JPS6232915A - Curtain opening/closing driving apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of the Invention The present invention relates to a curtain opening/closing drive device that drives, for example, left and right curtains to open and close in opposite directions. The present invention relates to a curtain opening/closing drive device that controls a drive source to stop at the opening/closing position.

(b) Backbone of the invention Conventionally, the curve opening/closing drive device for this scale has been constructed by, for example, connecting drive pulleys for driving the left and right curtains to the output shaft of a motor, interlocking a belt with this pulley, The leading launches, which are provided separately on the side and front sides, are individually locked to the ends of the left and right curtains, and the above-mentioned motors are driven in forward and reverse directions to open and close the curtains placed on the left and right sides in opposite directions. It is composed of

The stop control of the motor at the moving end of the curtain can be controlled, for example, by: - disposing a limit switch on the curtain rail at the moving end of the leading runner, and operating this limit switch by the movement of the curtain; Turn motor to 0FF
If the limit switch is installed in the same way, wiring connection work for the limit switch is required, and this work is very troublesome.

As another means, if the overload of the motor received at the moving end of the curtain is detected electrically or mechanically, and this detection signal is used to control the motor to stop, both electrically and mechanically. This also has the problem of complicating the structure.

(c) Purpose of the Invention This invention counts the amount of movement of each curtain that is opened and closed in opposite left and right directions using a counter, and when the counted value reaches a set value, the motor is stopped and controlled. in,
The purpose of the present invention is to provide a curtain opening/closing drive device with a simplified stop control mechanism and excellent workability.

(D) Summary of the Invention This invention provides a drive pulley connected to a motor output with a rotation amount that corresponds to the amount of movement of the curtain of the drive pulley.
The curtain opening/closing driving device is characterized in that the counter is equipped with a switch that controls the motor to stop when the counted value of the counter reaches a set value.

(e) Effects of the Invention According to this invention, the counter and switch for controlling the stop of the curtains that are opened and closed from left to right are provided on the drive pulley of the curtain, so there is no need to provide a limit switch on the curtain rail. Installation work is simplified.

Furthermore, since it is composed of a counter and a switch, the mechanism is simple compared to means for detecting motor faults, and moreover, it can be housed in the unit of the motor, transmission system, and drive pulley. This allows the opening/closing drive device to be configured compactly.

(f) Examples of the invention An embodiment of the present invention will be described in detail below based on the drawings.

The drawing shows a curtain opening/closing drive device, and in FIG. 1, the upper edges of the curtains 10.10 placed on the left and right sides are
It is suspended from a curtain rail 11 disposed at the top, each outer end side is fixed, and the inner end side is opened and closed in opposite directions.

An endless drive belt 12 is stretched over a drive pulley 13 and a driven pulley 14 above the curtain rail 11, and on the front and back sides of this drive belt 12,
The leading launches 15.15 of the left and right curtains 10.10 are fixed, and the drive belts 12 are driven in forward and reverse directions, so that the curtains 10.10 are opened and closed in opposite directions.

The drive pulley 13 described above has two M star gear reduction mechanisms 16.
17 to the forward/reverse motor 18, and each reduction mechanism 16.17 includes a sun gear 19, a planetary gear 1720,
It is composed of an internal gear 1721 and a carrier 22 that supports the planetary gear 20.

The output shaft 23 of the motor 18 is directly connected to the sun gear 19 of the front speed reduction mechanism 16, the carrier 22 of the front speed reduction mechanism 16 is directly connected to the rear sun gear 19, and the carrier 22 of the rear speed reduction mechanism 17 is driven. It is directly connected to pulley 13.

Although the internal gear 21 of the front speed reduction mechanism 16 is fixed to an appropriate fixing member, the internal gear 21 of the rear stage
1 is provided to be freely rotatable and also to be able to move a certain amount in the vertical direction, and this internal gear t=2
An electromagnet 24 is disposed on the outer periphery of the electromagnet 2.
By turning OFF and ON operations in step 4, the internal
The rotation of 1 can be fixed or free.

Therefore, the above electricity 1m? -124 is turned on and the rotation of the internal gear 21 is fixed, the output of the motor 18 is input to the drive pulley 13 via the two-stage reduction mechanism 16.17, and the drive pulley 13 is drive,
Open and close curtains 10.10. Also, the electromagnet 24 is
When the FF is operated, the internal gear 21 becomes free, so the interlock with the motor 18 is released, and the curtain 10.1
0 can be opened and closed manually.

An output gear 25 is fixed to the aforementioned drive pulley 13, and each input gear 3 of the counter 26, 27 is connected to the output gear 25.
8 are engaged.

The above-mentioned counters 26 and 27 correspond to the set curtain 10.
．． This device controls the drive of the motor 18 to stop at the opening/closing position of the curtain 10, and one 26 acts on the opening side of the curtain 10, and the other 27 acts on the closing side of the curtain 10, each corresponding to the amount of movement of the curtain 10. - This is done by counting the amount of rotation of the output gear 25.

Since the configuration of each of the counters 26 and 27 described above is different, the configuration of one open side counter 26 will be explained.

As shown in FIGS. 2 and 3, a support shaft 37 is installed on a support frame 35 that forms the outer shell of the counter 26, and an input gear 38 is loosely supported on one end of the support shaft 37. The input gear 38 is connected to an interlock gear 39 which is loosely fitted onto the support shaft 37 and rotates in one direction.

Further, the above-mentioned input gear 38 meshes with the above-mentioned output gear 25, and the forward and reverse rotation of the drive pulley 13 is input thereto.

The above-mentioned support shaft 37 has three t11 wheels 10, 41.4
2 are supported in a loosely fitted state, and these counting wheels 40 to 42 sequentially increase and count the amount of rotation of the drive pulley 13 on the curtain opening side.

A gear 44 and a heart cam 45 (see FIG. 4) are integrally formed on one side of each of the counting wheels 40 to 42 in the same direction, and the gear 44 rotates each of the counting wheels 40 to 42. The heart cam 45 is activated to clear the set initial position, as will become clear in the description below.

Further, on the other side in the same direction of the two wheels 40.41 on the lower digit side, a feed pawl 46.46 is continuously formed, and this feed pawl 46.46 Provided to shift the wheels 41, 42 intermittently.

A swing frame 47 is provided at a position facing each of the four wheels 40 to 42 described above, and this swing frame 47 is pivotally connected to the support frame 35 by a shaft 48 and is pushed in the approaching and separating directions. It is movable,
A spring 49 wound around the shaft 48 urges the cutting wheels 40 to 42.

A swing shaft 50 is installed on the above-mentioned swing frame 47, and three carry gears 51 to 53 are loosely supported on the swing shaft 50, and the interlocking gear 39 and each of the rotary wheels 40 to 53 are supported in a loosely fitted state. 42.

The first carry gear 51 mentioned above is connected to the interlocking gear 39 and the first carry gear 51.
The rotation of the interlocking gear 39 is transmitted to the first counting wheel 40 by meshing with the gear 44 of the counting wheel 40 .

The aforementioned second carry gear 52 meshes with the feed pawl 46 of the 81 number wheel 40 of Ml and the gear 44 of the second counting wheel 41, and rotates the first counting wheel 40 one rotation. is transmitted as a carry amount of the set amount of the second counting wheel 41.

The above-mentioned third carry gear 53 meshes with the feed pawl 46 of the second shadow 1 wheel 41 and the gear 44 of the third counting wheel 42, so that one rotation of the second counting wheel 41 is The rotation is transmitted as a set carry amount of the third counting wheel 42.

The above-mentioned counting wheels 40 to 42 rotate each gear 4 so that when each of them rotates 10 times, the counting wheel of the upper digit of the next stage rotates once.
4. The number of teeth of each carry gear 51 to 53 is set, and the rotation amount of the counting wheel 42 at the lowest digit is set so that it rotates less than one rotation with respect to the maximum movement amount for opening and closing the curtain 10. has been done.

Furthermore, although the counting wheel 40 of the lowest lower digit rotates continuously, the counting wheels 41 and 42 of the next and higher stages rotate intermittently as the feed pawl 46 rotates.

When the four wheels 40 of the lowest lower digit rotate once based on the rotation of the drive pulley 13, the feed pawl 46 of the counting wheel 40
The carry gears 52 and 53 of the next stage are rotated in a digit-to-toe manner, and by sequentially transmitting such carry rotation, each counting wheel 4
0 to 42 are carried.

At this point, the amount of rotation of the drive pulley 13 on the open side is counted by the counting wheels 40 to 42 of the counter 26.

Note that the counting direction of the counter 26, that is, each counting wheel 4
The shift direction from 0 to 42 is a direction that is added to the movement of the curtain 10 toward the stop position. For example, in the case of the counter 26 where the curtain 10 is opened, the shift direction of the curtain 1
If the counter 27 is on the side where the curtain 10 is closed, it is added or carried up as the curtain 10 moves in the closing direction.

Each of the above-mentioned counting wheels 40 to 42 and each carry gear 51 to 53
is provided with a setting mechanism for setting the counting state to a predetermined count value set as the above-mentioned opening stop position of the curtain 10, for example, a value of "000".

In other words, as shown in FIG.
A set lever 54... is connected to the position of the swing frame 47 facing each heart cam 45...2, and these set levers 54... are operated when the swing frame 47 is operated to swing , each of the above-mentioned heart cams 45... together with the contact,
The bar 1 to the cams 45 are rotated by the contact pressure, and are provided so as to always come into contact with the regulating positions 55 of the heart cams 45.

In addition, the above-mentioned regulation position 55 is formed with two contact portions or a straight portion that abuts on the lever 54 within a predetermined range, and when the set lever 54 comes into contact with these portions, the heart cam 45 is fixed. Regulated by location.

Then, by rotating the heart cam 45 to this fixed position, the counting state can be set to the setting W1 value that is set as the stop position (positioning) of each counting wheel 40 to 42, that is, the value of "000" in the above example. can.

Angular boss portions 56 are formed in series at each opposing position of each of the above-mentioned girder gears 51 to 53, and these boss portions 5
6..., when the swing frame 47 is operated to swing, it comes into contact with the flat part of the boss portion 56..., and each girder-L gear 5
A leaf spring 57 that maintains a constant posture from 1 to 530 rotational positions...
are provided opposite to each other, and the base ends of the leaf springs 57 are fixed to the support frame 35 described above.

That is, when the swinging operation of the swinging frame 47 is released, the tips of the teeth of the carry gears 51 to 53 and the gear 44 of each counting wheel 40 to 42 are mutually connected to each other. The carry gears 51 to 53 are aligned so that they mesh without contacting each other.

One end of the swing shaft 50 of the swing frame 47 is extended to the outside through a long groove 58 formed in the support frame 35 to allow the swing shaft 50 to swing. The part is the operation piece 5
It is inserted into the guide groove 60 of No. 9.

The above-mentioned operating piece 59 is supported slidably in the vertical direction by a guide member (not shown) provided as appropriate on the above-mentioned support frame 35, and the above-mentioned guide groove 60 allows this operating piece 59 to -L.
When the sliding operation is performed in the opposite direction, the shaft end of the swing shaft 50 is rotated along the guide groove 60.

This rotation causes the swing frame 47 to swing, and the counting wheels 40 to 4
2 is set to the set value.

As shown in FIG.
A recess 63 is formed on the circumferential surface of the counter 26 , and the recess 63 is formed at a position below the counting wheel 42 when the counter 26 is set using the operating piece 59 .

The above-mentioned four parts 63 have a gently inclined surface 64 on the upper side in the rotational direction of the counting wheel 42, and a vertical surface 65 on the lower side that coincides with the radial direction.

A switch lever 66 is provided oppositely to the counting wheel 42 at its lower position, and the base end of the switch lever 66 is pivotally connected to a shaft 67 built on the support frame 35 .

At the intermediate position of the switch lever 66 described above, there is a rotor 68.
is pivotally supported by a pin 69, and this rotor 68 has a pin 69.
A circumferential surface 70 having an axis centered at
(2) The length is set to be shorter than the depth of the four parts 63 of the wheel axle 42.

The rotor 68 is urged by a spring 72 wound around a pin 69 so that its protrusion 71 faces the vertical surface 65 of the four parts 63, and is connected to the switch lever 66. The position is regulated by a stopper 73 provided.

The protrusion 71 of the rotor 68 mentioned above is in sliding contact with the circumferential surface of the normal counting wheel 420, and when this counting wheel 42 rotates in a set direction and faces the recessed portion 63 of the first and second shadow wheel 42, this recessed portion 63
and moves to this counting wheel 42 side.

Furthermore, the above-mentioned protrusion 71 is positioned so that when the counting wheel 42 is set to the set value by the setting operation of the operating piece 59, it fits into the four parts 63 and moves toward the counting wheel 42 side. has been done.

Furthermore, when the above-mentioned protrusion 71 is in the fitted state with the recess 63 of the t1 number wheel 42, when the counting wheel 42 further rotates in the set direction, the protrusion 71 is pushed by the shoulder of the vertical surface 65 of the fourth part 63. is rotated against the spring 72, and as a result of this rotation, the circumferential surface 70 of the rotor 68 comes into sliding contact with the circumferential surface of the splitter wheel 420, and the movable position of the switch lever 66 remains unchanged. Ru.

” - The operation of the rotor 68 is performed by turning off the limit switch 74 (described later) using the recess 63 of the h1 several wheels 42.
Furthermore, even if the recess 63 moves beyond the position of the protrusion 71 due to rotation of the cover 42, the limit switch 74 is prevented from being turned on.

A series of limit switches 74 are provided on the lower surface of the free end of the switch lever 66, and a push button 75 of the limit switch 74 is used to push the switch lever 66.
is biased toward the counting wheel 42 side.

When the projection 71 of the rotor 68 engages with the four parts 63 of the counting wheel 42 and moves, the switch lever 66 turns off the limit switch 74 based on this movement.
The design number is such that when the above-mentioned protrusion 71 is in sliding contact with the circumferential surface of the counting wheel 42, the limit switch 74 is turned on.

The above-mentioned limit switch 74 is connected to the forward/reverse motor 1.
Turn off the curtain opening side drive (for example, forward rotation drive) of 8.
, ON control.

A lever 76 extends upward on the upper surface side of the free end of the switch lever 66, and this lever 76 faces the tongue piece 77 connected to the swing frame 47, and swings. When the movable frame 47 swings based on the set operation, the tongue piece 77 presses down the upper end of the lever 76 to press down the switch lever 66, and this pressing turns on the limit switch 74.

Limit switch 7 based on the pressing operation of this lever 76
The operation No. 4 is useful when setting the stop position of the counter 26 on the open side.

FIG. 6 shows a drive circuit for the above-mentioned forward/reverse motor 18 and the above-mentioned electromagnet 24.
A DC power source 80 is connected in parallel with the coil 78 constituting 4, and a DC power source 80 is connected to each of these elements 18 and 78 so that the polarity is switched and energized by a forward/reverse changeover switch 79. 18.78 normal rotation circuit side, OJ:
The aforementioned counters 26 and 27 are provided on the reverse circuit side and the reverse circuit side, respectively.
Limit switches 74 and 81 operated by
Diodes 82 and 83 are connected in parallel to each of the switches 74 and 81 to conduct current only in one polarity during forward and reverse rotation.

The above-mentioned changeover switch 79 is in the neutral position and the power is turned off.
Operated by FF.

The operation of the curtain opening/closing drive device configured as described above will be explained.

First, the opening and closing positions of the curtain 10 are set, and this setting is performed by the counters 26 and 27.

For example, a case will be described in which a stopping position for opening the curtain 10 is set.

First, by pulling up the operating piece 59, the counter 26 is set, and this operation causes the switch lever 6 to be set.
The protrusion 71 of the rotor 68 of No. 6 faces the four parts 63 of the four number wheels 42 of the highest digit, and the set count value of the counter 26 is set.

Under normal conditions, when the projections 71 of the rotor 68 fit into the four parts 63 of the counting wheel 42, the limit switch 74 is turned OFF.
However, due to the swinging of the swinging frame 47 based on the set operation, the switch lever 66 is pressed down, and the limit switch 7
4 is turned on.

Next, when the forward/reverse selector switch 79 is turned on in the direction in which the curtain 10 is opened, for example, to the forward rotation side, the motor 18 rotates forward and the electromagnet 24 is also turned on at the same time.
The internal gear 21 on the reduction mechanism 17 side is locked,
The output of the motor 42 drives the drive pulley 13 in the direction of opening the curtain 10 via the speed reduction mechanism 16,17.

The curtain 10 is opened by the above operation, so when the curtain 10 is opened to a desired position, for example, a fully open position, the operation piece 59 is pressed down to stop the setting operation of the counter 26.

With this operation, the switch lever 66 is released from being pressed down, and the projections 71 of the rotor 68 are already connected to the four parts 63 of the counting wheel 42.
, the switch lever 66 moves upward, the limit switch 74 is turned off, and the motor 18 is stopped.

Furthermore, the electromagnet 24 is also turned off, the internal gear 21 is also unlocked, the curtain 10 is stopped at the set position, and the setting of the opening side stop position of the curtain 10 is completed.

Further, the closing position of the curtain 10 can be set by operating the counter 27 in the same manner as described above.

Once the stop positions for opening and closing the curtain 10 are set as described above, the curtain 10 can be opened and closed in subsequent use by operating the forward/reverse changeover switch 79 in the forward and reverse directions.

The above-mentioned stop 1 of the curtain 10 during normal use occurs when the protrusions 71 of the rotor 68 fit into the recesses 63 of the g1 number wheel 42 of the highest digit as each counter 26, 27 counts the set count value. Then, the switch lever 66 is moved upward, the limit switches 74.81 are turned off, the motor 18 is stopped, and the curtain 10 is stopped at the open position or the closed position.

When the above-mentioned curtain 10 is opened and closed manually, the curtain 1
With the movement of 0, the drive pulley 13 is rotated and the counters 26 and 27 advance in the opening/closing direction, so that the set values are not deviated and automatic operation by the motor 18 is possible.

In the above-described embodiment, the stop control of the motor 18 at the opening/closing position of the curtain 10 is performed by measuring the amount of movement of the curtain 10 by the counter 2.
The configuration is simplified because the division is performed by 6.27, and when the resulting value reaches the set value, the switches 74 and 81 are operated.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a block diagram of a curtain opening/closing drive device, Fig. 2 is a front view of the counter, Fig. 3 is an exploded perspective view of the counter, and Fig. 4 is a second 5 is a sectional view taken along the line II--II in FIG. 2, and FIG. 6 is an electric circuit diagram. 10... Curtain 13... Drive pulley 18
... Forward/reverse motor 26, 27... Counter
20 - 40,41,42...Counting wheel 74.81...Limit switch N size %J I7')C)

Claims (1)

[Claims] 1. A curtain opening/closing drive device for opening and closing curtains arranged on the left and right sides in opposite directions, wherein a drive pulley for driving the curtains to be opened/closed is connected to a motor output, and the curtain movement amount A curtain opening/closing drive device in which a drive pulley is provided with a counter that counts the amount of rotation of a corresponding drive pulley, and a switch is provided on the counter to control the motor to stop when the count value of the counter reaches a set value.