JPS6318683Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a floorboard support device that can eliminate the need for large pulls.

Recently, in flooring work, a construction method using a floor plate support device has been adopted in place of the old construction method based on slats. As shown in Fig. 3, this floor plate support device includes a floor support block 1 at the upper end.
There is a known structure that consists of a height adjustment bolt 2 to which a height adjustment bolt 2 is fixed, and a bottomed embedded cylinder 4 having a flange 3 on the outer periphery of an axially intermediate portion, but this has the following drawbacks in terms of construction. It was hot. That is, when using this conventional device, the embedded cylinder 4 is embedded and fixed in the embedded hole 6 previously drilled in the concrete slab 5 via the adhesive 7, and then the height adjustment bolt 2 is inserted into the embedded cylinder 4. After screwing in the lower end and adjusting the level according to the screwing amount, tighten the fixing nut 8 screwed onto the bolt 2 in advance to fix the embedded cylinder 4.
and bolts 2 are fixed, and floorboards 9 or joists are constructed on top of these. However, during construction, the work of tightening and fixing the fixing nuts 8 one by one with a wrench for each of the floorboard support devices, which are used in a huge number in practice, requires a great deal of labor and time. . Moreover, in order to facilitate this nut tightening work, it is necessary to maintain enough space to put one's hand under the floor support block 1, which results in the floor support block 1 being set at a high position. However, there was a drawback that the height from the concrete slab 5 to the floor surface could not be lowered arbitrarily.

In addition, in order to eliminate the above-mentioned drawbacks, a floor plate support device has been proposed that uses a bottomless flange-shaped embedded cylinder 10 in place of the embedded cylinder 4, as shown in FIG. (Refer to Publication No. 129127/1983). When using this device, the lower end of the height adjustment bolt 2 is screwed into the embedding cylinder 10 in advance in a penetrating state, and after the adhesive 7 is injected into the embedding hole 6, the embedding cylinder 10 is inserted into the embedding hole. 6 to the position of the flange 10a, the floor support block 1 is rotated to adjust the level before the adhesive 7 hardens, and then the floor support block 1 is left until the adhesive hardens. . However, with this construction method, the entire device must be implanted, set up, and leveled all at once within the limited time it takes for the adhesive to harden. There are many. In addition, in terms of construction efficiency, the procedure of first firmly fixing the embedded cylindrical body 10, which is the base of the device, and then fixing the height adjustment legs 2 thereto, means that the embedded cylindrical body 10 is fixed and the height Although it is actually more advantageous to perform the fixing (including level adjustment) of the height adjusting leg 2 in separate steps, there is a problem in that it must all be done in one step as described above. Furthermore, since level adjustment must be performed while the entire device is unstable with the adhesive not yet cured, the level adjustment itself is difficult to perform, and there are cases where the device tilts and remains fixed in that position after level adjustment. There are many. In addition, the height adjustment bolt 2 and the embedded cylindrical body 10 are said to be connected by an adhesive that seeps between the screws as the bolt 2 rotates during level adjustment, but in reality, the adhesive that soaks into the space between the screws when the bolt 2 rotates during level adjustment is used. Even if a certain high viscosity adhesive is rotated, it is difficult to ensure that it soaks into the threaded part, and even more so, since the amount of rotation (level adjustment amount) of bolt 2 is not constant, Conventional floor plate support devices have had various disadvantages in construction, such as poor connection with the cylinder 10.

The present invention has been developed to eliminate these drawbacks, and allows the fixing of the embedded cylinder and the fixing of the height adjustment bolt to be carried out efficiently by separating them into separate processes.
The purpose of this invention is to provide a floorboard support device that can firmly connect the two, and its configuration is as follows.

The present invention consists of a height adjustment bolt with a floor support block fixed to the upper end, and a bottomed cylindrical body that is embedded and fixed in a concrete slab and into which adhesive is injected. The floorboard support device is characterized in that the inner circumferential surface thereof is provided with a female thread into which the height adjustment bolt is screwed, and a saucer portion for receiving the adhesive is connected in a brim shape on the outer circumference of the upper end. It is.

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

Reference numeral 11 denotes a height adjustment bolt, and a receiving metal fitting 12 is fixed to the upper part of the bolt 11, and the receiving metal fitting 12 is screwed to the lower surface of a floor supporting block 14 made of plywood or the like through a buffer packing 13. A floor support block 14 is fixed to the upper end of the height adjustment bolt 11. In addition, this bolt 11 and floor support block 1
The coupling means 4 can be arbitrarily selected from various methods. For example, a method may be adopted in which the upper end of the bolt 11 is inserted into a recessed hole provided in the center of the lower surface of the floor support block 14 and fixed with adhesive. Good too. Further, the buffer packing 13 may be used as necessary.

Reference numeral 15 denotes an embedded cylinder, and the cylinder 15 has a bottomed cylindrical shape with a female thread on the inner surface that can be screwed into the height adjustment bolt 11, and the upper end functions as a funnel when injecting adhesive. The receiving tray portion 16 is integrally arranged in a flange-like manner. The saucer portion 16 has a circular planar shape and is shaped like a shallow bowl with a peripheral edge portion 16a standing vertically. The outer peripheral surface of the cylinder 15 is knurled to increase adhesive strength.

Therefore, when performing flooring work using the floor plate support device according to the present invention, first, an embedding hole 18 into which the embedding cylinder 15 can be inserted is drilled at a desired position in the concrete slab 17. The embedding hole 18 is bored to a depth equal to or longer than the length of the embedding cylinder 15 and has a diameter slightly larger than the outer diameter of the embedding cylinder 15. Next, the embedded hole 1
An appropriate amount of adhesive 19 such as epoxy resin is injected into 8, and then the embedded cylinder 15 is inserted to the position of the saucer portion 16. This state is left until the adhesive 19 hardens, and after the adhesive hardens, that is, after the embedding cylinder 15 is completely adhesively fixed in the embedding hole 18, a similar adhesive 20 is placed inside the cylindrical body 15. Inject an appropriate amount of and screw in the lower end of the height adjustment bolt 11. Then, before the injected adhesive 20 has hardened, the floor support block 14 is rotated to adjust the level, and the adhesive 20 is left until it hardens. After hardening, the floor board 21 is placed on the floor support block 14. , or fix the joists and floorboards using nails 22 or a combination of glue and nails.

As described above, when using the floor plate support device of the present invention, the embedded cylindrical body 15 is embedded and fixed, and the cylindrical body 15
Since the height adjustment bolt 11 can be fixed (including level adjustment) in separate steps, for example, the embedded cylinder 15 can be installed on the first day, and the height adjustment bolt 11 can be installed on the second day. 11 construction is carried out, the construction is easy to arrange, can be carried out efficiently, and does not take up too much time. Further, since the height adjustment bolt 11 is installed with the embedded cylinder 15 completely fixed, the bolt installation work and level adjustment work are made easier, and there is no fear that the bolt 11 will tilt after the level adjustment. Furthermore, with the adhesive 20 injected into the embedded cylindrical body 15, the bolt 1 is
1, the adhesive 20 is sufficiently spread between the two 11 and 15, and the bolt 11 is firmly fixed.

In addition to this, a saucer portion 15 provided at the upper end of the embedded cylinder 15 allows the adhesive 2 to enter the cylinder 15.
Since the adhesive 20 exhibits a funnel effect when injecting the adhesive 20, the adhesive injection work becomes easy, and there is no risk of the adhesive 20 spilling or overflowing during this injection or when screwing in the bolt after injection. Further, the saucer portion 16 can be used as a guide for determining the appropriate amount of adhesive to be injected. For example, by setting the volume of the saucer portion 16 so that it is full, the appropriate amount of adhesive can be injected. This makes it possible to inject just the right amount of adhesive.

By the way, the embedded cylinder 1 for the embedded hole 18
5 is usually fixed using the adhesive 19 as described above, but if sufficient fixing force can be secured, it is also possible to fix the cylinder 15 by driving it into the hole 18. Construction efficiency will be even better. In addition, when using the device of the present invention, as a general rule, the adhesive 20 is placed inside the embedded cylinder 15 as described above.
The procedure is to screw in the height adjustment bolt 11 after injecting the bolt, but in some cases, after screwing the bolt 11 into the embedded cylinder 15 by an appropriate amount, the saucer part 16 may be screwed in.
Inject adhesive into the bolt 11 while adjusting the level.
It is also possible to take a procedure in which the adhesive is soaked between the bolt 11 and the cylindrical body 15 by further screwing the bolt 11. Even in such a case, the adhesive flows down from the part with a drop called the saucer part 16, so that it easily soaks into the threaded part, compared to the case of the construction method using the conventional apparatus shown in FIG.

Note that the saucer portion 16 may be formed in a funnel shape,
In this way, especially as mentioned above, the embedded cylindrical body 1
When the adhesive is injected after the height adjustment bolt 11 is screwed into the screw 5, the adhesive penetrates into the threaded portion more smoothly.

As mentioned above, when using the floor plate support device of the present invention, the fixing of the embedded cylinder and the fixing of the height adjustment bolt to the cylinder can be separated into separate processes, so that they can be done easily in terms of time and with good setup. In addition, level adjustment work becomes easier, and there is no fear that the bolt will tilt after level adjustment. Moreover, the embedded cylindrical body and the height adjustment bolt can be firmly connected. Furthermore, if you screw the height adjustment bolt into the embedded cylinder and fix it with adhesive after fixing it to the floor surface, there will be a problem with the work of injecting adhesive into the cylinder. In the present invention, since a saucer part is provided at the upper end of the embedded cylinder, the funnel function and saucer function of this saucer part make the adhesive injection work easy and efficient, and prevent spillage and overflow when screwing bolts. This can be done reliably without any loss. Therefore, the above-mentioned construction method has various excellent effects on construction, such as improved construction efficiency.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of the present invention, Fig. 2 A, B, and C are sectional views of the same in use, Fig. 3 is a sectional view showing a conventional example, and Fig. 4 is another conventional example. FIG. 11...Height adjustment bolt, 14...Floor support block, 15...Embedded cylinder, 16...Saucer portion.

Claims (1)

[Scope of utility model registration request] It consists of a height adjustment bolt with a floor support block fixed to the upper end, and a bottomed cylindrical body that is embedded and fixed in the concrete slab and into which adhesive is injected. A floorboard support device characterized in that a female thread is provided on the circumference to which the height adjustment bolt is screwed, and a saucer portion for receiving the adhesive is connected to the outer circumference of the upper end in a brim shape.