JPS6218656A - Cylinder for information recorder - Google Patents
Cylinder for information recorderInfo
- Publication number
- JPS6218656A JPS6218656A JP60157695A JP15769585A JPS6218656A JP S6218656 A JPS6218656 A JP S6218656A JP 60157695 A JP60157695 A JP 60157695A JP 15769585 A JP15769585 A JP 15769585A JP S6218656 A JPS6218656 A JP S6218656A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- cylinder
- information recording
- resin
- flange
- 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
Links
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は情報記録装置例えば磁気記録テープを利用した
ＶＴＲに用いられる情報記録装置用シリンダに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cylinder for an information recording device used in an information recording device, for example, a VTR using a magnetic recording tape.
従来のＶＴＲの如き情報記録装置に使用されているシリ
ンダは、アルミニウム台金の如き金属の鋳造材もしくは
鍛造材を切削加工および鏡開加工して製作す・るか、特
開昭６０−４０５５０号公報に記載されている如く樹脂
で製作している。Cylinders used in conventional information recording devices such as VTRs are manufactured by cutting and milling a cast or forged metal such as an aluminum base metal, or as disclosed in Japanese Patent Application Laid-Open No. 60-40550. It is made of resin as described in the publication.
しかしながら金属材料を加工してシリンダを作る場合、
テープ走行面、テープリード部等を切削加工および鏡面
加工するのは複雑でコスト的に不利である。また樹脂を
用いて射出成形等で形成する方法は、その製造自体は比
較的簡単でコスト的にも有利であるが、シリンダ全体が
樹脂で形成されているため、温度、湿度の変４１更には
経時変化によってシリンダの形状寸法を所望精成に保持
し得ないことがある欠点を有していた。However, when processing metal materials to make cylinders,
Cutting and mirror-finishing the tape running surface, tape lead portion, etc. is complicated and disadvantageous in terms of cost. In addition, the method of forming the cylinder using resin by injection molding etc. is relatively easy to manufacture and is advantageous in terms of cost, but since the entire cylinder is made of resin, it is subject to changes in temperature and humidity41. It has a drawback that the shape and dimensions of the cylinder cannot be maintained at the desired refinement due to changes over time.
従って本発明は情報記録装置用シリンダの情報記録用テ
ープの走行面およびリード部の鏡面仕上げが容易で、製
造自体も容易であり、かつ温度、湿度の変化、経時変化
によるフレ状寸法の変化が生じないようにした、精！！
持のすぐれた情報記録製社用シリンダを提供゛すること
にある。Therefore, according to the present invention, it is easy to mirror-finish the running surface and lead portion of the information recording tape of a cylinder for an information recording device, the manufacturing itself is easy, and the flange size does not change due to changes in temperature, humidity, or changes over time. The spirit that prevented it from happening! !
The purpose of the present invention is to provide an information recording cylinder with excellent durability.
本発明の情報記録製重用シリンダは、従来のアルミニウ
ム合金、不銹鋼等からなる金属円筒体の情報記録テープ
を案内するテープ走行面およびリード部を樹脂で一体的
に形成した情報記録装置用シリンダにある。The information recording cylinder of the present invention is a cylinder for an information recording device in which a tape running surface and a lead portion for guiding a conventional information recording tape made of a metal cylinder made of aluminum alloy, stainless steel, etc. are integrally formed of resin. .
本発明により情報記録テープ（以下単にテープと称する
）の走行面およびリード部を形成する情報記録装置用シ
リンダ（以下単にシリンダと称する）の金鴇日筒体自体
は従来の如く、金属鋳造材ぼたは鍛造材を切削加工して
作る。この場合鏡面加工をする必要はない。次にこの切
削加工した金属円筒体のテープ走行面即ち金属円筒体外
周面３よびテープを案内するリード部を樹／ＩＥ（を用
いて射出成形、遠心成形等により一体的に形成するので
ある。According to the present invention, the gold cylinder itself of the cylinder for an information recording device (hereinafter simply referred to as cylinder) that forms the running surface and lead portion of the information recording tape (hereinafter simply referred to as tape) is made of a metal casting material as in the past. or by cutting forged material. In this case, there is no need for mirror finishing. Next, the tape running surface of the cut metal cylindrical body, that is, the outer peripheral surface 3 of the metal cylindrical body, and the lead portion for guiding the tape are integrally formed by injection molding, centrifugal molding, etc. using wood/IE.
なお本発明のシリンダにおいては金属円筒体の外周面に
テープ走行６およびテープリード部を樹脂で一体的ζこ
接着形成させるのであるが、このとき樹脂からなるテー
プ走行置忘よびり−ド部を保持するのを容易にするため
、金属円筒体の外側下部にフランジを設けてこの上に上
記テープ走行面およびリード部を乗せるように成形する
のが好ましい。In the cylinder of the present invention, the tape running 6 and the tape lead part are integrally bonded with resin on the outer peripheral surface of the metal cylindrical body. In order to facilitate holding, it is preferable to provide a flange on the outer lower part of the metal cylindrical body and mold the tape running surface and lead portion onto this flange.
上述した樹脂としては、エポキシ樹脂、ポリカーボネー
ト樹脂、ポリエステル樹脂、弗素化樹脂等任意の樹脂を
使用できる。またこれらは通常の充填剤を含有させても
よい。As the above-mentioned resin, any resin such as epoxy resin, polycarbonate resin, polyester resin, or fluorinated resin can be used. They may also contain conventional fillers.
本発明によれば上述した如く、シリンダのテープ走行面
およびリード部を樹脂を用いて射出成形、遠心成形する
ことにより形成するため、この成形時に使用する金型の
内面を鏡面仕上げしておく必要がある。According to the present invention, as described above, since the tape running surface and lead portion of the cylinder are formed by injection molding or centrifugal molding using resin, it is necessary to mirror-finish the inner surface of the mold used for this molding. There is.
不発明のシリンダにおいては、その金属円筒体の表面は
従来の如く鏡面仕上げをする必要がなく、この円筒体表
面に一体的にテープ走行面およびリード部を形成すると
きの金型の内面を鏡面仕上げしておくことで、テープ走
行置忘よびリード部を加工精度良く面粗度のすぐれた。In the cylinder of the present invention, the surface of the metal cylinder does not need to be mirror-finished as in the conventional case, and the inner surface of the mold is mirror-finished when the tape running surface and lead portion are integrally formed on the surface of the cylinder. By finishing the tape, the tape travel and lead parts can be processed with good precision and excellent surface roughness.
シリンダを得ることができる。このため円筒体の切削加
工自体も容易で加工工数を減少させることができる。し
かもシリンダの円筒体本体は金属で構成されているため
、温度、湿度等の環境条件の変化に対し耐性を有するの
でシリンダとしての寸法精度の経時変化を極めて小さく
することができる。You can get the cylinder. Therefore, cutting of the cylindrical body itself is easy and the number of processing steps can be reduced. Moreover, since the cylindrical main body of the cylinder is made of metal, it is resistant to changes in environmental conditions such as temperature and humidity, so that changes over time in the dimensional accuracy of the cylinder can be extremely minimized.
以下に南面を参照して本発明の実施例について説明する
。Examples of the present invention will be described below with reference to the south side.
第１図は本発明によるＶＴＲ用シリンダの一例を示す斜
視図であり、第２図はその断面図である。FIG. 1 is a perspective view showing an example of a VTR cylinder according to the present invention, and FIG. 2 is a sectional view thereof.
第１図８よび第２図に８いて、ｌはシリンダの円筒体で
あり、アルミニウム合金の鋳造体を切削加工して作った
。このとき円筒体の外側下部にフランジ２を設けてある
。本発明によれ（ｆ。8 in FIG. 1 and FIG. 2, l is the cylindrical body of the cylinder, which was made by cutting an aluminum alloy cast body. At this time, a flange 2 is provided at the outer lower part of the cylindrical body. According to the invention (f.
上記フランジ２の上で、円筒体１の外周面に図示せる如
く、テープ走行面３およびテープリード部４を一体的に
射出成形によりカーボンブラックの粉末を充填したエポ
キシ樹脂で形成し總リード部４はテープ走行が外れない
ように段差を形成しである。このとき使用した金型の内
面は鏡面仕上げしである。On the flange 2, as shown on the outer peripheral surface of the cylindrical body 1, a tape running surface 3 and a tape lead part 4 are integrally formed by injection molding with epoxy resin filled with carbon black powder. A step is formed to prevent the tape from running out of alignment. The inner surface of the mold used at this time was mirror finished.
本発明による情報記録装置用シリンダに招いて、そのテ
ープ走行面３およびリード部４は樹脂成形法で短時間で
形成することができ、これらの加工に切削や鏡面加工も
しくは研摩加工を必要とせずに、金型の内面に応じた鏡
面を作ることができる。またシリンダの金属円筒体も段
差のあるリード部４の加工を必要とせず、しかも切削加
工のみで製作でき、生産性も向上する。In the cylinder for an information recording device according to the present invention, the tape running surface 3 and lead portion 4 can be formed in a short time by resin molding, and these processes do not require cutting, mirror finishing, or polishing. In addition, it is possible to create a mirror surface that matches the inner surface of the mold. Further, the metal cylindrical body of the cylinder does not require machining of the lead portion 4 having a step, and can be manufactured only by cutting, which improves productivity.
またシリンダ全体を樹脂で形成せず、シリンダの円筒体
を金属で構成しているので、温度、湿度等の環境条件の
変化および経時変化に耐性を有するので、寸法精度の安
定性もすぐれている。In addition, since the entire cylinder is not made of resin, but the cylindrical body of the cylinder is made of metal, it is resistant to changes in environmental conditions such as temperature and humidity, and changes over time, resulting in excellent stability in dimensional accuracy. .
【図面の簡単な説明】
第１図は本発明によるＶＴＲ用シリンダの−例を示す斜
視図、第２図はその断面図である。
ｌはシリンダ円筒体、２はフランジ、３はテープ走行面
、４はテープリード部。
特許出願人 松下電器産業株式会社
第１図
第２図BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a VTR cylinder according to the present invention, and FIG. 2 is a sectional view thereof. 1 is a cylinder cylindrical body, 2 is a flange, 3 is a tape running surface, and 4 is a tape lead portion. Patent applicant: Matsushita Electric Industrial Co., Ltd. Figure 1 Figure 2
Claims (1)
面およびリード部を樹脂で一体的に形成したことを特徴
とする情報記録装置用シリンダ。 ２、金属円筒体の外側下部にフランジを設けてある特許
請求の範囲第１項記載の情報記録用シリンダ。[Scope of Claims] 1. A cylinder for an information recording device, characterized in that a tape running surface and a lead portion for guiding a metal cylindrical information recording tape are integrally formed of resin. 2. The information recording cylinder according to claim 1, wherein a flange is provided at the outer lower part of the metal cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60157695A JPS6218656A (en) | 1985-07-17 | 1985-07-17 | Cylinder for information recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60157695A JPS6218656A (en) | 1985-07-17 | 1985-07-17 | Cylinder for information recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6218656A true JPS6218656A (en) | 1987-01-27 |
Family
ID=15655362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60157695A Pending JPS6218656A (en) | 1985-07-17 | 1985-07-17 | Cylinder for information recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6218656A (en) |
-
1985
- 1985-07-17 JP JP60157695A patent/JPS6218656A/en active Pending
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