JPH10264776A - Wiper for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wipe out rainwater or the like on the window surface accurately and powerfully with relatively weak ealstic pressing force by providing the tip edge side side-face of wiper rubber with one or plural suction grooves recessed along the whole length of the wiper rubber. SOLUTION: Wiper rubber 3 can rake up most of rainwater or the like adhering to the surface of a window W, in the proceeding direction, and moves while bending the tip edge side almost in V-shape or L-shape by elastic pressing action so as to place the side face with a suction groove 3A recessed, in the state of coming in pressure contact with the surface of the window W. The inside of the suction groove 3A is therefore put in a vacuum state to display powerful suction force. The rainwater or the like remaining on the surface of the window is therefore taken into the suction groove 3A by this suction force. As a result, the rainwater or the like is wiped out clean without adjusting the pressing force of the wiper rubber too much, so that the burden of the wiper rubber and its drive source is reduced to prolong the product life, and the drive source such as a motor can be miniaturized to reduce product cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile wiper for automatically closing an automobile window.

[0002]

2. Description of the Related Art A conventional wiper for an automobile holds an elongated wiper rubber having a substantially plate-shaped cross section in a holder.
By rotating the rotating arm connected to the holder reciprocally by a motor or the like, the wiper rubber is reciprocated while the leading edge side thereof is pressed against the window surface to scrape rainwater or the like adhering to the window surface. It is configured to remove.

[0003]

However, in the above-mentioned conventional automobile wiper, the pressing force of the wiper rubber against the window surface is partially uneven, the mounting condition of the wiper rubber, the material fatigue, or the like. If sufficient elastic pressure cannot be exerted due to hardening, etc., there is a problem that dirt such as rainwater remains as streak-like linear marks after wiping with a wiper rubber, and rainwater adheres to a window surface. Even if the amount is extremely large, rainwater and the like cannot be wiped cleanly unless the wiper rubber is reciprocated many times continuously, so that there is also a problem that it takes time to wipe.

However, the above-mentioned problems can be solved to some extent by increasing the elastic pressing force of the wiper rubber against the window surface. However, if the elastic pressing force is increased, the frictional resistance of the wiper rubber increases, and the reciprocating rotation speed is reduced. There is a problem that removal becomes too late in the event of heavy rain, etc. In addition, increasing the output of the motor to increase the reciprocating rotation speed increases the load (wear and damage) on the wiper rubber, shortening the product life. In addition, there is a problem that the product cost increases due to an increase in the size of the motor.

[0005] Therefore, the technical problem of the present invention is to remove rainwater or the like on the window surface regardless of the degree of attachment of the wiper rubber or the elastic pressing force and without being affected by the amount of rainwater or the like adhering to the window surface. An object of the present invention is to provide an automobile wiper that can be wiped off strongly and accurately with relatively weak elastic pressing force.

[0006]

Means taken by the present invention to solve the above-mentioned technical problems are as follows.

(1) A wiper for automatically wiping a window of an automobile, wherein one or a plurality of wipers are provided along the entire length of the wiper rubber on the side of the tip edge side of the wiper rubber which is formed to be elongated using rubber or synthetic rubber. Concave a plurality of suction grooves. (Claim 1)

(2) A wiper for automatically wiping a window of an automobile, wherein at least two wipers are provided along the entire length of the wiper rubber on the side of the tip edge side of the wiper rubber which is formed to be elongated using rubber or synthetic rubber. A book or two or more suction ridges should be projected in parallel at an interval. (Claim 2)

(3) Both the suction groove and the suction ridge are provided on both side surfaces on the tip edge side of the wiper rubber. (Claim 3)

According to the first aspect of the present invention, when the wiper rubber is rotated while being pressed against the window surface, most of the rainwater or the like attached to the window surface is scraped and removed. In particular, when the wiper rubber moves on the window surface while being bent by its elastic pressing force, the suction groove portion recessed on the bent pressing surface (side surface) is in a vacuum state. The strong suction force of this vacuum acts on the window surface to absorb the remaining rainwater, etc., so that the wind surface can be streaked without increasing the pressing force or repeating reciprocating rotation many times. It is possible to wipe off rainwater and the like in a short time without leaving any linear traces.

According to the means according to claim 2 described in the above (2), by rotating the wiper rubber while pressing it against the window surface, most of the rainwater or the like attached to the window surface can be scraped and removed. At the same time, when the wiper rubber moves on the window surface while being bent by the elastic pressing force, a strong suction force due to vacuum is generated in the space between the suction ridges as in the means described in the above (1). This suction force makes it possible to wipe off rainwater and the like in a short time without leaving streak-like linear marks on the window surface.

According to the third aspect of the invention described in the third aspect, the suction groove described in the first aspect or the suction ridge described in the second aspect is connected to the wiper rubber. Since the wiper rubber is provided on both side surfaces of the wiper rubber, the wiper rubber exerts a suction effect by vacuum in both cases of reciprocating rotation, thereby making it possible to wipe off rainwater or the like on the window surface in a short time in a clean and efficient manner.

As described above, the above (1) to
By solving the above technical problem by means of (3),
The problem of the conventional technique can be solved.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle wiper according to an embodiment of the present invention.
FIG. 1 is a perspective view showing a state in which an automobile wiper 1 of the present invention is attached to an automobile S and a window W is actually being wiped. The wiper 1 according to the present invention is shown in FIGS. And a structure as shown in FIG.

FIG. 2 is a partially omitted front view illustrating the structure of the wiper rubber used in the present invention, and FIG. 3 is an enlarged sectional view taken along the line AA of FIG. The holder 3 is an elongated wiper rubber whose upper end 3T side is held by the holder 2, and one or a plurality of wiper rubbers are provided on one or both side surfaces of the tip edge side of the wiper rubber 3 along the entire length of the wiper rubber 3. The suction grooves 3A, 3A are recessed so that when the window W is wiped with the wiper rubber 3, a suction action by vacuum is exerted on the suction grooves 3A.

FIG. 4 is a partially omitted front view illustrating another structure of the wiper rubber used in the present invention, and FIG.
FIG. 4 is an enlarged cross-sectional view taken along a line, in which at least two or two or more suction ridges 3 are provided on one or both side surfaces of the tip edge side of the wiper rubber 3 along the entire length of the wiper rubber 3.
B and 3B are protruded in parallel with an interval 3C, and the suction groove 3A shown in FIGS.
The same vacuum suction mechanism is used.

FIG. 6A is a cross-sectional view showing a state in which the window W is being wiped using the wiper rubber 3 shown in FIGS. 2 and 3 above, and the upper end 3T of the window W is held by the holder 2. The wiper rubber 3 moved in the direction of the arrow in the drawing is
Most of the rainwater and the like adhering to the surface of the window W can be scraped in the traveling direction, and the elastic pressing action causes the leading edge to move while bending in a substantially L-shape or a substantially L-shape as shown in the figure. In order to make the side surface in which the suction groove 3A is depressed into contact with the surface of the window W, the inside of the suction groove 3A is in a vacuum state and a strong suction force is exerted, and the rainwater remaining on the surface of the window W And the like can be taken into the suction groove 3A by this suction force and can be wiped clean.

FIG. 6B is a cross-sectional view showing a state in which the surface of the window W is being wiped using the wiper rubber 3 shown in FIGS. 4 and 5, and the wiper rubber 3 is also parallel. The above-mentioned FIG.
A suction force based on the same vacuum action as the suction groove 3A shown in FIG.
It can be sucked in and wiped clean.

The above-described suction groove 3A and suction ridge 3B,
When the space 3C between the 3Bs is formed on both side surfaces of the tip edge of the wiper rubber 3 as shown in the figure, the suction action based on the vacuum action is performed by the wiper rubber 3 in a direction opposite to the arrow direction shown in FIG. The wiper rubber 3 can exert the suction force by the vacuum action at any time of the reciprocating rotation.

Since the automobile wiper according to the present invention has the above-described configuration, if the wiper rubber 3 is attached to the window W of the automobile S as shown in FIG. Rain water and the like adhering to the W surface can be scraped and removed, and rain water and the like remaining on the surface of the window W without being able to be scraped are also generated in the suction groove 3A or the interval 3C of the wiper rubber 3 respectively. It can be wiped clean by the suction force based on the vacuum action.

[0021]

Thus, according to the automobile wiper of the present invention, it is possible to not only wipe the rainwater and the like on the window surface cleanly in a short time, but also to adjust the pressing force of the wiper rubber against the window surface not so strongly. The wiper rubber can be wiped cleanly without leaving linear traces of rainwater on the window surface, reducing the load on the wiper rubber and its drive source, extending the product life, and making the wiper rubber have relatively low resistance. In addition, it is possible to reduce the cost of the product by reducing the size of the drive source such as a motor. It is well suited to practice.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automobile implementing a wiper according to the present invention.

FIG. 2 is a partially omitted front view showing an example of a wiper rubber used in the present invention.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 2;

FIG. 4 is a partially omitted front view showing another example of the wiper rubber used in the present invention.

FIG. 5 is an enlarged sectional view taken along line BB of FIG. 4;

FIGS. 6A and 6B are cross-sectional views showing a state where each wiper rubber shown in FIGS. 2 and 4 is actually wiping the window surface.

[Explanation of symbols]

 S Car W Window 1 Car wiper 2 Holder 3 Wiper rubber 3A Suction groove 3B Suction ridge 3C Interval

Claims (3)

[Claims] 1. A wiper for automatically wiping a window of an automobile, wherein one or a plurality of wipers are provided along the entire length of the wiper rubber on a side of a tip edge side of the wiper rubber formed entirely elongated using rubber or synthetic rubber. An automotive wiper having a concave suction groove. 2. A wiper for automatically wiping a window of an automobile, wherein at least two wipers are provided along the entire length of the wiper rubber on a side of a tip edge side of the wiper rubber which is formed to be elongated using rubber or synthetic rubber. Alternatively, a wiper for an automobile, wherein two or more suction ridges are protruded in parallel at an interval. 3. The wiper for an automobile according to claim 1, wherein both the suction groove and the suction ridge are provided on both side surfaces on the tip end side of the wiper rubber.