WO2022215405A1 - Wiper blade - Google Patents

Wiper blade Download PDF

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Publication number
WO2022215405A1
WO2022215405A1 PCT/JP2022/009624 JP2022009624W WO2022215405A1 WO 2022215405 A1 WO2022215405 A1 WO 2022215405A1 JP 2022009624 W JP2022009624 W JP 2022009624W WO 2022215405 A1 WO2022215405 A1 WO 2022215405A1
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WO
WIPO (PCT)
Prior art keywords
wall
vertebra
wiper blade
side wall
arm
Prior art date
Application number
PCT/JP2022/009624
Other languages
French (fr)
Japanese (ja)
Inventor
伸敬 中島
Original Assignee
株式会社ミツバ
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Publication date
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Publication of WO2022215405A1 publication Critical patent/WO2022215405A1/en

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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
    • B60S1/38—Wiper blades

Definitions

  • the present invention relates to a wiper blade that is attached to a wiper arm and wipes the windshield.
  • the wiper blade is equipped with a blade rubber for wiping water off the windshield, which is the wiping surface of the vehicle, and a vertebra that presses the blade rubber against the windshield.
  • a wiper blade as described in Patent Document 1, there is a form provided with a blade body composed of a backing as a vertebra and a case in which the backing is incorporated.
  • a connection lever is provided on the blade body, and the wiper arm is connected to a clip rotatably attached to the connection lever.
  • a support part as a movement restricting member is attached to the connecting lever in order to restrict the longitudinal movement of the vertebra with respect to the connecting lever.
  • the support part has a central portion that contacts the backing and arm portions at both ends thereof.
  • the movement of the connecting lever is restricted by aligning them.
  • An object of the present invention is to improve the ease of assembly of wiper blades.
  • a wiper blade according to the present invention is a wiper blade attached to a wiper arm that is oscillatingly driven to perform a reciprocating wiping action on a wiping surface, comprising: an arm connecting member connected to the wiper arm; a vertebra to which a portion is attached; a stopper attached to the arm connecting member and the vertebra; and a blade rubber attached to the vertebra for wiping the wiping surface, wherein the arm connecting member is attached to the vertebra.
  • Two side wall portions which are arranged opposite to each other with a gap in the width direction, each having a groove, and a base wall portion which is arranged between the two side wall portions and integrally provided with the two side wall portions.
  • the stopper includes a first mounting wall inserted into the groove of one of the side walls, a second mounting wall housed in the groove of the other side wall, and the second a bottom wall portion disposed at the vertebra-side end portion of one mounting wall and the second mounting wall and provided integrally with the first mounting wall and the second mounting wall; and a protrusion protruding toward the vertebrae, the vertebrae having a positioning hole into which the protrusions are inserted.
  • the stopper for restricting the movement of the vertebra with respect to the arm connecting member is assembled to the holder by inserting the mounting wall of the stopper into the groove provided in the side wall of the arm connecting member, so that the wiper blade can be easily assembled. , and the assembly workability can be improved.
  • FIG. 2 is an enlarged perspective view of the central portion of the wiper blade of Figure 1;
  • FIG. 3 is a perspective view showing the back side of FIG. 2;
  • 2 is an enlarged cross-sectional view taken along line AA in FIG. 1;
  • FIG. Figure 3 is a perspective view of the central portion of the wiper blade with the holder shown in Figure 2 removed;
  • FIG. 6 is a perspective view showing the surface side of the stopper shown in FIG. 5;
  • It is a perspective view which shows the back side of a stopper. 3 is an enlarged cross-sectional view taken along line BB in FIG. 2;
  • FIG. 3 is an enlarged cross-sectional view taken along line CC in FIG. 2;
  • FIG. 3 is an enlarged cross-sectional view taken along line DD in FIG. 2;
  • FIG. 4 is a plan view showing a holder and stoppers attached to the holder;
  • FIG. 10 is a plan view showing a state in which a stopper according to another embodiment is attached to a holder;
  • the term “longitudinal direction” used below refers to the longitudinal direction of the wiper blade 10 (horizontal direction in FIGS. 11 and 12), which is the same direction as the longitudinal direction of the blade body 25 and the vertebrae 12a and 12b.
  • the “width direction” refers to the width direction of the wiper blade 10 (horizontal direction in FIGS. 4, 8 to 10), which is the same as the width direction of the blade body 25 and the vertebrae 12a, 12b.
  • the wiper blade 10 includes a blade rubber 11 and two vertebrae 12a, 12b.
  • the blade rubber 11 is made of rubber and manufactured by compression molding, extrusion molding, or the like.
  • the vertebrae 12a and 12b are plate springs made of stainless steel plates or the like, and the blade rubber 11 is arranged between the two vertebrae 12a and 12b.
  • the blade rubber 11 has a body portion 14 provided with a holding groove 13 into which the widthwise inner portions of the vertibras 12a and 12b are inserted, and a lip portion 15 that contacts the windshield (not shown).
  • a neck portion 16 is provided between the body portion 14 and the lip portion 15 .
  • the neck portion 16 is narrower than the lip portion 15 and has more flexibility than the lip portion 15 .
  • the lip portion 15 is tilted by the movement of the blade rubber 11 in the outward and return directions, and rainwater, dust, etc. adhering to the window glass are wiped away.
  • a case 17 is attached to the vertebrae 12a and 12b except for the central portion in the longitudinal direction.
  • the case 17, as shown in FIG. It has a fin portion 17b integrally provided on the surface side of the base portion 17a.
  • the case base 17a is provided with a holding groove 18 into which the widthwise outer portions of the vertebrae 12a and 12b are inserted, and the vertebrae 12a and 12b are covered by the case 17.
  • the case base portion 17a is made of a high-hardness resin material such as plastic
  • the fin portion 17b is made of an elastic material, such as elastomer, which is lower in hardness than the case base portion 17a.
  • the case 17 has a case base portion 17a with high hardness and a fin portion 17b with low hardness, which are integrally formed by two-color molding.
  • the boundary between the case base portion 17a and the fin portion 17b is indicated by a dashed line.
  • both ends of the wiper blade 10 are provided with caps 19, and the caps 19 are provided with protrusions that are inserted into mounting holes (not shown) provided in the vertebrae 12a and 12b. .
  • a cap 19 covers both ends of the vertebrae 12 a and 12 b and the outer end of the case 17 .
  • a holder 20 (arm connecting member) made of resin is attached to the central portion in the longitudinal direction of the vertibras 12a and 12b.
  • the holder 20 is arranged between two side walls 21 and 22 facing each other with a gap in the width direction of the vertibras 12a and 12b.
  • a base wall portion 23 provided integrally with the side wall portions 21 and 22 .
  • the base wall portion 23 is integrally provided with a fixed wall 24 that partially covers the rear side of the vertebrae 12a and 12b.
  • the side walls 21 and 22 are provided with housing grooves 44 and 45 (groove portions) into which stoppers 40 (to be described later) are inserted.
  • the longitudinally inner ends of the two left and right cases 17 are covered with holders 20, as shown in FIGS.
  • the blade body 25 is configured by the vertibras 12a and 12b, the case 17, the cap 19, and the holder 20.
  • the holder 20 is connected to the distal end portion of the wiper arm 26 indicated by the two-dot chain line in FIG. 1 via a clip 28 which will be described later.
  • the base end of the wiper arm 26 is fixed to a pivot shaft that is oscillatingly driven by a wiper motor (not shown), and the blade body 25 is oscillated through the wiper arm 26 by the drive of the wiper motor to perform a reciprocating wiping operation. As a result, rainwater, dust, etc. adhering to the windshield, rear glass, etc. of the vehicle are wiped away.
  • the blade rubber 11 contacts the windshield and the fin portion 17b of the case 17 faces away from the windshield.
  • the windshield side of the blade body is defined as the rear side
  • the side of the blade body 25 opposite to the windshield is defined as the front side.
  • the vertibras 12a and 12b are previously curved with a predetermined curvature in a free state where no external force is applied. Specifically, the curvature of the vertebrae 12a, 12b is set to a curvature smaller than the curvature of the window glass. Therefore, when the wiper arm 26 presses the blade main body 25 against the windshield, the vertebrae 12a and 12b impart elastic force to the blade rubber 11 in the direction toward the wiping surface, and the lip portion 15 is brought into close contact with the windshield over the entire longitudinal direction. be. As a result, the window glass can be reliably wiped off. 1, the blade body 25 with the vertices 12a, 12b is shown straight.
  • FIG. 8 is an enlarged cross-sectional view taken along line BB in FIG. 2, and as shown in FIG. , and the support pin 27 extends in the width direction of the blade body 25 .
  • the support pin 27 is integrally insert-molded with the resin holder 20 when the holder 20 is molded. Both ends of the support pin 27 are provided with large-diameter portions 27a and 27b embedded in the side wall portions 21 and 22, and the outer peripheral surfaces of the large-diameter portions 27a and 27b have adhesiveness to the resin material forming the holder 20. In order to increase the .sigma.
  • a resin clip 28 (arm connecting member) is rotatably attached to the support pin 27 .
  • the clip 28 has sidewalls 31, 32 disposed inside and extending along the sidewalls 21, 22 of the holder 20, respectively.
  • a ceiling wall portion 33 is integrally provided between the portions 31 and 32 , and a pin support portion 34 is integrally provided at one end of the ceiling wall portion 33 .
  • the pin support portion 34 is provided with a notch portion 36 having a width smaller than the inner diameter of the inner surface 35 of the pin support portion 34 .
  • clip 28 is assembled to holder 20 .
  • the tip of the wiper arm 26 includes a portion extending along the outer surface of the top wall portion 33 and a folded portion (not shown) that curves from the surface side to the back side of the pin support portion 34 and extends to the back surface of the top wall portion 33. and are provided.
  • the folded portion (not shown) and the clip 28 are engaged by engaging portions (not shown) provided respectively, and the wiper arm 2 is connected to the clip 28 .
  • a stopper 40 is attached to the holder 20 as shown in FIG. As shown in FIGS. 5 and 6, the stopper 40 has a first mounting wall 41 and a second mounting wall 42 facing each other across the width of the blade body 25. It is arranged between the walls 41 and 42 and has a bottom wall portion 43 provided integrally with the mounting walls 41 and 42 . Both ends of the bottom wall portion 43 along the width direction of the blade body 25 are connected to the rear side ends of the first mounting wall 41 and the second mounting wall 42, respectively, and extend along the width direction of the blade body 25.
  • the cross-sectional shape of the stopper 40 is U-shaped.
  • the first mounting wall 41 of the stopper 40 is inserted into the housing groove 44 of the holder 20 and the second mounting wall 42 is inserted into the housing groove 45 of the holder 20 .
  • the stopper 40 is fixed to the holder 20 and restricted from moving in the longitudinal direction.
  • a mounting wall 41 attached to one side wall portion 21 is referred to as a first mounting wall 41
  • a mounting wall 42 attached to the other side wall portion 22 is referred to as a second mounting wall 42 .
  • the clip 28 is arranged between the mounting walls 41 and 42 in the width direction of the blade body 25 .
  • clearances are provided between the mounting walls 41 and 42 and the side wall portions 31 and 32 of the clip 28 to such an extent that the rotation of the clip 28 with respect to the holder 20 is not hindered.
  • FIG. 6 is a perspective view showing the front side of the stopper 40 shown in FIG. 5, and
  • FIG. 7 is a perspective view showing the rear side of the stopper 40.
  • FIG. 9 is an enlarged sectional view along line CC in FIG.
  • the bottom wall portion 43 of the stopper 40 is provided with two projections 46a and 46b at one end in the longitudinal direction of the blade body 25. , 46b protrude from the rear surface of the bottom wall portion 43 toward the vertices 12a and 12b.
  • the projections 46a and 46b are inserted into positioning holes 47a and 47b (positioning holes) formed in the vertebrae 12a and 12b, respectively. Therefore, the vertibras 12a and 12b are fixed to the stopper 40 fixed to the holder 20, and the longitudinal movement of the partibras 12a and 12b with respect to the holder 20 is prevented.
  • the stopper 40 can be attached to the holder 20 by inserting the attachment walls 41 and 42 into the accommodation grooves 44 and 45 provided in the side wall portions 21 and 22 of the holder 20, so that the stopper 40 can be easily attached to the holder. 20 can be installed.
  • the bottom wall portion 43 is provided at the rear end portion of the mounting walls 41 and 42 , a space for a worker to grip the mounting walls 41 and 42 when attaching the stopper 40 to the holder 20 can be secured. Therefore, the assembling workability of the wiper blade 10 can be improved.
  • FIG. 10 is an enlarged cross-sectional view along line DD in FIG. 2.
  • Engagement projections 48 and 49 are provided on the inner surfaces of side wall portions 21 and 22 of holder 20, respectively, so as to protrude inward in the width direction.
  • Inclined surfaces 48a, 49a inclined toward the vertibras 12a, 12b are formed on the surface side of the engaging projections 48, 49, and engaging surfaces 48b, 49b are formed on the rear side thereof.
  • the amount of protrusion of the engaging protrusion 48 toward the side wall 22 increases toward the back side
  • the amount of protrusion of the engaging protrusion 49 toward the side wall 21 increases toward the back side.
  • Mounting walls 41 and 42 of stopper 40 are provided with engaging arms 51 and 52 (engaging concave portions).
  • the respective engaging arms 51 and 52 are displaced in the width direction of the blade body 25 with the central portion of the mounting walls 41 and 42 in FIG. 6 as the displacement center P. It has two freely movable arm pieces 53, and the distal ends of the arm pieces 53 protrude inside the stopper 40 toward the vertebrae 12a and 12b.
  • engaging pieces 54a and 54b are provided as shown in FIG.
  • the positions of the engaging pieces 54a and 54b in the width direction correspond to the positions of the inclined surfaces 48a and 49a of the engaging protrusions 48 and 49, respectively, as shown in FIG. 42 is inserted into the receiving grooves 44, 45 of the holder 20, the engaging pieces 54a, 54b of the engaging arms 51, 52 are guided by the inclined surfaces 48a, 49b and are displaced inwardly of the stopper 40.
  • the mounting walls 41, 42 are inserted into the housing grooves 44, 45, the engaging pieces 54a, 54b are engaged or hooked on the engaging surfaces 48b, 49b as shown in FIG. Snap-fitting the engagement arms 51 and 52 to the engagement projections 48 and 49 prevents the stopper 40 from coming off the holder 20 .
  • the engaging arms 51 and 52 have a center of displacement P that is substantially central in the vertical direction of the mounting walls 41 and 42, and have a long dimension up to the engaging pieces 54a and 54b.
  • the amount of displacement of the tips of the engaging arms 51 and 52 when inserting the stoppers 41 and 42 into the receiving grooves 44 and 45 can be increased, and the stopper 40 can be easily attached to the holder 20 with a small pushing force.
  • the engagement areas between the engagement pieces 54a, 54b and the engagement surfaces 48b, 49b can be increased, and the stopper 40 can be reliably prevented from coming off the holder 20.
  • each engaging arm 51, 52 is formed by two arm pieces 53, even if the engaging area of the engaging piece 54a, 54b is increased, the engaging arm 51, 52 at the time of insertion can be made small. It can be easily displaced by pressing force.
  • the longitudinal central portions of the vertebrae 12a and 12b are arranged between the base wall portion 23 and the fixed wall 24 of the holder 20.
  • the mounting walls 41 , 42 of the stopper 40 are inserted into the receiving grooves 44 , 45 provided in the side walls 21 , 22 of the holder 20 .
  • the projections 46a and 46b of the stopper 40 are inserted into the positioning holes 47a and 47b of the vertebrae 12a and 12b, and the holder 20 is fixed to the vertebrae 12a and 12b.
  • the clip 28 is attached to the support pin 27 of the holder 20, and the clip 28 is arranged between the mounting walls 41 and 42 of the stopper 40 as shown in FIG. This prevents the engagement pieces 54a, 54b of the engagement arms 51, 52 from coming off the engagement surfaces 48b, 49b.
  • the cases 17 are inserted from both sides in the longitudinal direction of the vertibras 12a and 12b, and the inner ends of the cases 17 in the longitudinal direction are placed at positions where they are covered with both ends in the longitudinal direction of the holder 20.
  • a cap 19 is attached to one longitudinal end of each of the vertibras 12a and 12b.
  • the vertebrae 12a, 12b are inserted into the holding grooves 13 of the blade rubber 11 from the other end in the longitudinal direction of the vertebrae 12a, 12b toward the one end in the longitudinal direction.
  • the cap 19 is attached to the other end in the longitudinal direction of the vertebrae 12a, 12b.
  • the stopper 40 can be fixed to the holder 20 by providing the engaging arms on at least one of the mounting walls. .
  • FIG. 11 is a plan view showing the holder 20 and the stopper 40 attached to the holder 20.
  • the mounting walls 41 and 42 have projecting portions 55 projecting outward in the longitudinal direction from the bottom wall portion 43 at both ends in the longitudinal direction. That is, the width dimension of the mounting walls 41 and 42 in the longitudinal direction of the blade body 25 is set larger than the width dimension of the bottom wall portion 43 .
  • the side wall portions 21 and 22 of the holder 20 are provided with guide portions 56 that protrude inward in the longitudinal direction from the width direction inner end portions and the longitudinal direction end portions of the accommodation grooves 44 and 45 .
  • the projecting portion 55 is arranged between the guide portion 56 and the accommodation grooves 44 and 45 in the width direction of the blade body 25 . Accordingly, when attaching the stopper 40 to the holder 20 , the mounting walls 41 and 42 can be guided by the guide portions 56 and easily inserted into the receiving grooves 44 and 45 . Moreover, since the mounting walls 41 and 42 are prevented from being displaced so as to fall inward by the guide portion 56, it is possible to reliably prevent the stopper 40 from coming off.
  • FIG. 12 is a plan view showing a stopper 40 of another embodiment, and in FIG. 12, members common to the stopper 40 described above are denoted by the same reference numerals.
  • the width dimension of the first mounting wall 41 in the longitudinal direction of the blade body 25 is set larger than the width dimension of the second mounting wall 42 by the dimension L.
  • the width dimensions of the receiving grooves 44 and 45 into which the mounting walls 41 and 42 are inserted are also different corresponding to the width dimensions of the mounting walls 41 and 42, and the width dimension of the mounting wall 41 is longer than the mounting wall 42. is set. In this way, by making the first mounting wall 41 and the second mounting wall 42 asymmetrical with respect to the center line of the blade body 25 in the width direction of the bottom wall portion 43, the direction of the stopper 40 is incorrect.
  • the stopper 40 is attached to the holder 20, the protrusions 46a and 46b are securely inserted into the positioning holes 47a and 47b, and the engagement pieces 54a and 54b are engaged with the engagement surfaces 48b and 49b. engaged.
  • the widthwise dimension of the projecting portion 55 may be increased.
  • the wiper blade 10 is applied to a wiper device for removing rainwater and dust adhering to the windshield and rear glass of a vehicle such as an automobile.
  • the present invention is not limited to this, and can be applied to wiper devices mounted on ships, aircraft, railway vehicles, and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

This invention is intended to make it easier to assemble a wiper blade. A wiper blade 10 comprises an arm-linking member 20, vertebrae 12a, 12b, a stopper 40, and a blade rubber 11. The arm-linking member 20 has two side wall parts 21, 22 that are each provided with a groove part and that are disposed opposing each other across a gap in the width direction of the vertebrae 12a, 12b, and a base wall part 23 provided integrally with the two side wall parts 21, 22. The stopper 40 has first attachment wall 41 inserted into a groove part 44, a second attachment wall 42 inserted into a groove part 45, a bottom wall part disposed on the vertebrae-side end parts of the attachment wall 41 and the attachment wall 42 and provided integrally with the attachment wall 41 and the attachment wall 42, and protrusions that protrude toward the vertebrae. The vertebrae have positioning holes into which the protrusions are inserted.

Description

ワイパブレードwiper blade
　本発明は、ワイパアームに取り付けられてウインドガラスを払拭するワイパブレードに関する。 The present invention relates to a wiper blade that is attached to a wiper arm and wipes the windshield.
　ワイパブレードは、車両の払拭面であるウインドガラスに付着した水等を払拭するためのブレードラバーと、ブレードラバーをウインドガラスに向けて押し付けるバーティブラとを備えている。ワイパブレードとしては、特許文献１に記載されるように、バーティブラとしてのバッキングとバッキングが組み込まれるケースとにより構成されるブレード本体を備える形態がある。ブレード本体には連結レバーが設けられ、連結レバーに回動可能に装着されるクリップにワイパアームが連結される。バーティブラが連結レバーに対して長手方向に移動するのを規制するために、連結レバーには移動規制部材としてのサポートパーツが取り付けられている。 The wiper blade is equipped with a blade rubber for wiping water off the windshield, which is the wiping surface of the vehicle, and a vertebra that presses the blade rubber against the windshield. As a wiper blade, as described in Patent Document 1, there is a form provided with a blade body composed of a backing as a vertebra and a case in which the backing is incorporated. A connection lever is provided on the blade body, and the wiper arm is connected to a clip rotatably attached to the connection lever. A support part as a movement restricting member is attached to the connecting lever in order to restrict the longitudinal movement of the vertebra with respect to the connecting lever.
特開２０１３－８２４３１号公報JP 2013-82431 A
　上述したワイパブレードにおいては、サポートパーツはバッキングに接触する中央部とその両端部の腕部とを有し、中央部をバッキングに接触させて腕部をバッキングに形成されたバッキング係合部に係合させることにより、連結レバーの移動が規制される。しかしながら、腕部をバッキング係合部に係合させるには、サポートパーツを連結レバーの底部に落とし込む必要があり、ワイパブレードの組立作業を容易に行うことができないというおそれがある。 In the wiper blade described above, the support part has a central portion that contacts the backing and arm portions at both ends thereof. The movement of the connecting lever is restricted by aligning them. However, in order to engage the arm with the backing engaging portion, it is necessary to drop the support part into the bottom of the connecting lever, which may hinder the assembling work of the wiper blade.
　本発明の目的は、ワイパブレードの組立性を向上することにある。 An object of the present invention is to improve the ease of assembly of wiper blades.
　本発明のワイパブレードは、揺動駆動されるワイパアームに装着され、払拭面上で往復払拭動作するワイパブレードであって、前記ワイパアームに連結されるアーム連結部材と、前記アーム連結部材に長手方向中央部が装着されたバーティブラと、前記アーム連結部材および前記バーティブラに装着されたストッパと、前記バーティブラに装着され、前記払拭面を払拭するブレードラバーと、を備え、前記アーム連結部材は、前記バーティブラの幅方向に間隔を隔てて対向して配置され、それぞれ溝部を備えた２つの側壁部と、前記２つの側壁部の間に配置され、かつ前記２つの側壁部と一体に設けられた基壁部と、を有し、前記ストッパは、一方の前記側壁部の前記溝部に挿入される第１の取付壁、および他方の前記側壁部の前記溝部に収容される第２の取付壁と、前記第１の取付壁および前記第２の取付壁の前記バーティブラ側の端部に配置され、前記第１の取付壁および前記第２の取付壁と一体に設けられた底壁部と、前記底壁部に設けられ、前記バーティブラに向かって突出した凸部と、を有し、前記バーティブラは、前記凸部が挿入された位置決め孔部を有する。 A wiper blade according to the present invention is a wiper blade attached to a wiper arm that is oscillatingly driven to perform a reciprocating wiping action on a wiping surface, comprising: an arm connecting member connected to the wiper arm; a vertebra to which a portion is attached; a stopper attached to the arm connecting member and the vertebra; and a blade rubber attached to the vertebra for wiping the wiping surface, wherein the arm connecting member is attached to the vertebra. Two side wall portions which are arranged opposite to each other with a gap in the width direction, each having a groove, and a base wall portion which is arranged between the two side wall portions and integrally provided with the two side wall portions. and the stopper includes a first mounting wall inserted into the groove of one of the side walls, a second mounting wall housed in the groove of the other side wall, and the second a bottom wall portion disposed at the vertebra-side end portion of one mounting wall and the second mounting wall and provided integrally with the first mounting wall and the second mounting wall; and a protrusion protruding toward the vertebrae, the vertebrae having a positioning hole into which the protrusions are inserted.
　アーム連結部材に対するバーティブラの移動を規制するためのストッパは、アーム連結部材の側壁部に設けられた溝部にストッパの取付壁を挿入することにより、ホルダに組み付けられるので、ワイパブレードを容易に組み立てることができ、その組立作業性を向上させることができる。 The stopper for restricting the movement of the vertebra with respect to the arm connecting member is assembled to the holder by inserting the mounting wall of the stopper into the groove provided in the side wall of the arm connecting member, so that the wiper blade can be easily assembled. , and the assembly workability can be improved.
一実施の形態であるワイパブレード表面側を示す斜視図である。It is a perspective view which shows the wiper blade surface side which is one embodiment. 図１のワイパブレードの中央部分を示す拡大斜視図である。Figure 2 is an enlarged perspective view of the central portion of the wiper blade of Figure 1; 図２の背面側を示す斜視図である。FIG. 3 is a perspective view showing the back side of FIG. 2; 図１におけるＡ－Ａ線に沿う拡大断面図である。2 is an enlarged cross-sectional view taken along line AA in FIG. 1; FIG. 図２に示されたホルダを除去した状態におけるワイパブレードの中央部分を示す斜視図である。Figure 3 is a perspective view of the central portion of the wiper blade with the holder shown in Figure 2 removed; 図５に示されたストッパの表面側を示す斜視図である。FIG. 6 is a perspective view showing the surface side of the stopper shown in FIG. 5; ストッパの背面側を示す斜視図である。It is a perspective view which shows the back side of a stopper. 図２におけるＢ－Ｂ線に沿う拡大断面図である。3 is an enlarged cross-sectional view taken along line BB in FIG. 2; FIG. 図２におけるＣ－Ｃ線に沿う拡大断面図である。3 is an enlarged cross-sectional view taken along line CC in FIG. 2; FIG. 図２におけるＤ－Ｄ線に沿う拡大断面図である。FIG. 3 is an enlarged cross-sectional view taken along line DD in FIG. 2; ホルダとホルダに装着されたストッパとを示す平面図である。FIG. 4 is a plan view showing a holder and stoppers attached to the holder; 他の実施の形態であるストッパがホルダに装着された状態を示す平面図である。FIG. 10 is a plan view showing a state in which a stopper according to another embodiment is attached to a holder;
　以下、本発明の実施の形態を図面に基づいて詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
　ここで、以下に登場する「長手方向」とは、ワイパブレ―ド１０の長手方向（図１１、図１２における左右方向）を指し、ブレード本体２５やバーティブラ１２ａ、１２ｂの長手方向と同方向である。また、「幅方向」とは、ワイパブレ―ド１０の幅方向（図４、図８ないし図１０における左右方向）を指し、ブレード本体２５やバーティブラ１２ａ、１２ｂの幅方向と同方向である。 Here, the term "longitudinal direction" used below refers to the longitudinal direction of the wiper blade 10 (horizontal direction in FIGS. 11 and 12), which is the same direction as the longitudinal direction of the blade body 25 and the vertebrae 12a and 12b. . Further, the "width direction" refers to the width direction of the wiper blade 10 (horizontal direction in FIGS. 4, 8 to 10), which is the same as the width direction of the blade body 25 and the vertebrae 12a, 12b.
　図１～図３に示されるように、ワイパブレード１０はブレードラバー１１と２本のバーティブラ１２ａ、１２ｂとを備えている。ブレードラバー１１はゴム製であり、圧縮成形や押出成形などにより製造される。バーティブラ１２ａ、１２ｂは、ステンレス鋼板等からなる板ばねであり、ブレードラバー１１は２つのバーティブラ１２ａ、１２ｂの間に配置される。図４に示されるように、ブレードラバー１１はバーティブラ１２ａ、１２ｂの幅方向内側部が挿入される保持溝１３が設けられた本体部１４と、図示しないウインドガラスに接触するリップ部１５とを備えており、本体部１４とリップ部１５との間にはネック部１６が設けられている。ネック部１６は、リップ部１５よりも幅が狭く、リップ部１５よりも柔軟性を有している。これにより、ブレードラバー１１の往路側および復路側への移動により、リップ部１５が傾動されてウインドガラスに付着した雨水や埃等が払拭される。 As shown in FIGS. 1 to 3, the wiper blade 10 includes a blade rubber 11 and two vertebrae 12a, 12b. The blade rubber 11 is made of rubber and manufactured by compression molding, extrusion molding, or the like. The vertebrae 12a and 12b are plate springs made of stainless steel plates or the like, and the blade rubber 11 is arranged between the two vertebrae 12a and 12b. As shown in FIG. 4, the blade rubber 11 has a body portion 14 provided with a holding groove 13 into which the widthwise inner portions of the vertibras 12a and 12b are inserted, and a lip portion 15 that contacts the windshield (not shown). A neck portion 16 is provided between the body portion 14 and the lip portion 15 . The neck portion 16 is narrower than the lip portion 15 and has more flexibility than the lip portion 15 . As a result, the lip portion 15 is tilted by the movement of the blade rubber 11 in the outward and return directions, and rainwater, dust, etc. adhering to the window glass are wiped away.
　バーティブラ１２ａ、１２ｂには長手方向中央部分を除いてケース１７が装着されており、ケース１７は、図４に示されるように、バーティブラ１２ａ、１２ｂの幅方向外側部を覆うケース基部１７ａと、ケース基部１７ａの表面側に一体に設けられたフィン部１７ｂとを有している。ケース基部１７ａにはバーティブラ１２ａ、１２ｂの幅方向外側部分が挿入される保持溝１８が設けられており、バーティブラ１２ａ、１２ｂはケース１７により覆われる。ケース基部１７ａはプラスチック等の高硬度の樹脂材料からなり、フィン部１７ｂはエラストマー等のように、ケース基部１７ａよりも低硬度の弾性材料からなる。このように、ケース１７は、高硬度のケース基部１７ａと、低硬度からなるフィン部１７ｂとを有しており、二色成形により一体に成形される。図４においては、ケース基部１７ａとフィン部１７ｂとの境界部が破線で示されている。 A case 17 is attached to the vertebrae 12a and 12b except for the central portion in the longitudinal direction. The case 17, as shown in FIG. It has a fin portion 17b integrally provided on the surface side of the base portion 17a. The case base 17a is provided with a holding groove 18 into which the widthwise outer portions of the vertebrae 12a and 12b are inserted, and the vertebrae 12a and 12b are covered by the case 17. As shown in FIG. The case base portion 17a is made of a high-hardness resin material such as plastic, and the fin portion 17b is made of an elastic material, such as elastomer, which is lower in hardness than the case base portion 17a. Thus, the case 17 has a case base portion 17a with high hardness and a fin portion 17b with low hardness, which are integrally formed by two-color molding. In FIG. 4, the boundary between the case base portion 17a and the fin portion 17b is indicated by a dashed line.
　図１に示されるように、ワイパブレード１０の両端部にはキャップ１９が設けられており、バーティブラ１２ａ、１２ｂに設けられた図示しない取付孔に挿入される凸部がキャップ１９に設けられている。キャップ１９はバーティブラ１２ａ、１２ｂの両端部とケース１７の外側端部とを覆っている。 As shown in FIG. 1, both ends of the wiper blade 10 are provided with caps 19, and the caps 19 are provided with protrusions that are inserted into mounting holes (not shown) provided in the vertebrae 12a and 12b. . A cap 19 covers both ends of the vertebrae 12 a and 12 b and the outer end of the case 17 .
　バーティブラ１２ａ、１２ｂの長手方向中央部には樹脂製のホルダ２０（アーム連結部材）が装着される。ホルダ２０は、図２に示されるように、バーティブラ１２ａ、１２ｂの幅方向に間隔を隔てて対向して配置される２つの側壁部２１、２２と、これら側壁部２１、２２の間に配置され、これら側壁部２１、２２と一体に設けられた基壁部２３とを備えている。図３に示されるように、基壁部２３にはバーティブラ１２ａ、１２ｂの背面側を部分的に覆う固定壁２４が一体に設けられている。また、側壁部２１、２２には、後述するストッパ４０が挿入される収容溝４４、４５（溝部）が設けられている。図１において左右２つのケース１７の長手方向の内側端部は、図２および図３に示されるように、ホルダ２０により覆われている。 A holder 20 (arm connecting member) made of resin is attached to the central portion in the longitudinal direction of the vertibras 12a and 12b. As shown in FIG. 2, the holder 20 is arranged between two side walls 21 and 22 facing each other with a gap in the width direction of the vertibras 12a and 12b. , and a base wall portion 23 provided integrally with the side wall portions 21 and 22 . As shown in FIG. 3, the base wall portion 23 is integrally provided with a fixed wall 24 that partially covers the rear side of the vertebrae 12a and 12b. Further, the side walls 21 and 22 are provided with housing grooves 44 and 45 (groove portions) into which stoppers 40 (to be described later) are inserted. In FIG. 1, the longitudinally inner ends of the two left and right cases 17 are covered with holders 20, as shown in FIGS.
　このように、バーティブラ１２ａ、１２ｂとケース１７とキャップ１９とホルダ２０とにより、ブレード本体２５が構成される。ホルダ２０は、後述するクリップ２８を介して、図１に二点鎖線で示されるワイパアーム２６の先端部に連結される。ワイパアーム２６の基端部は、図示しないワイパモータにより揺動駆動されるピボット軸に固定されており、ブレード本体２５はワイパモータの駆動によってワイパアーム２６を介して揺動され、往復払拭動作される。これにより、車両のフロントガラスやリヤガラス等のウインドガラスに付着した雨水や埃等が払拭される。 Thus, the blade body 25 is configured by the vertibras 12a and 12b, the case 17, the cap 19, and the holder 20. The holder 20 is connected to the distal end portion of the wiper arm 26 indicated by the two-dot chain line in FIG. 1 via a clip 28 which will be described later. The base end of the wiper arm 26 is fixed to a pivot shaft that is oscillatingly driven by a wiper motor (not shown), and the blade body 25 is oscillated through the wiper arm 26 by the drive of the wiper motor to perform a reciprocating wiping operation. As a result, rainwater, dust, etc. adhering to the windshield, rear glass, etc. of the vehicle are wiped away.
　ブレード本体２５がワイパアーム２６に取り付けられた状態においては、ブレードラバー１１がウインドガラスに接触し、ケース１７のフィン部１７ｂはウインドガラスから離間する方向を向く。この明細書においては、ワイパブレード１０が払拭動作するときに、ブレード本体のウインドガラス側を背面側とし、ブレード本体２５のウインドガラスと反対の側を表面側とする。 When the blade body 25 is attached to the wiper arm 26, the blade rubber 11 contacts the windshield and the fin portion 17b of the case 17 faces away from the windshield. In this specification, when the wiper blade 10 performs a wiping operation, the windshield side of the blade body is defined as the rear side, and the side of the blade body 25 opposite to the windshield is defined as the front side.
　バーティブラ１２ａ、１２ｂは、外力を付加していない自由状態においては、予め所定の曲率に湾曲されている。具体的には、バーティブラ１２ａ、１２ｂの曲率は、ウインドガラスの曲率よりも小さい曲率に設定されている。したがって、ワイパアーム２６によりブレード本体２５をウインドガラスに押し付けると、バーティブラ１２ａ、１２ｂによりブレードラバー１１に払拭面に向かう方向の弾性力が付与されて、リップ部１５の長手方向全域がウインドガラスに密着される。これにより、ウインドガラスを確実に払拭することができる。なお、図１においては、バーティブラ１２ａ、１２ｂを備えたブレード本体２５は真っ直ぐとなって示されている。 The vertibras 12a and 12b are previously curved with a predetermined curvature in a free state where no external force is applied. Specifically, the curvature of the vertebrae 12a, 12b is set to a curvature smaller than the curvature of the window glass. Therefore, when the wiper arm 26 presses the blade main body 25 against the windshield, the vertebrae 12a and 12b impart elastic force to the blade rubber 11 in the direction toward the wiping surface, and the lip portion 15 is brought into close contact with the windshield over the entire longitudinal direction. be. As a result, the window glass can be reliably wiped off. 1, the blade body 25 with the vertices 12a, 12b is shown straight.
　図８は図２におけるＢ－Ｂ線に沿う拡大断面図であり、図８に示されるように、ホルダ２０の２つの側壁部２１、２２の間には金属製の支持ピン２７が取り付けられており、支持ピン２７はブレード本体２５の幅方向に伸びている。支持ピン２７はホルダ２０を成形するときに、樹脂製のホルダ２０と一体にインサート成形される。支持ピン２７の両端部には側壁部２１、２２に埋め込まれる大径部２７ａ、２７ｂが設けられており、大径部２７ａ、２７ｂの外周面にはホルダ２０を構成する樹脂材料との密着性を高めるために、図示しない筋状の溝が形成されている。 FIG. 8 is an enlarged cross-sectional view taken along line BB in FIG. 2, and as shown in FIG. , and the support pin 27 extends in the width direction of the blade body 25 . The support pin 27 is integrally insert-molded with the resin holder 20 when the holder 20 is molded. Both ends of the support pin 27 are provided with large- diameter portions 27a and 27b embedded in the side wall portions 21 and 22, and the outer peripheral surfaces of the large- diameter portions 27a and 27b have adhesiveness to the resin material forming the holder 20. In order to increase the .sigma.
　支持ピン２７には樹脂製のクリップ２８（アーム連結部材）が回動自在に装着される。図５および図８に示されるように、クリップ２８はホルダ２０の側壁部２１、２２の内側に配置されてそれぞれ側壁部２１、２２に沿って伸びる側壁部３１、３２を有し、これらの側壁部３１、３２の間には天壁部３３が一体に設けられ、天壁部３３の一端部にはピン支持部３４が一体に設けられている。ピン支持部３４には、図５に示されるように、ピン支持部３４の内面３５の内径よりも小さい幅の切欠き部３６が設けられている。 A resin clip 28 (arm connecting member) is rotatably attached to the support pin 27 . As shown in FIGS. 5 and 8, the clip 28 has sidewalls 31, 32 disposed inside and extending along the sidewalls 21, 22 of the holder 20, respectively. A ceiling wall portion 33 is integrally provided between the portions 31 and 32 , and a pin support portion 34 is integrally provided at one end of the ceiling wall portion 33 . As shown in FIG. 5, the pin support portion 34 is provided with a notch portion 36 having a width smaller than the inner diameter of the inner surface 35 of the pin support portion 34 .
　切欠き部３６を支持ピン２７に突き当ててクリップ２８を支持ピン２７に押し付けると、切欠き部３６の幅寸法がピン支持部３４の弾性変形により大きくなり、支持ピン２７がピン支持部３４の内面３５に挿入され、クリップ２８はホルダ２０に組み付けられる。ワイパアーム２６の先端部には、天壁部３３の外面に沿って伸びる部分と、ピン支持部３４の表面側から背面側に向けて湾曲し、天壁部３３の背面に伸びる不図示の折返し部とが設けられている。この不図示の折り返し部とクリップ２８とが、各々に設けられた不図示の係合部により係合し、ワイパアーム２がクリップ２８に連結される。 When the notch 36 abuts the support pin 27 and the clip 28 is pressed against the support pin 27 , the width of the notch 36 increases due to the elastic deformation of the pin support 34 , and the support pin 27 pushes against the pin support 34 . Inserted into inner surface 35 , clip 28 is assembled to holder 20 . The tip of the wiper arm 26 includes a portion extending along the outer surface of the top wall portion 33 and a folded portion (not shown) that curves from the surface side to the back side of the pin support portion 34 and extends to the back surface of the top wall portion 33. and are provided. The folded portion (not shown) and the clip 28 are engaged by engaging portions (not shown) provided respectively, and the wiper arm 2 is connected to the clip 28 .
　図２に示されるように、ホルダ２０にはストッパ４０が取り付けられている。ストッパ４０は、図５および図６に示されるように、ブレード本体２５の幅方向に間隔を隔てて対向し合う第１の取付壁４１と第２の取付壁４２とを有し、両方の取付壁４１、４２の間に配置され、これら取付壁４１、４２と一体に設けられた底壁部４３を有する。ブレード本体２５の幅方向に沿う底壁部４３の両端部は、第１の取付壁４１および第２の取付壁４２の背面側端部にそれぞれ連結されており、ブレード本体２５の幅方向に沿うストッパ４０の断面形状はＵ字形状となっている。 A stopper 40 is attached to the holder 20 as shown in FIG. As shown in FIGS. 5 and 6, the stopper 40 has a first mounting wall 41 and a second mounting wall 42 facing each other across the width of the blade body 25. It is arranged between the walls 41 and 42 and has a bottom wall portion 43 provided integrally with the mounting walls 41 and 42 . Both ends of the bottom wall portion 43 along the width direction of the blade body 25 are connected to the rear side ends of the first mounting wall 41 and the second mounting wall 42, respectively, and extend along the width direction of the blade body 25. The cross-sectional shape of the stopper 40 is U-shaped.
　図２に示されるように、ストッパ４０の第１の取付壁４１はホルダ２０の収容溝４４に挿入されており、第２の取付壁４２はホルダ２０の収容溝４５に挿入されている。それぞれの取付壁４１、４２が収容溝４４、４５に挿入されると、ストッパ４０はホルダ２０に固定され、長手方向に沿う移動が規制される。なお、一方の側壁部２１に取り付けられる取付壁４１を第１の取付壁４１とし、他方の側壁部２２に取り付けられる取付壁４２を第２の取付壁４２とする。 As shown in FIG. 2 , the first mounting wall 41 of the stopper 40 is inserted into the housing groove 44 of the holder 20 and the second mounting wall 42 is inserted into the housing groove 45 of the holder 20 . When the mounting walls 41 and 42 are inserted into the receiving grooves 44 and 45, respectively, the stopper 40 is fixed to the holder 20 and restricted from moving in the longitudinal direction. A mounting wall 41 attached to one side wall portion 21 is referred to as a first mounting wall 41 , and a mounting wall 42 attached to the other side wall portion 22 is referred to as a second mounting wall 42 .
　ブレード本体２５の幅方向において、クリップ２８は取付壁４１、４２の間に配置される。ここで、取付壁４１、４２とクリップ２８の側壁部３１、３２との間には、クリップ２８のホルダ２０に対する回転を阻害しない程度に隙間が設けられている。 The clip 28 is arranged between the mounting walls 41 and 42 in the width direction of the blade body 25 . Here, clearances are provided between the mounting walls 41 and 42 and the side wall portions 31 and 32 of the clip 28 to such an extent that the rotation of the clip 28 with respect to the holder 20 is not hindered.
　図６は図５に示されたストッパ４０の表面側を示す斜視図であり、図７はストッパ４０の背面側を示す斜視図である。図９は図２におけるＣ－Ｃ線に沿う拡大断面図である。 6 is a perspective view showing the front side of the stopper 40 shown in FIG. 5, and FIG. 7 is a perspective view showing the rear side of the stopper 40. FIG. FIG. 9 is an enlarged sectional view along line CC in FIG.
　図６および図７に示されるように、ストッパ４０の底壁部４３には、ブレード本体２５の長手方向の一方側の端部に２つの凸部４６ａ、４６ｂが設けられており、凸部４６ａ、４６ｂは底壁部４３の背面からバーティブラ１２ａ、１２ｂに向けて突出している。図９に示されるように、それぞれの凸部４６ａ、４６ｂはバーティブラ１２ａ、１２ｂに形成された位置決め孔４７ａ、４７ｂ（位置決め孔部）に挿入される。したがって、ホルダ２０に固定されるストッパ４０にバーティブラ１２ａ、１２ｂが固定され、パーティブラ１２ａ、１２ｂがホルダ２０に対して長手方向に移動することが防止される。 As shown in FIGS. 6 and 7, the bottom wall portion 43 of the stopper 40 is provided with two projections 46a and 46b at one end in the longitudinal direction of the blade body 25. , 46b protrude from the rear surface of the bottom wall portion 43 toward the vertices 12a and 12b. As shown in FIG. 9, the projections 46a and 46b are inserted into positioning holes 47a and 47b (positioning holes) formed in the vertebrae 12a and 12b, respectively. Therefore, the vertibras 12a and 12b are fixed to the stopper 40 fixed to the holder 20, and the longitudinal movement of the partibras 12a and 12b with respect to the holder 20 is prevented.
　このように、ホルダ２０の側壁部２１、２２に設けられた収容溝４４，４５に取付壁４１、４２を挿入することによりストッパ４０をホルダ２０に取り付けることができるので、ストッパ４０を容易にホルダ２０に装着することができる。また、取付壁４１、４２の背面側端部に底壁部４３を設けたことで、ストッパ４０をホルダ２０に取り付ける際に、作業者が取付壁４１、４２を把持するスペースを確保できる。よって、ワイパブレード１０の組立作業性を向上させることができる。 As described above, the stopper 40 can be attached to the holder 20 by inserting the attachment walls 41 and 42 into the accommodation grooves 44 and 45 provided in the side wall portions 21 and 22 of the holder 20, so that the stopper 40 can be easily attached to the holder. 20 can be installed. In addition, since the bottom wall portion 43 is provided at the rear end portion of the mounting walls 41 and 42 , a space for a worker to grip the mounting walls 41 and 42 when attaching the stopper 40 to the holder 20 can be secured. Therefore, the assembling workability of the wiper blade 10 can be improved.
　図１０は図２におけるＤ－Ｄ線に沿う拡大断面図であり、ホルダ２０の側壁部２１、２２の内面にはそれぞれ係合突起４８、４９が幅方向内方に突出して設けられている。係合突起４８、４９の表面側にはバーティブラ１２ａ、１２ｂに向けて傾斜した傾斜面４８ａ、４９ａが形成され、背面側には係合面４８ｂ、４９ｂが形成されている。具体的には、係合突起４８は、側壁部２２側への突出量が背面側に向かうにつれ大きく、係合突起４９は、側壁部２１側への突出量が背面側に向かうにつれ大きくなっている。ストッパ４０の取付壁４１、４２には係合アーム５１、５２（係合凹部）が設けられている。それぞれの係合アーム５１、５２は、図６および図７に示されるように、取付壁４１、４２の図６における上下方向の中央部分を変位中心Ｐとして、それぞれブレード本体２５の幅方向に変位自在の２つのアーム片５３を有し、アーム片５３の先端部はバーティブラ１２ａ、１２ｂに向けてストッパ４０の内側に突出している。 FIG. 10 is an enlarged cross-sectional view along line DD in FIG. 2. Engagement projections 48 and 49 are provided on the inner surfaces of side wall portions 21 and 22 of holder 20, respectively, so as to protrude inward in the width direction. Inclined surfaces 48a, 49a inclined toward the vertibras 12a, 12b are formed on the surface side of the engaging projections 48, 49, and engaging surfaces 48b, 49b are formed on the rear side thereof. Specifically, the amount of protrusion of the engaging protrusion 48 toward the side wall 22 increases toward the back side, and the amount of protrusion of the engaging protrusion 49 toward the side wall 21 increases toward the back side. there is Mounting walls 41 and 42 of stopper 40 are provided with engaging arms 51 and 52 (engaging concave portions). As shown in FIGS. 6 and 7, the respective engaging arms 51 and 52 are displaced in the width direction of the blade body 25 with the central portion of the mounting walls 41 and 42 in FIG. 6 as the displacement center P. It has two freely movable arm pieces 53, and the distal ends of the arm pieces 53 protrude inside the stopper 40 toward the vertebrae 12a and 12b.
　係合アーム５１、５２を構成する２つのアーム片５３の先端には、図７に示されるように、係合駒５４ａ、５４ｂ（凹部）が設けられている。それぞれの係合駒５４ａ、５４ｂの幅方向の位置は、図１０に示されるように、係合突起４８、４９の傾斜面４８ａ、４９ａの位置に対応しており、ストッパ４０の取付壁４１、４２をホルダ２０の収容溝４４、４５に挿入するときには、係合アーム５１、５２の係合駒５４ａ、５４ｂが傾斜面４８ａ、４９ｂに案内されてストッパ４０の内方に変位する。取付壁４１、４２が収容溝４４、４５に挿入されると、係合駒５４ａ、５４ｂは、図１０に示されるように、係合面４８ｂ、４９ｂに係合つまり引っ掛かる状態となる。このように、係合アーム５１、５２を係合突起４８、４９にスナップフィットさせることにより、ストッパ４０がホルダ２０から外れることが防止される。 At the tips of the two arm pieces 53 that constitute the engaging arms 51 and 52, engaging pieces 54a and 54b (concave portions) are provided as shown in FIG. The positions of the engaging pieces 54a and 54b in the width direction correspond to the positions of the inclined surfaces 48a and 49a of the engaging protrusions 48 and 49, respectively, as shown in FIG. 42 is inserted into the receiving grooves 44, 45 of the holder 20, the engaging pieces 54a, 54b of the engaging arms 51, 52 are guided by the inclined surfaces 48a, 49b and are displaced inwardly of the stopper 40. As shown in FIG. When the mounting walls 41, 42 are inserted into the housing grooves 44, 45, the engaging pieces 54a, 54b are engaged or hooked on the engaging surfaces 48b, 49b as shown in FIG. Snap-fitting the engagement arms 51 and 52 to the engagement projections 48 and 49 prevents the stopper 40 from coming off the holder 20 .
　特に、係合アーム５１、５２は、変位中心Ｐが取付壁４１、４２の縦方向のほぼ中央部となっており、係合駒５４ａ、５４ｂまでに長い寸法を有しているので、取付壁４１、４２を収容溝４４、４５に挿入するときの係合アーム５１、５２の先端の変位量を大きくすることができ、小さな押し込み力で容易にストッパ４０をホルダ２０に取り付けることができる。さらに、係合駒５４ａ、５４ｂと係合面４８ｂ、４９ｂとの係合面積を大きくすることができ、ストッパ４０がホルダ２０から外れることを確実に防止できる。 In particular, the engaging arms 51 and 52 have a center of displacement P that is substantially central in the vertical direction of the mounting walls 41 and 42, and have a long dimension up to the engaging pieces 54a and 54b. The amount of displacement of the tips of the engaging arms 51 and 52 when inserting the stoppers 41 and 42 into the receiving grooves 44 and 45 can be increased, and the stopper 40 can be easily attached to the holder 20 with a small pushing force. Furthermore, the engagement areas between the engagement pieces 54a, 54b and the engagement surfaces 48b, 49b can be increased, and the stopper 40 can be reliably prevented from coming off the holder 20. FIG.
　このように、取付壁４１、４２に係合アームを設けたことで、ストッパ４０とバーティブラ１２ａ、１２ｂとの係合方向（背面と表面を繋ぐ方向）と、ストッパ４０とホルダ２０との係合方向（幅方向）とを大きく異ならせることができる。よって、どちらか一方の係合方向に大きな荷重が掛かったとしても、他方の係合が維持されるため、ストッパ４０がホルダ２０またはバーティブラ１２ａ、１２ｂから外れることを防止できる。また、それぞれの係合アーム５１、５２は２つのアーム片５３により形成されているので、係合駒５４ａ、５４ｂの係合面積を大きくしても、挿入時の係合アーム５１、５２を小さな押し込み力で容易に変位させることができる。さらに、取付壁４１、４２に係合アーム５１、５２を設けたことで、装着時や払拭時に取付壁４１、４２全体に掛かる荷重を抑え、ひいては取付壁４１、４２全体の変形を抑えることができる。よって、取付壁４１、４２を介して底壁部４３および凸部４６ａ、４６ｂが変形または変位することを抑えることができる。 By providing the engagement arms on the mounting walls 41 and 42 in this manner, the direction of engagement between the stopper 40 and the vertebrae 12a and 12b (the direction connecting the back surface and the front surface) and the engagement between the stopper 40 and the holder 20 are controlled. direction (width direction). Therefore, even if a large load is applied in one of the engagement directions, the engagement of the other is maintained, so that the stopper 40 can be prevented from coming off from the holder 20 or the vertebrae 12a, 12b. Further, since each engaging arm 51, 52 is formed by two arm pieces 53, even if the engaging area of the engaging piece 54a, 54b is increased, the engaging arm 51, 52 at the time of insertion can be made small. It can be easily displaced by pressing force. Furthermore, by providing the engaging arms 51 and 52 on the mounting walls 41 and 42, it is possible to suppress the load applied to the entire mounting walls 41 and 42 during attachment and wiping, and consequently to suppress the deformation of the entire mounting walls 41 and 42. can. Therefore, deformation or displacement of the bottom wall portion 43 and the convex portions 46a and 46b through the mounting walls 41 and 42 can be suppressed.
　ワイパブレード１０を組み立てるには、まず、ホルダ２０の基壁部２３と固定壁２４との間にバーティブラ１２ａ、１２ｂの長手方向中央部を配置する。ストッパ４０の取付壁４１、４２をホルダ２０の側壁部２１、２２に設けられた収容溝４４，４５に挿入する。これにより、ストッパ４０の凸部４６ａ、４６ｂがバーティブラ１２ａ、１２ｂの位置決め孔４７ａ、４７ｂに挿入され、ホルダ２０はバーティブラ１２ａ、１２ｂに対して固定される。このように、ストッパ４０をホルダ２０に挿入することにより、バーティブラ１２ａ、１２ｂをホルダ２０に固定することができるので、ワイパブレード１０の組立作業性を向上させることができる。 To assemble the wiper blade 10, first, the longitudinal central portions of the vertebrae 12a and 12b are arranged between the base wall portion 23 and the fixed wall 24 of the holder 20. As shown in FIG. The mounting walls 41 , 42 of the stopper 40 are inserted into the receiving grooves 44 , 45 provided in the side walls 21 , 22 of the holder 20 . As a result, the projections 46a and 46b of the stopper 40 are inserted into the positioning holes 47a and 47b of the vertebrae 12a and 12b, and the holder 20 is fixed to the vertebrae 12a and 12b. By inserting the stopper 40 into the holder 20 in this way, the vertebrae 12a and 12b can be fixed to the holder 20, so that the assembling workability of the wiper blade 10 can be improved.
　次に、ホルダ２０の支持ピン２７にクリップ２８を装着し、図１０のように、クリップ２８をストッパ４０の取付壁４１、４２の間に配置する。これにより、係合アーム５１、５２の係合駒５４ａ、５４ｂが係合面４８ｂ、４９ｂから外れることが防止される。 Next, the clip 28 is attached to the support pin 27 of the holder 20, and the clip 28 is arranged between the mounting walls 41 and 42 of the stopper 40 as shown in FIG. This prevents the engagement pieces 54a, 54b of the engagement arms 51, 52 from coming off the engagement surfaces 48b, 49b.
　次に、バーティブラ１２ａ、１２ｂの長手方向両側からそれぞれケース１７を差し込み、ケース１７の長手方向内側端がホルダ２０の長手方向両端部に覆われる位置に配置する。次に、バーティブラ１２ａ、１２ｂの長手方向一端部にキャップ１９を装着する。次に、バーティブラ１２ａ、１２ｂの長手方向他端部から長手方向一端部に向かって、ブレードラバー１１の保持溝１３にバーティブラ１２ａ、１２ｂを差し込む。最後に、バーティブラ１２ａ、１２ｂの長手方向他端部にキャップ１９を装着する。これにより、ワイパブレード１０が組み立てられ、ワイパブレード１０をワイパアーム２６に取り付けるときには、ワイパアーム２６の先端部がクリップ２８に組み付けられる。 Next, the cases 17 are inserted from both sides in the longitudinal direction of the vertibras 12a and 12b, and the inner ends of the cases 17 in the longitudinal direction are placed at positions where they are covered with both ends in the longitudinal direction of the holder 20. Next, a cap 19 is attached to one longitudinal end of each of the vertibras 12a and 12b. Next, the vertebrae 12a, 12b are inserted into the holding grooves 13 of the blade rubber 11 from the other end in the longitudinal direction of the vertebrae 12a, 12b toward the one end in the longitudinal direction. Finally, the cap 19 is attached to the other end in the longitudinal direction of the vertebrae 12a, 12b. Thus, the wiper blade 10 is assembled, and when the wiper blade 10 is attached to the wiper arm 26 , the tip of the wiper arm 26 is attached to the clip 28 .
　なお、両方の取付壁４１、４２に係合アーム５１、５２が設けられているが、少なくとも一方の取付壁に係合アームを設けるようにしても、ストッパ４０をホルダ２０に固定することができる。 Although the engaging arms 51 and 52 are provided on both of the mounting walls 41 and 42, the stopper 40 can be fixed to the holder 20 by providing the engaging arms on at least one of the mounting walls. .
　図１１はホルダ２０とホルダ２０に装着されたストッパ４０とを示す平面図である。取付壁４１，４２はねその長手方向両端部に底壁部４３よりも長手方向外方に突出した突出部５５を有している。つまり、ブレード本体２５の長手方向における取付壁４１、４２の幅寸法は、底壁部４３の幅寸法よりも大きく設定されている。 11 is a plan view showing the holder 20 and the stopper 40 attached to the holder 20. FIG. The mounting walls 41 and 42 have projecting portions 55 projecting outward in the longitudinal direction from the bottom wall portion 43 at both ends in the longitudinal direction. That is, the width dimension of the mounting walls 41 and 42 in the longitudinal direction of the blade body 25 is set larger than the width dimension of the bottom wall portion 43 .
　ホルダ２０の側壁部２１、２２には、収容溝４４、４５の幅方向内側端部かつ長手方向両端部から長手方向内側に突出したガイド部５６が設けられている。突出部５５は、ブレード本体２５の幅方向においてガイド部５６と収容溝４４、４５との間に配置される。これにより、ストッパ４０をホルダ２０に装着するときには、それぞれの取付壁４１、４２はガイド部５６により案内されて収容溝４４、４５に容易に挿入することができる。しかも、それぞれの取付壁４１、４２はガイド部５６により内側に倒れるように変位することが防止されるので、ストッパ４０の外れを確実に防止することができる。 The side wall portions 21 and 22 of the holder 20 are provided with guide portions 56 that protrude inward in the longitudinal direction from the width direction inner end portions and the longitudinal direction end portions of the accommodation grooves 44 and 45 . The projecting portion 55 is arranged between the guide portion 56 and the accommodation grooves 44 and 45 in the width direction of the blade body 25 . Accordingly, when attaching the stopper 40 to the holder 20 , the mounting walls 41 and 42 can be guided by the guide portions 56 and easily inserted into the receiving grooves 44 and 45 . Moreover, since the mounting walls 41 and 42 are prevented from being displaced so as to fall inward by the guide portion 56, it is possible to reliably prevent the stopper 40 from coming off.
　図１２は他の実施の形態であるストッパ４０を示す平面図であり、図１２においては、上述したストッパ４０と共通する部材には同一の符号が付されている。 FIG. 12 is a plan view showing a stopper 40 of another embodiment, and in FIG. 12, members common to the stopper 40 described above are denoted by the same reference numerals.
　図１２に示されるストッパ４０は、ブレード本体２５の長手方向における第１の取付壁４１の幅寸法が第２の取付壁４２の幅寸法よりも寸法Ｌだけ大きく設定されている。それぞれの取付壁４１、４２が挿入される収容溝４４、４５の幅寸法も取付壁４１、４２の幅寸法に対応させて相違しており、取付壁４１の幅寸法は取付壁４２よりも長く設定されている。このように、第１の取付壁４１と第２の取付壁４２とを底壁部４３のブレード本体２５の幅方向における中心線に対して非対称形状とすることにより、ストッパ４０の向きを誤ってホルダ２０に装着することが防止され、ストッパ４０をホルダ２０に取り付けると、凸部４６ａ、４６ｂは確実に位置決め孔４７ａ、４７ｂに挿入され、係合駒５４ａ、５４ｂは係合面４８ｂ、４９ｂに係合される。 In the stopper 40 shown in FIG. 12, the width dimension of the first mounting wall 41 in the longitudinal direction of the blade body 25 is set larger than the width dimension of the second mounting wall 42 by the dimension L. The width dimensions of the receiving grooves 44 and 45 into which the mounting walls 41 and 42 are inserted are also different corresponding to the width dimensions of the mounting walls 41 and 42, and the width dimension of the mounting wall 41 is longer than the mounting wall 42. is set. In this way, by making the first mounting wall 41 and the second mounting wall 42 asymmetrical with respect to the center line of the blade body 25 in the width direction of the bottom wall portion 43, the direction of the stopper 40 is incorrect. When the stopper 40 is attached to the holder 20, the protrusions 46a and 46b are securely inserted into the positioning holes 47a and 47b, and the engagement pieces 54a and 54b are engaged with the engagement surfaces 48b and 49b. engaged.
　２つの取付壁４１、４２の非対称形状としては、図１２に示されように、取付壁４１の幅方向一方側に突出部５５の突出長さを長くするのみではなく、取付壁４１の両方の突出部５５の幅方向の寸法を大きくしてもよい。 As for the asymmetric shape of the two mounting walls 41 and 42, as shown in FIG. The widthwise dimension of the projecting portion 55 may be increased.
　本発明は前記実施の形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。例えば、上記実施の形態においては、ワイパブレード１０を、自動車等の車両のフロントガラスやリヤガラスに付着した雨水や埃を除去するためのワイパ装置に適用した場合について示したが、この発明は自動車に限られず、船舶、航空機、鉄道車車両等に搭載されるワイパ装置にも適用することができる。 The present invention is not limited to the above-described embodiments, and can be modified in various ways without departing from the spirit of the present invention. For example, in the above embodiment, the wiper blade 10 is applied to a wiper device for removing rainwater and dust adhering to the windshield and rear glass of a vehicle such as an automobile. The present invention is not limited to this, and can be applied to wiper devices mounted on ships, aircraft, railway vehicles, and the like.
１０；ワイパブレード、１１；ブレードラバー、１２ａ、１２ｂ；バーティブラ、１４；本体部、１５；リップ部、１７；ケース、１７ａ；ケース基部、１７ｂ；フィン部、２０；ホルダ（アーム連結部材）、２１、２２；側壁部、２３；基壁部、２４；固定壁、２５；ブレード本体、２７；支持ピン、２８；クリップ（アーム連結部材）、３１、３２；側壁部、３４；ピン支持部、４０；ストッパ、４１；第１の取付壁、４２；第２の取付壁、４３；底壁部、４４、４５；収容溝（溝部）、４６ａ、４６ｂ；凸部、４７ａ、４７ｂ；位置決め孔（位置決め孔部）、４８、４９；係合突起、５１、５２；係合アーム（係合凹部）、５３；アーム片、５４ａ、５４ｂ；係合駒（凹部）、５５；突出部、５６；ガイド部
 
 
  10; wiper blade, 11; blade rubber, 12a, 12b; vertebra, 14; body portion, 15; , 22; side wall portion, 23; base wall portion, 24; fixed wall portion, 25; blade body, 27; first mounting wall 42; second mounting wall 43; bottom wall portions 44, 45; accommodation grooves (grooves) 46a, 46b; engagement protrusions 51, 52; engagement arms (engagement recesses) 53; arm pieces 54a, 54b; engagement pieces (recesses) 55;

Claims (7)

  1. 　揺動駆動されるワイパアームに装着され、払拭面上で往復払拭動作するワイパブレードであって、
    　前記ワイパアームに連結されるアーム連結部材と、
    　前記アーム連結部材に長手方向中央部が装着されたバーティブラと、
    　前記アーム連結部材および前記バーティブラに装着されたストッパと、
    　前記バーティブラに装着され、前記払拭面を払拭するブレードラバーと、
    を備え、
    　前記アーム連結部材は、
    　前記バーティブラの幅方向に間隔を隔てて対向して配置され、それぞれ溝部を備えた２つの側壁部と、
    　前記２つの側壁部の間に配置され、かつ前記２つの側壁部と一体に設けられた基壁部と、
    を有し、
    　前記ストッパは、
    　一方の前記側壁部の前記溝部に挿入される第１の取付壁、および他方の前記側壁部の前記溝部に収容される第２の取付壁と、
    　前記第１の取付壁および前記第２の取付壁の前記バーティブラ側の端部に配置され、前記第１の取付壁および前記第２の取付壁と一体に設けられた底壁部と、
    　前記底壁部に設けられ、前記バーティブラに向かって突出した凸部と、
    を有し、
    　前記バーティブラは、前記凸部が挿入された位置決め孔部を有する、ワイパブレード。     A wiper blade attached to an oscillatingly driven wiper arm and reciprocally wiping on a wiping surface,
    an arm connecting member connected to the wiper arm;
    a vertebra having a central portion in the longitudinal direction attached to the arm connecting member;
    a stopper attached to the arm connecting member and the vertebra;
    A blade rubber attached to the vertebra and wiping the wiping surface;
    with
    The arm connecting member is
    two side wall portions, each having a groove, disposed opposite to each other with a gap in the width direction of the vertebra;
    a base wall portion disposed between the two side wall portions and provided integrally with the two side wall portions;
    has
    The stopper
    a first mounting wall inserted into the groove of one of the side walls and a second mounting wall housed in the groove of the other side wall;
    a bottom wall portion disposed at the vertebra-side end portion of the first mounting wall and the second mounting wall and provided integrally with the first mounting wall and the second mounting wall;
    a convex portion provided on the bottom wall portion and protruding toward the vertebra;
    has
    The wiper blade, wherein the vertebra has a positioning hole into which the projection is inserted.
  2. 　前記アーム連結部材は、前記側壁部から対向する前記側壁部に向かって突出した係合突起を備え、
    　前記ストッパは、前記第１の取付壁と前記第２の取付壁の少なくともいずれか一方に設けられ、前記係合突起と係合された係合凹部を備えた、請求項１に記載のワイパブレード。     the arm connecting member includes an engaging projection protruding from the side wall portion toward the opposing side wall portion;
    2. The wiper blade according to claim 1, wherein said stopper is provided on at least one of said first mounting wall and said second mounting wall and includes an engaging recess engaged with said engaging projection. .
  3. 　前記係合凹部は、
    　前記側壁部の中央部に変位中心を有し、前記バーティブラに向けて突出するアーム片と、
    　前記アーム片の先端に設けられ、前記係合突起に係合する凹部と、
    　を備えた、請求項２記載のワイパブレード。     The engaging recess is
    an arm piece having a center of displacement at the center of the side wall and projecting toward the vertebra;
    a concave portion provided at the tip of the arm piece and engaged with the engaging projection;
    3. The wiper blade of claim 2, comprising:
  4. 　前記係合突起は、対向する前記側壁部への突出量が、前記バーティブラに近づくにつれ大きくなっている、請求項２または請求項３に記載のワイパブレード。 The wiper blade according to claim 2 or 3, wherein the engaging protrusions project to the opposing side wall portions by a larger amount as they approach the vertebrae.
  5. 　前記アーム連結部材は、
    　前記２つの側壁部および前記基壁部と、前記２つの側壁部に両端が固定された支持ピンと、を備えたホルダと、
    　前記支持ピンに回動自在に装着され、前記ワイパアームが連結されるクリップと、
    を備え、
    　前記クリップは、前記第１の取付壁と前記第２の取付壁との間に配置されている、請求項１から請求項４のいずれか１項に記載のワイパブレード。     The arm connecting member is
    a holder comprising the two side wall portions and the base wall portion; and a support pin having both ends fixed to the two side wall portions;
    a clip rotatably mounted on the support pin and connected to the wiper arm;
    with
    A wiper blade according to any one of the preceding claims, wherein the clip is arranged between the first mounting wall and the second mounting wall.
  6. 　前記底壁部は、前記第１の取付壁および前記第２の取付壁の前記バーティブラ側の端面に連結されている、請求項１から請求項５のいずれか１項に記載のワイパブレード。 The wiper blade according to any one of claims 1 to 5, wherein the bottom wall portion is connected to the vertebra-side end faces of the first mounting wall and the second mounting wall.
  7. 　前記２つの側壁部は、前記溝部の幅方向内側端部かつ長手方向両端部に設けられ、前記長手方向に沿って対向するように突出された一対のガイド部を備えた、請求項１から請求項６のいずれか１項に記載のワイパブレード。
     
     
          The two side wall portions are provided at both width direction inner end portions and longitudinal direction end portions of the groove portion, and have a pair of guide portions projecting so as to face each other along the longitudinal direction. Item 7. The wiper blade according to any one of Item 6.
PCT/JP2022/009624 2021-04-07 2022-03-07 Wiper blade WO2022215405A1 (en)

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JP2021-065318 2021-04-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106553621A (en) * 2016-09-28 2017-04-05 罗向东 Rain brush

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3124304U (en) * 2006-06-02 2006-08-10 復岡有限公司 Wiper structure
JP2012136150A (en) * 2010-12-27 2012-07-19 Mitsuba Corp Wiper blade
US20120317741A1 (en) * 2009-11-17 2012-12-20 Robert Bosch Gmbh Wiper blade of flat beam construction
JP2013082431A (en) * 2011-09-26 2013-05-09 Asmo Co Ltd Wiper blade
JP2020179756A (en) * 2019-04-25 2020-11-05 株式会社ミツバ Wiper blade

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3124304U (en) * 2006-06-02 2006-08-10 復岡有限公司 Wiper structure
US20120317741A1 (en) * 2009-11-17 2012-12-20 Robert Bosch Gmbh Wiper blade of flat beam construction
JP2012136150A (en) * 2010-12-27 2012-07-19 Mitsuba Corp Wiper blade
JP2013082431A (en) * 2011-09-26 2013-05-09 Asmo Co Ltd Wiper blade
JP2020179756A (en) * 2019-04-25 2020-11-05 株式会社ミツバ Wiper blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106553621A (en) * 2016-09-28 2017-04-05 罗向东 Rain brush

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