JPH0643343Y2 - Floor board support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a floor plate supporting device for supporting a floor plate of a building such as an apartment house.

(Prior Art) In Japanese Utility Model Publication No. 57-14278 as a type of floor plate support device, a support leg having a screw hole formed on the upper surface is vertically fixed to a concrete foundation surface, and a support bolt is screwed into the screw hole. At the same time, the upper surface of the support leg is sandwiched by a pair of upper and lower nuts screwed to the same bolt to fix the support bolt to the support leg in a height-adjustable manner, and a holder with a U-shaped cross section is attached to the upper end of the support bolt. A floorboard that is attached, holds the Daihiki steel in the same holder, inserts bolts into both upper ends of the holder, tightens the Daihiki steel from both sides, and places joist steel on the Daihiki steel. A support device is disclosed.

(Problems to be Solved by the Invention) According to the above-mentioned conventional floor board supporting device, a holder is provided at the upper end of the support bolt, and the Daihiki steel is held by the holder, and the joist steel is placed on the Daihiki steel. Therefore, the height from the concrete foundation surface to the joist steel upper surface cannot be made lower than the dimension of the length of the support bolt plus the vertical width of Daihiki steel.
Therefore, it is not suitable for the construction of apartment houses where the height from the concrete foundation surface to the floorboard is relatively low.

In addition, a holder having a U-shaped cross section that matches the lateral width of Daihiki steel and bolts that are inserted through both upper ends of the holder are required, so that the number of parts is large and the assembly work is troublesome and the construction cost is high.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a floor board supporting device that can reduce the height from the concrete foundation surface to the top surface of the joist steel on which the floor board is mounted as much as possible and has a simple structure.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the floor board supporting device according to the present invention has a through hole formed in one side surface of a grooved joist steel, and a supporting bolt fixedly erected on a concrete foundation surface. The grooved joist steel is fixed to the support bolt by sandwiching the one side surface with a pair of upper and lower nuts screwed into the through hole and screwed to the bolt, and the floor plate is attached to the other side surface of the groove joist steel. Is installed.

For the same purpose, a plate having through holes is installed between both ends of the grooved joist steel extending in the longitudinal direction to integrally fix the plate and the groove joist steel together. An opening for inserting a nut tightening tool is formed in a portion of the bottom surface of the nut facing the plate, and a support bolt fixedly erected on a concrete foundation surface is inserted into the through hole, and a pair of upper and lower nuts screwed to the bolt are inserted. The plate is clamped to fix the grooved joist steel to the support bolt, and the floor plate is mounted on the bottom surface of the groove joisted steel.

Further, for the same purpose, an opening for inserting a nut tightening tool is formed on the bottom surface of the grooved joist steel, and the first plate is screwed into the support bolt fixedly erected on the concrete foundation surface, and the through hole is formed. The plate is loosely inserted in the same bolt, and both plates hold the inwardly bending rip part formed along the longitudinal direction at the tips of both sides of the grooved joist steel,
The second plate is fastened to the first plate with a nut screwed to the support bolt to fix the channel joist steel to the bolt, and the floor plate is placed on the bottom surface of the channel joist steel. It is characterized by doing so.

(Operation and effect of device) According to the floor board supporting device of claim 1, the position of the lower nut is adjusted in advance, and the tip of the supporting bolt is inserted into the through hole to form the groove shape. By inserting the upper nut from the opening extending in the longitudinal direction of the joist steel into the support bolt 5 and tightening it with the nut tightening tool, the height from the concrete foundation surface to the grooved joist steel top surface can be adjusted. Can be fixed to the support bolt.

Further, according to the floor board supporting apparatus of the second aspect, the position of the lower nut is adjusted in advance, and the upper nut is inserted into the support bolt through the opening formed in the bottom surface of the grooved joist steel. Then, if tightened with a nut tightening tool, the grooved joist steel can be fixed to the support bolt with height adjustable.

Further, according to the floor board supporting apparatus of claim 3, the first plate is previously screwed to the supporting bolt at a predetermined height, and the groove-shaped thick steel bar is formed from the opening extending in the longitudinal direction between the rip portions. After inserting the second plate into the inside and loosely inserting the plate into the support bolt, screw the nut into the support bolt through the opening formed in the bottom surface of the grooved joist steel and tighten it with the nut tightening tool. Steel can be fixed to the support bolts with height adjustment.

Therefore, according to each of the above-mentioned floor board supporting devices, it is possible to assemble the steel bolts so that the tip end portions of the supporting bolts erected and fixed on the concrete foundation surface are inserted into the grooved joist steel. Therefore, if necessary, it is possible to install the grooved joist steel at a position where the lower surface is close to the concrete foundation surface. Therefore, it is possible to lower the height from the concrete foundation surface to the upper surface of the channel joist steel until it becomes almost equal to the vertical width of the steel.

Further, since the grooved joist steel is directly fixed to the support bolts and no parts such as a holder for holding the steel are required, the structure is simple and the cost can be reduced.

(Embodiment) The first embodiment of the present invention will be described below with reference to the drawings.
FIG. 2 and FIG. 2 show a floor board supporting device according to an embodiment of the invention described in claim 1.

The apparatus comprises a plurality of channel joist steels 2 arranged in parallel on a concrete foundation surface 1, and a floor board 3 is placed on these channel joist steels 2.

Each grooved joist steel 2 has a substantially C-shaped cross section, and both sides 2
At the tips of a and 2b, there is a rip part 2c bent inwardly.
Is formed along the longitudinal direction of. Also, the lower side surface 2b
A through hole 2d is formed in the central portion of the through hole 2d through which a tip portion of a support bolt 4 to be described later is inserted, with a predetermined interval along the longitudinal direction.

On the other hand, a support bolt 4 is erected on the concrete foundation surface 1 and is fixed by a hole-in anchor 5 embedded in the foundation surface 1. As shown in FIG. 2, a plurality of support bolts 4 are arranged on the concrete foundation surface at intervals corresponding to the through holes 2d of the channel joist steel 2. The upper ends of the support bolts 4 are inserted into the through holes 2d facing each other, and each support bolt 4 has a spring washer 6 and a pair of upper and lower washers 7.
Is loosely inserted and a pair of upper and lower nuts 8 are screwed together,
The groove side joist steel 2 is fixed to the support bolt 4 by sandwiching the lower side surface 2b with a washer 7 and tightening with a nut 8 from above and below via a spring washer 6. A floor plate 3 is mounted on the upper side surface 2a of the channel joist steel 2.

This embodiment has the above-described structure. When the grooved joist steel 2 is assembled to the support bolt 4, the lower nut 8 is screwed into the support bolt 4 in advance and the length between the two lip portions 2c is increased. The spring washer 6 and the upper washer 7 are loosely inserted into the upper end portion of the support bolt 4 from the opening 2e extending in the direction, and the upper nut 8 is screwed, and the nut tightening tool is inserted from the opening 2e to insert the upper nut 8 into the upper nut 8. The channel joist steel 2 is fixed to the support bolt 4 by tightening. At that time, the height from the concrete foundation surface to the upper surface of the channel joist steel 2 is appropriately adjusted by adjusting the position of the nut on the lower side.

According to this embodiment, however, the support bolts 4 fixedly erected on the concrete foundation surface 1 are inserted into the through holes 2d formed in the lower side surface 2b of the grooved joist steel 2, and the steel 2 is attached to the support bolts 4. Since the assembling is done, the assembling height of the steel 2 can be set low to the position where the lower side surface 2b of the channel joist steel 2 is close to the concrete foundation surface 1 if necessary. Therefore, the height from the concrete foundation surface 1 to the upper surface of the channel-shaped joist steel 2 can be lowered until it becomes almost equal to the vertical width of the steel 2.

Further, since the grooved joist steel 2 is assembled to the support bolt through the nut 8 or the like and does not require parts such as a holder, the structure is extremely simple, and therefore the installation work is easy and the construction cost can be reduced.

Next, one embodiment of the floor board supporting device according to the invention as set forth in claim 2 is shown in FIGS. 3 and 4.

In this apparatus, a plate 10 having a through hole 10a is installed between both lip portions 2c of the channel joist steel 2 and welded to both lip portions 2c to be integrally fixed to the channel joist steel 2. Further, an opening 2g into which a nut tightening tool is inserted is formed in a portion of the bottom surface 2f of the steel 2 facing the plate 10. Then, the support bolt 4 erected on the concrete foundation surface 1 is inserted into the through hole 10a, and the plate 10 is sandwiched by a pair of upper and lower washers 7 loosely inserted in the bolt 4 and from above and below via the spring washer 6. The grooved joist steel 2 is fixed to the support bolts 4 by tightening with a pair of nuts 8, and the floor plate 3 is placed on the bottom surface 2f of the grooved joist steel 2.

The present embodiment has the above-described structure. When the grooved joist steel 2 is assembled to the support bolt 4, the lower nut 8 and the washer 7 are previously attached to the support bolt and are formed on the bottom surface of the steel 2. Insert the upper washer 7, the spring washer 6, and the upper nut 8 in order from the opening 2g into the support bolt,
Insert the nut tightening tool through the opening 2g and insert the nut 8 on the upper side.
The channel joist steel 2 is fixed to the support bolt 4 by tightening.

According to this embodiment, however, since the grooved joist steel 2 is installed sideways with respect to the support bolt 4, the assembling height of the groove joisted steel 2 is further increased as compared with the embodiment shown in FIG. It is possible to lower it.

Next, FIG. 5 shows an embodiment of the floor board supporting device according to the invention as defined in claim 3.

The device has a first plate with a screw hole 11a formed in the center and a second plate with a through hole 12a formed in the center as well. The plate 12, the spring washer 6 and the washer 7 are loosely inserted in the same bolt 4, and both the plates 11 and 12 hold the two rip portions 2c of the grooved thick steel 2, and the support bolt 4 is attached to the spring washer 6 from above. The second plate 12 is fastened to the first plate 11 with the nuts 8 screwed together to fix the grooved joist steel 2 to the same bolt 4, and the bottom surface 2f of the groove joist steel 2 is fixed.
The floor board 3 is installed on the.

This embodiment has the above-described structure. When the grooved joist steel 2 is assembled to the support bolt 4, the first plate 11 is previously screwed to the support bolt 4 at a predetermined height, and the gap between the rip portions 2c is fixed. After inserting the second plate 12 into the grooved joist steel 2 from the opening 2g extending in the longitudinal direction of the groove and loosely inserting the plate 12 into the support bolt, the opening 2g formed on the bottom surface of the groove joist steel 2 in order. The washer 7, the spring washer 6, and the nut 8 are inserted into the support bolts, and the nut 8 is tightened with a nut tightening tool.

According to the present embodiment, the channel joist steel 2 can be installed sideways with respect to the support bolt 4 similarly to the embodiment shown in FIG. 4, so that the assembling height of the channel joist steel 2 is lowered. It becomes possible.

Next, another embodiment of the floor board supporting device according to the invention described in claim 3 is shown in FIG. In the device, the first plate 11
Two elastic members 13 made of a rubber sheet or the like are interposed between the second plate 12 and the second plate 12, and the two members 2c are sandwiched by the same members. Except for this point, the rest of the configuration is the same as that of the embodiment shown in FIG.

According to this embodiment, the vibration applied to the floor plate 3 can be suppressed by the elastic member to reduce noise.

In addition, in each of the above-described embodiments, the support bolt 4 is vertically fixed to the concrete foundation surface 1 by the hole-in anchor 5, but the fixing means of the support bolt 4 is not limited to this and, for example, a chemical anchor is used. Alternatively, the support bolts 4 may be welded to a metal plate and erected, and the plate may be fixed to the concrete foundation surface 1 with concrete nails.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of an essential part of an embodiment of a floor board supporting device according to the invention described in claim 1, FIG. 2 is a perspective view showing the whole structure of the device, and FIG. An enlarged cross-sectional view of an essential part of an embodiment of a floor board supporting device according to the invention described in item 2, FIG. 4 is a perspective view showing the overall configuration of the device, and FIG.
Sectional enlarged sectional view of the floor board support device according to the invention described in paragraph,
FIG. 6 is an enlarged cross-sectional view of the essential parts of another embodiment of the floor board supporting device according to the invention as defined in claim 3. Explanation of symbols 1 …… Concrete foundation surface, 2 …… Channel steel joist, 2a, 2b
...... Side face, 2c ...... Rip part, 2d ...... Through hole, 2e, 2g ...... Opening, 2f ...... Bottom face, 3 ...... Floor plate, 4 ...... Support bolt, 5 ...
… Hole in anchor, 6… Spring washers, 7…
… Washashi, 8 …… Nut, 10,11,12 …… Plate, 10
a, 12a ... through hole, 11a ... screw hole.

Claims (3)

[Scope of utility model registration request] 1. A through hole is formed in one side surface of a grooved joist steel, and a support bolt fixedly erected on a concrete foundation surface is inserted into this through hole, and a pair of upper and lower nuts screwed into the bolt are used. A floor board supporting device, wherein the grooved joist steel is fixed to the support bolt by sandwiching the one side surface, and a floor board is placed on the other side surface of the groove joist steel. 2. A plate having a through hole is installed between both ends of the grooved joist steel extending in the longitudinal direction so as to integrally fix the plate and the groove joist steel together. An opening for inserting a nut tightening tool is formed at a site facing the plate on the bottom surface, a support bolt fixedly erected on a concrete foundation surface is inserted into the through hole, and a pair of upper and lower nuts screwed to the bolt are formed. A floor board support structure, characterized in that the plate is sandwiched between them to fix the grooved joist steel to the support bolts, and a floor board is placed on the bottom surface of the groove joisted steel. 3. A second plate in which an opening for inserting a nut tightening tool is formed in the bottom surface of grooved joist steel, and the first plate is screwed into a supporting bolt fixedly erected on the concrete foundation surface and a through hole is formed. Loosely inserted into the same bolt, hold the inwardly bent lips formed along the longitudinal direction at the tips of both sides of the grooved joist steel with both plates, and use the nut screwed to the support bolt 2 plates to the first
A floor board supporting device, wherein the grooved joist steel is fixed to the same bolt by being tightened to a plate, and a floor board is mounted on the bottom surface of the groove joisted steel.