JP5547904B2 - Steel pulling and floor construction method using the same - Google Patents

Description

  The present invention relates to a steel pulling that can be easily leveled and a floor construction method using the same.

  Conventionally, in an industrialized house, for example, a floor panel in which a floor panel is stretched on a wooden joist is placed on a steel pull, and the joist and the large pull are fixed with screws. (See Patent Documents 1 and 2 below).

  By the way, the large pull is supported by being fixed to a bundle or a foundation. As the bundle material, a material having a height adjusting function using a screw shaft or the like is generally used. Accordingly, the leveling of the pulling supported by the bundle can be relatively freely performed by changing the height of the bundle.

JP2007-15459A JP 2004-218260 A

  However, the level adjustment as described above cannot be performed freely for the large pull fixed on the foundation. Conventionally, it has been proposed to adjust the level by interposing a spacer or the like between the flooring and the overhang on the foundation, but there is room for further improvement because the adjustment fee is small and the workability is poor. there were.

  The present invention has been devised in view of the above-described problems, and is a steel pulling that can be freely and easily adjusted in level even when fixed on a foundation. The main purpose is to provide a floor construction method.

  The invention according to claim 1 of the present invention is a steel pulling, which is a lower member fixed to the base side, and is fitted to the lower member so as to be slidable in the vertical direction and is floored on the upper surface. An upper member capable of supporting a material, and the lower member includes at least a bottom plate portion attached to the foundation and a pair of rising pieces extending upward from both ends of the bottom plate portion, and The upper member includes an upper plate portion that forms the upper surface, and a pair of hanging pieces that extend downward from both ends of the upper plate portion and are superimposed on the pair of rising pieces of the lower member, respectively. The hanging piece and the rising piece are fixed to each other by a screw screwed into the overlapping portion from the side.

  According to a second aspect of the present invention, the lower member is a steel pulling according to the first aspect, wherein the lower member is made of groove-type steel with the groove portion facing upward.

  According to a third aspect of the present invention, the upper member is made of channel steel with a groove portion facing downward, and the hanging piece is extrapolated to each outer surface of the rising piece. The steel fork according to claim 1, wherein a through-hole for passing through is formed.

The invention according to claim 4 is a floor construction method using the steel pull according to any one of claims 1 to 3 , wherein the lower member is fixed to the upper surface of the foundation. A step of horizontally supporting the first pulling extending parallel to the lower member using a bundle material at a position other than the base, and overlapping the upper member on the lower member fixed to the base. Adjusting the overlapping margin between the hanging piece and the rising piece, adjusting the upper surface of the upper member to the same height as the upper surface of the first pulling, and the hanging piece after the adjusting step And the rising piece are fixed by screwing screws from the side to form a second large pull, and the flooring is straddled between the first large pull and the second large pull. And a flooring construction process for fixing by curling.

  The steel pulling of the present invention includes a lower member attached to a foundation, and an upper member that is slidably fitted to the lower member in a vertical direction and can support a flooring on the upper surface, The lower member includes a bottom plate portion fixed to the foundation and a pair of rising pieces extending upward from both ends of the bottom plate portion, while the upper member includes an upper plate portion that forms the upper surface, And a pair of hanging pieces extending downward from both ends of the upper plate portion and overlaid on the pair of rising pieces of the lower member.

  Then, the hanging piece and the rising piece are fixed by screws screwed from the side to form a large pull. Such large pulling is easy to change the upper surface height of the upper member steplessly and easily by changing the position of the upper member relative to the lower member and adjusting the overlap margin between the hanging piece and the rising piece on site. Can be adjusted. Such a large drawing can exhibit a leveling function by the large drawing itself in a very limited narrow space between the floor material and the foundation on the first floor. In addition, even if there is unevenness in the foundation, it can be absorbed by the level adjustment function, which can greatly improve the workability and improve the finishing accuracy of the floor. Furthermore, since the screw is screwed in from the side, it does not protrude from the height of the upper surface of the upper member, so that interference with the flooring can be prevented.

  Further, in the floor construction method according to claim 4, the overlap margin between the hanging piece of the upper member and the rising piece of the lower member is adjusted, and the upper surface of the upper member is replaced with the upper surface of another adjacent large pulling. Level adjustment can be easily performed by including an adjusting step for adjusting to the same height and a fixing step for fixing the hanging piece and the rising piece by screwing from the side after the adjusting step. An efficient horizontal floor can be constructed.

It is a disassembled perspective view of a large drawing showing an embodiment of the present invention. It is an assembly drawing of FIG. It is sectional drawing which shows the use condition of the large drawing of this embodiment. It is a floor plan of the floor foundation in which the draw of this embodiment is used. It is the AA sectional view. It is a perspective view of the floor foundation | substrate containing 1st and 2nd large drawing. It is sectional drawing of the said AA equivalent position explaining the construction method of a floor. It is a downturn figure after laying a floor panel.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the steel pulling 1 of the present embodiment includes a lower member 2 fixed to the base F, and a floor member on the upper surface fixed to the lower member 2. And an upper member 3 that can support the floor panel P.

  In the present embodiment, the lower member 2 is made of a long groove-shaped steel with the groove portion facing upward, and the bottom plate portion 2a attached to the foundation F and the widthwise direction of the bottom plate portion 2a upward from both ends. It is composed of a pair of flange-like rising pieces 2b and 2b extending vertically. Bolt holes 2h are provided in the bottom plate portion 2a at positions corresponding to anchor bolts B protruding from the upper surface of the foundation F, for example.

  In the present embodiment, the upper member 3 is made of channel steel with the groove portion facing downward, and includes an upper plate portion 3a that forms an upper surface on which the floor panel P is placed, and downward from both ends of the upper plate portion 3a. It has a pair of drooping pieces 3b and 3b extending vertically.

  In the present embodiment, the groove width W1 of the upper member 3 is formed slightly larger than the width W2 between the rising pieces 2b, 2b of the lower member 2. Thereby, as shown in FIG. 2, each hanging piece 3 b of the upper member 3 can be fitted to the rising piece 2 b of the lower member 2 from the outside and can be extrapolated. It is slidably fitted in the direction. That is, the drooping piece 3b and the rising piece 2b are overlapped with each other with an adjustable overlap L in the height direction.

  Furthermore, in this embodiment, the penetrating pieces 3b of the upper member 3 are formed with through holes 3h at a predetermined pitch in the length direction. The through hole 3h is desirably formed close to the lower edge 3be side of the drooping piece 3b, for example. On the other hand, such a through hole is not formed in the rising piece 2 b of the lower member 2.

  Further, the lower member 2 and the upper member 3 are fixed by screwing screws 4 from the side into an overlapping portion 5 where the hanging piece 3b and the rising piece 2b overlap. The screw 4 is a drill screw, for example, and is inserted from the through hole 3h of the drooping piece 3b and penetrates the rising piece 2b of the lower member 2 by being screwed. Thereby, the lower member 2 and the upper member 3 are integrally fixed in a state in which they cannot move in the height direction.

  As is clear from the above, the lower member 2 and the upper member 3 change their positions in the height direction with respect to the lower member 2 in a state before being fixed with the screws 4, and By adjusting the overlap margin to L, the height of the upper surface can be adjusted steplessly and easily on site. Therefore, in the very limited narrow space between the floor panel P and the foundation F on the first floor, the leveling function can be exhibited by the draw 1 itself with a simple configuration. Therefore, even if the foundation F is uneven, this can be absorbed by the level matching function of the large draw 1, and the workability can be greatly improved and the finishing accuracy of the floor can be improved.

  Next, an embodiment of a floor construction method using such a steel pulling 1 will be described. First, FIG. 4 shows a plan view of the floor foundation of the first floor of an industrialized house in which the steel puller 1 of this embodiment is used, and FIG.

  The floor foundation includes a foundation F and a plurality of bundle members 7 erected in a grid shape at a predetermined module pitch on, for example, soil concrete D surrounded by the foundation F.

  The foundation F includes, for example, an outer foundation Fa disposed on the outer wall of a house and an inner foundation Fb having one end connected to the outer foundation Fa and extending through the interior of the house.

  Further, as shown in FIG. 5, the bundle member 7 is fixed on the soil concrete D and extends upward, and a screw screwed to the leg portion 7a so that the height can be adjusted up and down. A shaft portion 7b and a metal fitting 7c having a U-shaped cross section that is fixed to the upper end of the screw shaft portion 7b and can hold the first large pull 9 having a substantially pipe-shaped cross section in the present embodiment. .

  In the construction method of the present embodiment, first, a step of fixing the lower member 2 to the anchor bolt B protruding from the upper surface of the inner foundation Fb is performed. That is, as shown in FIGS. 3 and 5, the anchor bolt B is inserted into the bolt hole 2h of the bottom plate portion 2a, and the nut N is screwed onto the bolt shaft protruding from the bottom plate portion 2a. Thereby, the lower member 2 is attached on the inner foundation Fb. In addition, the lower member 2 may be fixed to the foundation F by using, for example, an adhesive other than the anchor bolt B. Further, a floating member (not shown) or the like may be interposed between the inner base Fb and the lower member 2 to form, for example, a ventilation channel. In addition, a wooden base 8 is fixed on the outer foundation Fa in consideration of, for example, the connectivity with an outer wall panel (not shown).

  Moreover, the process of fixing the 1st large drawing 9 extended in parallel with the said lower side member 2 to positions other than the foundation F to the metal fitting 7c of the said bundle material 7 using a volt | bolt etc. is performed. As described above, the bundle material 7 of the present embodiment is one that can adjust the height of the metal fitting 7c relative to the soil concrete D. Therefore, the first draw 9 supported by the bundle 7 is different from the draw 1 of the above embodiment, and a standard draw that does not have a level matching function is used. The pulling 9 may be a wood material. However, it goes without saying that instead of the first pull 9, the pull 1 may be used.

  Next, the upper member 3 is fitted into the lower member 2 fixed to the foundation 2, and the upper member 3 is slid in the height direction to adjust the overlap margin L between the hanging piece 3b and the rising piece 2b. Then, level adjustment is performed to adjust the upper surface of the upper member 3 to the same height as the upper surface of the first pulling 9 (adjustment process). In this step, as shown in FIG. 5, for example, a reference leveling is performed using a water thread HL or the like, and the height position of the upper member 3 is adjusted accordingly. At this time, for example, a wedge-shaped member is inserted from both ends in the longitudinal direction of the groove space between the stacked lower member 2 and upper member 3, and the position of the upper member 3 is temporarily set while taking it in and out. Subtle level adjustment can be easily performed while holding. In addition, about the bundle material 7, the upper surface height of the 1st large drawing 9 can be adjusted using the screw shaft part 7b.

  When the adjustment step is finished, the lower member 2 and the upper member 3 are fixed by screwing screws from the side into the overlapping portion 5 between the hanging piece 3b and the rising piece 2b (fixing step). Thereby, as shown in FIG. 6, it is possible to form the second fork 10 extending at the same height as the first fork 9.

  Thereafter, as shown in FIGS. 7 and 8, the floor panel P that is a flooring material is fixed across the first pulling 9 and the second pulling 10. The floor panel P of the present embodiment has a substantially square shape including a joist 12, a face material 13 fixed thereon, and a heat insulating material 14 disposed therebetween. For example, the floor panel P includes: Both ends are fixed to the large pulls 9 and 10 using a drill screw 15 penetrating the joist 12. A floor finish or the like is laid on the outside of the face material 13.

  Thus, according to the floor construction method of the present embodiment, by adjusting the overlap margin L between the hanging piece 3b of the upper member 3 of the steel pulling 1 and the rising piece 2b of the lower member 2 is adjusted. In addition, the upper surface of the upper member 3 can be easily adjusted to the same height as the other adjacent large pulling upper surfaces. Accordingly, the level can be easily adjusted, so that the workability can be greatly improved, for example, the floor panel can be held horizontally efficiently.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments described above, and can be modified into various embodiments. For example, in the above embodiment, the lower member 2 and the upper member 3 are both made of channel steel, but one of them may be shaped like a square pipe. Further, the upper member 3 can be inserted into the groove of the lower member 2 and a screw for fixing both members can be screwed from a through hole provided in the rising piece of the lower member 2.

DESCRIPTION OF SYMBOLS 1 Steel large drawing 2 Lower member 2a Bottom plate part 2b Standing piece 3 Upper member 3a Upper plate part 3b Drooping piece 4 Screw F foundation Fa outer foundation Fb inner foundation

Claims (4)

A steel pull,
A lower member fixed to the foundation side, and an upper member that is slidably fitted to the lower member in a vertical direction and can support the flooring on the upper surface,
The lower member includes at least a bottom plate portion attached to the foundation and a pair of rising pieces extending upward from both ends of the bottom plate portion, and the upper member forms an upper plate. And a pair of hanging pieces extending downward from both ends of the upper plate portion and superimposed on the pair of rising pieces of the lower member,
The drooping piece made of steel, wherein the hanging piece and the rising piece are fixed to the overlapping portion by a screw screwed from the side.   The steel lowering according to claim 1, wherein the lower member is made of channel steel with a groove portion facing upward.   The upper member is made of channel steel with the groove portion facing downward, and the drooping piece is extrapolated to each outer surface of the rising piece, and the penetrating piece is previously formed with a through-hole for passing a screw. The steel pull according to claim 1. A method for constructing a floor using a steel pull according to any one of claims 1 to 3 ,
Fixing the lower member to the upper surface of the foundation;
A step of horizontally supporting the first pulling extending in parallel with the lower member at a position other than the foundation using a bundle;
The upper member is overlaid on the lower member fixed to the foundation, and the overlap margin between the hanging piece and the rising piece is adjusted, and the upper surface of the upper member is the same as the upper surface of the first large pulling. An adjustment process to match the height,
A fixing step of forming a second large pulling by screwing a screw from the side and fixing the hanging piece and the rising piece after the adjustment step;
The floor construction method characterized by including the floor material construction process of straddling and fixing a floor material on said 1st overdraw and 2nd overdraw.

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