Abstract: An electroacoustic transducer has a magnetic circuit, a frame combined with the magnetic circuit, a diaphragm combined with a periphery of the frame, a voice coil, a terminal, and a holder covering the frame. The voice coil is combined with the diaphragm and a part of the voice coil is arranged in a magnetic gap of the magnetic circuit. The terminal, made of a metal plate having spring property and electric conductivity, electrically connects an outside circuit and the voice coil utilizing spring pressure generated when the metal plate is bent. The holder forms a stopper for restricting a bend of the metal plate forming the terminal to within a reversible limit of a metallic material.

Abstract: A vehicle seat of the invention has an upper movable member (10) supporting a headrest (3), a lower movable member (30) provided inside a backrest, and a coupling mechanism for coupling the upper movable member and the lower movable member. The coupling mechanism includes an upper link mechanism (15) positioned in an upper part of a side frame (40) and coupled to the upper movable member, a lower link mechanism (32) positioned in a lower part of the side frame and coupled to the lower movable member, and a rod (27) extending along the side frame and coupling the upper link mechanism and the lower link mechanism. The upper link mechanism amplifies a backward moving amount of the lower movable member, and moves the headrest forward.

Abstract: A vehicle seat is provided comprising a seat back frame having right and left side frames, a headrest for supporting a head of a seat occupant, and a back-and-forth movable body provided inside a backrest that is positioned at a rear of the seat occupant, wherein a backward movement of the back-and-forth movable body forwardly moves the headrest to support the head of the seat occupant. The back-and-forth movable body is attached to each side frame through a link member and is provided with a backward protrusion protruding backward, and the backward protrusion extends laterally.

Abstract: A vehicle seat is provided comprising a seat back frame having right and left side frames, a headrest for supporting a head of a seat occupant, and a back-and-forth movable body provided inside a backrest that is positioned at a rear of the seat occupant, wherein a backward movement of the back-and-forth movable body forwardly moves the headrest to support the head of the seat occupant. The back-and-forth movable body is attached to each side frame through a link member and is provided with a backward protrusion protruding backward, and the backward protrusion extends laterally.

Abstract: A vehicle seat is provided comprising a seat back frame having right and left side frames, a headrest for supporting a head of a seat occupant, and a back-and-forth movable body provided inside a backrest that is positioned at a rear of the seat occupant, wherein a backward movement of the back-and-forth movable body forwardly moves the headrest to support the head of the seat occupant. The back-and-forth movable body is attached to each side frame through a link member and is provided with a backward protrusion protruding backward, and the backward protrusion extends laterally.

Abstract: A circuit element comprises a wiring board; the wiring board comprises a substrate and a wiring formed on the substrate, and a lid joined on the substrate containing a part of the wiring with a binder and making a sealed space above the substrate, wherein if a spot of the wiring joined with the lid by a binder is a spot of junction, a flank of both flanks of the wiring comprise bends in the spot of junction.

Abstract: An electrodynamic electroacoustic transducer comprises: a first magnetic pole; a second magnetic pole that forms a magnetic gap between itself and the first magnetic pole and is arranged in a space excluding spaces in upper and lower face directions of the first magnetic pole; a yoke; a diaphragm; and a voice coil. The yoke magnetically couples one magnetic pole face of the first magnetic pole with one magnetic pole face of the second magnetic pole so as to support them. The diaphragm is arranged in a space in an upper face direction of the first magnetic pole and in a space in a lower face direction of the second magnetic pole, while its outer periphery is supported by the yoke. The voice coil is arranged in the magnetic gap and adhered to the diaphragm. At least one of the first magnetic pole part and the second magnetic pole part includes a magnet.

Abstract: An edge (29) for supporting a diaphragm assembly (100) with respect to a frame (26) is bonded to the frame (26) along the outer periphery thereof and joined to a diaphragm (27) in a position more peripherally inward than a voice coil (28) along the inner periphery thereof. The edge (29) partly overlaps diaphragm (27). This structure allows downsizing of the speaker, without reducing the sizes of a permanent magnet (21) and the edge (29).

Abstract: A loudspeaker includes a diaphragm, a voice coil fixed to the diaphragm, a first magnet having a first pole surface facing an inner side of the voice coil, a second magnet located inside the inner side of the voice coil, and a first magnetic fluid provided between the first pole surface of the first magnet and the voice coil. The first magnet has the first pole surface facing the inner side of the voice coil. The second magnet has a second pole surface located inside the inner side of the voice coil such that a magnetic flux passing through the first pole surface of the first magnet crosses the voice coil in a direction perpendicular to the voice coil and a vibration direction. The first magnetic fluid contacts the first pole surface and the voice coil. The loudspeaker has a small thickness but can produce a high audio output, while preventing rolling.

Abstract: In a loudspeaker, three magnets are disposed to provide magnetic gaps therebetween and a voice coil is fit therein. The magnets disposed at both sides are magnetized so that their opposing poles exhibit the same magnetic polarity. The magnet in the middle has its magnetic poles in the direction perpendicular to the line connecting the poles of the side magnets. The side magnets are fixed to a plate made of non-magnetic material. Those magnetic poles of the side magnets and the middle magnet not facing the magnetic gaps are magnetically coupled by a magnetic member.

Abstract: A voice coil wound to have a loop having an inner side is fixed to a diaphragm vibrating in a vibration direction. A first magnet having a first pole surface is fixed to an upper case. A second magnet having a second pole surface is fixed to a lower case. A first magnetic fluid is attached to the first pole surface of the first magnet after fixing the first magnet to the upper case. The diaphragm is fixed to the upper case after fixing the voice coil to the diaphragm and after attaching the first magnetic fluid to the first pole surface of the first magnet, such that the first pole surface of the first magnet faces the inner side of the voice coil and that the first magnetic fluid is provided between the first pole surface of the first magnet and the voice coil and contacts the first pole surface and the voice coil.

Abstract: According to the present invention, there is provided a speaker for use in audio/video apparatuses and a small-sized speaker device capable of realizing preferable reproduction a bass sounds. In order to attain this, in the present invention, a pressure adjusting body is coupled to a portion of a magnetic circuit or a frame, which is a component of a speaker unit, to constitute the speaker unit. The speaker unit is mounted to a small-sized cabinet to constitute a speaker device, which enables realization of preferable reproduction of bass sounds.

Abstract: A vehicle seat of the invention includes: a rectangular-shaped seat back frame (5) having a pair of side frames (6); a plurality of seat springs (34A, 34B) disposed between the side frames; a single plate-shaped flexible cushion plate (31) attached to the seat springs; a seat cushion (9) provided on the front side of the cushion plate; link mechanisms (15, 35) provided near the side frames; and a headrest (4) coupled to the link mechanisms (15). Both ends of the seat spring (34B) are coupled to the link mechanisms. When the seat spring (34B) is moved rearward, the headrest is moved forward. Both sides of each of the remaining seat springs (34A) are mounted to the side frames.

Abstract: A speaker comprising a first rod magnet having a longitudinal direction, a second rod magnet having a longitudinal direction parallel with the longitudinal direction of the first rod magnet, a third rod magnet forming a second magnetic gap between it and the first rod magnet, a diaphragm vibrating in the vibrating direction, a housing for storing the first rod magnet, the second rod magnet, the third rod magnet and the diaphragm, and voice coils bonded to the diaphragm and arranged in first and second magnetic gaps. The second rod magnet has a longitudinal direction parallel with the longitudinal direction of the first rod magnet, and has the opposite end faces in the longitudinal direction. The third rod magnet has a longitudinal direction parallel with the longitudinal direction of the first rod magnet, and has the opposite end faces in the longitudinal direction. The diaphragm is located between the first and second rod magnets and between the first and third rod magnets.

Abstract: An electrostatic micro switch includes a fixed electrode disposed on a fixed substrate; a movable substrate elastically supported by the fixed substrate, the movable substrate including a movable electrode facing the fixed electrode. The movable substrate includes a semiconductor including a plurality of regions having different values of resistivity and a region of high resistivity is disposed near the movable electrode.

Abstract: In a loudspeaker, three magnets are disposed with magnetic gaps formed between them for placing therein a voice coil. The magnets disposed at two sides are so magnetized that the confronting poles have the same polarity. The magnet in the center has its magnetic poles in a direction perpendicular to a direction connecting the poles of the magnets at two sides. A diaphragm has an aperture formed in a position confronting the center magnet. Also provided is a magnetic fluid kept mediating between the sides of the center magnet facing the magnetic gaps and the voice coil.

Abstract: Attachment members including an elongate member molded from at least one elastomer and a rigid or hard fixing element arranged at one or both ends of the elongate member, and methods for manufacturing such attachment members. The fixing element may be molded in advance and thereafter firmly coupled to the elastomeric elongate member, which has also been molded in an appropriate manner.

Abstract: A backrest frame 5 is provided with a cushion plate 31 of one substantially square plate form positioned behind the waist from the upper part of the back of a vehicle seat occupant, movably back and forth by way of a plurality of upper and lower parallel seat springs, one end of either one of a pair of right and left seat springs 34B of the plurality of upper and lower parallel seat springs is connected to a pair of lower link mechanisms 35 provided rotatably on the backrest frame 5, and a rear end collision sensor 40 is formed by the cushion plate 31 between the seat springs 34B for moving a headrest 4 forward, and a coupling part 39 of the other end of the seat spring 34B is directly attached to the lower link mechanism 35.

Abstract: When a pressure receiving plate provided at a seat back moves to a rear side of a vehicle body when a vehicle is collided from behind, a Bowden cable transmits movement of the pressure receiving plate to a headrest ascending mechanism as a tensile load, thereby quickly ascending a headrest to reliably hold a head of an occupant. The Bowden cable transmits only the tensile load, and hence the Bowden cable is not buckled. Reduction in weight is made possible as compared with the case using a rod for transmitting a compression load. Since the Bowden cable is light, it is not required to unreasonably place the pressure receiving plate at a position near the headrest ascending mechanism for reduction in weight, and hence the pressure receiving plate can be placed at the optimal position where a sufficient driving force is obtained at the time of collision. Thus, a headrest is ascended with favorable responsiveness upon a rear-end collision of a vehicle while using a thin transmission member with low rigidity.

Abstract: A vehicle seat of the invention has an upper movable member (10) supporting a headrest (3), a lower movable member (30) provided inside a backrest, and a coupling mechanism for coupling the upper movable member and the lower movable member. The coupling mechanism includes an upper link mechanism (15) positioned in an upper part of a side frame (40) and coupled to the upper movable member, a lower link mechanism (32) positioned in a lower part of the side frame and coupled to the lower movable member, and a rod (27) extending along the side frame and coupling the upper link mechanism and the lower link mechanism. The upper link mechanism amplifies a backward moving amount of the lower movable member, and moves the headrest forward.