JP2000037284A - Hung sheet opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the rotation resistance of a spiral rotator (spiral rail) by improving the hanging structure of a curtain. SOLUTION: This hung sheet opening/closing device comprises the following rotator 2, guides 1, hanging drivers 3, and hanging driven bodies 4. The rotator 2 extends guide grooves 11 spirally on the periphery of the rotation center line 2a along the rotation center line 2a. The hanging drivers 3 have linked balls 20 engaged with the spiral guide grooves 11 of the rotator 2, and can move supported by the guides 1 along the rotation center line 2a. The hanging driven bodies 4 can move supported by the guides 1 along the rotation center line 2a. A relaxation function is given to the linked balls 20 of the hanging drivers 3 and hanging members 16. A part of the weight of a curtain K is supported by the guides 1 through the hanging driven body 4. Thereby, the curtain K burdens less weight on the rotator 2 to reduce the rotation resistance of the rotator 2, accordingly to reduce the load on the electric motor 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for opening and closing a hanging sheet such as a curtain installed in a factory or the like.

[0002]

2. Description of the Related Art Conventionally, in an electric curtain opening and closing apparatus according to Japanese Patent Publication No. 6-61294, as shown in the drawing of the publication, each lead is provided on the upper surface of a spiral rail 6 which is installed above a rail cover 13. The guides 8 are placed, and the suspension rings 12 are fixed on the respective lead guides 8. When the spiral rail 6 is rotated by the electric motor 2,
The respective lead guides 8 are pushed and the respective suspension rings 12 move so as to approach and separate from each other, and the curtain 9 opens and closes.

[0003]

However, since all of the suspension rings 12 suspend the curtain 9, the total weight of the curtain 9 is reduced by the suspension rings 12 and the lead guides 8.
Therefore, there is a possibility that the rotation resistance of the spiral rail 6 is increased and the load on the electric motor 2 is increased.

An object of the present invention is to improve the suspension structure of a curtain to reduce the rotational resistance of a spiral rotating body (corresponding to the spiral rail 6).

[0005]

The present invention will be described with reference to the reference numerals in the drawings (FIGS. 1 to 5) of the following embodiments. Claim 1
The suspension sheet opening / closing device according to the invention comprises a rotating body (2), a guide body (1), a suspension driving body (3), and a suspension follower (4) described below. In the rotating body (2), the guide groove (11) extends spirally along the rotation center line (2a) around the rotation center line (2a). The guide (1) is provided with a rotation center line (2a) of the rotating body (2).
It extends along. The suspension driving body (3) includes:
It has an interlocking portion (20) that engages with the spiral guide groove (11) of the rotating body (2), and can be moved along the rotation center line (2a) while being supported by the guiding body (1). . The hanging follower (4) can move along the rotation center line (2a) of the rotating body (2) while being supported by the guide body (1).

According to a second aspect of the present invention, there is provided the suspension prime mover (3) according to the first aspect of the present invention,
0) was provided with a buffer function by the buffer members (17, 18). According to a third aspect of the present invention, in the suspension driving body (3) according to the first aspect of the present invention, the following movable member (1) is provided.
5), a buffer member (18), and a suspension member (16). The movable member (15) has the interlocking part (20) and is movably supported by the guide body (1). The buffer member (18) is supported by the movable member (15). The suspension member (16) is movably supported by the movable member (15). The suspension member (16) has a buffer function by the buffer member (18).

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A suspension sheet opening / closing device according to an embodiment of the present invention will be described below with reference to the drawings.

[0008] As shown in FIGS.
This is an electric curtain device, and roughly includes a guide 1, a rotating body 2, a two-wheel suspension driving body 3, and a number of suspension followers 4, which will be described in detail below.

<Guiding Body 1 shown in FIGS. 1 to 3> The guiding body 1 has an elongated cylindrical shape surrounding and surrounding the outer circumference of the rotating body 2 and is provided between mounting plates 5 attached to both walls W. This rotating body 2
Along the rotation center line 2a. On the lower side of the cylindrical guide 1, an elongated opening 6 (rail portion) extends along the rotation center line 2a between adjacent portions of both mounting plates 5.

The horizontal direction along the rotation center line 2a is defined as a left-right direction A, and the horizontal direction perpendicular to the rotation center line 2a is defined as a front-rear direction B. <Rotating body 2 shown in FIGS. 1 to 3> The rotating body 2 includes a flexible shaft 7 and a resin coil 8. As also shown in FIG.
In the flexible shaft 7, a large number of wire cores 9 are bundled in an elongated cylindrical shape, and the outer periphery of the cylindrical wire core 9 is covered with a resin cover 10. The resin coil 8 is spirally wound and fixed on the outer peripheral surface of the resin cover 10 of the flexible shaft 7. The resin coil 8 separates the left and right male threads 8a between the middle and left ends of the flexible shaft 7 and the right male threads 8b between the middle and right ends of the flexible shaft 7. Is formed. The left and right male screw portions 8a,
8b are in reverse screw relationship with each other. This resin cover 10
Outer peripheral surface of the helical coil 8 and both right and left external thread portions 8a and 8b of the spiral coil 8
Thus, the left and right guide grooves 11 are spirally extended along the rotation center line 2a. The flexible shaft 7 has a rotation center line 2
a may be curved.

The left and right bearings 12 are fitted into the cylindrical guide 1 inside the left mounting plate 5 and near the right mounting plate 5 of the left and right mounting plates 5. The rotating body 2 is inserted into the cylindrical guide 1, and is rotatably supported by the left and right bearings 12 at both left and right ends of the flexible shaft 7. An electric motor 13 (drive unit) and a control panel 14 are incorporated in the cylindrical guide 1 near the right mounting plate 5.
The rotating body 2 is rotated by the electric motor 13.

<The right and left suspension driving bodies 3 shown in FIGS. 1 to 3> The left and right suspension driving bodies 3 are adjacent to each other in the direction of the rotation center line 2a of the rotating body 2, and are respectively shown in FIG. As shown in FIG. 2, the movable member 15, the suspension member 16, the upper cushioning member 17 (first cushioning member which is an elastic body), and the lower cushioning member 18 (second cushioning member which is an elastic body) are indicated by * below. have.

* Movable member 15 of both right and left suspension driving bodies 3 The movable member 15 is inserted into the opening 6 of the cylindrical guide body 1 and, as shown in FIG. Is mounted on the front and rear edges of the opening 6 and supported by the cylindrical guide 1 so as to be movable along the rotation center line 2a below the rotation center line 2a. In the movable member 15, a support hole 19 is formed so as to be opened in a vertical direction, and an interlocking ball 20 (interlocking portion) is inserted into the support hole 19 from above.

* Hanging member 16 of both right and left hanging prime movers 3 The hanging member 16 comprises a lever 21 and a U-shaped body 22. This lever 21 is attached to the movable
The movable guide 15 extends obliquely downward from the movable member 15 and is exposed to the outside of the cylindrical guide 1. The U-shaped body 22 is
And surrounds the lower half of the cylindrical guide 1 from below. The suspension member 16 of the left suspension driving body 3 and the suspension member 16 of the right suspension suspension 3 are opposed to each other.

The upper and lower cushioning members 17 and 18 of the right and left suspension driving bodies 3 are fitted with lower cushioning members 18, which are compression coil springs, in the lower halves of the support holes 19. Step 19a
Supported above. An interlocking link 24 is inserted into the lower half of the support hole 19, and an interlocking head 24 a (interlocking portion) formed at the upper end of the interlocking link 24 is mounted on the lower buffer member 18. It is urged upward by elastic force. The interlocking link 24 projects downward from the lower half of the support hole 19 and is rotatably connected to the lever 21 of the suspension member 16. The suspension member 16 is urged upward by the elastic force of the lower buffer member 18 via the interlocking link 24. An upper cushioning member 17, which is a compression coil spring, is inserted into the upper half of the support hole 19 and is supported on an interlocking head 24 a of the interlocking link 24. The interlocking ball 20 is placed on the upper cushioning member 17,
The elastic member 17 is urged upward by the elastic force of the upper buffer member 17 and is engaged with the spiral guide groove 11 of the rotating body 2.

<Each suspended follower 4 shown in FIGS. 1 to 3>
Each of the suspension followers 4 has an annular shape, and is provided between the left suspension prime mover 3 and the left mounting plate 5, and between the right suspension primary mover 3 and the right attachment plate 5, respectively. Independently of the right and left suspension driving bodies 3, they are inserted and supported on the outer periphery of the cylindrical guide body 1 and can move along the rotation center line 2 a of the rotating body 2. .

<Hanging State of Curtain K as Hanging Sheet> U of the hanging member 16 in the left-hand hanging driving body 3
A hook 25 is attached to each of the shape member 22 and the movable member 15, the left mounting plate 5, and each of the suspension followers 4 therebetween, and a left curtain K is attached to each of the hooks 25 by a hook 26.
Hooked through. Further, the U-shaped body 22 of the suspension member 16 and the movable member 1 in the right suspension
Each of the hanging wheels 25 is attached to each of the hanging members 5 and the right-side mounting plate 5 and the suspension followers 4 between them.
5, a right curtain K is hooked via a hook 26.

<Opening and Closing Action of the Opening and Closing Device> * Closed state shown in FIGS. 1 and 3 The left-side suspension driving body 3 and the right-side suspension driving body 3 come closest to each other, and the U-shaped suspension members 16 thereof The body 22 overlaps vertically and the left and right curtains K close to each other, and the left and right hanging followers 4 are separated from each other.

When the electric motor 13 is driven and the rotating body 2 rotates, the interlocking sphere 20 engaged with the left and right guide grooves 11 of the rotating body 2 is used. Is pushed by the spiral coil 8, and the opening 6 of the guide body 1 is opened so that the left-side suspension driving body 3 and the right-side suspension driving body 3 are separated from each other.
Move along. Due to the movement of the left and right suspension driving bodies 3, the left and right curtains K are separated from each other and open, and the left and right suspension followers 4 overlap each other.

When the electric motor 13 is driven to rotate the rotating body 2, the interlocking sphere engaged with the left and right guide grooves 11 of the rotating body 2 is changed to the closed state shown in FIGS. 20 is pushed by the spiral coil 8, and the left-side suspension driving body 3 and the right-side suspension driving body 3 move along the opening 6 of the guide body 1 so as to approach each other. Due to the movement of the right and left suspension driving bodies 3, the left and right curtains K are closed to each other and closed, and the left and right suspension followers 4 are separated from each other.

<Characteristics of the present embodiment>
(Other than the other technical ideas described below). * Only the right and left prime movers 3 in which a part of the curtain K is suspended by the suspending member 16 are engaged with the spiral guide grooves 11 of the rotating body 2 by the interlocking balls 20 and are supported by the guide 1 while the curtain K is being supported. The driven members 4, which also suspend a part of the curtain K, follow the left and right driving members 3 and move with the curtain K while being supported by the guide 1. Therefore, a part of the weight of the curtain K can be applied to the rotating body 2 only through the left and right prime movers 3, but a part of the weight of the curtain K is supported by the guide body 1 through each driven body 4.
Therefore, the weight of the curtain K is less likely to be applied to the rotating body 2 and the rotating resistance of the rotating body 2 is reduced, and the electric motor 13
Load can be reduced.

* The interlocking sphere 20 of the suspension driving body 3 has a buffer function by an upper buffer member 17 and a lower buffer member 18. Therefore, when the pressing force of the rotating body 2 against the spiral guide groove 11 increases, the interlocking sphere 20 moves downward against the elastic force of the upper buffer member 17 and the elastic force of the lower buffer member 18, and It is pressed against the guide groove 11 with an appropriate force. Therefore, the rotation resistance of the rotating body 2 is reduced, so that the load on the electric motor 13 can be reduced. In addition, the rotating force of the rotating body 2 can be smoothly transmitted as the moving force of the suspension driving body 3.

In this case, for the lower buffer member 18,
Since it is necessary to receive the weight of the curtain K and the like, the elastic force is increased, but the elastic force of the upper cushioning member 17 is considerably smaller than the elastic force of the lower cushioning member 18. For this reason, the upper cushioning member 17 mainly performs a cushioning function when the interlocking ball 20 moves downward. Therefore, the downward movement of the interlocking ball 20 does not significantly affect the movement of the suspension member 16.

The suspension member 16 of the suspension driving body 3 has a buffer function by a lower buffer member 18. for that reason,
Even if the suspension driving body 3 collides with another object, the suspension member 16
The lever 21 and the interlocking link 24 move downward against the elastic force of the lower cushioning member 18 so that the shock generated on the suspension member 16 can be cushioned. Accordingly, it is possible to prevent the suspension driving body 3 from being damaged.

In this case, as the interlocking link 24 moves downward, the upper cushioning member 17 and the interlocking ball 20 also move
It moves downward following 4a. That is, when the suspension member 16 moves in the buffering direction, the interlocking ball 20 also moves in the buffering direction.
The interlocking ball 20 and the suspending member 16 are
7 and the lower buffer member 18. for that reason,
The interlocking ball 20 can be separated from the spiral guide groove 11 of the rotating body 2. Therefore, the interlocking sphere 2
The impact force acting on zero can be reduced.

[Other Embodiments] In addition to the above-described embodiments, the present invention may be configured as indicated by * below. * In the above embodiment, the upper cushioning member 17 is omitted, and the interlocking ball 20 is mounted on the interlocking head 24a of the interlocking link 24.
Is placed directly. In this case, the buffer member 18 performs a buffer function for the interlocking ball 20 and the suspension member 16. In this case, as the interlocking link 24 moves down, the interlocking ball 20 also moves down following the interlocking head 24a. That is, the suspension member 1
When the link 6 moves in the buffering direction, the linking ball 20 and the suspension member 16 are connected to the buffering member 18 so that the linking ball 20 also moves in the buffering direction.
Interlock through.

In the above-described embodiment, as shown in FIG. 4, in a region below the horizontal plane H passing through the rotation center line 2a of the rotating body 2, the suspension is performed just below the vertical line passing through the rotation center line 2a. The interlocking sphere 20 of the driving motor 3 is engaged with the spiral guide groove 11 of the rotating body 2, and the hanging motor 3 is supported by the guide 1 and moves along the rotation center line 2 a. I am getting it. That is, the center of the interlocking sphere 20 is located on a vertical line passing through the rotation center line 2a. Instead of this configuration, the center of the interlocking sphere 20 is located on the horizontal plane H in the lower region.

* In an area above the lower area, for example, the center of the interlocking sphere 20 can be positioned directly above a vertical line passing through the rotation center line 2a. Even in this case, a part of the weight of the curtain K is applied to the rotating body 2 only through the left and right prime movers 3, so that the rotating body 2
The weight of the curtain K is hardly applied to the
Rotation resistance is reduced.

In the above embodiment, the interlocking ball 20 and the suspension member 16 are interlocked via the upper buffer member 17 and the lower buffer member 18. Instead of this configuration, only the upper cushioning member 17 acts on the interlocking ball 20 and the suspension member 1
Only the lower cushioning member 18 acts on 6, and the interlocking of the interlocking ball 20 and the suspension member 16 is eliminated.

[Other technical ideas] The technical ideas (other than the claims) that can be grasped from the embodiment will be described together with the effects. (A) The suspension driving body 3 includes the movable member 15 having the interlocking portion (interlocking ball 20) and supported movably with respect to the guide 1, and supported by the movable member 15. Cushion members 17 and 18 and a suspending member 16 movably supported by the movable member 15. The interlocking section (interlocking ball 20) and the suspending member 16 include the cushioning member 1.
7 and 18, a buffering function is provided, and the interlocking section (interlocking ball 20) and the suspension member 16 are connected to the buffering member 1.
2. The apparatus according to claim 1, wherein said apparatus is interlocked via said control means.
4. The suspension sheet opening / closing device according to 4.

That is, when the suspending member 16 moves in the buffering direction, the interlocking section (interlocking ball 20) and the suspending member 16 move so that the interlocking section (interlocking ball 20) also moves in the buffering direction.
It interlocks via 7,18. Therefore, the interlocking portion (interlocking ball 20) can be separated from the spiral guide groove 11 of the rotating body 2.
Therefore, the impact force acting on the interlocking portion (interlocking ball 20) due to the impact generated on the suspension member 16 can be reduced.

(B) In the above-mentioned suspension driving body 3,
A movable member 15 having the interlocking section (interlocking ball 20) and movably supported with respect to the guide 1;
5 supported on the first buffer member 17 and the second buffer member 18
And a suspending member 16 movably supported with respect to the movable member 15. The interlocking section (interlocking ball 20) has a buffer function by a first buffering member 17. Is characterized in that a buffer function is provided by a second buffer member 18, and the interlocking portion (interlocking ball 20) and the suspension member 16 are interlocked via the first buffer member 17 and the second buffer member 18. The hanging sheet opening and closing device according to claim 1.

That is, when the suspension member 16 moves in the buffering direction, the interlocking section (interlocking ball 20) and the suspension member 16 are connected to the first cushioning member so that the interlocking section (interlocking ball 20) also moves in the buffering direction. It interlocks via 17 and the second buffer member 18. Therefore, the interlocking portion (interlocking ball 20) is provided in the spiral guide groove 1 of the rotating body 2.
May be separated from one. Therefore, the impact force acting on the interlocking portion (interlocking ball 20) due to the impact generated on the suspension member 16 can be reduced.

(C) In claim 1 or claim 2, the guide 1 has a tubular shape surrounding and surrounding the outer periphery of the rotating body 2, and the suspension prime mover 3 is provided on the tubular guide 1. The suspension unit (moving ball 20) of the suspension driving body 3 is inserted and fitted in the opening 6 serving as a rail portion, and is supported by the rotating body 2 in the tubular guide 1. The hanging follower 4 is engaged with the spiral guide groove 11 and is movably supported on the outer periphery of the tubular guide 1. Therefore, the rotating body 2 and a part of the suspension driving body 3 are covered by the tubular guide body 1. Therefore, there is less possibility that dust will accumulate on them,
The rotational force of the rotating body 2 can be smoothly transmitted as the moving force of the suspension prime mover 3, and the rotational resistance of the rotating body 2 is reduced, so that the load on the electric motor 13 can be reduced.

(D) In claim 3 or (a) or (b), the guide 1 has a tubular shape surrounding and covering the outer periphery of the rotating body 2, and the movable member 15 of the hanging prime mover 3.
Is an opening 6 as a rail portion provided in the cylindrical guide 1.
The movable member 1 is inserted and fitted so as to be movable.
5 is engaged with the helical guide groove 11 of the rotating body 2 in the tubular guide 1, and the suspension member 16 of the suspension driving body 3 is The suspended follower 4 exposed to the outside of the guide 1 is movably supported on the outer periphery of the tubular guide 1. Therefore, the rotating body 2 and a part of the suspension driving body 3 are covered by the tubular guide body 1. Therefore, there is less danger that dust will accumulate on the electric motor, and the rotational force of the rotating body 2 can be smoothly transmitted as the moving force of the suspension driving body 3, and the rotational resistance of the rotating body 2 is reduced to reduce the electric motor. 13 can be reduced.

(E) In claim 1, claim 2, claim 3, or (a) or (b) or (c) or (d), the suspension driving body 3
Below the rotation center line 2a of the rotating body 2, it is supported by the guide body 1 and can move along the rotation center line 2a. Therefore,
As compared with the case where the suspension driving body 3 is supported by the guide body 1 above the rotation center line 2a of the rotating body 2 and can move along the rotation center line 2a, the curtain K The weight is further reduced, the rotation resistance of the rotating body 2 is further reduced, and the load on the electric motor 13 can be further reduced.

(F) In claim 1 or claim 2 or claim 3 or (a) or (b) or (c) or (d) or (e), the rotating body 2 A flexible shaft 7 capable of bending the center line 2a and a coil 8 spirally wound on the outer peripheral surface of the flexible shaft 7 are provided. And the spiral coil 8. Therefore, the curtain K can be opened and closed not only in a straight line but also in a curved line.

[0038]

According to the suspension sheet opening / closing apparatus of the first aspect of the present invention, the suspension structure of the curtain (K) is improved, so that the weight of the curtain (K) is less likely to be applied to the rotating body (2). As a result, the rotational resistance of the rotating body (2) can be reduced.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the suspension driving body (3) has a buffer function for the rotating body (2), the rotating body ( The rotational force of 2) can be smoothly transmitted as the moving force of the suspension driving body (3).

According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the suspension driving body (3) has a buffer function, the suspension driving body (3) is damaged. Etc. can be prevented.

[Brief description of the drawings]

FIG. 1 is a partially cutaway sectional view showing a closed state in a suspension sheet opening / closing device according to an embodiment.

FIG. 2 is a partially cutaway sectional view showing an open state.

FIG. 3 is a partially cutaway sectional view showing a closed state in the same manner.

FIG. 4 is an enlarged sectional view taken along the line XX of FIG. 1;

FIG. 5 is a partially enlarged sectional view of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Guide body, 2 ... Rotating body, 2a ... Rotation center line, 3 ... Hanging driving body, 4 ... Hanging follower, 11 ... Guide groove, 15 ... Movable member, 16 ... Hanging member, 17 ... Buffer member, 18: buffer member, 20: interlocking ball (interlocking portion).

Claims (3)

[Claims] 1. A rotating body having a guide groove spirally extending along the rotation center line around the rotation center line, a guide body extending along the rotation center line of the rotation body, and the rotating body. A suspension driving member that has an interlocking portion that engages with the spiral guide groove, and is supported by the guide body and can move along the rotation center line; A suspension seat opening and closing device comprising: a suspension follower that can move along a rotation center line. 2. The suspension seat opening / closing device according to claim 1, wherein the suspension motor has a buffering function provided by a buffering member in the interlocking portion. A movable member having the interlocking portion and movably supported with respect to the guide member; a buffer member supported by the movable member; The suspension sheet opening / closing device according to claim 1, further comprising a suspension member movably supported by the member, wherein the suspension member has a buffer function by the buffer member.