JPH1037502A - Earthquake resistant shelter for bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a bedridden old, sick, or healthy person sleeping in a bed from an earthquake by providing a steel pipe shelter. SOLUTION: A solid framework A that has an enough space to keep a bed 19 therein is formed with steel pipes. Protection boards 8 with numerous punch holes are installed as all or part of the exterior of the framework A except the entrance for the bed 19 in a manner that the bed 19 is put therein. The top and bottom portions of the framework A are composed of an upper frame 5 and a lower frame 1 respectively. Both the upper frame 5 and the lower frame 1 are connected with plural strut 10 adhered in-between. A reinforcement beam component 7 is installed at the center of the upper frame 5 and/or the lower frame 1. A beam component 11 is the stile for reinforcement in the middle of each strut 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic shelter for a bed having a structure capable of accommodating a bed therein.

[0002]

2. Description of the Related Art A large earthquake that struck the Hanshin area on January 17 last year was around 4 o'clock in the morning, so many people went to bed and futons. It is new to me that I was injured or injured by the furniture or ceiling of the room that fell, or by the beams or roof underlay. Because people are most vulnerable when sleeping, it is safe to have a space that can protect themselves from falling objects in the event of an earthquake at that time. In particular, elderly people and bedridden sick people cannot escape immediately, so if a safe evacuation space is formed around them, they may not feel safe.

An object of the present invention is to provide a bed-resistant seismic shelter that can protect a bedridden elderly person, a sick person, or a healthy person even if he or she is struck by an earthquake while sleeping on a bed. To offer.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention uses a metal pipe to form a three-dimensional frame having a space for accommodating a bed therein, and forms the outside of the frame. A protective plate provided with a large number of punch holes is stretched on all or a part of the portion except for the entrance side, and a bet is accommodated therein.

[0005] At this time, the bed can be moved to the side of the entrance, or a holding means can be provided inside the frame.

According to the present invention, in forming the skeleton, a portion forming a bottom portion and an upper portion thereof is formed of an upper frame and a lower frame, and a plurality of columns are connected and fixed between the frames. In addition, a reinforcing beam member may be attached to an intermediate portion of the upper frame and / or the lower frame, and a reinforcing bar member may be attached to an intermediate portion of each of the columns.

[0007] It would be desirable to mount a reinforcing beam member above the entrance portion of the framework to increase the seismic strength of the upper frame.

[0008]

According to the first aspect of the present invention, a three-dimensional frame using a metal pipe and a protection plate stretched on a portion forming the outside of the frame provide a tensile strength and a pressure resistance of the entire frame. Because of the increased seismic strength of the building, there is a concern that the framework and the protective plate cooperate with each other against severe pitching and especially rolling in the event of an earthquake. Even if things fall or fall, there is no risk of the frame being deformed and directly hitting the person on the bed stored inside, and it is also bedridden on the bed from front to back, left and right or from the top The protection plate can prevent falling objects and flying objects against the elderly, the sick, and the sleeping person.

[0009] According to the second aspect, the bed can be pulled out of the seismic shelter.

[0010] According to the third aspect of the present invention, even if a strong shaking is carried out, the player is not thrown out of the safe bed even if he violently shakes by holding or clinging to the holding means.

According to the fourth aspect of the present invention, the seismic strength is increased, and the assembly and disassembly are facilitated.

According to the fifth aspect, the seismic strength of the upper frame, especially on the entrance side, is increased.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment in which the present invention is applied to a single bed. In the drawings, reference numeral 1 denotes long and short frame members 2a, 2a,
8b and 2b are welded so as to have a substantially rectangular shape in a plane.
Is a lower frame formed by being connected and fixed by using the connection fitting 20 shown in FIG. 1. From a position corresponding to each corner of the lower frame 1, a short rectangular pipe also made of metal is directed upward. And a pair of rails 4, 4 also made of a metal square pipe are attached at appropriate intervals between the long frame members 2a, 2a. Is attached with a reinforcing bar member 2c. The rails 4 and 4 do not necessarily need to be square pipes. Various shapes and structures are conceivable. Each frame member 2a, 2a.2 of the lower frame 1
A protective plate made of a metal plate having a large number of punched holes as described later may be stretched between b and 2b. When a caster is attached to the leg of the bed, the rail 4 itself may be omitted. Further, the bet may be fixed in the shelter.

Next, reference numeral 5 denotes an upper upper frame, and the upper frame 5 is a long and short frame member 6 made of a metal square pipe.
a, 6a, 6b, and 6b are welded at their respective ends so as to form a planar rectangular shape, or are connected and fixed by connecting fittings 20 shown in FIG. 8 to form central portions of the long frame members 6a, 6a. Is mounted with a reinforcing beam member 7 also formed of a metal square pipe. Between the upper frame 5 and the reinforcing beam member 7,
Protective plate 8 made of metal plate provided with many punch holes 8a
Is attached by welding an attachment portion 8b provided by bending an edge thereof, and a short connecting pipe 9 made of a metal square pipe is directed downward from each corner of the upper frame 5. Is hanging.

Reference numeral 10 denotes a column provided with small-diameter connection portions 10a and 10b at its upper end and lower end as described above, and is also formed of a metal square pipe. Each pillar 10
In the middle part, the reinforcing bar members 11, which are also made of metal square pipes, are attached. The reinforcing bar members 11 attached to both sides of the skeleton A are welded to the columns 10. 7, the connecting portions 10a and 10b are fitted into the connecting pipes 3 and 9 of the lower frame 1 and the upper frame 5, respectively. It is a configuration that is fixed. 24 are recesses 1a, 5 provided in the upper frame 5 and the lower frame 1 for accommodating the heads of the mounting bolts 23.
It is a lid put on a. Reference numeral 12 denotes an intermediate support made of a square pipe made of metal, and mounting brackets 12a, 12a provided at upper and lower ends thereof are attached to long frame members 2a and 6a of the lower frame 1 and the upper frame 5 by mounting bolts 12b, It is fixed at 12b. The pair of reinforcing bars 13, 13 attached to the intermediate column 12 and the columns 10, 10 between the intermediate column 12 and the rear columns 10, 10 are provided with mounting brackets 13 a, 13 a provided at both ends thereof. Mounting bolts 13b, 13b
It is a configuration that is fixed with. And, between each of the pillars 10 constituting both ends of the frame A and the reinforcing bar member 11, four metal plate protection plates 14 provided with a large number of punch holes 14a are provided at the edges thereof. The mounting portion 14b is welded. The portions of the protective plate 14 which are in contact with the frame member 2b of the lower frame 1 and the frame member 6b of the upper frame 5 have their ends mounted on mounting plates 2d, 6c provided on the frame members 2b, 6b. It is configured to be fixed using 14c, 14c.

Reference numeral 15 denotes a protective plate forming the rear portion of the frame, which is also made of a metal plate and has a large number of punch holes 15a. The protection plate 15 is composed of the support 10 and the intermediate support 1.
2 and the mounting portion 15b of the reinforcing bar member 13 with the mounting screw 1
5c is used for fixing, but may be welded separately from the beginning.

On the upper side of the entrance portion of the frame A, a support 10
And a reinforcing beam member 16 is fixedly attached to the frame member 6a. The reinforcing beam member 16 is a strong one in which a large number of braces 16b are put in a frame 16a, and 16c is a decoration. 17 is a corner fitting, which is attached to make the seismic shelter more seismic resistant.
Although not shown, the corner fitting 17 is screwed. Reference numeral 18 denotes a gripping means, which is a frame member 6 of the upper frame body 5.
is fixed to the reinforcing bar member 13 by means of screws or the like via a mounting bracket 18a. A single bed 19 is accommodated in the seismic shelter thus configured, as shown in FIG.

In the above embodiment, the metal square pipe used is a steel 50 mm square having a wall thickness of 2.3 mm, the protection plate is also made of a steel plate, and the material thickness is 1.2 mm.
mm. The members constituting the skeleton are not necessarily limited to square pipes. Various materials other than steel, such as stainless steel, aluminum, and duralumin, are used. It is also conceivable to use a synthetic resin having mechanical strength such as ABS. Further, the method of assembling the skeleton and the method of attaching the protection plate are not limited to those of the embodiment.
There are various combinations. For example,
The intermediate column 12 may be connected in the same manner as the other columns 10. The mounting method of the protection plate is basically welding and screwing, but at the time of screwing, the mounting plate and the mounting hole protruding from the support 10, the intermediate support 12 and the reinforcing bar members 11, 13 are screwed. It is possible to do.

A pair of fixed rollers 21 and 21 mounted on or engaged with the rails 4 and 4 are attached to the lower side of the single bed 19, and a pair of free supporting rollers 22 , 22 are bendably mounted, and when the single bed 19 is pulled out to the near side, the universal supporting rollers 22, 22 are pulled out and fixed, and pulled out to the front side. However, the present invention is not limited to the examples, and various embodiments can be considered. For example, rails may be provided on both sides of the shelter, or the single bet 19 may be configured to be more completely pulled out to the near side. Further, the single bed 19 may be supported by bearings installed between the four casters and a guide rail extending to the center between the frame members 2a, 2a, so that the single bed 19 can be easily pulled out to the near side. By taking measures to lock the single bed 19 to the seismic shelter in the normal state, it is possible to effectively prevent the single bed itself from jumping out of the seismic shelter due to shaking during an earthquake. Like. The basic configuration is the same when the single bet accommodated inside is a double bet. Only the volume is increased.

[0020]

Since the present invention is configured as described above, the following effects can be obtained.

According to the first aspect of the present invention, the frame made of metal pipes and the protection plate stretched between the frames increase the seismic strength such as pressure resistance and tensile strength. The shelter is not destroyed by the ceiling or beams that fall from the upper part even in the event of a large earthquake that can destroy the shelter, and it is possible to protect the safety of the bed stored inside and the person sleeping on the bed In addition, the protection plate can prevent other furniture, flying objects, and the like colliding from the side, and protect the safety of the person sleeping on the bed.

According to a second aspect of the present invention, when a bedridden elderly or sick person is wiped, a sheet is changed, or clothes are changed, the bed is pulled out to the nursing side. A person can go around the other side of the bet.

According to the present invention, it is possible to prevent the body from being thrown out of the bed, that is, out of the seismic shelter due to the holding or clinging of the holding means when an earthquake occurs. Is what you can do.

According to the fourth aspect of the present invention, packing and transportation in a factory are facilitated, and assembling on site is also facilitated.

According to the fifth aspect of the present invention, since the portion on the entrance side of the shelter is reinforced, the seismic strength is increased, and the frame is deformed by the earthquake, and the shelter is destroyed by falling or falling of a heavy object. Or deformation can be prevented as much as possible.

[Brief description of the drawings]

FIG. 1 is a front view of a seismic shelter for a bed according to the present invention.

FIG. 2 is a side sectional view of the seismic shelter shown in FIG.

FIG. 3 is an exploded perspective view of the seismic shelter shown in FIG.

FIG. 4 is a partial front sectional view of the seismic shelter shown in FIG. 1;

FIG. 5 is a partial plan sectional view of the seismic shelter shown in FIG. 1;

FIG. 6 is a partial side sectional view of the seismic shelter shown in FIG. 1;

FIG. 7 is an enlarged cross-sectional view of a connecting portion of a column of the seismic shelter shown in FIG.

FIG. 8 is a perspective view of a connection fitting.

FIG. 9 is an explanatory diagram for explaining an example of use of the earthquake-resistant shelter shown in FIG. 1;

[Explanation of symbols]

 A Frame 1 Lower frame 2a, 6a Frame member (long) 2b, 6b Frame member (short) 3 Connection pipe 4 Rail 5 Upper frame 7, 16 Reinforcement beam member 8, 14, 15 Protective plate 9 Connection pipe 10 Support 11 , 13 Reinforcement bar member 12 Intermediate support column 18 Clamping means 19 Single bed 20 Connection fitting

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 22, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 3

[Correction method] Change

[Correction contents]

3. The bed for a bed according to claim 1, wherein a holding means using a metal pipe is provided on an inner side of a skeleton using a metal pipe. Seismic shelter. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] September 22, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Seismic shelter for beds

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic shelter for a bed having a structure capable of accommodating a bed therein.

[0002]

2. Description of the Related Art A large earthquake that struck the Hanshin area on January 17 last year was around 4 o'clock in the morning, so many people went to bed and futons. It is new to me that I was injured or injured by the furniture or ceiling of the room that fell, or by the beams or roof underlay. Because people are most vulnerable when sleeping, it is safe to have a space that can protect themselves from falling objects in the event of an earthquake at that time. In particular, elderly people and bedridden sick people cannot escape immediately, so if a safe evacuation space is formed around them, they may not feel safe.

An object of the present invention is to provide a bed-resistant seismic shelter that can protect a bedridden elderly person, a sick person, or a healthy person even if he or she is struck by an earthquake while sleeping on a bed. To offer.

[0004]

In order to achieve the above-mentioned object, the present invention provides a three-dimensional frame having a space for accommodating a bed therein by using a metal pipe. And an upper frame and a lower frame constituting the upper part, a plurality of pillars connected and fixed between the respective frames except for an entrance portion thereof, and an intermediate portion of the upper frame and / or the lower frame. A reinforcing member to be inserted, a reinforcing bar member connected and fixed to an intermediate portion of each of the columns, and a reinforcing beam member attached above the entrance portion of the upper frame so as to increase its seismic strength. A protective plate provided with a large number of punch holes is stretched in all or a part except for the entrance side in a portion forming the outside of the skeleton, and a rail is attached to the lower frame. The bet is set to be movable toward the entrance. , Normal is provided with locking means for fixing the bet on the rail, characterized in that a means grab can caught while asleep the bet to the scaffold.

[0005]

[Function] A three-dimensional frame using a metal pipe is easy to assemble. The protective plate stretched on the outer side of the frame allows the entire frame to have a seismic strength such as tensile strength and pressure resistance. Because of the increase, the frame and the protection plate cooperate with each other in response to severe pitching and especially rolling in the event of an earthquake. Come and fall,
There is no risk of the frame being deformed and directly hitting the person on the bed stored inside, and falling for bedridden elderly people, sick people, or sleeping people on the bed from front to back, right and left or from the top For objects and flying objects, the protection plate can prevent this.

[0006] Since the bed is movably mounted on the rail, it is easy to put the bed in and out of the seismic shelter. The gripping means will cling to it or cling to it so that it will not be thrown out of the safe bed even in the event of a severe shake. When the reinforcing beam member is attached to the upper frame constituting the entrance portion of the skeleton, the seismic strength on the entrance side of the seismic shelter increases.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment in which the present invention is applied to a single bed. In the drawings, reference numeral 1 denotes long and short frame members 2a, 2a,
8b and 2b are welded so as to have a substantially rectangular shape in a plane.
Is a lower frame formed by being connected and fixed by using the connection fitting 20 shown in FIG. 1. From a position corresponding to each corner of the lower frame 1, a short rectangular pipe also made of metal is directed upward. And a pair of rails 4, 4 also made of a metal square pipe are attached at appropriate intervals between the long frame members 2a, 2a. Is provided with a reinforcing member 2c. The rails 4 and 4 do not necessarily need to be square pipes. Various shapes and structures are conceivable. Each of the frame members 2a, 2a and 2b of the lower frame 1
A protective plate made of a metal plate having a large number of punched holes as described later may be stretched between 2b.

[0008] Next, reference numeral 5 denotes an upper upper frame, and the upper frame 5 is a long and short frame member 6 made of a metal square pipe.
a, 6a, 6b, and 6b are welded at their respective ends so as to form a planar rectangular shape, or are connected and fixed by connecting fittings 20 shown in FIG. 8 to form central portions of the long frame members 6a, 6a. Is attached with a reinforcing member 7 also made of a metal square pipe. Between the upper frame 5 and the reinforcing member 7, a protective plate 8 made of a metal plate having a large number of punch holes 8a is provided.
A short connecting pipe 9 made of a metal square pipe is suspended downward from each corner of the upper frame 5 from the corner of the upper frame body 5 while being welded by welding an attachment portion 8b provided by bending the edge thereof. Has been established.

Reference numeral 10 denotes a support column having small-diameter connection portions 10a and 10b provided at its upper end and lower end as described above, and is also formed of a metal square pipe. Each pillar 10
In the middle part, the reinforcing bar members 11, which are also made of metal square pipes, are attached. The reinforcing bar members 11 attached to both sides of the skeleton A are welded to the columns 10. 7, the connecting portions 10a and 10b are fitted into the connecting pipes 3 and 9 of the lower frame 1 and the upper frame 5, respectively. It is a configuration that is fixed. 24 are recesses 1a, 5 provided in the upper frame 5 and the lower frame 1 for accommodating the heads of the mounting bolts 23.
It is a lid put on a. Reference numeral 12 denotes an intermediate support made of a square pipe made of metal, and mounting brackets 12a, 12a provided at upper and lower ends thereof are attached to long frame members 2a and 6a of the lower frame 1 and the upper frame 5 by mounting bolts 12b, It is fixed at 12b. The pair of reinforcing bars 13, 13 attached to the intermediate column 12 and the columns 10, 10 between the intermediate column 12 and the rear columns 10, 10 are provided with mounting brackets 13 a, 13 a provided at both ends thereof. Mounting bolts 13b, 13b
It is a configuration that is fixed with. And, between each of the pillars 10 constituting both ends of the frame A and the reinforcing bar member 11, four metal plate protection plates 14 provided with a large number of punch holes 14a are provided at the edges thereof. The mounting portion 14b is welded. The portions of the protective plate 14 which are in contact with the frame member 2b of the lower frame 1 and the frame member 6b of the upper frame 5 have their ends mounted on mounting plates 2d, 6c provided on the frame members 2b, 6b. It is configured to be fixed using 14c, 14c.

Reference numeral 15 denotes a protective plate forming the rear part of the frame, which is also made of a metal plate and has a large number of punch holes 15a. The protection plate 15 is composed of the support 10 and the intermediate support 1.
2 and the mounting portion 15b of the reinforcing bar member 13 with the mounting screw 1
5c is used for fixing, but may be welded separately from the beginning.

[0011] On the upper side of the entrance portion of the frame A, a support 10 is provided.
And a reinforcing beam member 16 is fixedly attached to the frame member 6a. The reinforcing beam member 16 is a strong one in which a large number of braces 16b are put in a frame 16a, and 16c is a decoration. 17 is a corner fitting, which is attached to make the seismic shelter more seismic resistant.
Although not shown, the corner fitting 17 is screwed. Reference numeral 18 denotes a gripping means, which is a frame member 6 of the upper frame body 5.
is fixed to the reinforcing bar member 13 by means of screws or the like via a mounting bracket 18a. A single bed 19 is accommodated in the seismic shelter thus configured, as shown in FIG.

In the above embodiment, the metal square pipe used is a steel 50 mm square having a wall thickness of 2.3 mm, the protection plate is also made of a steel plate, and the material thickness is 1.2 mm.
mm. The members constituting the skeleton are not necessarily limited to square pipes. Various materials other than steel, such as stainless steel, aluminum, and duralumin, are used. It is also conceivable to use a synthetic resin having mechanical strength such as ABS. Further, the method of assembling the skeleton and the method of attaching the protection plate are not limited to those of the embodiment.
There are various combinations. For example,
The intermediate column 12 may be connected in the same manner as the other columns 10. The mounting method of the protection plate is basically welding and screwing, but at the time of screwing, the mounting plate and the mounting hole protruding from the support 10, the intermediate support 12 and the reinforcing bar members 11, 13 are screwed. It is possible to do.

A pair of fixed rollers 21 and 21 mounted on or engaged with the rails 4 and 4 are attached to the lower side of the single bed 19, and a pair of free supporting rollers 22 , 22 are bendably mounted, and when the single bed 19 is pulled out to the near side, the universal supporting rollers 22, 22 are pulled out and fixed, and pulled out to the front side. However, the present invention is not limited to the examples, and various embodiments can be considered. For example, rails may be provided on both sides of the shelter, or the single bet 19 may be configured to be more completely pulled out to the near side. Further, the single bed 19 may be supported by bearings installed between the four casters and a guide rail extending to the center between the frame members 2a, 2a, so that the single bed 19 can be easily pulled out to the near side. The single bed 19 is provided with a locking means (not shown) that is normally locked to the seismic shelter, so that the single bed itself jumps out of the seismic shelter due to shaking during an earthquake. Can be effectively prevented. The basic configuration is the same when the single bet accommodated inside is a double bet.
Only the volume is increased.

[0014]

Since the present invention is configured as described above, the following effects can be obtained.

The framework made of metal pipes is easy to assemble and disassemble, so that it can be easily assembled in a room of an existing building, and has a rigid structure using metal pipes. The protection plate stretched between the frames increases the seismic strength, such as pressure resistance and tensile strength. Without breaking the shelter, it is possible to protect the bet stored inside and the safety of the physical life of the person sleeping on the bed,
Protective plates prevent other furniture, flying objects, and other objects colliding from the side, thereby protecting the safety of the person sleeping on the bed.

Since the bed can be moved on and off the seismic shelter by moving on the rails, the bed can be used to wipe a bedridden elderly or sick person, change sheets, or change clothes. By pulling out to the side, the caregiver can go around to the opposite side of the bet, and since the bet moves on the rail track, even if a heavy sick person is loaded, it can be put in and out. The effect that it becomes easy to perform can be produced.

Furthermore, the gripping means can prevent the body from being thrown out of the bed, that is, out of the seismic shelter, by being gripped or clinging to the gripping means when an earthquake occurs. Things.

Since the reinforcing beam member reinforces the portion on the entrance side of the frame, the seismic strength is increased, and the frame is deformed by the earthquake, and the shelter is broken or deformed by the falling or falling of heavy objects. Is prevented as much as possible.

[Brief description of the drawings]

FIG. 1 is a front view of a seismic shelter for a bed according to the present invention.

FIG. 2 is a side sectional view of the seismic shelter shown in FIG.

FIG. 3 is an exploded perspective view of the seismic shelter shown in FIG.

FIG. 4 is a partial front sectional view of the seismic shelter shown in FIG. 1;

FIG. 5 is a partial plan sectional view of the seismic shelter shown in FIG. 1;

FIG. 6 is a partial side sectional view of the seismic shelter shown in FIG. 1;

FIG. 7 is an enlarged cross-sectional view of a connecting portion of a column of the seismic shelter shown in FIG.

FIG. 8 is a perspective view of a connection fitting.

FIG. 9 is an explanatory diagram for explaining an example of use of the earthquake-resistant shelter shown in FIG. 1;

[Description of Signs] A Frame 1 Lower frame 2a, 6a Frame member (long) 2b, 6b Frame member (short) 2c, 7 Reinforcement member 3 Connection pipe 4 Rail 5 Upper frame 16 Reinforcement beam member 8, 14, 15 Protective plate 9 Connecting pipe 10 Prop 11, 13 Reinforcement bar member 12 Intermediate post 18 Clamping means 19 Single bed 20 Connection fitting

Claims (5)

[Claims] 1. A three-dimensional frame having a space for accommodating a bed therein is formed by using a metal pipe, and a part of the frame that forms the outside thereof has a large number of portions, all or a part of which except the entrance side. A seismic shelter for beds, characterized in that a protective plate provided with punch holes is stretched and a bed is accommodated inside. 2. A seismic shelter for a bed according to claim 1, wherein the bed is movable towards the side of the entrance. 3. The seismic shelter for a bed according to claim 1, wherein gripping means is provided inside the frame. 4. When forming the frame, a portion forming a bottom portion and an upper portion is formed by an upper frame and a lower frame, and a plurality of columns are connected and fixed between the frames, and The reinforcing beam member is attached to an intermediate portion of the upper frame and / or the lower frame, and a reinforcing bar member is attached to an intermediate portion of each of the columns. Seismic shelter for beds. 5. The bed for a bed according to claim 1, wherein a reinforcing beam member for further increasing the seismic strength of the upper frame is attached above the entrance portion of the frame. Seismic shelter.