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JPS51104303

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DESCRIPTION JPS51104303
Chief of Patent Office-Name of the invention-Name of the invention-Patent office of Japan-Patent
Office 0: Japanese Patent Application Laid-Open No. 51-104 3030 (1976) 9.16 Japanese Patent
Application No. 5o-2'3b "'72 [phase] Application date Shouka, (197) 3.7). Name of the invention t
name of the invention t name of the invention pick-up cartridge
Pickup cartridge (1) 1 light 1 fldt (1) (5) tB application examination request 1 (2) drawing 1 (3)
application duplicate 1 (4) 'proxy 1 50028672
6. Detailed description of the invention The present invention relates to a pickup cartridge, in
which a pin portion is attached to a vibrator including a needle, a cantilever, a bar and the like
which is configured to be removable with respect to a pickup cartridge body to which a
mechanical-electrical conversion element is attached. It is an object of the present invention to
provide a pickup cartridge which is provided and configured to transmit the vibration of a
vibrating body to the conversion element by the bin portion. An embodiment of the pickup
cartridge according to the present invention will be described with reference to the drawings and
the following. FIG. 1 shows 15N of the pickup cartridge according to the present invention. The
lower surface perspective view in the state which removed the pickup vibration system housing ¦
casing of the Example from the pickup cartridge main body is shown. In the figure, reference
numeral 1 denotes a pickup car IJ flange main body, to which a mechanical-electrical conversion
element including a pair of piezoelectric elements 2a and 2b and the like is fixed at a
predetermined position. Reference numeral 3 denotes a housing for holding a vibrating body,
which holds a vibrating body consisting of the reproducing needle 4 and the cantilever 5 at a
predetermined position thereof, and is detachable from the main body 1 as described later. Now,
when the case 3 is attached to the main body 1, first, the lower portion of the case 3 (fX, the
lower portion is in the mode shown in FIG. 1 and is actually an earth portion). The embodiment
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shown in FIG. 1 will be described below. 1) A first guide plate 6 integrally formed at a
predetermined location is formed at a predetermined location on the front portion (left side in
FIG. 1) of the main body 1 in a stepped space portion 7 by the step 8 While being guided and
inserted, and being integrally formed at a predetermined location at the upper part of the
housing 3, a guide plate 2 of @ 2 is formed at the predetermined location at the upper part of the
main body 1, and inserted into a recess% 10 EndPage: 1 W, 7 'n-Insert the predetermined portion
of the front part of the main unit 1 into the space portion 11 of the housing 6 and integrally at
the predetermined position near the lower portion of the guide plate 9 of the housing. A round
rod-like projection 12 which is formed is inserted into a small hole 15 which is formed at a
predetermined location near the recess of the main body 1 and a projecting portion 14 which is
integrally formed at a predetermined front portion of the main unit 1 Press-fit between a pair of
arms of the holding metal fitting 15 which is fixed at a predetermined position at the back of the
space 11 of the body 6 Click to engage. Thus, the housing 6 is attached to the main body 1. On
the other hand, when the housing 3 is to be removed from the main body 1, the projecting
portion 14 of the main body 1 may be separated from the fitting 15 of the housing 3 to separate
the housing 3 from the main body 1. Next, FIG. 2 (AIIBI shows an enlarged side view of the main
part of the pickup cartridge of the present invention and an exploded perspective view thereof,
respectively. In each figure, the same reference numerals are given to the same components as
those shown in FIG.
The cantilever 5 having the reproducing needle 4 at its tip is fixed at its rear end to the central
part of the square first support member 16 in a front view. The support member 16 is integrally
formed with a pair of operation bins 17a and 17b at predetermined positions in the vicinity of
the rear face portion, and fixed at predetermined positions in the lower portion of the rear
surface thereof. The housing 30 is fixed to a predetermined place of the housing 30. The
positional relationship of the cantilever 5, the actuation fins 17a and j7b and the damper
members 18a and 18b with respect to the support member 16 is, as shown in FIG. 1, the
actuation vias 17a and 171) and the damper members 18a and 18b. A positional relationship is
provided on the same circumference centering on the flange 5 and at a distance h45-A5 from the
center line P passing through the cantilever 5. A second support member 19 is made of, for
example, a material having an appropriate elasticity of a rubber force, a support portion 21
having a through hole 20 and a pair of arms having circular holes 22a and 22b at tip ends. It has
23a and 21 and is formed in a substantially V shape. The supporting member 19 supports the
cantilever 5 inserted into the through hole 20 of the supporting portion 21 so that the cantilever
5 substantially divides the angle f2 of the arms 25a and 23b in plan view, and the arm portion It
is fixed to a predetermined position of the housing 3 in mounting bins 24a and 21'b (24b is not
shown) via 2 buttons and 2xb circular holes 22a and 22bf. Then, when the housing 3 is attached
to the main body 1 as described above, the operation bins 17a and 17b abut substantially in
contact with A in the front paths of the respective piezoelectric elements 2a and 2b. The
piezoelectric elements 2a and 2b are fixed at predetermined positions on the main body 1 via
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dampers 75a and 2511 made of comb fixed at the center of the rear surface respectively, and the
cantilever 5 is supported as described above. Element. While being supported by the 19 arm
portions 23a and 23b in a uniform manner, the damper members 18a and 13b having a
positional relationship fi as shown in FIG. The damping effect on unnecessary vibration or the
like of the cantilever 5 etc. is extremely good. Also, as described above, the cans 1 to 5 and the
operating bottles 17a. The positional relationship between the 17'b and the damper members
18a and 1Bb in the support member 16 is as shown in FIG. # G3. The 45-45 groove vibration is
channel separation, channel B, Vine. Here, as described above, in the front path of the elements
2a and 2b under the pressure of 1), the operating forces y17a and 17b are transmitted to the
piezoelectric elements 2a and 2b. Because it is configured to be in point contact with the mobile
station, it can transmit the maneuverability well.
In addition, in place of ± ME 'piezoelectric elements 2a and 2b, for example, a magnet or a coil?
You may use. As described above, the pickup cartridge which is not invented has a configuration
in which the vibrator including the needle tip, the cantilever, etc. is removably attached to the
pickup cartridge main body having the mechanical-electrical conversion element. i ['! MachineElectric Element Element A structure with an operating bottle that contacts in a substantially
point-contacting manner. A very simple structure with an extremely simple grave, no matter what
the mechanical-electric transducer element is. The vibrator can be removably attached to the
pickup cartridge body to which the element is attached, and the mechanical vibration of the
regenerating needle can be transmitted to the machine-11 gas-to-air changer with high fidelity.
There is a misery. EndPage: 2
4, a brief description of the drawing #! FIG. 1 is a bottom perspective view of the pick-up
cartridge-ridge main body with the vibrator housing of an embodiment of the pick-up cartridge
according to the present invention removed, FIG. 2 fAl, (Bl is an enlarged side view of the main
part thereof FIG. 3 is an enlarged back view of an essential part for explaining the positional
relationship of the cantilever, the operation bottle, and the first supporting member of the
damper member. 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · reproduction needle, 5 · · · cantilever, 16 · · · first support member 17a 17b:
operation bottle, 18a, 13b: damper member, second support member 19; Patent applicant's book
1)-part JP-A-51-104303 (3'1 Fig. 1 Fig. 2 (A) Fig. 2 (B) End Page: 3
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