JPS6349509Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a descending regulation structure in a horizontal opening opening/closing device for opening and closing a horizontal opening in a floor of a second floor or the like.

Generally, in buildings such as factories and warehouses, the floor of the second floor is opened to form a horizontal opening, the upper and lower floors are communicated through the horizontal opening, and a crane or the like is used to open the horizontal opening. There are devices designed to carry cargo in and out, but this type of horizontal opening needs to be closed when cargo is not being transported, etc., for air conditioning, noise isolation, etc. Therefore, conventional opening/closing devices for horizontal openings have been proposed that consist of shutter curtains running on horizontal rails installed opposite to each other on both edges of the horizontal opening. The shutter curtain itself was constructed by using a regular single-piece shutter curtain for the upper and lower openings, and the shutter curtain was provided with rollers for running on a horizontal rail.
The weight of the shutter curtain itself becomes heavy, and when the horizontal opening is closed, the shutter curtain warps greatly. Even if reinforcing members are provided, the inner diameter is limited to about 3 m, so it cannot be used for wide horizontal openings. There were some drawbacks that I couldn't overcome. Therefore, a plurality of upper and lower guide rails are provided in an inclined manner, and independent horizontal slats are supported on each of the guide rails, so that the horizontal slats can move step by step toward the closed side by their own weight to open the horizontal opening. There has been an attempt to make the horizontal slats closed so that they can be installed even in wide horizontal openings, but in order to open each independent horizontal slat at the same time, the horizontal slats at the closed end are equipped with a It is necessary to separately provide a protruding push-up rib that contacts the horizontal slat on the opening side and allows it to be transferred together with the horizontal slat on the closing side, which increases the number of parts and makes the assembly of the horizontal slat complicated and increases costs. There is room for further improvement.

The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned actual situation, and is provided with a plurality of upper and lower guide rails, and each guide rail is provided with an independent horizontal slat on the closed side. Although it is supported so that the horizontal slats can be closed by running on the ground, the push-up ribs required when the horizontal slats open are removed by using the horizontal frame necessary to reinforce the inclined lower edge of the horizontal slats. The object of the present invention is to provide a descending regulation structure in a horizontal opening opening/closing device that does not require a separate push-up rib.

The structure of the present invention will be explained based on an embodiment shown in the drawings. 1 is provided between the upper and lower floors, that is, the floor section 1a on the upper floor side, in other words, the ceiling section on the lower floor side. A horizontal opening, the horizontal opening 1 includes:
An opening/closing device 2 for opening the horizontal opening 1 is provided.

The guide rails 3 constituting the opening/closing device 2 are provided on both left and right edges of the horizontal opening 1 via brackets 3b in a gently inclined manner in a plurality of upper and lower stages. The base end portion of each guide rail 3 is located below the floor portion 1a, and the tip end portion is located at the inclined lower end edge and the inclined upper end edge of the adjacent upper and lower horizontal slats 4 that have reached the closed running end of the horizontal slat 4. The guide rails 3 on the lower stage become gradually longer toward the closed side so that the sections overlap, and the lowermost guide rail 3a reaches the closed end. 5 is at the tip of the guide rail 3,
A stopper is detachably fixed via a tightening bolt 5a, and a buffer material 5b made of an elastic material such as rubber is fixed to the stopper 5, so as to receive the horizontal slat 4 that has traveled to the closed position. ing. In addition, among the guide rails 3, a cushioning material (not shown) is provided at the closed end of the lowest guide rail 3a.
A stopper 6 is provided.

The horizontal slat 4 is composed of a flat plate-shaped member that is long in the left-right direction, but in this embodiment, as shown in FIG. It is constructed by connecting two hollow plates 7 in a series through vertical frames 8 on both left and right ends and a reinforcing frame 8a in the middle. On the other hand, a pair of front and rear running rollers 9 are pivotally supported on the side surfaces of the vertical frame 8 so as to roll on the guide rail 3, and the horizontal slats 4 are guided by their own weight toward the closed position in a gently inclined manner. rail 3
It's starting to run. Further, a sealing material 10 made of an elastic material such as rubber is fixed to the upper surface of the vertical frame 8, and a sealing material 10 made of an elastic material such as rubber is fixed to the guide rail 3 and the horizontal slat 4.
close the gap between

Horizontal frames 11 and 12 are fixed to both edges in the width direction of the horizontal slat 4 with screws, and a sealing material 13 also made of an elastic material is attached to the horizontal frame 11 on the inclined upper edge side of the horizontal frames. is provided to protrude upward from the upper surface plate 7a, and closes the gap with the upper horizontal slat 4. On the other hand, the horizontal frame 12 on the inclined lower edge side is externally fitted to the lower edge of the horizontal slat 4 in an enveloping manner, and a protrusion 12a integrally protrudes upward on the upper side that contacts the top plate 7a. ing. A buffer material 12b also made of an elastic material is fixed to the inclined upper side surface of the protrusion 12a, and as the lower horizontal slat 4 moves toward the opening side, the lower horizontal slat 4 A horizontal frame 12 in which a protruding portion 12a of the horizontal frame 12 is externally fitted onto the inclined lower edge of the adjacent upper horizontal slat 4 via a cushioning material 12b.
The upper horizontal slat 4 is brought into contact with the upper horizontal slat 4 and is transported integrally to the opening side while restricting the movement of the upper horizontal slat 4 under its own weight. In particular, in this embodiment, the protrusion 12a is the lower recess 1 in the horizontal frame 12 of the upper horizontal slat 4.
2c, and is configured to be substantially flush with the upper half convex portion 12d of the horizontal frame 12. In this embodiment, since the uppermost horizontal slat 4 does not need to further push up the upper horizontal slat, the inclined lower edge side horizontal frame 11a is a horizontal frame similar to the inclined upper edge side horizontal frame 11. It has been formed.
13b is the floor part 1 for blocking and closing between the uppermost horizontal slat 4 and the floor part 1a when the opening/closing device 2 is closed.
a This is a sealing material fixed to the bottom surface.

Reference numeral 14 denotes a winding shaft rotatably mounted between the right and left sides of the base end of the opening/closing device 2, and the winding shaft 14 is operatively connected to an electric motor 16 via a chain transmission mechanism 15. It rotates in conjunction with the forward/reverse switching drive of the electric motor 16. A winding drum 17 is fixed to both ends of the winding shaft 14, and the other end of the wire 18, which has one end fixed to the winding drum 17, is fixed to the bottom plate 7b of the lowermost horizontal slat 4a. It is fixed to the bracket 18a. Then, the winding shaft 14
During the wire winding operation of the winding drum 17 as the winding drum 17 rotates forward and backward, the lowermost horizontal slat 4a is forcibly pulled and transferred to the opening side, and when the winding drum 17 unwinds the wire, the wire 18 is loosened and the horizontal slat 4a
It is designed to run under its own weight toward the blocked side. 19 is a wire receiver provided below the wire 18, and 20 is a bearing for the winding shaft 14 fixed to the horizontal opening 1 side. Further, 21 is a spring having one end fixed to the winding shaft 14 side and the other end fixed to the bearing 20 side, and the spring 21 moves the winding shaft 14 to the wire 18 by its stored force. It is rolled up so that it can be rotated in the winding direction.

Next, the operation of the present invention constructed as described above will be explained. The horizontal opening 1 is opened and closed by the opening/closing device 2 in which the present invention is implemented.
During the opening operation, cargo can be transported from the lower floor to the upper floor, and when the transport work between the upper and lower floors is completed, the upper and lower floors can be separated by closing the opening/closing device 2. can be done.

In such an opening/closing device 2, in order to close the horizontal opening 1, a changeover switch (not shown) is operated to drive the electric motor 16, rotate the winding shaft 14, and wind the wire 18. It is sufficient to unwind the film from the drum 17. That is, since the lowermost horizontal slat 4a is located at the open end when the wire 18 is wound, the upper horizontal slat 4 is connected to the protrusion 12a of the lower horizontal slat 4 in the open position. The horizontal opening 1 is opened by restricting the movement of the wire 18 to the closed side by its own weight, but due to the unwinding operation of the wire 18
8 loosens, the lowermost horizontal slat 4a moves under its own weight together with the other horizontal slats 4 toward the closing side. Then, as the wire 18 is rewound, each horizontal slat 4 sequentially contacts the stopper 5 starting from the upper one and stops moving, and the lowermost horizontal slat 4a
The opening is closed by contacting the stopper 6.

On the other hand, the closed horizontal opening 1 is opened by winding up the wire 18, contrary to the closing operation described above. That is, as the lowermost horizontal slat 4a is forcibly pulled and transferred toward the opening side by winding the wire 18, the protrusion 12a of the lower horizontal slat 4 comes into contact with the horizontal frame 12 of the upper horizontal slat 4. Even if the horizontal slats 4 are separated from each other, the single horizontal slat 4a can be opened without any trouble by simply winding it with the wire 18. be able to.

In this way, in the present invention, the pushing up of the horizontal slat 4 during the opening operation and the self-weight travel restriction of the horizontal slat 4 during the opening are controlled by the protrusion 12a integrally formed as the horizontal frame 12 constituting the horizontal slat 4. Since this is done in this way, there is no need to provide special push-up ribs. Therefore, unlike in the case of using push-up ribs, the number of parts does not increase, and the work of forming the horizontal slats 4 becomes easier, resulting in cost reduction. Moreover, horizontal frame 1
2 is integrally formed with a member having a protrusion 12a, which increases the strength, and even if it is installed in a wide horizontal opening 1, the horizontal slats 4 are made independent, and the horizontal slats The warping phenomenon described in No. 4 can be more effectively prevented, and reliable opening/closing operations can be performed.

Furthermore, since the protruding portion 12a comes into contact with the horizontal frame 12 of the upper horizontal slat 4 and closes the gap between both slats 4, the side surfaces of the overlapping horizontal slats 4 are vertically aligned when the slats 4 are opened. It forms a continuous line and does not spoil the aesthetic appearance. In particular, in this embodiment, the protruding portion 12a is the horizontal frame 1 of the upper horizontal slat 4.
Since it fits into the recess 12c of No. 2 and becomes substantially flush,
Together with the fact that this closes the gap between the two slats 4 and creates a continuous shape, the aesthetics at the time of opening can be further improved.

In the above embodiment, the upper slat 4 is pushed up by the protrusion 12a of the lower slat 4, but the present invention is not limited to this. The slats may also be pushed up. In this case, it goes without saying that the relationship between the guide rails, protrusions, etc. is reversed from that of the above embodiment.

In summary, since the present invention is constructed as described above, the horizontal slats supported by multiple upper and lower guide rails provided in a gently inclined manner on both edges of the horizontal opening move in the closing direction under their own weight. In the closed position, the inclined lower end edge and the inclined upper end edge of each adjacent horizontal slat overlap each other to close the horizontal opening, and the forced traction means is operated to force the horizontal slats toward the opening side. The lowering regulating means (push-up body) necessary for moving the other horizontal slats toward the opening side in conjunction with the lowermost horizontal slat that is being moved is mounted on a protruding piece that extends from the horizontal frame of the horizontal slat. Because it is formed in this way, it is possible to create a simple horizontal slat that makes effective use of the horizontal frame on the lower end side without using special members separately, reducing the number of parts and reducing costs. By increasing the strength of the horizontal frame, warping of the horizontal slats can be effectively prevented, and opening and closing operations can be performed without any hindrance even in a wide horizontal opening.

[Brief explanation of drawings]

The drawings show an embodiment of the descending regulation structure in the horizontal opening opening/closing device according to the present invention, in which FIG. 1 is a side view of the opening/closing device, FIG. 2 is a plan view of the same, and FIG. 3 is a main view. FIG. 4 is an enlarged front view of the main part, FIGS. 5A and B are side views and plan views of the horizontal slat, and FIGS. 6 and 7 are respectively shown when closed.
It is an explanatory view of an operation showing the opening time. In the figure, 1 is a horizontal opening, 2 is an opening/closing device, 3 is a guide rail, 4 is a horizontal slat, 5 and 6 are stoppers, 7 is a plate, 8 is a vertical frame, 9 is a running roller, 10
11 and 12 are a sealing material, 11 and 12 are horizontal frames, 12a is a protrusion, 13 is a sealing material, 14 is a winding shaft, 15 is a chain transmission mechanism, 16 is an electric motor, 17 is a winding drum, 18 is a wire, and 19 is a The wire receiver 20 is a bearing.

Claims (1)

[Scope of utility model registration request] A plurality of upper and lower guide rails are provided on both side edges of a horizontal opening opened in the building frame, descending gently from one edge of the opening toward the other edge, and the lower end position of each guide rail is In a closed position in which the horizontal slats supported by the rails are lowered to the lower ends of the rails, the upper or lower guide rails are moved so that the lower and upper edges of adjacent upper and lower horizontal slats overlap each other. The horizontal slats are positioned in stages so that they are located closer to the closed side, and between the adjacent upper and lower horizontal slats, one horizontal slat is lowered before the other horizontal slat that is lowered to the lower end of the slope. A horizontal slat that descends to the lowest end of the inclination is provided with a descending regulating means for regulating the downward movement of the horizontal slat, and is connected to a forced moving means for towing and forcibly moving the horizontal slat. The means includes extending and protruding a horizontal frame provided at the lower edge of the other horizontal slat so as to oppose the lower edge of one of the horizontal slats, and causing the lower edge of the one horizontal slat to come into contact with the protruding piece from the inclined upper side. A descending regulation structure in a horizontal opening opening/closing device, characterized in that the descending regulation structure is configured to regulate the descending when the horizontal opening/closing device hits.