JPH0358614B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a connected structure in which horizontal roof plates made of long metal plates are connected in the direction of the eaves.

[Conventional technology]

BACKGROUND ART Conventionally, many types and configurations of horizontal roof panels made of long metal plates such as steel plates have been proposed. Especially after the rain,
That is, there is active development of combination engagement part shapes intended to prevent rainwater from entering from the eave side and ridge side engagement parts that are engaged and connected to each other.

Conventional examples of the above-mentioned horizontal roof panels and their connection structures are shown in Figs. 3 and 4, and Figs. 5a and b.
I will explain about it.

FIG. 3 is a cross-sectional perspective view showing the horizontal roof panels used in this conventional example, and FIG. 4 is an enlarged cross-sectional view showing a connection structure in which the horizontal roof panels are connected in the direction of the eaves.

In FIGS. 3 and 4, the horizontal roof shingles 1 are as follows:
For example, using a long metal steel plate of a predetermined width that has been painted with anti-corrosion baking paint, this metal steel plate is processed using a roll forming machine or the like, leaving the face plate part 2 in the center in the width direction, and attaching the eaves side plate to the eave side. A joint part 3 and a ridge-side engaging part 4 are continuously formed on the ridge side.

The eave side engaging portion 3 is provided with a hanging portion by bending the crown portion 5 slightly diagonally outward downward to a predetermined length from the eave side portion side of the face plate portion 2, and bending the top portion downward from the tip thereof. 6 is formed, and is folded upward in an arc shape from the lower edge 7 toward the ridge side to form a folded part 8, and an edge bent part 9 is formed at the folded end.

The ridge-side engaging portion 4 includes a holding portion 1 so as to be able to hold the edge bending portion 9 from the other side of the face plate portion 2.
0 is bent diagonally upward on the eaves side, a protruding piece 11 is raised upward from its tip, and its protruding edge 12 is made to protrude downward on the eaves side.

In this conventional example, on the rafters 13, a wooden wool board 14 as a backing material is placed inside the inner space of the roof board 1 on the eave side, and is then attached using a hanger or the like. Next, the eave side engaging part 3 of the eave side roof board 1 is engaged and connected to the eave side engaging part 4 of the eave side roof board 1, and this engagement assembly is carried out sequentially from the eave side to the ridge side. The desired horizontal roof is thatched repeatedly.

That is, more specifically, as shown in FIG. 4, the eave-side engaging part 3 of the ridge-side roof board 1 is fitted onto the ridge-side engaging part 4 of the eave-side roof board 1, and the eave-side engaging part 3 of the ridge-side roof board 1 is held The edge bending part 9 including a part of the folded part 8 is inserted into and engaged with the part 10, and the inner surface of the hanging part 6, that is, the ridge side surface is brought into contact with the eave side edge of the ridge 12 and connected.
In this connection structure, the edge bending part 9 is held in the holding part 10, the lower edge 7 of the hanging part 6 is in line contact with the surface of the face plate part 2, and the upward curving of the folded part 8 A first reduced pressure space 15, a second reduced pressure space 16 within the holding portion 10, and a third reduced pressure space 17 between the hanging portion 6, the protruding piece 11, and the protruding edge 12 are formed, respectively.

As is clear from the above structure, the basic concept of the conventional connection structure is that the ridge-side engaging portion 4 is raised from the eave-side face plate portion 2, and the eave-side engaging portion of the ridge-side face plate portion 2 is The joint portion 3 is connected to the contact portion 18 exposed to the outside thereof.
are fitted and engaged so as to form a line contact on the face plate portion 2, thereby preventing rainwater from entering from the contact portion 18 and reducing the pressure of rainwater entering into each decompression space. Efforts are being made to reduce the pressure.

In the above-mentioned conventional connecting structure of horizontal roof plates made of long metal plates, the contact portions 18 of the eave side and ridge side engaging portions 3 and 4 are in contact with the face plate portion 2 and are approximately in contact with each other. It exists in the corners of internal angles that stand up at right angles. Therefore, in the case of strong wind and rain, for example, as shown by the arrow in FIG. The wind and rain pressure concentrates in the vicinity of and bounces upward along the hanging part 6.

Examining the effects of wind and rain pressure on the contact portion 18 at this time, as shown in FIGS. Combined pressure 2 of each pressure
1 will come into play.

Therefore, depending on the wind and rain pressure 19, there is a risk of infiltration from the contact portion 18 into the interior of the roof due to capillary action in the state shown in FIG. 5a. For this reason, in the abutting portion 18, in order to avoid the capillary phenomenon as much as possible, and also to absorb errors in molding accuracy and facilitate assembly, the contact portion 18 is generally Surface contact at the contact portion 18 is avoided, and the line contact described above is used. but,
Depending on the wind and rain pressure 20 and the combined pressure 21, an effect occurs that lifts the hanging part 6 upward, pushing the abutting part 18 open, increasing the gap between the butts, and preventing infiltration into the interior. The disadvantage is that fear increases.

In normal cases, the strong wind and rain that is concentrated on the contact portion 18 is mainly caused by sand,
It is accompanied by mud, dust, etc., and along with rainwater, etc., these also enter and accumulate inside the roof, causing corrosion inside. In cold regions, the rainwater and snowflakes that have entered freeze and expand, causing damage to the contact parts. 〓This led to an even larger gap.

FIG. 6 is a cross-sectional view of another conventional horizontal roof board connection structure disclosed in Japanese Patent Application Laid-Open No. 60-10051.

In this conventional roof plate 51, a protruding strip 55 having a semicircular cross section is formed on the ridge side edge of the face plate portion 52, and a lower side portion 56 on the ridge side of the protruding strip 55 is on the same plane as the face plate portion 2. A ridge side engaging portion 54 having a U-shaped cross section is provided, and a hanging portion 57 is formed on the eave side edge of the face plate portion 52.
A folded portion 58 bent toward the ridge at the lower edge of the hanging portion 57
An eaves-side engaging portion 53 is provided with an inclined portion 59 extending upwardly from the ridge side through the eave-side engaging portion 53 .

Then, the eave side engaging portion 5 of the ridge side roof sheet 51 is placed on the protruding strip 55 of the ridge side engaging portion 54 of the eave side roof sheet 51.
By bringing the folded portion 58 of No. 3 into contact with each other, and by engaging and supporting the tip edge of the inclined portion 59 continuous to the folded portion 58 with the upper corner of the lower side portion 56 of the ridge side engaging portion 54 from diagonally below the eave side. , a roof plate 51 on the eave side and a roof plate 51 on the ridge side are connected.

[Problem that the invention seeks to solve]

The conventional horizontal roof board connection structure shown in FIG. The folded part of the roof plate is in contact with the folded part of the roof plate, and at this contact part, the protruding part and the folded part are in line contact, and the abutting part is located above the face plate of the eave-side roof plate. Rainwater is less likely to accumulate in the contact portion, and dust accompanying the rainwater is less likely to accumulate. However, since the cross section of the protruding strip is semicircular, and the lower side of the ridge-side engaging part that connects to the ridge side of the protruding strip is located on the same plane as the face plate, the protrusion of the roof plate on the eave side Due to manufacturing errors of the roof plate, etc., the contact area between the strip and the folded part of the eave side engaging part provided on the roof plate on the ridge side
If there are gaps and rainwater gets inside, it will be difficult to drain the rainwater to the eaves side of the protruding strips, even if the roof is sloped. For this reason, rainwater and the accompanying dust accumulate at the corner between the ridge side edge of the protruding strip and the lower side of the ridge side engagement part, causing dust to accumulate and the roof sheets to rust. There was a problem.

This invention solves the above-mentioned problems and provides an outer contact portion between an eaves-side engaging portion provided on an eave-side roof plate and a ridge-side engaging portion provided on a ridge-side roof plate, and It is an object of the present invention to provide a connecting structure for horizontal roofing plates, which prevents rainwater and accompanying dust from accumulating or accumulating inside a contact part.

[Means for solving problems]

The horizontal roof board connection structure according to this invention has the following features:
A ridge-side engaging portion and an eave-side engaging portion are respectively provided on the ridge side and the eaves side of the face plate portion formed at the center portion in the width direction of the long metal plate, and the ridge-side engaging portion is provided with a ridge side engaging portion on the ridge side of the face plate portion. A rising part that is bent upward from the edge, a receiving part that is bent from the upper edge of the rising part towards the ridge side, a ridge-side sloped part that is bent upward from the ridge-side edge of the receiving part, and a ridge-side sloped part. An engagement holding part is formed by bending and extending from the ridge side edge of the face plate part to the ridge side and folded back obliquely upward to the eave side through the curved part, and the eave side engaging part includes a part extending from the eave side edge of the face plate part below the eave side edge. A bent hanging part, a folded lower part folded back from the lower edge of the hanging part towards the ridge side to a dimension shorter than the receiving part, and a folded lower part folded from the ridge side edge of the folded lower part upward to the ridge side to a longer dimension than the ridge side sloped part. The eaves are equipped with a horizontal roof plate formed with a bent eave-side sloped part and an engaging protrusion that is bent from the ridge-side edge of the eave-side sloped part to the ridge side and folded back to the eave side via the curved part, The engagement protrusion of the eave-side engagement part provided on the ridge-side roof plate is held in surface contact with the eave side of the engagement-holding part of the ridge-side engagement part provided on the side roof plate, The outer surfaces of the rising part of the ridge side engaging part and the hanging part of the eave side engaging part are arranged on the same plane, and the eave side engaging part is folded over the eave side edge of the receiving part of the ridge side engaging part. The lower eave side edges are in line contact and abut, and on the ridge side of this abutting part, the folded lower part of the ridge side engaging part, the eave side sloped part and the engaging protrusion, and the ridge side engaging part. A space portion is formed surrounded by the receiving portion, the ridge side slope portion, and the portion of the engaging holding portion that projects toward the eaves below the engagement projection.

[Effect]

The horizontal roof board connection structure according to this invention has the following features:
On the eave side edge of the receiving part bent toward the ridge from the upper edge of the rising part of the ridge side engaging part provided on the eave side roof board, and on the eave side engaging part provided on the ridge side roof board. Since the edge of the eaves at the bottom of the flap is in line contact, this contact area is located above the face plate of the eaves side roof plate, so rainwater etc. It is difficult for dust and other substances associated with water and rainwater to accumulate.

Also, if for some reason a gap forms between the receiving part of the eave-side roof shingle and the lower folded part of the ridge-side roof shingle, and rainwater etc. gets inside the abutting part,
As illustrated by the arrow in Fig. 2, rainwater etc. curves downward along the engagement protrusion of the eave side engagement part and is folded back towards the eaves side, and then flows through the ridge side sloped part of the ridge side engagement part and the receiving part. It flows down the rising part from the eave side edge of the receiving part and is discharged to the face plate part of the roof board on the eave side. For this reason, the folded lower part of the eave side engaging part, the eave side inclined part, the engaging protrusion,
The above-mentioned method is implemented without causing water such as rainwater or accompanying dust to accumulate in the space surrounded by the receiving part of the ridge-side engaging part, the ridge-side inclined part, and a part of the engaging holding part. Water, dust, etc. can be discharged outside the space, and in particular, not only is the roof sloped, but also there is a sloped part and a rising part on the ridge side, so rainwater etc. quickly flows to the eaves side, and the rainwater etc. can be smoothly discharged outside the receiving part without being retained.

〔Example〕

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

FIG. 1 is a cross-sectional perspective view showing a horizontal roofing board used in this embodiment, and FIG. 2 is an enlarged side sectional view showing a connection structure in which the same roofing boards are connected in the direction of the eaves.

In Fig. 1 and Fig. 2, the horizontal roofing board 31
Similar to the conventional structure described above, a long metal plate of a predetermined width is used, for example, which is coated with anti-rust baking paint, and this metal plate is formed into a face plate part at the center in the width direction using a roll forming machine or the like. 32, an eave-side engaging portion 33 is continuously formed on the eave side, and a ridge-side engaging portion 34 is continuously formed on the ridge side.

The eaves side engaging portion 33 is connected to the face plate portion 3.
The crown part 35 provided on the eave side part of No. 2 is bent slightly diagonally outward and downward to a predetermined length, and the hanging part 36 is bent downward from the eave side edge of the crown part 35, and a rounded part is formed on the lower edge. A folded lower part 38 is formed by bending the folded lower part 38 toward the ridge at a substantially right angle through the folded lower part 37, and an eave side inclined part 39 is bent diagonally upward from the ridge side edge of the folded lower part 38, and A horizontal U-shaped engagement protrusion 40 extending from the edge toward the ridge and folded back toward the eaves via a curved portion is formed by bending.

The ridge-side engaging portion 34 forms a rising portion 42 that is bent upward at right angles from the ridge-side edge of the face plate portion 32, and extends from the ridge-side edge of the face plate portion 32 at a right angle to the ridge side via a rounded portion 43 on the upper edge thereof. The receiving part 44 is bent at a slightly smaller acute angle to form a receiving part 44 longer than the folded lower part 38, and the eave side inclined part is bent obliquely upward from the ridge side edge of the receiving part 44. 39
A ridge-side inclined portion 45 having a shorter dimension is formed, extends from the ridge-side edge of the ridge-side inclined portion 45 toward the ridge side, is bent diagonally upward via a curved portion, and further receives the engagement protrusion 40 in surface contact. An engaging and holding part 46 is formed, and a dividing protrusion 47 that separates the internal space is connected to the distal edge of the engaging holding part 46 in a shape of a letter in the cross section.

Although not shown in the drawings, in order to connect the roof panels 31 toward the eaves side and assemble them into a connected structure, first connect the roof panels 31 on the eave side on the rafters, as in the conventional example. , and attach it with a hanger or the like, with a wood wool board or the like as a back-up material placed in the inner space as appropriate.

Then, the eaves side engaging portion 33 of the roof shingle 31 on the ridge side is engaged from the eave side with the ridge side engaging portion 34 of the roof shingle 31 on the eave side. That is, the engagement protrusion 40 of the eaves-side engaging part 33 provided on the ridge-side roof board 31 is brought into surface contact with the engagement holding part 46 of the ridge-side engagement part 34 provided on the eave-side roof board 31. The outer surfaces of the rising portion 42 of the ridge-side engaging portion 34 and the hanging portion 36 of the eave-side engaging portion 34 are arranged on the same plane, and the ridge-side engaging portion 3
On the eave side edge of the receiving portion 44 of No. 4, the eave side engaging portion 33
The eaves side edges of the folded lower part 38 are brought into line contact and abutted against each other. The folded lower part 38 of the eaves-side engaging part 33, the eaves-side inclined part 45, and the engaging protrusion 40 are placed on the ridge side of this abutting part 48, and the receiving part 4 of the ridge-side engaging part 34.
4. A space 49 is formed surrounded by the ridge-side inclined portion 45 and the portion 46a of the engagement holding portion 46 that projects toward the lower eaves of the engagement protrusion 41.

As mentioned above, the roof panels 31 adjacent to each other in the direction of the eave ridge,
31 are connected and the roof sheets are sequentially raised from the eaves side to the ridge side to form a roof.

In this embodiment, the ridge side roof plate 31 is in surface contact with the engaging holding portion 46 of the eave side roof plate 31.
Errors in molding accuracy between the receiving part 44 and the folded lower part 38 when the engaging protrusion 40 is closely received can be absorbed by the linear contact of the eave side edges between these opposing parts. become.

That is, in the case of the configuration of this embodiment, in each of the eave-side and ridge-side horizontal roof panels 31 that are engaged and connected to each other, a series of rising portions 42 and hanging portions 36 are formed.
The abutment part 48 is not present at the corner of the inner corner rising up in contact with the face plate part 32 as in the case of the conventional example, but at the middle part of the entire pressure receiving surface rising from the face plate part 32. located in the department.

Further, since the abutting portion 48 is in close contact with each other by line contact, rainwater or the like that attempts to cross the rising portion 42 and enter the space 49 from the abutting portion 48 is stopped by the abutting portion 48 .

Further, a contact portion 48 between the receiving portion 44 of the roof sheet 31 on the eave side and the folded lower part 38 of the roof sheet 31 on the ridge side
Even if a gap is created for some reason and rainwater enters the space 49, the rainwater will be returned downward along the engagement protrusion 40 of the eave side engagement part 33 as shown by the arrow in FIG. It passes through the ridge side inclined part 45 and the receiving part 44 of the ridge side engaging part 34, flows down the rising part 42 from the eave side edge, and flows down the rising part 42 of the eave side roof plate 31 to the face plate part 3 of the eave side roof board 31.
2 is discharged. Therefore, water such as rainwater and the accompanying dust can be discharged to the outside of the space 49 without being retained in the space 49.
In particular, not only does the roof have a slope, but also the sloped part 45 on the ridge side and the rising part 42 allow rainwater to quickly flow to the eaves side, and prevent rainwater from accumulating in the receiving part 44. It can be smoothly discharged to the outside, and dust, sand, mud, etc. are difficult to accumulate on the receiving part 44.

〔Effect of the invention〕

As explained above, the connection structure for horizontal roof panels according to the present invention has a ridge-side engaging portion and an eave-side engaging portion on the ridge side and eave side of the face plate portion formed at the widthwise center portion of a long metal plate. The ridge side engaging portion includes a rising portion bent above the ridge side edge of the face plate portion, a receiving portion bent from the upper edge of the rising portion toward the ridge side, and a ridge side portion of the receiving portion. Forming a ridge-side sloped part that is bent upward from the edge to the ridge side, and an engaging holding part that is bent and extended from the ridge-side edge of the ridge-side sloped part toward the ridge side and folded back diagonally upward to the eave side via the curved part. The eave side engaging portion includes a hanging portion bent below the eave side edge of the face plate portion, a folded lower portion folded back from the lower edge of the hanging portion toward the ridge side to a dimension shorter than the receiving portion, and a folded lower portion. an eave side slope part that is bent upward from the ridge side edge of the ridge side to a dimension longer than the ridge side slope part; A horizontal roof plate is provided with an engaging protrusion folded back to form an engaging protrusion, and a side roof plate is provided on the eave side of the engagement holding part of the ridge side engagement part provided on the roof plate on the eave side, The engagement protrusions of the eave side engagement part are brought into surface contact and held together, and the outer surfaces of the rising part of the ridge side engagement part and the hanging part of the eave side engagement part are arranged on the same plane, and the ridge side engagement part The eave side edge of the folded lower part of the eave side engaging part is in line contact with the eave side edge of the receiving part of the joint part, and the folded eave side engaging part is placed on the ridge side of this contact part. Surrounded by the lower part, the eave-side inclined part and the engagement protrusion, and the part protruding toward the eave below the engagement protrusion of the ridge-side engagement part, the ridge-side inclined part and the engagement holding part. Since the space is formed, the following effects can be obtained.

That is, in the horizontal roof board connection structure according to the present invention, on the eave side edge of the receiving part bent toward the ridge side from the upper edge of the rising part of the ridge side engaging part provided on the eave side roof board, Since the eave side edge of the folded lower part provided on the eave side engaging part provided on the ridge side roof plate was brought into line contact and abutted, this contact part was placed above the face plate part of the eave side roof plate. Due to this position, water such as rainwater and dust accompanying the rainwater are less likely to accumulate on the outside of the contact portion.

Also, if for some reason a gap forms between the receiving part of the eave-side roof shingle and the lower folded part of the ridge-side roof shingle, and rainwater etc. gets inside the abutting part,
As illustrated by the arrow in Fig. 2, rainwater etc. curves downward along the engagement protrusion of the eave side engagement part and is folded back towards the eaves side, and then flows through the ridge side sloped part of the ridge side engagement part and the receiving part. It flows down the rising part from the eave side edge of the receiving part and is discharged to the face plate part of the roof board on the eave side. For this reason, the folded lower part of the eave side engaging part, the eave side inclined part, the engaging protrusion,
The above-mentioned method is implemented without causing water such as rainwater or accompanying dust to accumulate in the space surrounded by the receiving part of the ridge-side engaging part, the ridge-side inclined part, and a part of the engaging holding part. Water, dust, etc. can be discharged outside the space, and in particular, not only is the roof sloped, but also there is a sloped part and a rising part on the ridge side, so rainwater etc. quickly flows to the eaves side, and the rainwater etc. can be smoothly discharged out of the receiving part without being retained, and therefore, it is possible to prevent dust from accumulating on the receiving part and rusting of the roof board.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional perspective view showing an example of a horizontal roof board used in the present invention, and FIG. 2 is an enlarged cross-sectional view showing a connection structure for horizontal roof boards according to an embodiment of the present invention. Fig. 3 is a cross-sectional perspective view showing an example of a conventional horizontal roof plate, Fig. 4 is an enlarged cross-sectional view of a connected structure using the above horizontal roof, and Figs. 5 a and b show the same effect as above. The explanatory drawing, FIG. 6, is a cross-sectional view showing another example of a conventional horizontal roof board connection structure. 31...Horizontal roof board, 32...Front plate part, 33
...Eaves side engaging part, 34...Ridge side engaging part, 36...
Drooping part, 38...Folding lower part, 39...Eave side slope part, 40...Engagement protrusion part, 42...Rising part of ridge side engagement part, 44...Receiving part, 45...ridge side slope part , 46... Engagement holding part, 48... Contact part, 49
...Space department.

Claims (1)

[Scope of Claims] 1. A ridge-side engaging portion and an eave-side engaging portion are provided on the ridge side and eave side of the face plate portion formed at the widthwise central portion of the long metal plate, respectively, and the ridge-side engaging portion is provided with a ridge-side engaging portion and an eave-side engaging portion, respectively. , a rising portion bent upward from the ridge side edge of the face plate portion, a receiving portion bent from the upper edge of the rising portion toward the ridge side, and a ridge side slope bent upward from the ridge side edge of the receiving portion. and an engaging holding part which is bent and extended from the ridge side edge of the ridge side inclined part to the ridge side and folded back diagonally upward to the eaves side via the curved part, and the eave side engaging part has a face plate. A hanging part bent downward from the eave side edge of the hanging part, a folded lower part folded back from the lower edge of the hanging part to the ridge side to a dimension shorter than the receiving part, and a folded lower part folded back from the lower edge of the folded part towards the ridge side to the upper part of the ridge side. A side surface that has an eave side slope part bent to have a longer dimension than the slope part, and an engaging protrusion part that is bent from the ridge side edge of the eave side slope part to the ridge side and folded back to the eave side via the curved part. A roof plate is provided, and the engagement protrusion of the eave side engagement part provided on the ridge side roof plate is attached to the eave side of the engagement holding part of the ridge side engagement part provided on the roof plate on the eave side. The outer surfaces of the rising part of the ridge side engaging part and the hanging part of the eaves side engaging part are placed on the same plane, and the outer surfaces of the rising part of the ridge side engaging part and the hanging part of the eave side engaging part are placed on the eave side edge of the receiving part of the ridge side engaging part. The eave side edge of the folded lower part of the eaves side engaging part is brought into line contact and abutted, and the folded lower part of the eave side engaging part, the eave side slope part and the engagement protrusion are placed on the ridge side of this abutting part. , a horizontal roofing characterized by forming a space surrounded by the receiving part of the ridge-side engaging part, the ridge-side inclined part, and the part protruding toward the eaves below the engagement protrusion of the engaging-holding part. Roof plate connection structure.