EP1400636A1 - Hollow panel - Google Patents
Hollow panel Download PDFInfo
- Publication number
- EP1400636A1 EP1400636A1 EP03021112A EP03021112A EP1400636A1 EP 1400636 A1 EP1400636 A1 EP 1400636A1 EP 03021112 A EP03021112 A EP 03021112A EP 03021112 A EP03021112 A EP 03021112A EP 1400636 A1 EP1400636 A1 EP 1400636A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow
- panel
- hollow portions
- panel according
- portions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims description 19
- 238000009413 insulation Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002023 wood Substances 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000004035 construction material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
-
- 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
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
- E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
-
- 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
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
-
- 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
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
- E04B2001/8471—Solid slabs or blocks layered with non-planar interior transition surfaces between layers, e.g. faceted, corrugated
-
- 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
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
Definitions
- the present invention relates to a hollow panel, and more particularly to a hollow panel which is suitably used as a construction material such as a wall material, a floor material, and a ceiling material.
- hollow panels having hollow portions are employed as various kinds of panels for construction.
- a hollow panel it is possible to realize heat insulation and weight reduction.
- two corrugated plates in which end faces have a corrugated shape are sandwiched between twoflatplates constituting surfaces to form one panel, and hollow portions corresponding to the corrugated shape are laterally extended (for example, see JP-A-7-214712).
- the hollow panel disclosed in JP-A-7-214712 has a configuration in which the two corrugated plates are stacked back to back so that projections of the plates abutted against each other are sandwiched between the flat plates.
- hollow portions of different sectional areas are internally enclosed, so that a lack of sound insulation due to the coincidence effect which may be caused at a specific frequency can be improved.
- the hollow panel disclosed in JP-A-7-214712 is configured so that the sectional areas of the hollow portions are differentiated by using the two corrugated plates, a disadvantage that the whole thickness of the hollow panel is increased, and other disadvantages that the cost burden due to the increased number of components is inevitably imposed, and that the corrugated plates must be bonded together to increase the number of assembly steps are caused.
- the invention has been conducted in view of the disadvantages. It is an object of the invention to provide a hollow panel which can effectively exhibit the sound insulation performance while suppressing the panel thickness, and in which the number of components can be reduced, so that labor in the work of forming the panel can be reduced and the production cost can be reduced.
- the invention is characterized by having the following arrangement.
- a configuration may be employed in which a solid portion forming member is inserted into a specific one (s) of the plural hollow portions, the solid portion forming member having a sectional area which generally corresponds to a sectional area of the specific hollow portion(s).
- the solid portion forming member is placed in an arbitrary one (s) of the hollow portions, whereby the surface density can be partially differentiated. Therefore, the invention can be easily applied even to an existing hollow panel so as to suppress a lack of sound insulation.
- the hollow panel of the invention can be formed by using any of various materials, and preferably formed by using wood elements.
- wood elements are wood flakes, wood fibers, wood chips, and wood particles.
- the wood elements may be shaped into a panel-like shape by die molding.
- a binder which is useful in the molding any one of a foamable binder resin, a nonfoamable binder resin, and a mixture of these binders may be employed.
- the hollow panel can be produced by die molding in the following manner. A fixed amount of wood elements are sprayed into dies, and cores corresponding to the shapes of the hollow portions are then laterally arranged in a substantially same plane. A further fixed amount of wood elements are sprayed onto the arrangement. Under this state, . a hot pressing process is performed. The dies are opened, and the cores are then pulled out, whereby a panel in which hollow portions are integrally formed can be shaped.
- the hollow panel may be obtained by another shaping method in the following manner. Two front members having a thin plate-like shape, and a single hollow portion forming member which is similar in shape to a galvanized steel sheet, or in which the end faces have a corrugated shape are separately formed. The front members are bonded together by an adequate adhesive agent so as to sandwich the hollow portion forming member.
- Fig. 1 is a schematic perspective view of a hollow panel according to a first embodiment
- Fig. 2 is an end view of a part of the hollow panel.
- a hollow panel 10 that can be used as a construction material such as a wall panel, a floor panel, and a ceiling panel comprises a pair of flat outer sides 11 which are substantially parallel to each other, and plural hollow portions 12 which are positioned between the outer sides 11 so as to be arranged in a substantially same plane.
- Each of the hollow portions 12 has a shape which linearly extends in a direction perpendicular to the plane of the sheet of Fig. 2.
- the hollow portions 12 are formed so that partition walls 13 which are arranged at predetermined intervals in the lateral directions in the figure are inclined by an approximately same angle and to alternately different directions.
- each of the hollow portions 12 shows an approximately trapezoidal section shape.
- first hollow portions 12A having a smaller lateral width W1 and second hollow portions having a lateral width W2 which is larger than the lateral width W1 are formed so as to be alternately positioned along the lateral direction in Fig. 2, so that the adjacent hollow portions 12A and 12B are disposed to be alternately different or nonuniform in sectional area.
- the lateral widths W1 and W2 of the first and second hollow portions 12A and 12B are indicated as those at the respective middle positions in the panel thickness direction because of the following reason. Since the partition walls 13 are inclined, the thicknesses are shown with reference to the respective middle positions for the sake of convenience. Alternatively, the partition walls 13 may not be inclined, and may be modified so as to have a sinusoidal waveform, or an approximately pulse-like waveform so that the partition walls 13 are perpendicular to the outer sides in the panel thickness direction. As shown in Fig. 3, the hollow panel 10 may further comprise third hollow portions 12C which have a more larger width.
- the lateral ends 10A in Fig. 1 have a closed structure in which the hollow portions 12 are not formed.
- the rigidity is provided so that lateral end portions of the outer sides 11 are prevented from being bent in a direction perpendicular to the panel plane, whereby the shape retention property can be maintained.
- the first and second hollow portions 12A and 12B are formed so as to have different sectional areas, and hence the relationships are attained in which the surface densities of areas substantially corresponding to the hollow portions 12A and 12B are different. Therefore, a structure where the resonance frequency of the panel due to the sectional areas or sizes of the hollow portions is not uniform in the panel plane but dispersed is formed, and a lack of sound insulation caused by resonance at a specific frequency can be effectively suppressed.
- Fig. 4 shows a second embodiment of the invention.
- the embodiment is characterized in that, although the hollow portions 12 have the same sectional area, different thicknesses T1 and T2 of the partition walls 13 between the hollow portions 12 alternately appear.
- the thicknesses are set so as to have a relationship of T1 > T2.
- the embodiment has a structure where the panel resonance frequency is not uniform in the plane of the hollow panel 10, and can exert the same sound insulation effect as that of the first embodiment.
- Figs. 5 and 6 show a third embodiment of the invention.
- the embodiment is characterized in that a solid portion 15 is formed in a specific region where a hollow portion is to be originally formed.
- the solid portion 15 may be formed linearly in a region corresponding to a single hollow portion, or alternatively formed so as to extend over plural hollow portions 12.
- the solid portion 15 linearly extends.
- the manner of the extension is not limited to a linear one. It is possible to say that the embodiment is realized by extremely increasing the thicknesses of specific ones of the partition walls 13.
- the embodiment can exert the same effect as that of the afore-described embodiments.
- Fig. 7 shows a fourth embodiment of the invention.
- a rod-like member 16 serving as a solid portion forming member is inserted into one of the hollow portions 12.
- the rod-like member has a section shape which generally corresponds to a section shape of the hollow portion. Therefore, the surface density is partially differentiated, so that the above-mentioned sound insulation effect is attained.
- This configuration can be easily applied to a previously shaped hollow panel, so that the invention can be applied to an existing hollow panel.
- the insertion position of the rod-like member 16 is changed, it is possible to arbitrary determine the region of a different surface density.
- the rod-like member 16 may be placed in a direction intersecting with, for example, perpendicular to the direction along which the hollow portions 12 extend.
- the invention has been illustrated and described with respect to specific embodiments, those skilled in the art can variously modify as required the above-described embodiments with respect the shape, the position, the arrangement, or the like without departing from the technical concept and object of the invention.
- the embodiments and modifications can be arbitrarily combined with each other.
- the number of the rod-like member 16 may be adequately increased or decreased as required.
- Various kinds of the rod-like members 16 of different masses may be used to enable the distribution of the surface density to be finely differentiated.
- the invention it is possible to provide a hollow panel that exerts an excellent effect in which the resonance frequency of the panel is not uniform in the panel plane but dispersed and hence a lack of sound insulation due to resonance can be suppressed, and which cannot be exerted in the conventional art. Since the hollow portions are arranged in a substantially same plane, the thickness of the hollow panel can be reduced.
- a portion where the surface density is partially differentiated can be arbitrarily determined to be placed, and therefore the invention can be easily applied to suppress a lack of sound insulation.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Panels For Use In Building Construction (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Description
- The present invention relates to a hollow panel, and more particularly to a hollow panel which is suitably used as a construction material such as a wall material, a floor material, and a ceiling material.
- Conventionally, hollow panels having hollow portions are employed as various kinds of panels for construction. In such a hollow panel, it is possible to realize heat insulation and weight reduction. In a known hollow panel, two corrugated plates in which end faces have a corrugated shape are sandwiched between twoflatplates constituting surfaces to form one panel, and hollow portions corresponding to the corrugated shape are laterally extended (for example, see JP-A-7-214712). The hollow panel disclosed in JP-A-7-214712 has a configuration in which the two corrugated plates are stacked back to back so that projections of the plates abutted against each other are sandwiched between the flat plates. In a completed state of the panel, therefore, hollow portions of different sectional areas are internally enclosed, so that a lack of sound insulation due to the coincidence effect which may be caused at a specific frequency can be improved.
- Since the hollow panel disclosed in JP-A-7-214712 is configured so that the sectional areas of the hollow portions are differentiated by using the two corrugated plates, a disadvantage that the whole thickness of the hollow panel is increased, and other disadvantages that the cost burden due to the increased number of components is inevitably imposed, and that the corrugated plates must be bonded together to increase the number of assembly steps are caused.
- The invention has been conducted in view of the disadvantages. It is an object of the invention to provide a hollow panel which can effectively exhibit the sound insulation performance while suppressing the panel thickness, and in which the number of components can be reduced, so that labor in the work of forming the panel can be reduced and the production cost can be reduced.
- In order to solve the aforesaid object, the invention is characterized by having the following arrangement.
- Aspect 1. A hollow panel comprising:
- first hollow portions arranged in a substantially same plane and having first panel resonance frequency; and
- second hollow portions arranged in the substantially same plane having second panel resonance frequency different from the first panel resonance frequency.
- Aspect 2. A hollow panel according to the aspect 1, wherein each of the first hollow portion include a first sectional area; and each of the second hollow portions includes a second sectional area different from the first sectional area.
- Aspect 3. The hollow panel according to the aspect 2, wherein the first hollow portion and the second hollow portion are alternatively arranged in the substantially same plane.
- Aspect 4. The hollow panel according to the aspect 2, wherein a solid portion forming member is inserted into a specific one of the first and second hollow portions, the solid portion forming member having a section shape which substantially corresponds to a section shape of the specific hollow portion.
- Aspect 5. The hollow panel according to the aspect 2, wherein a sectional shape of the first and second hollow portions is a trapezoidal.
- Aspect 6. The hollow panel according to the aspect 1, wherein each of the first hollow portions includes a first width, and each of the second hollow portions includes a second width different from the first width.
- Aspect 7. The hollow panel according to the aspect 6, wherein the first width is defined between a pair of partition walls defining the first hollow portion, and the second width is defined between a pair of partition walls defining the second hollow portion.
- Aspect 8. The hollow panel according to the aspect 6, wherein the first and second hollow portions are alternatively arranged in the substantially same plane.
- Aspect 9. The hollow panel according to the aspect 6, wherein a solid portion forming member is inserted into a specific one of the first and second hollow portions, the solid portion forming member having a section shape which substantially corresponds to a section shape of the specific hollow portion.
-
Aspect 10. The hollow panel according to the aspect 6, wherein a sectional shape of the first and second hollow portions is a trapezoidal. -
Aspect 11. A hollow panel comprising: - first and second partition walls defining a plurality of hollow portions arranged in a substantially same plane, wherein a thickness of the first partition walls is different from that of the second partition walls.
-
Aspect 12. The hollow panel according to theaspect 11, wherein the first and second partition walls are alternatively arranged. -
Aspect 13. The hollow panel according to theaspect 11, wherein a solid portion forming member is inserted into a specific one of the hollow portions, the solid portion forming member having a section shape which substantially corresponds to a section shape of the specific hollow portion. -
- In the invention, a configuration may be employed in which a solid portion forming member is inserted into a specific one (s) of the plural hollow portions, the solid portion forming member having a sectional area which generally corresponds to a sectional area of the specific hollow portion(s). According to the configuration, the solid portion forming member is placed in an arbitrary one (s) of the hollow portions, whereby the surface density can be partially differentiated. Therefore, the invention can be easily applied even to an existing hollow panel so as to suppress a lack of sound insulation.
- The hollow panel of the invention can be formed by using any of various materials, and preferably formed by using wood elements. Examples of wood elements are wood flakes, wood fibers, wood chips, and wood particles. The wood elements may be shaped into a panel-like shape by die molding. As a binder which is useful in the molding, any one of a foamable binder resin, a nonfoamable binder resin, and a mixture of these binders may be employed.
- The hollow panel can be produced by die molding in the following manner. A fixed amount of wood elements are sprayed into dies, and cores corresponding to the shapes of the hollow portions are then laterally arranged in a substantially same plane. A further fixed amount of wood elements are sprayed onto the arrangement. Under this state, . a hot pressing process is performed. The dies are opened, and the cores are then pulled out, whereby a panel in which hollow portions are integrally formed can be shaped. The hollow panel may be obtained by another shaping method in the following manner. Two front members having a thin plate-like shape, and a single hollow portion forming member which is similar in shape to a galvanized steel sheet, or in which the end faces have a corrugated shape are separately formed. The front members are bonded together by an adequate adhesive agent so as to sandwich the hollow portion forming member.
-
- Fig. 1 is a schematic perspective partial view of a hollow panel of a first embodiment.
- Fig. 2 is a partial end view of the hollow panel.
- Fig. 3 is a partial end view of a hollow panel which is a modification of the first embodiment.
- Fig. 4 is a partial end view of a hollow panel of a second embodiment.
- Fig. 5 is a partial end view of a hollow panel of a third embodiment.
- Fig. 6 is a schematic plan view of the hollow panel of the third embodiment.
- Fig. 7 is a schematic plan view of a hollow panel of a fourth embodiment.
- Fig. 8 is a schematic plan view of a hollow panel which is a modification of the fourth embodiment.
-
- Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.
- Fig. 1 is a schematic perspective view of a hollow panel according to a first embodiment, and Fig. 2 is an end view of a part of the hollow panel. Referring to the figures, a
hollow panel 10 that can be used as a construction material such as a wall panel, a floor panel, and a ceiling panel comprises a pair of flatouter sides 11 which are substantially parallel to each other, and pluralhollow portions 12 which are positioned between theouter sides 11 so as to be arranged in a substantially same plane. - Each of the
hollow portions 12 has a shape which linearly extends in a direction perpendicular to the plane of the sheet of Fig. 2. Thehollow portions 12 are formed so thatpartition walls 13 which are arranged at predetermined intervals in the lateral directions in the figure are inclined by an approximately same angle and to alternately different directions. As a result, each of thehollow portions 12 shows an approximately trapezoidal section shape. In the embodiment, firsthollow portions 12A having a smaller lateral width W1, and second hollow portions having a lateral width W2 which is larger than the lateral width W1 are formed so as to be alternately positioned along the lateral direction in Fig. 2, so that the adjacenthollow portions hollow portions partition walls 13 are inclined, the thicknesses are shown with reference to the respective middle positions for the sake of convenience. Alternatively, thepartition walls 13 may not be inclined, and may be modified so as to have a sinusoidal waveform, or an approximately pulse-like waveform so that thepartition walls 13 are perpendicular to the outer sides in the panel thickness direction. As shown in Fig. 3, thehollow panel 10 may further comprise thirdhollow portions 12C which have a more larger width. - In the
hollow panel 10, the lateral ends 10A in Fig. 1 have a closed structure in which thehollow portions 12 are not formed. According to the configuration, the rigidity is provided so that lateral end portions of theouter sides 11 are prevented from being bent in a direction perpendicular to the panel plane, whereby the shape retention property can be maintained. - According to the thus configured first embodiment, when the whole of the single
hollow panel 10 is considered, the first and secondhollow portions hollow portions - Next, other embodiments of the invention will be described. In the following description, components which are identical with or equivalent to those of the first embodiment are denoted by the same reference numerals, and their description is omitted or simplified.
- Fig. 4 shows a second embodiment of the invention. The embodiment is characterized in that, although the
hollow portions 12 have the same sectional area, different thicknesses T1 and T2 of thepartition walls 13 between thehollow portions 12 alternately appear. The thicknesses are set so as to have a relationship of T1 > T2. - In the second embodiment also, the area of the thickness T1 is higher in surface density than that of the thickness T2, or higher in rigidity. Therefore, the embodiment has a structure where the panel resonance frequency is not uniform in the plane of the
hollow panel 10, and can exert the same sound insulation effect as that of the first embodiment. - Figs. 5 and 6 show a third embodiment of the invention. The embodiment is characterized in that a
solid portion 15 is formed in a specific region where a hollow portion is to be originally formed. As shown in Fig. 6, thesolid portion 15 may be formed linearly in a region corresponding to a single hollow portion, or alternatively formed so as to extend over pluralhollow portions 12. In the illustrated example, thesolid portion 15 linearly extends. However, the manner of the extension is not limited to a linear one. It is possible to say that the embodiment is realized by extremely increasing the thicknesses of specific ones of thepartition walls 13. - Also the embodiment can exert the same effect as that of the afore-described embodiments.
- Fig. 7 shows a fourth embodiment of the invention. In the embodiment, a rod-
like member 16 serving as a solid portion forming member is inserted into one of thehollow portions 12. The rod-like member has a section shape which generally corresponds to a section shape of the hollow portion. Therefore, the surface density is partially differentiated, so that the above-mentioned sound insulation effect is attained. This configuration can be easily applied to a previously shaped hollow panel, so that the invention can be applied to an existing hollow panel. When the insertion position of the rod-like member 16 is changed, it is possible to arbitrary determine the region of a different surface density. - As shown in Fig. 8, the rod-
like member 16 may be placed in a direction intersecting with, for example, perpendicular to the direction along which thehollow portions 12 extend. - As described above, although the best configuration, method, and the like for embodying the invention have been disclosed in the above description, the invention is not limited to them.
- Namely, although the invention has been illustrated and described with respect to specific embodiments, those skilled in the art can variously modify as required the above-described embodiments with respect the shape, the position, the arrangement, or the like without departing from the technical concept and object of the invention. For example, the embodiments and modifications can be arbitrarily combined with each other. The number of the rod-
like member 16 may be adequately increased or decreased as required. Various kinds of the rod-like members 16 of different masses may be used to enable the distribution of the surface density to be finely differentiated. - As described above, according to the invention, it is possible to provide a hollow panel that exerts an excellent effect in which the resonance frequency of the panel is not uniform in the panel plane but dispersed and hence a lack of sound insulation due to resonance can be suppressed, and which cannot be exerted in the conventional art. Since the hollow portions are arranged in a substantially same plane, the thickness of the hollow panel can be reduced.
- In the case where the configuration in which a rod-like member is inserted into a hollow portion is employed, a portion where the surface density is partially differentiated can be arbitrarily determined to be placed, and therefore the invention can be easily applied to suppress a lack of sound insulation.
Claims (13)
- A hollow panel comprising:first hollow portions arranged in a substantially same plane and having first panel resonance frequency; andsecond hollow portions arranged in the substantially same plane having second panel resonance frequency different from the first panel resonance frequency.
- A hollow panel according to claim 1, wherein each of the first hollow portion include a first sectional area; and each of the second hollow portions includes a second sectional area different from the first sectional area.
- The hollow panel according to claim 2, wherein the first hollow portion and the second hollow portion are alternatively arranged in the substantially same plane.
- The hollow panel according to claim 2, wherein a solid portion forming member is inserted into a specific one of the first and second hollow portions, the solid portion forming member having a section shape which substantially corresponds to a section shape of the specific hollow portion.
- The hollow panel according to claim 2, wherein a sectional shape of the first and second hollow portions is a trapezoidal.
- The hollow panel according to claim 1, wherein each of the first hollow portions includes a first width, and each of the second hollow portions includes a second width different from the first width.
- The hollow panel according to claim 6, wherein the first width is defined between a pair of partition walls defining the first hollow portion, and the second width is defined between a pair of partition walls defining the second hollow portion.
- The hollow panel according to claim 6, wherein the first and second hollow portions are alternatively arranged in the substantially same plane.
- The hollow panel according to claim 6, wherein a solid portion forming member is inserted into a specific one of the first and second hollow portions, the solid portion forming member having a section shape which substantially corresponds to a section shape of the specific hollow portion.
- The hollow panel according to claim 6, wherein a sectional shape of the first and second hollow portions is a trapezoidal.
- A hollow panel comprising:first and second partition walls defining a plurality of hollow portions arranged in a substantially same plane, wherein a thickness of the first partition walls is different from that of the second partition walls.
- The hollow panel according to claim 11, wherein the first and second partition walls are alternatively arranged.
- The hollow panel according to claim 11, wherein a solid portion forming member is inserted into a specific one of the hollow portions, the solid portion forming member having a section shape which substantially corresponds to a section shape of the specific hollow portion.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002274727A JP3918699B2 (en) | 2002-09-20 | 2002-09-20 | Hollow panel |
JP2002274727 | 2002-09-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1400636A1 true EP1400636A1 (en) | 2004-03-24 |
EP1400636B1 EP1400636B1 (en) | 2009-05-13 |
Family
ID=31944594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03021112A Expired - Fee Related EP1400636B1 (en) | 2002-09-20 | 2003-09-19 | Hollow panel |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040074206A1 (en) |
EP (1) | EP1400636B1 (en) |
JP (1) | JP3918699B2 (en) |
CN (2) | CN100333885C (en) |
CA (1) | CA2441749C (en) |
DE (1) | DE60327587D1 (en) |
HK (1) | HK1062546A1 (en) |
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ES2328203A1 (en) * | 2007-06-20 | 2009-11-10 | Manuel Lopez Sanchez | Mold for manufacture of attacked boards and attacked board (Machine-translation by Google Translate, not legally binding) |
DE102008057973A1 (en) * | 2008-11-19 | 2010-05-20 | Shelter And Roam Design Consulting | space cell |
WO2012052576A1 (en) * | 2010-10-22 | 2012-04-26 | Almas De Puerta, S.L. | Hollow panel and mould for the manufacture thereof |
CN102431074A (en) * | 2011-11-14 | 2012-05-02 | 南京林业大学 | Extruded shaving board with transverse holes, production method and extruder device with improved heating racking pipes |
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- 2003-09-19 CN CNU03208045XU patent/CN2673986Y/en not_active Expired - Lifetime
- 2003-09-19 US US10/666,431 patent/US20040074206A1/en not_active Abandoned
- 2003-09-19 EP EP03021112A patent/EP1400636B1/en not_active Expired - Fee Related
- 2003-09-19 DE DE60327587T patent/DE60327587D1/en not_active Expired - Lifetime
- 2003-09-19 CA CA002441749A patent/CA2441749C/en not_active Expired - Fee Related
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GB1384577A (en) * | 1972-09-06 | 1975-02-19 | Reed International Ltd | Sheet material |
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US4167598A (en) * | 1977-05-24 | 1979-09-11 | Logan Paul A | Heat and sound insulating panel |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2328203A1 (en) * | 2007-06-20 | 2009-11-10 | Manuel Lopez Sanchez | Mold for manufacture of attacked boards and attacked board (Machine-translation by Google Translate, not legally binding) |
DE102008057973A1 (en) * | 2008-11-19 | 2010-05-20 | Shelter And Roam Design Consulting | space cell |
WO2012052576A1 (en) * | 2010-10-22 | 2012-04-26 | Almas De Puerta, S.L. | Hollow panel and mould for the manufacture thereof |
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CN102431074A (en) * | 2011-11-14 | 2012-05-02 | 南京林业大学 | Extruded shaving board with transverse holes, production method and extruder device with improved heating racking pipes |
Also Published As
Publication number | Publication date |
---|---|
CN100333885C (en) | 2007-08-29 |
CN1493439A (en) | 2004-05-05 |
DE60327587D1 (en) | 2009-06-25 |
HK1062546A1 (en) | 2004-11-12 |
JP3918699B2 (en) | 2007-05-23 |
CA2441749C (en) | 2007-03-13 |
US20040074206A1 (en) | 2004-04-22 |
CA2441749A1 (en) | 2004-03-20 |
CN2673986Y (en) | 2005-01-26 |
EP1400636B1 (en) | 2009-05-13 |
JP2004108084A (en) | 2004-04-08 |
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