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    ACOUSTIC APPARATUS
    3.
    发明申请
    ACOUSTIC APPARATUS 审中-公开

    公开(公告)号：US20180220227A1

    公开(公告)日：2018-08-02

    申请号：US15836053

    申请日：2017-12-08

    申请人： ALPINE ELECTRONICS, INC.

    发明人： Kei Tanabe

    IPC分类号： H04R1/28 ,  H04R1/02 ,  H04R9/02

    CPC分类号： H04R7/06 ,  H04R1/025 ,  H04R1/2834 ,  H04R7/02 ,  H04R9/025 ,  H04R31/003 ,  H04R2307/029

    摘要： An acoustic apparatus may include a frame having an annular open portion that opens in an axial direction; a diaphragm supported by being attached to the annular open portion via a flexible edge member so as to be capable of vibrating in the axial direction; and a driving unit connected to the diaphragm at a center portion of the diaphragm, where the driving unit is configured to apply a driving force in the axial direction to the diaphragm. The diaphragm has a rotationally symmetric shape around an axis of the diaphragm when viewed in the axial direction. The diaphragm includes a sheet member having an orientation dispersion structure in which shape-anisotropic fillers are dispersed in a resin with long axes of the fillers oriented in one predetermined direction, and the diaphragm has mechanical characteristics having two-fold rotation symmetry around the axis.

    SPEAKER DEVICE
    4.
    发明申请
    SPEAKER DEVICE 审中-公开

    公开(公告)号：US20170289659A1

    公开(公告)日：2017-10-05

    申请号：US15318656

    申请日：2015-10-28

    申请人： CITYFOREST WORKERS NET CO., LTD.

    发明人： Kinpei Yokohama

    IPC分类号： H04R1/02 ,  H04R7/16 ,  H04R9/06

    CPC分类号： H04R1/025 ,  H04R7/04 ,  H04R7/10 ,  H04R7/12 ,  H04R7/16 ,  H04R9/025 ,  H04R9/06 ,  H04R2307/021 ,  H04R2307/029

    摘要： A speaker device includes a vibration generator, a rod-like member, and a sound generator. The vibration generator vibrates when receiving an electrical signal. The rod-like member has a first longitudinal end fixed to the vibration generator. The sound generator is attached to a part of the rod-like member. The sound generator integrally includes a vibration transmitter which has a fibrous structure and a diaphragm which is a sheet and has a fibrous structure. When a fiber direction is defined as a direction in which fibers of a fibrous structure are oriented, a fiber direction of the vibration transmitter and a fiber direction of the diaphragm intersect with each other.

    SPEAKER VIBRATING MEMBER AND METHOD OF MAKING THE SAME
    6.
    发明申请
    SPEAKER VIBRATING MEMBER AND METHOD OF MAKING THE SAME 审中-公开

    公开(公告)号：US20170251307A1

    公开(公告)日：2017-08-31

    申请号：US15440135

    申请日：2017-02-23

    申请人： Hiroshi OHARA

    发明人： Hiroshi OHARA

    IPC分类号： H04R7/12 ,  H04R31/00

    CPC分类号： H04R7/125 ,  H04R9/043 ,  H04R9/06 ,  H04R31/003 ,  H04R2307/021 ,  H04R2307/025 ,  H04R2307/029

    摘要： The present invention provides a method for making a speaker vibrating member, including: impregnating a fiber cloth with a resin solution for at least one time; removing the fiber cloth from the resin solution, and impregnating the fiber cloth with a water-based rubber solution for at least one time; drying the fiber cloth; forming at least one speaker vibrating member shaped portion on a dried fiber cloth; and cutting the at least one speaker vibrating member shaped portion off from the dried fiber cloth to acquire the speaker vibrating member. In such a way, the fiber cloth may be prevented from sticking with the mold during the formation step due to the protection provided by the release layer. In addition, the speaker vibrating member manufactured by the method has a higher flexibility and a remarkable fatigue resistance; consequently, the sound quality of the speaker may be enhanced.

    LOUDSPEAKER DIAPHRAGM
    7.
    发明申请
    LOUDSPEAKER DIAPHRAGM 审中-公开

    公开(公告)号：US20170183500A1

    公开(公告)日：2017-06-29

    申请号：US15341054

    申请日：2016-11-02

    申请人： Onkyo Corporation

    发明人： Hiroyasu KUMO ,  Yushi ONO

    IPC分类号： C08L97/02 ,  G10K13/00

    CPC分类号： C08L97/02 ,  G10K13/00 ,  H04R7/00 ,  H04R2307/029 ,  C08L1/02

    摘要： A speaker diaphragm in which the Young's modulus, internal loss (tan δ), airtightness, and various strengths are well balanced is provided. The speaker diaphragm according to the present invention includes wood pulp and cellulose nanofibers, wherein, in one embodiment, the cellulose nanofibers are unoxidized cellulose nanofibers. The content rate of the cellulose nanofibers is one part by weight to 20 parts by weight with respect to 100 parts by weight of the wood pulp, for example.