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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a conventional high-amplitude speaker for
bass using one ladder, and FIG. 2 shows one of the loudspeakers using a plurality of ladders
according to the present invention. An example is shown. In the figure, 1 is corn paper, 2 is a
forceps, 3 is a vibrator, 4 is a magnet, 5 and 5 are connecting rods, 6 and 6 are driving rods, 7
and 8. −9はピボットである。 In the drawings, the same reference numerals indicate the same
or corresponding parts. Figure 1 Figure 2 Figure 57-
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement
of a speaker in which a large amplitude is obtained by transmitting the movement of the drive
section by means of forceps to the cone paper. is there. Conventionally, for example, a speaker
using a ladder for a speaker requiring a large amplitude such as a bass speaker has been put to
practical use. As shown in FIG. 1, this is a drive weir (6) provided on the drive unit (41 vibrator
(3)) and a connection weir (5) provided on the center of the cone paper (1). Place the forceps (2)
between the two and support both ends with the same axis f81 f8 +, and provide all the fulcrums
(7) at the positions where the forceps + 21 is divided appropriately, the shaft fulcrum ( 9) and the
ratio of the length between the fulcrum (7) and the fulcrum (7) and the shaft fulcrum (8) to
expand the piston movement of the vibrator (3) to a predetermined size and transmit it to the
cone paper (11 It is configured to be n. In such a conventional one, a relatively large value is
required for the movement of the ladder (2) in order to be driven by the cone (i 11 @ 1) ladder
(2; It increases and it becomes difficult to operate at frequencies above a certain level. (2)
Further, the force applied to the fulcrum (7) is also large because there is only one forceps (2).
Furthermore, when compared with a general cone-shaped speaker, the drive part (4) is located
away from the axis of the cone paper (1), giving a strange feeling to the shape and causing
inconveniences in attachment, handling, etc. It was This invention was made in view of such a
point, and it is possible to move cone paper smoothly with sufficient amplitude to a high
frequency region, and the shape is also the same as the conventional cone-shaped speaker. To
provide a cone speaker. A detailed description of this invention will be given below with
reference to FIG. The same points as those of the conventional one, but the shape is the distance
11 between point (b) and the distance between point (a) and point (C). Ratio 1m / z, the ratio L □
of the distance L □ between the point (a distance IILLi of the q> and the point) and the point (r)
Make it equal to 4 □ and smaller. In addition, the number of ladders (2) is reduced to one (1)-3
along with miniaturization. The connection between the cone paper and the drive is shown in
FIG. 1, while in the case of f, a connection rod (5) attached at the center of the cone paper and a
drive rod (6) at the upper center of the drive portion are shown in FIG. In the general cone
speaker at the bottom of the cone paper, move the chopsticks (5) to the part where the voice coil
is attached, and the same number as the number of ladders (2) on the cone paper bottom
circumference. Arrange at equal intervals.
The drive weirs (6) are arranged on the outer periphery of the vibrator (3) at equal intervals as
many as the forceps weir (2). Nail the drive rod (21 and connecting rod (51 and drive rod (6)
Habibot (8) and (9) combined with the nail. The pivots (8) and (9) are used only for the
connection of the forceps (21 and the connecting rod (5), the drive rod (61), so that the pivots (8)
and (9) can move freely up and down The pivot (7) is the supporting axis for the insulator (2),
and the latter (2) is accompanied by a 9 ° magnetic rotation around the pivot (7) i6L41. The
vibrator + 31 fl has a voice coil built in like a normal cone speaker, and performs (4) vertical
movement in proportion to the electric input to the voice coil. However, where X is displacement,
human being amplitude, w is angular frequency, and t is time, since it is fixed to drive rod + 61 fl
and vibrator + 31, n is displacement same as perturbator.杆 (2) give K fortune. This ladder (2) is
supported by the pivot (7) and performs all rotational motions, but the vertical displacement of
the motion at the pivot (8) becomes X'- and lXAstnwt using the above values of Is and 122, and
vibration The amplitude of the child (3) is increased by a factor of 2 / Z, and it will be transmitted
to the connecting rod (5) and also to the end of the cone (1) fixed to it. Here, the reason why a
structure using such a ladder is necessary is as follows. That is, when attempting to reproduce an
extremely low noise such as lO to 20-, the condition given to the speaker is that a large-diameter
cone paper is vibrated with a large amplitude. However, with regard to the large aperture, the
upper limit of the vibration amplitude and the reproduction frequency range is remarkably (5) by
the increase of the weight of the cone paper and the vibration resonance generated on the cone
paper (5). A restriction arises. Therefore, a large amplitude is a back translation. Now, to
reproduce 16- sound and obtain 100 dRO sound pressure at 1 m from the speaker, a speaker
with an aperture of diameter% m requires an amplitude of 1 fJ1.6 cs. In order to realize this
amplitude of 161 without significant distortion, the magnet (4) becomes very large and ^ -valent,
and the structure of the voice coil also becomes an unstable shape of i-length, and the weight
Speakers are very difficult to achieve. For this reason, in the case of obtaining a large amplitude
at low frequency, the method using a ladder has become a superior method. When I think about
the real big boat now, is it? : / 1/98 m, / z = 32 m and 1t become lx'1x-4, and when the
amplitude A is 0.4 scratch, the displacement amplitude of the cone paper is 1.61 is obtained, The
required amplitude is equal to the required amplitude.
In addition, the amplitude of 04 儂 is not a typical one for the 1 / '+ bass cone speaker that is
commonly used. The total length of the forceps (2) is 4.0 m and the force d is 30 (the size of 31
is 30 wounds. The receiving portion circumference C1 has a diameter of about 11 ffi. こ!
Assuming that the aperture of the speaker considered now is 3.8 billion, L will have a driving
point at the fourth place of the cone ridge line, and it will not have a vague structure compared to
a general cone loudspeaker field It is understood. Since this device is configured as described
above, it is possible to obtain a large enough vibration without using a large size ladder as in the
prior art, and the weight of each ladder is reduced 2t Therefore, the reproduction frequency head
range can be wider. In addition, the vibrator, the gyoza, the corn paper, etc. are all axisymmetric,
and the junction with the corn paper is multiple, so the neck of the corn paper! A braking effect
can be obtained against undesired movements such as scalding and creasing. Furthermore, since
the shape itself is not different from that of a general cone speaker by installing a cover or the
like on the ladder part, mounting, "l", (does not cause any inconvenience in handling. 4 · 9 + ·
Yearly reading of drawings (7) 謔 Figure 1 is a large-amplitude speaker for bass using the
conventional single ladder ?? FIG. 2 shows an embodiment of a speaker using a plurality of
insulators according to the present invention. In Igl, fil is corn paper, (212 + forceps, (31
vibrators, (4) tilting magnet, f5 H51 is a drawn knot, +6161 is a driving lever, 171 f8; f91 ti
pivot). In the figures, the same reference numerals are identical or equivalent to each other?
Show. Agent Shino Shino -4 crush (8) Fig. 91 寥 32 Y δ 21! 1I, c4 戚 9826 generation prisoner
W Shin 1----
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