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    SOUNDPROOF CEILING CONSTRUCTION
    4.
    发明专利
    SOUNDPROOF CEILING CONSTRUCTION 失效

    公开(公告)号：JPH11152841A

    公开(公告)日：1999-06-08

    申请号：JP33364297

    申请日：1997-11-18

    Applicant: BRIDGESTONE CORP

    Inventor： MURAKAMI KAZUTOMO ,  TSUKADA SUSUMU ,  INABA KENJI ,  TAKESHITA MICHITAKA

    IPC: E04B1/82 ,  E04B5/43 ,  E04B9/00

    Abstract: PROBLEM TO BE SOLVED: To prevent a sound insulation property from deteriorating due to low frequency band resonant transmission and reduce noise in a medium/high frequency range by arranging sound absorbing material on one parts containing four corners in the circumference of a ceiling material contacted with the walls, and it is filled so that the section is formed into a sector shape. SOLUTION: On a ceiling slab made of a concrete slab 1 and the like, by hangers hung with anchor bolts, internally mounted ceiling material 4 is provided on one part of the ceiling face through an air layer 3. In this ceiling construction, sound absorbing material 5 is arranged on only one part containing at least four corners in the circumference of the ceiling material 4 contacted with walls. The sound absorbing material 5 is filled so that the section is formed into a sector shape. As for the sound absorbing material 5, a material constituted of a fiber aggregate having a fixed gas permeability and a ventilation resistance is used. Then, the sound insulation property against heavy weight source floor impact sound by low frequency band resonant transmission can be prevented from detecting, simultaneously light weight source floor impact noise in the medium/high frequency range can be reduced.

    SOUNDPROOF CEILING CONSTRUCTION
    5.
    发明专利
    SOUNDPROOF CEILING CONSTRUCTION 失效

    公开(公告)号：JPH11152837A

    公开(公告)日：1999-06-08

    申请号：JP33363897

    申请日：1997-11-18

    Applicant: BRIDGESTONE CORP

    Inventor： MURAKAMI KAZUTOMO ,  TSUKADA SUSUMU ,  INABA KENJI ,  TAKESHITA MICHITAKA

    IPC: E04B1/82 ,  E04B5/43 ,  E04B9/00 ,  E04B9/02 ,  E04C2/36

    Abstract: PROBLEM TO BE SOLVED: To improve sound insulation in a low frequency range in addition to sound insulation in a medium/high frequency range to reduce ceiling noise level by arranging an internally mounted ceiling of honeycomb construction under a ceiling slab to form a double ceiling. SOLUTION: A blindfold member 3 is hangingly arranged on a ceiling slab 1 made of concrete slab and the like through anchor bolts 11, and an air layer 2 is formed between it and the ceiling slab 1. The blindfold member 3 is in honeycomb construction formed out of aluminum, paper, and the like, and provided with many hexagonal vent holes. This blindfold member 3 is used as an internally mounted ceiling, or as a ceiling bed material to which a gas permeable ceiling material such as woven fabric is stuck through cradling to cover the vent holes. Hereby, resonant sound of low frequency generating in the closed air layer is transmitted and reduced by the gas permeability of the blindfold member 3, sound insulation in the medium/high frequency range is improved by a double ceiling construction, and hence ceiling noise can be lowered.

    WOOD FINISHED MATERIAL
    6.
    发明专利
    WOOD FINISHED MATERIAL 失效

    公开(公告)号：JPH10264105A

    公开(公告)日：1998-10-06

    申请号：JP34444797

    申请日：1997-11-28

    Applicant: BRIDGESTONE CORP

    Inventor： AOKI SEI ,  YANAGI HIDESHI ,  YOSHIDA TAKEICHI ,  TAKESHITA MICHITAKA ,  ABE MASANORI

    IPC: B27D5/00 ,  E04C2/12

    Abstract: PROBLEM TO BE SOLVED: To make a finished material highly antimarring and manufacture it at a low cost. SOLUTION: This wood finished material is manufactured by lapping a prepreg-state sheet 2 containing a heat-setting resin on a base board 1 which can be impregnated with a resin, then lapping a decorative material 3 which can be impregnated with a resin on the sheet 2 and bonding these materials together by heat pressing. The heat-setting resin is a phenol resin whose viscosity oat 25 deg.C is 0.1-50 P.

    LIGNEOUS FINISHING MATERIAL
    7.
    发明专利
    LIGNEOUS FINISHING MATERIAL 失效

    公开(公告)号：JPH10114024A

    公开(公告)日：1998-05-06

    申请号：JP23772897

    申请日：1997-08-19

    Applicant: BRIDGESTONE CORP

    Inventor： AOKI SEI ,  YANAGI HIDESHI ,  YOSHIDA TAKEICHI ,  TAKESHITA MICHITAKA ,  ABE MASANORI

    IPC: B27D5/00 ,  B29C70/06 ,  B29K105/08 ,  B29L31/00 ,  B32B21/08 ,  E04F13/10

    Abstract: PROBLEM TO BE SOLVED: To provide a ligneous finishing material at low cost in which marring resistance is excellent. SOLUTION: The ligneous finishing material is produced by superposing a sheet 2 being in a prepreg state containing a thermosetting resin on a baseplate 1 capable of impregnation of a resin and a superposing decorative material 3 capable of impregnation of a resin on the sheet 2 and performing thermal press to mutually bond them. The sheet 2 consists of glass nonwoven fabric which is constituted of an individual glass fiber or of fiber mixed with other fiber and impregnated with a thermosetting resin.

    SOUNDPROOF DOOR
    8.
    发明专利
    SOUNDPROOF DOOR 失效

    公开(公告)号：JPH10102936A

    公开(公告)日：1998-04-21

    申请号：JP27419196

    申请日：1996-09-25

    Applicant: BRIDGESTONE CORP

    Inventor： MURAKAMI KAZUTOMO ,  TSUKADA SUSUMU ,  INABA KENJI ,  TAKESHITA MICHITAKA

    IPC: E06B3/82 ,  E06B5/20

    Abstract: PROBLEM TO BE SOLVED: To efficiently reduce a noise (a standing wave) of a low frequency band by incorporating resonance sound absorbing mechanisms into a door of a hollow structure or a solid structure. SOLUTION: In a door 1, resonance sound absorbing mechanisms 2 are incorporated by a pair above and below into the door 1. These resonace sound absorbing mechanisms 2 have a main body part 21 having a cavity part, a neck part 22 having a communicating passage to communicate with the cavity part of this main body part 21 and an opening part 23 opening toward the outside of this neck part 22. These resonance sound absorbing mechanisms 2 reduce and absorb a standing wave generated in a room arranged by using a resonance phenomenon by mass of air existing in the communicating passage of the neck part 22 and a spring component of air of the cavity part. Therefore, since they are embedded in the door even in an exclusive installing space nonexistent narrow place or the like, they can be constituted without jumping out into the room, and a space can be effectively used, and since the door is substantially formed as a double structure, sound insulating performance can be enhanced further by that extent.

    METHOD FOR CONNECTING RESIN PANELS TO EACH OTHER
    9.
    发明专利
    METHOD FOR CONNECTING RESIN PANELS TO EACH OTHER 失效

    公开(公告)号：JPH1018447A

    公开(公告)日：1998-01-20

    申请号：JP19133196

    申请日：1996-07-01

    Applicant: BRIDGESTONE CORP

    Inventor： NAKAZAWA KAZUMA ,  YAMADA KOTARO ,  SHINPO MUNETOSHI ,  TAKESHITA MICHITAKA

    IPC: E04B1/68 ,  E04B1/61 ,  E04B2/72

    Abstract: PROBLEM TO BE SOLVED: To improve waterproofness at the place of a Joint by covering a joint section with a resin of the same kind as a panel. SOLUTION: Seal members 2 consisting of a resin of the same kind as the resin of panels or a resin having high adhesive properties with the resin are applied so as to cover joints at the mutual abutting places of the panels 1 at the mutual abutting places of a large number of the panels 1 made of the resin installed onto various wall surfaces, etc., in which heat-insulating properties and waterproofness are required. The seal members 2 and the joint sections of the panels 1 are heated, and the resin in the joint sections of the panels 1 and the resin in the seal members 2 are melted.

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