JPS61129783A - Tape guide for magnetic tape cassette - Google Patents
Tape guide for magnetic tape cassetteInfo
- Publication number
- JPS61129783A JPS61129783A JP25089384A JP25089384A JPS61129783A JP S61129783 A JPS61129783 A JP S61129783A JP 25089384 A JP25089384 A JP 25089384A JP 25089384 A JP25089384 A JP 25089384A JP S61129783 A JPS61129783 A JP S61129783A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- tape guide
- tape
- magnetic tape
- guide
- 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
Abstract
Description
【発明の詳細な説明】
ｌ王立１
本発明は、磁気テープカセット用テープガイドに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape guide for a magnetic tape cassette.
ｍ五
この種従来の磁気テープカセット用テープガイドは、磁
気テープカセットが長期間の使用に耐えられるように、
表面粗度が良好である切削加工による金属製ガイドが用
いられていた。しかし、金属製ガイドは耐摩耗性、耐摩
擦特性に優れていると共に、切削加工によるため表面の
形状（例えば鏡面及び長手方向のウネリの度合）を良好
にし得るという利点はあったが、加工コストが高く且つ
大量生産に向かないため製造コストが高いという問題が
あった。そこで、相次ぐコストの低減が強いられている
現在では、大量生産性に優れてコストダウンがはかれる
ものとして、実開昭５８−２６７８６号公軸に記載の如
（射出成形が可能な合成樹脂製ガイドを採用する試みが
行われてきているが、これは切削加工による金属製ガイ
ドの特性に代るほど全ての特性を満たしているとはいえ
なかった。即ち、テープガイドの形状や成形材料の改良
により金属製ガイドの特性に近い特性のものが作られる
ようになってきてはいるが、使用時の環境条件によって
著しい特性の低下が生じるという問題があった０例えば
、従来の合成樹脂製ガイドは、低温度、低湿度の時には
磁気テープとテープガイドとの摩擦によるｗｌを現象が
生じて磁気テープがテープガイドに吸着されてしまい、
テープテンシランが増加してテープデツキの１ｌｌＩＩ
１機構が働き、テープ送行が停止してしまうことがあっ
た。m5 This type of conventional tape guide for magnetic tape cassettes is designed to ensure that the magnetic tape cassettes can withstand long-term use.
A machined metal guide with good surface roughness was used. However, metal guides have excellent wear resistance and friction resistance, and because they are machined, the surface shape (for example, mirror surface and degree of longitudinal undulation) can be improved, but the processing cost is high. There was a problem in that the manufacturing cost was high because it was high and not suitable for mass production. Therefore, in today's world where cost reductions are being forced one after another, a guide made of synthetic resin that can be injection molded is proposed as a material that has excellent mass productivity and can reduce costs. Attempts have been made to adopt tape guides, but it cannot be said that they satisfy all the characteristics to the extent that they can replace the characteristics of metal guides made by cutting.In other words, improvements in the shape of tape guides and molding materials have been made. Although guides with properties close to those of metal guides have come to be manufactured, there is a problem in that their properties deteriorate significantly depending on the environmental conditions during use.For example, conventional synthetic resin guides When the temperature and humidity are low, a phenomenon occurs due to friction between the magnetic tape and the tape guide, and the magnetic tape is attracted to the tape guide.
Tape tensilan increases and the tape deck becomes 1llII
There were times when one mechanism would work and tape feeding would stop.
■−五
本発明は、上記問題点に鑑み、低温、低湿時においても
優れた特性を示す合成樹脂製のテープガイドを提供せん
とするものである。(5) In view of the above-mentioned problems, the present invention aims to provide a tape guide made of synthetic resin that exhibits excellent characteristics even at low temperatures and low humidity.
本発明によるテープガイドは、導電性に優れ且つ高潤滑
性を有する合成樹脂製複合材料を素材として射出成形に
より形成されていることにより、低温、低湿時に帯電現
象が生じず、磁気テープのテープガイドへの吸着が起こ
らないようにしたものである。The tape guide according to the present invention is formed by injection molding using a synthetic resin composite material with excellent conductivity and high lubricity, so that charging phenomenon does not occur at low temperatures and low humidity, and the tape guide of the magnetic tape This prevents adsorption to occur.
ス」Ｌ鮭
以下、第１図に示した一実施例に基づき本発明の詳細な
説明すれば、１は円筒形のテープガイドであって、これ
は、ポリアセタール、ポリアミド。Below, the present invention will be described in detail based on an embodiment shown in FIG. 1. Reference numeral 1 denotes a cylindrical tape guide made of polyacetal or polyamide.
ポリエステル、高密度ポリエチレン２変性オレフイン樹
脂 ポリフェニレンスルフィド等の熱可塑性合成樹脂
をマトリックスとして導電性付与性充填荊と磁気テープ
ベースフィルムに対する潤滑性を向上させ得る潤滑剤と
を複合して成る合成樹脂複合材料の射出成形により形成
されている。A synthetic resin composite material made of a matrix of thermoplastic synthetic resin such as polyester, high-density polyethylene di-modified olefin resin, polyphenylene sulfide, and a conductive filler and a lubricant that can improve the lubricity of the magnetic tape base film. It is formed by injection molding.
本発明によるテープガイドは上述の如（構成されており
、その材料が導電性に優れ且つ高潤滑性を有する合成樹
脂複合材料であるので、低温、低温時においても磁気テ
ープとの摩擦による帯ｔ＊象は生じず１、磁気テープの
テープガイドへの吸着が起こらなかった。従って、テー
プテンシランの増加もないので、テープデツキの制御機
構が働いてテープの送行を停止せしめることはなかった
。The tape guide according to the present invention is constructed as described above, and since the material is a synthetic resin composite material with excellent conductivity and high lubricity, even at low temperatures, the band t due to friction with the magnetic tape *No error occurred.1, the magnetic tape did not stick to the tape guide.Therefore, there was no increase in tape tensile strength, so the tape deck control mechanism did not operate to stop tape feeding.
又、本発明テープガイドは、合成…脂復合材料を成形し
て成るものであるので、合成樹脂単体を成形したものよ
りは表面形状が安定し、表面形状を精度良く成形するこ
とができた。Moreover, since the tape guide of the present invention is made by molding a synthetic resin polymeric material, the surface shape is more stable than that of a product molded from a single synthetic resin, and the surface shape can be molded with high precision.
第２図は第二の実ａｈｌＰｌを示しており、これは外表
面に多数の微小突起を設けて成る円筒形のテープガイド
であって、上記第一の実施例と同じ合成…脂復合材料を
成形して成るものであるので、表面形状が安定し、多数
の微小突起を有する表面形状を精度良く成形することが
できた。FIG. 2 shows a second actual ahlPl, which is a cylindrical tape guide with a large number of microprotrusions on its outer surface, and is made of the same synthetic resin polymeric material as in the first embodiment. Since it is formed by molding, the surface shape is stable, and a surface shape having a large number of microprotrusions can be molded with high precision.
第３図は第三の実施例を示しており、これは外表面に軸
線と平行な多数の突条１ｂを設けて成ろ円筒形のテープ
ガイドである。第４図は第四の実施例を示しており、こ
れは外表面に円周方向の多数の突条１ｃを設けて成る円
筒形のテープガイドである。そして、これらはいずれも
上記第一の実施例と同じ合成樹脂複合材料の成形により
形成されており、低温、低湿時において優れた特性を示
すと共に、上述の如き表面形状を精度良く成形すること
ができた。FIG. 3 shows a third embodiment, which is a cylindrical tape guide having a large number of protrusions 1b parallel to the axis on its outer surface. FIG. 4 shows a fourth embodiment, which is a cylindrical tape guide having a large number of circumferential protrusions 1c on its outer surface. All of these are formed by molding the same synthetic resin composite material as in the first embodiment, and exhibit excellent properties at low temperatures and low humidity, and are capable of forming the surface shape described above with high precision. did it.
下記表は、単なる円筒形又はその外表面にローレットを
設けたテープガイドであうでその成分の配合を変化させ
たものの摩擦係数、抵抗値５テ一プ擦傷性１巻取時間に
ついての実験結果を示しており、この表から本真テープ
ガイドが金属製ガイド（表中ＳＵＳで表示されている）
と殆ど代わらない優れた特性を有していることが明らか
である。The table below shows the experimental results regarding the coefficient of friction, resistance value of 5 tapes, scratch resistance and winding time of tape guides with a simple cylindrical shape or with knurling on the outer surface, and with varying compositions of components. From this table, the Honshin Tape Guide is a metal guide (indicated by SUS in the table).
It is clear that it has excellent properties that are almost the same.
尚、これに使用した磁気テープは、ＶＨＳ１２０分スタ
ンダードテープであった。The magnetic tape used here was a VHS 120 minute standard tape.
ＩＬ旦」Ｌ艮
上述の如く、本発明によるテープガイドは、低温、低湿
時においても優れた特性を示すという実用上重要な利点
をＷしている。As mentioned above, the tape guide according to the present invention has the practically important advantage of exhibiting excellent characteristics even at low temperatures and low humidity.
第１図は本発明によるテープガイド′の一実施例の一部
破断正面図、第２図は第二の実施例の正面図、第３図及
び第４図は夫々第三及び第四の実施例の正面図である。
１・・・・テープガイド、１ａ・・・・微小突起、ｔｂ
。
ＩＣ・・・・突条。
才１図
５ｊ−２図FIG. 1 is a partially cutaway front view of one embodiment of the tape guide' according to the present invention, FIG. 2 is a front view of the second embodiment, and FIGS. 3 and 4 are views of the third and fourth embodiments, respectively. FIG. 3 is a front view of an example. 1...Tape guide, 1a...Minute protrusion, tb
. IC...projection. Figure 1 Figure 5j-2
Claims (4)
合材料の射出成形により形成されて成る磁気テープカセ
ット用テープガイド。(1) A tape guide for a magnetic tape cassette formed by injection molding of a synthetic resin composite material having excellent conductivity and high lubricity.
けたことを特徴とする特許請求の範囲（１）に記載の磁
気テープカセット用テープガイド。(2) The tape guide for a magnetic tape cassette according to claim (1), which is formed into a cylindrical shape and has a large number of minute protrusions on its outer surface.
突条を設けたことを特徴とする特許請求の範囲（１）に
記載の磁気テープカセット用テープガイド。(3) The tape guide for a magnetic tape cassette according to claim (1), which is formed into a cylindrical shape and has a large number of protrusions parallel to the axis on the outer surface.
けたことを特徴とする特許請求の範囲（１）に記載の磁
気テープカセット用テープガイド。(4) The tape guide for a magnetic tape cassette according to claim (1), which is formed into a cylindrical shape and has circumferentially extending protrusions on its outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25089384A JPS61129783A (en) | 1984-11-28 | 1984-11-28 | Tape guide for magnetic tape cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25089384A JPS61129783A (en) | 1984-11-28 | 1984-11-28 | Tape guide for magnetic tape cassette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61129783A true JPS61129783A (en) | 1986-06-17 |
Family
ID=17214588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25089384A Pending JPS61129783A (en) | 1984-11-28 | 1984-11-28 | Tape guide for magnetic tape cassette |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61129783A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0223538A2 (en) * | 1985-11-13 | 1987-05-27 | Minnesota Mining And Manufacturing Company | Plastic supply tape guide for videocassette |
| EP0322853A2 (en) * | 1987-12-28 | 1989-07-05 | Dai-Ichi Seiko Kabushiki Kaisha | Guide post for magnetic tapes |
| JPH01315088A (en) * | 1988-06-14 | 1989-12-20 | Sanshin Kogyo Kk | Production of tape guide for recording/reproducing device |
| US5074451A (en) * | 1989-12-20 | 1991-12-24 | Minnesota Mining And Manufacturing Company | Plastic tape guide for videocassette |
| JPH0472377U (en) * | 1990-10-29 | 1992-06-25 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5476692A (en) * | 1977-12-01 | 1979-06-19 | Sony Corp | Unsaturated polyester resin composition |
| JPS57208679A (en) * | 1981-06-18 | 1982-12-21 | Tdk Corp | Tape guide of magnetic tape cartridge and its production |
-
1984
- 1984-11-28 JP JP25089384A patent/JPS61129783A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5476692A (en) * | 1977-12-01 | 1979-06-19 | Sony Corp | Unsaturated polyester resin composition |
| JPS57208679A (en) * | 1981-06-18 | 1982-12-21 | Tdk Corp | Tape guide of magnetic tape cartridge and its production |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0223538A2 (en) * | 1985-11-13 | 1987-05-27 | Minnesota Mining And Manufacturing Company | Plastic supply tape guide for videocassette |
| EP0322853A2 (en) * | 1987-12-28 | 1989-07-05 | Dai-Ichi Seiko Kabushiki Kaisha | Guide post for magnetic tapes |
| JPH01315088A (en) * | 1988-06-14 | 1989-12-20 | Sanshin Kogyo Kk | Production of tape guide for recording/reproducing device |
| US5074451A (en) * | 1989-12-20 | 1991-12-24 | Minnesota Mining And Manufacturing Company | Plastic tape guide for videocassette |
| JPH0472377U (en) * | 1990-10-29 | 1992-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5139862A (en) | Pultruded electronic device | |
| US4276575A (en) | Tape guide for high-speed tape transport apparatus | |
| JPH1167408A (en) | Electric component containing magnetic particle | |
| KR880011821A (en) | Conductive resin composition and molded article thereof | |
| JPS61129783A (en) | Tape guide for magnetic tape cassette | |
| US4635877A (en) | Magnetic tape cassette | |
| US3423233A (en) | Magnetic recording element | |
| KR880002212B1 (en) | Tape guide system for magnetic tapes | |
| US3791608A (en) | Friction sheet for a magnetic tape recording cassette | |
| EP0188338B1 (en) | Leaf-spring roller guide | |
| US4935833A (en) | Guide members for magnetic tape cassette | |
| JPH07118172B2 (en) | Resin tape guide | |
| JPS58137173A (en) | Tape cassette case | |
| EP0217157A1 (en) | Tape guide for VTR tape cassette | |
| US4934577A (en) | Guide post for magnetic tapes | |
| US5383077A (en) | Tape cassette having tape guides made of polyethylene | |
| ES444455A1 (en) | Low friction bearing compositions | |
| JP2763597B2 (en) | Magnetic head unit | |
| AU582316B2 (en) | Easily-slidable polyarylene thioether film and process for producing the same | |
| JPH035111A (en) | Forming method of optical memory disk hub | |
| US3042841A (en) | Encased magnetic core | |
| WO1996008820A1 (en) | One-piece capstan for a tape cartridge | |
| WO1982001896A1 (en) | Sliding member | |
| JPH04167255A (en) | Guide post for transporting magnetic tape | |
| JPH05314599A (en) | Magnetic drum and formation thereof |