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    3.
    发明专利
    未知

    公开(公告)号：DE69215495T2

    公开(公告)日：1997-04-17

    申请号：DE69215495

    申请日：1992-08-19

    Applicant: SUMITOMO RUBBER IND

    Inventor： MATSUSHITA HIROOMI ,  SASAKI TERUO ,  FUJISAWA KAZUHIRO

    IPC: E04H9/02 ,  F16F1/40 ,  F16F3/093

    Abstract: An object of this invention is to design a proper shape of a laminated rubber support consisting of a laminate formed by alternately piling a plurality of hard plates and a plurality of elastic plates of a rubber-like material, and a hollow extending through the central portion of this laminate. The relation between a perpendicular buckling load PVB and the width W of the hard plates is determined by conducting a critical load test or a shearing test to determine a proper width W of the hard plates with respect to displacement Xo in the shearing direction, a standard surface pressure sigma o in the perpendicular direction, an outer diameter Do of the hard plates and the height nRTR of the laminate, whereby a laminated rubber support having a high stability with respect to load variation in the perpendicular direction is designed. A laminated rubber support as an earth-quake-proof support, in which a viscoelastic member or a plastic member is inserted and packed in the hollow mentioned above, comes to have a high stability and a high damping coefficient owing to this designing method.

    4.
    发明专利
    未知

    公开(公告)号：DE69024338D1

    公开(公告)日：1996-02-01

    申请号：DE69024338

    申请日：1990-10-09

    Applicant: SUMITOMO RUBBER IND

    Inventor： YAMAGUCHI TETSUO ,  MATSUSHITA HIROOMI ,  NIWA KUNIO

    IPC: A63B49/02 ,  A63B49/10 ,  A63B60/54 ,  A63B102/02

    Abstract: The tennis racket frame according to the present invention has the total weight of 230-300g and total length of 52-67cm and periodic damping ratio of 0.5-4.0%, which is constituted of a fiber reinforced resin composed of polyamide resin reinforced by a continuous fiber and/or long fiber reinforcing material. A resin layer containing a non-woven fabric may be provided at the inside, outside or/and in the middle of the fiber reinforced resin layer. Because of this structure, the tennis racket frame of the present invention can be light in weight and compact in size with large periodic damping property, making it possible to avoid a so-called tennis elbow.

    7.
    发明专利
    未知

    公开(公告)号：DE3578314D1

    公开(公告)日：1990-07-26

    申请号：DE3578314

    申请日：1985-07-10

    Applicant: SUMITOMO RUBBER IND

    Inventor： YAMAGUCHI TETSUO ,  MATSUSHITA HIROOMI

    IPC: A63B53/04 ,  A63B59/00 ,  A63B53/00 ,  A63B49/00

    Abstract: A ball striking instrument of such a structure that at least the main part of the instrument is fabricated so that the mechanical impedance (Z) of the ball striking part takes a minimum value (P1) in a range (D) of mechanical vibration frequency close to the frequency (Nb) at which the mechanical impedance (Z) of the ball to be struck takes a minimum value (P1).

    9.
    发明专利
    未知

    公开(公告)号：DE69215495D1

    公开(公告)日：1997-01-09

    申请号：DE69215495

    申请日：1992-08-19

    Applicant: SUMITOMO RUBBER IND

    Inventor： MATSUSHITA HIROOMI ,  SASAKI TERUO ,  FUJISAWA KAZUHIRO

    IPC: E04H9/02 ,  F16F1/40 ,  F16F3/093

    Abstract: An object of this invention is to design a proper shape of a laminated rubber support consisting of a laminate formed by alternately piling a plurality of hard plates and a plurality of elastic plates of a rubber-like material, and a hollow extending through the central portion of this laminate. The relation between a perpendicular buckling load PVB and the width W of the hard plates is determined by conducting a critical load test or a shearing test to determine a proper width W of the hard plates with respect to displacement Xo in the shearing direction, a standard surface pressure sigma o in the perpendicular direction, an outer diameter Do of the hard plates and the height nRTR of the laminate, whereby a laminated rubber support having a high stability with respect to load variation in the perpendicular direction is designed. A laminated rubber support as an earth-quake-proof support, in which a viscoelastic member or a plastic member is inserted and packed in the hollow mentioned above, comes to have a high stability and a high damping coefficient owing to this designing method.

    10.
    发明专利
    未知

    公开(公告)号：DE69314882T2

    公开(公告)日：1998-03-12

    申请号：DE69314882

    申请日：1993-08-05

    Applicant: SUMITOMO RUBBER IND

    Inventor： MATSUSHITA HIROOMI ,  FUJISAWA KAZUHIRO ,  SASAKI TERUO

    IPC: E01D1/00 ,  E04H9/02 ,  F16F3/093 ,  F16F9/30 ,  F16F15/04 ,  G12B9/08 ,  F16F3/08

    Abstract: A laminated rubber bearing comprising a columnar-shaped viscoelastic body 5, a plurality of viscoelastic members 4, and an external binding body 1 disposed in the periphery of these components. The external binding body 1 is a laminated body consisting of alternating rigid plates 3 and rubber-like elastic plates 2 with rubber-like elastic plates 2 disposed between external peripheral regions of the rigid plates 3. The viwcoelastic members 4 are disposed inside of those rubber-like elastic plates 2 of the external binding body 1 so that the viscoelastic members 4 fill up clearance between the rigid plates 3 inside of respective rubber-like elastic plates 2. A cylindrical cavity 6 opening at both ends thereof and extending through the viscoelastic members 4 and the rigid plates 3. A viscoelastic body 5, an elastic body, or viscous substance having cubage greater than that of the cylindrical cavity 6 is forcedly inserted in the cylindrical cavity 6.

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