JPS639868Y2 - - Google Patents
Info
- Publication number
- JPS639868Y2 JPS639868Y2 JP1980108297U JP10829780U JPS639868Y2 JP S639868 Y2 JPS639868 Y2 JP S639868Y2 JP 1980108297 U JP1980108297 U JP 1980108297U JP 10829780 U JP10829780 U JP 10829780U JP S639868 Y2 JPS639868 Y2 JP S639868Y2
- Authority
- JP
- Japan
- Prior art keywords
- reel
- pulley
- pair
- rotational force
- rotation detecting
- 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.)
- Expired
Links
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Description
【考案の詳細な説明】
この考案は、磁気テープの巻取を行う一対のリ
ール受台の回転状態を、共通の回転検出手段で検
出する回転駆動装置の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improvement of a rotation drive device that detects the rotation state of a pair of reel holders for winding a magnetic tape using a common rotation detection means.
従来、この種の回転駆動装置は、種々考えられ
ているが、代表的なものとして一対のリール受台
を駆動する回転駆動機構以外に、リール受台の回
転力により駆動する専用の共通回転検出手段を設
けたものや、一対のリール受台を駆動する回転駆
動機構の揺動回転体中機械的カム機構を利用した
ものがあるが、いずれも、部品点数が相当数にな
り複雑で価格的にもスペース的にも無駄が多いと
いう欠点を有していた。 Conventionally, various types of rotational drive devices have been considered, but typical ones include a rotational drive mechanism that drives a pair of reel holders, as well as a dedicated common rotation detection mechanism that is driven by the rotational force of the reel holders. There are some that use mechanical cam mechanisms in the oscillating rotary body of the rotary drive mechanism that drives a pair of reel holders, but all of them require a considerable number of parts, are complex, and are expensive. However, it also has the disadvantage that it wastes a lot of space.
そこで、この考案は従来の欠点を解消すべくな
されたもので、磁気テープの巻取を行う一対のリ
ール受台と、駆動モータの回転力が伝達され固定
基板に対して回転自在に枢支されたプーリと、該
プーリと同軸上に配され摩擦部材を介して上記プ
ーリの回転力が伝達される駆動回転体と、該駆動
回転体と上記一対のリール受台との間に配置され
上記駆動回転体を中心として首振り可能に支持さ
れその回転力が上記一対のリール受台に対して転
換的に伝達されるようになされたアイドラ機構と
を有すると共に、前記駆動回転体に一体的に配置
された被検出部材と該被検部材に対向して固定基
板に配置された回転検出素子とからなる回転検出
手段を設け、磁気テープが巻取り側となつている
前記リール受台の一方に巻取終了した時前記リー
ル受台が停止したことを前記アイドラ機構を介し
て前記回転検出手段で検出するようにした回転駆
動装置を提供するものである。 Therefore, this idea was devised to eliminate the drawbacks of the conventional technology.It consists of a pair of reel holders for winding the magnetic tape, and a fixed base plate through which the rotational force of the drive motor is transmitted and is rotatably supported. a driving rotary body disposed coaxially with the pulley and to which the rotational force of the pulley is transmitted via a friction member; and a driving rotary body disposed between the driving rotary body and the pair of reel pedestals. an idler mechanism that is swingably supported around the rotating body and whose rotational force is transferred convertively to the pair of reel holders, and is integrally disposed on the driving rotating body. The magnetic tape is wound on one side of the reel pedestal on the winding side. The present invention provides a rotational drive device in which the rotation detecting means detects, via the idler mechanism, that the reel holder has stopped when reeling is completed.
次にこの考案を図示の実施例について詳述す
る。 Next, this invention will be explained in detail with reference to the illustrated embodiment.
第１図において１はシヤーシ等の固定板で、こ
の板１に軸受２を介して回動片３を枢支して備え
るとともに軸受２の内部に駆動回転体を構成する
中軸４を回転可能に受座５で立設し、この中軸４
の下部にフリクシヨンプーリ６を固定する。そし
てこのプーリ６の下面に弾接するフエルト片等の
フリクシヨン部材７を介し駆動プーリ８を同軸的
に備えるとともに、このプーリ８はベルト９を介
して可逆モータ１０に第２図のように連絡する。 In Fig. 1, reference numeral 1 denotes a fixed plate of a chassis, etc., and a rotary piece 3 is pivotally supported on this plate 1 via a bearing 2, and a center shaft 4 constituting a driving rotating body is rotatable inside the bearing 2. Stand upright with catch seat 5, and this center shaft 4
A friction pulley 6 is fixed at the bottom of the . A driving pulley 8 is provided coaxially through a friction member 7 such as a felt piece that comes into elastic contact with the lower surface of the pulley 6, and this pulley 8 is connected to a reversible motor 10 through a belt 9 as shown in FIG.
また前記中軸４の上部に小径ギヤ１１を備え、
このギヤ１１に噛合させて回動片３にアイドラ機
構として機能する平ギヤ１２を枢設するととも
に、この平ギヤ１２は第２図に示すように左右の
リール受台１３Ａ，１３Ｂに回動片３を中軸４を
中心として回動させることにより、交互に転接さ
せて各リール受台１３Ａ，１３Ｂを交互にスリツ
プ回転させ、テイクアツプ作用をさせるように構
成されている。 Further, a small diameter gear 11 is provided on the upper part of the center shaft 4,
A flat gear 12 that meshes with this gear 11 and functions as an idler mechanism is mounted on the rotating piece 3, and the flat gear 12 is attached to the left and right reel holders 13A, 13B on the rotating piece 3 as shown in FIG. 3 is rotated about the center shaft 4, the reel holders 13A and 13B are alternately brought into contact and slip-rotated to perform a take-up action.
さらにプーリ６の下部には受座６Ａを介して被
検出部材として周知の反射板、マグネツトリング
等を固定するとともに、この被検出部材に対向し
てその回転を検出すべき回転検出素子として機能
する周知のフオトセンサ、感磁素子等を固定的に
配置し、被検出部材と回転検出素子とにより回転
検出手段を構成する。 Furthermore, a well-known reflective plate, magnet ring, etc. is fixed to the lower part of the pulley 6 via a seat 6A as a member to be detected, and functions as a rotation detection element that faces the member to be detected and detects its rotation. A well-known photo sensor, magnetic sensing element, etc., are fixedly arranged, and the detected member and the rotation detecting element constitute a rotation detecting means.
本実施例の場合、マグネツトリングＭと感磁素
子１４とによつて回転検出手段が構成されている
ことになる。 In this embodiment, the magnet ring M and the magnetic sensing element 14 constitute rotation detection means.
この回転検出手段によつてプーリ８と摩擦係合
している中軸４及びギヤ１１等で構成された駆動
回転体の回転状態が検出される。 This rotation detecting means detects the rotational state of the drive rotor, which is comprised of the center shaft 4, gear 11, etc., which are in frictional engagement with the pulley 8.
ギヤ１１は平ギヤ１２を介してリール受台１３
Ａ若しくは１３Ｂに転換的に転接されるものであ
るから、リール受台１３Ａ若しくは１３Ｂの回転
状態が即座にこのギヤ１１側に伝達される。 The gear 11 is connected to the reel holder 13 via the flat gear 12.
Since it is in rotational contact with A or 13B, the rotational state of the reel holder 13A or 13B is immediately transmitted to the gear 11 side.
その結果、回転検出手段によつてリール受台１
３Ａ若しくは１３Ｂの回転状態を検出することが
できる。 As a result, the reel holder 1 is detected by the rotation detection means.
The rotation state of 3A or 13B can be detected.
なお、１６はフライホイール１５を有するキヤ
プスタン、１７はキヤプスタン１６に対応したピ
ンチローラで周知のテープレコーダに使用されて
いるものである。 Note that 16 is a capstan having a flywheel 15, and 17 is a pinch roller corresponding to the capstan 16, which is used in a well-known tape recorder.
この考案は以上のように、一対のリール受台１
３Ａ，１３Ｂを転換的に回転させる駆動回転体に
被検出部材を設けたので常にテイクアツプ側のリ
ール台の回転速度を検知することができ、テープ
残存量やテープ終端検知が支障なく行える。 As described above, this invention consists of a pair of reel holders 1
Since the detection member is provided on the drive rotating body that rotates 3A and 13B in a switching manner, the rotational speed of the reel stand on the take-up side can always be detected, and the remaining amount of tape and the end of the tape can be detected without any trouble.
以上述べたようにこの考案によれば、磁気テー
プの巻取を行う一対のリール受台と、駆動モータ
の回転力が伝達され固定基板に対して回転自在に
枢支されたプーリと、該プーリと同軸上に配され
摩擦部材を介して上記プーリの回転力が伝達され
る駆動回転体と、該駆動回転体と上記一対のリー
ル受台との間に配置され上記駆動回転体を中心と
して首振り可能に支持されその回転力が上記一対
のリール受台に対して転換的に伝達されるように
なされたアイドラ機構とを有すると共に、前記駆
動回転体に一体的に配置された被検出部材と該被
検出部材に対向して固定基板に配置された回転検
出素子とからなる回転検出手段を設け、磁気テー
プが巻取り側となつている前記リール受台の一方
に巻取終了した時前記リール受台が停止したこと
を前記アイドラ機構を介して前記回転検出手段で
検出するようにしたもので、既存の回転駆動機構
を有効に利用し、少ない部品点数で一対のリール
受台の回転状態を共通に検出できる。したがつ
て、装置の小型化及び低廉化を達成できる。 As described above, this invention includes a pair of reel holders for winding a magnetic tape, a pulley to which the rotational force of a drive motor is transmitted and rotatably supported on a fixed base plate, and a pulley that is rotatably supported on a fixed substrate. a drive rotor disposed coaxially with the pulley and to which the rotational force of the pulley is transmitted via a friction member; an idler mechanism that is swingably supported and whose rotational force is transferred convertively to the pair of reel holders, and a detected member that is integrally disposed on the drive rotating body; A rotation detecting means consisting of a rotation detecting element disposed on a fixed substrate facing the detected member is provided, and the magnetic tape is mounted on one of the reel pedestals on the winding side when the reel is finished being wound. The stoppage of the reel cradle is detected by the rotation detecting means via the idler mechanism, and the existing rotational drive mechanism is effectively used to detect the rotational state of the pair of reel cradle with a small number of parts. Can be commonly detected. Therefore, the device can be made smaller and less expensive.
図はいずれもこの考案の実施例を示すもので、
第１図は要部の断面図、第２図は平面略図であ
る。
符号の説明、２……軸受、３……回動片、４…
…中軸、６，８……プーリ、１１，１２……ギ
ヤ、１３Ａ，１３Ｂ……リール台（カセツトハブ
受け）、Ｍ……マグネツト、１４……感磁素子。
The drawings show an embodiment of the present invention.
FIG. 1 is a cross-sectional view of the main part, and FIG. 2 is a schematic plan view.
...center shaft, 6, 8...pulleys, 11, 12...gears, 13A, 13B...reel base (cassette hub holder), M...magnet, 14...magnetic sensing element.
Claims (1)
駆動モータの回転力が伝達され固定基板に対して
回転自在に枢支されたプーリと、該プーリと同軸
上に配され摩擦部材を介して上記プーリの回転力
が伝達される駆動回転体と、該駆動回転体と上記
一対のリール受台との間に配置され上記駆動回転
体を中心として首振り可能に支持されその回転力
が上記一対のリール受台に対して転換的に伝達さ
れるようになされたアイドラ機構とを有すると共
に、前記駆動回転体に一体的に配置された被検出
部材と該被検出部材に対向して固定基板に配置さ
れた回転検出素子とからなる回転検出手段を設
け、磁気テープが巻取り側となつている前記リー
ル受台の一方に巻取終了した時前記リール受台が
停止したことを前記アイドラ機構を介して前記回
転検出手段で検出するようにしたことを特徴とす
る回転駆動装置。 a pair of reel holders for winding the magnetic tape;
a pulley to which the rotational force of a drive motor is transmitted and is rotatably supported on a fixed base; a drive rotating body disposed coaxially with the pulley and to which the rotational force of the pulley is transmitted via a friction member; It is disposed between the driving rotary body and the pair of reel pedestals, and is supported so as to be able to swing around the driving rotary body, so that its rotational force is convertively transmitted to the pair of reel pedestals. and a rotation detecting means comprising a detected member disposed integrally with the drive rotating body and a rotation detecting element disposed on a fixed substrate facing the detected member. The rotation detecting means detects, via the idler mechanism, that the reel pedestal has stopped when the magnetic tape has been wound onto one of the reel pedestals on the winding side. Characteristic rotary drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980108297U JPS639868Y2 (en) | 1980-08-01 | 1980-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980108297U JPS639868Y2 (en) | 1980-08-01 | 1980-08-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5733445U JPS5733445U (en) | 1982-02-22 |
| JPS639868Y2 true JPS639868Y2 (en) | 1988-03-24 |
Family
ID=29469558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980108297U Expired JPS639868Y2 (en) | 1980-08-01 | 1980-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS639868Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5018015A (en) * | 1973-06-18 | 1975-02-26 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5067803U (en) * | 1973-10-19 | 1975-06-17 | ||
| JPS5372510U (en) * | 1977-10-11 | 1978-06-17 |
-
1980
- 1980-08-01 JP JP1980108297U patent/JPS639868Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5018015A (en) * | 1973-06-18 | 1975-02-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5733445U (en) | 1982-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS639868Y2 (en) | ||
| US3563493A (en) | End of tape sensing apparatus | |
| US4106725A (en) | Drive unit for magnetic tape-recorders | |
| JPS6144280Y2 (en) | ||
| JPH0355147Y2 (en) | ||
| JPS6336748U (en) | ||
| JP3690627B2 (en) | Recording / playback device | |
| JPH0135301Y2 (en) | ||
| JPS6040984Y2 (en) | Automatic reversing tape player | |
| JPH0636934Y2 (en) | Transfer ribbon supply device for portable copier | |
| JPH0610515Y2 (en) | Automatic recorder mechanism of tape recorder | |
| JPH0444526Y2 (en) | ||
| JPH034987Y2 (en) | ||
| JPH0731376Y2 (en) | Tape terminating device for tape recorder for answering machine | |
| JP2522279B2 (en) | Roll stand rotation detection device | |
| JPS6023787Y2 (en) | Tape running stop detection device for tape recorders, etc. | |
| JPS6246037Y2 (en) | ||
| JPS6128273Y2 (en) | ||
| JPS624925Y2 (en) | ||
| JPS62283439A (en) | Driving device for rotation of reel base | |
| JPH0284141U (en) | ||
| JPS59135648A (en) | Tape recorder | |
| JPH0345206U (en) | ||
| JPS6167565U (en) | ||
| JPS63317958A (en) | Reel base driving device |