JP5303233B2 - Underfloor storage structure - Google Patents

Description

  The present invention relates to an underfloor storage structure, and more particularly, to an underfloor storage structure in which a prefabricated storage unit is installed in a base pit formed on a solid foundation.

For example, in a building such as a residential building, a simple underfloor storage using an underfloor space is often provided. In addition, in order to use the underfloor space more effectively, the underfloor ground is dug down, and for example, an underfloor storage that can be entered by a resident is embedded in the underfloor ground. The thing is also developed (for example, refer patent document 1). In addition, when an underfloor storage of a considerable size is provided in the underfloor space, an underfloor storage can be installed efficiently by burying a storage unit previously manufactured in a factory or the like in the ground below the floor. Has also been developed (see, for example, Patent Document 2).
JP 2001-303761 A JP 2007-56609 A

  However, for example, when installing an underfloor storage of a size that can be accessed by a resident in the underfloor part by digging the underground ground and burying it in the ground, A temperature difference is likely to occur with the surrounding ground, and there is a possibility that dew condensation, mold, etc. may occur inside the underfloor storage and adversely affect the stored items.

  For this reason, dehumidifiers and dryers are installed inside the underfloor storage, and devices have been devised to improve the ventilation of the underfloor storage (see, for example, Patent Document 1), but prevent the occurrence of condensation and mold. Not enough to

  The present invention has been made paying attention to such a conventional problem, and an underfloor storage of a size that can be entered by a resident in the underfloor portion of a building, causing condensation, mold, etc. It aims at providing the underfloor storage structure which can be installed efficiently in the state which suppressed effectively.

The present invention digs a part of the base portion of the solid foundation, and is installed in the base pit portion in a state of being separated from the base pit portion formed continuously with the solid foundation and the peripheral wall of the base pit portion. From the storage unit provided with a hollow interior of a size that can be entered by a person, wherein the entrance / exit part provided at the upper end part faces the floor opening part that can be opened and closed on the floor part of the building. And the entrance / exit peripheral wall forming the opening peripheral part of the entrance / exit part of the storage unit is disposed at a distance from the floor opening peripheral wall provided extending downward from the opening peripheral part of the floor opening part A gap between the entrance / exit peripheral wall and the floor opening peripheral wall is closed by a flexible airtight member, and the floor opening is covered with a floor lid so as to be opened and closed, Below the floor lid, A heat insulating cover is detachably supported by the floor opening peripheral wall, and the heat insulating cover is supported by a heat insulating outer frame and a support base bonded and fixed along the inner side surface of the floor opening peripheral wall. The airtight member is an airtight tape made of a butyl rubber-based or acrylic rubber-based synthetic resin, and an upper edge portion of the airtight member is attached to the inner surface of the support base. It is attached airtightly, and its lower edge portion is attached airtightly to the inner surface of the upper end of the entrance / exit peripheral wall of the storage unit , and the storage unit is a bottom plate of the base pit portion. The above object is achieved by providing an underfloor storage structure that is supported by a mounting table provided in a section and is installed in a state of being separated from the bottom panel.

In the underfloor storage structure according to the present invention, the floor lid that covers the floor opening so as to be openable / closable is configured such that when the floor opening is closed, the peripheral portion has an airtight packing between the peripheral wall of the floor opening. It is preferable to be in close contact with the peripheral wall of the floor opening in an interposed state.

  Furthermore, in the underfloor storage structure of the present invention, the storage unit is installed in the base pit portion in a state in which the storage unit is prevented from being lifted via an anchor member supported from the bottom plate portion of the base pit portion. It is preferable.

  According to the underfloor storage structure of the present invention, an underfloor storage of a size that allows a resident to enter the underfloor part of a building is efficiently performed in a state in which the occurrence of condensation or mold is effectively suppressed. It can be installed well.

  As shown in FIGS. 1 (a) and 1 (b), the underfloor storage structure according to a preferred embodiment of the present invention allows a resident to enter the floor of a first floor portion of a wooden house building, for example, as a building. It is used to enable the installation of an underfloor storage of a size that can be efficiently installed in a state where the generation of condensation and mold is effectively suppressed using the storage unit 10 manufactured in advance. It is a thing. That is, in this embodiment, the foundation of the building is a solid foundation 11 that covers the foundation ground below the wooden house building and is provided on one side without any gaps, and a part of the base portion 11a of the solid foundation 11 is formed. The base pit portion 12 is formed by digging, and the storage unit 10 is installed in the formed base pit portion 12 in a state described later, so that dew condensation, mold, etc. are generated inside the underfloor storage by the storage unit 10. Can be effectively suppressed.

  And the underfloor storage structure of this embodiment digs down a part of the base part 11a of the solid foundation 11, and the base pit part 12 formed continuously with the solid foundation 11 and the base pit part 12 A storage that is installed in the base pit portion 12 in a state of being separated from the peripheral wall 12a, and the entrance / exit portion 10a provided in the upper end portion faces the floor opening portion 13a provided in the floor portion 13 of the building so as to be opened and closed. A floor opening peripheral wall 15 which is provided with an inlet / outlet peripheral wall 14 formed of the unit 10 and forming an opening peripheral edge of the inlet / outlet portion 10a of the storage unit 10 extending downward from the opening peripheral edge of the floor opening 13a. The interval portion s between the inlet / outlet peripheral wall 14 and the floor opening peripheral wall 15 is closed by a flexible airtight member 16 as shown in FIGS. 2 (a) and 2 (b). It is.

  Moreover, in this embodiment, the floor opening part 13a is covered so that opening and closing is possible by the floor cover 17, and when this floor cover 17 obstruct | occludes the floor opening part 13a, the peripheral part is Fig.2 (a), FIG. As shown in (b), the airtight packing 18 is interposed between the floor opening peripheral wall 15 and the floor opening peripheral wall 15 in close contact therewith.

  Further, in the present embodiment, a heat insulating cover 19 is detachably provided below the floor cover 17 and supported by the floor opening peripheral wall 15.

  Furthermore, in the present embodiment, the storage unit 10 is prevented from being lifted through the anchor member 20 supported from the bottom plate part 12b of the base pit part 12, as shown in FIG. It is installed in the base pit section 12.

  In this embodiment, the solid foundation 11 covers the foundation ground and the rising portion 11b on which the base 21 of the building is placed on the outer peripheral portion of the base portion 11a provided on the entire surface without a gap or the inner portion thereof. It is formed so as to be arranged directly under the outer wall or partition wall. In this embodiment, as shown in FIGS. 1 (a) and 1 (b), for example, a rising portion formed on an outer wall around the kitchen 22 provided on the first floor portion of a wooden house building or a portion directly below the partition wall. The base portion 11a in the region surrounded by 11b is formed by digging downward as a bottom plate portion 12b, and by continuously integrating with the surrounding rising portion 11b to form the peripheral wall 12a, the base pit portion 12 It will be formed in the lower part of the floor 13.

  Accordingly, the base pit portion 12 is surrounded by the peripheral wall 12a below the floor portion 13 of the kitchen 22 and has a planar rectangular shape with a size of about 3500 mm in length and 2100 mm in width, for example, and the bottom plate portion 12b has a solid base 11. By being dug down by about 700 mm, for example, than the base portion 11a, the floor space 13 of the kitchen 22 is provided in a state of holding the underfloor space where the height to the floor portion 13 is, for example, about 1400 mm. Further, in the present embodiment, the base 21 has a ventilation path p between the top end surface and the top end surface of the rising portion 11b of the solid foundation 11 constituting the upper portion of the peripheral wall 12a of the base pit portion 12. By this, the inside of the base pit part 12 is ventilated.

Furthermore, in the present embodiment, the bottom plate portion 12b of the base pit portion 12 is provided with a pair of mounting tables 23 at the center thereof, and the storage unit 10 is supported by these mounting tables 23 so that the storage unit 10 It is stably installed in the base pit portion 12 in a state of being separated from the portion 12b. Furthermore, in the present embodiment, a hook metal 20a constituting the anchor member 20 protrudes upward and is embedded and fixed to the bottom plate portion 12b of the base pit portion 12. One end of the hook metal 20a is engaged with the other end of a tensile wire member 20b made of a wire, a chain, or the like that is engaged with the storage unit 10, thereby exhibiting an anchor function together with the hook metal 20a. Thus, for example, it is possible to effectively prevent the storage unit 10 from being lifted during an earthquake or a submergence.

  The storage unit 10 installed in the base pit portion 12 is a hollow unit product made of, for example, fiber reinforced plastic (FRP) or the like, and is desired to fit in the under floor space below the kitchen 22 formed by the base pit portion 12. It is manufactured in advance in a factory or the like so as to have the size and shape of The storage unit 10 has a hollow interior that is large enough for a person to enter, and a ladder 24 and an arrangement shelf 25 for ascending / descending from the floor 13 of the kitchen 22 are provided inside the storage unit 10 as necessary. It is provided as appropriate. In addition, an opening / closing portion 10a having a substantially rectangular shape having a size of about 500 mm in length and about 1100 mm in width is formed at the upper end portion of the storage unit 10 by being bordered by the entrance / exit peripheral wall 14. The storage unit 10 is installed in the base pit portion 12 in a state where the entrance / exit portion 10a faces a floor opening portion 13a provided on the floor portion 13 of the kitchen 22 so as to be opened and closed.

  The floor opening 13a formed in the floor 13 of the kitchen 22 is a rectangle having a size of approximately 600 mm in length and 1200 mm in width, which is slightly larger than the entrance / exit portion 10 a of the storage unit 10 in the substantially central portion of the kitchen 22. It is formed to have a shape. The floor opening 13a is covered with a floor lid 17 attached via various known opening / closing mechanisms so as to be openable and closable, and extends downward from the opening peripheral edge of the floor opening 13a. The peripheral wall 15 is provided in a state supported by the floor girders 26a and 26b.

  In the present embodiment, the floor opening peripheral wall 15 is made of a strip plate member having a vertically long rectangular cross-sectional shape having a thickness of about 24 mm and a height of about 185 mm, for example, surrounding the floor opening 13a, and surrounding floor girders 26a, A fixed nail 27 is firmly attached to 26b. Further, along the inner side surface of the floor opening peripheral wall 15, a heat insulating outer frame 19 a and a support base 19 b that support the heat insulating lid 19 are joined and fixed, supported by the heat insulating outer frame 19 a and the support base 19 b, A heat insulating lid 19 is detachably attached to the lower side of the floor lid 17.

  The heat insulation lid 19 is a lid member made of, for example, polystyrene foam as a material having excellent heat insulation performance, and is provided so as to be able to close the inner space of the floor opening peripheral wall 15 through various known attachment / detachment mechanisms. Since the heat insulating cover 19 is provided below the floor cover 17, the indoor side is insulated and the indoor temperature is not transmitted to the storage unit 10 side. The temperature is kept constant, and it is possible to effectively prevent dew condensation from occurring inside and outside the storage unit 10.

  And in this embodiment, as shown to Fig.2 (a), (b), the space | interval part s of the lower end part of the floor opening part surrounding wall 15 and the entrance-and-exit peripheral wall 14 of the storage unit 10 is obstruct | occluded. An airtight member 16 having flexibility is attached. For the airtight member 16, an airtight tape made of, for example, a butyl rubber-based or acrylic rubber-based synthetic resin or the like can be preferably used as a material having excellent airtight performance. The airtight member 16 is airtightly joined to the inner side surface of the support base 19b attached to the lower end portion of the floor opening peripheral wall 15 so as to be sandwiched between the airtight cover 28 and the lower portion thereof. The side edge portion is attached to the inner surface of the upper end portion of the entrance / exit peripheral wall 14 of the storage unit 10 by, for example, airtight joining using an adhesive or the like. Thereby, the airtight member 16 can absorb the relative displacement between the lower end of the floor opening peripheral wall 15 and the inlet / outlet peripheral wall 14 of the storage unit 10 by its flexibility, and the interval portion s between them can be absorbed. Will be airtightly closed.

  Further, in the present embodiment, the floor lid 17 that covers the floor opening 13a so as to be openable and closable is configured such that, when the floor opening 13a is closed, the peripheral edge thereof is the upper end of the floor opening peripheral wall 15 with the airtight packing 18 interposed. It comes to adhere to. That is, in the present embodiment, the opening frame hardware 29 is attached to the opening peripheral edge of the floor opening 13a across the opening inner peripheral end surface of the floor 13 and the upper end surface of the floor opening peripheral wall 15, A lid frame hardware 30 is attached to the peripheral edge of the floor lid 17 so as to straddle the outer peripheral end surface and the lower surface edge of the floor lid 17. When the floor opening 13a is closed, the airtight packing 18 is pressed between the opening frame metal 29 of the floor opening 13a and the lid frame metal 30 of the floor lid 17, thereby pressing the floor lid 17 The peripheral edge portion is firmly and airtightly attached to the upper end portion of the peripheral wall 15 of the floor opening.

  Here, the airtight packing 18 is made of, for example, an elastomer foam, a polyethylene foam, an ethylene / propylene foam, or the like as an elastic material. In the present embodiment, the airtight packing 18 is formed to have a circular cross section having a diameter of about 8 mm, for example. ing. The hermetic packing 18 is mounted in a positioned state in a fitting recess 31 formed along a portion of the opening frame metal 29 that is joined to the upper end surface of the floor opening peripheral wall 15, and is mounted on the floor opening 13 a. At the time of closing, it is pressed from above by the pressing surface of the lid frame hardware 30. As a result, the peripheral edge of the floor lid 17 and the upper end of the peripheral wall 15 of the floor opening are in close contact with each other through the opening frame hardware 29 and the lid frame hardware 30 and the airtight packing 18 in a strong and airtight manner. . In the present embodiment, the airtight packing 18a is also provided between the inner circumferential end surface of the floor opening 13a and the opening frame metal 29 and between the lower surface edge of the floor lid 17 and the lid frame metal 30. In addition to being provided between them, an airtight packing 18b is also provided between the heat insulating lid 19 and the heat insulating outer frame 19a so as to be held between them.

  And according to the underfloor storage structure of this embodiment which has the above-mentioned structure, generation | occurrence | production of a dew condensation, mold | fungi, etc. in the underfloor storage of the magnitude | size which a resident can enter in the underfloor part of a building. It can be installed efficiently while being effectively suppressed.

That is, according to the present embodiment, the underfloor storage structure is separated from the base pit portion 12 formed by digging down a part of the base portion 11a of the solid base 11 and the peripheral wall 12a of the base pit portion 12. is installed in a state Rutotomoni, mounted in a state spaced with the bottom plate portion 12b, it consists repository unit 10 for inlet and outlet part 10a is disposed facing the floor opening 13a of the building floor 13, and the repository unit 10, the peripheral wall 14 of the entrance / exit is spaced from the floor opening peripheral wall 15 extending below the floor opening 13a, and the space portion s between them is defined by the airtight member 16 having flexibility. It is blocked. Therefore, even if a temperature difference is generated between the inside of the base pit portion 12 and the surrounding ground, the storage unit 10 is provided apart from the peripheral wall 12a and the bottom plate portion 12b of the base pit portion 12. Since the inside of the underfloor storage by the storage unit 10 is not affected by such a temperature difference, it is possible to effectively avoid the occurrence of condensation and mold.

  Moreover, according to this embodiment, since the space | interval part s is hold | maintained between the entrance-and-exit peripheral wall 14 of the storage unit 10, and the floor-opening peripheral wall 15 of the floor opening part 13a, these at the time of an earthquake etc. Even when a relative displacement occurs between them, it is possible to effectively avoid damaging these joint portions, and since these spacing portions s are closed by the airtight member 16, the base pit portion It is possible to block moisture from entering the inside of the underfloor storage by the storage unit 10 from 12 and to more effectively avoid the occurrence of condensation and mold.

  Furthermore, according to the present embodiment, after the base pit portion 12 is formed by digging down a part of the base portion 11a of the solid foundation 11, the formed base pit portion 12 is provided with a desired size and shape. With a simple operation of simply installing the storage unit 10 manufactured in advance in a factory or the like, it becomes possible to easily form an underfloor storage of a size that can be entered by a resident in the underfloor portion. As a work inside the base pit portion 12 having a considerable width with a space held around the storage unit 10, it is possible to easily and efficiently perform the installation work of the storage unit 10.

  Furthermore, according to the present embodiment, the floor lid 17 has the airtight packing 18 interposed between the floor opening peripheral wall 15 and the peripheral edge of the floor cover 17 when the floor opening 13a is closed. 15, it becomes possible to block moisture from entering the inside of the underfloor storage by the storage unit 10 from the inside of the building through the kitchen 22 during the closing, This makes it possible to more effectively avoid the occurrence of condensation and mold.

The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, it retracts and chamber units need not necessarily be installed on the base pit portion in a state of being prevented from floating up through the anchor member. Further, the base pit portion and the storage unit are not necessarily provided in the lower floor portion of the kitchen, and can be provided in the lower floor portion of an arbitrary area of the building. Furthermore, the hermetic packing does not necessarily have a circular cross section, and may have other various cross sectional shapes such as a rectangular cross section.

(A) is a longitudinal cross-sectional view explaining the structure of the underfloor storage structure which concerns on preferable one Embodiment of this invention, (b) is the horizontal cross-sectional view. (A) is a principal part longitudinal cross-sectional view explaining the structure of the underfloor storage structure based on preferable one Embodiment of this invention, (b) is the principal part cross-sectional view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Storage unit 10a Entrance / exit part 11 of storage unit Solid base 11a Solid base 11b Solid foundation rising part 12 Base pit part 12a Base pit part peripheral wall 12b Base pit part base 13 Floor part 13a Floor opening


14 Entry / exit peripheral wall 15 Floor opening peripheral wall 16 Airtight member 17 Floor cover 18, 18a, 18b Airtight packing 19 Thermal insulation lid 20 Anchor member 21 Base 22 Kitchen 23 Mounting table s Spacing portion between the entrance / exit peripheral wall and floor opening peripheral wall p Ventilation path

Claims (3)

By digging down a part of the base part of the solid foundation, it is installed in the base pit part in a state of being separated from the base pit part formed continuously with the solid foundation and the peripheral wall of the base pit part. The entrance part provided is composed of a storage unit having a hollow interior of a size that can be entered by a person, facing the floor opening provided to be opened and closed on the floor of the building,
And the entrance / exit peripheral wall which forms the opening peripheral part of the said entrance / exit part of this storage unit is arrange | positioned at intervals with the floor opening part peripheral wall provided and extended below from the opening peripheral part of the said floor opening part. And the gap between the entrance / exit peripheral wall and the floor opening peripheral wall is closed by a flexible airtight member,
The floor opening is covered with a floor lid so that it can be opened and closed, and supported by the peripheral wall of the floor opening below the floor lid, a heat insulating lid is detachably provided,
The heat insulating lid is supported by a heat insulating outer frame and a support base bonded and fixed along the inner side surface of the floor opening peripheral wall, and is detachably attached to the lower side of the floor lid.
The airtight member is an airtight tape made of a butyl rubber-based or acrylic rubber-based synthetic resin, and the upper edge portion thereof is airtightly bonded to the inner side surface of the support base, and the lower edge portion is stored in the housing. It is attached by airtight joining to the inner surface of the upper end of the entrance / exit peripheral wall of the storage unit,
An underfloor storage structure in which the storage unit is installed in a state in which the storage unit is supported by a mounting table provided in a bottom plate portion of the base pit portion and separated from the bottom plate portion. The floor lid covering the floor opening so as to be openable and closable is configured such that when the floor opening is closed, a peripheral edge of the floor lid is provided on the peripheral wall of the floor opening with an airtight packing interposed between the floor opening and the peripheral wall. The underfloor storage structure according to claim 1, which is in close contact with each other. The underfloor storage according to claim 1 or 2 , wherein the storage unit is installed in the base pit portion in a state in which the storage unit is prevented from being lifted through an anchor member supported from a bottom plate portion of the base pit portion. Construction.

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