JPH07215174A - Lip for wiper and wiper using the lip - Google Patents

Abstract

PURPOSE:To thoroughly wipe off water droplets, oil films, etc., attached on a window glass by providing a box type groove part in the longitudinal direction on a window glass contact part roughly on a head end part on a lip provided on a wiper to wipe the window glass of an automobile, etc., and to make contact with the window glass at the time of working. CONSTITUTION:A groove part 40 the sectional shape of which is roughly rectangle is provided in the longitudinal direction of a lip L1 on the head end of a head end part 30 of the lip L1. This groove part 40 is a box type groove part with walls formed on its both ends. The head end part of the head end part 30 forms two top parts 31 and 32 by providing the groove part 40 in this way, and assuming the case when the lip L1 moves from left to right and wipes a window glass, water droplets are wiped by the top part 31 and the droplets which cannot be wiped by this top part 31 is wiped out again by the top part 32 coming immediately after the top part 31, and accordingly, the droplets can be certainly removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper lip and a wiper used for a wiper used in an automobile or the like.

[0002]

2. Description of the Related Art A window glass of an automobile or the like is provided with a wiper for wiping off water drops, detergent and the like adhering to the window when it is raining or when washing a vehicle body. Here, as shown in FIG. 7, the wiper W generally includes a lip L and a lip holder H1.
And a holder H2, and the lip L is formed of an elastic member and directly contacts the window glass to wipe the window glass. Here, the cross-sectional shape of the conventional lip LR is, as shown in FIG. 8, fitted to the lip holder H1 and has a base end portion 10 having a rectangular cross-section, and a tip end portion 30 that is a portion that directly contacts the window glass. It is provided between the base end portion 10 and the front end portion 30 and has a shape having a slightly narrow intermediate portion 20. Here, as shown in FIG. 8, the cross-sectional shape of the lip LR is formed in a substantially triangular cross-section. The conventional lip material is generally made of rubber.

[0003]

However, in the conventional lip, since the tip portion thereof is formed to have a substantially triangular cross section, it is not possible to sufficiently wipe off the water droplets or the oil film adhering to the window glass, and at night, etc. However, there is a problem in that the light is reflected by water droplets adhering to the window glass and the window glass becomes cloudy, resulting in extremely poor visibility of the driver. In particular, in the case of heavy rain, the water droplets adhering to the window glass cannot be completely wiped off, which is a factor that hinders the driver's safe driving.

Further, especially in cold regions in winter, there is a problem that the water adheres in a frozen state due to frost and the like, and the water frozen on the window glass cannot be easily removed only by operating the wiper. there were. Further, since the conventional wiper lip is made of rubber, there is a problem in that it has poor wear resistance and durability due to abrasion. Therefore, the present invention is capable of sufficiently wiping off water drops, oil films, etc. adhering to the window glass, improving the visibility of the driver, and adhering to the window glass in a frozen state in the cold district of winter. It is an object of the present invention to provide a wiper lip and a wiper that can easily remove the water content. Further, it is another object of the present invention to provide a wiper lip and a wiper which are more excellent in the ability to remove water drops and the like and more durable than rubber.

[0005]

A wiper lip according to the present invention is first provided on a wiper for wiping a window glass of an automobile or the like, and in the lip which comes into contact with the window glass during operation, the window glass having a substantially tip end. A box-shaped groove portion is provided in the longitudinal direction at the abutting portion. Secondly, in the above-mentioned first configuration, a plurality of box-shaped groove portions provided in a window glass contacting portion at substantially the tip of the lip are provided in parallel to the longitudinal direction. Is. Thirdly, in the above-described first or second configuration, the lip has an insertion hole that extends in the longitudinal direction inside and has an outlet to the outside on one side, and communicates between the insertion hole and the bottom of the groove portion. However, it is characterized in that it has a notch extending in the longitudinal direction of the lip and having a width narrower than the width of the groove.

Fourthly, in the above-mentioned third structure, the notches have wide portions wider than the width of the notches at predetermined intervals in the longitudinal direction of the lip. Is. A wiper shown as a fifth structure is characterized by having the wiper lip of any one of the first to fourth structures and a lip supporting portion that supports the wiper lip. In addition, a wiper shown as a sixth configuration has a wiper lip of the above-mentioned third or fourth configuration, and a suction device that is continuously provided in an opening of an insertion hole provided in the wiper lip. It is a feature. A wiper shown as a seventh configuration has the wiper lip of the third or fourth configuration, and a warm air generating device connected to an opening of an insertion hole provided in the wiper lip. It is characterized by that. Eighthly, the wiper lip is formed of urethane resin or weather resistant rubber. Furthermore, the wiper shown as the ninth configuration is characterized by having a wiper lip of the eighth configuration and a lip support portion that supports the wiper lip.

[0007]

In the wiper lip according to the first aspect of the present invention, the box-shaped groove portion is provided in the longitudinal direction at the window glass contacting portion at the substantially tip, so that a plurality of contacting portions are formed at the tip of the lip. Therefore, the water droplets and the like that cannot be wiped off at one contact portion are wiped at the other contact portion, so that the effect of removing water droplets and the like can be improved. Further, since the box-shaped groove portion has a structure in which both ends have walls, it is possible to reliably wipe off water droplets and the like as compared with a groove in which both ends are opened. First in fifth configuration
The same applies to the wiper when the wiper lip having the above configuration is used. Further, in the wiper lip according to the second configuration, since the plurality of box-shaped groove portions are provided in parallel with the longitudinal direction, the contact portion with the window glass can be increased, and water droplets can be wiped off one after another. Therefore, the effect of removing water drops and the like can be further enhanced. The same applies to the wiper using the wiper lip of the second configuration in the fifth configuration. The same applies to the wiper using the wiper lip of the second configuration in the fifth configuration.

Next, the wiper lip or wiper in the third, sixth and seventh constructions has an insertion hole extending in the longitudinal direction therein and further has a notch. By connecting a suction device to the opening of, not only the water droplets in the insertion hole, but also water droplets on the window glass can be forcibly sucked, it is possible to further improve the effect of removing water droplets, etc. By connecting the warm air generator, it is possible to effectively remove the water droplets attached in the frozen state on the window glass. The same applies to the wiper using the wiper lip of the third configuration in the fifth configuration. In addition, when the notches have wide portions at predetermined intervals as in the fourth configuration,
Since it is possible to improve the passage of water droplets, it is useful for enhancing the suction effect and the warm air blowing effect when a suction device or a warm air generation device is used. The same applies to the wiper using the wiper lip of the fourth configuration in the fifth configuration.

Further, as shown in the eighth and ninth structures, when the wiper lip is made of urethane resin or weather resistant rubber, it has excellent resistance to strength, elasticity, abrasion, ultraviolet rays, and bending damage. It is possible to expect an extremely high effect of removing water droplets and the like, and also to expect excellent durability.

[0010]

Embodiments of the present invention will be described with reference to the drawings.
The wiper lip according to the present invention is constructed as follows. The wiper lip in each of the following embodiments is used as a wiper by being supported by a lip holder or a holder as shown in FIG. As shown in FIG. 1A, the wiper lip L1 shown as the first embodiment has a base portion 1 whose cross section is formed into a substantially rectangular shape.
0 and a middle portion 20 narrower than the base end portion 10 and a substantially triangular tip portion 30 are present, and the overall shape is approximately rod-like as shown by L in FIG. . Here, the base end portion 10 is a portion fitted into the lip holder, and the intermediate portion 20 is formed to be slightly narrow in order to smooth the left and right swing of the tip end portion 30. Further, the tip portion 30 has a tip portion that directly contacts the window glass.

In this embodiment, a groove 40 having a substantially rectangular cross section is provided at the tip of the tip portion 30 of the lip L1 in the longitudinal direction of the lip. This groove 40 is
As shown in FIG. 1C, it is a box-shaped groove having walls formed at both ends. By providing the groove portion 40 in this way,
The tip portion of the tip portion 30 will form two top portions 31 and 32, and when the wiper is activated, for example, the lip L
Assuming that 1 moves from the left to the right and wipes the window glass, water drops will be wiped at the apex 31 and water that cannot be wiped off at the apex 31 will be wiped again at the apex 32 coming immediately, so be sure. Water drops can be removed. Also,
Since the groove 40 is a box-shaped groove, the wiped water does not leak from both ends, and the removal ability is improved.

Next, in the wiper lip L2 shown as the second embodiment, as shown in FIG.
0, the cross-sectional shape of the intermediate portion 20 is almost the same as that of the first embodiment, but the tip portion 30 is provided with three parallel groove portions 40 having a substantially rectangular cross-sectional shape. These three grooves 40
Are provided along the longitudinal direction of the lip L2.
By constructing as in the second embodiment, the tops 31 to 34
Is provided and more tops are provided than in the case of the first embodiment, and the four tops 31 to 34 wipe the window glass one after another when the wiper operates.
The effect of removing water drops on the window glass can be enhanced more than in the case of the first embodiment. Also in the case of the present embodiment, since the groove 40 is a box-shaped groove having walls provided at both ends,
The ability to remove water droplets is high.

Next, the wiper lip L3 shown as the third embodiment has a base end portion 10 and an intermediate portion as shown in FIGS. 2 (a) and 3 (a), 3 (b) and 4. 20 is the same as that of the first embodiment in that the box-shaped groove portion 40 is provided in the window glass contact portion of the tip portion.
In this embodiment, the insertion hole 50 is provided inside the base end portion 10, and the notch 60 that connects the insertion hole 50 and the groove portion 40 is provided. This insertion hole 50 has a lip L
3 is extended in the longitudinal direction, and as shown in FIG. 3A, an insertion hole 50 is provided at one end of the lip L3 up to the end, but at the other end, the insertion hole 50 is formed as shown in FIG. As shown in b), the insertion hole 50 is closed. Also, the notch 60 is
Similar to the groove 40, both ends are closed. Further, as shown in FIG. 5, between the insertion hole 50 and the groove portion 40, the wide portion 6 having a width wider than the cut 60 is formed at predetermined intervals.
Two are provided.

The use state of the wiper lip L3 of the third embodiment will be described. As shown in FIG. 6, an espirator 70 as a suction device is provided at the opening of the insertion hole of the lip L3 via a pipe portion 75. Has been. That is,
The air in the lip L3 is sucked by sending gas or fluid at high speed from the IN side to the OUT side of the espirator 70. Then, when the wiper is activated, it is possible to forcibly suck the water droplets and the like that have reached the insertion hole 50 from the notch 60 and the wide portion 62 provided inside the lip via the groove portion 40, and greatly improve the water droplet removal capability. be able to.
Further, in the present embodiment, since the espirator 70 as a suction device is forcibly sucked, it is possible to forcibly suck the water droplets or the like adhering to the window glass, so that the effect of removing the water droplets or the oil film can be enhanced. it can. Here, cuts 6 are made at predetermined intervals between the insertion hole 50 and the groove 40.
Since the wide portion 62 having a width wider than 0 is provided, it is possible to improve the passage of water droplets and enhance the suction effect.

Further, in the above description, the case where the suction device is connected to suck the water droplets has been described. By spraying onto the window glass, frost or the like on the window glass can be melted, and the water adhering to the window glass in a frozen state can be easily removed in cold regions. Here, since the wide portion 62 is provided, it is possible to improve the flow of warm air, which is effective in removing frozen water. From the above, the lip L3 is inserted through the pipe portion 75.
It is desirable that the device connected to the device has both a suction function and a hot air generation function.

Further, as shown in FIG. 2B, the wiper lip L4 shown as the fourth embodiment has an insertion hole 50 and a notch 60 as in the case of the third embodiment. The difference from the third embodiment is that, as in the second embodiment, three groove portions 40 provided in the tip portion 30 are provided. In the case of this embodiment as well, as in the case of the third embodiment, wide portions are provided at predetermined intervals between the insertion hole 50 and the groove portion 40. The notch 60 and the wide portion are among the three groove portions. It communicates with the groove located in the middle. The usage state of the wiper lip L4 in this embodiment is the same as that of the third embodiment, and the suction device is used by being connected to the insertion hole. According to the present embodiment, the four tops 31 to 34 wipe the window glass one after another during the operation of the wiper, so that it is possible to further enhance the effect of removing water droplets or oil films on the window glass.

The wiper lip is made of urethane resin or weather resistant rubber. Here, as the urethane resin, for example, polyurethane rubber is used, and this polyurethane rubber is excellent in strength, elasticity, abrasion, resistance to ultraviolet rays, and flexural fracture, and an extremely high effect of removing water droplets and the like can be expected. At the same time, excellent durability can be expected. Further, since polyurethane rubber is easily colored and can be colored in any color, it is possible to expect a design effect when it is commercialized.

[0018]

In the wiper lip and wiper according to the present invention, since the box-shaped groove is provided in the longitudinal direction at the window glass contacting portion at the substantially tip, it is possible to improve the effect of removing water drops and the like. . Further, when a plurality of groove portions are provided in parallel to the longitudinal direction, the contact portion with the window glass can be increased, and water droplets and the like can be wiped off one after another, so the effect of removing water droplets or oil films, etc. It can be increased.

Next, in the case of having an insertion hole extending in the longitudinal direction inside and further having a notch, by connecting a suction device to the opening of the insertion hole, not only the water drop in the insertion hole, Water drops on the window glass can be forcibly sucked in, and the effect of removing water drops, etc. can be further improved,
Further, by connecting the warm air generator, it is possible to effectively remove the water droplets that have adhered to the window glass in a frozen state. Further, in the case where the wide portion is provided at every predetermined interval, the passage of water drops can be improved, which is useful for enhancing the suction effect. Further, when the wiper lip is made of urethane resin or weather resistant rubber, it has excellent resistance to strength, elasticity, abrasion, ultraviolet rays, and bending damage, and it can be expected to have an extremely high effect of removing water drops and the like. , You can expect excellent durability.

[Brief description of drawings]

1A and 1B are views showing a wiper lip according to the present invention, FIG. 1A is a sectional view of a wiper lip of a first embodiment, and FIG. 1B is a sectional view of a wiper lip of a second embodiment. And (c) is a partial perspective view of the wiper lip of the first embodiment.

2A and 2B are views showing a wiper lip according to the present invention, FIG. 2A is a sectional view of a wiper lip of a third embodiment, and FIG. 2B is a sectional view of a wiper lip of a fourth embodiment. Is.

FIG. 3 is a view showing a wiper lip in the third embodiment, (a) is a partial perspective view showing one end of the wiper lip, and (b) is the other end of the wiper lip. It is a partial perspective view showing.

FIG. 4 is a perspective view of a wiper lip according to a third embodiment.

5 is a sectional view taken along line XX of FIG.

FIG. 6 is an explanatory view showing a usage state of a wiper lip in the third embodiment.

FIG. 7 is a schematic view showing a general shape of a wiper.

FIG. 8 is a cross-sectional view showing the shape of a conventional wiper lip.

[Explanation of symbols]

 L1, L2, L3, L4 Wiper lip 10 Base end part 20 Intermediate part 30 Tip part 40 Groove part 50 Insertion hole 60 Notch 62 Wide part 70 Espirator

Claims (9)

[Claims] 1. A wiper for wiping a window glass of an automobile or the like, and a lip that comes into contact with the window glass at the time of operation, a box-shaped groove portion is provided in a longitudinal direction at a portion of the window glass that comes into contact with the window glass. And lip for wiper. 2. The lip for a wiper according to claim 1, wherein a plurality of box-shaped groove portions provided in a window glass contacting portion at substantially the tip of the lip are provided in parallel to the longitudinal direction. 3. The lip is a notch that extends in the longitudinal direction inside and has an insertion hole having an outlet to the outside on one side, and communicates between the insertion hole and the bottom of the groove portion, and is a notch extending in the longitudinal direction of the lip. The wiper lip according to claim 1 or 2, wherein the lip has a notch having a width narrower than the width of the groove. 4. The wiper lip according to claim 3, wherein each of the cuts has a wide portion that is wider than the width of the cut at predetermined intervals in the longitudinal direction of the lip. 5. A wiper comprising: the wiper lip according to claim 1, 2 or 3 or 4, and a lip support portion that supports the wiper lip. 6. A wiper comprising: the wiper lip according to claim 3; and a suction device connected to an opening of an insertion hole provided in the wiper lip. 7. A wiper, comprising: the wiper lip according to claim 3; and a warm air generator connected to an opening of an insertion hole provided in the wiper lip. 8. A wiper lip, wherein the wiper lip is formed of urethane resin or weather resistant rubber. 9. A wiper lip according to claim 8,
A wiper having a lip support portion that supports the lip for the wiper.