JPS5820197B2 - MC type pickup cartridge - Google Patents
MC type pickup cartridgeInfo
- Publication number
- JPS5820197B2 JPS5820197B2 JP906479A JP906479A JPS5820197B2 JP S5820197 B2 JPS5820197 B2 JP S5820197B2 JP 906479 A JP906479 A JP 906479A JP 906479 A JP906479 A JP 906479A JP S5820197 B2 JPS5820197 B2 JP S5820197B2
- Authority
- JP
- Japan
- Prior art keywords
- cantilever
- bobbin
- coil
- magnets
- pickup cartridge
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R9/16—Gramophone pick-ups using a stylus; Recorders using a stylus signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
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ムービングコイル
（ＭＣ）型ピックアップカートリッジに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a moving coil (MC) type pickup cartridge for a record player.
そして本発明の目的は、コイルの量産が容易で振動系の
実効質量が少なく、交換針タイプとすることが容易なＭ
Ｃ型ピックアップカートリッジを提供することである。The purpose of the present invention is to easily mass-produce the coil, have a small effective mass of the vibration system, and easily make the coil into a replaceable needle type.
An object of the present invention is to provide a C-type pickup cartridge.
以下、図を参照して本発明の一実施例を説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は振動系の分解図で、カンチレバー１υ基端のホ
ルダ２を非磁性材として、そのホルダ２の外周部に９０
度の角度間隔で切欠部２ａ。Figure 1 is an exploded view of the vibration system.The holder 2 at the base end of the cantilever 1υ is made of a non-magnetic material, and the outer circumference of the holder 2 is
Notches 2a at angular intervals of degrees.
２ｂを形成して、そこにコイル３１，３２０磁性材！７
）ｍ１面Ｈ形状のボビン４１，４□を取り付けるように
したものである。2b and place coils 31 and 320 magnetic material there! 7
) H-shaped bobbin 41, 4□ with m1 surface is attached.
この場合、コイル３１，３□はボビン４０，４□にあら
かじめ機械巻きすることができ、しかも整列巻きができ
るので、同一特性のコイル量産が可能となる。In this case, the coils 31, 3□ can be mechanically wound in advance around the bobbins 40, 4□, and since they can be wound in alignment, mass production of coils with the same characteristics is possible.
ホルダ２への取り付け）ま接着剤等による。Attachment to holder 2) using adhesive, etc.
このコイル３０，３□に磁界を与える励磁回路はマグネ
ットによるが、これは第２図に示すように、同極（Ｎ又
はＳ極）同志を対向させたマグネット５０，５２０間に
ヨーク６を挾むようにして構成する。The excitation circuit that applies a magnetic field to the coils 30, 3□ is based on a magnet, and as shown in FIG. Configure it as follows.
そしてこのヨーク６には、その下端面にクサビ状の切欠
部６ａを形成しておく。A wedge-shaped notch 6a is formed in the lower end surface of the yoke 6.
第３図に以上の構成を組立てた場合の配置関係を示す。FIG. 3 shows the arrangement when the above configuration is assembled.
但し、片チャンネルのみを表わした。カンチレバー１が
静止している場合には、励磁回路のヨーク６は、ホルダ
２のボビン４１ の中心にある。However, only one channel is shown. When the cantilever 1 is stationary, the yoke 6 of the excitation circuit is centered on the bobbin 41 of the holder 2.
７はダンパ、８はカンチレバー１をワイヤによって保持
するホルダである。7 is a damper, and 8 is a holder that holds the cantilever 1 with a wire.
以上において、カンチレバー１が下方に動く場合には、
第４図イに示すようにボビン４１ が傾き、このため励
磁回路からの磁束は、マグネット５１ＯＮ極からボビン
４１ の一方の鍔ａ→巻中心り→他方の鍔Ｃを通ってヨ
ーク６に至り、マグネット５、のＳ極に入るようになる
。In the above, when the cantilever 1 moves downward,
The bobbin 41 is tilted as shown in FIG. It will enter the S pole of magnet 5.
従ってコイル５１には第４図口に示す極性の電圧が誘起
されるようになる。Therefore, a voltage having the polarity shown at the beginning of FIG. 4 is induced in the coil 51.
一方、カンチレバー１が上方に動く場合には、第５図イ
に示すようにボビン４１ が傾き、このため励磁回路か
らの磁束は、他方のマグネット５２ＯＮ極からボビン４
．の他方の鍔Ｃ→巻中心り→一方の鍔ａを通ってヨーク
６に至り、マグネット５□ のＳ極に入るようになる。On the other hand, when the cantilever 1 moves upward, the bobbin 41 tilts as shown in FIG.
．． It reaches the yoke 6 through the other collar C → the center of the winding → one collar a, and enters the S pole of the magnet 5□.
従ってコイル５１には、今度は第５図口に示す極性の電
圧が誘起されるようになる。Therefore, a voltage of the polarity shown at the beginning of FIG. 5 is now induced in the coil 51.
以上において、ホルダ２はアルミニウム等の非磁性体で
も良いが、サスペンションワイヤト一体的に形成したポ
リアミド等の樹脂でも良い。In the above, the holder 2 may be made of a non-magnetic material such as aluminum, but may also be made of a resin such as polyamide formed integrally with the suspension wire.
以上から本発明によれば、コイルはボビンに巻いたもの
をあらかじめ製作しておけば良（、またボビンは通常の
円筒状でも良いので、量産が容易で、コイル巻数を多く
することができ、しかも小型化でき、コスト安となる。From the above, according to the present invention, the coil can be wound around a bobbin and manufactured in advance (also, the bobbin can be a normal cylindrical shape, so mass production is easy and the number of coil turns can be increased. Moreover, it can be made smaller and the cost can be reduced.
またこのようにコイル巻数を多くしかも小型化可能であ
るので、良好な発電効率の割に振動系を軽量化すること
ができる。Furthermore, since the number of turns of the coil can be increased and the size can be reduced, the weight of the vibration system can be reduced while maintaining good power generation efficiency.
また、カンチレバーのレコード盤側にはいかなる構造物
も必要としないので、交換針タイプにすることが可能と
なる。Furthermore, since no structure is required on the record side of the cantilever, it is possible to use an exchangeable needle type.
第１図は振動系の分解斜視図、第２図は励磁回路の分解
斜視図、第３図は振動系と励磁回路の配置関係図、第４
図と第５図は動作説明図である。
１°°°°°°カンチレバー、２・・・・・・ホルダ、
３０，３□・・・・・・コイル、４１，４□・・・・・
・ボビン、５０，５□・・・・・・マグネット、６・・
・・・畑−り・。Figure 1 is an exploded perspective view of the vibration system, Figure 2 is an exploded perspective view of the excitation circuit, Figure 3 is a layout relationship diagram of the vibration system and excitation circuit, and Figure 4 is an exploded perspective view of the vibration system.
This figure and FIG. 5 are operation explanatory diagrams. 1°°°°°°Cantilever, 2...Holder,
30,3□・・・・・・Coil, 41,4□・・・・・・
・Bobbin, 50,5□・・・Magnet, 6・・
... Field.
Claims (1)
ボビンに巻かれたコイルを、その巻心が該カンチレバー
の軸方向に平行になるように取り付け、且つ該ボビンに
近接した位置に、２個のマグネットをその着磁方向がカ
ンチレバーと平行となるように配置させ、該２個のマグ
ネットは同極が対向するように配置され、該マグネット
の対向した側を通る磁束がコイルのボビンの鍔に至ルよ
うにしたことを特徴とする、ＭＣ型ピックアップカート
リッジ。1. A coil wound around a bobbin of a magnetic material having a substantially H-shaped cross section is attached to the base end of the cantilever so that the winding core is parallel to the axial direction of the cantilever, and at a position close to the bobbin, Two magnets are arranged so that their magnetization directions are parallel to the cantilever, and the two magnets are arranged so that the same poles face each other, and the magnetic flux passing through the opposite sides of the magnets is applied to the bobbin of the coil. This is an MC type pickup cartridge that is characterized by the fact that it extends all the way to the brim.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP906479A JPS5820197B2 (en) | 1979-01-31 | 1979-01-31 | MC type pickup cartridge |
| GB8002629A GB2043395B (en) | 1979-01-31 | 1980-01-25 | Moving coil phono cartridge |
| US06/115,315 US4385375A (en) | 1979-01-31 | 1980-01-25 | Moving coil type phono cartridge |
| DE3002899A DE3002899C2 (en) | 1979-01-31 | 1980-01-28 | Pickup system with moving coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP906479A JPS5820197B2 (en) | 1979-01-31 | 1979-01-31 | MC type pickup cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55102997A JPS55102997A (en) | 1980-08-06 |
| JPS5820197B2 true JPS5820197B2 (en) | 1983-04-21 |
Family
ID=11710175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP906479A Expired JPS5820197B2 (en) | 1979-01-31 | 1979-01-31 | MC type pickup cartridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5820197B2 (en) |
-
1979
- 1979-01-31 JP JP906479A patent/JPS5820197B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55102997A (en) | 1980-08-06 |
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