JPS5916497A - Mc type pickup cartridge - Google Patents

Mc type pickup cartridge

Info

Publication number
JPS5916497A
JPS5916497A JP12501182A JP12501182A JPS5916497A JP S5916497 A JPS5916497 A JP S5916497A JP 12501182 A JP12501182 A JP 12501182A JP 12501182 A JP12501182 A JP 12501182A JP S5916497 A JPS5916497 A JP S5916497A
Authority
JP
Japan
Prior art keywords
magnetic circuit
notch
yoke
circuit
fixed
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.)
Pending
Application number
JP12501182A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ichino
博之 市野
Sekio Ishii
石井 世紀男
Osamu Ueda
修 植田
Kenichi Okura
大蔵 健一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP12501182A priority Critical patent/JPS5916497A/en
Publication of JPS5916497A publication Critical patent/JPS5916497A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R9/16Gramophone 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)

Abstract

PURPOSE:To decrease the number of components and to simplify the assembling, by opposing two ring magnets having sectorial notch with each other, arranging the direction of magnetization to be in parallel with a cuntilever shaft and constituting a magnetic circuit. CONSTITUTION:The two ring magnets 11 magnetized in broadwise direction and having sectorial notch with 90 deg. of center angle are arranged by inserting center yoke 12 so that the same poles oppose to each other. A side yoke 13 is provided at both sides of the magnet 11, and when a magnetic circuit 10 is inserted to a hole 8 and fixed, the sectorial notch of the circuit 10 is exposed to the lower side of the hole 8. In fitting a replacement stylus knob, a moving coil 5 fixed to the root of the cuntilever is arranged in close proximity to and opposingly to the notch of the circuit 10.

Description

【発明の詳細な説明】 この発明は、MC型ピックアップカートリッジ(以下M
 Cカートリッジという)の磁気回路に関するものであ
り、その特徴とするところは、厚み方向に着磁され扇形
の切り欠きを有する2つの環状磁石を同極を互に対向さ
ぜ着磁方向がカンチレバー軸と平行に/、「ろように配
置して左右両チャンネル用の磁気回路を構成したことに
より、部品点数が少なく/7「す、両チャンネル品の相
互の位置調整を行ブ工う必卯がン工<両チャンネル間の
組み立てが棲めて簡r)iになった点であるO 従来、第1図に見られる、L5なMCカートリッジが知
られている。
DETAILED DESCRIPTION OF THE INVENTION This invention relates to an MC type pickup cartridge (hereinafter referred to as M
C cartridge), and its characteristics are that two annular magnets magnetized in the thickness direction and having fan-shaped notches are placed with the same polarity facing each other, and the magnetization direction is a cantilever axis. By configuring the magnetic circuits for both the left and right channels by arranging them parallel to each other, the number of parts is reduced. The point is that the assembly between both channels is simplified and the L5 MC cartridge shown in FIG. 1 has been known in the past.

同図は、機械−電気変換機構の片チャンネルを示したも
のであり、厚み方向に着磁さAまた2つのマグネット1
を同極なlLに対向させてセンターヨーク2およびサイ
ドヨーク3とともKE字形に配置した磁気回路に、カン
チレバー4の基端に固定した可動コイル5が対向配置サ
レテいる。
The figure shows one channel of the mechanical-electrical conversion mechanism, with magnets A and two magnets 1 magnetized in the thickness direction.
A movable coil 5 fixed to the base end of the cantilever 4 is disposed opposite to a magnetic circuit arranged in a KE shape with the center yoke 2 and side yokes 3 so as to face the same polarity lL.

磁気回路と可動コイルとは、位置、方向共だ正確に配置
されなければならないから、第2図に示されるように、
両チャンネルの磁気回路をマグネットホルダー6に前も
ってmみ込んだものをカートリッジ本体に組み込むよう
にしてぃたO ところか、各磁気回路をマグネットホルダーに糾み込み
部品相互の位置調整を行なった後接着剤で固定する作業
は、部品点数が多いうえ各)S6品が極めて小さいため
、熟練を要し時間のかかるものであった。
Since the magnetic circuit and the moving coil must be placed accurately in both position and direction, as shown in Figure 2,
The magnetic circuits of both channels were inserted into the magnet holder 6 beforehand, and then assembled into the cartridge body.However, after each magnetic circuit was inserted into the magnet holder and the mutual positions of the parts were adjusted, they were glued together. The work of fixing with adhesive required skill and was time-consuming because there were many parts and each S6 item was extremely small.

この発明の目的は、上記従来装置の欠点を改良ず2〕こ
とてあり、部品点数が少なく調整箇所の少ない組み立て
の簡単なMCカートリッジのイ+j3気回路を得ること
である。
The object of the present invention is to provide an MC cartridge circuit that is easy to assemble and has a small number of parts and few adjustment points, without improving the drawbacks of the conventional device described above.

この発明の実施例について図面を参照しながら説明する
Embodiments of the invention will be described with reference to the drawings.

第3図は、その分解図を示したものであり、−Jノー1
− l)ンジ本体7のフレームに設けた孔8に磁気回路
10か嵌合固定されカバーで覆われて(・ろ。
Figure 3 shows its exploded view, -J No. 1
- l) The magnetic circuit 10 is fitted and fixed into the hole 8 provided in the frame of the engine body 7 and covered with a cover.

磁気回路10は、第4図に示されるように、厚み方向に
着磁され中心角90度の扇形の切り火きを設けた2つの
環状磁石11を、センターヨーり12をはさんで同極が
互に対向するように配置し、その両側に先端かセンター
ヨーク側に折曲する延長部13aを有するザイトヨーク
13を設けたものである。
As shown in FIG. 4, the magnetic circuit 10 consists of two annular magnets 11 that are magnetized in the thickness direction and provided with a fan-shaped cutout with a center angle of 90 degrees, arranged with the same polarity across a center yaw 12. are arranged so as to face each other, and on both sides thereof there is provided a Zite yoke 13 having an extension part 13a bent toward the center yoke side.

センターヨーク12の左右両側に、位置決め片12aが
それぞれ突設され、この位置決め片12aが孔8の両側
壁に設けられた位置決め溝8aに嵌合し、磁気回路の前
後方向および上下方向の位置決めを行なっている。
Positioning pieces 12a are protruded from both left and right sides of the center yoke 12, and these positioning pieces 12a fit into positioning grooves 8a provided on both side walls of the hole 8, thereby positioning the magnetic circuit in the front-rear direction and the up-down direction. I am doing it.

溝8aの上方端はその幅が広くなっていて磁気回路の位
置決め片12aを挿入しやすくなっている。
The upper end of the groove 8a has a wider width to facilitate insertion of the magnetic circuit positioning piece 12a.

磁気回路IOが孔8に嵌合固定されろと、磁気回路10
の扇形の切り欠きの部分が孔8の下側に露出し、交換針
ノブ9を取り付けたとき、カンチレバー基端に固定さね
た2つの可動コイル5が、磁気回路10の切り欠きの部
分に近接して対向配置されるようになっている。
When the magnetic circuit IO is fitted and fixed in the hole 8, the magnetic circuit 10
The fan-shaped notch part is exposed below the hole 8, and when the replacement needle knob 9 is attached, the two movable coils 5 fixed to the base end of the cantilever are exposed to the notch part of the magnetic circuit 10. They are arranged close to each other and facing each other.

第5図は、カンチレバー軸を含み/15−45ステレオ
の各振動方向を向いた平面で切った断面を示したもので
あり、磁束は、センターヨーり12の切り欠きの端面か
ら出て両側のサイドヨーク13の延長部13aの端面に
至り(環状磁石の着磁力向が逆であれば磁束の方向は逆
)可動コイル5は磁束密度の最も高い位置に配置されて
いる。
Figure 5 shows a cross section taken along a plane that includes the cantilever axis and faces each vibration direction of the 15-45 stereo. The movable coil 5 reaches the end face of the extension 13a of the side yoke 13 (if the direction of the magnetizing force of the annular magnet is opposite, the direction of the magnetic flux is opposite), and is disposed at a position where the magnetic flux density is highest.

センターヨーり12およびサイトヨーク13は、高い飽
和磁束密度を有する例えばノく−メンジュールや純鉄に
より作られている。
The center yaw 12 and the site yoke 13 are made of, for example, black mendur or pure iron, which has a high saturation magnetic flux density.

第6図は、他の実施例を示したものであり、環状?in
石11、センターヨークI2およびサイトヨーク13は
、カートリッジ本体7に前後方向に設けられた支持軸1
4に嵌合固定されている0 支持軸14は、第7図の水平断面図に示されるように外
径のわずかに異なる大径部14aおよび小径部141〕
から成り、これに対応して2つの環状磁石11および2
つのサイドヨーク13の内径もわずかに異なっていて、
センターヨーク12が支持軸14の段部に当接して正確
に位置決めされている。
FIG. 6 shows another embodiment, which is annular? in
The stone 11, the center yoke I2, and the sight yoke 13 are attached to a support shaft 1 provided in the front and rear direction of the cartridge body 7.
4, the support shaft 14 has a large diameter portion 14a and a small diameter portion 141 with slightly different outer diameters, as shown in the horizontal cross-sectional view of FIG.
correspondingly two annular magnets 11 and 2.
The inner diameters of the two side yokes 13 are also slightly different,
The center yoke 12 abuts against the stepped portion of the support shaft 14 and is accurately positioned.

以上説明したように、この発明θ)MCカートリッジの
磁気回路は、厚み方向に着磁され扇形の切り欠きを有す
る2つの環状磁石を同極を互に対向させ着磁方向がカン
チレノく一軸と平行になるように配置して左右両チーV
ンネル用の磁気回路を構成したことにより、部品点数が
少なくなり、両チャンネル間の相/iの位置調整を行フ
、Cう必要がないことと相俟って5絹み立てを極めて簡
単に行なうことができろイ、のであイ)。
As explained above, the magnetic circuit of the MC cartridge of the present invention consists of two annular magnets that are magnetized in the thickness direction and have a fan-shaped notch, with the same polarity facing each other, and the direction of magnetization is cantilevered and parallel to one axis. Place it so that both left and right chi V
By configuring the magnetic circuit for the channel, the number of parts is reduced, and together with the fact that there is no need to adjust the position of phase/i between both channels, it is extremely easy to make silk. I can do it, so I can).

なお、環状磁石および各ヨークの形状は」−記実施例に
限られるものではなく、要は、左右チャンネルが一体に
なってい“f’: [JJり欠き0)左右σ)端面が直
交していればどのような形状てもよし・Q
Note that the shapes of the annular magnet and each yoke are not limited to those in the above embodiments; in short, the left and right channels are integrated, and the end faces are orthogonal. Any shape is fine as long as it is Q.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図・・従来知られていZ)M Cカー1− IJノ
・/θ)機械−電気変換機構の一方のチャンイ・ルの側
面図 第2図・・・その両チャンネルの磁気回路の分痙「図第
3図・・・この発明の実施例であるM Cツノ−1−’
)ッジの分解図 第4図 その磁気回路の分解図 第5図・その機械−電気変換機構の一方のチャンネルの
断m1図 第6図・・・他の実施例の磁気回路の分解図第7図・・
・その水平断面図 5・・可動コイル 7・ カートリッジ本体 8・・・孔 8a・位置決め溝 10・・磁気回路 11・・環状磁石 12・・・センターヨーり 12;I・・・位置決め片 1:3・・・サイドヨーク 13a・・・延長部 14・・・支持軸 第1図゛ 第214 ] 第3図
Figure 1: Side view of one channel of the conventionally known Z) MC car 1-IJ/θ) Mechanical-electrical conversion mechanism Figure 2: Magnetic circuits of both channels Convulsions ``Figure 3... MC horn-1-'' which is an embodiment of this invention
Exploded view of the magnetic circuit shown in Fig. 4. Exploded view of the magnetic circuit shown in Fig. 5. Cutaway view of one channel of the mechanical-electrical conversion mechanism. Fig. 6. Exploded view of the magnetic circuit of another embodiment. Figure 7...
・Horizontal sectional view 5 ・・Movable coil 7 ・Cartridge body 8 ・hole 8a ・positioning groove 10 ・magnetic circuit 11 ・annular magnet 12 ・center yaw 12; I ・positioning piece 1: 3...Side yoke 13a...Extension portion 14...Support shaft Fig. 1゛No. 214] Fig. 3

Claims (1)

【特許請求の範囲】[Claims] カフ チ17 ハM FjAの45.−45ステレオノ
各振動方向位置に2つの可動コイルをコイル巻軸かカン
チレバー軸と平行になるように固定した振動系と、厚み
方向に着磁され扇形の切り欠きを有する2つの環状磁石
を同極を互に対向させ着磁方向かカンチレバー軸と平行
になるように配置した磁気回路とから成り、振動系の2
つの可動コイルを磁気回路の扇形の切り欠きに対向配置
したことを特徴とするMC型ピンクアップカートリッジ
Kafuchi17 HaM FjA's 45. -45 stereono A vibration system in which two movable coils are fixed at each vibration direction position parallel to the coil winding axis or cantilever axis, and two annular magnets magnetized in the thickness direction and having fan-shaped notches are the same. It consists of a magnetic circuit with poles facing each other and arranged in the magnetization direction or parallel to the cantilever axis.
An MC-type pink-up cartridge characterized by two moving coils arranged opposite to each other in the fan-shaped notch of the magnetic circuit.
JP12501182A 1982-07-20 1982-07-20 Mc type pickup cartridge Pending JPS5916497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12501182A JPS5916497A (en) 1982-07-20 1982-07-20 Mc type pickup cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12501182A JPS5916497A (en) 1982-07-20 1982-07-20 Mc type pickup cartridge

Publications (1)

Publication Number Publication Date
JPS5916497A true JPS5916497A (en) 1984-01-27

Family

ID=14899648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12501182A Pending JPS5916497A (en) 1982-07-20 1982-07-20 Mc type pickup cartridge

Country Status (1)

Country Link
JP (1) JPS5916497A (en)

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