JPH0285319U - - Google Patents
Info
- Publication number
- JPH0285319U JPH0285319U JP16413288U JP16413288U JPH0285319U JP H0285319 U JPH0285319 U JP H0285319U JP 16413288 U JP16413288 U JP 16413288U JP 16413288 U JP16413288 U JP 16413288U JP H0285319 U JPH0285319 U JP H0285319U
- Authority
- JP
- Japan
- Prior art keywords
- magnetized
- drum
- support member
- circumferential surface
- magnetized drum
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図および第２図はこの考案による磁気式エ
ンコーダにおける着磁ドラムの検出装置の実施例
を示し、第１図は概略図斜視図、第２図は正面図
、第３図は他の実施例を示す正面図、第４図は着
磁ドラムに対する磁気センサーのギヤツプと出力
との関係を示す図、第５図は着磁ピツチとギヤツ
プとの関係を示す図である。
１，１１……着磁ドラム、２，１２……シヤフ
ト、３，１３……ボス部、４，１４……支持部材
、４ａ，１４ａ……対向する部分、５，１５……
磁気センサー、６，１６……鋼球、７，１７……
固定部材、８，１８……保持部材、１９……溝。
1 and 2 show an embodiment of a magnetized drum detection device in a magnetic encoder according to this invention, FIG. 1 is a schematic perspective view, FIG. 2 is a front view, and FIG. 3 is another embodiment. FIG. 4 is a diagram showing the relationship between the gap of the magnetic sensor with respect to the magnetized drum and the output, and FIG. 5 is a diagram showing the relationship between the magnetization pitch and the gap. 1, 11... Magnetized drum, 2, 12... Shaft, 3, 13... Boss portion, 4, 14... Support member, 4a, 14a... Opposing portion, 5, 15...
Magnetic sensor, 6, 16... Steel ball, 7, 17...
Fixing member, 8, 18... Holding member, 19... Groove.
Claims (1)
着磁ドラムの周面に設けられた磁化部を磁気セン
サーで検出するようにした磁気式エンコーダにお
いて、前記シヤフトに嵌挿するボス部と、該ボス
部に取付けられるとともに、前記着磁ドラムの周
面に接触する鋼球が設けられて着磁ドラムの周面
と所定の間隔で対向する支持部材と、該支持部材
に設けられて前記着磁ドラムの磁化部に対向する
磁気センサーと、前記着磁ドラムの回転時に前記
支持部材が連れ回りするのを防止するために、前
記支持部材を保持する保持部材とを具えたことを
特徴とする磁気式エンコーダにおける着磁ドラム
の検出装置。 (2) 前記支持部材に設けた鋼球は、前記着磁ド
ラムの周面に設けた溝内に位置している請求項１
記載の磁気式エンコーダにおける着磁ドラムの検
出装置。[Claims for Utility Model Registration] (1) In a magnetic encoder in which a magnetic sensor detects a magnetized portion provided on the circumferential surface of a magnetized drum that rotates via a shaft provided in the center, the shaft a support member that is attached to the boss portion and is provided with a steel ball that contacts the circumferential surface of the magnetized drum and faces the circumferential surface of the magnetized drum at a predetermined interval; a magnetic sensor provided on a support member and facing the magnetized portion of the magnetized drum; and a holding member that holds the support member to prevent the support member from rotating when the magnetization drum rotates. A detection device for a magnetized drum in a magnetic encoder, characterized by comprising: (2) Claim 1, wherein the steel ball provided on the support member is located in a groove provided on the circumferential surface of the magnetized drum.
A detection device for a magnetized drum in the magnetic encoder described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16413288U JPH0285319U (en) | 1988-12-19 | 1988-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16413288U JPH0285319U (en) | 1988-12-19 | 1988-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0285319U true JPH0285319U (en) | 1990-07-04 |
Family
ID=31449472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16413288U Pending JPH0285319U (en) | 1988-12-19 | 1988-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0285319U (en) |
-
1988
- 1988-12-19 JP JP16413288U patent/JPH0285319U/ja active Pending