JPS6159205A - Power transmitting apparatus - Google Patents
Power transmitting apparatusInfo
- Publication number
- JPS6159205A JPS6159205A JP18171384A JP18171384A JPS6159205A JP S6159205 A JPS6159205 A JP S6159205A JP 18171384 A JP18171384 A JP 18171384A JP 18171384 A JP18171384 A JP 18171384A JP S6159205 A JPS6159205 A JP S6159205A
- Authority
- JP
- Japan
- Prior art keywords
- power transmission
- transmission device
- transmission means
- information signal
- displacement
- 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
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Control Of Conveyors (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ワイヤやベルトなどの可撓性を有する動力伝
達手段によって駆動側の口伝、変位などを従動側に伝え
る動力伝達装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a power transmission device that transmits word of mouth, displacement, etc. from a driving side to a driven side by means of flexible power transmission means such as wires and belts.
従来例の構成とその問題点
従来、ワイヤやベルトなどの可撓性を有する動力伝達手
段によって駆動側の回転、変位などを従動側に伝える動
力伝達装置において、その回転量や変位量の検出は、駆
動側あるいは従動側に回転量または変位量を検出する工
／コーダ等の検出手段を設けて行なわれている。すなわ
ち、工／コーダ等の検出手段は装置の基本構成とは別に
追加設置されており、動力伝達装置を含む装置全体が複
雑になっている。また、上記検出手段は高価なものであ
り、高精度な位置決めをする場合、高分解能の上記検出
手段が用いられ、そのコストはかなり高くなるので上記
装置全体のコストもそれに伴い高くなっている。Conventional configurations and their problems Conventionally, in power transmission devices that transmit rotation, displacement, etc. on the driving side to the driven side using flexible power transmission means such as wires and belts, it is difficult to detect the amount of rotation and displacement. , a detection means such as a machine/coder for detecting the amount of rotation or displacement is provided on the driving side or the driven side. In other words, the detection means such as the encoder/coder is additionally installed in addition to the basic configuration of the device, making the entire device including the power transmission device complicated. Further, the detection means is expensive, and when performing highly accurate positioning, the detection means with high resolution is used, which increases the cost considerably, and the cost of the entire apparatus increases accordingly.
発明の目的
本発明の目的は、ワイヤやベルトなどの可撓性を有する
動力伝達手段に位置情報信号を付加し、簡素で低コスト
な動力伝達装置を提供するものである。OBJECTS OF THE INVENTION An object of the present invention is to provide a simple and low-cost power transmission device by adding a position information signal to a flexible power transmission means such as a wire or belt.
発明の構成
本発明の動力伝達装置は、ワイヤやベルトなどの可撓性
を有する動力伝達手段に駆動・従動間の回転量あるいは
変位量を検出する手段を設けたものであり、これによシ
動力伝達装置は簡素、低コストとなるものである。Structure of the Invention The power transmission device of the present invention is a device in which a flexible power transmission means such as a wire or a belt is provided with means for detecting the amount of rotation or displacement between the driving and driven parts. The power transmission device is simple and low cost.
実施例の説明
以下、本発明の実施例について図面を参照しながら説明
する。第１図は本発明の一実施例に係る動力伝達装置の
構成図である。本動力伝達装置は動力伝達手段１ｏ、駆
動輪１６、従動輪１８、検出部１４、処理回路２０よシ
構成される。第１図すに示すように、駆動輪１６と従動
輪１８は動力伝達手段１０によって連結されており、動
力伝達手段１０は同図すに示すようにその表面長手方向
に磁性媒体を塗布またはめっきし、さらに該磁性媒体表
面を保護するために皮膜を付けている。検出部１４は分
解能を上げ、また移動方向を判別するため２つの磁気ヘ
ッドから成り、該磁気ヘッドをＡピッチだけ位相をずら
せて設けている。その様子を第１図ａに示す。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a power transmission device according to an embodiment of the present invention. This power transmission device includes a power transmission means 1o, a driving wheel 16, a driven wheel 18, a detection section 14, and a processing circuit 20. As shown in Figure 1, the driving wheel 16 and the driven wheel 18 are connected by a power transmission means 10, and the power transmission means 10 has a magnetic medium coated or plated on its surface in the longitudinal direction. Furthermore, a film is applied to protect the surface of the magnetic medium. The detection unit 14 is composed of two magnetic heads in order to increase the resolution and to discriminate the direction of movement, and the magnetic heads are provided with a phase shift of A pitch. The situation is shown in Figure 1a.
また、第１図すの処理回路２０はシュミットトリガ−回
路２ｏｚ 、立上り検出回路２０ｂ 、ゲート回路２ｏ
Ｃから成り、第２図のように構成されている。Further, the processing circuit 20 shown in FIG. 1 includes a Schmitt trigger circuit 2oz, a rise detection circuit 20b, and a gate circuit 2o.
C, and is configured as shown in Figure 2.
以上のように構成された本実施例の動力伝達装置につい
て以下その動作を説明する。駆動輪１６の回転は動力伝
達手段１ｏを介して従動輪１８に伝えられ、従動輪１８
に回転変位が与えられる。The operation of the power transmission device of this embodiment configured as described above will be explained below. The rotation of the driving wheel 16 is transmitted to the driven wheel 18 via the power transmission means 1o.
A rotational displacement is given to .
この時、検出部１４は動力伝達手段１ｏの位置情報信号
を９０’の位相差をもつ進み信号、遅れ信号の２信号と
して検出する。進み信号、遅れ信号はまず第２図の７ユ
ミツトトリガ一回路により矩形波に整形され、第３図の
１００に示すようになる。次に、該２信号および該２信
号を反転した２信号の立上シを検出する。この時の波形
は第３図の２００に示すものとなる。続いて、第２図の
ゲート回路により信号は第３図の３００に示すように変
化し、その結果１分解能が４倍の信号が得られ、動力伝
達手段１０がＸ方向へ移動した時はＸ方向のみ、またＸ
方向へ移動した時はＸ方向のみ４倍の信号が得られ、移
動方向の判別が可能となる。動力伝達手段１０の変位量
、変位方向から駆動輪１６あるいは従動輪１８０回転量
、回転方向への変換は簡単な数学的手法で行なわれ、容
易に該回転量１回転方向を知ることができる。At this time, the detection unit 14 detects the position information signal of the power transmission means 1o as two signals, a lead signal and a delay signal, with a phase difference of 90'. The lead signal and the delay signal are first shaped into rectangular waves by the 7 unit trigger circuit shown in FIG. 2, as shown at 100 in FIG. 3. Next, the rising edges of the two signals and the two signals obtained by inverting the two signals are detected. The waveform at this time is shown at 200 in FIG. Subsequently, the signal changes as shown at 300 in FIG. 3 by the gate circuit in FIG. Direction only, also X
When moving in the direction, a signal four times as large is obtained only in the X direction, making it possible to determine the direction of movement. Conversion from the displacement amount and displacement direction of the power transmission means 10 to the rotation amount and rotation direction of the driving wheel 16 or the driven wheel 180 is performed by a simple mathematical method, and the direction of one rotation of the rotation amount can be easily determined.
次に１本発明の他の実施例について図面を参照しながら
説明する。Next, another embodiment of the present invention will be described with reference to the drawings.
第４図は本発明の他の実施例に係る動力伝達装置の構成
図を示すものである。本動力伝達装置は動力伝達手段２
２．駆動輪４０、従動輪４２、検出部３６．処理回路３
８よシ構成される。第４図すに示すように駆動輪４０と
従動輪４２は動力伝達手段２２によって連結されている
。FIG. 4 shows a configuration diagram of a power transmission device according to another embodiment of the present invention. This power transmission device is a power transmission means 2
2. Drive wheel 40, driven wheel 42, detection unit 36. Processing circuit 3
It consists of 8. As shown in FIG. 4, a driving wheel 40 and a driven wheel 42 are connected by a power transmission means 22.
また、第４図ａに示すように、動力伝達手段２２は、そ
の表面長手方向に反射率の異なるパターン２４を形成し
、さらに該動力伝達手段２２の表面を保護するために透
明な皮膜２６を付けている。検出部３６はインデックス
スケール２８、発光部３２、受光部３４から成る。発光
部３２．受光部３４にはそれぞれ２つの光源、受光体が
あり。Further, as shown in FIG. 4a, the power transmitting means 22 has a pattern 24 with different reflectances formed in the longitudinal direction of its surface, and a transparent film 26 to protect the surface of the power transmitting means 22. I'm wearing it. The detection section 36 includes an index scale 28, a light emitting section 32, and a light receiving section 34. Light emitting section 32. Each of the light receiving sections 34 has two light sources and a light receiving body.
動力伝達手段２２の幅方向に並んで設置している。They are installed side by side in the width direction of the power transmission means 22.
インデックススケール２８は動力伝達手段２２に施Ｌｆ
ｃパターン２４と同ピツチのパターン３ｏを透明基板上
にもち、第４図Ｃに示すように該パターンを２つに分け
、２本の光の位相が９０’ずれるようにしである。また
、処理回路３８は、シュガツトリミット回路、立上り検
出回路、ゲート回路から成シ、その構成は前実施例と同
様である。The index scale 28 is applied to the power transmission means 22 Lf
A pattern 3o having the same pitch as the c pattern 24 is held on a transparent substrate, and the pattern is divided into two as shown in FIG. 4C so that the phases of the two lights are shifted by 90'. Further, the processing circuit 38 is composed of a sugar limit circuit, a rising edge detection circuit, and a gate circuit, and its configuration is the same as that of the previous embodiment.
以上のように構成された本実施例の動力伝達装置につい
て以下その動作を説明する。駆動輪４゜の回転は動力伝
達装置２２を介して従動輪４２に伝えられる。この時、
検出部３６において、発光部３２からの２本の光はイン
デックススケール２８を透過し、動力伝達手段２２で反
則し、さらにインデックススケール２８を透過して受光
部に達する。インデックススケール２８を透過後、２本
の光には９０００位相差が生じ、処理回路３８によって
矩形波に整形され、さらに分解能は４倍になυ移動方向
判別が可能となる。この時の波形変化の様子は第３図ど
同様であり１本実施例も前実施例同様、動力伝達手段２
２の変位量、変位方向から駆動輪４０あるいは従動輪４
２０回転量。The operation of the power transmission device of this embodiment configured as described above will be explained below. Rotation of the driving wheel 4° is transmitted to the driven wheel 42 via the power transmission device 22. At this time,
In the detection section 36, the two lights from the light emitting section 32 pass through the index scale 28, are reflected by the power transmission means 22, and further pass through the index scale 28 to reach the light receiving section. After passing through the index scale 28, a 9000 phase difference occurs between the two lights, which is shaped into a rectangular wave by the processing circuit 38, and the resolution is quadrupled, making it possible to determine the direction of υ movement. The state of the waveform change at this time is the same as that shown in FIG.
Drive wheel 40 or driven wheel 4 from the displacement amount and displacement direction of 2
20 rotations.
回転方向を容易に知ることができる。The direction of rotation can be easily determined.
以上のように、上記２つの実施例によれば動力伝達手段
に磁気的あるいは光学的位置情報信号を付加し、それぞ
れ磁気的あるいは光学的検出器により位置情報信号を読
み取れば駆動側あるいは従動側の変位量１回転量を検出
することができ、従来のようにエンコーダ等の検出器を
外部から付加することに比べ、装置の簡素化を図ること
ができる。As described above, according to the above two embodiments, if a magnetic or optical position information signal is added to the power transmission means and the position information signal is read by a magnetic or optical detector, the driving side or the driven side The amount of displacement per revolution can be detected, and the device can be simplified compared to adding a detector such as an encoder from the outside as in the past.
なお、上記の実施例では動力伝達手段の表面に磁性媒体
あるいは反射率の異なるパターンを形成し、磁気ヘッド
あるいは反射型光検出手段を用いたが、該動力伝達手段
の表面に形成されるのは磁性媒体あるいは反’４．ｆ率
の異なるパターンに限られるものではなく、また検出器
として磁気ヘッドあるいは反射型光検出手段に限定され
るものではなく、回転量、変位量を検出し得る情報信号
と検出器の組み合せであれば何でもよい。In the above embodiments, a magnetic medium or patterns with different reflectances were formed on the surface of the power transmission means, and a magnetic head or reflective light detection means was used. Magnetic media or anti-'4. The detector is not limited to patterns with different f-factors, nor is the detector limited to a magnetic head or reflective light detection means, but may be a combination of an information signal and a detector that can detect the amount of rotation or displacement. Anything is fine.
発明の効果
以上の説明から明らかなように、本発明はワイヤやベル
トなどの可撓性を有する動力伝達手段に位置情報信号を
付加し、駆動側−従動側間の回転量または変位量と検出
できるように構成しているので、改めてエンコーダ、ポ
テンショメータ等の専用の検出器を必要としない。従っ
てこの効果によυ動力伝達装置は簡素化され、低コスト
化が実現できる。Effects of the Invention As is clear from the above explanation, the present invention adds a position information signal to a flexible power transmission means such as a wire or belt, and detects the amount of rotation or displacement between the driving side and the driven side. Since it is configured so that it can be used, there is no need for a dedicated detector such as an encoder or potentiometer. Therefore, due to this effect, the υ power transmission device can be simplified and cost reduction can be realized.
第１図は本発明の一実施例による動力伝達装置の構成図
、第２図は処理回路のブロック図、第３図は信号の変化
の様子を表わす波形図、第４図は動力伝達手段の表面に
反射率の異なるパターンを形成した動力伝達装置の構成
図である。
１０・・・・・・動力伝達手段、１２・・・・・・磁気
ヘッド。
１４・・・・・・検出部、１６・・・・・・駆動輪、１
８・・・・・・従動輪、２０・・・・・・処理回路。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図Fig. 1 is a block diagram of a power transmission device according to an embodiment of the present invention, Fig. 2 is a block diagram of a processing circuit, Fig. 3 is a waveform diagram showing how signals change, and Fig. 4 is a diagram of a power transmission means. FIG. 2 is a configuration diagram of a power transmission device in which patterns with different reflectances are formed on the surface. 10...Power transmission means, 12...Magnetic head. 14...detection unit, 16...drive wheel, 1
8... Driven wheel, 20... Processing circuit. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure
Claims (3)
可撓性を有する動力伝達手段、上記動力伝達手段の長手
方向に形成された複数個の識別可能な情報信号、および
上記情報信号を接触または非接触で検出する検出手段と
を設けたことを特徴とする動力伝達装置。(1) A flexible power transmission means for transmitting rotation, displacement, etc. of the driving side to the driven side, a plurality of identifiable information signals formed in the longitudinal direction of the power transmission means, and the information signal What is claimed is: 1. A power transmission device comprising: a detection means for detecting contact or non-contact.
面に磁性媒体を塗布またはめっきし、複数極のＮ、Ｓ極
を磁化記録させると共に上記検出手段として磁気ヘッド
を用いたことを特徴とする特許請求の範囲第１項記載の
動力伝達装置。(2) A magnetic medium is coated or plated on the surface of a flexible power transmission means as an information signal, and a plurality of north and south poles are magnetized and recorded, and a magnetic head is used as the detection means. A power transmission device according to claim 1.
面に反射率または透過率の異なる複数個のパターンを形
成し、上記検出手段を受光部−発光部からなる反射型ま
たは透過型光検出手段としたことを特徴とする特許請求
の範囲第１項記載の動力伝達装置。(3) A plurality of patterns with different reflectances or transmittances are formed on the surface of a flexible power transmission means as an information signal, and the detection means is a reflection type or transmission type light detection consisting of a light receiving part and a light emitting part. The power transmission device according to claim 1, characterized in that the power transmission device is a means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18171384A JPS6159205A (en) | 1984-08-31 | 1984-08-31 | Power transmitting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18171384A JPS6159205A (en) | 1984-08-31 | 1984-08-31 | Power transmitting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6159205A true JPS6159205A (en) | 1986-03-26 |
Family
ID=16105553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18171384A Pending JPS6159205A (en) | 1984-08-31 | 1984-08-31 | Power transmitting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6159205A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236839A (en) * | 1991-01-10 | 1992-08-25 | Fuji Photo Optical Co Ltd | Rotation transmission device with encoder |
| JPH05177174A (en) * | 1991-12-27 | 1993-07-20 | Sharp Corp | Cleaning device |
| CN1065316C (en) * | 1994-11-24 | 2001-05-02 | 日本电装株式会社 | Starter with planetary gear speed reducing mechanism |
-
1984
- 1984-08-31 JP JP18171384A patent/JPS6159205A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236839A (en) * | 1991-01-10 | 1992-08-25 | Fuji Photo Optical Co Ltd | Rotation transmission device with encoder |
| JPH05177174A (en) * | 1991-12-27 | 1993-07-20 | Sharp Corp | Cleaning device |
| CN1065316C (en) * | 1994-11-24 | 2001-05-02 | 日本电装株式会社 | Starter with planetary gear speed reducing mechanism |
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