JP4459740B2 - Shutter device with flood prevention function - Google Patents

Description

  The present invention comprises a shutter in which a plurality of slats are flexibly connected, a drum on which the shutter is wound so as to be wound or rewound, and guide members for guiding both side ends of the shutter, The present invention relates to a shutter device in which the shutter is provided at an entrance / exit of a building, an underground facility, etc., and when the drum is driven by a motor, the shutter is driven in the vertical direction to open / close the entrance / exit.

  Various shutter doors or shutter devices such as an underground facility submerged waterproof shutter, shutter-type waterproof fence, and an inundation prevention device integrated with the shutter door have been conventionally proposed as disclosed in Patent Documents 1 to 3, for example. As the prior art of the present invention, the invention shown in Patent Document 1 can be cited. The present invention includes a caterpillar shutter and a waterproof sheet superimposed on the caterpillar shutter. The shutter is wound around a shutter drum, and the waterproof sheet is wound around a waterproof drum. On the other hand, a seal member is provided around an opening such as an underground ventilation port that prevents water from entering. Therefore, when there is a risk of flooding, the shutter and the prevention sheet are fed out from the respective drums, the opening is closed, and the waterproof sheet is pressed against the seal member via the shutter by the guide rail. It is sealed and water immersion from the opening is prevented.

JP 2004-92361 A JP 2003-82756 JP-A-9-209327 JP-A-5-256067

  According to the invention described in Patent Document 1, a waterproof sheet is provided in addition to a caterpillar shutter, and a seal member is provided in an opening for waterproofing water. Can be prevented. However, there are many application problems or points to be improved. For example, the invention described in Patent Document 1 includes two drums, a caterpillar-shaped shutter drum and a waterproof sheet drum, and the structure is complicated and expensive. In addition, when there is a risk of flooding, the shutter and the waterproof sheet must be driven in synchronization at the same time, which is not necessarily economical. Furthermore, although it does not necessarily flood from the whole area of an opening part, the whole area of an opening part is closed. Also, since the shutter is located inside the opening and the waterproof sheet is located outside, the shutter has a caterpillar shape, but there is no crime prevention, it is just a support material for the waterproof sheet, and a crime prevention is necessary In some cases, it is necessary to provide a separate member. For these reasons, even though it is effective as a flood prevention device for relatively small openings such as ventilation openings, it is not suitable for crime prevention and waterproofing devices for large openings such as entrances and exits of buildings and basements.

  Accordingly, an object of the present invention is to provide a shutter device having a crime prevention function and also having a flood prevention function. It is another object of the present invention to provide a shutter door that has a structure that is simple and can be provided at low cost, and that has a flood prevention function that can be easily applied to existing shutters.

In order to achieve the above object, the present invention preferably employs a shutter composed of a plurality of metal slats. Water pressure such as flood water to be submerged acts on the shutter when the shutter is closed, but when such water pressure acts, the shutter is pressed against the guide member, the support member, and the like by the water pressure. Therefore, according to the present invention, a waterproof sheet is attached to the shutter, and a seal member is provided on the support member or the guide member. Thereby, it is prevented that rainwater, flood water, etc. which are going to be flooded from the entrance of the building are flooded into the building. In addition to the electric motor, a hydraulic motor is applied to the driving means for driving the shutter. Thus, according to the first aspect of the present invention, a shutter in which a plurality of slats are flexibly connected, a drum on which the shutter is wound so as to be wound or unwound, and both end portions of the shutter are guided. The shutter is provided at an entrance of a building, underground facility, etc. When the drum is driven by a motor, the shutter is driven up and down to open and close the entrance. In the shutter device, a bendable waterproof sheet is provided on the back surface of the shutter, and a seal member is provided on the guide member so as to face the waterproof sheet. When water pressure such as flood water acts on the surface of the shutter , the waterproof sheet is configured to be pressed against the sealing material. According to a second aspect of the present invention, in the shutter device according to the first aspect, the waterproof sheet is provided from the lower end of the shutter to a predetermined height position.
According to a third aspect of the present invention, the shutter includes a shutter in which a plurality of slats are flexibly connected, a driving member that drives the shutter, and guide members that guide both side ends of the shutter. but buildings, provided the entrance of the underground facilities, when the shutter is housed in the basement is driven upward by the driving member, a and has a shutter apparatus adapted doorway is closed, the shutter with the back surface of bendable tarpaulin is provided, the waterproof sheet and the said guide member so as to face the sealing member is provided, water pressure, such as flood water to be flooded into the shutter is the When acting on the surface of the shutter, the waterproof sheet is configured to be pressed against the sealing material. According to a fourth aspect of the present invention, in the shutter device according to the third aspect, the waterproof sheet is provided from the upper end of the shutter to a predetermined height position, and the invention according to the fifth aspect includes the first to fourth aspects. The shutter device according to any one of claims 1 to 5, wherein the waterproof sheet is detachably attached to the inside of the shutter, and the invention according to claim 6 is the shutter device according to any one of claims 1 to 5. The driving device for driving the shutter is constituted by a water pressure motor that operates with water pressure such as tap water or water in a water supply tank.

As described above, according to the present invention, since the shutter device is composed of a plurality of slats, the crime prevention function is exhibited in the same manner as the conventional shutter device. According to the present invention, since the waterproof sheet is attached to the shutter, and the seal member is provided on the guide member corresponding to the waterproof sheet, when the water pressure such as rain water or flood water acts on the shutter, the shutter The waterproof sheet is pressed against the sealing member provided on the guide member by being pressed toward the guide member. Thereby, while providing a crime prevention function, the effect peculiar to this invention that the inundation to the inside of a building etc. is prevented is acquired. In addition, a waterproof sheet can be attached to the shutter, and the guide member can be provided at a low cost with a structure in which a seal material is provided. Moreover, the effect which can modify the existing shutter apparatus cheaply is also acquired.
In addition, according to the invention in which the drive device is composed of a water pressure motor that operates at a water pressure such as tap water and water in a water supply tank, in the tap water and water storage tank, which has a low probability of being interrupted in the event of a disaster where power cannot be obtained. The effect of being able to drive the shutter device with water or the like can be obtained.

  Embodiments of the present invention will be described below. The shutter device having a flood prevention function according to the present embodiment can be applied to a doorway of a building, an entrance / exit of a parking lot, an entrance / exit to a basement, etc. An example applied to a “gateway” will be described below. FIG. 1A is a front view showing a use state of the shutter device according to the first embodiment. As shown in FIG. 1, the shutter device 1 according to the present embodiment In appearance, it is the same as a conventional slat shutter. 1 (a) is a front view showing a state in which the slat shutter is pulled up and the doorway is closed, but the slat shutter 1 itself is not different from the conventional one, and is located at a predetermined height position from its lower end. The difference is that the waterproof sheet 20 is attached. And the sealing material 15 is affixed on the guide members 10 and 10 which guide this slat type shutter corresponding to the waterproof sheet 20, as will be described later.

  One slat 2 is shown in the perspective view of FIG. The slat 2 has a predetermined width and a length that can cover the entrance of the building in the axial direction. The upper end edge 3 in the width direction is formed with an upper engaging portion 4 that is bent in a spiral shape in the left direction. Further, the lower edge 5 is formed with a lower engaging portion 6 which is once bent rightward and then spirally bent leftward. Accordingly, the upper engaging portion 4 opens downward on the left side of the slat 2 surface, while the lower engaging portion 6 opens upward on the right side. Since the upper and lower engaging portions 4 and 6 are formed on both edges of the slat 2 as described above, the first slat 2 is attached so that the upper and lower engaging portions 4 and 6 are engaged with each other. When the slats 2 are inserted into the second slats 2 from the lateral direction, the slats 2 are connected to bendable. In the same manner, a predetermined number of slats 2, 2,... Are connected to form a shutter 7.

Guide members 10 and 10 that reach from the ground G to the upper end of the entrance are provided on both sides of the entrance of the building. The guide member 10 is formed from the flange portions 11, 11 and the bottom portion 12 so as to exhibit channel steel, and the opening portions thereof face each other. The guide member 10, 10 are facing Thus, both side edge portions of the shutter 7 that are configured as described above are guided. A shutter case 13 is installed in the horizontal direction above the doorway. Although not shown in FIG. 1, the shutter case 13 is provided with a winding drum for winding the shutter 7, and the shutter 7 is wound up and lowered by the winding drum. This winding drum is driven by a motor 14.

  On the back side of the shutter 7 configured as described above, that is, the portion facing the inside of the building, a waterproof sheet 20 having a size for closing the doorway from the ground G to a predetermined height position or from the lower end portion to a predetermined height position. It is attached. The waterproof sheet 20 may be a waterproof fabric, but is preferably formed from a synthetic tree sheet. Such a waterproof sheet 20 is made of a flexible or flexible material. A plurality of, for example, bolts as attachment means are provided on the back side of the shutter 7, and the waterproof sheet 20 is passed through these bolts and fixed with nuts via washers. Therefore, the waterproof sheet 20 is replaceable with respect to the shutter 7. The waterproof sheet 20 is provided from the ground to a predetermined height position when the doorway is closed as shown in FIG. 1 (a), and the guide members 10 and 10 correspond to this position. As shown in FIG. 1C, a sealing material 15 made of synthetic rubber, for example, is provided inside the flange portion 11.

  Next, the operation of the above embodiment will be described. In general, it works as conventionally known. That is, when the shutter 7 is lowered, the motor 14 is rotated in the reverse direction. Then, the entrance / exit is closed as shown in FIG. The motor 14 is rotated forward to wind up the shutter 7, and the doorway is opened. Although it can be used as described above, when rainwater, river flood water, or the like is infiltrated into the building, the pressure pushes the shutter 7 inward as indicated by arrows R and R. Then, the waterproof sheet 20 is pressed against the sealing materials 15 and 15 of the guide members 10 and 10. Thereby, the waterproof sheet 20 prevents water from entering the building without performing any special operation.

  FIG. 2 shows a third embodiment of the present invention. The shutter device 1 ′ having the function of preventing flooding according to the third embodiment is also configured in the same manner as the shutter device 1 described above because the waterproof sheet 20, the sealing material, and the like are not described in detail. According to the embodiment, the shutter 7 'is normally housed in a basement below the ground G, and is wound up when necessary. That is, the chains 30 are attached to both ends of the slat 2 located at the uppermost position. These chains 30 and 30 are engaged with sprockets 31 and 31 provided above the doorway. Therefore, when the rotary shaft 32 to which the sprockets 31 and 31 are fixed is driven to rotate, the shutter 7 'is wound up. For example, when the brake is released, the shutter 7' is lowered by its own weight. According to the actual form shown in FIG. 2, a winding drum 33 is fixed to the rotating shaft 32, and a driving belt 34 wound around the winding drum 33 is a hydraulic piston cylinder unit to which tap water is supplied and discharged. 35 is driven.

  According to the present embodiment, the waterproof sheet 20 is provided at a predetermined height above the shutter 7 '. Therefore, when preventing flooding, drive to the position shown in FIG. This prevents water from entering the building as described above.

The present invention is not limited to the above embodiment and can be implemented in various forms. For example, the shape of the slats 2 constituting the shutters 7 and 7 'is not limited to the above-described shape, and it is apparent that the present invention can be implemented by, for example, a caterpillar shutter. In addition, although it has been described that the seal member 15 is provided on the guide members 10 and 10, a separate member for attaching the seal member 15 can be provided. Accordingly, the guide members 10 and 10 include such members. Further, it is obvious that the motor 14 can be implemented by a hydraulic motor that operates with tap water, water in a water storage tank, or the like, instead of the electric motor. The hydraulic motor includes a linear motion motor including a piston cylinder other than the rotation motor. The waterproof sheet 20 is described as being provided at a predetermined part of the shutters 7 and 7 ', but may be provided on the entire surface. Further, in the third embodiment shown in FIG. 2, when the shutter 7 'is rolled up to block the entire entrance / exit, it is attached to the lower part of the shutter 7' in order to prevent water from entering from the lower part . It is clear that this can be done.

  In the embodiment shown in FIG. 2, the shutter 7 ′ is stored in the basement below the ground G so as to be stacked by gravity. However, the shutter 7 ′ may be wound by a winding drum. it can.

  In the above description, an embodiment in which a shutter device is newly provided has been described. However, an existing shutter device can be similarly implemented. That is, when a waterproof sheet is attached to an existing shutter and a guide member as described in this embodiment is provided, a sealing material can be provided on the guide member. A shutter having a structure without a guide member can be provided with a bracket or the like corresponding to the guide member and attached with a sealing material.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the 1st Embodiment of this invention, The (a) is a front view which shows a use condition, The (b) is a perspective view which shows a part of slat which is a component of a shutter, The (c) (A) is a sectional view seen in the direction of the arrow haha, (d) is a sectional view of another embodiment seen in the direction of the arrow haha in (a). It is a front view which shows the 3rd Embodiment of this invention typically.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1 'Shutter apparatus 2 Slat 7, 7 Shutter 10 Guide member 15 Seal material 20 Waterproof sheet
35 Hydraulic piston cylinder unit

Claims (6)

Comprising a shutter to which a plurality of slats are flexibly connected, a drum on which the shutter is wound so as to be wound or unwound, and guide members for guiding both end portions of the shutter,
The shutter is provided at an entrance / exit of a building, underground facility, etc., and when the drum is driven by a motor, the shutter is driven in the vertical direction, and the entrance / exit is opened and closed,
A bendable waterproof sheet is provided on the back surface of the shutter, and a seal member is provided on the guide member so as to face the waterproof sheet. A shutter device having an infiltration prevention function, wherein the waterproof sheet is brought into pressure contact with the sealing material when acting on the surface of the shutter.   The shutter device according to claim 1, wherein the waterproof sheet is provided from the lower end portion of the shutter to a predetermined height position, and has a water immersion prevention function. A shutter in which a plurality of slats are flexibly connected, a driving member that drives the shutter, and guide members that guide both side ends of the shutter;
The shutter is provided at an entrance / exit of a building, underground facility, etc., and when the shutter stored in the basement is driven upward by the driving member, the entrance / exit is closed,
A bendable waterproof sheet is provided on the back surface of the shutter, and a seal member is provided on the guide member so as to face the waterproof sheet. A shutter door having a function of preventing inundation, wherein the waterproof sheet is pressed against the sealing material when acting on the surface of the shutter.   4. The shutter device according to claim 3, wherein the waterproof sheet is provided from the upper end of the shutter to a predetermined height position.   The shutter device according to claim 1, wherein the waterproof sheet is detachably attached to the inside of the shutter.   6. The shutter device according to claim 1, wherein the driving device for driving the shutter comprises a water pressure motor that operates with water pressure such as tap water or water in a water supply tank. apparatus.

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