JP2004262454A5 - - Google Patents
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- JP2004262454A5 JP2004262454A5 JP2004172763A JP2004172763A JP2004262454A5 JP 2004262454 A5 JP2004262454 A5 JP 2004262454A5 JP 2004172763 A JP2004172763 A JP 2004172763A JP 2004172763 A JP2004172763 A JP 2004172763A JP 2004262454 A5 JP2004262454 A5 JP 2004262454A5
- Authority
- JP
- Japan
- Prior art keywords
- crankcase
- traveling speed
- magnetic sensor
- detection device
- sensor
- 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.)
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Description
しかるに、上述したように、センサによって検出される被検出部を回転軸に設ける構成を採ると、前記従来の走行速度検出装置は、ピックアップＩＣからなるセンサの検出部とミッションケースとの間にブラケットが介在していることから、ミッションケースが軸承する出力軸に固定した永久磁石製円板に対してピックアップＩＣの位置がずれ易くなるという問題が生じる。すなわち、製造誤差などによってミッションケースに対するブラケットの取付位置およびブラケットに対するピックアップＩＣの取付位置がそれぞれ僅かずつ設計位置からずれ、ピックアップＩＣと永久磁石製円板との間隔が規定範囲から外れてしまうと、このセンサによって検出した走行速度は精度が低下する。 However, as described above, in the configuration in which the detection target portion detected by the sensor is provided on the rotation shaft, the conventional traveling speed detection device has a bracket between the detection portion of the sensor formed of the pickup IC and the transmission case. As a result, there arises a problem that the position of the pickup IC is easily displaced with respect to the permanent magnet disc fixed to the output shaft supported by the transmission case. That is, if the mounting position of the bracket on the transmission case and the mounting position of the pickup IC on the bracket slightly deviate from the design position due to manufacturing errors etc. and the distance between the pickup IC and the permanent magnet disc deviates from the specified range, The travel speed detected by this sensor is less accurate.
この目的を達成するために、本発明に係る自動二輪車の走行速度検出装置は、クランクケースに支持されかつ後輪とともに回転する回転体の回転を磁気センサによって検出する自動二輪車の走行速度検出装置において、前記磁気センサの検出部を前記クランクケース内に臨ませるとともに、前記クランクケース内に配設された前記回転体に近接させ、この磁気センサを前記クランクケースに直接取付けたものである。
請求項２に記載した発明に係る自動二輪車の走行速度検出装置は、請求項１に記載した発明に係る自動二輪車の走行速度検出装置において、磁気センサに取付用フランジを設け、このフランジとクランクケースとの間にＯリングを介装したものである。
In order to achieve this object, a traveling speed detection device for a motorcycle according to the present invention is a traveling speed detection device for a motorcycle, which detects rotation of a rotating body supported by a crankcase and rotating with a rear wheel by a magnetic sensor. According to another aspect of the present invention, the detection unit of the magnetic sensor is disposed in the crankcase, and the magnetic sensor is directly attached to the crankcase in proximity to the rotating body disposed in the crankcase.
Traveling speed detection device of a motorcycle according to the invention described in claim 2, in the traveling speed detection device of a motorcycle according to the invention described in claim 1, a mounting flange provided on the magnetic sensor, the flange and the crankcase And an O-ring interposed between them.
本発明によれば、一つのクランクケースにセンサと回転体とを支持させることができるから、センサの取付位置が前記回転体に対してずれることがなく、両者の間隔が規定範囲内に確実に入る。
したがって、本発明に係る自動二輪車の走行速度検出装置によれば、センサと被検出物との間隔が規定範囲内に入るから、走行速度を高精度に検出することができる。
また、センサの検出部がクランクケース内に位置しているから、前輪によって跳ね上げられた小石や泥水がセンサの検出部に当たることがなく、センサを前記飛散物から保護するためのカバーを設けなくてよい。
According to the present invention, one crankcase can support the sensor and the rotating body, so that the sensor mounting position does not shift with respect to the rotating body, and the distance between the two reliably falls within the specified range. enter.
Therefore, according to the travel speed detection device for a motorcycle according to the present invention , the travel speed can be detected with high accuracy because the distance between the sensor and the detection object falls within the specified range.
In addition, since the detection unit of the sensor is located in the crankcase, pebbles and muddy water splashed up by the front wheels do not hit the detection unit of the sensor, and no cover is provided to protect the sensor from the scattered objects. You may
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004172763A JP3964408B2 (en) | 2004-06-10 | 2004-06-10 | Motorcycle travel speed detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004172763A JP3964408B2 (en) | 2004-06-10 | 2004-06-10 | Motorcycle travel speed detection device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17902796A Division JP3802148B2 (en) | 1996-07-09 | 1996-07-09 | Motorcycle travel speed detection device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007062408A Division JP2007197003A (en) | 2007-03-12 | 2007-03-12 | Traveling speed detection device for motorcycle |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004262454A JP2004262454A (en) | 2004-09-24 |
| JP2004262454A5 true JP2004262454A5 (en) | 2005-06-16 |
| JP3964408B2 JP3964408B2 (en) | 2007-08-22 |
Family
ID=33128759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004172763A Expired - Lifetime JP3964408B2 (en) | 2004-06-10 | 2004-06-10 | Motorcycle travel speed detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3964408B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5069607B2 (en) * | 2007-12-28 | 2012-11-07 | 本田技研工業株式会社 | Internal combustion engine |
-
2004
- 2004-06-10 JP JP2004172763A patent/JP3964408B2/en not_active Expired - Lifetime
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