JP3977734B2 - Roll blind - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roll blind that guides both sides of a screen with guide rails.
[0002]
[Prior art]
As one type of roll blind, there is one in which both sides of a screen suspended from a winding shaft are moved up and down while being guided by guide rails.
[0003]
In the roll blind shown in FIG. 3, both side portions of the screen 3 suspended from the winding shaft 1 are guided by the guide rail 4. In this configuration, the screen 3 is inserted obliquely with respect to the upper end of the guide rail 4, and the winding diameter of the winding shaft 1 changes as the screen 3 moves up and down. There is a problem that the upper end is rubbed and easily damaged.
[0004]
Further, if a guide member for guiding the screen to the guide rail is attached to a support bracket that rotatably supports both ends of the winding shaft, the screen can be guided from directly above the guide rail.
[0005]
However, the vibration of the support bracket due to the rotation of the winding shaft and the vibration of the guide member due to the friction with the screen resonate to generate abnormal noise.
Patent Document 1 discloses a configuration in which a bracket that supports both ends of a take-up shaft and a bracket that is fixed to a mounting surface are connected via a vibration absorber to prevent the generation of abnormal noise from the bracket. Yes.
[0006]
[Patent Document 1]
Japanese Patent No. 3181231 [0007]
[Problems to be solved by the invention]
In the configuration shown in FIG. 3, there is a problem that the screen 3 is rubbed against the upper end of the guide rail 4 and is easily painful.
[0008]
When the guide member that guides the screen to the guide rail is attached to the support bracket, the vibration of the support bracket accompanying the rotation of the take-up shaft and the vibration of the guide member that is in friction with the screen resonate during the lifting operation of the screen. Therefore, there is a problem that abnormal noise occurs.
[0009]
An object of the present invention is to provide a roll blind that can prevent the generation of abnormal noise by a guide member that guides a screen to a guide rail.
[0010]
[Means for Solving the Problems]
According to claim 1, the screen is suspended and supported from a winding shaft rotatably supported by a support bracket, both side edges of the screen are supported by a guide rail so as to be lifted and lowered, and the screen is supported by an opening of the guide rail. In the roll blind having a guide member for guiding the guide member, the guide member is separated from the support bracket , and the guide member and the support bracket are separately attached to the mounting surface. The second guide member is detachable from the first guide member, and only the first guide member is attached to the mounting surface. The shaft can be attached to the support bracket from below.
[0011]
According to a second aspect of the present invention, an anti-resonance material made of a material different from that of the guide member is attached to the end portion of the guide member in sliding contact with the screen.
According to a third aspect of the present invention, the resonance preventing material is attached to the lower end portion of the second guide member.
[0012]
According to a fourth aspect of the present invention, the first and second guide members are made of a metal plate, and the resonance preventing material is made of a synthetic resin.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the roll blind shown in FIG. 1, both ends of a winding shaft 1 are rotatably supported by a support bracket 2, and a screen 3 is suspended from the winding shaft 1. When the winding shaft 1 is rotated in the screen winding direction, the screen 3 is pulled up, and when the winding shaft 1 is rotated in the screen unwinding direction, the screen 3 is lowered.
[0014]
Below the winding shaft 1 and on both sides of the screen 3, guide rails 4 are fixed to a wall surface or the like, and both side edges of the screen 3 are supported on the guide rails 4 so as to be movable up and down.
[0015]
Accordingly, the screen 3 is moved up and down with both side edges supported by the guide rails 4.
The guide rail 4 is installed such that its opening is located directly below the rear edge of the outer peripheral surface of the winding shaft 1.
[0016]
Behind the winding shaft 1, a first guide member 5 separate from the support bracket 2 is disposed over the entire length of the winding shaft 1. The first guide member 5 is formed by bending a metal plate into an angle shape, and its upper side 6 is fixed to a mounting surface common to the support bracket 2 with screws 7 at the rear of the support bracket 2.
[0017]
Therefore, the support bracket 2 and the first guide member 5 are separately fixed to the common mounting surface with screws.
The first guide member 5 is positioned such that a side 8 extending downward from the rear end of the upper side 6 covers the rear of the winding shaft 1, and a second guide member 9 is screwed at the lower end thereof. It is attached. The second guide member 9 is disposed over the entire length of the winding shaft 1 in the same manner as the first guide member 5.
[0018]
The second guide member 9 extends obliquely downward toward the take-up shaft 1 along the outer peripheral surface of the screen wound around the take-up shaft 1, and the lower end portion of the second guide member 9 is the guide rail. 4 is extended to above the opening.
[0019]
A third guide member (resonance preventing material) 11 made of synthetic resin is fitted on the side surface of the second guide member 9 on the winding shaft 1 side.
Then, the screen 3 suspended from the winding shaft 1 is guided to the guide rail 4 through the third guide member 11.
[0020]
In the roll blind constructed as described above, the screen 3 suspended from the take-up shaft 1 is guided in the axial direction of the take-up shaft 1 by the second guide member 9 when the screen is raised and lowered. It is guided from right above to the opening of 4.
[0021]
Further, when the screen 3 is almost unwound, the screen 3 is guided directly from the winding shaft 1 toward the guide rail 4.
During such an elevating operation, the screen 3 is moved up and down while sliding on the third guide member 11, and vibration may occur in the third guide member 11. However, since the third guide member 11 and the second guide member 9 are made of different materials, their natural frequencies are different.
[0022]
Therefore, the vibration of the third guide member 11 is difficult to be transmitted to the second guide member 9.
When installing the roll blind, first, the support bracket and the first guide member 5 are fixed to the mounting surface. Next, as shown in FIG. 2, the take-up shaft 1 around which the screen 3 is wound is lifted between the support brackets 2 from below and is rotatably attached between the support brackets 2.
[0023]
Next, the second guide member 9 fitted with the third guide member 11 in advance is attached to the first guide member 5 with the screw 10.
In the roll blind configured as described above, the following operational effects can be obtained.
(1) The screen 3 can always be guided to the opening of the guide rail 4 from directly above by the first to third guide members 5, 9, 11. Therefore, damage to the screen 3 due to rubbing between the screen 3 and the opening edge of the guide rail 4 can be prevented.
(2) Since the first to third guide members 5, 9, 11 are separated from the support bracket 2 and are separately mounted on the mounting surface, the first to third guide members 5, 9, 11 are provided. A mounting surface having a different natural frequency is interposed between the support bracket 2 and the support bracket 2.
[0024]
Then, the vibration of the support bracket 2 due to the rotation of the winding shaft 1 is not easily transmitted to the first to third guide members 5, 9, 11, and the vibration of the support bracket 2 accompanying the rotation of the winding shaft 1. The resonance with the vibrations of the first to third guide members 5, 9, 11 associated with the lifting and lowering of the screen 3 can be prevented. Therefore, it is possible to prevent the generation of abnormal noise when the screen 3 is moved up and down.
(3) Since the third guide member 11 is formed of a material different from that of the second guide member 9, the third guide member 11 that is in sliding contact with the screen 3, and the second and first guide members 9, 5 are used. Can be prevented.
(4) At the time of installation, with the support bracket 2 and the first guide member 5 attached to the mounting surface, the take-up shaft 1 is lifted and attached between the support brackets 2 from directly below, and then the second and third The guide members 9 and 11 are attached to the first guide member 5.
[0025]
Accordingly, since the take-up shaft 1 can be lifted and attached from directly below, the installation work can be easily performed when the roll blind is installed in a narrow space such as when installed in a blind box. it can.
[0026]
The above embodiment can be modified as follows.
The second guide member 9 may be attached to the first guide member 5 by means other than the screw 10.
-The material of the 3rd guide member 11 is not limited to a synthetic resin, What is necessary is just the material from which the material frequency of the 2nd guide member 9 differs.
If the opening of the guide rail 4 and the lower end of the second guide member 9 are positioned on the axial center side of the take-up shaft 1 from the rear edge of the take-up shaft 1, the screen 3 is moved to the second and third sides. The guide members 9 and 11 can guide the opening of the guide rail 4 from directly above.
[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 prevent the generation of noise due to the guide member that guides the screen to the guide rail.
[Brief description of the drawings]
FIG. 1 is a side view showing a roll blind according to an embodiment.
FIG. 2 is an explanatory view showing an installation operation of a roll blind.
FIG. 3 is a side view showing a conventional example.
[Explanation of symbols]
1 Take-up shaft 2 Support bracket 3 Screen 4 Guide rail 5 Guide member (first guide member)
9 Guide member (second guide member)

Claims (4)

A guide member that suspends and supports the screen from a winding shaft that is rotatably supported by a support bracket, supports both side edges of the screen so as to be movable up and down by a guide rail, and guides the screen to the opening of the guide rail. In a roll blind with
The guide member is separated from the support bracket, the guide member and the support bracket are separately attached to the mounting surface, and the guide member includes a first guide member and a second guide member, The second guide member can be attached to and detached from the first guide member, and the winding shaft can be attached to the support bracket from below with only the first guide member attached to the mounting surface. Roll blinds characterized by that.   2. The roll blind according to claim 1, wherein an anti-resonance material made of a material different from that of the guide member is attached to an end of the guide member in sliding contact with the screen. The roll blind according to claim 2, wherein the anti-resonance material is attached to a lower end portion of the second guide member. The roll blind according to claim 3, wherein the first and second guide members are formed of a metal plate, and the anti-resonance material is formed of a synthetic resin.

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