JPH0328099Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to an underfloor support bundle column suitable for use in underfloor support in places where vibrations and noise are intense, such as gymnasiums in particular.

(Prior Art) Conventionally, there have been the following underfloor support structures designed with particular emphasis on vibration isolation and sound insulation.

FIG. 1 shows an example of a conventional underfloor support structure.

In this underfloor support structure, first, the concrete slab 1 serving as the foundation is marked in accordance with the installation position of the underfloor support pillars, and then holes are drilled in the concrete slab 1 using a stone drill or the like. Drive in anchor bolt 2. Next, attach the underfloor support bundle column 3 to the threaded portion 2a of this anchor bolt 2.
screw in through the rubber gasket 2b.

This bundle post 3 is composed of a cylindrical member 4, a pedestal 5, a nut 6, an upper cover 7, and a nut 8. In this case, the cylindrical member 4 and the pedestal 5 are connected to a welded portion 9.
The base 5 and the nut 6 are fixed at a welding part 10, the upper cover 7 and the cylindrical member 4 are fixed at a welding part 11, and the upper cover 7 and the nut 8 are fixed at a welding part 12.

Therefore, after fixing the bundle column 3 to the concrete slab 1 by screwing the lower end side nut 6 of the bundle column 3 into the threaded part 2a of the anchor bolt 2, the adjustment bolt 15 is screwed into the upper end side nut 8 of the bundle column 3, and the adjustment is made in advance. Tighten the adjusting nut 17 fitted onto the bolt 15 via the spring washer 16, then tighten the tightening nut 18, onto the adjusting bolt 15.
19, Flat washers 21a, Bound anti-vibration rubber 2
2. After attaching the flat washer 21b, fit the large tension steel 24 to the upper bolt 23 and let it flow.

After pouring this steel 24, the level is adjusted, and after the level adjustment, the vibration isolating rubber 25, washer 26, and nut 27 are sequentially attached to the upper bolt 23, and the level is adjusted again and completely tightened. At this time, in order not to lose the effect of the vibration isolating rubbers 22 and 25, the tightening thereof is adjusted as appropriate.

Next, after pouring the large pull steel 24, mark out in advance the area where the joist steel 28 will be poured, and after gluing the joist packing 29 at that position, pour the joist steel 28, and install the tapping screw 30 and tighten it completely. do. Next, a plywood board 31 for pasting is placed on the joist steel 28.
After fixing the finishing flooring material 32, use the tapping screws 3.
3, and finally bury the glued wood 33.
This completes the construction.

However, the bundle column 3 used in the conventional underfloor support structure shown in FIG. The disadvantage is that there are a large number of welds 9, 10, 11, and 12 (at least 16 at each weld, even if the minimum is 4), making the work cumbersome. Another disadvantage was that the number of parts was large and production costs were high.

(Purpose of the invention) This invention was made to solve the above-mentioned conventional drawbacks.
No welding methods are used in its assembly;
The purpose of the present invention is to provide a bundle column for underfloor support that is resistant to buckling and is low in cost.

(Structure of the device) This device divides the main body of the plate into three or more areas with two or more folding lines in the vertical direction, and the inner part of the upper side of the plate in two or more of the three or more areas. A bent piece for bending is formed, and a bent piece for outward bending is formed on the lower side of the plate material in two or more areas, and the main body of the plate material is bent in the left and right direction along the two or more folding lines. The two or more bent pieces for inner bending are superimposed on each other to form a floor material side support part, and the two or more bent pieces for outer bending are made to extend laterally to form a foundation side fixing part. This feature makes it possible to eliminate the need to use welding means when assembling the underfloor support bundle column.

(Example) Hereinafter, an example of this invention will be described based on the drawings.

FIG. 2 is a developed view of an underfloor support bundle column according to an embodiment of the invention, and FIG. 3 is a perspective view.

The underfloor support bundle column 41 shown in the figure is constructed by dividing a main body 43 of a plate material 42 into three areas by two folding lines in the vertical direction, a flat plate part 44, a curved part 45, and a flat plate part 46.
Inward bending pieces 47, 48 each having an arc shape are formed on the upper side of the flat plate portions 44, 46, and rectangular outward bending pieces 51, on the lower side.
52, bolt insertion holes 53, 54 are formed in the bent pieces 47, 48 for inner bending, and buffer pin insertion holes 56, 57 are formed in the bent pieces 51, 52 for outer bending, respectively. 42 is used, and the main body portion 43 of the plate material 42 is bent in the horizontal direction along two folding lines in the vertical direction to form the curved portion 4.
5 is bent to make both flat plate parts 44, 46 almost parallel, and the bent pieces 47, 48 for inward bending are overlapped with each other so that the bolt insertion holes 53, 54 are aligned, and this part is placed on the floor. It is formed in the material side support part 58 and is formed in the foundation side fixing part 59 by making the bent pieces 51 and 52 for outward bending protrude laterally.

Figure 4 shows the underfloor support bundle column 4 shown in Figure 3 above.
1 is a diagram illustrating a structure in which underfloor support is provided using the concrete slab 1. During construction, underfloor support bundles 41 are placed at predetermined positions of the concrete slab 1 serving as a foundation via rubber packings 60, and buffer pin insertion holes 56, 57 are installed. The underfloor support bundle column 41 is fixed by inserting buffer pins 61 and 62 into the concrete slab 1, respectively.

Next, with the spring washer 16 and adjustment nut 17 fitted in advance to the adjustment bolt 15, the adjustment bolt 15 is attached to the floor material side support portion 5.
By inserting the adjustment bolt 14 into the bolt insertion holes 53 and 54 of 8 and screwing the tightening nut 14 from below the adjustment bolt 15, the adjustment bolt 1 is inserted into the underfloor support bundle column 41.
Fix 5.

Thereafter, in the same manner as described with reference to FIG. 1, the bound vibration isolating rubber 22, the large tension steel 24, the joist steel 28, etc. are assembled, and the finished flooring material 32 is installed and finished.

In addition, as another example, the bolt insertion hole 53,
It is also possible to form a female threaded hole in 54, and in this case, the adjustment bolt 15 can be fixed by tightening the nut 17 without using one of the nuts 14.

FIG. 5 and FIG. 6 are views showing still another embodiment of this invention, and the underfloor support bundle column 71 shown in the figures has a main body 73 of a plate material 72 formed by two folding lines l ₁ in the vertical direction. , l ₂ , the flat plate part 7 becomes three regions.
Divided into 4, 75, 76, flat plate parts 74, 75, 7
Triangular inner bending pieces 7 on the upper side of 6.
7, 78, 79, and rectangular bent pieces 80, 81, 82 for outward bending are formed on the lower side, and bolt insertion holes 83, 84 are formed in the bent pieces 77, 78, 79 for inward bending, respectively. , 85 and buffer pin insertion holes 86, 87, 88 are formed in the bent pieces 80, 81, 82 for outward bending, respectively. The bent pieces 77, 78, 79 for inward bending are overlapped with each other to form a triangular shape by bending 60 degrees in the left and right directions at l ₁ and l _2, respectively, and the bolt insertion holes 83, 8 are made to overlap each other.
4 and 85 and attach this part to the floor material side support part 5.
8, and the bolt insertion holes 83, 84, 85
A female thread 89 for screwing the adjustment bolt 15 is formed through the base side fixing part 59, and the bending pieces 80, 81, 82 for outward bending are formed in the base side fixing part 59 so as to extend laterally. be.

FIGS. 7 and 8 are views showing still another embodiment of this invention, and the underfloor support bundle column 71 shown in the figures has a main body 73 of a plate material 72 arranged along three folding lines l ₁ in the vertical direction. , l ₂ , l ₃ to form a flat plate part with four areas, and bend it by 90 degrees at the bending lines l ₁ , l ₂ , l ₃ to form a rectangular planar underfloor support bundle column 71 , and the upper A case is shown in which the overlapping portion is formed in the floor material side supporting portion 58 and the lower outwardly bent portion is formed in the foundation side fixing portion 59.

FIG. 9 and FIG. 10 are views showing still another embodiment of this invention, and the underfloor support bundle column 71 shown in the figures has a main body 73 of a plate material 72 arranged along five folding lines l ₁ in the vertical direction. ~ l ₅ is formed into a flat plate part that becomes six areas, and hexagonal bent sides 77 and 78 for inward bending are formed on the upper side of two of these flat plate parts, and the lower sides of the three flat plate parts are formed. By forming rectangular outward bending pieces 80, 81, and 82 and bending them by 30 degrees at the bending lines _l1 to _l5 , the underfloor support bundle column 71 is hexagonal in plane. The overlapping portion is formed on the floor material side support portion 58, and the outer bent portions of the bent pieces 80, 81, 82 for outward bending are formed on the foundation side fixing portion 5.
9 is shown.

(Effects of the invention) As explained above, the underfloor support bundle column according to this invention divides the main body of the plate material into three or more areas by two or more folding lines in the vertical direction, and divides the three or more areas. A bent piece for inward bending is formed on the upper side of the plate in two or more areas, and a bent piece for outward bending is formed on the lower side of the two or more areas, and the main body of the plate is formed on the upper side of the plate in two or more areas. The two or more bent pieces for inner bending are overlapped with each other in a state of being bent in the left-right direction along the folding line to form a floor material side support part, and the two or more bent pieces for outer bending are bent laterally. Since the structure is such that it is extended and formed at the foundation side fixed part, the underfloor support bundle can be manufactured by bending and forming the plate material cut to a predetermined contour using a press, and welding is used for its manufacture. Since it is not necessarily necessary, there are no problems such as deterioration of workability due to welding or corrosion of welded parts, and after manufacturing, it is extremely resistant to buckling, providing a low-cost bundle column for underfloor support. It can bring about very good effects.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of an underfloor support structure using conventional underfloor support bundle columns, and FIGS. 2 and 3 are developed explanatory diagrams and slopes of an underfloor support bundle column according to an embodiment of this invention. An explanatory diagram, FIG. 4 is an explanatory diagram showing an example of an underfloor support structure using the underfloor support bundle columns shown in FIG. 3, FIGS. 5 and 6, FIGS. 7 and 8, FIG. FIG. 10 is a development explanatory view and a slope explanatory view of a bundle column for underfloor support according to still another embodiment of this invention, respectively. 41,71...Bundle pillar for underfloor support, 42,72...
... Plate material, 43, 73 ... Main body of plate material, 47, 4
8, 77, 78, 79...Bending piece for internal bending, 5
1, 52, 80, 81, 82...Bending piece for outward bending, 58...Flooring side support part, 59...Foundation side support part.

Claims (1)

[Scope of utility model registration request] The main body of the plate material is divided into three or more regions by two or more folding lines in the vertical direction, and bent pieces for inward bending are formed on the upper side of the plate material in two or more regions among the three or more regions. A bending piece for outward bending is formed on the lower side of the plate material in two or more areas, and the body part of the plate material is bent in the left-right direction along the two or more folding lines, and the bending piece for inward bending is formed in the two or more areas. A bundle for underfloor support, characterized in that the pieces are overlapped with each other to form a flooring side support part, and the two or more bent pieces for outward bending are made to project laterally to form a foundation side fixing part. Pillar.