JP2004308387A - Hanging wheel system unit and normally closed smoke-insulating fire door device using hanging wheel system unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a normally closed smoke-insulating fire door device with a speed regulating function, having four hanging wheels on one side. <P>SOLUTION: The fire door of a simple structure comprises a guide rail of a substantially C-shape in cross section disposed to tilt and the four hanging wheels disposed on one side to hang the fire door to automatically close. The fire door further comprises an automatic-closing speed regulating device. When an opening part is automatically closed, the fire door is pressed against an opening part side by a pressing means upon complete close of the door so that the smoke may also be prevented from flowing out by providing a smoke insulation member on a periphery of the opening part side in advance. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The suspension door is self-closed using a suspension system unit configured by combining a suspension unit having four wheels and a coupling unit with various types of couplings, and one of the suspension system units is used to prevent the outflow of smoke. The present invention relates to a smoke-and-fire door system configured to block.
[0002]
[Prior art]
In the case of fire doors, the weight is much greater than that of ordinary sliding doors, so if you use one wheel on one side of a normal rail and hang it back and forth, it will support half of the total weight per wheel, equivalent to wheels and rails. Although a load is required, if a four-wheeled suspension vehicle is used on one side, the weight per wheel is only one eighth, which is convenient for wheels and rails. This four-wheeled hanging door roller has been used for waterproof iron doors (see Patent Literature 1) and the like, and the four-wheeled hanging door roller is mounted at a center position between two axes of the four wheels. A device in which a suspension shaft is provided to screw the suspension door upper surface and the suspension shaft (for example, see Patent Document 2), or a wing piece is provided in the suspension door upper surface, and the suspension shaft is screwed to the wing member ( For example, see Patent Document 3).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 13-4432,
[Patent Document 2]
JP-A-08-301416, FIGS. 1 to 3
[Patent Document 3]
JP-A-09-53364, front page
[Problems to be solved by the invention]
However, the above described three examples of the four-wheeled suspension door can be used only when a guide rail having a substantially C-shaped cross section is horizontally mounted because no swing means is provided in the traveling direction. For example, when the guide rails are inclined to be used for a normally-closed sliding door, it is impossible to make all four wheels on one side contact the rails. In addition, when the sliding door is opened and closed, there is a disadvantage that noise is high in a place where the sliding door and the rail are always opened and closed because the hanging car and the rail are made of metal. The present invention has been provided for the purpose of solving such a disadvantage.
[0005]
[Means for Solving the Problems]
The present invention uses a hanging vehicle having four wheels on one side, further provides a swinging means in the traveling direction, and provides various types of couplings between the hanging vehicle and the sliding door to cope with a wide variety of sliding door applications. Solved the inconvenience. That is, in one aspect of the present invention, a four-wheeled vehicle is provided on the outside of a main body which is configured so that the axle is supported by both side plates in one of the hanging wheels, and the lower part of the main body has an even load on the four-wheeled vehicle. Is provided with a connecting hole for axially connecting a connecting member that can swing in the traveling direction at a position where the hanging wheel is hung, and the other hoisting wheel is provided between the both side plates of the hoisting wheel unit A and the four wheels described above. A rotary drive is provided on one of the shafts of the vehicle, and a closing speed control device is added via the rotary drive to constitute a suspension unit B to connect the sliding door to the suspension unit A or the suspension unit B. The upper part of the connecting part is swingable in the running direction. The connecting shaft is provided with a through hole so that it can be pivotally connected to the connecting hole of the main body by the connecting shaft, and the lower part is connected to be swingable in the direction perpendicular to the running direction. With shaft connection by shaft A connecting hole provided with a through hole so that the upper part can be pivotally connected to a lower part of the connecting element A by a connecting shaft so that the lower part can swing in the same direction as the upper part. A lower part provided with a through hole so that the upper part of the connecting tool B and a lower part of the connecting part A or a lower part of the connecting part B can be supported by the connecting shaft by the connecting shaft so that the connecting tool B and the upper part can be supported by the connecting shaft. And a connecting member C configured to be capable of bolting the sliding door itself, and a through hole provided so that the upper portion can be pivotally connected to the connecting hole of the main body by a connecting shaft so as to be swingable in the traveling direction. There are a total of four types of connecting tools D, which are configured so that the sliding door itself can be connected by bolts. First, the above-mentioned hanging unit A and the hanging unit B are freely combined, and further, the connecting device A and the connecting device B, connector C, connector D A suspension system unit is characterized in that a suspension for a sliding door according to a use is configured by axially coupling a connection unit formed by freely combining the suspension units, and one of the wheels in the suspension vehicle unit. Is a suspension system unit in which a surface layer portion in contact with the guide rail is made of a silent material, and one of these suspension system units is a suspension unit A, a suspension unit B, a coupling tool A, a coupling tool B, This is a normally-closed fire door device configured with a guide rail having a substantially C-shaped cross section using a coupling tool C. Here, the silent material refers to a material made of rubber, plastic, or a compound thereof, and is not a problem for heavy fire doors as long as it does not stop halfway due to deformation of a hanging vehicle at normal times. It is.
[0006]
The present invention is based on the assumption that the fire prevention and smoke prevention structure is formed by the three sides of the opening and the fire prevention door. When the fire prevention and smoke prevention structure can be created for the first time when it is closed, and when the fire prevention door is pressed against the smoke prevention member side when it is closed, the fire prevention and smoke prevention structure can be created for the first time. The case where a smoke member is provided and the periphery of the opening is closed on the four sides is classified as a case where a fire and smoke shielding structure can be formed for the first time, but it is assumed that a reliable smoke shielding structure can be formed in each case.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the suspension unit A, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, which shows two side plates 1, 1 and a plurality of distance collars for keeping the distance between the two side plates constant. The four wheels 4 are provided on the outside of the main body 3 integrated with the main body 2, and a lower part of the main body 3 is connected with a connecting member capable of swinging in the traveling direction at a position where an even load is applied to the four-wheeled vehicle. In this case, a connection hole 5 is provided.
[0008]
FIG. 3 is a top view of the hoisting unit B, and a portion common to the hoisting unit A is drawn in cross section. A rotary drive gear 6 is provided between the two side plates 1 and 1 and on one shaft of the four-wheeled vehicle, and a speed increasing gear train 7 is provided via the rotary drive gear 6 so that the final gear and the generator 8 A speed control device 29 is connected to a gear with a one-way clutch (not shown) provided on the shaft, and is configured so that the generator 8 rotates and brakes the suspension unit B only when the fire door is closed. It is a thing.
[0009]
4 (A) is a front view of the connecting member A, and FIG. 4 (B) is a side view thereof. The upper portion is pivotally connected by the connecting hole 5 and the connecting shaft 9 so that the upper portion can swing in the running direction. A through hole 10 is provided so that the lower portion can be pivotally supported by a connection shaft 9 so as to be swingable in a direction perpendicular to the traveling direction.
[0010]
FIG. 5 (A) is a front view of the connector B, and FIG. 5 (B) is a side view thereof. A through hole 10 is provided so that an upper portion can be pivotally connected to a lower portion of the connector A by a connection shaft 9. A through hole 10 is provided so that the lower portion can be pivotally connected by a connecting shaft 9 so as to be swingable in the same direction as the upper portion.
[0011]
6 (A) is a front view of the connecting tool C, and FIG. 6 (B) is a side view thereof. The upper part can be pivotally connected to the lower part of the connecting tool A or the lower part of the connecting part B by the connecting shaft 9. The through hole 10 is provided, and the lower portion is configured so that the sliding door itself can be bolted.
[0012]
7 (A) is a front view of the connecting member D, and FIG. 7 (B) is a side view of the connecting member D. The upper portion is pivotally connected to the connecting hole 5 and the connecting shaft 9 so as to be swingable in the running direction. A through hole 10 is provided so that the sliding door itself can be bolted to the lower part.
[0013]
When these connecting tools are used alone, the sliding door can swing only in the traveling direction and cannot swing in the direction perpendicular to the sliding door. The sliding door can swing only in the traveling direction by using the combination of the connecting tool A and the connecting tool C, and can be swung uniaxially in the direction perpendicular to the sliding door. The sliding door can swing only in the traveling direction, and can swing in two axes in the direction perpendicular to the sliding door, so that a total of three types of coupling units are formed. The above-mentioned hanging unit A, the hanging unit A and the hanging unit B are formed. By freely combining the shafts and connecting them together, a suspension system unit is completed, and a suspension system unit for a sliding door according to the intended use can be configured. In addition, the said connection tools A-D may be what kind of shape as long as a structure is the same.
[0014]
Example 2 is a normally-closed type smoke-proof fire door device as an application example using the above-mentioned hanging vehicle system unit. FIG. 8 is a front view in which a normally-closed type smoke-proof fire door device is provided at an opening of a passage, and FIG. 8 is a sectional view taken along the line BB in FIG. 8, and FIG. 10 is a sectional view taken along the line CC in FIG. The structure will be described with reference to the drawings. Of the openings 12, the upper frame 13 of the opening and the vertical frame 14 on the side of the opening of the opening are provided with an elastic smoke shielding member 15, and the fire protection on the side of the opening is provided on the side of the door. The door front side vertical frame 16 is also provided with a smoke shielding member 15 having elasticity.
[0015]
A guide rail 17 having a substantially C-shaped cross section is laid on the wall side so as to be inclined in the fire door closing direction, and a suspension unit A18 and a suspension unit B19 are provided in the inclined laying guide rail 17, and both of the suspension units are provided. This is a normally-closed type smoke-proof fire door device in which a fire door 11 is suspended by connecting a connection tool A, a connection tool B, and a connection tool C in order. Also, as shown in FIG. 11, a smoke shielding member 15 is provided on the entire width of the inside of the opening side groove wall at the lower part of the fire door 11, and the smoke shielding member 15 is configured to be grounded only when fully closed. Is constructed such that when fully closed, a fire-proof and smoke-blocking structure is formed on the four sides along the three sides of the opening and the lower part of the fire door. The inclination of the guide rail 17 is adjusted by inserting a liner 20 between the connecting tool C and the fire door 11 so that the fire door 11 is always kept horizontal with the floor.
[0016]
Next, the operation will be described. Since the guide rail 17 is installed inclined, the fire door 11 is automatically closed once opened. Then, at the time of closing, the fire door 11 is speed-controlled without being accelerated by the speed-control device 29 provided in the suspension unit B19, and is slowly closed. When fully closed, the three-sided frame provided with elasticity is provided on the three-sided opening of the opening upper frame 13, the opening door bottom side vertical frame 14, and the fire door front side vertical frame 16, and the fire door 11 is provided. However, fire and smoke cannot pass through the gap due to contact.
[0017]
Third Embodiment In the third embodiment, the surface layer portion of each of the wheels in the suspension unit used in the second embodiment that comes into contact with the guide rail 17 is made of a plastic material 21. FIG. 12 is a front view of the suspension unit A in the third embodiment. The wheels of the unit B have the same configuration. This is to reduce the noise caused by the contact between the metal of the guide rail 17 and the hanging wheel 22 when the fire door 11 is opened and closed. Even if the fire is melted by heat, the inside becomes wheels with a small diameter. The fire door 11 can be easily closed.
[0018]
In the fourth embodiment, as shown in FIGS. 13 and 14, a wedge-shaped displacement tool 23 and a rotating body 24 having parallel portions behind the fire doors 11 of the second and third embodiments as upper and lower portions as shown in FIGS. Are provided respectively. In the case of the lower part of the fire door, the anti-sway roller of the fire door 1 provided in the lower groove 25 is used as the rotating body 24, the wedge-shaped displacement tool 23 is provided on the groove wall, and the anti-sway roller is used to open the fire door 11 with the opening. It is configured to be pressed to the side. In this pressing means, since the fire door 11 is strongly pressed by the smoke blocking member 15 when fully closed, the closing property of the gap becomes higher and the smoke blocking effect increases. In this case, the displacement tool 23 may be a wedge-shaped member having a parallel portion behind or a wedge-shaped member having no parallel portion.
[0019]
In the fifth embodiment, as shown in FIG. 15, instead of the pressing means in the upper part of the fourth embodiment, the crank arm 26, the turning bracket 27 and the pressing bracket 28 are used to press using a rotational moment. When the rotating body at the long rod end of the crank arm 26 hits the turning bracket 27 when the crank arm 26 is closed, the crank arm 27 rotates and the rotating body at the short rod end contacts the pressing bracket 28 to gradually move the fire door 11 to the opening side. And the gap is securely closed when fully closed. In this case, the pressing force functions to reliably press the fire door 11 toward the opening even with a small closing force due to the principle of leverage.
【The invention's effect】
Since the device of the present invention uses a guide rail inclined in the direction of closing the fire door, there is no need to provide an automatic closing device, so that the device is inexpensive and the door weight is distributed to each wheel of the suspension unit. It is only necessary to support a small load as compared with an ordinary single suspension vehicle, so that the life of the suspension vehicle is prolonged. In addition, the thickness of the guide rail having a substantially C-shaped cross section can be reduced, and the manufacturing cost can be reduced. In addition, a smoke barrier member having elasticity is provided between the periphery of the opening three-sided frame and the fire door, and the fire door is connected biaxially in the direction perpendicular to the traveling direction, so that the fire door covers the entire periphery of the opening. Since the fire door is pressed by the pressing means when the door is fully closed, the opening and the fire door are more closely contacted with each other, and the smoke shielding effect is enhanced. In addition, when the fire door is closed, the speed control means is provided, so that the fear caused by acceleration when the fire door is closed is released, and there is no worry about finger jamming.
[Brief description of the drawings]
FIG. 1 is a front view of a suspension unit A. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1. FIG. 3 is a top view of a suspension unit B. FIG. 4A is a front view of a coupling A, and FIG. 5A is a front view of the connector B, FIG. 6B is a side view of the connector B, FIG. 6A is a front view of the connector C, and FIG. 7 (A) is a front view of the connecting device D, and FIG. 8 (B) is a side view of the connecting device D. [FIG. 8] FIG. FIG. 10 is a cross-sectional view taken along a line BB in FIG. 10; FIG. 11 is a vertical cross-sectional view of a lower part of a fire door according to a second embodiment;
FIG. 12 is a front view of a hanging unit A according to a third embodiment; FIG. 13 is a perspective view of a pressing unit at an upper part of a fire door of a fourth embodiment; FIG. 14 is a cross-sectional view of the pressing unit at a lower part of the fire door; Perspective view of the pressing means at the upper part of the fire door of Example 5
1, side plate 2, distance collar 3, main body 4, wheels 5, connecting hole 6, rotary drive gear 7, speed increasing gear train 8, generator 10, through hole 11, fire door 12, opening 13, upper opening frame 14, opening door bottom side vertical frame 15, smoke shielding member 16, opening door front side vertical frame 17, guide rail 18, suspension unit A
19. Suspension unit B
20, liner 21, plastic material 22, suspension wheel 23, displacement tool 24, rotating body 25, lower groove 26, crank arm 27, turning bracket 28, pressing bracket 29, speed governor

Claims (7)

A four-wheeled vehicle is provided on the outside of a main body, which is configured so that the axle is supported by both side plates on one of the suspension wheels, and a lower part of the main body is swung in a traveling direction at a position where an even load is applied to the four-wheeled vehicle. A connecting hole for connecting the movable connecting member to the shaft is provided as a hoist unit A, and the other hoist is rotated between both side plates of the hoist unit A and on one shaft of the four-wheeled vehicle. A driving body is provided, and a closing speed control device is added via the rotary driving body to form a suspension unit B. An upper part of a connection tool for connecting the sliding door to the suspension unit A or the suspension unit B is provided. A through-hole is provided so that the connection shaft can be pivotally connected to the connection hole of the main body by the connection shaft so as to be swingable in the traveling direction, and the lower portion can be pivotally connected by the connection shaft so as to be swingable in a direction perpendicular to the traveling direction. With through holes A through hole is provided so that the connected connector A and the upper portion can be pivotally connected to the lower portion of the connector A by the connection shaft, and the lower portion can be pivotally connected to the upper portion by the connection shaft so as to swing in the same direction as the upper portion. As described above, the through hole is provided so that the upper part of the connecting tool B provided with the through hole and the upper part can be pivotally connected to the lower part of the connecting tool A or the lower part of the connecting part B by the connecting shaft, and the lower part can bolt the sliding door itself. A through hole is provided so that the connecting member C and the upper portion can be pivotally connected to the connecting hole of the main body by a connecting shaft so that the upper portion can swing in the running direction, and the lower portion connects the sliding door itself with bolts. There are a total of four types of connecting devices D, which are configured so as to be capable of being connected. First, the above-mentioned hanging unit A and the hanging unit B are freely combined with each other, and further, the connecting device A, the connecting device B, the connecting device C, and the connecting device. Tool D can be combined freely Tsukuruma system unit was the hanging car for suspending the sliding door according to the application by the axis connecting the finished coupling unit, characterized in that it is configured 2. The suspension vehicle system unit according to claim 1, wherein at least a surface layer portion of each wheel of the suspension vehicle unit that is in contact with the rail is made of a silent material. A hanging door type fire door that forms a fire and smoke prevention structure with a door top side vertical frame, an opening upper frame, an opening door side vertical frame, and a three-way frame that the fire door comes into contact with when fully closed. , A guide rail having a substantially C-shaped cross section is laid so as to be inclined in the direction of closing the fire door, and the suspension unit A and the suspension unit B are provided in the inclined laying guide rail. A normally closed type smoke and fire prevention system using the hanging vehicle system unit according to claim 1, wherein the fire door is hung by combining the A, the connecting tool B, and the connecting tool C in order by shaft connection. Door device The above-described three-sided frame of the door-side vertical frame, the opening upper frame, and the opening-side vertical frame that the fire door abuts when fully closed, or the part of the fire door that contacts the three-sided opening frame when fully closed. 4. A normally-closed type smoke-proof fire door device using a suspension vehicle system unit according to claim 3, wherein a smoke-shielding member is provided on one of the sides to further enhance the smoke-shielding property. A smoke-blocking member is provided on the lower side of the fire door so as to be in contact with the ground when the fire door is fully closed. A normally closed smoke-proof fire door device using the suspension vehicle system unit according to claim 3 or 4. 6. The normally closed type smoke and fire door apparatus according to any one of claims 3 to 5, wherein the fire door is pressed against the opening when the door is fully closed. A normally-closed smoke and fire door system using a suspension vehicle system unit The pressing means is rotatable on the upper surface of the fire door, and has a length difference between the fulcrum and a crank lever having a rotating body at both ends. The rotating crank lever main body and the same horizontal position as the crank lever on the opening upper frame side. By closing the fire door, the turning lever on the crank rod long rod side comes into contact with the turning bracket and the crank lever pivots on the rotating body side at the other end of the crank lever, and the fire door comes to the opening side. 7. The hanging vehicle system unit according to any one of claims 3 to 6, wherein the fire door is configured to be pressed toward the opening when fully closed by a pressing bracket for holding down. Normally closed smoke and fire door system

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