JPS62245584A - Magnetic tape cassette pad - Google Patents

Magnetic tape cassette pad

Info

Publication number
JPS62245584A
JPS62245584A JP8877086A JP8877086A JPS62245584A JP S62245584 A JPS62245584 A JP S62245584A JP 8877086 A JP8877086 A JP 8877086A JP 8877086 A JP8877086 A JP 8877086A JP S62245584 A JPS62245584 A JP S62245584A
Authority
JP
Japan
Prior art keywords
magnetic tape
hole
tape cassette
pad
pressing member
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
Application number
JP8877086A
Other languages
Japanese (ja)
Inventor
Kengo Oishi
健吾 大石
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP8877086A priority Critical patent/JPS62245584A/en
Publication of JPS62245584A publication Critical patent/JPS62245584A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent the deflection abrasion of the surface of a pressing member abutting on a head by forming the pressing member of a pad of a synthetic resin in which a through hole and a slit part are integrally formed. CONSTITUTION:An elastic member 3 is provided in a cassette 3 and the pressing member 4 integrally formed substantially in a cubic form of the synthetic resin is disposed substantially at the center thereof. The through hole 4a of a rectangular shape in section is formed in a right angle direction to a direction to which the tape 2 of the pressing member 4 runs. The slit part 4c communicating with the through hole 4a is formed substantially at the center of the cross section of a surface abutting against the tape 2 and a lubricant layer 5 is formed on the abutting surface 4b. Accordingly, the slit part 4c is formed at a position where the pressing member 4 is opposed to the gap part of a magnetic head, and the tape 2 is not pressed to the gap part of the head.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は磁気テープカセットに収納された磁気テープを
磁気ヘッドに押圧するための磁気テープカセット用パッ
ドに関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic tape cassette pad for pressing a magnetic tape housed in a magnetic tape cassette against a magnetic head.

(従来技術) テープレコーダにより情報の記録再生を行なう磁気テー
プは、磁気テープカセット内に内蔵された1対のハブに
巻回されており、このカセットの一側面に形成された開
口部を介してパッドにより前記テープレコーダに設けら
れた磁気ヘッドに押圧されるようになっている。このパ
ッドの押圧体は金属で形成された帯状の弾性部材に装着
されており、従来は兎や羊などの毛を起毛したフェルト
材で形成されていた。このフェルト材は天然#JA雑で
形成されているため密度がばらつき、磁気テープの磁気
ヘッドへの押圧状態が不良となったり、磁気テープとの
摩擦係数がばらついたり、さらにはフェルト材のm緒が
脱落してドロップアウトの原因となったりする問題があ
った。特に磁気ヘツドに形成されたギャップ部に当接す
る部分には偏摩耗が発生しやすく、この偏摩耗の発生を
防止するためにはこの部分の押圧を除去することが望ま
しい。しかしながら従来のフェルト材で形成された押圧
体では、ギャップ部に対向する部分のフェルト材を除去
する加工が困難であるという問題があった。
(Prior Art) The magnetic tape on which information is recorded and reproduced by a tape recorder is wound around a pair of hubs built into a magnetic tape cassette. The pad is pressed against a magnetic head provided on the tape recorder. The pressing body of this pad is attached to a band-shaped elastic member made of metal, and has conventionally been made of felt material made from brushed rabbit or sheep wool. Since this felt material is made of natural #JA coarse material, the density may vary, resulting in poor pressing of the magnetic tape against the magnetic head, variation in the coefficient of friction with the magnetic tape, and even the poor quality of the felt material. There was a problem in which some parts could fall off and cause dropouts. In particular, uneven wear is likely to occur in the portion that abuts the gap formed in the magnetic head, and in order to prevent the occurrence of uneven wear, it is desirable to remove the pressure on this portion. However, the conventional pressing body made of felt material has a problem in that it is difficult to remove the felt material in the portion facing the gap.

(発明の目的) 本発明は上記事情に鑑みてなされたものであり、磁気テ
ープを介して磁気ヘッドに当接する押圧体の面の偏摩耗
を防1トすることのできる磁気テープカセット用パッド
を提供することを目的とする。
(Object of the Invention) The present invention has been made in view of the above circumstances, and provides a pad for a magnetic tape cassette that can prevent uneven wear on the surface of the pressing body that contacts the magnetic head via the magnetic tape. The purpose is to provide.

(発明の構成) 本発明に係る磁気テープカセット用パッドは、磁気テー
プの走行方向に対し直角の方向に貫通孔が形成され、か
つ前記磁気テープとの当接面のほぼ中央にこの貫通孔に
平行に貫通孔に連通するスリッI・部が形成された合成
樹脂よりなる抑圧体と、この押圧体が一体に成形固着さ
れ両端が前記磁気テープカセットに支承された弾性部材
とにより構成したことを特徴とするものである。
(Structure of the Invention) A pad for a magnetic tape cassette according to the present invention has a through hole formed in a direction perpendicular to the running direction of the magnetic tape, and the through hole is formed approximately in the center of the contact surface with the magnetic tape. The pressing body is composed of a synthetic resin suppressing body formed with a slit I that communicates with the through hole in parallel, and an elastic member whose both ends are supported by the magnetic tape cassette. This is a characteristic feature.

上記の構成によると、磁気ヘッドに形成されたギャップ
部に対向する部分のパッドの押圧体にはスリット部が形
成されており、しかも磁気テープの走行方向に対し直角
の方向に貫通孔が形成されているので、押五体は磁気テ
ープを介して磁気ヘッドのギャップ部には当接すること
なく、かつ当接面はギャップ部から遠ざかる方向に逃げ
るので、押圧体のギヤツブ部エツジによる偏摩耗を防ぐ
ことができる。この貫通孔及びスリット部の形成は押圧
体の材質を合成樹脂とすることで容易となる。
According to the above configuration, a slit portion is formed in the pressing body of the pad in the portion facing the gap portion formed in the magnetic head, and a through hole is formed in a direction perpendicular to the running direction of the magnetic tape. Therefore, the pusher body does not come into contact with the gap part of the magnetic head via the magnetic tape, and the contact surface escapes in the direction away from the gap part, so uneven wear due to the edges of the gear part of the pusher body can be prevented. Can be done. The formation of the through holes and slit portions is facilitated by using synthetic resin as the material of the pressing body.

(実 施 例) 以下、本発明に係る磁気テープカセット用パッドの一実
施例を図面を参照して説明する。
(Embodiment) Hereinafter, one embodiment of the magnetic tape cassette pad according to the present invention will be described with reference to the drawings.

第1図及び第2図に本発明の一実施例を示す。An embodiment of the present invention is shown in FIGS. 1 and 2. FIG.

第2図において、磁気テープカセット1内には図示せぬ
1対のハブに巻回された磁気テープ2が収納されており
、この磁気テープカセット1の一側面に形成された開口
部1aを介して磁気テープ2が外部に露出し、テープレ
コーダ側に設けられた図示せぬ磁気ヘッドに当接可能に
なっている。磁気テープカセット1内には両端がこの磁
気テープカセッ1へ1に支持され燐青銅などで帯状に形
成された弾性部材3が設けられており、この弾性部材3
のほぼ中央にはポリエチレンなどの合成樹脂でほぼ立方
体状に一体成形された押圧体4が設けられている。この
抑圧体4の前記磁気テープ2が走行する方向に対して直
角の方向には断面矩形状の貫通孔4aが形成されており
、磁気テープ2に当接する而4bの幅方向のほぼ中央に
は、この貫通孔4aと平行にかつこの貫通孔4aに連通
ずるスリット部4Cが形成されている。また押圧体4の
磁気テープ当接面4bには潤滑剤層5が形成されている
。この潤滑剤層5を形成する手段は潤滑剤が含浸された
被膜を貼付してもよいし、または潤滑剤を塗布してもよ
い。また被験を貼付する場合には前記スリット部4aを
含めて磁気−プ当接面4bの全面に貼付してもよい。
In FIG. 2, a magnetic tape 2 wound around a pair of hubs (not shown) is stored in a magnetic tape cassette 1. The magnetic tape 2 is exposed to the outside and can come into contact with a magnetic head (not shown) provided on the tape recorder side. Inside the magnetic tape cassette 1, there is provided an elastic member 3 which is supported at both ends by the magnetic tape cassette 1 and is formed into a band shape of phosphor bronze or the like.
A pressing body 4 integrally molded in a substantially cubic shape from a synthetic resin such as polyethylene is provided approximately in the center of the press body. A through hole 4a having a rectangular cross section is formed in the suppressor 4 in a direction perpendicular to the direction in which the magnetic tape 2 runs, and a through hole 4b that contacts the magnetic tape 2 is provided approximately at the widthwise center thereof. A slit portion 4C is formed parallel to and communicating with the through hole 4a. Further, a lubricant layer 5 is formed on the magnetic tape contacting surface 4b of the pressing body 4. The lubricant layer 5 may be formed by applying a film impregnated with a lubricant or by applying a lubricant. Further, when the test material is to be pasted, it may be pasted to the entire surface of the magnetic tape contact surface 4b, including the slit portion 4a.

次に本実施例の作用及び効果を説明する。押圧体4が磁
気ヘッドのギャップ部に対向する位置にはスリット部4
Cが形成されているため、磁気テープ2は磁気ヘッドの
ギャップ部に押圧されることはない。このため押圧体4
が磁気ヘッドのギャップ部によって部分的に偏摩耗され
ることはない。
Next, the operation and effects of this embodiment will be explained. A slit portion 4 is provided at a position where the pressing body 4 faces the gap portion of the magnetic head.
Since C is formed, the magnetic tape 2 is not pressed against the gap portion of the magnetic head. For this reason, the pressing body 4
The magnetic head is not partially worn unevenly by the gap portion of the magnetic head.

しかも押圧体4の中央には貫通孔4aが形成されていて
、磁気テープ当接部4bは薄肉となっているため、押圧
体4を磁気ヘッドに押圧したときに磁気テープ当接面4
bのスリット部4cが磁気ヘッドのギャップ部から遠去
かる方向に変形するため、偏摩耗防止効果はより大きく
なる。さらに磁気テープ当接部4bには潤滑剤層5が形
成されているため、当接面41の全体の摩耗を低減させ
ることができる。
In addition, a through hole 4a is formed in the center of the pressing body 4, and the magnetic tape contact portion 4b is thin, so that when the pressing body 4 is pressed against the magnetic head, the magnetic tape contact surface 4a is formed.
Since the slit portion 4c of b is deformed in the direction away from the gap portion of the magnetic head, the effect of preventing uneven wear is further increased. Furthermore, since the lubricant layer 5 is formed on the magnetic tape contact portion 4b, wear of the entire contact surface 41 can be reduced.

また押圧体4はポリエチレンなどの合成樹脂で形成され
ているため、貫通孔4a及びスリット部4Gは射出成形
によっても機械加工によっても容易に形成することがで
きる。
Further, since the pressing body 4 is made of synthetic resin such as polyethylene, the through hole 4a and the slit portion 4G can be easily formed by injection molding or machining.

(発明の効果) 上述したように本発明によれば、磁気テープカセット用
パッドの押圧体を貫通孔及びスリット部が一体に形成さ
れた合成樹脂によって構成したので、この押圧体の磁気
テープを介して磁気ヘッドに当接する面の偏摩耗を防止
することができる。
(Effects of the Invention) As described above, according to the present invention, since the pressing body of the magnetic tape cassette pad is made of synthetic resin in which the through hole and the slit portion are integrally formed, the magnetic tape of the pressing body can be This makes it possible to prevent uneven wear on the surface that comes into contact with the magnetic head.

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

第1図は本発明に係る磁気テープカセット用パッドの一
実施例を示す斜視図、 第2図は第1図に示したパッドを装着した磁気テープカ
セットを示す斜視図である。 1・・・磁気テープカセット 1a・・・間口部2・・
・磁気テープ     3・・・弾性部材4・・・押圧
体       4a・・・貫通孔4b・・・磁気テー
プ当接面  4C・・・スリブ1〜部5・・・潤滑剤層
FIG. 1 is a perspective view showing an embodiment of a magnetic tape cassette pad according to the present invention, and FIG. 2 is a perspective view showing a magnetic tape cassette equipped with the pad shown in FIG. 1... Magnetic tape cassette 1a... Frontage part 2...
-Magnetic tape 3...Elastic member 4...Press body 4a...Through hole 4b...Magnetic tape contact surface 4C...Slib 1 to portion 5...Lubricant layer

Claims (2)

【特許請求の範囲】[Claims] (1)一側面に開口部を有する磁気テープカセット内に
収納された磁気テープを前記開口部に対向して設けられ
た磁気ヘッドに押圧する磁気テープカセット用パッドに
おいて、前記磁気テープの走行方向に対し直角の方向に
貫通孔が形成され、かつ前記磁気テープとの当接面のほ
ぼ中央に前記貫通孔に平行にこの貫通孔に連通するスリ
ット部が形成された合成樹脂よりなる押圧体と、この押
圧体が一体に成形固着され両端が前記磁気テープカセッ
トに支承された弾性部材とよりなることを特徴とする磁
気テープカセット用パッド。
(1) A pad for a magnetic tape cassette that presses a magnetic tape housed in a magnetic tape cassette having an opening on one side against a magnetic head provided opposite to the opening, in the running direction of the magnetic tape. a pressing body made of synthetic resin, in which a through hole is formed in a direction perpendicular to the magnetic tape, and a slit portion that is parallel to the through hole and communicates with the through hole is formed approximately in the center of the contact surface with the magnetic tape; A pad for a magnetic tape cassette, characterized in that the pressing body is formed of an elastic member that is integrally molded and fixed, and both ends of which are supported by the magnetic tape cassette.
(2)前記押圧体の磁気テープとの当接面には潤滑剤層
が形成されたことを特徴とする特許請求の範囲第1項記
載の磁気テープカセット用パッド。
(2) A pad for a magnetic tape cassette according to claim 1, wherein a lubricant layer is formed on a surface of the pressing body that comes into contact with the magnetic tape.
JP8877086A 1986-04-17 1986-04-17 Magnetic tape cassette pad Pending JPS62245584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8877086A JPS62245584A (en) 1986-04-17 1986-04-17 Magnetic tape cassette pad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8877086A JPS62245584A (en) 1986-04-17 1986-04-17 Magnetic tape cassette pad

Publications (1)

Publication Number Publication Date
JPS62245584A true JPS62245584A (en) 1987-10-26

Family

ID=13952089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8877086A Pending JPS62245584A (en) 1986-04-17 1986-04-17 Magnetic tape cassette pad

Country Status (1)

Country Link
JP (1) JPS62245584A (en)

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