JPS6072019A - Manual pressing force detector - Google Patents

Abstract

PURPOSE:To reflect clearly a force of one's intention when inputting to a computer by detecting a degree of strength of a pressing force by a degree of two strong and weak stages. CONSTITUTION:A pen tip 8 of a holder 7 is pressed in an optional direction by a pen type detector of manual pressing force. As a result, a center rod 1 is displaced in accordance with a pressing force, and detecting bodies 2, 3 formed by a magnetic proximity switch, etc. approach, and detect to which direction it has been pressed. After this pressing force has been detected, when the pressing force is further strengthened in the same direction, a strong pressing force can be recognized by other high threshold level. For instance, a switch of the lower stage becomes on by a weak force, and a switch of the upper stage becomes on by a strong pressing force. In this regard, it is detected by a switch 4 that the pen has been pressed in the direction of the paper surface, and also a rotational quantity of a coordinate system is detected by a variable resistor 5.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detector that detects the strength and direction of human pressure.

Conventionally, this type of device has four switches arranged concentrically around the central axis, such as a joystick used in game machines, etc. (eight direction detection is performed by a combination of on and off switches) There are devices that detect which of the eight directions pressure is being applied.

In this case, the strength of the manual pressure is ignored, and only the on/off state is detected.

The present invention relates to a device for detecting the strength of pressing force, or at least two levels of strong and weak pressing force, in the same direction. Having such a function more clearly reflects the human willpower when inputting data into a computer, making the relationship between humans and machines even smoother.

Specifically, it is possible to control the speed of movement of the current position display (cursor) on the display device that is common to computers, and when a strong force is applied, it is possible to change the movement trajectory (one of eight straight lines),
When using a weak force, it can also be used simply for movement, expanding the design capabilities of computers.

To explain the present invention according to the drawings, FIGS. 1 and 3 show a pen-shaped detector, in which the holder 7 is held in hand and the pen tip 8 is
Apply pressure in any direction. Since the center rod 1 is displaced according to the applied pressure, the detection bodies 2 and 3 can detect in which direction the pressure is applied.

In Fig. 1, the detection objects 2 and 3 are switches such as magnetic proximity switches, conductive rubber, photodetectors, and metal contacts, and in Fig. 3, they are analog detection objects such as capacitance, light amount detection, magnetic detection, etc. .

The first feature of the present invention is that after detecting the above-mentioned pressure force, if the pressure force is further increased in the same direction, a strong pressure force can be recognized by other high threshold values. The switch turns on, and if there is strong pressure, the upper switch turns on. In the case of Figure 3, it is not possible to directly distinguish between weak force and slightly strong force, but as the applied force increases, the magnitude of the electrical signal in that direction changes, so the discrimination circuit has two levels of thresholds. If this is provided, the strength of the pressurizing force can be recognized in the same way.

In FIGS. 1 and 2, 4 is a switch that detects pressurization in the direction of the paper (pendow/state). Further, numeral 5 detects the amount of rotation of the coordinate system. Rotation of the coordinate system means that all eight directions (or four directions) can be rotated by any angle. In Fig. 5, the pointer 6 is pointing in the right horizontal direction (X
However, when the case 7 is rotated in FIGS. 1 and 2, the pointer 6 rotates slightly, and this direction can be regarded as the X-axis. In this case, the amount of rotation can be obtained by fixing the outside of the variable resistor 5 to the case 7, and fixing it to the movable center rod 5 to the non-rotating center shaft 1 of the detector, and then taking it out as a change in resistance value. be able to. A variable capacitor may be used instead of a variable resistor.

In FIGS. 2 and 4, the pressure detection mechanism is the same as that described above, but the difference is that 11 applies pressure only from the pressure receiving part on which pressure can be applied by placing one fingertip. In addition, if this switch is installed as a part of a conventional keyboard, which is a key switch panel, no external wiring is required and failures are less likely.

The disk 10 is a guide with a notch so that it can move toward the center of the detection object when the center rod 1 is deflected to the outer circle, and FIG. 5 is a plan view of the disk 10 cut into rings. When the central axis 1 approaches 2 along with 3, the movement is restricted so that it moves toward the center of the detection object 2 because of the notch of the guide 10.

Figure 6 shows a part of the inside of the cylinder in the case of the optical detection method.
The light blocking plate 15 does not move due to the pressure applied to the central axis 1 and blocks light to the inner light pipe 17. Further Calo pressure prevents the passage of light into the outer light conduit 18.

If optical semiconductors 14 and 13 are provided externally, it is possible to detect the direction and the strength of the pressing force.

FIG. 7 shows a signal processing circuit in the case of a switch method (digital method), and 21 to 33 are detector terminals. Now, Al: 2.5v, Bl: 5. If Ov is applied to L and contact C is connected to A when the pressure is "weak" and to B when it is "strong", the terminal 21 receives 2.5 V when the pressure is "weak". , +1 When the pressing force is strong l', 5, Ov is output.

Furthermore, 2. Ov, E to 4. When ov is applied, the output of the discriminator 35 becomes 'H' (high level) and the gate 5
1 is opened, and only the output terminal 61 is set to 'L' (low level).When the pressure is "strong", the output of the discriminator 43 is set to 'L' (low level).
] and set output terminal 61 to L'' in the same way,
Furthermore, the output terminal 60 is also set to ``L'' by the ``L'' OR circuit 59.
Make it IT.

That is, only the output end in the corresponding direction becomes a low level, and when a stronger pressing force is applied, the terminal 6o becomes a low level.The output end 70 becomes a low level when pressure is applied in the direction of the paper.

Reference numeral 32 denotes a variable resistor whose resistance value changes in proportion to the amount of rotation of the aforementioned coordinate system, and a voltage proportional to the amount of rotation is applied to a terminal 33. Using analog-to-digital converter 34, this voltage can be output as a digital value to terminal 71.

The electric signals of digital values of the direction, strength, and amount of rotation outputted as described above can be easily taken into a processing device (conbeater) and processed.

For example, controlling the movement of a moving object or display position by moving it in the same direction as the human hand using only pressure force, increasing the speed of movement depending on the strength, or moving it in a direction where it crawls in response to strong force. It can be used for control that more naturally reflects the human will, such as moving only in the direction selected by the previous strong force in response to a weak force (stroke function).

[Brief explanation of drawings]

Figure 1: Pen type switch type detector Figure 2:
...Key type switch type detector Figure 3...
・Pen type analog type detector Figure 4...Key type analog type detector Figure 5...Cross section (guide section) Figure 6...Light type (switch type) ) Detector Fig. 7...Example of switch type digital signal converter 1...Center rod (shaft) 2, 3...Detector 4...Paper direction pressure detection switch 5...Variable resistor (capacity) container 6
...Coordinate display pointer 7..Case 8..Pen tip 10.. Force id 11..Base on which the fingertip is placed 12..Light source 13, 14..Light detector 15.. Disc plates 16, 17, 18... Light pipes 21-33... Detector terminals 34... Analog-digital converter 35-42... "Weak pressurization gas" discriminator 43-50... Strong pressure discriminator 51
~58...Gate 59...Or Gate 60~71・
...Output terminal patent association applicant Fujioka -Rogiku 5 figure s6 figure

Claims (1)

[Claims] A pen-shaped case held by hand or a stand on which one fingertip is placed is arranged concentrically (radially) with a center axis that displaces, and at least two levels of human pressure, strong and weak, are applied in the same direction. A manual pressure detector consisting of a detection object and a detection object.