JPH11126549A - Controlling device for detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To thin a controlling device for a detector by adjusting displayed values or displayed amounts by rotating or turning an operating part for adjusting displayed values or displayed amounts shown on a displaying part in the two way directions. SOLUTION: A rotatable operating part 5 is constituted so as to be radially and circumferentially operated respectively independently. By rotating the operating part in the both directions (arrows A, B directions) displayed values are adjusted, and by pressing it onto a body case 10, a switch SW performs change over operation. For example, a displayed value during pressing is stored in a control circuit as a threshold. The rotatable operating part 5 consists of on-disk members (constituting a rotary encoder) P1, P2 turning around a rotating shaft O, a slide plate which can slide radially (arrows C and D), and a slide switch. The disk P1 is rotatable with facing the disk P2, and the disk P2 is fixed to the slide plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detector control device, and more particularly, to an operation unit.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional photoelectric switch. In this figure, a control device 1 for a photoelectric switch is connected via a cable 3 to a head unit 2 for emitting and receiving light. The control device 1 includes a display unit 4 and various operation buttons 51 to 5.
4 are provided. The display unit 4 displays, for example, the amount of received light and a threshold for comparing the amount of received light. The operation buttons 51 to 54 are used to switch the display on the display unit 4 or to adjust display values.

[0003]

In recent years, there has been a strong demand for downsizing of the detector, and there has been a strong demand for a thinner control device 1 for the detector. However, the conventional detector control device 1 includes:
Since the push button type operation buttons 51 to 54 are provided, the operation buttons 51 to 54 are required for each type of operation, so that the number of the operation buttons 51 to 54 increases, and the thickness of the control device 1 increases. Is likely to be thick.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to reduce the thickness of a detector control device by devising a structure of an operation unit of the detector control device. It is.

[0005]

In order to achieve the above object, the present invention provides a control device for a detector provided with an operation unit for adjusting a display value or a display amount displayed on a display unit.
It is characterized in that the operation unit is a rotary or rotation type operation unit that can adjust a display value or a display amount by rotating or rotating the operation unit in both directions. In the present invention, the term "detector" refers to a device that compares detected information with a predetermined threshold value and outputs a result of the comparison, and includes a measuring device that outputs a measured value. Absent. In addition, “rotatable” refers to a device capable of rotating 360 ° or more, while “rotatable” refers to a device capable of rotating within a range of a rotation angle smaller than 360 °.

According to the present invention, the display value and the like can be adjusted by rotating one operation unit in both directions, so that two operations can be performed by one operation unit, so that the number of operation units can be reduced. Can be.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment. FIG. 1 is a plan view showing a control device 1 for a photoelectric switch. In FIG. 1, a main body case (housing) 1 of a control device 1 is shown.
On the upper surface of the “0”, there is a so-called jog dial (operation unit) 5,
A mode changeover switch (other operation unit) 55, an output mode first selection switch 56, and an output mode second selection switch 57 (further operation unit) are provided so as to slightly protrude upward from the main body case 10. . The jog dial 5 is connected to the control circuit 11 of FIG. 2 and serves to change a display object and a display value of the display unit 4 as described later. The mode changeover switch 55
Is connected to the control circuit 11 and switches between a setting mode and a detection (use) mode. The output mode first selection switch 56 determines the amount of received light (detected value).
A "bright mode" that outputs an "H" level signal when the light is brighter than a threshold value, and a "dark mode" that outputs an "H" level signal when the received light amount is darker than the threshold value. (The state of the signal to be output). On the other hand, the output mode second selection switch 57 is for selecting a timing for outputting a signal. In addition,
The output mode provided in the present control device is not limited to these modes.

The control circuit 11 is constituted by a digital controller or a microcomputer. The control circuit 11 emits predetermined detection light from the light projecting means 21 and controls the display unit 4 based on a signal inputted from the light receiving means 22. Display the received light amount as a digital value. Further, the control circuit 11 compares the light receiving amount with a preset threshold value, and outputs a binarized comparison result via the output unit 6.

The threshold value is set to be increased or decreased by operating the jog dial 5 in the setting mode.
In the setting mode, the threshold is displayed on the display unit 4.

When the jog dial 5 is rotated in the directions of arrows A and B (both directions) as shown in FIG. 3, the display value is adjusted, and when the jog dial 5 is pressed against the main body case 10, the jog dial 5 is switched to the switch SW. To make it work,
For example, the control circuit 11 stores a display value when the button is pressed as a threshold. The jog dial 5 uses a rotary encoder, and has a well-known structure (see Japanese Patent Application No. 6-232404 and Japanese Patent Application Laid-Open No. H8-317034). The general structure will be described below.

The jog dial 5 is configured to be independently operable, for example, in a circumferential direction and a radial direction. That is, the jog dial 5 is provided so as to partially protrude from the main body case 10 of the control device, and is arranged in a circumferential direction (arrows A and B) around the rotation axis O
Are formed by disc-shaped members (constituting a rotary encoder) P1 and P2 that rotate in the vertical direction, a slide plate (not shown) slidable in the radial direction (arrows C and D), and a slide switch SW. . Here, the slide plate and the slide switch SW are urged in the direction of arrow C.

The rotary shaft O is supported by a slide plate. When the jog dial 5 is pushed in the direction of arrow D, the rotary encoders P1 and P2 slide together with the slide plate to depress the switch SW. , So that it can be controlled to the ON state. The click on the jog dial 5 is detected by detecting the on / off state of the switch SW.

The rotary encoder slidable integrally with the slide plate is, for example, shown in FIGS. 4 (a) and 4 (b).
As shown in the figure, the disk is composed of two disks P1 and P2. The disk P1 is opposed to the disk P2 and is rotatably attached to the disk P2 fixed to the slide plate.

Further, a pair of opposing electrodes X1 and X2 are provided on the disk P1 on the movable side. Counter electrodes X1, X
Numeral 2 is configured to be in sliding contact with a large number of pairs of opposing electrodes Y1 and Y2 provided along the circumference of the disk P2 when the disks P1 and P2 are assembled. The counter electrodes Y1 and Y2 provided on the disk P2 are composed of an outer electrode Y1 and an inner electrode Y1.
The positions in the circumferential direction are slightly deviated from those in No. 2.

Therefore, when the jog dial 5 is turned in the direction of arrow A, the potential output from the opposing electrodes X1 and X2 is such that the potential on the inner peripheral side falls to the ground potential first as shown in FIG. On the other hand, when it is turned in the direction of arrow B, FIG.
As shown in (b), the potential on the outer peripheral side falls first. Therefore, the rotation direction of the jog dial 5 can be detected by detecting the order in which the jog dial 5 falls, and the rotation amount of the jog dial 5 can be detected by counting the number of pulses.

The other structure is the same as that of the conventional example shown in FIG. 7, and the same or corresponding parts are denoted by the same reference characters.
The detailed description is omitted.

Next, an example of using the photoelectric switch will be described. First, when setting the threshold value, the mode changeover switch (other operation unit) 55 in FIG. 1 is operated to set (select) the setting mode. Then, light is projected onto the object, and the reflected light or transmitted light is incident on the light receiving means 22 (FIG. 2), and the amount of received light is displayed on the display unit 4 as a digital value. After this display, the digital value is increased or decreased by rotating the jog dial 5 in the direction of the arrow A or B, changed to a desired value, and then pressed by pressing the jog dial 5 to display the digital value (display value) at that time. Is set and registered as a threshold.

As described above, according to the control device 1, one jog dial 5 can have three functions of increasing and decreasing the display value and setting the display value. Therefore, since the number of operation units is reduced, it is possible to make the control device 1 thinner.

Further, since the rotation operation and the pressing operation are performed on one jog dial 5, the setting operation can be easily remembered and the operability is improved.

In the above embodiment, the jog dial 5 is employed. However, the present invention may employ a so-called lever push switch 5A instead of the jog dial 5, as shown in FIGS. 6 (a) and 6 (b). Good. The lever push switch 5A has a lever portion 50 that is slightly rotated to the rotation end in the directions of arrows A and B in FIG. 6B and is pressed down in the direction of arrow D. For example, Alps Electric A lever push switch manufactured by Co., Ltd. can be used.

In the above-described embodiment, the switching operation such as the threshold value setting operation is performed by depressing the jog dial 5 or the lever push switch 5A (pressing in the direction of arrow D). For example, an operation of “ON” or “OFF” or an operation of mode selection may be performed. In each of the above embodiments,
Although a function of being able to perform a pressing operation is added to the rotary or rotary operation units 5, 5A, the present invention may be applied to an operation unit that can be operated only by rotation or rotation.

In the above embodiment, the digital display is performed on the display unit 4. However, in the present invention, the amount of received light may be displayed on a display unit such as a bar graph, or may be displayed in analog (display amount). May be. Further, the present invention can be applied to other detectors such as a proximity switch other than the photoelectric switch, and also applicable to a detector in which the control device 1 and the head unit (detection unit) 2 in FIG. 7 are integrated.

[0023]

As described above, according to the present invention,
The control device of the detector is provided with a rotary type operation unit that can adjust the display value etc. by rotating or rotating in two directions, so the number of operation units is smaller than before, so the control device is thinner. Can be achieved. In addition, since the display value and the like can be increased or decreased by rotating one operation unit bidirectionally, the operation is easy to remember and the operability is improved.

Further, by adding a function that can be pressed down, such as a jog dial or a lever push switch, it is possible to further reduce the thickness and improve the operability.

[Brief description of the drawings]

FIG. 1 is a plan view of a photoelectric switch control device according to a first embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of the photoelectric switch.

FIG. 3 is a schematic configuration diagram of a jog dial.

FIG. 4 is a schematic configuration diagram of a rotary encoder.

FIG. 5 is a timing chart showing the operation of the rotary encoder.

FIG. 6 is a plan view of a control device and a perspective view of a lever push switch showing a second embodiment.

FIG. 7 is a schematic perspective view showing a conventional photoelectric switch.

[Explanation of symbols]

 1: Control device 4: Display unit 5: Rotary operation unit 5A: Rotary operation unit

Claims (5)

[Claims] 1. A control device for a detector including an operation unit for adjusting a display value or a display amount displayed on a display unit, wherein the display value or the display amount is obtained by rotating or rotating the operation unit in both directions. A control device for a detector, characterized in that the control unit is a rotary or rotary operation unit capable of adjusting the pressure. 2. The control device for a detector according to claim 1, wherein the rotary or rotary operation unit comprises a push button that causes a switch to perform a switching operation when pressed. 3. The detector control device according to claim 2, further comprising another operation unit for selecting a setting mode for adjusting the display value or the display amount, and operating the other operation unit. After selecting the setting mode,
By rotating or rotating the rotary or rotary operation unit to increase or decrease the display value or the display amount, and pressing the rotary or rotary operation unit, the display value or the display amount is reduced. A detector control device that is set as a threshold. 4. The control of a detector according to claim 1, 2 or 3, wherein the control device for the detector further comprises another operation unit for selecting an output mode capable of selecting a state or a timing of a signal to be output. apparatus. 5. The control device for a detector according to claim 1, wherein the display unit is a display for displaying a digital value.