JP2008261177A - Overdoor and door panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an overdoor capable of preventing fire from spreading by using an aluminum door panel. <P>SOLUTION: A plurality of door panels 1 are mutually connected by hinges 2 to bend freely to constitute the door 3, which can elevate and lower freely along a guide rail 4 attached to right and left vertical fringes of an opening part 6. The door panel 1 has an aluminum panel body 30 and an aluminum heat radiating member 40 fixed and attached on/to a rear surface of the panel body 30 by a fastener. When the panel body 30 is heated from its front, the heat is radiated through the heat radiating member 40 to prevent rise of temperature and prolong the time required until the panel body 30 is melted to prevent the fire from spreading. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an overdoor attached to an opening of a building such as a warehouse, a garage, or a factory, and a door panel of the overdoor.

Patent Document 1 discloses an overdoor.
This overdoor is a door that is flexibly connected with a plurality of door panels with hinges, and can be raised and lowered along the guide rail. The door is lowered and lowered to rise and opened. Is.

JP 2000-337005 A

The above-described overdoor has no appearance of rust and can maintain a good appearance for a long period of time and does not require maintenance, and the door is raised or lowered manually or by an electric motor, so the door weight is heavy. Because it requires a large amount of force to move up and down manually, a large amount of labor is required when moving up and down manually, and when moving up and down with an electric motor, the power consumption is high and the maintenance cost is high, which makes the door lightweight. Overdoors with aluminum door panels have been proposed.
However, since aluminum has a lower melting point than iron and melts in a short time in the event of a fire, it cannot fulfill the role of fire prevention.

  An object of the present invention is to provide an overdoor that can serve as a fire prevention by using an aluminum door panel and the door panel.

The overdoor according to the present invention is configured such that a door 3 in which a plurality of door panels 1 are flexibly connected by a hinge 2 is closed along guide rails 4 attached to left and right vertical edges of an opening 6 in an indoor side surface 5a of a building outer wall 5. It can be moved up and down between the open state and the open state,
The door panel 1 has an aluminum panel body 30 and a metal heat dissipating member 40 attached to the back surface of the panel body 30.

  In the overdoor of the present invention, the left and right vertical heating expansion material 13 and the horizontal heating expansion material 14 are connected to the outdoor side surface of the door 3 along the left and right vertical edges and the upper horizontal edge of the opening 6 in the indoor side surface 5 a of the building outer wall 5. It can be mounted opposite to.

  In this way, the vertical and horizontal heating expansion materials 13 and 14 expand in the event of a fire and block the gap between the indoor side surface 5a of the building outer wall 5 and the outdoor side surface 3a of the door 3, so that the fire is indoors from the outdoor side. It can prevent getting into.

  In the overdoor of the present invention, the panel body 30 moves to the outdoor side and downward when the door 3 is closed across the upper part of the panel body 30 of the uppermost door panel 1 and the indoor side surface 5a of the building outer wall 5. It is possible to attach an opening prevention member 20 that restricts the operation.

  If it does in this way, when the uppermost door panel 1 will be heated and thermally expanded at the time of a fire, it will suppress that the panel main body 30 curves and deforms toward the outdoor side and the downward direction, and the door panel 1 and the building outer wall 5 It is possible to prevent the indoor side surface 5a from being largely separated.

The door panel of the present invention has a panel body 30 of an aluminum extruded shape member having a plurality of hollow portions 34 in which a front plate 31 and a back plate 32 are connected by a plurality of connecting pieces 33,
The door panel includes a metal heat dissipating member 40 fixedly attached to a back plate 32 of the panel body 30 with a fixing tool.

  In the door panel of the present invention, the heat radiating member 40 can be an aluminum extruded shape.

  If it does in this way, since panel body 30 and heat radiating member 40 are extrusion-molded separately, the extrusion molding is easy.

In the door panel of the present invention, a first member 42 having a substantially U-shaped cross section having a vertical plate 42a and upper and lower horizontal plates 42b, and a second member having a substantially U-shaped cross section having a vertical plate 43a and upper and lower horizontal plates 43b. 43, a heat radiating member 40 having a hollow portion 40a by fitting so that the upper and lower horizontal plates are in contact with each other and fixing each with a fixing tool,
The vertical plate 42a of the first member 42 of the heat radiating member 40 can be in contact with the back plate 32 of the panel body 30 and fixed with a fixing tool.

In this way, when the panel body 30 is heated from the front plate 31 side, the heat of the panel body 30 is efficiently transferred from the back plate 32 to the heat radiating member 40, and is radiated to the outside through the hollow portion 40a. The heat is also radiated from the surface of the heat radiating member 40.
Therefore, the amount of heat radiated from the heat radiating member 40 is large, and the temperature rise of the panel body 30 can be further suppressed, so that the time until the panel body 30 is melted in the event of a fire can be further prolonged.

In addition, since the second member 43 can be fitted and fixed to the first member 42 after the vertical plate 42a of the first member 42 is fixed to the back plate 32 with a fixing tool, the heat radiating member 40 is attached to the panel body 30. Can be installed easily.
Further, since the upper and lower horizontal plates 42b of the first member 42 and the upper and lower horizontal plates 43b of the second member 43 are in contact with each other to form a hollow shape, the sectional moment of the heat radiating member 40 is large, and the door panel 1 is curved and deformed by thermal expansion. Can be reduced.
Moreover, since the panel main body 30, the 1st member 42, and the 2nd member 43 can be extruded separately, the extrusion molding is easy.

According to the overdoor of the present invention, the door panel 1 can be made of aluminum and lightweight. Moreover, when the panel main body 30 of the door panel 1 is heated, the heat is radiated by the heat radiating member 40 to suppress the temperature rise of the panel main body 30, so that the time from the heating to the melting can be increased.
Therefore, the role of fire prevention can be achieved by using the aluminum door panel.

  According to the door panel of the present invention, when the panel main body 30 is heated, the heat is radiated by the heat radiating member 40, and the temperature rise of the panel main body 30 can be suppressed.

As shown in FIGS. 1 to 3, a door 3 in which a plurality of door panels 1 are flexibly connected by a hinge 2 is provided so as to be movable up and down along a guide rail 4 to be an overdoor.
The door rail 4 is attached along the left and right vertical edges of the opening 6 in the indoor side surface 5 a of the building outer wall 5. The guide rail 4 has a substantially bowl shape at the vertical portion 4a and the horizontal portion 4b, and rollers 7 attached to the door panels 1 are in contact with each other so as to be rotatable.
When each roller 7 is in contact with the vertical portion 4 a of the guide rail 4, the door 3 is in the vertical state and closes the opening 6.
When each of the rollers 7 is in contact with the lateral portion 4 b of the guide rail 4, the door 3 is in an open state in which the opening 6 is opened sideways.
While the roller 7 is attached to the uppermost and lowermost door panels 1 and the roller 7 is attached to the hinge 2 in the other door panels 1, the roller 7 may be attached separately from the hinge 2.
A watertight material (weather strip) 8 is attached to the lower end portion of the lowermost door panel 1 of the door 3, and when the door 3 is closed, the watertight material 8 comes into contact with an opening bottom surface 6a such as a floor.

In this embodiment, the guide rail 4 is attached to the indoor side surface 5 a of the building outer wall 5 at a jam angle 9.
A trolley arm 10 is connected to the uppermost door panel 1, and the trolley arm 10 is moved along a trolley rail 11 by an electric motor 12.

As shown in FIG. 3, left and right vertical heating expansion members 13 are attached to the indoor side surface 5 a of the building outer wall 5 so as to face the outdoor side surface 1 a of the door panel 1.
A horizontal heating expansion material 14 is attached to face the outdoor side surface 1a of the door panel 1 along the upper horizontal edge of the opening 6 in the indoor side surface 5a of the building outer wall 5 as shown in FIG.
The vertical and horizontal heating expansion materials 13 and 14 are a laminate of a plurality of heating expansion sheets. The vertical heating expansion material 13 is attached to the jam angle 9 and the horizontal heating expansion material 14 is interposed through a stainless steel plate 14a. Installed.

Thus, when heated from the outdoor side of the door 3 due to a fire or the like, the vertical / horizontal heating expansion materials 13 and 14 expand and the outdoor side surface of the door 3 (the outdoor side surface 1a of the door panel 1) and the outer wall of the building 5 between the vertical edge and the upper horizontal edge of the opening 6 in the indoor side surface 5a is closed by the vertical and horizontal heating expansion materials 13 and 14.
Accordingly, it is possible to prevent a flame from entering the indoor side from between the outdoor side surface of the door and the vertical edge and the upper horizontal edge of the opening 6 in the indoor side surface 5a of the building outer wall 5 at the time of a fire.

As shown in FIG. 3, the space between the outdoor side surface of the door 3 and the left and right vertical edges of the opening 6 in the indoor side surface 5 a of the building outer wall 5 is hermetically sealed with a vertical airtight material 15. 7 mag is not visible.
The vertical airtight material 15 is mounted on a vertical piece 15 a so that the vertical piece 15 a is pressed by a jam angle 9.

An opening preventing member 20 is attached across the upper portion (the uppermost door panel) of the door 3 and the upper lateral edge of the opening 6 in the indoor side surface 5a of the building outer wall 5.
The opening preventing member 20 prevents the upper portion of the door 3 from being largely separated from the upper lateral edge of the opening 6 when the door 3 is thermally expanded by heating to be bent and deformed.
For example, as shown in FIG. 2, the top frame member 21 is fixedly attached to the upper portion of the uppermost door panel 1 with a fixing tool such as a blind rivet 22.
The upper reinforcing member 23 is fixedly attached to the top frame member 21 with a fixing tool such as a blind rivet 24.
The upper reinforcing bracket 23 is attached over the entire length of the uppermost door panel 1 in the longitudinal direction and has a downward flange 23a.
An opening stopper 25 is fixedly attached to the indoor side surface 5a of the building outer wall 5 with a fixing tool, and the downward flange 23a is engaged with the upward flange 25a.

  Thus, when the door 3 (the uppermost door panel 1) is thermally expanded by heating and curved and deformed into a circular arc shape toward the downward bow shape and the outdoor side, the downward flange portion 23a contacts the upward flange portion 25a. The curved deformation is restricted to prevent the upper portion of the door 3 from being largely separated from the upper lateral edge of the opening 6.

  A bottom frame member 16 is fixedly attached to a lower end portion of the lowermost door panel 1 with a fixing tool such as a blind rivet 17, and the watertight member 8 is attached to the bottom frame member 16.

The door panel 1 includes an aluminum panel main body 30 and a metal, for example, aluminum heat dissipating member 40 provided on the back surface of the panel main body 30. Mounted to face inward.
Since it is like this, when it heats from the front side of the panel main body 10 (for example, it heats with a flame at the time of a fire), a part of the heat is radiated from the heat radiating member 40 to the back side, and the temperature of the panel main body 30 suddenly increases. Rises to a temperature at which the panel main body 30 is melted, and the time it takes to rise is prolonged.
For example, it is possible to prevent the flame from blowing out indoors without melting for 20 minutes at a fire temperature of 850 ° C.
Therefore, an overdoor using an aluminum door panel can serve as a fire prevention.

In the above-described embodiment, the uppermost door panel 1 of the door 3 is only the panel body 30.
This is because the uppermost door panel 1 has a heat radiating surface on its upper surface, so that sufficient heat can be radiated without the heat radiating member 40 and the time to rise to the melting temperature becomes longer.
Note that the uppermost door panel 1 may include the heat dissipation member 40.
In short, since the lower part of the upper door panel 1 and the upper part of the lower door panel 1 are in contact with each other except the uppermost and lowermost door panels of the plurality of door panels 1 of the door 3, the upper and lower surfaces of the door panel 1 do not serve as heat radiation surfaces. A member 40 is provided so that sufficient heat dissipation is possible.
Further, the lowermost door panel 1 has a heat radiating member 40 because the watertight material 8 mounted on the lower surface prevents heat radiation.

Further, since the panel body 30 is reinforced by the heat radiating member 40 and the sectional moment as the door panel 1 is large, when the door panel 1 is thermally expanded, the amount of bending deformation in the indoor outside direction and the vertical direction can be reduced.
That is, when the door panel 1 is heated from the outdoor side and thermally expands, the door panel 1 is curved and deformed in an arc shape toward the outdoor side, and when the amount of the curved deformation is large, both ends in the longitudinal direction of the door panel 1 are left and right of the opening 6. Since the vertical edges may come off, the heat dissipation member 40 increases the secondary moment of section of the entire door panel 1 as described above, reduces the amount of curved deformation of the arc shape described above, and opens both ends in the longitudinal direction of the door panel 1. Do not deviate from the left and right vertical edges of the part 6.
For example, it is preferable to secure the cross-sectional secondary moment of the heat dissipation member 40 to 2.5 times or more of the cross-sectional secondary moment of the panel body 30.

Next, details of the door panel 1 will be described.
The panel main body 30 is a long material having a cross-sectional shape having a hollow portion with a vertically long dimension (thickness T) and a large vertical dimension (width H).
For example, a long material having a plurality of hollow portions 34 with a front plate 31, a back plate 32, and a plurality of connecting pieces 33, which is obtained by cutting an extruded shape made of aluminum (aluminum alloy) into a predetermined length. is there.

An upper concave portion 35 is formed on the upper portion of the panel main body 30, and a protrusion 36 is formed on the lower portion. The protrusion 36 and the concave portion 35 are fitted to each other.
For example, the upper portions of the front plate 31 and the back plate 32 protrude upward from the uppermost connecting piece 33 to form an upward recess 35, and the lower portions of the front plate 31 and the rear plate 32 are lower than the lowermost connecting piece 33. It protrudes into a protrusion 36.

  As such, when the door 3 is in the closed state, the upward recessed portion 35 and the protrusion 36 of the door panel 1 adjacent to each other are fitted together, so that the door panels 1 adjacent to each other are firmly connected.

The heat radiating member 40 has a hollow member 40a and is a long material having a flat mounting surface 40b. The heat radiating member 40 is fixedly attached to the back plate 32 (back surface) of the panel body 30 with a fixing tool such as a blind rivet 41. The heat radiating member 40 is obtained by cutting an extruded shape made of aluminum (aluminum alloy) into a predetermined length.
The mounting surface 40 b of the heat radiating member 40 is in contact with the back plate 32 of the panel main body 30, and the contact area between the heat radiating member 40 and the panel main body 30 is large, so that heat is easily transmitted from the panel main body 30 to the heat radiating member 40.

The heat radiating member 40 includes a U-shaped first member 42 and a U-shaped second member 43, and the first and second members 42 and 43 are extruded shapes made of aluminum (aluminum alloy). is there.
The first member 42 has a U-shape including a vertical plate 42a and upper and lower horizontal plates 42b, and the vertical plate 42a is fixedly attached to the back plate 32 with a fixing tool.
The second member 43 has a U-shape consisting of a vertical plate 43a and upper and lower horizontal plates 43b. The upper and lower horizontal plates 43b are in contact with the upper and lower horizontal plates 42b of the first member 42 and are fixed by a fixing tool such as a blind rivet 44. The heat radiation member 40 has a hollow shape.

Therefore, after fixing the first member 42 to the back plate 32 of the panel body 30, the heat dissipation member 40 is attached to the panel body 30 by fitting and fixing the second member 43 to the first member 42. Since it can be installed, it is easy to install.
Moreover, since the panel main body 30, the 1st member 42, and the 2nd member 43 are each a different body, each can be extrusion-molded separately and the extrusion molding is easy.
Moreover, since the U-shaped first member 42 and the U-shaped second member 43 are fitted and fixed to form a rectangular hollow shape, the heat insulating secondary moment of the heat radiating member 40 can be increased.

The hollow portion 34 of the panel body 30 and the hollow portion 40a of the heat radiating member 40 are opened to both ends in the longitudinal direction, respectively, so that air can smoothly flow through the hollow portions 34 and 40a.
As a result, when the door panel 1 is heated, the air in the hollow portions 34 and 40a is warmed and flows out, so that the temperature rise of the door panel 1 can be further suppressed.

The first member 42 and the second member 43 may be engaged with each other and temporarily attached.
For example, as shown in FIG. 5, an engagement portion 45 is provided at the tip of each of the upper and lower horizontal plates 42b and 43b, an engagement receiving portion 46 is formed at the base of the upper and lower horizontal plate 42b of the first member 42, and the second An engagement receiving portion 47 is provided on the vertical plate 43 a of the member 43.
Then, the second member 43 is fitted into the first member 42 so as to be engaged with each other so that each engagement portion 45 is engaged with each engagement receiving portion 46, 47.

  The cross-sectional shape of the heat radiating member 40 is not limited to the above-described rectangular shape, and may be any cross-sectional shape as shown in FIGS. Further, the heat radiating member 40 may be a metal other than aluminum such as iron or stainless steel.

As shown in FIG. 2, the uppermost door panel 1 is cut off and removed from the upper ends of the front plate 31 and the back plate 32, and the top frame member 21 is fitted over the front plate 31 and the back plate 32. And fixed with a fixing tool.
The bottom frame member 16 is fitted and attached across the lower end portions of the front plate 31 and the back plate 32 of the lowermost door panel 1, and is fixedly attached with a fixing tool.

It is an indoor side front view of the overdoor which shows embodiment of this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is an expanded sectional view of a door panel. It is sectional drawing which shows other embodiment of a thermal radiation member. It is sectional drawing which shows embodiment from which the heat radiating member of a door panel differs.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Door panel, 2 ... Hinge, 3 ... Door, 4 ... Guide rail, 5 ... Building outer wall, 5a ... Indoor side surface, 6 ... Opening part, 7 ... Roller, 13 ... Vertical heating expansion material, 14 ... Horizontal heating expansion material, DESCRIPTION OF SYMBOLS 20 ... Opening prevention member, 21 ... Top frame material, 23 ... Upper reinforcement metal fitting, 25 ... Opening prevention metal fitting, 30 ... Panel main body, 31 ... Front plate, 32 ... Back plate, 33 ... Connection piece, 34 ... Hollow part, 35 ... Upward recessed part, 36 ... Projection part, 40 ... Heat dissipation member, 40a ... Hollow part, 42 ... First member, 43 ... Second member.

Claims (6)

A door 3 in which a plurality of door panels 1 are flexibly connected by a hinge 2 is closed and opened along guide rails 4 attached to the left and right vertical edges of the opening 6 on the indoor side surface 5a of the building outer wall 5. Mount up and down freely,
An overdoor characterized in that the door panel 1 includes an aluminum panel main body 30 and a metal heat dissipating member 40 attached to the back surface of the panel main body 30.   The left and right vertical heating expansion material 13 and the horizontal heating expansion material 14 are attached to the outdoor side surface of the door 3 along the left and right vertical edges and the upper horizontal edge of the opening 6 in the indoor side surface 5a of the building outer wall 5. The overdoor according to 1.   An opening preventing member that restricts the panel body 30 from moving to the outdoor side and downward when the door 3 is closed across the upper part of the panel body 30 of the uppermost door panel 1 and the indoor side surface 5a of the building outer wall 5. The overdoor according to claim 1, wherein 20 is attached. A panel body 30 of an aluminum extruded profile having a plurality of hollow portions 34 in which a front plate 31 and a back plate 32 are connected by a plurality of connecting pieces 33;
A door panel having a metal heat dissipating member 40 fixedly attached to a back plate 32 of the panel body 30 with a fixing tool.   The door panel according to claim 4, wherein the heat dissipating member is an aluminum extruded profile. A first member 42 having a substantially U-shaped cross section having a vertical plate 42a and upper and lower horizontal plates 42b, and a second member 43 having a substantially U-shaped cross section having a vertical plate 43a and upper and lower horizontal plates 43b The heat dissipating member 40 having a hollow portion 40a that is fitted with each other so as to be in contact with each other and fixed with a fixing tool,
The door panel according to claim 5, wherein the vertical plate a of the first member 42 of the heat radiating member 40 is in contact with the back plate 32 of the panel body 30 and is fixed by a fixing tool.

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