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JPS5081208

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DESCRIPTION JPS5081208
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of the bone arm device, FIG. 2 is a
cross-sectional view of a rod made of a material having a low dielectric constant used in the
present invention, and FIG. FIG. 4 is a cross-sectional view of the case where a lead wire is welded
to the groove of the rod-like body 9, FIG. 4 is a perspective view thereof, and FIG. 5 is a diagram
of the rod-like body shown in FIG. 1 is a cross-sectional view taken along the line A--A of FIG. 1,
FIG. 6 is a cross-sectional view of a conventional example corresponding to FIG. 5, and FIG. 1 bar
rod made of low dielectric constant material 2 groove 3E head [.. .. portion 6 cartridge. Fig. 1-21Fig. 50-81208 (2) Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 O "Fig. 7 K20 K 30 K 50 K 1"! LLa '4z)-22-
DETAILED DESCRIPTION OF THE INVENTION In the present invention, when the lead wire
electrically connected with the cartridge of the head portion is inserted into the tone arm of the
record player, in particular, the distribution (floating) capacity of the lead wire 1u. This is
because the influence on degradation of the channel separation caused is minimized. In FIG. 1
showing a conventionally known four-channel stereo reproducible tone arm device, the inside
(11, part of the tone arm main body 4 in a generally pipe shape is electrically connected with the
cartridge 6 of the head portion 5 The four left and right total lead wires to be connected are
inserted without receiving any restriction, and the left and right hot side lead wires and the
ground side lead wires are arranged adjacent to each other on the inner surface below. It is
customary-this leads to a distributed capacitance between the leads, which causes leakage of the
signal to the other channels when the cartridge picks up the high frequency band (hereinafter
referred to as high frequency) key sign. , Worsen the so-called separation. For example, the bI1
combination of Tisclead 4 channel stereo, this high range 1445 to 50 KHz. In the channel
separation characteristic diagram of FIG. 7, that of the conventional product is shown with a cost
of 11.10. In order to ameliorate the above-mentioned disadvantages of the prior art, as shown in
FIG. 2A, the low dielectric constant material in which four grooves 2 are cut along the
longitudinal direction as shown in FIG. As shown in Fig. 3, use the lead wires 3 by pushing them
01-05-2019
1
into each of the slats 2 as shown in Fig. 4 (2). Into the pipe-shaped tone arm main body 4 as
shown in FIG. 5, and one end of each lead R3 is connected to the cartridge 6 of the head portion
5 as shown in FIG. It will be In the figure, 7 is a needle portion, 8 is a pipe holder, 9 is a rotating
ring, 10 is a pivot, 11 is a base, 12 is a rear weir, 13 (a balance weight. This invention (d, since it
is configured as described above, it is restricted by the groove 2 end cut into the rod 1 made of
the low dielectric constant material, the engagement position id, the mutual contact 3 in the tone
arm main body 4, In addition to preventing unnecessary vibration, it is easy to equalize the iI + d-id interval shown by a in FIG. Can be greatly reduced. Since the rod 1 made of a low dielectric
constant material is still inserted into the tone arm main body 4 to make it solid, resonance due
to the cavity can be eliminated.
As a result, the channel separation characteristics are as shown in the graph of FIG. The same as
that of the conventional song mouth in that it tends to deteriorate, but the high frequency (= (セ ·
separation characteristics can be improved remarkably, the yearnings of its practical effects It is
4, iT7: a brief description of the surface 11 is a side view of the tone arm device, the fan 21 is a
cross-sectional view of a rod made of a low dielectric constant material used in this invention, 1
'3 is a figure Cross section of the case where the lead wire is attached to the skin of the rod-like
body in Fig. 2, Fig. 14 (d in its oblique view, 5 in Fig. 4 shows the rod-like body shown in Fig. 4 in
Fig. 4) 11 is a cross-sectional view taken along line A-AM in the case where the insert is inserted,
FIG. 6 is a cross-sectional view of the conventional example corresponding to FIG. DESCRIPTION
OF SYMBOLS 1. Rod body made of low dielectric constant material, 2 ... groove | channel, 3 ...
lead wire, 4 ... tone arm main body, 5 ... head part, 6 ... cartridge. (4) FIG. 1, FIG. 4, A4913127
'A81 FIG. 34, FIG. 2, FIG. 3, FIG. 3. FIG. 7, FIG. 7, FIG. 5, FIG. 6, FIG. )) 10 to 20 K 30 K S o 1 ′ "1
LL (Hx) utility model registration applicant Nippon Victor Co., Ltd. agent A2 盤 board! '' 8208
Agent Araki-Tomoyuki 11 ") 6, Agent Address Other than the above Address 8-12 15-12 Ginza,
Chuo-ku, Tokyo Name (7128) Patent Attorney-健 住所) Address (the same place) Name (the same
place) 5664) Patent Attorney Tomoyuki Araki 3(543)0036オー、4. ぜも。
01-05-2019
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