JPS5921081B2 - Structure of pickup vibration system - Google Patents
Structure of pickup vibration systemInfo
- Publication number
- JPS5921081B2 JPS5921081B2 JP837078A JP837078A JPS5921081B2 JP S5921081 B2 JPS5921081 B2 JP S5921081B2 JP 837078 A JP837078 A JP 837078A JP 837078 A JP837078 A JP 837078A JP S5921081 B2 JPS5921081 B2 JP S5921081B2
- Authority
- JP
- Japan
- Prior art keywords
- cantilever
- vibration system
- holder
- axis
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010248 power generation Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は、レコードプレーヤにおけるピックアップの振
動系の構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a pickup vibration system in a record player.
例えば従来では、第１図に示すように、カンチレバー１
の基端のホルダー２に、マグネット３、４を装着したＭ
Ｍ（ムービングマグネット）形カートリッジ、あるいは
第２図に示すようにホルダ２’にコイル３’、４’を装
着したＭＣ（ムービングコイル）形カートリッジ等があ
るが、いずれの場合もカンチレバー１の中心軸から離れ
た位置で、しかも片側に、マグネットあるいはコイルが
設けられる構造であるために、力ンチレバー廻りの質量
にアンバランスを生じ、高域共振点付近において、クロ
ストーク特性が劣化する。For example, in the past, as shown in FIG.
M with magnets 3 and 4 attached to holder 2 at the base end of
There are M (moving magnet) type cartridges and MC (moving coil) type cartridges in which coils 3' and 4' are attached to a holder 2' as shown in Fig. 2, but in either case, the central axis of the cantilever 1 Since the structure is such that a magnet or coil is provided at a location far away from the power source and on one side, the mass around the force antilever becomes unbalanced, and the crosstalk characteristics deteriorate near the high-frequency resonance point.
本発明は斯る点に鑑みたもので、力ンチレバーの基端に
、バランスウェイトを設けて、力ンチレバー廻りの質量
のバランスを良好にし、前記したような問題点を解決せ
んとするものである。The present invention has been made in view of this point, and aims to solve the above-mentioned problems by providing a balance weight at the base end of the force bench to improve the balance of the mass around the force bench. .
以下、第３図を参照して一実施例を説明すると、第３図
は前方向からカンチレバーを見た図で、９０度間隔のマ
グネット３、４はカンチレバー１の基端において、そこ
に固着されるホルダー２に止着され、そのマグネット３
、４の対角線側、すなわち１８０度ずれた位置には、そ
の力ンチレバー１と直交平面内にあるマグネット３、４
と同一平面内に、バランスウェイト５、６が止着される
。第４図にその断面を示す。７はダンパー、８はピアノ
線、９はサスペンションである。Hereinafter, one embodiment will be described with reference to FIG. 3. FIG. 3 is a view of the cantilever seen from the front, and magnets 3 and 4 spaced apart by 90 degrees are fixed to the base end of the cantilever 1. The magnet 3 is fixed to the holder 2.
, 4, on the diagonal side, that is, at a position shifted by 180 degrees, are magnets 3 and 4 that are in a plane orthogonal to the force bench lever 1.
Balance weights 5 and 6 are fixed in the same plane. Figure 4 shows its cross section. 7 is a damper, 8 is a piano wire, and 9 is a suspension.
このように、バランスウェイト５、６を設けることによ
り、力ンチレバー１を含む振動系の重心を略力ンチレバ
ー１の軸心上にもつていくことができ、力ンチレバー１
は、そのどの方向への廻りに対しても質量のアンバラン
スをなくすることができる。In this way, by providing the balance weights 5 and 6, the center of gravity of the vibration system including the force bench lever 1 can be brought approximately onto the axis of the force bench lever 1, and the force bench lever 1
can eliminate mass imbalance in any direction.
この結果、第５図に示すように、クロストーク量は、高
域共振周波数の付近において、従来の場合よりも少なく
なる。第５図におけるａは従来例で、ｂが本実施例によ
る場合である。なお、以上はＭＭ形カートリッジについ
てのものであるが、マグネット３、４の部分を発電コイ
ルに置き代えたＭＣ形、あるいは鉄片に置き代えたＭＩ
（ムービングアイアン）形の場合も、全く同様に、それ
らコイルあるいは鉄片の対角線側にバランスウェイトを
設ければ良い。また、バランスウェイト５、６の代りに
その中間位置に１個のバランスウェイトを設けても良い
。以上から本発明によれば、力ンチレバーの基端にホル
ダーを固着すると共に、該ホルダーを介して一対の発電
素子を該カンチレバーと直交する平面内の該カンチレバ
一の軸心に関して非対称な位置に取り付け、かつ前記カ
ンチレバ一の軸心に関して前記発電素子とウエイトバラ
ンスするバランスウエイトを前記平面と同一平面内にお
いて前記ホルダーに取付けて振動系の重心を前記カンチ
レバ一の軸心に近ずけているため、高域共振点付近にお
けるクロストーク量が減少し、所期の目的は充分達成さ
れる。As a result, as shown in FIG. 5, the amount of crosstalk becomes smaller in the vicinity of the high resonance frequency than in the conventional case. In FIG. 5, a is a conventional example, and b is a case according to this embodiment. The above is for the MM type cartridge, but the MC type where the magnets 3 and 4 are replaced with generator coils, or the MI type where magnets 3 and 4 are replaced with iron pieces.
In the case of a (moving iron) type, a balance weight may be provided on the diagonal side of the coil or iron piece in exactly the same way. Further, instead of the balance weights 5 and 6, one balance weight may be provided at an intermediate position. As described above, according to the present invention, a holder is fixed to the base end of a force bench lever, and a pair of power generation elements are mounted via the holder at asymmetric positions with respect to the axis of the cantilever in a plane orthogonal to the cantilever. , and a balance weight that balances weight with the power generation element with respect to the axis of the cantilever is attached to the holder in the same plane as the plane, so that the center of gravity of the vibration system is brought closer to the axis of the cantilever, The amount of crosstalk near the high-frequency resonance point is reduced, and the intended purpose is fully achieved.
第１図は従来のＭＭ形の場合の振動系の斜視図、第２図
はＭＣ形の場合の斜視図、第３図は本実施例による振動
系の正面図、第４図は断面図、第５図は特性図である。
５，６・・・・・・バランスウエイト。Fig. 1 is a perspective view of the vibration system for the conventional MM type, Fig. 2 is a perspective view for the MC type, Fig. 3 is a front view of the vibration system according to this embodiment, and Fig. 4 is a cross-sectional view. FIG. 5 is a characteristic diagram. 5,6...Balance weight.
Claims (1)
該ホルダーを介して一対の発電素子を該カンチレバーと
直交する平面内の該カンチレバーの軸心に関して非対称
な位置に取り付け、かつ前記カンチレバーの軸心に関し
て前記発電素子とウエイトバランスするバランスウェイ
トを前記平面と同一平面内において前記ホルダーに取付
けて振動系の重心を前記カンチレバーの軸心に近ずけた
ことを特徴とするピックアップの振動系の構造。1 Attach the holder to the base end of the cantilever and
A pair of power generation elements are mounted via the holder at positions asymmetrical with respect to the axis of the cantilever in a plane orthogonal to the cantilever, and a balance weight that balances weight with the power generation element with respect to the axis of the cantilever is attached to the plane. A structure of a vibration system of a pickup, characterized in that the vibration system is attached to the holder in the same plane, and the center of gravity of the vibration system is brought closer to the axis of the cantilever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP837078A JPS5921081B2 (en) | 1978-01-30 | 1978-01-30 | Structure of pickup vibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP837078A JPS5921081B2 (en) | 1978-01-30 | 1978-01-30 | Structure of pickup vibration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54102102A JPS54102102A (en) | 1979-08-11 |
| JPS5921081B2 true JPS5921081B2 (en) | 1984-05-17 |
Family
ID=11691337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP837078A Expired JPS5921081B2 (en) | 1978-01-30 | 1978-01-30 | Structure of pickup vibration system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5921081B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63120848A (en) * | 1986-11-07 | 1988-05-25 | Nippon Denso Co Ltd | Fuel feed control device for internal combustion engine |
| JPH02107739U (en) * | 1989-02-16 | 1990-08-28 | ||
| JPH0459368U (en) * | 1990-09-27 | 1992-05-21 |
-
1978
- 1978-01-30 JP JP837078A patent/JPS5921081B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63120848A (en) * | 1986-11-07 | 1988-05-25 | Nippon Denso Co Ltd | Fuel feed control device for internal combustion engine |
| JPH02107739U (en) * | 1989-02-16 | 1990-08-28 | ||
| JPH0459368U (en) * | 1990-09-27 | 1992-05-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54102102A (en) | 1979-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08306142A (en) | Disk unit | |
| US3480809A (en) | Tuning fork resonator with reed-mode damping and reed signal cancellation | |
| US4835643A (en) | Disk drive head actuator coil | |
| JPS5921081B2 (en) | Structure of pickup vibration system | |
| US3983335A (en) | Stylus assembly and transducer using same | |
| US2016622A (en) | Moving coil electromechanical device | |
| JPS6122366B2 (en) | ||
| US4327433A (en) | Magnetic phono cartridge | |
| US3954273A (en) | Phonograph pickup cartridge | |
| JPS5448503A (en) | Moving coil type pickup cartridge | |
| US2798972A (en) | Vibration pickup | |
| JPS60156584A (en) | 2-axis vibration generator | |
| US1780378A (en) | Electric pick-up for gramophone or other sound records | |
| JPS59178631A (en) | Optical pickup | |
| JPS5819919Y2 (en) | Pickup Cartridge | |
| US4238646A (en) | Pickup cartridge for reproducing signals recorded on a 45--45 stereophonic record disk | |
| JPS5915189Y2 (en) | Magnetic circuit for MC type cartridge | |
| JPS6118731B2 (en) | ||
| JPH0770083B2 (en) | Vibration mirror device | |
| JPS5915188Y2 (en) | Magnetic circuit for MC type cartridge | |
| JPH021997Y2 (en) | ||
| JP3085898B2 (en) | Objective lens holder | |
| JPS6042680B2 (en) | Pickup Cartridge | |
| JPS6022713Y2 (en) | Pickup Cartridge | |
| US4317191A (en) | Moving coil pickup cartridge |