JPS6029564Y2 - Joist support fittings - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a joist support metal fitting for installing a joist used for receiving a floorboard of a building on a concrete floor surface.

As shown in FIG. 1, the conventional joist support fittings include a fixing fitting 2 fixed to a concrete floor surface 1, a screw rod 4 disposed in an insertion hole 3 formed on the upper surface of the fixing fitting 2, and It consists of a U-shaped metal fitting 6 that is attached to one end of this screw rod 4 and holds the joist 5 at an appropriate height, and the screw rod 4 is inserted into the insertion hole 3 and screwed into the screw rod 4. The U-shaped metal fitting 6 is fixed at an appropriate height position by a pair of lifting adjustment nuts 7a and 7b, and the joist 5 is fitted inside the U-shaped metal fitting 6, and the top center of both side walls 8a and 8b is There is one in which a pin 9 is communicated with a through hole drilled in the side wall 8b, and the joist 5 is fixed by tightening a nut 10 screwed onto the tip of the pin 9 protruding from the side wall 8b.

However, with such conventional joist support fittings, when installing the joist 5, the pin 9 must be removed from the U-shaped fitting 6 in advance, and then the U-shaped fitting 6 must be removed.
Since the joists 5 are fitted inside and screwed together with pins 9 and nuts 10, there is a problem that the assembly work is inefficient and complicated when a large number of floor joists are installed on a floor construction surface. .

In addition, since the joist 5 is held in the U-shaped fitting 6 and tightened with the pin 9 and nut 10, it is difficult to know how much tightening should be done. If it is too strong, the function of the elastic body 11 interposed on the inner wall of the U-shaped metal fitting 6 will be suppressed, resulting in problems such as loss of cushioning properties when a floor is constructed on the upper surface of the joist 5.

The present invention has been made in view of the above points, and is such that one of the claws of the fastener is engaged with one of the engagement holes drilled near the upper end of the U-shaped fitting, and the other claw is By pressing the top surface of the fastening tool, the piece is guided into the other engagement hole using the sloped surface of the sloped plate of the fastening tool, and the joist is held between the U-shaped metal fitting and the fastening tool. To provide a joist support metal fitting that can be held.

Hereinafter, the present invention will be described in detail based on embodiments of the joist support fitting shown in the accompanying drawings.

As shown in FIG. 2, the fixing fittings 20 of the joist support fittings are
The entire body is made of a metal plate with a substantially trapezoidal cross section, and has an upper surface 22 with a through hole 21, which gradually expands downward from both ends of the upper surface 22, and whose lower end is folded outward. It is composed of curved open leg parts 23, and nail holes 25 for driving concrete nails 24 are formed in the lower end of each of the open leg parts 23.

Further, the lower end portion of a support 27 having a U-shaped metal fitting 26 fixed thereto is inserted into the through hole 21 of the upper surface 22 of the fixing metal fitting 20.

That is, a fixing nut 28 of a U-shaped fitting 26 is screwed into the upper part of this support 27, and a pair of vertical adjustment holes are provided at the upper and lower portions of a through hole 21 formed in the upper surface 22 of the fixing fitting 20. The nuts 29a and 29b are screwed together, and the upper surface 2
It is attached so as to cover 2.

The width between the side walls 30 at 30 b of the U-shaped fitting 26 is slightly wider than the width of the joists 31, and the width between the side walls 30 at 30 b
The inner surfaces and bottom surfaces of a and 30b are covered with an elastic material 32.

Furthermore, engagement holes 33a and 33b are formed near the upper ends of both side walls 30a and 30b, respectively.

Further, a fastener 34 is attached to the upper open side of the U-shaped metal fitting 26 to hold the two side walls 30a+30b of the U-shaped metal fitting 26 at a constant distance.

As shown in FIG. 3, this fastener 34 is formed into a substantially U-shape by bending both ends of a plate material, and claws 35, 35' facing inward are provided at both bent portions of the plate material. , and one of the bent portions is provided with an inclined plate that continuously projects obliquely downward at the tip thereof.

In order to fix the joists 31 by applying the above embodiment, as shown in FIG.
0 is placed thereon, and a concrete nail 24 is driven into the nail hole 25 of this open leg portion 23 to fix it.

Next, the height position of the joist 31 is determined by a vertical lifting adjustment nut 29a screwed onto a support 27 whose approximate height position is set by vertically moving a U-shaped metal fitting 26.

29b, the upper surface 22 of the fixture 20 is tightened and fixed.

Further, a joist 31 is fitted into the U-shaped fitting 26 and brought into contact with the elastic material 32 inside the U-shaped fitting 26.

And one side engagement hole 33 is drilled in each of the U-shaped metal fittings 26.
Engage one claw piece 35 of the fastening tool 34 with the fastening tool 3
4 on the upper side of the opening of the U-shaped metal fitting 26, and then attach the fastening tool 3
By pressing both side walls of the U-shaped fitting 26 in the approaching direction using the inclined surfaces of the inclined plate 4, the other claw piece 35' of the fastener 34 is inserted into the engagement hole of the U-shaped fitting 26. 33b and fit together, and connect the joist 31 to the U-shaped fitting 26 and fastener 34.
After holding the U-shaped metal fitting 26, fine adjustment of the height position of the U-shaped metal fitting 26 is performed as necessary.

Since the present invention is configured as described above, when fixing a joist to the joist support metal fitting, it is possible to easily fit and fix the joist by pressing the top surface of the fastener, thereby greatly improving the workability of the joist assembly work. In addition to making it possible to improve the width, it is also possible to shorten the working time.

In addition, the distance between one claw piece of the fastening tool and the other claw piece is such that when the fastening tool is attached to the U-shaped fitting, the joist can be tightened to an appropriate strength with the U-shaped fitting. Since the desired length can be set in advance, the tightening is neither too weak nor too strong, and can be tightened with uniform force, preventing the joists from wobbling. This has many beneficial effects, such as being able to maintain cushioning properties when a floor is constructed on top of the joists.

[Brief explanation of drawings]

Fig. 1 is a perspective explanatory view of a conventional joist support fitting, Fig. 2 is a perspective explanatory view of a joist support fitting according to the present invention, Fig. 3 is a front view of a fastening device according to the present invention, and Fig. 4 is a FIG. 3 is a cross-sectional assembly explanatory diagram of FIG. 2; 20... Fixing metal fittings, 26... U-shaped metal fittings, 27... Pillars, 31... Joists, 3
3a, 33b...Engagement hole, 34...Fixing tool, 35.35'...Claw piece, 36...
・Concrete floor surface.

Claims (1)

[Scope of utility model registration request] A U-shaped metal fitting 26 that is attached to the upper end of a column 27 erected on the floor surface 36 and holds the joist 31 at an appropriate height, and a fastening that is attached to the upper opening side of this U-shaped metal fitting 26. This U-shaped metal fitting 26 has retaining holes 33a and 33b near the upper ends of both side walls 30a and 30b, respectively. At the same time, there are claw pieces 3 facing inward on both bent parts.
5.35', and one bent part is provided with an inclined plate that continuously protrudes from its tip, and one claw piece 35' is provided.
is engaged with the engagement hole 33a of the U-shaped metal fitting 26, and the other claw piece 35' engages the U-shaped metal fitting 2 by using the inclined surface of the inclined plate.
A joist support fitting characterized in that it is guided into and fitted into the engagement hole 33b of No. 6.