JPH0320413Y2 - - Google Patents

Description

[Detailed explanation of the idea] 【Technical field】

The present invention relates to a structure for attaching rafters to beams such as roof beams that form the main building.

[Background technology]

When attaching the rafters 8 to the beams 6, conventionally two mounting plates 11,
This was done using 11. That is, by press-fitting and engaging the engagement notches 3 formed in each mounting plate 11 with the edges on both sides of the upper flange 7 of the beam 6, each mounting plate 11, 11 is attached to the beam 6.
Then, as shown in FIG.
As shown in Figure b, the rafter 8 is inserted through the mounting plates 11, 11 by hammering with a hammer 13 or the like.
is attached to the beam 6. However, in this one, the rafters 8 to the beams 6
When installing, install two mounting plates 11.
It is necessary to fix each mounting plate 11 to both the beam 6 and the rafter 8, and to fix each mounting plate 11 to the rafter 8, it is necessary to drive a large number of nails (six in total), which increases the number of man-hours. The problem was that there were many. In particular, this work is carried out at a high place called a beam, and there is a problem that driving nails at a high place is difficult and there is also a risk of forgetting to drive a nail. For this reason, the applicant has decided to
As shown in Japanese Patent Publication No. 102905), we proposed a horizontal member attachment device in which gripping pieces B and B each having a spring are arranged side by side on the upper side surface of a groove body A, and claw pieces C are set upright on the inner surface of the gripping piece B. However, in this case, the claws C of the clamping piece B are at the same height, so when the claws C are driven into the rafters, the height of the driving position of the claws C is As a result, a new problem has arisen in that not only is it impossible to stably and firmly attach the rafters, but the rafters may also be damaged.

[Purpose of invention]

The present invention has been developed in view of the above points, and it is possible to attach rafters to beams with less man-hours and easy work, and it is also possible to attach rafters stably and firmly, while also preventing damage to the rafters. The object of the present invention is to provide a structure for attaching rafters to beams without causing any damage.

[Disclosure of invention]

Therefore, the structure for attaching rafters to a beam according to the present invention is to provide side plates 1, 1 on both sides, form a mounting bracket 2 having a substantially U-shaped cross section with an open upper surface, and end the side plates 1 on the same side of each side plate 1. An engaging notch 3 is provided in each side plate 1.
A plurality of bendable and deformable strips 5 are integrally protruded upward from one end to the other at the upper end, and each strip 5 is bent inward into a substantially dogleg shape.
Nail pieces 4 are formed at the upper ends of the elongated pieces 5 provided on each side plate 1 and facing each other between the elongated pieces 5 and between each side plate 1.
The mounting bracket 2 is fixed to the beam 6 by inserting and engaging the engagement notch 3 with the edge of the upper flange 7 of the beam 6, with the height positions of the nail pieces 4 being different between the two sides of the mounting bracket 2. It is characterized in that nail pieces 4 of each bent strip 5 are press-fitted into both sides of a rafter 8 inserted between 1 and 1 and placed above the beam 6, By using the mounting bracket 2, the rafter 8 can be easily attached to the beam 6 with less man-hours and the present invention will be described in detail below with reference to examples. As shown in FIG. 2, the mounting bracket 2 is formed of a metal plate with side plates 1, 1 extending upward from both ends of the substrate 10 at the lower end, and having a substantially U-shaped cross-section with an opening at the top. , an engagement notch 3 is provided at the side end of each side plate 1, 1 on the same side. The engagement notch 3 is formed so that the vertical width of its opening end is set larger than the thickness of the upper flange 7 of the beam 6, which will be described later, and the vertical width of the inner part is set smaller than the thickness of the upper flange 7. A round hole 14 is formed at the rear end of the matching notch 3. Further, at the upper end of each side plate 1, a pair of elongated pieces 5, 5 are provided.
is integrally extended upward. Each of the elongated pieces 5 extends at its base end so as to be inclined obliquely upward toward the outside, so that each elongated piece 5 can be bent and deformed by its base end. Further, each of the strips 5 is bent inward in a substantially dogleg shape, and the nail pieces 4 are integrally extended inward and diagonally upward so as to be approximately perpendicular to the upper end of each strip 5. be. The tip of nail piece 4 is shown in Figure 2 d.
The spacing between the tips of the nail pieces 4, 4 facing each other between the side plates 1, 1 is the same as that of the side plates 1, 1.
The dimensions are set to be approximately the same as the spacing between 1. Further, the height positions of the nail pieces 4, 4 are made to be different between the pair of elongated pieces 5, 5 provided on each side plate 1 and the elongated pieces 5, 5 facing each other between the side plates 1, 1. However, when attaching the rafter 8 to the beam 6 using the mounting bracket 2 formed like a lever,
First, the engagement notches 3, 3 on each side plate 1, 1 of the mounting bracket 2.
are inserted and press-fitted into one side edge of the upper flange 7 of the beam 6, respectively, and the mounting bracket 2 is fixed to the beam 6. Next, as shown in FIG. 3a, the wooden rafter 8 is placed on the upper flange 7 of the beam 6 so as to be inserted between the side plates 1, 1 of the mounting bracket 2. And a pair of levers 15, 15 pivotably attached like scissors.
By using a jig 17 formed by providing caulking plates 16, 16 at the tips of the mounting bracket 2, as shown in FIG. , the strips 5,5 are bent inwardly at their proximal ends to press each nail strip 4,4 into each side of the rafter 8. In this way, by press-fitting the nail piece 4 into the rafter 8 and engaging the engagement notch 3 with the beam 6, the rafter 8 is attached to the beam 6 via the mounting bracket 2, as shown in FIG. It can be installed.

[Effect of the idea]

As mentioned above, in the present invention, side plates are provided on both sides, and the mounting bracket is formed in a substantially U-shaped cross section with an open top surface, and an engagement notch is provided at the end of the same side of each side plate. A plurality of bendable and deformable strips are integrally protruded upward from one end to the other at the upper end, each strip is bent inward in a substantially dogleg shape, and a nail piece is attached to the upper end of each strip. The height positions of the nail pieces are varied between the strips formed on each side plate and between the strips facing each other between each side plate, and the engagement notch is inserted and engaged with the edge of the upper flange of the beam. The mounting bracket was fixed to the beam by using the screws, and the bent nail pieces were inserted between the side plates of the mounting bracket and pressed into both sides of the rafter placed on the upper side of the beam. The rafters can be attached to the beams by press-fitting the integral nail pieces into both sides of the rafters, making it easy to attach the rafters to the beams using a single component called the mounting bracket, and there is no need to drive nails. The rafters can be attached to the beams with simple work, and there is no problem of forgetting to drive nails. In addition, since the height positions of the nail pieces are made different between the strips provided on each side plate and between the strips facing each other between each side plate, it is possible to vary the locations where the nail pieces are pressed into the rafters. , the rafters can be stably and firmly installed, and the rafters will not be damaged.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 a, b, c, and d are a front view, left side view, right side view, and front view of the nail piece portion of the mounting bracket used in the above. 3
Figures a and b are front views showing the same working process as above, Figure 4 is a perspective view of a conventional example, Figures 5 a and b are front views showing the same working process as above, and Figure 6 is another conventional example. It is a partially cutaway perspective view. 1 is a side plate, 2 is a mounting bracket, 3 is an engagement notch, 4 is a nail piece, 5 is an engagement piece, 6 is a beam, 7 is an upper flange, 8
It is a rafter tree.

Claims (1)

[Scope of utility model registration request] Side plates 1, 1 are provided on both sides, and a mounting bracket 2 is formed in a substantially U-shaped cross section with an open top surface, and an engagement notch 3 is provided on the same side of each side plate 1, and a mounting bracket 2 is provided at the upper end of each side plate 1 from one end to the other. A plurality of bendable and deformable strips 5 are integrally projected upward, and each strip 5 is bent inward into a substantially dogleg shape to form a nail piece 4 at the upper end of each strip 5. The height positions of the nail pieces 4 are made different between the strips 5 provided on each side plate 1 and between the strips 5 facing each other between each side plate 1, and engagement notches 3 are formed on the edge of the upper flange 7 of the beam 6. Each of the elongated strips bent on both sides of the rafter 8 is inserted and engaged to fix the mounting bracket 2 to the beam 6, and is inserted between the side plates 1, 1 of the mounting bracket 2 and arranged on the upper side of the beam 6. Structure for attaching rafters to beams by press-fitting nail pieces 4 of 5.