JP3116093U - Tire sliding friction measuring device - Google Patents
Tire sliding friction measuring device Download PDFInfo
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- JP3116093U JP3116093U JP2005006959U JP2005006959U JP3116093U JP 3116093 U JP3116093 U JP 3116093U JP 2005006959 U JP2005006959 U JP 2005006959U JP 2005006959 U JP2005006959 U JP 2005006959U JP 3116093 U JP3116093 U JP 3116093U
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- braking force
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- braking
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Abstract
【課題】滑り摩擦力測定装置における制動力発生部の一部または全部を覆う保護カバーを設けて、制動部に水や土、埃がかからないようにし、制動力低下を防止し、一定の制動力及び制動力発生速度を常に得ることが出来るタイヤの滑り摩擦力測定装置を提供する。
【解決手段】前輪２を転動自在に支持したタイヤ取付け軸３に、ディスクロータ４とパッド（図示せず）とから成るディスクブレーキ等の制動手段５により制動力を付与する制動力発生部６と、温度測定装置７（温度センサー）を取付け、この制動力発生部６の少なくとも進行方向前面には、金属製または樹脂製の保護カバー８が設けてある。なお、保護カバー８は制動力発生部６及び温度測定装置７（温度センサー）の全体を覆うことも可能であり、また上記のように進行方向前面の一部を覆うことも可能である。
【選択図】 図２
PROBLEM TO BE SOLVED: To provide a protective cover for covering a part or all of a braking force generation part in a sliding frictional force measuring device so that the braking part is not exposed to water, dirt, dust, preventing a reduction in braking force, and a constant braking force And a tire sliding friction force measuring device capable of always obtaining a braking force generation speed.
A braking force generating section 6 for applying a braking force to a tire mounting shaft 3 that supports a front wheel 2 in a freely rolling manner by a braking means 5 such as a disk brake including a disk rotor 4 and a pad (not shown). A temperature measuring device 7 (temperature sensor) is attached, and a protective cover 8 made of metal or resin is provided at least on the front surface in the traveling direction of the braking force generator 6. The protective cover 8 can cover the entire braking force generator 6 and the temperature measuring device 7 (temperature sensor), and can also cover a part of the front surface in the traveling direction as described above.
[Selection] Figure 2
Description
この考案は、タイヤの滑り摩擦力測定装置に係わり、更に詳しくは滑り摩擦力測定装置における制動力発生部の一部または全部を覆う保護カバーを設けて、制動部に水や土、埃がかからないようにし、常に安定した滑り摩擦力測定を行うことが出来るようにしたタイヤの滑り摩擦力測定装置に関するものである。 The present invention relates to a tire sliding frictional force measuring device, and more specifically, a protective cover that covers a part or all of the braking force generating portion of the sliding frictional force measuring device is provided so that water, dirt, and dust are not applied to the braking portion. Thus, the present invention relates to a sliding frictional force measuring device for a tire that can always perform stable sliding frictional force measurement.
従来、タイヤの滑り摩擦力測定装置を使用して、ＷＥＴ路面（特に散水路面に車両が侵入していく場合）の測定においては、ディスクブレーキ等の制動力発生部にカバー等で覆われていないため、測定車の前輪・試験輪で巻き上げた水飛沫が試験タイヤ軸に制動力を発生させるディスクブレーキに掛かることで、ディスクブレーキのロータとパッド間の摩擦係数が低下し制動力が低下することで精度の高い滑り摩擦力測定が難しい。 Conventionally, in the measurement of the WET road surface (especially when the vehicle enters the watering road surface) using the tire sliding frictional force measuring device, the braking force generating part such as a disc brake is not covered with a cover or the like. Therefore, water droplets rolled up on the front and test wheels of the measurement vehicle are applied to the disc brake that generates braking force on the test tire shaft, which reduces the friction coefficient between the rotor and the pad of the disc brake and lowers the braking force. It is difficult to measure sliding friction force with high accuracy.
また、ＤＲＹ測定時においても、前輪で巻き上げた土砂や土埃等により、ディスクブレーキのロータとパッド間の摩擦係数（μ値）が変化するだけでなく、ロータの傷付きが懸念されると言う問題がある。更に、ディスクブレーキをカバーで単に覆うだけでは、ロータ温度変化による制動力発生速度変化が懸念される。 Further, even during DRY measurement, there is a problem that not only the friction coefficient (μ value) between the rotor and the pad of the disc brake changes due to earth and sand rolled up by the front wheels, but also the rotor may be damaged. There is. Furthermore, if the disc brake is simply covered with the cover, there is a concern that the braking force generation speed changes due to the rotor temperature change.
ところで、従来では自動車のディスクブレーキの防錆方法等を行う手段として、ディスクブレーキの側面に防錆カバーを取付けることでディスクブレーキ側への雨水・塩分を含んだ外気の侵入を防止させるように構成した防錆カバーが知られている（例えば、特許文献１参照）が、タイヤの滑り摩擦力測定装置におけるディスクブレーキ等の制動力発生部をカバー等で覆ったものは提案されていない。
この考案はかかる従来の問題点に着目し、滑り摩擦力測定装置における制動力発生部の一部または全部を覆う保護カバーを設けて、制動部に水や土、埃がかからないようにし、制動力低下を防止し、一定の制動力及び制動力発生速度を常に得ることが出来るタイヤの滑り摩擦力測定装置を提供することを目的とするものである。 The present invention pays attention to such conventional problems, and provides a protective cover that covers a part or all of the braking force generating part in the sliding frictional force measuring device so that the braking part is not exposed to water, dirt, or dust, and the braking force It is an object of the present invention to provide a tire sliding frictional force measuring device capable of preventing a decrease and always obtaining a constant braking force and a braking force generation speed.
この考案は上記目的を達成するため、制動力発生部の少なくとも進行方向前面に保護カバーを設けたことを要旨とするものである。 In order to achieve the above object, the gist of the invention is that a protective cover is provided at least on the front surface in the traveling direction of the braking force generator.
ここで、前記制動力発生部にディスクブレーキを用い、ディスクブレーキ全体を保護カバーで覆い、また前記保護カバーに、少なくとも一つ以上の通気孔を設けるものである。また、前記通気孔の開度を調整可能に構成することも可能である。また、前記ディスクブレーキに温度測定装置を設け、この温度測定装置の温度が所定温度範囲となるように、前記保護カバーの通気孔の開度を制御する手段を設けることも可能である。 Here, a disc brake is used for the braking force generating portion, the entire disc brake is covered with a protective cover, and at least one vent hole is provided in the protective cover. It is also possible to configure such that the opening degree of the vent hole can be adjusted. It is also possible to provide a temperature measuring device for the disc brake and to provide means for controlling the opening degree of the vent of the protective cover so that the temperature of the temperature measuring device falls within a predetermined temperature range.
この考案は、上記のように制動力発生部の少なくとも進行方向前面に保護カバーを設けたので、以下のような優れた効果を奏するものである。
(a).ＷＥＴ路面の制動時の制動力低下を防止し、一定の制動力及び制動力発生速度を常に得ることが出来、また制動力発生部に水や土、埃が直接かからないようにすることで、制動力を安定化させ、傷付きを防止して耐久性を向上させることが出来る。
(b).ＤＲＹ測定時においても、ディスクブレーキのロータとパッド間の摩擦係数（μ値）が変化させず、ロータの傷付き等を有効に防止することが出来る。
(c).ロータ温度変化による制動力発生速度変化も防止出来る。
This device has the following excellent effects because the protective cover is provided at least on the front surface in the traveling direction of the braking force generating portion as described above.
(a). Preventing a decrease in braking force when braking on the WET road surface, a constant braking force and a braking force generation speed can be obtained at all times, and water, soil, and dust are not directly applied to the braking force generation part. As a result, the braking force can be stabilized, scratches can be prevented, and durability can be improved.
(b) Even at the time of DRY measurement, the friction coefficient (μ value) between the rotor and the pad of the disc brake is not changed, and it is possible to effectively prevent the rotor from being damaged.
(c) It is also possible to prevent the braking force generation speed change due to the rotor temperature change.
以下、添付図面に基づき、この考案の実施形態を説明する。 図１は、この考案を実施したタイヤの滑り摩擦力測定方法を実施するための測定車両の側面図、図２は図１のＡ−Ａ矢視拡大側面図を示し、１は測定車両、２は試験用の前輪（試験輪）、３は後輪を示し、前記前輪２を転動自在に支持したタイヤ取付け軸３に、ディスクロータ４とパッド（図示せず）とから成るディスクブレーキ等の制動手段５により制動力を付与する制動力発生部６と、温度測定装置７（温度センサー）を取付け、この制動力発生部６の少なくとも進行方向前面には、金属製または樹脂製の保護カバー８が設けてある。
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view of a measuring vehicle for carrying out a method for measuring a sliding frictional force of a tire embodying the present invention, FIG. 2 is an enlarged side view taken along the line AA in FIG. Is a front wheel for testing (test wheel), 3 is a rear wheel, a
なお、保護カバー８は制動力発生部６及び温度測定装置７（温度センサー）の全体を覆うことも可能であり、また上記のように進行方向前面の一部を覆うことも可能である。
The protective cover 8 can cover the entire
前記保護カバー８の一部には、少なくとも一つ以上の通気孔９を設け、この通気孔９に開閉可能な扉を設け、この通気孔９を通してロータ温度を監視し、また通気孔９の開度を調節して適正温度範囲に保つことが可能である。即ち、保護カバー８内の制動力発生部６における温度を温度測定装置７により検出し、この温度測定装置７の温度が所定温度範囲となるように、前記保護カバー８の通気孔９の開度を制御する手段を設けることも可能である。
A part of the protective cover 8 is provided with at least one vent hole 9, a door that can be opened and closed is provided in the vent hole 9, the rotor temperature is monitored through the vent hole 9, and the vent hole 9 is opened. It is possible to maintain the temperature within a proper temperature range by adjusting the degree. That is, the temperature of the
以上のように、制動力発生部６の少なくとも進行方向前面に保護カバー８を設けたことにより、ＷＥＴ路面の制動時の制動力低下を防止し、一定の制動力及び制動力発生速度を常に得ることが出来、また制動力発生部に水や土、埃が直接かからないようにすることで、制動力を安定化させ、傷付きを防止して耐久性を向上させることが出来るものである。
As described above, by providing the protective cover 8 at least in front of the traveling direction of the braking
１ 測定車両 ２ 前輪（試験輪）
３ 後輪 ４ ディスクロータ
５ 制動手段 ６ 制動力発生部
７ 温度測定装置（温度センサー）
８ 保護カバー ９ 通気孔
1 Measurement vehicle 2 Front wheel (test wheel)
3 Rear wheel 4
8 Protective cover 9 Vent hole
Claims (5)
前記制動力発生部の少なくとも進行方向前面に保護カバーを設けて成るタイヤの滑り摩擦力測定装置。 A braking force generator for applying a braking force by a braking means to a tire mounting shaft that rotatably supports the tire, a longitudinal force generated when the braking force is applied to the tire by the braking means, and a tire rotation speed In the tire sliding frictional force measuring device equipped with the detector of
A tire sliding frictional force measuring device in which a protective cover is provided at least in front of the braking force generating portion in the traveling direction.
The temperature measurement device is provided in the disc brake, and means for controlling the opening degree of the vent of the protective cover is provided so that the temperature of the temperature measurement device falls within a predetermined temperature range. Tire sliding friction force measuring device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005006959U JP3116093U (en) | 2005-08-25 | 2005-08-25 | Tire sliding friction measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005006959U JP3116093U (en) | 2005-08-25 | 2005-08-25 | Tire sliding friction measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010511858A (en) * | 2006-12-01 | 2010-04-15 | ネーデルランドセ オルガニサティエ フォール トエゲパストナトールヴェテンシャッペリク オンデルゾエク ティエヌオー | MEASURING DEVICE AND TIRE DATA MEASURING METHOD |
-
2005
- 2005-08-25 JP JP2005006959U patent/JP3116093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010511858A (en) * | 2006-12-01 | 2010-04-15 | ネーデルランドセ オルガニサティエ フォール トエゲパストナトールヴェテンシャッペリク オンデルゾエク ティエヌオー | MEASURING DEVICE AND TIRE DATA MEASURING METHOD |
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