JP2002106274A - Roll blind operating device - Google Patents

Abstract

(57) [Problem] To provide an operating device which can be easily changed from a right operation to a left operation and can be applied to a large roll blind. A take-up shaft is rotatably supported between a pair of support members, a screen is hung from the take-up shaft, and the take-up shaft is rotated by operation of an operating device to raise and lower the screen. In a roll blind having a biasing device 5 in the winding shaft 3 for applying a rotational force to the winding shaft 3 in the direction of pulling up the screen 4, the operating device supports the fulcrum of the biasing device 5 on one side. A pair of rotational force transmitting means 7a, 8 rotatably supported by a pair of support members, respectively, and capable of transmitting the rotational force to the winding shaft 3 while being secured to the member 2a.
and at least one of the rotational force transmitting means 7a and 8a, and an operating means for rotating the rotational force transmitting means 7a and 8a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating device for raising and lowering a screen of a roll blind.

[0002]

2. Description of the Related Art Conventionally, as one type of roll blind, an operating device for raising and lowering a screen is provided at a right end (hereinafter, right operation) or a left end (hereinafter, left operation) of a winding shaft. Operate the operating device to rotate the winding shaft,
Some screens can be raised and lowered.

In such a roll blind, since the operating device is provided only at one of the right and left ends of the winding shaft, for example, when a roll blind for right operation is attached and furniture or the like is moved, With the right operation, there were cases where it was difficult to raise and lower the screen. In such a case, it is necessary to partially disassemble the right operation roll blind and reassemble it into the left operation roll blind. It was complicated.

Further, it is necessary to prepare right and left operation roll blinds in accordance with the position of the window on which the roll blind is to be mounted, which has caused an increase in manufacturing costs.

In view of this, Japanese Patent Publication No. 3-55638 discloses a configuration in which a holding case for rotatably fixing a winding shaft of a screen and an operating device for winding the screen are independently provided. Have been. In this roll blind, the operating device and the holding case can be connected by a connecting pin or the like, and the operating position is changed to the right or left end of the winding shaft by switching the connecting position of the operating device. It is possible to convert.

The operating device disclosed in Japanese Patent Application Laid-Open No. H8-177350 includes a sprocket having the same shape at both ends of a winding shaft, and a cap for supporting the sprocket and closing both ends of the winding shaft. An operation code is mounted on any of the sprockets, and a cap on the operation code side has a built-in braking member for stopping rotation of the sprocket when the operation of the operation code is stopped.

[0007] To change the operation position from side to side, it is possible to remove the caps at both ends of the winding shaft, replace the operation cord with the other sprocket, and provide a braking member on the other cap.

[0008]

[Problems to be solved by the invention]
In the configuration of the roll blind disclosed in Japanese Patent Publication No. 55638, as described above, the holding case for holding the winding shaft and the operating device are provided separately, so that the operating device is connected to the winding shaft. Additional separate pins are required,
This has led to an increase in manufacturing costs.

[0009] Further, when the operation position is changed from side to side, the necessity of disassembling the roll blind is eliminated, but the pin is required when the winding shaft is connected to the operation device.
There is some trouble in the work.

The operating device disclosed in Japanese Patent Publication No. 3-55638 and Japanese Patent Application Laid-Open No. 8-177350 is a roll having an urging device such as a spring motor for applying a rotational force in a screen pulling direction. The configuration was not applicable to blinds. For this reason, the conventional operating device can be mounted only on a small roll blind having no urging device or the like, and only a limited number of roll blinds can change the operating position from side to side.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the conventional configuration, and an object thereof is to easily switch from right operation to left operation and to a large roll blind. It is another object of the present invention to provide an operating device which can also be applied.

[0012]

According to the present invention, a winding shaft is rotatably supported between a pair of supporting members, a screen is hung from the winding shaft, and the winding shaft is operated by an operation device. A roll blind having a biasing device for rotating the screen so that the screen can be moved up and down, and applying a rotational force in a direction in which the screen is pulled up to the winding shaft within the winding shaft; A pair of rotating force transmitting means rotatably supported by the pair of supporting members and capable of transmitting the rotating force to the winding shaft, with the fulcrum of the device secured to one of the supporting members; Operating means provided on at least one of the torque transmitting means and rotating the torque transmitting means.

According to a second aspect of the present invention, the torque transmitting means is fitted to a pulley rotatably supported by a support shaft of the support member, a pulley and a take-up shaft, and transmits the rotational force of the pulley to the winding shaft. The urging device has one end fixed to the center of the support shaft.

According to a third aspect of the present invention, a cover for covering the rotational force transmitting means is detachable from the support member. In claim 4, the operation means is constituted by an operation code mounted on the pulley, and the cover for covering the pulley on which the operation code is mounted is downwardly positioned so that the operation code can be pulled out. Opened.

According to a fifth aspect of the present invention, the take-up shaft is rotatably supported between the pair of support members, the screen is hung down from the take-up shaft, and the take-up shaft is rotated by operating an operation device, thereby turning the screen. It is possible to move up and down, and within the winding shaft, an urging device that applies a rotational force to the winding shaft in a direction in which the screen is pulled up, and the screen against the rotational force applied by the urging device. In a roll blind having a clutch device for maintaining a desired lowered position, the operating device secures a fulcrum of the urging device on one support member and secures a fulcrum of the clutch device on the other support member. In this state, a pulley rotatably supported by the pair of support members, a pipe cap fitted to the pulley and the take-up shaft, and transmitting a rotational force of the pulley to the take-up shaft, Provided on at least one of over Li was composed of a operation code for rotating the pulley.

According to a sixth aspect of the present invention, the take-up shaft is rotatably supported between the pair of support members, the screen is hung from the take-up shaft, and the take-up shaft is rotated by the operation of an operating device to move the screen. In the roll blind capable of moving up and down, the operating device is fitted to a pair of pulleys rotatably supported by the pair of support members, the pulley and the winding shaft, and the rotational force of the pulley is adjusted to the rotational force of the pulley. It comprises a pipe cap for transmitting to a winding shaft and an operation code provided on at least one of the pulleys and rotating the pulley. A cover for covering the pulley is detachably provided on the pair of support members. The cover for covering the pulley on which the operation code is mounted has an open lower portion so that the operation code can be pulled out.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the roll blind has support brackets 2a and 2b attached to both ends of an attachment frame 1 attached to an upper frame of a window or the like via attachment fittings, and the support brackets 2a and 2b.
The take-up shaft 3 is rotatably supported therebetween. Then, the screen 4 is hung down from the winding shaft 3, and the screen 4 is raised and lowered based on the rotation of the winding shaft 3.

As shown in FIG. 2, the support bracket 2
The one end inside the winding shaft 3 on the side a is provided with the winding shaft 3
A spring motor 5 is provided as an urging device for applying a rotational force in the direction in which the screen 4 is pulled up. The spring motor 5 is constituted by a torsion coil spring 5a. One end of the spring motor 5 is non-rotatably supported by the support bracket 2a, and the other end is fixed to the winding shaft 3.

When the winding shaft 3 is rotated in the direction of lowering the screen 4, the torsion coil spring 5a is charged, and the screen 4 can be pulled up based on the stored force.

As shown in FIG. 3, the support bracket 2
a, a bracket shaft 6a as a support shaft for supporting one end of the spring motor 5 so as to be non-rotatably mounted by a screw or the like so as to be non-rotatable, and a pulley 7a as a rotational force transmitting means is rotated by the bracket shaft 6a. It is provided as possible.

A pipe cap 8a is engaged with the tip of the pulley 7a as the rotational force transmitting means so as not to rotate relative to the pulley 7a.
At one end of the winding shaft 3, as shown in FIG.
It is inserted into the inner peripheral surface of the winding shaft 3. That is, when the pulley 7a is rotated with respect to the bracket shaft 6a, the winding shaft 3 is rotated integrally with the pipe cap 8a.

A cylindrical shaft cover 9 is fitted to the bracket shaft 6a so as to cover the base end of the pulley 7a. This shaft cover 9
Is partially openable and closable.
a from below the bracket shaft 6a.

As shown in FIG.
A known clutch device 10 for maintaining the screen 4 at a desired lowered position against the rotational force applied by the spring motor 5 is provided at the other end of the winding shaft 3 on the side b. You.

The clutch device 10 includes a clutch drum 11 which is non-rotatably supported by the support bracket 2b.
The guide groove 12 formed on the outer peripheral surface of the clutch drum 11 and the inner peripheral surface of the winding shaft 3 are fitted to rotate around the clutch drum 11 integrally with the winding shaft 3. The clutch case 13 includes a clutch ball 13 that moves along the guide groove 12 between the clutch case 13 and the clutch drum 11.

As shown in FIG. 5, the support bracket 2
b, a bracket shaft 6b as a support shaft for supporting the clutch drum 11 in a non-rotatable manner is fixed to the bracket shaft 6b with a screw or the like so as to be non-rotatable. A pulley 7b as a rotational force transmitting means is rotatable on the bracket shaft 6b. Provided.

A pipe cap 8b is engaged with the tip of the pulley 7b as the rotational force transmitting means so as not to rotate relative to the pulley 7b.
At the other end of the winding shaft 3, as shown in FIG.
It is inserted into the inner peripheral surface of the winding shaft 3. The pulley 7
b, an endless operation cord 1 made of a ball chain or the like as operation means for rotating the winding shaft 3
5 is mounted.

A bracket shaft 6a, a pulley 7a, and a pipe cap 8a provided on the support bracket 2a, and a bracket shaft 6b, a pulley 7b, and a pipe cap 8b provided on the support bracket 2b.
And the operation cord 15 can also be mounted on the pulley 7a on the support bracket 2a side.

When the operating cord 15 is operated to rotate the pulley 7b with respect to the bracket shaft 6b, the winding shaft 3 is rotated integrally with the pipe cap 8b. At this time, when the take-up shaft 3 is rotated in the pulling-down direction of the screen 4, the clutch ball 10 moves along the guide groove 12, and the clutch case 13 freely moves around the clutch drum 11. , The screen 4 can be pulled down to a desired position.

When the operation code 15 is released with the screen 4 lowered to a desired position, the clutch ball 1 is released.
4 is engaged with the guide groove 12 and rotation of the clutch case 13 is prevented, so that the screen 4 is maintained at a desired position against the urging force of the spring motor 5. And
By operating the operation code 15 from this state, the screen 4
Is slightly lowered, the engagement between the clutch ball 14 and the guide groove 12 is released, and the screen 4 is pulled up based on the urging force of the spring motor 5.

A pulley cover 16, which can be partially opened and closed, can be attached to the bracket shaft 6b from below the support bracket 2b, similarly to the shaft cover 9. The pulley cover 16 is reduced in width over about a half circumference. Therefore, when the pulley cover 16 is attached to the bracket shaft 6b, as shown in FIG. 1, only the upper portion of the base end of the pulley 7b is covered, and the operation cord 15 can be operated.

Now, with the roll blind operating device constructed as described above, as shown in FIG.
In order to change the operation position from the position where the pulley 5 is mounted on the pulley 7b on the support bracket 2b side, first, the shaft cover 9 and the pulley cover 1 on both sides of the winding shaft 3
Remove 6.

Next, the hooking position of the operation cord 15 is changed to the pulley 7a by straddling the screen 4 hanging from the winding shaft 3 from the pulley 7b. And the support bracket 2
The pulley cover 16 is fitted to the bracket shaft 6a on the side a, and the bracket shaft 6b on the side of the support bracket 2b.
The operating position can be changed by fitting the shaft cover 9 to the shaft.

That is, the pulleys 7 on both sides of the winding shaft 3
After the operation code 15 is mounted on either of the a and 7b,
The pulley cover 16 is fitted on the side having the operation cord 15, and the shaft cover 9 is fitted on the other side.

Therefore, with the roll blind operating device configured as described above, the following operational effects can be obtained. (1) Pulleys 7a and 7b are previously attached to both support brackets 2a,
2b, the operation position can be easily changed from left to right only by changing the hooking position of the operation code 15 to either the pulley 7a or the pulley 7b.

(2) The pulleys 7a and 7b
Since the pipe caps 8a and 8b for rotating the winding shaft 3 based on the rotations of the screens a and 7b are provided, the operation position of the raising and lowering operation of the screen 4 can be performed by either the right operation or the left operation.

(3) Bracket shafts 6a, 6 provided on the support brackets 2a, 2b in a pair on the left and right, respectively.
b, pulleys 7a, 7b, and pipe caps 8a, 8b
Have the same shape. Therefore, an increase in manufacturing cost can be prevented.

(4) To change the operation position from left to right, the shaft cover 9 and the pulley cover 16 are removed to change the hooking position of the operation cord 15, and then the pulley cover 16 is attached to the operation cord 15 side. Shaft cover 9
Only needs to be fitted. That is, the winding shaft 3 and the screen 4
It is not necessary to remove such as, and the operation position can be easily changed left and right.

(5) The pulley without the operation cord 15 is provided with a cylindrical shaft cover 9 which covers the outer peripheral surface of the pulley and can be fitted to the bracket shaft. Therefore, since the pulley is not exposed on the side that is not the operation position, the appearance is not impaired.

(6) Bracket shafts 6a and 6b for supporting the spring motor 5 and the clutch device 10 as urging devices in a non-rotatable manner are provided.
Since the pulleys 7a and 7b are rotatably provided with respect to the rollers a and 6b, the pulleys 7a and 7b can be applied to a large-sized roll blind.

The above embodiment may be modified and embodied as follows. In the above embodiment, the operation cord 15 is provided only on the support bracket 2b side, that is, only on the pulley 7b.
And the pulley 7b may be provided so as to be operable on both sides of the winding shaft 3. In this case, pulley covers 16 are provided on both sides of the winding shaft 3. -In the said embodiment, you may form a support bracket and a bracket shaft integrally. In the above embodiment, the pulleys 7a, 7b and the pipe caps 8a, 8b are integrally formed to form the pulleys 7a, 7b.
b may be inserted into the inner peripheral surface of the winding shaft 3, and the winding shaft 3 may be rotated by the pulleys 7a and 7b. -Although the said embodiment applied to the roll blind which has an urging device, such as a spring motor 5, it can be applied to the roll blind which does not have an urging device.

Next, technical ideas other than the invention described in the claims that can be grasped from the embodiment will be described. (1) In the roll blind operating device according to the second aspect, the pulley and the pipe cap have the same shape on both sides of the winding shaft. With this configuration, an increase in manufacturing cost can be prevented.

(2) In the roll blind operating device according to any one of claims 1 to 5, the support member includes a support bracket and a bracket shaft non-rotatably attached to the support bracket. The bracket shaft has one end of an urging device fixed to the center of the bracket shaft and rotatably supports the pulley.

[0043]

As described in detail above, the present invention can provide an operating device which can be easily switched from right operation to left operation and can be applied to a large roll blind. .

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a roll blind.

FIG. 2 is a sectional view showing an embodiment of a roll blind.

FIG. 3 is an exploded perspective view showing a roll blind operating device.

FIG. 4 is a sectional view showing an embodiment of a roll blind.

FIG. 5 is an exploded perspective view showing a roll blind operating device.

[Explanation of symbols]

 2a, 2b Support member (support bracket) 3 Winding shaft 4 Screen 5 Biasing device (spring motor) 6a, 6b Support member (bracket shaft) 7a, 7b Rotary force transmitting means (pulley) 8a, 8b Rotary force transmitting means ( Pipe cap) 15 Operation means (operation code)

Claims (6)

[Claims] 1. A winding shaft is rotatably supported between a pair of supporting members, a screen is hung down from the winding shaft, and the winding shaft is rotated by an operation of an operation device so that the screen can be raised and lowered. A roll blind having an urging device in the winding shaft for applying a rotational force to the winding shaft in a direction in which the screen is pulled up, wherein the operating device includes a fulcrum of the urging device as one support member; In the secured state, at least one of a pair of rotational force transmitting means rotatably supported by the pair of support members and capable of transmitting the rotational force to the winding shaft, Provided,
An operating device for a roll blind, comprising: operating means for rotating the torque transmitting means. 2. The rotating force transmitting means includes: a pulley rotatably supported by a support shaft of the support member; and a pulley and a winding shaft which are fitted to each other to apply a rotating force of the pulley to the winding shaft. The operating device for a roll blind according to claim 1, wherein the operating device comprises a pipe cap for transmitting, and one end of the urging device is fixed to a center portion of the support shaft. 3. The apparatus according to claim 1, wherein a cover for covering said torque transmitting means is detachable from said support member.
3. The operating device for a roll blind according to any one of claims 1 to 2. 4. The operation means comprises an operation code mounted on the pulley, and the cover for covering the pulley on which the operation code is mounted has a lower portion so that the operation code can be pulled out. An opening is provided.
The operation device for a roll blind according to item 1. 5. A take-up shaft is rotatably supported between a pair of support members, a screen is hung from the take-up shaft, and the take-up shaft is rotated by an operation of an operating device, so that the screen can be raised and lowered. A biasing device for applying a rotational force in a direction in which the screen is pulled up to the winding shaft, within the winding shaft;
A roll blind having a clutch device for maintaining the screen at a desired lowered position against a rotational force applied by the urging device, wherein the operating device includes a fulcrum of the urging device on one of the support members. A pulley rotatably supported by the pair of support members, and the pulley and the take-up shaft being fitted to the pulley while securing the fulcrum of the clutch device to the other support member. An operating device for a roll blind, comprising: a pipe cap for transmitting the rotational force of the pulley to the winding shaft; and an operating code provided on at least one of the pulleys and rotating the pulley. 6. A winding shaft is rotatably supported between a pair of supporting members, a screen is hung from the winding shaft, and the winding shaft is rotated by an operation of an operating device to raise and lower the screen. In the roll blind, the operating device comprises: a pair of pulleys rotatably supported by the pair of support members, respectively; and a fitting unit configured to fit the pulley and the winding shaft to rotate the pulley with the winding shaft. And a control cord provided on at least one of the pulleys for rotating the pulley. A cover for covering the pulley is detachably provided on the pair of support members, The operating device for a roll blind, wherein the cover for covering the pulley on which the cord is mounted has an open lower portion so that the operating cord can be pulled out.