JPH0368184B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to horizontal roofing sheets made of metal steel sheets.
More specifically, an eave-side engaging portion and a ridge-side engaging portion having a predetermined cross-sectional shape for mutual engagement are formed in advance on both ends of a long metal steel plate of a predetermined width and coated with anti-rust baking paint. The present invention relates to improvements in the shapes of the mutually engaging portions between the eaves side and ridge side, and the supporting portions of horizontal roofing sheets that are shaped respectively.

[Conventional technology]

Conventionally, many types and configurations of horizontal roof panels made of long metal steel plates of this type have been proposed, and among them,
The shape of the combined engagement part intended to prevent rainwater from entering from the eave side engagement part and the ridge side engagement part, etc. at the engagement connection part between the next-level horizontal roof panels and the support part Research and development of composition is active.

Here, Fig. 10 and Fig. 10 show conventional examples of the connections and support shapes at the eave side and ridge side engagement parts, which are generally adopted for such horizontal roof plates made of long metal steel plates. FIG. 11 shows the effects of wind and rain pressure on the connecting and engaging portions and the support portion, and the effects of loads due to snow accumulation, etc., are shown in FIG. 12.

FIG. 10 is a cross-sectional perspective view showing a conventional horizontal roof plate, FIG. 11 is a vertical cross-sectional view of the same roof structure in a state that it is thatched up, and FIG. 12 is an explanatory view of the same operation.

In these conventional examples, the horizontal roofing board 1 is
For example, a long metal steel plate of a predetermined width and a predetermined unit length is coated with a baking coating for rust prevention, and this metal steel plate is processed using a roll forming machine or the like, leaving the face plate part 2 in the center along the longitudinal direction. The eaves-side engaging portion 3 is formed on one side, and the ridge-side engaging portion 4 is continuously formed on the other side.

Therefore, the eave side engaging portion 3 has the face plate portion 2.
From one side, the crown part 5 is bent slightly diagonally outward and downward to a predetermined length, and the edge part 6 is made to fall downward from the tip, and the lower edge part 7 is folded inward. It is bent to form an engaging piece 8, and its end edge is formed into a bent portion 9.

Further, the ridge-side engaging portion 4 has a holding portion 10 bent inward so as to be able to hold the edge bending portion 9 from the other side of the face plate portion 2;
The protruding end is bent outward again to form the folded part 11, and then the protruding part 12 is made to rise upward, and then the protruding part 12 is gently inclined downward to extend the attachment part 13 flatly. 14 is slightly raised.

In this conventional example, the horizontal roofing board 1 on the front side (eaves side) is first placed on the rafter 15, which is the attachment part constituting the roof assembly on the building frame side, until it is completely inside the inner space. With a wooden wool board 16 or the like as a back-up material interposed therebetween, the mounting portion 13 is used to properly attach and fix the board, and then the front side horizontal roof board 1 is engaged with the ridge side. The eave side engaging part 3 of the horizontal roof board 1 which is the next stage side (ridge side) is engaged and connected to the section 4, and this roofing engagement assembly is carried out from the eave side to the ridge side, that is. The process is repeated sequentially from the bottom to the top to construct the desired horizontal roof structure.

That is, more specifically, the edge bending part 9 including the engagement piece part 8 in the holding part 10 is made so that the next stage eave side engagement part 3 is fitted into the front ridge side engagement part 4 .
are inserted into engagement, and the inner surface of the end edge portion 6 is brought into contact with the protrusion of the folded portion 11 to connect.
In this engaged and connected state, the engaging piece portion 8 and the edge bending portion 9
are held in the holding part 10, and the edge part 6
The lower end edge 7 is in line contact with the surface of the face plate part 2, and the protruding edge of the folded part 11 is in line contact with the inner surface of the end edge part 6, and the protruding ridge part 12 is located slightly inwardly and downwardly on the top of the head part 5, The terminal end portions 14 are located inside and below the face plate portion 2, respectively.

Therefore, in the case of this conventional example, the basic concept of the engagement connection part and the support part in the horizontal roof structure is that the lower edge 7 of the edge part 6 is By making a line contact with the surface of the face plate part 2, the same line contact part, that is, the engagement joint edge between the front ridge side engaging part 4 and the next eave side engaging part 3 of the horizontal roofing board 1 is made. In addition, based on the insertion and engagement of the edge bending part 9 including the engagement piece part 8 into the holding part 10, the space formed inside prevents rainwater from entering. This is due to the fact that the pressure is reduced, and the rise of the protrusion portion 12 and the terminal end portion 14 provides a so-called water return effect.

[Problem that the invention seeks to solve]

However, in the conventional example configured in this way, as described below, there are serious problems regarding the influence of wind and rain pressure on the engagement connection part and the influence of loads such as snow accumulation on the engagement connection part and the face plate. It contains.

That is, regarding the influence of wind and rain pressure on the former engagement connection part, the engagement joint edge part 17 of the front ridge side engagement part 4 and the next stage eave side engagement part 3 is Since it is located at the corner of the inner corner against which the lower edge 7 is abutted, in the event of strong wind and rain, for example, as shown by the arrow in FIG. , is sprayed strongly and concentrated near the engaging joint edge 17 exposed at the corner of this inner corner, and springs upward along the edge 6. Therefore, here, Wind and rain pressure 18 directly blows against this engaging joint edge 17
Then, the wind and rain pressure 19 that jumps upward and the composite pressure 20 that is the sum of both of these wind and rain pressures act.

In this case, on the one hand, the wind and rain pressure 18 may cause a risk of water intrusion from the engaging joint edge 17 into the interior of the structure due to capillary action, and on the other hand, the wind and rain pressure 19 and the combined pressure 20 may cause water to leak into the structure. produces an effect of lifting the edge 6 upward;
There was a problem in that the engaging joint edge 17 was forced open, leading to further water intrusion. In addition, strong wind and rain usually bring sand, mud, and other dust with them, so these impurities can enter the structure and cause rust and corrosion, and later these rusts can cause damage. In addition to corrosive components flowing outside and staining the roof surface, especially in cold regions, infiltrated rainwater is retained in these impurities and freezes and expands as the temperature drops, preventing the intended engagement from occurring. This has led to the inhibition of the aspect. Also, the engagement piece 8 into the holding part 10
These engaging piece portions 8
If there is an error in the length dimension between the folded part 11 and the folded part 11, for example, if the engaging piece part 8 side is longer, the inner surface of the end edge part 6 cannot be brought into contact with the protrusion of the folded part 11, and the reverse occurs. If the folded part 11 side is long,
Edge bending part 9 including engagement piece part 8 into holding part 10
There was also a problem in that it interfered with the butt engagement and holding of the parts.

In addition, regarding the influence of the latter load on the engagement connection part and the face plate, the load on the entire surface due to snow accumulation, etc.
A wood wool board 16 is interposed in the internal space of the face plate 2 in order to prevent the shape from collapsing when a partial load, ie, a load pressure 21, is applied due to stepping on the face plate 2 by a repair worker. However, with such means, the supporting strength against the load, in other words, the resistance force, is not sufficient, and the horizontal roofing board 1 itself, that is, the face plate 2 including the engagement connection part, is easily deformed.
In this case as well, the intended engagement mode is similarly hindered, and the intervention of the wood wool board 16 itself has the disadvantage of unnecessarily complicating the structure.

Therefore, it is an object of the present invention to reduce the influence of wind and rain pressure on the engagement joint edge between the front ridge side engagement section and the next eave side engagement section, and the influence of wind and rain pressure on the engagement connection section and the face plate. To provide a horizontal roofing plate which can eliminate the influence of applied loads and has a structure itself as simple as possible.

[Means for solving problems]

In order to achieve the above object, the horizontal roof plate according to the present invention connects the left and right adjacent parts of the horizontal roof plate 31 having the eave side engaging part 33, the face plate part 32, and the ridge side engaging part 34. In the horizontal roof board, the eave side engaging part 33 includes a crown part 35 arranged at the end of the face plate part, a hanging part 36, and a hanging part 36.
The lower end is bent toward the ridge side to form an engagement piece portion 38, and the ridge side engagement portion 34 includes a rising portion 42 and a holding portion bent from the upper end of the rising portion 42 toward the ridge side. 44, a parietal support part 46 that folds the holding part 44 outward again and stands up and abuts the vicinity of the inner surface of the parietal part 35, and an attachment part 47 that extends flatly by making the parietal support part 46 hang down. The mounting portion 47 is raised and bent to form a face plate support portion 48 against which the inner surface of the face plate portion abuts.

[Effect]

That is, in the present invention, the abutting portion 49 of the upper end edge 43 of the rising portion 42 of the ridge side engaging portion 34 and the lower end edge 37 of the hanging portion 36 of the eaves side engaging portion 33 is located at a position rising from the face plate portion. Since it is exposed to the outside, it is easy to avoid wind and rain concentrating on this butt part. Furthermore, since only the engaging piece portion 38 of the eaves side engaging portion is engaged and held by the holding portion 44 of the ridge side engaging portion 34, the engagement and holding by this surface contact is complete, and the face plate In combination with the arrangement of the abutting portion at a position rising from the portion 32, the intrusion of rainwater, sand, mud, and other dust can be effectively prevented. Moreover, since the vicinity of the inner surface of the crown portion 35 and the inner surface of the face plate portion 32 are supported in abutment against the crown support portion 46 and the face plate support portion 48, the supporting force against the applied load and, by extension, the strength of the entire structure are significantly increased. It can be improved.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of horizontal roofing panels according to the present invention will be described in detail below with reference to FIGS. 1 to 9.

Fig. 1 is a cross-sectional perspective view showing a horizontal roof according to a first embodiment of the present invention, Fig. 2 is a schematic cross-sectional view of the same roof structure when the roof is raised, and Fig. 3 is an enlarged view of the engaging connection part. FIG.

In the configuration of the first embodiment shown in FIGS. 1 to 3, the horizontal roofing board 31 has a predetermined width, which is coated with anti-rust baking coating, etc., as in the case of the conventional configuration described above. Using a long metal steel plate with a predetermined unit length, this metal steel plate is formed using a roll forming machine or the like, leaving a face plate part 32 in the center along the longitudinal direction, and forming an eaves side engaging part 33 on one side thereof. The ridge side engaging portions 34 are continuously formed on the other side.

The eave-side engaging portion 33 has a crown portion 35 bent slightly diagonally outward and downward to a predetermined length from one side of the face plate portion 32, and further hangs downward from its tip. While forming the hanging portion 36, the lower end edge 37 thereof is bent inward to form the engaging piece portion 3.
8, and the end of this engaging piece portion 38 is formed into an edge bending portion 39.

Further, the ridge side engaging portion 34 includes the face plate portion 32.
From the other side, the hanging portion 36 and the abutting portion 4
9, a series of rising portions 42 are made to stand up, and then the upper edge 43 is bent toward the ridge side, and then folded back inward to form the edge bent portion 39.
A holding part 44 that can hold the head is formed, and the tip thereof is bent outward again to form a folded part 45, and then a crown support part 46 that abuts near the inner surface of the crown part 35 is provided to protrude upward. At the same time, the attachment part 47 is extended flatly by being folded down, and the face plate support part 48, which abuts the inner surface of the face plate part 32, is raised upward.

And the horizontal roofing board 31 according to this first embodiment
Although not shown in the drawings, in order to assemble the roof by raising it up and engaging it with the roof structure, first install the front horizontal roof board 31 on the eaves side, on the attachment part such as the rafter, as in the case of the conventional example. as it is, that is, without the backup material used in the conventional example,
Use the attachment part 48 to attach and fix it as appropriate, and then install the horizontal roof board 31 on the front side.
The eave side engaging part 33 of the next horizontal roof board 31 on the ridge side is engaged and connected to the ridge side engaging part 34 at , and this engagement and connection is repeated sequentially from the eave side to the ridge side. , the desired horizontal roof structure was obtained.

That is, to describe the aspect of the engagement connection more specifically, the engagement piece is inserted into the holding part 44 so that the next eave side engagement part 33 is fitted into the front ridge side engagement part 34. The edge bending part 39 including the part 38 is inserted and engaged, and the crown part 35 is inserted into and engaged with the crown support part 46.
The inner surface of the face plate 32 is engaged with and connected to the face plate support portion 48 by directly abutting and supporting the inner surface of the face plate portion 32, or by being positioned opposite to the face plate support portion 48 so as to be able to abut and support the inner surface of the face plate portion 32, respectively. In this engaged and connected state, the upper end edge 43 of the rising portion 42 and the lower end edge 37 of the hanging portion 36 are abutted against each other, and the abutting portion 49 serving as a connecting edge exposed to the outside is connected to the face plate portion 32.
The edge bending part 39 is not located at the inner corner of the face plate part 32, that is, it is located at a part rising from the surface of the face plate part 32 via the rising part 42, and the edge bending part 39 is held in the holding part 44. , the parietal support part 46 and the face plate support part 48 are directly abutted against the inner surface of the parietal part 35 and the inner surface of the face plate part 32, respectively, or are positioned so as to face each other so that they can abut against each other. .

That is, in the case of the configuration of this embodiment, in each horizontal roof board 31 on the front eave side and the rear ridge side that are engaged and connected to each other, the engagement abutment between the series of rising parts 42 and the hanging parts 36 The mating portion 49 does not exist at the corner of the inner corner that rises up in contact with the face plate portion 32 as in the case of the conventional example, but is located rising from the face plate portion 32 of the pressure receiving surface of the engagement portion as a whole. That will happen. Therefore, wind and rain blown up along the face plate portion 32,
Since this engaging abutting portion 49 is not directly sprayed, its influence is sufficiently alleviated, and the intrusion of rainwater from the engaging abutting portion 49 is eliminated, and sand, mud, etc. accompanying wind and rain, It can effectively prevent other dust from entering.

Furthermore, even if some rainwater enters through this engagement abutment portion 49, the intrusion will be at the level of seepage with almost no pressure, so that effective engagement at this engagement abutment portion 49 will not be effective. Coupled with the butt-and-butt hold, there is a very low possibility that the air that already exists in the holding part 44 will reach the folded part 45 side by removing it. There is no need to confront the inner world,
Thereby, disadvantages caused by the difference in length between the engagement piece portion 8 and the folded portion 11 as in the conventional example can be easily eliminated.

Further, a crown support portion 46 and a face plate support portion 48 are provided near the inner surface of the crown portion 35 and the inner surface of the face plate portion 32.
are arranged so that they directly abut or can abut, respectively, so that the load applied to the engagement connection part and the face plate part 32 is transferred between the crown support part 46 and the face plate support part 48. The structure can be sufficiently supported by the roof panels to maintain the desired strength, and there is no risk of deformation of these parts. can be easily simplified.

Next, FIGS. 4 to 9 are schematic cross-sectional views showing the roof structures of second to seventh embodiments, which are modifications of the first embodiment, respectively.

In the second embodiment shown in FIG.
However, each part 38 has a step-like step in the middle part.
a, 38b, and 38c, and correspondingly, the holding portion 44 is also formed with respective portions 44a, 44b having a step-like step at the front stage, so that each portion at the front stage is 38a and 38b are brought into contact with each other, a portion 38c having the original shape of a holding portion is formed at the rear stage, and the portion 38c is engaged and held. In this case,
By bending each part according to the stepped shape, the strength of the entire engagement connection part can be further increased, and
The integrated action of the contact pressure at the front stage and the engagement and holding at the rear stage makes it possible to prevent infiltration of rainwater better than in the first embodiment.

The third embodiment shown in FIG. 5 saves the material in the width direction by giving a gentle slope to the corner support part falling from the crown support part 46, and also saves the material in the width direction. The mounting position is unified by regulating the width of the base plate, and the distance from the face plate support part 48 is increased to stabilize the support point for the face plate part 32.

In the fourth embodiment shown in FIG. 6, a lower surface portion 40 bent inwardly is newly formed in the hanging portion 36, and a step is provided to the rising portion 42, thereby creating a gap between the hanging portion 36 and the face plate portion 32. forming a recess 41a in the
The upper end of the rising part 42 is abutted against the terminal end of the lower surface part 40 to form an abutting part 49, and a further increase in blowing pressure is avoided due to the turbulent flow effect of the wind and rain pressure being blown onto the recessed part 41a. It is something. Moreover, by forming the second face plate support part 48a on the outside of the face plate support part 48 via the concave surface part 50, the number of support points for the face plate part 32 is increased as described above, thereby further stabilizing the face plate part 32. It was something that was pushed forward.

In the fifth embodiment shown in FIG.
By slanting upward toward the diagonal eaves side, a recess 41b with a wedge-shaped cross section is formed between the face plate 32 and the direction in which the wind and rain that is blown onto it bounce back forms an acute angle with the direction in which the engaging piece 38 is inserted and engaged. As a result, the infiltration of rainwater from the engaging abutting portion 49 can be more effectively prevented.

In the sixth embodiment shown in FIG. 8 and the seventh embodiment shown in FIG. We propose different aspects of each.

It goes without saying that the configurations of these second to seventh embodiments also provide the same effects as the configuration of the first embodiment.

〔Effect of the invention〕

This invention is configured as described above, so that the upper end edge 43 of the rising portion 42 of the ridge side engaging portion 34
Since the abutting portion 49 of the lower end edge 37 of the hanging portion 36 of the eave-side engaging portion 33 is exposed to the outside at a position rising from the face plate, wind and rain may concentrate on this abutting portion. You can easily avoid being hit by it. Furthermore, since only the engaging piece portion 38 of the eaves side engaging portion is engaged and held by the holding portion 44 of the ridge side engaging portion 34, the engagement and holding by this surface contact is complete, and the face plate In combination with the arrangement of the abutting portion at a position rising from the portion 32, the intrusion of rainwater, sand, mud, and other dust can be effectively prevented. Moreover, since the vicinity of the inner surface of the crown portion 35 and the inner surface of the face plate portion 32 are supported in abutment against the crown support portion 46 and the face plate support portion 48, the supporting force against the applied load is increased.
As a result, the strength of the entire structure can be significantly improved.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional perspective view showing a horizontal roof according to a first embodiment of the present invention, Fig. 2 is a cross-sectional schematic view showing the same roof structure in a raised state, and Fig. 3 is an enlarged view of the main part of the engagement connection part. The longitudinal sectional views, Figures 4 to 9, are
FIG. 10 is a schematic cross-sectional view showing the roof structure of the second to seventh embodiments, which are modifications of the first embodiment, and FIG. 10 is a cross-sectional perspective view showing a horizontal roof board according to the conventional example , FIG. 11 is a longitudinal cross-sectional view showing the state in which the same roof structure is covered, and FIG. 12 is an explanatory view of the same effect. 31...Horizontal roof board, 32...Front plate part, 33
...Eaves side engaging part, 34...Ridge side engaging part, 35...
Top of head, 36... hanging part, 37... lower edge of hanging part, 38... engaging piece part, 38a, 38b, 38c
...Each part of the stepped cross section of the engaging piece, 39... Turned part, 41a... Recess, 41b... Recess with wedge-shaped cross section, 42... Rising part, 43... Upper edge of rising part, 44... Holding Holding part, 45... Folding part, 46
...Parietal support section, 47...Attachment section, 48, 48
a... Face plate support part, 49... Engagement abutment part, 5
0... Concave portion.

Claims (1)

[Claims] 1. Eave side engaging portion 33, face plate portion 32, and ridge side engaging portion 3
4, the eave-side engaging portion 33 has a crown portion 35 disposed at the end of the surface plate portion, and a hanging portion 36. and hanging part 36
The lower end is bent toward the ridge side to form an engagement piece portion 38, and the ridge side engagement portion 34 includes a rising portion 42 and a holding portion bent from the upper end of the rising portion 42 toward the ridge side. 44, a parietal support part 46 that folds the holding part 44 outward again and stands up and abuts the vicinity of the inner surface of the parietal part 35, and an attachment part 47 that extends flatly by making the parietal support part 46 hang down. Horizontal roof board 2 characterized in that the mounting portions 47 are raised and bent to form face plate support portions 48 against which the inner surface of the face plate portion abuts. The horizontal roof board according to claim 1, wherein the holding portion 44 is bent to have a stepped cross-sectional shape. 3 The face plate portion 32 is attached to the rising portion 42 from the end of the face plate.
The horizontal roofing board according to claim 1, wherein a recessed portion 41a is formed between the horizontal roofing board and the recessed portion 41a. 4 The rising portion 42 from the end of the face plate is inclined diagonally inward, and a recess 41 with a wedge-shaped cross section is formed between it and the face plate portion 32.
The horizontal roofing board according to claim 1, which has a shape of b. 5. The horizontal roof board according to claim 1, which is provided with a plurality of face plate support parts 48.