JPS6343299Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to metal barrel wood used in lightweight steel-framed buildings and the like.

[Conventional technology]

Conventionally, a metal barrel 1 having a substantially convex cross section as shown in FIG. 1 has been known. The stepped portions 2 formed on both sides of the upper part of the metal tarp 1 are for spanning and fixing the roofing board 4 for supporting the roofing material 3.

[Problem that the invention attempts to solve]

However, the conventional metal barrel 1 has the following drawbacks.

First, the top of the metal tarp 1 must be flat with the top surface of the shedding board 4 in order to be covered with the roofing material 1. Since various thicknesses such as thick wood wool boards are used, it is necessary to prepare various metal barrels 1 with different heights of the stepped portions 2 according to the thickness of the roof board 4. be.

Second, the roofing material 3 is usually fixed to the metal talus 1 with metal screws 5 either directly as shown in the figure or via hangers (not shown); If the thickness of the roof is thin, the metal screws 5 will easily come out of the metal barrel 1, and there is a risk that the roof will be blown off by strong winds such as during a typhoon. This problem can be solved by forming the metal barrel 1 from a thick metal plate, but if the entire metal barrel 1 is made thicker, the weight will increase, making it undesirable as a roof structure for a building, and it is also uneconomical. .

Thirdly, when placing heat insulating materials, sound absorbing materials, etc. between the metal barrels 1 installed in parallel, the height of the metal barrels 1 should be increased to some extent in order to form a space that can accommodate these materials. Although it is necessary, if the height relative to the width becomes too large, the installation stability tends to deteriorate. This problem can be resolved by increasing the width of the metal barrel 1, but if the width of the conventional metal barrel 1, which has vertical sides, is increased, the amount of material required to form the metal barrel 1 increases. The amount of increase is large, causing high costs.

[Means for solving problems]

The means taken to solve the above problems will be explained with reference to FIG. 2, which corresponds to an embodiment of the present invention. It has a cap 1b whose lower legs are bent outward substantially horizontally to form a receiving part 8, and the cap 1b is placed on the upper part of the main body 1a, and both legs are elastically pushed apart. Fitting grooves 11 are provided on both outer surfaces of the main body 1a and on both inner surfaces of the cap 1b.
A measure is taken in which the metal barrel 1 is engaged with the fitting protrusion 12.

[Effect]

To explain the operation of the present invention with reference to FIG. 3, the receiving part 8 provided on the cap 1b of the metal barrel 1
serves to support the flooring board 4.
That is, since the shedding board 4 is hung on the receiving part 8 of the cap 1b, if the length of the legs of the cap 1b is matched to the thickness of the shedding board 4, the main body 1 can be hung.
A can be applied to roof boards 4 of various thicknesses without any modification.

The cap 1b in the metal barrel 1 serves to increase the thickness of the top of the main body 1a. That is, the top of the metal barrel 1 is doubled with the main body 1a and the cap 1b, and constitutes a substantially large thick part.

The main body 1a of the metal barrel 1 has a downward U-shaped cross section that widens at the end, so even if the height is increased, the installation stability is relatively good, and even if the width is increased, the The amount of additional material required for filling is relatively small.

By the way, if the main body 1a of the real metal barrel 1 has a shape that widens at the end, the cap 1b
will come off easily. Therefore, in this invention, the main body 1a
A fitting groove 11 and a fitting protrusion 12 are provided between the cap 1b and the cap 1b.
In addition, the cap 1b is fitted into the upper part of the main body 1a by elastically spreading its legs apart, and the elastic return force of both legs of the cap 1b is determined by the fitting groove 11. and mating protrusion 1
It plays the role of holding the two together. Furthermore, maintaining the integration of the main body 1a and the cap 1b as described above through the engagement of the fitting grooves 11 and the fitting protrusions 12 allows the cap 1b to be attached to and removed from the main body 1a.

〔Example〕

FIG. 2 is a perspective view showing an embodiment of the metal barrel 1 according to the present invention, and FIG. 3 is a sectional view of a roof using the same.

In the figure, reference numeral 1a denotes a main body, which has a downwardly U-shaped cross section with a widening end, and the lower portions of both legs are bent outward substantially horizontally to form a mounting portion 6. Fitting grooves 11 are formed on both outer surfaces of the upper part of the main body 1a. Further, holes 7 for passing electrical wiring, etc., are formed at appropriate intervals on the side surface of the main body 1.

On the other hand, 1b is a cap, which has a downward U-shaped cross section, and the lower portions of both legs are bent outward substantially horizontally to form a receiving portion 8. Fitting protrusions 12 are formed on both inner surfaces of the cap 1b in correspondence with the fitting grooves 11 of the main body 1a.

The cap 1b may have a downward U-shape with a widening end or a downward U-shape with a constriction at the end. Both legs are elastically pushed apart and fitted into the upper part of the main body 1a. Then, along with the above-mentioned fitting, the fitting groove 1 of the main body 1a is
1 and the fitting protrusion 12 of the cap 1b are engaged with each other, and this engagement is firmly maintained by the elastic restoring force of both legs of the cap 1b.

As shown in FIG. 3, the metal barrel 1 according to the present invention has its mounting portion 6 fixed to the purlin material 9 with metal screws 5, and the receiving portion 8 of the adjacent metal barrel 1.
A roofing board 4 is stretched and fixed in between, and a roofing material 3 is further placed on top of it. In addition, 10
is the ceiling material.

[Effect of idea]

The present invention is as explained above, and has the following effects.

(1) If caps 1b are prepared with various leg lengths to match the thickness of the sheathing board 4, only one type of main body 1a is needed no matter what the thickness of the shedding board 4, and a large number of caps can be produced. It is easy to reduce production costs.

(2) The roofing material 3 is fixed to the top of the metal barrel 1 with metal screws 5, but the top of the metal barrel 1 is doubled by the main body 1a and the cap 1b, and is essentially Since it has a large thick part, there is no fear that the metal screw 5 will come off, and it is safe even in strong winds. Further, the thickness of the metal plate constituting the main body 1a is sufficient as long as it can maintain the required strength, and the thickness adjustment required to prevent the metal screw 5 from coming off is determined by the thickness of the metal plate constituting the cap 1b. Since it is not necessary to increase the overall thickness of the main body 1a to prevent the metal screws 5 from coming off, a roof that is lightweight and has excellent strength can be obtained.

(3) The main body 1a has a widening cross-section in order to improve installation stability and to minimize the increase in the amount of material required when the installation width is widened, but the elastic return force of both legs of the cap 1b Since the fitting groove 11 and the fitting protrusion 12 are tightly engaged with each other, the cap 1b will not come off from the main body 1a during transportation or installation work. Therefore, in particular, real metal barrels of different lengths 1
When transporting the main body 1a and cap 1b, the cap 1b comes off and the main body 1a and cap 1b are of the same length.
By recombining the parts on site, you can prevent unnecessary trouble. In addition, when carrying the metal barrel 1 to the roof, the cap 1b comes off and falls, and when a worker climbs onto the roof to which the metal barrel 1 is attached, the cap 1b lifts up from the main body 1a. This prevents you from getting distracted by the work, and improves work efficiency.

(4) Since the cap 1b is removable from the main body 1a, when the thickness of the shedding board 4 changes, the cap 1b can be replaced on site.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of a roof using conventional metal barrel wood, Figure 2 is a perspective view showing an embodiment of metal barrel wood according to the present invention, and Figure 3 is a cross-sectional view of a roof using the metal barrel wood. be. 1: Metal barrel wood, 1a: Main body, 1b: Cap, 8: Receiving portion, 11: Fitting groove, 12: Fitting protrusion.

Claims (1)

[Scope of utility model registration request] It has a main body having a downward U-shape with a widening end in cross section, and a cap having a downward U-shape in cross section, and the lower portions of both legs are bent outward substantially horizontally to serve as a receiving part, and on the upper part of the main body, A metal cap characterized in that both legs are elastically pushed apart and fitted together, and fitting grooves and fitting ridges provided on both outer surfaces of the main body and both inner surfaces of the cap are engaged with each other. Tar tree.