JP2004026090A - Blade assembly for wiper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exchangeable blade assembly for a wiper. <P>SOLUTION: The blade assembly for a wiper is constituted by a blade member 3 in which a wiping part 3b capable of wiping a wiping surface and a retaining part 3a retainable to a lever wiping-drivably and pivotally supported to a car body by a driving means are integrally formed and which is inhibited to pass in the state that it is not flexured against a stopper means 12 of the lever 10 and can be passed by flexuring it; and a vertebra 6 in which a slit retainably formed in the state that the retaining part 3a of the blade member 3 is engaged and an opening capable of engaging/disengaging the retaining part 3a of the blade member 3 in the slit and which can press the wiping part 3b of the blade member 3 to the wiping surface side. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a wiper blade assembly capable of wiping rainwater and dust attached to windows such as a front window panel, a rear window panel, and a side window panel of vehicles such as automobiles, aircraft, and ships.
[0002]
[Prior art]
As a conventional wiper blade assembly, for example, a blade member having a wiping portion capable of wiping a wiping surface such as a front wind panel is engaged with a groove formed on both sides of a holding portion of the blade member. And two vertical bars which hold the blade member and apply a pressing force to the wiping surface side of the blade member. The blade assembly is held by a claw portion of a yoke, the yoke is supported by a lever by a pin, and a stay rotatably supported by a vehicle body is supported by an engagement portion of the lever in a freely rotatable manner. The stay can be driven by driving means such as a motor and a driving shaft. The vertebra is formed in a gentle bow to press the blade member toward the wiping surface.
[0003]
[Problems to be solved by the invention]
However, in such a wiper, when it is necessary to replace the blade member, for example, when the wiping portion of the blade member is deteriorated due to friction with the wiping surface, the blade assembly cannot be disengaged from the lever. In addition, it is necessary to replace the entire wiper, that is, the assembly of the lever and yoke, and the blade assembly, which may force the user to make a high purchase, and there is a need for improvement.
[0004]
Therefore, an object of the present invention is to provide a structure that allows replacement of only a blade assembly of a wiper.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that a wiping portion capable of wiping a wiping surface and a holding portion capable of being held by a lever rotatably supported by a driving means on a vehicle body by a driving means are provided. A blade member which is formed integrally and which is prevented from passing in a state where it is not bent with respect to the stopper means of the lever, and which can be passed by bending, and a holding portion of the blade member held in an engaged state A slit that is formed so as to be capable of engaging and disengaging the holding portion of the blade member in the slit, and a vertical blade that can press the wiping portion of the blade member toward the wiping surface. It becomes.
[0006]
According to the first aspect of the present invention, it is possible to bend the end of the blade assembly in a state where the blade assembly is assembled to the lever, so that the blade assembly can pass without the stopper means of the lever. Thus, the blade assembly is detachable from the lever, and only the blade assembly can be replaced. This means that the cost burden on the consumer can be reduced by purchasing an inexpensive blade assembly. In addition, the longer the lever can be used, the more effective use of resources. Furthermore, the blade assembly of the blade assembly does not disperse left and right as in the past, and the blade member can be taken in and out from the opening and slit formed in the vertical bar, so if the blade member has deteriorated, disassemble the blade member and the vertical bar, Since only the blade member needs to be replaced, the longer the use of the vertebra, the more efficient use of resources and the lower the cost burden on the consumer.
[0007]
The invention according to claim 2 is the wiper according to claim 1, wherein the blade member is formed to have a uniform cross-sectional shape.
[0008]
According to the second aspect of the present invention, even if the length of the blade member differs depending on the specification, it is only necessary to cut the blade member at an appropriate position, and the blade member having a different length for each specification requires a molding die each time. However, since such a mold is not required, the cost can be significantly reduced.
[0009]
According to a third aspect of the present invention, in the wiper according to the first or second aspect, the vertebra is formed of a stainless steel plate and the thickness thereof is 0.6 mm.
[0010]
According to the third aspect of the present invention, the force for pressing the blade member can be wiped softly to wipe the wiping surface. Also, when the blade assembly is bent, the end of the blade assembly can be bent between the stopper means of the lever and the claw portion, and can be attached and detached.
[0011]
According to a fourth aspect of the present invention, there is provided the wiper according to any one of the first to third aspects, wherein the vertebra is formed with a chamfer on an outer side.
[0012]
According to the fourth aspect of the present invention, when assembling the blade member to the vertical bar, even if the vertical bar is held with bare hands, it is hard to be damaged.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be specifically described with reference to FIGS. 1 to 9.
[0014]
In FIG. 1, reference numeral 1 denotes a wiper of the present invention. The wiper 1 includes a blade member 3 capable of wiping a wiping surface 2 such as a front wind panel of an automobile A, and a holding portion 3a of the blade member 3. A slit 4 formed so as to be held in an engaged state and an opening 5 capable of engaging the holding portion 3a of the blade member 3 in the slit 4 are formed, and the blade member 3 is disposed on the wiping surface 2 side. A blade assembly 7 is composed of a vertibra 6 which can be pressed to the main body 8, and a stay 15 is pivotally supported by a well-known driving means (not shown) with respect to the vehicle body 8 so that the stay 15 can be driven for wiping. A lever 10 capable of holding the blade assembly 7 is held.
[0015]
A yoke 11 is rotatably supported at both ends of the lever 10 by a pin 17. A stopper means for preventing the blade assembly 7 from passing through the end of the yoke 11 without bending. 12 and a claw portion 13 arranged at a position separated from the stopper means 12 so that the blade assembly 7 can be bent so that the blade assembly 7 can pass by avoiding the stopper means 12. Be formed.
[0016]
The blade member 3 is made of a natural rubber material having a hardness of 60 degrees, and has a uniform cross section of 10.6 mm in height. That is, as shown in FIG. 5, the blade member 3 has a substantially inverted triangular shape capable of wiping the wiping surface 2 such as the front window panel of the automobile A and the holding portion 3 a having a width of 6 mm surrounded by the yoke 11. Of the wiping portion 3b and a neck portion 3c having a width of 0.5 mm for appropriately tilting the wiping portion 3b so that the wiping portion 3b can easily follow the wiping surface 2 and is formed on the side surface of the holding portion 3a. The slit 4 of the vertical bra 6 is engaged with the groove 3d having a depth of 2.5 mm.
[0017]
As shown in FIGS. 8 and 9, the vertebra 6 has a plate shape of stainless steel having a thickness of 0.6 mm, and has a gentle arc R of 3000 mm centered on the lower side. The vertebra 6 has a closed loop-shaped slit 4 having a width of 1.2 mm which can engage with the width of 1 mm remaining by the grooves 3 d and 3 d formed in the holding portion 3 a of the blade member 3. An opening 5 having a width of 6.2 mm through which the holding portion 3a of the blade member 3 can pass is formed to communicate with each other, and a slit 4 is formed in a portion 6a where the opening 5 is formed. A portion 6c that protrudes in a jaw shape in the lateral direction from the portion 6b that is to be hooked on the claw portion 13 is formed. In addition, a chamfer 14 having an inclined surface of about 45 degrees is formed on the outer side of the vertebra 6 in a vertical direction. A vertical portion is left between the chamfers 14, 14 so as not to have a sharp cross section, and burrs at the time of forming the vertical bra 6 are removed by the chamfers 14. On the opposite side of the opening 5 from the slit 4, a second slit 4a having the same width as the slit 4 is formed. The opening 5 is shaped like a paddle in a top view by a rectangular portion having a width of 6.2 mm and a length of 6.5 meters on the side opposite to the slit 4 and a slope portion flowing into the slit 4. You are.
[0018]
According to the wiper 1 configured as described above, the end of the blade assembly 7 can be bent between the stopper 13 and the claw 13 formed on the yoke 11 of the lever 10. The blade assembly 7 can pass by avoiding the stopper means 12, and thus the blade assembly 7 can be freely attached to and detached from the yoke 11 of the lever 10, and only the blade assembly 7 can be replaced. This means that purchasing the inexpensive blade assembly 7 reduces the cost burden on the consumer. Since the yoke 11 of the lever 10 can be used for a long time, resources are effectively used.
[0019]
The replacement of the blade assembly 7 will be described in more detail.
[0020]
As shown in FIG. 3, in a state where the blade member 3 of the blade assembly 7 is engaged with the claw portion 13 of the yoke 11 of the lever 10, a portion 6 a of the vertebra 6 where the opening 5 is formed is formed. When the end 3e of the wiping portion 3b of the blade member 3 is pulled obliquely downward, the vertebra 6 of the blade assembly 7 bends between the claw portion 13 and the stopper means 12, and as shown in FIG. Can avoid the free end of the stopper means 12 of the yoke 11, so that the blade assembly 7 can be pulled out. When the blades 7 pass through the four claw portions 13 in this way, the blade assembly 7 becomes a single blade assembly 7 as shown in FIGS. That is, the blade assembly 7 can be replaced.
[0021]
Next, when the end 3e of the wiping portion 3b of the blade member 3 on the side of the portion 6a where the opening 5 of the bartibler 6 is formed is pulled obliquely downward, the holding portion of the blade member 3 is moved from the opening 5 of the bartibler 6. 3a slips off and comes off. The holder 3 a of the blade member 3 is held in the slit 4 by pushing the holder 3 a of the replaced new blade member 3 through the opening 5 of the bartibler 6. At this time, the vertebra 6 does not disperse to the left and right as in the prior art, and the blade 3 can be put in and out of the opening 5 and the slit 4 formed in the vertebra 6. Therefore, when the blade 3 deteriorates, the blade 3 and the vertebra 6 are connected. Need only be disassembled and only the blade member 3 needs to be replaced, so that the vertebrar 6 can be used for a long time, so that resources are effectively used and the burden on the consumer is reduced.
[0022]
To assemble the blade assembly 7 with the new blade body 3 assembled into the yoke 11, first, the holding portion 3a of the blade member 3 of the blade assembly 7 is engaged with the claw portion 13 of the yoke 11. Since the bar tabler 6 engaged with the blade member 3 is bent between the claw portion 13 and the stopper means 12 and is avoided from the stopper means 12, the blade member 3 can be pulled in as it is. In this manner, the blade member 3 is engaged with the four claw portions 13 and the portion 6c where the vertebra 6 is caught is hooked on the claw portions 13, so that the blade assembly 7 is further prevented from moving, and the vertibra 6 is stopped at that position. Both ends of the holding portion 3a of the blade member 3 are lifted by the elasticity, and the blade assembly 7 is prevented from coming off the yoke 11 and assembled by the stopper means 12.
[0023]
Since the blade member 3 is formed in a uniform cross section, even if the length of the blade member 3 varies from 300 mm to 495 mm depending on specifications, it is only necessary to cut the blade member 3 at an appropriate position. In other words, the blade member 3 having a different length for each specification requires a molding die each time. However, since such a die is not required, remarkable cost reduction can be achieved.
[0024]
The vertebra 6 has a plate shape made of stainless steel and has a thickness of 0.6 mm, so that the force for pressing the blade member 3 can be softly wiped to wipe the wiping surface. . Further, when the blade assembly 7 is bent, the end of the blade assembly 7 can be bent between the stopper means 12 of the yoke 11 of the lever 10 and the claw portion 13 so that the blade assembly 7 can be attached and detached. Become.
[0025]
Since the vertebra 6 is formed with a chamfer 14 on the outer side, when assembling the blade member 3 with the vertebra 6, even if the vertebra 6 is held with bare hands, it is hard to be damaged.
[0026]
【The invention's effect】
According to the invention of claim 1, since the end of the blade assembly can be bent while being assembled to the lever, the blade assembly can pass without the stopper means of the lever, Thus, the blade assembly can be detached from the lever, and only the blade assembly can be replaced. This means that the cost burden on the consumer can be reduced by purchasing an inexpensive blade assembly. In addition, the longer the lever can be used, the more effective use of resources. Furthermore, the blade assembly of the blade assembly does not disperse left and right as in the past, and the blade member can be taken in and out from the opening and slit formed in the vertical bar, so if the blade member has deteriorated, disassemble the blade member and the vertical bar, Since only the blade member needs to be replaced, the longer the use of the vertebra, the more efficient use of resources and the lower the cost burden on the consumer.
[0027]
According to the second aspect of the present invention, even if the length of the blade member varies depending on the specification, it is only necessary to cut the blade member at an appropriate position. However, since such a mold is not required, the cost can be significantly reduced.
[0028]
According to the third aspect of the present invention, the force for pressing the blade member can be wiped softly to wipe the wiping surface. Also, when the blade assembly is bent, the end of the blade assembly can be bent between the stopper means of the lever and the claw portion, and can be attached and detached.
[0029]
According to the fourth aspect of the present invention, when assembling the blade member to the vertical bar, even if the vertical bar is held with bare hands, it is hard to be damaged.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a wiper according to the present invention is assembled to an automobile.
FIG. 2 is an enlarged perspective view according to an embodiment of the wiper of FIG. 1;
FIG. 3 is an enlarged side view according to an arrow D in FIG. 2;
FIG. 4 is an operation explanatory view of FIG. 3;
FIG. 5 is an enlarged cross-sectional view taken along line SA-SA of FIG. 3;
FIG. 6 is a top view of only the blade assembly of FIG. 5;
FIG. 7 is a side view of FIG. 6;
FIG. 8 is a top view of the vertebra of FIG. 6;
FIG. 9 is a side view of FIG. 8;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wiper 2 Wiping surface 3 Blade member 3a Blade member holding part 3b Blade member wiping part 4 Slit 5 Opening 6 Vertical bra 7 Blade assembly 8 Body 10 Lever 12 Stopper means 13 Claw part 14 Chamfer

Claims (4)

A wiping portion capable of wiping the wiping surface and a holding portion capable of being held by a lever rotatably supported by the driving means with respect to the vehicle body by driving means are integrally formed, and are bent with respect to the stopper means of the lever. A blade member which is prevented from passing in a state where the blade member is not bent and which can be passed by bending, a slit formed so as to be able to be held in a state where the holding portion of the blade member is engaged, and a holding portion of the blade member in the slit. A wiper blade assembly having an opening capable of engaging and disengaging the blade member and a vertebra capable of pressing a wiping portion of the blade member toward a wiping surface. The wiper blade assembly according to claim 1,
A blade assembly for a wiper, wherein the blade member has a uniform cross-sectional shape. A wiper blade assembly according to claim 1 or claim 2,
The vertebra is in the form of a stainless steel plate, and the plate thickness is set to 0.6 mm. The wiper blade assembly according to any one of claims 1 to 3, wherein
A blade assembly for a wiper, wherein the vertebra has a chamfer formed on an outer side.

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