JPH0329452Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a horizontal roof structure, and more specifically, an eave-side joint is formed on one side edge and a ridge-side joint is formed on the other side edge. This relates to a horizontal thatched roof structure that uses horizontally elongated steel roof plates, arranges the roof plates one above the other, and fits and engages the eave side joints and the ridge side joints to raise the roof. .

[Conventional technology]

Many different types and configurations have been proposed in the past for the connection structure between the eave side joint and the ridge side joint of the steel roof sheets in this type of horizontal roof, and the connection structure between these joints and the hangers. There is. In particular, much research has been carried out to improve the structure with the aim of preventing rainwater from entering through the joint (for example, Utility Model Publication No. 53-22430).

[Problem that the invention attempts to solve]

As mentioned above, the important point of a horizontal roof is that it can reliably prevent rainwater from entering the attic at the roof plate joints during wind and rain, and there is no risk of peeling during strong winds.
In addition, it must have sufficient structural strength to allow workers to step over it during maintenance or inspection, and it must also be easy to shape and roof. There was some regret that it was not possible to satisfy each of the requirements.

The object of the present invention is to improve the above-mentioned drawbacks and provide a horizontal roof that prevents rainwater from entering the attic and has excellent strength.

[Means for solving problems]

In order to achieve the above object, the present invention involves fitting and engaging the eave side joints and the ridge side joints formed on both sides of a horizontally long roof board so that they are on the outside and on the inside through hangers. In the horizontal roof structure to be raised, a rising slope is formed from the central flat part of the roof board to the eave side joint, and the eave side joint has a crown part that is continuous with the rising slope at a predetermined angle θ ₂ ; An edge portion formed by hanging the tip downward;
It is formed from a folded part formed by bending the tip diagonally inward and downward, and an abutting end formed by bending the tip downward, and the ridge side joint part is formed by bending the side edge of the central flat part inward upward. The folded part is folded back, and the inside thereof is a space for insertion of the folded part, and following the tip of the folded part, a first folded rising part, a first top edge, a first folded hanging part, and a bottom are formed. An edge part, a second bent rising part, a second top edge part, and a second bent hanging part are formed, and one end of the mounting part is bent and a rising part, a supporting part, and an engaging part are formed in order on the hanger. and bending the other end to form a pressure welding part, and engaging the engaging part in an engaging groove formed between the first bent hanging part and the second bent hanging part, and , the tip of the pressure welding part is brought into contact with the inner surface of the slope part, and the tip of the folded part of the eaves side joint is inserted into the space of the ridge side joint, and is brought into contact with the central flat part, and the support part and the head are brought into contact with each other. The top portion is characterized by being formed by overlapping each other through a gap that is narrower on the outer end side.

〔Example〕

Hereinafter, one embodiment of the horizontal roof according to the present invention will be described in detail with reference to FIGS. 1 and 2.

Figures 1a and b are partially cutaway perspective views of the roof shingles and hangers according to this embodiment, and Figure 2 is an enlarged view of the main parts of the roof shingles and hangers in a combined construction state. FIG.

In FIG. 1a, A is a roof board. This roof plate A is formed by bending a long metal steel plate having a predetermined width and having a predetermined width, which is coated with anti-rust baking paint, etc., into the shape shown in the figure using a roll forming machine.

Thus, the roof plate A has a flat part 1 in the center in the longitudinal direction, and an eave side joint part 2 is formed continuously on one side of the flat part 1, and a ridge side joint part 3 is formed on the other side thereof. . Then, the roof sheet A is cut into a predetermined unit length in the longitudinal direction, and at one cut end,
Moreover, a folded connection part 4 to the front side is formed on the cut end surfaces of the flat part 1 and the inclined part 7, and a folded connection part 5 to the back side is formed by bending the other cut end.

Further, to explain, the inclined part 7 is raised outwardly and upwardly from the bent edge 6 formed on one side edge of the flat part 1 at a predetermined angle (angle θ ₁ smaller than the general roof slope), It is extended to a specified length.
At the tip of the inclined portion 7, the top portion 9 is bent obliquely outward and downward by a predetermined length at an angle θ ₂ as a flow gradient through a bent edge 8.

The tip of the crown part 9 is bent downward at a right angle to form an edge part 10, and the lower edge 11 thereof is folded diagonally inward and downward to form a folded part 12, and the folded end is bent downward. The abutting end portion 13 is formed by the abutting end portion 13 .

On the other hand, the ridge side joint portion 3 forms a folded portion 14 by folding the other side portion of the flat portion 1 upward and inward, and forms a space 15 inside the folded portion 14 . Continuing from the tip of the folded portion 14, in order, a first folded rising portion 16 and a first top edge portion 1 are formed.
8, a first bent hanging portion 18a and a bottom edge portion 20,
Second bent rising portion 20a and second top edge portion 19
and the second bent hanging portion 17 are formed by bending. Further, the second top edge 19 is formed slightly lower than the first top edge 18. Furthermore, the first
Bent hanging portion 18a and second bent rising portion 20
An engagement groove 21 that is open at the top is formed between it and a.

Next, B is a hanger. This hanger B is formed by bending a steel plate, and can be fully inserted into the internal space surrounded by the crown part 9, edge part 10, and folded part 12 from the middle of the slope part 7 of the roof board A. It is bent to form. That is, in the hanger B, 22 is an attachment part formed in the center along the longitudinal direction of the horizontal roofing, and on the eave side of this attachment part 22 (the left end side in Fig. 2), there is a ridge side joint of the roof board A. A rising portion 23 extending beyond the folded portion 14 of the portion 3 toward the vicinity of the inner lower surface of the bent edge 8; A support portion 24 in contact with the first top edge portion 18 of the bent rising portion 16
The end edge of this support portion 24 is bent downward to form an engagement portion 25 that is fitted into and engaged with the engagement groove 21 . Further, on the ridge side of the attachment part 22, there is a pressure contact part 26 which stands up diagonally inward and upward and presses the tip 27 against the inner inner surface near the middle of the inclined part 7.
is formed.

As shown in FIG. 2, the roof board A and the hanger B formed as described above are assembled and engaged with each other and fixed on the roof base 28.

In other words, roofing boards, rafters,
Other specified roof bases such as steel roof members 2
8, first place the roof board A which should be located close to the eaves side. In this case, the roof sheets A and the roof sheets A that are connected in the horizontal roofing direction are connected by connecting the front side folded connection part 4 and the back side folded connection part 5 provided at both ends to each other. Combine and combine. In this case, if necessary, a waste plate (not shown) for preventing water leakage may be placed under each of the folded connection parts 4 and 5 to the front and back sides, and then the parts may be joined together.

In this way, the roof plate A located close to the eave side
After the longitudinal connection of the roof plates A is completed, insert the hanger B into the engagement groove 21 formed in the ridge side joint 3 of each roof board A.
The engaging portion 25 is inserted and engaged. Continuing,
The mounting portions 22 of the hanger B are fixed on the surface of the roof base 28 at predetermined intervals in the longitudinal direction by pegs 29 or by fastening bolts 30 with washers 31 as necessary.

Accordingly, as the engaging portion 25 is fitted into the engaging groove 21 and the attachment portion 22 is fixed to the roof base 28 surface, the first bent rising portion 16 of the ridge side joint portion 3 is 1, the support part 24 of the hanger B is attached to the top edge 18.
are pressed against each other, causing the first bent rising portion 16 to act slightly downwardly. As a result, a strong supporting function for the ridge-side joint 3 of the roof plate A is achieved, and sufficient structural strength can be maintained.

The roof plate A to be connected next to the ridge side joint part 3 of the roof plate A fixed by the hangers B as described above.
engage the eave side joint part 2 of. That is, the eave-side joint 2 of the roof board A located on the ridge side is covered so as to wrap around both the ridge-side joint 3 of the roof board A and the hanger B located on the eave side, and the folded part 1
2 into the space 15.

Along with the above-mentioned coating, the bottom edge 20 of the engagement groove 21
is pressed against the vicinity of the base of the folded portion 12, whereby the folded portion 12 and the abutting end 13
In the space 15, the bent portion 14
The object is strongly abutted against the surface of the flat portion 6 near the surface of the flat portion 6. At this time, the second bent hanging portion 17
0, and the support part 24 of the hanger B is positioned opposite to the top part 9 of the roof board A, and the end edge 27 of the pressure contact part 26 is brought close to the slope part 7. It is elastically pressed against the inner inner surface near the middle.

Further, the top of the head 9 is tapered at an angle θ so that its outer end is inclined downward, and there is a gap between the top of the head 9 and the support portion 24 of the hanger B. Polymerization occurs through the narrow gap.

Then, by this hooking engagement between the ridge side joint 3 of each roof board A and the eave side joint 2, similar to the above-mentioned engagement between the hanger B and the ridge side joint 3 of the roof board A, The strong support function and structural strength in the vertical direction of the eave side joint portion 2 and the ridge side joint portion 3, which overlap and engage with each other, are utilized more effectively and favorably.

Also, by the end face pressure contact between the abutting end portion 13 and the flat portion 1 of the roof board A, and the bending pressure contact between the folded portion 12 and the bottom edge portion 20, each joint portion 2, 3 on the eave side and the ridge side First, second, and third spaces A, B, and C are formed therebetween, and further, due to the pressure contact between the end edge 27 of the hanger B and the inner surface of the inclined portion 7, the hanger B
A closed fourth space d is also formed between the roof plate A and the roof plate A, and these first, second, third, and fourth spaces d,
B, C, and D gradually reduce the intrusion pressure of rainwater, and serve as a kind of water return space to effectively remove rainwater.

[Effect of idea]

As detailed above, the horizontal roof structure of the present invention has the following effects.

That is, the engagement by fitting the engaging part of the hanger into the engagement groove formed in the ridge side joint part of the roof board, the fixing of the attachment part of the hanger to the roof subsurface, and the ridge side By fitting the eave-side joint into the joint and inserting the folded part of the eave-side joint into the space of the ridge-side joint, each joint on the eave side and ridge side of the roof board is hooked and engaged. Furthermore, the work of engaging the hanger with the ridge side joint can be performed by an extremely simple operation, and the work of raising the horizontal roof can be easily performed.

Furthermore, at the joint between the eave side and the ridge side, the tip of the folded portion is pressed against the flat part of the roof plate, the bottom edge is pressed against the folded part, and the first top edge is pressed against the support part, A contact portion is formed by pressing the end edge of the hanger against the sloped part of the roof plate, and by butting pressure welding in line contact with each other over several stages of each pressure contact portion, and at the same time, these contact portions are Therefore, a plurality of closed water return spaces are formed in each part.

In this way, at each contact point, because of the pressure-welded line contact, unlike surface contact, the risk of water intrusion due to capillary action, etc., is effectively alleviated, and at the same time, the water return space over several stages is With the presence of a Since this is done step by step, an extremely effective and appropriate waterproofing effect can be achieved.

Further, according to the roof board joining structure as described above, the edge part and folded part of the eave side joint part, the first and second bent rising parts of the ridge side joint part, the engaging part and the pressure welding part of the hanger. Each part ensures a rigid structure in the front and back directions of the roof plate joint, and therefore, even if a worker steps on the joint for maintenance or inspection, it will not be crushed or deformed. There is no fear.

Furthermore, since the support part of the hanger and the top part of the roof board are overlapped with each other through a gap that is narrow on the outer end side, there is no surface contact, and therefore capillary phenomena etc. It is able to absorb the load applied to the top of the head without raising the head.

[Brief explanation of drawings]

Figures 1a and b are partially cutaway perspective views of a roof board and a hanger according to the present invention, and Figure 2 is a cross-sectional view of the same roof board and hanger in a combined construction state. . A...Roof board, B...hanger, 1... central flat part, 2... eave side joint, 3... ridge side joint, 7...
...Rising inclined part, 9...Top of head, 10...Edge, 12...Folded part, 14...Folded part,
15...Space part, 16...First bent part, 17...
...First bent part, 18a...First bent part, 19
...Second top edge, 20...Bottom edge, 20a...Second bent part, 21...Engagement groove, 22...Attachment part, 23...Rising inclined part, 24...Support part,
25...Engagement part.

Claims (1)

[Scope of claim for utility model registration] Eave side joints 2 formed on both sides of horizontally long roof board A
In a horizontal roof that is constructed by fitting and engaging the and ridge joint part 3 to the outside and inside through the hangers B, from the central flat part 1 of the roof board A to the eave side joint part 2. A rising slope part 7 is formed, and the eaves side joint part 2 has a crown part 9 connected to the rising slope part 7 at a predetermined angle θ ₂ , and an edge part 10 whose tip is bent downward. and a folded part 12 formed by bending the tip diagonally inward and downward, and a folded part 14 formed by bending the side end of the central flat part 1 upward and inward at the ridge side joint part 3; The inner side is a space 15 for inserting the folded part 12 that continues to the end edge part 10, and the folded part 14 is
Following the tip of the first bent rising portion 16,
A first top edge part 18, a first bent hanging part 18a, a bottom edge part 20, a second bent rising part 20a, a second top edge part 19, and a second bent hanging part 17 are formed, and on the hanger B. bends one end of the attachment part 22 to form a rising slope part 23, support part 24, and engagement part 25 in order, and bends the other end to form a pressure contact part 26, and connects the engagement part 25 to the first part. Bent hanging part 18a
and the second bent rising portion 20a, and the pressure welding portion 26
The tip of the folded part 12 of the eaves side joint 2 is brought into contact with the inner surface of the sloped part 7, and the tip of the folded part 12 of the eave side joint 2 is brought into contact with the inner surface of the ridge side joint 3.
The support part 24 and the crown part 9 are inserted into the space 15 of the roof and brought into contact with the central flat part 1, and the support part 24 and the crown part 9 are overlapped with each other through a gap whose width is narrower on the outer end side.