JPH1072984A - Shutter muffler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress play of a shutter curtain at the time of closing the shutter curtain so as to prevent generation of sound. SOLUTION: A keep plate 7 is provided parallel with a guide rail, and keep plate supporting means 6, 8 support the keep plate 7 in such a way as to generate horizontal displacement in association with vertical displacement of the keep plate. An operating lever 9 coming in contact with a throating 4 at the lower end of a shutter curtain is fixed to the lower end of the keep plate 7. When the shutter curtain is closed, the throating 4 comes in contact with the operating lever 9, and the keep plate 7 is pushed down through the operating lever 9. The keep plate 7 is pressed to the shutter curtain by the downward displacement of the keep plate 7 so as to suppress play between the shutter curtain and the guide rail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter silencer which suppresses a gap between a shutter curtain and a guide rail in a closed state of a building shutter to prevent noise caused by vibration of the shutter curtain.

[0002]

2. Description of the Related Art A shutter for a building whose opening is opened and closed by a shutter curtain connected to slats is provided with guide rails on both sides of the opening, and both width ends of the shutter curtain are guided by the guide rail to move up and down. I do.
In addition, a required gap is provided between the guide rail and the shutter curtain so that the shutter curtain can be moved up and down smoothly.

[0003]

Since there is a gap between the guide rail and the shutter curtain as described above,
There is a problem that the shutter curtain makes a noise when the shutter curtain rattles or wind blows. To prevent noise, it is preferable to reduce the gap between the guide rail and the shutter curtain. However, if this gap is reduced, there arises a problem that the shutter curtain cannot be opened and closed smoothly.

[0004] In view of such circumstances, the present invention suppresses rattling of the shutter curtain when the shutter curtain is closed,
This is to prevent noise.

[0005]

According to the present invention, a holding plate is provided in parallel with a guide rail, and support means for the holding plate supports the holding plate so as to generate a horizontal displacement with a vertical displacement. The present invention relates to a shutter silencer in which an operating lever abutting on a drain of a shutter curtain lower end is fixed to a lower end of the presser plate. The present invention also relates to a shutter muffler, wherein the holding means of the holding plate is a long hole formed in the holding plate, a guide pin fitted in the long hole, and a spring for urging the holding plate upward. Still further, the present invention relates to a shutter silencer in which the drainer is covered with a cushioning material.

When the shutter curtain is closed, the drainer abuts on the operating lever and pushes down the holding plate via the operating lever. The holding plate is pressed by the shutter curtain due to the downward movement of the holding plate, thereby suppressing rattling between the shutter curtain and the guide rail. In addition, the shock absorber at the time when the buffer material of the drainer abuts on the floor surface absorbs an impact to prevent an impact sound.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a guide rail provided on the opening side pillar 2, and 3 denotes a shutter curtain guided by the guide rail 1.
The drain 4 is connected to the lower end of the.

A parallel strip-shaped mounting plate 5 is fixed along the guide rail 1, and a parallel link 6 is provided on the mounting plate 5 so as to be swingable. The parallel link 6 is a shutter curtain 3
And a belt-like holding plate 7 is attached to the parallel link 6. Thus, by the swing of the parallel link 6, the presser plate 7 moves up and down and approaches and separates from the mounting plate 5.

[0010] The upper end of the holding plate 7 and the gate side of the opening are connected by a spring 8, and the holding plate 7 is urged upward. An L-shaped operating lever 9 is fixed to the lower end of the holding plate 7 so as to cross the guide rail 1, the operating lever 9 is separated from the floor surface 10 by a required distance, and before the parallel link 6 becomes horizontal. The distance is such that the operating lever 9 is separated from the floor surface 10. A cam piece 11 is fixed to the lower end of the side of the holding plate 7, and a limit switch 12 is provided to face the cam piece 11.

The operation will be described below. FIG. 1 shows a state in which the shutter is closed, and FIG. 2 shows a state in which the shutter is opened.

When the shutter curtain 3 is lowered from the state shown in FIG. 2, the drainer 4 comes into contact with the operating lever 9 immediately before the drainer 4 comes into contact with the floor 10. The weight of the shutter curtain 3 acts on the operating lever 9, and the pressing plate 7 descends against the spring 8. Since the holding plate 7 is supported by the mounting plate 5 by the parallel link 6, the holding plate 7 is pushed out toward the shutter curtain 3 (to the left in the drawing) as it descends. Eventually, the operating lever 9 comes into contact with the ground, but when the operating lever 9 is in contact with the ground, the holding plate 7 also comes into contact with the shutter curtain 3,
It is pushed to the left in the figure, and the rattle between the shutter curtain 3 and the guide rail 1 is suppressed.

Therefore, even if wind pressure or the like acts on the shutter curtain 3, no sound is produced. In addition, immediately before the shutter curtain 3 is completely closed, the pressing plate 7 is pressed down against the spring 8 so that the shutter curtain 3 is pressed.
The spring 8 also absorbs the impact just before closing. Therefore, it is possible to reduce the impact sound when the shutter is closed.

When the holding plate 7 is lowered, the cam piece 11 activates the limit switch 12. The signal of the limit switch 12 is input to the opening / closing controller of the shutter curtain 3, and the driving of the opening / closing motor (not shown) is stopped. The limit switch 12 may be used for checking whether the shutter curtain 3 is closed.

When the shutter curtain 3 is pulled upward, the holding plate 7 is also raised by the force of the spring 8, and is simultaneously separated from the shutter curtain 3. The cam piece 11
Is separated from the limit switch 12, and the limit switch 12 is activated. The lifting operation of the shutter curtain 3 can be performed smoothly by the pressing plate 7 separating from the shutter curtain 3.

Next, FIG. 3 shows another embodiment of the present invention.

An inclined slot 14 is formed in the holding plate 13 at least at two upper and lower portions in parallel, and a guide pin 15 slidably fitted in the slot 14 is erected on the mounting plate 5. is there. Also in this embodiment, when the presser plate 13 is pressed down, the presser plate 13 moves to the left in the drawing. Thus, also in the present embodiment, the shutter curtain 3 is pressed in the horizontal direction by the holding plate 13 in the closed state, and the rattling is suppressed.

FIG. 4 shows still another embodiment.

In the still another embodiment, a cam groove 17 is formed in the pressing plate 16 from the width end side.
The guide pin 15 is fitted to the plate 7 so that the presser plate 16 moves in the horizontal direction when the presser plate 16 moves up and down. Thus, also in the present embodiment, the shutter curtain 3 is pressed in the horizontal direction by the pressing plate 16 in the closed state, and rattling is suppressed.

FIG. 5 shows another embodiment for alleviating the impact sound when the shutter curtain 3 is closed, in which a buffer 18 is wound around the drainer 4. The cushioning member 18 absorbs the impact when the drainer 4 comes into contact with the floor surface 10, so that the impact sound is suppressed, and the cushioning member 18 and the spring 8 reduce the impact when the shutter curtain 3 is closed. Noise is eliminated. When the shutter curtain 3 is closed, the operating lever 9 is interposed between the floor surface and the drainer 4, but a cutout portion 18a of the cushioning material 18 is formed at a position where the operating lever 9 contacts as shown in FIG. Then, no gap is formed between the drainer 4 and the floor surface 10.

Although the limit switch 12 is provided at the lower end of the guide rail 1, it may be provided at the upper end to detect the displacement of the upper end of the holding plate 7. Further, the surface of the holding plate 7 which is in contact with the shutter curtain 3 may be coated with a synthetic resin in order to improve the sliding.

[0022]

As described above, according to the present invention, rattling of the shutter curtain in the shutter closed state can be suppressed without impairing the smoothness of opening and closing of the shutter curtain, and noise due to wind pressure can be prevented. You.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention.

FIG. 2 is an operation explanatory view showing the embodiment of the present invention.

FIG. 3 is an explanatory view of a main part showing another embodiment.

FIG. 4 is an explanatory view of a main part showing still another embodiment.

FIG. 5 is an explanatory view of a main part showing still another embodiment.

FIG. 6 is an essential part perspective view showing a modification of the further embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rail 3 Shutter curtain 4 Drainer 5 Mounting plate 6 Parallel link 7 Holding plate 8 Spring 9 Operating lever 13 Holding plate 14 Long hole 16 Holding plate 17 Cam groove

Claims (4)

[Claims] 1. A holding plate is provided in parallel with a guide rail, and a supporting means of the holding plate supports the holding plate so as to generate a horizontal displacement with a vertical displacement, and a shutter curtain is provided at a lower end of the holding plate. A shutter silencer, wherein an operating lever abutting on a drain at a lower end is fixed. 2. The shutter muffler according to claim 1, wherein said holding means for supporting said holding plate is a spring and a parallel link for urging said holding plate upward. 3. The shutter muffler according to claim 1, wherein said holding means for supporting said holding plate is a long hole formed in said holding plate, a guide pin fitted in said long hole, and a spring for urging said holding plate upward. apparatus. 4. The shutter muffler according to claim 1, wherein said drainer is covered with a cushioning material.