JP2004211299A - Screen guiding device of roll blind - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen guiding device of a roll blind which can surely prevent the a screen from being disconnected from an inner rail. <P>SOLUTION: In the roll blind, guide rails 4 are arranged on both the sides of the screen 3; both side edges of the screen 3 are ascendably/descendably supported by the inner rail 6 which is arranged in the guide rail 4; a guide member 12 for guiding the side edge of the screen 3 into the inner rail 6 is mounted at the upper end of the inner rail 6; and a reinforcing part 13 for reinforcing strength for supporting the screen 3 is provided in the guide member 12. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll blind screen guide device for guiding both sides of a screen with guide rails.
[0002]
[Prior art]
As one type of roll blind, there is a type in which a screen suspended from a winding shaft moves up and down while being guided by guide rails on both sides.
[0003]
In such a roll blind, an inner rail is provided in the guide rail, and the side edge of the screen is supported by the inner rail so as to be movable in the vertical direction. Further, the inner rail is supported to be slightly movable in the width direction of the screen with respect to the guide rail, and the screen is loosely supported between the guide rails.
[0004]
In the roll blind configured as described above, fasteners are sewn to both side edges of the screen, and the fasteners are inserted into the inner rails, so that the screen is supported along the inner rails.
[0005]
Patent Literature 1 discloses a configuration in which an upper end portion of an inner rail is tapered to facilitate insertion of a fastener into the inner rail.
[0006]
[Patent Document 1]
7-14626
[0007]
[Problems to be solved by the invention]
In the inner rail as described above, the strength of the upper end portion which is opened in a tapered shape is reduced. Then, when the center part of the screen is pushed and the fastener part is pulled toward the center part of the screen, the fastener part comes off from the inner rail at the upper end part of the inner rail, and this causes the fastener part to move downward. It may come off sequentially.
[0008]
An object of the present invention is to provide a screen guide device for a roll blind that can reliably prevent the screen from coming off the inner rail.
[0009]
[Means for Solving the Problems]
According to claim 1, a guide rail is provided on both sides of the screen, and in a roll blind in which both side edges of the screen are supported to be able to move up and down by inner rails provided in the guide rail, at an upper end of the inner rail, A guide member for guiding a side edge portion of the screen into the inner rail is attached, and the guide member has a reinforcing portion for reinforcing the support strength of the screen.
[0010]
In claim 2, the reinforcing portion has a screen supporting strength larger than a screen supporting strength by the inner rail.
According to the third aspect, fasteners are sewn to both side edges of the screen, a cylindrical portion and an opening groove are provided on the inner rail to movably support the fastener, and the fastener is moved to the guide member. The reinforcing portion is formed by providing a cylindrical portion for supporting as much as possible and an opening groove, and making the thickness of the cylindrical portion of the guide member larger than the thickness of the cylindrical portion of the inner rail.
[0011]
According to claim 4, a spring member for elastically supporting the inner rail in the width direction of the screen with respect to the guide rail is attached to the inner rail, and the guide member has a movable range of the guide member. A regulating means for regulating within the guide rail is provided.
[0012]
According to the fifth aspect, the tubular portion of the guide member is provided with a slope for guiding the fastener to the tubular portion and the opening.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings. In the roll blind shown in FIG. 4, both ends of a take-up shaft 1 are rotatably supported by a support bracket 2, and a screen 3 is suspended from the take-up shaft 1 so as to be able to move up and down.
[0014]
Both side edges of the screen 3 are vertically movably supported by guide rails 4 formed of extruded members. Accordingly, the screen 3 is moved up and down along the guide rails 4 with the rotation of the winding shaft 1.
[0015]
As shown in FIG. 1, fasteners 5 are sewn to both side edges of the screen 3. As shown in FIG. 2, an inner rail 6 formed of a synthetic resin is provided in the guide rail 4 over its entire length.
[0016]
A tubular portion 7 is formed at the tip side of the inner rail 6, and an opening groove 8 is formed at the tip side of the tubular portion 7. Then, the fasteners 5 on both sides of the screen 3 are inserted into the cylindrical portion 7 and the opening groove 8 from the upper end of the inner rail 6. The fastener 5 cannot be pulled out of the opening groove 8 in the width direction of the screen 3.
[0017]
Therefore, both side edges of the screen 3 are supported by the inner rail 6 so as to be movable only in the vertical direction. On the base end side of the inner rail 6, a wedge-shaped projection 9 is formed.
[0018]
The base end of a spring member 10 is fitted to the ridge 9 of the inner rail 6 at a plurality of locations of the inner rail 6. The distal end of the spring member 10 extends obliquely upward on both sides of the inner rail 6 and engages with a locking groove 11 provided on the inner side surface of the guide rail 4.
[0019]
Therefore, when the central portion of the screen 3 is pressed, the inner rail 6 is pulled toward the central portion of the screen 3 from the state shown in FIG. 1, and as shown in FIG. It will be open. In this state, the spring member 10 applies an urging force to pull the screen 3 back.
[0020]
A fastener guide member 12 is attached to the upper end of the inner rail 6. As shown in FIG. 1, the fastener guide member 12 is formed with a tubular portion 13 similar to the inner rail 6 and an opening groove 14, and the fastener 5 is inserted through the tubular portion 13 and the opening groove 14. It is designed to be guided inside the inner rail 6.
[0021]
The thickness of the cylindrical portion 13 is formed to be thicker than the thickness of the cylindrical portion 7 of the inner rail 6 to form a reinforcing portion having sufficient mechanical strength. A mortar-shaped slope 15 for guiding the fastener 5 into the cylindrical portion 13 and the opening groove 14 is formed around the cylindrical portion 13.
[0022]
Flanges 16 are formed on both sides of the tubular portion 13 of the fastener guide member 12 as regulating means. When the fastener guide member 12 is pulled by the screen 3 and moves, as shown in FIG. 3, the flange portion 16 is protruded to a position where it comes into contact with a rib 17 forming the locking groove 11.
[0023]
In the screen guide device configured as described above, both sides of the screen 3 are guided to the guide rails 4 via the inner rails 6 when the screen is lifted and lowered. Therefore, the screen 3 is moved up and down with both side edges supported by the guide rails 4.
[0024]
When the center of the screen 3 is pushed, the inner rail 6 is pulled toward the center of the screen 3, and as shown in FIG. 3, the flange 16 of the fastener guide member 12 comes into contact with the rib 17 and is moved in the same direction. Further movement to is blocked.
[0025]
When the central portion of the screen 3 is no longer pushed, the screen 3 returns to the state shown in FIG.
With the screen guide device of the roll blind configured as described above, the following operation and effect can be obtained.
(1) The fastener 5 can be easily inserted into the inner rail 6 by the fastener guide member 12 attached to the upper end of the inner rail 6.
(2) Both side edges of the screen 3 can be supported on the guide rail 4 via the inner rail 6 so as to be able to move up and down.
(3) When the fastener guide member 12 and the inner rail 6 are pulled toward the center of the screen 3, the strength of the tubular portion 13 of the fastener guide member 12 is sufficiently higher than that of the tubular portion 7 of the inner rail 6. As a result, the fastener 5 does not come off the fastener guide member 12. Therefore, the screen 3 does not come off the upper end of the inner rail 6 sequentially.
(4) When the fastener guide member 12 is pulled toward the center of the screen 3, the flange portion 16 contacts the rib 17 and prevents further movement, so that the fastener guide member 12 is exposed from the guide rail 4. Never.
(5) The fastener 5 of the screen 3 can be smoothly guided into the cylindrical portion 13 and the opening groove 14 by the slope provided on the cylindrical portion 13 of the fastener guide member 12.
[0026]
The above embodiment can be modified as follows.
The shapes of the flange 16 and the rib 17 may be arbitrarily changed as long as the same action can be obtained.
[0027]
【The invention's effect】
As described in detail above, the present invention can provide a screen guide device for a roll blind that can reliably prevent the screen from coming off the inner rail.
[Brief description of the drawings]
FIG. 1 is a plan view showing a screen guide device according to an embodiment.
FIG. 2 is an exploded perspective view showing a screen guide device.
FIG. 3 is a plan view showing the operation of the screen guide device.
FIG. 4 is a side view showing a roll blind.
[Explanation of symbols]
3 screen 4 guide rail 6 inner rail 12 guide member (fastener guide member)
13 Reinforcing part (tubular part)

Claims (5)

In a roll blind in which guide rails are arranged on both sides of the screen, and both side edges of the screen are supported to be able to move up and down by inner rails arranged in the guide rails,
A guide member that guides a side edge of the screen into the inner rail is attached to an upper end of the inner rail, and the guide member includes a reinforcing portion that reinforces the support strength of the screen. Roll blind screen guide device. The screen guide device for a roll blind according to claim 1, wherein the reinforcing portion has a screen supporting strength greater than a screen supporting strength by the inner rail. Fasteners are sewn on both side edges of the screen, a cylindrical portion and an opening groove are provided on the inner rail so as to movably support the fastener, and a tube is provided on the guide member so as to movably support the fastener. The reinforcing portion is formed by providing a cylindrical portion and an opening groove, and making the thickness of the cylindrical portion of the guide member larger than the thickness of the cylindrical portion of the inner rail. 2. A screen guide device for a roll blind according to item 2. A spring member for elastically supporting the inner rail in the width direction of the screen with respect to the guide rail is attached to the inner rail, and a movement range of the guide member is restricted to the guide rail within the guide rail. The screen guide device for a roll blind according to any one of claims 1 to 3, further comprising a restricting means for performing the operation. The screen guide device for a roll blind according to claim 3, wherein an inclined surface for guiding the fastener to the cylindrical portion and the opening groove is provided in the cylindrical portion of the guide member.

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