JPH07331972A - Roll screen - Google Patents

Abstract

PURPOSE:To prevent such a fear that a first winding stopper has engaged a pipe receiver in time of a screen lifting operation from occurring as well as to make improvements in appearance of the first winding stopper side end of a roll screen. CONSTITUTION:In a first winding stopper 22, a flange part is formed in a side end of its bracket 12, while a rib part 2f is formed in its outer diametral part. A decorative cover 13 being engaged with the rib part 22f and prevented from slipping off from the bracket 12 by being fitted in this bracket 12, while coming into contact with the flange part and making any movement in the axial direction of the first winding stopper 22 restrainable is installed in this bracket 12 free of detachment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll screen.

[0002]

2. Description of the Related Art In a roll screen in which a screen is moved up and down by continuously pulling an operation cord wound around a pulley, the operation load by human becomes large as the screen becomes large. For this reason, some large-sized roll screens have a coil spring built therein to reduce the load. The coil spring has one end fixed to a pipe receiver that rotates integrally with the winding pipe, and the other end fixed to a spring receiver that rotates relative to the winding pipe and rotates integrally with the first winding stopper. The first winding stopper is configured to be engaged with or disengaged from the pipe receiver by moving the stopper in the axial direction. The coil spring is given a predetermined initial winding according to the size of the screen after the product is assembled, that is, after the coil spring is attached to the winding pipe. First, the first winding stopper is moved in the axial direction to release the engagement with the pipe receiver. Then, the winding pipe is pressed by hand so as not to rotate, and the initial winding stopper and the spring receiver integral with the stopper are rotated relative to the pipe receiver by a predetermined amount. As a result, the coil spring is twisted and rotated at the other end while the other end of the coil spring is restrained, so that the coil spring is given a predetermined initial winding. Next, the first winding stopper is moved in the axial direction to engage with the pipe receiver to prevent the first winding from returning. Next, the winding pipe is supported by the bracket, and the engagement between the first winding stopper and the pipe receiver is released.

[0003]

However, the conventional roll screen incorporating the coil spring has the following problems. That is, due to the vibration of the take-up pipe when the screen is raised or lowered, or the impact of the weight bar colliding with the take-up pipe when the screen is completely taken up, a force is applied to the first-winding stopper in the direction of receiving the pipe. The winding stopper may be engaged with the pipe receiver, which may prevent the screen from being raised or lowered. Therefore, in order to restart the raising / lowering operation of the screen, it is necessary to move the first winding stopper in the axial direction to release the engagement with the pipe receiver, which is a troublesome problem. In addition, since the bracket is exposed on the first winding stopper arrangement side of the roll screen, there is a problem that the appearance is not good. The present invention is to solve the above problems.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above problems by restraining the axial movement of the first winding stopper by a decorative cover fitted to a bracket. That is, the roll screen of the present invention is connected to the winding pipe (16) whose both ends are rotatably supported by the bracket (12) and one end side of which can be wound and unwound. Screen (18)
And an operation portion (24) configured to transmit rotation to the winding pipe (16) but not rotation from the winding pipe (16), and a load applied to the operation portion (24). And a coil spring device for reducing the coil spring device. The coil spring device integrally rotates with the main shaft (28, 32) non-rotatably supported by the bracket (12) and the winding pipe (16). A pipe receiver (36, 38) that is rotatably fitted to the main shaft (28, 32) while being operably connected to the main shaft (28, 32) not supported by the bracket (12). A rotatable spring receiver (42) and a coil spring (4) having one end fixed to the pipe receiver (38) and the other end fixed to the spring receiver (42).
4) and the main shaft (28) are restricted from rotating relative to each other, but axial movement is permitted, and the main shaft (2
A first winding stopper (22) capable of switching between a state in which the pipe receiver (36) is integrally connected and a state in which the connection is released by the movement of 8) in the axial direction, A decorative cover that locks the first winding stopper (22) in the axially immovable state by being fitted to the bracket (12) so that the connection with the pipe receiver (36) is released. (13) is detachably provided. Further, the roll screen of the present invention, a winding pipe whose both ends are rotatably supported by a bracket, and a screen whose one end side is connected to the winding pipe in a windable and unwound manner,
A coil spring comprising: an operation portion configured to transmit rotation to the winding pipe but not rotation from the winding pipe; and a coil spring device for reducing a load applied to the operation portion. The device is integrally rotatably connected to the main shaft, which is rotatably supported by the bracket, and rotatably fitted to the take-up pipe, and is rotatably fitted to the main shaft. Relative rotation between the spring receiver and the coil spring, one end of which is fixed to the pipe receiver and the other end of which is fixed to the spring receiver, is constrained, but movement in the axial direction is allowed. By moving the main shaft in the axial direction, it is possible to switch between the state in which it is integrally connected to the pipe receiver and the state in which the connection is released. It has a lid and is fitted to the bracket to lock the first winding stopper in a state where the connection with the pipe receiver is released so that it cannot rotate and cannot move in the axial direction. The decorative cover that is restrained to is detachably provided. The reference numerals in parentheses indicate the corresponding members in the embodiments described later.

[0005]

Operation: The coil spring is first wound in the following manner. First, before attaching the roll screen to the bracket, move the first-winding stopper in the prescribed direction of the spindle to release the connection between the first-winding stopper and the pipe receiver, and make the first-winding stopper and the spindle rotatable together. To Then, the first winding stopper is rotated in a predetermined direction (direction in which the force of the coil spring increases) while manually pressing the winding pipe so as not to rotate. As a result, the main shaft and the spring receiver rotate together with the first winding stopper, so that the other end of the coil spring connected to the spring receiver rotates together with the spring receiver.
On the other hand, one end of the coil spring fixed to the pipe receiver does not rotate because it presses the winding pipe so as not to rotate. As a result, the coil spring is given a predetermined initial winding. After the coil spring is first wound, the first winding stopper is moved in the direction opposite to the predetermined direction of the main shaft to connect with the pipe receiver. In this state,
Non-rotatably attach the spindle to the bracket. Thereby, the roll screen is attached to the bracket. Then, the first winding stopper is moved in the predetermined direction of the main shaft to release the connection with the pipe receiver. Then, the decorative cover is fitted to the bracket. As a result, the movement of the first winding stopper in the axial direction is restricted by the decorative cover. Therefore, due to the vibration of the take-up pipe when moving up and down the screen and the impact of the weight bar colliding with the take-up pipe when the screen is completely taken up,
It is prevented that the first winding stopper moves in the axial direction of the main shaft and is connected to the pipe receiver. Further, since the bracket on the first winding stopper side of the roll screen is covered with the decorative cover, the appearance is improved. Further, in the case of a structure in which the main shaft is rotatably supported by the bracket, the coil spring can be initially wound after the roll screen is mounted on the bracket.
That is, first, the main shaft is rotatably supported by the support member in a state where the first winding stopper and the pipe receiver are engaged with each other.
This attaches the roll screen to the bracket. Then, the first winding stopper is moved in the axial direction of the main shaft to release the engagement between the first winding stopper and the pipe receiver. Then, the first winding stopper is rotated in the predetermined direction while manually pressing the winding pipe so as not to rotate. As a result, since the main shaft and the spring receiver rotate together with the first-winding stopper, the other end of the coil spring is twisted and rotated integrally with the spring receiver, and
Since one end of this is restrained from rotating together with the pipe receiver, a predetermined initial winding is given to this. Then, while holding the first winding stopper by hand so that it does not rotate, fit the decorative cover on the bracket. As a result, the first cover stopper is restrained from moving in the axial direction and restrained from rotating by the decorative cover. For this reason, since the rotation of the main shaft whose relative rotation with respect to the initial winding stopper is restricted is also restricted, the main shaft is rotated by the elastic force of the coil spring via the spring receiver, and the initial winding of the coil spring is returned. Is prevented.
Also in this case, as in the case where the coil screen is first wound and then the roll screen is attached to the bracket, by fitting the decorative cover to the bracket, the first winding stopper and the pipe holder are in use during use. It is possible to prevent the connection between and, and it is possible to improve the appearance of the bracket on the first winding stopper side of the roll screen.

[0006]

EXAMPLE FIG. 1 shows a first example. Reverse "L" to attach roll screen 10 to window frame 11 (see FIG. 6)
The two brackets 12 in the shape of a letter are used to attach these vertical pieces 1
The winding pipes 16 (not shown in FIG. 1) are rotatably supported by 2a. A decorative cover 13 is detachably attached to the vertical piece 12a of the bracket 12 on the left side in FIG. The cushioning members 14 are attached to the horizontal pieces 12b of both brackets 12 on the side facing the take-up pipes 16, respectively. Winding pipe 16
Is connected to one end of the screen 18 so that the screen 18 can be wound and unwound. The winding pipe 16 is provided with an initial winding stopper 22 to be described later at its left end in FIG. 1, and also passes through the vertical piece 12a of the bracket 12 at its right end in FIG. An operation unit 24 is provided so as to project in the rightward direction. The operation portion 24 is provided with a pulley (not shown) configured to transmit rotation to the winding pipe 16 but not to transmit rotation from the winding pipe 16. An operation cord 26 capable of rotationally driving the pulley is wound around the outer circumference of the pulley. Screen 1
The other end side of 8 is connected to the weight bar 20.

FIG. 2 shows a cross-sectional view near the left end of FIG. The first main shaft 28, which constitutes one end side of the main shaft, has a rectangular cross section. A support member is fixed to the vertical piece 12a of the bracket 12. The first spindle 28 is the support member 3
It is non-rotatably supported by 0. In addition, the first spindle 28
2, a first engaging groove 28c and a second engaging groove 28d are formed at predetermined intervals in the axial direction. The first winding stopper 22 is formed on a tubular portion 22a having a rectangular cross section that is fitted to the first main shaft 28 so as to be movable in the axial direction, and on the inner surface of the tubular portion 22a. An engaging protrusion 22b engageable with the mating groove 28d, a disk-shaped side wall 22c projecting from the outer surface of the tubular portion 22a at right angles thereto, and an outer diameter portion of the side wall 22c protruding leftward in FIG. The formed connecting portion 22d having a substantially U-shaped cross section
A flange portion 22e (see FIG. 3) formed on the left end of the outer diameter portion of the connecting portion 22d, and a rib portion formed on the outer peripheral surface of the connecting portion 22d in the axial direction at intervals of 90 degrees in the circumferential direction. 22
f (see FIG. 3) and a spline shaft-shaped engagement portion 22g formed in the inner diameter portion of the coupling portion 22d on the side wall 22c side. The second spindle 32, which constitutes the other end of the spindle,
A large-diameter portion 32b formed at the left end in FIG. 2 and a large-diameter portion 32b formed by forming a shoulder portion from the distal-diameter portion 32a and having a larger diameter than the large-diameter portion 32a. It is formed by forming a shoulder portion from 32b, a medium diameter portion 32c having a smaller diameter than the large diameter portion 32b, and a shoulder portion formed from the medium diameter portion 32c, which is smaller than the middle diameter portion 32c. Small diameter part 32
and d. The second main shaft 32 has a space 32e having a rectangular cross section from the tip diameter portion 32a to the axially intermediate position of the large diameter portion 32b. In addition, the second spindle 32
A space 32f having a circular cross section is formed in the axial direction from the end of the small diameter part 32d side to the space 32e. The space 32e of the second main shaft 32 is the first main shaft 2
8 is fitted from the right end in FIG.
It is connected so as to rotate integrally with a screw 34 inserted into the space 32f from the 2d side end. The first pipe receiver 36, which constitutes one end of the pipe receiver, has a large diameter portion 3 having a diameter larger than that of the winding pipe 16 formed at the left end portion in FIG.
6a and a small diameter portion 36c formed by forming a shoulder portion 36b from the large diameter portion 36a. Large diameter part 36a
Has a space portion formed therein, and an inner peripheral surface thereof is formed with a spline groove-shaped engagement portion 36d capable of engaging with the engagement portion 22g of the first winding stopper 22. Large diameter part 36a
Can be inserted into the connecting portion 22d of the first winding stopper 22. In the first pipe receiver 36, the outer diameter portion of the small diameter portion 36c is fitted so as to rotate integrally with the winding pipe 16, and the inner diameter portion of the small diameter portion 36c is the outer diameter of the tip diameter portion 32a of the second spindle 32. It is rotatably supported by the section. A second pipe receiver 38 that constitutes the other end of the pipe receiver
Has a cylindrical shape with a collar, and the cylindrical portion 38
A protrusion 38c protruding in the outer diameter direction is formed at a position axially spaced from the flange portion 38a of b.
The inner diameter portion of the second pipe receiver 38 is relatively rotatably fitted to the outer diameter portion of the middle diameter portion 32c of the second main shaft 32, and the flange portion 38a of the second pipe bearing 38 contacts the end portion of the large diameter portion 32b. Therefore, the movement to the left in FIG. 2 is restricted. Further, the second pipe receiver 38 has a brim portion 38a.
Is connected to the winding pipe 16 so as to rotate integrally therewith. The cylindrical pipe 40 has a cylindrical shape, and the inner diameter portion of the left end portion thereof in FIG. 2 is fitted to the outer diameter portion of the small diameter portion 32d of the second main shaft 32 so that the cylindrical pipe 40 rotates integrally. It is connected. The left end of the cylindrical pipe 40 in FIG. 2 is in contact with the right end of the intermediate diameter portion 32c in FIG. 2, and the movement of the cylindrical pipe 40 to the left in FIG. 2 is restricted. The spring receiver 42 has a bottomed cylindrical shape. The spring receiver 42 is connected so that the inner diameter portion of the cylindrical portion 42a thereof is fitted to the outer diameter portion of the cylindrical pipe 40 so as to rotate integrally. Further, a protruding portion 42d protruding in the outer diameter direction is formed on the outer diameter portion of the cylindrical portion 42a of the spring receiver 42 near the bottom portion 42b over the entire circumference in the circumferential direction. Also, the spring receiver 4
2 is a projection 4 that projects radially outward from a projecting portion 42d of the cylindrical portion 42a at a position spaced apart by a predetermined distance in the axial direction.
2c is formed. The spring receiver 42 is a support member 46 fitted to the outer diameter portion of the cylindrical portion 42a.
It is supported by the inner diameter portion of the take-up pipe 16 so as to be relatively rotatable. In addition, the protrusion 42d of the spring receiver 42 is in contact with the left end in FIG. 2 on the inner diameter side of the support member 46, and the movement in the right direction in FIG. 2 is restricted. The coil spring 44 includes the second pipe receiver 3
8, the cylindrical pipe 40 and the spring receiver 42 are provided on the outer peripheral surface side thereof, and one end 44a thereof is provided.
Is integrally connected between the flange portion 38a and the protrusion 38c of the second pipe receiver 38, and the other end 44b thereof is integrally connected between the protrusion 42c and the protrusion 42d of the spring receiver 42. . As shown in FIG. 5, the decorative cover 13 includes a “U” -shaped plate portion 13 a and a “U” -shaped frame portion 13.
b, the "U" shaped plate portion 13a and the "U" shaped frame portion 13b
A connecting portion 13c for connecting at a predetermined interval (see FIG. 2)
And are integrally molded. An engaging groove 13d capable of simultaneously fitting the three rib portions 22f of the first winding stopper 22 at the side end portion on the inner peripheral side of the "U" -shaped frame portion 13b.
Three are formed. The "U" -shaped plate portion 13a of the decorative cover 13 is a vertical piece 12a of the bracket 12.
2 adjacent to the left side in FIG. 2, the "U" -shaped frame portion 13b thereof is located adjacent to the flange portion 22e of the first-winding stopper 22 on the right side in FIG. So that the lower end of the vertical piece 12a of the bracket 12 comes into contact with
It is attached to the bracket 12. The first winding stopper 2
2, first spindle 28, second spindle 32, first pipe receiver 3
6, the second pipe receiver 38, the cylindrical pipe 40, the spring receiver 42, and the coil spring 44 constitute a coil spring device.

Next, the operation of the first embodiment will be described. Before attaching the roll screen 10 to the bracket 12, the coil spring 44 is given a predetermined initial winding as follows. That is, first, the first winding stopper 22 is attached to
Move to the center left. As a result, the first winding stopper 22
The engaging protrusion 22b moves from the second engaging groove 28d of the first main shaft 28 over the upper surface of the first main shaft 28 in FIG. 4, and is engaged with the first engaging groove 28c. Connection part 2
2d is a vertical piece 12a of the bracket 12 on the left end surface in FIG.
, And is moved to the position shown by the chain double-dashed line in FIG. Therefore, the engagement between the first-winding stopper 22 and the first pipe receiver 36 is released, and the engaging protrusion 22b of the first-winding stopper 22 is released from the first engaging groove 2 of the first main shaft 28.
8c, the first winding stopper 22 and the first spindle 2 are engaged.
8 and 8 are in a state of being integrally rotatable. Then, the first winding stopper 22 is rotated by a predetermined amount in a predetermined direction while manually pressing the winding pipe 16 so as not to rotate. As a result, the first main shaft 28, the second main shaft 32, the cylindrical pipe 40, and the spring receiver 42 rotate integrally with the first-winding stopper 22, so that the other end 44b of the coil spring 44 connected to the spring receiver 42 is spring-received. It is twisted and rotated integrally with 42. On the other hand, one end 44 a of the coil spring 44 has the winding pipe 16 and the second pipe receiver 38.
And the rotation is restrained. Therefore, the coil spring 44 has its one end side 44a restrained and its other end side 44b twisted and rotated. As a result, the coil spring 44 is initially wound. Next, as shown in FIG. 4, the large diameter portion 36a of the first pipe receiver 36 is inserted into the connecting portion 22d of the first winding stopper 22 to rotate the first winding stopper 22 and the first pipe receiver 36 integrally. Engage state. Next, in this state, the first main shaft 28 is non-rotatably attached to the vertical piece 12a of the bracket 12 by the support member 30. As a result, the roll screen 10 is attached to the bracket 12. Next, the first winding stopper 22 is moved to the position shown by the chain double-dashed line in FIG. Next, as shown in FIG. 6, the vertical piece 12a of the bracket 12 and the flange portion 22e of the first-winding stopper 22 form the “U” -shaped plate portion 13a and the “U” -shaped frame portion 13b of the decorative cover 13. The cosmetic cover 13 is attached to the vertical piece 1 of the bracket 12 so as to be inserted between them.
The vertical piece 12a of the bracket 12 is fitted so as to be pulled upward from below 2a. At this time,
As shown in FIG. 3, the rib portions 22f of the first winding stopper 22 are fitted in the engaging grooves 13d of the decorative cover 13, respectively, so that the decorative cover 13 is prevented from falling off from the bracket 12. Further, since the "U" -shaped frame portion 13b of the decorative cover 13 contacts the flange portion 22e of the first winding stopper 22, the movement of the first winding stopper 22 in the right direction in FIG. 2 is restricted. This allows the screen 18
The vibration of the take-up pipe 16 during lifting and the weight bar 20 causes the take-up pipe 16 to move when the screen 18 is completely taken up.
The first-winding stopper 22 is moved to the position shown in FIG.
It is possible to prevent the movement to the right in the middle direction and the engagement with the first pipe receiver 36. Moreover, since the bracket 12 on the first winding stopper 22 side of the roll screen 10 can be covered with the decorative cover 13, the appearance is improved.

In the first embodiment, the coil spring 44 is first wound before the roll screen 10 is attached to the bracket 12, and then the roll screen 10 is attached to the bracket 12. However, the present invention is not limited to this. Alternatively, the roll screen may be attached to the bracket without first winding the coil spring, and then the coil spring may be first wound. That is, by forming only the shape of the portion of the first main shaft supported by the support member to have a circular cross section, the first main shaft is rotatably supported by the support member, and other structures are the same as those of the first embodiment. It may be similar to the example. The operation of the second embodiment will be described below. First, with the first winding stopper engaged with the first pipe receiver, the first spindle is rotatably supported by the support member. This attaches the roll screen to the bracket. Next, the coil spring is first wound. First,
The first-winding stopper is moved in the axial direction of the first spindle, and the engaging protrusion of the first-winding stopper is engaged with the first engaging groove of the first spindle. Then, the first winding stopper is rotated in a predetermined direction by a predetermined amount while manually pressing the take-up pipe so as not to rotate. As a result, the first spindle, the second spindle,
Since the cylindrical pipe and the spring receiver rotate, the other end of the coil spring is twisted and rotated integrally with the spring receiver, and the one end of the coil spring is restrained from rotating together with the winding pipe and the second pipe receiver. The first roll is given to this. Then, while holding the first winding stopper by hand so that it does not rotate, fit the decorative cover on the bracket. At this time, since the rib portions of the first-winding stopper are fitted in the engaging grooves of the decorative cover, the rotation of the first-winding stopper is restricted. As a result, the rotation of the first main shaft, the second main shaft, the cylindrical pipe, and the spring receiver is restricted, so that the elastic force of the coil spring rotates the first main shaft, the second main shaft, the cylindrical pipe, and the spring receiver, and the coil spring. It is possible to prevent the first roll from returning. Also in the second embodiment,
As in the first embodiment, by fitting the decorative cover to the bracket, the first winding stopper may be engaged with the first pipe receiver during use, and the decorative cover may fall off the bracket. In addition to being able to prevent it, it is possible to obtain an effect that the appearance of the bracket on the first winding stopper side of the roll screen can be improved.

[0010]

According to the present invention, by fitting the decorative cover to the bracket, the decorative cover comes into contact with the flange portion of the first winding stopper to restrain the axial movement of the first winding stopper, and the first winding. By engaging the decorative cover with the rib portion of the stopper, the decorative cover is prevented from falling out of the bracket. As a result, the first winding stopper moves in the axial direction of the main shaft due to the vibration of the take-up pipe when moving up and down the screen, and the impact of the weight bar colliding with the take-up pipe when the screen is completely taken up. It is prevented from engaging with. Further, since the bracket on the first winding stopper side of the roll screen is covered with the decorative cover, the appearance is improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view near the left end of FIG.

3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a view showing a state in which an initial winding stopper and a pipe receiver are connected to each other.

FIG. 5 is a view showing a state in which a decorative cover is removed from a bracket.

FIG. 6 is a partial front view of the roll screen on the first winding stopper side.

[Explanation of symbols]

 12 bracket 13 makeup cover 16 winding pipe 18 screen 22 first winding stopper 22e flange part 22f rib part 24 operation part 28 first spindle (spindle) 32 second spindle (spindle) 36 first pipe receiver (pipe receiver) 38 second Pipe receiver (pipe receiver) 42 Spring receiver 44 Coil spring

Claims (2)

[Claims] 1. A take-up pipe (16) whose both ends are rotatably supported by a bracket (12), and a screen (18) whose one end side is connected to the take-up pipe (16) so that it can be taken up and unwound. And an operation portion (24) configured to transmit rotation to the winding pipe (16) but not rotation from the winding pipe (16) and a load applied to the operation portion (24). And a coil spring device for reducing the coil spring device. The coil spring device integrally rotates with the main shaft (28, 32) non-rotatably supported by the bracket (12) and the winding pipe (16). A pipe receiver (36, 38) that is rotatably fitted to the main shaft (28, 32) while being connected to the main shaft (2) not supported by the bracket (12).
(8, 32) and spring receiver (42) that can rotate integrally with
The relative rotation between the coil spring (44) having one end fixed to the pipe receiver (38) and the other end fixed to the spring receiver (42) and the main shaft (28) is restricted. , The movement in the axial direction is allowed, and the movement in the axial direction of the main shaft (28) switches between the state in which it is integrally connected to the pipe receiver (36) and the state in which the connection is released. In a roll screen (10) having a possible first winding stopper (22), the bracket (12) is fitted to this and the connection with the pipe receiver (36) is released. A roll screen, wherein a decorative cover (13) for restraining the above-mentioned first winding stopper (22) in an axially immovable manner is detachably provided. 2. A take-up pipe whose both ends are rotatably supported by a bracket, a screen whose one end side is connected to the take-up pipe so that it can be taken up and unwound, and rotation can be transmitted to the take-up pipe. In the roll screen, the coil spring device is rotatable with respect to the bracket, and the operation part is configured so that the rotation from the winding pipe cannot be transmitted, and the coil spring device reduces the load applied to the operation part. The main shaft supported by the main shaft, a pipe receiver that is integrally rotatably connected to the winding pipe, and is rotatably fitted to the main shaft, a spring receiver that can rotate integrally with the main shaft, and a pipe receiver on one end side. The rotation of the coil spring, which is fixed to the main shaft and the coil spring whose other end is fixed to the spring receiver, is restrained. However, the movement in the axial direction is allowed, and by the movement of the main shaft in the axial direction, it is possible to switch between the state in which it is integrally connected to the pipe receiver and the state in which the connection is released. It has a first-winding stopper, and by being fitted to the bracket, it locks the first-winding stopper in a state in which the connection with the pipe receiver has been released so that it cannot rotate and it cannot move in the axial direction. A roll screen, characterized in that a decorative cover that can be restrained is provided detachably.