JPH0324206B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to a curtain opening/closing automatic stopping device.

When opening and closing curtains by motor drive,
It is desirable to automatically stop the motor when the curtain is completely opened and when the curtain is completely closed.

Conventional technology and its problems Conventionally, in order to do this, a limit switch that stops the curtain closing rotation of the motor and a limit switch that stops the curtain opening rotation of the motor are installed in fixed positions, and the limit switches are linked to the curtain opening/closing drive code or This method relies on a method in which a driven switch push piece turns off the former limit switch when the curtain is fully closed, and the latter limit switch when the curtain is fully opened. However, in the past, the positional relationship of the switch push piece with respect to the curtain opening/closing drive cord was fixed, so the limit switch was restricted to respond only to curtains of a specific size in the opening/closing width.

This problem may be solved by making the two limit switches movable and adjusting their positions in accordance with the opening/closing width of the curtain to which they are applied. However, it is still not easy to make such position adjustments correctly and appropriately.
In other words, general users of curtain opening/closing automatic stop devices,
In other words, it is extremely difficult for a person not skilled in the art to do this.

An object of the present invention is to provide a limit switch for stopping the rotation of a motor to close the curtain, and a limit switch for stopping the rotation of the motor for opening the curtain, to be able to respond to curtains of various sizes having different opening/closing widths, and to provide a limit switch for stopping the rotation of a motor for curtain opening. The purpose is to ensure that the response matching of the equal limit switch can be easily achieved even by a person not skilled in the art.

Means for Solving the Problems In order to achieve the above object, the present invention has the following configuration.

That is, the present invention provides an automatic curtain opening/closing stop device that is motor-driven to open and close the curtain, and is equipped with a first limit switch for stopping the curtain closing rotation of the motor, and a second limit switch for stopping the curtain opening rotation of the motor. a first primary rotating body driven by the curtain closing rotation of the motor; and a second primary rotating body driven by the curtain opening rotation of the motor, and having a rotational phase indicating index; The first secondary rotating body is equipped with a first secondary rotating body that can rotate together with the primary rotating body and can be manually displaced independently, and has a rotational phase indicator and is connected to the second primary rotating body. A second secondary rotating body that can rotate together and be manually displaced independently is equipped on the second primary rotating body, and a switch push piece for the first limit switch is provided on the first secondary rotating body, A switch pusher piece for the second limit switch is provided on the second secondary rotating body, and an index for positioning the index of the first secondary rotating body and an index for aligning the index of the second secondary rotating body are provided. The positioning index is set by displacing the first and second secondary rotating bodies relative to the first and second primary rotating bodies so that the switch push piece sets the rotational phase at which the first and second limit switches are turned off. The present invention relates to an automatic curtain opening/closing stop device characterized in that the curtain opening/closing automatic stopping device is arranged at a position facing the index of the first and second secondary rotating bodies when the first and second secondary rotating bodies are occupied.

According to the present invention, by displacing the first secondary rotating body by hand alone in a state where it does not rotate together with the first primary rotating body, the first primary rotating body is driven, in other words, it is driven. The rotational phase of the curtain opening/closing motor changes, and therefore the relative position of the first secondary rotating body with respect to the degree of curtain opening/closing progress. The relative position of the second secondary rotating body with respect to the second primary rotating body, that is, with respect to the opening/closing progress of the curtain, can also be changed in a similar manner. Then, the first and second secondary rotating bodies can be switched to a state where they can rotate together with the first and second primary rotating bodies at their displaced positions.

That is, according to the present invention, the displacement of the first and second secondary rotating bodies with respect to the first and second primary rotating bodies causes the first and second
The timing at which the first and second limit switches are turned off can be changed by means of a switch push piece on the secondary rotary body, so that the opening and closing widths of the first and second limit switches can be adjusted as needed to suit curtains of various sizes. The scope of application is not limited to one type as in the past.

Moreover, in the present invention, since the index for aligning the rotational phase indicating index of the first and second secondary rotating bodies is arranged at a predetermined position, when the present invention device is installed at the place where it is used, the curtain opening/closing motor can be Turn on the rotation drive switch and rotate the motor to close the curtain. When the curtain is completely closed, turn off the switch to stop the motor. Under this condition, as described above, the first guarantees that the responsive matching of the first limit switch to the opening/closing width of the applied curtain can be easily achieved by a person not skilled in the art by displacing the secondary rotating body until the mark thereon matches the corresponding mark at a predetermined position. Then, turn on the curtain opening rotation drive switch of the curtain opening/closing motor to rotate the curtain opening rotation, and when the curtain is fully opened, turn off the switch to stop the motor. A person not skilled in the art can adjust the response of the second limit switch to the opening/closing width of the applied curtain by displacing the second secondary rotating body relative to the primary rotating body until its mark matches the corresponding mark at a predetermined position. Ensure conciseness.

In the present invention, the first and second secondary rotating bodies are generally those that perform a rotational movement such that their switch push pieces turn off the first and second limit switches within a range not exceeding one rotation. In accordance with this, a curtain opening/closing motor is used to drive the first and second secondary rotating bodies using an appropriate reduction transmission mechanism, such as a planetary gear, or, if necessary, an additional reduction transmission gear. It is better to rotate.

Effects of the Invention As described above, according to the present invention, the limit switch that stops the curtain closing rotation of the motor and the limit switch that stops the curtain opening rotation of the motor can be made to respond to curtains of various sizes that differ in opening/closing width. Moreover, the effect is obtained that even a person not skilled in the art can easily match the response of the limit switches to curtains of different sizes.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

In the figure, 1 is a motor for opening and closing a curtain (not shown), 2 is a pulley driven by the motor 1, 3 is a curtain opening/closing drive belt driven by the pulley 2, and 4 is a curtain rail for hanging the curtain. It is preferable that the belt 3 is of a non-slip type.

Reference numeral 5 indicates a first primary rotating body, and numeral 6 indicates a second primary rotating body, which are installed at fixed positions near the rotating shaft 7 of the motor 1. The first primary rotating body 5 has a gear 8 , the second primary rotating body 6 has a gear 9 , and the gears 8 , 9 mesh with a gear 10 . These gear rows 10, 8, and 9 serve as reduction transmission gears.
The gear 10 is rotated at a low speed by the rotating shaft 7 of the motor 1 through a planetary gear type reduction transmission mechanism 11. The first and second primary rotating bodies 5 and 6 have the same rotation speed.
The first primary rotating body 5 and the second primary rotating body 6 rotate no more than one revolution with the rotation of the motor 1 corresponding to changing the curtain from fully open to fully closed (or vice versa). do it like this.

A first secondary rotating body 12 is equipped coaxially with the first primary rotating body 5 so as to be slidable in the axial direction, and a second
A second secondary rotating body 13 is provided coaxially with the primary rotating body 6 so as to be slidable in the axial direction. The first and second secondary rotating bodies 12 and 13 have knobs 14 and 15. The first primary rotating body 5 and the secondary rotating body 12 are provided with suitable engaging means for drivingly coupling them, for example, splines 16 and 17, and the second primary rotating body 6 and the secondary rotating body 13 are also provided with suitable engaging means for drivingly coupling them. Similar engagement means are provided for driving connection. The first secondary rotating body 12 is the first
The second secondary rotating body 13 is biased by a spring so as to maintain a state of driving connection with the primary rotating body 5, and the second secondary rotating body 13 is biased with a spring so as to maintain a state of driving connection with the second primary rotating body 6. The springs for this spring biasing are designated by reference numerals 18 and 19.

A first limit switch 20 for stopping the curtain closing rotation of the motor 1 is disposed close to the outer peripheral surface of the first secondary rotating body 12, and a first limit switch 20 for stopping the curtain closing rotation of the motor 1 is disposed close to the outer peripheral surface of the second secondary rotating body 13. A second limit switch 21 for stopping the curtain opening rotation of the motor 1 is arranged, a switch push piece 22 for the first limit switch 20 is formed on the outer peripheral surface of the first secondary rotating body 12, and the second limit switch 21 is arranged to stop the curtain opening rotation of the motor 1. 21 to the second secondary rotating body 13.
Formed on the outer peripheral surface of.

An indicator 26 for indicating the rotational phase of the first secondary rotating body 12 is displayed around the first secondary rotating body 12, and an indicator 27 for indicating the rotational phase of the second secondary rotating body 13 is displayed. It is displayed around the second secondary rotating body 13. The indicator 24 for positioning the indicator 26 of the first secondary rotating body 12 is moved by displacing the first secondary rotating body 12 with respect to the first primary rotating body 5, so that the switch pressing piece 22 The second secondary rotary body 13 is placed at a position opposite to the indicator 26 of the first secondary rotary body 12 when the first limit switch 20 is turned off (FIG. 1). The index 25 for positioning the index 27 of the second primary rotating body 6
By displacing the second secondary rotating body 13 relative to the limit switch 21, the switch pushing piece 23
The second secondary rotary body 13 is placed at a position opposite to the index 27 of the rotary body 13 when the second secondary rotary body 13 occupies a rotational phase that cuts .

In the illustrated embodiment of the invention, the responsiveness of the first limit switch 20 and the second limit switch 21 to the applicable curtain opening/closing width may be adjusted as follows.

Initially, if the curtain suspended from the curtain rail 4 is closed, turn on the curtain opening rotary drive switch (not shown) of the motor 1 to open the curtain, and then turn the switch with the curtain open. to stop motor 1. Then, in this state, pull the knob 15 of the second secondary rotating body 13 to release the driving connection with the second primary rotating body 6, and while maintaining this driving connection released state, the index 2
Manually displace the second secondary rotating body 13 to the second primary rotating body 6 until the index 27 is aligned with the index 2.
5 and 27 (in Fig. 3, the state before the index 27 meets the index 25 is shown by a broken line, and the state where they are matched is shown by a solid line), the secondary rotating body 13 is released and the spring attached The second primary rotating body 6 is brought into driving connection again by force. In this way, the switch push piece 23 on the second secondary rotating body 13 is adjusted to the position where it turns off the second limit switch 21, that is, it is aligned so that the second limit switch 21 responds to the opening/closing width of the applied curtain. will be done.

Next, the curtain closing rotation drive switch (not shown) of the motor 1 is turned on to close the curtain, and when the curtain is closed, the switch is turned off to stop the motor 1. Under this condition, the first secondary rotating body is turned on. 12 knob 14 is pulled to release the first secondary rotary body 12 from the driving connection with the first primary rotary body 5, and under the release, the secondary rotary body 12 is moved to the index 2.
4 until the index 26 is aligned with the index 26, and when the indexes 24 and 26 are aligned (Figure 4 shows the state where the index 26 is aligned with the index 24 with a solid line, and before they meet, ), the secondary rotating body 12 is released and brought into driving connection with the first primary rotating body 5 again by the spring biasing. In this way, the switch push piece 22 on the first secondary rotating body 12 is adjusted to the position where the first limit switch 20 is turned off, and the first limit switch 21 is responsively matched to the opening/closing width of the applied curtain.

When the motor 1 is rotated to open and close the curtain, the first and second rotating bodies 5,
12 and 6 and 13 rotate, and when closing the curtain, the first secondary rotating body 12
The upper switch push piece 22 turns off the first limit switch 20 when the curtain is fully closed, and the switch push piece 23 on the second secondary rotating body 13 turns off the second limit switch 21 when the curtain is opened. Cut.

In the illustrated embodiment, each component including the motor 1 is compactly assembled into a casing 2.
The motor 1 with the casing 28 is housed in the curtain rail 4 along with the accompanying electrical system such as wiring.
The installation of the curtain opening/closing automatic stop device to the curtain rail 4 can be completed by simply setting the curtain rail 4 to the curtain rail 4.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of the main parts of the embodiment, and FIGS. FIG. 5 is an explanatory diagram of index alignment when performing the required response alignment of the limit switch, and FIG. 5 is a common disassembled perspective view of the first and second primary rotary bodies and the secondary rotary body. 1 is a motor, 2 is a pulley, 3 is a drive belt, 4 is a curtain rail, 5 is a first primary rotating body, 6 is a second primary rotating body, 7 is a rotating shaft, 8,
9 and 10 are gears, 11 is a planetary gear type reduction transmission mechanism, 12 is a first secondary rotating body, 13 is a second secondary rotating body, 14 and 15 are knobs, 16 and 17 are splines, 18 and 19 is a spring, 20 is a first limit switch, 21 is a second limit switch, 22, 23 are switch push pieces, 24, 25, 2
6 and 27 are indicators.

Claims (1)

[Claims] 1. A curtain opening/closing automatic stopping device which is a curtain opening/closing type driven by a motor and is equipped with a first limit switch for stopping the curtain closing rotation of the motor, and a second limit switch for stopping the curtain opening rotation of the motor, a first primary rotating body driven by the curtain closing rotation of the motor; and a second primary rotating body driven by the curtain opening rotation of the motor, the first primary rotating body having a rotational phase indicator; A first secondary rotary body is equipped with a first secondary rotary body that can be manually displaced together with the second primary rotary body and independently, and has a rotation phase indicator and rotates together with and independently of the second primary rotary body. The second primary rotating body is equipped with a second secondary rotating body that can be manually displaced by turning the limit switch. a switch push piece for a limit switch is provided on the second secondary rotating body, an index for positioning the index of the first secondary rotating body;
and the indicator for positioning the indicator of the second secondary rotating body, by displacing the first and second secondary rotating bodies with respect to the first and second primary rotating bodies, and the switch pushing piece
The curtain opening/closing is characterized in that the curtain is arranged at a position facing the index of the first and second secondary rotating bodies when the first and second secondary rotating bodies occupy the rotational phase in which the first and second limit switches are turned off. Automatic stop device.