JPH0742776B2 - Metal exterior plate - Google Patents

Description

TECHNICAL FIELD The present invention relates to a metal face plate for construction, and more specifically,
A metal that has been improved to give soundproofing and sound insulation properties to a horizontal roofing board and a vertical roofing board for a metal roof structure in a building, or a building metal face plate used for a metal exterior structure exterior plate and a wall panel, etc. It is related to the exterior plate made of.

[Conventional technology]

Conventionally, as a method of improving the soundproofing and soundproofing properties of a metal exterior plate having a face plate portion that mainly forms the surface mounting portion of this kind of a thatched roof plate, a thatched exterior plate, etc. A means has been widely adopted in which a sound-absorbing material and a sound-insulating material are laid on the entire surface of the base side, and the sound-absorbing material and sound-insulating material serving as the underlays perform the functions of sound absorption and sound insulation.

[Problems to be Solved by the Invention]

However, an indirect means of merely bringing the sound absorbing material and the sound insulating material into contact with the back surface of such an exterior plate causes linear vibration by applying an external force to the face plate portion of the metal face plate member exposed on the surface portion. The metal face plate member itself serves as a noise source and is based on the idea of absorbing and insulating this noise, and does not prevent the generation of noise itself.

On the other hand, means for adhering a sound absorbing backing member made of a material having a relatively low surface density such as foamed polyurethane foam to the entire back surface including the face plate portion, or a backup material being pressed and adhered so as to follow In addition, it is also considered to form the metal face plate member itself by a so-called damping steel plate such as a resin laminated steel plate, but as a product that can be provided at low cost because it becomes complicated in accuracy or manufacturing,
It was unsuitable.

Therefore, the present invention has been made in view of the above-mentioned conventional problems.
It is effective and practical to improve the soundproofing mainly due to the vibration damping effect to the part of the metal exterior plate that is most likely to vibrate and generate noise, that is, the face plate part that is the main part of the mounting part. The purpose of the present invention is to provide a metal exterior plate that has been subjected to effective noise prevention measures.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the metal exterior plate according to the present invention forms the main body of the cover part and has each face plate part divided into a plurality of intermediate bent edges at the middle in the width direction. Along with each of the side edges in the width direction, in a metal exterior plate having an engaging portion for attachment and fastening to the base material side, an areal density different from the areal density of the material of the exterior plate. A thin plate-shaped or sheet-shaped backing member made of the material of is provided, straddling the intermediate bent edge, toward the longitudinal direction of each face plate portion on the back surface of each face plate portion, and more than the total width of each face plate portion. It is characterized in that an intermediate backing portion having a short width and an arbitrary length is attached.

[Action]

That is, in the present invention, a thin plate-like or sheet-like backing member made of a material having an areal density different from the areal density of the material of the exterior plate is provided, and each of the above-mentioned Since an intermediate backing member of arbitrary length with a width shorter than the total width of each face plate portion was attached to the back surface of the face plate portion in the longitudinal direction of each face plate portion, this face plate portion alone would have its own balance. The mass at each surface portion that has been made uneven becomes imbalanced by the attachment of the intermediate backing member to the back surface of each face plate portion that straddles the intermediate bent edge. Therefore, as a result of the non-uniform natural frequency in each part of the surface, only the face plate part of the exterior plate without the backing member has the mass of each part of the surface in the equilibrium state, so that the entire surface is integrated and continuous. That the natural vibrations and initial vibrations of the face plate itself that were generated due to the difference in the natural frequency and imbalance between the surface parts caused by the attachment of the backing member directly cancel each other out. Therefore, it is possible to positively and effectively suppress the generation of noise, which is the generation of the overall vibration of the face plate portion. That is, as a result of the vibration damping effect of the above configuration, the soundproofing property can be significantly improved.

Further, due to the vibration of the metal face plate portion, when the backing member attached across the intermediate bent edge is polyester, etc., this polyester is deformed and the vibration of the face plate portion is converted into heat energy. Therefore, it is possible to suppress the noise generation.

〔Example〕

Hereinafter, with respect to the embodiment of the metal exterior plate according to the present invention,
This will be described in detail with reference to FIGS. 1 to 4.

FIG. 1 is a partial cross-sectional perspective view showing a schematic configuration of a horizontal thatched roof plate in a first embodiment when the metal exterior plate of the present invention is applied to a horizontal thatched roof structure.

In FIG. 1, reference numeral (1) is a horizontal thatched roof plate as an exterior plate, and this horizontal thatched roof plate (1) is formed by, for example, continuously forming a long thin metal steel plate by roll forming, Each face plate portion having a required appropriate surface area in the center in the width direction (upper and lower width directions in the case of an exterior plate) and divided into a plurality of intermediate bent edges (3) in the middle in the width direction. Each of these face plate portions (2a), (2a), (2b) is left.
The eaves side forming part (4) is formed on one connection side edge side in the width direction and the ridge side forming part (5) is formed on the other connection side edge side in a predetermined cross-sectional shape, which are common through (2b). At the same time, it is cut into a predetermined reference unit length in the longitudinal direction, and both cut ends are connection end edges (6) and (7).

Then, in the eaves-side and ridge-side formed portions (4) and (5) corresponding to the width direction, one of the formed portions adjacent to the eaves side and the ridge side is provided with the other of the formed portions. After the molded parts are engaged with each other, they are retained and fixed to the roof substrate side by a predetermined suspension member or the like, while at the corresponding connecting edge parts (6) and (7) in the longitudinal direction, The roof surface can be raised as expected by sequentially connecting and connecting it through a discard plate (not shown) or the like.

This lateral thatched roof panel (1) is limited in regard to the eaves side molding portion (4) and the ridge side molding portion (5) formed on both side edge portions thereof, because this is a relatively narrow aspect. There is no room for giving sufficient strength within the above range to generate free vibration, but each bending edge (8) corresponding to the forming start end of each of these forming parts (4), (5), (9) and the intermediate bent edge (3), and at the portions including the intermediate bent edge (3), the widths la ₁ and lb ₁ are relatively easy to cause free vibration. Face plate portions (2a) and (2b) are respectively formed.

And for each of these face plate parts (2a), (2b),
Area density, plate thickness, depending on the material of the thin metal sheet used,
Based on the toughness, the effective surface area set for each part, and the total size of the effective total surface area, etc., according to the form of molding, etc., each of these face plate parts (2a), (2b) is individually The natural frequencies (Aa) and (Ab) are given, and a predetermined natural frequency (A) is given to the total of these.

On the other hand, (11) is each face plate part (2) of the thatched roof plate (1).
A backing member formed of a heterogeneous material having an areal density different from the areal density of the metallic materials of a) and (2b),
The backing member (11) has a corresponding thickness and, as will be described later, on the back surface of each face plate portion (2a), (2b) across the intermediate bent edge (3), or Face plate parts (2a), (2
b) Each face plate part (2a), (2b) combined natural frequency (A) or each face plate part (2a), ( It is necessary to use a material that can sufficiently change the natural frequencies (Aa) and (Ab) of 2b).

That is, the backing member (11) has a specific natural frequency different from the natural frequencies (Aa) and (Ab) of the face plate portions (2a) and (2b) and their total natural frequency (A). A rubber plate, a rubber sheet, a vinyl chloride plate, a vinyl chloride sheet or the like having a frequency (B) is used.

The shape and size of the backing member (11) are formed so as to be sufficiently thicker than the thickness of each face plate portion (2a), (2b) and narrower than the width of the face plate portion (2). Moreover, the length is set to the required length.

In addition, in the case of this embodiment, as well as in the case of other embodiments described later, a rubber sheet having a natural frequency (8) is used as the material to be used, and particularly the width of each of the face plate portions (2a) and (2b). la ₁ , l
A width lo (la ₁ + lb ₁ > l) that is shorter than the total width la ₁ + lb _{1 of} b _1.
The intermediate backing member (12o) of o) is prepared, and, if necessary, the width la ₂ (la ₁ > less than the width la ₁ and lb _{1 of the} face plate portions (2a) and (2b). Prepare backing members (12a) and (12b) for la ₂ ) and lb ₂ (lb ₁ > lb ₂ ).

Thus, in the configuration of the first embodiment, as shown in FIG. 1, the natural frequency (A
a), (Ab) on the back surface of each face plate portion (2a), (2b), a predetermined widthwise position across the intermediate bent edge (3), for example, even across the intermediate bent edge (3) At a position distributed to each of the forming parts (4) and (5) over the entire length in the longitudinal direction parallel to the direction of the forming parts (4) and (5), having a natural frequency (B) and a width lo (la ₁
The intermediate backing member (12o) with + lb ₁ > lo) is attached in series so as not to fall off easily, and both of them, and eventually the whole, are integrated.

In the first embodiment, the intermediate backing member (when viewed through the entire surface portion of the face plate portions (2a) and (2b) having the widths la ₁ and lb ₁ of the horizontal roofing board (1), respectively. 12
Before the attachment of o), the natural frequencies (Aa), (Ab), and eventually the natural frequencies (A), were changed to the natural frequency (A), but each face plate part (2a) straddling the intermediate bent edge (3). , (2b) has a natural frequency (B) on the back surface side, and the intermediate backing member (12o) having a width lo (la ₁ + lb ₁ > lo) is integrally attached, so that only the attached portion is attached. , Its natural frequency is a composite natural frequency (A), (B) of these two (A,
Change to B).

As a result, each thatched roofing board constructed in this way (1)
In the side-roof structure that was raised by the roof, for example, the contact pressure of raindrops and the external pressure of wind scraping are continuously applied to the face plate parts (2a) and (2b) of the roof surface, and to the entire roof surface. When added, the part where the intermediate backing member (12o) is not attached and the part where this is attached,
Since the natural frequencies (A) and (A, B) are different from each other, the mass of each surface portion is unbalanced.

Therefore, the natural frequency of the frequency (A), which has conventionally been generated in a series of the individual surface plates (2a) and (2b), becomes the natural frequency (A) of this surface portion. , (A, B)
Will be canceled out directly by the difference of each of the face plate portions (2a), (2b), and by extension, the noise generation as a total vibration in which both these portions are integrated is positive and
It is effectively suppressed. That is, the sound damping property can be significantly improved by the vibration damping effect.

FIG. 2 shows a second embodiment of the present invention. The back surfaces of the face plate portions (2a), (2b) distributed over the intermediate bent edge (3) in the configuration of the first embodiment described above. Along with the attachment of the intermediate backing member (12o) to the back surface of the face plate portion (2a) having one natural frequency (Aa), a predetermined position in the width direction by the width la ₁ , for example, Each of the molding parts (4) is formed in the widthwise intermediate part of the intermediate backing member (12o) excluding the pasted part.
A side backing member (12a) having a natural frequency (B) and a width la ₂ (la ₁ > la ₂ ) is attached over the entire length in the lengthwise direction parallel to the direction (5). It was made.

Furthermore, on the back surface of the face plate portion (2b) having the other natural frequency (Ab), a predetermined position in the width direction according to the width la ₁ of the face plate portion (2b) is also excluded. The width lb ₂ (lb ₁ > lb) has a natural frequency (B) at the middle portion in the width direction over the entire length in the length direction parallel to the direction of the forming parts (4) and (5). _The side backing member (12b) described in ₂ ) was affixed in series so as not to fall off easily, and both of these side backing members (12a) and (12b) were integrated. It is a thing.

That is, in the second embodiment configured in this way, as in the case of the first embodiment, the face plate portions (2a) having the widths la ₁ and lb ₁ respectively of the thatched roof plate (1). , (2b), the intermediate backing member (12o) and the respective backing members (12a), (12
Before the attachment of b), the natural frequencies (Aa), (Ab), and in turn the natural frequencies (A), were changed over to the face plate part (2a) across the intermediate bent edge (3). ), (2b) with a natural frequency (B) to a predetermined position on the back surface side lo (la ₁ + lb ₁ > l
o) Intermediate backing member (12o) and each face plate part (2
a), each side backing member having widths la ₂ (la ₁ > la ₂ ) and lb ₂ (lb ₁ > lb ₂ ) having natural frequencies (B) to predetermined positions on the back surface side of (2b) By virtue of the integrated sticking with (12a) and (12b), the natural frequency of only the sticking part is a natural frequency (A), (B) which is a composite natural frequency A, B) respectively.

And as a result, in the side-roof roof structure that is raised by each side-roof roof plate (1) configured in this way, for each face plate part (2a), (2b), and by extension, the entire roof surface, For example, when the impact external pressure of raindrops or the external pressure of wind abrasion is applied without interruption, the areas where the backing members (12o) and (12a), (12b) are not attached, Since the natural frequencies (A) and (A, B) of the surface part are different from each other, the mass of each part of this surface is imbalanced, and each face plate part is conventionally formed. The natural frequencies of frequencies (A) that were generated in a series of individual surfaces of (2a) and (2b) are the natural frequencies (A) and (A) between these surface parts. , B) will be directly canceled by the difference, and here again, each face plate part (2a), (2b), and by extension, Vibration whole these both parts are together, in other words, active and generation of noise is of being effectively suppressed. That is, the sound damping property can be significantly improved by the vibration damping effect.

Further, the natural frequencies (Aa) and (Ab) of the face plate portions (2a) and (2b) and the backing members (12o) and (12a),
As a selection criterion for the natural frequency (B) of (12b), in addition to the above-mentioned difference in areal density, it is possible to select on the basis of the difference in specific gravity between the two. Actions and effects can be achieved.

Furthermore, the width lo (la ₁ of the intermediate backing member (12o) with respect to the total width la ₁ + lb ₁ of the widths la ₁ and lb ₁ of the face plate portions (2a) and (2b).
＋ lb ₁ ＞ lo), the width dimension ratio la ₁ ＋ lb ₁ : lo
1: 1/2, by extension, the relation of la ₁ + lb ₁ ≈ 2lo, that is, the width la ₁
The width lo may be set to 1/2 or approximately 1/2 to + lb ₁ .

In addition, the width la ₁ of each side plate (2a), (2b) to the width la ₁ , lb ₁ of each side backing member (12a), (12b) la ₂ (la ₁ > la ₂ ), l
For b ₂ (lb ₁ > lb ₂ ), the width dimension ratio la ₁ −1 / 2l
Each of o: la ₂ and lb ₁ −1/2 lo: lb ₂ is 1: 1/2, and l
_{a 1 -1 / 2lo ≒ 2la 2} , of lb ₁ -1 / 2lo ≒ 2lb ₂ relationship, that is, the width la ₁ -1 / 2LO, width la _2, lb ₂ relative lb ₁ -1 / 2LO 1 /
2, or about 1/2 may be set.

That is, as shown in the experiment of the present inventor, each face plate portion (2a),
The width la _1, the width lo of the intermediate backing member to the total width la ₁ + lb ₁ of _{lb 1 (12o) (la 1} + lb 1> lo) of (2b), the surfaces plate portion (2a), of (2b) The width of the side backing members (12a), (12b) for the widths la ₁ -1 / 2lo, lb ₁ -1 / 2lo, which is the width obtained by subtracting the proportional width of the intermediate backing member (12o) la ₂ (la ₁ ＞ la ₂ ) ， lb
₂ (lb ₁ > lb ₂ ) and about 1/2 each, these backing members (12o) and (12a), (12
When the backing member is attached to the entire back surface of the face plate against the noise level generated when b) is not attached, assuming that the reduction rate of the noise level is 100%, the value is about 75%. It was confirmed that In particular, the noise reduction in this case was more prominent in the high frequency range that was most annoying to humans living inside the building.

Even when the width ratios are set to about 1: 1/4, the noise level is reduced by about 60%, and the face plate portions (2a), (2b It is extremely effective in terms of noise suppression to partially attach the backing members (12o) and (12a), (12b) having different surface densities to the back surface of It was well documented that it was characteristic.

On the other hand, the attaching positions of the backing members (12o) and (12a), (12b) to the back surfaces of the face plate portions (2a), (2b) may be as described above, but Depending on the cross-sectional shape given to, the respective vibration centers may not necessarily be located in the widthwise centers of the face plate portions (2a) and (2b), so the vibration center should be selected as much as possible. Or, alternatively, it is desirable to select and attach the node-corresponding portion of the vibration wave propagating by the vibration generation in each face plate portion (2a), (2b).

Further, regarding the sticking length of each backing member (12o) and (12a), (12b) to the back surface of each face plate portion (2a), (2b), it can be seen in the configuration of the first embodiment. The face plate parts (2a), (2b) of the thatched roof plate (1)
You can stick it over the entire length of. And in this configuration,
It is advantageous that the existing general-purpose production line can be used as it is without making a major modification to the roll forming machine at the time of its production.

And in the case of this 1st Example structure, each face plate part (2a), with respect to the material of the metal plate used for the thatched roof plate (1),
Each backing member (12o) and (1) attached to the back surface of (2b)
The amount of materials used in 2a) and (12b) can be significantly reduced.

Next, in the case of the configuration of the first embodiment, a thatched roof plate (1)
Are sequentially connected to each other at the connecting edge portions (6) and (7) in the length direction through a discard plate (not shown) or the like.
As in the configuration of the third embodiment shown in FIG. 3, each backing member (12) at these connecting edge portions (6), (7).
o) and (12a), (12b) are partially omitted,
That is, the bonding length of each backing member (12o) and (12a), (12b) is not the total length of each face plate part (2a), (2b), but each connection edge part (6), (7). By setting it up to a position close to, it is possible to further facilitate the work of hoisting the lateral thatched roof plate (1).

Further, as the horizontal roofing board (1), a synthetic resin laminate layer (22) is attached to the surface of a steel plate material as in the configuration of the fourth embodiment shown in FIG. , That is, when using a resin laminated steel plate that has been subjected to measures to prevent noise, that is, a so-called damping steel plate (21),
This is effective because the individual vibrations of the face plate portions (2a) and (2b) and the overall vibration can be suppressed more effectively.

In addition, in each of the above-described embodiment configurations, the case where the metal roof plate for building is applied to the horizontal roofing plate for the thatched roof structure is described, but also for the exterior plate and the wall panel for the other exterior structure. Can be applied in exactly the same way, especially
When applied to a metal face plate member in which the area of each face plate portion is relatively large and the intermediate bent edge is not supported on the back surface side, the effect is more remarkable.

〔The invention's effect〕

As described in detail above, according to the present invention, a thin plate-like or sheet-like backing member made of a material having an areal density different from that of the material of the exterior plate is provided, and the intermediate bent edge is provided. Since a backing member of any length having a width shorter than the total width of each face plate portion is attached to the back surface of each face plate portion in the longitudinal direction of each face plate portion, the face plate portion is independent. Then, the mass at each of the balanced front surface portions becomes imbalanced due to the attachment of the intermediate backing member to the back surface of each face plate portion that straddles the intermediate bent edge. Therefore, as a result of the non-uniform natural frequency in each part of the surface, only the face plate part of the exterior plate without the backing member is in equilibrium with the mass of each part of the surface, so that the entire surface is integrated and continuous. That the natural vibrations and initial vibrations of the face plate itself that were generated due to the difference in the natural frequency and imbalance between the surface parts caused by the attachment of the backing member directly cancel each other out. Therefore, it is possible to positively and effectively suppress the generation of noise, which is the generation of the overall vibration of the face plate portion. That is, as a result of producing a vibration damping effect by the above configuration,
The soundproofing property can be remarkably improved.

Further, when the backing member attached across the intermediate bent edge is polyester due to the vibration of the metal face plate portion, the polyester is deformed and the vibration of the face plate portion is converted into heat energy. Therefore, it is possible to suppress the noise generation accordingly.

In addition, as described above, the structure in which the backing member is attached to the back surface of the face plate portion while straddling the intermediate bending edge, that is, the configuration in which the backing member is partially attached to a required portion is used. What is the case with a means such as interposing a base material such as a backup material or a cushioning material, or adding a material layer such as a urethane foam layer to the back surface of the thatched roof plate itself, with respect to the entire back surface of the It is completely different and can exhibit effective soundproofing or sound insulation.

Furthermore, by partially adhering the backing member to the required portion, the material consumption of the intervening member on the base side can be reduced, which contributes to the simplification of the structure and the ease of manufacturing. It has excellent features such as helping to reduce costs.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view showing a schematic structure of a lateral thatch roof plate according to a first embodiment when the metal exterior plate of the present invention is applied to a lateral thatch roof structure, and FIG. Partial cross-sectional perspective view showing a schematic configuration of a horizontal thatched roof plate,
FIG. 4 is a partial cross-sectional perspective view showing a schematic structure of a horizontal thatched roof plate according to the third embodiment, and FIG. 4 is a sectional view showing a schematic structure of a horizontal thatched roof plate according to the fourth embodiment. (1)… Horizontal roofing board (lateral roofing board) (2a), (2b) …… Individual face plate parts la ₁ , lb ₁ … Width before and after each face plate part (vertical width for exterior plate) la ₁ + lb ₁ … Total width of each face plate (3)… Intermediate bent edge between each face plate (4)… Eaves side forming part (8)… Eaves side forming part bending edge (5)… Building side forming Part (9) ... Bent edge of the molding part on the ridge side (6) ... Connecting edge at one end in the longitudinal direction (7) ... Connecting edge at the other end in the longitudinal direction (11) ... Backing member (12o) )… Intermediate backing member (12a), (12b)… Each side backing member lo (la ₁ ＋ lb ₁ > lo)… Width of intermediate backing member la ₂ (la ₁ > la ₂ ), lb ₂ (lb ₁ ＞ lb ₂ )… Width of each side backing member (21)… Damping steel plate (resin laminated steel plate) (22)… Synthetic resin laminated layer

Claims (7)

[Claims] 1. A main body of a cover part is formed, and each face plate portion is divided into a plurality of intermediate folding edges at the middle in the width direction, and each side edge portion in the width direction has a base material. In a metal exterior plate having an engaging portion for attachment / detachment to a side, a thin plate-like or sheet-like backing member made of a material having an areal density different from that of the material of the exterior plate. And affixing an intermediate backing portion of an arbitrary length with a width shorter than the total width of each face plate portion on the back surface of each face plate portion in the longitudinal direction of each face plate portion across the intermediate bent edge. A metal exterior plate characterized by the above. 2. Along with the attachment of the intermediate backing member to the back surface of each face plate portion straddling the intermediate bending edge, the engaging edge side bending edge forming each of the engaging portions and the bending edge. Assuming that the widths of the face plate portions with respect to the intermediate bent edge are la ₁ and lb ₁ , respectively, the width la is set at a predetermined position in the width direction on the back surface of each face plate portion in the longitudinal direction of each face plate portion. Width la ₂ shorter than ₁ and lb ₁ (la ₁ > la ₂ )
And lb ₂ (lb ₁ > lb ₂ ), a side backing member of arbitrary length is separately attached to each of the face plate portions substantially at the center in the longitudinal direction, respectively. Exterior plate. 3. The metal exterior plate according to claim 1, wherein the exterior plate and each backing member are made of materials having different specific gravities. 4. The metal exterior plate according to claim 1 or 2, wherein a resin laminated steel plate is used as a material for the exterior plate. 5. The width of the intermediate backing member is approximately halved with respect to the total width of each face plate portion of the exterior plate, and the intermediate backing member is distributed to the back surface of each face plate portion substantially evenly. The metal exterior plate according to any one of claims 1, 3 and 4, which is attached. 6. An intermediate backing member is attached to the back surface of each face plate portion straddling the intermediate bent edge of the exterior plate over the entire length in the longitudinal direction of each face plate portion. A metal exterior plate according to any one of 3 to 5. 7. An intermediate backing member is adhered to a back surface of each face plate portion straddling an intermediate bent edge of the exterior plate to a position close to each connection edge portion in the longitudinal direction of each face plate portion. The metal exterior plate according to any one of claims 1, 3 to 5.