JPH01253858A - Guide roller - Google Patents

Guide roller

Info

Publication number
JPH01253858A
JPH01253858A JP63081868A JP8186888A JPH01253858A JP H01253858 A JPH01253858 A JP H01253858A JP 63081868 A JP63081868 A JP 63081868A JP 8186888 A JP8186888 A JP 8186888A JP H01253858 A JPH01253858 A JP H01253858A
Authority
JP
Japan
Prior art keywords
roller
guide roller
shaft
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.)
Granted
Application number
JP63081868A
Other languages
Japanese (ja)
Other versions
JP2687294B2 (en
Inventor
Hiroyuki Kanbe
博之 神戸
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.)
Nippon Chemi Con Corp
Original Assignee
Nippon Chemi Con Corp
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 Nippon Chemi Con Corp filed Critical Nippon Chemi Con Corp
Priority to JP63081868A priority Critical patent/JP2687294B2/en
Publication of JPH01253858A publication Critical patent/JPH01253858A/en
Application granted granted Critical
Publication of JP2687294B2 publication Critical patent/JP2687294B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

PURPOSE:To sufficiently absorb the vibration of a tape which is moved by bringing to contact with a tape guide surface and to obtain the smooth rotation of a roller by coating both end surfaces of a metallic cylinder and an inner cylinder by a resin and forming the rotary roller. CONSTITUTION:Both end surfaces 12 and 13 of the rotary roller 11 consisting of the metallic cylinder having the tape guide surface of a guide roller, and the inner cylinder are coated by the resin 14 having self lubricating ability. A flange 7 having a slitting 6 is inserted into one end of a shaft 1, and is fixed, whereby the side of the flange 7 is set to face downward. Next, the roller 11 is inserted into and is movably fitted with the shaft, and a hollow flange 8 is inserted with pressure above the shaft and is fixed in a position where the rotation of the roller 11 is smooth, whereby the rotary mechanism 10 of the guide roller is constituted. A retaining ring 4 is inserted into the shaft 1 with pressure, a driver is inserted into the slitting 6 so as to rotate the whole guide roller, and a male screw 3 is fastened, whereby a height with respect to the metallic base of the guide roller is adjusted.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は例えば、ビデオテープレコーダ等において、
添接して移送される磁気テープの位置規制に適したガイ
ドローラに関するものである。
[Detailed Description of the Invention] [Industrial Field of Application] The present invention can be used, for example, in a video tape recorder, etc.
The present invention relates to a guide roller suitable for regulating the position of a magnetic tape that is being transported along with it.

〔従来の技術〕[Conventional technology]

この種のガイドローラの従来例を、第2図の部分断面図
を用いて説明する。
A conventional example of this type of guide roller will be explained using a partial cross-sectional view of FIG.

第2図において、1は、シャフトでガイドローラの回転
機構2及び外周に雄ネジ3が形成されたトメワ4が同軸
に嵌合されるが、このトメワ4は、ガイドローラの回転
機構2を組み立てた後に取付けられる。5は、ガイドロ
ーラのテープ案内面を受は持つ筒状の回転ローラで樹脂
で形成されている。ガイドローラの回転機構2の組み立
ては、すり割り6を有するフランジ7をシャフト1の一
端に挿通して固定し、フランジ7側を下にする。そして
、回転ローラ5をシャフトlに挿通して遊嵌し、その上
に中空のフランジ8を圧太し、回転ローラ5の回転が滑
らかな位置で固定してガイドローラの回転機構2を構成
する。その後、治具を用いてトメワ4は、シャツl−1
に圧入される。図示しないがガイドローラは例えばビデ
オテープレコーダの金属製ヘースに所定角度で立設され
て使用される。この場合、金属製ベースにはトメワ4に
設けられた雄ネジ3と螺合する雌ネジのネジ穴が設けら
れており、フランジ7に設けたすり割り6にマイナスド
ライバを差し込んでガイドローラ全体を回転させ、トメ
ワ4に設けられた誰ネジ3を締付けることによりガイド
ローラの金属製ベースに対する高さ力q周整される。
In FIG. 2, 1 is a shaft, and a guide roller rotation mechanism 2 and a tow 4 having a male screw 3 formed on the outer periphery are coaxially fitted together. installed after installation. Reference numeral 5 denotes a cylindrical rotating roller made of resin and having a support for the tape guide surface of the guide roller. To assemble the guide roller rotation mechanism 2, a flange 7 having a slot 6 is inserted into one end of the shaft 1 and fixed, with the flange 7 side facing down. Then, the rotating roller 5 is inserted and loosely fitted into the shaft l, a hollow flange 8 is compressed on top of the rotating roller 5, and the rotating roller 5 is fixed at a position where the rotation is smooth, thereby forming the guide roller rotating mechanism 2. . After that, Tomewa 4 uses a jig to remove the shirt l-1.
is press-fitted into the Although not shown, a guide roller is used, for example, by standing upright at a predetermined angle on a metal head of a video tape recorder. In this case, the metal base is provided with a female screw hole that engages with the male screw 3 provided on the tomewa 4, and a flathead screwdriver is inserted into the slot 6 provided on the flange 7 to remove the entire guide roller. By rotating the guide roller and tightening the screw 3 provided on the handle 4, the height force q of the guide roller relative to the metal base is adjusted.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

ガイドローラのテープ案内面に磁気テープを添接して移
送すると回転ローラが略一定の速度で回転する。この回
転ローラの定速運動は、移送中の磁気テープに生してい
る振動を吸収する働きがあり、回転ローラの慣性モーメ
ントが大きいほど効果がある。
When a magnetic tape is attached to the tape guide surface of the guide roller and transferred, the rotating roller rotates at a substantially constant speed. This constant speed motion of the rotating roller has the function of absorbing vibrations occurring in the magnetic tape being transferred, and the greater the moment of inertia of the rotating roller, the more effective it is.

従来のガイドローラでは回転ローラが樹脂のみで形成さ
れているために、回転ローラの慣性モーメントを大きく
しようとすると径が太くなり、ガイドローラが大型化し
てしまうという問題があった。
In conventional guide rollers, since the rotating roller is formed only of resin, there is a problem in that if the moment of inertia of the rotating roller is increased, the diameter becomes thicker, resulting in an increase in the size of the guide roller.

〔課題を解決するための手段〕[Means to solve the problem]

この発明は、周面にテープが添接して移送される金属筒
の両端面および内筒を樹脂にて被覆して回転ローラを形
成すると共に、中空の第1、第2のフランジの間に回転
ローラを挾んで単一のシャフトに順次挿通してガイドロ
ーラを構成したことを第1の特徴とする。また、上記両
フランジおよびシャフトと接触する回転ローラとの接触
面には上記樹脂が介在されるようにガイドローラを構成
したことを第2の特徴とする。
In this invention, a rotating roller is formed by coating both end surfaces and an inner cylinder of a metal cylinder to be transported with a tape attached to the circumferential surface with resin, and a rotating roller is formed between hollow first and second flanges. The first feature is that the guide roller is constructed by sandwiching the rollers and sequentially inserting them into a single shaft. A second feature is that the guide roller is configured such that the resin is interposed on the contact surface with the rotary roller that contacts both the flanges and the shaft.

〔作   用〕[For production]

この発明のガイドローラでは、金属筒の両端面および内
筒を樹脂にて被覆して回転ローラを形成したので、樹脂
のみで回転ローラを形成した場合に比べて、十分に細い
径の回転ローうでありながら、テープ案内面を添接して
移送される磁気テープの振動は十分に吸収される。また
、回転ローラがフランジおよびシャフトと接触する面に
は樹脂が介在されるので、回転ローラは円滑な回転をし
1、樹脂のみで形成した従来のものの長所をt員なうこ
とはない。
In the guide roller of this invention, since the rotating roller is formed by coating both end surfaces of the metal cylinder and the inner cylinder with resin, the rotating roller has a sufficiently narrow diameter compared to a case where the rotating roller is formed only from resin. However, the vibrations of the magnetic tape being transported with the tape guide surface attached are sufficiently absorbed. In addition, since resin is interposed on the surface of the rotating roller that contacts the flange and shaft, the rotating roller rotates smoothly, without overcoming the advantages of the conventional roller made only of resin.

〔実 施 例〕〔Example〕

第1図は、この発明の一実施例を示す部分断面図である
。以下、この発明を第1図に示す実施例に従って説明す
る。第1図において第2図と同じ符号は同じものを示し
ている。
FIG. 1 is a partial sectional view showing an embodiment of the present invention. The present invention will be explained below according to the embodiment shown in FIG. In FIG. 1, the same reference numerals as in FIG. 2 indicate the same things.

lは、シャフトで第2図で説明したのと同様にガイドロ
ーラの回転機構10及び外周に誰ネジ3が形成されたト
メワ4が同軸に嵌合されるが、このトメワ4は、ガイド
ローラの回転機構10を組み立てた後に取付けられる。
1 is a shaft, and as explained in FIG. It is attached after assembling the rotation mechanism 10.

11は、ガイドローラのテープ案内面を受は持つ金属筒
からなる回転ローラで、その両端面12.13および内
筒は自己潤滑性のある樹脂14(例えば、ポリアセタル
系の樹脂)で被覆されている。ガイドローラの回転機構
10の組み立ては、第2図で説明したのと同様にすり割
り6を有するフランジ7をシャフト1の一端に挿通して
固定し、フランジ7側を下にする。そして、回転ローラ
11をシャフト1に挿通して遊嵌し、その上に中空のフ
ランジ8を圧入し、回転ローラ11の回転が滑らかな位
πで固定してガイドローラの回転機構10を構成する。
Reference numeral 11 denotes a rotary roller made of a metal cylinder having a tape guiding surface of the guide roller, and its both end surfaces 12 and 13 and the inner cylinder are coated with a self-lubricating resin 14 (for example, polyacetal resin). There is. To assemble the guide roller rotation mechanism 10, the flange 7 having the slot 6 is inserted into one end of the shaft 1 and fixed, with the flange 7 side facing down, in the same manner as described in FIG. Then, the rotating roller 11 is inserted and loosely fitted into the shaft 1, the hollow flange 8 is press-fitted onto it, and the rotating roller 11 is fixed at π such that rotation is smooth, thereby forming the guide roller rotation mechanism 10. .

この場合も第2図で説明したのと同様に治具を用いてト
メワ4は、シャットlに圧入される。以下、第2図で説
明したのと同様にすり割り6にマイナスドライバを差し
込んでガイドローラ全体を回転させ、トメワ4に設けら
れた雄ネジ3を締付けることによりガイドローラの金属
製ベースに対する高さが調整される。
In this case as well, the stopper 4 is press-fitted into the shut l using a jig in the same manner as explained in FIG. Hereinafter, the height of the guide roller relative to the metal base is adjusted by inserting a flathead screwdriver into the slot 6 to rotate the entire guide roller and tightening the male screw 3 provided on the handle 4 in the same manner as explained in Fig. 2. is adjusted.

〔発明の効果〕〔Effect of the invention〕

以上説明したとおり、この発明のガイドローラでは、樹
脂に比べて十分に比重の大きい金属の筒を用い、この金
属筒の両端面および内筒を樹脂で被覆して回転ローラを
形成したので、樹脂のみで回転ローラを形成した場合に
比べて、十分に細い径の回転ローうでありながら慣性モ
ーメントを大きくでき、テープ案内面を添接して移送さ
れる磁気テープの振動は十分に吸収される。また、回転
ローラがフランジおよびシャフトと接触する面には樹脂
が介在されるので、回転ローラは円滑な回転をし、樹脂
のみで形成した従来のものの長所を損なうことがない等
優れた効果を奏する。
As explained above, in the guide roller of the present invention, a rotating roller is formed by using a metal cylinder whose specific gravity is sufficiently higher than that of resin, and coating both end surfaces and the inner cylinder of this metal cylinder with resin. Compared to a case where the rotating roller is formed only by a rotating roller, the moment of inertia can be increased even though the rotating roller has a sufficiently small diameter, and vibrations of the magnetic tape transferred with the tape guide surface attached are sufficiently absorbed. In addition, since resin is interposed on the surface where the rotating roller contacts the flange and shaft, the rotating roller rotates smoothly and has excellent effects such as not detracting from the advantages of conventional rollers made only of resin. .

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

第1図は、この発明の一実施例を示すガイド1コ−ラの
部分断面図、第2図は、従来例を示す部分断面図である
。 1・・シャフト、  7.8・・フランジ、10・・回
転ローラ、11・・金属筒、14・・樹脂。 特  許  出  願  人 日本ケミコン株式会社 第1図
FIG. 1 is a partial sectional view of a guide 1 caller showing an embodiment of the present invention, and FIG. 2 is a partial sectional view showing a conventional example. 1...Shaft, 7.8...Flange, 10...Rotating roller, 11...Metal tube, 14...Resin. Patent application Nippon Chemi-Con Co., Ltd. Figure 1

Claims (2)

【特許請求の範囲】[Claims] (1)周面にテープが添接して移送される金属筒の両端
面および内筒を樹脂にて被覆して回転ローラを形成する
と共に、中空の第1、第2のフランジの間に前記回転ロ
ーラを挟んで単一のシャフトに順次挿通して構成したこ
とを特徴とするガイドローラ。
(1) A rotating roller is formed by coating both end surfaces and the inner tube of a metal tube to be transferred with a tape attached to the circumferential surface with resin, and the rotating roller is formed between the hollow first and second flanges. A guide roller characterized by being constructed by sequentially inserting the rollers into a single shaft with the rollers sandwiched therebetween.
(2)前記両フランジおよび前記シャフトと接触する前
記回転ローラとの接触面には前記樹脂が介在されること
を特徴とする請求項1記載のガイドローラ。
(2) The guide roller according to claim 1, wherein the resin is interposed on a contact surface of the rotary roller that contacts both the flanges and the shaft.
JP63081868A 1988-04-02 1988-04-02 Guide roller Expired - Fee Related JP2687294B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63081868A JP2687294B2 (en) 1988-04-02 1988-04-02 Guide roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63081868A JP2687294B2 (en) 1988-04-02 1988-04-02 Guide roller

Publications (2)

Publication Number Publication Date
JPH01253858A true JPH01253858A (en) 1989-10-11
JP2687294B2 JP2687294B2 (en) 1997-12-08

Family

ID=13758446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63081868A Expired - Fee Related JP2687294B2 (en) 1988-04-02 1988-04-02 Guide roller

Country Status (1)

Country Link
JP (1) JP2687294B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155566A (en) * 1982-03-09 1983-09-16 Matsushita Electric Ind Co Ltd Tape guide roll

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155566A (en) * 1982-03-09 1983-09-16 Matsushita Electric Ind Co Ltd Tape guide roll

Also Published As

Publication number Publication date
JP2687294B2 (en) 1997-12-08

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