JP2645909B2 - Cylinder for information recording / reproducing device - Google Patents

Cylinder for information recording / reproducing device

Info

Publication number
JP2645909B2
JP2645909B2 JP2237601A JP23760190A JP2645909B2 JP 2645909 B2 JP2645909 B2 JP 2645909B2 JP 2237601 A JP2237601 A JP 2237601A JP 23760190 A JP23760190 A JP 23760190A JP 2645909 B2 JP2645909 B2 JP 2645909B2
Authority
JP
Japan
Prior art keywords
cylinder
fixed
information recording
fixed cylinder
housing
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 - Fee Related
Application number
JP2237601A
Other languages
Japanese (ja)
Other versions
JPH04117657A (en
Inventor
敬久 内本
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.)
Sanyo Denki Co Ltd
Original Assignee
Sanyo Denki Co Ltd
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 Sanyo Denki Co Ltd filed Critical Sanyo Denki Co Ltd
Priority to JP2237601A priority Critical patent/JP2645909B2/en
Publication of JPH04117657A publication Critical patent/JPH04117657A/en
Application granted granted Critical
Publication of JP2645909B2 publication Critical patent/JP2645909B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Automatic Disk Changers (AREA)

Description

【発明の詳細な説明】 (イ) 産業上の利用分野 本発明は、情報記録再生装置用シリンダの固定シリン
ダに関する。
The present invention relates to a fixed cylinder of a cylinder for an information recording / reproducing apparatus.

(ロ) 従来の技術 従来の情報記録再生装置用シリンダ、例えばR−DAT
などのシリンダに対するテープの巻き付け角が180゜以
下であるシリンダの樹脂成形された固定シリンダが特開
昭61−269215号公報(G11B5/52)に開示されている。第
4図は斜視図であり第5図は断面図であり第6図は固定
シリンダの斜視図である。回転ヘッド(1)が取り付け
られている回転シリンダ(2)が固定シリンダ(3)に
軸受(4)及び回転軸(5)により回転自在に取り付け
られている。また、固定シリンダ(3)にはテープ
(6)を案内するテープリード部(7)が形成されてお
り固定部(9)(10)によりシャーシ(図示せず)に固
定される。更に、上記の固定シリンダ(2)は樹脂成形
の際、金型は径方向(10)に離型すればよい。
(B) Conventional technology Conventional information recording / reproducing device cylinder, for example, R-DAT
Japanese Patent Application Laid-Open No. 61-269215 (G11B5 / 52) discloses a resin-fixed cylinder having a tape wrap angle of 180 ° or less with respect to the cylinder. 4 is a perspective view, FIG. 5 is a sectional view, and FIG. 6 is a perspective view of a fixed cylinder. A rotating cylinder (2) to which a rotating head (1) is attached is rotatably attached to a fixed cylinder (3) by a bearing (4) and a rotating shaft (5). A tape lead (7) for guiding the tape (6) is formed in the fixed cylinder (3), and is fixed to a chassis (not shown) by the fixed parts (9) and (10). Further, the mold may be released in the radial direction (10) when the fixed cylinder (2) is molded with resin.

(ハ) 発明が解決しようとする課題 上記従来技術においては、軸受の外輪と固定シリンダ
を装着する適当な接着剤がなく固定が難しく、樹脂成形
品はタップ加工が困難であるため固定シリンダをシャー
シに精度良く固定できない。また、樹脂材料は導電性が
低く金属製の回転シリンダのアース効果が乏しく記録再
生信号にノイズが多くなる。更に、樹脂材料は熱伝導性
が金属材料に比べて悪くシリンダが結露した際にヒータ
を用いても熱の移動がスムーズではない。
(C) Problems to be Solved by the Invention In the above-mentioned prior art, it is difficult to fix the outer ring of the bearing and the fixed cylinder without an appropriate adhesive, and it is difficult to tap the resin molded product. Cannot be fixed accurately. Further, the resin material has low conductivity, and the ground effect of the metal rotary cylinder is poor, so that the recording / reproducing signal has much noise. Further, the heat conductivity of the resin material is lower than that of the metal material, and the heat transfer is not smooth even if a heater is used when the cylinder is dewed.

(ニ) 課題を解決するための手段 本発明は上記欠点に鑑み為されたもので、回転ヘッド
を有する回転シリンダとテープリード部を有する固定シ
リンダからなる情報記録再生装置用シリンダであって、
固定シリンダが軸受が装着される金属製のハウジングと
樹脂により一体的に成形され、前記ハウジングには前記
固定シリンダをシャーシに対して固定するための固定部
が形成されている構成とする。
(D) Means for Solving the Problems The present invention has been made in view of the above-mentioned drawbacks, and is a cylinder for an information recording / reproducing apparatus including a rotary cylinder having a rotary head and a fixed cylinder having a tape lead portion,
A fixed cylinder is formed integrally with a metal housing on which a bearing is mounted and a resin, and the housing is formed with a fixing portion for fixing the fixed cylinder to a chassis.

(ホ) 作用 本発明によれば、金属部分でシリンダを固定すること
ができ、アース効果もあり、シリンダ結露時に使用する
ヒータの熱の移動も良好となる。
(E) Function According to the present invention, the cylinder can be fixed by the metal part, the earth effect is also provided, and the heat transfer of the heater used at the time of dew condensation on the cylinder is improved.

(ヘ) 実施例 本発明の実施例を図面を用いて説明する。また、同一
部品には同一符号を付し説明を省略する。第1図は実施
例の斜視図であり第2図は第1図の断面図であり第3図
は固定シリンダの斜視図である。図において、固定シリ
ンダ(3)は金属製のハウジング(11)と樹脂により一
体的に成形される。尚、(11a)はハウジング(11)の
抜け止めである。回転軸(5)を含む軸一体型軸受(1
2)はハウジング(11)内に挿入され、ハウジング(1
1)に設けられた接着剤注入孔(13)から接着剤が溝(1
4)に注入され接着固定される。(15)はプリント基板
であり、(16)はロータリートランスである。また、回
転シリンダ(2)は回転シリンダ取付ディスク(17)と
ともに回転軸(5)に圧入される。次に、シリンダ固定
用のブラケット(18)がハウジング(11)に設けられた
ブラケット固定部(11b)にネジ(19)により固定され
る。ブラケット(18)にはネジ穴(18a)が設けられて
おりネジによりシャーシ(図示せず)に固定される。ま
た、(20)は回転シリンダ(2)を回転させるモータで
ある。
(F) Example An example of the present invention will be described with reference to the drawings. Further, the same components are denoted by the same reference numerals, and description thereof will be omitted. 1 is a perspective view of the embodiment, FIG. 2 is a sectional view of FIG. 1, and FIG. 3 is a perspective view of a fixed cylinder. In the figure, the fixed cylinder (3) is integrally formed with a metal housing (11) and a resin. (11a) is a stopper for the housing (11). A shaft-integrated bearing (1
2) is inserted into the housing (11) and the housing (1
Adhesive is injected into the groove (1) from the adhesive injection hole (13) provided in 1).
4) Injected and fixed. (15) is a printed circuit board, and (16) is a rotary transformer. The rotary cylinder (2) is pressed into the rotary shaft (5) together with the rotary cylinder mounting disk (17). Next, a cylinder fixing bracket (18) is fixed to a bracket fixing portion (11b) provided on the housing (11) by a screw (19). The bracket (18) is provided with a screw hole (18a) and is fixed to a chassis (not shown) by screws. Reference numeral (20) denotes a motor for rotating the rotary cylinder (2).

以上の構成により、アース効果はブラケット(18)と
回転シリンダの導通性を考えると回転シリンダ(2)と
シャーシは軸一体型軸受(12)、ハウジング(11)、ブ
ラケット(18)を介して導通するが、通常軸一体型軸受
(12)の軸と外輪との絶縁抵抗は100〜200Ωであり、回
転シリンダ(5)とシャーシ間の絶縁抵抗は100〜200Ω
となる。次に、シリンダが結露しテープ走行が困難とな
りヒータを使用した際の熱の移動は、ヒータをブラケッ
ト(18)に取付けた場合は、ブラケット(18)、ハウジ
ング(11)、軸一体型軸受(12)、回転シリンダと伝わ
り、金属同志であるので熱の移動も固定シリンダが樹脂
のみで成形されている場合に比べ速くなる。
With the above configuration, the grounding effect is conducted between the rotating cylinder (2) and the chassis via the shaft-integrated bearing (12), the housing (11), and the bracket (18) in consideration of the continuity between the bracket (18) and the rotating cylinder. However, the insulation resistance between the shaft and the outer ring of the shaft-integrated bearing (12) is usually 100 to 200Ω, and the insulation resistance between the rotating cylinder (5) and the chassis is 100 to 200Ω.
Becomes Next, when the heater is mounted on the bracket (18), the movement of heat when the heater is used is limited to the bracket (18), the housing (11), and the shaft-integrated bearing ( 12) Since it is transmitted to the rotating cylinder and is made of metal, the heat transfer is faster than when the fixed cylinder is formed only of resin.

(ト) 発明の効果 以上のように本発明によれば、固定シリンダを金属製
のハウジングと樹脂により一体的に成形するので、軸受
の固定が接着剤により確実に行え、固定シリンダのシャ
ーシに対する固定も金属部分で行えるので精度良く固定
できる。また、アース効果もあり、ヒータ使用時の熱伝
導も金属同志なので熱の移動が樹脂のみの場合より速く
なる。
(G) Effects of the Invention As described above, according to the present invention, since the fixed cylinder is formed integrally with the metal housing and the resin, the bearing can be securely fixed by the adhesive, and the fixed cylinder is fixed to the chassis. Can be performed with a metal part, so that it can be accurately fixed. In addition, there is an earthing effect, and heat transfer during use of the heater is the same between metals, so that heat transfer is faster than in the case of using only a resin.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の実施例の斜視図、第2図は本発明の実
施例の断面図、第3図は本発明の実施例における固定シ
リンダの斜視図、第4図、第5図および第6図は従来例
をそれぞれ示す図である。 (1)……回転ヘッド、(2)……回転シリンダ、
(7)……テープリード部、(3)……固定シリンダ、
(12)……軸一体型軸受(軸受)、(11b)……ブラケ
ット固定部(固定部)。
1 is a perspective view of an embodiment of the present invention, FIG. 2 is a cross-sectional view of the embodiment of the present invention, FIG. 3 is a perspective view of a fixed cylinder in the embodiment of the present invention, FIG. 4, FIG. FIG. 6 is a view showing a conventional example. (1) ... rotating head, (2) ... rotating cylinder,
(7) ... tape lead part, (3) ... fixed cylinder,
(12)… Shaft-integrated bearing (bearing), (11b)… Bracket fixing part (fixing part).

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】回転ヘッドを有する回転シリンダとテープ
リード部を有する固定シリンダからなる情報記録再生装
置用シリンダであって、前記固定シリンダが軸受が装着
される金属製のハウジングと樹脂により一体的に成形さ
れ、前記ハウジングには前記固定シリンダをシャーシに
対して固定するための固定部が形成されていることを特
徴とする情報記録再生装置用シリンダ。
An information recording / reproducing apparatus cylinder comprising a rotary cylinder having a rotary head and a fixed cylinder having a tape lead portion, wherein the fixed cylinder is integrally formed of resin and a metal housing on which a bearing is mounted. A cylinder for an information recording / reproducing device, wherein the cylinder is molded and a fixing portion for fixing the fixed cylinder to a chassis is formed in the housing.
JP2237601A 1990-09-07 1990-09-07 Cylinder for information recording / reproducing device Expired - Fee Related JP2645909B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2237601A JP2645909B2 (en) 1990-09-07 1990-09-07 Cylinder for information recording / reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2237601A JP2645909B2 (en) 1990-09-07 1990-09-07 Cylinder for information recording / reproducing device

Publications (2)

Publication Number Publication Date
JPH04117657A JPH04117657A (en) 1992-04-17
JP2645909B2 true JP2645909B2 (en) 1997-08-25

Family

ID=17017742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2237601A Expired - Fee Related JP2645909B2 (en) 1990-09-07 1990-09-07 Cylinder for information recording / reproducing device

Country Status (1)

Country Link
JP (1) JP2645909B2 (en)

Also Published As

Publication number Publication date
JPH04117657A (en) 1992-04-17

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