JPS58154379A - Limit regulator for shutter - Google Patents

Abstract

PURPOSE:To obtain an accurate limit regulator by simply setting of numeric value by stopping the movement of a slat curtain when the counted value of pulses proportional to the upward and downward movement amounts of the curtain coincides with the set value. CONSTITUTION:An opening signal from a pushbutton switch board 12 is applied through a converter 10 and first, second transceivers 8, 9 to a control panel 7 by normally rotate a motor 5, thereby rising a slat curtain 1. The pulse signal of the number of pulses corresponding to the rising amount of a slat curtain 1 outputted from an A/D converter 6 is applied through the panel 7, transceivers 8, 9 and converter 10 to a preset counter 11. When the counted value of the pulses coincides with the set value, an upper limit signal is applied from the counter 11 through the converter 10, transceivers 8, 9 to the panel 7, thereby stopping rotating of the motor 5. The closing operation is performed by the similar operation to the above.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has a winding shaft that is rotated in forward and reverse directions by a motor.
The present invention relates to a limit adjustment device for winding up and unwinding a slat curtain and for adjusting the upper and lower limit stopping positions of an electric shutter.

For electric shutters, the upper and lower limits of the stopping position fl
Adjustment is extremely important work, and if the adjustment is incorrect, the slat curtain may stop before being completely lowered.

Even if it is completely lowered, the motor may remain in operation, which may cause a malfunction.

The upper and lower limit positions of the slat curtain in conventional electric shutters are detected by a limit switch using a mechanical detection means installed in the magsa part. Therefore, the upper and lower limit stop positions can be adjusted by adjusting the limit switch mounting position or the slat curtain. The work required noise to minutely change the mounting position of the limit switch contact piece on the curtain side. Such adjustment work is complicated and time-consuming, requiring one worker to climb onto a stepladder or scaffold and actually operate the shutter while gradually determining the optimal position.

The present invention has been made in view of the above points, and 1
There is no need to stand on a stepladder or scaffolding.

It is an object of the present invention to provide a limit adjustment device that allows highly accurate adjustment by simply performing a simple setting operation.

That is, the present invention calculates the number of pulses proportional to the amount of upward and downward movement of the slat curtain. According to the preset value, the slat curtain is raised and controlled by the motor that drives the slat curtain.
It is characterized by comprising a control panel for lowering and stopping operations.

Next, an embodiment of the limit adjusting device according to the present invention will be described with reference to the drawings.

In the figure, 1 is a slat curtain that constitutes a shutter, and the slat curtain 1 is attached to the top of this slat curtain 1.
A hoisting drum 2 for winding is provided, and a drainer 3 is formed at the bottom. The winding drum above? The rotating shaft 2a is connected to a motor 5 via a reducer 4,
A rotating disk d is attached to the rotating shaft 5aK of the motor 5, and an A-D converter 6 is constituted by the rotating disk d and a photogravimetric detector S that generates pulses corresponding to the rotation angle of the disk d. The signal from the photoelectric detector S is applied to a control panel 7 that controls forward and reverse rotation of the motor 5 and turns it on and off. It is connected to a preset counter 11 and a push button switch 12 via a transmitting/receiving device 9 and a converter 10'. Above 1. The second transmitting/receiving devices 8, 9 and the converter 10.

It is used to utilize wireless methods such as radio waves, ultrasonic waves, or light as a communication medium, and is omitted when indoor wiring is used as the communication medium.

The preset counter 11, as shown in FIG.
In order from the top, a shutter position display section 13, an upper limit display section 14, an upper limit setting dial section 15, a lower limit display section 16, and a lower limit setting dial section 17 are provided. A numerical value corresponding to the curtain position is displayed, and the numerical value changes as the slat curtain 1 moves up and down. The upper limit display section 14 displays the numerical value set by the lower limit setting dial section 15, and when the numerical value on the upper limit display section 14 and the numerical value on the shutter position display section 13 match,
The preset counter 11 is configured to output an upper limit signal, and the lower limit display section 16 similarly displays a numerical value set by the lower limit setting dial section 17, and the numerical value on the lower limit display section 16 and the shutter When the value on the position display section 13 matches, the preset counter 1
The configuration is such that a lower limit signal is output from 1. As shown in FIG. 3, the preset counter 11 having the above structure is housed within a wall 18, and its operation surface 11a is normally covered by a push button switch board 12.

The push-button switch board 12 is removably attached to the operation surface 11a of the preset counter 11 with screws 19, and the push-button switch board 12 has a shutter open operation button 20, a shutter stop operation button 21, and a shutter close operation button. An operation button 22 is provided.

Next, the question is asked about the effect of the limit device described above.

First, when the release operation button 20 of the push button switch board 12 is pressed, this signal is transmitted to the converter 1o and the first. The signal is applied to the control panel 7 via the second transmitting/receiving device 8.9, causing the motor 5 to rotate normally. In this way, the slat curtain 1 rises, and at this time, the A-D converter 6 generates a number of pulses corresponding to the amount of rise of the slat curtain 1, and the pulses are transmitted to the control panel 7 and the first . Second transmitting/receiving devices 8, 9 and converter 10
The data is added to the preset counter 11 through the process.

Preset counter 11 counts the pulses.

When the numerical value displayed on the shutter position display section 13 matches the numerical value set on the upper limit display section 14, the preset counter 11
to the converter 10 and the first . An upper limit signal is applied to the blood control plate 7 via the second transmitting/receiving device 8,9, and the rotation of the motor 5 is stopped, and the slat curtain 1 stops rising. Therefore, if the numerical value corresponding to the upper limit position UL of the drainer 3 is set in the total upper limit display section 14, the slat curtain 1 will automatically stop when it rises to the upper limit position. Further, when the closing operation button 2211 is pressed, the signal is similarly applied to the control panel 7 via the converter 10 and the first and second transmitting/receiving devices 8 and 9, causing the motor 5 to rotate in reverse. In this way, the slat curtain 1 is lowered, and the number of pulses corresponding to this lowering amount is added from the A-D converter 6 to the preset counter 11, and the shutter position display section 13 of the preset counter 11 displays a value corresponding to the position of the slat curtain l. is displayed. When this value matches the value set on the lower limit display section 16, the rotation of the motor 5 is stopped and the lowering of the slat curtain l is stopped. If the numerical value corresponding to the position DLK is set on the lower limit display section 14, the slat curtain l will be lowered to the lower limit position at □,•, and then automatically stopped at '.-.

In this way, the upper and lower limit stop positions can be adjusted with a simple force operation of setting numerical values, and the M adjustment can be performed smoothly, eliminating the tedious work that would have required one worker to do it while standing on a stepladder or scaffolding. Moreover, in this embodiment, since the movement of the slat curtain 1 is detected directly from the rotation of the motor 5, it can be extracted as a significant change in the total numerical value of minute movements of the slat curtain 1. Therefore, it is possible to perform adjustments with extremely high precision.

In the embodiment described above, the A-D converter 6 which obtains pulses directly from the rotation of the motor 5 is used, but the A-D converter 6 which obtains pulses directly from the rotation of the motor 5 is used.
A D converter may be used, or a configuration may be adopted in which a detection element is provided, for example, in the slat curtain 1 and a pulse corresponding to the amount of movement thereof is obtained directly from the slat curtain 1.

Furthermore, in the embodiment described above, the rotation of the motor 5 is stopped to stop the slat curtain l', but the reducer 4 is provided with a brake, and when a limit signal is applied to the control panel 7, the brake is also activated. If you configure it to
Furthermore, the slat curtain l can be stopped reliably.

Further, in the above-described embodiments, the push-button switch board is fixed to the wall of the building, but it may also be a separate type, wireless or wired.

As explained above, according to the present invention, pulses proportional to the amount of upward and downward movement of the slat curtain are counted, and when the counted value matches a preset value, the movement of the slat curtain is stopped. This structure has the effect of making it possible to adjust the limits by simply setting the values, eliminating the need for complicated mechanical adjustment work that had to be done by one worker on a stepladder or scaffolding. There is an effect that does not. In addition, since the upper and lower limit values are expressed numerically in this way, compared to the conventional intuitive adjustment work, there is no individual difference and there is an effect that leads to an improvement in quality. Moreover, unlike conventional mechanical limit switches, there is no risk of metal fatigue or mechanical wear, resulting in improved durability.

In addition, in the present invention, if the operation surface of the preset counter is normally covered by a push button switch panel, there is no risk that a normal user will accidentally manipulate the limit set value, and the adjustment operator can The presence of the preset counter near the push button switch panel has the effect of making adjustment work easier.

Furthermore, in the present invention, since the A-D converter is not used, a minute movement of the slat curtain I can be extracted as a large change in numerical value, which has the effect of allowing highly accurate adjustment.

[Brief explanation of the drawing]

The figure shows one embodiment of the limit adjustment device according to the present invention, and FIG. 1 shows the same device. The block diagram shown in Figure 2 is a front view showing the operation surface of the preset counter, and Figure 3 (A
) and (B) are perspective views showing how the preset counter and the push button switch board are attached. l...Slat curtain, 5...Motor, 6...A
-D converter, 7... Control panel, 11... Preset counter, 11a... Operation surface of the preset counter. 12...Push button switch board. Patent Applicant Bunka Shutter Co., Ltd. Agent Patent Attorney Norimitsu Nishimura Figure 1/Figure 3 (A)

Claims (3)

[Claims] (1) An A-D converter that obtains the number of pulses proportional to the amount of upward and downward movement of the slat curtain, and
A preset counter that counts pulses from the converter and outputs a limit signal when the counted value matches a preset value, and a limit signal tube from this preset counter that stops the movement of the slat curtain. At the same time, the motor that drives the slat curtain is controlled to raise, lower, and lower the slat curtain.
A limit adjustment device for a shutter, characterized by comprising a control panel for performing a stop operation. (2) An A-D converter that obtains a pulse number proportional to the rising and falling movement 1 of the slat curtain, and the pulses from this A-D converter are counted, and the counted value matches the preset value. At the same time, a preset counter that outputs a limit signal and a limit signal tube from this preset counter are used to completely stop the movement of the slat curtain, and at the same time, the motor that drives the slat curtain is controlled to raise the slat curtain.・Equipped with a control panel for lowering and stopping operations, and a push-button switch panel device that sends operation signals for raising, lowering, and stopping the slat curtain to the control panel; A limit adjustment device for a shutter, which is detachably attached to the operation surface of the preset counter, and the operation surface of the preset counter is covered by a push button switch board. (3) The limit adjustment device for a shutter according to claim 1 or 2, wherein the A-D converter is configured to directly convert the rotation of the motor into a pulse signal.