JPH0455192Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a shutter curtain smoother that smoothly guides a shutter curtain formed by mutually interlocking slats to an unwinding opening.

[Prior Art] Conventionally, in a shutter where a shutter curtain with mutually interlocked slats is unrolled along guide rails on both sides of the opening and rolled up to open and close the opening, the shutter curtain is unrolled and rolled up. As the winding diameter of the winding drum gradually changes, the positional relationship between the shutter curtain wound on the winding drum and the guide rail becomes misaligned. A plurality of roller-shaped smoothers are installed in parallel in the direction of the opening near the unwinding opening of the tar curtain.
A structure has been proposed in which the shutter curtain is smoothly guided to the position of the unwinding opening where the guide rail is located.

However, in the case of a single type smoother that simply uses one roller as this type of smoother, when the slat passes through the roller, the protruding interlock part of the slat rides on the outer periphery of the roller, and the concave surface of the slat When the shutter curtain falls on the outer periphery of the smoother, the shutter curtain vibrates greatly, and this vibration causes the shutter curtain to collide with the guide rail, causing noise.
It had the following drawback.

Therefore, in order to improve the above-mentioned drawback, as shown in FIG. Supporting both rollers 2,
The interlock part 3a of the slat 3 of the shutter curtain 1 is made shallow in the valley between the outer peripheries of the shutter curtain 1.
A double smoother has also been proposed that prevents the surface from dropping significantly.

However, even with this double type smoother,
When the interlock portion 3a of the slat 3 passes through the peak formed by the outer periphery of both rollers 2 (left figure in Figure 5), and when it passes through the valley (right figure in Figure 5)
As a result, the position of the shutter curtain 1 oscillates between a and b, and in addition, it is not possible to respond to gradual changes in the winding direction or unwinding direction of the shutter curtain 1 wound around the winding drum. Even though the vibration and accompanying noise have been reduced compared to the single type smoother, the problem of still occurring remains unsolved.

[Problem to be solved by the invention] The present invention was devised in order to eliminate the drawbacks of the conventional technology in view of the above-mentioned actual situation. An object of the present invention is to provide a shutter curtain smoother that can completely suppress the vibrations of the shutter curtain and wipe out the noise generated by the vibrations.

[Means for Solving the Problems] In order to solve the problems, the technical means adopted by the present invention is to connect a shutter curtain formed by vertically connecting a plurality of slats through an interlock part to the unwinding opening. In the smoother of the shutter curtain, two shafts each supporting a roller of the same diameter are arranged in parallel with a distance between the shafts smaller than the diameter of the roller and equal to the interlock interval. The end of the shaft is supported by each end of a pair of links, side plates are arranged side by side at a predetermined interval on the mounting frame of the smoother, and the center point of each link is rotated on the both side plates. It is characterized by being freely pivotable.

[Operation of the invention] Therefore, according to the invention, when the interlock part of the slat passes the roller at one end of the link when the shutter curtain is unrolled or rolled up, the roller touches the protruding interlock part. When pushed, the link rotates around its axis and is retracted, at the same time pushing the roller at the other end of the link into the concave part of the slat, so that both rollers automatically alternate in accordance with the protruding and concave parts of the slat. Since the shutter curtain can be moved in and out, vibration of the shutter curtain is completely suppressed, and noise caused by collision with the guide rail can be prevented.

[Example] The configuration of the present invention will be described in detail with reference to an example shown in the drawings.

1 to 4, reference numeral 10 denotes a smoother of the present invention, which includes two rollers 11, 11' having the same diameter and both shafts 11a, 11'.
a' are arranged in parallel with an axle distance smaller than the diameter of the rollers 11, 11' and equal to the distance between the interlock portions 3a of the slat 3, and both axle ends are connected to both ends of a pair of rod-shaped links 12. The center point of each link 12, 12 is pivoted to a mounting frame 14 with a pin 13.

The mounting frame 14 has opposing side plates 14a, 1
Elongated holes 15 are formed in each of the elongated holes 15 in arcuate shapes facing each other, and the shafts 11a and 11a' rotate within the elongated holes 15 about the pin 13.

On the other hand, a shutter case 17 is horizontally suspended above the opening 16.
Inside is a shutter curtain 1 wrapped around a winding drum 18.
The winding drum 18 is interlocked with an electric opening/closing machine 19, and by driving the electric opening/closing machine 19 in forward and reverse rotation, the shutter curtain 1 is moved to guide rails 20 which are erected on both sides of the opening 16. ,20
It is configured to guide the user up and down, and to open and close the opening 16. In addition, the guide rails 20, 20
The upper end is formed into a funnel shape with an open top, and a plurality of smoothers 10, 10 are arranged in parallel on an inner lintel 23 near the unwinding opening.

In the configuration as described above, when the shutter curtain 1 is unrolled or rolled up, the interlock portion 3a of the slat 3 is pivotally supported by the link 12 of the smoothers 10, 10, as shown in FIG. 4 (left figure). When passing the outer periphery of the other roller 11, the roller 11 is pushed by the interlock portion 3a, rotates the link 12 around the pin 13, and at the same time pulls in the other roller 11' of the link 12. It will be pushed out to the concave surface portion 3b of the slat 3.

Next, when the interlock portion 3a passes the outer circumference of the extruded roller 11', the roller 11' is retracted and simultaneously extrudes one roller 11 at the other end of the link 12. (Figure 4 right)
Thus, both rollers 11, 11' are connected to the slat 3.
The winding direction or unwinding direction changes at any time between the winding state 21 and the unwinding state 22 of the shutter curtain 1. Even when the shutter curtain 1 is moved, the slat 3 can be smoothly guided to the unwinding port at the appropriate position, and the vibration of the shutter curtain 1 is completely suppressed, preventing collisions with the guide rails 20, 20. Noise is prevented.

[Effects of the invention] In summary, the present invention provides a smoother for a shutter curtain that smoothly guides a shutter curtain formed by vertically connecting a plurality of slats to an unwinding opening via an interlock portion.
Two shafts each supporting rollers of the same diameter,
The shafts are arranged in parallel with a distance between the shafts that is smaller than the diameter of the rollers and equal to the interlock interval, and the ends of the shafts are supported respectively on both ends of a pair of links, and a predetermined interval is set on the mounting frame of the smoother. Since the side plates are arranged side by side and the center points of the above-mentioned links are rotatably pivoted to the both side plates, the rollers forming the smoother are connected to the protruding parts of the slats when unwinding and winding up the shutter curtain. The slats can automatically move in and out alternately according to the concave surface, and even if the winding or unwinding direction of the shutter curtain changes gradually, the slats are always smoothly guided to the unwinding opening in the appropriate position. In addition to completely suppressing the vibration of the shutter curtain passing through the smoother, it also has the extremely useful practical effect of being able to prevent the occurrence of noise due to collision with the guide rail. It is.

[Brief explanation of the drawing]

The drawings show an embodiment of the smoother for a shutter curtain according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a front view of the same, and Fig. 3 is a view of a shutter incorporating the smoother. Rough partial cross-sectional view,
FIG. 4 is an explanatory diagram of the operation, and FIG. 5 is an explanatory diagram of the operation of a conventional double type smoother. In the figure, 1...Shutter curtain, 3...Slat, 3a...Interlock part, 10...Smoother, 11, 11'...Roller, 11a...
Axis, 12...Link, 14...Mounting frame, 14a...
...This is the side plate.

Claims (1)

[Scope of utility model registration request] A shutter curtain smoother that smoothly guides a shutter curtain made up of multiple slats connected vertically via an interlock part to an unwinding opening uses two shafts each supporting a roller of the same diameter. are arranged in parallel with a distance between the shafts that is smaller than the diameter of the roller and equal to the interlock interval, and the ends of each shaft are pivotally supported at both ends of a pair of links, and the smoother is mounted in a predetermined position on the mounting frame of the smoother. A smoother for a shutter curtain, characterized in that side plates are arranged side by side at intervals, and the center points of the links are rotatably pivoted to the side plates.