公开(公告)号：EP1773093A4

公开(公告)日：2007-12-19

申请号：EP05728463

申请日：2005-04-06

Applicant: TOA CORP

Inventor： IWAYAMA KEN

IPC: H04R1/26 ,  H04R1/02 ,  H04R27/00

CPC classification number: H04R1/26 ,  H04R27/00 ,  H04R2201/401

Abstract: A speaker system may be desired to acquire a fixed directivity over a frequency range as wide as possible. However, a speaker system using a horn of a fixed directivity is frequently used in combination with a box speaker having a built-in woofer unit. This system is large-sized. Another desire is to acquire the fixed directivity in a lower frequency. The speaker system (10) is provided with an enclosure (20), a first speaker unit (30) for a low range, and a plurality of second speaker units (31, 32 and 33) for a high range. The enclosure (20) has a front plate unit (21) as a baffle plate and a rear plate unit (22). The length of the rear plate unit (22) along a first direction perpendicular to the longitudinal direction is shorter than that of the front plate unit (21) along the first direction. The first speaker unit (30) and the second speaker units (31, 32 and 33) are mounted on the front plate unit (21). The second speaker units (31, 32 and 33) are juxtaposed along the first direction. The second speaker units (31, 32 and 33) have their diaphragms positioned near the front plate unit (21) in the longitudinal direction.

Abstract translation: 扬声器系统可能需要在尽可能宽的频率范围内获取固定的方向性。 然而，使用具有固定方向性的喇叭的扬声器系统经常与具有内置低音扬声器单元的箱式扬声器组合使用。 这个系统是大型的。 另一个愿望是以较低的频率获得固定的方向性。 扬声器系统10设置有外壳20，用于低音域的第一扬声器单元30以及用于高音域的多个第二扬声器单元31,32和33。 外壳（20）具有作为挡板的前板单元（21）和后板单元（22）。 后板单元（22）沿垂直于纵向方向的第一方向的长度小于前板单元（21）沿第一方向的长度。 第一扬声器单元（30）和第二扬声器单元（31,32和33）安装在前板单元（21）上。 第二扬声器单元（31,32和33）沿着第一方向并置。 第二扬声器单元（31,32和33）的膜片在纵向方向上位于前板单元（21）附近。

公开(公告)号：CA2568189C

公开(公告)日：2016-11-22

申请号：CA2568189

申请日：2005-04-06

Applicant: TOA CORP

Inventor： IWAYAMA KEN

IPC: H04R1/26 ,  H04R1/02 ,  H04R27/00

Abstract: A speaker system includes an enclosure, a first speaker unit for low frequency and a plurality of second speaker units for high frequency. The enclosure includes a front plate portion which is a baffle plate and a rear plate portion. A length of the rear plate portion in a first direction perpendicular to a forward and backward direction is shorter than a length of the front plate portion in the first direction. The first speaker unit and the second speaker units are mounted to the front plate portion. The plurality of second speaker units are arranged in the first direction. Vibration plates of the plurality of second speaker units are located in the vicinity of the front plate portions in the forward and backward direction.

公开(公告)号：CA2568189A1

公开(公告)日：2005-12-08

申请号：CA2568189

申请日：2005-04-06

Applicant: TOA CORP

Inventor： IWAYAMA KEN

IPC: H04R1/26 ,  H04R1/02 ,  H04R27/00

Abstract: In some cases, constant directivity of a speaker system is desirably obtained in a wider frequency range. However, a speaker system using a constant directivity horn is frequently used in combination with a box speaker containing a woofer unit. Such a system becomes large in size. Furthermore, constant directivity is desirably obtained in a lower frequency. A speaker system 10 includes an enclosure 20, a first speaker unit 30 for low frequency and a plurality of second speaker units 31, 32, and 33 for high frequency. The enclosure 20 includes a front plate portion 21 which is a baffle plate and a rear plate portion 23. A length of the rear plate portion 22 in a first direction perpendicular to a forward and backward direction is shorter than a length of the front plate portion 21 in the first direction. The first speaker unit 30 and the second speaker units 31, 32, and 33 are mounted to the front plate portion 21. The plurality of second speaker units 31, 32, and 33 are arranged in the first direction. Vibration plates of the plurality of second speaker units 31, 32, and 33 are located in the vicinity of the front plate portions 21 in the forward and backward direction.

公开(公告)号：AU2003284587A1

公开(公告)日：2004-06-15

申请号：AU2003284587

申请日：2003-11-20

Applicant: TOA CORP

Inventor： IWAYAMA KEN ,  NISHINO TAKASHI

IPC: H04R1/34 ,  H04R1/00

Abstract: A wide dispersion speaker system 1 comprises a cone type speaker unit 2, and a restricting element 10A. The restricting element 10A is provided with a center hole 11 at a center section thereof, and a peripheral hole 12 located outward relative to the center hole 11. The restricting element 10A has an annular sound travel inhibiting portion 19 positioned radially outward relative to the center hole 11 and radially inward relative to the peripheral hole 12. An outer end in a radial direction of the sound travel inhibiting portion 19 is positioned at a substantially middle point between an outer end in the radial direction of the center hole 11 and an outer end in the radial direction of the peripheral hole 12 or positioned radially outward relative to the substantially middle point.