JP6166210B2 - Destructible fence in case of emergency - Google Patents

Description

  The present invention relates to a fence that can be installed along a boundary of a highway site boundary, a commercial facility, a public facility, a boundary with a restricted area such as a factory or a mountainous area, and the like and can be destroyed in an emergency. is there.

  In order to prevent ordinary people from easily entering the site boundaries of highway sites, factories, mountains, commercial facilities, public facilities, etc. A fence is installed. As a form of fence, generally, a structure in which struts are embedded at appropriate intervals along a boundary portion and a lattice-like or plate-like panel is attached between the struts is used. Furthermore, in order to prevent intrusion more strictly, the fence is further attached with a barbed wire, the fence is tilted toward the outside of the site, or has a bowl-like shape toward the outside of the site. What attached the flip-flop which has a protrusion part is used.

  If an earthquake, tsunami, flood, etc. occurs or is more likely to occur, in addition to nearby public halls, gymnasiums, schools, etc., evacuation sites such as the above expressway sites Boundaries, factories and mountainous areas can also be mentioned. Of these, for example, highways are generally effective as evacuation sites because the altitude above sea level is generally higher than the vicinity due to embankment, but the fences provided at these site boundaries are not particularly suitable for ordinary people. As described above, it is often more robust than a normal one, and it is not easy to break or get over the fence in a time-consuming situation such as evacuation.

  For example, in Patent Document 1, in a gate with a lock, when a part of the panel of the gate is configured with a low-strength panel that can be broken, and the arm is passed from the outside of the opening provided by breaking the low-strength panel In addition, there has been proposed a gate provided with a position where the lock can be unlocked.

JP 2007-270533 A

  However, in the gate as mentioned above, even if the arm reaches the lock of the gate after destroying the low-strength panel, the door cannot be opened unless you have the key that can unlock the lock at that time, Even if the lock can be unlocked, if the gate door or its support material is distorted or deformed, it may not be possible to open the gate. There were cases where it was difficult to proceed to.

  The present invention solves the above-described problems, and provides a fence that can be destroyed in an emergency that can be easily passed from the front side to the back side of the fence by breaking a part of the fence.

In order to achieve the above object, the present invention is configured as follows.
That is, the fence that can be destroyed in an emergency according to the present invention is a fence that includes a plurality of columns that are erected on the installation surface at intervals, and a plurality of panels that are laid between the columns.
A low-strength panel having a plate part that is easier to break than other panels is used for some of the plurality of panels.
The low-strength panel is fixed to the plate portion formed in a rectangular plate shape, a horizontal frame fixed to at least one of the upper end portion and the lower end portion of the plate portion, and left and right end portions of the plate portion, respectively. With a vertical frame,
Each vertical frame is attached to each column, the low-strength panel is installed between the columns, and the horizontal frame is fixed to the plate portion without being fixed to any of the vertical frames. It is characterized by that.

According to the fence that can be destroyed in an emergency according to the present invention, a low-strength panel having a plate part that is easier to break than some of the other panels among a plurality of panels to be installed between the columns is used. Therefore, in the event of an emergency such as a disaster, the plate portion can be destroyed to allow people to pass through. In addition, the easy destruction here means the ease to which it can be destroyed by hitting and kicking with only human power without using a tool.
The low-strength panel is formed by forming the plate portion into a rectangular plate shape, fixing vertical frames to the left and right ends thereof, and attaching the vertical frames to the support columns, respectively. Therefore, the low-strength panel provided with the plate portion that is easily broken can be stably installed.
In addition, since the horizontal frame is fixed to at least one of the upper end portion and the lower end portion of the plate portion, when the plate portion of the installed low-strength panel receives an external force such as receiving strong wind, the plate portion is distorted. It can be suppressed by the lateral edges, and deterioration and damage due to distortion of the plate portion can be reduced.
In addition, since the horizontal frame is fixed to the plate portion in a state where it is not fixed to any of the vertical frames, the horizontal frame can be easily detached from the low-strength panel by breaking the plate portion in an emergency. This makes it easier for people to pass between the columns.

In addition, the horizontal frame includes a web portion and two flange portions that are connected to the web portion and spaced apart from each other, and an upper edge of the plate portion that is inserted into a gap between the flange portions. Alternatively, if the horizontal frame is fixed to the lower edge, when the plate portion receives an external force such as a strong wind, the flange portions are arranged so that the distortion of the plate portions is arranged on both plate surface sides. Therefore, it is preferable to suppress the deterioration and damage due to distortion of the plate portion.
Further, if the vertical frame fixed to the plate portion is inserted into the gap, the movement of the horizontal frame due to the distortion of the plate portion can be suppressed by the vertical frame, and the distortion of the plate portion can be reduced more effectively. Therefore, it is preferable.

  According to the fence that can be destroyed in an emergency according to the present invention, it is possible for a person to pass through a person by hitting or kicking a plate portion of a low-strength panel to give an impact and destroy it. In addition, the deterioration and damage of the plate portion in a normal installation state can be suppressed.

It is a front view which shows one Embodiment of the fence which can be destroyed in the emergency which concerns on this invention. It is a front view of the low intensity | strength panel of FIG. It is AA sectional drawing of FIG. It is AA sectional drawing of FIG. 2 which shows the cross section of a low intensity | strength panel. It is BB sectional drawing of FIG. 2 which shows the longitudinal cross-section of a low intensity | strength panel. It is a perspective view which shows the shape and arrangement | positioning of each member of the low intensity | strength panel of FIG. 2 in a partial cross section. It is a front view which shows an example of the condition which destroyed the board part 31 of the low intensity | strength panel 3 of FIG.

Embodiments of the present invention will be specifically described with reference to the drawings.
In the drawing, F is a fence that can be destroyed in an emergency.
The fence F is formed by laying a panel 2 and a low-strength panel 3 between support columns 1 that are erected on the installation surface G with an appropriate interval. The panel 2 is a normal panel having a normal strength conventionally used for a fence, the low-strength panel 3 is a panel formed more easily than the normal panel 2, and 4 is a low panel. It is a display material attached to the strength panel 3.

  The column 1 is erected at an appropriate interval with its lower part embedded in the installation surface. The strut 1 is generally a steel pipe that is stable in strength, but other metals may be used in addition to the steel material. Examples of other metals include aluminum alloys and stainless steel alloys. Moreover, in order to improve the corrosion resistance and weather resistance of the support | pillar 1, you may give metal plating and coating. Note that the front side of the fence F is the front side that is the side where the display material 4 is adhered to the low-strength panel 3, and the embodiment will be described as well. In this embodiment, a column cap 11 is attached to the upper end of the column 1.

  The normal panel 2 is not easy to break, and has a strength that does not easily cause damage to the extent that a person can pass depending on the impact of being hit or kicked by a person. In this embodiment, a mesh panel is used in which a large number of steel wires are arranged in a grid pattern in the vertical and horizontal directions and the intersections are joined by welding or the like. Other forms of the panel 2 may include a non-porous panel and a perforated panel. As a non-porous panel, the metal plate and the laminated board which laminated | stacked the metal plate and the resin board can be mentioned. As a perforated panel, what perforated a non-perforated panel can be mentioned.

FIG. 2 is a front view of the low-strength panel 3 of FIG.
The low-strength panel 3 is a panel that is easier to break than the normal panel 2 described above, and a person gives an impact to the low-strength panel 3 to break it and allow it to pass.
The low-strength panel 3 includes a plate portion 31 formed in a rectangular plate shape, a vertical frame 5 attached to the left and right side ends of the plate portion 31, and a horizontal frame attached to the upper and lower ends of the plate portion 31, respectively. 6, and the plate portion 31 is formed to have a strength that can be broken by a person hitting or kicking without using a tool.
The number of the low-strength panels 3 may be one or two or more in the entire fence F, and the number and arrangement of the low-strength panels 3 with respect to the normal panel 2 are appropriately determined according to the situation of the installation site. It only has to be decided.

  The plate portion 31 of the low-strength panel 3 is generally composed of calcareous raw materials such as limestone and cement, inorganic fibers such as siliceous raw materials and glass fibers, and kneaded by adding admixtures and water to the raw materials. A sheet material formed by paper making and curing, specifically, a calcium silicate plate defined in JIS A 5430 (fiber reinforced cement plate). In the present embodiment, the plate portion 31 uses the calcium silicate plate, the thickness thereof is about 3 mm, and a person strikes or kicks the low strength panel 3 in the thickness direction. When an impact is applied, it breaks and breaks.

  The low-strength panel 3 is preferably so tall that a person cannot easily get over it. Specifically, the upper end of the low-strength panel 3 is 1500 to 2000 mm above the ground when installed. Preferably there is. In the present embodiment, the low-strength panel 3 is formed in a rectangular shape, but the shape may be changed according to the inclination of the installation surface to be installed. That is, when the fence F is installed on an inclined ground, if the lower end portion of the low-strength panel 3 is processed obliquely along the slope, the low-strength panel 3 and the sloped installation surface are installed even after installation. It can be installed so that unnecessary gaps do not occur.

  The low-strength panel 3 is attached with a display material 4 indicating that the plate portion 31 is an easily breakable panel, that is, when the impact is applied. As a result, in an emergency such as an evacuation when a disaster occurs due to an earthquake, tsunami, typhoon, flood, etc., the refugee does not have to climb over or break the normal panel part and break the plate part 31. Can evacuate smoothly.

  The display material 4 is generally adhered to the surface of the plate portion 31, and is provided with an indication that it is broken when an impact is applied to the plate portion 31. The display material 4 shown in FIGS. 1 and 2 has a display layer with a display of “In case of an emergency, please evacuate and evacuate. It is a sheet material in which an adhesive layer for adhering the display layer to the plate portion 31 is laminated, and may be provided with a layer having a function for improving weather resistance, water resistance, durability, and the like.

  A large number of cuts 41 along the vertical direction are formed in the display material 4 with a space left and right. Each of the cut lines 41 is formed so as to reach from the upper end to the lower end of the display material 4 and from the front surface to the back surface side. The portion of the plate material 31 to which the display material 4 is attached is less likely to be destroyed because the display material 4 is a reinforcing material, but the portion where the cut 41 is formed is compared with the other attachment portions of the display material 4. The plate material 31 is easily broken along the formation direction of the cut line 41. That is, when a crack generated when the refugee gives an impact to the low-strength panel reaches the display material 4, the crack may stop at the peripheral edge, but by forming the cut 41, the plate portion 31. It is provided so that the tearing of the can easily spread.

4 is a cross-sectional view of the low-strength panel 3 taken along line AA of FIG. 2, FIG. 5 is a cross-sectional view of the low-strength panel 3 taken along line BB of FIG. 2, and FIG. It is a perspective view which shows the shape and arrangement | positioning of each member of the 2 low intensity | strength panel 3 in a partial cross section.
4 and 5, the arrow Y1 indicates the front and the arrow Y2 indicates the rear.
Each of the vertical frames 5 is formed in an elongated body that is long in the vertical direction, and is formed in the same size as the size of the plate portion 31 in the vertical direction.
Each of the vertical frames 5 is formed in a U-shaped cross section including a plate-like web portion 51 and two flange portions 52 and 53 extending from both ends of the web portion 51, respectively. As shown in FIG. 4, the web portion 51 is arranged in the outer direction of the low-strength panel 3, and the flange portions 52 and 53 are arranged so as to protrude in the inner direction of the low-strength panel 3. Specifically, as shown in FIG. 4, the vertical frame 5 has the flange portion 52 disposed on the lower front side in the drawing and the flange portion 53 disposed on the upper rear side in the drawing.
Each of the vertical frames 5 is attached to the plate portion 31 by inserting a side end of the plate portion 31 between the flange portions 52 and 53 arranged at intervals in the front-rear direction.
The vertical frame 5 is formed by appropriately cutting a long shape material formed by extrusion molding of an aluminum alloy. The method of forming the vertical frame 5 is not limited to this, and as other metals, a stainless alloy or a steel material may be used, and when these are used, a plate material may be formed by pressing or bending.

One gap member 55 is attached to each of the vertical frames 5.
The gap member 55 is formed in a long body that is long in the vertical direction, and is formed to have the same size as the vertical frame 5 in the vertical direction.
The gap member 55 is formed in a U-shaped cross section including a plate-like contact plate portion 55a and two projecting plate portions 55b extending from both ends of the contact plate portion 55a. As shown in FIG. 4, the contact plate portion 55a is disposed on the front side, and the projecting plate portions 55b are disposed on the rear side.
The gap member 55 is formed by bending a metal plate, specifically, a galvanized steel plate.

The gap member 55 is disposed behind the plate portion 31 and is housed in a gap between the flange portions 52 and 53 and attached to the vertical frame 5.
Specifically, the gap member 55 abuts the plate surface of the abutment plate portion 55a against the rear surface of the plate portion 31 inserted into the vertical frame 5, and the projection plate portions 55b projecting rearward. Is attached to the vertical frame 5 with its end abutting against the inner surface of the flange portion 53 of the vertical frame 5.

Each vertical frame 5 is attached to the plate portion 31 by a fastening member 59.
Specifically, the fastening member 59 is formed of bolts and nuts, and the shaft portion 59a is inserted into the flanges 52 and 53 of the vertical frame 5 and is inserted between the flanges 52 and 53. The plate portion 31 and the contact plate portion 55a of the gap member 55 are penetrated, and the end portions 59b on both sides of the fastening member 59 composed of bolt heads and nuts are in contact with the flange portions 52 and 53, respectively. Let me conclude.
The fastening member 59 is not limited to bolts and nuts, and other types of members capable of attaching the vertical frame 5 to the plate portion 31 such as rivets and pins may be used.

The rigidity of the vertical frame 5 is enhanced by attaching the gap member 55 to the inside thereof.
Specifically, when the external force is applied to the low-strength panel 3 because the plate portion 31 receives a strong wind, the vertical frame 5 is not easily deformed such as being bent. Further, in order to attach the vertical frame 5 to the plate portion 31, when the fastening member 59 passed through the flange portions 52 and 53 is fastened, the inner side surfaces of the flanges 52 and 53 are connected to the plate portion 31. And the respective protruding plate portions 55b of the gap member 55 are brought into contact with each other and the deformation thereof is suppressed, so that the fastening member 59 can be fastened with an appropriate force.

3 is a cross-sectional view taken along the line AA in FIG.
FIG. 3 is a cross-sectional view illustrating a state in which the low-strength panel 3 is installed between the columns 1, and illustrates a state in which the low-strength panel 3 in FIG. 4 is attached to the column 1.
In the low-strength panel 3, the vertical frame 5 is fixed to the support column 1 via a mounting bracket 12. The mounting bracket 12 is formed by bending a belt-shaped metal plate, one end 12b is fixed to the support column 1 by a bolt / nut BN2, and the other end 12a is bolted to the vertical frame 5. -It is fixed with nut BN1. Specifically, the mounting bracket 12 is fixed by bringing the plate surface of the end portion 12 a into contact with the flange portion 53 of the vertical frame 5.
Two mounting brackets 12 are attached to one vertical frame 5 with an interval in the vertical direction. That is, a total of four mounting brackets 12 are attached to the low-strength panel 3 and are installed between the columns 1.
In addition, although each said support | pillar 1 shown in FIG. 3 is formed in the rectangular cylindrical long body, it is not restricted to this, You may form in other shapes, such as a cylindrical long body.

Each horizontal frame 6 is formed in a long body that is long on the left and right.
As shown in FIG. 5, each horizontal frame 6 has a U-shaped cross section including a plate-like web portion 61 and two flange portions 62 and 63 respectively extending from both ends of the web portion 61. As shown in FIG. 5, the web portion 61 is disposed in the outer direction of the low-strength panel 3, and the flange portions 62 and 63 are disposed so as to protrude in the inner direction of the low-strength panel 3. ing. Specifically, as shown in FIG. 5, the horizontal frame 6 has the flange portion 62 disposed on the front side on the right side in the drawing and the flange portion 63 disposed on the rear side on the left side in the drawing.
Each of the horizontal frames 6 is attached to the plate portion 31 by inserting a side end of the plate portion 31 between the flange portions 62 and 63 arranged at intervals in the front-rear direction.
The horizontal frame 6 is formed by appropriately cutting a long shape material formed by extrusion molding of an aluminum alloy. The method of forming the horizontal frame 6 is not limited to this, and as other metals, a stainless alloy or a steel material may be used, and when these are used, a plate material may be formed by pressing or bending.

One gap member 65 is attached to each horizontal frame 6.
The gap member 65 is formed in a long body that is long in the left-right direction.
The gap member 65 is formed in a U-shaped cross section including a plate-like contact plate portion 65a and two projecting plate portions 65b extending from both ends of the contact plate portion 65a. As shown in FIG. 5, the contact plate portion 65a is disposed on the front side, and the projecting plate portions 65b are disposed on the rear side.
The gap member 65 is formed by bending a metal plate, specifically, a galvanized steel plate.

The gap member 65 is disposed behind the plate portion 31 and is housed in a gap between the flange portions 62 and 63 and attached to the horizontal frame 6.
Specifically, the gap member 65 abuts the plate surface of the abutment plate portion 65a against the rear surface of the plate portion 31 inserted into the horizontal frame 6, and the projection plate portions 65b projecting rearward. This end is brought into contact with the inner surface of the flange portion 63 of the horizontal frame 6 and attached to the horizontal frame 6.

One gap plate 66 is attached to each horizontal frame 6.
The gap plate 66 is formed in a long plate shape that is long in the left-right direction, and is formed of a galvanized steel plate.
The gap plate 66 is disposed in front of the plate portion 31 and is housed in a gap between the flange portions 62 and 63 and attached to the horizontal frame 6.
Specifically, the gap plate 66 is brought into contact with the front surface of the plate portion 31 inserted into the horizontal frame 6 at the rear surface thereof, and is brought into contact with the inner surface of the flange portion 62 of the horizontal frame 6. And attached to the horizontal frame 6.

Each horizontal frame 6 is attached to the plate portion 31 by a fastening member 69.
Specifically, the fastening member 69 is formed of a bolt and a nut, and the shaft portion 69a is inserted through the flanges 62 and 63 of the horizontal frame 6 and is inserted between the flanges 62 and 63. The end portions 69b on both sides of the fastening member 69 made of bolt heads and nuts are passed through the plate portion 31, the contact plate portion 65a of the gap member 65, and the gap plate 66, and the flange portions 62. , 63 are brought into contact with each other and fastened.
The fastening member 69 is not limited to bolts and nuts, and other types such as rivets and pins that can attach the horizontal frame 6 to the plate portion 31 may be used.

The horizontal frame 6, the gap member 65, and the gap plate 66 are fixed only to the plate portion 31 by the fastening member 69, and are not fixed to the vertical frame 5 or the gap member 55.
That is, the horizontal frame 6, the gap member 65, and the gap plate 66 can be easily removed from the low-strength panel 3 when the fastening with the plate portion 31 by the fastening member 69 is released or broken. take off.
The fixing here means fixing to a bolt, rivet, pin, etc., fixing by engagement via an engaging portion or a locking portion provided on the horizontal frame 6, fixing by an adhesive or adhesive, This means a structure that maintains the non-detachable connection between the horizontal frame 6 and the vertical frame 5 even when the fixing between the plate portion 31 and the horizontal frame 6 is released or broken, such as fixing by welding.

The horizontal frame 6 is enhanced in rigidity by attaching the gap member 65 and the gap plate 66 to the inside thereof.
Specifically, when the external force is applied to the low-strength panel 3 because the plate portion 31 receives a strong wind or the like, deformation such as bending of the horizontal frame 6 does not easily occur. Further, in order to attach the vertical frame 6 to the plate portion 31, when the fastening member 69 penetrated to each flange portion 62, 63 is fastened, the inner side surface of each flange 62, 63 is the plate portion 31. Since the deformation is suppressed by contacting each protruding plate portion 65b of the gap member 65 and the gap plate 66, the fastening member 69 can be fastened with an appropriate force.

In the horizontal frame 6, the end of the vertical frame 5 is inserted into the gap between the flanges 62 and 63.
That is, the horizontal frame 6 attached to the lower end of the plate portion 31 has the lower ends of the vertical frames 5 inserted into the gaps between the flanges 62 and 63, respectively, and the horizontal frame 6 attached to the upper end of the plate portion 31. In the frame 6, the upper ends of the vertical frames 5 are inserted into the gaps between the flanges 62 and 63, respectively.
Specifically, the end of each vertical frame 5 causes the outer surface of the flange 52 to contact the inner surface of the flange 62 and the outer surface of the flange 53 to contact the inner surface of the flange 63. It is inserted between the flanges 62 and 63 of the horizontal frame 6.
The gap member 65 and the gap plate 66 attached to each horizontal frame 6 are formed so that the left and right sizes are slightly smaller than the horizontal frames 6, and are inserted between the flanges 62 and 63. Arranged between the vertical frames 5 and attached to the horizontal frames 6.

When the end of each vertical frame is inserted between the flanges 62 and 63 of the horizontal frame 6, the horizontal frame 6 moves when the plate portion 31 is distorted due to wind or the like. Specifically, when the horizontal frame 6 tries to move in the front-rear direction due to distortion of the plate portion 31, the horizontal frame is brought into contact with the vertical frame 5 attached to the column and the flanges 62 and 63. 6 is restricted, the increase in distortion of the plate portion 31 is suppressed, and the overall rigidity of the low-strength panel 3 is increased.

FIG. 7 is a front view showing an example of a situation where the plate portion 31 of the low-strength panel 3 of FIG. 1 is broken.
In FIG. 7, the illustration of the normal panel 2 and the installation surface G is omitted, and the drawing is simplified.
Since the plate portion 31 of the low-strength panel 3 is easily broken, it can be easily broken by hitting or kicking the plate portion 31 in an emergency, and a gap S through which a person can pass can be formed.
At this time, each vertical frame 5 of the low-strength panel 3 is attached to each column 1 via the mounting bracket 12, so that it is supported by the column 1 even when the plate portion 31 is torn, and extends along the column 1. Thus, the arrangement state is maintained.

Further, the horizontal frame 6 arranged so as to block the person passing between the columns 1 and the gap member 65 and the gap plate 66 attached to the inside of the horizontal frame 6 are fixed only to the plate portion 31 by the fastening member 69. Therefore, as shown in FIG. 7, if the plate portion 31 near the fastening member 69 is broken, the horizontal frame 6, the gap member 65, and the gap plate 66 can be easily removed from the low-strength panel 3. .
By removing the horizontal frame 6 in this way, when a person tries to pass through the gap S formed in the plate portion 31, the face or body is not hit or scolded by the horizontal frame 6. It can be easily passed through.

Further, when the plate portion 31 is broken by hitting it or the like, the plate portion 31 in the vicinity of the fastening member 69 may not be broken well and the horizontal frame 6 may remain on the low-strength panel 3.
A person who evacuates in an emergency is expected to be in a state where a calm judgment cannot be made, and there is a possibility of forcibly trying to break through the low-strength panel 3 with the horizontal frame 6 remaining. However, a person who tries to pass through the gap S collides with the horizontal frame 6, and the plate portion 31 is further broken by the force applied at that time, so that the horizontal frame 6 comes off the low-strength panel 3 and a person easily passes. That is, by fixing the horizontal frame 6 only to the easily breakable plate portion 31, even if the horizontal frame 6 is supported by the plate portion 31 and remains, it is possible for a person to forcibly pass through. Sometimes people can be evacuated efficiently.

  In addition, the fence F which concerns on this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

  For example, in the embodiment shown in FIGS. 1 to 7, the vertical frame 5 and the horizontal frame 6 of the fence F are formed in a U-shaped cross section including one web portion and two flange portions. However, the present invention is not limited to this, and it may be formed in other shapes that can improve the rigidity of the plate portion 31 such as a flat plate shape or an H shape.

  In the embodiment shown in FIGS. 1 to 7, the end of the vertical frame 5 is inserted into the gaps between the flanges 62 and 63 of the horizontal frame 6. 6 may be inserted into the gaps between the flanges 52 and 53 of the vertical frame 5, and the end of the vertical frame 5 and the end of the horizontal frame 6 may be provided apart from each other.

  Moreover, in embodiment shown in FIGS. 1-7, although the horizontal frame 6 is being fixed to the upper and lower ends of the board part 31, it is not restricted to this, If the rigidity of the low intensity panel 3 is enough, a horizontal frame 6 may be fixed to only one of the upper end and the lower end of the plate portion 31.

DESCRIPTION OF SYMBOLS 1 Support | pillar 11 Support | pillar cap 12 Mounting bracket 2 Panel 3 Low-strength panel 31 Plate part 4 Display material 41 Cut 5 Vertical frame 51 Web part 52 Flange part 53 Flange part 55 Gap member 59 Fastening member 6 Horizontal frame 61 Web part 62 Flange part 63 Flange portion 65 Gap member 66 Gap plate 69 Fastening member F Fence G Installation surface S Gap

Claims (2)

A fence comprising a plurality of support columns standing on the installation surface at intervals, and a plurality of panels laid between the support columns,
A low-strength panel having a plate part that is easier to break than other panels is used for some of the plurality of panels.
The low-strength panel is fixed to the plate portion formed in a rectangular plate shape, a horizontal frame fixed to at least one of the upper end portion and the lower end portion of the plate portion, and left and right end portions of the plate portion, respectively. With a vertical frame,
Each vertical frame is attached to each column, the low-strength panel is installed between the columns, and the horizontal frame is fixed to the plate portion without being fixed to any of the vertical frames. A fence that can be destroyed in an emergency, characterized by The horizontal frame includes a web portion and two flange portions that are connected to the web portion and spaced apart from each other.
The upper edge or the lower edge of the plate portion is inserted and fixed in a gap between the flange portions, and the vertical frame fixed to the plate portion is inserted into the gap. Item 1. A fence that can be destroyed in an emergency according to item 1.

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