JPH034702B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for fixing an end part of a house floor to a concrete foundation.

(Prior art and problems) As shown in Fig. 6, the conventional method for fixing the end of a large pull is to attach a large hook c to a recess b for a large hook provided at the upper end of the inner surface of a concrete foundation a. When the end is inserted, the vicinity of the end is supported from below by the bundle d and fixed by the roots e and f, which makes the work very complicated.Moreover, the bundle d also has many stones including the bundle g. The cost was high because several parts were required. In addition, the bottom surface of the recess d is leveled with the mortar h at the same time as the top of the concrete foundation a, but since it is a recess, it is difficult to completely level it, and this causes the backlash of the large pull c. This was also a cause of poor installation accuracy.

(Purpose of Solving the Problem) The present invention is a method of attaching the end of a large wire at right angles to the inner surface of a concrete foundation using a receiving metal fitting, in which a fixing bolt is embedded to fix the receiving metal fitting to the concrete foundation. Another feature is the fixing method.

(Example) Hereinafter, the configuration of the present invention will be described with reference to the drawings.

FIG. 4 shows the receiving metal fitting 2 used in the present invention. This receiving metal fitting 2 is formed by bending a single metal plate, and is formed by raising up both side edges of the receiving plate 6, and holding plates 7, 7 for holding the ends of the Ohiki 1. The rear end of 6 is made to hang down to form a mounting plate 5 for attaching the receiving metal fitting 2 to the concrete foundation 4. Two or more bolt insertion holes 8 are formed in the mounting plate 5. Furthermore, claw pieces 9 are provided on the inner surfaces of the holding plates 7, 7 to project diagonally downward. The claw pieces 9 are preferably formed by partially cutting and raising the holding plates 7, 7 and bending them inward. The shape of the receiving metal fitting 2 is not limited to that described above. For example, as shown in FIG. 5, a reinforcing rib plate 10 is inserted between the receiving plate 6 and the mounting plate 5.
may be provided, and both clamping plates 7, 7 may be provided.
The rear end portion between them may be closed with a back plate 30.

Next, a description will be given of means for attaching the receiving metal fitting 2 configured in this way to the concrete foundation 4.

As shown in FIG. 3, first fixing bolts 11, 11 whose rear ends are bent into a U-shape are inserted into a dish-shaped embedding box 14 through spacers 13, 13, respectively.
Insert into the mounting holes 16, 16 of the bottom plate 15 of the bottom plate 1.
Screw the nuts 12, 12 onto the threaded portions of the fixing bolts 11, 11 from the inside of the fixing bolt 1, respectively.
1 and 11 are attached to the embedded box 14. The rear end portions of the fixing bolts 11, 11 protrude outward from the bottom plate 15.

Next, after assembling the temporary frame 17, fixing bolt 1
1 and 11, the embedded box 14 is hooked onto the upper end of the temporary frame 17 using the inverted L-shaped hanging rods 18, 18 provided at the upper end of the embedded box 14, and attached to the inner surface of the temporary frame. Install. At that time, the hanging rod 18,
Adjust the mounting height of the embedding box 14 by turning the position adjustment screws 19, 19 screwed into the embedding box 18 so that the embedding box 14 is in a predetermined position, in other words, the fixing bolts 11, 11 are in a predetermined embedding position. do. Next, concrete is poured and the top level is leveled using the level adjustment plates 20, 20 protruding from the rising parts of the locking rods 18, 18 of the embedded box 14, and the concrete foundation 4 is constructed. do. After the concrete has hardened, the temporary frame 17 is first dismantled one by one, and finally the nuts 12 are removed and the embedded box 14 is removed from the concrete foundation 4 to complete the work.

To attach the bracket 2 to the fixing bolts 11, 11 whose rear ends are buried in the concrete foundation 4, first
As shown in the figure and FIG. 2, the mounting plate 5 of the bracket 2
Fix the bolts 1 through the bolt insertion holes 8, 8 provided in the
1, 11, and nut 1 through washer 21.
2 and 12 onto the threaded portions of the fixing bolts 11 and 11. In this way, the receiving metal fitting 2 is fixed to the inner surface of the concrete foundation 4. Nuts 12, 12 are used when fixing bolts 11, 11 are buried.

In order to fix the end of the daihiki 1 to the receiving metal fitting 2 which is tightened to the fixing bolt 11 of the concrete foundation 4, as shown in Figs. It is forcibly inserted between the holding plates 7, 7 from above using a mallet or the like, and the bottom surface of the drawer 1 is brought into contact with the top surface of the receiving plate 6. At this time, the claw pieces 9 protruding from both clamping plates 7, 7 bite into the ends of the large pull 1 on both sides, and the ends of the large pull 1 are firmly fixed by the two clamping plates 7, 7. be done. The end of the large pull is fixed at right angles to the inner surface of the concrete foundation 4. This fixation is
Drill nail holes in both clamping plates 9, 9, and
The ends may be nailed.

(Effects of the Invention) The present invention is characterized in that the end of the large pull is placed on a receiving plate, and a receiving metal fitting provided with a clamping plate that holds both sides of the end of the large pull is attached to the inner surface of a concrete foundation. ,
The end of the daihiki is fixed to the concrete foundation at right angles through this receiving metal fitting. Therefore,
Since the end of the puller can be securely fixed to the concrete foundation without wobbling, work efficiency and economic efficiency are greatly improved. In addition, the end of the drawer can be fixed by simply fitting it into the receiving metal fitting, which improves work efficiency.

Furthermore, the end of the main drawer is supported and fixed by a receiving metal fitting, and the receiving metal fitting is fastened to a fixing bolt horizontally fixed to the concrete foundation using an embedded box. Therefore, the installation position of the large puller is accurate and the construction accuracy is high. Furthermore, the bracket is 1
Since it is formed by bending a sheet of metal, material costs can be reduced, which also contributes to improved economic efficiency.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a fixing structure for a large draw end according to the method of the present invention, FIG. 2 is a sectional view taken along the line X-X in FIG. 1, and FIG. An explanatory diagram showing the embedding method, FIG. 4 is a perspective view showing one embodiment of the receiving metal fitting used in the present invention, and FIG. 5 is a perspective view showing another embodiment of the receiving metal fitting.
FIG. 6 is a perspective view showing a conventional method of fixing the end of a large pull. DESCRIPTION OF SYMBOLS 1... Main puller, 2... Receiving metal fitting, 4... Concrete foundation, 5... Mounting plate, 6... Receiving plate, 7... Clamping plate, 8... Bolt insertion hole, 11... Fixing bolt.

Claims (1)

[Scope of Claims] 1. Two or more fixing bolts whose rear ends are bent into a U-shape are inserted into mounting holes formed in the bottom plate of a dish-shaped embedded box through spacers, and from these mounting holes. Attach the fixing bolt to the embedded box with the rear end protruding outward from the bottom plate by screwing a nut into the threaded part protruding inside the embedded box. Mount the embedded box face down at the appropriate location on the surface (forming the inner surface of the foundation) so that the rear end of the fixing bolt protrudes into the temporary frame, and pour concrete into the temporary frame thus created. After constructing the foundation, the temporary frame was dismantled, the nuts mentioned above were removed, the embedded box was removed from the concrete foundation, and the fixing bolts were embedded and fixed horizontally into the inner surface of the concrete foundation, and a single metal plate was installed. is bent to form a receiving bracket with an L-shaped cross section consisting of a receiving plate and a mounting plate, and both edges of this receiving bracket are raised up to form a clamping plate. A claw piece is formed,
The mounting plate is provided with two or more bolt insertion holes, and the bolt insertion holes of the mounting plate are inserted into the threaded portions of the fixing bolts protruding from the concrete foundation, and the threaded portions protruding from the mounting plate are inserted into the threaded portions of the fixing bolts that protrude from the concrete foundation. The holder is fixed to the concrete foundation by tightening a nut, and the ends of the holder are fitted into both clamping plates of the holder, thereby fixing the holder at right angles to the inner surface of the concrete foundation. How to fix the end of the main pull to the concrete foundation.