JP2003119878A - Balcony - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a balcony capable of simply and quickly realizing a space having the ventilation property in the summer time and simply and quickly realizing a sunroom in the winter time. SOLUTION: In this balcony in which a handrail 5 having the ventilation property is provided on a fringe part of a balcony floor 3 and a hood 4 whose depth is substantially same dimension as depth of the balcony floor 3 is provided above the balcony floor 3, winding type shutter devices 11a to 11c extending along a fringe part of each side of the hood 4, respectively, are attached to each side of the hood 4, flexible shutter members 12a to 12c allowing light to penetrate are wound in the shutter devices 11a to 11c, and locking hooks 15a to 15c locking lower end parts of the shutter members 12a to 12c when the shutter members 12a to 12c are pulled out of the shutter devices 11a to 11c up to the vicinity of the balcony floor 3 to cover a wind passage 8 of the handrail 5 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balcony capable of providing a comfortable space throughout the year.

[0002]

2. Description of the Related Art As a conventional balcony, for example, there is one disclosed in Japanese Patent Laid-Open No. 1-137054. In this balcony, a large number of handrails are arranged at narrow intervals along the edge of the balcony to provide air permeability and to block the line of sight from the outside.

In addition, conventional balconies and balconies have
As disclosed in Japanese Unexamined Patent Publication No. 8-68218, an assembling sash frame is attached to a veranda or a balcony in winter and the like, and a window glass is attached to the sash frame to provide a sunroom on the veranda or the balcony. There is something I did.

[0004]

However, in the balcony disclosed in JP-A-1-137504,
Because it is breathable throughout the year, it was not possible to make the balcony a comfortable space in winter.

Further, the balcony or veranda disclosed in Japanese Patent Laid-Open No. 8-68218 has air permeability. However, in order to convert the balcony or veranda into a solarium in winter, it is necessary to install the sash frame on the balcony or veranda, and in summer it is necessary to remove the sash frame, which is troublesome. .

[0006] Therefore, an object of the present invention is to provide a balcony that can be easily and quickly made into a breathable space in summer and can be easily and quickly made into a solarium in winter. It is a thing.

[0007]

In order to achieve this object, the balcony of the invention of claim 1 is provided with a breathable handrail on the edge of the balcony floor and above the balcony floor. In a balcony provided with an eaves, a retractable shutter device extending along the edges of each side of the eaves is attached to the eaves, and the shutter device is a light-transmissive and flexible shutter member. And a locking means for locking the lower end of the shutter member when the shutter member is pulled out from the shutter device to the vicinity of the balcony floor. When the shutter is pulled out from each shutter device to the vicinity of the balcony floor and locked by the locking means, a sun room is formed between the shutter members. Characterized in that it is made.

Further, in order to achieve the above-mentioned object, the balcony of the invention according to claim 2 is provided with breathable handrails on the edges of the balcony floor, and the depth is the depth of the balcony floor. In a balcony in which an eaves having substantially the same size as that of the eaves is provided above the balcony floor, a retractable shutter device extending along each edge of each side of the eaves is directly or indirectly attached to each side of the eaves. And a light-transmissive and flexible shutter member is wound around the shutter device, and the shutter member is pulled out from the shutter device to the vicinity of the balcony floor to form the ventilation part of the handrail. A locking means for locking the lower end of the shutter member when covered is provided.

According to the above-mentioned structures of claims 1 and 2, the breathability of the handrail can be secured by winding the shutter member around the shutter device. In addition, the shutter member is pulled out from the shutter device to the vicinity of the balcony floor, and the lower end portion of the shutter member is locked by the locking means, thereby covering the ventilation part of the handrail and between the balcony floor and the eaves. Can be a solarium.
Since the pulling of the shutter member from the shutter device and the winding of the shutter member on the winding device can be performed easily and quickly, the balcony can be easily and quickly ventilated in the summer. In winter, the balcony can be easily and quickly turned into a solarium. The locking means can be provided on the guide portion, the balcony floor, or the handrail.

Further, a balcony according to a third aspect of the invention is the balcony according to the first or second aspect, wherein an eaves supporting portion for supporting the eaves is provided at a corner portion of the balcony floor, and the eaves supporting portion is provided. Is provided with a guide portion extending from the balcony floor to the retractable shutter device, and a side edge of the shutter member is engaged with the guide portion so as to be vertically movable.

According to this structure, since the guide portion is provided on the eave support portion which is provided in advance to support the eaves, it is not necessary to separately provide a member for attaching the guide portion. In addition, the eaves support part has an outer wall or a pillar of a building to which the eaves are attached.

Further, in the balcony of the invention of claim 4, in the balcony of claim 1 or 2, the shutter member is pulled out from each of the shutter devices to the vicinity of the balcony floor to cover the ventilation part of the handrail. Sometimes, a balcony is provided with a connecting means for connecting the side edges of the adjacent shutter members.

According to this structure, the balcony can be easily and promptly turned into a sunroom without a guide section or the like.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. [Structure] In FIG. 1, 1 is an outer wall of the building, and 2 is a balcony protruding from the outer wall 1. The balcony 2 has a balcony floor 3 attached to the outer wall 1 and an eaves 4 located above the balcony floor 3 and attached to the outer wall (eave support portion) 1.

The balcony floor 3 is formed in a rectangular shape in plan view as shown in FIG. Moreover, the eaves 4 are formed so that the depth thereof is substantially the same as the depth of the balcony floor 3 and the dimension along the outer wall 1 is substantially the same as the dimension along the outer wall 1 of the balcony floor 3. ing.

A breathable handrail 5 is provided on the edge of the balcony floor 3. The handrail 5 includes handrails 6 and 6 projecting from the corners of the balcony floor 3 between the edges, and a handrail portion 5a provided between the handrails 6 and 6.
A handrail portion 5b provided between the handrails 6 and 6 and the outer wall 1,
With 5c. The handrail portion 5a has a plurality of crosspiece members 7 which are bridged between the handrails 6 and 6 at equal pitches in the vertical direction, and the handrail portions 5b and 5c are provided at equal pitch intervals in the vertical direction. A plurality of crosspiece members 7 bridged between the child 6 and the outer wall 1.
Have.

The crosspiece members 7 are, as shown in FIG.
The inner side surface 7a is formed to have a smaller vertical width than the outer side surface 7b, and the upper surface 7c is inclined downward from the upper edge of the outer side surface 7b toward the upper edge of the inner side surface 7a.
d is inclined upward from the lower edge of the outer side surface 7b toward the lower edge of the inner side surface 7a. Thereby, each crosspiece member 7
The upper and lower surfaces 7c and 7d are formed in a taper shape toward the inner side surface 7a and have a trapezoidal shape. Therefore, a tapered air passage (ventilation portion) 8 having a small ventilation resistance is formed between the upper and lower crosspiece members 7, 7.

Moreover, the distance between the upper and lower crosspiece members 7, 7 is relatively small, and the outer surface 7 of each crosspiece member 7 is formed.
The length (depth width) from b to the inner side surface 7a is formed sufficiently longer than the vertical length (height width) so that the line of sight 9 from below does not reach the inside of the handrail 5. There is. Therefore, since the handrail 5 is a blind for the line of sight from below without impairing the air permeability, the interior of the handrail 5 is a comfortable space where the line of sight of others is not a concern.

Further, between the left and right corners of the balcony floor 3 and the left and right corners of the eaves 4, pillars 10, 10 extending vertically along the handrails 6, 6 are interposed as eaves supporting members. (See FIGS. 1, 3 and 6). A roll-up type shutter device 11a extending along the front edge (front side) of the eaves 4 is disposed between the upper ends of the columns 10 and 10. The shutter device 11a is directly attached to the lower surface of the front edge portion of the eaves 4. In addition, prop 1
Retractable shutter devices 11b and 11c are interposed between the upper ends of 0 and 10 and the outer wall (overhanging support) 1.
The shutter devices 11b and 11c are directly attached to the lower surface of the side edge portion (side edge) of the eaves 4. By attaching the shutter device 11a to the columns 10 and 10, the shutter device 11a is indirectly attached to the eaves 4, and the shutter devices 11b and 11c are attached to the columns 10 and 10 and the outer wall 1.
Alternatively, the b and 11c may be indirectly attached to the eaves 4.

Each of the shutter devices 11a to 11c has a shutter member 12a, 12b, 12c which is wound by a winding means such as a spiral spring (not shown). Each shutter member 12a, 12b, 12c is formed of a material having translucency, weather resistance (climate resistance), and strength. A resin material such as polycarbonate can be used as this material. In addition, the shutter member 12a,
12b and 12c may be transparent, semi-transparent, or colored.

Each shutter member 12a, 12b, 1
An edge shape retention member 1 made of metal or hard resin is provided at the lower edge of 2c.
3a, 13b, 13c are attached. As shown in FIGS. 1, 5 (a) and 5 (b), U-shaped pull-out knobs 14a, 14b, and 14c are provided at the center portions in the width direction of the edge shape retaining members 13a, 13b, and 13c. Each is provided. The knobs 14a, 14b, 14c are also used as locked portions for locking the shutter members 12a, 12b, 12c on the balcony floor 3 side.

Further, each knob 14 is provided on the balcony floor 3.
Lock hooks 15 located below a, 14b, 14c
a, 15b, 15c are attached as locking means. The locking hooks 15a, 15b, 15c are shown in FIG.
As shown in (a), the support shafts 16a, 16b, 16c may be rotatably mounted on the balcony floor 3 or may be fixed on the balcony floor 3.

Further, the shutter device 11 of each pillar 10 is provided.
On the side surface of a, 11b or 11a, 11c, FIG.
The guide rail 18 is formed with a guide groove 17 as shown in FIG. 2 and a guide groove 18a is provided in a portion of the outer wall 1 corresponding to the shutter devices 11b and 11c.
Is attached. Each of the guide grooves 17 extends from the balcony floor 3 to the shutter device 11a or 11b or 1.
It extends to 1c. Further, the guide rail 18 extends from the balcony floor 3 to the shutter device 11b or 11c. Both side edges of the shutter member 12a are engaged with the guide grooves 17, 17 facing each other so as to be vertically movable. Further, one side edge of the shutter members 12b, 12c is engaged with the other guide grooves 17, 17 so as to be vertically movable, and the other side edge of the shutter members 12b, 12c is engaged with the respective guide grooves 18a, 18a. It is engaged so that it can move up and down.

The guide grooves 17 and 18a are shown in FIG. 4 (b).
As shown in FIG. 1, the edge-shaped member 1 is formed in a T shape.
3a, 13b, 13c both side edges are formed in a T shape,
By engaging the side edge portions of the edge shape retaining members 13a, 13b, 13c with the guide grooves 17 or 18a, the shutter member 1
The side edges of 2a, 12b, 12c are guide grooves 17 or 18
It may be configured so as not to come off from a.

In FIG. 1, reference numeral 1a is a window opening provided in the outer wall 1 for entering and leaving the balcony 2 from a living room (not shown), and 1b is a window glass provided in the window opening 1a. [Operation] Next, the operation of the balcony 2 having such a configuration will be described.

According to this structure, in the season when the temperature is high such as summer, the breathability of the handrail 5 can be secured by winding the shutter members 12a to 12c around the shutter devices 11a to 11c. In this state, if there is a flow of wind or the like in the outside air, the wind blows between the cross members 7, 7 (ventilation part).
It can flow into the space inside the handrail 5 via 8. Moreover, the line of sight 9 from below does not reach the inside of the handrail 5. Therefore, in summer or the like, the space inside the balcony 2 can be used as a comfortable space.

Further, in a low temperature such as winter, the shutter members 12a to 12c are attached to the shutter device 1.
Pull out from 1a to 11c to the balcony floor 3 vicinity,
Each knob 14 on the lower end of the shutter members 12a to 12c
a, 14b, 14c are locking hooks 15 on the balcony floor 3
The air passage (ventilation part) 8 of the handrail 5 is covered by locking with a, 15b, and 15c, respectively, and the balcony floor 3 and the eaves 4 are covered.
The space between and can be a solarium.

At this time, the locking hooks 15a, 15b, 15
c can be easily locked to the knobs 14a, 14b, 14c by rotating around the support shafts 16a, 16b, 16c and inserting it into the space of the knobs 14a, 14b, 14c. Further, by performing the reverse operation, the locking hooks 15a, 15b, 15c are moved to the knobs 14a, 14b,
It can be removed from 14c.

The slight gap formed between the shutter members 12a to 12c and the balcony floor 3 is shown in FIG.
As shown in (a), a heat insulating material 19 such as a foam member is interposed between the shutter members 12a to 12c and the lower portion of the handrail 5 to easily close the door. Therefore, it is possible to prevent cold outside air from entering the balcony 2, and sunlight penetrates through the shutter members 12a to 12c and enters the space inside the balcony 2 to warm the space inside the balcony 2, so that in winter The space inside the balcony 2 can be made comfortable.

By setting the mounting positions of the knobs 14a, 14b, 14c on the side surfaces of the edge shape retaining members 13a, 13b, 13c, the shutter members 12a-12c are pulled out to the balcony floor 3 and the shutter members 12a-12c are removed. The lower end may be fixed on the balcony floor 3. In this case, the heat insulating material 19 becomes unnecessary.

Such shutter members 12a-12c
Of the shutter devices 11a to 11c, and the shutter devices 11a to 11c of the shutter members 12a to 12c.
Winding onto 11c can be performed easily and quickly, so that the balcony 2 can be easily and quickly made into a breathable space in the summer, and the balcony 2 can be easily and quickly used as a sunroom in the winter. can do. The locking means can be provided on the column 10, the guide rail 18 or the handrail 5.

Further, in the embodiment described above, the knobs 14a, 14b, 14 are used as the locked portions for locking the shutter members 12a, 12b, 12c on the balcony floor 3 side.
Although an example using c has been shown, the present invention is not necessarily limited to this. For example, the edge shape retention members 13a, 13b, 13
A locking hole as a locked portion may be provided in c. In this case, a plurality of locking holes are provided at intervals in the longitudinal direction, and locking hooks are provided on the balcony floor 3 so as to correspond to the plurality of locking holes, and the shutter members 12a, 12b, 1 are provided.
It is possible to stably support the balcony floor 3 of 2c. [Modification 1] In the embodiment described above, the shutter member 1
Although the side portions of 2a to 12c are configured to be guided vertically by the guide groove 17 or 18a, the guide groove 17 or 18a does not necessarily have to be provided.

For example, the shutter members 12a to 12c as shown in FIG. 7 are locked to the balcony floor 3 in the same manner as described above, and the adjacent side edges of the shutter members 12a to 12c are as shown in FIG. A velcro fastener, that is, a velcro tape (registered trademark) 20 or a string 21 as shown in FIG. When using the magic tape (registered trademark) 20, one of the engaging members 20a and 20b forming the magic tape (registered trademark) 20 is fixed to the side edge portions of the shutter members 12a to 12c. When the string 21 is used, the shutter member 12
It is advisable to provide the string insertion holes 22 at the side edge portions of a to 12c. The string 21 may be attached to the side edge portions of the shutter members 12a to 12c.

According to this structure, the balcony 2 can be simply and quickly used as a sunroom without a guide rail or the like.

Even in such a case, the airtightness with the outer wall 1 can be easily ensured by providing the guide groove 18a. [Modification 2] In the embodiment described above, the depth of the eaves 4 is formed to be substantially the same as the depth of the balcony 2, and the shutter devices 11a, 11b, 11c are attached to the lower surface of the edge of each side of the eaves 4. , Shutter members 12a-12c
Is pulled out to the balcony floor 3, a sunroom is formed between the shutter members 12a to 12c so that the entire balcony 3 serves as a sunroom, but the invention is not necessarily limited to this configuration.

For example, the depth dimension of the eaves 4 may be shorter than the depth dimension of the balcony floor 3 (the dimension in the horizontal direction in the figure) as shown in FIGS. In addition, FIG.
As shown in FIG. 5, the shutter device 11a is attached to the front side surface (end surface on the front end side) of the eaves 4, and the shutter device 11a
Similarly, b and 11c may be attached to both side surfaces of the eaves 4 (11c side is not shown). Further, as shown in FIG. 11, the shutter devices 11a to 11c may be mounted on the edge portion (upper surface) of the eaves 4. Further, as shown in FIG. 12, the shutter devices 11a to 11c may be attached to the intermediate portion (the 11c side is not shown) of the lower surface of the eaves 4.

By doing so, as shown in FIG. 13, the sunroom having a floor area smaller than the floor area of the balcony 2 is located on the balcony 2 between the shutter members 12a to 12c pulled out from the shutter devices 11a to 11c. SR can be provided. In the structure for mounting shown in FIG. 12, the position and floor area of the sunroom SR can be freely changed by changing the mounting positions of the shutter devices 11a to 11c.

Note that, in FIGS. 10 to 13, each member is schematically omitted for convenience of description. [Modification 3] Further, in the above-described embodiment, as shown in FIG. 5A, a heat insulating material 19 such as a foam member is interposed between the shutter members 12a to 12c and the lower portion of the handrail 5. so,
Although the slight gap formed between the shutter members 12a to 12c and the balcony floor 3 is covered, the heat insulating material 19 is not always necessary.

By not providing the heat insulating material 19, when the shutter members 12a to 12c are pulled out to the lower part of the balcony floor 3 to form a sunroom between the shutter members 12a to 12c, necessary ventilation into the sunroom is required. In order to secure the amount, it is possible to connect the solar room and the outside for ventilation through a slight air passage 8 below the handrail 5.

In this case, the shutter members 12a-12c
By providing a ventilation port for connecting the sunroom SR formed between them and the living room 30 or a ventilation means 31 such as a ventilation fan as shown in FIG. 14, the airflow from the air passage 8 below the handrail 5 flows into the sunroom SR. The air can be made to flow into the living room 30 as indicated by an arrow 40 to ventilate the living room 30.

By doing so, in the winter and the like, cold outdoor air is heat-exchanged when passing through the sunroom SR (for example, warmed by solar heat etc.) and then flows into the room 30 side. Therefore, cold draft (a large amount of cold air flowing into the living room 30) is alleviated. As a result, it is possible to reduce the need for heating or heat exchange in the ventilation port and save energy. Also,
Since it contributes to the maintenance of dryness in the sunroom SR, the life of the building can be extended even if the sunroom SR is provided.

In FIG. 14, the eaves 4, the shutter devices 11a to 11c and the like are omitted for convenience of description.

[0043]

As described above, in the balcony of the first aspect of the invention, the handrail having air permeability is provided on the edge of the balcony floor, and the eaves are provided above the balcony floor. In the balcony, a retractable shutter device that extends along the edge of each side of the eave is attached to the eave, and a light-transmissive and flexible shutter member is wound on the shutter device. Along with that, when the shutter member is pulled out from the shutter device to the vicinity of the balcony floor, locking means for locking the lower end portion of the shutter member is provided,
A sunroom is formed between the shutter members when the shutter members are pulled out from the shutter devices to the vicinity of the balcony floor and locked by the locking means.

According to this structure, the air permeability of the handrail can be secured by winding the shutter member around the shutter device. In addition, the shutter member is pulled out from the shutter device to the vicinity of the balcony floor, and the lower end portion of the shutter member is locked by the locking means, thereby covering the ventilation part of the handrail and between the balcony floor and the eaves. Can be a solarium. Since the pulling of the shutter member from the shutter device and the winding of the shutter member on the winding device can be performed easily and quickly, the balcony can be easily and quickly ventilated in the summer. In winter, the balcony can be easily and quickly turned into a solarium. Moreover, the sunroom thus formed may be the entire balcony or a part of the balcony, so that the size can be freely set.

Further, in the balcony of the second aspect of the present invention, breathable handrails are provided on the edges of the balcony floor, and the eaves have a depth substantially equal to the depth of the balcony floor. In the balcony provided above the balcony floor, a retractable shutter device extending along the edge of each side of the eaves is directly or indirectly attached to each side of the eaves, and A light-transmissive and flexible shutter member is wound around the shutter device, and when the shutter member is pulled out from the shutter device to the vicinity of the balcony floor to cover the ventilation part of the handrail, the shutter member. It is characterized in that a locking means for locking the lower end of the is provided.

According to this structure, the air permeability of the handrail can be secured by winding the shutter member around the shutter device. In addition, the shutter member is pulled out from the shutter device to the vicinity of the balcony floor, and the lower end portion of the shutter member is locked by the locking means, thereby covering the ventilation part of the handrail and between the balcony floor and the eaves. Can be a solarium. Since the pulling of the shutter member from the shutter device and the winding of the shutter member on the winding device can be performed easily and quickly, the balcony can be easily and quickly ventilated in the summer. In winter, the balcony can be easily and quickly turned into a solarium. Moreover, since the entire balcony can be used as a solarium, a large space can be secured in the solarium.

Further, the balcony of the invention of claim 3 is the balcony according to claim 1 or 2, wherein an eaves supporting portion for supporting the eaves is provided at a corner portion of the balcony floor, and the eaves supporting portion is provided. Is provided with a guide portion extending from the balcony floor to the retractable shutter device, and a side edge of the shutter member is engaged with the guide portion so as to be vertically movable.

According to this structure, since the guide portion is provided on the eave support portion that is provided in advance to support the eaves, it is not necessary to separately provide a member for attaching the guide portion.

Further, in the balcony of the invention of claim 4, in the balcony of claim 1 or 2, the shutter member is pulled out from each of the shutter devices to the vicinity of the balcony floor to cover the ventilation part of the handrail. Sometimes, a balcony is provided with a connecting means for connecting the side edges of the adjacent shutter members.

According to this structure, the balcony can be easily and quickly used as a solarium without a guide section or the like.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a balcony according to the present invention.

FIG. 2 is a partial cross-sectional view of the handrail of the balcony of FIG.

3 is a vertical cross-sectional view of the balcony of FIG.

4A is a cross-sectional view showing the relationship between the shutter member, the support and the outer wall of FIG. 1, and FIG. 4B is a cross-sectional view showing a modified example of the end shape of the guide groove and the edge shape retaining member.

5A is an explanatory view when the shutter member of FIG. 1 is pulled out to the vicinity of a balcony floor, and FIG. 5B is a front view of the knob of FIG.

FIG. 6 is a plan view of the balcony viewed from above with the eaves shown in FIG. 1 removed.

FIG. 7 is a perspective view showing another example of the balcony according to the present invention.

FIG. 8 is a cross-sectional view showing an example of connection of side portions of adjacent shutter members shown in FIG.

9 is a cross-sectional view showing another example of connection of the side portions of the adjacent shutter members shown in FIG.

FIG. 10 is a schematic explanatory view showing another example of attachment of the shutter device shown in FIG.

FIG. 11 is a schematic explanatory view showing still another mounting example of the shutter device shown in FIG.

FIG. 12 is a schematic explanatory view showing still another mounting example of the shutter device shown in FIG. 1.

FIG. 13 is an explanatory diagram of a sunroom formed by the shutter members shown in FIGS. 10 to 12.

FIG. 14 is a schematic explanatory view of a ventilation structure in a configuration in which the heat insulating material shown in FIG. 5 is omitted.

[Explanation of symbols]

1 ... Outer wall (eave support part) 2 ... balcony 3 ... Balcony floor 5 ... handrail 4 ... eaves 10 ... Support (supporting portion for eaves) 11a-11c ... Shutter device 12a-12c ... Shutter member 15a to 15c ... Locking hook (locking means) 17, 18a ... Guide groove (guide portion) 20 ... Velcro (coupling means) 21 ... String (coupling means)

Claims (4)

[Claims] 1. A balcony in which a handrail having air permeability is provided on an edge of a balcony floor and an eave is provided above the balcony floor, and the handrail is provided along an edge of each side of the eave. A retractable shutter device is attached to the eaves, and a light-transmissive and flexible shutter member is wound around the shutter device, and the shutter member is removed from the shutter device near the balcony floor. Locking means is provided for locking the lower end of the shutter member when pulled out, and each shutter member is pulled out from each shutter device to the vicinity of the balcony floor and locked by the locking means. At times, a balcony characterized in that a sunroom is formed between the shutter members. 2. A balcony provided with a breathable handrail on the edge of the balcony floor, and an eave having a depth substantially the same as the depth of the balcony floor provided above the balcony floor. , A retractable shutter device extending along the edge of each side of the eaves is directly or indirectly attached to each side of the eaves, and is transparent to the shutter device and flexible. While the shutter member is wound, when the shutter member is pulled out from the shutter device to the vicinity of the balcony floor to cover the ventilation part of the handrail,
A balcony characterized in that locking means for locking the lower end of the shutter member is provided. 3. The balcony according to claim 1 or 2, wherein an eaves support portion for supporting the eaves is provided at a corner portion of the balcony floor, and the eaves support portion is wound from the balcony floor. A guide portion extending to the shutter device is provided, and a side edge of the shutter member is vertically movably engaged with the guide portion. 4. The balcony according to claim 1 or 2, wherein when the shutter member is pulled out from each of the shutter devices to the vicinity of the balcony floor to cover the ventilation part of the handrail, the side of the adjacent shutter member. A balcony characterized in that it is provided with a joining means for joining the edges together.