Abstract: A speaker system including a speaker device and a cabinet. The cabinet is composed of; a front wall having a substantially rectangular parallelepiped shape and is provided with a speaker device affixed thereto; a rear wall opposing to the front wall; and two pairs of side walls arranged between the front wall and the rear wall. A first duct communicating with the interior space of the cabinet is provided through the side wall of the cabinet. A first opening that makes the interior space of the cabinet communicated with a first opening is provided at an area that encompasses a center portion of the one side wall in the one pair of the side walls having the shorter mutual distance therebetween in the two pairs of the side walls.

Abstract: A speaker system including a speaker device and a cabinet. The cabinet is composed of; a front wall having a substantially rectangular parallelepiped shape and is provided with a speaker device affixed thereto; a rear wall opposing to the front wall; and two pairs of side walls arranged between the front wall and the rear wall. A first duct communicating with the interior space of the cabinet is provided through the side wall of the cabinet. A first opening that makes the interior space of the cabinet communicated with a first opening is provided at an area that encompasses a center portion of the one side wall in the one pair of the side walls having the shorter mutual distance therebetween in the two pairs of the side walls.

Abstract: This invention provides a speaker apparatus that outputs sound having smooth frequency characteristics. To solve the inconvenience with the prior art, this invention is a speaker apparatus comprising a diaphragm and a cylindrical-shaped coil bobbin, and not comprising a center cap that covers the coil bobbin, and where the diaphragm is located such that it rests on the coil bobbin, and the coil bobbin and diaphragm are located such that sound from the coil bobbin and diaphragm is not reflected.

Abstract: This invention provides a speaker apparatus that outputs sound having smooth frequency characteristics. To solve the inconvenience with the prior art, this invention is a speaker apparatus comprising a diaphragm and a cylindrical-shaped coil bobbin, and not comprising a center cap that covers the coil bobbin, and where the diaphragm is located such that it rests on the coil bobbin, and the coil bobbin and diaphragm are located such that sound from the coil bobbin and diaphragm is not reflected.

Abstract: There is disclosed a securely fitting binding band in which production thereof is easy with low cost. The binding band comprises a tightening piece and a pair of attaching pieces extending from an end portion of the tightening piece. A gap is formed between the pair of attaching pieces in which the tightening piece can be inserted. The tightening piece and attaching pieces are formed integrally by punching out a fiber surface fastener material in which a mixture of male engaging elements and female engaging elements exist on the same surface thereof.

Abstract: The present invention provides a belt connecting device which can be applied to various uses, has an excellent design property, and can be safely and easily operated even by elderly people and infants. The belt connecting device comprises a belt connecting member fixed to one portion of an article and a belt including one end portion fixed to another portion of the article. A female surface fastener is sewn on the other end portion of the belt to constitute an engaging portion to be engaged with the belt connecting member. The belt connecting member has at one end thereof an inserting hole through and to which the portion of the article is inserted and fixed, at the other end an engaged portion of a male surface fastener and with which the engaging portion of the belt detachably engages, and between the inserting hole and the engaged portion a belt threading portion comprising an elongated hole which is slightly longer than a width of the belt.

Abstract: In manufacturing a continuous surface fastener tape on an injection molding machine, a male engaging portion is injection molded on one surface of a continuous substrate sheet of thermoplastic resin at one longitudinal margin, and an adhesive agent is applied to the other surface of the substrate sheet at the other longitudinal margin to form an adhesive layer. The surface fastener tape is stored in superposed form, such as in roll or in stack, and can be out into individual surface fastener pieces for use as it is demanded. In production, molten resin is continuously injected to the die wheel from an injection nozzle to mold the continuous surface fastener tape, and the adhesive layer is formed on the surface fastener tape using an adhesive-agent applicator.

Abstract: A cylindrical frame is mounted in a cabinet and a magnetic circuit is provided at an end of the frame. A diaphragm having a peripheral free edge is connected to a coil bobbin and a cylindrical ring is secured to the free end edge and disposed in a cylindrical supporting portion of the frame. An annular sealing member is secured to the cylindrical ring so that an outside peripheral wall thereof is slidably contacted with an inside wall of the cylindrical supporting portion of the frame.

Abstract: A loudspeaker has a first diaphragm having a domed shape, a second diaphragm formed on a periphery of the first diaphragm, and a voice coil provided at a juncture of the first and second diaphragms. The second diaphragm is designed such that a dip frequency by shape effect thereof is positioned at a frequency higher than a high limit frequency of the first diaphragm.