or minus Z coordinate value. Means 6 and a Z value calculating means 30 for calculating the Z value by counting the ON time of the Z coordinate value input switch means 6
Means 19 for detecting the movement of the tip by operating the operation handle 1 and converting it into X, Y coordinate values to obtain X, Y coordinate values; and when the operation handle 1 is not operated, the operation handle 1 And a neutral holding section 5 for holding the switch panel neutral with respect to the operation panel body 2.

According to a second aspect of the present invention, in the coordinate input device according to the first aspect, the Z coordinate value input switch means 6 is provided.
When the X, Y value input switch means and the rotary switch are off, sampling pulses are counted, and when the off state continues for a predetermined number of times or more, the past coordinate value is replaced with the current coordinate value as a breakpoint. Means were provided.

According to a third aspect of the present invention, in the coordinate input device of the first aspect, a changeover switch for instructing movement, rotation, and enlargement / reduction of the created model is provided on the operation panel main body 2. According to a fourth aspect of the present invention, in the coordinate input device according to the third aspect, the X and Y values are replaced with the movement amounts when a movement input instruction is given from the changeover switch, and the X and Y values are given when a rotation input instruction is given. , Z value is replaced with a rotation angle, and a function switching processing means is provided for performing a process of replacing the Z value with an enlargement / reduction magnification when an instruction for enlargement / reduction is given.

According to the present invention having such a configuration,
In order to calculate the Z value by counting the ON time of the Z coordinate value input switch means 6 and to input the X and Y coordinate values by operating the operation handle 1, the X and Y values are obtained as in the prior art. Compared to the case where the X and Y coordinate values and the Z coordinate value are individually input, it takes less time to input, and the operability can be greatly improved.

Further, since a magnetic force generating source is provided at the tip of the shaft of the operating handle 1 and its moving distance is measured by a plurality of sensors, X and Y values can be easily obtained. Further, X and Y coordinate value input switch means are provided in a cross groove in which the operation handle 1 can be turned in the cross direction, and a rotation switch is provided in the operation handle to calculate the X and Y values from the on / off time of both switches. X and Y combined vector coordinate values can be obtained at one time.

In addition, since the wires from each fulcrum are fixed to the tip of the shaft of the operation handle and the length of movement of the wires is measured, the X and Y values can be easily obtained. In addition, when the off state continues for a predetermined sampling pulse or more, the on / off state is set as a boundary, so that the old and new coordinate values can be reliably exchanged. In addition, a spherical portion is provided in a part of the operation handle 1, and a holding portion for holding the spherical portion is formed in the operation panel body to form a fitting structure, so that the operation handle 1 can be smoothly moved in the cross direction or the 360-degree direction. Can be operated.

Further, a changeover switch for switching the functions of movement, rotation and enlargement / reduction is provided, and the Z value is replaced with the enlargement / reduction magnification, the X, Y and Z values are replaced with the rotation angle, and the X and Y values are replaced with the movement amount. Since the processing is performed, enlargement / reduction, rotation, and movement of the created model can be easily performed using the input function of the X, Y, and Z coordinate values.

[0012]

FIG. 2 is an external view showing a first embodiment of the present invention. In FIG. 2, reference numeral 1 denotes a rod-shaped operation handle, and the operation handle 1 is set upright at the center of the operation panel body 2. The operation handle 1 has a shaft portion 3 and a grip portion 4 and is operated in a 360-degree direction to obtain coordinate values X and Y.
Used to determine

A cup-shaped neutral holding portion 5 is provided between the shaft portion 3 of the operating handle 1 and the operating panel main body 2, and when the operating handle 1 is not operated by the neutral holding portion 5, the operating handle 1 is operated. The switch is held neutral with respect to the main body 2. The neutral holding section 5 is formed of an elastic rubber material, and holds the operation handle 1 neutral by its elasticity.

A Z-coordinate value input switch (Z-coordinate value input switch means) 6 is provided above the operation handle 1.
The Z value is input by the coordinate value input switch 6. When the number of the Z coordinate value input switch 6 is one, it is composed of a double-sided switch. Normally, a neutral position is maintained. When the switch is tilted to one side, a positive value of the Z coordinate value is input. When tilted in the direction, a negative value of the Z coordinate value is input. When two Z coordinate value input switches 6 are formed, one is a switch for inputting a value in the plus direction, and the other is a switch for inputting a value in the minus direction.

In a CAD device, in the case of three-dimensional CAD, a created model is rotated, its position is moved, and partial enlargement / reduction is performed. The input function of coordinate values X, Y and Z is used. Changeover switches 7, 8,
9 are provided on the operation panel main body 2. The changeover switch 7 instructs rotation of the X, Y, and Z axes, and the changeover switch 8
Indicates the movement of the X and Y values, and the changeover switch 9 indicates the enlargement and reduction of the Z value. The operation panel body 2 and the three-dimensional CAD device are connected by an interface code 10, and the position is transferred and the power is supplied.

FIG. 3 is a sectional view of the first embodiment of the present invention. In FIG. 3, the operation panel main body 2 includes a housing of an upper plate 11, a bottom plate 12, and a side plate 13. The shaft portion 3 of the operation handle 1 is inserted into the operation panel main body 2, and the tip is 360.
It can move in the degree direction. Reference numeral 14 denotes a movable range of the tip. A magnetic force generation source 15 is provided at a tip portion of the operation handle 1,
When the magnetic force generation source 15 is moved by the tilt angle of the operation handle 1 in the 360-degree direction, the magnetic force is detected by a plurality of magnetic sensors 16 to 18 (one is not shown) provided outside the movable range 14, Output travel distance. In addition,
The magnetic force generating source 15, the magnetic sensors 16 to 18, and X. The Y value calculator constitutes the means 19 for obtaining the X and Y values.

A spherical portion 20 is provided in the middle of the shaft portion 3 of the operation handle 1, and a holding portion 21 for holding the spherical portion 20 is formed on the upper plate 11 of the operation plate body 2.
Have a fitting structure for fitting to the operation panel main body 2. A neutral holding portion 5 is provided between the upper plate 11 and the shaft portion 3 of the operation handle 1 to neutralize the operation handle 1 in a switch-off neutral state.

FIG. 4 is a block diagram of the first embodiment of the present invention. In FIG. 4, reference numeral 22 denotes a coordinate input device;
It is connected to the three-dimensional CAD device 23 via the interface code 10. Reference numeral 15 denotes a magnetic source provided at the tip of the operation handle 1, and the magnetic source 15 is activated by a start switch 24. The moving distance of the magnetic force generating source 15 is detected by a plurality of magnetic sensors 16 to 18, and the detected induced current value is amplified by an amplifier circuit 25, and then the A
The analog value is converted to a digital value by the / D conversion circuit 26,
The X and Y value calculation unit of the MPU 27 converts the coordinates into X and Y coordinate values.

Reference numeral 28 denotes a sampling pulse generator.
The sampling pulse generator 28 constantly generates a sampling pulse when the start switch 24 is activated.
Send to The period and pulse width at which the sampling pulse is generated are adjusted to an optimum value by an operator in advance. From the Z coordinate value input switch 6 provided on the upper part of the operation handle 1, ON in the plus direction or the minus direction,
When the OFF signal is input to the MPU 27, the Z value calculation unit of the MPU 27 performs a logical operation on the ON / OFF signal and the sampling pulse constantly generated by the sampling pulse generation unit 28, and performs the operation during the ON state of the Z coordinate value input switch 6. The Z value is calculated by the number of the effective pulses.

The X, Y, and Z values calculated by the MPU 27 are
It is stored in the memory unit 29. Instructions for moving, rotating, and scaling the three-dimensional CAD model are input to the MPU 27 from the changeover switches 7, 8, and 9. The MPU 27 determines which of the changeover switches 7, 8, and 9 has been turned on, and performs a function changeover process. The X, Y, and Z values and instructions for movement, rotation, and enlargement / reduction are transmitted via a three-dimensional CAD via the interface code 10.
It is sent to the device 23.

FIG. 5 is a diagram showing an example of the internal configuration of the MPU 27. In FIG. 5, the MPU 27 includes a Z-value calculating unit 30 as a Z-value calculating unit, and X and Y as X and Y-value calculating units.
It has a value calculation unit 31, a new / old coordinate replacement unit 32 as a new / old coordinate replacement unit, and a function switching unit 33 as a function switching processing unit. The Z value calculation unit 30 calculates the Z value by counting the ON / OFF time input from the Z coordinate value input switch 6. The X, Y value calculation unit 31 calculates the X, Y values based on a predetermined formula from the values detected by the magnetic sensors 16 to 18 for the moving distance of the magnetic force generation source 15.

The new and old coordinate exchange unit 32 compares the past coordinate (the immediately preceding coordinate) with the current coordinate and the change to the next coordinate while the Z coordinate value input switch 6 is repeatedly turned on and off. In order to enable the above, the OFF state is also counted, and the past coordinates are replaced with the current coordinates with the case where the OFF state continues for a certain number of times or more as a break point.

The function switching processing unit 33 replaces the X and Y values with the amount of movement when there is a movement input instruction from the changeover switch 7, and when the rotation input instruction is made from the changeover switch 8, The Z value is replaced with the rotation angle, and when an input for enlargement / reduction is given from the changeover switch 9, a process for replacing the Z value with the enlargement / reduction magnification is performed. FIG. 6 shows a magnetic force source 1
FIG. 5 is a diagram illustrating an arrangement of magnetic sensors 5 and magnetic sensors 16 to 18.

In FIG. 6, the magnetic force generating source 15 provided at the distal end of the operating handle 1 has a movable range 360 shown in FIG.
It is movable in the degree direction, and the radius of the movable range 14 is indicated by r. At least three circumferentially outside the movable range 14
Magnetic sensors 16, 17, 18 are arranged. Here, each magnetic sensor 16, 1 when the magnetic force generation source 15 at the tip of the operation handle 1 moves to the tip position indicated by a circle.
The relative distances from 7, 18 are shown in FIG.

Since the magnetic force is inversely proportional to the square of the distance from Coulomb's law, if the moving radius of the magnetic force generating source 15 is r, each magnetic sensor 16, 1 at a maximum distance of 2r.
The relationship with the induced currents obtained from 7 and 18 is defined, and the actual distances L1, L2, and L3 can be determined from the measured induced current values. When the distances L1, L2, and L3 are obtained, as shown in FIG. 8, X and Y are expressed by the following equations (A) and (B).
Is obtained.

[0026]

(Equation 1)

Thus, the coordinate values X and Y are calculated. FIG. 9 is a diagram illustrating an example of the Z coordinate value input switch 6. FIG.
(A) and (B) show the case of a double tilt type with one Z-coordinate value input switch 6. When the switch is tilted to one side, the value in the positive direction of the Z coordinate is input, and when tilted to the opposite side, Enter a value in the minus direction of the Z coordinate. (C) and (D) show the case where there are two Z-coordinate value input switches 6, where one switch inputs a value in the plus direction and the other switch inputs a value in the minus direction.

In order to control the increase / decrease of the coordinate value by turning on / off the Z coordinate value input switch 6, a basic sampling pulse is generated by the sampling pulse generator 28 as shown in FIG. . When the Z coordinate value input switch 6 is turned on as shown in FIG. 10B, counting is performed by a logical operation as shown in FIG. When the Z-coordinate value input switch 6 is off, a reverse waveform is generated when the switch is on as shown in FIG. 10D, and counting is performed as shown in FIG. 10E. Then, when the OFF state continues for a predetermined number of pulses, it is determined to be a break of the ON state. When a break is determined, the past coordinate values are replaced with the current coordinate values.

FIG. 11 is a flowchart for explaining the processing for obtaining the Z value. In FIG. 11, first, step S
At 1, it is determined whether or not the Z coordinate value input switch 6 has been turned on. At this time, it is determined whether the direction is a plus direction or a minus direction. Next, when it is in the ON state in step 2, a logical operation with the sampling pulse is performed to count.

Next, in step S3, it is determined whether or not the Z coordinate value input switch 6 has been turned off. If not, the process returns to step S2 to continue counting. If it has been turned off, the process returns to step S4. move on. In step S4, when the Z coordinate value input switch 6 is in the off state, a logical operation with the sampling pulse is performed to count. Next, in step S5, it is determined whether or not the count value in the off state has exceeded a certain value (whether or not a time-out has occurred). Proceed to. If it is less than the predetermined value, it is determined that the timeout has not occurred, and the process returns to step S4 to continue counting the OFF state. Next, in step S6, since the breakpoint has been reached, the past coordinate values are replaced with the current coordinate values. Thus, the Z coordinate value can be easily input.

FIG. 12 is a flowchart for explaining the processing for obtaining the X and Y values. In FIG. 12, first, at step S12, it is determined whether or not the normal mode is set. That is, it is determined whether all of the changeover switches 7, 8, and 9 are in the off state.
Proceed to 12. In step S12, the operation of the operation handle 1 causes the magnetic force generation source 15 at the tip to move, and the magnetic sensor 1
6,17,18 detect the magnetic force, measure the induced current value,
The distances L1, L2, L3 are determined and counting is performed.

Next, at step S13, it is determined whether or not the sensor output has changed.
Return to 12. If there is no change, counting is performed in the off state in step S14, and it is determined in step S15 whether the number of samplings in the off state is equal to or greater than a certain value. If the value is less than the predetermined value, the process returns to step S13 to determine whether or not there is a change in the sensor output. If the value is equal to or more than the predetermined value, the new X and Y values are calculated in step S16.

That is, from the distances L1, L2, L3 based on the measured values of the magnetic sensors 16, 17, 18, formulas (a), (b)
The X and Y values are calculated using (b), and the past X and Y values are replaced with the current X and Y values in step S17. Thus, new X and Y values are obtained. FIG. 13 is a flowchart for explaining the processing by the changeover switches 7, 8, and 9.

In FIG. 13, first, in step S21, it is determined whether or not the changeover switches 7, 8, and 9 are turned on. When the changeover switches 7, 8, 9 are all off, it is determined whether the changeover switches 7, 8, 9 are on again, and when the changeover switches 7, 8, 9 are on, the process proceeds to step S22. In step S22, it is determined whether a rotation, movement, or enlargement / reduction instruction has been issued by the changeover switches 7, 8, and 9; if the instruction is a movement, the process proceeds to step S23;
Then, the process proceeds to step S25 when the instruction for enlargement / reduction is given.

In step S23, the X value is replaced with the amount of horizontal movement, and the Y value is replaced with the amount of vertical movement. FIG. 14A shows an example of the horizontal movement of the X value. For example, created model 3
4 moves right as indicated by the arrow. In step S24, the X, Y, and Z values are replaced with rotation angles about the X, Y, and Z axes. For example, as shown in FIG. 14B, the Y value is replaced with the rotation angle around the Y axis, and the model 35
To rotate.

In step S25, the Z value in the plus direction is replaced with an enlargement ratio, and the Z value in the minus direction is replaced with a reduction ratio. For example, as shown in FIG.
In step 6, enlargement or reduction processing is performed. As described above, in the present embodiment, the X, Y, and Z coordinate values are input by operating the operation handle 1 as compared with the conventional case where the X, Y coordinate values and the Z coordinate values are individually input and instructed. Operability can be greatly improved without inputting time.

FIG. 15 is an external view showing a second embodiment of the present invention. In FIG. 15, reference numeral 2 denotes an operation panel main body;
At the center of the operation panel body 2, a rod-shaped operation handle 1 is vertically provided. A Z-coordinate value input switch 6 as Z-coordinate value input switch means is provided on the upper portion of the operation handle 1, and is composed of one or two button switches.

The Z coordinate value input switches 6 are the same as those shown in FIG. 2. In the case of two switches, one is a button switch for inputting a value in the positive direction of the Z coordinate and the other is a button switch for inputting a value in the negative direction. In the case of one button switch, the plus and minus directions are determined by the tilt direction of the button switch, and the structure is usually in a neutral state. A cup-shaped neutral holding portion 5 made of an elastic rubber material is provided between the operation panel body 2 and the shaft portion 3 of the operation handle 1. When the operation handle 1 is not operated, the operation handle 1 is moved to the operation panel. The switch 2 is held in a neutral state with respect to the main body 2. That is, the operation handle 1 is held in the neutral state by the neutral holding section 5, and the switch-off state is maintained. The operation panel main body 2 is provided with changeover switches 7, 8, 9 for instructing movement of the model created by operating the changeover switch 8 using the input function of X, Y, Z coordinate values. The rotation of the model created by the operation is instructed, and the enlargement / reduction of the model created by the operation of the changeover switch 9 is instructed.

A cross groove 41 is formed in the operation panel main body 2.
The operation handle 1 can be tilted in the cross direction. The cross groove 41 is formed for determining the coordinate values X and Y, and the coordinate values X and Y can be determined by operating the operation handle 1 in the X axis direction or the Y direction. The operation handle 1 is provided with a rotation switch 42,
The rotation switch 42 constitutes a grip portion of the operation handle 1. The rotation switch 42 instructs input of a Y value for the X value and an X value for the Y value by rotating the operation handle 1 in conjunction with the inclination of the operation handle 1. By operating the switch 42, the combined X and Y vector coordinate values can be designated at one time.

FIG. 16 is a view showing a fitting structure of the operation handle 1 and the operation panel main body 2. In FIG. 16, a spherical portion 43 is formed in the middle of the shaft portion 3 of the operation handle 1, and a spherical receiving portion 44 for receiving the spherical portion 43 is formed on the operation panel main body 2. A cross groove 41 is formed in the operation panel body 2,
The operation handle 1 can be operated in the cross direction. That is, the operation handle 1 and the operation panel main body 2 are
Are fitted into the spherical receiving portion 44 of the operation panel body 2,
Has a fitting structure inclined in the cross direction.

As shown in FIGS. 17 and 18, a spherical portion 43 is formed in the middle of the shaft portion 3 of the operation handle 1. The spherical receiving portion 44 for receiving the spherical portion 43 is provided with the operation panel main body 2.
Is bent so that the spherical portion 43 is fitted.
The shaft 3 on the lower side of the operation handle 1 is inserted into the cross groove 41 formed in the operation panel body 2 by operating the operation handle 1 in the cross direction. A gap 45 is formed between the spherical portion 43 and the spherical receiving portion 44 as play.

FIG. 19 is a block diagram of FIG. FIG.
In 9, 28 is a sampling pulse generator,
The sampling generator 28 constantly generates a sampling pulse and sends it to the MPU 27. The period and pulse width at which the sampling pulse is generated can be adjusted to an optimum value determined in advance by the operator. Three changeover switches 7, 8, and 9 for switching functions are provided on the operation panel main body 2, and the changeover switch 8 switches a signal for instructing the movement of the model using the input function of the coordinate values X, Y, and Z. Switch 7
Sends a signal instructing rotation, and the changeover switch 9 sends a signal instructing enlargement / reduction to the MPU 27. From the Z-coordinate value input switch 6, an ON / OFF signal indicating a plus or minus Z-coordinate value is sent to the MPU 27.

When the operating handle 1 is
When tilted in the axial direction, a plus or minus on / off signal for indicating an X value from the X switches 46 and 47 is set to MP.
It is sent to U27. Also, the operation handle 1 is
, When tilted in the Y-axis direction, the Y switches 48 and 49
, A plus or minus on / off signal indicating the Y value is sent to the MPU 27. When the operating handle 1 is tilted in the X-axis direction, a plus or minus on / off signal indicating a Y value is sent to the MPU 27 by operating the rotary switch 42. When the operation handle 1 is tilted in the Y-axis direction, a plus or minus on / off signal indicating the X value by operating the rotary switch 42 is output to the MPU 2.
7

When the rotary switch 42 is rotated clockwise from the neutral state, for example, the X value in the plus direction or the Y value
When the rotation switch 42 is rotated counterclockwise, a Y value or an X value in the minus direction is specified. By simultaneously operating the rotary switch 42 and the operation handle 1, it is possible to instruct the combined X and Y vector coordinate values at a time.

The X, Y and Z values calculated by the MPU 27 are stored in the memory unit 29 and sent to the three-dimensional CAD device 23 via the interface unit 48. The input of the changeover switches 7, 8, and 9 is subjected to a function switching process in the MPU 27, and the movement amount replaced by the X and Y values, the rotation angle replaced by the X, Y, and Z values, and the enlargement replaced by the Z value The signals M, R, and Z indicating the reduction magnification are respectively input to the interface unit 50.
Is sent to the three-dimensional CAD apparatus 23 via the.

The MPU 27 includes a Z value calculating unit 30, an X and Y value calculating unit 31, a new / old coordinate replacing unit 32, as shown in FIG.
Although it has a function switching processing unit 33, the contents of the X and Y value calculation unit are different from those of the X and Y value calculation unit 31 in FIG. X, Y in FIG.
The value calculation unit 31 calculates the X and Y values based on the measurement values of the magnetic sensors 16 to 18. Here, the X switch 46,
The X and Y values are calculated based on the ON and OFF times of the 47, Y switches 48 and 49 and the rotary switch 42. The cross groove 41, the rotary switch 42, the X switches 46 and 47, and the Y switch
The switches 48 and 49 and the X and Y value calculation unit constitute a means for obtaining the X and Y values.

FIG. 20 shows the X switch 4 for the cross groove 41.
FIG. 6 is a diagram showing an arrangement of 6, 47 and Y switches 48 and 49. In FIG. 20, a cross groove 41 is formed in the operation panel body 2, and X switches 46, 47 and Y
Switches 48 and 49 are provided. That is, the cross groove 4
The X switch 46 is turned on when the operation handle 1 is tilted in the plus direction of the X axis in the cross groove 41. The operation handle 1 is tilted in the minus direction of the X axis in the cross groove 41. Switch 47 which is turned on when the operation handle 1 is tilted in the cross groove 41 by a certain angle in the plus direction of the Y-axis.
And a Y switch 4 that is turned on when the operation handle 1 is tilted at a certain angle in the minus direction of the Y axis in the cross groove 41.
9 are provided.

That is, as shown in FIG.
When the operating handle 1 is tilted in the plus direction of the X axis indicated by the arrow a, the lower shaft 3 moves as indicated by the arrow b, and the X switch 46 is turned on. Further, for example, when the operation handle 1 is tilted at a certain angle in the minus direction of the X axis indicated by the arrow c, the lower shaft 3 moves in the direction of the arrow d, and the X switch 4
7 turns on.

FIG. 22 is a diagram showing an example of the X switches 46 and 47 and the Y switches 48 and 49. FIG. 22 shows an example of a magnetic detection type switch. In FIG. 22, a permanent magnet is provided at the tip of the shaft portion 3 of the operation handle 1, or the entire shaft portion 3 is a permanent magnet. When the operating handle 1 is tilted in the cross direction, the shaft 3 is
1, and when the magnetic sensor 51 detects the magnetic force indicated by e, the X switches 46 and 47 or the Y switches 48 and 4
9 turns on.

FIG. 23 is a diagram showing another example of the X and Y switches 46 and 47 and the Y switches 48 and 49. FIG. 23 shows an example of a light detection type switch. In FIG. 23, a light shield is provided at the tip of the shaft 3 of the operation handle 1. The light shielding may be performed by the shaft portion 3 itself without providing the light shielding object. When the operation handle 1 is tilted at an angle in the cross direction, the shaft portion 3 is
1, the light emitting unit 52 emits light, and when the light beam f received by the light receiving unit 53 is blocked, the X switches 46, 47 or Y
Switches 48 and 49 are turned on. Shaft 3 is cross groove 41
Away from the lens, and when the light beam f is transmitted, the X switches 46 and 4
7 or Y switches 48 and 49 are turned off.

FIG. 24 is a diagram showing another example of the X switches 46 and 47 or the Y switches 48 and 49. FIG. 24 shows an example of a machine detection type switch. In FIG. 24, a micro switch 54 is provided on one side of the cross groove 41, and a contact piece 55 of the micro switch 54 is made to protrude into the cross groove 41. When the shaft 3 of the operating handle 1 is tilted at a certain angle in the cross direction, the shaft 3 is
1 and pressing the contact 57 in the direction indicated by the arrow g,
Micro switches 54 as X switches 46 and 47 or Y switches 48 and 49 are turned on. When the shaft portion 3 separates from the cross groove 41 and does not press the contact piece 55, the micro switch 54 is turned off.

FIG. 25 is an explanatory diagram of the rotary switch 42, in which the arc is replaced with a plane. FIG.
In (A), (B), and (C), reference numeral 56 denotes a rotating portion of the rotary switch 42, and the rotating portion 56 is provided with a contact 57. Reference numeral 58 denotes an internal fixed portion of the rotary switch 42, and the internal fixed portion 58 is provided with a contact 59.

The arrow B indicates the rotation direction of the rotary switch 42, for example, the clockwise direction. Set the rotary switch 42 to the arrow B
Rotate in the clockwise direction shown by (FIGS. 25 (A), (B),
(See FIG. 25 (C).)
The contacts 57 and 59 come into contact as shown in FIG.
2 turns on. When rotated in the clockwise direction as indicated by the arrow B, a value in the plus direction is input, and when rotated in a counterclockwise direction in the direction opposite to the arrow B, a value in the negative direction is input. .

FIG. 26 is an explanatory diagram for explaining an example of controlling the increase / decrease of the coordinate value by turning on / off each switch. FIG. 26A shows a basic sampling pulse generated by the sampling pulse generator 28, and FIG. 26B shows the on / off states of the switches 42, 46, 47, 48, and 49. In (C), the amount of AND in the ON state of each of the switches 42, 46, 47, 48, and 49 with respect to the sampling pulse is counted as the coordinate value progression. (D) counts even when the switches 42, 46, 47, 48, and 49 are off. In the off state, if the number of counted pulses does not continue more than three, it is invalid,
The addition of the coordinate value progress is maintained. In the off state, when the number of counted pulses continues for 3 or more, it is valid,
It is a break of the ON state. Therefore, (E) shows a coordinate value change area, and (F) replaces the past coordinate values with new coordinate values by the fourth new and old replacement pulses.

The processing for obtaining the Z value is the same as in FIG. The on / off state of the Z-coordinate value input switch 6 is counted, and the Z value is obtained from the on-state count value. When the off-state count value is equal to or more than a certain value, the old and new coordinate values are replaced as on-state breaks. I do. The processing for obtaining the coordinate values X and Y is the same as in FIG. Step S in FIG.
Instead of turning on the Z coordinate value input switch of 1 and turning off the Z coordinate value input switch of step S3, X switches 46 and 47,
Alternatively, ON / OFF of the Y switches 48 and 49 or the rotation switch 42 is used. The X and Y values are also counted in the ON and OFF states, the X and Y values are obtained from the ON state count values, and when the OFF state count value is a certain value or more, the old and new coordinate values are replaced as the ON state break. Do. The rotation, movement, and enlargement / reduction processes by operating the changeover switches 7, 8, and 9 are the same as those in FIG. In this embodiment, effects similar to those of the above embodiment can be obtained.

FIG. 27 is an external view showing a third embodiment of the present invention. In FIG. 27, reference numeral 2 denotes an operation panel main body;
On the operation panel main body 2, a rod-shaped operation handle 1 is vertically provided. A neutral holding portion 5 made of an elastic rubber material is provided between the shaft portion 3 of the operation handle 1 and the operation panel body 2.
The operation handle 1 is neutrally switched off with respect to the operation panel body 2 by the neutral holding portion 5.

The handle portion 4A is attached to the shaft portion 3 of the operation handle 1.
Is provided so that the operator can tilt the operation handle 1 in the 360-degree direction by gripping the grip portion 4A. A Z-coordinate value input switch 6 as Z-coordinate value input switch means is provided on the upper portion of the operation handle 1 to instruct input of the Z-coordinate value. Here, one Z-coordinate value input switch 6 is provided, and the switching of the input of the value in the plus direction or the value in the minus direction is performed by a plus / minus changeover switch 61 provided on the shaft portion 3 near the Z-coordinate value input switch 6. Do with.

Changeover switches 7, 8, and 9 are provided on the operation panel main body 2 for rotating, moving, and enlarging / reducing a model created by using a coordinate input function of X, Y, and Z values. The changeover switch 7 instructs rotation of the created model, the changeover switch 8 instructs movement of the created model,
The changeover switch 9 instructs enlargement / reduction of the created model. An interface cable 10 is pulled out from the operation panel body 2 and connected to a three-dimensional CAD device (not shown).

FIG. 28 is a block diagram of the coordinate input device 22. In FIG. 28, reference numeral 28 denotes a sampling pulse generator. The sampling pulse generator 28 constantly generates a sampling pulse and sends it to the MPU 27. From the Z coordinate value input switch 6 provided on the upper part of the operation handle 1, an ON / OFF signal indicating the Z coordinate value is input to the MPU 27. From the plus / minus changeover switch 61, a signal indicating the plus direction of the Z coordinate value or a signal indicating the minus direction of the Z coordinate value is input.

The X, Y coordinate input section 62 comprises a reader for reading a distance measuring disk, and
When tilted in the degree direction, the distance of the wire from each fulcrum due to the movement of the shaft tip of the shaft portion 3 is read and input to the MPU 23. Instructions for rotating, moving, and scaling the created model are input to the MPU 27 from the changeover switches 7, 8, and 9.

The Z value calculator in the MPU 27 performs a logical operation on the sampling pulse and calculates the Z value by the number of effective pulses during the ON state of the Z coordinate value input switch 6. Also,
The X, Y value calculation unit in the MPU 27 is an X, Y coordinate input unit 6
The X and Y values are calculated based on a predetermined formula from the length of the wire feeding or rewinding input from Step 2. MPU
The Z, X, and Y values calculated in 27 are stored in the memory unit 29 and sent to the three-dimensional CAD device 23 via the interface code 10.

The MPU 27 is provided with a changeover switch 7,
The input of 8, 9 is determined, and signals indicating the moving amount obtained by replacing the X and Y values, the rotation angle obtained by replacing the X, Y and Z values, and the enlargement / reduction ratio obtained by replacing the Z value are transmitted via the interface code 10. To the three-dimensional CAD device 23. Also, MP
U27 also counts the OFF state of the Z coordinate value input switch 6 or the X, Y coordinate input unit 62, and replaces the past coordinate values with the current coordinate values using the case where the OFF state continues for a certain number of times or more as a breakpoint. . MPU 27 is shown in FIG.
And a new / old coordinate replacing unit 32 and a function switching processing unit 33 similar to those described above. However, the expression used for calculating the X and Y values in the X and Y value calculation unit of the MPU 27 in FIG.
It may be different from the formula used to calculate the value.

FIG. 29 is a view showing a fitting structure of the operation handle 1 and a wire. In FIG. 29, the operation handle 1
A spherical part 20 is formed in the middle of the shaft part 3 of the
Is formed on the operation panel main body 2. The spherical portion 20 of the operation handle 1 is fitted to the holding portion 21 of the operation panel body 2. By the fitting structure, the operation handle 1 is tilted in a 360-degree direction with respect to the operation panel body 2.

Wires 64 from three fulcrums A, B, and C are fixed to the shaft end 63 of the shaft portion 3 of the operation handle 1. The wires 64 pass through the fulcrums A, B, and C, and the shaft ends 63. The pull tension always acts on the opposite side. The total length of the wire 64 is more than twice the radius of the movable range of the shaft end 63. FIG. 30 is a diagram showing the relationship between the movable range of the shaft tip 63 and the wire 64.

In FIG. 30, reference numeral 63 denotes a shaft tip of the shaft portion 3 of the operation handle 1. The shaft tip 63 moves in a 360-degree direction, and its movable range 14 becomes an arc. Shaft tip 63
, The fulcrum A, the fulcrum B and the fulcrum C
Is provided. FIG. 31 shows X, Y by the movement of the shaft tip 63.
FIG. 9 is an explanatory diagram illustrating calculation of a value. In FIG. 31, the center of the movable range 14 is defined as a coordinate value (0, 0), and the shaft tip 6
X, Y when 3 moves to a point indicated by coordinate values X, Y
Calculate the value.

Assuming that the radius of the movable range 14 is r, the fulcrum A
Is (0, -r), and the fulcrum B is (r,
0), the coordinate value of the fulcrum C is indicated by (0, r). Fulcrum A
From the fulcrum B to the shaft tip 63
L2 from the fulcrum C to the shaft end 63
Is obtained by the following equations (1) to (3). (X-0) ² + (Y − (− r)) ² = L1 ² (1) (Xr) ² + (Y-0) ² = L2 ² (2) (X−0) ² + (Yr) ² = L3 ² (3) Equation (c) is obtained from (1)-(3).

[0067]

(Equation 2)

The equation (d) is obtained from (2)-(3).

[0069]

(Equation 3)

In this manner, the X and Y values are obtained based on the distances L1, L2 and L3 using the equations (c) and (d). FIG.
FIGS. 2A and 2B are explanatory diagrams illustrating the relationship between the movable range and the radius of the fulcrum. In FIGS. 32A and 32B, it is assumed that fulcrums A, B, and C where the wire 64 is fed or unwound are formed by a circle D having a radius Rd. When the tip 63 of the shaft is farthest from the center of the circle D, and the radius of the circle E indicating the movable range 14 is r, the distance is 2r + Rd. When the length of the wire 64 that guarantees the distance 2r + Rd, that is, the circumference of the circle D is adjusted to the length of the wire 64, the radius Rd is obtained from the following equation.

2πRd = 2r + Rd Rd ≒ 0.4r FIG. 33 is an explanatory diagram of reading the length of the wire 64.
In FIG. 33, the shaft end 63 of the shaft portion 3 of the operation handle 1 is shown.
Are fixed to wires 64 from fulcrums A, B, and C. The total length of wire 64 is
More than twice the radius r.

The fulcrums A, B and C are provided with distance measuring disks 65.
Are provided, and the distance measurement disk 65 has a circumference corresponding to the wire length. A code corresponding to a bit is engraved on the distance measuring disk 65, and the reader 6 as an X, Y coordinate input unit is engraved.
Read optically or magnetically at 2. For example, shaft tip 6
If the radius r of the circle E indicating the movable range 14 of 3 is 30 mm, the radius of the distance measuring disk 65 indicated by the circle D is about 12 mm. Wire 64 in this case
Is 60 mm, the distance measuring disk 65 is provided with a 6-bit code, and can be distinguished from 0 to 63. A bit-corresponding code as shown in FIG. 34 is engraved on the distance measuring disk 65. When the distance measurement disk 64 is replaced in a plane, a 6-bit slit is cut and the length of the wire 64 is read as shown in FIG. In this case, a continuous slit may be actually used as shown in FIG.

FIGS. 36 (A) and (B) are other views for reading the length of the wire 64. FIG. In FIG. 36A, a large mark F and a small mark G are formed on the distance measurement disk 65. FIG. 36B shows a plan view of the distance measurement disk 65, in which a large mark F and a small mark G are provided at a predetermined interval. Arrow I
Indicates the forward rotation direction of the distance measuring disk 65, and the arrow H
Indicates the reverse rotation direction of the distance measurement disk 65.

The mark F and the mark G have different sizes,
The order of the generated signals differs depending on the rotation direction of the distance measurement disk 65. Once the rotation direction is determined, the number of rotations of the distance measurement disk 65 can be determined by counting the number of repetitions, and the number of rotations determines the moving distance of the wire 64. When the distance measurement disk 65 rotates in the direction indicated by the arrow H, as shown in FIG. 37A, a pulse having a high pulse height is followed by a pulse having a low pulse height, or as shown in FIG. As shown in B), a pulse having a small pulse width is generated after a pulse having a large pulse width. When the distance measurement disk 65 rotates in the direction indicated by the arrow I, a pulse having a high pulse height is generated following a pulse having a low pulse height, as shown in FIG. As shown in FIG. 37 (D), a pulse having a large pulse width is generated following a pulse having a small pulse width. Thus, the lengths L1, L2, L3 of the wires 64
, The coordinate values X and Y can be calculated by the above-described equations (c) and (d).

In this embodiment, the processing for obtaining the Z value may be performed as shown in FIG. The on state of the Z coordinate value input switch 6 is counted to calculate the Z value.
The OFF state is counted, and when the count value is equal to or more than a certain value, the new and old coordinate values are exchanged as a break of the ON state. The processing for obtaining the X and Y values is the same as the processing shown in FIG. 12, except that the values of the magnetic sensors are read and the distances L1, L2, and L3 are measured in step S12 in FIG. Calculates the distances L1, L2, L3 by measuring the length of the wire 64 with the distance measuring disk 65. In step S16 of FIG.
The X and Y values are calculated according to (b). In the present embodiment, the X and Y values are calculated according to equations (c) and (d). Further, the function switching process by operating the changeover switches 7, 8, 9 is the same as the process shown in FIG.

Also in the present embodiment, the X, Y, and Z values can be instructed using the operating handle 1 as compared with the conventional case where the X and Y coordinate values are individually input. Operability can be greatly improved.

[0077]

As described above, according to the present invention, the ON value of the Z coordinate value input switch means is counted to calculate the Z value, and the input of the X and Y coordinate values is performed by operating the operation handle. Since the X and Y values are obtained by the instruction, the input time does not take much compared to the case where the X and Y coordinate values and the Z coordinate value are individually input as in the past, and the operability is greatly improved. Can be done.

Further, a magnetic force generating source is provided at the tip of the shaft of the operating handle, and its moving distance is measured by a plurality of sensors.
X and Y values can be easily obtained. Further, X and Y coordinate value input switch means are provided in a cross groove in which the operation handle is turned in the cross direction, and a rotation switch is provided in the operation handle to calculate the X and Y values from the on / off time of both switches. X and Y combined vector coordinate values can be obtained at one time.

Further, since the wires from each fulcrum are fixed to the tip of the shaft of the operation handle and the length of movement of the wires is measured, the X and Y values can be easily obtained in the same manner. Also, when the off continues for more than a certain sampling pulse,
Since the ON state is set as a delimiter, the new and old coordinate values can be reliably exchanged. In addition, since a spherical portion is provided in a part of the operation handle and a holding portion for holding the spherical portion is formed in the operation panel body to form a fitting structure, the operation handle is smoothly operated in the cross direction or the 360-degree direction. be able to.

Further, a changeover switch for switching the functions of movement, rotation, and enlargement / reduction is provided, and the Z value is replaced with the enlargement / reduction magnification, the X, Y, Z values are replaced with the rotation angle, and the X, Y values are replaced with the movement amount. In order to perform the processing, the created model can be enlarged, reduced, rotated, and moved using the input function of the X, Y, and Z coordinate values.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is an external view showing a first embodiment of the present invention.

FIG. 3 is a cross-sectional view showing the first embodiment of the present invention.

FIG. 4 is a block diagram showing a first embodiment of the present invention.

FIG. 5 is a diagram showing a configuration example of an MPU.

FIG. 6 is a diagram showing an arrangement of a magnetic force generation source and a sensor.

FIG. 7 is a diagram showing a tip position and a distance from each sensor.

FIG. 8 is an explanatory diagram of calculation of X and Y values based on distances L1, L2 and L3.

FIG. 9 is a diagram showing a Z coordinate value input switch;

FIG. 10 is an explanatory diagram for explaining an increase / decrease of a coordinate value by turning on / off a Z coordinate value input switch;

FIG. 11 is a flowchart illustrating a process of obtaining a Z value.

FIG. 12 is a flowchart illustrating a process for obtaining X and Y values.

FIG. 13 is a flowchart illustrating a function switching process by operating a changeover switch.

FIG. 14 is an explanatory diagram illustrating movement, rotation, and scaling of a created model.

FIG. 15 is an external view showing a second embodiment of the present invention.

FIG. 16 is a diagram showing a fitting structure between an operation handle and an operation panel body (part 1);

FIG. 17 is a diagram showing a fitting structure of the operation handle and the operation panel body (part 2).

FIG. 18 is a diagram showing a fitting structure between the operation handle and the operation panel body (part 3).

FIG. 19 is a block diagram of a second embodiment of the present invention.

FIG. 20 is a diagram showing a cross groove, an X switch, and a Y switch.

FIG. 21 is a diagram showing ON / OFF of an X switch by operating an operation handle.

FIG. 22 is a diagram showing an example of a magnetic detection type switch.

FIG. 23 illustrates an example of a light detection type switch.

FIG. 24 is a diagram showing an example of a mechanical detection type switch.

FIG. 25 is an explanatory diagram for explaining ON / OFF of a rotary switch.

FIG. 26 is an explanatory diagram illustrating a change in coordinate values due to turning on and off of each switch.

FIG. 27 is an external view showing a third embodiment of the present invention.

FIG. 28 is a block diagram showing a third embodiment of the present invention.

FIG. 29 is a diagram showing a fitting structure and an arrangement of wires.

FIG. 30 is a diagram showing a relationship between a movable range of a shaft tip and a wire.

FIG. 31 is an explanatory diagram of calculation of X, Y and coordinate values based on the distance of a wire.

FIG. 32 is an explanatory view illustrating the relationship among the length of the wire, the radius of the movable range, and the radius of the disk.

FIG. 33 is an explanatory diagram of reading a wire length.

FIG. 34 is a view showing a code corresponding to a bit provided on a disk.

FIG. 35 is a diagram showing a disk provided with slits in 6 bits.

FIG. 36 is another explanatory view for reading the length of the wire.

FIG. 37 is a diagram showing forward / reverse rotation pulses by different marks.

FIG. 38 shows a conventional example.

FIG. 39 is a diagram illustrating an example of a screen of a display unit.

[Explanation of symbols]

1: Operation handle 2: Operation panel main body 3: Shaft 4, 4A: Nipple 5: Neutral holding part 6: Z coordinate value input switch (Z coordinate value input switch means) 7, 8, 9: Changeover switch 10: Interface Code 11: Top plate 12: Bottom plate 13: Side plate 14: Movable range 15: Magnetic force generation source 16-18: Magnetic sensor 19: Means for obtaining X and Y values 20: Spherical portion 21: Holding portion 22: Coordinate input device 23 : Three-dimensional CAD device 24: start switch 25: amplification circuit 26: A / D conversion circuit 27: MPU 28: sampling pulse generation unit 29: memory unit 30: Z value calculation unit (Z value calculation means) 31: X, Y Value calculation unit (X and Y value calculation means) 32: New and old coordinate replacement unit (New and old coordinate replacement means) 33: Function switching processing unit (Function switching processing means) 34 to 36: Model 41: Cross groove 42: Rotation Switch 43: spherical part 44: spherical receiving part 45: gap 46, 47: X switch 48, 49: Y switch 50: interface part 51: magnetic sensor 52: light emitting part 53: light receiving part 54: micro switch 55: contact piece 56 : Rotating parts 57, 59: Contact 58: Internal fixed part 61: Plus / minus changeover switch 62: X, Y coordinate input part (reader) 63: Shaft tip 64: Wire 65: Distance measuring disk

Claims (4)

[Claims] 1. An operation handle vertically provided at a center portion of an operation panel main body, Z coordinate value input switch means provided on an upper portion of the operation handle for inputting a plus or minus Z coordinate value, Z value calculating means for calculating the Z value by counting the ON time of the coordinate value input switch means, and detecting the movement of the tip by operating the operation handle, converting the tip to X, Y coordinate values, and converting the X and Y coordinate values. A coordinate input device comprising: a means for obtaining a value; and a neutral holding unit for holding the operation handle in a neutral state in which the operation handle is switched off with respect to the operation panel body when the operation handle is not operated. 2. The coordinate input device according to claim 1, wherein when the Z coordinate value input switch means, the X and Y value input switch means and the rotary switch are in an off state, a sampling pulse is counted and a predetermined number of samplings or more is performed. A coordinate input device comprising a new and old coordinate replacing means for replacing a past coordinate value with a current coordinate value as a breakpoint when turning off continues. 3. The coordinate input device according to claim 1, wherein a changeover switch for instructing movement, rotation, and enlargement / reduction of the created model is provided on the operation panel main body. 4. The coordinate input device according to claim 3, wherein the X and Y values are replaced by a movement amount when a change input instruction is issued from said changeover switch, and X, Y and Z are set when a rotation input instruction is issued. A coordinate input device comprising function switching processing means for performing a process of replacing a value with a rotation angle and replacing a Z value with a scaling factor when a scaling input command is issued.