JP3947472B2 - Metal fittings for buildings - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a metal fitting for a building used for joining a horizontal member such as a beam or a girder to a structural member such as a column or a trunk difference.
[0002]
[Prior art]
Engage with the slits on the joint end of horizontal members such as girders on the front side of a flat plate made of a single metal plate. Then, there is a structure in which a base end of a flat joint material made of a single metal plate that is assembled with the horizontal member is welded and continuously provided (see, for example, Patent Document 1).
[0003]
In this conventional example, since the fixing material and the joining material are made of a single metal plate, it is necessary to increase the thickness of the metal plate in order to obtain load resistance. In addition, since it requires welding means to obtain the article, it is not preferable for mass production.
[0004]
In order to avoid the disadvantages of this conventional example, the bonding material is constituted by a pair of overlapping plates that are continuous with each other via a folded portion on the free end side, and the overlapping plate of the bonding material corresponds to the free end side. There is a structure in which a single metal plate folded in the opposite direction on the base end side and formed as the fixing material is bent and measured to be suitable for mass production (for example, patents) Reference 2).
[0005]
[Patent Document 1]
Japanese Utility Model Publication No. 60-63601 [Patent Document 2]
Japanese Patent Laid-Open No. 10-159179
[Problems to be solved by the invention]
In the above-described conventional example configured by bending a single metal plate, the superposition plates are easily separated when the superposition plates constituting the joining material are simply overlapped. Welding is normal and is not necessarily suitable for mass production.
[0007]
[Means for Solving the Problems]
Engage with the slits provided at the joint end of a horizontal member such as a beam on the front side of a flat plate-like fixing material that comes into contact with the structural material such as a pillar or trunk and fastens to the structural material. To fix to the structural material or horizontal member at least a pair of tongue-like pieces on each of the left and right sides of the building joint metal with the base end of the flat plate joint material that is assembled with the horizontal member. A folding body made of a metal plate provided with an appropriate number of through-holes symmetrically between the two side portions, and a cylindrical holding cylinder assembled to the folding body, The joining material composed of a pair of superposed plates formed by bending the metal plate on a symmetry axis, and the free end side of the pair of superposed plates of the joining material along the symmetry axis leaving the tongue-like piece The bent body is composed of the fixing material which is bent at right angles in opposite directions, and on the extension of the bonding material of the bent body The tongue of the location polymerized state, and the engaging member to be fitted into the structural material by fitting the nipping cylinder with a tongue-like piece inside, those.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show an embodiment of a metal fitting for a building according to the present invention. FIG. 1 is a partially cutaway side view, FIG. 2 is a rear view, FIG. 3 is a perspective view, and FIG. 5 is a longitudinal sectional view showing the use state, and FIG. 6 is a transverse sectional view showing the use state.
[0009]
The building joint A for building according to the present invention is composed of a folded body 1 and a sandwiching cylinder 2 assembled to the folded body 1, and the folded body 1 is formed by press-molding a metal plate (steel plate or iron plate). A material plate 1a that is symmetrical to the left and right, and is fixed by bending the material plate 1a and bringing the back surface into contact with a structural member 3 such as a column or a trunk difference (the column in the figure is a column) and tightening the structural member 3 The horizontal member 5 is engaged with a material 4 and a split groove 6 provided on a joining end portion 5 ′ of a horizontal member 5 (a beam in the figure is shown) on the surface side of the fixing member 4. And a tongue-like piece 8a constituted by the sandwiching cylinder 2 constituting the engaging material 8 to be fitted into the structural material 3.
[0010]
The material plate 1a is a bilaterally symmetric metal plate as described above, and the notches 9a, the first through holes 10a, and the second through holes 11a are formed on both side portions 1a 'and 1a' defined by the symmetrical (imaginary) axis a. In addition, each of the tongue-like pieces 8a configured by providing the cuts 8b is provided symmetrically with respect to the symmetry axis a.
[0011]
Then, when the side portions 1a 'and 1a' are overlapped in the center of the material plate 1a, that is, in the mountain direction along the symmetry axis a, the side portions 1a 'and 1a', that is, a pair of overlapping plates 7a are overlapped. , 7a is formed, and the notches 9a, 9a of the side portions 1a 'provided on one end side of the symmetry axis a overlap each other and are positioned at the upper end of the bonding material 7. A pair of the first through holes 10a, 10a provided so as to constitute a receiving notch 9 and arranged along the axis of symmetry a in the notch 9a constituting the receiving notch 9 also overlap each other. 7, the insertion hole 10 for the fixing rod 12 for fixing the horizontal member 5 is configured.
[0012]
The free ends of the pair of superposed plates 7a, 7a, which pass through the base of the tongue-like piece 8a and form a bonding material 7 in a valley direction along a virtual line (indicated by reference numeral b) parallel to the axis of symmetry a. When the sides are bent in the direction of 180 ° with each other leaving the tongue-shaped piece 8a (perpendicularly in each overlapping plate 7a), the fixing member 4 is configured in which the portion is positioned in a direction perpendicular to the bonding material 7. The fixing member 4 is provided with an insertion hole 11 for penetrating the fixing rod 12A, which is formed of the second through hole 11a, and the side portion 1a is located on the extension of the base end portion of the bonding member 7. Thus, the bent body 1 is obtained by projecting from the fixing member 4 in a state where the tongue-shaped pieces 8a are overlapped with each other.
[0013]
The bent body 1 is composed of a pair of tongue-like pieces 8a, 8a superposed on each other, and a pair of protruding portions from the fixing member 4 are provided with a cylindrical holding tube 2 with the tongue-like piece 8a facing inward. The engaging material 8 is comprised by fitting, and the joining metal fitting A for buildings of embodiment can be comprised.
[0014]
Accordingly, the through hole 13 provided in the fixing material 4 and the receiving hole 14 corresponding to the contour shape (cylindrical shape) formed by the engaging material 8 projecting on the back surface side of the fixing material 4 are provided. 3, the fitting A is combined with the structural member 3 so that the engaging member 8 is engaged and positioned in the receiving hole 14, and the insertion hole 11 and the through hole 13 are formed from the surface side of the fixing member 4. The joint A is fixed to the structural member 3 by passing the tips of the through bolts 15 sequentially and screwing the tightening nuts 16 together.
[0015]
At the time of tightening the joining member A to the structural member 3 with the through bolt 15 and the tightening nut 16, the engagement member 8 having a circular cross section is tightly fitted into the receiving hole 14 on the structural member 3 side, and the tightly fitted portion Since there are a plurality of (two in the embodiment), the temporarily fixed state of the metal joint A to the structural material 3 is maintained, and the tightening operation is performed without any inconvenience.
[0016]
Next, the horizontal member 5 is combined with the bonding member 7 so that the joining member 7 of the metal fitting A is engaged with the split groove 6 formed in the joining end portion 5 ′ of the horizontal member 5. On the upper side, the latch rods 17 fixed in advance so that the slit grooves 6 are orthogonal to each other are engaged with the receiving notches 9 provided in the bonding material 7, and the horizontal member 5 is joined to the bonding material 7 of the bonding hardware A. The fixing rod 12 is attached to the insertion hole 10 provided in the bonding material 7 through the through hole 18 provided in advance on the side of the horizontal member 5 so as to coincide with the insertion hole 10 (drift pin). By joining, the joining operation is completed, and the joining state between the horizontal member 5 and the structural member 3 using the metal joint A of the embodiment can be obtained.
[0017]
【The invention's effect】
Since the present invention is configured as described above, it can be reduced in weight and is suitable for mass production (due to the lack of welding means). Of course, it can be easily applied to a metal joint bent with a single metal plate. Separation between the plywoods can be reliably prevented by the sandwiching cylinder , and the engaging material constituted by the sandwiching cylinder can provide a durable product as a reinforcing means for fixing the fixing material to the structural material, and the outer periphery has a cross section. Since it forms a circle, it can be dispersed with respect to the addition of external force. Therefore, even if the load of external force from the side of the horizontal member is concentrated, it can be dispersed to prevent damage to the structural material.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view.
FIG. 2 is a rear view.
FIG. 3 is a perspective view.
FIG. 4 is a development view of a folded body.
FIG. 5 is a longitudinal sectional view showing a use state.
FIG. 6 is a cross-sectional view showing the state of use.
DESCRIPTION OF SYMBOLS 1 Folding body 2 Clamping cylinder 3 Structural material 4 Fixing material 5 Horizontal material 6 Cutting groove 7 Joining material 8 Engaging material

Claims (1)

Engage with the slits provided at the joint end of a horizontal member such as a beam on the front side of a flat plate-like fixing member that comes into contact with the structural member such as a column or trunk and fastens to the structural member. To fix to the structural member or horizontal member at least a pair of tongue-like pieces on each of the left and right sides of the building joint metal with the base end of the flat plate member that is assembled with the horizontal member. A folding body made of a metal plate provided with an appropriate number of through-holes symmetrically between the two side portions, and a cylindrical holding cylinder assembled to the folding body, The joining material comprising a pair of superposed plates formed by bending the metal plate on a symmetry axis, and the free end side of the pair of superposition plates of the joining material along the symmetry axis leaving the tongue-like piece The bent body is composed of the fixing material which is bent at right angles in opposite directions, and on the extension of the bonding material of the bent body The tongue of the location polymerized state, and the engaging member to be fitted into the structural material by fitting the nipping cylinder with a tongue-like piece inside, the building joining hardware.

Images