JPS5829206Y2 - Steel frame connection device for prefabricated houses - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for connecting steel frames in a prefabricated house with a steel frame assembly structure in which a frame is constructed by connecting steel frames such as lightweight type steel, and in particular a connection device that can quickly perform temporary assembly of steel frames. Regarding equipment.

In recent years, steel materials such as lightweight steel are cut to predetermined dimensions in factories, and steel frames such as columns and beams are perforated, welded, etc. as necessary and then connected one after another at the construction site to construct a frame. Prefabricated houses are being built all over the country, but in the past, steel frames were simply connected by passing bolts through mounting holes drilled through the connecting surfaces and tightening them with nuts.
For example, when passing a beam between two pillars, the beam is hoisted by a crane and inched while the connecting surfaces are moved closer together, and two workers who have climbed both pillars can touch the top of the beam. The method used is to insert a tapered iron rod into the mounting holes of the column and beam, pry and align the connecting surfaces, and then insert and tighten the bolts.At least, all bolts are temporarily tightened. The beams had to be suspended by a crane until the work was completed.

Therefore, it takes an extremely long time to construct a frame by sequentially connecting a large number of steel frames during work at unstable heights, and the crane truck has to be used continuously during that time. The manpower and crane vehicle usage fees required for the project accounted for a large portion of the construction costs.

In addition, since it takes a long time to construct the frame, it is necessary to accurately determine the delivery time of the steel frame so that the work does not extend into the night, which poses a major problem in construction management, especially when building in urban areas with poor traffic conditions. there were.

The present invention was devised in view of such circumstances, and its purpose is to provide a connecting device that can quickly, safely, and easily connect steel frames to each other.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

An example of the coupling device of the present invention is shown in FIGS. 1 to 3.

In the figure, a and l) are a pair of steel frames made of lightweight steel that are connected to each other, and a female connecting member 1 is fixed to a connecting surface C of one of the steel frames a by welding.

This female connecting member 1 is made of a rectangular thick plate steel, and has a fitting groove 2 cut in the center thereof with an open front and upper surface.

A horizontal bearing surface 3 is formed on the lower surface of the fitting groove 2, and tapered guide surfaces 4, 4 are formed on both side surfaces with a corresponding interval widening from the bearing surface 3 toward the opening on the upper surface, and further, The guide surfaces 4, 4 are angled at approximately 45 degrees in the front-rear direction so that the corresponding interval on the rear side (on the connection surface C side) of the front opening is widened.

Further, on both sides of the fitting groove 2, four mounting holes 5, which are co-opened with the steel frame a, are transparently provided.

Reference numeral 6 denotes a male connecting member fixed to the connecting surface d of the other steel frame, which is also made of thick plate steel, and has a horizontal abutment surface 7 formed on its lower surface, and the female connecting member 6 on both sides. Guide surfaces 8, 8 are formed which are tapered in the vertical direction at the same angle as the fitting groove 2 of No. It is angled at about 45 degrees so as to fit into the fitting groove 2 as a whole, and has a shape that fits almost tightly into the fitting groove 2.

Further, a hole 9 for welding to the steel frame is provided in the center of the lower part of the male connecting member 6, and four attachment holes 10 are provided in the steel frame on both sides of the male connecting member 6.

In the pair of male and female connecting members 1 and 6, the connecting surfaces c and d of the steel frames a and l) are made to correspond to each other, and when the male connecting portion 6 is dropped from the upper surface of the fitting groove 2 of the female connecting member 1, the abutting surface 7 comes into contact with the bearing surface 3, and the guide surfaces 8, 8 and the guide surfaces 4, 4 are engaged and are irremovably connected in any direction other than the insertion direction.

Then, as shown in FIG.
, l) are tightly coupled.

FIG. 4 shows a method for connecting columns and beams using the connecting device of the above embodiment.

In the figure, e and e are pillars erected at regular intervals, and female connecting members 1.1 are fixed to the corresponding surfaces of the upper parts of the pillars.

f is a beam that spans between columns e and e, and male connecting members 6, 6 are fixed to both ends of the beam, and when this beam f is lifted up by a crane and lowered between columns e and e, Since the male connecting members 6, 6 fit into the fitting grooves 2 of the female connecting members 1, 1, and are spanned between the columns e, as shown by the chain lines in the figure,
It may be tightened using bolts and nuts (not shown).

FIG. 5 shows a structure in which a wall frame is connected to a beam using the connecting device of the present invention.

In the figure, g is a beam, on the upper surface of which a bracket (h) with an inverted cursor-shaped cross section is fixed by welding, and the female coupling member 21 of the coupling device of the present invention is fixed on both sides of the vertical plate.

This female connecting member 21 is the female connecting member 1 of the example in FIGS.
It has the same shape as , but is different in that the mounting hole 23 is transparently provided in the center of the fitting groove 22 and below it.

Reference numerals ``i'' and ``i'' denote wall frames made of lightweight steel, with male connecting members 26 and 26 fixed to the lower part of the corresponding surfaces, and mounting holes 27 transparently provided in the upper and lower parts thereof.

In this embodiment, the wall frames i, i are brought close to both sides of the vertical plate of the bracket h, and the male connecting member 26 is connected to the female connecting member 21.
By inserting the screw into the fitting groove 22 and connecting it, passing the bolt 28 through the mounting hole 23.27 and tightening it with the nut 29,
The wall frames i on both sides are connected to the beam g via brackets h.

FIG. 6 shows a structure in which an eave arm is connected to a beam using the connecting device of the present invention.

In the figure, j is a beam made of a steel frame with a U-shaped cross section, and mounting plates k are fixed to the open surface of the beam at appropriate intervals, and female connecting members 31 are fixed to the mounting plates k.

This female connecting member 31 is the female connecting member 1 of the example in FIGS.
The fitting groove 32 is formed to be small, and the mounting hole 33 is formed transparently in a square shape since it is for supporting a relatively lightweight arm m.

An end plate n is fixed at an oblique angle to the base end of each arm m,
A male connecting member 36 is fixed to this end plate n, and mounting holes 37 are transparently provided in the squares of the end plate n.

In this embodiment as well, as in each of the above embodiments, by fitting the male connecting sound aperture into the fitting groove 32 of the female connecting member 31, the arm m is attached to the beam j with its tip slightly lowered. They are connected and tightened by bolts and nuts passed through the mounting holes 33,37.

As clarified by the above explanation, the connecting device of the present invention fixes a pair of male and female connecting members to corresponding connecting surfaces of a pair of steel frames that are connected approximately horizontally, and the female connecting member has an open front and upper surface. A fitting groove with a bearing surface formed on the lower surface is formed, and guide surfaces with a corresponding distance increasing upwardly are formed on both sides of the fitting groove, and The gap is formed such that the width is wider at the rear than the front opening, and the male connecting member is formed with guide surfaces on both sides that almost tightly fit into the guide surfaces of the fitting groove of the female connecting member, is formed with an abutting surface that abuts the bearing surface, and the male connecting member is fitted into the fitting groove of the female connecting member from above to connect the pair of steel frames, The opening of the fitting groove of the female connecting member is wider than the width of the lower surface of the female connecting member, and the guide surface of the female connecting member and the guiding surface of the female connecting member have a tapered shape, so it is difficult to get a very rough estimate. It is possible to connect the fixed steel frame of the female connecting member by simply dropping it along the fixed steel frame of the female connecting member, and even unskilled lane operators and assembly workers can connect it very easily and quickly. Moreover, the framework can be safely constructed, and the construction period is significantly shortened, and the construction cost is also greatly reduced.

In addition, if a pair of male and female connecting members are fitted together, the connection will be maintained by the weight of the steel frame, so this is sufficient for temporary assembly. The bolt tightening work can be done without using a crane truck, which is extremely advantageous in terms of construction.Furthermore, since the coupling device of the present invention itself has a strong bonding force, bolts and rivets for final tightening can be used. It is possible to make the diameter smaller or reduce the number of pieces, resulting in various effects such as cost reduction.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an example of a pair of male and female connecting members that constitute a component of the present invention, FIG. 2 is a cross-sectional view of the connected state of the pair of female and male connecting members shown in FIG. 1, and FIG. Figure 2 A-A
A line sectional view, FIG. 4 is a front view of an applied example, and FIGS. 5 and 6 are exploded perspective views of other applied examples. 1.21.31: Female connecting member, 2, 22.32: Fitting groove, 3: Supporting surface, 4: Guide surface, 6: Female connecting member, 7:
Abutment surface, 8: Guidance surface.

Claims (1)

[Scope of claim for utility model registration] An assembled house in which a frame is constructed by cutting steel materials such as lightweight steel into predetermined dimensions and connecting steel frames such as columns and beams that have been subjected to drilling, welding, etc. as necessary. In this method, a pair of male and female connecting members are fixed to corresponding connecting surfaces of a pair of steel frames that are connected approximately horizontally, and the female connecting member has an open front and upper surface and a fitting groove with a bearing surface formed on the lower surface. A guide surface is formed on both sides of the fitting groove, and the corresponding interval is widened upward.
Further, the corresponding spacing between the two guide surfaces is formed such that the rear side is wider than the front opening, and the male connecting member is almost tightly fitted into the fitting groove ρ guide surface of the female connecting member on both sides. a guiding surface is formed on the lower surface thereof, and an abutting surface that abuts the bearing surface is formed on the lower surface, and the male connecting member is fitted into the fitting groove of the female connecting portion from above to connect the pair of steel frames. A steel frame connection device for a prefabricated house, characterized by having the following configuration.