JP2008238868A - Wiper blade - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat wiper blade having a blade rubber smoothly reversible when it is turned around on a reciprocating passage without reducing a wiping performance. <P>SOLUTION: This wiper blade 10 comprises the blade rubber 11 for wiping the face to be wiped S of a vehicle C; a spring plate member 12; and a mounting means 16 for connecting the spring plate member to a wiper arm 20. The wiper blade is reciprocatingly moved on the surface to be wiped S by swinging the wiper arm 20. The mounting means 16 comprises a swing mechanism 30 and a connection mechanism 50. The swing mechanism comprises a swing base part 31 attached to the spring plate member 12 while holding a swing shaft 34 and a swing part 32 attached to the swing base part 31 through the swing shaft 34. The connection mechanism 50 comprises a connection base part 17 swingably integrally with the swing part 32 having a connection shaft 51 and a connection body part 18 attached to the connection base part 17 through the connection shaft 51 and to which the wiper arm 20 is detachably connected. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  According to the present invention, a long-shaped spring plate member curved in a bow shape is addressed to a blade rubber, and a wiper provided in a vehicle via an attachment means provided in a central portion in the longitudinal direction of the spring plate member The present invention relates to a wiper blade connected to an arm.

  Conventionally, for example, to wipe a wiping surface such as a windshield of a vehicle, it is widely known to use a wiper having a wiper blade that slides on the wiping surface. As such a wiper, for example, a long-shaped spring plate member curved in a bow is applied to a long-shaped blade rubber for wiping the wiping surface, and the blade rubber is bent, and the spring plate member has its long length. It is pivotally supported by four yokes along the scale direction, each yoke is pivotally supported at both ends of the two secondary levers, and these two secondary levers are pivotally supported at both ends of the primary lever. It is known that a wiper blade (hereinafter referred to as a tournament type wiper blade) configured to be provided with attachment means is connected to a wiper arm provided on a vehicle via the attachment means.

  This tournament-type wiper blade is designed so that each connection point is parallel to the wiping surface and can be rotated around a direction perpendicular to the longitudinal direction, and the pressing force from the wiper arm is changed from the primary lever to the two secondary levers. Then, the blade rubber is abutted against the wiping surface with a uniform pressing force over the entire length by being transmitted to the spring plate member while being dispersed stepwise through the four yokes, and the blade as the wiper arm swings. A rubber wipes the wiping surface well by sliding on the wiping surface at an appropriate inclination angle.

  However, in a tournament-type wiper blade, when snow and ice adhere to the spring plate member to which the blade rubber is attached from the attachment means that becomes the attachment location to the wiper arm, and each connection location does not operate (turn), There is a possibility that the blade rubber cannot be properly brought into contact with the wiping surface and the wiping surface cannot be properly wiped.

  For this reason, the long-shaped blade rubber is directed to the long-shaped spring plate member curved in a bow shape so that the blade rubber is bent, and the vehicle is connected to the vehicle via the attachment means provided at the substantially central portion of the spring-plate member. A wiper blade (hereinafter referred to as a flat wiper blade) that is connected to a wiper arm provided on the door is considered (for example, see Patent Document 1). In the flat wiper blade, the pressing force from the wiper arm is evenly distributed in the longitudinal direction by the spring plate member, so that the blade rubber abuts against the wiping surface with a uniform pressing force over its entire length. As the arm swings, the blade rubber slides on the wiping surface at an appropriate inclination angle, thereby wiping the wiping surface well.

  By the way, since wiper blades are generally reciprocated on the windshield, the blade rubber to which the pressing force is applied to the wiping surface is at an appropriate inclination angle with respect to the wiping surface in the opposite direction between the forward path and the return path. Therefore, when moving from the forward path to the return path or from the return path to the forward path, the inclination direction of the blade rubber is reversed (hereinafter referred to as reversal). In the flat wiper blade described above, the blade rubber is inverted when the round-trip path is turned back, depending largely on the deformation of the blade rubber. This is because there is no place where play is set in order to enable the operation from the attachment means to the wiper arm to the spring plate member to which the blade rubber is attached.

  On the other hand, in the tournament-type wiper blade described above, the distance between the attachment means, which is the attachment position to the wiper arm, and the spring plate member to which the blade rubber is attached is connected by a pivot that can be rotated between a plurality of levels. (In the example described above, between the primary lever and each secondary lever, between each secondary lever and each yoke, between each yoke and the spring plate member) Since play is provided to enable movement, when the round-trip path is turned back by swinging around the longitudinal direction due to the accumulated play of the connection place at each level position and bending deformation of the blade rubber The blade rubber is inverted.

  Therefore, in the flat type wiper blade, the blade rubber is softer than the tournament type wiper blade in order to smoothly invert the blade rubber when turning back and forth. However, the softness (deflection) of the blade rubber greatly affects the inclination angle when sliding on the wiping surface, so smooth reversal of the blade rubber can be achieved without reducing the wiping performance. It is difficult to set the softness to be possible.

In view of this, it is conceivable that a flat wiper blade may be configured to be capable of swinging around the longitudinal direction corresponding to the cumulative amount of play at each connection point. As a similar technology, in a tournament-type wiper blade, the primary lever and the attachment means are pivotably connected via a shaft member extending in the longitudinal direction of the blade rubber, thereby reducing blade rubber deterioration. It has been considered to prevent the smooth inversion due to the cause (see, for example, Patent Document 2).
JP 2003-146190 A Japanese Patent Laid-Open No. 2002-12130

  However, in the tournament-type wiper blade disclosed in Patent Document 2, the blade rubber is smoothed by swinging around the longitudinal direction caused by the play that is originally provided to enable rotation at each connection point. Since the amount of play at each connection point may change due to long-term use, the blade rubber should be kept at an appropriate angle of inclination with respect to the wiping surface. Is difficult, and the problem of adhesion of ice and snow remains. From these things, there exists a possibility that wiping performance may reduce with long-term use or a use condition.

  The present invention has been made in view of the above-described problems, and in a wiper blade of a flat type, a wiper blade capable of smoothly reversing the blade rubber when the reciprocating path is folded without causing a reduction in wiping performance. It is an issue to provide.

  In order to solve the above-mentioned problem, the wiper blade according to claim 1 has a long shape for wiping the wiping surface of the vehicle, and is provided at a lower portion to slide the wiping surface when viewed in a cross section perpendicular to the longitudinal direction. A blade rubber having a wiping portion provided thereon and a head portion provided on the upper portion, and a long shape that fits the head portion of the blade rubber, and is curved in a longitudinal direction in a concave shape when viewed from the blade rubber side. A spring plate member provided along a portion, and an attaching means that holds the spring plate member at a substantially central portion of the spring plate member and can be connected to a wiper arm provided in the vehicle, A wiper blade that is reciprocated on the wiping surface in a direction intersecting the longitudinal direction by swinging, wherein the attachment means includes a swing mechanism fixed to a substantially central portion of the spring plate member, Long for the swing mechanism A connecting mechanism that is swingably provided in a direction and capable of being connected to the wiper arm, the swinging mechanism holding the swinging shaft extending in the longitudinal direction, and the spring plate A swing base portion attached to the member, and a swing portion attached to the swing base portion via the swing shaft so as to be swingable about the swing shaft; A connecting shaft that is parallel to the wiping surface and extends in a direction perpendicular to the longitudinal direction is provided, a connecting base that can swing integrally with the swinging portion, and a pivot that can rotate about the connecting shaft. Therefore, it has the connection main-body part attached to the said connection base part through this connection shaft, and the said wiper arm being connected so that attachment or detachment is possible.

  According to the configuration described above, in the attachment means, the connection main body connected to the wiper arm can be rotated around the connection shaft with respect to the connection base, and the connection base is attached to the spring plate member. Since it can swing integrally with the swinging portion around the swinging shaft provided on the moving base, the blade rubber that reciprocates on the wiping surface by swinging the wiper arm is moved against the wiper arm. The blade rubber can be swung around the longitudinal direction, which is a direction perpendicular to the swinging direction. Inversion can be made smooth.

  Moreover, since it is a structure of a flat type wiper blade, it can prevent that it becomes impossible to wipe a wiping surface appropriately due to adhesion of ice and snow.

  Further, the attachment means is designed to swing around the longitudinal direction, and the swinging around the longitudinal direction and the bending deformation of the blade rubber facilitate smooth reversal of the blade rubber when the reciprocating path is folded back. Because of this configuration, it is easy to set the angle when swinging, and it is easy to cope with long-term use, preventing wiping performance from being reduced due to long-term use or usage conditions. can do.

  A wiper blade according to a second aspect is the wiper blade according to the first aspect, wherein the swing base portion holds the swing shaft in a width direction perpendicular to the longitudinal direction while holding the swing shaft. A pair of opposing wall portions that can hold the spring plate member by sandwiching them and the opposing wall portions that hold the spring plate member are joined by spanning the opposing wall portions in the width direction. And a coupling axis.

  According to the above configuration, the swing base can be easily attached to the spring plate member.

  The wiper blade according to claim 3 is the wiper blade according to claim 2, wherein the swing base portion is a pair of bridges that connect the opposing wall portions forming a pair at both end portions in the longitudinal direction in the width direction. A swing wall portion, and the swing shaft is provided on each of the cross wall portions so as to protrude outward from the swing base portion of the swing wall portion. The swinging portion includes a holding arm portion extending along each of the spanning wall portions and holding each end portion of the swinging shaft at an outer position of the swing base, and both the holding arm portions. The connecting base portion of the connecting mechanism is attached while being connected, and has a connecting arm portion extending along one of the opposing wall portions.

  According to the configuration described above, the height dimension of the attachment means, that is, the dimension dimension in the direction protruding from the spring plate member can be reduced. The height dimension has a great influence on the wind resistance received by the reciprocating wiper blade. Therefore, by setting the height dimension small, the power of the wiper arm can be suppressed and the wiping performance can be improved.

  The wiper blade according to claim 4 is the wiper blade according to claim 3, wherein each of the opposed wall portions of the swing base portion of the coupling mechanism is at least one side as viewed in the longitudinal direction, An engagement protrusion is provided to project outward from the swing wall portion toward the outside of the swing base portion, and the swing mechanism is configured such that the holding arm portion of the swing portion is engaged with each engagement protrusion. By combining, the swinging of the swinging part with respect to the swinging base is limited to a predetermined angle or less.

  According to the configuration described above, the swing angle of the swing portion relative to the swing base portion can be set to a predetermined value with a simple configuration.

  The wiper blade according to claim 5 is the wiper blade according to claim 3, wherein at least one of the spanning wall portions of the swing base portion of the coupling mechanism has an outer side of the swing base portion. And the swing mechanism is configured such that the holding arm portion of the swing portion engages with each of the engagement protrusions, whereby the swing portion of the swing portion with respect to the swing base portion is provided. The swinging is limited to a predetermined angle or less.

  According to the configuration described above, the swing angle of the swing portion relative to the swing base portion can be set to a predetermined value with a simple configuration.

  The wiper blade according to claim 6 is the wiper blade according to any one of claims 3 to 5, wherein the swing shaft is provided individually corresponding to each of the spanning wall portions. And having a first swing shaft and a second swing shaft.

  According to the above-described configuration, the swing shaft has the first swing shaft and the second swing shaft corresponding to each of the spanning wall portions located at both ends of the opposing wall portions to be paired. Therefore, the coupling shaft and the rocking shaft that spans the opposing wall portions in the width direction in the rocking base of the rocking mechanism can be provided at the same height position. Can be set small.

  According to the wiper blade of the present invention, in a flat wiper blade, the blade rubber can be smoothly reversed when the reciprocating path is folded without reducing the wiping performance.

  Embodiments of a wiper blade according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view schematically illustrating a state in which the wiper blade 10 according to the first embodiment is applied to the vehicle C, FIG. 2 is a perspective view schematically illustrating the wiper blade 10, and FIG. FIG. 2 is a schematic perspective view showing the wiper blade 10 expanded on each component.

  As shown in FIG. 1, the wiper blade 10 is provided on the vehicle C in order to wipe the wiping surface S (the windshield in the first embodiment) made of the windshield or rear glass of the vehicle C. As shown in FIGS. 2 and 3, the wiper blade 10 includes a blade rubber 11, a vertibra 12, six holders 13, a blade body 14, and two stoppers 15. Attached to C.

  The wiper blade 10 is fixed to a wiper arm 20 provided in the vehicle C as shown in FIG. Although not shown, the wiper arm 20 is connected to a wiper motor via a wiper link, and is capable of reciprocating along the wiping surface S by driving the wiper motor (see arrows G and B). In the first embodiment, the wiper arm 20 is provided with a rocking shaft for reciprocating movement, which is not shown in the drawing, near the lower side of the glass mounting opening constituting the wiping surface S. When not driven, the stationary posture Ia is substantially along the lower side. The wiper blade 10 is mounted on the wiper arm 20 so that when the wiper arm 20 is swung, the direction intersecting the longitudinal direction of the wiper blade 10 (hereinafter referred to as the longitudinal direction) is the traveling direction. In the first embodiment, the wiper blade 10 is configured such that when the wiper arm 20 is driven, the forward path G swings from the stationary posture Ia along the wiping surface S to the upper and rear sides of the vehicle C, and the end of the forward path G. The wiping surface S is reciprocated along the wiping surface S along the return path B swinging forward and downward of the vehicle C. In the wiper blade 10, the blade rubber 11 is slid so as to reciprocate on the wiping surface S as the wiper arm 20 is driven.

  The blade rubber 11 is formed of an elastic member that can slide on the wiping surface S without damaging the wiping surface S, and has a long shape. FIG. 4 is a cross-sectional view taken along the line II in FIG. As shown in FIG. 4, the blade rubber 11 includes a wiping portion 11a that is in contact with the wiping surface S, a head portion 11b that is located above the wiping portion 11a, and a neck portion 11c that connects the wiping portion 11a and the head portion 11b. And an arm portion 11d protruding from the neck portion 11c. The cross-sectional shape of the wiping portion 11a has a substantially inverted triangular shape, and the cross-sectional shape of the head portion 11b has a rectangular shape. The neck part 11c forms a recessed part between the wiping part 11a and the head part 11b. The arm portion 11d protrudes obliquely upward from the neck portion 11c, and can come into contact with the lower wall surface 14a of the blade body 14 by tilting the neck portion 11c (see FIGS. 10 and 11). The wiping portion 11a is in contact with the wiping surface S at the lower wiping location 11e, and the wiping location 11e is slid on the wiping surface S (see FIGS. 1 and 4). The blade rubber 11 has a so-called neck inversion structure having the above-described shape. In this blade rubber 11, when the transition from the forward path G to the backward path B or from the backward path B to the forward path G is made by utilizing flexural deformation (neck inversion) (that is, the sliding direction to the wiping surface S changes to the opposite side). When the direction of inclination with respect to the wiping surface S is reversed (hereinafter referred to as reversal (see FIG. 10 and FIG. 11)) and is reversed while being pressed against the wiping surface S by receiving a biasing force. When the neck portion 11c is curved and the wiping portion 11a has an appropriate tilt angle with respect to the wiping surface S, the contact relationship of the wiping location 11e with the wiping surface S is made appropriate. At this time, the arm portion 11d abuts on the lower wall surface 14a of the blade body 14, thereby assisting the wiping portion 11a to have an appropriate tilt angle by the curvature of the neck portion 11c (see FIGS. 10 and 11). A vertebra 12 is provided on the head 11 b of the blade rubber 11.

  As shown in FIG. 3, the vertebra 12 is formed in a long plate shape from a resin material or metal material having elasticity, and has a shape curved in a bow shape with respect to the long direction. When the central part 12a of the vertebra 12 that is curved like a bow is pushed down and flattened, the vertebra 12 serves to distribute this force and equalize it when viewed in the longitudinal direction of the vertebra 12. For this reason, in the first embodiment, the vertebra 12 functions as a spring plate member that is curved in the longitudinal direction so as to disperse the force when the center portion is pushed down and flattened. In the wiper blade 10, the vertebra 12 is disposed so that the wiping surface S (see FIGS. 3 and 4) is positioned in a direction to be pushed down during use. A holder 13 is attached to the vertebra 12 for attaching the blade rubber 11. FIG. 5 is a perspective view schematically showing the holder 13.

  As shown in FIG. 5, the holder 13 is processed so that both side portions of the rectangular plate are folded and folded into an L shape in two stages, and has a reverse convex shape when viewed in cross section. A cutout 21 is formed in the lower wall portion 13 a of the holder 13. The notch 21 extends along the extending direction of the vertebra 12 while maintaining a constant interval.

  A first space 22 located above the holder 13 and a second space 23 located below the first space 22 are defined inside the holder 13. The first space 22 has a rectangular parallelepiped shape as a whole, and has a width dimension w and a height dimension h that can secure a horizontal width dimension and a height dimension necessary for inserting the vertical bra 12, and allows the vertical rib 12 to be received. (See FIG. 4). The second space 23 has a rectangular parallelepiped shape that is narrower than the first space 22, and the width and height dimensions necessary for inserting the head 11 b (see FIG. 4) of the blade rubber 11 are secured. ing. The second space 23 is structured such that both ends of the peripheral portion of the notch 21 of the holder 13 sandwich the neck portion 11c of the blade rubber 11 when the head portion 11b is inserted, and the blade rubber 11 does not fall out of the holder 13. It has a structure (see FIG. 4). For this reason, the holder 13 holds the blade rubber 11 on the attached vertebra 12 so that the blade rubber 11 can be attached to the vertebra 12, and the length dimension l of the holder 13 is determined by the blade rubber to the vertebra 12. 11 is set to a size that can provide sufficient attachment strength.

  Since the holder 13 can attach the blade rubber 11 to the vertebra 12 so that the wiping portion 11e of the blade rubber 11 contacts the wiping surface S over the entire length with equal pressure, the length of the vertebra 12 can be reduced. Accordingly, the attachment position and the number are appropriately set. In this embodiment, as shown in FIG. 3, six holders 13 having the same shape and the same size are used, and each holder 13 is spaced at an appropriate interval along the extending direction of the vertebra 12. It is arrange | positioned equally at right and left centering on the center part 12a with which the clip base 17 mentioned later is mounted | worn with it arrange | positioned at the vertebra 12. A blade body 14 is attached to the vertical bra 12.

  As shown in FIG. 3, the blade body 14 has a long shape slightly longer than the vertebra 12, and is formed from an elastic material such as rubber using a mold (not shown). A fitting groove 24 is formed in the blade body 14 (see FIG. 4). As shown in FIG. 4, the fitting groove 24 extends in the longitudinal direction of the blade body 14 while exhibiting an inverted convex shape capable of sandwiching both side edges of the vertebra 12, and has a groove opening 24 a. The lower wall surface 14a of the blade body 14 is opened. The fitting groove 24 has a horizontal width and a height necessary for inserting the vertical bra 12 when viewed in a cross section orthogonal to the extending direction of the blade body 14, so that the vertical bra 12 can be fitted. ing. The fitting groove 24 opens the upper surface of the blade body 14 through an attachment opening 24 b provided in the center of the blade body 14. The fitting groove 24 of the blade body 14 accommodates the vertebra 12 in a state where the head 11b of the blade rubber 11 is held via the holder 13 with the wiping portion 11e of the blade rubber 11 exposed from the groove opening 24a. Can do. A stopper 15 (see FIG. 3) is attached to each end portion 14b of the blade body 14 in the accommodated state.

  As shown in FIG. 3, each stopper 15 has a cylindrical receiving portion 15a and a lid portion 15b that closes one end thereof. The stoppers 15 are mounted so that the end portions 14b of the blade body 14 are received by the receiving portions 15a, and the lid portions 15b are the end portions 14b of the vertebra 12 and the open ends (14c) of the fitting groove portions 24 of the blade body 14. Shield. Thereby, each stopper 15 can prevent the blade rubber 11 from falling off from each end face 14c of the blade body 14 to the outside, and can improve the design of the appearance of each end face 14c of the blade body 14 (FIG. 2). reference). In a state where the vertebra 12 is stored in the blade body 14, the central portion 12a of the vertebra 12 is exposed from the attachment opening 24b, and the attachment means 16 is attached to the central portion 12a.

  In the wiper blade 10 according to the present invention, the attachment means 16 prompts the blade rubber 11 to be reversed so that the blade rubber 11 is smoothly reversed when moving from the forward route G to the backward route B or from the backward route B to the forward route G. It is configured to operate. This will be described below. FIG. 6 is a perspective view schematically showing the attaching means 16 in the wiper blade 10, FIG. 7 is a schematic perspective view showing the attaching means 16 developed in each component, and FIG. It is sectional drawing obtained along the III-III line of FIG.

  The attachment means 16 includes a swing mechanism 30 and a coupling mechanism 50 as shown in FIGS. The swing mechanism 30 is an attachment point to the vertebra 12 and can swing the blade rubber 11 along the plane perpendicular to the swing direction with respect to the wiper arm 20 (swing in the longitudinal direction). The connecting mechanism 50 is configured so that the blade rubber 11 can swing with respect to the wiper arm 20 along a plane that includes the longitudinal direction of the blade rubber 11 and that is perpendicular to the wiping surface S. Are connected.

  As shown in FIG. 7, the swing mechanism 30 includes a swing base portion 31, a swing arm portion 32, two bushes 33, a swing shaft 34, and a coupling shaft 35.

  The swing base 31 is formed by bending a single plate member, and can hold the vertebra 12 from both sides thereof. The swing base 31 includes a pair of opposing wall portions 36 that are opposed to each other at both side edges of the vertebra 12 with the vertebra 12 interposed therebetween, and both the opposing wall portions 36 are disposed in the width direction of the vertebra 12 (perpendicular to the longitudinal direction and the wiping surface). And a pair of spanning wall portions 37 connected in a direction parallel to S). In the present embodiment, the swing base 31 is configured such that both opposing wall portions 36 are connected to each other through the one extending wall portion 37, and the other extending wall portion 37 is connected to each facing wall portion 36. And is formed as a single plate member. In the pair of opposing wall portions 36, a coupling bearing portion 38, a clamping portion 39, and a fixed wall portion 40 are formed in pairs. In addition, a rivet receiving cutout 41 for receiving a rivet 51 of a coupling mechanism 50 described later is formed in one opposing wall portion 36.

  Each clamping part 39 is located at both ends across the fixed wall part 40 when viewed in the longitudinal direction, and can support each side edge of the vertebra 12 from the side and below (see FIGS. 7 and 8). The vertebra 12 can be sandwiched by exhibiting an L shape and cooperating with each other. Both the fixed wall portions 40 are formed by partially bending the opposing wall portion 36 inward in the width direction, and are wall surfaces 40a (which can be brought into surface contact with the vertebra 12 when being sandwiched by the both sandwiching portions 39 from above. 8), the rocking base 31 and the vertebra 12 are fixed together in cooperation with both clamping portions 39.

  Further, in the first embodiment, the both sandwiching portions 39 are extended toward the outside of the swing base portion 31 along the longitudinal direction, that is, to the outside of the other divided wall portion 37. The engaging wall surface 42 is formed below the spanning wall portion 37. The engagement wall surface 42 is for limiting the swinging of the swing arm portion 32 (described later) about the swing shaft 34. From this, in Example 1, the part protruded in the elongate direction in both the clamping parts 39 functions as an engaging protrusion.

  A connecting shaft 35 is used to attach the swing base 31 to the vertical bra 12. The coupling shaft 35 has a cylindrical shape. When the coupling shaft 35 is inserted into the coupling bearing portion 38, the protruding end portion is expanded and engaged with the opposing wall portion 36 provided with the coupling bearing portion 38 (hereinafter referred to as the coupling shaft 35). , Called eyelet processing). The coupling shaft 35 is inserted into each coupling bearing portion 38 so as to bridge the opposing wall portions 36 in a state where the vertebra 12 is sandwiched by the both clamping portions 39, and is subjected to eyelet processing, whereby a pair of opposing wall portions are provided. The swing base 31 can be attached to the vertical bra 12 with the pair 36 facing each other along both sides of the vertical rib 12 with a pair of spanning wall portions 37 interposed therebetween. A swing shaft 34 is provided on a pair of spanning wall portions 37 of the swing base 31.

  The spanning wall portions 37 are provided with swing bearing portions 43 positioned on the same straight line along the longitudinal direction, and the bush 33 is inserted into each swing bearing portion 43. Both bushes 33 support the swing shaft 34 in the swing bearing portion 43, and the swing arm portion 32 is pivotally supported by the swing base portion 31 via the supported swing shaft 34. .

  The swing arm portion 32 is formed of a so-called U-shaped plate member, and connects the holding arm portion 44 along both the extending wall portions 37 of the swing base portion 31 and the both holding arm portions 44. While having a connecting arm portion 45 along one opposing wall portion 36 (the side on which the rivet receiving cutout 41 is provided) of the swing base 31, the swing base 31 is spaced from the swing base 31 by a slight distance. It has a band shape that surrounds from the side. The minute interval is an interval for enabling the swing arm portion 32 to swing relative to the swing base portion 31 around the swing shaft 34, as will be described later.

  Each holding arm portion 44 is provided with a holding arm bearing portion 46 corresponding to the swing bearing portion 43 of the spanning wall portion 37 of the swing base portion 31 facing each other. The swing arm portion 32 holds the other holding arm portion 44 through the holding arm bearing portion 46 of one holding arm portion 44 and the bush 33 inserted in the swing bearing portion 43 of both the spanning wall portions 37. The swing shaft 34 inserted through the arm bearing portion 46 is fixed by eyelet processing, so that it can swing around the swing shaft 34 on the side of the swing base 31. A rivet insertion hole 47 is provided in the connecting arm portion 45 of the swing arm portion 32. The rivet 51 is fixed to the rivet insertion hole 47 by inserting a rivet 51 of the coupling mechanism 50 described later from the outside (opposite side of the swing base 31) and performing eyelet processing.

  The coupling mechanism 50 includes a rivet 51 as a coupling shaft, a clip base 17 as a coupling base, and a clip 18 as a coupling main body.

  The clip 18 is made of a synthetic resin, and can fix the front end portion 20a (see FIG. 1) of the wiper arm 20 provided in the vehicle C. The clip 18 is provided with a holding notch 18a in which the rivet 51 can be rotatably held and into which the rivet 51 can be fitted. A clip base 17 is provided to hold the clip 18.

  The clip base 17 has a pair of opposing wall portions 17a that are opposed to each other at both side edges of the clip 18 with the clip 18 interposed therebetween, and a bottom wall portion 17b that connects the opposing wall portions 17a. An operation notch 17e for facilitating the operation of the clip 18 is formed in the bottom wall portion 17b. The pair of opposing wall portions 17a are provided with a rivet insertion hole 17c and a rivet insertion hole 17d facing each other. The rivet insertion hole 17c is a long hole having a shape suitable for a flange 51b of the rivet 51 to be described later, and the rivet insertion hole 17d is a round hole having a shape suitable for a main body cylinder part 51a of the rivet 51 to be described later. It is said that. The rivet 51 is inserted into the rivet insertion hole 17c and the rivet insertion hole 17d.

  The rivet 51 includes a main body cylinder portion 51a having a cylindrical shape, and a flange portion 51b having a larger diameter than the main body cylinder portion 51a provided at an intermediate position (a desired position excluding both end portions as viewed in the extending direction). . The main body cylinder portion 51 a can be fitted into a rivet insertion hole 47 provided in the connection arm portion 45 of the swing arm portion 32 and a rivet insertion hole 17 d provided in the other opposing wall portion 17 a of the clip base 17. The flange 51b has a diameter that can be fitted into a rivet insertion hole 17c provided in one opposing wall portion 17a. For this reason, when eyelet processing is applied to both ends of the rivet 51 in a state of being inserted into the rivet insertion hole 47 of the swing arm portion 32, the rivet insertion hole 17c and the rivet insertion hole 17d of the clip base 17, The swing arm portion 32 and the clip base 17 can be fixed in a state in which a general rotation is prevented. When the clip 18 is fitted into the rivet 51 from the holding cutout 18 a, the clip 18 is attached to the clip base 17 so as to be swingable around the rivet 51.

  This attachment means 16 is attached as follows. In the state where the blade body 14 is inserted into the vertebra 12 holding the blade rubber 11 via the six holders 13, the central portion 12a (see FIG. 3) of the vertebra 12 exposed from the mounting opening 24b of the blade body 14 is interposed. As described above, in the swing base portion 31 of the swing mechanism 30, the interval between the opposing wall portions 36 connected by one of the spanning wall portions 37 is increased, and the center of the vertebra 12 is determined by the both sandwiching portions 39 of each opposing wall portion 36. Both opposing wall portions 36 are made to face each other so as to be fixed by both the fixing wall portions 40 and both the holding portions 39 while holding the portion 12a (see FIGS. 7 and 8). In this state, the coupling shaft 35 is inserted into the coupling bearing portions 38 of the opposing wall portions 36 (see arrow A1), whereby the rocking base portion 31 of the rocking mechanism 30 is attached to the vertebra 12 (FIGS. 6 and 6). 8). A bush 33 is inserted into each swing bearing 43 of the swing base 31 (see arrow A2).

  Each holding arm portion 44 is placed along each spanning wall portion 37 on the outside of the swing base portion 31 into which the bush 33 is inserted, and one opposing wall portion 36 (the side on which the rivet receiving notch 41 is formed). The swing arm portion 32 is arranged so that the connecting arm portion 45 follows the connection arm portion 45 (see arrow A3). In this state, the holding arm bearing portion 46 of the one holding arm portion 44 passes through the holding arm bearing portion 46 of one holding arm portion 44 and the bush 33 inserted into the swinging bearing portion 43 of both spanning wall portions 37. The swinging shaft 34 is inserted so as to pass through 46 (see arrow A4), and both ends of the swinging shaft 34 are subjected to eyelet processing. As a result, the swing arm 32 is attached to the swing base 31 so as to be swingable around the swing shaft 34 on the side of the swing base 31. The relative swing between the swing arm portion 32 and the swing base portion 31 is limited in the swing range by the engagement wall surface 42 formed by the both sandwiching portions 39 of the swing base portion 31. It will be described later.

  One end of the rivet 51 is inserted into the rivet insertion hole 47 of the swing arm portion 32 (see arrow A5) to perform eyelet processing, and is inserted into the rivet insertion hole 17c and the rivet insertion hole 17d of the clip base 17 ( Then, the flange 51b is fitted into the rivet insertion hole 17c, and the other end (main body cylinder portion 51a) is fitted into the rivet insertion hole 17d to perform eyelet processing. Thereby, the swing arm part 32 and the clip base 17 are fixed in a state where relative rotation is prevented. The clip 18 is mounted on the clip base 17 by fitting the retaining cut 18a of the clip 18 into the rivet 51 (see arrow A7). As a result, the clip 18 can swing around the rivet 51 with respect to the clip base 17. The attachment means 16 is attached by such a procedure.

  Here, in the wiper blade 10, two holders in which both end portions of the swing base 31 of the swing mechanism 30 holding the vertebra 12 are close to the mounting opening 24 b of the blade body 14 when viewed in the longitudinal direction. 13, relative displacement between the swing base 31 (attachment means 16) and the vertical bra 12 along the longitudinal direction is prevented. In this state, a shielding lid 48 (see FIG. 3) may be mounted so as to shield the opened upper end surface of the rocking base 31 of the rocking mechanism 30. In the wiper blade 10 configured as described above, the tip end portion 20a of the wiper arm 20 is attached to a rotatable clip 18 and attached to the vehicle (see FIG. 1).

  In the wiper blade 10 according to the present invention, the blade rubber 11 is smoothly reversed when moving from the forward path G to the backward path B or from the backward path B to the forward path G. The operation of the blade rubber 11 when the wiper blade 10 is reversed will be described.

  In the wiper blade 10, as described above, the wiping portion 11e of the wiping portion 11a of the blade rubber 11 presses the wiping surface S by the pressing force from the wiper arm 20 (see FIG. 9). In this state, when the wiper arm 20 is driven, the wiper blade 10 is reciprocated on the wiping surface S to wipe the wiping surface S (see FIG. 1). During this reciprocation, the head 11b of the blade rubber 11 is held by the swinging machine part 31 of the swinging mechanism 30 of the mounting means 16 via the vertebra 12. Therefore, the head 11b is mounted on the wiper arm 20. Along with the driving, it is reciprocated along the wiping surface S. However, since the wiping portion 11e of the wiping portion 11a of the blade rubber 11 is in contact with the wiping surface S and slides on the wiping surface S, the head 11b sees in the traveling direction due to friction with the wiping surface S. Is also moved back and forth along the wiping surface S. In other words, in the blade rubber 11 and the vertebra 12, the swinging force as indicated by the arrow R shown in FIG. 10 acts on the forward path G, and the swinging force indicated by the arrow L shown in FIG. Power will act. Here, since the vertebra 12 holding the head 11b of the blade rubber 11 is attached to the wiper arm 20 via the attachment means 16, the blade rubber 11 is placed on the wiping surface S in the forward path G and the return path B. On the other hand, a predetermined inclination angle is set.

  Specifically, in the forward path G, as shown in FIG. 10, a counterclockwise swinging force R acts on the blade rubber 11, so that the attachment means 16 is fixedly attached to the vertical bra 12. The counterclockwise swinging force R also acts on the swing base 31 of the swing mechanism 30. Then, the swing base 31 can swing relatively around the swing shaft 34 with respect to the swing arm 32 fixed to the clip base 17 provided with the clip 18 to which the wiper arm 20 is mounted. Therefore, it is inclined counterclockwise. This inclination is limited by engaging a lower end surface 44 a of one holding arm portion 44 of the swing arm portion 32 with an engagement wall surface 42 a formed by one clamping portion 39 of the swing base portion 31.

  In the case of the return path B, as shown in FIG. 11, a clockwise swinging force L acts on the blade rubber 11, so that the swinging mechanism fixedly attached to the vertical bra 12 by the mounting means 16. The swinging force L in the clockwise direction also acts on the swinging base portion 31 of 30, and the swinging base portion 31 is inclined clockwise. This inclination is limited by engaging a lower end surface 44 a of one holding arm portion 44 of the swing arm portion 32 with an engagement wall surface 42 b formed by the other holding portion 39 of the swing base portion 31.

  Thus, in the wiper blade 10, the swing base 31 is on the opposite side with respect to the swing arm portion 32, that is, the wiper arm 20, when the forward path G is moving and when the return path B is moved. It will be inclined. Therefore, in the attachment means 16, the swing base portion 31 swings with respect to the swing arm portion 32, so that the entire blade rubber 11 (the axis viewed in the height direction of the blade rubber 11) is relative to the wiping surface S. And the direction of the inclination is reversed when the swing base 31 shifts from the forward path G to the backward path B or from the backward path B to the forward path G. Therefore, the direction of elastic deformation (deflection deformation) is reversed. The cutting is given to the blade rubber 11, that is, the reversal of the blade rubber 11 is promoted.

  Therefore, in the wiper blade 10 of the present invention, the blade rubber 11 can be smoothly reversed when moving from the forward path G to the backward path B or from the backward path B to the forward path G. For this reason, the wiper blade 10 can wipe the wiping surface S appropriately. This is because, in the wiper blade, if the blade rubber is not smoothly reversed when the round-trip path is turned back, abnormal noise due to chattering occurs or wiping unevenness occurs on the wiping surface S.

  Further, since the wiper blade 10 is configured as a so-called flat wiper blade, it is possible to prevent the wiping surface S from being appropriately wiped due to adhesion of ice and snow. . This is because, for example, the vertebra is rotatably held at both ends of the four yokes, each of the yokes is rotatably held at both ends of the two secondary levers, and both the secondary levers are primary. A so-called tournament-type that is configured to have a plurality of hierarchical structures with a wiper arm attached to a clip base and a clip that are pivotally held at both ends of the lever and provided at a substantially central portion of the primary lever. In the wiper blade, when icy and snow adheres to the rotating locations connecting the layers and the rotation becomes impossible, the wiping surface S may not be properly wiped.

  Further, in the wiper blade 10, the mounting base 16 swings in the longitudinal direction, so that the swing base 31 swings through the swinging shaft 34 that extends the swing arm 32. It is configured to be pivotally supported, and by this swinging in the longitudinal direction and the bending deformation of the blade rubber 11, the blade rubber 11 is smoothly reversed when the reciprocating path is turned back. Therefore, it is easy to set the angle at the time of swinging, and it is possible to suppress a reduction in wiping performance even when used for a long period of time. The angle setting at the time of swinging is easy because the swing base 31 swings with respect to the swing arm 32 in the attachment means 16, so that the entire blade rubber 11 (the blade rubber 11 of the blade rubber 11) with respect to the wiping surface S can be obtained. This is because the inclination angle of the axis viewed in the height direction can be set. In the first embodiment, the inclination angle is set in such a manner that the lower end surface 44a of one holding arm portion 44 of the swing arm portion 32 has both holding portions of the swing base portion 31 at an appropriate angle position with the swing shaft 34 as a reference. What is necessary is just to set so that it may be latched by the engagement wall surface 42 formed by 39. FIG. On the other hand, in the tournament-type wiper blade, the play provided at each connection location by the pivot support between a plurality of levels is used, but the play at each connection location is Since it is not provided for swinging in the longitudinal direction, there is a risk that the amount of play at each connection location may change due to repeated swinging.

  In the wiper blade 10, the swing base 31 attached to the vertical bra 12 by the mounting means 16 has a configuration in which the vertical plate 12 is sandwiched and fixed between the opposing wall portions 36 by bending a single plate member. The moving base 31 can be easily attached to the vertical bra 12.

  In the wiper blade 10, since the swing mechanism 30 and the coupling mechanism 50 are arranged in parallel in the direction along the wiping surface S in the attachment means 16, the height dimension of the attachment means 16 (that is, the wiper blade 10) ( That is, the size dimension in the direction orthogonal to the wiping surface S can be reduced. For this reason, the resistance of the wind at the time of reciprocating on the wiping surface S can be suppressed, the power of the wiper arm 20 can be suppressed, and the wiping performance can be improved.

  In the wiper blade 10, the lower end surface 44 a of the one holding arm portion 44 of the swing arm portion 32 is engaged with the engagement wall surface 42 formed by the both sandwiching portions 39 of the swing base portion 31, thereby Since the configuration is such that the inclination angle of the entire blade rubber 11 (axis seen in the height direction of the blade rubber 11) is set, for example, when the inclination angle of the blade rubber 11 needs to be changed in accordance with the change of the vehicle type to be applied. Even so, it is only necessary to change the swing base, and it can be easily adapted to different vehicle types at low cost.

  In the wiper blade 10, in the swing mechanism 30, a swing base portion 31 formed of a single plate member and a swing arm portion 32 formed of a single plate member separately from the swing base portion 31 include a wiper blade. It will be contacted every 10 reciprocating movements, but since it has a shape that can be formed of a resin material or a metal material, it has an appropriate strength against contact while ensuring ease of manufacture. It can be.

  Therefore, in the wiper blade 10 according to the first embodiment configured as a flat wiper blade, the blade rubber 11 can be smoothly reversed when the reciprocating path is turned back without reducing the wiping performance.

  Next, the wiper blade 100 (see FIGS. 12 and 13) of the second embodiment will be described. In the wiper blade 100, in the attachment means 160, a portion corresponding to the swing arm portion 32 of the swing mechanism 30 of the first embodiment and a portion corresponding to the clip base 17 of the coupling mechanism 50 are formed integrally. The moving arm clip base 600) and the dividing position of the swing base 310 of the swing mechanism 300 are changed. Since the basic configuration of the wiper blade 100 is the same as that of the first embodiment, the same reference numerals as those in the first embodiment are given to the same functional portions, and the detailed description thereof is omitted.

  As shown in FIGS. 12 and 13, the attachment means 160 of the wiper blade 100 is different from the swing base portion 31 of the first embodiment in that the swing base portion 310 of the swing mechanism 300 is different from the swing wall portion 370 of the first embodiment. Square concavities and convexities that match each other are fitted and connected between the opposing wall portions 360 that are integrally formed and are not continuous.

  In addition, the mounting means 160 is provided with a swing arm clip base 600 in which the swing arm portion 32 and the clip base 17 of the first embodiment are integrated. The swing arm clip base 600 has a connection wall between a portion corresponding to the connection arm portion 45 of the swing arm portion 32 of the first embodiment and a portion corresponding to one opposing wall portion 17a of the clip base 17 of the first embodiment. The portion 610 is also configured to be shared. For this reason, in the attachment means 160, the clip 18 is attached to the rivet 510 inserted into the clip base portion 620 of the swing arm clip base 600, and the clip base portion 620 is attached to the swing arm clip base 600. By being attached to the swing base 310 via both holding arm portions 440 of the swing mechanism 300, the swing mechanism 300 can swing around the swing shaft 34.

  In addition, in the attachment means 160, the engaging wall surface 420 that restricts the inclination angle of the entire blade rubber 11 (the axis viewed in the height direction of the blade rubber 11) with respect to the wiping surface S is formed on both opposing wall portions as in the first embodiment. Instead of being configured by extending the holding portion 39 provided in 36, the engaging projection 370a extending from the lower end of the other spanning wall portion 370 is formed.

  The wiper blade 100 has a flat wiper blade configuration similar to the wiper blade 10 of the first embodiment, and smoothly reverses the blade rubber 11 when the round-trip path is folded without reducing the wiping performance. be able to.

  Further, in the wiper blade 100, the number of components in the attachment means 160 can be reduced as compared with the wiper blade 10 (attachment means 16) of the first embodiment.

  Further, since the wiper blade 100 uses the swing arm clip base 600 having an integral structure, the connecting arm portion of the swing arm portion 32 is the same as the wiper blade 10 (mounting means 16) of the first embodiment. The process of joining 45 and one opposing wall part 17a of the clip base 17 becomes unnecessary, and the assembling work can be made simple and easy.

  In the wiper blade 100, since the swing arm clip base 600 having an integral structure is used, the rivet 510 having a simple structure can be used and the assembling work of the attachment means 16 can be facilitated. be able to. This is because in the wiper blade 10 (attachment means 16) of the first embodiment, the connection arm portion 45 of the swing arm portion 32 and the one opposing wall portion 17a of the clip base 17 are coupled to each other. In order to prevent the arm portion 45 and the one opposing wall portion 17a from rotating relative to each other, a rivet 51b having a long-hole rivet insertion hole 17c and a shape fitting to the rivet 51b is provided. This is due to the need to provide and properly fit them.

  Next, a wiper blade 1000 (see FIGS. 14 and 15) of Example 3 will be described. The wiper blade 1000 is an example in which the swinging shaft 3400 is divided into two parts in the attachment means 160 of the second embodiment. Since the basic configuration of the wiper blade 1000 is the same as that of the second embodiment, the same reference numerals as those of the second embodiment are given to the same functional parts, and detailed description thereof is omitted.

  As shown in FIGS. 14 and 15, the attachment means 1600 of the wiper blade 1000 is configured such that the swing shaft 3400 of the swing mechanism 3000 is a single cylindrical member of the first embodiment and the second embodiment. Unlike the swinging shaft 34 that bridges 37, the first swinging shaft 3400a and the second swinging shaft 3400b are respectively provided to correspond to the one spanning wall portion 3700 and the other spanning wall portion 3700. These two cylindrical members are used. The swing base 3100 of the swing mechanism 3000 of the attachment means 1600 is provided with a first support hole 7000 and a second support hole 7100 for supporting one end of the first swing shaft 3400a and the second swing shaft 3400b. It has been.

  In addition, in the attaching means 1600, the rocking base 3100 of the rocking mechanism 3000 includes a first rocking base member 7200 and a second rocking base member 7300. The first rocking base member 7200 is formed of a single plate member at a location from one spanning wall portion 3700 through one opposing wall portion 3600 to the other spanning wall portion 3700. The second swing base member 7300 is a single plate member that forms the other opposing wall portion 3600, and can be combined with the first swing base member 7200.

  The attachment means 1600 is assembled in the following procedure. As shown in FIG. 15, the bush 33 is inserted into the swing bearing portion 4300 of both spanning wall portions 3700 of the first swing base member 7200 (see arrow A10). In parallel with this, the rivet 510 is inserted into the rivet insertion hole 4700 of the swing arm clip base 6000 to perform eyelet processing, and the rivet 510 is attached to the swing arm clip base 6000 (see arrow A11).

  Thereafter, on the outside of the swing base 3100, the swing arm clip base is provided so that each holding arm portion 4400 is along each bridge wall portion 3700 and the connection wall portion 6100 is along one opposing wall portion 3600. 6000 is arranged (see arrow A12). In this state, the first support hole 7000 passes through the holding arm bearing portion 4600 of the one holding arm portion 4400 of the swing arm clip base 6000 through the swinging bearing portion 4300 of the one spanning wall portion 3700 and the first arm. The swing shaft 3400a is inserted (see arrow A13) to perform eyelet processing, and the other holding of the swing arm clip base 6000 is performed from the second support hole 7100 through the swing bearing portion 4300 of the other spanning wall portion 3700. The second swing shaft 3400b is inserted (see arrow A14) so as to pass through the holding arm bearing portion 4600 of the arm portion 4400, and eyelet processing is performed. Thus, the swing arm clip base 6000 is attached to the swing base 3100 so as to be swingable around the swing shaft 3400 (the first swing shaft 3400a and the second swing shaft 3400b) on the side of the swing base 3100. Will be.

  Thereafter, the second swinging base member 7300 is assembled to the first swinging base member 7200 (see arrow A15), the coupling shaft 3500 is inserted (see arrow A16), and eyelet processing is performed, so that the swinging base portion is obtained. Attach 3100 to Vertibra 12. The clip 18 is attached to the clip base portion 6200 of the swing arm clip base 6000 (see arrow A17).

  The wiper blade 1000 has a flat wiper blade configuration, similar to the wiper blade 10 of the first embodiment and the wiper blade 100 of the second embodiment, and can be used when turning the round-trip path without reducing the wiping performance. The blade rubber 11 can be smoothly reversed.

  Further, in the wiper blade 1000, the coupling shaft 3500 and the rocking shaft 3400 are provided at the same height position that spans the opposing wall portions 36 in the width direction within the rocking base 3100 of the rocking mechanism 3000 of the mounting means 1600. Therefore, the height dimension of the swing base 3100 (the attachment means 1600 and the wiper blade 1000) can be set small.

  Further, in the wiper blade 1000, since the swing base 3100 is configured to assemble the first swing base member 7200 and the second swing base member 7300, the divided swing shaft 3400, that is, the first swing shaft. The insertion of 3400a and the second swing shaft 3400b can be facilitated.

  In each of the above-described embodiments, the swing base portion in the swing mechanism of the attachment means is formed of an integral plate member (Embodiment 1 and Embodiment 2) or formed of two plate members. Regardless of whether or not (Embodiment 3), the configuration is such that the vertebra is sandwiched by widening the interval between the opposing wall portions to be paired. However, the swing base only needs to be attached to the vertebra. It is not limited to examples.

  Further, in each of the above-described embodiments, the swing base portion of the swing mechanism of the attachment means is configured to sandwich the vertebra with the opposing wall portions that make a pair. However, it is sufficient that the swing base portion can be attached to the vertebra. The invention is not limited to the embodiments described above.

  Further, in each of the above-described embodiments, the lower end surface of one holding arm portion of the swing arm portion is engaged with the engagement wall surface formed by the both sandwiching portions of the swing base portion, thereby swinging with respect to the swing base portion. Although the inclination angle of the arm portion, that is, the inclination of the entire blade rubber 11 (the axis viewed in the height direction of the blade rubber 11) with respect to the wiping surface S is limited, the inclination of the entire blade rubber 11 with respect to the wiping surface S is limited. It is only necessary to be able to do this, and the present invention is not limited to the above-described embodiments. For example, one opposing wall portion of the swing base and the connecting arm portion of the swing arm portion (the connection wall portion of the swing arm clip base in the second and third embodiments) that are opposed at adjacent positions are desired. By adopting the configuration in which the blade rubber 11 is engaged in the swinging posture, the inclination of the entire blade rubber 11 with respect to the wiping surface S can be limited.

  In each of the above-described embodiments, the vertebra 12 as a spring plate member is exemplified. However, the spring plate member may be curved in the longitudinal direction so as to disperse the force when the center portion is pushed down and flattened. For example, it may be embedded along the longitudinal direction in the head of the blade rubber, and is not limited to the above-described embodiments.

  In each of the above-described embodiments, a scene (winter) in which ice and snow may be attached has been described. However, in the case of a flat wiper blade, the specification corresponding to the summer (for example, change of blade rubber material) However, the present invention is not limited to the above-described embodiments.

  In each of the above-described embodiments, the wiping surface S is configured by the windshield of the vehicle C, but may be a rear glass, and is not limited to each of the above-described embodiments.

1 is a schematic perspective view showing a vehicle to which a wiper blade according to the present invention is applied. 1 is a schematic perspective view showing a wiper blade according to Embodiment 1. FIG. FIG. 3 is an exploded perspective view showing the wiper blade according to the first embodiment in an exploded manner. It is sectional drawing obtained along the II line | wire shown in FIG. It is a typical perspective view which shows a holder. It is a typical perspective view which shows an attachment means. FIG. 5 is an exploded perspective view showing the attachment means in an exploded manner for each component in order to explain the configuration of the attachment means and the attachment method. It is drawing for demonstrating a mode that the attachment means was mounted | worn to a vertebra by pinching | interposing a vertebra, and is sectional drawing obtained along the III-III line | wire shown in FIG. It is drawing for demonstrating a mode that the attachment means was mounted | worn to the vertebra by pinching | interposing a vertebra, and is sectional drawing obtained along the II-II line | wire shown in FIG. It is drawing for demonstrating the blade rubber operation | movement in an outward path, and is sectional drawing obtained along the II-II line | wire shown in FIG. It is drawing for demonstrating the blade rubber operation | movement in a return path, and is sectional drawing obtained along the II-II line | wire shown in FIG. It is a typical perspective view which shows the attachment means of Example 2. It is an expansion | deployment perspective view which decomposes | disassembles and shows the attachment means of Example 2 for every component. It is a typical perspective view which shows the attachment means of Example 3. It is an expansion | deployment perspective view which decomposes | disassembles and shows the attachment means of Example 3 for every component.

Explanation of symbols

10, 100, 1000 Wiper blade 11 Blade rubber 11a Wiping portion 11b Head 12 Vertibra 16, 160, 1600 (as a spring plate member) Mounting means 17 Clip base 18 (as a connection base) Clip (as a connection main body) 20 Wiper arm 30, 300, 3000 Oscillating mechanism 31, 310, 3100 Oscillating base 32 (as the oscillating unit) Oscillating arm 34, 3400 Oscillating shaft 3400a First oscillating shaft 3400b Second oscillating shaft 35 3500 Coupling shaft 36, 360, 3600 Opposing wall portion 37, 370, 3700 Crossing wall portion 370a Engaging projection 39 (as an engaging projection) Nipping portion 50, 500, 5000 Connecting mechanism 51, 510, 5100 (Connecting shaft Rivet C Vehicle S Wiping surface

Claims (6)

A blade rubber having a long shape for wiping the wiping surface of the vehicle and having a wiping portion provided at the lower portion and a head portion provided at the upper portion so as to slide the wiping surface as seen in a cross section orthogonal to the longitudinal direction; A spring plate member that has a long shape that fits the head portion of the blade rubber and that is curved in the long direction in a concave shape when viewed from the blade rubber side, and is provided along the head portion, and an abbreviation of the spring plate member Mounting means for holding the spring plate member at the center and connecting with a wiper arm provided on the vehicle, and by swinging the wiper arm on the wiping surface in a direction crossing the longitudinal direction. A reciprocating wiper blade,
The attachment means is provided with a swing mechanism fixed to a substantially central portion of the spring plate member and swingable about the longitudinal direction with respect to the swing mechanism, and can be connected to the wiper arm. Connecting mechanism,
The swing mechanism includes a swing base attached to the spring plate member while holding a swing shaft extending in the longitudinal direction, and the swing shaft to be swingable about the swing shaft. A swinging part attached to the swinging base via,
The connection mechanism includes a connection base that is provided with a connection shaft that is parallel to the wiping surface and that extends in a direction perpendicular to the longitudinal direction, and is capable of swinging integrally with the swing portion, and around the connection shaft. A wiper blade comprising: a connecting main body portion which is attached to the connecting base portion via the connecting shaft so as to be rotatable and to which the wiper arm is detachably connected.   The swing base portion includes a pair of opposing wall portions that are capable of holding the spring plate member by sandwiching the spring plate member in a width direction orthogonal to the longitudinal direction while holding the swing shaft. 2. The wiper blade according to claim 1, further comprising a coupling shaft that couples the opposing wall portions in a state where the spring plate member is held by bridging the opposing wall portions in the width direction. The swing base portion has a pair of spanning wall portions that connect the opposing wall portions forming a pair in the width direction at both ends in the longitudinal direction,
The swing shaft is provided on each of the spanning wall portions so as to protrude outward from the respective swing wall portions of the swing base portion,
The swinging part of the swinging mechanism extends along each of the spanning wall parts at an outer position of the swinging base part, and holds arm parts for holding each end of the swinging shaft, The wiper according to claim 2, further comprising: a connecting arm portion that is attached to the connecting base portion of the connecting mechanism and extends along one of the opposing wall portions while connecting both holding arm portions. blade. Each of the opposing wall portions of the swing base portion of the coupling mechanism has an engagement projecting beyond the spanning wall portion toward the outside of the swing base portion on at least one side as viewed in the longitudinal direction. A protrusion is provided,
The swing mechanism limits the swing of the swing portion relative to the swing base to a predetermined angle or less by engaging the holding arm portion of the swing portion with the engagement protrusions. The wiper blade according to claim 3. An engagement protrusion that protrudes outward of the swing base is provided on each of the spanning wall portions of at least one of the swing base of the coupling mechanism,
The swing mechanism limits the swing of the swing portion relative to the swing base to a predetermined angle or less by engaging the holding arm portion of the swing portion with the engagement protrusions. The wiper blade according to claim 3.   The said rocking | fluctuation axis | shaft has the 1st rocking | fluctuation axis | shaft and the 2nd rocking | fluctuation axis | shaft provided corresponding to each said spanning wall part individually, The Claim 3 thru | or 5 characterized by the above-mentioned. The wiper blade according to item 1.

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