Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
  • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
  • B60N3/04—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
  • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
  • B60R13/08—Insulating elements, e.g. for sound insulation
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
  • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
  • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
  • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
• • G—PHYSICS
  • G10—MUSICAL INSTRUMENTS; ACOUSTICS
  • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
  • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
  • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
• • G—PHYSICS
  • G10—MUSICAL INSTRUMENTS; ACOUSTICS
  • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
  • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
  • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
  • G10K11/162—Selection of materials
  • G10K11/165—Particles in a matrix

Definitions

• the present invention relates to a soundproof material and a floor laying structure.
• resin molded bodies and fiber molded bodies may be used as disclosed in Patent Documents 1 to 4.
• the resin molded body include a molded body made of foamed resin (for example, urethane).
• the fiber molding are synthetic resin (for example, polyethylene terephthalate (Ming) and polypropylene (, etc.) fiber materials, or anti-wool fibers (for example, anti-wool fibers for clothing including nylon, wool, cotton, etc.). Woven or non-woven fabrics made of the above fibrous materials are mentioned.
• Patent Document 1 Japanese Patent Laid-Open No. 10-244648
• Patent Document 2 Japanese Patent Laid-Open No. 10-329596
• Patent Document 3 Patent No. 254 1 626 Publication
• Patent Document 4 Patent No. 3956844
• the soundproof material when the soundproof material is molded with the resin molded body, good molding may not always be possible.
• a soundproof material having a thin portion for example, a portion having a thickness of 100! or less
• the resin molded body made of foamed resin has a low shape retention property, and it is difficult to lay it and there is a problem that the resin molded body is deformed according to the packing shape (posture and shape during transportation and storage).
• the resin molded body made of foamed resin is complicated. ⁇ 2020/175282 ⁇ (: 170? 2020 /006563
• each of the soundproof material made of the resin molding and the soundproof material made of the fiber molding has advantages and disadvantages, and it is not easy to form a good soundproof material. Even if the soundproofing material is configured by combining the resin molded body and the fiber molded body, it is not always possible to solve the various problems described above. [0007] Therefore, an object of the present invention is to form a thin portion or a thick portion in a mixed manner, or even if a portion having a complicated shape exists, can be formed well, and the manufacturing process is easy. The purpose is to provide a soundproofing material and a floor laying structure whose manufacturing cost can be kept low.
• the soundproof material of the present invention comprises a fiber molded body and a resin molded body arranged so as to overlap the fiber molded body, and the fiber molded body is provided on at least a contact surface in contact with the resin molded body.
• the resin-impregnated part has a resin-impregnated part in which the resin that composes the resin molded product penetrates and mixes with the fibrous material, and a non-impregnated part that does not infiltrate the resin and consists of only the fiber material. Is characterized in that it partially includes a thick region.
• FIG. 1 A cross-sectional view of a soundproof material according to a first embodiment of the present invention.
• FIG. 2 is a cross-sectional view of a modified example of the soundproof material according to the first embodiment of the present invention.
• FIG. 3 is a perspective view of the soundproof material of Example 1.
• Fig. 4 is a cross-sectional view of the soundproofing material shown in Fig. 3. ⁇ 2020/175282 3 ⁇ (: 170? 2020 /006563
• Fig. 5 is a cross-sectional view of the resin molding of the soundproofing material shown in Fig. 3.
• Fig. 6 is an enlarged view of a main part of Fig. 5.
• FIG. 78 is a perspective view schematically showing the molding step of the fiber member.
• FIG. 78 is a perspective view of a fiber member.
• FIG. 70 is a cross-sectional view of another example of a fiber member.
• Fig. 8 is an enlarged view of a main part of a modified example of the soundproofing material shown in Fig. 3.
• FIG. 88 is an enlarged view of a main part of another modified example of the soundproofing material shown in FIG.
• FIG. 9 is a perspective view showing a specific form of the soundproof material of Example 1.
• Fig. 10 is an enlarged plan view of a main part of the soundproofing material shown in Fig. 9.
• FIG. 108 is an enlarged plan view of another main part of the soundproofing material shown in FIG.
• Fig. 11 is a perspective view of a soundproof material of Example 2.
• FIG. 12 is a perspective view of a resin molded body of the soundproofing material shown in FIG.
• FIG. 13 is an exploded perspective view of the floor laying structure including the soundproofing material shown in FIG.
• Fig. 14 is a cross-sectional view schematically showing a vehicle floor to which the floor laying structure shown in Fig. 13 is attached and internal members.
• FIG. 148 is a cross-sectional view schematically showing a state in which the floor laying structure shown in FIG. 13 is attached to the floor and internal members shown in FIG.
• FIG. 15 is a perspective view of a soundproof material of Example 3.
• FIG. 16 is a side view of the soundproof material according to the second embodiment of the present invention.
• FIG. 1 shows a soundproofing material 1 according to a first embodiment of the present invention.
• the soundproof material 1 includes a resin molded body 2 and a fiber molded body 3 which are arranged so as to overlap each other. Then, at the joint surface of the fiber molded body 3 in contact with the resin molded body 2, the resin forming the resin molded body 2 has penetrated into the fiber molded body 3 and is solidified in a mixed state with the fiber material. That is, in the interior of the fiber molded body 3, both the bonding surface of the molded resin 2 less, the resin constituting the resin molded body 2 is mixed into the resin-impregnated part 3 3 is provided in the fibrous material. On the other hand, in the fiber molding 3, resin is ⁇ 2020/175 282 4 ⁇ (: 170? 2020 /006563
• Resin-impregnated portion 3 3 a fiber molded body 3, not a parallel flat shape on the bonding surface over the entire surface, and has a large area of partial thickness.
• the resin-impregnated portion 33 it is preferable to form the resin-impregnated portion 33 so as to have a large thickness in a portion where rigidity and sound insulation must be high.
• a standing wall portion 13 which is a protruding portion extending from the joint surface with the resin molded body 2 so as to project perpendicularly or obliquely to the joint surface is provided. It is desirable that the standing wall 13 has high strength and rigidity so as not to be damaged by an external force or impact.
• the thickness of the resin-impregnated portion 33 is increased. Particularly in the thick portion of the resin-impregnated part 3 3, from the bonding surface to reach the surface on the opposite side, through the thickness of the fiber molded body 3 resin penetrates the resin-impregnated part 3 3 is provided .. In other words, in the joint surface between the resin molded body 2 of the fiber molded body 3, substantially the entire area is a resin-impregnated part 3 3. At the opposite side of the bonding surface of the molded resin 2, a resin-impregnated part 3 3 and the non-impregnated portion 3 spoon are mixed. As described above, the resin-impregnated portion 33 is provided on the surface on the side opposite to the joint surface where high rigidity and strength are required (for example, the standing wall portion 13). The other part is the non-impregnated part 3.
• the resin-impregnated portion 33 has a large thickness in a portion of the soundproof material 1 having no protrusions such as the upright wall portion 13 where particularly high sound insulation is desired. ing. In some parts of this soundproofing material 1, the resin that forms the resin molded body 2 solidifies in a state of penetrating the fiber molded body 3 in the thickness direction from the joining surface of the fiber molded body 3 to the opposite surface. doing.
• the resin-impregnated part 33 has a lower air permeability than the non-impregnated part 3 and has a large sound insulating effect.
• FIG. 5 schematically shows a cross section of the resin molding 2 of the soundproofing material 1.
• the soundproofing material 1 is arranged so that the fiber molding 3 is located inside the vehicle cabin, and the resin molding 2 is located on the opposite side (outside the cabin).
• the resin molded body 2 is molded according to the shape of the floor of the vehicle.
• the fibrous molded body 3 is formed so as to overlap two resin molded bodies 2 (see FIG. 5) that are provided separately from each other and are positioned to face each other. Then, one fiber molded body 3 is arranged astride two resin molded bodies 2 located apart from each other to connect them.
• the two resin molded bodies 2 have different shapes, but the same reference numerals are given here without distinction.
• the soundproofing material 1 is used as a floor silencer for a so-called floor laying structure, and extends from the joint surface between the resin molded body 2 and the fiber molded body 3 so as to project perpendicularly or obliquely to the joint surface.
• a standing wall portion 13 which is a protruding portion is provided.
• This standing wall portion 13 is bent and has a thin portion 1 thin wall at its tip.
• the tip of the thin portion 1 has a complicated shape and is particularly thin. It is difficult to accurately form such a complicated shape and thin portion (especially, a thickness of 1001 or less) with only the resin molded body 2 because of problems such as difficulty in demolding. is there.
• burr 10 is likely to occur.
• the resin molded body 2 and the fiber molded body 3 are used in combination. Therefore, it is possible to accurately form the thin-walled portion 1 and the portion having a complicated shape mainly depending on the characteristics of the fiber molded body 3, and it is possible to suppress the occurrence of burrs.
• the fiber molded body 3 has a low shape-retaining property, is difficult to lay, and is easily deformed according to the package shape. Therefore, for example, in Figure 6, the two-dot chain line ⁇ 2020/175 282 6 ⁇ (: 170? 2020 /006563
• the standing wall portion 13 When the standing wall portion 13 is formed to have a large wall thickness, it may be difficult to form the standing wall portion 13 with a fiber molded body. For example, when forming a floor laying structure as shown in Fig. 7 by molding a fiber member 5 with a press machine 4 as shown in Fig. 78, the standing wall part 53 is made too thick. Can not do it. In particular, as shown in Fig. 70, it is difficult to form when the standing wall portion 53 has an undercut thick portion 5 sill.
• the soundproof material 1 is formed by combining the fiber molded body 3 and the resin molded body 2. Therefore, the thick wall portion 13 can be formed with high accuracy and high rigidity mainly by utilizing the characteristics of the resin molded body 2.
• the resin molded body 2 may not be easily released from the mold and may require a release material.
• the soundproofing material 1 of the present embodiment has the fiber molded body 3 on one surface, a mold release material is not required on that surface, and good demolding can be performed.
• one surface is easy to mold release and the mold release material is not required, so that manufacturing efficiency can be improved and manufacturing cost can be reduced.
• the soundproof material 1 has a structure in which the resin molded body 2 and the fiber molded body 3 are overlapped with each other, but a portion where only one of the molded bodies is present (a single layer portion) may be provided. For example, as shown in FIGS.
• the ultrathin portion 1 can be formed by a single-layer portion composed only of the fiber molded body 3.
• the single layer portion of the fiber molded body it is possible to form a portion where the thickness gradually changes as shown in Fig. 8.
• a resin impregnated portion 33 in which a resin is mixed in a part of the fiber molded body 3 is provided.
• Resin-impregnated part 3 3 together with a high sound-insulating property lower breathability than non-impregnated portion 3 spoon resin is not mixed, strength and high rigidity by solidified resin to reinforcing fiber materials.
• At least a portion of the resin-impregnated part 3 3 may be a high rigidity portion thinner stiffness thickness than non-impregnated portion 3 spoon.
• This high-rigidity portion may be provided on the upright wall portion 13.
• FIG. 9 shows a specific shape when the soundproofing material 1 of this embodiment is used as a floor laying structure of a vehicle. As described above, the soundproofing material 1 is actually formed into a very complicated shape, and there may be a part where particularly high rigidity is required depending on the application. As described above, the resin molded body 2 and the fiber molded body 3 are used in combination, and the resin impregnated portion 33 is further provided.
• the resin-impregnated portion 33 can be partially compressed into a crushed shape in order to further increase the rigidity.
• the high-rigidity portion 16 shown in FIGS. 9, 108, and 10 is thinner and has higher rigidity than other portions (particularly, rib-shaped portions located in the periphery). This high-rigidity portion 16 achieves high rigidity by narrowing the foaming area of the resin during molding and making it thinner, and by tightly integrating the resin and the fiber material.
• the parts other than the standing wall part 13 and the thin wall part 1 are not likely to be damaged, so the resin-impregnated part 13 is formed only near the joint surface. doing.
• the resin-impregnated portion 13 improves the sound insulation and the joint strength between the resin molded body 2 and the fiber molded body 3.
• the resin-impregnated portion 13 is not made thicker than necessary, and the non-impregnated portion 1 is present on the surface opposite to the joint surface. As a result, the amount of resin used does not increase too much, which does not hinder cost reduction and weight reduction.
• the resin molded body 2 and the fiber molded body 3 are used in combination, and by utilizing their respective characteristics, various portions of the soundproofing material 1 can be formed. ⁇ 2020/175 282 8 ⁇ (: 170? 2020 /006563
• the resin molded layer 33 can be formed with high accuracy, and the 1 ⁇ 1 property (low noise property and vibration damping property) can be improved. Furthermore, by providing the resin molded layer 33 on the fiber molded body 2, it is possible to improve sound insulation, strength, and rigidity.
• the resin-impregnated layer 33 is not formed as a layer having a uniform thickness, but is provided with portions having different thicknesses. Accordingly, part, by locating the section thickness of the resin-impregnated part 3 3 is large, sound insulation and strength level and while properly improve rigidity, excessive weight reduction which is particularly required sound insulation and rigidity And high cost can be suppressed.
• a sound insulating layer may be provided on all or part of one surface of the fiber molded body 3 in order to realize a higher sound insulating property as the soundproof material 1.
• This sound insulation layer may be provided on the surface of the fiber molded body 3 that is joined to the resin molded body 2 or on the opposite surface.
• the sound insulation layer may be made of resin, and a part of it has a larger basis weight than other parts.
• each resin molded body 2 is put together into one mold and formed together with the fiber molded body 3, even though a plurality of (for example, four) resin molded bodies 2 are used, it is a troublesome work. Only one demolding is required, and work efficiency is good.
• the number of resin moldings 2 connected by one fiber molding 3 is not limited.
• the soundproof material 1 may be formed by being divided into a front portion and a rear portion in the traveling direction of the vehicle. In that case, two sound insulating materials 1 including two resin molded bodies 2 arranged side by side (a member having a structure in which the length in the front-rear direction of the sound insulating material 1 shown in Figs. 3 and 4 is shortened) are arranged side by side. Will be placed in.
• the floor carpet 6 is placed on the floor silencer 1 to form the floor laying structure.
• the floor carpet 6 may be a conventionally known member, for example, a structure in which the surface layer made of Diloa is backed by a resin layer.
• the floor silencer 1 of the present invention has a resin molding 2 such as urethane, but a fiber molding 3 is interposed between the floor silencer 1 and the floor carpet 6. As a result, resin such as urethane will not seep into the floor carpet 4.
• the floor carpet 6 and the resin molded body 2 such as urethane are separately molded and covered with the floor carpet 6.
• the resin molding 2 such as urethane is formed so that the resin is impregnated into the fiber molding 3 instead of the floor carpet 6. Even if the resin exudes to the surface of the fiber molding 3, it does not matter because it is covered with the floor carpet 6. Therefore, there is no need to worry about resin seepage. As a result, it is not necessary to use a film material for suppressing leaching. However, at least a part of the surface of the floor carpet 6 opposite to the living room can be backed by a resin layer (not shown). This improves slidability and facilitates installation and handling of floor laying structures.
• the floor silencer 1 may be composed of at least two members including a front portion and a rear portion in the traveling direction of the vehicle.
• the silencer coverage rate can be improved.
• the silencer cover ratio for the laying range (covering range) of one force can be set arbitrarily (eg, 60% may be used). According to the present invention, the silencer coverage ratio ⁇ 2020/175282 10 ⁇ (: 170? 2020/006563
• the floor silencer 1 of the present invention is required to have a certain degree of comfortable pedaling comfort at the position where the occupant's foot is placed. Therefore, as shown in FIG. 15, the footrest part 9 can be formed at a position facing the inside of the passenger compartment of the vehicle and on which the occupant's feet are placed.
• the planar shape is 3 0 0 01 01 X 4 0 0 Rectangular with a thickness of 50
• the foot rest 9 of the is installed in the floor silencer 1.
• the footrest portion 9 is made by inserting a rigid body such as beads into the resin forming the resin molded body 2. For example, 3 0 0 01 01 X 4 0 0 ⁇ 1 ⁇ ! X 5 0_Rei! ⁇ !
• Fiber molded body 3 of density / ⁇ is ⁇ . 1 9 / Rei_rei_1 3 mass 6 0 0 When Der Ru To do.
• the thickness 5 A fiber-forming body 3 the density in the thickness
• . ⁇ is ⁇ 0 3 9 / Rei_rei_1 3 snake? (Foamed polypropylene) and thickness 3500!!Density / ⁇ is ⁇ . (Polyurethane) is overlaid to form the footrest part 9, and the total mass is 3 6 9 9.
• the total weight of the footrest section 9 is 1 4 7 6 9 and can be reduced in weight. Then, by inserting a rigid body such as beads into this 11, it is possible to realize stable and good pedaling comfort.
• the soundproofing material according to the second embodiment of the present invention comprises a fiber molded body 3 and a pair of resin molded bodies 2 respectively located on both sides of the fiber molded body 3. ..
• a resin-impregnated portion 33 with low air permeability and high sound insulation and rigidity is provided on both sides of the fiber molded body 3, and the resin-impregnated portion 33 has a partially thick region.
• the rigidity can be expected to be improved by the fiber molded body 33 being cured with a resin such as urethane.
• a resin such as urethane.
• the soundproofing material 1 mainly used as a floor silencer has been described above, the present invention is not limited thereto.
• the soundproofing material 1 of the present invention is ⁇ 2020/175 282 1 1 ⁇ (: 170? 2020/006563
• the soundproof material 1 of the present invention can also be used as a soundproof material placed on a wall, ceiling, floor or the like of a building.
• the resin molded body 2 and the fiber molded body 3 are combined, and the resin molded body 2 and the fiber molded body are combined depending on the shape and thickness of the finished product.
• the body 3 to enhance more the sound insulating properties and rigidity further by resin impregnation unit 3 3. Therefore, the soundproofing material 1 excellent in accuracy and strength can be formed.
• the resin-impregnated part 3 3 instead of the resin-impregnated part 3 3 are present uniformly throughout the soundproofing material 1, and a large portion of the thickness as required, and mix with a small portion of the thickness. As a result, it is possible to properly achieve the required sound insulation and rigidity in each part, and to suppress the use of excessive resin, thereby suppressing the increase in weight and the increase in manufacturing cost.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Architecture (AREA)
• Mechanical Engineering (AREA)
• Multimedia (AREA)
• Electromagnetism (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Transportation (AREA)
• Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
• Building Environments (AREA)
• Floor Finish (AREA)
• Passenger Equipment (AREA)
• Laminated Bodies (AREA)
• Body Structure For Vehicles (AREA)

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• 2020
  • 2020-02-19 JP JP2021502094A patent/JP7368449B2/ja active Active
  • 2020-02-19 WO PCT/JP2020/006563 patent/WO2020175282A1/ja not_active Ceased

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