JPH0742775B2 - Metal exterior plate - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a metal face plate for construction, and more specifically, a side-roofing roof plate and a vertical-roofing roof plate for a metal roof structure in a building, or a metal exterior. The present invention relates to a metal exterior plate which is improved so as to provide soundproofing and sound insulation to a metal exterior plate for construction used for a structural exterior plate and a wall panel.

[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, such an indirect means of merely bringing the sound absorbing material and the sound insulating material into contact with the back surface of the exterior plate directly vibrates when an external force is applied 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 has been considered to form the metal face plate member itself by a so-called vibration-damping steel plate such as a resin laminated steel plate, but it is not suitable as a product that can be provided at low cost because it becomes complicated in terms of accuracy or manufacturing.

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 described above is provided, and the width of each face plate portion between each engaging-side bent edge of each engaging portion of the exterior plate and the intermediate bent edge is Assuming la ₁ and lb ₁ respectively, widths la ₂ (la ₁ > la ₂ ) and lb ₂ (la ₁ > la ₂ ) shorter than the widths la ₁ and lb ₁ toward the longitudinal direction of each face plate portion on the back surface of each face plate portion. lb _1> lb ₂₎ to, characterized in that bonded to each other backing member of an arbitrary length in a longitudinal direction substantially in the center of each side plate portion in It is intended.

[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 that of the material of the exterior plate is provided, and each of the engaging portions of the exterior plate is provided. When the width of each face plate portion between the engaging side bent edge and the intermediate bent edge is la ₁ and lb ₁ , respectively, toward the longitudinal direction of each face plate portion on the back surface of each face plate portion, With widths la ₂ (la ₁ > la ₂ ) and lb ₂ (lb ₁ > lb ₂ ) shorter than the widths la ₁ and lb ₁ , each backing member of arbitrary length is placed at the approximate center in the longitudinal direction of each face plate. Since the face plates are attached separately, the mass of the face plate portion alone on its balanced surface portions becomes unbalanced due to the attachment of the backing members to the back surface of the face plate portions. Therefore, as a result of the non-uniform natural frequency in each part of the surface, only the face plate itself of the exterior plate without the backing member,
Since the mass of each part of the surface was in equilibrium, the entire surface was integrally and continuously generated, and the initial vibration of the face plate itself was generated between the parts of the surface caused by the attachment of the backing member. Based on the difference or imbalance in natural frequency between the two, they directly cancel each other out, and it is possible to positively and effectively suppress the generation of noise, which is the generation of 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, when each backing member is made of polyester or the like 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, so that noise generation can be suppressed accordingly. It is possible.

〔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 3.

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 part which forms the main body of the covering part in the center in the width direction (upper and lower width directions in the case of an exterior plate) and is divided into a plurality by intermediate bending edges (3) in the width direction middle 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), Face plate portions (2a) and (2b) having widths la ₁ and lb _{1 which} are relatively susceptible to free vibration are formed between (9) and the intermediate bent edge (3), respectively. Cage, these face plate parts (2a),
For (2b), the surface density, plate thickness, toughness, and the form of the metal thin steel sheet, which is the material to be used, and the size of the effective surface area set for each part, etc. The natural frequencies (Aa) and (Ab) are given to the individual face plate portions (2a) and (2b), respectively, and the predetermined natural frequency (A) is given to the total of them.

On the other hand, (11) is each face plate part (2) of the thatched roof plate (1).
It is a backing member made of a heterogeneous material having an areal density different from that of the metallic materials of a) and (2b). The backing member (11) has an appropriate thickness and, as will be described later, in the state of being adhered to the back surfaces of the face plate portions (2a) and (2b), respectively, in the adhered portion. Each face plate part (2
It is necessary to use a material that can sufficiently change the natural frequencies (Aa) and (Ab) of a) and (2b).

That is, the backing member (11) has a rubber plate or rubber sheet having a specific natural frequency (B) different from the natural frequencies (Aa) and (Ab) of the face plate portions (2a) and (2b). , Vinyl chloride board,
A vinyl chloride sheet or the like 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 (B) is used as a material to be used, and in particular, the width of each face plate portion (2a), (2b) Widths la ₂ (la ₁ > la ₂ ) and lb ₂ (lb ₁ > shorter than la ₁ and lb ₁
Prepare each backing member (12a) and (12b) of lb ₂ ).

In the configuration of the first embodiment, as shown in FIG.
On the back side of the face plate part (2a) having the natural frequency (Aa) in the side-roofing roof plate (1), at a predetermined position in the width direction by its width la ₁ , for example, in the middle part in the width direction, the eaves side molding part. A backing member (parallel to the direction of (4) and the ridge-side forming part (5)) having a natural frequency (B) and a width la ₂ (la ₁ > la ₂ ) over the entire length in the longitudinal direction ( 12a), and similarly, the natural frequency (A
The direction of the eaves side molding part (4) and the ridge side molding part (5) on the back surface of the face plate part (2b) having b) at a predetermined position in the width direction by the width lb ₁ , for example, in the middle part in the width direction. Over the entire length in the longitudinal direction parallel to the, with natural frequency (B) and width lb ₂ (l
The backing members (12b) with b ₁ > lb ₂ ) are adhered in series so as not to fall off easily, and both of them, and thus the whole, are integrated.

In the first embodiment, the backing members (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 thatched roof plate (1), respectively. 12
Before attachment of a) and (12b), natural frequencies (Aa) and (A
b), and then the series of natural frequencies (A) is changed to the width la ₂ (la ₁ ) having the natural frequencies (B) of the face plate portions (2a) and (2b) to the predetermined positions on the back surface side. ＞ la ₂ ), lb ₂ (lb ₁ ＞ l
b ₂₎ and has been the backing member (12a), (by respectively integrating sticking of 12b), only with respect to the attaching portion, the natural frequency of the natural frequency of both (A), (B ) Changes to the natural frequency (A, B).

As a result, each thatched roofing board constructed in this way (1)
In the lateral thatched roof structure that has been raised by the above method, for example, the impact external pressure of raindrops and the external pressure of wind scraping are continuously applied to the respective face plate portions (2a) and (2b) of the roof surface, and to the entire roof surface When added, each backing member (12a), (12b)
Since the natural frequencies (A) and (A, B) of the part where is not attached and the part where this is attached are different from each other, the mass of each surface part becomes imbalanced. To be done.

Therefore, the natural vibration of the frequency (A), which has been conventionally generated by a series of the individual surface plates (2a) and (2b), becomes the natural vibration between these surface parts. Due to the difference in the numbers (A) and (A, B), they are directly canceled, and each face plate portion (2a) and (2b), and by extension,
The generation of noise as a total vibration that combines these two parts is positively and effectively suppressed. That is, the sound damping property can be significantly improved by the vibration damping effect.

Further, as selection criteria for the natural frequencies (Aa) and (Ab) of the face plate portions (2a) and (2b) and the natural frequencies (B) of the backing members (12a) and (12b), In addition to the difference in surface density between the two, selection can be made on the basis of the difference in specific gravity between the two, and this can also achieve similar actions and effects.

Furthermore, the widths la ₂ (la ₁ > l) of the backing members (12a) and (12b) with respect to the widths la ₁ and lb ₁ of the face plate portions (2a) and (2b), respectively.
Regarding a ₂ ), lb ₂ (lb ₁ > lb ₂ ), the width dimension ratio l
a ₁ : la ₂ , lb ₁ : lb ₂ is 1: 1/2, and thus la ₁ ≈ 2la ₂ , lb ₁
≈2 lb ₂ relationship, that is, width la ₁ , lb ₁ vs. width la ₂ , lb
You may set ₂ to 1/2, or about 1/2.

That is, as shown in the experiment of the present inventor, each face plate portion (2a),
Backing members (12a), (1 for widths la ₁ , lb ₁ of (2b)
2b) width la ₂ (la ₁ > la ₂ ) <lb ₂ (lb ₁ > lb ₂ ) is set to about 1/2, each of these backing members (12
If the backing member is attached to the entire back surface of the face plate against the noise level generated when a) and (12b) are not attached, the noise level reduction rate is about 7%.
It was confirmed that a value of about 5% was obtained. 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 dimension ratio is set to about 1: 1/4, the noise level is reduced by about 60%, and the face plate parts (2a) and (2b) It is extremely effective in terms of noise suppression to partially attach the backing members (12a) and (12b) having different surface densities to the back surface.
Or it was fully demonstrated that it is characteristic.

On the other hand, as for the attachment positions of the backing members (12a) and (12b) to the back surfaces of the face plate portions (2a) and (2b), the vibration generating surface can be seen as in the configuration of the first embodiment. However, it is effective that they are the center of vibration of each face plate part (2a), (2b), that is, the middle part in the width direction. However, depending on the given cross-sectional shape, the center of vibration may not necessarily be located at the center in the width direction of each face plate (2a), (2b), so choose the center of vibration as much as possible. 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 (12a), (12b) to the back surface of each face plate portion (2a), (2b),
Like the configuration of the embodiment, it may be attached over the entire length of each face plate portion (2a), (2b) in the horizontal thatched roof plate (1). And
With 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 (12a), (12
The amount of materials used in b) 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 longitudinal direction through a discard plate (not shown) or the like.
Like the configuration of the second embodiment shown in the drawing, the backing members (12a), (1
2b) is partially omitted, that is, the bonding length of each backing member (12a), (12b) is set to each face plate part (2a), (2
By setting not to the entire length of b) but to the position close to each connection edge part (6), (7), it is possible to further facilitate the work of hoisting this side thatched roof plate (1). it can.

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 third embodiment configuration 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),
It 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 of applying it to a horizontal thatched roof plate for a thatched roof structure as a building metal face plate was described, but in addition to this, for an exterior plate and a wall panel for an exterior structure, etc. Can be applied in exactly the same manner, and particularly when applied to a metal face plate member in which the individual face plate portions are relatively wide and the intermediate bent edge is not supported on the back surface side, the effect is further enhanced. Is remarkable.

〔The invention's effect〕

As described above in detail, 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, When the width of each face plate portion between each engaging side bending edge of each engaging portion and the intermediate bending edge is la ₁ and lb ₁ , respectively,
On the back surface of each face plate part, in the longitudinal direction of each face plate part, the width la
Widths la ₂ (la ₁ > la ₂ ) and lb ₂ (lb ₁ > l shorter than ₁ and lb ₁
b ₂₎ a backing member of any length since the adhered longitudinally separate each respective substantially in the center of each side plate portion in, in the face plate part alone, the surface of each part has been balanced in itself The mass is unbalanced due to the attachment of each backing member to the back surface of each face plate portion. Therefore, as a result of the non-uniform natural frequency in each part of the surface, only the surface part itself 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 the initial vibrations of the face plate itself that have occurred due to the difference in the natural frequency between surface parts caused by the attachment of the backing member and imbalance are directly cancelled. 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 produced by the above configuration, the soundproofing property can be significantly improved.

Further, when each backing member is made of polyester or the like 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.

Further, in this manner, the structure in which each backing member is adhered to the back surface of the face plate portion, that is, the structure in which each backing member is partially adhered to a required portion, allows the entire back surface of the conventional face plate portion to be adhered. On the other hand, it is completely different from the case of 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 roofing roof plate itself, which is quite effective. It can exhibit excellent soundproofness or sound insulation.

Furthermore, by partially sticking each backing member to the required portion, the material consumption of the intervening member on the base side can be reduced, and in combination with the simplification of the structure and the ease of manufacturing, It has excellent features such as cost reduction.

[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,
The drawing is a cross-sectional view showing the schematic structure of a lateral thatched roof plate according to the third embodiment. (1)… Horizontal roofing board (lateral roofing board) (2a), (2b)… Individual face plate parts la ₁ , lb ₁ … Front and back width of each face plate part (upper and lower width for exterior plate) (3) ... Intermediate bent edge between face plate parts (4) ... Eaves side molding part (engagement part) (8) ... Eaves side molding part bent edge (5) ... Building side molding part (engagement part) ) (9) ... Bent edge of the molding part on the ridge side (6) ... Connection edge at one end in the longitudinal direction (7) ... Connection edge at the other end in the longitudinal direction (11) ... Backing member (12a) , (12b)… Each backing member la ₂ (la ₁ > la ₂ ), lb ₂ (lb ₁ > lb ₂ )… Width of each backing member (21)… Damping steel plate (resin laminated steel plate) (22) ... Synthetic resin laminate layer

Claims (6)

[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. When the width of each face plate portion between each engaging side bending edge and each intermediate bending edge of each engaging portion of the exterior plate is la ₁ and lb ₁ , respectively, each face plate portion A backing member of arbitrary length with widths la ₂ (la ₁ > la ₂ ) and lb ₂ (lb ₁ > lb ₂ ) shorter than the widths la ₁ and lb ₁ toward the longitudinal direction of each face plate portion on the back surface. A metal exterior plate in which each of the face plates is attached to the center of the face plate in the longitudinal direction. 2. The metal exterior plate according to claim 1, wherein the exterior plate and each backing member are made of materials having different specific gravities. 3. The metal exterior plate according to claim 1, wherein a resin laminated steel plate is used as a material for the exterior plate. 4. A width la of each face plate portion of the exterior plate.
4. The width la ₂ and lb ₂ of each backing member corresponding to each face plate portion is set to about 1/2 with respect to ₁ and lb ₁ , respectively. The metal exterior plate described. 5. A backing member corresponding to the entire length of each face plate portion in the longitudinal direction is separately attached to the back surface of each face plate portion of the exterior plate. A metal exterior plate according to any one of 1. 6. A back surface of each face plate portion of the exterior plate is applied to a position close to each connecting edge portion in the longitudinal direction of each face plate portion,
The metal exterior plate according to any one of claims 1 to 4, wherein the corresponding backing members are separately attached.