JP5297983B2 - Double floor structure of building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the double floor structure of a building excelling in renovating property and variability, easily removing floor backing panels. <P>SOLUTION: This double floor structure is constructed by erecting a plurality of support legs 2 at spaces on a floor base 1; laying frame plates 10, 11 between upper face plates 6 of the support legs 2 and placing the upper faces of the upper face plates 6 and frame plates 10, 11 to be continuous in grated shape in a plan view while adjusting the height level to form an installation part 18 for installing a partition wall 30; and fitting floor backing panels 20, 21 into square frames surrounded by the upper face plates 6 and the frame plates 10, 11. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a double floor structure mainly applied to buildings such as detached houses and apartment houses.

  Generally, as a double floor applied to buildings such as detached houses and apartment houses, a plurality of support legs are set up on a floor base such as dirt concrete and concrete slab at appropriate intervals, and the top plate of these support legs There is known a structure in which a plurality of floor foundation panels are laid across and supported at a predetermined height position floating from the floor base (for example, see Patent Document 1).

  In this type of double floor, when a partition wall is constructed, the partition wall is often erected on the floor foundation panel and its lower end is fixed to the floor foundation panel by screws or the like. In addition, after construction of the partition wall, floor finishing materials such as tatami mats and flooring are laid on the upper surface of the floor foundation panel.

JP-A-2005-290708

  However, in the above-mentioned double floor, the partition wall is placed and fixed on the floor base panel. Therefore, the floor base panel cannot be removed unless the partition wall is once removed. When replacing the panel or maintaining the wiring and piping provided in the underfloor space behind the floor base panel, there is a problem that a troublesome work is forced. In addition, the floor foundation panel is often fixed to the top plate of the support leg with screws, nails, etc., so that the floor foundation panel itself is troublesome to remove, and the floor foundation panel is easily damaged, There was a problem that repeated use at the time of reform became difficult.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a double floor structure in which the above-mentioned problems are solved and the floor base panel can be easily removed, and is excellent in renewability and variability.

In the double floor structure of the building of the present invention, a plurality of support legs 2 are erected on the floor base 1 with a space therebetween, and a frame plate 10 is interposed between the upper surface plates 6 of the support legs 2. 11 is installed to install the partition wall 30 by passing the upper surface plate 6 .. and the upper surface of the frame plate 10, 11,. In addition to the portion 18, the floor foundation panels 20, 21... Are fitted into a rectangular frame surrounded by the upper surface plate 6... And the frame plates 10, 11 .

Then, the first bolts 17... Inserted from above into the first bolt insertion holes 15... Of the frame plates 10, 11... Are screwed into the first nuts 9 embedded in the upper surface plates 6. The frame plates 10, 11.. Are detachably fixed to the upper surface plate 6... And to the second bolt insertion holes 22. The second base bolts 23... Inserted from above are screwed into the second nuts 16 embedded in the frame plates 10, 11. , 11... Detachably fixed to 11 .

  Specifically, in the upper surface plate 6, the first nuts 9 are embedded in a projecting portion 8 projecting from the lower portion of the peripheral end surface of the plate body portion 7 having a substantially square shape in plan view, and the frame plate 10, 11, the first bolt insertion holes 15 are formed in a pair of extending portions 13, 13 extending from the upper ends of both end surfaces of the plate body portion 12 having a substantially rectangular shape in plan view, and the overhanging portion 8. In the state where the extending portion 13 is placed and the first nut 9 and the first bolt insertion hole 15 are overlapped, the first bolt insertion hole 15 The first bolts 17 inserted from above are screwed into the first nuts 9 and the lower portions of both side surfaces of the plate main body 12 having a substantially rectangular shape in plan view in the frame plates 10 and 11. The second nuts 16 are attached to a pair of projecting portions 14 and 14 projecting from the inside of the rectangular frame. The floor base panels 20 and 21 having a substantially square shape in plan view or a substantially rectangular shape in plan view are formed with the second bolt insertion holes 22. In the state where the peripheral ends of the floor foundation panels 20, 21... Are placed and the second nuts 16 .. and the second bolt insertion holes 22. The second bolts 23... Inserted from above into the insertion holes 22... Are screwed into the second nuts 16.

  Further, in the frame plate 55 located at the boundary portion between the floor foundation panel 20, 21 for laying the thin floor finish 51a and the floor foundation panel 20, 21 for laying the thick floor finish 51b, The height level of the upper surface of the projecting portion 14 projecting into the rectangular frame from the lower portion of one side surface of the plate body portion 12 having a substantially rectangular shape in plan view, and the projecting portion 14 projecting into the rectangular frame from the lower portion of the other side surface. The height level of the upper surface is made different so that the height level of the upper surface of the thin-walled floor finish material 51a and the height level of the upper surface of the thick-walled floor finish material 51b are aligned.

  Further, the upper surface plates 6 and the frame plates 10 and 11 are arranged along a reference line P corresponding to a reference module of the building.

  Furthermore, the upper end portion of the partition wall 30 installed at the installation site 18 is stretched and fixed to the ceiling surface 50.

  In the double floor structure of this invention, so as to avoid the floor foundation panel, because the partition wall is installed at the installation site, the floor foundation panel can be removed without removing the partition wall, For this reason, replacement of the floor base panel or maintenance of wirings and piping provided in the under floor space on the back side of the floor base panel can be easily performed.

  In addition, the frame plate is fixed to the upper surface plate and the floor base panel is fixed to the frame plate by screwing the first and second bolts into the first and second nuts from above. The floor base panel and the frame plate can be easily attached and detached by the above operation, and not only the above replacement and maintenance, but also the workability at the time of renovation with the addition or partial removal of the double floor is good. Further, compared to fixing with screws or nails, damage to the floor base panel or frame plate can be reduced, so that it can be used repeatedly at the time of renovation, and costs can be reduced.

  In addition, by using frame plates having different upper surface height levels at the protruding portions on both sides of the plate main body portion, floor finishing materials having different thicknesses are laid on the floor base panel placed on the protruding portions of the frame plate. By absorbing the difference in the thickness of these floor finishing materials and aligning the height level of the upper surface, a simple structure that only changes the shape of the frame plate does not cause a step on the floor finishing surface. Can be.

  Furthermore, because the double floor is configured to correspond to the reference module, it can be easily renovated with the addition or removal of a double floor, and the floor base panel and frame plate can be reused. Thus, further cost reduction can be achieved.

  Furthermore, since the upper end part of the partition wall installed in the installation site is stretched and fixed to the ceiling surface, the partition wall can be easily constructed and rearranged without damaging the ceiling surface.

It is a perspective view which shows the construction state of the support leg in the double floor which concerns on one Embodiment of this invention. It is a perspective view which shows the construction state of a frame board. It is a perspective view which shows the construction state of a floor foundation panel. It is the allocation figure which looked at the floor ground surface from the upper part. It is a perspective view which shows the construction state of the base member of a partition wall. It is a perspective view which shows the construction state of a partition wall. It is a disassembled perspective view of a support leg. It is a longitudinal cross-sectional view which shows the attachment state of the frame board with respect to the upper surface board of a support leg. It is a perspective view of a frame board. It is a longitudinal cross-sectional view which shows the attachment state of the floor foundation panel with respect to a frame board. It is a longitudinal cross-sectional view which shows the attachment state of the base member of a partition wall. It is a longitudinal cross-sectional view of a tension mechanism. It is a principal part longitudinal cross-sectional view of the double floor which uses another frame board.

  Embodiments of the present invention will be described in detail with reference to the drawings. The double floor structure according to an embodiment of the present invention is applied to, for example, an ultra long-term apartment house (apartment) that requires renewability and variability. Hereinafter, this double floor structure will be described according to the construction procedure.

  First, as shown in FIG. 1, a plurality of support legs 2 are erected on a floor base 1 such as dirt concrete or concrete slab at appropriate intervals in the front-rear and left-right directions.

  As shown in FIGS. 7 and 8, the support leg 2 is attached to the bundle member 4 with the vibration isolation pedestal 3, the receiving member 5 attached to the upper end portion of the bundle member 4, and the upper surface of the receiving member 5. The upper surface plate 6 is provided. The male screw portion 4 a formed at the upper end portion of the bundle member 4 and the female screw portion 5 a formed at the central through hole portion of the receiving member 5 are screwed together. The upper surface plate 6 includes a plate body portion 7 having a substantially square shape in a plan view and a projecting portion 8 having a substantially rectangular frame shape in a plan view projecting laterally from a lower portion of the peripheral end surface thereof. A through hole 7a is formed in the central portion of the plate body portion 7 so as to face the engaging groove 4b formed in the upper end surface of the bundle member 4, and the first nut 9.・ Each is buried. The plate main body portion 7 of the upper surface plate 6 has a side dimension of about 80 mm.

  In this support leg 2, a rotary tool such as a screwdriver is inserted into the through hole 7 a of the upper surface plate 6 from above and engaged with the engagement groove 4 b of the bundle 4, and in this state, the rotary tool is operated to operate the bundle By rotating 4, the receiving member 5 and the upper surface plate 6 move up and down, and the height level of the upper surface of the upper surface plate 6 can be adjusted.

  Next, as shown in FIG. 2, the long frame plate 10 and the short frame plate 11 are passed between the upper plate 6 and the support leg 2 and the upper plate 6 and the frame plate. The upper surfaces of 10, 11,... Are continuously arranged in a lattice pattern in a plan view while aligning the height levels.

  As shown in FIG. 9, the long frame plate 10 and the short frame plate 11 include a plate body portion 12 having a substantially rectangular shape in plan view, and a pair of extending portions 13 extending from upper ends of both end surfaces of the plate body portion 12. , 13 and a pair of projecting portions 14, 14 projecting from lower portions on both side surfaces of the plate main body portion 12. And the 1st bolt insertion hole 15 is each formed in the center part of the extension parts 13 and 13, and several 2nd nuts 16 ... are embed | buried at intervals in the protrusion parts 14 and 14, respectively. ing. The plate body 12 of the long frame plate 10 has a length (including the extended portions 13 and 13) of about 823 mm and a width of about 80 mm. 12, the length dimension (including the extended portions 13 and 13) is about 520 mm, and the width dimension is about 80 mm.

  As shown in FIGS. 2 and 8, the long frame plate 10 and the short frame plate 11 are placed with the extended portions 13 and 13 on the extended portions 8 and 8 of the adjacent support legs 2 and 2. In the state where the first nuts 9, 9 and the first bolt insertion holes 15, 15 are overlapped, the first bolts 17, 17 inserted from above into the first bolt insertion holes 15, 15 are connected to the first nut 9. , 9 so as to be detachably fixed to the upper surface plates 6, 6 so as to straddle between the upper surface plates 6, 6 of the adjacent support legs 2, 2. In addition, about the elongate frame board 10, several places of the intermediate part may be supported by the support leg for a reinforcement (not shown), and you may prevent bending.

  In this state where the frame plates 10, 11,... Are passed between the upper surface plates 6,... Of the support legs 2 ...., the upper surfaces of the upper surface plates 6 .... and the frame plates 10, 11,. It is set as the installation site | part 18 for installing the partition wall 30 mentioned later continuously in planar view grid | lattice form, adjusting the height level. Further, in each rectangular frame surrounded by the upper surface plate 6... And the frame plates 10, 11..., Corner portions of the overhanging portions 8 of the upper surface plate 6. The projecting portions 14... Project in a rectangular frame shape while aligning the height levels of their upper surfaces to constitute a panel mounting frame 19.

  Subsequently, as shown in FIG. 3, large floor foundation panels 20... And small floor foundation panels 21... Are fitted in the respective square frames, and the peripheral ends thereof are panel mounting frames. It is placed on 19 ...

  The large floor foundation panel 20 is made of a particle board having a substantially rectangular shape in plan view, and a plurality of second bolt insertion holes 22 are formed at intervals at the peripheral end portion thereof. The small floor foundation panel 21 is made of a particle board having a substantially square shape in plan view, and a plurality of second bolt insertion holes 22... The large floor foundation panel 20 has a length dimension of about 823 mm and a width dimension of about 520 mm, and the small floor foundation panel 21 has a side dimension of about 520 mm.

  As shown in FIGS. 3 and 10, the large floor foundation panel 20 and the small floor foundation panel 21 are placed on the projecting portions 14 of the frame plates 10, 11,. In a state where the second nuts 16 ·· and the second bolt insertion holes 22 ·· are overlapped, the second bolts 23 ··· that are inserted from above into the second bolt insertion holes 22 ·· . Are fixed to the frame plates 10, 11.. In this way, in the state in which the floor foundation panels 20, 21,... Are fitted in the respective rectangular frames, the upper surfaces of the floor foundation panels 20, 21,. It is substantially flush with the upper surface, and constitutes a generally smooth floor base surface.

  FIG. 4 is an allocation diagram in which the floor base surface is viewed from above, and a line indicated by a one-dot chain line in the drawing indicates a reference line P corresponding to a building reference module (for example, a scale module). The distance L between the reference lines P and P is about 303 mm, which is about one third of the reference module. The upper surface plate 6 of the support leg 2 .. and the frame plates 10, 11... Have a distance between the center of the upper surface plate 6 .. and the center axis of the frame plates 10, 11. It is arranged in a grid pattern along the reference line P ··· so that it is twice or three times the interval L between them, and the floor foundation panels 20, 21 ·· Arranged to fit.

  Next, the partition wall 30 is appropriately installed along the installation site 18 which is the upper surface of the upper surface plate 6... And the frame plates 10, 11. That is, the partition wall 30 is installed so as to avoid the floor foundation panels 20, 21.

  When installing the partition wall 30, first, as shown in FIG. 5, the base member 31 is erected on the installation site 18. As shown in FIG. 11, the base member 31 includes a base body 33 formed by combining a plurality of frame units 32... And a tension mechanism 34 provided at the upper end of the base body 33.

  In the frame unit 32, a pair of upper and lower horizontal members 35 and 35 and a pair of left and right vertical members 36 and 36 are assembled in a rectangular frame shape, and an appropriate interval is provided in the vertical direction between the vertical members 36 and 36 in the frame. It is based on a structure where a plurality of crosspieces 37 are passed. In addition, as the frame unit 32... There are several types such as those having different width dimensions, door openings and storage openings, by selectively combining them in parallel, A base body 33 is formed. The base member 33 is formed with bolt insertion holes 35a in the upper cross member 35 on the upper side of the frame unit 32 in the vertical direction. In the material 35... And the crosspiece 37..., Wiring insertion holes 35 b, 37 b.

  As shown in FIG. 12, the tension mechanism 34 includes nuts 40 attached to the upper surfaces of the cross members 35 on the upper side of the frame units 32, corresponding to the bolt insertion holes 35a, The screw-up bolts 41 with the lower ends inserted into the bolt insertion holes 35a and the heads covered with the upper ends of the jack-up bolts 41 with the nuts 40 being screwed together. The head connecting material 42 and the jack-up nut 43... Are fitted to the connecting member 42, the jack-up nut 43... Screwed into the intermediate portion of the jack-up bolt 41. A compression spring 45... Mounted through a washer 44. An engagement groove 41 a is formed on the lower end surface of the jackup bolt 41, and a cushioning material 46 is attached to the upper surface of the head connecting material 42.

  And the base member 31 is fixed over the ceiling surface 50 and the installation site | part 18 by fixing the lower end part to the frame boards 10, 11, ... and extending and fixing the upper end part with respect to the ceiling surface 50. is set up. Specifically, when the lower end portion of the base member 31 is fixed, the lower cross member 35... Of the frame unit 32... Is fastened to the frame plates 10, 11. Also, when fixing the upper end of the base member 31, a rotating tool such as a screwdriver is inserted from below into the bolt insertion hole 35a of the cross member 35 on the upper side of the frame unit 32. By engaging with the engaging grooves 41a of the bolts 41, and operating the rotary tool in this state to move the jack-up bolts 41 while rotating, the head connecting member 42 is pushed up and its buffering is performed. The material 46 is pressed against the ceiling surface 50. Further, by rotating the jack-up nuts 43... To compress and compress the compression springs 45..., And constantly urging the head connecting material 42 upward, the tension fixing state is maintained well.

  As shown in FIG. 6, surface decorative materials 47 and 47 are attached to the front and back surfaces of the base member 31 erected on the installation site 18 in this manner, thereby completing the installation of the partition wall 30. Then, after installing the partition wall 30, the floor finishing material 51 such as tile, tatami mat, flooring, etc. is laid on the floor base surface (including the part where the partition wall 30 is not installed in the installation site 18). Is completed.

  In addition, on the floor base surface, for example, a thin floor finish material 51a such as flooring is laid in a portion corresponding to the living room, and a thick floor finish material 51b such as tatami mat is laid in a portion corresponding to the Japanese-style room. The floor finishing materials 51a and 51b having different thicknesses may be laid, but in this case, a step is generated at the boundary between the thin floor finishing material 51a and the thick floor finishing material 51b.

  Therefore, a frame plate 55... For eliminating such a step is prepared separately. As shown in FIG. 13, the frame plate 55 includes floor foundation panels 20, 21 for laying thin floor finish materials 51a, and floor foundation panels 20, 21, for laying thick floor finish materials 51b. The height level of the upper surface of the protruding portion 14 that protrudes from the lower portion of one side surface of the plate body portion 12 that is substantially rectangular in plan view, and the protruding portion that protrudes from the lower portion of the other side surface. The height level of the upper surface of 14 is in a different state. Therefore, by placing the peripheral edge portions of the floor foundation panels 20 and 21 on the projecting portions 14 and 14 of the frame plate 55, the height levels of the upper surfaces of the floor foundation panels 20 and 21 on both sides of the frame plate 55 are sandwiched. Is different, and absorbs the difference in the thickness of the floor finishing materials 51a, 51b,... Laid on the floor base panels 20, 21, and the height level of the upper surface of the thin floor finishing material 51a and the thick floor finishing material 51b. The height level of the upper surface is aligned so that no step is produced at these boundary portions.

  In the above-described double floor, the upper surfaces of the upper surface plate 6 and the frame plates 10, 11. 20, 21... Are fitted in a rectangular frame surrounded by the top plate 6, and the frame plates 10, 11, so that the floor foundation panels 20, 21. Therefore, it is possible to easily replace the floor foundation panels 20, 21... Or to maintain the wiring and piping provided in the floor space 60 under the floor foundation panels 20, 21. it can.

  Moreover, the first and second bolts 17, 23... Are fixed to the top plates 6... And the floor base panels 20, 21. . Is screwed into the first and second nuts 9, 16... From above, so that the floor base panels 20, 21... And the frame plates 10, 11. In addition to the above-mentioned replacement and maintenance, workability for renovation that involves the addition or removal of double floors, such as rearrangement of various equipment units such as unit baths and changes in floor plans, etc. Is also good. Also, compared to fixing with screws, nails, etc., damage to the floor base panels 20, 21... And the frame plates 10, 11,. be able to.

  Further, the top plate 6... And the frame plates 10, 11... Are arranged in a grid pattern along a reference line P corresponding to the reference module, and are placed under the floor so as to be accommodated in each grid-shaped square frame. The ground panels 20, 21... Are fitted, that is, the double floor is configured in accordance with the reference module, so that it is possible to easily change the arrangement of various equipment units, change the floor plan, etc. The floor base panels 20, 21... And the frame plates 10, 11, .. can be reused, and the cost can be further reduced.

  Furthermore, since the upper end portion of the partition wall 30 installed at the installation site 18 is stretched and fixed to the ceiling surface 50, the partition wall 30 can be easily constructed and rearranged without damaging the ceiling surface 50. be able to.

  The present invention is not limited to the above embodiment, and it is needless to say that many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, the double floor structure of the present invention can be applied not only to apartments but also to detached houses and apartments, as well as medical facilities and commercial facilities.

  1 ·· Floor base 2 ·· Support legs 6 ·· Top plate 7 ·· Plate body portion of upper plate, 8 ·· Overhang portion 9 ·· First nut 10, 10, 11, 55 ·· Frame Plate, 12... Plate body of frame plate, 13.. Extension part, 14 ... Projection part, 15 ... First bolt insertion hole, 16 ... Second nut, 17 ... First bolt, 18 .. Installation site, 20, 21 .. Floor base panel, 22 .. 2nd bolt insertion hole, 23 .. 2nd bolt, 30 .. Partition wall, 50 .. Ceiling surface, 51a. Material, 51b ... Thick floor finish, P ... Baseline

Claims (5)

A plurality of support legs (2) are erected on the floor base (1) at intervals, and a frame plate (10) (11) is interposed between the upper surface plates (6) of the support legs (2). ), And the upper surfaces of the upper surface plates (6) and the frame plates (10), (11),. ) In the rectangular frame surrounded by the upper surface plate (6) and the frame plate (10) (11), and the floor base panel (20). (21) a double floor structure of a building which is adapted fitted ..., first inserted through the top to the frame plate (10) (11) first bolt insertion hole (15) of · · · 1 bolts (17)... Are screwed into first nuts (9) embedded in the upper surface plate (6). ) .. is detachably fixed to the upper surface plate (6)... And is inserted from above into the second bolt insertion hole (22) of the floor base panel (20) (21). The second base bolts (23),... Are screwed into the second nuts (16), embedded in the frame plates (10), (11), so that the floor base panels (20), (21). .. A double floor structure of a building , wherein the frame plate (10) (11) is detachably fixed to the frame plate (10) (11) . In the upper surface plate (6), the first nuts (9) are embedded in a projecting portion (8) projecting from the lower portion of the peripheral end surface of the plate body portion (7) having a substantially square shape in plan view. In the plates (10) and (11), the first bolt insertion holes ( 15) are formed, and the extension portions (13) are placed on the overhang portions (8), so that the first nuts (9), and the first bolt insertion holes ( 15), with the first bolts (17), inserted from above into the first bolt insertion holes (15), are screwed into the first nuts (9),. In addition, in the frame plates (10) and (11), the rectangular shape is formed from the lower portions of both side surfaces of the plate body (12) having a substantially rectangular shape in plan view. The second nuts (16) are embedded in a pair of projecting portions (14), (14) projecting inward, and the floor base panel (20) (21) having a substantially square shape in plan view or a substantially rectangular shape in plan view. ), The second bolt insertion hole (22) is formed in the peripheral end portion thereof, and the peripheral end portion of the floor base panel (20) (21) is formed in the protruding portion (14). In a state where the second nuts (16) are overlapped with the second bolt insertion holes (22), from above to the second bolt insertion holes (22). The double floor structure of a building according to claim 1 , wherein the inserted second bolts (23) are screwed into the second nuts (16). Located at the boundary between the floor base panel (20) (21) for laying the thin floor finish (51a) and the floor base panel (20) (21) for laying the thick floor finish (51b) In the frame plate (55), the height level of the upper surface of the projecting portion (14) projecting into the rectangular frame from the lower portion of one side surface of the substantially rectangular plate body portion (12) in plan view, and the other The height level of the upper surface of the thin-walled floor finish (51a) is different from the height level of the upper surface of the protrusion (14) protruding from the lower part of the side surface into the square frame ( The double floor structure of a building according to claim 2 , wherein the height level of the upper surface in 51b) is made uniform. The upper plate (6) ... and the frame plate (10) (11) ..., correspond to building standards module reference line (P) to any one of claims 1 to 3 disposed along the .. Double floor structure of the building described . The double floor of the building according to any one of claims 1 to 4, wherein an upper end portion of the partition wall (30) installed at the installation site (18) is stretched and fixed to a ceiling surface (50). Construction.