JP4038798B2 - Vehicle wiper - Google Patents

Vehicle wiper Download PDF

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JP4038798B2
JP4038798B2 JP2003305209A JP2003305209A JP4038798B2 JP 4038798 B2 JP4038798 B2 JP 4038798B2 JP 2003305209 A JP2003305209 A JP 2003305209A JP 2003305209 A JP2003305209 A JP 2003305209A JP 4038798 B2 JP4038798 B2 JP 4038798B2
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wiper
support shaft
wiper arm
connecting hole
blade
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JP2005075050A (en
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美音也 福士
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自動車電機工業株式会社
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/40—Connections between blades and arms
    • B60S2001/409—Connections between blades and arms characterised by the arm or connecting part mounted on the arm presenting a shaped opening for bearing the pivot axis

Description

本発明は、自動車のウインドシールドガラス等を払拭する車両用ワイパに関し、詳しくは、ワイパブレードのブレードレバーにワイパアームの先端部を着脱かつ回動自在に連結するようにした車両用ワイパに係わる。   The present invention relates to a vehicle wiper for wiping a windshield glass or the like of an automobile, and more particularly to a vehicle wiper in which a distal end portion of a wiper arm is detachably and rotatably connected to a blade lever of a wiper blade.

この種の車両用ワイパとして、図８〜図１０に示すものがある（例えば、特許文献１参照。）。   As this type of vehicle wiper, there is one shown in FIGS. 8 to 10 (see, for example, Patent Document 1).

この車両用ワイパ１は、図８に示すように、ワイパアーム２と、このワイパアーム２の先端部に回動自在に連結されるワイパブレード５を備えている。このワイパアーム２は、図示しないピボット軸に固定されるアームヘッド３と、このアームヘッド３の先端に回動自在に支持されたリテーナ４と、このリテーナ４の先端に合成樹脂にて一体に形成されたアームピース４Ａとで構成されている。   As shown in FIG. 8, the vehicle wiper 1 includes a wiper arm 2 and a wiper blade 5 that is rotatably connected to a distal end portion of the wiper arm 2. The wiper arm 2 is integrally formed of a synthetic resin at an end of an arm head 3 fixed to a pivot shaft (not shown), a retainer 4 rotatably supported at the end of the arm head 3, and the end of the retainer 4. Arm piece 4A.

また、ワイパブレード５は、ウインドシールドガラス等の払拭面に当接させるゴム製のブレードラバー６と、このブレードラバー６の両端に取り付けられた一対のレバーヨーク７，７と、この各レバーヨーク７の中央部に両端部が掛け渡されて回動自在に支持された合成樹脂製のブレードレバー８とで構成されている。   The wiper blade 5 includes a rubber blade rubber 6 that is brought into contact with a wiping surface such as a windshield glass, a pair of lever yokes 7 and 7 attached to both ends of the blade rubber 6, and each lever yoke 7 The blade lever 8 is made of a synthetic resin and is rotatably supported with both end portions thereof spanned around the central portion.

そして、図９（ａ），（ｂ），（ｃ）に示すように、ワイパアーム２の先端部を成すアームピース４Ａの先端には連結孔４ａを形成してある。また、ブレードレバー８の中央には長尺の装着孔８ａを形成してあり、この装着孔８ａの幅方向の両側壁８ｂ，８ｂの中央には支軸９を架設してある。この支軸９は、図１０に示すように、軸径寸法Ｓが軸直径Ｄより小さく設定された（所謂Ｄカットされた）小径部９ａを有している。さらに、アームピース４Ａの連結孔４ａは、支軸９の軸直径Ｄより小さくかつ小径部９ａ（軸径寸法Ｓ）より大きい寸法の開口部４ｂを有している。   9A, 9B, and 9C, a connecting hole 4a is formed at the tip of the arm piece 4A that forms the tip of the wiper arm 2. As shown in FIG. A long mounting hole 8a is formed at the center of the blade lever 8, and a support shaft 9 is installed at the center of both side walls 8b, 8b in the width direction of the mounting hole 8a. As shown in FIG. 10, the support shaft 9 has a small diameter portion 9 a in which the shaft diameter dimension S is set smaller than the shaft diameter D (so-called D cut). Further, the connecting hole 4a of the arm piece 4A has an opening 4b having a size smaller than the shaft diameter D of the support shaft 9 and larger than the small diameter portion 9a (shaft diameter size S).

したがって、図９（ａ）に示すように、アームピース４Ａの開口部４ｂをブレードレバー８の支軸９の小径部９ａに対応させることにより、支軸９と連結孔４ａとが脱着可能となる構成になっている。また、図９（ｂ），（ｃ）に示すように、開口部４ｂが支軸９の小径部９ａに対応した脱着可能領域からワイパ使用位置へ支軸９を中心にワイパアーム２を回転させて開口部４ｂと小径部９ａとを非対応とすることにより、支軸９と連結孔４ａとの脱着が不能となる構成になっている。   Therefore, as shown in FIG. 9A, by making the opening 4b of the arm piece 4A correspond to the small diameter portion 9a of the support shaft 9 of the blade lever 8, the support shaft 9 and the connecting hole 4a can be detached. It is configured. Further, as shown in FIGS. 9B and 9C, the wiper arm 2 is rotated around the support shaft 9 from the removable region corresponding to the small diameter portion 9a of the support shaft 9 to the wiper use position. By making the opening 4b and the small-diameter portion 9a incompatible, the support shaft 9 and the connection hole 4a cannot be detached.

特開２０００−３５５２７０号公報JP 2000-355270 A

前記従来の車両用ワイパ１では、連結孔４ａの開口部４ｂを支軸９のＤカットされた小径部９ａに対応させて支軸９と連結孔４ａとを脱着可能にするとともに、ワイパ使用位置では開口部４ｂを支軸９の軸直径Ｄ部分に対応させて該支軸９と連結孔４ａとを脱着不能に連結しているため、支軸９の小径部９ａをある程度大きめにＤカットし、軸径寸法Ｓと軸直径Ｄとの寸法差を大きくしないと、ワイパアーム２とワイパブレード５のブレードレバー８とを確実に連結することができないが、支軸９の小径部９ａを形成するためにＤカット部分を大きくし過ぎると、強度的に弱くなったり、構造的に安定した連結が得られなくなって、ワイパアーム２とワイパブレード５のブレードレバー８との連結が不用意に解除（分離）されるおそれがあった。また、支軸９や小径部９ａの各形状に合わせて連結孔４ａや開口部４ｂの各形状を高精度に樹脂成形しないと、ワイパアーム２とワイパブレード５のブレードレバー８との間、即ち、連結孔４ａと支軸９との間にガタツキが発生し易かった。   In the conventional vehicle wiper 1, the support shaft 9 and the connection hole 4 a can be attached to and detached from each other by making the opening 4 b of the connection hole 4 a correspond to the D-cut small diameter portion 9 a of the support shaft 9, and the wiper use position. Then, since the opening 4b corresponds to the shaft diameter D portion of the support shaft 9 and the support shaft 9 and the connection hole 4a are connected so as not to be detachable, the small-diameter portion 9a of the support shaft 9 is D-cut to a certain extent. If the dimensional difference between the shaft diameter dimension S and the shaft diameter D is not increased, the wiper arm 2 and the blade lever 8 of the wiper blade 5 cannot be securely connected, but the small diameter portion 9a of the support shaft 9 is formed. If the D-cut portion is too large, the strength becomes weak or structurally stable connection cannot be obtained, and the connection between the wiper arm 2 and the blade lever 8 of the wiper blade 5 is inadvertently released (separated). There is a risk of being . Further, unless the shapes of the connecting hole 4a and the opening 4b are resin-molded with high accuracy in accordance with the shapes of the support shaft 9 and the small diameter portion 9a, between the wiper arm 2 and the blade lever 8 of the wiper blade 5, that is, Roughness was easily generated between the connecting hole 4a and the support shaft 9.

そこで、本発明は、前記した課題を解決すべくなされたものであり、簡単な構造でかつ低コストでワイパアームとワイパブレードのブレードレバーとを容易かつ確実に連結することができると共に、ワイパアームとワイパブレードのブレードレバーとの間のガタツキの発生を防止することができる車両用ワイパを提供することを目的とする。   Accordingly, the present invention has been made to solve the above-described problems, and can easily and reliably connect the wiper arm and the blade lever of the wiper blade with a simple structure and at a low cost. An object of the present invention is to provide a vehicle wiper capable of preventing the occurrence of rattling between the blade levers of the blades.

請求項１の発明は、ワイパブレードのブレードレバーに装着孔を形成し、この装着孔の両側壁に支軸を架設する一方、ワイパアームの先端部に開口部を有した連結孔を形成し、前記ブレードレバーの装着孔に前記ワイパアームの先端部を差し込むと共に、前記ブレードレバーの支軸に前記ワイパアームの連結孔の開口部を差し込んで該支軸に該連結孔を装着させ、かつ前記ブレードレバーの支軸を中心に前記ワイパアームをワイパ使用位置まで回転させることによってワイパブレードとワイパアームを分離することなく連結した車両用ワイパにおいて、前記支軸を円柱状に形成すると共に、該支軸の外周にその軸直径と同寸法以下の幅寸法を有した凸部を形成する一方、前記連結孔を前記支軸の軸直径と同寸法以上の直径の円形に形成すると共に、該連結孔に前記支軸の軸直径と同寸法以上の幅寸法の開口部を連続して形成し、かつ前記ワイパアームを前記支軸を中心にワイパ使用位置まで回転させた際に前記支軸の凸部が嵌め込まれて前記ワイパアームが前記ブレードレバーに抜け止めされる凹部を前記連結孔に形成したことを特徴とする。   According to the first aspect of the present invention, a mounting hole is formed in the blade lever of the wiper blade, and a support shaft is provided on both side walls of the mounting hole, while a connecting hole having an opening is formed at the tip of the wiper arm, The tip of the wiper arm is inserted into the mounting hole of the blade lever, the opening of the connecting hole of the wiper arm is inserted into the support shaft of the blade lever, and the connection hole is attached to the support shaft. In the vehicle wiper in which the wiper blade and the wiper arm are connected without being separated by rotating the wiper arm to the wiper use position around the shaft, the support shaft is formed in a columnar shape, and the shaft is arranged on the outer periphery of the support shaft. While forming a convex portion having a width dimension equal to or smaller than the diameter, the connecting hole is formed in a circular shape having a diameter equal to or larger than the shaft diameter of the support shaft. In addition, an opening having a width equal to or larger than the shaft diameter of the support shaft is continuously formed in the connection hole, and the support arm is rotated when the wiper arm is rotated about the support shaft to a wiper use position. The connecting hole is formed with a concave portion in which a convex portion of the shaft is fitted and the wiper arm is prevented from being detached by the blade lever.

請求項２の発明は、請求項１記載の車両用ワイパであって、前記支軸の両側に前記凸部をそれぞれ一体突出形成すると共に、前記連結孔の該各凸部に対向する位置に前記凹部をそれぞれ形成したことを特徴とする。   A second aspect of the invention is the vehicle wiper according to the first aspect, wherein the convex portions are integrally formed on both sides of the support shaft, and the convex portions of the connecting holes are opposed to the convex portions. It is characterized in that a recess is formed.

以上説明したように、請求項１の発明によれば、支軸を円柱状に形成すると共に、該支軸の外周にその軸直径と同寸法以下の幅寸法を有した凸部を形成し、連結孔を支軸の軸直径と同寸法以上の直径の円形に形成すると共に、該連結孔に支軸の軸直径と同寸法以上の幅寸法の開口部を連続して形成し、かつワイパアームを支軸を中心にワイパ使用位置まで回転させた際に支軸の凸部が嵌め込まれてワイパアームがブレードレバーに抜け止めされる凹部を連結孔に形成したので、円柱状の支軸に連結孔の開口部を差し込んで、該支軸に連結孔を装着した後で、ワイパアームをワイパ使用位置まで回転させる簡単な作業により支軸の凸部に連結孔の凹部を嵌め込み係止してワイパアームとワイパブレードのブレードレバーとを確実に連結することができると共に、ワイパアームとワイパブレードのブレードレバーとの間、即ち、連結孔と支軸との間のガタツキの発生を防止することができる。また、支軸に従来のようなカット部分を形成しなくても済むため、強度的に弱くなったりせず構造的に安定したワイパアームとワイパブレードのブレードレバーとの連結状態を低コストで得ることができる。これにより、ワイパアームとワイパブレードのブレードレバーとの連結状態が不用意に解除されることがない。   As described above, according to the invention of claim 1, the support shaft is formed in a columnar shape, and a convex portion having a width dimension equal to or less than the shaft diameter is formed on the outer periphery of the support shaft, The connecting hole is formed in a circular shape having a diameter equal to or larger than the shaft diameter of the support shaft, an opening having a width dimension equal to or larger than the shaft diameter of the support shaft is continuously formed in the connecting hole, and a wiper arm is formed. Since the convex part of the support shaft is fitted into the connection hole when the wiper arm is rotated to the position where the wiper is used around the support shaft, the connection hole has a recess that prevents the wiper arm from coming off the blade lever. After inserting the opening and attaching the connection hole to the support shaft, the recess of the connection hole is fitted into the protrusion of the support shaft and locked by a simple operation of rotating the wiper arm to the wiper use position. Securely connect with the blade lever of It is possible, between the blade lever of the wiper arm and the wiper blade, i.e., it is possible to prevent the occurrence of rattling between the coupling hole and the support shaft. In addition, since it is not necessary to form a conventional cut portion on the support shaft, a structurally stable wiper arm and wiper blade blade lever can be obtained at low cost without weakening in strength. Can do. Thereby, the connection state of the wiper arm and the blade lever of the wiper blade is not inadvertently released.

請求項２の発明によれば、支軸の両側に凸部をそれぞれ一体突出形成すると共に、連結孔の該各凸部に対向する位置に凹部をそれぞれ形成したので、支軸の両側の各凸部に連結孔の両側の各凹部との嵌合による係止によりワイパアームとワイパブレードのブレードレバーとの間のガタツキの発生をより確実に防止することができる。   According to the second aspect of the present invention, the convex portions are integrally formed on both sides of the support shaft, and the concave portions are formed at positions facing the respective convex portions of the connecting hole. Occurrence of backlash between the wiper arm and the blade lever of the wiper blade can be more reliably prevented by locking the portion by engagement with the concave portions on both sides of the connection hole.

以下、本発明の一実施形態を図面に基づいて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１は本発明の一実施形態の車両用ワイパの要部を示す分解斜視図、図２は同車両用ワイパに用いられるワイパアームの先端部の正面図、図３は同車両用ワイパに用いられるワイパブレードのブレードレバーの要部の断面図、図４は同ブレードレバーの支軸にワイパアームの連結孔が装着される直前の状態を示す要部の断面図、図５は同ブレードレバーの支軸にワイパアームの連結孔が装着された状態を一部断面で示す正面図、図６は同ワイパアームの回転途中の状態を一部断面で示す正面図、図７は同ワイパアームをワイパ使用位置まで回転させた状態を一部断面で示す正面図である。   FIG. 1 is an exploded perspective view showing a main part of a vehicle wiper according to an embodiment of the present invention, FIG. 2 is a front view of a tip portion of a wiper arm used in the vehicle wiper, and FIG. 3 is used in the vehicle wiper. 4 is a cross-sectional view of the main part of the blade lever of the wiper blade, FIG. 4 is a cross-sectional view of the main part showing a state immediately before the connecting hole of the wiper arm is mounted on the support shaft of the blade lever, and FIG. FIG. 6 is a front view partially showing a state in which the wiper arm connecting hole is mounted, FIG. 6 is a front view partially showing a state during rotation of the wiper arm, and FIG. 7 is a view showing the wiper arm rotated to the wiper use position. It is a front view which shows a state with a partial cross section.

図５〜図７に示すように、車両用ワイパ１０は、ワイパアーム１１と、このワイパアーム１１の先端部１２に回動自在に連結されるワイパブレード１５を備えている。このワイパアーム１１は、ピボット軸に固定されるアームヘッドと、このアームヘッドの先端に回動自在に支持されたリテーナ（いずれも図示省略）と、このリテーナの先端に合成樹脂にて一体に形成されたアームピース（先端部）１２とで構成されている。   As shown in FIGS. 5 to 7, the vehicle wiper 10 includes a wiper arm 11 and a wiper blade 15 that is rotatably connected to a distal end portion 12 of the wiper arm 11. The wiper arm 11 is integrally formed of a synthetic resin at an end of an arm head fixed to a pivot shaft, a retainer (both not shown) rotatably supported at the end of the arm head, and the end of the retainer. Arm piece (tip portion) 12.

また、ワイパブレード１５は、ウインドシールドガラス等の払拭面に当接させる断面略Ｔ字状でゴム製のブレードラバー１６と、このブレードラバー１６の両端に取り付けられた合成樹脂製の一対のレバーヨーク１７，１７と、この各レバーヨーク１７の中央部に両端部が掛け渡されて回動自在に支持された合成樹脂製のブレードレバー１８とで構成されている。   The wiper blade 15 includes a rubber blade rubber 16 having a substantially T-shaped cross section that comes into contact with a wiping surface such as a windshield glass, and a pair of lever yokes made of synthetic resin attached to both ends of the blade rubber 16. 17 and 17, and a synthetic resin blade lever 18 that is supported by a central portion of each lever yoke 17 so that both ends of the lever yoke 17 are rotatably supported.

そして、図１，図２，図４に示すように、ワイパアーム１１の先端部を成すアームピース１２の先端の下面１２ａには開口部１３ａを有した連結孔１３を形成してある。また、図１，図３，図４に示すように、ブレードレバー１８の略中央には長尺の装着孔１８ａを形成してあり、この装着孔１８ａの相対向する両側壁１８ｂ，１８ｂの中央には支軸１９を一体突出成形により架設してある。   As shown in FIGS. 1, 2, and 4, a connecting hole 13 having an opening 13 a is formed in the lower surface 12 a at the tip of the arm piece 12 that forms the tip of the wiper arm 11. As shown in FIGS. 1, 3, and 4, a long mounting hole 18a is formed in the approximate center of the blade lever 18, and the centers of the opposite side walls 18b, 18b of the mounting hole 18a are formed. The support shaft 19 is constructed by integral projecting molding.

図１，図３，図４に示すように、支軸１９は円柱状に形成されると共に、該支軸１９の外周の両側（両側壁１８ｂ，１８ｂ側）にはその軸直径Ｄと同寸法の幅寸法Ｌを有した扇形の凸部１９ａ，１９ａをそれぞれ一体突出形成してある（Ｄ＝Ｌ）。図３に示すように、支軸１９と凸部１９ａとの全長Ｈは、凸部１９ａの厚み分、支軸１９の軸直径Ｄよりも長くなっている。図３，図４に示すように、各凸部１９ａは各側壁１８ｂにおいて支軸１９の真下より後方（図中右下側）に所定角度傾斜した位置に一体突出形成されている。尚、各凸部１９ａの幅寸法Ｌは支軸１９の軸直径Ｄよりわずかに小さい寸法に形成しても良い（Ｄ＞Ｌ）。   As shown in FIGS. 1, 3, and 4, the support shaft 19 is formed in a columnar shape, and has the same diameter as the shaft diameter D on both sides (both side walls 18 b and 18 b side) of the outer periphery of the support shaft 19. Each of the fan-shaped convex portions 19a and 19a having a width dimension of L is formed so as to project integrally (D = L). As shown in FIG. 3, the total length H of the support shaft 19 and the convex portion 19a is longer than the shaft diameter D of the support shaft 19 by the thickness of the convex portion 19a. As shown in FIGS. 3 and 4, each convex portion 19 a is integrally projected at a position inclined at a predetermined angle from the bottom of the support shaft 19 to the rear (lower right side in the drawing) on each side wall 18 b. The width L of each convex portion 19a may be formed to be slightly smaller than the shaft diameter D of the support shaft 19 (D> L).

また、図２に示すように、連結孔１３は支軸１９の軸直径Ｄと同寸法以上の直径Ｒの円形に形成してある（Ｒ≧Ｄ）と共に、該連結孔１３には支軸１９の軸直径Ｄと同寸法以上の幅寸法Ｗで（Ｗ≧Ｄ）、円形の連結孔１３の直径Ｒと同寸法（Ｗ＝Ｒ）の開口部１３ａを連続して形成してある。図１，図２に示すように、連結孔１３及び開口部１３ａはアームピース１２の先端の下面１２ａより後方の上側（図中右上側）に向かって所定角度傾斜している。   As shown in FIG. 2, the connecting hole 13 is formed in a circular shape having a diameter R equal to or larger than the shaft diameter D of the support shaft 19 (R ≧ D), and the connecting shaft 13 has a support shaft 19. The opening 13a having the same dimension (W = R) as the diameter R of the circular connecting hole 13 is continuously formed with a width dimension W (W ≧ D) equal to or larger than the axial diameter D of the shaft. As shown in FIGS. 1 and 2, the connecting hole 13 and the opening 13 a are inclined at a predetermined angle toward the upper rear side (upper right side in the figure) from the lower surface 12 a at the tip of the arm piece 12.

さらに、図１，図２に示すように、アームピース１２の先端の両側面１２ｂ，１２ｂの連結孔１３及び開口部１３ａの下縁部（連結孔１３の両側の一対の凸部１９ａ，１９ａに対向する位置）には、ワイパアーム１１の回転完了時（図７に示す位置の時）、即ちワイパアーム１１がワイパ使用位置まで回転した時に、前記支軸１９に形成した各凸部１９ａに嵌め込まれて抜け止めされる凹部１３ｂをそれぞれ形成してある。この各凹部１３ｂは、開口部１３ａ側より連結孔１３側に沿って幅広になる溝状に形成してあり、図２に示すように、連結孔１３の直径Ｒと凹部１３ｂの寸法を合算した全幅寸法Ｋは支軸１９と各凸部１９ａとの全長Ｈよりも少し長くなるように設定してある。これにより、ワイパアーム１１の回転完了時に各凹部１３ｂと各凸部１９ａとは隙間なく嵌合されて係止されるようになっている。   Further, as shown in FIGS. 1 and 2, the connecting holes 13 on the side surfaces 12b and 12b at the front end of the arm piece 12 and the lower edge portions of the opening 13a (on the pair of convex portions 19a and 19a on both sides of the connecting hole 13). When the wiper arm 11 is completely rotated (at the position shown in FIG. 7), that is, when the wiper arm 11 is rotated to the wiper use position, it is fitted into each convex portion 19a formed on the support shaft 19. Recesses 13b that are prevented from coming off are formed. Each of the recesses 13b is formed in a groove shape that becomes wider from the opening 13a side along the connecting hole 13 side. As shown in FIG. 2, the diameter R of the connecting hole 13 and the dimension of the recess 13b are added together. The total width dimension K is set to be slightly longer than the total length H of the support shaft 19 and each convex portion 19a. Thereby, when the rotation of the wiper arm 11 is completed, the concave portions 13b and the convex portions 19a are fitted and locked without any gap.

尚、図７に示すように、アームピース１２の先端部は幅広に形成してあると共に、ワイパアーム１１の回転完了時にブレードレバー１８の装着孔１８ａ内に収容されるようになっている。また、図１〜図７に示すように、アームピース１２の先端の両側面１２ｂ，１２ｂの連結孔１３及び開口部１３ａの下縁部より少し離れた位置には、ワイパアーム１１の回動位置規制用の円弧状の溝部１２ｃを形成してある。この各溝部１２ｃ内に装着孔１８ａの両側壁１８ｂ，１８ｂに一体突出形成された円柱状の突起１８ｃがそれぞれ挿入されて、該各突起１８ｃが各溝部１２ｃ内の円弧状の凹部１２ｄ内を摺動することによりワイパアーム１１の回動量が規制されるようになっている。   As shown in FIG. 7, the distal end portion of the arm piece 12 is formed wide and is accommodated in the mounting hole 18 a of the blade lever 18 when the rotation of the wiper arm 11 is completed. Moreover, as shown in FIGS. 1-7, the rotation position restriction | limiting of the wiper arm 11 is located in the position a little apart from the connection hole 13 of the both ends 12b and 12b of the front-end | tip of the arm piece 12, and the lower edge part of the opening part 13a. An arcuate groove portion 12c is formed. Columnar projections 18c integrally formed on both side walls 18b, 18b of the mounting hole 18a are respectively inserted into the grooves 12c, and the projections 18c slide in the arcuate recesses 12d in the grooves 12c. By moving, the rotation amount of the wiper arm 11 is regulated.

以上実施形態の車両用ワイパ１０によれば、図１に示すように、ワイパアーム１１とワイパブレード１５とが分離された状態よりワイパアーム１１とワイパブレード１５を組み付ける場合には、図４に示すように、ブレードレバー１８の装着孔１８ａ内にワイパアーム１１のアームピース１２を略垂直に起立した状態でその先端の下面１２ａ側を差し込み、凸部１９ａの反対側の支軸１９の位置にアームピース１２の連結孔１３の開口部１３ａの位置を合わせる。   According to the vehicle wiper 10 of the above embodiment, as shown in FIG. 4, when the wiper arm 11 and the wiper blade 15 are assembled from the state where the wiper arm 11 and the wiper blade 15 are separated, as shown in FIG. The lower end 12a of the wiper arm 11 is inserted into the mounting hole 18a of the blade lever 18 in a state where the arm piece 12 is erected substantially vertically, and the lower end 12a of the tip of the wiper arm 11 is inserted into the mounting hole 18a. The position of the opening 13a of the connecting hole 13 is matched.

そして、図５に示すように、ブレードレバー１８の支軸１９にアームピース１２の連結孔１３の開口部１３ａを差し込んで該支軸１９に該連結孔１３を装着させ、図６に示すように、ブレードレバー１８の支軸１９を中心にワイパアーム１１をワイパ使用位置まで回転させると、図７に示すように、ワイパアーム１１の回転完了時に、支軸１９の両側の一対の凸部１９ａ，１９ａが連結孔１３の両側の一対の凹部１３ｂ，１３ｂに隙間なく嵌め込まれて抜け止めされて車両用ワイパ１０が組み付けられる。   Then, as shown in FIG. 5, the opening 13a of the connecting hole 13 of the arm piece 12 is inserted into the supporting shaft 19 of the blade lever 18, and the connecting hole 13 is attached to the supporting shaft 19, as shown in FIG. When the wiper arm 11 is rotated about the support shaft 19 of the blade lever 18 to the wiper use position, as shown in FIG. 7, when the rotation of the wiper arm 11 is completed, a pair of convex portions 19 a and 19 a on both sides of the support shaft 19 are formed. The vehicular wiper 10 is assembled by being fitted into the pair of recesses 13b, 13b on both sides of the connecting hole 13 with no gap and prevented from coming off.

このように、ブレードレバー１８の支軸１９を円柱状に形成すると共に、該支軸１９の外周の両側にその軸直径Ｄと同寸法の幅寸法Ｌを有した一対の凸部１９ａ，１９ａを一体突出形成し、アームピース１２の連結孔１３を支軸１９の軸直径Ｄと同寸法以上の直径Ｒの円形に形成すると共に、該連結孔１３に支軸１９の軸直径Ｄと同寸法以上の幅寸法Ｗの開口部１３ａを連続して形成し、かつ、連結孔１３の両側に一対の凸部１９ａ，１９ａがワイパアーム１１の回転完了時に嵌め込まれて抜け止めされる一対の凹部１３ｂ，１３ｂを形成したことにより、図４に示すように、円柱状の支軸１９に連結孔１３の開口部１３ａを差し込んで、図５に示すように、該支軸１９に連結孔１３を装着した後で、図７に示すように、ワイパアーム１１をワイパ使用位置まで回転させる簡単な作業により支軸１９の両側の一対の凸部１９ａ，１９ａに連結孔１３の両側の一対の凹部１３ｂ，１３ｂを嵌め込んで係止してワイパアーム１１とワイパブレード１５のブレードレバー１８とを確実に連結することができると共に、ワイパアーム１１とワイパブレード１５のブレードレバー１８との間、即ち、連結孔１３と支軸１９との間のガタツキの発生をより確実に防止することができる。   In this way, the support shaft 19 of the blade lever 18 is formed in a columnar shape, and a pair of convex portions 19 a and 19 a having a width L that is the same as the shaft diameter D are formed on both sides of the outer periphery of the support shaft 19. The connecting hole 13 of the arm piece 12 is formed in a circular shape with a diameter R equal to or larger than the shaft diameter D of the support shaft 19, and the connecting hole 13 has a diameter equal to or larger than the shaft diameter D of the support shaft 19. A pair of recesses 13b, 13b that are continuously formed with an opening 13a having a width dimension W and that are fitted on both sides of the connecting hole 13 to prevent the wiper arm 11 from being fitted and prevented from coming off. 4, after the opening 13a of the connecting hole 13 is inserted into the cylindrical support shaft 19 as shown in FIG. 4, and the connecting hole 13 is attached to the support shaft 19 as shown in FIG. As shown in FIG. The wiper arm 11 and the wiper blade 15 are fitted by engaging the pair of concave portions 13b, 13b on both sides of the connecting hole 13 with the pair of convex portions 19a, 19a on both sides of the support shaft 19 by a simple operation of rotating to the use position of the wiper. The blade lever 18 can be reliably connected to the blade lever 18 of the wiper arm 11 and the wiper blade 15, that is, the backlash between the connecting hole 13 and the support shaft 19 can be prevented more reliably. can do.

また、支軸１９に従来のようなカット部分を形成しなくても済むため、構造的に安定したワイパアーム１１とブレードレバー１８との連結状態を低コストで得ることができる。これにより、ワイパアーム１１とブレードレバー１８との連結状態が不用意に解除されることがない。   Further, since it is not necessary to form a conventional cut portion on the support shaft 19, a structurally stable connection state between the wiper arm 11 and the blade lever 18 can be obtained at low cost. Thereby, the connection state of the wiper arm 11 and the blade lever 18 is not inadvertently released.

尚、前記実施形態によれば、支軸の両側に凸部を形成し、連結孔の両側に凹部を形成したが、支軸の中央に更に凸部を形成し、連結孔の中央に凹部を形成しても良い。また、支軸の真下の後方に凸部を形成したが、支軸の真上の前方に凸部を形成しても良い。   In addition, according to the said embodiment, although the convex part was formed in the both sides of a spindle and the recessed part was formed in the both sides of a connection hole, a convex part was further formed in the center of a spindle, and a recessed part was formed in the center of a connection hole. It may be formed. Moreover, although the convex part was formed in the back right under a spindle, you may form a convex part in the front right above a spindle.

本発明の一実施形態の車両用ワイパの要部を示す分解斜視図である。It is a disassembled perspective view which shows the principal part of the wiper for vehicles of one Embodiment of this invention. 上記車両用ワイパに用いられるワイパアームの先端部の正面図である。It is a front view of the front-end | tip part of the wiper arm used for the said wiper for vehicles. 上記車両用ワイパに用いられるワイパブレードのブレードレバーの要部の断面図である。It is sectional drawing of the principal part of the blade lever of the wiper blade used for the said wiper for vehicles. 上記ブレードレバーの支軸にワイパアームの連結孔が装着される直前の状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state immediately before the connection hole of a wiper arm is mounted | worn with the spindle of the said blade lever. 上記ブレードレバーの支軸にワイパアームの連結孔が装着された状態を一部断面で示す正面図である。It is a front view which shows the state by which the connection hole of the wiper arm was mounted | worn with the spindle of the said blade lever in a partial cross section. 上記ワイパアームの回転途中の状態を一部断面で示す正面図である。It is a front view which shows the state in the middle of rotation of the said wiper arm in a partial cross section. 上記ワイパアームをワイパ使用位置まで回転させた状態を一部断面で示す正面図である。It is a front view which shows the state which rotated the said wiper arm to the wiper use position in a partial cross section. 従来の車両用ワイパの正面図である。It is a front view of the conventional vehicle wiper. （ａ）は上記従来の車両用ワイパのブレードレバーの支軸にワイパアームの連結孔が装着される直前の状態を示す主要部の断面図、（ｂ）は同ワイパアームの回転途中の状態を示す主要部の断面図、（ｃ）は同ワイパアームをワイパ使用位置まで回転させた状態を示すの主要部の断面図である。(A) is sectional drawing of the principal part which shows the state just before mounting the connection hole of a wiper arm to the spindle of the blade lever of the said conventional vehicle wiper, (b) is the principal which shows the state in the middle of rotation of the wiper arm FIG. 4C is a cross-sectional view of the main part showing a state where the wiper arm is rotated to the wiper use position. 上記従来の車両用ワイパのブレードレバーに用いられる支軸の断面図である。It is sectional drawing of the spindle used for the blade lever of the said conventional vehicle wiper.

符号の説明Explanation of symbols

１０ 車両用ワイパ
１１ ワイパアーム
１２ アームピース（先端部）
１３ 連結孔
１３ａ 開口部
１３ｂ 凹部
１５ ワイパブレード
１８ ブレードレバー
１８ａ 装着孔
１８ｂ 側壁
１９ 支軸
１９ａ 凸部
Ｄ 軸直径
Ｌ 凸部の幅寸法
Ｒ 連結孔の直径
Ｗ 開口部の幅寸法 DESCRIPTION OF SYMBOLS 10 Wiper for vehicles 11 Wiper arm 12 Arm piece (tip part)
13 Connecting hole 13a Opening part 13b Recessing part 15 Wiper blade 18 Blade lever 18a Mounting hole 18b Side wall 19 Support shaft 19a Protruding part D Shaft diameter L Protruding part width dimension R Connecting hole diameter W Opening part width dimension

Claims (2)

ワイパブレードのブレードレバーに装着孔を形成し、この装着孔の両側壁に支軸を架設する一方、ワイパアームの先端部に開口部を有した連結孔を形成し、前記ブレードレバーの装着孔に前記ワイパアームの先端部を差し込むと共に、前記ブレードレバーの支軸に前記ワイパアームの連結孔の開口部を差し込んで該支軸に該連結孔を装着させ、かつ前記ブレードレバーの支軸を中心に前記ワイパアームをワイパ使用位置まで回転させることによってワイパブレードとワイパアームを分離することなく連結した車両用ワイパにおいて、
前記支軸を円柱状に形成すると共に、該支軸の外周にその軸直径と同寸法以下の幅寸法を有した凸部を形成する一方、前記連結孔を前記支軸の軸直径と同寸法以上の直径の円形に形成すると共に、該連結孔に前記支軸の軸直径と同寸法以上の幅寸法の開口部を連続して形成し、かつ前記ワイパアームを前記支軸を中心にワイパ使用位置まで回転させた際に前記支軸の凸部が嵌め込まれて前記ワイパアームが前記ブレードレバーに抜け止めされる凹部を前記連結孔に形成したことを特徴とする車両用ワイパ。 A mounting hole is formed in the blade lever of the wiper blade, and support shafts are erected on both side walls of the mounting hole, while a connecting hole having an opening is formed at the tip of the wiper arm. Insert the tip of the wiper arm, insert the opening of the connecting hole of the wiper arm into the support shaft of the blade lever, attach the connecting hole to the support shaft, and attach the wiper arm around the support shaft of the blade lever. In the wiper for a vehicle connected without separating the wiper blade and the wiper arm by rotating to the wiper use position,
The support shaft is formed in a columnar shape, and a convex portion having a width dimension equal to or less than the shaft diameter is formed on the outer periphery of the support shaft, while the connecting hole is formed in the same dimension as the shaft diameter of the support shaft. A circular opening having the above diameter is formed, and an opening having a width equal to or larger than the shaft diameter of the support shaft is continuously formed in the connecting hole, and the wiper arm is positioned at a position where the wiper is used around the support shaft. A vehicular wiper characterized in that a concave portion is formed in the connecting hole so that the convex portion of the support shaft is fitted and the wiper arm is prevented from coming off by the blade lever when rotated to the connecting hole. 請求項１記載の車両用ワイパであって、
前記支軸の両側に前記凸部をそれぞれ一体突出形成すると共に、前記連結孔の該各凸部に対向する位置に前記凹部をそれぞれ形成したことを特徴とする車両用ワイパ。 The vehicle wiper according to claim 1,
The vehicular wiper according to claim 1, wherein the protrusions are integrally formed on both sides of the support shaft, and the recesses are formed at positions facing the protrusions of the connection hole.
JP2003305209A 2003-08-28 2003-08-28 Vehicle wiper Expired - Fee Related JP4038798B2 (en)

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KR101245363B1 (en) 2013-01-24 2013-03-19 동양기전 주식회사 Wiper blade apparatus provided with fool-proof assembly structure
FR3014056B1 (en) * 2013-12-03 2017-03-31 Valeo Systemes Dessuyage BRUSH-BRUSH CONNECTION DEVICE, WIPER BLADE AND WIPER ASSEMBLY
CN103707853B (en) * 2014-01-13 2016-08-31 丹阳威利塑胶有限公司 A kind of wiper of rear automobile window
KR101637662B1 (en) * 2014-07-14 2016-07-12 현대자동차주식회사 Wiper apparatus with washer nozzle
FR3043616B1 (en) * 2015-11-13 2017-12-15 Valeo Systemes Dessuyage ARRANGEMENT FOR A CONNECTION SYSTEM FOR A WIPER BLADE TO A DRIVING ARM

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CN102161336A (en) * 2010-02-18 2011-08-24 株式会社博世电装 Connecting device for connecting wiper blade to wiper arm
CN102161336B (en) * 2010-02-18 2013-11-06 株式会社博世电装 Connecting device for connecting wiper blade to wiper arm
CN102529894A (en) * 2010-12-22 2012-07-04 广东可普汽车配件有限公司 Wiper blade assembly structure
US8978192B2 (en) 2010-12-22 2015-03-17 Cap Corporation Wiper blade assembly structure
CN102529894B (en) * 2010-12-22 2015-07-22 广东可普汽车配件有限公司 Wiper blade assembly structure

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