JPH0547010Y2 - - Google Patents
Info
- Publication number
- JPH0547010Y2 JPH0547010Y2 JP12707388U JP12707388U JPH0547010Y2 JP H0547010 Y2 JPH0547010 Y2 JP H0547010Y2 JP 12707388 U JP12707388 U JP 12707388U JP 12707388 U JP12707388 U JP 12707388U JP H0547010 Y2 JPH0547010 Y2 JP H0547010Y2
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- wiper
- wiper blade
- glass surface
- blade
- 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
- 239000011521 glass Substances 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は車両用ワイパ装置のワイパブレードに
係り、特に車輌の高速走行時にワイパブレードの
浮上り現象を防止する技術に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a wiper blade of a wiper device for a vehicle, and particularly relates to a technique for preventing the wiper blade from floating when a vehicle is running at high speed.
〈従来の技術〉
自動車用ワイパ装置において、車輌の高速走行
時のワイパブレードの浮上り現象を防止する機構
として種々の提案がなされている。特公昭54−
12689号公報においては、ワイパブレードのヨー
クの通常ほぼコ字形をなす断面の一方側壁が実質
的に切除されており、空気流によるヨークの浮上
り現象を防止するようになされている。<Prior Art> Various proposals have been made for wiper devices for automobiles as mechanisms for preventing the wiper blade from floating when the vehicle is running at high speed. Tokuko Showa 54-
In Japanese Patent No. 12689, one side wall of the normally substantially U-shaped cross section of the yoke of the wiper blade is substantially cut off to prevent the yoke from floating due to air flow.
〈考案が解決しようとする課題〉
上述公知の装置はヨーク個々については空気流
による揚力が発生しないような断面形状となされ
ているが、ワイパブレードの使用状態におけるヨ
ーク相互の重なり具合が考慮されておらず、内側
すなわち下方ヨークの上方を通る気流が外側すな
わち上方ヨークの頂壁部の内面に吹き付けられて
揚力を生じ、高速性を阻害するという不具合があ
つた。<Problem to be solved by the invention> In the above-mentioned known device, each yoke has a cross-sectional shape that does not generate lift force due to airflow, but the degree of overlap between the yokes when the wiper blade is in use is not taken into consideration. However, there was a problem in that the airflow passing above the inner side, that is, the lower yoke, was blown against the outer side, that is, the inner surface of the top wall of the upper yoke, creating a lift force, which impeded high speed performance.
本考案は、上述不具合を解消する新規なワイパ
ブレードを提供することを目的とする。 The present invention aims to provide a new wiper blade that eliminates the above-mentioned problems.
〈課題を解決するための手段〉
本考案によれば、ワイパアームに連結されるヨ
ークと、該ヨークに連結される少くとも１つのヨ
ークとを含むワイパブレードにおいて、各ヨーク
が下方に開いたほぼコ字形の断面形状を有し、使
用時に両ヨークが相互に上下方向に重なり合う部
分において下方ヨークのコ字形の頂壁と少くとも
一方の側壁とが少くとも部分的に上方ヨークのコ
字形の内部空間内に位置しており、上方ヨークの
両下端縁を結ぶ直線とブレートラバーとの間の距
離が上方ヨークの気流方向上流側の下端縁とガラ
ス面との間の距離と同一またはそれより大である
ワイパブレードが提供される。<Means for Solving the Problems> According to the present invention, in a wiper blade including a yoke connected to a wiper arm and at least one yoke connected to the yoke, each yoke is formed into a substantially circular shape with each yoke opening downward. The U-shaped top wall of the lower yoke and at least one side wall are at least partially connected to the U-shaped internal space of the upper yoke in a portion where both yokes overlap each other in the vertical direction when in use. The distance between the straight line connecting both lower edges of the upper yoke and the blade rubber is the same as or greater than the distance between the lower edge of the upper yoke on the upstream side in the airflow direction and the glass surface. A wiper blade is provided.
〈作用〉
本考案によれば、ワイパブレード使用時におい
て下方ヨークの少くとも一方側壁は上方ヨークに
内包されるから、上方ヨークの頂壁部の内面に気
流が吹き付けることはなくなり、車輌の高速走行
時のワイパブレードの浮上り現象を効果的に防止
することができる。<Function> According to the present invention, when the wiper blade is used, at least one side wall of the lower yoke is enclosed in the upper yoke, so airflow is no longer blown against the inner surface of the top wall of the upper yoke, which improves high-speed driving of the vehicle. This can effectively prevent the wiper blade from floating when the wiper blade is removed.
上方ヨークの両下端縁を結ぶ直線とブレードラ
バーとの間の距離が上方ヨークの気流方向上流側
の下端縁とガラス面との間の距離と同一またはそ
れより大となされているから、上方ヨークの気流
方向上流側の下端縁とガラス面との間を通過する
気流によつてブレードラバー前面に高圧部が形成
されることがなく、車輌の高速走行時の風圧によ
るブレードラバーの反転が防止され、高速性能が
向上する。 The distance between the straight line connecting both lower edges of the upper yoke and the blade rubber is equal to or greater than the distance between the lower edge of the upper yoke on the upstream side in the airflow direction and the glass surface. A high-pressure area is not formed on the front surface of the blade rubber due to the airflow passing between the lower edge on the upstream side in the airflow direction and the glass surface, and the blade rubber is prevented from flipping due to wind pressure when the vehicle is running at high speed. , high-speed performance is improved.
〈実施例〉
第５図は特公昭54−12689号公報に記載された
形式のワイパブレード使用状態の部分側面図であ
り、第６図は第５図のＬ−Ｌ断面図である。１は
外側すなわち上方ヨーク、２は内側すなわち下方
ヨーク、３は第３のヨークを示し、一部の気流が
外側ヨーク１と内側ヨーク２との間に入りこみ、
外側ヨーク１の頂壁４の内面に吹き付けられて揚
力Ｆを生ずる。ブレードラバー５に作用するガラ
ス面７に対する押圧力が減少すると共に図にＣで
示す区域の圧力が上昇し、そのリツプ部６が反転
して６′に示す位置をとる現象が生じ、その結果
として第４図に８として示す拭きむらが生ずる。
なお、この現象は特にワイパブレードがオープン
（OPEN）方向に動作するときに生ずる。<Embodiment> FIG. 5 is a partial side view of a wiper blade of the type described in Japanese Patent Publication No. 12689/1989, and FIG. 6 is a sectional view taken along line LL in FIG. 5. 1 indicates the outer or upper yoke, 2 indicates the inner or lower yoke, 3 indicates the third yoke, and some airflow enters between the outer yoke 1 and the inner yoke 2,
It is blown onto the inner surface of the top wall 4 of the outer yoke 1 to generate a lifting force F. As the pressing force acting on the blade rubber 5 against the glass surface 7 decreases, the pressure in the area indicated by C in the figure increases, and a phenomenon occurs in which the lip portion 6 is reversed and assumes the position indicated by 6'. Wiping irregularities shown as 8 in FIG. 4 occur.
Note that this phenomenon occurs particularly when the wiper blade moves in the OPEN direction.
第１図は本考案の実施例のワイパブレードの使
用状態の部分側面図で、第２図は第１図のＭ−Ｍ
断面図、第３図は第２図と同様な断面図、第４図
は車輌のガラス面の正面図でワイパの作動範囲を
示す図である。図示本考案の実施例において内側
すなわち下方ヨーク１２は外側すなわち上方ヨー
ク１１の両側壁の下端Ｐ点とＱ点とを結ぶ線の内
側に位置し、すなわち内包されている。さらにＰ
点とＱ点を結ぶ線とブレードラバー５との間の距
離Ａと、外側ヨーク１１の気流方向上流側の側壁
の下端Ｐ点とガラス面７との間の距離Ｂとの関係
はＡ≧Ｂとなされる。 FIG. 1 is a partial side view of the wiper blade according to the embodiment of the present invention in use, and FIG.
3 is a sectional view similar to FIG. 2, and FIG. 4 is a front view of the glass surface of the vehicle, showing the operating range of the wiper. In the illustrated embodiment of the present invention, the inner or lower yoke 12 is located inside or enclosed within a line connecting the lower ends of points P and Q of both sides of the outer or upper yoke 11. Further P
The relationship between the distance A between the line connecting points Q and Q and the blade rubber 5 and the distance B between the lower end point P of the upstream side wall of the outer yoke 11 in the airflow direction and the glass surface 7 is A≧B It is done.
空気流はほぼ図示気流線に沿つて流れ、外側ヨ
ーク１１と内側ヨーク１２との間には気流が流入
せず、外側ヨークに第６図に示すような気流によ
る揚力が作用することがない。 The airflow flows approximately along the illustrated air flow line, and no airflow flows between the outer yoke 11 and the inner yoke 12, and no lifting force due to the airflow as shown in FIG. 6 acts on the outer yoke.
さらに、側壁の下端Ｐ点とガラス面７との間の
距離Ｂはブレードラバー５の高さＨより小となさ
れており、従つてブレードラバー５の前面、すな
わち気流方向上流側の区域Ｃの圧力が過大となる
ことがなく、ブレードラバーのリツプ部６の反転
が防止され、拭きむらが生じない。 Furthermore, the distance B between the lower end point P of the side wall and the glass surface 7 is smaller than the height H of the blade rubber 5, and therefore the pressure in the front surface of the blade rubber 5, that is, the area C on the upstream side in the airflow direction. This prevents the lip portion 6 of the blade rubber from turning over, and uneven wiping does not occur.
〈考案の効果〉
本考案によれば、ワイパアームに連結されるヨ
ークと、当該ヨークに連結される少くとも１つの
ヨークとを含むワイパブレードにおいて、各ヨー
クが下方に開いたほぼコ字形の断面形状を有し、
使用時に両ヨークが相互に上下方向に重なり合う
部分において下方ヨークのコ字形の頂壁と少くと
も一方の側壁とが少くとも部分的に上方ヨークの
コ字形の内部空間内に位置しており、上方ヨーク
の下端縁を結ぶ直線とブレードラバーとの間の距
離が上方ヨークの気流方向上流側の下端縁とガラ
ス面との間の距離と同一またはそれより大となさ
れているから、ワイパブレード使用時において外
側ヨークと内側ヨークとの間にほとんど気流が流
入せず、従つて外側ヨークの頂壁部の内面に気流
が吹き付けることはなくなり、車輌の高速走行時
のワイパブレードの浮上り現象を効果的に防止す
ることができる。さらに、ブレードラバーの気流
方向上流側の区域の圧力上昇が防止されるからブ
レードラバーのリツプ部の反転が防止され、拭き
むらが防止される。モータ、リンクなどに作用す
る負荷も小で、耐久性も向上する。外側ヨークと
内側ヨークと重なり合うようにすることはヨーク
の高さを減少することを可能として、運転者の視
界を改善する。<Effects of the invention> According to the invention, in a wiper blade including a yoke connected to a wiper arm and at least one yoke connected to the yoke, each yoke has a substantially U-shaped cross-sectional shape with each yoke opening downward. has
In use, the U-shaped top wall of the lower yoke and at least one side wall are located at least partially within the U-shaped interior space of the upper yoke at the portion where both yokes overlap each other in the vertical direction; Since the distance between the straight line connecting the lower edge of the yoke and the blade rubber is the same as or greater than the distance between the lower edge of the upper yoke on the upstream side in the airflow direction and the glass surface, when using the wiper blade In this case, almost no airflow flows between the outer yoke and the inner yoke, and therefore the airflow does not blow against the inner surface of the top wall of the outer yoke, effectively suppressing the floating phenomenon of the wiper blade when the vehicle is running at high speed. can be prevented. Furthermore, since pressure rise in the area on the upstream side of the blade rubber in the airflow direction is prevented, the lip portion of the blade rubber is prevented from inverting, and uneven wiping is prevented. The load acting on the motor, links, etc. is also small, and durability is improved. Overlapping the outer and inner yokes allows the height of the yoke to be reduced, improving visibility for the driver.
第１図は本考案によるワイパブレードの部分側
面図、第２図は第１図の線Ｍ−Ｍに沿う断面図、
第３図は第２図と同様な断面図、第４図はガラス
面の前面図、第５図は従来技術によるワイパブレ
ードの部分側面図、第６図は第５図の線Ｌ−Ｌに
沿う断面図である。
１，１１……上方（外側）ヨーク、２，１２…
…下方（内側）ヨーク、３，１３……第３のヨー
ク、４……ヨーク１の頂壁、５……ブレードラバ
ー、６……リツプ部、７……ガラス面、８……拭
きむら。
FIG. 1 is a partial side view of a wiper blade according to the present invention, FIG. 2 is a sectional view taken along line M-M in FIG. 1,
FIG. 3 is a cross-sectional view similar to FIG. 2, FIG. 4 is a front view of the glass surface, FIG. 5 is a partial side view of a wiper blade according to the prior art, and FIG. 6 is taken along line L-L in FIG. FIG. 1, 11... Upper (outer) yoke, 2, 12...
... lower (inner) yoke, 3, 13 ... third yoke, 4 ... top wall of yoke 1, 5 ... blade rubber, 6 ... lip portion, 7 ... glass surface, 8 ... uneven wiping.
Claims (1)
ークに連結される少くとも１つのヨークとを含
むワイパブレードにおいて、各ヨークが下方に
開いたほぼコ字形の断面形状を有し、使用時に
両ヨークが相互に上下方向に重なり合う部分に
おいて下方ヨークのコ字形の頂壁と少くとも一
方の側壁とが少くとも部分的に上方ヨークのコ
字形の内部空間内に位置しており、上方ヨーク
の下端縁を結ぶ直線とブレードラバーとの間の
距離が上方ヨークの気流方向上流側の下端縁と
ガラス面との間の距離と同一またはそれより大
であることを特徴とするワイパブレード。 ２ 上方ヨークのコ字形の気流方向上流側の側壁
の下端が他方の側壁の下端よりガラス面に近接
していることを特徴とする請求項１に記載のワ
イパブレード。 ３ 上方ヨークの気流方向上流側の下端縁とガラ
ス面との間の距離がブレードラバーの高さより
小であることを特徴とする請求項１に記載のワ
イパブレード。[Claims for Utility Model Registration] 1. A wiper blade including a yoke connected to a wiper arm and at least one yoke connected to the yoke, each yoke having a substantially U-shaped cross-sectional shape that opens downward. and the U-shaped top wall of the lower yoke and at least one side wall are located at least partially within the U-shaped internal space of the upper yoke at a portion where both yokes overlap each other in the vertical direction in use. , a wiper characterized in that the distance between the straight line connecting the lower edge of the upper yoke and the blade rubber is the same as or larger than the distance between the lower edge of the upper yoke on the upstream side in the airflow direction and the glass surface. blade. 2. The wiper blade according to claim 1, wherein the lower end of the U-shaped upstream side wall in the air flow direction of the upper yoke is closer to the glass surface than the lower end of the other side wall. 3. The wiper blade according to claim 1, wherein the distance between the lower edge of the upper yoke on the upstream side in the air flow direction and the glass surface is smaller than the height of the blade rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12707388U JPH0547010Y2 (en) | 1988-09-30 | 1988-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12707388U JPH0547010Y2 (en) | 1988-09-30 | 1988-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0249775U JPH0249775U (en) | 1990-04-06 |
| JPH0547010Y2 true JPH0547010Y2 (en) | 1993-12-09 |
Family
ID=31379168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12707388U Expired - Lifetime JPH0547010Y2 (en) | 1988-09-30 | 1988-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547010Y2 (en) |
-
1988
- 1988-09-30 JP JP12707388U patent/JPH0547010Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0249775U (en) | 1990-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6000093A (en) | Wiper blade assembly | |
| JP2747581B2 (en) | Wiper blade | |
| US5093954A (en) | Wiper blade with a spoiler | |
| JP2627845B2 (en) | Vehicle wiper | |
| JPH03132450A (en) | Air current deflector for automotive window wiper | |
| JPH03167053A (en) | Window wiper device equipped with air stream deflecting plate | |
| US6065800A (en) | Truck aerodynamic A-pillar design | |
| US5553912A (en) | Fluid containment device | |
| JPH0547010Y2 (en) | ||
| JPH01293256A (en) | Wiper blade | |
| JP2003526567A (en) | Wiper device for automobile | |
| JPH0728759U (en) | Wiper blade | |
| JP3108041B2 (en) | Wiper arm and vehicle wiper device | |
| JPH04108051A (en) | Air current deflection device for window wiping wiper blade | |
| JPH04133602A (en) | Sound arrestor for pantograph | |
| JP2518824B2 (en) | Lifting prevention device for wiper blade | |
| JPH0138006B2 (en) | ||
| JPH0239906Y2 (en) | ||
| CN103661275B (en) | Device for mounting windshield wiper | |
| JPS6231331Y2 (en) | ||
| JP3012683U (en) | Wiper blade | |
| JPS61215149A (en) | Wiper blade | |
| JPS6340372Y2 (en) | ||
| JPH0740462Y2 (en) | Car drip structure | |
| EP0238262B1 (en) | Dissymmetrical wiper blade |