JPH0598722A - Bracket for installing floor joist - Google Patents

Abstract

PURPOSE:To sufficiently receive loads received from a surface material of a floor panel by forming a section for receiving a floor joist at a shorter height than the height of a beam. CONSTITUTION:Horizontal parts for fixing a beam 11, 12 are provided on each of the upper and lower ends of a bracket 10 for installing a floor joist. A section 13 for receiving a floor joist is formed in the bracket 10 at a position lower than the height of a long beam 15 having U-shaped section. And the parts 11, 12 are secured to the beam 15 by, for example, welding. Further, the end of a floor joist 16 is mounted on the section 13 and at the same time the joist 16 is fixed to the side of the bracket 10 by nails etc., and a surface material is secured to the upper surface of the joist 16 to form a floor surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joist mounting bracket used when a joist is mounted between a pair of beams of a floor panel facing each other, and can be used for a building such as a prefabricated house.

[0002]

BACKGROUND ART In recent years, prefabricated houses that are assembled by a panel type, a rectangular parallelepiped unit type, or the like are known. FIG. 6 shows a general rectangular parallelepiped building unit 40. This building unit 40 has a floor panel 50.
Pillars 41 are erected at four corners of the floor panel 50, and the floor panel 50 is provided between the upper ends of the pillars 41.
The long beams 42 are fixed to the two opposite sides along the longitudinal direction, and the short beams 43 are fixed to the two opposite sides along the short side direction, respectively, to form a rectangular parallelepiped shape.

The floor panel 50 comprises a pair of long beams 5 facing each other.
1 and a pair of short beams 52 facing each other that are bridged between the ends of the long beams 51, and a plurality of joists 53 are connected between the pair of long beams 51 via brackets 54, respectively. Has been done.

As shown in FIGS. 7 and 8, a conventional bracket 54 for connecting each end of each joist 53 and the elongated beam 51 is formed in a substantially C-shape on the side surface and is upright. The lower end side of the portion 54A is formed so as to project in a substantially triangular shape. The flange portion 54B bent up and down of the web portion 54A of the bracket 54 is fixed by welding or the like to the upper and lower flange portions 51B bent from the upright web portion 51A of the elongated beam 51 having a substantially C-shaped cross section. ing.

A joist 53 is formed on the inside of the C-shaped long beam 51.
Is inserted, and this end is brought into close contact with the web portion 54A of the bracket 54 and fixed to the bracket 54 by a nail 56 or the like. Face material 5 is provided on the upper surface of the joist 53.
7 is fixed, and the end portion of the face material 57 extends to the upper surface of the long beam 51. At this time, the end of the joist 53 is partially cut away so that it can be inserted into the elongated beam 51, but the height T of the main body of the joist 53 is lower than the height H of the elongated beam 51. The thickness of the side flange portion 51 </ b> B is subtracted from the thickness of the side flange portion 51 </ b> B, and is substantially equal to the height H of the elongated beam 51. It should be noted that small joists 58 are arranged in the notched portions of the ends of each joist 53 at right angles to the extension direction of the joists 53, if necessary.

[0006]

However, in the conventional floor panel 50 as described above, since the load applied to the face material 57 is received, the lower surface of the joist 53 is on the upper surface of the flange 51B below the elongated beam 51. It is necessary to abut. Therefore, since the height dimension T of the joist 53 is essentially equal to the height dimension H of the long beam 51, the joist 53 becomes an unnecessarily tall material and the material cost increases. .

An object of the present invention is to provide a joist mounting bracket capable of sufficiently receiving a load received from the surface material of the floor panel and the like, and capable of reducing the height dimension of the joist.

[0008]

DISCLOSURE OF THE INVENTION The present invention has been made paying attention to the fact that the height of a joist becomes unnecessarily high because the beam directly receives the load applied to the joist. The bracket for mounting joists has been improved so that the load of the joists can be received through the bracket. Specifically, it is a joist mounting bracket that connects the end of the joist placed between a pair of opposite beams of the floor panel and the joist, and a step portion, a cut-and-raised part at a dimension position shorter than the height dimension of the joist. A joist mounting bracket characterized in that a joist receiving portion for bending or the like is formed.

[0009]

In such a structure, the joists are supported by joist receiving portions provided in the middle of the brackets, and are attached to the beams via the brackets. Therefore, by appropriately setting the height position of the joist mounting portion, a joist having a necessary and sufficient height can be used, and inevitably the height dimension of the joist can be reduced.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention. In FIG. 1, a joist mounting bracket 10 according to the present embodiment is formed in a side-step substantially stepped shape, and horizontal beam fixing portions 11 and 12 are provided at upper and lower ends of the bracket 10, respectively. A step-shaped joist receiving portion 13 is integrally formed in the middle of the bracket 10.

As shown in FIGS. 2 and 3, the bracket 10 has a beam fixing portion 1 attached to a long beam 15 having a substantially U-shaped cross section.
1 and 12 are fixed by welding or the like. Long beam 15
The vertical web portion 15A is provided with flange portions 15B that are bent in the horizontal direction at both ends, and the beam fixing portions 11 and 12 of the bracket 10 are fixed to the inner side surfaces of these flange portions 15B. The end of the joist 16 is placed on the joist receiving portion 13 of the bracket 10, and the joist 16 is fixed to the side surface of the bracket 10 with a nail, a screw, or the like.
It is fixed by 7. A face member 18 for forming a floor surface is fixed to the upper surface of the joist 16.

Here, the height dimension of the elongated beam 15 is set to H.
Then, the position of the joist receiving portion 13 of the bracket 10 is
It is formed at a position higher than the lower surface of the long beam 15 by a height dimension h. Therefore, the height t of the joist 16 is equal to that of the long beam 1.
The height dimension H of the joist receiving portion 13 is shorter than the height dimension H of 5 (H-h).

According to this structure, the load applied to the face material 18 is from the joists 16 to the joist receiving portion 1 of the bracket 10.
3 to the long beam 1 via the bracket 10.
5 will be accepted. Therefore, even if the height t of the joist 16 is shorter than the height H of the long beam 15, the joist 16
The load applied to is sufficiently supported by the elongated beam 15 via the bracket 10.

According to this embodiment as described above, the joists 16
The height dimension t can be set to a necessary and sufficient dimension.
There is an effect that 6 can be made thin and the material cost can be remarkably reduced. Further, since the height t of the joist 16 can be reduced, there is also an effect that the stock space of the joist 16 can be reduced.

Further, since the height t of the joist 16 is reduced, the weight of the joist 16 can be reduced, and the weight of the floor panel using a large number of joists 16 and the building unit using the floor panel can be greatly increased. There is also an effect that can be reduced.

FIG. 4 shows a second embodiment of the present invention. Joist mounting bracket 20 according to the second embodiment
Has sideways substantially C-shapes, horizontal beam fixing portions 21 and 22 provided at upper and lower ends, and a joist receiving portion 23 formed by cutting and bending in the vicinity of a lower portion. The bent portion of the joist receiving portion 23 from the bracket 20 is provided with a reinforcing portion 24 including a bead portion having a V-shaped cross section or the like, if necessary.

The bracket 20 according to the second embodiment thus constructed is also fixed to the long beam (not shown) as in the first embodiment, and the joists (not shown) are attached to the joists by the joist receiving portion 23. It is supposed to support. In this embodiment as well, it is possible to achieve the same operational effects as those of the first embodiment.

FIG. 5 shows a joist mounting bracket 30 according to a third embodiment of the present invention. The bracket 30 is formed in a laterally convex shape in a lateral direction and has horizontal beam fixing portions 31 and 32 in the vertical direction, and a joist receiving portion formed by folding back in a folded shape on the side surface formed by the lower portion. 33 is provided.

The bracket 30 according to the third embodiment having such a structure can also achieve the same effects as those of the first and second embodiments.

The present invention is not limited to the above-described embodiments, and improvements, modifications and the like within the scope of achieving the object of the present invention are included in the present invention.

For example, the outer shape of the bracket may be another shape different from those of the above-mentioned embodiments, and the joist receiving portions of each embodiment, particularly the joist receiving portions 23 and 33 of the second and third embodiments, etc. In order to reinforce, the joist receiving part 2
An appropriate stay or a rib portion integrated with the brackets 20 and 30 may be provided between the brackets 3 and 33 and the side surfaces of the brackets 20 and 30. Further, in the first and third embodiments, a reinforcing portion or the like equivalent to the reinforcing portion 24 of the second embodiment shown in FIG. 4 may be provided at the bending position of the joist receiving portions 13, 33 and the like as reinforcement.

Further, the bracket is not limited to the one made of sheet metal as in each of the above-mentioned embodiments, but may be made of casting, plastic, or other material. However, if it is made of sheet metal, there is an effect that it can be formed at low cost. Further, the bracket according to the present invention is not limited to being applied to a floor panel in a prefabricated house of a rectangular parallelepiped unit construction method using a building unit, but can be applied to a panel construction method for producing a prefabricated house from a panel, or a floor panel of another construction method. Of course.

Further, the bracket according to the present invention is not limited to the connection between the joist and the long beam, but may be used for connecting the joist and the short beam, in short, for attaching the joist and the beam.

[0024]

According to the present invention as described above, there is an effect that it is possible to provide a joist mounting bracket capable of sufficiently supporting the load applied to the floor surface by using the joist having a short height dimension.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a side view showing a state in which the first embodiment is attached to a long beam.

FIG. 3 is a front view showing a state in which the first embodiment is attached to a long beam.

FIG. 4 is a perspective view showing a second embodiment of the present invention.

FIG. 5 is a side view showing a third embodiment according to the present invention.

FIG. 6 is a perspective view showing a building unit using a conventional joist mounting bracket.

FIG. 7 is a side view showing how a conventional joist mounting bracket is attached to a long beam.

FIG. 8 is a front view showing how a conventional joist mounting bracket is mounted on a long beam.

[Explanation of symbols]

 10 joist mounting bracket 13 joist receiving section 15 long beam 16 joist 20 joist mounting bracket 23 joist receiving section 30 joist mounting bracket 33 joist receiving section

Claims (1)

[Claims] 1. A joist mounting bracket for connecting an end of a joist arranged between a pair of opposite beams of a floor panel and the joist, wherein a joist receiving portion is formed at a position shorter than a height of the joist. Bracket for mounting joists characterized in that