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 form; Layered products having particular features of form
  • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
  • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
  • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
  • E04F15/182—Underlayers coated with adhesive or mortar to receive the flooring
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
  • E04F15/185—Underlayers in the form of studded or ribbed plates
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
  • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
  • E04F15/206—Layered panels for sound insulation
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
  • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems

Definitions

• the present invention relates to a plate for reducing interlayer noise/vibration in a building and a noise/vibration reduction structure comprising the same, and more particularly to a plate for reducing interlayer noise/vibration in a building, which employs a vibration-proof material and a vibration-proof layout so as to remarkably reduce interlayer noise/vibration in the building, and a noise/vibration reduction structure comprising the same.
• a noise-isolating member for impact absorption is disclosed in Korean Utility Model Registration No. 337780, and a cross-section thereof is shown in Fig. 1. Referring to Fig.
• the conventional noise-isolating member 100 comprises a first fiber layer 110 located at the bottom of the noise-isolating member 100 and composed of synthetic resin yarns, a three-dimensional net-shaped matt layer 120 composed of a synthetic resin, stacked on the first fiber layer 110, and non-irregularly bent to form a plurality of ridges and grooves, a second fiber layer 130 located on the three- dimensional net-shaped matt layer 120 and composed of the synthetic resin yarns, a third fiber layer 140 located on the second fiber layer 130 and composed of the synthetic resin yarns, a Styrofoam 150 stacked on the third fiber layer 140, and a noise- isolating sheet 160 for impact absorption stacked on the Styrofoam 150.
• reference numeral 30 indicates a finishing mortar
• reference numeral 32 indicates a heating pipe
• reference numeral 20 indicates an aerated concrete layer.
• the noise- isolating member 100 is located on a concrete slab 10.
• Multilayer structure of an interlayer vibration-proof material for a building is disclosed in Korean Utility Model Registration No. 312358, and a cross-section thereof is shown in Fig. 2.
• the conventional interlayer vibration-proof material 11 is positioned between a floor slab 1 and an aerated concrete layer 12 to reduce interlayer noise caused by floor impact.
• the conventional interlayer vibration- proof material 11 comprises a high density layer 15 composed of a synthetic rubber vibration-control sheet, an irregular feature 13 formed on an upper surface of the high density layer 15, and air layers 14 uniformly spaced from each other in a lower surface of the high density layer 15.
• the multilayer structure of the interlayer vibration-proof material is formed in such a manner that, after disposing a medium density layer 16 composed of cross-linked polyolefin foam and a low density layer 17 composed of non- cross-linked polyolefin foam on the lower end or the upper and lower ends the high density layer 15, the stacked layers are thermally compressed.
• the conventional interlayer noise-isolating or vibration-proofing structure is constructed by stacking the noise absorbent or isolating materials and forming appropriate air layers, and is located on the concrete slab.
• transmittance is significantly varied depending on quality of the air layers and of the noise absorbent or isolating materials, and in the case of building which require a high level of vibration-proof effect, construction costs thereof are increased by that amount.
• the present invention has been made in view of the above problems, and it is an object of the present invention to provide a plate for reducing interlayer noise/vibration in a building, which employs a particular vibration-proof layout based on a principle of a chord in a stringed instrument for preventing vibration and noise as well as a vibration-proof material, thereby enhancing vibration-proof effect at low cost, and a noise/vibration reduction structure comprising the same.
• a plate for reducing interlayer noise/vibration in a building comprising an intermediate noise shielding layer including upper and lower plastic plates having a plurality of plastic posts interposed therebetween, and a noise absorbent vinyl pipe closed at both ends and disposed between the plastic posts so as to contact the plastic posts.
• the plate further comprises a rubber pad layer disposed on one of upper and lower sides of the intermediate noise shielding layer. More preferably, the plate further comprises upper and lower rubber pad layers disposed on upper and lower sides of the intermediate noise shielding layer, respectively.
• the noise absorbent vinyl pipe is inserted between the plastic posts in an alternating manner.
• the noise absorbent vinyl pipe is equipped with a plurality of supporting plates, each having a through hole formed therein, thereby preventing the noise absorbent vinyl pipe from being deformed.
• the plate further comprises non-woven fabrics inserted between the plastic posts so as to contact the plastic posts between which the noise absorbent vinyl pipe is inserted.
• the non-woven fabrics are preferably disposed in two layers with the noise absorbent vinyl pipe interposed between the layers.
• the rubber pad layer comprises a rubber layer and a fabric layer alternately disposed therein.
• the rubber layer has a pipe embedded therein.
• the pipe is equipped with a plurality of supporting plates, each having a through hole formed therein, thereby preventing the pipe from being deformed.
• the pipe and the noise absorbent pipe are disposed to transverse each other.
• Each of the plastic plates and each of the plastic posts are composed of a reinforced plastic including PC, PBT or a combination thereof.
• a structure for reducing interlayer noise/vibration in a building comprising: the plate for reducing interlayer noise/vibration; a concrete slab; and a plurality of vibration-proof supporting portions equipped between the plate and the concrete slab.
• the noise absorbent vinyl pipe of the plate is inserted between the plastic posts in an alternating manner, and the plate further comprises non-woven fabrics inserted between the plastic posts so as to contact the plastic posts between which the noise absorbent vinyl pipe is inserted.
• each of the vibration-proof supporting portions comprises: a supporting plate having a predetermined thickness, the supporting plate having a depressed portion at one side to which an absorbent material is attached, and a protruded portion at the other side; a fixing plate, one side of which contacts the protruded portion of the supporting plate; upper and lower rubber plates attached to the fixing plate; and a bottom plate attached to the lower rubber plate so as to contact the bottom of the structure.
• Fig. 1 is a cross-sectional view illustrating one example of a conventional interlayer noise/vibration reduction structure in a building
• Fig. 2 is a cross-sectional view illustrating another example of the conventional interlayer noise/vibration reduction structure in the building
• Fig. 3 is a perspective view illustrating a plate for reducing interlayer noise/vibration in a building according to the present invention
• Fig. 4 is a cross-sectional view illustrating a plate for reducing interlayer noise/vibration in a building according to one embodiment of the present invention
• Fig. 1 is a cross-sectional view illustrating one example of a conventional interlayer noise/vibration reduction structure in a building
• Fig. 2 is a cross-sectional view illustrating another example of the conventional interlayer noise/vibration reduction structure in the building
• Fig. 3 is a perspective view illustrating a plate for reducing interlayer noise/vibration in a building according to the present invention
• Fig. 4 is a
• FIG. 5 is a cross-sectional view illustrating a plate for reducing interlayer noise/vibration in a building according to another embodiment of the present invention
• Fig. 6 is a cross-sectional view illustrating a noise reducing structure comprising the plate for reducing interlayer noise/vibration in the building according to the present invention
• Fig. 7 is a longitudinal sectional view illustrating the construction of a vibration-proof supporting portion.
• Figs. 8a and 8b show two examples of a possible layout of a noise absorbent vinyl pipe shown in Fig. 4; and
• Figs. 9a and 9b show a noise/vibration test instrument, which is used for testing an inventive example shown in Fig. 9a, and a comparative example shown in Fig. 9b.
• a plate 2000 for reducing interlayer noise/vibration in a building according to the embodiment generally comprises a lower rubber pad layer 1100, an intermediate noise shielding layer 1200 disposed on the lower rubber pad layer 1 100, and an upper rubber pad layer 1300 disposed on the intermediate noise shielding layer 1200.
• the lower and upper rubber pad layers 1100 and 1300 have the construction in which a rubber layer 1110 and a fabric layer 1120 are alternately stacked.
• each of the rubber pad layers comprises five rubber layers 1110 and two fabric layers 1 120.
• Three of the five rubber layers 1 1 10 are located at the central region of the rubber pad layer, and the rubber layer located at the center of the three rubber layers in the rubber pad layer has a pipe 1130 positioned within.
• the pipe 1 130 ensures that an air layer is present in the middle of the rubber layers 110, reducing transmission of noise and vibration.
• the pipe 1 130 is equipped with a plurality of supporting plates 1131, each of which has a through-hole therein, thereby preventing the pipe 1130 from being deformed.
• the intermediate noise shielding layer 1200 comprises upper and lower plastic plates 1210 having a plurality of plastic posts 1220 interposed therebetween, and a noise absorbent vinyl pipe 1230 disposed between the plastic posts 1220 so as to contact the plastic posts and closed at both ends of the noise absorbent vinyl pipe 1230.
• Each of the plastic plates 1210 and each of the plastic posts 1220 are composed of a reinforced plastic including PC, PBT or a combination thereof.
• the plastic plates 1210 and the plastic posts 1220 are advantageously integrated so as to enhance strength thereof.
• the noise absorbent vinyl pipe 1230 serves to reduce the noise and vibration transmitted from the upper rubber pad layer 1300 along the plastic plates 1210 and the plastic post 1220 by absorbing them.
• the noise absorbent vinyl pipe 1230 is inserted between the plastic posts 1220 in an alternating manner, and constructional examples are shown in Figs. 8a and 8b.
• the noise absorbent vinyl pipe 1230 is equipped with a plurality of supporting plates 1231, each having a through hole 1232 formed therein, so that the noise absorbent vinyl pipe 1230 is prevented from being deformed.
• the plate 2000 further comprises non- woven fabrics 1240 inserted between the plastic posts 1220 so as to contact the plastic posts 1220 between which the noise absorbent vinyl pipe 1230 is inserted, thereby additionally absorbing the noise and vibration which are not completely absorbed by the noise absorbent vinyl pipe 1230.
• the noise absorbent vinyl pipe 1230 and the pipe 1 130 are disposed to transverse each other so as to absorb various components of the noise and vibration. At this time, an angle between the noise absorbent vinyl pipe 1230 and the pipe 1130 is preferably about 90°.
• Embodiment 2 In Fig. 5, the construction of a plate for reducing interlayer noise/vibration in a building according to a second embodiment of the invention is shown. As shown in Fig. 5, overall construction of the second embodiment is similar to that of the first embodiment, except for the non- woven fabrics 1240 which are disposed in two layers with the noise absorbent vinyl pipe 1230 interposed between the non- woven fabrics 1240. As a result, more complete vibration-proof and noise-proof effects can be achieved.
• Embodiment 3 A third embodiment of the invention relates to a noise reducing structure comprising the plate as described above, and the detailed construction thereof is shown in Fig. 6.
• the structure of the third embodiment further comprises a plurality of vibration-proof supporting portions 1400 equipped under the plate.
• the vibration-proof supporting portions 1400 are supported on an upper surface of a concrete slab, and serve to provide the vibration-proof effect.
• Fig. 6 A third embodiment of the invention relates to a noise reducing structure comprising the plate as described above, and the detailed construction thereof is shown in Fig. 6.
• the structure of the third embodiment further comprises a plurality of vibration-proof supporting portions 1400 equipped under the plate.
• the vibration-proof supporting portions 1400 are supported on an upper surface of a concrete slab, and serve to provide the vibration-proof effect.
• each of the vibration-proof supporting portions 1400 comprises a supporting plate 1410 having a predetermined thickness, which has a depressed portion 1412 formed at one side so as to allow an absorbent material 1416 to be attached to the depressed portion 1412 and a protruded portion 1414 formed at the other side, a fixing plate 1420, one side of which contacts the protruded portion 1414 of the supporting plate 1420, upper and lower rubber plates 1430 and 1450 attached to the fixing plate 1420; and a bottom plate 1460 attached to the lower rubber plate 1450 so as to contact the bottom of the structure.
• the plate for reducing interlayer noise/vibration in the building according to the invention may be easily assembled onto one layer of the concrete slab 1500 (see Fig.
• the plate of the embodiments is described as being applied between the layers of the building, the plate of the invention may also be positioned between the walls of the building. Operation of the invention will now be described with reference to Figs. 3 and 4. First, if noise and vibration generated in an upper layer are transmitted to a lower layer through the bottom of the upper layer, they are absorbed by the upper rubber pad layer 1300.
• the remaining component of the noise and vibration is transmitted through the plastic plates 1210 and the plastic posts 1220, and at this time, shaking of the plastic posts 1220 is transmitted to the noise absorbent vinyl pipe 1230 contacting the plastic posts 1220, whereby the shaking of the plastic posts 1220 is absorbed and removed in the noise absorbent vinyl pipe 1230.
• the rest component of the noise and vibration is also absorbed by the non- woven fabrics 1240 while being absorbed by the lower rubber pad layer 1100. As such, the noise-proof and vibration-proof effect are completely achieved by the construction and material of the plate according to the invention.
• Test Example Figs. 9a and 9b show a noise-vibration test instrument, which is used for testing an inventive example shown in Fig. 9a, and a comparative example shown in Fig. 9b.
• the test is performed only for the intermediate noise shielding layer 1200 without having the upper and lower rubber pad layers 1300 and 1100 among the components of the plate according to the invention shown in Fig. 4, in which the plastic posts and plastic plates are composed of a reinforced plastic material combined with PC and PBT.
• the comparative example a single plastic plate made of the reinforced plastic material combined with PC and PBT is used.
• the plastic plate has an area of 17 x 20 cm 2 , a thickness of 1 cm, and a space of 3 cm from the other one.
• Each of the plastic posts has a diameter of 1.5 mm.
• the plate for reducing interlayer noise/vibration is surrounded by a noise absorbent film 1700, and a noise detector 1900 is located 10 cm below the plate. Then, noise is detected after dropping a wooden ball 1600 having a weight of 5.6 g from a height of 50 cm. The noise is detected for 1 minute, and results thereof are shown in Table 1.
• MaxP indicates the maximum noise level in decibels
• Leq indicates an equivalent noise level in decibels. Table 1
• the inventive example has remarkable noise reduction effect. Accordingly, it can also be appreciated that if a rubber pad is added to the plate of the inventive example, more remarkable noise reduction effect will be achieved.
• the noise absorbent vinyl pipe serves to absorb noise and vibration transmitted downward therethrough, thereby providing higher noise reduction effect by use of a noise-proof material even in a medium level in comparison to the plate made of expensive materials.

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Citations (5)

• 2004
  • 2004-03-18 KR KR20-2004-0007464U patent/KR200352230Y1/ko not_active IP Right Cessation
• 2005
  • 2005-03-18 CN CNA2005800086092A patent/CN1934324A/zh active Pending
  • 2005-03-18 JP JP2007503841A patent/JP2007529659A/ja active Pending
  • 2005-03-18 WO PCT/KR2005/000788 patent/WO2006001578A1/en active Application Filing

Patent Citations (5)

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