JPS6079423A - Pointing device - Google Patents

Abstract

PURPOSE:To improve operativity by obtaining signals for the moving direction and moving speed of a cursor according to the position and extent or pressure of depression to a freely rockable depression plate. CONSTITUTION:The push button 1-2 of a pointing device indicates the display contents on a display device. A leaf spring 3 holds the depression plate 2 at a stationary position and contacts a conductive film 6-5 at the circumference of the center hole of a printed wiring board 6 to feed electricity to conductive rubber elements 4-1-4-4 during depression. Those conductive rubber elements 4-1-4-4 vary in resistance with the extent of depression and are inserted into holes 5-1-5-4 of a positioning plate 5. Further, feed positions 6-1-6-5 extending from a circuit part 6-6 to the conductive rubber elements 4-1-4-4 and leaf spring 3 are arranged on the printed wiring board 6. Consequently, the signal indicating the moving speed of the cursor is obtained at a depression position on the depression plate 2 and the signal indicating the moving speed of the cursor is also obtained according to the extent or pressure of depression.

Description

Detailed Description of the Invention (Technical Field) The present invention relates to a so-called pointing device that moves a cursor to specify a data input position in a display device such as a C1t'll' display (Background Art) Conventional display device In order to move the position of the sol, there were methods such as using push buttons installed on the upper and lower left stones separately, trackballs, joysticks, etc., but the push button method allows you to move it to the desired position. In general, two button operations are required in order to
With a trackball, you have to move your finger several times, and with a joystick, you have to wrap your finger around the rod. - Due to the shape of the corpse, the operability is poor; KK
'-1) A ('pH; ix, keto 7, yes.) The so-called mouse, which has come into use recently, also requires a large area to operate, and also has a structure: It has become expensive.

□ In addition, as a solution to the above-mentioned problem, there is also a known device that obtains four types of □ signals (left, right, top, and bottom) depending on the suppressed position of the push button in order to remotely control the mirror of a car. , this 1+
J, J-11,, Mll&Ro/+7 Pilgrimage W1.17. −
-111-+-li1. Since ray+=ai degree is constant, if you set it to high speed, it will be difficult to control the position,
Furthermore, if the speed is set to a low speed, the time required to move the cursor becomes long.

(Problems to be solved by the invention) The present invention provides a pointing device that is easy to operate and is inexpensive, eliminating these drawbacks. A push-down plate is swingably supported by a support, and a plurality of detection elements are arranged around the support to detect the push-down position of the push-down board, the amount of push-down, or the push-down pressure of the push-down board. A pointing deno (located on the chair) outputs a signal indicating the direction of movement of the cursor depending on the pressed position, and outputs a signal indicating the moving speed of the cursor depending on the amount or pressure of the press plate.

(Structure and operation of the invention) Figure 1 shows one embodiment of the present invention, and is a schematic diagram of the structure and Figure 2 (
a) is an explanatory diagram of the cross section.

1 in FIG. 1 is an upper cover, and 1-2 is a push button, which is used for commands regarding the content displayed on the display. 1-3 is an interface wire, and 2 is a push-down plate made of flexible insulating material.

Reference numeral 3 denotes a leaf spring, which returns the push-down plate to its normal position when not pressed down, contacts the conductive thin film around the center hole of the printed wiring board 6, and supplies electricity to the conductive rubber 4-1 to 4-4 when pressed down. I do. 4-1 to 4-4 are conductive and rubber, and the resistance value changes depending on the amount of pressing. Reference numeral 5 indicates a positioning plate made of a leaf spring and conductive rubber, which is made of an insulating material. Conductive rubber 4-1~
4-4 is inserted into the holes 5-1 to 5-4 of the positioning plate 5, and the leaf spring 3 is inserted into the center hole 5-13. Also 5
-5~(5-8) are leaf spring rotation stops, 5-9~(
5] 2) is a limiter of the push plate. Reference numeral 6 denotes a printed wiring board, on which circuit i1 ((i) is wired from i to positions 6-1 to (6-4) facing the conductive rubber and to a power supply position 6-5 to the leaf spring. 7 is a bottom plate, and the central protrusion 7-1 passes through the central hole of the printed wiring board 6, the positioning plate 5, and the leaf spring 3 to be assembled, as shown in Figure 2(a). )do.

Figure-2(+)l is another example of the pusher part, and the pusher plate 2-2
is made of non-flexible insulating board. There is a hole 2- in the center of the push-down plate, which is loosely fitted into a post 7-2 provided at the upper end of the projection 7-1.

As is clear from FIG. 2(b), the force of the leaf spring 3 is received by the post 7-2, and at the same time, when the post 7-2 is pressed down, it can be pushed down freely around this post.

FIG. 3 is a circuit diagram of this embodiment, and 3-1 to 3-4 C show the contacts between the leaf spring and the conductive rubber, which are closed by pressing the pressing plate. 4-1 and 4-2 are conductive rubber whose resistance value changes depending on the amount of pressing. 9-1 to 9-4 are impedance conversion amplifiers, which may be omitted depending on the case. 1
0-1 to 10-4 are wraparound prevention diodes, 11-
1.11-2 is a control voltage generator, an example of which is shown in Figure 4. 12-1.12-2 is a voltage controlled oscillator that sends out pulses approximately proportional to the input voltage to 16-1.16-2. 13-1 to 13-4 are level converters, and 3-1 to 3-
4's +mT+yy'h2-J-1c↓1i) (a tongue 1 1; ke qfks, 5 tozo s1'+-1 to 15-4 is sent at a logic level voltage.

As is clear from Figure 1, 3-1,: 3-2 and 3-3
．． Since 3-4 are not closed at the same time, it is sufficient to have one set of the control m pressure generator and the control oscillator 1@', IEl: in the vertical direction and in the left and right directions.

Figure 4 shows a control tb pressure generator that sends out cursor movement pulses at a desired speed in response to the pushing elbow and generates a control voltage for pulse rate control. 1- shows an example of control for three sections of the approximately constant speed low speed region 27, the first speed change region 28, and the second speed change region 21], and therefore 18-j to 18-3.
．． Three sets of resistors and diodes, 19-1 to 19-3 and 20-1 to 20-3, are required. If you want to increase the number of sections, you can increase these, and also "8-1 to J8-3.
By appropriately setting the values of 20-1 to 20-3 and the resistor 21, (push amount - sending pulse rate) can be freely set. The period from the start of pressing until the leaf spring comes into contact with the conductive rubber is a dead zone, and this period can also be set to a desired value with a gap of (plate spring - conductive rubber). The inverter 24 is inserted because the previous stage is a one voltage inversion type, and is unnecessary if the next stage voltage controlled oscillator is a negative polarity operation type. In addition, the voltage controlled oscillator
The format is one that generates one pulse at the same time as the voltage is applied, as shown in Figure 5.
If the pulse rate is set to a somewhat low value corresponding to 27, one pulse can be sent, that is, one unit of movement defined on the display can be moved for each press.

Also, since 3-1 or 3-2 and 3-3 or 3-4 are independent from each other, the cursor can be moved diagonally in the upper left direction by pressing, for example, the middle point between the top and left of the push plate. can.

In this embodiment, the case where conductive rubber is used as the variable resistor has been described in detail, but instead of the conductive rubber, a linear variable resistor, a resistance wire strain gauge, etc. can be used for the same purpose.

In addition to converting the swinging change of the push-down plate 2 into a change in resistance value, it is also possible to convert it into a change in capacitance, a change in magnetic force, a change in the amount of reflected light, or the like. However, if such a method is used, the dead zone as in the above embodiment cannot be obtained, so
It is necessary to set the area below the threshold as a dead zone in order to make a profit at a threshold value.

Regarding the command sending circuit, we have described an example in which the pulse frequency is changed, but it is also possible to send out the voltage of the control voltage generating circuit in this example as it is due to the interface with the connected device. easily guessed.

Moreover, it is also possible to incorporate it into other devices rather than in this independent form.

(Effects of the Invention) As described in detail above, according to the present invention, the moving direction of the cursor on the display can be specified by the pressed position, the moving speed changes depending on the pressed amount, and l-step movement is also possible. It has very good performance and can be operated in narrow spaces.

Further, by adopting the configuration as described in detail in this embodiment, a low-cost pointing device can be realized.

“oT::Twotlt'lnee7u!ItifOMLtF
HNIil, FIG. 2(a) is a sectional view of the above embodiment, FIG. 2(1)l is a sectional view of another embodiment, and FIG. 3 shows the moving direction and speed in combination with the above embodiment. A block diagram of the circuit that obtains the signal, Figure 4 is a circuit diagram showing the control voltage generator, and Figure 5 shows the amount of push of the push plate and the control voltage input to the control voltage generator or output from the control voltage generator. FIG. 3 is a characteristic diagram showing a clear image of pulse frequency.

1...Top cover, 1-2...Push button, l'-3
...Interface line, 2...Press plate, 3...
Leaf spring, 4-1 to 4-4... Conductive rubber, 5... Positioning plate, 5-1 to 5-4... Hole, 5-5 to 5-8...
・Rotating stop, 5-9 to 5-12...Limiter, 6・
...Printed wiring board, 7...Bottom plate, 7-1...Central protrusion, 7-2...Post, 9-1 to 9-4...Amplifier, lo-1 to 10-4...・Wraparound prevention diode, 11-1 to 11-2...Control voltage generator, 12-
1.12-2...Voltage controlled oscillator, 13-1 to 13-
4... Level converter, 14... Input terminal, 15-1
~15-4.16-1.16-2... Output terminal, 17
...Input terminal, 18-1 to 18-3, addition 1-2fl
-3, 21... Resistor, 19-1 to 19-3... Diode, 23-... Operational amplifier, 24... Inverter.

Patent - Applicant Oki Electric Industry Co., Ltd. patent application agent Patent Attorney Megumi Yamamoto - Figure 1 Figure 2(b) Figure 2(Q) Figure 3 Figure 4 m-5

Claims (1)

[Claims] In a pointing device for moving a cursor position of a display device, a push-down plate is swingably supported by a support provided in the center, a plurality of push-down plates are arranged around the support, and a push-down position of the push-down board is determined. It is equipped with a detection element that detects the amount of depression or pressure, and outputs a signal indicating the direction of cursor movement based on the depression position of the depression plate, and outputs a signal indicating the moving speed of the cursor based on the depression amount or pressure of the depression plate. A pointing device characterized by: