发明名称 |
BASS REFLEX PORT AND TUBULAR BODY |
摘要 |
A bass reflex port having a tubular shape for air flows, wherein an angle of a first inner radial line with respect to a reference plane including a center axis of the bass reflex port differs from an angle of a second inner radial line with respect to the reference plane, the first line being orthogonal to the center axis and passing a first characteristic point on an inner circumference of the bass reflex port in a first transverse cross section perpendicular to the center axis, the second line being orthogonal to the center axis and passing a second characteristic point corresponding to the first characteristic point and located on the inner circumference in a second transverse cross section perpendicular to the center axis, the first transverse cross section and the second transverse cross section differing form each other in position in a direction of extension of the center axis. |
申请公布号 |
US2014262598(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
US201414209656 |
申请日期 |
2014.03.13 |
申请人 |
Yamaha Corporation |
发明人 |
MIKI Akira;ONITSUKA Hirofumi |
分类号 |
H04R1/28 |
主分类号 |
H04R1/28 |
代理机构 |
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代理人 |
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主权项 |
1. A bass reflex port which has a tubular shape and through which air flows,
wherein an angle of a first inner radial line with respect to a reference plane that includes a center axis of the bass reflex port differs from an angle of a second inner radial line with respect to the reference plane, the first inner radial line being orthogonal to the center axis and passing a first characteristic point located on an inner circumference of the bass reflex port in a first transverse cross section perpendicular to the center axis, the second inner radial line being orthogonal to the center axis and passing a second characteristic point corresponding to the first characteristic point and located on the inner circumference in a second transverse cross section perpendicular to the center axis, the first transverse cross section and the second transverse cross section differing form each other in position in a direction of extension of the center axis. |
地址 |
Hamamatsu-shi JP |