JP2001140337A - Service entrance structure and service entrance step member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a service entrance structure and a service entrance step member, ensuring ventilation and showing a good appearance quality without impairing storage performance. SOLUTION: This service entrance structure comprises this service entrance step member 13 having a shading portion 11 protruded at the upper edge of a service entrance opening 2 of a building 1 and a step face portion 14 arranged in front the outside the opening and located between a ground surface 12 and the opening lower edge and a fence member 24 having storage shelf portions 26, 26 formed at the service entrance side, spaced a given distance form the outside edge of the service entrance step member 13 and supported by a column 25 erected on the grand surface 12, and also having a roof portion 31 overlapped with the shading portion 11 at a preset length in vertical, provided at the at upper edge of the column 25 in an overhung manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a service port structure and a service port step member suitable for use in a service port opening having a narrow gap between adjacent ground boundaries.

[0002]

2. Description of the Related Art As a conventional open-door step member, for example, a closed-type step housing as described in JP-A-9-250171 shown in FIGS.

[0003] In such a structure, in front of a door opening 3 which can be opened and closed at the periphery of a door opening 2 of a building 1, there is a storage provided with a step portion 5 which is one step lower than the upper surface portion 4. A step member 6 is arranged.

As shown in FIG. 14, the step member with storage 6 has a sealed storage box 7 formed integrally with an outer frame 8 in FRP resin.

At the upper part of the closed storage box 7, two flat cover plates 9, 10 made of FRP resin constituting the upper surface part 4 are rotatably supported by left and right side edges, respectively. Thereby, it can be opened and closed.

In the conventional open-door step member configured as described above, as shown in FIG.
However, in the closed state, the door 3 can be opened outward. For this reason, the user can freely enter and exit through the access opening 2 using the upper surface portion 4 and the step portion 5.

[0007] Further, as shown in FIG.
When the box 10 is opened, the items stored in the closed storage box 7 can be taken in and out.

In addition, since the closed storage box 7 is integrally formed with the outer frame 8, an increase in manufacturing costs is suppressed.

[0009]

However, in such a conventional step member 6 with storage, the cover 9, 9
It has been difficult to improve the waterproofness of the upper surface portion 4 such as the mating portion 10 because high dimensional accuracy is required.

For this reason, it is conceivable to cover the upper surface 4 with a single plate-like lid having a relatively large area, but in this case, even if the lid upper surface is slightly warped, rainwater tends to accumulate.

In particular, if such a step member 6 with storage is used in the open mouth opening 2 which is often provided on the north side of the building 1, moisture easily accumulates and causes generation of mold and the like. There was also a risk of damaging the side.

Further, since the access door 3 is exposed, it is difficult to say that the appearance quality is good.

Accordingly, an object of the present invention is to solve the above-mentioned problems, to provide a free-mouth structure and a free-hand step member which have good ventilation quality without impairing the storage ability and which have good appearance quality. It is intended to be.

[0014]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, an eaves portion is protruded from an upper edge of a door opening of a building, and is disposed in front of the outside of the opening. An access port step member having a step surface portion between the ground surface and the lower edge of the opening; and a column standing at a predetermined distance from an outer edge of the access port step member and standing upright from the ground surface. A storage shelf supported by the door opening side, and the upper edge of the column, the eaves, and a fence member provided with a roof portion that overlaps a predetermined length in the vertical direction in a cantilever manner. It is characterized by an open mouth structure having

According to the first aspect of the present invention, the eaves protruding from the upper edge of the opening of the building and the upper edge of the support of the fence member are cantilevered. The provided roof portion overlaps a predetermined length.

[0016] For this reason, the storage shelf is formed on the side of the support opening, which is a position where daily necessities can be stored and taken out, from the side of the access opening. Is good.

Further, the free-hand step member and the fence member are individually conveyed to a construction site, and can be mounted by a substantially dry-type simple construction. For this reason, the construction time can be shortened and the increase in cost can be suppressed.

Moreover, since the opening of the access opening is hidden by the fence member, the opening is not directly seen from the outdoor side and the appearance quality is good.

According to the second aspect of the present invention, the basket member having an open upper side is housed in the access port step member, and the step surface portion is provided with the access port opening from the access port opening. When viewed, a girder bar-like member along the front and rear side edges is provided on one of the left and right side edges via a rotating portion, and has a predetermined width in a direction substantially orthogonal to the extending direction of the girder bar-like member. 2. The open mouth structure according to claim 1, further comprising a lid member in which a plurality of the plate-like members are arranged in parallel by being bridged.

According to the second aspect of the present invention, a basket in the form of a net is stored in the open-port step member, and the upper part is opened and closed by the lid member.

For this reason, when the lid member is closed, the plurality of plate members arranged in parallel are used as step surfaces, and when the lid member is opened, the basket is used as a part of the storage portion. Can be used. For this reason, the storage amount including daily necessities used outdoors can be increased, and there is no possibility that storage performance is impaired.

Further, since the lid member has a step surface portion formed by arranging a plurality of plate members in parallel, the rainwater on the step portion flows down from between the plate members to reduce drainage. Good. Moreover, since the basket has a net cage shape, the basket has good air permeability, and there is no danger that moisture will accumulate even before the opening of the access opening which is often provided on the north side. Furthermore, since the construction of the step member is almost completed by installation even in a small land, the workability is good.
Accordingly, damage to the building can be suppressed without impairing the variety of the planning of the building.

According to the third aspect,
3. The open mouth structure according to claim 2, wherein the plate-shaped member is semi-embedded in a linear shape with an elastomer on the upper surface of the olefin-based resin molded plate containing wood flour, and is subjected to anti-slip processing.

According to the third aspect of the present invention, since the non-slip elastomer is linearly semi-buried on the upper surface of the plate-like member constituting the lid member and subjected to the non-slip processing, The risk of slippage is reduced even when the user is on the step surface from the mouth opening. Therefore, even if the daily necessities are stored in the storage shelf portion, it is directly accessible and the convenience of use is good.

According to a fourth aspect of the present invention, there is provided the open-closed door structure according to the second or third aspect, wherein an opening and closing assist mechanism is provided in the rotating portion for rotatingly supporting the lid member.

According to the fourth aspect of the present invention, since the opening / closing assisting mechanism is provided in the rotating portion for rotatingly supporting the lid member, the lid member can be easily opened and closed. Can be done.

Further, according to the fifth aspect of the present invention, the fence member is provided on its outer surface with a mounting tool on which a punching board or a net-like plate member can be attached and detached. It is characterized by its structure.

According to the fifth aspect of the present invention, a punching board or a net-like plate member is attached to and detached from the fence member by the attachment. For this reason, the degree of freedom in design is further increased by replacing the punching board or the mesh plate member according to the purpose of use.

Further, according to the present invention, a gutter member extends in a horizontal direction at a position above an upper end of the fence member, and an upper edge of the column and the gutter member are provided. 6. A door opening structure according to claim 1, wherein a support fitting protruding in the direction of the building and having a support surface for supporting the roof is provided between the member and the member.

According to the sixth aspect of the present invention, since the roof and the gutter member are supported by the support metal, a separate support member for supporting the gutter member becomes unnecessary, and the number of parts is reduced. The reduction can suppress an increase in manufacturing cost.

According to the seventh aspect of the present invention, an eaves portion is protruded from the upper edge of the opening of the access opening of the building, and is disposed in front of the outer side of the opening to form a ground surface and the lower edge of the opening. A step member having a step surface portion, which stores a basket in the form of a basket having an open upper side, wherein the step surface portion has both front and rear sides as viewed from the opening of the service opening. A girder bar-like member along the edge is provided on one of the left and right side edges via a rotating portion, and a plate-like member having a predetermined width in a direction substantially orthogonal to the extending direction of the girder bar-like member,
It is characterized by an open-door step member having a plurality of cover members arranged in parallel.

According to the seventh aspect of the present invention, the storage basket is improved by the net-shaped basket having an open upper portion, the air permeability is ensured, and the plurality of plate-like members are provided. By opening and closing the cover member with good drainage that is laid over and juxtaposed, the upper part of the basket is used as a step surface portion, and rainwater is applied to the upper surface portion like a conventional single-plate cover plate. There is no danger of stagnation.

Further, as compared with the conventional wet-type step, the time required for curing and the like can be reduced, and an increase in labor and cost used for installation can be suppressed.

[0034]

First Embodiment A first embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 to 12 show a first embodiment of the present invention.
1 shows the structure of the access port and the access step member. Parts that are the same or equivalent to those in the conventional example will be described with the same reference numerals.

First, the structure will be described. In the access port structure of the first embodiment, an eaves section 11 is protruded from the upper edge of the access port opening 2 of the building 1.

At the periphery of the access opening 2, an access door 3 is provided.
Is provided so as to be openable and closable. A front door step member 13 is provided in front of the front door 3.

The access step member 13 is disposed in front of the outside of the opening, and has the ground surface 12 and the lower edge 2 of the opening.
Step surface portions 14a and 14b are provided between the step surfaces 14a and 14b.

The upper portion of the frame 1 has a substantially rectangular shape.
5a, and 4 of this frame 15a.
From the corner, the four leg members 16, 16 are integrally extended downward to form a pedestal member 15.

In a space formed between these leg members 16, 16, a basket 17 having a net cage shape opened upward is accommodated. In addition, of the leg members 16, 16, on the left side from the outside toward the access opening 2,
A support frame 18 for supporting one end of the step surface portion 14a is provided.

The pedestal member 15 has a step surface portion 14
The cover member 19 constituting b is provided rotatably.
The lid member 19 is such that, when viewed from the opening 2, the girder bar-shaped members 20, 20 along the front and rear side edges are connected to the left side edge of the frame 15 a via a hinge as a rotating part. Supported. And these girder bar-shaped members 20, 20
Of a predetermined width in a direction substantially perpendicular to the direction in which
Are arranged in parallel with a predetermined gap being formed.

As shown in FIG. 5, the plate-like member 22
When the olefin-based resin material 22a containing wood powder is formed by extrusion molding, a thermoplastic elastomer 22b...

A hinge 2 for pivotally supporting the lid member 16 is provided between the frame 15 and the lid member 19.
An air damper 23 as an opening / closing assist mechanism is provided near 1.

Then, the step member 13 of these open doors is used.
A fence member 24 is provided at a predetermined distance from the outer edge of the fence. In the fence member 24, storage shelves 26, 26 whose both side edges are supported by columns 25, 25 erected from the ground surface 12 are formed on the side of the access opening.

In the first embodiment, as shown in FIG. 3, the net board 27 is placed on the left side of the access opening 2 from the outside in order to protect the protruding corners of the storage shelves 26, 26. Is provided. The net board 27 is provided with storage pockets 28, 28.

As shown in FIG. 2, a punching board 28 for covering the back side of the fence member 24 and a wide net board 29 as a mesh plate member are provided between the columns 25, 25.
It is attached so as to be attachable / detachable by the attachments 30. As shown in FIGS. 10 to 12, the mounting member 30 includes a supporting piece 30 b fixed to a side surface of the support 25 by a bolt member 30 a, and a punching board of the fence member 24 between the supporting piece 30 b and the supporting piece 30 b. 28 or a holding member 30c for holding the wide net board 29, and a bolt member 30 mainly inserted from the building 1 side.
It is configured to be detachable by screwing d.

A cantilevered roof portion 31 is provided at the upper edge of the columns 25, 25 and extends under the eaves portion 11 so as to overlap a predetermined length in the vertical direction. Polycarbonate resin boards 32 and 33 are attached to a part of the back side and an upper surface of the roof portion 31.

Further, the upper end 24 of the fence member 24
At a position above “a”, a gutter member 34 extends in the horizontal direction. As shown in FIG. 6, a support surface 36 projecting in the direction of the building 1 and supporting the roof portion 31 is provided between the upper edge 25 a of the column 25 and the gutter member 34. Is provided. The support member 35 is fixed to an upper end surface of the upper edge 25a by a bolt member 40.

The one building side edge 34a of the gutter member 34 is sandwiched between the roof member mounting side edge 31a and the support surface 36 when fastened by the bolt members 37,37. , The outer side wall 34b,
5 is fixed to the vertical wall portion 38 with a bolt member 39, and the groove portion 34c is formed.
Are positioned above the upper edge 25a of the support 25.

The upper end of a vertical gutter 34d extending in the vertical direction is connected to one left and right edge of the gutter member 34.

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

In the first embodiment, as shown in FIG. 1, the space between the opening 2 on the north side of the building 1 and the fence 41 provided at the boundary of the adjacent land is narrow, and the space for the opening is narrow. The mouth step member 13 and the fence member 24 are carried in,
From the outer side edge of the access step member 13,
Distances a to 5 and 25 are arranged at predetermined intervals so as not to interfere with the storage shelves 26 and 26 when walking on the step surface portion 14. The leg members 16, 16
The lower ends of the columns 25 and 25 are buried to a predetermined depth b together with a base portion 25a formed by solidifying concrete or the like in the ground, and the access port step member 13 and the fence member 24 are connected to the ground surface 12a. Fixed to

At this time, the fence member 2 is placed below the eaves 11 projecting from the upper edge of the opening 2 of the building 1.
The roof portions 31 provided in a cantilever manner on the upper edges of the four columns 25 are overlapped by a predetermined length so as to penetrate from below.

As described above, since the roof portion 31 of the fence member 24 extends under the eaves portion 11 from below, even if the eaves portion 11 and the roof portion 31 are not connected,
The rainwater flowing down from the eaves section 11 to the roof section 31 is drained by the gutter member 34.
, The water is guided into the downspout 34d and drained onto the surface of the ground surface 12, so that simple rain can be performed.

Further, since a plurality of plate members 22 are arranged side by side on the cover member 19 to form a step surface portion, the flat cover plates 9 and 10 made of a conventional FRP resin are used. As described above, there is no possibility that the rainwater stays on the upper surface due to a slight bending, and the rainwater on the step surface portion 14 flows down from between the plate-like members 22, 22, and the drainage property is good. In addition, since the basket 17 has a net cage shape, the air permeability is good, and even in front of the open mouth 2, which is often provided on the north side, moisture does not accumulate and generation of mold and the like is suppressed. Also, the risk of damaging the building 1 side is reduced.

As described above, since the drainage property on the step surface portion 14 is good, the step surface portion 14 is directly descended from the direction of the access port, and the storage pillars 25, 25 are formed on the side of the access port. Daily necessities can be stored and taken out from the shelves 26, 26, and convenience in use is good.

Further, since the construction of the access port step member 13 is substantially completed by installation even in a small land, the workability is good. Therefore, the configuration of the underfloor ventilation path is not restricted and the variety of planning of the building 1 is not impaired.

Further, the open door step member 13 and the fence member 24 are individually transported to the construction site,
It can be installed with a simple dry construction. For this reason, the construction time can be shortened and the increase in cost can be suppressed.

Further, since the access opening 2 is hidden by the fence member 24, it is not directly seen from the outdoor side and the appearance quality is good.

Further, in the first embodiment, the basket 17 in the form of a net basket is stored in the step member 13, and the upper part thereof is opened and closed by the lid member 19.

For this reason, when the lid member 19 is closed, the plurality of plate members arranged in parallel are used as step surfaces, and when the lid member 19 is opened, the basket 17 is placed in the storage portion. Can be used as a part. For this reason, the storage amount including daily necessities used outdoors can be increased, and there is no possibility that storage performance is impaired.

As shown in FIG. 5, the plate-like members 22, 22 constituting the lid member 19 are semi-embedded in a linear shape on the upper surface of the olefin resin molded plate containing wood flour, and slide. Stop processing is given. For this reason,
Even if the user is on the step surface portion 14 from the service opening 2, the risk of slipping is reduced. Therefore, even if the daily necessities are stored in the storage shelves 26, 26, they are directly accessible, and the convenience in use is good.

Since the hinge 21 for pivotally supporting the lid member 19 is provided with an air damper 23,
The lid member 19 can be easily opened and closed with a small force. For this reason, for example, even if the plate-shaped member 22 has a relatively large thickness, the opening / closing operation can be performed without causing an increase in weight, and in this respect, the appearance quality can be improved.

Further, as shown in FIG.
At 0, a punching board 28 or a wide net board 29 is attached to and detached from the fence member 24.
Therefore, according to the purpose of use, the punching board 28
Alternatively, by replacing the wide net board 29, the degree of freedom of design is further increased, and the design can be harmonized with the design of the building 1 side,
Further, the appearance quality can be improved.

Further, since the roof portion 31 and the gutter member 34 are supported by the pair of support members 35, 35, a support member for separately supporting the gutter member 34 becomes unnecessary, and the number of parts can be reduced. Thereby, an increase in manufacturing cost can be suppressed.

Further, in the first embodiment, since the groove 34c of the gutter member 34 is located above the upper edge 25a of the column 25, the gutter member 34 is
Further, the appearance quality is good without being protruded from the outside of 5, 25.

As described above, in the open mouth step member according to the first embodiment, the net basket-like basket 17 having an open upper portion improves the storage property, ensures the air permeability, and provides a plurality of plates. By opening and closing the lid member 19 with good drainage property, which is provided with the cross-shaped members 22... There is no danger that rainwater stays on the upper surface as in 9, 10 and the like.

Further, as compared with the conventional wet-type open-door step, the time for curing and the like can be shortened, and an increase in labor and cost used for installation can be suppressed.

[0069]

[Modification 1] FIG. 7 shows a service port step member 113 of Modification 1 of Embodiment 1 of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

The step member 113 of the access port of the first modification.
Then, on the left and right sides of 14b of the relatively high step surface,
A relatively low pair of left and right step surfaces 14a, 14a is provided.

The other constructions and functions and effects are substantially the same as those of the first embodiment, so that the description will be omitted.

[0072]

[Modification 2] FIG. 8 shows a fence member 124 of Modification 2 of Embodiment 1 of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the fence member 124 of the second modification,
On the upper side between the columns 25, 25, the wide net member 29 is provided.
On the lower side, the punching boards 28 are respectively mounted by the mounting tools 30.

The other constructions and functions and effects are substantially the same as those of the first embodiment, so that the description will be omitted.

[0075]

[Modification 3] FIG. 9 shows a fence member 224 of Modification 3 of Embodiment 1 of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the fence member 224 of the third modification,
A pair of upper and lower wide net members 2 are provided between the posts 25, 25.
9, 29 are mounted.

The other configuration, operation, and effect are substantially the same as those in the first embodiment, and the description thereof is omitted.

Although the first embodiment of the present invention has been described in detail with reference to the drawings, the specific structure is not limited to the first embodiment, and there are design changes and the like within a range not departing from the gist of the present invention. Even this is included in the present invention.

For example, in the first embodiment, the air damper 23 is used as the opening / closing assist mechanism. However, the invention is not limited to this. For example, a multi-stage ratchet mechanism or the like may be used as long as it assists opening / closing. Such a mechanism may be used.

[0080]

As described above, according to the first aspect of the present invention, the eaves protruding from the upper edge of the access opening of the building and the upper edge of the pillar of the fence member are provided. A cantilevered roof portion overlaps a predetermined length.

For this reason, the storage shelf is formed on the side of the support opening at which the daily necessities can be stored and taken out from the direction of the access opening. Is good.

Further, the open door step member and the fence member are individually transported to the construction site and can be mounted by a substantially dry-type simple construction. For this reason, the construction time can be shortened and the increase in cost can be suppressed.

Further, since the opening of the access opening is hidden by the fence member, it is not directly seen from the outdoor side, and the appearance quality is good.

According to the second aspect of the present invention, a basket in the form of a net cage is housed in the open-port step member, and the upper part is opened and closed by the lid member.

For this reason, when the lid member is closed, the plurality of plate members arranged in parallel are used as step portions, and when the lid member is opened, the basket is used as a part of the storage portion. Can be used. For this reason, the storage amount including daily necessities used outdoors can be increased, and there is no possibility that storage performance is impaired.

[0086] Further, since the lid member is a step portion constituted by arranging a plurality of plate members in parallel, the rainwater on the step portion flows down from between the plate members to reduce drainage. Good. Moreover, since the basket has a net cage shape, the basket has good air permeability, and there is no danger that moisture will accumulate even before the opening of the access opening which is often provided on the north side. Furthermore, since the construction of the step member is almost completed by installation even in a small land, the workability is good.
Accordingly, damage to the building can be suppressed without impairing the variety of the planning of the building.

[0087] According to the third aspect,
Since the non-slip elastomer is linearly semi-buried on the upper surface of the plate-like member constituting the lid member and subjected to the non-slip processing, the risk of slipping is reduced even if the user is on the step surface from the open mouth. Therefore, even if the daily necessities are stored in the storage shelf portion, it is directly accessible and the convenience of use is good.

According to the fourth aspect of the present invention, since the opening / closing assist mechanism is provided in the rotating portion for rotatingly supporting the lid member, the lid member can be easily opened and closed. .

Further, according to the fifth aspect, a punching board or a net-like plate member is attached to and detached from the fence member by the attachment. For this reason, the degree of freedom in design is further increased by replacing the punching board or the mesh plate member according to the purpose of use.

Further, since the roof and the gutter member are supported by the support metal, the support member for separately supporting the gutter member becomes unnecessary.
By reducing the number of parts, an increase in manufacturing cost can be suppressed.

According to the seventh aspect of the present invention, the net basket-like basket having an open upper portion enhances the storage capacity, ensures air permeability, and allows a plurality of plate-like members to be bridged. The upper part of the basket is used as a step part by opening and closing the lid member having a good drainage property, which is juxtaposed, so that rainwater stays on the upper surface part like a conventional single-plate lid plate. There is no fear.

Further, as compared with the conventional wet-type step, a practically useful effect that the time for curing and the like can be reduced and the increase in labor and cost for installation can be suppressed can be exhibited.

[Brief description of the drawings]

FIG. 1 is a front view of a fence member and a step member provided in front of a service entrance on the north side of a building in a service entrance structure and a service entrance step member according to the first embodiment of the present invention.

FIG. 2 is a side view of a fence member and a step member provided in front of a service entrance on the north side of a building in a service entrance structure and a service entrance step member according to the first embodiment.

FIG. 3 is a perspective view of a main part of the access port structure and the access port step member according to the first embodiment.

FIG. 4 is a perspective view for explaining the overall configuration of the free-hand step member according to the first embodiment.

FIG. 5 is a perspective view illustrating the configuration of a plate-like member used for the free-hand step member according to the first embodiment.

FIG. 6 is a cross-sectional view illustrating a configuration of a gutter portion of the fence member according to the first embodiment, taken along a line BB in FIG.

FIG. 7 is a perspective view for explaining the overall configuration of a free-hand step member according to a first modification.

FIG. 8 is a perspective view illustrating an overall configuration of a fence member according to a second modification.

FIG. 9 is a perspective view illustrating an overall configuration of a fence member according to a third modification.

FIG. 10 is a diagram illustrating a configuration of the mounting tool according to the first embodiment.
It is sectional drawing in the position along middle AA line.

FIG. 11 is an inner side view of a support piece of the fixture.

FIG. 12 is a front view of a fixture.

FIG. 13 is a perspective view of a conventional step member with storage.

FIG. 14 is a perspective view showing a conventional example of a step member with storage, in which a cover plate is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 2 Open door 3 Open door 11 Eave part 12 Ground surface 13 Open door step member 14 Step surface part 15 Base member 15a Frame frame 20 Girder bar member 21 Hinge (rotation part) 22 ... Plate member 22b Elastomer 23 Air damper (opening / closing assist mechanism) 24, 124, 224 Fence member 25, 25 Prop 26, 26 Storage shelf 28 Punching board 29 Wide net board (net-like plate member) 30 ... Fixture 31 Roof 34 Gutter member 35 Support bracket 36 Support surface 41 fence (adjacent land boundary)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Yamada 731-1 Ryuocho, Gamo-gun, Shiga Prefecture Sekisui Jushi Co., Ltd. (72) Inventor Masahiro Koide 6-3-1 Nishishinjuku, Shinjuku-ku, Tokyo Sekisui Exterior Inside the corporation

Claims (7)

[Claims] An eaves portion is protruded from an upper edge of an opening of an opening of a building, and a step surface is disposed at a front surface outside the opening and has a step surface portion between a ground surface and a lower edge of the opening. A step member, and a storage shelf portion, which is spaced from the outer edge of the access port step member by a predetermined distance and is supported by a support standing upright from the ground surface, is formed on the access port side, and an upper edge of the support support; And a fence member having a cantilevered roof portion that overlaps a predetermined length. 2. A net basket-like basket having an open upper side is stored in the service opening step member, and the step surface portion is along the front and rear side edges as viewed from the service opening. A girder bar-shaped member is provided on one of the left and right side edges via a rotating portion, and a plurality of plate-shaped members having a predetermined width are laid across a direction substantially perpendicular to the extending direction of the girder bar-shaped member. 2. The access opening structure according to claim 1, further comprising a lid member arranged side by side. 3. The sliding door according to claim 2, wherein said plate-shaped member is semi-embedded in a linear shape with an elastomer on an upper surface of an olefin resin molded plate containing wood flour and subjected to a non-slip processing. Construction. 4. The open mouth structure according to claim 2, wherein an opening / closing assisting mechanism is provided at a turning portion for turning and supporting the lid member. 5. The access opening structure according to claim 1, wherein a mounting tool capable of attaching and detaching a punching board or a net-like plate member is provided on an outer surface of the fence member. 6. A gutter member extending in a horizontal direction above an upper end of the fence member, and the building is provided between an upper edge of the column and the gutter member. A support fitting protruding in the direction and having a support surface for supporting the roof portion is provided.
The described access structure. 7. An open door having an eave portion protruding from an upper edge of an open door of a building, and having a step surface portion disposed between the ground surface and the lower edge of the open door, the eave being disposed in front of the open door. A step member for storing a net basket-like basket having an upper side opened, and a girder bar-like member along the front and rear side edges, as viewed from the opening of the access opening, is provided on the step surface portion. A lid member is provided so as to be supported on one of the side edges via a rotating portion, and a plurality of plate-like members having a predetermined width are arranged in parallel in a direction substantially perpendicular to the extending direction of the girder bar-like members. A step member for a free mouth.