JP2002349160A - Blocker lift of sunlight blocking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blocker lift of a sunlight blocking device capable of preventing lift cords from sagging when raising or lowering a bottom rail and an intermediate rail. SOLUTION: In the sunlight blocking device, a bottom rail 5 and an intermediate rail 3 are suspended and supported from a head box 1 via lift cords 6a and 6b, an upper blocker 2 is disposed between the head box 1 and the intermediate rail 3, a lower blocker 4 is disposed between the intermediate rail 3 and the bottom rail 5, and the lift cords 6a and 6b are operated using operating devices 7a, 7b, 10 and 11 to enable the bottom rail 5 and the intermediate rail 3 to be raised and lowered. The lift cords 6a and 6b are guided from the head box 1 to the intermediate rail 3, wound around the intermediate rail 3, then guided to and wound around the head box 1, and connected to the bottom rail 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar shading device that suspends and supports an intermediate rail and a bottom rail from a head box and raises and lowers the intermediate rail or the bottom rail so that the solar shading material can be raised and lowered. It is.

[0002]

2. Description of the Related Art There is the following type of pleated curtain. An upper screen capable of being bent in a zigzag shape is suspended from the head box, and an intermediate rail is attached to a lower end of the upper screen.

A lower screen which can be bent in a zigzag manner from the intermediate rail is suspended and supported, and a bottom rail is attached to a lower end of the lower screen. The bottom rail is suspended from the headbox, and is suspended and supported by a first lifting cord inserted through the upper screen, the intermediate rail, and the lower screen, and the upper end of the first lifting cord rotates in the headbox. It is wound on a take-up shaft that is supported as possible.

[0004] The winding shaft is driven to rotate by operating an operation chain suspended at one end of the head box. Therefore, the bottom rail can be moved up and down by operating the operation chain.

[0005] The intermediate rail is suspended from a head box and suspended and supported by a second lifting / lowering cord inserted into the upper screen. Through the device, it is hung outside the headbox.

The intermediate rail can be pulled up by pulling out the second lifting / lowering cord from the head box. By pulling the second lifting / lowering cord into the head box based on the weight of the intermediate rail, the intermediate rail can be lifted. Lowering operation is possible.

[0007]

In the pleated curtain constructed as described above, the bottom rail is pulled up,
By pushing up the intermediate rail by the bottom rail, when the upper screen is folded toward the head box, the second lifting cord inserted through the upper screen is loosened.

[0008] Then, the loosened second lifting cord is exposed from the folded upper screen, and the aesthetic appearance is impaired. Further, when the intermediate rail is lowered from this state to expand the upper screen, the loosened second lifting cord may be caught in the insertion hole of the upper screen, which may hinder the lowering operation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shielding member lifting / lowering device for a solar radiation shielding device capable of reliably preventing a lifting / lowering cord from being loosened when lifting / lowering a bottom rail and an intermediate rail.

[0010]

According to the present invention, a bottom rail and an intermediate rail are suspended and supported from a head box via a lifting cord, and an upper shielding member is disposed between the head box and the intermediate rail. Arranging a lower shielding material between the intermediate rail and the bottom rail, and operating the elevating cord with an operating device, the solar radiation shielding device capable of raising and lowering the bottom rail and the intermediate rail,
The elevating cord was guided from the head box to the intermediate rail, mounted on the intermediate rail, then guided to the head box, mounted on the head box, and then connected to the bottom rail.

According to a second aspect of the present invention, the operation device includes an operation chain suspended from the head box, a drive shaft rotated based on the operation of the operation chain, and the head driven based on the rotation of the drive shaft. And a winding pipe capable of winding or unwinding the lifting cord in the box.

According to a third aspect of the present invention, the operating device allows the lifting cord to be pulled out from one side of the head box,
Alternatively, the lifting / lowering cord guide means is configured to be able to draw the lifting / lowering cord into one side of the head box based on the weight of the intermediate rail or the bottom rail.

According to a fourth aspect of the present invention, the elevating cord is mounted on a moving pulley in the intermediate rail and on a fixed pulley in the head box. In a fifth aspect, a lower limit position setting means for setting a lower limit position of the bottom rail is provided, and when the bottom rail reaches the lower limit position, the intermediate rail can be moved up and down by the operating device, and the intermediate rail reaches the upper limit. When lifted, the bottom rail can be raised.

[0014]

FIG. 1 shows an embodiment of a pleated curtain embodying the present invention. An upper screen 2 is suspended from the head box 1, and an intermediate rail 3 is attached to a lower end of the upper screen 2.

A lower screen 4 is suspended from the intermediate rail 3, and a bottom rail 5 is attached to a lower end of the lower screen 4. The intermediate rail 3 and the bottom rail 5 have substantially the same weight.

The bottom rail 5 and the intermediate rail 3 are
It is raised and lowered by a pair of common lifting codes 6a and 6b. One ends of the elevating cords 6a, 6b are wound around winding pipes 7a, 7b rotatably supported in the head box 1, respectively.

The lifting cords 6a and 6b are guided downward from the winding pipes 7a and 7b through the upper screen 2 and are supported by the intermediate rail 3 for pulleys 8a and 8b.
Through the upper screen 2 again and guided to the head box 1.

Then, it is guided downward again through the pulley 9 supported in the head box 1, and the upper screen 2,
It passes through the intermediate rail 3 and the lower screen 4 and is attached to the bottom rail 5.

A drive shaft 10 is inserted into the center of the winding pipes 7a and 7b. The drive shaft 10 is driven to rotate by operating an operation chain 11 hanging down from the right end of the head box 1. You.

Accordingly, the operation of the operation chain 11 rotates the winding pipes 7a and 7b via the drive shaft 10,
The elevating cords 6a, 6b are spirally wound or unwound on the winding pipes 7a, 7b, and the bottom rail 5 or the intermediate rail 3 is raised and lowered.

The right end of the drive shaft 8 has a speed adjusting device 1
2 and a stopper unit 13 are attached. The speed adjusting device 12 controls the rotation speed of the drive shaft 10 to be equal to or less than a predetermined value, and sets the elevating speed of the bottom rail 5 and the intermediate rail 3 to be equal to or less than a predetermined value.

The stopper unit 13 prevents the weight of the bottom rail 5 and the intermediate rail 3 from falling due to the weight of the bottom rail 5 and the intermediate rail 3. It operates to prevent self-weight drop based on the weight.

In the pleated curtain constructed as described above, when the operating chain 11 is operated, the lifting cords 6a and 6b are wound around the winding pipes 7a and 7b,
Alternatively, the bottom rail 5 or the intermediate rail 3 is moved up and down by being unwound from the winding pipes 7a and 7b.

In the state shown in FIG. 1, the bottom rail 5 is in contact with the floor surface or the like and is lowered to the lowermost limit.
From this state, when the operation chain 11 is operated to rewind the lifting cords 6a, 6b from the winding pipes 7a, 7b,
As shown in FIG. 2, the intermediate rail 3 descends, the upper screen 2 is stretched, and the lower screen 4
Is folded between the intermediate rail 3 and the bottom rail 5.

When the operating chain 11 is operated from the state shown in FIG. 2 to wind the elevating cords 6a, 6b around the winding pipes 7a, 7b, the pulleys 8a, 8b act as moving pulleys. The intermediate rail 3 is lifted without the rail 5 being lifted, and the upper screen 2 is folded in the vicinity of the headbox 1 as shown in FIG. 3 through the state shown in FIG. 5, the lower screen 4 is stretched.

When the lifting cords 6a, 6b are further wound around the winding pipes 7a, 7b from this state, the intermediate rail 3 cannot be raised any further.
Is raised.

Then, through the state shown in FIG. 4, as shown in FIG. 5, the bottom rail 5 is pulled up to the vicinity of the intermediate rail, and the lower screen 4 is folded. When the lifting cords 6a and 6b are rewound from the state shown in FIG. 5, the state shown in FIG. 2 is obtained through the states shown in FIGS. 4, 3, and 1.

With the pleated curtain configured as described above, the following operational effects can be obtained. (1) When the intermediate rail 3 and the bottom rail 5 are raised and lowered, the lifting cords 6a and 6b are maintained in a tensioned state in any case. Therefore, when the intermediate rail 3 and the bottom rail 5 are lifted and lowered, the lifting cords 6a and 6b can be prevented from being loosened and the exposure from the upper screen 2 and the lower screen 4 can be prevented, so that the appearance can be improved. . (2) By operating the common operation chain 11, all the lifting and lowering operations of the upper screen 2 and the lower screen 4 can be performed. (3) By operating the common operation chain 11, a state where the window is almost completely closed on the upper screen 2, a state where the window is almost completely closed on the lower screen 4, and a state where the window is closed on the upper screen 2 and the lower screen 4. A state in which the window is fully closed and a state in which the window is fully opened can be arbitrarily selected.

The above embodiment can be modified as follows. By making the cushioning material such as rubber abut on the floor surface on the lower surface of the bottom rail 5, when the bottom rail 5 abuts on the floor surface, it is possible to prevent the generation of collision sound. Pull out the lifting / lowering cords 6a, 6b from one side of the head box 1, pull up the intermediate rail 3 or the bottom rail 5, and put the lifting / lowering cords 6a, 6b inside the head box 1 based on the weight of the intermediate rail 3 or the bottom rail 5. Into the middle rail 3 or bottom rail 5
Can be applied to a pleated curtain that lowers the angle. -The above embodiment can also be applied to a horizontal blind in which a large number of slats are suspended and supported between the head box and the intermediate rail and between the intermediate rail and the bottom rail. -The above embodiment can also be applied to a lift-up curtain in which a curtain material is suspended and supported between the head box and the intermediate rail and between the intermediate rail and the bottom rail.

[0030]

As described above in detail, the present invention can provide a shielding member lifting and lowering device of a solar radiation shielding device which can surely prevent the lifting cord from being loosened when lifting and lowering the bottom rail and the intermediate rail.

[Brief description of the drawings]

FIG. 1 is a front view showing a pleated curtain according to an embodiment.

FIG. 2 is a front view showing the operation of the pleated curtain.

FIG. 3 is a front view showing the operation of the pleated curtain.

FIG. 4 is a front view showing the operation of the pleated curtain.

FIG. 5 is a front view showing the operation of the pleated curtain.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head box 2 Upper shielding material (upper screen) 3 Intermediate rail 4 Lower shielding material (lower screen) 5 Bottom rail 6a, 6b Elevating cord 7a, 7b Operating device (winding pipe) 10 Operating device (drive shaft) 11 Operating device (Operation chain)

Claims (5)

[Claims] 1. A bottom rail and an intermediate rail are suspended from a head box via an elevating cord, and an upper shielding member is disposed between the head box and the intermediate rail. By arranging a lower shielding material in between and operating the lifting cord with an operating device,
In the solar shading device capable of raising and lowering the bottom rail and the intermediate rail, the lifting cord is guided from the head box to the intermediate rail, mounted on the intermediate rail, and then guided to the head box, A shielding material lifting / lowering device for a solar radiation shielding device, which is mounted and then connected to the bottom rail. 2. The operation device, comprising: an operation chain hanging from the head box; a drive shaft rotated based on operation of the operation chain; and a drive shaft rotated based on rotation of the drive shaft. 2. The apparatus for raising and lowering a shielding material of a solar shading apparatus according to claim 1, further comprising a winding pipe capable of winding or rewinding the lifting cord. 3. The lifting / lowering cord, wherein the lifting / lowering cord can be pulled out from one side of the head box, or the lifting / lowering cord can be pulled into one side of the head box based on the weight of the intermediate rail or the bottom rail. The shielding material lifting / lowering device for a solar radiation shielding device according to claim 1, wherein the shielding material lifting / lowering device is constituted by a guide means. 4. The apparatus according to claim 1, wherein the lifting cord is mounted on a movable pulley in the intermediate rail, and is mounted on a fixed pulley in the head box. Shielding material elevating device for solar shading device. 5. A lower limit position setting means for setting a lower limit position of the bottom rail, wherein when the bottom rail reaches the lower limit position, the intermediate rail can be moved up and down by the operating device, and the intermediate rail is moved up to the upper limit. The shielding material lifting / lowering device for the solar radiation shielding device according to any one of claims 1 to 4, wherein the bottom rail is capable of being raised when pulled up.