JPH0413768Y2 - - Google Patents
Info
- Publication number
- JPH0413768Y2 JPH0413768Y2 JP1981149044U JP14904481U JPH0413768Y2 JP H0413768 Y2 JPH0413768 Y2 JP H0413768Y2 JP 1981149044 U JP1981149044 U JP 1981149044U JP 14904481 U JP14904481 U JP 14904481U JP H0413768 Y2 JPH0413768 Y2 JP H0413768Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- rubber
- support plate
- plate
- damper
- 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 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は、磁気録画装置（VTR、ビデオテー
プレコーダ）の録画ヘツドとその駆動モータとの
間に発生するねじり振動を吸収するダンパに係
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a damper that absorbs torsional vibrations generated between a recording head of a magnetic recording device (VTR, video tape recorder) and its drive motor.
一般に磁気録画装置は第１図に示す如く録画ヘ
ツドＨがその直下方の駆動モータＭの回転軸Ａに
支持されて該駆動モータＭによつて回転するよう
になつているが、回転中に駆動モータＭの回転力
の変動により録画ヘツドＨの軸にねじり振動が生
ずることがあり、画面の乱れる原因になるのでこ
の振動を除く必要がある。そのため駆動モータＭ
の直下にねじり振動防止用のダンパD1を取付け
ることが提案されているが、次の如き問題があ
る。 Generally, in a magnetic recording device, as shown in FIG. 1, a recording head H is supported by a rotating shaft A of a drive motor M directly below the recording head H, and is rotated by the drive motor M. Fluctuations in the rotational force of the motor M may cause torsional vibrations on the shaft of the recording head H, which causes screen disturbances, so it is necessary to remove these vibrations. Therefore, the drive motor M
It has been proposed to install a damper D1 for torsional vibration prevention directly below the damper, but there are the following problems.
上記ダンパD1は第２図に示す如くゴム状弾性
体のリング、即ちゴムリング１の内周の周溝１ａ
に支持板２の外周縁部を、外周の周溝１ｂに翼板
３の内周縁部をそれぞれ固定したもので、支持板
２は中心に軸挿孔２０を有するドーナツ形、翼板
３はゴムリング１の外周に嵌合するドーナツ形に
それぞれ形成し、支持板２の外周縁部および翼板
３の内周縁部に接着剤４をつけて成形金型内に支
持しておいて配合ゴムを充填することによりゴム
リング１を形成し、これを加硫処理して接着剤４
により両板２，３をゴムリング１に固定してい
る。即ち、その製作にはゴムリング１に支持板２
の外周縁部を翼板３の内周縁部を接着剤４で固着
せしめるため接着剤の塗布の手数がかかり困難が
多いのみならず加硫時に接着剤が流れて板面にば
りを生じ、それを除去するため仕上工数が多くな
り、不利であつた。 As shown in FIG. 2, the damper D 1 is a rubber-like elastic ring, that is, a circumferential groove 1a on the inner circumference of the rubber ring 1.
The outer peripheral edge of the support plate 2 is fixed to the outer peripheral groove 1b, and the inner peripheral edge of the blade plate 3 is fixed to the circumferential groove 1b on the outer periphery.The support plate 2 is donut-shaped with a shaft insertion hole 20 in the center, and the blade plate 3 is made of rubber Each ring 1 is formed into a donut shape that fits around the outer periphery of the ring 1, and an adhesive 4 is applied to the outer periphery of the support plate 2 and the inner periphery of the wing plate 3, and the compound rubber is supported in a mold. A rubber ring 1 is formed by filling the rubber ring 1, which is then vulcanized to form an adhesive 4.
Both plates 2 and 3 are fixed to the rubber ring 1. That is, in its production, a support plate 2 is attached to a rubber ring 1.
The outer peripheral edge of the vane plate 3 is fixed to the inner peripheral edge of the vane plate 3 with adhesive 4, which not only requires a lot of effort and difficulty in applying the adhesive, but also causes burrs to flow on the plate surface due to the adhesive flowing during vulcanization. This was disadvantageous because the number of finishing steps required was increased to remove it.
本考案は如上の問題点を解決すべくなしたもの
で、ゴム状弾性体のリングに固定される支持板の
外周辺と翼板の内周辺とに円形もしくは角形の穿
孔又は切欠或は凹凸等により係合部が形成され、
ゴム状弾性体のリング成形時にその内周には上記
支持板の外周辺、外周には上記翼板の内周辺をそ
れぞれゴム状弾性体のリング材中に埋込み上記両
板の係合部に該リング材を充填させて上記両板を
ゴム状弾性体のリングに固定支持したことを特徴
とする磁気録画装置の録画ヘツド用ダンパに係
る。 The present invention has been developed to solve the above problems, and includes circular or square perforations, notches, irregularities, etc. on the outer periphery of the support plate fixed to the ring of rubber-like elastic body and the inner periphery of the wing plate. An engaging part is formed by
When molding a ring of rubber-like elastic material, the outer periphery of the support plate is embedded in the inner periphery of the rubber-like elastic material, and the inner periphery of the wing plate is embedded in the outer periphery of the ring material of the rubber-like elastic material, so that the outer periphery of the supporting plate and the inner periphery of the vane plate are embedded in the ring material of the rubber-like elastic material, so that they fit into the engagement portion between the two plates. The present invention relates to a damper for a recording head of a magnetic recording device, characterized in that both plates are fixedly supported by a ring made of a rubber-like elastic body by being filled with a ring material.
以下、本考案を第３図乃至第６図に示した実施
例によつて説明すると、第３図は支持板と翼板を
段違いに支持した実施例の切断正面図、第４図は
第３図−の断面図、第５図は支持板と翼板の
一部を示した平面図、第６図は支持板と翼板を同
高に支持した実施例の切断正面図で、第１図及び
第２図に示す従来例と同様に１はゴムリング、２
は支持板、２０は軸挿孔、３は翼板である。 Hereinafter, the present invention will be explained with reference to the embodiment shown in FIGS. 3 to 6. FIG. 3 is a cutaway front view of the embodiment in which the support plate and the wing plate are supported at different levels, and FIG. 5 is a plan view showing a part of the support plate and the wing plate, FIG. 6 is a cutaway front view of an embodiment in which the support plate and the wing plate are supported at the same height, and FIG. Similarly to the conventional example shown in FIG. 2, 1 is a rubber ring, and 2 is a rubber ring.
20 is a support plate, 20 is a shaft insertion hole, and 3 is a wing plate.
上記の支持板２及び翼板３はドーナツ形を呈し
支持板２の外周辺と翼板３の内周辺にはそれぞれ
第３図、第４図及び第６図に示す如く多数の円孔
もしくは角孔を穿孔するか或は第５図の如き切欠
により又は図示してない凹凸の形成等により係合
部５を設ける。そしてゴムリング１の成形時に上
記支持板２及び翼板３を成形用金型に支持してお
いて配合ゴムを充填することによりこのゴム中に
支持板２の外周辺と翼板３の内周辺を埋込んで前
記各係合部５にゴムを充填せしめ、その状態で加
硫処理して両板２，３をゴムリング１に固定支持
する。 The support plate 2 and the vane plate 3 have a donut shape, and the outer periphery of the support plate 2 and the inner periphery of the vane plate 3 have many circular holes or corners as shown in FIGS. 3, 4, and 6, respectively. The engaging portion 5 is provided by drilling a hole, by notching as shown in FIG. 5, or by forming unevenness (not shown). Then, when molding the rubber ring 1, the support plate 2 and the vane plate 3 are supported in a mold for molding, and compounded rubber is filled into the rubber, so that the outer periphery of the support plate 2 and the inner periphery of the vane plate 3 are filled into the rubber. is embedded to fill each of the engaging portions 5 with rubber, and in that state, the plates 2 and 3 are fixedly supported on the rubber ring 1 by vulcanization treatment.
上記の支持板２と翼板３は第３図の如く段違い
にしてダンパD2を構成し、又は第６図の如く同
高位置に固定してダンパD3を構成する。ダンパ
D3はダンパD2に比しゴムリング１の厚さを減じ、
機器を一層小形に出来る利点がある。 The support plate 2 and the vane plate 3 are arranged at different levels as shown in FIG. 3 to form a damper D2 , or fixed at the same level as shown in FIG. 6 to form a damper D3 . damper
D 3 reduces the thickness of the rubber ring 1 compared to damper D 2 ,
This has the advantage that the equipment can be made even more compact.
以上の構成により、ゴム状弾性体のリングの成
形時に支持板及び翼板が同時に固定されるので、
これら両板の固定に従来の如き煩雑な工程を要し
ないのは勿論のこと接着剤の塗布や接着剤により
生じたばりを切削除去する手数を要せず簡単に廉
価に製作できるのみならず、ゴム状弾性体のリン
グの該弾性体が両板の係合部に充填されて両板は
確実に固定支持され、このように構成されたダン
パD2又はD3は支持板の軸挿孔により駆動モータ
Ｍの軸Ａに嵌合固定される。そしてこのダンパは
ゴム状弾性体のリングに支持板と翼板が前記の如
く固定されて両板の間はゴム状弾性体により緩衝
されねじり振動の吸収に有効である。 With the above configuration, the support plate and the wing plate are fixed at the same time when forming the rubber-like elastic ring.
Not only does fixing these two plates not require the complicated process of conventional methods, but it also does not require the trouble of applying adhesive or cutting out burrs caused by adhesive, making it easy to manufacture at low cost. The elastic body of the ring of rubber-like elastic body is filled in the engaging portion of both plates, and both plates are securely supported, and the damper D 2 or D 3 configured in this way is inserted into the shaft hole of the support plate. It is fitted and fixed to the shaft A of the drive motor M. In this damper, the supporting plate and the vane plate are fixed to a ring made of a rubber-like elastic body as described above, and the space between the two plates is buffered by the rubber-like elastic body, which is effective in absorbing torsional vibrations.
本考案は前述の如き構成及び効果を有し、良く
所期の目的を達したもので、実益多大な優秀考案
である。 The present invention has the above-mentioned structure and effects, and has successfully achieved the intended purpose, and is an excellent invention with great practical benefits.
第１図は磁気録画装置の録画ヘツド等を示す概
略図、第２図は従来のダンパを示す切断正面図、
第３図は本考案に係るダンパの一実施例の切断正
面図、第４図は第３図−断面図、第５図は支
持板及び翼板の一実施例の平面図、第６図は本考
案ダンパの他の実施例の切断正面図である。
１はゴムリング、２は支持板、３は翼板、５は
係合部、２０は軸挿孔、Ａは回転軸、D2，D3は
ダンパ、Ｈは録画ヘツド、Ｍは駆動モータであ
る。
FIG. 1 is a schematic diagram showing the recording head of a magnetic recording device, and FIG. 2 is a cutaway front view showing a conventional damper.
FIG. 3 is a cutaway front view of an embodiment of the damper according to the present invention, FIG. 4 is a sectional view of FIG. 3, FIG. 5 is a plan view of an embodiment of the support plate and vane, and FIG. FIG. 7 is a cutaway front view of another embodiment of the damper of the present invention. 1 is a rubber ring, 2 is a support plate, 3 is a wing plate, 5 is an engaging part, 20 is a shaft insertion hole, A is a rotating shaft, D 2 and D 3 are dampers, H is a recording head, and M is a drive motor. be.
Claims (1)
周辺と翼板の内周辺とに円形もしくは角形の穿孔
又は切欠或は凹凸等の係合部がそれぞれ形成さ
れ、上記リングの内周には上記支持板の外周辺
を、上記リングの外周には上記翼板の内周辺をそ
れぞれ上記リング中に埋込・固定支持するよう
に、上記両板の係合部に上記リングのゴム状弾性
体が充填されてなることを特徴とする磁気録画装
置の録画ヘツド用ダンパ。 Engaging parts such as circular or square perforations, notches, or unevenness are formed on the outer periphery of the support plate fixed to the ring of rubber-like elastic body and on the inner periphery of the wing plate, respectively, and the inner periphery of the ring is The rubber-like elastic body of the ring is embedded in the engagement portion of both plates so that the outer periphery of the support plate is embedded and fixedly supported in the outer periphery of the ring, and the inner periphery of the wing plate is embedded and fixed in the ring. A damper for a recording head of a magnetic recording device, characterized in that it is filled with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14904481U JPS5856330U (en) | 1981-10-07 | 1981-10-07 | Damper for recording head of magnetic recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14904481U JPS5856330U (en) | 1981-10-07 | 1981-10-07 | Damper for recording head of magnetic recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5856330U JPS5856330U (en) | 1983-04-16 |
| JPH0413768Y2 true JPH0413768Y2 (en) | 1992-03-30 |
Family
ID=29941834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14904481U Granted JPS5856330U (en) | 1981-10-07 | 1981-10-07 | Damper for recording head of magnetic recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5856330U (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60106018A (en) * | 1983-11-14 | 1985-06-11 | Toshiba Corp | Rotary magnetic head device |
| JPS60147531A (en) * | 1984-01-12 | 1985-08-03 | Mazda Motor Corp | Suction device for engine |
| JPH041299Y2 (en) * | 1984-11-19 | 1992-01-17 | ||
| JPS6192720U (en) * | 1984-11-26 | 1986-06-16 | ||
| JPS61157718A (en) * | 1984-12-29 | 1986-07-17 | Mazda Motor Corp | Air intake device of multicylinder engine |
| JPH0437229Y2 (en) * | 1985-03-07 | 1992-09-02 | ||
| JPH0624004Y2 (en) * | 1987-01-10 | 1994-06-22 | ティアツク株式会社 | Rotating drum device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535830U (en) * | 1978-08-28 | 1980-03-07 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6327292Y2 (en) * | 1979-01-30 | 1988-07-25 |
-
1981
- 1981-10-07 JP JP14904481U patent/JPS5856330U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535830U (en) * | 1978-08-28 | 1980-03-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5856330U (en) | 1983-04-16 |
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