Patent Translate Powered by EPO and Google Notice This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate, complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or financial decisions, should not be based on machine-translation output. DESCRIPTION JPS49103802 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and FIG. 2 are vertical side views showing an embodiment of the present invention. In the figure, 1 ························································································································································································ E ······································································································································································································· ·························· 6 DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a moving iron type pino cup assemblage, which comprises a vibrating body provided vibratably in a holder of an exchange needle assembly and a rear end of the holder. A wire is connected between the magnetic member and the vibrator to prevent the vibrator from being pulled forward when the stylus follows the groove of the recording board, and the position of the fulcrum for driving the vibrator is made constant, and the vibrator is also made. To reduce the mass of to improve the frequency characteristics in the high frequency band. Conventionally, it is known that the vibrator is pulled forward as the stylus follows the groove of the recording board ((A structure for supporting the vibrator by a thin piano wire or the like to prevent the occurrence of distortion due to it is well known. This invention relates to a new and useful structure adopting the structure of 1 in the moving iron type Pino Noop Car Torino 2. The invention will now be described with reference to the drawings. FIG. 1 shows the main part of one embodiment of the present invention, (1) '(2) being a cantilever, having a stylus (2) at its tip and having a tubular armature (3) fitted at its rear end The vibrating body (4) is configured. The vibrator (4) is vibratably held in the holder (6) by the damper (5). A magnetic member (7) is fitted to the rear end of the holder (6) slightly apart from the rear end of the arma chair (3). In the vicinity of the vibration center of the vibrating body (4), an @ amount plug (8) made of aluminum or the like is fixed, and a wire (lO) fixed at one end to the plug (8) moves the vibrating body (4) backward. The other end of the wire (lO) is fixed to the rear end face of the magnetic member (10) through a through hole (9) which is swung around the central axis of the magnetic member (7) and pulled 01-05-2019 1 out for pulling. . The above is the configuration of the replacement needle assembly. On the other hand, an electromagnetic conversion means including a pole piece (11), a coil (12) wound on the pole piece (ll), and a magnet (13) are internally contained in the cartridge, and the cartridge body is replaced with an exchange needle When the assembly is inserted, the armature (3) faces the pole piece (11), and the rear end surface of the @ property member (7) and the (3) front surface of the magnet (13) come into close contact with each other. 3) is magnetized with the magnetic member (7) as a yoke. A magnetic circuit is formed. The flux passing through the magnetic circuit is changed by the vibration of the vibrator (4) with the connection point 0 of the wire (lO) on the rear end face of the prada (8) as a fulcrum to produce an output in the coil (12). FIG. 2 shows another embodiment of this invention. The replacement needle assembly is the same as that shown in FIG. 1, but the shape and arrangement of the pole piece (21), coil (22) and magnet (23) of one main body are different. The rear end face of the holder (6) is in close contact with the lower end face of the magnet (23), and has a feature that the front and rear dimensions can be made shorter than those shown in FIG. Since this device is configured as described above, the vibrator (4) can be driven-"the fulcrum O can always keep a constant distance from the magnetic member (7) and the magnet (13), and the vibrator can be used during record reproduction. (4) The drawing motion in the direction of movement of the record board, the armature (3) is not attracted by the magnetic force of the magnet (13), and the shooting movement around the stable stationary fulcrum 0 (4) Since (4) is driven, not only reproduction with little distortion is possible, but also the magnetic flux for magnetizing the armature (3) becomes constant, and a stable and efficient output voltage can be obtained. In addition to that, by making the armature (3) tubular, the mass of the vibrating body (4) can be reduced, so the moment of inertia of the vibrating body (4) decreases and the high frequency characteristics are favorably can do. 01-05-2019 2
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