JPS6310316Y2 - - Google Patents

Description

[Detailed description of the invention] This invention involves passing an operating rod through a through hole having a required figure on a scale plate, and outputting the change values of two variable resistors installed at right angles that interlock with the operating rod. The present invention also relates to a drawing joystick device in which an operating rod and a variable resistor are integrally movable up and down.

Variable resistors arranged at right angles to each other are interlocked with an operating rod whose upper part can be moved in the X and Y directions on rectangular coordinates using the lower end of one rod as a fulcrum, and as the operating rod moves. Joysticks that change resistance values or their associated electrical outputs are used in a variety of fields, including telecommunications and electronic computers. When the operating rod is moved in the direction of the X and Y rectangular coordinates using the lower end of the operating rod as a fulcrum, the variable resistor placed at the X and Y rectangular coordinates will change the resistance value in the X direction or Y direction according to the movement of the operating rod. changes. By processing changes in resistance values in the X and Y directions or electrical outputs related thereto, a figure can be obtained from coordinates on the XY plane.

Conventional joysticks let you freely draw shapes from coordinate points or their changes, but it is difficult to draw a desired shape over and over again, or to enlarge or contract the same shape. Since there is nothing to limit the range of operation, it is difficult to obtain output that allows the user to draw a fixed figure depending on conditions such as the location and the person operating the device.

In order to eliminate the drawbacks of the conventional joystick, the present invention is a joystick in which a removable scale plate with a through hole of a desired shape is attached through the joystick's operating rod, and the operating rod and variable resistor can be moved up and down as one unit. The purpose is to repeat the desired figure and obtain an output that can be enlarged or reduced.

In the present invention, as shown in an embodiment in FIG. 1, a sliding lever 2 having a sufficiently long elongated hole 3 is attached to a movable piece of a variable resistor 1 in the X direction at right angles to the sliding direction of the variable resistor 1. Similarly, a sliding lever 5 having a long hole 6 is attached to the variable resistor 4 in the Y direction. These two variable resistors 1 and 4 are mounted on supports 1a and 4a above the fulcrum block 7, which is the lower fulcrum of the operating rod 8 of the joystick. , support 4a
The variable resistors 4 in the Y direction are attached so as to be perpendicular to each other. At this time, since the sliding lever 2 of the variable resistor 1 and the sliding lever 5 of the variable resistor 4 are at right angles, the long holes 3 and 6 provided in the sliding levers 2 and 5 are also arranged at right angles. and a square hole is created at the intersection. On the other hand, the operating rod 8 of the joystick has a diameter approximately equal to the width of the elongated holes 3, 6 of the sliding levers 2, 5 of the variable resistors 1, 4, and is passed through a square hole made at the intersection of the elongated holes 3, 6 to the lower part. A spherical joint 9 provided at the fulcrum of the block 7 is fitted into a recess 9' of the fulcrum block 7 to create a joint that rotates freely but does not come out. When the operating rod 8 is placed perpendicular to the fulcrum block 7, the sliding levers 2 and 5 are approximately at the center of the variable resistors 1 and 4, respectively, and the long holes 3 and 6 are approximately at the center of the long diameter of the hole. The relationship between the variable resistors 1 and 4 and the supports 1a and 4a is required as follows. In order to move the joystick device constructed in this manner in the vertical direction, a guide rail 13 is erected from the board, and a convex portion 14 that fits into the guide rail 13 is provided on the fulcrum block 7, so that the fulcrum block, operating rod, and variable You can move the resistor up or down.

On the other hand, in the present invention, a scale plate holder 12 with an operating rod passed through a frame is provided on the surface of the scale plate holder 12 in order to enable the joystick to repeatedly draw figures with a limited range of motion. The operating rod 8 is therefore operated within the scale plate holder 12. Further, on this scale plate holder 12, for example, a triangular scale plate 11A with a through-hole pattern as shown in FIG. 1, or a circular scale plate 1 as shown in FIG.
A scale plate having a required figure as a through hole, such as a scale plate 11C in the shape of a map such as 1B or 1C, is placed on the scale plate holder 12 with the operating rod 8 passed through the hole. When the operating rod 8 is moved along the periphery of the through hole of the scale plate, the X
The sliding levers of the variable resistor 1 in the direction and the variable resistor 4 in the Y direction move to change their respective resistance values, which appears as a change in the output.

Furthermore, when the joystick is moved up and down along the guide rail 13, the fulcrum block 7, variable resistors 1 and 4, and operating rod 8 all move up and down, but the scale plate holder 12 does not move, so as shown in FIG. When the joystick mechanism is raised, the operating range L of the operating rod 8 is large, as shown in Figure 2a, even with the same scale plate 12, and when it is lowered, the operating range L of the operating rod 8 is larger, as shown in Figure 2b. becomes smaller. Therefore, the variable range of the variable resistor changes depending on the size of the movement range, so the output changes at the same time.

Note that the output from the variable resistor can be extracted and post-processed as a change in resistance value with X and Y axes as the axes, or as shown in Figure 3 a, the X DC voltage V _X with respect to one side grounded, The change value of the Y DC voltage V _Y , or _the change value of the X DC voltage ± _V The digital values X ₀ , X ₁ ...X _o-1 ,
Alternatively, processing can be performed by changing to n bits of Y ₀ , Y ₁ . . . Y _o-1 .

As described above, according to the present invention, the disadvantage of conventional methods that only allow unrestricted operations and movements is eliminated, and the operations and movements are limited within the frame of a desired figure, and the same figure can always be used. The same output can be obtained, and the desired figure can be obtained by simply replacing the scale plate. In addition, by moving the joystick mechanism up and down using the same scale plate, the same effect as if the figure were changed in size can be obtained.

[Brief explanation of the drawing]

FIG. 1 is an explanatory perspective view of an embodiment of the joystick device for drawing of the present invention, and FIG. 2 is a sectional view of the movable range of the operating rod when the joystick mechanism of the present invention is moved up and down, where a is an upward movement; b is a side view showing the lowered situation, Figure 3 is a circuit diagram showing the relationship between variable resistor and output, a is grounded on one side, b is DC output with center point grounded, and c is digital output. It is. The symbols used in the drawings indicate the following. 1, 4... Variable resistor, 2, 5... Sliding lever, 3, 6... Elongated hole, 1a, 4a... Support, 7
...Fullin block, 8...Operation rod, 9...Spherical joint, 11A, 11B, 11C...Scale plate, 12...Scale plate holder, 13...Guide rail, 14...Protrusion, 15...Analog -Digital converter.

Claims (1)

[Scope of utility model registration request] An operating rod that can rotate around a fixed fulcrum,
A joystick having a structure in which an extended portion of a slider fits into and slides into contact with the operating rod, and includes two variable resistors that change the resistance value as the upper end of the operating rod moves. , a frame-shaped scale plate holder provided on a horizontal plane that crosses the middle of the operating rod; and a scale plate having a through hole of a desired shape through which the operating rod is inserted and attached to the scale plate holder. and a guide rail for slidingly guiding the fulcrum block in a direction perpendicular to the scale plate holder surface, and the joystick can be moved up and down.