JPS6235161B2 - - Google Patents
Info
- Publication number
- JPS6235161B2 JPS6235161B2 JP56148652A JP14865281A JPS6235161B2 JP S6235161 B2 JPS6235161 B2 JP S6235161B2 JP 56148652 A JP56148652 A JP 56148652A JP 14865281 A JP14865281 A JP 14865281A JP S6235161 B2 JPS6235161 B2 JP S6235161B2
- Authority
- JP
- Japan
- Prior art keywords
- damper
- vibrator
- protrusion
- center hole
- magnet
- 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
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000003190 viscoelastic substance Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/44—Styli, e.g. sapphire, diamond
- G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
Description
【発明の詳細な説明】
本発明は可動磁石型ピツクアツプカートリツジ
等に使用する振動子保持装置に関し、振動子をリ
ング状ダンパーの中心孔に圧入保持する際に、ダ
ンパーのコンプライアンスに影響を与えることな
く、振動子をダンパー安定に保持するようにした
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibrator holding device used in a movable magnet type pick-up cartridge, etc. When a vibrator is press-fitted and held in a center hole of a ring-shaped damper, the compliance of the damper is not affected. Instead, the vibrator is held stably by the damper.
従来、可動磁石型ピツクアツプカートリツジに
おいて、振動子を保持する場合には、第１図に示
すようなものが多く用いられてきた。 Conventionally, in the case of holding a vibrator in a movable magnet type pick-up cartridge, the type shown in FIG. 1 has often been used.
第１図において、１は針先、２は針先１で検出
された振動を伝達するカンチレバー、３はカンチ
レバーの後端に固着された、発電に寄与する磁束
変化を発生させる磁石であり、この場合にはこれ
らの部品１〜３で振動子４を構成している。一
方、５は上記振動子４の支持と制動を兼ねる、ゴ
ム等の粘弾性材で構成されたリング状のダンパ
ー、６はダンパー５を保持するスリーブ、７はス
リーブ６の着脱を容易にするためにスリーブ６の
外側に形成されたつまみ、８はカートリツジのヘ
ツドシエル内に組込まれたヨークであり、このヨ
ーク８には上記磁石３による磁束変化を検出する
ためのコイル（図示せず）が巻装されている。な
お、上記スリーブ６はヨーク８に対して着脱自在
に取付けられており、スリーブ６をヨーク８から
引き抜くことによつて針交換が行なえるようにな
つている。 In Fig. 1, 1 is the needle tip, 2 is a cantilever that transmits vibrations detected by the needle tip 1, and 3 is a magnet fixed to the rear end of the cantilever that generates magnetic flux changes that contribute to power generation. In some cases, these components 1 to 3 constitute the vibrator 4. On the other hand, 5 is a ring-shaped damper made of a viscoelastic material such as rubber, which serves both to support and damp the vibrator 4, 6 is a sleeve that holds the damper 5, and 7 is a ring-shaped damper that serves to support and brake the vibrator 4. A knob 8 is formed on the outside of the sleeve 6, and a yoke 8 is built into the head shell of the cartridge.A coil (not shown) is wound around this yoke 8 to detect changes in magnetic flux caused by the magnet 3. has been done. The sleeve 6 is detachably attached to the yoke 8, and by pulling out the sleeve 6 from the yoke 8, the needle can be replaced.
この場合、振動子４は磁石３をダンパー５の中
心孔５ａに圧入し保持しただけであるから、振動
子４が十分に固定されず、レコードをトレースす
る際に針先１に第１図矢印方向の力が働くため、
振動子４が抜け出やすいという問題がある。これ
を解決するために磁石３とダンパー５の間を接着
剤で固定すると、ダンパー５側に付着した接着剤
によりダンパー５の硬化が変化し、そのコンプラ
イアンスが変化して再生時の周波数特性や分離特
性に悪影響を与えるといる問題がある。 In this case, since the vibrator 4 is only held by press-fitting the magnet 3 into the center hole 5a of the damper 5, the vibrator 4 is not fixed sufficiently, and when tracing the record, the needle tip 1 is attached to the arrow shown in Fig. 1. Because of the directional force,
There is a problem in that the vibrator 4 easily slips out. To solve this problem, if the magnet 3 and the damper 5 are fixed with adhesive, the adhesive attached to the damper 5 side will change the hardening of the damper 5, changing its compliance and changing the frequency characteristics and separation during playback. There is a problem that the characteristics are adversely affected.
本発明は簡単な構成でこのような従来の問題を
解決する振動子保持装置を提供するものである。 The present invention provides a vibrator holding device that solves these conventional problems with a simple configuration.
以下本発明の実施例を第２図〜第４図とともに
説明する。第２図〜第４図において第１図と同一
機能をもつ部分には同一符号を付して説明を省略
する。 Embodiments of the present invention will be described below with reference to FIGS. 2 to 4. In FIGS. 2 to 4, parts having the same functions as those in FIG. 1 are denoted by the same reference numerals, and explanations thereof will be omitted.
第２図はゴム等の粘弾性材料からなるリング状
のダンパー９の前面に、このダンパー９の中心孔
９ａを囲むような円筒状の突部９ｂを一体に設
け、突部９ｂの中心孔とダンパー９の中心孔９ａ
に磁石３を圧入するようにしたものである。 In FIG. 2, a cylindrical protrusion 9b surrounding a center hole 9a of the damper 9 is integrally provided on the front surface of a ring-shaped damper 9 made of a viscoelastic material such as rubber. Center hole 9a of damper 9
The magnet 3 is press-fitted into the hole.
このようにすれば、磁石３を圧入した後、磁石
３と突部９ｂの間に接着剤を塗布すれば振動子４
全体を安定に取付けることができ、しかも接着剤
が突部９ｂにのみ付着し、振動子４に制動をかけ
るリング状のダンパー９の硬度に殆ど影響を与え
ないから、周波数特性や分離性が損われることも
ない。 In this way, after press-fitting the magnet 3, if adhesive is applied between the magnet 3 and the protrusion 9b, the vibrator 4
The entire structure can be mounted stably, and since the adhesive adheres only to the protrusion 9b, it has almost no effect on the hardness of the ring-shaped damper 9 that applies damping to the vibrator 4, so frequency characteristics and isolation are not affected. You won't get hit.
第３図は第２図の突部９ｂの先端に大径部９ｃ
を一体に形成したものであり、第４図は筒状のカ
ンチレバー２の後端を直接ダンパー９の中心孔９
ａに圧入し、このカンチレバー２の中心孔内に磁
石３を固定したものである。このようにしても第
２図と同様の効果が得られる。 Figure 3 shows a large diameter portion 9c at the tip of the protrusion 9b in Figure 2.
FIG. 4 shows the rear end of the cylindrical cantilever 2 directly inserted into the center hole 9 of the damper 9.
a, and a magnet 3 is fixed in the center hole of this cantilever 2. Even in this case, the same effect as in FIG. 2 can be obtained.
以上のように本発明はリング状のダンパーの一
側面に、このダンパーの中心孔を囲むような筒状
の突部を一体に形成し、上記ダンパー及び突部の
中心孔に振動子を圧入し、振動子と上記突部の間
を接着剤にて接着するようにしたものであるか
ら、再生時の周波数特性や分離特性に影響を与え
ることなく、振動子を安定に保持することができ
る。 As described above, the present invention integrally forms a cylindrical protrusion that surrounds the center hole of the damper on one side of a ring-shaped damper, and press-fits a vibrator into the center hole of the damper and the protrusion. Since the vibrator and the protrusion are bonded with adhesive, the vibrator can be stably held without affecting the frequency characteristics and separation characteristics during reproduction.
第１図は従来例の断面図、第２図〜第４図は本
発明の第１、第２、第３の実施例を示す断面図で
ある。
１……針先、２……カンチレバー、３……磁
石、４……振動子、６……スリーブ、７……つま
み、８……ヨーク、９……ダンパー、９ａ……中
心孔、９ｂ……突部、９ｃ……大径部。
FIG. 1 is a sectional view of a conventional example, and FIGS. 2 to 4 are sectional views showing first, second, and third embodiments of the present invention. 1... Needle tip, 2... Cantilever, 3... Magnet, 4... Vibrator, 6... Sleeve, 7... Knob, 8... Yoke, 9... Damper, 9a... Center hole, 9b... ...Protrusion, 9c...Large diameter part.
Claims (1)
ーの中心孔を囲むような筒状の突部を一体に形成
し、上記突部及びダンパーの中心孔に振動子を圧
入し、突部と振動子の間に接着剤を塗布して上記
ダンパーと上記振動子とを接着したことを特徴と
する振動子保持装置。1. A cylindrical protrusion that surrounds the center hole of the damper is integrally formed on one side of the ring-shaped damper, and a vibrator is press-fitted into the protrusion and the center hole of the damper, so that the protrusion and the vibrator A vibrator holding device characterized in that the damper and the vibrator are bonded together by applying an adhesive between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14865281A JPS5850604A (en) | 1981-09-18 | 1981-09-18 | Holder for oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14865281A JPS5850604A (en) | 1981-09-18 | 1981-09-18 | Holder for oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5850604A JPS5850604A (en) | 1983-03-25 |
| JPS6235161B2 true JPS6235161B2 (en) | 1987-07-31 |
Family
ID=15457588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14865281A Granted JPS5850604A (en) | 1981-09-18 | 1981-09-18 | Holder for oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850604A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52103802U (en) * | 1976-02-05 | 1977-08-06 |
-
1981
- 1981-09-18 JP JP14865281A patent/JPS5850604A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5850604A (en) | 1983-03-25 |
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