Floor structure

Abstract

To provide a floor structure which prevents an inspection hatch lid from jumping up and shifting sideways, and a construction method of the floor structure.SOLUTION: A floor structure 1 includes a floor part 2 formed by comprising multiple floor members 21, and a support part 3 formed by comprising a frame member 31 that supports the floor part 2. The floor part 2 is provided with an inspection hatch 22 that has an opening 23 formed among multiple floor members 21 and a lid part 24 which is detachably provided on the floor part 2 so as to cover the opening 23 and constitutes a part of the floor part 2. At least one mounting bracket 7 is fixed to the end part of the frame member 31 which extends across the inspection hatch 22 provided at the end part of the floor part 2, and the mounting bracket 7 is provided to cover from above an extension part 243 which extends horizontally from a side part 242 of the lid part 24, and has a jump-up prevention part 72 which prevents the lid part 24 from jumping up, and a restricting part 71 which abuts against the side part 242 of the lid part 24 to suppress horizontal displacement of the lid part 24.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a floor structure and a method for constructing the floor structure.

Background Art

[0002] Conventionally, floor structures disposed outdoors of buildings such as rooftops and verandas have been known. Such a floor structure is provided with an inspection opening and a lid for closing the inspection opening. However, depending on the position where the inspection opening is installed, there has been a problem that when stepping on the lid, the lid jumps up, resulting in poor usability.

[0003] In order to solve such a problem, a deck structure for preventing the lid from jumping up has been proposed (see Patent Document 1). According to this invention, the lid has a rotation prevention member on the lower surface, and the rotation prevention member is provided so as to overlap under the floor support member, thereby preventing the lid from jumping up.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, as a factor that deteriorates the usability of the floor structure, in addition to the lid jumping up, there has also been a problem of the lid shifting laterally. When the deck is installed in a place surrounded by a handrail such as a veranda, a play (gap) is provided between the handrail and the deck. When an inspection opening is installed at the end of this deck, there has been a problem that when stepping on the lid of the inspection opening, the lid shifts and causes a lateral shift. Therefore, there is a demand for a floor structure that can prevent not only the lid from jumping up but also the lid from shifting laterally.

[0006] The present disclosure aims to provide a floor structure for preventing the lid of an inspection port from popping up and shifting horizontally, and a method for constructing the floor structure.

Means for Solving the Problems

[0007] The present disclosure is a floor structure including a floor portion composed of a plurality of floor members and a support portion composed of a frame member supporting the floor portion. The floor portion includes an inspection port having an opening formed between the plurality of floor members and a lid portion detachably provided on the floor portion so as to cover the opening and constituting a part of the floor portion. At least one mounting bracket is fixed to an end portion of the frame member extending across the inspection port provided at an end portion of the floor portion. The mounting bracket is provided so as to cover an extending portion extending horizontally from a side portion of the lid portion from above, and includes a popping-up prevention portion for preventing the lid portion from popping up and a restricting portion for contacting a side portion of the lid portion to suppress horizontal displacement of the lid portion.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Embodiments for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0010] In the drawings of the present disclosure, four predetermined directions orthogonal to each other are represented by "Fr direction", "Rr direction", "R direction", and "L direction". The "Fr direction" is the front direction surrounded by the wall portion W in the deck 1, the "Rr direction" is the back direction where people can enter and exit, which is not closed by the wall portion W, the "R direction" is the right direction when the deck 1 is viewed from the front, and the "L direction" is the left direction when the deck 1 is viewed from the front, respectively.

[0011] As shown in FIG. 1, the deck 1 of the present embodiment is a deck that is installed outdoors such as a veranda of a building, has a flat surface, and is rectangular in plan view. As shown in FIG. 1, except for the Rr direction continuous with the building, the three directions are surrounded by the wall portion W. The deck 1 is arranged such that the sides in the Fr direction and the Rr direction are long sides, and the sides in the R direction and the L direction are short sides. When the installation location is a veranda, the wall portion W is composed of a rising wall, a veranda railing, etc. Also, when installed in the atrium of a building, the wall portion W may be the outer wall of the building. In FIG. 1, the wall portion W is represented by a two-dot chain line, and the height and thickness are omitted.

[0012] As shown in FIGS. 2 to 4, the deck 1 has a floor portion 2 and a support portion 3. The support portion 3 is provided below the floor portion 2 so as to support the floor portion 2, and is installed on the floor surface such as a veranda. The floor portion 2 is configured to include a plurality of floor boards 21 and has an inspection opening 22. The floor board 21 is a floor member having a rectangular shape in plan view. The long side of the floor board 21 constitutes the short side of the deck 1, and a plurality of floor boards 21 are arranged from the L direction to the R direction of the deck 1. In FIG. 2, the wall portion W is represented by a two-dot chain line, and the thickness is omitted.

[0013] As shown in FIG. 3, the floor board 21 has an upper surface 211a, a lower surface 211b, side plates 212, an extension portion 213, and a hollow portion 214. The upper surface 211a and the lower surface 211b are paired members and are formed of long flat plates. The upper surface 211a serves as the surface material of the floor board 21, and the lower surface 211b is fixed to the support portion 3. The side plate 212 is a plate material that connects the upper surface 211a and the lower surface 211b in the vertical direction, and a plurality of side plates 212 are provided between the upper surface 211a and the lower surface 211b at regular intervals.

[0014] Two side plates 212 provided at the short-side end of the floor board 21 connect the upper surface 211a and the lower surface 211b at positions inside the short side of the upper surface 211a and the lower surface 211b. With this configuration, an extension portion 213 that is continuous with the lower surface 211b and extends horizontally from the side plate 212 is formed. A plurality of hollow portions 214 are formed between the upper surface 211a and the lower surface 211b and the plurality of side plates 212.

[0015] As shown in FIGS. 1 and 2, the inspection opening 22 can be provided at a plurality of locations on the floor portion 2. The inspection opening 22 is composed of a first inspection opening 22A, a second inspection opening 22B, a third inspection opening 22C, and a fourth inspection opening 22D. The first inspection opening 22A is installed at the center of the short-side end in the L direction of the deck 1. The second inspection opening 22B is arranged at an interval of opening three floor boards 21 in the R direction from the first inspection opening 22A. The third inspection opening 22C is arranged slightly in the R direction from the center of the long-side end in the Fr direction of the deck 1. The fourth inspection opening 22D is arranged at a position where the long-side end in the Fr direction and the short-side end in the R direction of the deck 1 intersect.

[0016] The inspection opening 22 is provided in a part of the floor board 21. The length in the short side direction is the same as that of the floor board 21, and the length in the long side direction is approximately half of that of the floor board 21. As shown in FIG. 6, the inspection opening 22 has an opening 23 and a lid portion 24. An opening 23 is formed between a plurality of floor boards 21, and the space under the floor or the groove of the rain gutter can be inspected through the opening 23. As shown in FIGS. 3 and 4, the lid portion 24 has an upper surface 241a, a lower surface 241b, side plates 242, an extension portion 243, a hollow portion 244, and a handle portion 245. In FIG. 6, the wall portion W and the support base 32 are omitted. The deck 1 of the present embodiment has a plurality of inspection openings 22, but is not limited thereto. One inspection opening 22 of the present disclosure may be sufficient.

[0017] The lid portion 24 is detachably provided on the floor portion 2 so as to cover the opening 23 and is used by being placed on the support portion 3. The upper surface 241a, the lower surface 241b, the side plates 242, the extension portion 243, and the hollow portion 244 respectively correspond to the upper surface 211a, the lower surface 211b, the side plates 212, the extension portion 213, and the hollow portion 214 of the floor board 21. Since the configurations are the same except for the different lengths in the longitudinal direction, the description thereof is omitted. As shown in FIG. 6, the handle portion 245 is a rotary handle that is exposed by rotation. When opening and closing the lid portion 24, the handle portion 245 with the handle exposed can be grasped to move the lid portion 24 in the vertical direction. The handle portion 245 is not limited to the present embodiment. Any shape of handle may be used. For example, an embedded type or the like may be used, and the storage method is not limited, and a handle that is not stored may also be used.

[0018] The lid portion 24 is not fixed to the support portion 3 and the floor board 21, but is configured to move easily when a force is applied. Therefore, a plurality of lid fixing members, which will be described later, are attached to fit the location where the inspection opening 22 is arranged. The lid fixing member is a member having an effect of suppressing the free movement of the lid portion 24.

[0019] As shown in FIGS. 3 and 4, the support portion 3 includes a large draw 31, a support base 32, and a fixture 33. The large draw 31 is a frame member that supports the floor portion 2 and is a substantially square tubular aluminum extrusion. The fixture 33 is a bent sheet metal member having a downward convex shape. The upper surface of the large draw 31 is installed in contact with the lower portion of the floor board 21, and the extending portion 213 of the floor board 21 is fixed to the upper surface of the large draw 31 by the fixture 33. As shown in FIG. 2, in order for the lid portion 24 of the inspection port 22 to move freely, it is not fixed to the large draw 31 by the fixture 33, and the fixture 33 is provided at a position avoiding the lid portion 24.

[0020] As shown in FIGS. 2 and 5, the large draw 31 is distinguished into a long member 311 and a short member 312 according to its length. The long member 311 is provided from the L-direction end to the R-direction end of the deck 1, and two pairs are provided at positions inside the longitudinal direction ends of the deck 1. With this configuration, the floor portion 2 is supported by the paired long members 311 over the entire floor. In FIG. 5, the wall portion W and the support base 32 are omitted.

[0021] As shown in FIGS. 2 and 5, the short member 312 is provided to support the lid portion 24 of the inspection port 22. As an example, the first inspection port 22A and the second inspection port 22B are installed between the paired long members 311. Therefore, by providing the paired short members 312 at the short side ends of the lid portion 24 so as to be orthogonal to the lid portion 24, the short side ends of the lid portion 24 can be placed on the short members 312. In order to place the lid portions 24 of the first inspection port 22A and the second inspection port 22B, a common short member 312 can be used, so two paired short members 312 are sufficient.

[0022] Next, there are the third inspection opening 22C and the fourth inspection opening 22D. Since the short side ends in the Fr direction of these two inspection openings 22 are already supported by the long member 311, the lid portion 24 can be placed on the long member 311. On the other hand, since there is no support at the short side end of the lid portion 24 in the Rr direction, a short member 312 is provided at the short side end in this Rr direction. As a result, the lid portions 24 of the third inspection opening 22C and the fourth inspection opening 22D can also be placed and installed on the large beam 31. Also, when the longitudinal length of the lid portion 24 is such that it reaches the paired long member 311, or when the size of the deck 1 is small and the lid portion 24 can be reliably supported only by the paired long member 311, etc., the short member 312 can be omitted.

[0023] As shown in FIGS. 3 and 4, the support base 32 is installed on the floor such as a veranda and is a steel material that supports the large beam 31. As shown in FIG. 2, the support bases 32 are arranged at regular intervals along the longitudinal direction of the large beam 31. Four support bases 32 are provided below the long member 311, and two support bases 32 are provided below the short member 312. As shown in FIGS. 3 and 4, the support base 32 has a base portion 321 and a support portion 322. The base portion 321 is a steel material in a substantially square tubular shape, and two protruding pieces 321a for holding the support portion 322 are provided along the upper surface edges in the Fr direction and the Rr direction. The support portion 322 is a bent steel material in a substantially C shape. The large beam 31 is installed on the opening surface, and the side surface portion of the support portion 322 and the longitudinal side surface portion of the large beam 31 are fixed with long bolts.

[0024] The base portion 321 is installed on the floor such as a veranda. However, depending on the building, there may be a water gradient provided on the floor. In that case, as shown in FIG. 4, the base portion 321 is installed obliquely along the water gradient S. However, three long holes are provided in the side wall of the support portion 322. By adjusting the mounting position of the support portion 322 while maintaining the horizontality of the large beam 31, the deck 1 can be installed horizontally even on a floor with a water gradient. The base portion 321 and the floor surface such as the veranda are fixed with an adhesive or the like.

[0025] Next, when the lid portion 24 of the inspection port 22 is installed on the floor portion 2, a plurality of lid fixing members that suppress the lid portion 24 from freely moving will be described. As shown in FIGS. 7 to 9, the lid portion 24 has, as lid fixing members, a lateral displacement preventing fitting 4, a longitudinal displacement preventing member 5, a rotation preventing member 6, and a mounting fitting 7.

[0026] As shown in FIG. 3, a gap X is provided in the longitudinal direction of the deck 1 between the floor board 21 and the lid portion 24. When viewed from the Fr direction, the lateral displacement occurs in the lid portion 24 with respect to this gap X. Since the floor board 21 is fixed to the large pull 31 by the fixed metal fitting 33, its position does not move. However, since the lid portion 24 is designed to be simply placed on the large pull 31, when the lid portion 24 is stepped on, the lid portion 24 will laterally displace with respect to the gap X. The dedicated member for preventing this lateral displacement is the lateral displacement preventing fitting 4. The lateral displacement preventing fitting 4 includes a fixing member 4a.

[0027] As shown in FIGS. 7 and 8, the lateral displacement preventing fitting 4 is a plate-shaped fitting bent in an arc shape, and a total of four lateral displacement preventing fittings 4 are used, two on each side surface of the lid portion 24. The fixing member 4a is two members provided with resin caps at both ends of a square tubular steel material. The lateral displacement preventing fitting 4 is fixed to the lower surface 241b of the lid portion 24 with screws through the fixing member 4a provided in the hollow portion 214 of the lid portion 24. The lateral displacement preventing fitting 4 is bent so that the side surface side of the floor board 21 becomes a convex portion. As shown in FIG. 3, when the lid portion 24 laterally displaces, the convex portion of the lateral displacement preventing fitting 4 abuts against the upper surface 211a of the floor board 21, and the lateral displacement can be prevented.

[0028] As shown in Fig. 4, a gap Y is provided in the short side direction of the deck 1 between the floor board 21 and the lid portion 24. The gap Y is required as a margin for smoothly opening and closing the lid portion 24. However, since the gap Y is provided, there has been a problem that the lid portion 24 is displaced vertically. The dedicated member for preventing this vertical displacement is the vertical displacement prevention member 5. As shown in Fig. 8, the vertical displacement prevention member 5 is a pair of L-angles. As shown in Fig. 4, the L-angles are arranged in a pair in accordance with the interval between the two large pulls 31 provided at the lower part of the inspection port 22. The vertical displacement prevention member 5 is symmetrically arranged so that the side walls of the two L-angles face the side surface of the large pull 31 facing the opening 23, and the lower surface 211b of the lid portion 24 and the upper surface of the L-angle are fixed with screws. Thereby, the side wall of the L-angle abuts against the side surface of the large pull 31 facing the opening 23, and the vertical displacement prevention member 5 can prevent the vertical displacement of the lid portion 24.

[0029] As shown in Fig. 2, the third inspection port 22C and the fourth inspection port 22D are installed on the long member 311. Therefore, there is a distance Z from the long member 311 to the end portion of the lid portion 24 in the Fr direction. When stepping on the portion corresponding to the distance Z of the lid portion 24, there has been a problem that the end portion of the lid portion 24 in the Rr direction jumps up with the long member 311 as the rotation axis. The dedicated member for preventing this jump is the rotation prevention member 6 shown in Figs. 7 and 8.

[0030] As shown in Figs. 7 and 8, the rotation prevention member 6 is a member provided with a resin cap at one end of a square tubular steel material. As shown in Fig. 4, the end portion of the rotation prevention member 6 where the resin cap is not provided is inserted into the hollow portion 244 of the lid portion 24, and the upper surface of the rotation prevention member 6 and the upper surface 241a of the lid portion 24 are fixed with screws. At that time, the end portion provided with the resin cap on the opposite side is provided so as to protrude from the lid portion 24. When installing the lid portion 24 in the opening 23, the end portion of the rotation prevention member 6 protruding from the lid portion 24 is directed obliquely downward and inserted into the hollow portion 214 of the floor board 21. With this structure, the rotation prevention member 6 is suppressed by the upper surface 211a of the floor board 21, and the lid portion 24 can be prevented from jumping up.

[0031] As described above, the lateral displacement prevention fitting 4 and the rotation prevention member 6 each have only one function. When it is desired to prevent both the lateral displacement and the upward springing of the lid portion 24, two types of lid fixing members are required. As shown in Fig. 2, at the first inspection port 22A and the second inspection port 22B, since the short side end portion of the lid portion 24 is installed on the short member 312 of the large pull 31, there is no need to prevent upward springing. Therefore, the rotation prevention member 6 is not required at the first inspection port 22A and the second inspection port 22B.

[0032] However, at the fourth inspection port 22D, as described above, two problems occur: the upward springing and the lateral displacement of the lid portion 24. After providing the vertical displacement prevention member 5 for preventing vertical displacement on the lid portion 24, further providing the lateral displacement prevention fitting 4 and the rotation prevention member 6 has the problem that the construction is time-consuming and the lid portion 24 has a complicated configuration.

[0033] The mounting fitting 7 is a member that can solve this problem and can suppress the two movements of the upward springing and the lateral displacement of the lid portion 24 installed at the short side end portion of the deck 1. As shown in Figs. 1 and 5, the mounting fitting 7 is a fitting having a substantially C-shaped configuration. At least one mounting fitting 7 is fixed by screws to the upper surface of the end portion of the large pull 31 extending across the inspection port 22D provided at the end portion of the floor portion 2. Since the lid portion 24 is installed on two large pulls 31, the mounting fitting 7 is also provided on the same large pull 31.

[0034] As shown in Figs. 9 and 10, the mounting fitting 7 has a regulating portion 71, an upward springing prevention portion 72, a side surface 73, a lower surface 74, and the burring tap H1 shown in Fig. 5. The upward springing prevention portion 72, the side surface 73, and the lower surface 74 are formed in a substantially C-shaped configuration by bending a stainless steel sheet metal. The upward springing prevention portion 72 has a horizontal plane that extends in the horizontal direction and covers the extending portion 243 of the lid portion 24 from above. The regulating portion 71 has a tapered surface that extends obliquely upward from the upward springing prevention portion 72 and whose tip contacts the side plate 242 of the lid portion 24. In Figs. 9 and 10, the wall portion W and the support base 32 are omitted.

[0035] As shown in Fig. 11, two mounting brackets 7 are respectively provided in advance on the upper side of the large draw 31, and the lid portion 24 is installed so as to be fixed to the mounting bracket 7. As shown in Fig. 3, the extending portion 243 of the lid portion 24 is held by the restricting portion 71, the anti-lifting portion 72, and the lower surface 74, and the lid portion 24 is fixed to the large draw 31 by the extending portion 243 being firmly gripped by the mounting bracket 7. The restricting portion 71 holds the extending portion 243 of the lid portion 42, and by the side plate 242 being abutted against the tip of the restricting portion 71, the horizontal displacement of the lid portion 24 in the L direction or the R direction can be suppressed. With this configuration, the mounting bracket 7 can prevent the lateral displacement of the lid portion 24. In Fig. 11, the wall portion W and the support base 32 are omitted.

[0036] As shown in Fig. 3, the anti-lifting portion 72 is provided so as to cover the extending portion 243 of the lid portion 24 from above. By the mounting bracket 7 firmly gripping the extending portion 243 as described above, the lid portion 24 can be prevented from being lifted from the large draw 31. With this configuration, the anti-lifting portion 72 can prevent the vertical rotation of the lid portion 24 and suppress the lifting of the lid portion 24. The side surface 73 is a side surface continuous from the anti-lifting portion 72 and is substantially the same height as the height of the extending portion 243.

[0037] As shown in Fig. 10, since the lower surface 74 is inserted and fixed into the hollow portion of the large draw 31, the lengths in the Fr direction and the Rr direction are shorter than those of the restricting portion 71, the anti-lifting portion 72, and the side surface 73, and the length is substantially the same as the length of the upper surface edge portion of the end of the large draw 31. Returning to Fig. 3, the lower surface 74 protrudes longer in the L direction than the ends of the anti-lifting portion 72 and the restricting portion 71. With this configuration, since the long protruding surface of the lower surface 74 is exposed upward, the operation of fastening the screw using a tool becomes easier, and the operation of fixing the mounting bracket 7 to the large draw 31 can be facilitated.

[0038] The barring tap H1 is provided in plurality on a surface that protrudes long in the L direction of the lower surface 74 and is a tapped hole that has been subjected to tapping with a convex shape on the lower surface. As shown in FIGS. 3 and 5, by having a convex shape downward, the screw to be inserted can be screwed deeper, and the mounting bracket 7 can be securely fixed to the large pull 31. With this configuration, the mounting bracket 7 can reliably suppress the two movements of the lid portion 24, namely, the upward bounce and the lateral displacement.

[0039] Next, the lid fixing members used at each inspection port 22 will be described. Since the longitudinal displacement prevention member 5 is used at all the inspection ports 22, the description thereof will be omitted. As shown in FIG. 2, at the first inspection port 22A, the short end portion of the lid portion 24 is installed on the paired short members 312. Therefore, although the upward bounce of the lid portion 24 does not occur, there is a possibility of lateral displacement. As shown in FIG. 5, since the first inspection port 22A is installed at the short end portion of the deck 1, the mounting bracket 7 can be provided at the end portion of the large pull 31. By providing two mounting brackets 7 at the end portions of the short members 312, the lateral displacement of the lid portion 24 can be prevented.

[0040] At the second inspection port 22B, there is a possibility that the lid portion 24 may be laterally displaced in the same manner as the first inspection port 22A. For this reason, by providing a total of four lateral displacement prevention brackets 4, two on each side surface of the lid portion 24, the lateral displacement of the lid portion 24 can be prevented.

[0041] As shown in FIG. 2, at the third inspection port 22C, due to the distance Z from the above-described long member 311 to the end portion of the lid portion 24 in the Fr direction, there is a possibility that the lid portion 24 may bounce upward and be laterally displaced. For this reason, as shown in FIG. 6, by providing the rotation prevention member 6 and the four lateral displacement prevention brackets 4, the upward bounce and the lateral displacement of the lid portion 24 can be prevented.

[0042] As described above, by providing the mounting bracket 7 at the end of the large draw 31, it is possible to prevent the lid portion 24 from jumping up and lateral displacement. As shown in FIG. 6, compared with the third inspection port 22C having the same two problems, the lid fixing member of the fourth inspection port 22D can have a simpler configuration. Since the number of lid fixing members used is small, the construction is simplified, and the opening and closing operation of the lid portion 24 is made easier. The method of opening and closing the lid portion 24 of the fourth inspection port 22D will be described later.

[0043] By using the mounting bracket 7, at the inspection port 22 provided at the short side end of the deck 1, the two problems of the lid portion 24 jumping up and lateral displacement can be solved with one type of bracket. Further, with this configuration, the construction of the deck 1 is simplified, the appearance of the lid portion 24 is made neater, and the design property of the deck 1 can be improved.

[0044] Next, the method of opening and closing the lid portion 24 provided with the mounting bracket 7 will be described. First, the method of installing the lid portion 24 on the floor portion 2 will be described. As shown in FIG. 11, the long member 311 and the short member 312 can be visually recognized in the opening 23 of the fourth inspection port 22D. Further, the mounting bracket 7 is fixed in advance at the R-direction ends of the long member 311 and the short member 312.

[0045] First, rotate the handle portion 245 of the lid portion 24 to raise a handle (not shown), grab the handle, and lift the lid portion 24. Next, as shown in FIGS. 11 and 12, tilt the lid portion 24 obliquely so that the R direction thereof is downward, toward the recess formed by the upward jump prevention portion 72, the side surface 73, and the lower surface 74 of the mounting bracket 7, and bring the lid portion 24 closer to the mounting bracket 7. Then, insert the extending portion 243 of the lid portion 24 into the recess of the mounting bracket 7 along the tapered surface of the restricting portion 71 of the mounting bracket 7, and rotate the lid portion 24 downward with the extending portion 243 as the rotation axis.

[0046] Finally, as shown in FIG. 13, confirm that the extending portion 243 of the lid portion 24 is firmly fitted into the recess of the mounting fitting 7, and that the extending portion 243 is securely fixed by the restricting portion 71, the anti-bouncing portion 72, the side surface 73, and the bottom surface 74. Then, rotate the handle of the handle portion 245 (not shown) to store it inside the lid portion 24. In FIGS. 12 and 13, the wall portion W and the support base 32 are omitted.

[0047] Next, a method of opening the lid portion 24 from the floor portion 2 will be described. This is the reverse of the movement shown from FIG. 12 to FIG. 13 described above, and is the flow from FIG. 13 to FIG. 12. Since the direction of the arrow in the figure is reversed, the illustration is omitted. First, rotate the handle portion 245 (not shown) of the lid portion 24 to raise the handle, and firmly grasp the handle.

[0048] Next, as shown in FIG. 13, with the L direction of the lid portion 24 upward, lift the lid portion 24 diagonally upward with the extending portion 243 as the rotation axis. As shown in FIG. 12, continue to rotate while sliding the extending portion 243 of the lid portion 24 on the bottom surface 74 of the mounting fitting 7 until the lid portion 24 stands up diagonally. Finally, while sliding the extending portion 243 of the lid portion 24 along the tapered surface of the restricting portion 71, lift the lid portion 24 diagonally upward in the L direction. After the extending portion 243 is completely removed from the restricting portion 71, return the lid portion 24 horizontally and install it at an arbitrary location.

[0049] Since the restricting portion 71 of the mounting fitting 7 has a tapered surface, when closing the lid portion 24, the extending portion 243 of the lid portion 24 can be easily joined to the mounting fitting 7, and the extending portion 243 can be securely fixed to the mounting fitting 7. Also, when opening the lid portion 24, the lid portion 24 can be easily removed from the mounting fitting 7 while sliding the extending portion 243 along the tapered surface of the restricting portion 71 without applying excessive force.

[0050] According to the construction method of the deck 1 described above, the lid portion 24 of the inspection port 22 provided at the short side end of the deck 1 can be fixed to the large beam 31 by the mounting bracket 7. Since the mounting bracket 7 can prevent both the lid portion 24 from jumping up and lateral displacement, there is no need to provide an extra bracket on the lid portion 24. With this configuration, it is not necessary to open and close the lid portion 24 while checking the positions of a plurality of metal fittings, so the opening and closing method of the lid portion 24 can be made easier.

[0051] The present disclosure is not limited to the above-described embodiments and can be appropriately modified. For example, the configuration of the deck 1 is not limited to the configuration of this embodiment, and the number of floor boards 21, the dimensions of the floor boards 21, the number of inspection ports 22, the dimensions of the inspection ports 22, the installation position of the inspection ports 22 in the floor portion 2, the number of large beams 31, etc. can be freely deformed, improved, etc.

[0052] In this embodiment, the mounting bracket 7 is made of stainless steel, but any material can be used. For example, it may be a mounting bracket made of steel, aluminum, or resin. Also, the shape and position of the inspection port 22 are not limited to this embodiment. For example, an inspection port extending across a plurality of floor boards 21 may be used, and the shape of the lid portion 24 is not limited to a rectangle and may be any shape such as a square or a circle.

[0053] Also, the deck 1 of the present disclosure is not limited to use on a veranda. The deck 1 may be directly provided on the ground such as a garden so as to be continuous with the first floor portion of the building. Also, instead of the support base 32, a large beam 31 may be supported using boulders or bundled columns. Also, the deck 1 is not limited to artificial wood, and the deck 1 may be configured using natural wood for each member.

[0054] [Aspect 1] A floor structure including a floor portion configured to include a plurality of floor members and a support portion configured to include a frame member that supports the floor portion, The floor portion is, An opening formed between the plurality of floor members, and A inspection port is provided detachably on the floor portion so as to cover the opening portion, and includes a lid portion that forms a part of the floor portion. At least one mounting bracket is fixed to an end portion of the frame member extending across the inspection port provided at an end portion of the floor portion. The mounting bracket is provided so as to cover an extending portion extending horizontally from a side portion of the lid portion from above, and includes a bounce prevention portion that prevents the lid portion from bouncing up. A floor structure having a restricting portion that abuts against a side portion of the lid portion to suppress horizontal displacement of the lid portion. [Aspect 2] The floor structure according to Aspect 1, wherein the restricting portion has a tapered surface that extends obliquely upward and whose tip abuts against a side portion of the lid portion. [Aspect 3] The floor structure according to Aspect 1 or 2, wherein the bounce prevention portion has a horizontal surface that extends horizontally and covers the extending portion from above. [Aspect 4] The floor structure according to any one of Aspects 1 to 3, wherein the tapered surface of the restricting portion is provided so as to continuously extend obliquely upward from the horizontal surface of the bounce prevention portion. [Aspect 5] A construction method of the floor structure according to any one of Aspects 2 to 4, A construction method of the floor structure, wherein the lid portion is detached from and attached to the floor portion while tilting the lid portion so that the extending portion of the lid portion is along the lower surface of the tapered surface of the restricting portion.

Explanation of Signs

[0055] 1 Deck (floor structure), 2 Floor portion, 3 Support portion, 7 Mounting bracket, 21 Floor board (floor member), 22 Inspection port, 23 Opening portion, 24 Lid portion, 31 Girder (frame member), 71 Restricting portion, 72 Bounce prevention portion, 242 Side plate (side portion of the lid portion), 243 Extending portion

Claims

1. A floor structure comprising a floor portion composed of a plurality of floor members and a support portion composed of a frame member that supports the floor portion, wherein the floor portion has an inspection opening formed between the plurality of floor members and a lid portion that is detachably provided on the floor portion so as to cover the opening and constitutes a part of the floor portion, at least one mounting bracket is fixed to an end portion of the frame member extending across the inspection opening provided at an end portion of the floor portion, the mounting bracket is provided so as to cover an extension portion extending horizontally from a side portion of the lid portion from above, and is a bounce prevention portion that prevents the lid portion from bouncing up, and has a regulation portion that abuts against a side portion of the lid portion and suppresses horizontal displacement of the lid portion. A floor structure

2. The floor structure according to claim 1, wherein the regulation portion has a tapered surface that extends obliquely upward and whose tip abuts against a side portion of the lid portion.

3. The floor structure according to claim 1 or 2, wherein the bounce prevention portion has a horizontal surface that extends horizontally and covers the extension portion from above.

4. The floor structure according to claim 3, wherein the tapered surface of the regulation portion is provided to extend obliquely upward continuously from the horizontal surface of the bounce prevention portion.

5. A construction method of the floor structure according to claim 2, wherein the lid portion is attached and detached to and from the floor portion while tilting the lid portion so that an extension portion of the lid portion follows a lower surface of the tapered surface of the regulation portion. A construction method of a floor structure

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