JPH0527827B2 - - Google Patents
Info
- Publication number
- JPH0527827B2 JPH0527827B2 JP59196038A JP19603884A JPH0527827B2 JP H0527827 B2 JPH0527827 B2 JP H0527827B2 JP 59196038 A JP59196038 A JP 59196038A JP 19603884 A JP19603884 A JP 19603884A JP H0527827 B2 JPH0527827 B2 JP H0527827B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating body
- convex portion
- detection device
- sliding surface
- resin film
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Ac Motors In General (AREA)
- Optical Transform (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、高分子材料で形成された回転体の挙
動を調べたり或いは更に制御へと応用する為に回
転数を検出することに利用される回転検出装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rotating body that is used to detect the rotational speed in order to investigate the behavior of a rotating body made of a polymeric material or to further apply it to control. This invention relates to a detection device.
従来例の構成とその問題点
第１図及び第２図に従来の回転検出装置を示
す。第１図では回転する多極の永久磁石板１とホ
ール素子により、第２図では回転する多数のスリ
ツトをもつ遮光板３と対向型の受発光素子４によ
り、それぞれ回転体の挙動、回転数が検出されて
いるが、夫々に別部品としての永久磁石板１や遮
光板３を回転体に装着せねばならず、組立作業が
多く、又部品単価そのものも高いという問題を有
していた。Configuration of conventional example and its problems FIGS. 1 and 2 show a conventional rotation detection device. In Fig. 1, a rotating multi-pole permanent magnet plate 1 and a Hall element are used, and in Fig. 2, a rotating light-shielding plate 3 with many slits and a facing light receiving/emitting element 4 are used to determine the behavior of a rotating body and its rotation speed. However, the permanent magnet plate 1 and the light shielding plate 3, which are separate parts, must be attached to the rotating body, which requires a lot of assembly work, and the unit cost of the parts itself is high.
発明の目的
本発明は従来の回転検出装置が抱える組立作業
性の問題を解消し、更に回転体が回転時に問題と
する摩擦によるロスを極小に抑えることができる
回転検出装置を提供することを目的とするもので
ある。Purpose of the Invention It is an object of the present invention to provide a rotation detection device that can solve the assembly workability problems of conventional rotation detection devices and further minimize the loss caused by friction, which is a problem when a rotating body rotates. That is.
発明の構成
本発明は、回転体本体を樹脂製とし、その底部
に円周方向に複数に分割した凹凸面とこの１凸面
と面一の回動摺動面を形成し、夫々に樹脂フイル
ムを溶着し、この円周方向に分割した凹凸面に対
向して反射型の受発光素子を配したものである。Structure of the Invention The present invention has a rotor main body made of resin, a concave and convex surface divided into a plurality of convex surfaces in the circumferential direction and a rotating sliding surface flush with the convex surface on the bottom thereof, each of which is covered with a resin film. Reflection-type light-receiving and emitting elements are arranged facing the uneven surface which is welded and divided in the circumferential direction.
実施例の説明
本発明の回転検出装置を実施例の図面によつて
説明する。第３図は本発明による回転検出装置の
一実施例を示す斜視図であり、回転体５はABS
などのエンジニアリングプラスチツクスによる樹
脂成形品で構成され底面の凸部５−１ａ，５−２
ａ，……と凹面の５−１ｂ，５−２ｂ，……は高
い金型精度を保ち形成されている。この底面の凸
部５−１ａ，５−２ａ，……と共に回転中心近傍
を面一に形成して、白色又は金属光沢に近い表面
に透明なフツ素樹脂などの摩擦係数の低い被膜を
付けた樹脂フイルムを溶着している。これによ
り、回転体の回動は軸受（図示せず）との摩擦が
樹脂フイルムによつて低減され損失が少なく回動
し、その回動によつて底面に対して設置された反
射型の受発光素子６の前面を凸部５−１ａ，５−
２ａが通過すると受発光素子６に回転体５の底面
の凸部５−１ａ，５−２ａ……及び凹部５−１
ｂ，５−２ｂ……の高い形状精度および段差によ
つて、高い精度で且つ反射面の偏奇に加え樹脂フ
イルムの高い反射率によつて信号対雑音比の高い
信号が発生し、回転体５の挙動や回転数が検出で
きるようになつている。DESCRIPTION OF EMBODIMENTS The rotation detection device of the present invention will be explained with reference to drawings of embodiments. FIG. 3 is a perspective view showing an embodiment of the rotation detection device according to the present invention, in which the rotating body 5 is
The convex parts 5-1a and 5-2 on the bottom are made of resin molded products made of engineering plastics such as
a, . . . and concave surfaces 5-1b, 5-2b, . . . are formed with high mold precision. The protrusions 5-1a, 5-2a, . . . on the bottom are formed flush with each other in the vicinity of the center of rotation, and a coating with a low coefficient of friction such as a transparent fluororesin is applied to the white or almost metallic luster surface. A resin film is welded. As a result, the friction with the bearing (not shown) is reduced by the resin film, and the rotating body rotates with little loss. The front surface of the light emitting element 6 is provided with convex portions 5-1a, 5-
2a passes, the light emitting/receiving element 6 is exposed to the convex portions 5-1a, 5-2a, . . . and the concave portions 5-1 on the bottom surface of the rotating body 5.
b, 5-2b..., a signal with a high signal-to-noise ratio is generated due to the high precision and high reflectance of the resin film in addition to the eccentricity of the reflecting surface, and the rotation body 5 The behavior and rotation speed of the engine can now be detected.
第４図は本発明による他の実施例で、前記した
実施例の凸部５−１ａ，５−２ａ……を選択的
に、例えば５−１ａ，５−３ａ，５−５ａ……等
に前記の樹脂フイルムを溶着して一回転による受
発光素子６に発生する信号を必要に応じて変えた
ものである。 FIG. 4 shows another embodiment according to the present invention, in which the convex portions 5-1a, 5-2a, etc. of the above-mentioned embodiment are selectively changed to, for example, 5-1a, 5-3a, 5-5a, etc. The signal generated in the light receiving/emitting element 6 by one revolution of the resin film welded is changed as necessary.
発明の効果
以上のように本発明による回転検出装置では、
安価に精度の高い回転数の検出が可能となり、更
に必要に応じて検出する信号の数を変えられると
いう利点をもつている。しかも、回転体の底面を
利用して反射型の受発光素子の反射面とするた
め、他の部品としての遮光板が必要でなく、組立
性も著しく高めることができる利点を有する。Effects of the Invention As described above, in the rotation detection device according to the present invention,
It has the advantage that it is possible to detect the rotational speed with high precision at low cost, and the number of signals to be detected can be changed as necessary. Furthermore, since the bottom surface of the rotating body is used as the reflective surface of the reflective light receiving/emitting element, there is no need for a light shielding plate as another component, and there is an advantage that ease of assembly can be significantly improved.
第１図、第２図は従来の回転検出装置の斜視
図、第３図は本発明の一実施例における回転検出
装置の斜視図、第４図は本発明の他の実施例によ
る回転検出装置の回転体の斜視図である。
５……回転体、６……反射型受発光素子、５ａ
……回動摺動面、５−１ａ，５−２ａ……凸部、
５−１ｂ，５−２ｂ……凹部。
1 and 2 are perspective views of a conventional rotation detection device, FIG. 3 is a perspective view of a rotation detection device according to an embodiment of the present invention, and FIG. 4 is a perspective view of a rotation detection device according to another embodiment of the present invention. FIG. 2 is a perspective view of a rotating body. 5...Rotating body, 6...Reflection type light receiving/emitting element, 5a
... Rotating sliding surface, 5-1a, 5-2a ... Convex portion,
5-1b, 5-2b... recessed portions.
Claims (1)
成し、更に回転支軸近傍の回動摺動面を上記凸部
と面一に形成し、この凸部と回動摺動面に光学的
反射率が高く摩擦係数の低い樹脂フイルムを溶着
した樹脂製の回転体を有し、この回転体の底面に
面対向して配置した受発光素子で上記回転体の回
動を検出するように構成したことを特徴とする回
転検出装置。 ２ 回転体に形成された複数の凹凸の凸部に選択
的に樹脂フイルムを溶着し、発生する信号数を任
意に設定できるようにしたことを特徴とする特許
請求の範囲第１項記載の回転検出装置。[Scope of Claims] 1. A concave and convex portion divided into a plurality of parts in the circumferential direction is formed on the bottom, and a rotating sliding surface near the rotational shaft is formed flush with the convex portion, and the convex portion and the rotary sliding surface are formed flush with the convex portion. It has a rotating body made of resin with a resin film with high optical reflectance and low coefficient of friction welded to the sliding surface, and a light receiving/emitting element placed on the bottom of the rotating body faces the rotating body. A rotation detection device characterized in that it is configured to detect motion. 2. The rotation according to claim 1, characterized in that a resin film is selectively welded to the convex portions of a plurality of concave and convex portions formed on the rotating body, so that the number of generated signals can be arbitrarily set. Detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59196038A JPS6173070A (en) | 1984-09-19 | 1984-09-19 | Rotation detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59196038A JPS6173070A (en) | 1984-09-19 | 1984-09-19 | Rotation detecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6173070A JPS6173070A (en) | 1986-04-15 |
| JPH0527827B2 true JPH0527827B2 (en) | 1993-04-22 |
Family
ID=16351162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59196038A Granted JPS6173070A (en) | 1984-09-19 | 1984-09-19 | Rotation detecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6173070A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH025753A (en) * | 1988-06-23 | 1990-01-10 | Aisan Ind Co Ltd | Fuel injection valve and nozzle thereof |
| ES2109135B1 (en) * | 1994-04-21 | 1998-07-01 | Zertan Sa | IMPROVEMENTS IN ELECTRIC MOTORS FOR WASHING MACHINES, DISHWASHERS AND THE LIKE. |
| JP2009031107A (en) * | 2007-07-26 | 2009-02-12 | Sumitomo Rubber Ind Ltd | Device for measuring angular velocity of tire |
-
1984
- 1984-09-19 JP JP59196038A patent/JPS6173070A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6173070A (en) | 1986-04-15 |
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