JP3728071B2 - Shutter device with seat door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a metal shutter configured to divide a space such as a building passage by landing a seat plate on the lower side of the shutter body on the floor surface in association with rewinding based on detection of smoke or abnormal temperature. It relates to the device.
[0002]
[Prior art]
As the above shutter device, the shutter body winding means with metal slats connected to each other is opened based on the detection of the occurrence of fire, and the shutter body is covered with the ceiling as the weight falls. Based on the type where the seat plate is rewound from the head and the seat plate is placed on the floor surface, or based on the detection of the occurrence of a fire, the winding means of the shutter body is driven in the rewind direction to There are types that are designed to be placed on the surface.
[0003]
[Problems to be solved by the invention]
By the way, when a fire occurrence is detected, an evacuation warning is issued simultaneously with the detection of the fire occurrence, and the shutter device generally divides a space such as a building passage, and the evacuation is delayed and the fire is delayed. If it was left in the space on the site of the occurrence of the accident, the shutter body was slightly rolled up manually, evacuated through the gap between the floor and the seat, and then the shutter body was rewound. .
[0004]
However, the above evacuation operation takes time, and since evacuation is the first priority, it is easy to forget to rewind the shutter body by moving upside down. It sometimes lost its function.
[0005]
Separately from the above configuration, a blame door is permanently installed in a part of the width direction of the space such as a building passage, and any one of the shutter devices is provided in the remaining space, and the blame door and the shutter device are Some of them are provided with a so-called middle pillar between them.
[0006]
In such a shutter device, the blame can be quickly accused by opening the blame door, and the blame door is equipped with an automatic closing device, so you can never forget to close the door. Not only does this increase the overall cost of the door, but because this is a permanent installation, the actual space width becomes narrower, and the center pillar remains in a normal state with the open door and shutter body open. There was a problem that this was an obstacle to walking.
[0007]
The present invention has been made in view of such circumstances, and can evacuate immediately without rolling up the shutter main body, and there is no possibility of losing the function of the space section. An object of the present invention is to provide a shutter device that does not narrow the width and does not obstruct walking.
[0008]
[Means for Solving the Problems]
That is, the present invention is configured to divide a space such as a building passage by landing a seat plate on the lower side of the metal shutter body on the floor surface in association with rewinding based on detection of smoke or abnormal temperature. An evacuation opening for passing through the shutter body in the space section is formed in the shutter body, a fireproof sheet door that closes the opening is connected to the upper side of the opening, and the seat door is integrated with the shutter body. A metal holding member is provided so as to be able to turn obliquely upward and forward along the lower edge portion of the opening, and a space partition extends between the holding member and the lower side of the seat door. The present invention is characterized in that a sheet tension means for tensioning the seat door in the state is provided, and a magnet for magnetically attracting the periphery of the seat door to the shutter body is provided.
[0009]
According to the shutter device with a seat door according to the above configuration, in normal times, there is no shutter device in the space such as the building passage, so there is no walking obstacle at all, and The space width is not reduced.
[0010]
And in the state of the space section of the shutter main body based on the detection of fire occurrence, it is easy without taking time by opening the seat door so that the holding member on the lower side of the seat door is rotated forward and obliquely upward You can evacuate.
[0011]
Moreover, if the seat door that is opened for evacuation is released, the seat door is automatically closed by the weight of the holding member. There is no fear of being lost.
[0012]
When the lower side of the seat door connected to the upper side of the evacuation opening is simply connected to the holding member by tensioning the seat door, when the seat door is rolled up integrally with the shutter main body, the shutter main body There is a difference in the winding diameter between the door and the seat door, and the shutter body cannot be wound due to the winding phase difference. Since the tension member absorbs the winding phase difference, the seat door can be wound integrally with the shutter body.
[0013]
Further, since the periphery of the seat door is magnetically attracted to the shutter body by the magnet in the tensioned state of the seat door, the function of the space section around the evacuation opening is also ensured.
[0014]
The seat door may be directly connected to the upper side of the opening. In this case, even if the evacuation opening is formed in a rectangular shape, when the seat door is opened, the opening has a narrowed triangle. When evacuating in a shape, you will evacuate with your upper body bent.
[0015]
Therefore, preferably, along the upper edge portion of the opening, a metal holding member is provided so as to be pivotable obliquely upward and forward, and the upper edge portion of the seat door is connected to the holding member. If comprised in this way, when the evacuation opening is formed in a rectangular shape, it is possible to evacuate easily through a wide opening.
[0016]
Further, if an urging means for pulling and urging the holding member toward the seat plate is provided across the lower holding member and the seat plate, in addition to the automatic closing of the seat door by the weight of the holding member, There is an advantage that the seat door can be forcedly closed.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a shutter device with a seat door for partitioning a space P such as a passage of a building or a staircase based on detection of fire occurrence.
[0018]
Reference numeral 1 in the figure denotes a shutter body that is rewound along guide rails 2 embedded in the left and right side walls. The shutter slats 3 made of metal (for example, steel) are connected to each other, and the lowermost slats 3 are connected to each other. The metal seat plate 4 is suspended and held.
[0019]
Reference numeral 5 denotes a winding means for the shutter body 1, which is formed by connecting a driving rotation means 8 to a slat winding drum 6 via a brake device 7, and based on information from smoke or abnormal temperature detection sensor 9. , The shutter body 1 is unwound from the lintel 11 of the ceiling 10 along with its own weight drop, and the suspended seat plate 4 is landed on the floor 12 to define a space P such as a building passage. Is configured to do.
[0020]
13 is a state of a space defined by the shutter body 1, and is an evacuation opening for passing through the shutter body 1. The slat 3 of the shutter body 1 is partly cut out and formed into a rectangular shape. An edge member (see FIG. 7) 14 is provided at the notched edge of the shutter so as to enable the shutter body 1 to be wound.
[0021]
15 and 16 are metal holding members arranged along the upper and lower edges of the evacuation opening 13, and as shown in FIGS. 3 to 6, the upper holding member 15 is attached to the slat 3 and The lower side holding member 16 is provided in the seat plate portion so as to be able to rotate obliquely forward and upward via a hinge 17 in which a pivot shaft a is inclined, by cutting out a part of the seat plate 4.
[0022]
18 is a flexible sheet door that closes the evacuation opening 13, for example, on one or both sides of a heat-resistant fiber sheet such as silicon or oxalic acid-based synthetic fiber, so as to increase smoke resistance, The seat door 18 is coated with a fireproof material such as vinyl acetate, and the upper side of the seat door 18 is connected to the holding member 15 on the upper side. On the lower side of the seat door 18, a metal flat bar 19 is attached thereto. The sheet door 18 is connected to the lower holding member 16 via the sheet tensioning means 20 so as to wind the sheet door 18 integrally with the shutter body 1.
[0023]
The sheet tension means 20 is configured as follows. That is, two pulleys 21 and 21 are rotatably provided on the holding member 16 on the lower side so as to be spaced apart in the longitudinal direction of the holding member 16, while the wire 23 having the tension spring 22 is provided at the intermediate portion. It is positioned between the pulleys 21 and 21, wound around the pulleys 21 and 21, and both ends of the wire 23 are connected to the lower side of the seat door 18.
[0024]
That is, when the seat door 18 is wound together with the shutter body 1, there is a difference in the winding diameter between the shutter body 1 and the seat door 18, but the shutter body 1 and the seat door 18 are connected to the shutter body 1. The sheet door 18 can be wound integrally with the shutter body 1 by being configured to be capable of misaligning with each other in the winding direction and absorbing the phase difference of winding by the sheet tensioning means 20.
[0025]
Next, reference numeral 24 in the figure denotes a magnet provided on the periphery of the seat door 18, which magnetically attracts the periphery of the seat door 18 around the evacuation opening 13 of the steel shutter body 1. For example, when the door is made of metal such as aluminum, a magnet is also provided on the shutter body 1 side so that the peripheral portion of the seat door 18 is magnetically attracted around the evacuation opening 13.
[0026]
Reference numeral 25 denotes an urging means for attracting and urging the lower holding member 16 toward the seat plate 4, and the two holding pulleys 26 and 26 can be rotated on the lower holding member 16 at intervals in the longitudinal direction thereof. On the other hand, a wire 28 having a tension spring 27 in the middle is wound around the pulleys 26 and 26 with the spring 27 positioned between the pulleys 26 and 26, and both ends of the wire 28 are connected to the seat plate 4 side. Concatenated to
[0027]
When the hinge 17 of the holding member 15 on the upper side is attached to the metal fitting 30 on the slat 3 side via the receiving metal 29, one bolt 31 a of the attachment bolt 31 is connected to the bolt insertion hole of the receiving metal 29. On the other hand, a countersunk screw c is screwed onto the slat-side metal fitting 30 so that the inclined head is locked to the lower end edge of the metal fitting 30, and the countersunk screw c By adjusting the position, the mounting position of the receiving bracket 29 and thus the mounting posture of the holding member 15 can be finely adjusted around the bolt 31a.
[0028]
According to the shutter device with a seat door according to the above configuration, when the detection sensor 9 detects smoke or abnormal temperature, an evacuation alarm is issued based on the detection information of the fire occurrence from the detection sensor 9, and When the brake device 7 of the shutter main body winding means 5 is released, the shutter main body 1 is lowered by its own weight and is unwound from the lintel portion 11, and the seat plate 4 is landed on the floor surface 12, so that FIG. As shown in A), a space P such as a building passage is defined by the seat plate 4 and the shutter body 1.
[0029]
Here, when the evacuation is delayed and the space on the fire occurrence site is left behind, as shown in FIG. 8 (B), the holding members 15 and 16 connected to the upper and lower portions of the seat door 18 are inclined forward and upward. The seat door 18 is opened while rotating and peeling the magnetic adsorption of the seat door 18 to the shutter body 1 by the magnet 24, so that the user can evacuate easily without taking time.
[0030]
After evacuation, by releasing the hand from the opened seat door 18, the seat door 18 automatically receives the pulling and urging force of the urging means 25 due to the weight of the holding members 15 and 16. Since the seat door 18 is closed, there is no possibility of forgetting to close the seat door 18 and there is no possibility of losing the function of the space section by the shutter device.
[0031]
Further, when the seat door 18 is closed, the peripheral portion of the seat door 18 is magnetically attracted around the evacuation opening 13, so that the function of the space around the evacuation opening 13 is also ensured.
[0032]
In the above embodiment, the brake device 7 of the shutter main body winding means 5 is opened based on the detection information of the fire occurrence from the detection sensor 9, but the shutter is released based on the detection of the fire occurrence. The main body winding means 5 may be driven in the shutter main body rewinding direction, and the rewinding driving of the seat 1 may be stopped after the seat plate 4 is landed.
[0033]
Alternatively, the upper holding member 15 may be omitted, and the upper side of the seat door 18 may be directly connected to the upper side of the evacuation opening 13, and the lower holding member 16 may be pulled toward the seat plate 4 side. The biasing means 25 for biasing is not necessarily provided.
[0034]
【The invention's effect】
As described above, according to the shutter device with a seat door according to the present invention, in normal times, there is no shutter device in the space such as a building passage, so there is no walking obstacle at all. In addition, the space width is not reduced.
[0035]
Based on the detection of the fire occurrence, even if the evacuation is delayed in a state where the shutter main body divides the space such as the building passage, there is no need to take up the trouble of winding up the shutter main body, that is, time is spent. Easily evacuate without calling.
[0036]
Moreover, if the seat door that is opened for evacuation is released, the seat door is automatically closed by the weight of the holding member. There is no fear of being lost.
[0037]
In addition, the seat door is connected to the shutter body, and the lower part of the seat door is free from the shutter body so that the seat door can be wound together with the shutter body. Since the lower side of the door is connected to the holding member via the tension means, it is possible to easily tension the seat door in the state of the space section by the shutter main body, and in the tension state of the seat door, Since the periphery of the seat door is magnetically attracted to the shutter main body by the magnet, the function of the space section around the evacuation opening is also ensured.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal side view of a shutter device with a seat door.
FIG. 2 is a perspective view showing a state of a space section by a shutter body.
FIG. 3 is an explanatory view showing a sheet tensioning unit and a holding member pulling / urging unit toward the seat plate together with the seat door.
FIG. 4 is a detailed view of the sheet tensioning means and the pulling biasing means.
FIG. 5 is an explanatory view of attachment of an upper holding member.
6 is a cross-sectional view taken along line XX in FIG.
FIG. 7 is a cross-sectional plan view of an evacuation opening and a seat door.
8A is an explanatory view showing a state of a space section by a shutter body, and FIG. 8B is an explanatory view showing an open state of a seat door.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Shutter main body, 4 ... Seat board, 12 ... Floor surface, 13 ... Evacuation opening, 15, 16 ... Holding member, 18 ... Seat door, 20 ... Sheet tension | tensile_strength means, 24 ... Magnet, 25 ... Attracting biasing means, P: Space such as a building passage.

Claims (3)

Along with rewinding based on detection of smoke or abnormal temperature, the seat plate on the lower side of the metal shutter body is landed on the floor surface, and it is configured to partition the space such as the building passage, etc. The evacuation opening for passing through the shutter body is formed in the shutter body, and a fireproof sheet door that closes the opening is connected to the upper side of the opening, and the seat door is wound up integrally with the shutter body. On the other hand, along the lower edge of the opening, a metal holding member is provided so as to be able to turn obliquely upward and forward. A shutter device with a seat door, comprising: a sheet tension means for causing the shutter body to magnetically attract the periphery of the seat door to the shutter body. The sheet according to claim 1, wherein a metal holding member is provided so as to be rotatable obliquely upward and forward along the upper edge portion of the opening, and the upper edge portion of the seat door is connected to the holding member. Shutter device with door. The shutter device with a seat door according to claim 1 or 2, further comprising an urging unit that draws and urges the holding member toward the seat plate over the seat plate and the lower holding member.

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