JP2022134424A - shutter device - Google Patents

Abstract

To provide a shutter device that has high strength and is easy to install.SOLUTION: A shutter device includes pillars 1 that form a gate, a shutter body 2 arranged in a closed area A enclosed by the pillars 1, and a drive unit 3 that moves the shutter body 2 in the height direction. The shutter body 2 has a plurality of shutter plates 20 that are aligned toward one side of the gate depth direction and supported to move relative to each other in the height direction. When the shutter plates 20 are arranged in a closed position to close the closed area A, the lower end of each of the plurality of shutter plates 20 is successively positioned downwardly toward one of the gate depth directions. When the shutter plates 20 are arranged in an open position to open the closed area A, the lower ends of each of the plurality of shutter plates 20 are closer to each other in the height direction than when the shutter plates 20 are arranged in the closed position.SELECTED DRAWING: Figure 1

Description

The present invention relates to a shutter device.

2. Description of the Related Art Conventionally, shutters are provided at the entrances of construction sites, factories, and warehouses, and at the entrances of buildings for the purpose of preventing outsiders from entering and ensuring safety.

As the shutter, a film-shaped sheet shutter and a wire mesh shutter as described in Patent Document 1 are known. Wire mesh shutters are tougher and stronger than sheet shutters, so they are superior in crime prevention and safety.

JP-A-8-121042

However, even a shutter made of wire mesh cannot be denied the possibility of being deformed by external factors such as strong winds or contact with a worker. Moreover, in such a case, work to replace the wire mesh is required, and the work to newly attach the wire mesh to the frame after removing the wire mesh from the frame is very troublesome.

In view of such circumstances, the present invention provides a shutter device that has high strength and is easy to install.

A shutter device according to an aspect of the present invention has a gate shape configured by a pair of side posts extending in the height direction and lateral beams extending in the gate width direction that are supported by the pair of side posts and intersect the height direction. a shutter body disposed in a closed area surrounded by the lateral beam and the pair of side pillars; and a driving device for moving the shutter body in the height direction, wherein the shutter body a plurality of shutter plates aligned in one of the gate depth direction intersecting the gate width direction and the gate width direction and supported so as to be relatively movable in the height direction; , the lower ends of the plurality of shutter plates are sequentially arranged downward toward one side in the gate depth direction, and the shutter plates open the closed area in the open position , the lower ends of each of the plurality of shutter plates are closer to each other in the height direction than when the shutter plates are placed in the closed position.

In the shutter device, at the closed position, between the lower end and the upper end of the shutter plate on the near side in the gate depth direction of the two shutter plates adjacent in the gate depth direction, the shutter plate on the back side is provided. An upper end of the shutter plate may be arranged.

In the above shutter device, the horizontal beam may have an accommodation space inside which the plurality of shutter plates can be accommodated, and a downward opening that communicates the inside and outside of the accommodation space and allows the shutter plates to pass through. good.

In the above shutter device, the drive device includes a transmission mechanism that extends in the height direction and is connected to a rear-end-side shutter plate arranged on one innermost side in the gate depth direction among the plurality of shutter plates. and a drive source arranged above the plurality of shutter plates to move the rear end shutter plate in the height direction through the transmission mechanism.

In the shutter device, one of the two shutter plates adjacent in the gate depth direction is provided with a guide rail portion for guiding the other in the height direction. Of the two adjacent shutter plates, the lower shutter plate may be engaged with the lower portion of the upper shutter plate in the height direction.

In the above shutter device, the side post may be provided with a guide surface that faces the plurality of shutter plates in the gate depth direction and guides the shutter plates in the height direction.

In the above-described shutter device, the side post is provided with a groove in which at least the ends of the plurality of shutter plates in the gate width direction are arranged and which extends in the height direction. further comprising a guide member that protrudes in the gate depth direction from the groove inner surface facing one of the to form the guide surface, and the guide member gradually extends from the top to the bottom in the gate depth direction from the groove inner surface The protrusion amount may be increased.

In the above shutter device, the guide member has a plurality of guide plates detachably provided on the inner surface of the groove at intervals in the height direction, and the guide plate provided at the top to the bottom A maximum amount of protrusion in the gate depth direction from the inner surface of the groove may increase sequentially toward the provided guide plate.

In the above shutter device, each of the plurality of guide plates may have an inclined shape in which the amount of protrusion from the inner surface of the groove gradually increases toward the lower side in the height direction.

In the shutter device, the front end shutter plate arranged on one of the shutter plates in the depth direction of the gate is fixed in the height direction with respect to the horizontal beam, or A fixing structure may be further provided for fixing the shutter plates adjacent to each other in the gate depth direction in the height direction.

In the shutter device, the side post has a base portion, a tip portion disposed above the base portion, and a split coupling structure that couples the base portion and the tip portion so that the base portion and the tip portion can be split. A support structure for supporting the cross beam is provided on both of the front parts, and when the front end shutter plate and the cross beam are fixed by the fixing structure, or when at least two of the shutters are adjacent in the depth direction of the gate. When the state in which the plates are fixed together is defined as a fixed state, the position of the lower end of the shutter body in the height direction in the closed position between the fixed state and the non-fixed state in which the fixed structure is not used. The difference may correspond to the dimension of the tip portion in the height direction.

The shutter device according to the above aspect has high strength and is easy to install.

1 is an overall front view of a shutter device according to an embodiment of the present invention; FIG. It is a side view in the said shutter apparatus, Comprising: It is a figure shown through a side post for convenience. FIG. 4 is a side view showing a state in which the shutter plate in the shutter device is accommodated, and is a view showing through the side pillars for the sake of convenience. FIG. 4 is a lateral cross-sectional view of a horizontal beam in the shutter device, taken along line IV-IV of FIG. 3; FIG. 2 is a cross-sectional view of a side post in the shutter device, taken along the line VV in FIG. 1; It is the figure which looked at the horizontal beam in the said shutter apparatus from the back (back side). It is a whole front view of the shutter apparatus based on the 1st modification of embodiment of this invention. It is a side view of the shutter device concerning the second modification of the embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. A shutter device 100 is a device for closing or opening a passage in a factory or the like.

(overall structure)
As shown in FIG. 1, the shutter device 100 includes a gate-shaped column 1, a shutter body 2 provided on the column 1, a driving device 3 for moving the shutter body 2 in the height direction, and a and a guide member 4 for guiding the shutter body 2 in the height direction. As will be described later, the guide member 4 is not an essential component.

(pillar)
The column 1 has a side post 10 installed on the floor surface and extending in the height direction, and a lateral beam 11 supported by the side post 10 .

(horizontal beam)
The cross beams 11 are arranged above the floor surface, cross the height direction, and extend in the gate width direction along the horizontal direction. In this embodiment, a plurality of (two) cross beams 11 are connected in a splittable manner in the gate width direction. Since these horizontal beams 11 have the same configuration, one horizontal beam 11 will be described below as a representative.

As shown in FIGS. 2 and 3, inside the horizontal beam 11, a housing space S is formed for housing a shutter plate 20, which will be described later. Further, the lateral beam 11 is formed with a downward opening 11a that communicates the inside and outside of the accommodation space S. As shown in FIG. The opening 11a has a rectangular shape extending in the gate width direction so that a shutter plate 20, which will be described later, can pass through. It should be noted that the phrase "accommodating the shutter plates 20" does not necessarily mean only the case where each shutter plate 20 described later is wholly disposed within the accommodation space S, and a part of each shutter plate 20 is located inside the accommodation space S It also means when placed within

In the gate depth direction that intersects the height direction and the gate width direction, rectangular openings 11b are formed on the front side and the back side of the horizontal beam 11 so that the shutter plate 20, which will be described later, can be visually recognized ( See Figure 1).

Further, as shown in FIG. 4, a guide rail portion 12 protruding in the gate width direction in the housing space S and extending in the height direction is provided on the inner side surface 11d of the horizontal beam 11 facing the gate width direction. A shutter plate 20 on the frontmost side, which will be described later, is engaged with the guide rail portion 12 so that the shutter plate 20 is guided in the height direction by the guide rail portion 12 . The guide rail portion 12 may be formed integrally with the cross beam 11 or may be a separate member attached to the inner side surface 11 d of the cross beam 11 . A plurality of guide rail portions 12 are provided at intervals in the depth direction of the gate, and the shutter plates 20 other than the shutter plate 20 on the frontmost side may also be engaged with the corresponding guide rail portions 12 .
Inside the cross beam 11, an inner bottom surface 11e facing upward below the guide rail portion 12 and a top surface 11f facing downward above the guide rail portion 12 are provided (see FIG. 2).

(side post)
Returning to FIG. 1, a pair of side pillars 10 are provided at intervals in the gate width direction. Each side pillar 10 is connected to the lateral beam 11 at the gate width direction end of each lateral beam 11 by a support structure 14 including bolts (fasteners), bolt holes, etc., and supports the lateral beam 11 from below. there is

Each side pillar 10 can be divided into a plurality (two in this embodiment) in the height direction. Specifically, the side pillar 10 includes a base portion 16 erected on the floor, a tip portion 17 arranged on top of the base portion 16, and a split joint structure 18 that joins the base portion 16 and the tip portion 17 in a splittable manner. and Although detailed illustration of the split coupling structure 18 is omitted, it is composed of bolts, spacers, and bolt holes. The split-joint structure 18 also functions as the support structure 14 , allowing the upper portion of the base 16 to be directly joined to the cross beam 11 by the split-joint structure 18 .

The division position of the side post 10 will be described in detail later, but in this embodiment, it corresponds to the dimension of one shutter plate 20 in the height direction. Further, as shown in FIG. 5, each side post 10 has a U-shape in a cross section orthogonal to the height direction. That is, the side pillar 10 is formed with a groove 10a that is recessed outward in the gate width direction and extends in the height direction. Inside the groove 10a, an end portion of a shutter plate 20, which will be described later, in the gate width direction is arranged.

(driving device)
Returning to FIG. 1 , the driving device 3 is provided on the horizontal beam 11 . As shown in FIGS. 2 and 3, the drive device 3 includes a case 30, a drive source 31 housed in the case 30, and a transmission mechanism 32 connecting the drive source 31 and the shutter plate 20, which will be described later. .

The case 30 extends in the gate width direction along the lateral beams 11 and is provided between the plurality (two) of the lateral beams 11 above the lateral beams 11 . The case 30 is provided with an inspection lid 30a for accessing the inside of the case 30 on the front side in the depth direction of the gate (see FIG. 1). The inspection lids 30a are provided one by one at positions close to both ends of the case 30 in the gate width direction.

The drive source 31 is, for example, an electric motor or the like, and has a rotary shaft 31a that rotates around an axis extending in the gate width direction. Only one drive source 31 is provided, for example, at a position close to one end of the case 30 in the gate width direction.
In this embodiment, the transmission mechanism 32 has a pulley 32a provided on the rotating shaft 31a of the drive source 31 in the case 30, and a belt 32b provided on the pulley 32a and extending downward from the inside to the outside of the case 30. is doing. The belt 32b extends below the horizontal beam 11 through the accommodation space S of the horizontal beam 11 . The belt 32b can wind up and unwind the shutter plate 20, which will be described later, through the pulley 32a by the driving source 31. As shown in FIG. The transmission mechanism 32 is not limited to the pulley 32a and the belt 32b, and may be composed of gears and a chain, for example.

The drive source 31 is provided with a limiter (not shown). This limiter enables setting so that a shutter plate 20, which will be described later, is arranged at a predetermined position.

(Shutter body)
Returning to FIG. 1, the shutter body 2 has a plurality of (five in this embodiment) shutter plates 20 . The shutter bodies 2 are provided on a plurality of (two) cross beams 11 coupled in the width direction of the gate and have the same structure, so one shutter body 2 will be described as a representative. When a plurality of (two) cross beams 11 are connected in the gate width direction, the shutter bodies 2 provided on each cross beam 11 are also connected in the gate width direction (see FIG. 4). .

As shown in FIGS. 2 and 3, the plurality of shutter plates 20 are arranged from the front side to the back side in the depth direction of the gate. A plurality of shutter plates 20 are arranged with a slight gap in the gate depth direction so as not to contact each other. In this embodiment, the dimensions in the height direction of the plurality of shutter plates 20 are the same. Although each shutter plate 20 is made of metal, it may be made of a material such as resin that is hard to bend and has a certain degree of strength.

As shown in FIG. 2, when the plurality of shutter plates 20 are arranged in the closed position to close the closed area A surrounded by the lateral beam 11 and the pair of side posts 10, the lower ends 20a of the plurality of shutter plates 20 , are arranged at positions shifted in the height direction when viewed from the depth direction of the gate. That is, the lower ends 20a of these shutter plates 20 are arranged downward in order from the shutter plate 20 on the front side toward the shutter plate 20 on the back side.

In this embodiment, in the closed position, the upper end 20b of the shutter plate 20 adjacent on the back side is arranged between the lower end 20a and the upper end 20b of the two shutter plates 20 adjacent in the gate depth direction. A gap is not formed between the shutter plates 20 when viewed from the depth direction of the gate.

Further, the belt 32b of the transmission mechanism 32 is connected to the upper portion of the innermost shutter plate 20X arranged on the innermost side of the plurality of shutter plates 20 in the gate depth direction (the rightmost side as viewed in FIG. 2). A connecting portion 21 (for example, a belt roller) is provided. Thus, in this embodiment, only the rear end shutter plate 20X is connected to the belt 32b and pulled upward.

Here, the plurality of shutter plates 20 are supported so as to be relatively movable in the height direction. As a specific structure, as shown in FIG. 4, one end of each of the shutter plates 20 in the gate width direction, which is closer to the side pillar 10, is attached to the back surface of the shutter plate 20 (the back side in the gate depth direction). A guide rail portion 22 extending in the height direction is provided on the surface facing the . The guide rail portion 22 has an L shape in a cross section orthogonal to the height direction. That is, the guide rail portion 22 protrudes from the rear surface of the shutter plate 20 to the inner side, and then bends or curves inward in the gate width direction. The guide rail portion 22 may be formed integrally with the shutter plate 20 or may be a separate member attached to the shutter plate 20 .

Further, of the both ends of each shutter plate 20 in the gate width direction, near one end of the side close to the side pillar 10 and at the upper position, the surface of the shutter plate 20 (the surface facing the front side in the gate depth direction) is covered. A guide portion 23 is provided. The guided portion 23 has an L shape in a cross section orthogonal to the height direction. That is, the guided portion 23 protrudes forward from the surface of the shutter plate 20, and then bends or curves outward in the gate width direction.

The guided portion 23 is fitted and engaged with the guide rail portion 22 of the shutter plate 20 adjacent in the gate depth direction, and is guided in the height direction by the guide rail portion 22 . Here, the guided portion 23 provided on the front end side shutter plate 20Y arranged on the frontmost side in the gate depth direction is engaged with the guide rail portion 12 in the horizontal beam 11 and is guided. When a plurality of guide rail portions 12 are provided as described above, each shutter plate 20 corresponding to these guide rail portions 12 is engaged with and guided by the guide rail portions 12. . The guided portion 23 may be formed integrally with the shutter plate 20 or may be a separate member attached to the shutter plate 20 .

Returning to FIG. 2, each shutter plate 20 is provided with an upper plate 24 protruding from the rear surface of the shutter plate 20 so as to cover the upper portion of the shutter plate 20 and having a top surface 24a facing downward. Each shutter plate 20 is provided with a lower plate 25 protruding from the rear surface of the shutter plate 20 so as to cover the lower portion of the shutter plate 20 and having a bottom surface 25a facing upward. These upper plate 24 and lower plate 25 are provided integrally with the shutter plate 20 . When the shutter plate 20 is arranged in the closed position (the state shown in FIG. 2), the guided portion 23 of the shutter plate 20 contacts the bottom surface 25a of the shutter plate 20 adjacent to the front side in the gate depth direction from above. engages and locks in the height direction. The guided portion 23 of the shutter plate 20Y on the front end side comes into contact with the inner bottom surface 11e of the horizontal beam 11 from above and is locked.

Then, when the rear end shutter plate 20X is pulled up by the belt 32b, the plurality of shutter plates 20 are arranged at the open position where the closed area A is opened as shown in FIG.
In the open position shown in FIG. 3, the guided portion 23 of the shutter plate 20 contacts and engages the top surface 24a of the shutter plate 20 adjacent to the front side in the gate depth direction from below, and engages in the height direction. be stopped. The guided portion 23 of the shutter plate 20Y on the front end side contacts the top surface 11f of the horizontal beam 11 from below and is locked (refer to FIG. 2 for each reference numeral).

When the shutter plates 20 are arranged at the open position shown in FIG. 3, all the shutter plates 20 are accommodated in the accommodation spaces S of the horizontal beams 11. As shown in FIG. At this time, the lower ends 20a of the shutter plates 20 are sequentially arranged downward from the near side to the far side when viewed from the depth direction of the gate, and are arranged in a stepped manner. More specifically, in the open position, the lower end 20a of the far end side shutter plate 20X is positioned substantially at the same position in the height direction as or slightly above the lower end of the horizontal beam 11, and the other shutter plates 20 are located at the lower end of the horizontal beam 11. placed above. In this embodiment, since the plurality of shutter plates 20 have the same size in the height direction, the upper end 20b of the shutter plate 20 (see FIG. 2) is positioned at the front side of the adjacent shutter plate 20 in the gate depth direction at the open position. It is arranged between the upper end 20b and the lower end 20a.

(fixed structure)
Of the plurality of shutter plates 20, only the shutter plate 20Y on the front end side can be fixed to the horizontal beam 11 in the height direction by the fixing structure 5 provided on the horizontal beam 11. As shown in FIG. Specifically, as shown in FIG. 6, the fixing structure 5 includes a support lever 50 supported on the upper back surface of the horizontal beam 11, and bolts (not shown) for fixing the front end side shutter plate 20Y to the support lever 50. It has bolt holes and the like. One end of the support lever 50 is supported by the lateral beam 11 so as to be rotatable about an axis extending in the depth direction of the gate. The other end of the support lever 50 is fixed to the upper part of the cross beam 11 by a bolt or the like (not shown) when the fixed structure 5 is not used, and is arranged to extend in the gate width direction. The support lever 50 is rotated so that the other end is arranged downward. When the fixing structure 5 is used, it is fixed to the other end of the support lever 50 while the front end shutter plate 20Y is arranged in the accommodation space S.

When the shutter plate 20Y on the front end side is fixed to the horizontal beam 11 by the fixing structure 5, the position of the lower end 20a of the shutter plate 20X on the far end side moves upward when the shutter plate 20 is arranged at the open position. , the height position of the lower end of the shutter body 2 in the open position can be adjusted.

Here, a state in which the front end shutter plate 20Y is fixed to the cross beam 11 using the fixing structure 5 is defined as a fixed state, and a state in which the front end shutter plate 20Y is not fixed to the cross beam 11 without using the fixing structure 5. is in the non-fixed state. In this embodiment, the height dimension of the tip portion 17 of the side post 10 corresponds to the difference in the height direction position of the lower end of the shutter body 2 in the open position between the fixed state and the non-fixed state. there is Therefore, as shown in FIG. 7, in a fixed state where the shutter plate 20Y on the front end side is fixed to the horizontal beam 11 using the fixing structure 5, the horizontal beam 11 is directly connected to the base portion 16 of the side post 10, and the shutter device 100 is mounted. Height dimension is adjustable.

(Guide member)
Returning to FIG. 5, the guide member 4 is provided inside the groove 10a formed in the side post 10. As shown in FIG. More specifically, the guide member 4 is provided so as to protrude from a groove inner surface 10x that constitutes the groove 10a of the side post 10 and faces the back side in the gate depth direction.

Returning to FIG. 2, in this embodiment, the guide member 4 has a plurality of guide plates 40 detachably provided on the groove inner surface 10x at intervals in the height direction. Each guide plate 40 has a triangular shape in which the width in the height direction gradually decreases toward the depth side in the depth direction of the gate. That is, each of the guide plates 40 has an inclined shape with an inclined surface 40b so that the amount of protrusion from the groove inner surface 10x gradually increases toward the bottom (see FIG. 3). In these guide plates 40, the maximum amount of protrusion in the gate depth direction from the groove inner surface 10x increases sequentially from the guide plate 40 provided at the top to the guide plate 40 provided at the bottom. The front end (vertex of the triangle) of each guide plate 40 in the gate depth direction faces the surface of each shutter plate 20 arranged at the closed position. The tip of each guide plate 40 is a guide surface 40a, and in the closed position, the guide surface 40a is arranged with a minute gap from the surface of each corresponding shutter plate 20, or is in contact with the surface. , the shutter plate 20 is positioned in the gate depth direction and can be guided in the height direction.

(Installation method of shutter device)
Next, a method for installing the shutter device 100 will be briefly described. First, the side post 10 is erected at the target position where the shutter device 100 is to be installed. The base portion 16 and the front portion 17 may be connected before the side post 10 is provided at the target position, or the front portion 17 may be connected to the base portion 16 after the base portion 16 is provided at the target position.

After that, the guide member 4 is installed in the groove 10a of the side post 10. As shown in FIG. The guide member 4 may be attached to the side post 10 before the side post 10 is provided at the target position.

Next, with all of the shutter plates 20 accommodated in the accommodation space S of the lateral beam 11 and with the belt 32b of the transmission mechanism 32 connected to the innermost shutter plate 20X, the lateral beam 11 is attached to the tip portion of the side pillar 10. A support structure 14 is attached to the top of 17 . As shown in FIG. 7, when the front end shutter plate 20Y is fixed to the horizontal beam 11 by the fixing structure 5 and the shutter device 100 is installed, the front end portion 17 of the side post 10 is not installed. Cross beam 11 is connected to base 16 . In the state shown in FIG. 7, it is necessary to adjust the protrusion amount of the guide plate 40 from the groove inner surface 10x, so the arrangement of the guide plate 40 is different from that in the state shown in FIG.

(Effect)
According to the shutter device 100 of the present embodiment described above, the shutter body 2 that closes and opens the closed area A surrounded by the gate-shaped support 1 is composed of a plurality of shutter plates 20 . Therefore, the shutter main body 2 has properties such that it is difficult to bend and deform, and has high strength.

In addition, by arranging the plurality of shutter plates 20 at positions sequentially shifted in the depth direction, when bringing the shutter body 2 to the target position where the shutter device 100 is to be installed, the shutter body 2 can be carried compactly in the height direction. , the installation of the shutter device 100 is very easy. Particularly, in this embodiment, the shutter plate 20 can be accommodated in the accommodation space S of the horizontal beam 11, so installation of the shutter device 100 is further facilitated. Further, even if the shutter plate 20 needs to be replaced due to damage, deterioration, or the like, the replacement work is facilitated.

Further, the shutter plates 20 are supported by the guide rail portion 22 and the guided portion 23 so as to be relatively movable in the height direction. By connecting only the rear end shutter plate 20X to the transmission mechanism 32, all the shutter plates 20 can be drawn downward to be placed in the closed position, or pulled upward to be placed in the open position. Therefore, the structure is very simple, and the installation of the shutter device 100 is easy.

In addition, since the edge of the shutter plate 20 in the gate width direction is arranged in the groove 10a of the side post 10, a gap may be formed between the side post 10 and the shutter plate 20 when viewed from the gate depth direction. Therefore, the closed area A can be closed reliably. In the closed position, the upper end 20b of the shutter plate 20 adjacent to the rear side is arranged between the lower end 20a and the upper end 20b of the shutter plate 20, so that a gap is formed between the shutter plates 20 in the height direction. The closed area A can be reliably closed without any trouble.

A guide member 4 is provided on the side post 10 . Therefore, the shutter plate 20 can be smoothly moved between the open position and the closed position while suppressing rattling. Further, the guide member 4 suppresses the rattling of the shutter plate 20 in the gate depth direction at the closed position, so that the shutter plate 20 can be stably arranged at the closed position.

In this embodiment, the guide member 4 has a plurality of guide plates 40 that can be attached to and detached from the side posts 10 . Therefore, by appropriately changing the dimensions and shape of the guide plate 40, the amount of protrusion of the guide member 4 in the gate depth direction can be easily adjusted according to the position of the surface of each shutter plate 20 in the gate depth direction. , the replacement of the guide member 4 is also easy.

Each guide plate 40 has a triangular shape. Therefore, at the portion where the guide plate 40 is attached to the inner groove surface 10x of the side pillar 10, the dimension in the height direction of the guide plate 40 can be secured, and the attachment to the inner groove surface 10x is not impaired. Moreover, even if the guide surface 40a of the guide plate 40 comes into contact with the surface of the shutter plate 20, the contact area between the shutter plate 20 and the guide plate 40 can be reduced, and the surface of the shutter plate can be prevented from being worn or damaged. can suppress the occurrence of Further, since the guide plate 40 has the inclined surface 40b, the surface of the shutter plate 20 can be guided in the height direction while being pushed inward by the inclined surface 40b. can be operated.

Further, since the front end shutter plate 20Y can be fixed to the horizontal beam 11 by the fixing structure 5, the position of the lower end of the shutter body 2 can be easily adjusted. Furthermore, since the side post 10 has the split-joint structure 18, when it is desired to reduce the height dimension of the shutter device 100 and the closed area A, the side post 10 can be easily divided to shorten the side post 10. The specification of the height of the shutter device 100 can be easily changed. In particular, in this embodiment, the height dimension of the tip portion 17 of the side post 10 is the height of the shutter body 2 in the closed position between the fixed state using the fixing structure 5 and the non-fixed state using the fixing structure 5. It corresponds to the difference in the height direction of the position of the lower end. Therefore, if the tip portion 17 is separated from the base portion 16 in a fixed state using the fixing structure 5, the height of the shutter device 100 is reduced, and the entire closed area A is closed by the shutter main body 2 at the closed position. becomes possible.

As described above, the embodiments of the present invention have been described in detail with reference to the drawings. , substitutions, and other modifications are possible. Moreover, the present invention is not limited by the embodiments, but only by the claims.

For example, the height dimension of the plurality of shutter plates 20 may be different from each other. Also, the position of the lower end 20a of the shutter plate 20 at the open position and the closed position is not particularly limited. For example, in the open position, the lower ends 20a may be arranged at the same height position. That is, it is sufficient that the lower ends 20a of the shutter plates 20 are closer to each other in the height direction at least in the open position than in the closed position.

Further, the guide rail portion 22 may be provided on one of the shutter plates 20 adjacent in the depth direction of the gate, and the guided portion 23 may be provided on the other. Further, the top surface 24a and the bottom surface 25a on which the guided portion 23 is locked in the height direction may be provided on the guide rail portion 22 itself, and the installation position is not particularly limited.

Moreover, the plurality of shutter plates 20 do not necessarily have to be housed in the horizontal beams 11 .
Further, the shutter body 2 is not limited to being operated using the drive source 31, and may be operated manually.

Further, the guide member 4 may not be provided, and the shutter plate 20 may be guided using the groove inner surface 10x of the side post 10 itself as the guide surface 40a. That is, the guide surface 40a may be formed directly on the side post 10. As shown in FIG. The shape of the guide member 4 is also not particularly limited, and may be, for example, a member that is continuous in the height direction.

Further, the fixing structure 5 may be provided between the shutter plates 20 adjacent to each other in the depth direction of the gate. In this case, it is possible to adjust the position of the lower end of the shutter body 2 in the height direction by fixing the two shutter plates 20 adjacent to each other in the gate depth direction. Three or more shutter plates 20 may be fixed by the fixing structure 5 .

Further, the side post 10 is not limited to being divided into two parts, the base part 16 and the tip part 17, and may be further divided into a plurality of parts.

Further, the driving device 3 is not limited to being provided on the lateral beam 11. For example, the driving device 3 may be provided on the side pillar 10 to move the shutter main body 2 in the gate width direction.

Moreover, the horizontal beam 11 and the shutter body 2 do not necessarily have to be combined in a plurality (two) so that they can be divided in the gate width direction.

Further, as shown in FIG. 8, in the shutter device 200, the case 30 of the driving device 3 may be provided on the side of the horizontal beam 11, that is, on the front side (or the back side) in the depth direction of the gate. In this case, for example, a second pulley 32c is provided above the shutter body 2 in the accommodation space S. The belt 32b is arranged to extend downward from the second pulley 32c after extending from the case 30 in the gate depth direction toward the second pulley 32c, and is connected to the innermost shutter plate 20X.

According to the shutter device of the present invention, it has high strength and is easy to install.

1 Post 2 Shutter Body 3 Driving Device 4 Guide Member 5 Fixing Structure 10 Side Post 10a Groove 10x Groove Inner Surface 11 Horizontal Beam 11a Opening 12 Guide Rail Part 13 Joining Member 14 Supporting Structure 16 Base Part 17 Front Part 18 Split and Coupling Structure 20 Shutter Plate 20X Back End-side shutter plate 20Y Front-end shutter plate 20a Lower end 20b Upper end 22 Guide rail portion 23 Guided portion 30 Case 31 Drive source 32 Transmission mechanism 40 Guide plate 40a Guide surfaces 100, 200 Shutter device A Closed region S Accommodation space

Claims (11)

a gate-shaped column made up of a pair of side posts extending in the height direction and lateral beams extending in the gate width direction that are supported by the pair of side posts and cross in the height direction;
a shutter body disposed in a closed area surrounded by the lateral beam and the pair of side posts;
a driving device for moving the shutter body in the height direction;
with
The shutter main body has a plurality of shutter plates aligned in one direction in a gate depth direction intersecting the height direction and the gate width direction and supported so as to be relatively movable in the height direction,
When the shutter plates are arranged at the closed position for closing the closed area, the lower ends of the plurality of shutter plates are sequentially arranged downward toward one side in the depth direction of the gate,
When the shutter plates are arranged in the open position for opening the closed area, the lower ends of the plurality of shutter plates are arranged in the height direction relative to each other than when the shutter plates are arranged in the closed position. Proximity shutter device. In the closed position, between the lower end and the upper end of the shutter plate on the front side in one of the two shutter plates adjacent in the depth direction of the gate, the upper end of the shutter plate on the back side is provided. 2. The shutter device according to claim 1, wherein a is arranged. 3. The horizontal beam according to claim 1, wherein the horizontal beam has a housing space capable of housing a plurality of the shutter plates therein, and a downward opening that communicates the inside and outside of the housing space and allows the shutter plates to pass through. shutter device. The driving device
a transmission mechanism extending in the height direction connected to a rear end shutter plate arranged on one innermost side in the depth direction of the gate among the plurality of shutter plates;
a drive source arranged above the plurality of shutter plates and configured to move the rear end shutter plate in the height direction through the transmission mechanism;
The shutter device according to any one of claims 1 to 3, comprising: One of the two shutter plates adjacent in the gate depth direction is provided with a guide rail portion for guiding the other in the height direction,
2. In the closed position, the lower one of the two shutter plates adjacent to each other in the gate depth direction is engaged in the height direction with the lower portion of the upper shutter plate. 5. The shutter device according to any one of 4 to 4. 6. The side post is provided with a guide surface that faces the plurality of shutter plates in the gate depth direction and guides the shutter plates in the height direction. Shutter device according to. The side pillars are formed with grooves in which at least ends in the gate width direction of the plurality of shutter plates are arranged and the grooves extend in the height direction,
further comprising a guide member that protrudes in the gate depth direction from an inner surface of the groove that faces one side in the gate depth direction and constitutes the guide surface,
7. The shutter device according to claim 6, wherein the guide member gradually increases in the amount of protrusion from the inner surface of the groove in the gate depth direction from the upper portion to the lower portion. The guide member has a plurality of guide plates detachably provided on the inner surface of the groove at intervals in the height direction,
8. The shutter device according to claim 7, wherein the maximum amount of protrusion in the gate depth direction from the inner surface of the groove increases sequentially from the uppermost guide plate toward the lowermost guide plate. 9. The shutter device according to claim 8, wherein each of the plurality of guide plates has an inclined shape in which the amount of protrusion from the inner surface of the groove gradually increases toward the lower side in the height direction. Of the plurality of shutter plates, a front end shutter plate disposed on one of the frontmost sides in the gate depth direction is fixed to the horizontal beam in the height direction, or is adjacent to the gate depth direction. 10. The shutter device according to any one of claims 1 to 9, further comprising a fixing structure for fixing said shutter plates to each other in said height direction. The side pillars are
a base;
a tip disposed on top of the base;
a split joint structure that joins the base portion and the tip portion so as to be split;
has
A support structure for supporting the cross beam is provided on both the base and the tip,
When the front end side shutter plate and the horizontal beam are fixed by the fixing structure, or when at least two of the shutter plates adjacent to each other in the gate depth direction are fixed to each other,
The difference in the height direction position of the lower end of the shutter body in the closed position between the fixed state and the non-fixed state in which the fixing structure is not used is equal to the height direction dimension of the tip portion. 11. Shutter device according to claim 10, corresponding to each other.

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