JPH11124939A - Joist support bracket - Google Patents

Abstract

(57) [Problem] To provide a metal fitting having good workability for fixing and supporting a joist 3 on a steel pulley 2 provided with a flange 21. A joist supporting bracket 1 includes a joist receiver 4 and a clip 5, and the joist receiver 4 is formed by bending a strip-shaped plate body into an L-shaped cross section to form an upright portion 41 and a bottom portion 42. The screw 41 is provided with a screw through hole 410 for screwing the joist 3 with the screw 61 or the like, while the clip 5 is fixed to the upper surface of the bottom portion 42 of the joist receiver 4 with the clip part 5. An elastic plate extending to the side of 4 is folded back below the joist receiver 4 to form a clip piece 52, and the tip 53 of the clip piece 52 is folded back downward. The clip 5 can sandwich the upper flange 21 on the large pulley 2 at an arbitrary position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joist supporting bracket for fixing and supporting a joist to a steel pulley in a floor set of a building.

[0002]

2. Description of the Related Art When a floor structure of a building is mainly composed of shafts such as large pulls and joists, the large pulls are made of steel to secure strength and durability, and wooden or wooden structures are further placed thereon. A steel joist is mounted. An H-section steel is often used for the steel pulling. The method of locking the pulling and the joist has conventionally been as follows.

[0003] That is, the joist is directly screwed into a large pull, or a screw through hole is formed in advance in both the pull and the joist, and both are bolted together.

In some cases, an auxiliary member for joining the joists is fixed at a predetermined position on the upper surface of the upper flange, and the joists are sometimes attached to the auxiliary members. As the auxiliary member, an L-shaped section such as a flat plate or a section of an angle iron is often used, and its fixing method is generally welding or bolting.

[0005]

However, in the method of directly screwing, it is necessary to use a tapping screw or the like.
When the joist height is large, it is necessary to use a screw having a long shaft. In the method using the bolt connection and the auxiliary member, beforehand,
It was necessary to perform some processing such as drilling and welding. In addition, the positioning when fixing the joists and the auxiliary members was required to be accurate, and the workability was not good. Furthermore, when drilling is performed extensively, the strength of the member may be impaired.

Accordingly, an object of the present invention is to provide a metal fitting having good workability for fixing and supporting a joist on a steel pulley in order to improve the disadvantages and inconveniences as described above. It is in. Also, if a gap is formed at the joints of the members due to expansion and contraction or deformation of the members of the floor set, so-called floor noise often occurs when the joints are rubbed or squeaked by the load or vibration on the floor surface. Floor noise tends to occur particularly when wood with large expansion and contraction is used for the shaft member and the plate member, or when a contact surface between metals is provided at a joint between members and components. Thus, a second object of the present invention is to reduce floor noise when using the above joist support fitting.

[0007]

In order to achieve the above object, a joist supporting bracket according to the present invention is a metal fitting for fixing and supporting a joist on a steel pulley having a flange. ,
A joist receiver to which the joist is applied, and a clip for attaching the joist receiver to the upper flange of the large pulley are provided. The joist receiver is formed by bending a strip-shaped plate into an L-shaped cross section to form an upright portion and a bottom portion. The upright portion is provided with a screw through hole for fixing the joist, while the clip is fixed to the upper surface of the bottom portion of the joist receiver and extends from the substrate portion to the side of the joist receiver. The protruded elastic plate is folded back below the joist receiver to form a clip piece, which is formed so as to approach the joist receiver and whose tip is bent downwards. Thing,
The clip is characterized in that the large flange can be sandwiched from the side.

In order to achieve the second object, the joist support of the joist supporting metal has a first cushioning material adhered to the bottom surface of the upright portion and a screw through hole of the upright portion. A packing is fitted inside, and a second cushioning material is attached to the upper surface of the clip.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration and a shape of a joist supporting bracket 1 according to the present invention, and FIGS. 2 and 3 show a use state of the joist supporting bracket 1.

In this case, a joist supporting bracket 1 is mounted on an H-shaped steel pulley 2, and a wooden joist 3 is applied to the joist supporting bracket 1 and secured thereto.

The joist support 1 has a joist receiver 4 to which the joist 3 is applied, and a clip 5 for attaching the joist receiver 4 to the upper flange 21 of the pulley 2.

The joist support 4 is formed by bending a strip-shaped metal plate into an L-shaped cross section.
And a bottom portion 42. The upright portion 41 is provided with screw through holes 410 and 410 at two locations on the center axis, and the joist 3 is applied to the upstanding portion 41, and the screw 61 and the like can be screwed and fixed to the joist 3. It has been made like that. A cylindrical packing 70 having an outer diameter substantially equal to the inner diameter of the screw through hole 410 is fitted inside the screw through hole 410 so that the contact between the screw 61 and the upright portion 41 is buffered. It has been done. Further, a first cushioning material 71 formed in a flat plate having substantially the same size as the upright portion 41 is attached to a side surface of the upright portion 41 facing the bottom portion 42.

On the other hand, the clip 5 is formed by processing another plate body which is slightly thinner than the joist receiver 4 and has elasticity. The clip 5 has the substrate portion 51 stacked on the upper surface of the bottom portion 42 of the joist receiver 4 together with a second cushioning material 72, which will be described later, and is fastened with two rivets 62, 62. And
The side of the joist receiver 4 from the substrate part 51, that is, the joist receiver 4
The portion extending in one of the folding curve directions is folded back below the joist receiver 4 to form a clip piece 52.
The tip side of the clip piece 52 is the bottom 4 of the joist receiver 4.
2, the plate width is made a little smaller, and the front end portion 53 is bent backward to make it easy to sandwich the flange 21 of the large pulley 2.

However, the minimum distance c between the clip piece 52 and the lower surface of the bottom 42 of the joist receiver 4 is made slightly smaller than the thickness d of the flange 21 of the large pulley 2, as shown in FIG. ing. The length g of the clip piece 52 is
The width f is slightly shorter than the width f of the lower surface on one side of the flange 21 of the large pulley 2.

On the upper surface of the portion where the bottom portion 42 of the joist receiver 4 and the substrate portion 51 of the clip 5 overlap, a bottom portion 4 is provided.
A second cushioning material 7 formed in a plate shape having substantially the same size as 2
2 is affixed.

Referring to FIG. 4, the structure of a floor group using the joist supporting bracket 1 and a method of constructing the floor group will be described.

First, at a predetermined position between a plurality of foundations 81,
A steel pulley 2 using an H-section steel is arranged. A substantially rectangular end plate 23 including the entire cross section perpendicular to the axial direction is joined to both ends of the large pulley 2. The locking members 2 having an L-shaped cross section are provided outside the end plates 23 at both ends.
4 are joined. The locking member 24 has a hanging part 25 in contact with the end plate 23 and a horizontal part 26 orthogonal to the hanging part 25 and protruding outward in the axial direction. By locking the horizontal portion 26 on the foundation 81, the pulling pulley 2 is mounted between the plurality of foundations 81. The horizontal portion 26 is provided with two bolt through holes 27 each,
1 is provided in the bolt through hole 2.
7, the position of the large drawer 2 is determined.
A base 83 is overlaid on the pulling pulley 2 and is integrally fixed by an anchor bolt 82.

The joist 3 is provided on the upper surface of the upper flange 21.
Are marked, and the required number of joist support fittings 1 are attached to the pulley 2 in accordance with this. This attachment is performed by applying the joist supporting metal fitting 1 so that the upper flange 21 of the pulling pulley 2 is held by the distal end portion 53 of the clip 5 and hitting the back side of the clip 5 with a hammer or the like.
You can just type Even if the position or angle of the joist support 1 is slightly deviated, it is possible to correct it while tapping lightly. The joist 3 is mounted on the joist supporting bracket 1 arranged in the same direction and position, and is attached to the standing portion 41 of the joist receiver. At this time, the position of the joist support 1 can be finely adjusted. Then, the joist 3 is fixed on the large pulley 2 by being screwed from the opposite side of the upright portion 41 with screws. A floor material 9 is laid on the joist 3.

According to such a structure and a construction method,
Floor construction work can be performed easily and efficiently without special processing in advance for the pulling pulley 2 and the joist 3.
The mutual position adjustment of the pulling pulley 2 and the joist 3 is also facilitated by using the joist support fitting 1. The joist 3 may be made of wood or steel.

Next, the operation of the cushioning material and the packing will be described with reference to FIGS.

The cushioning members 71 and 72 are attached to the contact portion between the joist support fitting 1 and the joist 3, ie, the side surface of the upright portion 41 and the upper surface of the clip 5. The packing 70 is also fitted into the screw through hole 410 into which the joist 3 is screwed, so that the contact between the screw 61 and the joist support fitting 1 is buffered. As a result, a slight dimensional change due to shrinkage of the wooden joist 3 or the like is absorbed by the elastic deformation of the packing 70 and the cushioning materials 71 and 72. Further, since the joist 3 and the metal part of the joist supporting bracket 1 are not in direct contact with each other, the load and vibration applied to the floor surface are also absorbed by the joist supporting bracket 1 while being transmitted from the joist 3 to the pull-out 2. Is done. As a result, it is possible to suppress floor noise caused by friction and creaking at the joints of the members. These packings 70 and cushioning materials 71, 72
The material used for the above is desirably a synthetic polymer material having excellent weather resistance, aging resistance, flame retardancy, workability, economy, and the like. Specifically, a synthetic rubber material, for example, chloroprene rubber, ethylene propylene rubber, or the like is suitable.

In the above embodiment, the joist support 4
When viewed from the open side of the L-shaped cross section, the clip 5 extends leftward toward the bottom 42. However, the clip 5 may extend rightward as shown in FIG. It is more convenient if both the right type and the left type are prepared, and it is also possible to use them properly according to the shape of the members and the parts to be used. In addition, the standing portion 41
4B, it is convenient if a plurality of different types of objects corresponding to the size of the joists 3 are prepared as shown in FIG.

[0024]

According to the first aspect of the present invention, the joist supporting bracket can be attached largely just by sandwiching the upper flange with the clip. The clip piece part of the clip has an elastic plate folded back under the joist support, and its tip is bent back downward, so it is easy to pinch the large flange simply by tapping lightly it can. Therefore, it is possible to easily and efficiently dispose and attach the joist support bracket to any position of the pulling bar without performing special processing on the pulling bar in advance. As a result, the workability of floor construction is improved.

According to the joist supporting bracket of the second aspect of the present invention, the cushioning material is attached to the contact surface between the joist supporting bracket and the joist, and the packing is also provided in the screw through hole for screwing the joist. It is inserted. For this reason, a slight dimensional change of the member is absorbed by the cushioning material and the packing, and the load and vibration applied to the floor surface are buffered, so that it is possible to suppress floor noise caused by friction and squeak of the joint portion of the member.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration and a shape of a joist supporting bracket according to the present invention.

FIG. 2 is a perspective view showing a use state of a joist support bracket.

FIG. 3 is a side view showing a use state of the joist support bracket;
(A) is a view as viewed from the joist direction, and (b) is a view as viewed from the pulling direction.

FIG. 4 is a perspective view showing a structure of a floor group using a joist support.

FIG. 5 is a perspective view showing another embodiment of the joist support fitting.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 joist support bracket 2 large pull 21 upper flange 3 joist 4 joist receiver 41 erecting part 410 screw hole 42 bottom 5 clip 51 board part 52 clip piece part 53 tip part 61 screw 70 packing 71 first cushioning material 72 second Cushioning material

Claims (2)

[Claims] 1. A metal fitting for fixing and supporting a joist on a steel pulley with a flange, wherein the joist receiver to which the joist is applied and the joist receiver are attached to the upper flange of the pulley. The joist receiver has a rectangular plate-like body bent into an L-shaped cross section to form an upright portion and a bottom portion. The upright portion has a screw through hole for fixing the joist. On the other hand, in the clip, the base plate portion is fixed to the upper surface of the bottom portion of the joist receiver, and an elastic plate extending laterally from the base plate portion to the side of the joist receiver is folded back to the lower side of the joist receiver to form a clip piece. This clip piece is formed so as to approach the joist receiver, and the tip of the clip is bent downward.
A joist supporting bracket characterized in that a large upper flange can be sandwiched from the side. 2. The joist receiver has a first cushioning material attached to a surface on the bottom side of the upright portion, and packing is fitted inside a screw through hole of the upright portion, while a top surface of the clip is provided. 2. The joist supporting bracket according to claim 1, wherein a second cushioning material is affixed to the buckle.