JPH0386692U

JPH0386692U -

Info

Publication number: JPH0386692U
Application number: JP14778689U
Authority: JP
Priority date: 1989-12-22
Filing date: 1989-12-22
Publication date: 1991-09-02

Description

[Brief explanation of drawings]

第１図は本考案装置を座席に組付けた状態を示
す正面図、第２図はそのＡ−Ａ線断面図、第３図
は本考案に係るスピーカを示す断面図、第４図は
連結空間の径を伝達管の径と等しくしないと共に
伝達管内に吸音材を設けていない場合における周
波数の特性を示す表、第５図は連結空間の径を伝
達管の径と等しく設定しないで伝達管内に吸音材
を配した場合における周波数特性を示す表、第６
図は連結空間の径を伝達管の径とほぼ等しく設定
すると共に伝達管内壁に吸音材を配した場合にお
ける周波数特性を示す表である。符号の説明、１……スピーカ、２……伝達管、
３……開口部、４……連結空間、５……身体支持
具、６……頭支持部、７……背中支持部、８……
下半身支持部、９……埋蔵部材、１０……連結部
材。 Fig. 1 is a front view showing the device of the present invention assembled to a seat, Fig. 2 is a sectional view taken along the line A-A, Fig. 3 is a sectional view showing the speaker of the invention, and Fig. 4 is a connection. A table showing the frequency characteristics when the diameter of the space is not equal to the diameter of the transmission pipe and no sound-absorbing material is provided inside the transmission pipe. Table 6 showing frequency characteristics when sound absorbing material is placed on
The figure is a table showing frequency characteristics when the diameter of the connecting space is set approximately equal to the diameter of the transmission pipe and a sound absorbing material is arranged on the inner wall of the transmission pipe. Explanation of symbols, 1...Speaker, 2...Transmission pipe,
3...Opening, 4...Connection space, 5...Body support, 6...Head support, 7...Back support, 8...
Lower body support part, 9... buried member, 10... connecting member.

Claims

[Scope of Claim for Utility Model Registration] (1) A seat, chair, or bed that is composed of a head support part 6 that supports the user's head, a back support part 7 that supports the user's back, and a lower body support part 8 that supports the lower body of the user. A speaker 1 built in the back support part 7 or lower body support part 8 of the body support 5 such as
A built-in speaker device comprising a pipe-shaped transmission tube 2 connected to the head support portion 6, and an opening 3 formed at the tip thereof located in the head support portion 6. (2) The built-in speaker device according to claim 1, wherein a connecting space 4 that connects the speaker 1 and the transmission pipe 2 is set to have a diameter approximately equal to that of the transmission pipe 2. (3) The built-in speaker device according to claim 1 or 2, wherein a sound absorbing material is arranged on the inner wall of the transmission pipe 2.