JP2001132363A - Opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing device appropriately securing the airtightness. SOLUTION: A fireproof screen device 1 as the opening/closing device is provided with guide rails 3a, 3b positioned in the both sides of a closing counterpart 2 and a closing body 11 movable along the guide rails 3a, 3b. Narrow and long sheet type expansion bodies 18 are attached to the both side edges of the closing body 11. The expansion bodies 18 are expanded by heating and fill a clearance 13 between the closing body 11 and the guide rails 3a, 3b so as to fix the closing body 11 to the guide rails 3a, 3b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening and closing device for opening and closing a part to be closed, such as a shutter device, a door device, a sliding wall device, or a fire-resistant screen device.

[0002]

2. Description of the Related Art Conventionally, an opening / closing device such as a fire-resistant screen device for preventing a fire from spreading in a fire has, for example, guide rails located on both sides of a portion to be closed such as an opening and extending in the longitudinal direction of these guide rails. It has a closure movable along. In the event of a fire, the closed body moves while being guided by the guide rail, and the closed part is closed by the moved closed body.

[0003]

The opening / closing device such as a refractory screen device having such a configuration prevents the passage of smoke, flame and the like even when it is subjected to wind pressure or the like due to hot air from a flame, and provides airtightness. Must be properly secured.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to provide a switchgear capable of appropriately securing airtightness with a simple configuration using an expandable body.

[0005]

According to a first aspect of the present invention, there is provided an opening / closing device provided with a closing body capable of closing a closed portion and at least a part of a periphery of the closed portion, wherein the closed portion is in a closed state. Sometimes a supporting portion located at a position facing the closing body,
An inflatable body attached to the closing body and expanding when the closed portion is in a closed state to fix the closing body to the supporting portion.

[0006] In this configuration, since the inflatable body expands and fixes the closing body to the supporting portion, the closing body does not separate from the supporting portion even when it is subjected to wind pressure or the like. Airtightness is appropriately secured.

The opening / closing device according to a second aspect of the present invention is provided with a closing body capable of closing the portion to be closed and at least a part of the periphery of the portion to be closed, and a gap with the closing body when the portion to be closed is closed. And an inflating body attached to the closing body, which expands when the closed part is closed to fill the gap.

In this configuration, since the inflatable body expands to fill the gap between the closing body and the support portion, airtightness can be appropriately secured with a simple configuration using the inflatable body.

According to a third aspect of the present invention, there is provided the opening and closing device according to the first or second aspect, wherein the closing member is provided so as to be movable along the portion to be closed, and the supporting portion is provided in the moving direction of the closing member. It is a guide rail located at a position facing both side edges.

In this configuration, the airtightness between the side edges of the closing body and the guide rail can be appropriately secured.

According to a fourth aspect of the present invention, in the opening / closing device according to the first or second aspect, the closing member is provided so as to be movable along the portion to be closed, and the support portion is provided in the moving direction of the closing member. It is a lintel located at a position facing the base end side.

With this configuration, it is possible to properly secure airtightness between the base end side of the closing body and the lintel.

The opening / closing device according to a fifth aspect is provided so as to be movable along the closed portion, and a closing body capable of closing the closed portion, and a moving direction of the closing body when the closed portion is in a closed state. And an inflatable body which is attached to the lintel and is inflated when the closed portion is closed to fix the closed body in the lintel. is there.

In this configuration, since the inflatable body expands and fixes the closing body to the lintel, the closing body does not separate from the lintel even when subjected to wind pressure or the like. Airtightness is appropriately secured.

According to a sixth aspect of the present invention, there is provided an opening / closing device movably provided along a portion to be closed, and a closing body capable of closing the portion to be closed, and a closing direction of the closing body when the portion to be closed is closed. The lintel is provided with a lintel located at a position facing the base end side with a gap therebetween, and an inflatable body attached to the lintel and which expands and fills the gap when the closed portion is in a closed state.

In this configuration, since the inflatable body expands and fills the gap between the closing body and the lintel, airtightness can be appropriately secured with a simple configuration using the inflatable body.

According to a seventh aspect of the present invention, in the opening and closing device according to the fifth or sixth aspect, the inflatable body is attached in a state where the inflatable body is set so as to prevent contact with the moving closing body. Things.

In this configuration, since the contact between the inflatable body and the moving closing body is prevented, it is possible to prevent the inflatable body from being rubbed.

An opening and closing device according to an eighth aspect of the present invention is the opening and closing device according to any one of the fifth to seventh aspects, further comprising mounting means for positioning and fixing the inflatable body.

In this configuration, the inflatable body can be easily positioned and fixed by using the attaching means.

The opening / closing device according to a ninth aspect is provided so as to be movable along the portion to be closed, and a closing body that closes the portion to be closed when a tip end in a moving direction comes into contact with a surface to be contacted; An inflatable body that expands so as to fill a gap generated between the distal end side in the movement direction of the closed body and the contacted surface when the closed portion is in a closed state.

In this configuration, since the inflatable body expands and fills the gap between the front end side in the moving direction of the closing body and the contact surface, airtightness is appropriately secured with a simple configuration using the inflatable body. You.

According to a tenth aspect of the present invention, there is provided the opening and closing device according to the ninth aspect, wherein the inflatable body is attached to a distal end side in a moving direction of the closing body.

In this configuration, since the inflatable body is attached to the distal end side of the closing body, the gap between the distal end side of the closing body and the surface to be contacted is properly filled.

The opening and closing device according to the eleventh aspect is provided so as to be movable along the portion to be closed, and a closing member capable of closing the portion to be closed, and a contact member provided at a front end side in the moving direction of the closing member. A holding part, a contact body that is held by the contact body holding part so as to protrude from the contact body holding part, and that comes into contact with the contact surface when the closed part is in a closed state, and that expands when the closed part is in a closed state. And an inflating body that presses and urges the contact body.

In this configuration, since the inflatable body expands and presses and biases the contact body, the contact body is appropriately protruded from the contact body holding portion. Is secured.

According to a twelfth aspect of the present invention, in the switchgear according to any one of the first to eleventh aspects, the inflatable body has a longitudinal direction, and extends from one end of the longitudinal direction to the other end. It is set to expand stepwise.

In this configuration, the expandable body expands stepwise, so that the airtightness is more appropriately secured.

According to a thirteenth aspect of the present invention, in the switchgear according to any one of the first to twelfth aspects, the expansion body expands when a predetermined expansion temperature is reached.

Since the expansion body expands when it reaches a predetermined expansion temperature, it can be easily set so as to appropriately expand, for example, at the time of fire.

According to a fourteenth aspect of the present invention, in the opening and closing device according to any one of the first to thirteenth aspects, the closing body is at least partially formed of a sheet material.

Since at least a part of the closure is formed of a sheet material, the construction is simpler than, for example, a configuration in which the entire closure is formed of metal slats.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a first embodiment of a switchgear of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a fire-resistant screen device as an opening / closing device. The fire-resistant screen device 1 normally opens a closed part 2 such as an emergency exit, which is an opening, and opens the door in a fire. The closed portion 2 is closed to prevent the spread of fire and the diffusion of smoke.

The refractory screen device 1 includes a closed part 2
Guide rails 3a and 3b as a pair of left and right elongate supporting parts having a longitudinal direction in the vertical direction, which are located on both sides of the guide rails, and each of the guide rails 3a and 3b is formed in a substantially U-shaped cross section, The screen 4 stands upright on the floor 4 as a surface, and the upper end is inserted into the screen box 5.

The screen box 5 has a longitudinal direction in the horizontal direction, and an elongated rectangular opening 6 is formed on the lower surface along the longitudinal direction of the screen box 5. The upper end of each guide rail 3a, 3b is inserted.

Further, inside the screen box 5,
At the position along the longitudinal direction of the opening 6 on the upper surface of the lower surface, a pair of front and rear elongated lintels 9a and 9b are provided as a pair of front and rear elongated supporting portions which are located in a state of being spaced apart from each other in the width direction of the opening 6 Each lintel 9a, 9b is formed in a substantially L-shaped cross section.

Further, inside the screen box 5, there is rotatably provided a sheet winding body 10 composed of a roller or the like whose axial direction coincides with the longitudinal direction of the screen box 5. A base end of a closing sheet body 11 as a flexible closing body is fixed.

The sheet winding body 10 is connected to driving means such as a motor (not shown). When the sheet winding body 10 rotates in one direction, the closing sheet body 11 is lowered by rewinding, and the other sheet winding body 10 is lowered. When rotating in the direction, the closing sheet body 11 is raised by winding.

When the sheet winding body 10 rotates, the closing sheet body 11 is appropriately guided to the pair of left and right guide rails 3a and 3b through the opening 6 by the pair of front and rear lintels 9a and 9b. Further, the closing sheet body 11 is smoothly moved up and down by being guided along the longitudinal direction by the pair of left and right guide rails 3a and 3b. A gap 13 exists between the closing sheet body 11 and the guide rails 3a and 3b, and the closing sheet body 11 and the lintel
A gap 14 exists between 9a and 9b.

Here, the closing sheet body 11 is formed of a substantially rectangular sheet material corresponding to the portion 2 to be closed, and this sheet material is, for example, a non-combustible fabric such as glass cloth or silica cloth, or And a non-combustible fabric coated or sprayed with a fire-resistant paint or the like. In cases other than fire and smoke applications, the sheet material may be formed of a synthetic resin sheet such as a vinyl chloride sheet or a urethane sheet, a rubber sheet, a non-combustible cloth, or the like.

The closing sheet 11 is lowered along the closed portion 2 by rewinding by the sheet winding 10 in the event of a fire to close the closed portion 2.

When the closed portion 2 is in the closed state, both side edges along the moving direction of the closing sheet body 11, that is, both side edges along the up-down direction are, as shown in FIG. , 3b are inserted into the inside from the insertion port 15 formed along the longitudinal direction on the opposing surfaces of each other, and are located in the accommodating portion 16 communicating with the insertion port 15. In addition, this accommodation part 16
Are located between the bent plate portions 17 which are bent inside the guide rails 3a and 3b and are opposed to each other. A space 16a communicating with the housing portion 16 exists on the side opposite to the opposing surface of the two bent plate portions 17.

An elongated, sheet-shaped, flexible inflatable body 18 having a longitudinal direction in the up-down direction is located along the entire length of each side edge portion of the closed sheet body 11 located in the housing portion 16. In this state, it is attached with an adhesive or the like.

The inflatable body 18 is fixedly attached to the closing sheet body 11 so as to move integrally with the closing sheet body 11, and has both side edges located in the accommodating portion 16 of the closing sheet body 11. It is located in a state of being evenly distributed on each of the back surfaces.

The expansion body 18 is formed of an elongated rectangular thin sheet expansion material which expands when heated to a predetermined expansion temperature, for example, a temperature of about 150 ° C. This expandable material is made of a special heat-resistant fiber and a special graphite and formed into a sheet with a heat-resistant binder and has flexibility. For example, a sodium silicate-based or graphite-based fire-resistant foam material is used.

On the other hand, a weight 20 as an elongated contacting body which is in contact with the floor surface 4 is attached to the lower end of the closing sheet 11 in the moving direction, in a state where the weight 20 is positioned over the entire width. When the closing portion 2 is in the closed state, both ends in the longitudinal direction of the weight body 20 that is in contact with the floor surface 4 are located in the accommodation portions 16 of the guide rails 3a and 3b.

Next, the operation of the first embodiment will be described.

In the refractory screen device 1, the closed sheet body 11 is normally wound around the sheet winding body 10 together with the expansion body 18, and the closed part 2 is open. When the closed portion 2 is in the open state, which is the normal state, the weight body 20 is located between the lintels 9a and 9b as shown by the two-dot chain line in FIG.

For example, when a fire occurs, the closing sheet
11 and the expansion body 18 are lowered by rewinding the sheet winding body 10, the weight body 20 comes into contact with the floor surface 4, and the closed part 2 is closed.

When the expansion body 18 is heated by the heat from the flame, smoke and the like and reaches the expansion temperature, the expansion body 18 expands and the gap 13 is filled as shown in FIG. Also,
By the expanded expandable body 18, both side edges of the closed sheet body 11 are fixedly supported by the guide rails 3a and 3b.

Therefore, even when the closing sheet body 11 receives wind pressure or the like due to hot air from a flame, the expanded expanding body
Since the closing sheet body 11 is fixed to the guide rails 3a, 3b at 18, both side edges of the closing sheet body 11 are guided by the guide rails.
The airtightness can be appropriately secured with a simple configuration by the expansion body 18 without falling out of the inside of 3a, 3b.

Further, since the gap 13 is filled with the inflated inflatable body 18, flames and smoke from the fire side do not pass through the gap 13. The airtightness between the body 11 and the guide rails 3a and 3b can be appropriately secured.

Further, since the expansion body 18 is attached to the closing sheet body 11 in a state where the expansion body 18 can be wound up and rewinded, the expansion body 18 is normally provided together with the closing sheet body 11 together with the sheet winding body 10.
As a result, the expansion body 18 is protected and the aging deterioration of the expansion body 18 can be prevented as compared with a configuration in which the entire expansion body is exposed.

It should be noted that a configuration using an expansion body 21 shown in FIGS. 5 and 6, which is different from the expansion body 18 in the first embodiment, may be used.

[0057] Enclosing members 22 such as an elongated fire-resistant cloth bag are attached to both side edges of the closing sheet body 11 shown in FIG. The inflatable body 21 is housed in the bag portion 23. The entire inflatable body 21 is enveloped by an envelope member 22.

The expandable body 21 is formed of a granular expandable material which expands when heated to a predetermined expansion temperature, for example, a temperature of about 150 ° C. This expandable material is made of a special heat resistant fiber and a special graphite made of a heat resistant binder. For example, it is made of a flexible material, such as a sodium silicate-based or graphite-based fire-resistant foam material.

When the expanding body 21 shown in FIG. 5 is heated by heat from a flame, smoke, or the like, it expands as shown in FIG.
The wrapping member 22 extends, and the wrapping member 22 is
3 and 4 by filling the gaps 13 and 13 with the tip of FIG.
The same operation and effect as those of the expansion body 18 shown in FIG. Further, since the inflatable body 21 is encapsulated by the enclosing member 22, the inflatable body 21 is protected, the rubbing of the inflatable body 21 can be prevented, and the flame does not directly hit the inflatable body 21. Furthermore, since the inflatable body 21 is located in the bag 23 protruding from the side edge of the closing sheet body 11,
The inflatable body 21 enters the space 16a on the surface opposite to the opposing surface of the two folded plate portions 17 due to the expansion, and the extended enclosing member 22 and the two folded plate portions 17 are securely engaged with each other. Sheet body 11
From the inside of the guide rails 3a and 3b can be effectively prevented.

Further, a configuration using an expansion body 26 shown in FIGS. 7 and 8, which is different from the expansion body 18 in the first embodiment, may be used.

The inflatable body 26 shown in FIG. 7 has a different mounting position from the inflatable body 18 shown in FIG. 3, and is attached to both side edges outside the housing portion 16 of the closing sheet body 11. The expanding member 26 shown in FIG. 7 is different from the expanding member 18 shown in FIG.
a, 27b.

When the expanding body 26 shown in FIG. 7 is heated by heat from a flame, smoke, or the like, it expands as shown in FIG.
The wrapping member 22 extends, and the wrapping member 22 is
, And fills the gaps 13, 13 to provide the same operation and effect as the expansion body 18 shown in FIGS. 3 and 4. Further, since the inflatable body 26 is wrapped by the wrapping members 27a and 27b,
6, protection of the expansion body 26 can be prevented, and the flame does not directly hit the expansion body 26. In addition, the expansion body
26 is located outside the accommodation section 16 of the guide rails 3a and 3b,
The guide rails 3a and 3b do not hinder the guidance of the closing sheet body 11. The inflatable body 26 may be formed of a granular inflatable material, and although not shown, the inflatable body 18 of FIG. 3 may be covered by a corresponding covering member.

Further, a configuration using an expansion body 31 shown in FIG. 9 which is different from the expansion body 18 in the first embodiment may be used.

The expansion body 31 shown in FIG. 9 is different from the expansion body 18 shown in FIG. 3 in that the expansion temperature is set such that the expansion body expands stepwise from one end in the longitudinal direction to the other end in the longitudinal direction. Have been.

That is, the inflatable body 31 is, for example, a first inflatable member 32, a second inflatable member 33, and a third inflatable member 34, each of which has an elongated, sheet-like flexibility and different expansion temperatures. It consists of.

The first inflating member 32 is located above the side edge of the closing sheet body 11, the second inflating member 33 is located at the vertical middle part of the side edge of the closing sheet body 11, The third expansion member 34 is located below the side edge of the closing sheet body 11. The expansion temperature of the first expansion member 32 is set lower than the expansion temperature of the second expansion member 33. The expansion temperature of the second expansion member 33 is set lower than the expansion temperature of the third expansion member 34.

Since the inflatable body 31 shown in FIG. 9 is composed of the first inflatable member 32, the second inflatable member 33, and the third inflatable member 34, in the event of a fire, the inflatable body 31 is stepped downward from above. Therefore, the gap 13 can be filled according to the smoke that spreads from above, and the smoke can be effectively prevented from passing through. Further, the expansion body 31 of FIG. 9 also expands when heated by heat from a flame, smoke, or the like, and has the same effect as the expansion body 18 shown in FIGS.

Although not shown, the inflatable body 21 and the inflatable body 26
Similarly, it is possible to adopt a configuration in which the expansion temperature is set so as to expand stepwise.

In each of the above embodiments, the configuration has been described in which the inflatable members 18, 21, 26, 31 are attached to the front and back surfaces of the closing sheet member 11, respectively.
May be attached to only one of the front and back surfaces.

Next, the structure of a switchgear according to a second embodiment of the present invention will be described with reference to the drawings. The same structural parts as those in the first embodiment will be described with the same reference numerals.

The fire-resistant screen device 41 as an opening / closing device shown in FIGS. 10 and 11 is different from the opening / closing device in the first embodiment in the expansion member 42 different from the expansion member 18.
It has.

The inflatable body 42 is attached to the base end of the closing sheet body 11 in the moving direction, and is located between the lintels 9a and 9b when the closed portion 2 is in the closed state. That is, the closing sheet body 11
At the portion of the base end side between the lintels 9a and 9b in the event of a fire, an elongated sheet-shaped flexible inflatable body 42 having a horizontal longitudinal direction is attached so as to be positioned over the entire width. I have.

As shown in FIG. 12, the inflatable body 42 is fixedly attached to the closing sheet body 11 so as to move integrally with the closing sheet body 11, and a portion near the base end of the closing sheet body 11 is provided. It is located only on the surface.

The expansion member 42 is, like the expansion member 18 of FIG. 3, an elongated rectangular and thin sheet-like expansion member which expands when heated to a predetermined expansion temperature, for example, about 150 ° C. Is formed. This expandable material is made of a special heat-resistant fiber and a special graphite and formed into a sheet with a heat-resistant binder and has flexibility. For example, a sodium silicate-based or graphite-based fire-resistant foam material is used.

Next, the operation of the second embodiment will be described.

In the refractory screen device 41, the closed sheet body 11 is normally wound around the sheet winding body 10 together with the expansion body 42, and the closed part 2 is open. When the closed portion 2 is in the open state, which is the normal state, the weight body 20 has the lintel 9a,
Located between 9b.

For example, if a fire occurs, the closing sheet
11 is lowered by rewinding the sheet winding body 10, the weight body 20 comes into contact with the floor surface 4, and the closed part 2 is closed.

When the expander 42 is heated by the heat from the flame, smoke and the like and reaches the expansion temperature, the expander 42 expands and the gap 14 is filled as shown in FIG. Also, due to the inflated inflatable body 42, a portion of the closed sheet body 11 located between the base end lintels 9a and 9b is one of the lintels 9b.
As a result, the base end side of the closing sheet body 11 is fixedly supported by the lintels 9a and 9b.

Therefore, even when the closing sheet body 11 receives wind pressure or the like due to hot air from a flame, the expanded expanding body
Since the closing sheet body 11 is fixed to the lintels 9a and 9b at 42, since the closing sheet body 11 does not descend further excessively, for example, both side edges located in the accommodation portion 16 of the closing sheet body 11 Wrinkles and the like are prevented from forming in the part, and the closed sheet body
The airtightness between 11 and the guide rails 3a, 3b can be appropriately secured.

Further, since the gap 14 is filled with the expanded inflatable body 42, flames, smoke and the like from the fire side do not pass through the gap 14, and the simple structure of the inflatable body 42 enables the closing sheet. Airtightness between the body 11 and the lintels 9a and 9b can be appropriately secured.

Furthermore, since the inflatable body 42 is normally wound around the sheet winding body 10 together with the closing sheet body 11, the inflatable body 42 is protected compared to a configuration in which the entire inflatable body is exposed. 42 aging can be prevented.

It should be noted that a configuration using an expansion body 46 shown in FIGS. 14 and 15 which is different from the expansion body 42 in the second embodiment may be used.

An enclosing member 47 such as an extensible and fire-resistant elongated sheet piece is attached to a portion of the base end side of the closing sheet body 11 shown in FIG. 14 which is located between the lintels 9a and 9b in the event of a fire. The bag portion 48 is formed in a bulging shape toward the front,
The inflatable body 46 is accommodated in the bag portion 48. This expanded body
The whole 46 is covered by a covering member 47.

The expansion body 46 is formed of a granular expansion material which expands when heated to a predetermined expansion temperature, for example, a temperature of about 150 ° C. This expansion material is made of a special heat resistant fiber and a special graphite. For example, it is made of a flexible material, such as a sodium silicate-based or graphite-based fire-resistant foam material.

The expansion body 46 shown in FIG.
When heated by heat from smoke or the like, it expands as shown in FIG. 15, and has the same operation and effect as the expanding body 42 shown in FIGS. Further, since the inflatable body 46 is encapsulated by the enclosing member 47, the inflatable body 46 is protected, the rubbing of the inflatable body 46 can be prevented, and the flame does not directly hit the inflatable body 47.

In each of the above embodiments, the configuration has been described in which the inflatable members 42 and 46 are attached only to the front surface of the closing sheet member 11, but only the back surface of the closing sheet member 11 or the front and back surfaces thereof are provided. An attached configuration may be used.

Although not shown, the inflatable body 42 of FIG. 12 may be covered by a corresponding covering member.

Further, although not shown, a configuration in which the expansion bodies 42 and 46 and the expansion bodies 18, 21, 26 and 31 are appropriately combined and attached may be adopted. With this configuration, the gap 13 is formed by the expanded expansion body. , 14 are buried, so that the airtightness can be further improved and the fire and smoke prevention performance can be improved.

Next, the configuration of a third embodiment of the switchgear of the present invention will be described with reference to the drawings. The same structural parts as those in the first embodiment will be described with the same reference numerals.

The fire-resistant screen device 51 as an opening / closing device shown in FIGS. 16 and 17 is different from the opening / closing device in the first embodiment in the expansion member 52 different from the expansion member 18.
It has.

The inflatable body 52 is formed in a flexible and elongated sheet shape, and is fixed to each of the planar facing surfaces of the lintels 9a and 9b along the longitudinal direction of the lintels 9a and 9b, respectively. Attached. As shown in FIG. 18, the expansion body 52 is positioned and fixed horizontally by mounting means 53 such as a double-sided tape or an adhesive. The length of the expansion body 52 is substantially the same as the length of the lintels 9a and 9b.

The expansion member 52 is, like the expansion member 18 of FIG. 3, an elongated rectangular and thin sheet-like expansion member which expands when heated to a predetermined expansion temperature, for example, a temperature of about 150 ° C. Is formed. This expandable material is made of a special heat-resistant fiber and a special graphite and formed into a sheet with a heat-resistant binder and has flexibility. For example, a sodium silicate-based or graphite-based fire-resistant foam material is used.

Next, the operation of the third embodiment will be described.

In the refractory screen device 51, the closing sheet 11 is normally wound around the sheet winding 10 and the closed portion 2 is open. When the closed portion 2 is in the open state, which is the normal state, the weight body 20 is located between the lintels 9a and 9b.

For example, when a fire occurs, the closing sheet
11 is lowered by rewinding the sheet winding body 10, the weight body 20 comes into contact with the floor surface 4, and the closed part 2 is closed.

When the expansion body 52 is heated by the heat from the flame, smoke and the like and reaches the expansion temperature, the expansion body 52 expands and the gap 14 is filled as shown in FIG. Further, the portion of the closing sheet body 11 located between the lintels 9a and 9b on the base end side is fixedly supported by the lintels 9a and 9b by the expanded inflatable body 52.

Therefore, even when the closing sheet body 11 receives wind pressure or the like due to the hot air from the flame, the expanded expanding body
Since the closing sheet body 11 is fixed to the lintels 9a and 9b at 52, the closing sheet body 11 does not descend further excessively. For example, both side edges located in the accommodation portion 16 of the closing sheet body 11 Wrinkles and the like are prevented from forming in the part, and the closed sheet body
The airtightness between 11 and the guide rails 3a, 3b can be appropriately secured.

Further, since the gap 14 is filled with the inflated inflatable body 52, flames, smoke, etc. from the fire side do not pass through the gap 14, and the simple structure of the inflatable body 52 enables the closing sheet. Airtightness between the body 11 and the lintels 9a and 9b can be appropriately secured. Furthermore, since the inflatable body 52 is attached to the facing surfaces of the forearms 9a and 9b, which are opposite to each other, the inflatable body 52 is located at a position where it is difficult to see, so that the appearance of the inflatable body 52 can be prevented from being damaged.

In the above embodiment, the expansion member
52 has been described with respect to a configuration in which it is positioned and fixed by mounting means 53 such as a double-sided tape.
As shown in the figure, instead of the mounting means 53 such as a double-sided tape, the mounting means 54 such as a plurality of screws is screwed at positions equidistant from each other in the longitudinal direction of the lintels 9a and 9b, thereby positioning. A fixed configuration may be used.

Further, a configuration using an expansion body 56 shown in FIGS. 23 and 24 which is different from the expansion body 52 in the above embodiment may be used.

A wrapping member 57 such as an elongated fire-resistant cloth bag is attached to the facing surfaces of the lintels 9a and 9b of FIG. 23 so that the bag portion 58 faces inward. It is formed in a swelling shape, and the inflatable body 56 is accommodated in the bag portion 58. The whole of the expansion body 56 is covered by a covering member 57.

The expansion body 56 is formed of a granular expansion material which expands when heated to a predetermined expansion temperature, for example, a temperature of about 150 ° C. This expansion material is made of a special heat resistant fiber and a special graphite. For example, it is made of a flexible material, such as a sodium silicate-based or graphite-based fire-resistant foam material.

The expansion body 56 shown in FIG.
When heated by heat from smoke or the like, it expands as shown in FIG. 24, and has the same effect as the expanding body 52 shown in FIGS. Further, since the inflatable body 56 is encapsulated by the enclosing member 57, the inflatable body 56 is protected, the abrasion of the inflatable body 56 can be prevented, and the flame does not directly hit the inflatable body 58. Although not shown, the configuration may be such that the inflatable body 51 of FIG. 18 is covered by a corresponding covering member.

In the above embodiment, the expansion member
52 has been described with respect to a configuration in which the lintels 9a and 9b are attached to each of the planar opposing surfaces using the attaching means 53 and 54, for example, the setting is made such that contact with the closing body 11 during movement is prevented. The configuration may be as follows.

That is, for example, as shown in FIG.
On the flat facing surfaces of the lintels 9a and 9b, an accommodating frame body 60 having a U-shaped cross section whose opposing surfaces are opened is attached. A configuration in which the surface is positioned slightly inside and accommodated may be employed.
When heated by heat from a flame, smoke, or the like, the expansion body 61 shown in FIG. 25 also expands as shown in FIG. 26, and has the same operation and effect as the expansion body 52 shown in FIGS. .
Further, since the expansion body 61 does not come into contact with the moving closing body 11, it is possible to prevent the expansion body 61 from being rubbed by the contact with the closing body 11.

For example, as shown in FIG. 27, an accommodation recess 62 having a U-shaped cross section is formed by bending on the upper side of the flat facing surfaces of the lintels 9a and 9b.
For example, a configuration may be employed in which a sheet-shaped inflatable body 63 is accommodated therein with its surface positioned slightly inside. And this FIG.
When expanded by heat from flame, smoke, or the like, the expansion body 63 expands as shown in FIG. 28, and has the same operation and effect as the expansion body 52 shown in FIGS. Also, since the inflatable body 63 does not come into contact with the moving closing body 11, the closing body
It is possible to prevent the expansion body 63 from being rubbed by the contact with the expansion body 11.

Further, as shown by a two-dot chain line in FIG. 27, a configuration may be employed in which a part of the opening surface opened toward the inside of the accommodation recess 62 is closed by a closing plate portion 65. The inflatable body 63 can be accommodated in the accommodating recess 62 only by inserting the inflatable body 63 from the end surface opened toward the side of the lintels 9a and 9b. And the work of mounting the expansion body 63 can be simplified.

In each of the above embodiments, the inflatable bodies 52, 56, 61, 63 are described as being mounted on the respective sides of the lintels 9a, 9b. A configuration in which the lintels 9a and 9b are attached to only one of the opposing surfaces may be used.

Next, the structure of a switchgear according to a fourth embodiment of the present invention will be described with reference to the drawings. The same structural parts as those in the first embodiment will be described with the same reference numerals.

A fireproof screen device 71 as an opening / closing device shown in FIG. 29 is provided with an expansion member 72 different from the expansion member 18 in the opening / closing device according to the first embodiment.

As shown in FIG. 30, the inflatable body 72 is formed in a flexible and elongated sheet shape.
Is fixedly attached to the flat lower surface of the weight body 20 along the longitudinal direction. The expansion body 72 is located over substantially the entire lower surface of the weight body 20.

The expansion member 72 is, like the expansion member 18 in FIG. 3, an elongated rectangular and thin sheet-like expansion member which expands when heated to a predetermined expansion temperature, for example, about 150 ° C. Is formed. The expansion material 72 is made of a special heat-resistant fiber and special graphite in a sheet shape with a heat-resistant binder and has flexibility. For example, a sodium silicate-based or graphite-based fire-resistant foam material is used.

Next, the operation of the fourth embodiment will be described.

In the refractory screen device 71, the closing sheet 11 is normally wound around the sheet winding 10 and the closed portion 2 is open. When the closed portion 2 is in the open state, which is the normal state, the weight body 20 and the expanding body 72 are connected to the lintels 9a and 9b.
Located between.

In this state, for example, if a fire occurs,
The closing sheet body 11 is lowered by rewinding the sheet winding body 10, the weight body 20 comes into contact with the floor surface 4 via the expansion body 72, and the closed part 2 is closed.

At the time of this fire, the closing sheet 11
However, when the weight 20 is contracted and deformed by receiving heat from a flame, smoke, or the like, the weight 20 rises in accordance with the contraction and deformation, and as a result, the gap 73 between the weight 20 and the floor surface 4 is generated. Occurs once.

However, as shown in FIG. 31, the gap 73 is instantly filled with an expanding body 72 which has expanded by receiving heat from a flame, smoke, or the like.

Therefore, the expansion body 72 expands and the closing body 11
The gap 73 between the tip side in the moving direction of the floor and the floor 4 is filled, so that the flame, smoke and the like from the fire side do not pass through the gap 73, and the simple structure of the expansion body 72 allows the closing body 11 to be closed. Weight body
The airtightness between the floor 20 and the floor 20 can be properly secured.

It should be noted that a configuration using an expansion body 76 shown in FIGS. 32 and 33 which is different from the expansion body 72 in the fourth embodiment may be used.

An enclosing member 77 such as an extensible elongated fire-resistant sheet piece is attached to the flat lower surface of the weight body 20 of the closing sheet 11 in FIG. 32 so that the bag portion 78 faces downward. The inflatable body 76 is accommodated in the bag portion 78. The whole of the expansion body 76 is covered by a covering member 77.

The expanded body 76 is formed of a granular expanded material which expands when heated to a predetermined expansion temperature, for example, a temperature of about 150 ° C. This expanded material is made of a special heat resistant fiber and a special graphite made of a heat resistant binder. For example, it is made of a flexible material, such as a sodium silicate-based or graphite-based fire-resistant foam material.

The inflatable body 76 shown in FIG.
When heated by heat from smoke or the like, it expands as shown in FIG. 33, and has the same operation and effect as the expansion body 72 shown in FIGS. 30 and 31. Further, since the inflatable body 76 is encapsulated by the enclosing member 77, the inflatable body 76 is protected, the abrasion of the inflatable body 76 can be prevented, and the flame does not directly hit the inflatable body 76.

Further, a configuration using a weight body 80 having an expandable and contractible structure shown in FIGS. 34 and 35 different from the weight body 20 in the fourth embodiment may be used.

The weight body 80 shown in FIG. 34 includes a fixing member 81 as an elongated contact body holding section fixed to the lower end of the closing sheet body 11 so as to be located over the entire width of the closing sheet body 11. Have.

The fixing member 81 is formed in a box shape having an opening 82 opened downward on the lower surface.
Inside the 81, an elongated sheet-shaped flexible inflatable body 84 is fixedly attached so as to be located at both ends in the width direction of the lower surface of the upper surface.

A movable member 85 as an elongated contact body is held by the fixed member 81 so as to protrude from the fixed member 81. The movable member 85 is placed on the floor surface when the closed portion 2 is closed. Touch 4.

The movable member 85 has an elongated rectangular plate-like bottom plate portion.
The bottom plate 86 has side plate portions from both ends in the width direction.
87 is vertically erected upward, and an insertion plate 89 is formed from each side plate 87 in a state of vertically projecting upward through a connecting plate 88.

As shown in FIG. 34, each of the insertion plate portions 89 is inserted into the inside of the fixing member 81 through the opening 82 of the fixing member 81, and the upper end of the inserted insertion plate portion 89 is The horizontal retaining plate portions 90 are each formed in a projecting shape in a direction away from each other. An elongated sheet-shaped flexible inflatable body 91 is fixedly attached to the upper surface of each of the retaining plate portions 90, and the inflatable body 91 is located opposite to the inflatable body 84 of the fixing member 81. ing.

The expansion bodies 84 and 91 are, like the expansion body 18 in FIG. 3, formed into a thin rectangular sheet-like expansion which expands when heated to a predetermined expansion temperature, for example, about 150 ° C. It is formed of a material. This expandable material is made of a special heat-resistant fiber and a special graphite and formed into a sheet with a heat-resistant binder and has flexibility. For example, a sodium silicate-based or graphite-based fire-resistant foam material is used.

In the configuration using the weight body 80 shown in FIG. 34, when a fire occurs, the closing sheet body 11 is lowered by rewinding the sheet winding body 10, and the movable member of the weight body 80 is moved.
85 comes into contact with the floor surface 4 and the closed portion 2 is closed.

At the time of this fire, the closing sheet 11
However, when the weight 80 is contracted and deformed by receiving heat from a flame, smoke, or the like, the weight 80 rises in accordance with the contraction and deformation, and as a result, a gap 93 is formed between the weight 80 and the floor 4. Occurs once.

However, as shown in FIG. 35, the movable member 85 protrudes from the fixed member 81 of the weight body 80, and is immediately filled with the protruding movable member 85.

Here, the projecting operation of the movable member 85 is performed by an inflatable body.
Since the movable member 85 is pressed and urged downward by the expansion of the 84 and 91, the movable member 85 is appropriately and reliably protruded from the fixed member 81.

Therefore, the expansion bodies 84 and 91 expand to fill the gap 93 between the tip end of the closing body 11 in the moving direction and the floor surface 4, so that the flame, smoke, etc. from the fire side pass through the gap 93. Thus, the airtightness between the weight body 80 of the closing body 11 and the floor surface 4 can be appropriately secured.

The expansion of the expansion bodies 84 and 91 causes the movable member 85 to be urged downward and to protrude from the fixed member 81 to the maximum extent. Since the lower surface portion is in contact with each other, the fixing member 81
Flame, smoke, and the like from the fire side do not pass between the movable member 85 and the movable member 85, and airtightness can be appropriately secured.

In the above embodiment, the expansion member
Although the configuration has been described in which the 84 is attached to the fixed member 81 and the inflatable body 91 is attached to the movable member 85, for example, the inflatable bodies 84, 91
A configuration in which only one of them is attached may be used,
The mounting position may be any position as long as the movable member 85 is pressed and urged from the fixed member 81 in the protruding direction by expansion.

In the above embodiment, the inflatable body
72 and 76 are attached to the tip side in the moving direction of the closing body,
In other words, although the configuration has been described as being attached to the lower surface of the weight body 20 of the closing sheet 11, for example, instead of the closing sheet 11 side,
The structure which attached to the floor surface 4 side may be sufficient.

Although not shown, the expansion bodies 72, 76, 84, and 91 of the fourth embodiment are applied to the refractory screen devices 1, 41, and 51 of the first to third embodiments. Can also.

Further, the opening / closing device according to any of the first to fourth embodiments also includes the refractory screen devices 1, 41, 51,
Although described as 71, for example, a shutter device having a metal slat or panel, or a shutter device combining a sheet and a metal slat or panel may be used. A door device such as a hinged door or a sliding wall device may be used.

Further, in the fire-and-smoke-proof switchgear, the switchgear itself may be provided with an evacuation opening for evacuation. In addition to the use for fire prevention and smoke prevention, for example, opening and closing devices for entrances and exits of heat insulation and cold storage warehouses may be used.

It should be noted that, even if the shape of the closing body for closing the portion to be closed 2 is complicated, as in the case of a shutter device, etc.
Since they expand flexibly, they can enter narrow gaps and the like, and airtightness can be appropriately secured.

Further, when the switchgear is used for fire and smoke protection, it is preferable that each component is formed of a member having fire resistance.

Although not shown, the first and second
Unlike the expansion bodies 18, 21, 26, 31, 42, and 46 of the embodiment, a configuration of an expansion body attached so as to be embedded in the inside of the closing sheet body 11 may be employed.

Furthermore, if the supporting portion is a portion located at least partially around the closed portion 2, the guide rail 3
A portion other than the a, 3b or the lintels 9a, 9b may be used. Although not shown, a configuration of a support portion located at a position facing the front end side in the moving direction of the closing sheet body may be used.

Although not shown, the present invention can be applied to a case where there is no gap 13 between the closing sheet body 11 and the guide rails 3a and 3b, and there is no gap 14 between the closing sheet body 11 and the lintels 9a and 9b.

Furthermore, the expansion members 18, 21, 26, 31, 42, 46,
The 52, 56, 61, 63, 72, 76, 84, 91 may be provided continuously (one) or intermittently (a plurality) in the longitudinal direction.

Although not shown, the attaching means 53, 54
The configuration of the support portion itself, for example, a concave shape by bending, may be used to hold and fix the inflatable body without using a double-sided tape, an adhesive, a screw, or the like, and this configuration can facilitate replacement work later.

[0147]

According to the opening / closing device according to the first aspect, the inflatable body expands to fix the closed body to the support, so that the closed body does not separate from the support even when it is subjected to wind pressure or the like. The airtightness can be appropriately secured with a simple configuration using the expandable body.

According to the opening / closing device of the second aspect, the inflatable body expands and fills the gap between the closing body and the support portion, so that the airtightness can be appropriately secured with a simple structure using the inflatable body.

According to the opening / closing device of the third aspect, the airtightness between the side edges of the closing body and the guide rail can be appropriately secured.

According to the opening and closing device according to the fourth aspect, the airtightness between the base end side of the closing body and the lintel can be appropriately secured.

According to the opening and closing device according to the fifth aspect, the inflatable body expands and fixes the closing body in the lintel, so that the closing body does not separate from the lintel even if it receives wind pressure or the like.
Airtightness can be appropriately secured with a simple configuration using the expandable body.

According to the opening / closing device according to the sixth aspect, the inflatable body expands and fills the gap between the closing body and the lintel, so that airtightness can be appropriately secured with a simple configuration using the inflatable body.

According to the opening / closing device of the seventh aspect, the contact between the inflatable body and the moving closing body is prevented, so that the inflatable body can be prevented from rubbing.

According to the opening / closing device according to the eighth aspect, the use of the mounting means allows the inflatable body to be easily positioned and fixed.

According to the opening / closing device of the ninth aspect, the inflatable body expands and fills the gap between the front end side in the moving direction of the closing body and the contact surface, so that the airtight structure is simple with the inflatable body. Sex can be properly secured.

According to the opening / closing device of the tenth aspect, since the inflatable body is attached to the distal end side of the closing body, the gap between the distal end side of the closing body and the contact surface can be appropriately filled.

According to the opening / closing device of the eleventh aspect, since the inflatable body expands and presses and biases the contact body, the contact body is appropriately protruded from the contact body holding portion. Thus, airtightness can be appropriately secured.

According to the opening / closing device of the twelfth aspect, since the expandable body expands stepwise, airtightness can be more appropriately secured.

According to the opening and closing device according to the thirteenth aspect, since the expansion body expands when it reaches a predetermined expansion temperature, it can be easily set to appropriately expand, for example, at the time of fire.

According to the opening / closing device according to the fourteenth aspect, since at least a part of the closing body is formed of a sheet material, the structure can be simplified as compared with, for example, a structure in which the entire closing body is formed of metal slats. it can.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a switchgear of the present invention.

FIG. 2 is a side view showing the opening and closing device.

FIG. 3 is a sectional view taken along line AA of FIG. 1 before the expansion body is expanded.

FIG. 4 is a sectional view taken along line AA of FIG. 1 after the expansion body is expanded.

FIG. 5 is a cross-sectional view of another expansion body before expansion.

FIG. 6 is a cross-sectional view after expansion of the other expansion body.

FIG. 7 is a cross-sectional view of still another expansion body before expansion.

FIG. 8 is a cross-sectional view of the same expanded body after expansion.

FIG. 9 is a front view showing an opening / closing device using another expansion body.

FIG. 10 is a front view showing a switchgear according to a second embodiment of the present invention.

FIG. 11 is a side view showing the opening and closing device.

FIG. 12 is a cross-sectional view showing an expansion body of the opening and closing device before expansion.

FIG. 13 is a cross-sectional view showing an expanded body of the opening and closing device after expansion.

FIG. 14 is a cross-sectional view of another expansion body before expansion.

FIG. 15 is a cross-sectional view of another expansion body after expansion.

FIG. 16 is a front view showing a third embodiment of the switchgear of the present invention.

FIG. 17 is a side view showing the opening and closing device.

FIG. 18 is a sectional view showing an inflating body of the opening and closing device before inflation.

FIG. 19 is a cross-sectional view showing an expanded body of the opening and closing device after expansion.

FIG. 20 is a front view of another expansion body before expansion.

FIG. 21 is a cross-sectional view before expansion of another expansion body of the above.

FIG. 22 is a cross-sectional view of another expansion body after expansion.

FIG. 23 is a cross-sectional view of still another expansion body before expansion.

FIG. 24 is a cross-sectional view of the same expanded body after expansion.

FIG. 25 is a cross-sectional view of still another expansion body before expansion.

FIG. 26 is a cross-sectional view of the same expansion body after expansion.

FIG. 27 is a cross-sectional view of yet another expansion body before expansion.

FIG. 28 is a cross-sectional view of the same expansion body after expansion.

FIG. 29 is a front view of a switchgear according to a fourth embodiment of the present invention.

FIG. 30 is a cross-sectional view showing an expansion body of the opening and closing device before expansion.

FIG. 31 is a cross-sectional view showing an expanded body of the opening and closing device after expansion.

FIG. 32 is a cross-sectional view of another expansion body before expansion.

FIG. 33 is a cross-sectional view after expansion of another expansion body of the above.

FIG. 34 is a cross-sectional view of still another expansion body before expansion.

FIG. 35 is a cross-sectional view of yet another expansion body of a weight body before expansion.

[Explanation of symbols]

1, 41, 51, 71 Fire-resistant screen device as opening / closing device 2 Closed part 3a, 3b Guide rail as supporting part 4 Floor surface as contacted surface 9a, 9b Forage as supporting part 13,14 Gap 18, 21, 26, 31, 42, 46, 52, 56, 61, 63, 72, 76, 8
4, 91 inflatable body 53, 54 mounting means 81 fixed member as contact body holding part 85 movable member as contact body

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E06B 9/20 B

Claims (14)

[Claims] 1. A closing body capable of closing a closed portion, and a support portion provided at least at a part of the periphery of the closed portion and facing the closed body when the closed portion is in a closed state. An opening / closing device attached to the closing body and expanding when the closed portion is in a closed state to fix the closing body to the support portion. A closed body capable of closing the closed portion; and a closing body provided at least at a part of a periphery of the closed portion and facing the closed body via a gap when the closed portion is in a closed state. An opening / closing device, comprising: a supporting portion that is located; and an inflating body that is attached to the closing body and expands when the closed portion is in a closed state to fill the gap. 3. The closing body is provided so as to be movable along a portion to be closed, and the supporting portion is a guide rail located at a position facing both side edges in the moving direction of the closing body. The switchgear according to claim 1 or 2, wherein the switchgear. 4. The closing body is provided so as to be movable along a portion to be closed, and the supporting portion is a lintel located at a position facing a base end side in the moving direction of the closing body. The switchgear according to claim 1 or 2, wherein the switchgear. 5. It is provided so as to be movable along a portion to be closed,
A closing body capable of closing the closed part; a lintel located at a position facing a base end side in a moving direction of the closing body when the closed part is in a closed state; An inflatable body that is inflated when the part is closed to fix the closed body in the lintel. 6. It is provided so as to be movable along a portion to be closed,
A closing body capable of closing the closed part; a lintel located at a position facing a base end side in the moving direction of the closing body via a gap when the closed part is in a closed state; An inflatable body that expands when the closed portion is closed to fill the gap. 7. The opening / closing device according to claim 5, wherein the inflatable body is attached in a state where the inflatable body is set so as to prevent contact with the moving closing body. 8. The opening / closing device according to claim 5, further comprising mounting means for positioning and fixing the expansion body. 9. It is provided so as to be movable along a portion to be closed,
A closing body that closes the closed portion when the distal end in the moving direction is in contact with the contacted surface; and a closed body that moves in the moving direction of the closed body and the contacted surface when the closed portion is in the closed state. An inflatable body that expands so as to fill a gap formed therebetween. 10. The opening / closing device according to claim 9, wherein the inflatable body is attached to a distal end side in a moving direction of the closing body. 11. A closing body movably provided along the closed portion and capable of closing the closed portion, a contact body holding portion provided on a distal end side in the moving direction of the closing body, and a contact body. A contact body that is held by the holding section so as to protrude from the contact body holding section and that comes into contact with the contact surface when the closed section is in a closed state; and that expands and presses the contact body when the closed section is in a closed state. An opening / closing device comprising: a biasing inflatable body. 12. The expansion body has a longitudinal direction, and is set so as to expand stepwise from one end side to the other end side in the longitudinal direction.
The switchgear according to any one of the above. 13. The switchgear according to claim 1, wherein the expansion body expands when a predetermined expansion temperature is reached. 14. The opening / closing device according to claim 1, wherein at least a part of the closing body is formed of a sheet material.