JP2007253855A - Wiper blade - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiper blade capable of abutting a blade rubber on a wiping surface with a uniform pressure by a simple configuration having a smaller number of components. <P>SOLUTION: The wiper blade 10 comprises a long blade rubber 11 for wiping a wiping surface S, and a vertebra 12 which is curved in the longitudinal direction of the blade rubber 11 so as to unify the pressure of the blade rubber 11 on the wiping surface S and provided with a clip base 13. The blade rubber 11 has a wiping part 11a, a neck part 11c and a head part 11b. The vertebra 12 consists of a resin-made long cylinder having a blade rubber insertion space 15 extending in the longitudinal direction of the blade rubber 11. In this resin-made long cylinder, a pair of open end wall parts 20 for holding the neck part 11c of the blade rubber 11 are formed on the wiping surface S side while the head part 11b of the blade rubber 11 is inserted in the blade rubber insertion space 15, and the vertebra 12 is capable of holding the blade rubber 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an improvement in a wiper blade that is attached to a wiper arm and used to wipe a wiping surface.

  Conventionally, for example, in order to wipe a wiping surface such as a window surface of a windshield of a vehicle, it is widely known to use a wiper blade having a long blade rubber that slides on the wiping surface. As such a wiper blade, it has two secondary levers provided on the blade rubber and a primary lever that bridges both the secondary levers, and is connected to the wiper arm via a clip mechanism provided at the center of the primary lever. A tournament type that can be connected is known (for example, see Patent Document 1). This wiper blade is provided with a vertebra which is a long metal plate and is curved in the longitudinal direction along the blade rubber.

In this wiper blade, when a biasing force toward the wiping surface is applied from the wiper arm, this biasing force acts on the vertebra through the primary lever and both secondary levers, and the vertebra is viewed in the longitudinal direction of the blade rubber. Since the blade rubber is applied to the blade rubber as a uniformly distributed pressing force, the blade rubber can abut against the wiping surface with a uniform pressing force and appropriately wipe the wiping surface.
JP 2004-345418 A

  However, in the wiper blade described above, the blade rubber is connected to the wiper arm via the primary lever and both the secondary levers, and the urging force from the wiper arm is uniformly distributed as seen in the longitudinal direction by the vertebra, as a blade rubber. Therefore, the configuration is complicated and the number of parts increases.

  The present invention has been made in view of the above problems, and provides a wiper blade capable of bringing a blade rubber into contact with a wiping surface with a uniform pressing force with a simple configuration having a small number of components. And

  In order to solve the above-described problem, the wiper blade according to claim 1 is a longitudinal blade rubber for wiping the wiping surface, and a longitudinal direction of the blade rubber to equalize the pressing force of the blade rubber against the wiping surface. And a vertebra provided with a clip base for attachment to a wiper arm, and the blade rubber includes a wiping portion for wiping the wiping surface, and a continuous wiping portion via a neck portion and the wiping portion. A head that is wider than the neck, and the vertebra is composed of a resin-made long cylinder having a blade rubber insertion space extending in the longitudinal direction of the blade rubber. Is a pair of open end wall portions that sandwich the neck portion of the blade rubber while the head portion of the blade rubber is inserted into the blade rubber insertion space. Is formed on the wiping surface, characterized in that the vertebra is capable of holding the blade rubber.

  The wiper blade according to claim 2 is the wiper blade according to claim 1, wherein the clip base has a pair of opposing wall portions opposed to each other in the width direction of the vertebra. The both side walls of the vertebra placed in the width direction of the vertebra are capable of being sandwiched from the outside, and the opposing wall portions include a base engaging claw and a base engaging portion that can be engaged with each other. Any one of these may be provided, and the both side wall portions may be provided with the other of the base engaging claws and the base engaging portions.

  The wiper blade according to claim 3 is the wiper blade according to claim 1 or 2, wherein the vertebra is provided with a stopper that covers each end of the vertebra located in the longitudinal direction. Each stopper has a shape that can be fitted to each end, and each stopper is provided with either a stopper engaging claw or a stopper engaging portion that can be engaged with each other. The other end of the stopper engaging claw and the stopper engaging portion is provided at the end.

  The wiper blade according to claim 4 is the wiper blade according to any one of claims 1 to 3, wherein each of the stoppers is the blade rubber in a state where the blade rubber holds the blade rubber. An insertion part that can be inserted into the blade rubber insertion space so as to fill at least a portion located on the side of the head in an enclosed space formed around the head in the insertion space; and And a lid that shields the open end of the blade rubber insertion space when fitted into the blade rubber insertion space.

  The wiper blade according to claim 5 is the wiper blade according to any one of claims 1 to 4, wherein the blade rubber insertion space is in a state where the blade rubber holds the blade rubber. It is characterized in that the auxiliary space along the extending direction of the blade rubber is formed with a certain height and a certain width above the blade rubber.

  According to the present invention, the vertebra made of a resin material can hold the blade rubber, can equalize the pressing force against the wiping surface of the held blade rubber, and further, the blade via the clip base. Since the rubber can be connected to the wiper arm, it has both the function of holding the blade rubber and the function of bringing the blade rubber into contact with the wiping surface with a uniform pressing force. Therefore, the blade rubber can be brought into contact with the wiping surface with a uniform pressing force with a simple configuration having a small number of parts.

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

  FIG. 1 is a schematic perspective view showing a wiper blade 10 according to the present embodiment, and FIG. 2 is a schematic perspective view showing the wiper blade 10 developed in each component. The wiper blade 10 is provided in the vehicle for wiping the wiping surface S (see FIG. 4) made of a vehicle windshield or the like (not shown). The wiper blade 10 is generally composed of a blade rubber 11, a vertebra 12, a clip base 13, and two stoppers 14. Here, when viewed from the wiper blade 10, the wiping surface S side is a downward direction, both edges in the longitudinal direction are ends or end faces, the direction perpendicular to the vertical direction and the longitudinal direction is the width direction, and both edges in the width direction Is the side or side.

  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. 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 a flange portion 11d protruding in the width direction from the neck portion 11c. The cross-sectional shape of the wiping portion 11a has an inverted triangular shape, and the cross-sectional shape of the head portion 11b has a rectangular shape. The neck portion 11c forms a recess between the wiping portion 11a and the head portion 11b, and the flange portion 11d extends in parallel with the lower surface of the head portion 11b from the neck portion 11c, and between the lower surface of the head portion 11b. A pair of insertion recesses 11e are formed. The wiping portion 11a is in contact with the wiping surface S at the lower wiping location 11f, and the wiping location 11f slides on the wiping surface S. The blade rubber 11 has a so-called lip reversal structure having the above-described shape. In this blade rubber 11, when it is reversed in a state of being pressed against the wiping surface S (see FIG. 4) under the urging force, that is, when the sliding direction to the wiping surface S is changed to the opposite side, The tip of the wiping portion 11a is curved so as to follow the wiping surface S and is set to an appropriate tilt angle with respect to the wiping surface S, whereby the contact relationship of the wiping location 11e with the wiping surface S is made appropriate. The On the other hand, although not shown, in the blade rubber having the neck reversal structure, the portion (neck portion) corresponding to the neck portion 11c of the blade rubber 11 is curved and tilted so as to follow the wiping surface S. In order to adjust the degree of curvature of the neck portion, that is, to make the contact relationship of the wiping portion with the wiping surface S appropriate, the blade rubber of the neck reversing structure contacts the flange portion 11d of the blade rubber 11 described above. Possible arms are provided.

  Vertibra 12 is a cylindrical body having a long rectangular parallelepiped shape that extends in a constant cross-sectional shape (see FIG. 5), and is made of a resin material. As shown in FIG. 2, the vertebra 12 has a shape curved in a bow shape with respect to the longitudinal direction. When the central portion 12a of the vertebra 12 that is curved like a bow is pushed down and flattened (see FIG. 1), the vertebra 12 serves to distribute this force and to equalize it when viewed in the longitudinal direction of the vertebra 12. . The vertebra 12 is disposed when the wiper blade 10 is used so that the wiping surface S (see FIG. 4) is positioned in the direction to be pushed down. The vertical bra 12 includes a blade rubber insertion space 15, a slit hole 16, a base engaging portion 17, and a stopper engaging portion 18.

  The blade rubber insertion space 15 is formed by the inner wall surface of the vertebra 12, has a rectangular shape (see FIG. 5) and extends in the longitudinal direction of the vertebra 12, and the head 11 b of the blade rubber 11 is formed. The width and height necessary for receiving are secured (see FIG. 4). The blade rubber insertion space 15 opens (15a) both end faces 12c of the vertebra 12. A slit hole 16 is located below the blade rubber insertion space 15.

  The slit hole 16 opens the lower wall portion 19 of the vertebra 12 along the extending direction of the vertebra 12 while maintaining a constant interval, and opens the blade rubber insertion space 15 below. The lower wall portion 19 opened by the slit hole 16, that is, the peripheral portion of the slit hole 16 constitutes a pair of open end wall portions 20 that can be fitted into the pair of fitting recesses 11 e of the blade rubber 11. Both open end wall portions 20 are sized so as to be fitted into the both insertion recesses 11e (see FIGS. 3 and 4).

  As shown in FIG. 5, the vertebra 12 has a structure in which the slit hole 16 sandwiches the neck 11c of the blade rubber 11 when the head 11b of the blade rubber 11 is inserted into the blade rubber insertion space 15. In this structure, the pair of open end wall portions 20 are fitted into the pair of insertion recesses 11e of the blade rubber 11 so as to sandwich the neck portion 11c of the blade rubber 11, and the blade rubber 11 is separated from the blade rubber insertion space 15. It has a structure that does not fall down. In the present embodiment, the blade rubber insertion space 15 is an enclosure space 21 (see FIGS. 3 and 5) surrounding the head 11 b of the blade rubber 11 in the blade rubber insertion space 15 in a state where the vertebra 12 holds the blade rubber 11. )) Is formed.

  As shown in FIG. 2, the base engaging portion 17 is provided in the central portion 12 a in the longitudinal direction of the vertebra 12, and can be engaged with a base engaging claw 24 of the clip base 13 described later. . In this embodiment, the base engaging portion 17 is a through-hole penetrating both side wall portions 22 and 22 of the vertebra 12 facing each other in a direction orthogonal to the longitudinal direction of the vertebra 12, It is formed to do.

  The stopper engaging portions 18 are provided at both end portions 12b of the vertebra 12 and can be engaged with stopper engaging claws 28 of the stopper 14 described later. In this embodiment, the stopper engaging portion 18 is a through-hole penetrating the upper wall portion 23 of the vertebra 12 and is formed at both end portions 12b.

  The clip base 13 is attached to the central portion 12 a of the vertebra 12, that is, at the set position of the base engaging portion 17. The clip base 13 is rotatable to a rectangular bottom wall portion 13a, vertical wall portions 13b and 13b which are erected so as to face the bottom wall portion 13a and make a pair, and both vertical wall portions 13b and 13b. The clip 13c is generally composed of an attached clip 13c.

  The bottom wall portion 13a has a width dimension substantially equal to the upper wall portion 23 of the vertebra 12 and the interval between the pair of vertical wall portions 13b and 13b can sandwich the side wall portions 22 and 22 of the vertebra 12 from the outside. It is a dimension. Both the vertical wall portions 13b and 13b sandwich the vertebra 12 below the bottom wall portion 13a and support the clip 13c above the bottom wall portion 13a. The clip 13c is rotatably supported by a shaft portion (not shown) spanned between the vertical wall portions 13b and 13b, and the end of a wiper arm provided in a vehicle (not shown) is fixed. It is possible.

  The pair of vertical wall portions 13b, 13b of the clip base 13 are provided with base engaging claws 24. When the clip base 13 is attached to the vertebra 12, the base engagement claw 24 engages with the base engagement portion 17 of the vertebra 12 and fixes the clip base 13 to the vertebra 12. Although not shown, the base engaging claws 24 are formed in pairs at the vertical wall portions 13b and 13b corresponding to the base engaging portions 17 which are paired at the side wall portions 22 and 22 of the vertebra 12. Has been.

  Stoppers 14 are attached to both end portions 12 b of the vertebra 12. As shown in FIG. 3, the stopper 14 includes a fitting portion 25 and a lid portion 26. The fitting portion 25 has an overall U-shape, that is, an upper wall portion 25a that can abut on the upper wall portion 23 of the vertebra 12 and a side wall portion 25b that can abut on the both side walls 22 and 22 of the vertebra 12. Have As shown in FIGS. 4 and 5, the fitting portion 25 has a side wall portion 25 b between the both side surfaces of the head portion 11 b of the blade rubber 11 and both side wall portions 22, 22 of the vertebra 12 in the surrounding space 21 described above. The upper wall portion 25a is sized to fill the upper half of the portion located between the upper surface of the head portion 11b of the blade rubber 11 and the upper wall portion 23 of the vertebra 21. A space formed between the upper wall portion 25 a of the fitting portion 25 and the upper surface of the head portion 11 b of the blade rubber 11 becomes an auxiliary space 27.

  A stopper engaging claw 28 is provided on the upper wall portion 25 a of the fitting portion 25. The stopper engaging claws 28 can be engaged with stopper engaging portions 18 formed at both ends 12 b of the vertebra 12 when the insertion portion 25 is inserted into the blade rubber insertion space 15.

  The lid portion 26 is continuous with the insertion portion 25, and is dimensioned to cover the end surface 12 c of the vertebra 12 and the flange portion 11 e of the blade rubber 11 in a state where the vertebra 12 holds the blade rubber 11. .

  For this reason, when each of the stoppers 14 is fitted into each end 12 b of the vertebra 12 in a state where the blade rubber 11 is held in the blade rubber insertion space 15, the stopper engaging claws 28 are formed in the vertebra 12. The lid portion 26 shields the open end 15 a of the blade rubber insertion space 15 with each end portion 12 b of the vertebra 12. Thereby, each stopper 14 can prevent the blade rubber 11 from falling off from each end 12b of the vertebra 12 to the outside, and can improve the design of the appearance of each end face 12c of the vertebra 12.

  The wiper blade 10 is assembled, for example, through the steps described below.

  The resin material is extruded to form a long cylindrical body (vertebra 12) having a blade rubber insertion space 15 and a slit hole 16 in a certain shape when viewed in a cross section orthogonal to the longitudinal direction.

  The cylindrical body is cut with a length dimension suitable for the blade rubber 11 having a length corresponding to the size dimension of the wiping surface S to which the cylindrical body is applied, thereby forming the vertical bra 12 having a desired length dimension. Both side wall portions 22, 22 of the central portion 12a of the vertebra 12 are drilled to form the base engaging portion 17, and the upper wall portion 23 of both end portions 12b is drilled to form the stopper engaging portion 18.

  The blade rubber 11 is inserted into the blade rubber insertion space 15 and the slit hole 16 from the end surface 12 c of the vertical bar 12 to cause the vertical rubber 12 to hold the blade rubber 11.

  Next, the fitting portions 25 of the stopper 14 are fitted into the end portions 12 b of the vertebra 12, the stopper engaging claws 28 are engaged with the stopper engaging portions 18 of the vertebra 12, and the stopper 14 is attached to the vertebra 12. It attaches to both ends 12b and shields both end faces 12c.

  Next, the both side walls 22 and 22 of the central portion 12a of the vertebra 12 are sandwiched from both outside by the vertical wall portions 13b and 13b of the clip base 13, and the bottom wall portion 13a of the clip base 13 is fixed to the central portion 12a of the vertebra 12. The base engaging claw 24 of the clip base 13 is engaged with the base engaging portion 17 of the vertebra 12 and the clip base 13 is attached to the central portion 12 a of the vertebra 12. .

  Thereby, the assembly of the wiper blade 10 of this embodiment is completed. The wiper blade 10 can be attached to a vehicle (not shown) by connecting a wiper arm (not shown) to the clip 13c of the clip base 13. The wiper blade 10 is given a biasing force toward the wiping surface S from a wiper arm (not shown) connected to the clip 13 c of the clip base 13. This urging force is evenly transmitted to the blade rubber 11 in the longitudinal direction by the elastic action of the vertebra 12. For this reason, the wiping portion 11f of the blade rubber 11 is brought into contact with the wiping surface S with an equal pressing force. The wiper blade 10 can wipe the wiping surface S by the wiping portion 11f sliding on the wiping surface S as the wiper arm swings.

  With the wiper blade 10, the following effects can be obtained.

  (1) The vertebra 12 has both the function of holding the blade rubber 11 and the function of bringing the wiping portion 11f of the blade rubber 11 into contact with the wiping surface S with an equal pressing force when viewed in the longitudinal direction. The wiping surface S can be appropriately wiped with a simple configuration with a reduced number of parts compared to a conventional wiper blade.

  (2) Since the open ends 15a of the both end portions 12b of the vertebra 12 are shielded by the stoppers 14 fixed to the both end portions 12b of the vertebra 12, the blade rubber 11 falls out from the end portions 12b of the vertebra 12 to the outside. Can be prevented.

  (3) When the stopper 14 is attached to both end portions 12b of the vertebra 12 holding the blade rubber 11, the insertion portion 25 of the stopper 14 is the blade of the enclosed space 21 formed in the blade rubber insertion space 15. Since the portions located between the both side surfaces of the head portion 11b of the rubber 11 and both side wall portions 22 and 22 of the vertebra 12 are filled, the blade rubber 11 is placed at an appropriate position in the blade rubber insertion space 15 when viewed in the width direction. The head 11b can be fixed.

  (4) Each stopper 14 has its fitting portion 25 fitted in the surrounding space 21 formed in the blade rubber insertion space 15, and its stopper engaging claw 28 is engaged with the stopper engaging portion 18 of the vertebra 12. By doing so, since it can attach to the both ends 12b of the vertebra 12, the assembly work is easy.

  (5) The blade rubber 11 has a configuration in which the open end wall portion 20 sandwiches the neck portion 11c of the blade rubber 11 by fitting the open end wall portion 20 of the vertebra 12 into the insertion recess 11e. The head 11b of the blade rubber 11 can be fixed at an appropriate position in the blade rubber insertion space 15 when viewed in the direction.

  (6) Each stopper 14 has its fitting portion 25 fitted in the enclosed space 21 formed in the blade rubber insertion space 15, and its stopper engaging claw 28 is engaged with the stopper engaging portion 18 of the vertical bra 12. By doing so, since it can attach to the both ends 12b of the vertebra 12, the assembly work is easy.

  (7) Each clip base 13 has its vertical wall portions 13b and 13b sandwiching the side wall portions 22 and 22 of the vertebra 12 while the bottom wall portion 13a is directed to the upper wall portion 23 of the vertebra 12 Since the engaging claw 24 is engaged with the base engaging portion 17 of the vertebra 12, it can be attached to the central portion 12 a of the vertebra 12, so that the assembling work is easy.

  (8) An auxiliary space 27 is formed between the upper wall portion 25a of each stopper 14 and the upper surface of the neck portion 11c of the blade rubber 11, and the auxiliary space 27 is made of an auxiliary metal plate or a resin material. An auxiliary vertebra 29 (see FIG. 4) can be inserted. The auxiliary vertebra 29 can assist the operation of bringing the wiping portion 11f of the blade rubber 11 by the vertebra 12 into contact with the wiping surface S with an equal pressing force.

  (9) The vertebra 12 is formed by cutting a long cylindrical body having a certain shape as viewed in a cross section perpendicular to the longitudinal direction and having a blade rubber insertion space 15 and a slit hole 16 to a desired length. Therefore, it is possible to cope with wiper blades having a plurality of lengths, and the manufacturing cost of the wiper blade can be reduced.

  (10) Since the vertebra 12 made of a resin material holds the blade rubber 11 made of an elastic member, a conventional wiper that prevents the attachment of ice and snow by covering the portion holding the blade rubber with a rubber cover or the like Unlike a blade, it can be used in cold districts or the like without adding a new member. This is because, since the vertebra 12 is made of a resin material, even if ice and snow adhere to the vertebra 12, the attached ice and snow easily peels from the vertebra 12.

  (11) Since a metal material is not used for the constituent member, it has higher corrosion resistance than a conventional wiper blade using a metal material. Here, when a metal material is used in a conventional wiper blade covered with a rubber cover or the like, it is necessary to apply a sealing material to prevent water from entering after attaching the rubber cover. Is impossible to replace. On the other hand, in the wiper blade 10 of the present invention, it is not necessary to apply a sealing material after assembly, and only the blade rubber 11 can be replaced.

  (12) Since the blade rubber 11 is configured to hold the blade rubber 11, for example, even if the blade rubber 11 is worn, only the blade rubber 11 can be replaced and the blade rubber 11 can be easily replaced.

  (13) Since the wiping portion 11f of the blade rubber 11 can be brought into contact with the wiping surface S with an equal pressing force, even if a blade rubber having water repellency is adopted, the water repellent coating is made uniform. Can do. For this reason, it can suppress that a passenger | crew feels a glare feeling at the time of raining at night, for example, and the residue on the wiping surface S arises.

  (14) Since the blade rubber 11 has a lip reversal structure, for example, even when icy and snow on the wiping surface S is wiped off, the tilt angle of the blade rubber 11 with respect to the wiping surface S, that is, the wiping surface S The contact relationship of the wiping place 11e with respect to can be made appropriate, and stable wiping performance can be ensured. On the other hand, in the blade rubber (not shown) having the above-described neck reversal structure, ice and snow are held between the arm portion and the flange portion (around the neck portion), and the neck portion is appropriately curved. There is a possibility that it cannot be performed, and there is a possibility that the wiping performance may be reduced.

  Therefore, in the wiper blade 10 of the present embodiment, the blade rubber can be brought into contact with the wiping surface with a uniform pressing force with a simple configuration having a small number of parts.

  The wiper blade according to the present invention has been described above with reference to the drawings. However, the wiper blade according to the present invention is not limited to the above-described one, and the function that the vertebra holds the blade rubber and the wiping of the blade rubber. What is necessary is just a structure which has the function to contact | abut to a wiping surface with equal pressing force seeing a location in a longitudinal direction.

  In the above-described embodiment, the auxiliary space 27 is formed between the upper wall portion 25a of each stopper 14 and the upper surface of the neck portion 11c of the blade rubber 11. However, the fitting portion 25 of each stopper 14 serves as the blade of the vertebra 12 The configuration may be such that the surrounding space 21 formed inside the rubber insertion space 15 is completely filled and the auxiliary space 27 is not formed, and is not limited to the above-described embodiment.

  In the above-described embodiment, the stopper 14 is provided at each end 12b of the vertebra 12. However, this can be eliminated. However, it is desirable to provide the stopper 14 because the blade rubber 11 can be prevented from falling off from each end portion 12b of the vertebra 12.

  The clip base 13 is provided in the central portion 12a of the vertebra 12. However, the clip base 13 is not limited to the above-described embodiment as long as it is provided in the vertebra 12.

  In the embodiment described above, the base engaging portion 17 is provided on the vertebra 12 and the base engaging claw 24 is provided on the clip base 13. However, the base engaging claw 24 is provided on the vertebra 12 and the clip base 13 is provided. The base engaging claw may be provided on the base plate, and is not limited to the above-described embodiment.

  In the above-described embodiment, the stopper engaging portion 18 is provided on the vertical bra 12 and the stopper engaging claw 28 is provided on the stopper 14. However, the base engaging claw 28 is provided on the vertical bra 12 and the stopper 14 has a base on the stopper 14. The engagement claw may be provided and is not limited to the above-described embodiment.

It is a perspective view showing a wiper blade concerning an embodiment of the invention. It is an expansion perspective view showing the wiper blade concerning an embodiment of the invention. It is a perspective view which expands and shows the edge part of a wiper blade, and has shown a mode that a stopper is mounted | worn to the vertical bra which hold | maintained the blade rubber. It is sectional drawing obtained along the II line shown in FIG. It is sectional drawing obtained along the II-II line | wire shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Wiper blade 11 Blade rubber 11a Wiping part 11b Head part 11c Neck part 12 Vertibra 13 Clip base 13b Vertical wall part 14 (as an opposing wall part) Stopper 15 Blade rubber insertion space 17 Base engaging part 18 Stopper engaging part 19 Lower wall portion (of the vertebra) 20 A pair of open end wall portions 21 Enclosed space 22 Side wall portion (of the vertebra) 23 Upper wall portion of (the vertebra) 24 Base engaging claw 25 (of the stopper) Insertion portion 26 (of the stopper) Lid 27 Auxiliary space 28 Stopper engaging claw S Wiping surface

Claims (5)

A long blade rubber that wipes the wiping surface, and a clip base that is curved in the longitudinal direction of the blade rubber and is attached to the wiper arm to equalize the pressing force of the blade rubber against the wiping surface. With a vertebra,
The blade rubber has a wiping portion for wiping the wiping surface, and a head that is continuous with the wiping portion via a neck and wider than the neck,
The vertebra is composed of a resin long cylindrical body having a blade rubber insertion space extending in the longitudinal direction of the blade rubber. The resin long cylindrical body includes the head of the blade rubber in the blade rubber insertion space. A wiper blade characterized in that a pair of open end wall portions that sandwich the neck portion of the blade rubber in a state where the portion is inserted are formed on the wiping surface side, and the vertebra can hold the blade rubber.   The clip base has a pair of opposing wall portions opposed to each other in the width direction of the vertebra, and the both opposing wall portions can sandwich both side walls of the vertebra located in the width direction of the vertebra from the outside. The opposing wall portions are provided with either one of a base engaging claw and a base engaging portion engageable with each other, and the both side wall portions have the base engaging claw and The wiper blade according to claim 1, wherein the other of the base engaging portions is provided.   The vertebra is provided with a stopper that covers each end portion of the vertebra located in the longitudinal direction of the vertebra, and each stopper has a shape that can be fitted to each end portion. One of the engaging claw for stopper and the engaging portion for stopper that can be combined is provided, and the other of the engaging claw for stopper and the engaging portion for stopper is provided at each end. The wiper blade according to claim 1 or 2, wherein   Each of the stoppers fills at least a portion of the surrounding space formed around the head in the blade rubber insertion space in a state where the vertebra holds the blade rubber, which is positioned at the side of the head. The blade rubber insertion space has a fitting portion that can be inserted into the blade rubber insertion space, and a lid portion that shields the open end of the blade rubber insertion space when the insertion portion is inserted into the blade rubber insertion space. The wiper blade according to any one of claims 1 to 3. In the blade rubber insertion space, an auxiliary space along the extending direction of the blade rubber is formed at a certain height and width above the blade rubber, with the vertebra holding the blade rubber. The wiper blade according to any one of claims 1 to 4, wherein the wiper blade has a size as described above.

Images