JP7075263B2 - Floor construction method - Google Patents

Description

The present invention relates to a floor construction method for constructing the floor of a building, and more particularly to a floor construction method for constructing a floor having a structure in which the panel material constituting the floor is fixed by a fixing material and the fixing material is supported by a support. ..

As a floor structure of a building, a floor structure in which a panel material constituting the floor is fixed by a fixing material such as a large pull and the fixing material is supported by a support such as a bundle is already known (for example, Patent Document 1). reference).
In the floor structure described in Patent Document 1, a bundle as a support column includes a large pull support portion, a support column main body, and a base portion. The base portion is grounded to the soil floor or the like. The large pull support portion is a portion in which a square tubular large pull is fitted to fix the large pull. The strut body supports the large pull support portion at a position below the large pull support portion. In addition, the strut body is provided with a turnbuckle in the middle position, and the height of the strut body can be changed by turning the turnbuckle. This makes it possible to adjust the vertical position of the large pull support portion.

Japanese Patent Application Laid-Open No. 2002-121883

In the above-mentioned conventional technique, when adjusting the vertical position of the large pull, the vertical position of the large pull is adjusted by operating the operated portion (for example, a turnbuckle) provided in the middle part of the column main body of the bundle. .. At this time, in order to operate the operated portion of the strut body, the operated portion is gripped from the side of the strut body or the operating tool is brought close to the operated portion. For this reason, it is difficult to operate the operated part in the conventional floor structure, and it is extremely difficult to operate the operated part especially when adjusting the vertical position of the large pull after placing the floor panel on the large pull. Will be.

The present invention has been made in view of the above problems, and an object thereof is floor construction in which the vertical position of a fixing material supporting the panel material can be easily adjusted even after the floor panel material is arranged. Is to provide a method.

According to the floor construction method according to the present invention, the above problem is to form an underfloor unit in which a fixing material that supports a panel material constituting the floor of a building and a support column that supports the fixing material are integrated into a base portion of the floor. The step of arranging the panel material on the fixing material and the vertical position of the fixing material so that the upper part of the support is exposed from the panel material after arranging the underfloor unit. The vertical position of the fixing material is adjusted, including a step of changing the height of the support column by operating an operated portion provided on the upper portion of the support column assembled to the fixing material for adjustment. The operation of the operated portion is solved by performing the operation of the operated portion through an opening provided at an upper position of the operated portion in the portion of the panel material placed on the fixing material.
According to the above-mentioned floor construction method, the height of the support column can be adjusted after the panel material is placed on the underfloor unit in which the fixing material supporting the panel material and the support column are integrated. At this time, since the height of the column can be adjusted from above the panel material, the vertical position of the fixing material and the panel material can be easily adjusted. That is, according to the above-mentioned floor construction method, the labor of floor construction can be reduced.

According to the floor construction method according to the present invention, the above problem is to form an underfloor unit in which a fixing material for supporting a panel material constituting the floor of a building and a support column for supporting the fixing material are integrated as a base portion of the floor. The step of arranging the panel material on the fixing material and the vertical position of the fixing material so that the upper part of the support is exposed from the panel material after arranging the underfloor unit. Including the step of operating the operated portion provided on the upper part of the support column attached to the fixing material to change the assembly position of the support column with respect to the fixing material in the vertical direction. The operation of the operated portion for adjusting the vertical position of the fixing material is performed through an opening provided at an upper position of the operated portion in the portion of the panel material placed on the fixing material. The support column comprises a receiving portion into which the fixing material can be fitted, and the operated portion that penetrates the bottom wall of the receiving portion and projects upward from the bottom wall. The problem is solved by fitting the fixing material into the receiving portion of the support column so that the operated portion penetrates the bottom of the fixing material.
According to the above-mentioned floor construction method, the height of the support column can be adjusted after the panel material is placed on the underfloor unit in which the fixing material supporting the panel material and the support column are integrated. At this time, since the height of the column can be adjusted from above the panel material, the vertical position of the fixing material and the panel material can be easily adjusted. That is, according to the above-mentioned floor construction method, the labor of floor construction can be reduced.
Further, by fitting the fixing material to the receiving portion of the support, the support can be easily assembled to the fixing material. This makes it possible to improve the workability of floor construction.

In the above-mentioned floor construction method, the operation of the operated portion for adjusting the vertical position of the fixing material is performed at the position above the operated portion of the portion placed on the fixing material in the panel material. It may be done through a hole or notch formed.
By doing so, a hole or a notch formed as an opening is provided in the upper position of the operated portion in the portion of the panel material placed on the fixing material, and the vertical position of the fixing material can be determined. When making adjustments, the operated portion can be operated through this hole or notch. This makes it even easier to operate the operated portion to adjust the vertical position of the fixing material.

In the above-mentioned floor construction method, among the columns, the column body having the operated portion at the upper end is inserted into an insertion hole formed in the fixing material, and the columns are assembled to the fixing material to be fixed. The operation of the operated portion for adjusting the vertical position of the material is performed through the opening formed above the insertion hole in the portion of the panel material placed on the fixing material. good.
By doing so, by inserting the column main body of the column into the insertion hole formed in the fixing material, the column can be appropriately assembled to the fixing material.

In the above floor construction method, a pair of holders arranged apart from each other are installed at the rising portion of the foundation of the building, and the underfloor unit is attached to the pair of holders with the underfloor unit. It is preferable that the fixing material is arranged so as to hold each end of the fixing material.
By doing so, when arranging the fixing material, the fixing material can be easily positioned. That is, according to the above floor construction method, it becomes easy to arrange the underfloor unit.

According to the present invention, the vertical position of the fixing material that supports the panel material can be easily adjusted even after the floor panel material is arranged.

It is a schematic diagram which shows an example of the floor structure in the building of this invention. It is a figure which shows the assembly procedure of the underfloor unit. It is a figure explaining the procedure of assembling a bundle in a large pull. It is a figure which shows the arrangement example of the underfloor unit. It is a side view which shows the arrangement state of the underfloor unit. It is a figure which shows the state which a large pull is held by a holder. It is a figure which shows the state which the floor panel is arranged in the underfloor unit. It is a figure explaining the adjustment of the assembly position of a bundle. It is a figure which shows the state before adjustment of the assembly position of the bundle which concerns on a modification. It is a figure which shows the state after adjustment of the assembly position of the bundle which concerns on a modification. It is a figure which shows the floor panel which concerns on the modification.

Hereinafter, a method of constructing a floor of a building (floor construction method) according to the present invention will be described with reference to FIGS. 1 to 11. It should be noted that the examples described below are for facilitating the understanding of the present invention and do not limit the present invention. That is, the present invention can be modified or improved without departing from the spirit of the present invention. Also, of course, the present invention may include an equivalent thereof.

In the following, the three directions orthogonal to each other will be referred to as the X direction, the Y direction, and the Z direction. Here, the X direction and the Y direction are horizontal directions. More specifically, the X direction corresponds to the longitudinal direction (corresponding to a predetermined direction) of the large pull 12 described later, and the Y direction corresponds to the direction intersecting (orthogonal) with the longitudinal direction of the large pull 12. Further, the Z direction is a vertical direction (vertical direction).

<< Building composition >>
The building (hereinafter referred to as building 1) for which the floor is constructed by the floor construction method according to the present embodiment is, for example, a multi-story house or building, and the floor structure shown in FIG. 1 is adopted as the floor structure of the first floor. is doing. FIG. 1 is a schematic view showing an example of a floor structure in a building 1, and is a view of the floor 10 and the underfloor unit 20 from the X direction. The floor structure shown in FIG. 1 is not only applied to a multi-story building, but is also applicable to a one-story building such as a one-story building.

The floor 10 is configured by laying a floor panel 11 as a panel material in a floor installation space and fixing a decorative material (not shown) on the floor panel 11. The floor panel 11 is made of plywood having a substantially rectangular shape in a plan view. As shown in FIG. 1, the underfloor unit 20 is arranged between the floor 10 and the soil floor FL, and supports the floor 10 from below. As shown in FIGS. 2 and 3, the underfloor unit 20 is formed by assembling and integrating a large pull 12 as a fixing material and a bundle 13 as a support.

The large pull 12 is made of a square cylindrical steel material, and a floor panel 11 is installed on the upper end surface thereof.
Further, the operation holes 12a are formed in the large pull 12 at predetermined intervals. The operation hole 12a is a through hole penetrating up and down, and the bundle 13 is attached to the position of each operation hole 12a.

As shown in FIG. 1, the bundle 13 is a member that supports the large pull 12 at a position below the large pull 12. The bundle 13 is assembled to the large pull 12 at substantially constant intervals along the X direction. The number of bundles 13 shown in the present embodiment is an example and can be appropriately changed according to the length of the large pull 12 and the arrangement interval of the bundles 13.

Further, as shown in FIGS. 1 to 3, the bundle 13 has a receiving portion 14 into which the large pull 12 can be fitted, a support column body 15 extending in the vertical direction, and a base portion 16 forming a base of the column body 15. And have.
The base portion 16 is a portion grounded to the soil floor FL, and is composed of, for example, a rubber block body or the like.
The column main body 15 is a portion erected with respect to the base portion 16, and has a rod-shaped screw portion 15a and a tubular portion 15b into which the screw portion 15a is inserted.
A male screw is formed on the outer peripheral surface of the threaded portion 15a, and is engaged (screwed) with a female screw formed on the inner peripheral surface of the tubular portion 15b.

Then, when the screw portion 15a rotates forward, the screw portion 15a rises with respect to the tubular portion 15b, and the height of the column main body 15 increases. On the contrary, when the screw portion 15a rotates in the reverse direction, the screw portion 15a descends with respect to the tubular portion 15b, and the height of the column main body 15 decreases. In this way, the height of the bundle 13 including the support column body 15 can be adjusted by rotating the screw portion 15a.

When rotating the screw portion 15a, the screw top portion 17 provided at the upper end portion of the screw portion 15a is operated (rotated) by a tool (for example, a screwdriver or a plug wrench). That is, the screw top portion 17 corresponds to the operated portion provided on the upper portion of the bundle 13, and is a portion operated when the height of the bundle 13 is changed.

The receiving portion 14 is made of an upward C-shaped steel material provided at an upper portion of the bundle 13, more specifically, at an upper position of the cylindrical portion 15b. As shown in FIG. 3, the receiving portion 14 has a bottom wall 14a and a pair of side walls 14b erected from both side ends of the bottom wall. FIG. 3 is a diagram showing a state immediately before assembling the large pull 12 to the bundle 13. Note that FIG. 3 is a diagram showing a cross section in which the normal direction is the X direction and passes through the operation hole 12a described later.

The bottom wall 14a is provided with a through hole 14c, and as shown in FIG. 3, the upper end portion of the screw portion 15a is inserted into the through hole 14c. In other words, the screw top 17 penetrates the bottom wall 14a of the receiving portion 14 and projects upward from the bottom wall 14a. As shown in FIG. 3, a nut (hereinafter referred to as a lower nut 18) is welded to the lower surface of the bottom wall 14a. The lower nut 18 is fixed to the bottom wall 14a so that the hole and the through hole 14c of the bottom wall 14a communicate with each other. The upper end portion of the screw portion 15a is arranged so as to be screwed with the lower nut 18 and penetrate the bottom wall 14a.

The pair of side walls 14b are arranged apart from each other and extend upward from each other. Each side wall 14b has some elasticity and can be bent so that the distance between the upper end portions of the side wall 14b (in other words, the upper end opening of the receiving portion 14) is widened. Further, an engaging projection 14d projecting inward (the side on which the paired side wall 14b is located) is formed at a position halfway in the extending direction of each side wall 14b.

Then, as shown in FIGS. 2 and 3, the receiving portion 14 fits into the large pull 12 by inserting the large pull 12 into the space surrounded by the bottom wall 14a and the pair of side walls 14b. More specifically, as shown in FIG. 3, the large pull 12 enters the space inside the receiving portion 14 from above the receiving portion 14. Further, the distance (horizontal width) between the pair of side walls 14b in the receiving portion 14 substantially coincides with the distance (horizontal width) between both side portions of the large pulling portion 12. Therefore, when the large pull 12 is inserted into the receiving portion 14, the side wall 14b bends so that the upper end opening of the receiving portion 14 widens. As a result, the large pull 12 smoothly enters the receiving portion 14.

As described above, the bundle 13 is assembled to the large pull 12 by inserting the large pull 12 into the receiving portion 14. Further, each of the both side portions of the large pull 12 is formed with an engaging recess 12b recessed inward (the side on which the paired side portions are located). In the state where the bundle 13 is assembled to the large pull 12, as shown in FIG. 8, the side wall 14b of the receiving portion 14 is located adjacent to each of the both side portions of the large pull 12, and the engaging projection 14d is engaged. It enters (engages) into the engaging recess 12b facing the recess 12b. By engaging the engaging protrusion 14d with the engaging recess 12b in this way, it is possible to stabilize the fitting state of the large pull 12 and the receiving portion 14 (in other words, the assembled state of the bundle 13 with respect to the large pull 12). It will be possible.

Further, in the state where the bundle 13 is assembled to the large pull 12, as shown in FIG. 8, the upper end portion of the screw portion 15a including the screw top portion 17 penetrates the bottom of the large pull 12 and is larger than the bottom of the large pull 12. It protrudes upward. Specifically, as shown in FIG. 3, a hole (hereinafter referred to as a screw insertion hole 12c) penetrating the large pull 12 is formed at the bottom of the portion of the large pull 12 to which the bundle 13 is assembled. .. Further, in the bundle 13, the upper end portion of the screw portion 15a is arranged so as to penetrate the bottom wall 14a of the receiving portion 14.

Then, when the bundle 13 is fitted to the receiving portion 14 in order to assemble the bundle 13 to the large pull 12, the upper end portion of the screw portion 15a is inserted into the screw insertion hole 12c. As a result, the bundle 13 is assembled to the large pull 12 so that the upper end portion of the screw portion 15a including the screw top 17 penetrates the bottom of the large pull 12.

A nut with a washer (hereinafter referred to as an upper nut 19) is attached to the upper end of the screw portion 15a penetrating the bottom of the large pull 12 as shown in FIGS. 1 and 8. By attaching the upper nut 19 to the upper end portion of the screw portion 15a, the bundle 13 assembled to the large pull 12 is fixed to the large pull 12.

Further, as shown in FIG. 3, a portion of the upper wall of the large pull 12 facing the screw insertion hole 12c, in other words, directly above the upper end portion of the screw portion 15a in a state where the bundle 13 is assembled to the large pull 12. A circular hole-shaped operation hole 12a is provided in the portion at the position. The operation hole 12a is formed so that its diameter is larger than the outer diameter of the screw top 17. More specifically, the diameter of the operation hole 12a is slightly larger than the outermost diameter of the upper nut 19 (the outer diameter of the washer portion).

Then, when the screw top 17 is operated, it is operated through the operation hole 12a. That is, when changing the height of the bundle 13 assembled to the large pull 12, the screw top 17 that penetrates the bottom of the large pull 12 through the screw insertion hole 12c is operated. At this time, the screw top 17 is accessed through the operation hole 12a to operate the screw top 17.

When the screw top 17 is operated in the above manner, the height of the bundle 13 is changed. Then, when the height of the bundle 13 changes, the vertical position of the large pull 12 changes accordingly. That is, by operating the screw top portion 17, the assembly position of the bundle 13 with respect to the large pull 12 is changed in the vertical direction. Here, the assembling position means the position of the portion of the bundle 13 that is assembled to the large pull 12 in the height direction (that is, the Z direction) of the bundle 13.

More specifically, while the height of the bundle 13 is changed by the operation of the screw top portion 17, the positions (relative positions) of the receiving portion 14 and the large pulling portion 12 with respect to the screw top portion 17 are welded to the lower surface of the receiving portion 14. It is held by the lower nut 18. Therefore, when the height of the bundle 13 changes, the assembling position of the bundle 13 with respect to the large pull 12 (specifically, the position of the receiving portion 14) moves up and down, and the vertical position of the large pull 12 is adjusted accordingly. Will be done.

<< Floor construction method >>
Next, the construction method of the floor 10 according to this embodiment will be described. In the following, a case where the floor 10 having the structure shown in FIG. 1 is constructed will be described as an example.

[Assembly process of underfloor unit 20]
In constructing the floor 10 according to the present embodiment, first, the bundle 13 is assembled to the large pull 12 to form the underfloor unit 20. The assembly of the large pull 12 and the bundle 13 may be performed at the factory, and then the completed underfloor unit 20 may be carried to the construction site of the building 1, or the assembly of the large pull 12 and the bundle 13 may be carried out in the building 1. It may be done at the construction site.

[Arrangement process of underfloor unit 20]
Then, each underfloor unit 20 is arranged in the soil floor FL. Specifically, as shown in FIGS. 5 and 6, the end portion 12d of the large pull 12 is placed on the holder 40 provided on the rising portion R of the foundation B of the building 1 for each underfloor unit 20. By doing so, the underfloor unit 20 is arranged in a state where the large pull 12 is erected with respect to the rising portion R.
As shown in FIGS. 5 and 6, a pair of holders 40 are provided at positions separated from the rising portion R of the foundation B in the X direction.

The holder 40 includes a plate member 41 and a height adjusting portion 42. Specifically, the plate members 41 are provided apart in the Y direction, and are L-shaped first plates 41A and second plates 41B along the upper surface and side surfaces of the rising portion R, and the first plate 41A and the first plate. It has a mounting surface portion 41C that connects the two plates 41B and supports the end portion 12d of the large pull 12.
The height adjusting portion 42 is provided on the first plate 41A, is provided on the first height adjusting portion 42A for adjusting the distance between the first plate 41A and the upper surface of the rising portion R, and is provided on the second plate 41B. It has a second height adjusting portion 42B for adjusting the distance between the plate 41B and the upper surface of the rising portion R.
The first height adjusting portion 42A and the second height adjusting portion 42B have bolts, and the vertical positions of the first plate 41A and the second plate 41B can be adjusted by rotating the bolts. .. The position of the mounting surface portion 41C also changes with the first plate 41A and the second plate 41B, whereby the height of the large pull 12 supported by the mounting surface portion 41C can be adjusted.
In the present embodiment, the holder 40 is preliminarily adjusted to a height at which the base portion 16 of the bundle 13 touches the soil floor FL.

As described above, a plurality of underfloor units 20 are arranged with respect to the soil floor FL. At this time, by arranging the large pull 12 of each underfloor unit 20 so as to be erected on the holder 40, each underfloor unit 20 can be arranged in parallel along the X direction.
In this way, by erection of the large pull 12 on the holder 40 and arranging the underfloor unit 20, the underfloor unit 20 can be easily positioned in the soil floor FL.

[Floor panel 11 placement process]
Next, as shown in FIG. 7, a plurality of floor panels 11 are arranged on the underfloor unit 20.
Specifically, as shown in FIG. 7, a plurality of floor panels 11 (four floor panels 11 in FIG. 7) are arranged on the large pull 12 so as to be arranged in the X direction.
To be described in detail, each floor panel 11 has a substantially rectangular shape in a plan view, and the long sides thereof are arranged so as to overlap the long sides of the adjacent floor panels 11.
Further, one of the large pulls 12 (hereinafter referred to as the central large pull 12) has a central portion of each floor panel 11 in the Y direction. The end portion of the floor panel 11 in the Y direction is mounted on the remaining large pull 12 (hereinafter referred to as the large pull 12 on the end side).

In the arrangement of the floor panels 11 fixed to the three large pulls 12, as shown in FIG. 7, one end of each large pull 12 in the X direction is located on the one end side in the X direction in the panel group. It protrudes slightly from the floor panel 11 to be used. However, the present invention is not limited to this, and the edges of the floor panel 11 and the large pull 12 in the X direction may be aligned.

[Step of changing the assembly position of the bundle 13 with respect to the large pull 12]
Next, a step of changing the assembly position of the bundle 13 with respect to the large pull 12 will be described.
As shown in FIG. 7, an opening is provided in the upper position of the operation hole 12a in the portion of the floor panel 11 placed on the large pull 12.

More specifically, the portion of the floor panel 11 resting on the central pull 12 (that is, the central portion of the floor panel 11 in the Y direction) has a notch 11a as an opening as shown in FIG. Is formed. The notch 11a is formed by cutting out a side edge (one end side edge in the X direction) of the central portion of the floor panel 11 in the Y direction in a substantially triangular shape. Further, as shown in FIGS. 7 and 8, the notch 11a is provided at a position directly above the operation hole 12a formed in the central large pull 12. Further, the notch 11a is formed so as to be slightly larger than the opening size of the operation hole 12a and the edge of the notch 11a is located outside the edge of the operation hole 12a.

Further, as shown in FIG. 7, a notch 11b as an opening is formed in the portion of the floor panel 11 resting on the large pull 12 on the end side (that is, the end portion of the floor panel 11 in the X direction). Has been done. As shown in FIG. 7, the notch 11b is formed by chamfering the corners of two floor panels 11 adjacent to each other in the X direction in a substantially triangular shape. Further, the notch 11b is provided at a position directly above the operation hole 12a formed in the large pull 12 on the end side. Further, the notch 11b is provided so as to be slightly larger than the opening size of the operation hole 12a and the outer edge of the notch 11b is located outside the edge of the operation hole 12a. The positional relationship between the notch 11b and the operation hole 12a is substantially the same as the positional relationship between the notch 11a and the operation hole 12a (that is, the positional relationship shown in FIG. 8).

As described above, among the parts of the floor panel 11 resting on the large pull 12, the portion directly above the screw portion 15a of the bundle 13 assembled to the large pull 12 is cut as an opening. Notches 11a and 11b are provided. That is, the top of the screw portion 15a (that is, the screw top 17) penetrating the bottom of the large pull 12 is exposed to the space above the floor panel 11 through the operation holes 12a and the notches 11a and 11b. Therefore, the screw top 17 can be operated through the notches 11a and 11b and the operation hole 12a. With such a configuration, it is possible to access the screw top 17 from above the floor panel 11 through the notches 11a and 11b and the operation hole 12a to operate the screw top 17.

That is, after arranging the floor panel 11 on the underfloor unit 20, the vertical position (that is, the floor level) of the large pull 12 is adjusted. Specifically, each bundle 13 operates the screw top 17 of the screw portion 15a provided on the column main body 15 to change the height of the bundle 13. At this time, the screw top 17 is operated through the notches 11a and 11b formed above the screw top 17 in the portion of the floor panel 11 placed on the large pull 12.

More specifically, in a state where the bundle 13 is assembled to the large pull 12, the operation hole 12a formed in the upper wall of the large pull 12 and the floor panel 11 are formed at a position directly above the screw top portion 17. Notches 11a and 11b are provided. That is, the screw top 17 is exposed to the space above the floor panel 11. As a result, the screw top 17 can be operated from above the floor panel 11 through the operation holes 12a and the notches 11a and 11b. More specifically, the operator (that is, the floor builder) inserts a tool through the operation holes 12a and the notches 11a and 11b, and operates the screw top 17 with the tool to rotate the screw portion 15a.

Then, the height of the bundle 13 is changed by the rotation of the screw portion 15a, and the vertical position (floor level) of the large pull 12 is adjusted accordingly. When the vertical position of the large pull 12 finally reaches the desired position, the operator screwes the upper nut 19 into the screw top 17 through the operation hole 12a and the notches 11a and 11b. As a result, the bundle 13 is fixed to the large pull 12 in a state where the large pull 12 is arranged at a desired height.

After that, the subsequent steps including the installation of decorative materials are carried out. Then, the floor 10 and the underfloor unit 20 are completed by carrying out a series of steps related to the construction of the floor 10, and the construction work of the floor 10 is completed by this.

<< Construction method of building and floor according to the modified example >>
Next, the construction method of the building and the floor according to the modified example will be described. In the modified example, the structure of the large pull corresponding to the fixing material, the structure of the bundle corresponding to the support column, and the method of assembling the bundle in the large pull are different from the above-described embodiment. In addition, since the modification is common to the above embodiment in points other than the above, the differences from the above embodiment will be mainly described below.

The large pull (hereinafter, large pull 30) according to the modified example is a prismatic member, and is made of, for example, wood or a steel pipe. A plurality of floor panels 11 are fixed to the upper surface of the large pull 30 along the X direction. Further, the large pull 30 is formed with circular hole-shaped insertion holes 30a at substantially regular intervals in the X direction.

Further, as shown in FIG. 9, notches 11a and 11b (not shown in FIG. 9) are located in the portions of the floor panels 11 directly above the insertion hole 30a among the portions placed on the large pull 30. For the convenience of the above, only the notch 11a is described). The notches 11a and 11b are openings corresponding to the notches 11a and 11b in the present embodiment, and are formed at substantially the same positions as the formation positions in the present embodiment. A circular hole may be formed as an opening instead of the notches 11a and 11b. The notches 11a and 11b are formed so that their outer edges are located outside the edges of the insertion holes 30a. FIG. 9 is a diagram showing a procedure for assembling the bundle 32 to the large pull 30 in the modified example. Note that FIG. 9 corresponds to the cross section shown in FIG.

Further, as shown in FIG. 9, a cylindrical part (hereinafter referred to as a screw holding member 31) is attached to the lower surface of the large pull 30. The screw holding member 31 is fixed to the lower surface of the large pull 30 with its internal space communicating with the insertion hole 30a. The inner diameter of the screw holding member 31 is slightly smaller than the diameter of the insertion hole 30a, and a screw thread is formed on the inner peripheral surface of the screw holding member 31.

The bundle according to the modified example (hereinafter referred to as bundle 32) is divided into a plurality of parts, and is configured by assembling these parts. Specifically, the bundle 32 has a support column body 33 and a base portion 36. The strut body 33 and the base portion 36 are separable as shown in FIG. 9, and are connected when the bundle 32 is assembled to the large pull 30.

The strut body 33 is a shaft component having a thread formed on a part of the outer peripheral surface, and as shown in FIG. 9, three portions having different shapes (hereinafter, small diameter screw portion 33a, medium diameter portion 33b, and large diameter portion 33b). It has a diameter screw portion 33c). The small diameter screw portion 33a has the smallest diameter in the column main body 33 and is located at the lower end portion of the column main body 33. The medium-diameter portion 33b has a larger diameter than the small-diameter screw portion 33a and a smaller diameter than the large-diameter screw portion 33c, and is located in the central portion of the column main body 33. The large-diameter screw portion 33c has the largest diameter in the column main body 33 and is located at the upper end portion of the column main body 33. The outer peripheral surfaces of the small-diameter screw portion 33a and the large-diameter screw portion 33c are formed with threads, while the outer peripheral surfaces of the medium-diameter portion 33b are flat surfaces (surfaces on which the threads are not formed). There is.

Further, the screw thread formed on the outer peripheral surface of the large-diameter screw portion 33c can be engaged (screwed) with the screw thread formed on the inner peripheral surface of the screw holding member 31. Then, the column main body 33 moves downward when the large-diameter screw portion 33c is rotated in the forward direction with the large-diameter screw portion 33c inserted in the screw holding member 31. Further, when the support column body 33 moves downward, the support column body 33 eventually protrudes from the lower end opening of the screw holding member 31. The amount of protrusion of the column main body 33 from the lower end opening of the screw holding member 31 can be adjusted by the moving direction and the moving amount of the column main body 33.

Further, as shown in FIG. 9, a shaft top portion 35 as an operated portion is provided at the upper end portion of the support column main body 33. When the shaft top portion 35 is operated with the large-diameter screw portion 33c inserted into the screw holding member 31, the column main body 33 rotates and moves in the vertical direction.

As shown in FIG. 9, the base portion 36 has a substantially truncated cone-shaped ground contact portion 36a and an upright portion 36b erected upward from the upper end of the ground contact portion 36a. The grounding portion 36a forms the lower end portion of the bundle 32 and is grounded on the soil floor FL. The upright portion 36b has a substantially cylindrical shape, and a screw thread is formed on the outer peripheral surface thereof. The outer diameter of the upright portion 36b is substantially the same as the inner diameter of the screw holding member 31.

Further, at the stage of starting to assemble the bundle 32 with respect to the large pull 30, as shown in FIG. 9, the upright portion 36b has entered the lower region of the internal space of the screw holding member 31. In this state, the screw thread formed on the outer peripheral surface of the upright portion 36b and the screw thread formed on the inner peripheral surface of the screw holding member 31 are screwed together. When the base portion 36 rotates in the forward direction with respect to the screw holding member 31, the upright portion 36b moves in the direction in which the upright portion 36b enters the screw holding member 31 (that is, upward). On the contrary, when the base portion 36 rotates in the opposite direction to the screw holding member 31, the upright portion 36b moves in a direction (that is, downward) away from the screw holding member 31.

Further, a through hole penetrating the base portion 36 is provided in a substantially central portion of the base portion 36. A small diameter screw portion 33a is inserted into this through hole as shown in FIG. 10 when assembling the bundle 32 to the large pull 30. A thread is formed on the inner peripheral surface of the through hole, and this thread engages (screws) with the thread of the small diameter screw portion 33a. FIG. 10 is a diagram showing a state in which the assembly position of the bundle 32 is adjusted in the modified example, and shows the same cross section as in FIG.

Then, when the strut body 33 rotates in the forward direction with the small diameter screw portion 33a approaching the through hole of the base portion 36, the small diameter screw portion 33a enters the through hole, and as a result, the result. The support column body 33 and the base portion 36 are connected to each other.

Next, a procedure for assembling the bundle 32 to the above-mentioned large pull 30 and adjusting the vertical position of the large pull 30 will be described. At the stage of starting to assemble the bundle 32 to the large pull 30, as shown in FIG. 9, the upright portion 36b has entered the lower part of the internal space of the screw holding member 31, and the screw thread of the upright portion 36b and the screw holding member 31 have entered. It is screwed with the screw thread of. In such a state, the support column main body 33 is inserted from above the floor panel 11 into each insertion hole 30a formed in the large pull 30. Here, in the floor panel 11 placed on the large pull 30, notches 11a and 11b larger than the insertion hole 30a are formed in the portion located above the insertion hole 30a. As a result, the column main body 33 is smoothly inserted into the insertion hole 30a.

When the support column body 33 is inserted into the insertion hole 30a, the small-diameter screw portion 33a enters the screw holding member 31 and eventually reaches the ground contact portion 36a of the base portion 36 engaged with the screw holding member 31. After that, when the worker (that is, the floor builder) operates the shaft top portion 35 to rotate the column main body 33 in the forward direction, the small diameter screw portion 33a enters the through hole formed in the base portion 36 and the penetration thereof. The thread formed on the inner peripheral surface of the hole and the thread formed on the outer peripheral surface of the small-diameter threaded portion 33a are screwed together. Further, when the column main body 33 rotates in the forward direction in a state where the thread of the small diameter screw portion 33a and the thread of the above-mentioned through hole are screwed together, the base portion 36 rotates integrally. That is, the base portion 36 rotates in the forward direction with respect to the screw holding member 31, and as a result, the upright portion 36b of the base portion 36 further enters the screw holding member 31.

When the operator further operates the shaft top portion 35 to continue rotating the column main body 33 in the forward direction, the step between the small diameter screw portion 33a and the medium diameter portion 33b eventually comes into contact with the upper end surface of the upright portion 36b. The small diameter screw portion 33a enters the through hole of the base portion 36. In that state, when the operator operates the shaft top portion 35 to rotate the support column body 33 in the forward direction (for easy understanding, retighten), the support column body 33 and the base portion 36 are connected and integrated as a bundle 32. Will come to do.

By operating the shaft top portion 35 in the direction opposite to the direction of the operation performed up to that point, the operator reverses the support column main body 33 and the base portion 36 integrated as the bundle 32 with respect to the screw holding member 31. Rotate in the direction. As a result, the upright portion 36b of the base portion 36 fitted in the screw holding member 31 moves downward, and eventually goes out of the screw holding member 31 and comes off from the screw holding member 31. At this time, the column main body 33 moves integrally with the base portion 36 in a state of being fixed to the base portion 36, and specifically, the small diameter screw portion 33a and the medium diameter portion 33b are inside the through hole of the screw holding member 31. Pass through. Then, the column main body 33 moves to a position where the screw thread of the large-diameter screw portion 33c and the screw thread formed in the through hole of the screw holding member 31 are screwed together. By the above procedure, the bundle 32 is assembled to the large pull 30.

After that, the operator continues to operate the shaft top portion 35 by using a tool (specifically, an impact driver (not shown) to which the jig T shown in FIG. 10 is attached). The jig T has a bottomed tubular shape, and a fitting protrusion Ta is formed so as to protrude from the bottom of the internal space of the jig T. The fitting protrusion Ta is a rod-shaped wrench, and when the shaft top portion 35 is inserted into the jig T, it is fitted into the fitting hole 34 formed on the upper end surface of the shaft top portion 35. The cross-sectional shape of the fitting protrusion Ta and the opening shape of the fitting hole 34 can be arbitrarily set as long as they correspond to each other, and may be, for example, circular, square, or hexagonal.

As shown in FIG. 10, the operator inserts the upper end portion of the support column body 33 into the jig T, and fits the fitting protrusion Ta of the jig T into the fitting hole 34 of the shaft top portion 35. When the impact driver is operated in such a state, the column main body 33 rotates forward with respect to the screw holding member 31 and moves downward together with the base portion 36. As a result, the base portion 36 descends to a position where the ground contact portion 36a touches the soil floor FL.

When the operator continues to operate the shaft top portion 35 with the impact driver, it continues to descend with respect to the support column body 33 and the large pull 30, and the amount of protrusion of the column body 33 from the screw holding member 31 gradually increases. As a result, the assembling position of the bundle 32 with respect to the large pull 30 changes, and the vertical position of the large pull 30 is adjusted accordingly (specifically, the large pull 30 gradually separates from the soil floor FL).

As shown in FIG. 10, the operator continues to operate the shaft top portion 35 until the tip of the jig T is locked to the edge of the insertion hole 30a in the large pull 30. As a result, the vertical position of the large pull 30 is finally the position shown in FIG. 10 (that is, the position when the tip of the jig T is locked to the edge of the insertion hole 30a in the large pull 30). , Hereinafter referred to as "final adjustment position").

In the modified example, when the shaft top portion 35 is operated to adjust the vertical position of the large pull 30, it is formed in the upper position of the insertion hole 30a among the portions placed on the large pull 30 on the floor panel 11. The shaft top 35 is operated through the cutouts 11a and 11b. This makes it possible to access the shaft top portion 35 from above the floor panel 11 through the notches 11a and 11b and operate the shaft top portion 35. With such a configuration, in the modified example, even when the floor panel 11 is fixed on the large pull 30, the vertical position of the large pull 30 can be easily adjusted.

Further, in the modified example, when the shaft top portion 35 is operated, the jig T shown in FIG. 10 is used for the operation. Then, the shaft top portion 35 is continuously operated until the tip of the jig T is locked to the edge of the insertion hole 30a in the large pull 30. As a result, the amount of protrusion of the column main body 33 from the screw holding member 31 (in other words, the assembly position of the bundle 32 with respect to the large pull 30) becomes a preset amount, and the vertical position of the large pull 30 is a uniform position, specifically. Is adjusted to the final adjustment position. As a result, when assembling a plurality of bundles 32 to the large pull 30, it becomes possible to easily align the assembling positions of the bundles 32.

<Other embodiments>
The present invention is not limited to the above embodiment.
For example, the opening of the floor panel 11 is not limited to the notches 11a and 11b. Specifically, even if a circular hole 11c (an example of a hole) is formed as shown in FIG. 11 instead of the notch 11a and 11b at the position where the notch 11a and 11b are formed in FIG. good. The circular holes 11c are provided one by one at a position directly above the operation hole 12a formed in the large pull 12, and have a diameter slightly larger than the diameter of the operation hole 12a. By providing such a circular hole 11c, the top portion (screw top portion 17) of the screw portion 15a penetrating the bottom of the large pull 12 is exposed to the space above the floor panel 11. .. As a result, even in the configuration shown in FIG. 2B, the screw top 17 can be accessed from above the floor panel 11 through the circular hole 11c and the operation hole 12a to operate the screw top 17.

Further, in the above embodiment, the vertical position of the receiving portion 14 of the bundle 13 is adjusted by operating the screw top portion 17 provided on the upper portion of the bundle 13, but the present invention is not limited to this. For example, it may be a mechanism for adjusting the vertical position of the receiving portion 14 by turning a nut body formed by connecting the lower nut 18 and the upper nut 19 attached to the screw portion 15a.

Further, in the above embodiment, the screw top 17 of the bundle 13 is operated through the operation hole 12a formed in the large pull 12, but the present invention is not limited to this. For example, the receiving portion 14 may hold a plurality of large pulls 12, and the screw top portion 17 of the bundle 13 may be operated from the gap between the plurality of large pulls 12 held by the receiving portion 14.
In such a case, it is not necessary to make a hole in the large pull 12 to form the operation hole 12a.

Further, the base portion 16 may be bonded to the soil floor FL by applying an adhesive to the lower surface thereof, or may be fixed by driving a fixing tool such as a nail from the base portion 16 toward the soil floor FL. ..

Further, in the above embodiment, the holder 40 may be removed from the rising portion R after adjusting the height of the bundle 13.
Further, the holder 40 may be fixed without being removed from the rising portion R. In this case, for example, an anchor bolt extending upward from the rising portion R may be provided, and the holder 40 may be fastened to the anchor bolt.
Further, the fastener 40 may be fixed to the rising portion R by driving a fixing tool such as a nail from the holding tool 40 toward the rising portion R.
Further, the holder 40 and the rising portion R may be fixed by an adhesive.
Further, in the above embodiment, the holder 40 is provided on the rising portion R to hold the large pull 12 by the holder 40, but the large pull 12 is directly held on the rising portion R without providing the holder 40. You may put it.

<Summary>
The main features of the floor construction method according to the present embodiment described above are as follows.

[1] The floor construction method according to the present embodiment is a large pull 12 (fixing material) that supports the floor panel 11 (panel material) constituting the floor 10 of the building 1, and a bundle 13 (post) that supports the large pull 12. 12) so that the upper part of the bundle 13 is exposed from the floor panel 11 after the step of arranging the underfloor unit 20 integrated with) in the soil floor FL (base portion) of the floor 10 and after arranging the underfloor unit 20. In order to adjust the step of arranging the floor panel 11 on the floor panel 11 and the vertical position of the large pull 12, the screw top 17 (operated part) provided on the upper part of the bundle 13 assembled to the large pull 12 is operated. The step of changing the assembly position of the bundle 13 with respect to the large pull 12 in the vertical direction is included. The operation of the screw top 17 for adjusting the vertical position of the large pull 12 is performed through the opening provided at the upper position of the screw top 17 in the portion placed on the large pull 12 on the floor panel 11.
According to the above-mentioned floor construction method, the height of the bundle 13 can be adjusted after the floor panel 11 is placed on the underfloor unit 20 in which the large pull 12 supporting the floor panel 11 and the bundle 13 are integrated. can. At this time, since the height of the bundle 13 can be adjusted from above the floor panel 11, the vertical positions of the large pull 12 and the floor panel 11 can be easily adjusted. That is, according to the above-mentioned floor construction method, the labor of floor construction can be reduced.

[2] In the above floor construction method, the operation of the screw top 17 for adjusting the vertical position of the large pull 12 is the position above the screw top 17 among the parts placed on the large pull 12 on the floor panel 11. It is done through a hole or notch formed in.
By doing so, a hole (circular hole 11c) or a notch (notch 11a,) formed as an opening is located above the screw top 17 in the portion of the floor panel 11 placed on the large pull 12. A notch 11b) is provided, and when adjusting the vertical position of the large pull 12, the screw top 17 can be operated through this hole or the notch. This makes it even easier to operate the screw top 17 to adjust the vertical position of the large pull 12.

[3] In the above floor construction method, the bundle 13 has a receiving portion 14 to which the large pull 12 can be fitted and a screw top portion 17 that penetrates the bottom wall 14a of the receiving portion 14 and protrudes above the bottom wall 14a. The underfloor unit 20 is configured by fitting the large pull 12 to the receiving portion 14 of the bundle 13 so that the screw top 17 penetrates the bottom of the large pull 12.
By doing so, the bundle 13 can be easily assembled to the large pull 12 by fitting the large pull 12 to the receiving portion 14 of the bundle 13. This makes it possible to improve the workability of floor construction.

[4] In the above floor construction method, of the bundle 13, the support column main body 15 having the screw top 17 at the upper end is inserted into the insertion hole formed in the large pull 12, and the bundle 13 is assembled to the large pull 12. The operation of the screw top 17 for adjusting the vertical position of the large pull 12 is performed through the opening formed in the upper position of the insertion hole in the portion placed on the large pull 12 on the floor panel 11.
By doing so, the bundle 13 can be appropriately assembled to the large pull 12 by inserting the support column main body 15 of the bundle 13 into the insertion hole formed in the large pull 12.

[5] In the above floor construction method, a pair of holders 40 arranged apart from each other are installed on the rising portion R of the foundation B of the building 1, and the underfloor unit 20 is a pair of holders 40. Is arranged so as to hold each end portion 12d of the large pull 12 of the underfloor unit 20.
By doing so, when arranging the large pull 12, the large pull 12 can be easily positioned. That is, according to the above floor construction method, it becomes easy to arrange the underfloor unit 20.

1 Building 10 Floor 11 Floor panel (panel material)
11a Notch (opening)
11b Notch (opening)
11c circular hole (opening, hole)
12 Obiki (fixing material)
12a Operation hole 12b Engagement recess 12c Screw insertion hole 12d End 13 Bundle (strut)
14 Receiving part 14a Bottom wall 14b Side wall 14c Through hole 14d Engagement protrusion 15 Strut body 15a Threaded part 15b Cylindrical part 16 Base part 17 Screw top part (operated part)
18 Lower nut 19 Upper nut 20 Underfloor unit 30 Large pull (fixing material)
30a Insertion hole 31 Screw holding member 32 Bundle (strut)
33 Strut body 33a Small diameter screw part 33b Medium diameter part 33c Large diameter screw part 34 Fitting hole 35 Shaft top (operated part)
36 Base part 36a Grounding part 36b Standing part 40 Holder 41 Plate member 41A 1st plate 41B 2nd plate 41C Mounting surface part 42 Height adjusting part 42A 1st height adjusting part 42B 2nd height adjusting part B Basic FL Doma R Rising part T Jig Ta Fitting protrusion

Claims (5)

A process of arranging an underfloor unit that integrates a fixing material that supports a panel material constituting the floor of a building and a support column that supports the fixing material at the base portion of the floor.
After arranging the underfloor unit, a step of arranging the panel material on the fixing material so that the upper part of the column is exposed from the panel material, and a step of arranging the panel material.
Including a step of changing the height of the support column by operating a controlled portion provided on the upper portion of the support column assembled to the fixing material in order to adjust the vertical position of the fixing material.
The operation of the operated portion for adjusting the vertical position of the fixing material is performed through an opening provided at an upper position of the operated portion in the portion of the panel material placed on the fixing material. A floor construction method characterized by being struck. A process of arranging an underfloor unit that integrates a fixing material that supports a panel material constituting the floor of a building and a support column that supports the fixing material at the base portion of the floor.
After arranging the underfloor unit, a step of arranging the panel material on the fixing material so that the upper part of the column is exposed from the panel material, and a step of arranging the panel material.
In order to adjust the vertical position of the fixing material, the operated portion provided on the upper part of the support column attached to the fixing material is operated to change the assembly position of the support column with respect to the fixing material in the vertical direction. Including the process,
The operation of the operated portion for adjusting the vertical position of the fixing material is performed through an opening provided at an upper position of the operated portion in the portion of the panel material placed on the fixing material. We ,
The support column includes a receiving portion into which the fixing material can be fitted, and the operated portion that penetrates the bottom wall of the receiving portion and projects upward from the bottom wall.
The floor construction method is characterized in that the underfloor unit is configured by fitting the fixing material to the receiving portion of the support column so that the operated portion penetrates the bottom of the fixing material. The operation of the operated portion for adjusting the vertical position of the fixing material is a hole or a notch formed in the upper position of the operated portion in the portion of the panel material placed on the fixing material. The floor construction method according to claim 1 or 2 , wherein the floor construction method is performed through. Among the columns, the column body having the operated portion at the upper end is inserted into an insertion hole formed in the fixing material, and the column is assembled to the fixing material.
The operation of the operated portion for adjusting the vertical position of the fixing material is performed through the opening formed above the insertion hole in the portion of the panel material placed on the fixing material. The floor construction method according to any one of claims 1 to 3, wherein the floor construction method is characterized. A pair of holders arranged apart from each other are installed at the rising portion of the foundation of the building.
The item according to any one of claims 1 to 4, wherein the underfloor unit is arranged so that the pair of the holders hold the respective ends of the fixing members of the underfloor unit. The described floor construction method.

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