JPH04103397U - capstan motor - Google Patents
capstan motorInfo
- Publication number
- JPH04103397U JPH04103397U JP506391U JP506391U JPH04103397U JP H04103397 U JPH04103397 U JP H04103397U JP 506391 U JP506391 U JP 506391U JP 506391 U JP506391 U JP 506391U JP H04103397 U JPH04103397 U JP H04103397U
- Authority
- JP
- Japan
- Prior art keywords
- capstan
- attached
- motor
- shaft
- capstan shaft
- 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
- 238000012986 modification Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
(57)【要約】 (修正有)
【目的】 ピンチローラが押しつけられたときにキャプ
スタン軸がモータ取付面に対し垂直となるようにする。
【構成】 無負荷時にはキャプスタン軸4が従動回転体
5側に向けて所定角度傾斜するようにモータ8を被取付
部材3に取付け、キャプスタン軸4に従動回転体5が押
しつけられたときに撓んで理想回転軸6と一致するよう
にしている。
(57) [Summary] (with modifications) [Purpose] To make the capstan shaft perpendicular to the motor mounting surface when the pinch roller is pressed. [Structure] The motor 8 is attached to the attached member 3 so that the capstan shaft 4 is inclined at a predetermined angle toward the driven rotating body 5 side when there is no load, and when the driven rotating body 5 is pressed against the capstan shaft 4. It is bent so that it coincides with the ideal rotation axis 6.
Description
【0001】0001
本考案は、キャプスタンモータに関する。更に詳述すると本考案は、例えばビ デオテープレコーダ(以下VTRと略称する)等のテープ走行系に用いられるキ ャプスタンモータの取付構造に関する。 The present invention relates to a capstan motor. To be more specific, the present invention can be applied, for example, to A key used in tape running systems such as video tape recorders (hereinafter abbreviated as VTR). This article relates to the mounting structure of a capstan motor.
【0002】0002
VTR用のキャプスタモータ27は、通常、図4に示すように、モータが取付 けられようとする相手側部材(本明細書では被取付部材という)例えばシャーシ 20に対し軸受ホルダ21と一体の取付部22,22,22を利用してタップね じ23等で固定されている。取付部22,22,22は例えば図5に示すように 、軸受ホルダ21の周面から120°置きに径方向に突出するようにして軸受ホ ルダ21と一体に成形されている。取付部22,22,22にはタップねじ23 をねじ込む取付穴24,24,24が設けられ、その取付穴24,24,24の 周囲の面25,25,25が他の部分よりも僅かに軸方向に突き出されている。 そして、この取付面25,25,25が被取付部材20に当てられた状態で被取 付部材20にねじ止めするように設けられている。そこで、3箇所の取付部22 ,22,22の取付面25,25,25は面精度を出すように精密加工され一定 の高さを確保するように設けられている。したがって、軸受ホルダ21から突出 するキャプスタン軸26はキャプスタンモータ27を被取付部材20に固定する のと同時に被取付部材を貫通して被取付部材20の面に対し垂直に設置されてい る。尚、符号28は制御回路を実装した回路基板である。 The capstan motor 27 for VTR is usually installed as shown in Figure 4. A mating member (referred to as an attached member in this specification) that is about to be kicked, for example, a chassis 20, tap using the mounting parts 22, 22, 22 integrated with the bearing holder 21. It is fixed with the same 23 etc. The mounting parts 22, 22, 22 are, for example, as shown in FIG. , bearing holders projecting in the radial direction from the circumferential surface of the bearing holder 21 at every 120 degrees. It is molded integrally with the router 21. The mounting parts 22, 22, 22 have tap screws 23. Mounting holes 24, 24, 24 are provided for screwing the The surrounding surfaces 25, 25, 25 are slightly more axially protruded than the other parts. Then, with the mounting surfaces 25, 25, 25 in contact with the member 20 to be mounted, It is provided so as to be screwed onto the attachment member 20. Therefore, the three mounting parts 22 , 22, 22 mounting surfaces 25, 25, 25 are precisely machined to ensure surface accuracy and are constant. It is installed to ensure the height of the Therefore, it protrudes from the bearing holder 21. The capstan shaft 26 fixes the capstan motor 27 to the attached member 20. At the same time, it penetrates the attached member and is installed perpendicular to the surface of the attached member 20. Ru. Note that the reference numeral 28 is a circuit board on which a control circuit is mounted.
【0003】0003
しかしながら、キャプスタン軸26にピンチローラ(図示省略)が押し当てら れた際、このピンチローラからの荷重によってキャプスタン軸26が撓んで傾く 問題がある。このキャプスタン軸26の傾きはテープ走行系路長やテープ張力に 変化を来たすことから、ワウフラッターの悪化や画質の劣化を招く虞がある。ま た、傾いたキャプスタン軸26上をテープが走行する場合、テープの縁をテープ ガイドポストのフランジや回転ドラムのリード等に押しつけることとなって傷付 ける虞がある。 However, the pinch roller (not shown) is pressed against the capstan shaft 26. When the capstan shaft 26 is bent and tilted due to the load from this pinch roller, There's a problem. The inclination of this capstan shaft 26 depends on the tape running path length and tape tension. This may lead to worsening of wow and flutter and deterioration of image quality. Ma In addition, if the tape runs on the tilted capstan shaft 26, the edge of the tape should be It may cause damage if pressed against the flange of the guide post or the reed of the rotating drum. There is a risk of it falling.
【0004】 本考案は、ピンチローラが圧着されたときにキャプスタン軸がモータ取付面に 対し垂直を維持する構造のキャプスタンモータを提供することを目的とする。0004 This invention allows the capstan shaft to touch the motor mounting surface when the pinch roller is crimped. An object of the present invention is to provide a capstan motor having a structure that maintains the vertical direction.
【0005】[0005]
かかる目的を達成するため、本考案は、モータ本体を被取付部材に取付け、こ の被取付部材からキャプスタン軸を突出させると共にこのキャプスタン軸にピン チローラ等の従動回転体を圧接させるキャプスタンモータにおいて、前記キャプ スタン軸を理想回転軸に対し無負荷時には上記従動回転体の圧接方向に対向する 方向に所定角度傾斜させて前記モータを前記被取付部材に取付けるようにしてい る。 In order to achieve this purpose, the present invention attaches the motor body to the member to which it is attached. The capstan shaft protrudes from the member to which it is attached, and a pin is attached to this capstan shaft. In a capstan motor that presses a driven rotating body such as a chiller, the cap The stand shaft is opposed to the ideal rotation axis in the direction of pressure contact of the driven rotating body when no load is applied. The motor is attached to the attached member at a predetermined angle in a direction. Ru.
【0006】[0006]
したがって、キャプスタン軸にピンチローラが押し当てられて負荷が加えられ たとき、その負荷によってキャプスタン軸がピンチローラの圧接方向に撓み、キ ャプスタン軸が本来求められる理想の位置即ちモータ取付面に対し垂直な位置に 矯正される。 Therefore, the pinch roller is pressed against the capstan shaft and a load is applied. When the load is applied, the capstan shaft bends in the direction of pressure contact with the pinch roller, causing the capstan to bend. The spindle is in the ideal position that it is originally required, that is, perpendicular to the motor mounting surface. be corrected.
【0007】[0007]
以下、本考案の構成を図面に示す実施例に基づいて詳細に説明する。 EMBODIMENT OF THE INVENTION Hereinafter, the structure of this invention will be explained in detail based on the Example shown in drawing.
【0008】 キャプスタンモータ8は図示していないが、例えばステータコイルを巻回した ステータコアとキャプスタン軸4に固定されたロータマグネットとから成り、ス テータコアと制御回路を実装した回路基板とが軸受ホルダ1の周囲の取付部2に 固着され、キャプスタン軸4が軸受ホルダ1に回転自在に支持されている。この キャプスタンモータは、キャプスタン軸4を支持する軸受ホルダ1と一体に形成 された取付部2,2,2によってVTRシャーシ等の被取付部材3に固定され、 被取付部材3からキャプスタン軸4を突出させると共にこのキャプスタン軸4に ピンチローラ等の従動回転体5を圧接させるようにしている。そして、キャプス タン軸4は、キャプスタン軸4の理想とする回転中心軸(本明細書では理想回転 軸という)6に対し無負荷時には従動回転体5の圧接方向に対向する方向即ち従 動回転体5の側に向けて所定角度傾斜させてモータを被取付部材3に取付けて成 る。ここで、所定角度とは従動回転体5の圧接によって加えられる負荷によって キャプスタン軸4が撓む角度θに相当する。[0008] Although the capstan motor 8 is not shown, for example, a stator coil is wound around the capstan motor 8. Consists of a stator core and a rotor magnet fixed to the capstan shaft 4. A circuit board on which the theta core and a control circuit are mounted is attached to the mounting part 2 around the bearing holder 1. The capstan shaft 4 is rotatably supported by the bearing holder 1. this The capstan motor is integrally formed with a bearing holder 1 that supports the capstan shaft 4. It is fixed to an attached member 3 such as a VTR chassis by the attached attachment parts 2, 2, 2, The capstan shaft 4 is made to protrude from the attached member 3, and the capstan shaft 4 is A driven rotating body 5 such as a pinch roller is brought into pressure contact. And Caps The tongue shaft 4 is an ideal rotation center axis of the capstan shaft 4 (in this specification, an ideal rotation center axis). When no load is applied to the axis (referred to as the shaft) 6, the direction opposite to the direction of pressure contact of the driven rotor 5, that is, the direction The motor is attached to the attached member 3 by tilting it at a predetermined angle toward the dynamic rotating body 5. Ru. Here, the predetermined angle is determined by the load applied by pressing the driven rotating body 5. This corresponds to the angle θ at which the capstan shaft 4 is bent.
【0009】 例えば図1に示すように、軸受ホルダ1と一体に形成される3カ所の取付部2 ,2,2のうち、1カ所の高さを他の2カ所の高さよりも低くし、この高さの低 い取付部2が従動回転体5の反対側に向くようにしてキャプスタンモータ8を被 取付部材3に固定するようにしている。取付部2,2,2は例えば120°置き に軸受ホルダ1の周面から径方向に突出しており、高さが低い取付部2がキャプ スタン軸4と従動回転体5の軸とを結ぶ直線上でかつキャプスタン軸4と従動回 転体5の軸との間の外に位置するように設置して固定することが好ましい。高い 取付部2,2と低い取付部2の高さの差ΔHは、取付部2,2,2に固着手段例 えばタップねじ9,9,9をねじ込んで取付部2,2,2を被取付部材3に固定 した取付状態において傾斜して設置され、そのキャプスタン軸4の取付時の回転 中心軸6の傾きθが従動回転体の押しつけ圧力によってテープ走行の理想位置例 えば被取付部材3に対し90°±10´程度になるような量が好ましい。[0009] For example, as shown in FIG. 1, three mounting parts 2 are formed integrally with the bearing holder 1. , 2, 2, the height of one place is lower than the height of the other two places, and this height is lowered. Mount the capstan motor 8 so that the mounting part 2 faces the opposite side of the driven rotating body 5. It is fixed to the mounting member 3. Mounting parts 2, 2, 2 are placed at 120 degrees, for example. The mounting portion 2, which protrudes radially from the circumferential surface of the bearing holder 1 and has a low height, is attached to the cap. On the straight line connecting the stun shaft 4 and the axis of the driven rotor 5, and on the straight line connecting the stun shaft 4 and the axis of the driven rotor 5, and It is preferable to install and fix it so that it is located outside between the axis of the rolling body 5. expensive The height difference ΔH between the mounting parts 2, 2 and the lower mounting part 2 is an example of the means for fixing to the mounting parts 2, 2, 2. For example, screw in the tap screws 9, 9, 9 to fix the mounting parts 2, 2, 2 to the member to be mounted 3. The rotation of the capstan shaft 4 during installation is The inclination θ of the central axis 6 is an example of the ideal position for tape travel due to the pressing pressure of the driven rotor. For example, it is preferable that the angle is about 90°±10' with respect to the attached member 3.
【0010】 以上のように構成したので、キャプスタンモータ8を被取付部材3の所定位置 の装着穴10に嵌め込み、キャプスタン軸4及び軸受ホルダ1を被取付部材3に 貫通させた後、取付部2,2,2の上方からビス止めすれば、取付部2,2,2 の高さが一部異なるため、キャプスタン軸4はモータ取付面に対して傾く。これ によって、キャプスタン軸4は従動回転体の圧着前には図2に示すように、理想 回転軸6に対しθだけ従動回転体側に傾斜することとなる。この状態において従 動回転体5が押しつけられると従動回転体5から加えられる側圧によってキャプ スタン軸4が圧接方向に撓み理想回転軸6上に矯正される。これによって、テー プは走行系の理想位置を通過することとなる。0010 With the above configuration, the capstan motor 8 can be placed at a predetermined position on the attached member 3. into the mounting hole 10, and attach the capstan shaft 4 and bearing holder 1 to the mounting member 3. After passing through, if screws are secured from above the mounting parts 2, 2, 2, the mounting parts 2, 2, 2 Since the heights of the capstan shaft 4 are partially different, the capstan shaft 4 is inclined with respect to the motor mounting surface. this Therefore, the capstan shaft 4 is set to the ideal position as shown in Fig. 2 before the driven rotor is crimped. It is inclined toward the driven rotor by θ with respect to the rotating shaft 6. In this state, When the movable rotor 5 is pressed, the side pressure applied from the driven rotor 5 causes the cap to The stand shaft 4 is bent in the pressure contact direction and corrected onto the ideal rotation shaft 6. This allows the The robot will pass through the ideal position of the traveling system.
【0011】 尚、上述の実施例は本考案の好適な実施の一例ではあるがこれに限定されるも のではなく本考案の要旨を逸脱しない範囲において種々変形実施可能である。例 えば、本実施例では3カ所の取付部2,2,2の1カ所を低くすることによって キャプスタン軸4を被取付部材3に対し傾斜させて取付けるようにしているが、 特にこれに限定されるものではなく3カ所の取付部2,2,2の1カ所を他の2 カ所に対して高くすることによっても同様の効果が得られる。また、本実施例で は軸受ホルダ1と一体の取付部2,2,2の高さを一部変えることによってキャ プスタン軸4の取付角度を調整するようにしているが、軸受ホルダ1や取付部2 ,2,2とは別個のスペーサ材(図示省略)を取付部2,2,2と被取付部材3 との間に挿入することによって取付部2,2,2の高さに実質的に段差を設け、 キャプスタン軸4を所定角度で傾斜させるようにしても良い。また、取付部2, 2,2は一般的な3カ所のものについて説明したが、特にこれに限定されるもの ではなく4個所あるいはそれ以上の取付部を有する軸受ホルダ1であっても実施 可能であり、その場合にはキャプスタン軸4が従動回転体5の方向に向けて所定 角度だけ傾斜するだけの高さの差ΔHを選択された取付部に設定することが必要 である。[0011] The above-mentioned embodiment is an example of preferred implementation of the present invention, but is not limited thereto. Rather, various modifications can be made without departing from the gist of the present invention. example For example, in this embodiment, by lowering one of the three mounting parts 2, 2, 2, Although the capstan shaft 4 is installed at an angle with respect to the member to be installed 3, It is not particularly limited to this, but one of the three mounting parts 2, 2, 2 is attached to the other two. A similar effect can be obtained by increasing the height in some places. In addition, in this example By partially changing the height of the mounting parts 2, 2, 2, which are integrated with the bearing holder 1, Although the mounting angle of the Pushtan shaft 4 is adjusted, the bearing holder 1 and the mounting part 2 , 2, 2 and a separate spacer material (not shown) between the mounting parts 2, 2, 2 and the mounted member 3. By inserting between The capstan shaft 4 may be inclined at a predetermined angle. In addition, the mounting part 2, 2.2 describes three general locations, but is particularly limited to these locations. Even if the bearing holder 1 has four or more mounting points instead of possible, and in that case, the capstan shaft 4 should be oriented in the direction of the driven rotating body 5. It is necessary to set a height difference ΔH that is sufficient to tilt the selected mounting part by an angle. It is.
【0012】0012
以上の説明より明らかなように、本考案はキャプスタン軸を理想回転軸に対し 無負荷ときには従動回転体の圧接方向に対向する方向に所定角度傾斜させてモー タを被取付部材に取付けるようにしたので、あらかじめピンチローラ等の従動回 転体側に向けて傾いているキャプスタン軸が従動回転体の押し当てによって負荷 が加えられたとき、その負荷によってキャプスタン軸が圧接方向に撓みキャプス タン軸が理想回転軸の位置、即ち被取付面に対しほぼ垂直な位置に矯正される。 したがって、本考案によると、ピンチローラのような従動回転体が圧接された状 態において始めてテープ走行系が安定し、例えばVTRとして安定したワウフラ ッタや画質が得られるし、またテープへの影響(傷・負荷)も改善される。 As is clear from the above explanation, the present invention allows the capstan shaft to be aligned with the ideal rotation axis. When there is no load, the motor is tilted at a predetermined angle in the direction opposite to the direction of pressure contact of the driven rotor. Since the roller is attached to the member to be attached, the driven rotation of the pinch roller etc. The capstan shaft, which is tilted toward the rolling body, is loaded by the driven rotating body. When the load is applied, the capstan shaft is bent in the pressure direction The tongue shaft is corrected to the position of the ideal rotation axis, that is, to a position substantially perpendicular to the mounting surface. Therefore, according to the present invention, a driven rotating body such as a pinch roller is pressed into contact. The tape running system becomes stable for the first time in this state, and for example, the tape running system becomes stable as a VTR You can obtain better image quality and image quality, and the effects on the tape (scratches and load) are also improved.
【図1】本考案のキャプスタンモータの一実施例を示す
側面図で、軸受ホルダと取付部の関係を示す。FIG. 1 is a side view showing an embodiment of a capstan motor of the present invention, showing the relationship between a bearing holder and a mounting portion.
【図2】本考案のキャプスタンモータの取付状態を示す
概略説明図である。FIG. 2 is a schematic explanatory diagram showing the installation state of the capstan motor of the present invention.
【図3】図2のキャプスタン軸にピンチローラが圧着さ
れた状態を示す概略説明図である。3 is a schematic explanatory diagram showing a state in which a pinch roller is pressed onto the capstan shaft in FIG. 2; FIG.
【図4】従来のキャプスタンモータの構造を示す側面図
である。FIG. 4 is a side view showing the structure of a conventional capstan motor.
【図5】軸受ホルダと取付部材の構成を示す斜視図であ
る。FIG. 5 is a perspective view showing the configuration of a bearing holder and a mounting member.
1 軸受ホルダ 2 取付部 3 被取付部材 4 キャプスタン軸 5 従動回転体(ピンチローラ) 6 理想回転軸 7 取付状態のままの現実の回転軸 8 キャプスタンモータ 1 Bearing holder 2 Mounting part 3 Mounted member 4 Capstan shaft 5 Driven rotating body (pinch roller) 6 Ideal rotation axis 7 Actual rotating shaft as installed 8 Capstan motor
Claims (1)
被取付部材からキャプスタン軸を突出させると共にこの
キャプスタン軸にピンチローラ等の従動回転体を圧接さ
せるキャプスタンモータにおいて、前記キャプスタン軸
を理想回転軸に対し無負荷時には上記従動回転体の圧接
方向に対向する方向に所定角度傾斜させて前記モータを
前記被取付部材に取付けてなるキャプスタンモータ。1. A capstan motor in which a motor body is attached to a member to be attached, a capstan shaft is made to protrude from the member to be attached, and a driven rotating body such as a pinch roller is pressed against the capstan shaft. A capstan motor, wherein the motor is attached to the attached member by tilting the motor at a predetermined angle in a direction opposite to the pressure contact direction of the driven rotating body when there is no load on the ideal rotating shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP506391U JPH04103397U (en) | 1991-01-18 | 1991-01-18 | capstan motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP506391U JPH04103397U (en) | 1991-01-18 | 1991-01-18 | capstan motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04103397U true JPH04103397U (en) | 1992-09-07 |
Family
ID=31735328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP506391U Pending JPH04103397U (en) | 1991-01-18 | 1991-01-18 | capstan motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04103397U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61261845A (en) * | 1985-05-16 | 1986-11-19 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
-
1991
- 1991-01-18 JP JP506391U patent/JPH04103397U/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61261845A (en) * | 1985-05-16 | 1986-11-19 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
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