The present invention relates to an air wiper for removing or protecting rainwater falling on a window shield of a vehicle, and more particularly, to an air wiper device suitable for a rearview mirror. In order to secure a running clock of a vehicle in rainy weather, a window wiper has been conventionally installed in a front window or a rear window of a vehicle. Conventional window wipers are designed to wipe the surface of a car window by turning a thin rubber braid with a motor, so it can only be installed in the front window, the rear window, or the headlight area, and cannot be applied to the rearview mirror. . Experience shows that there is a need to secure the front clock as well as the side clock or the rear clock in driving the vehicle during rainy weather, especially in the downtown area. However, since rainwater falling on the rearview mirror cannot be removed by the conventional window wiper device, it is usually difficult to secure a rear view through the rearview mirror in rainy weather. In order to solve this problem, the rearview mirror disclosed in Japanese Patent Application Laid-Open No. 62-16072 has a blower installed inside the mirror case, and the air outlet of the blower pipe is directed toward the side window of the vehicle or toward the mirror surface of the rearview mirror. The arranged structure is illustrated. According to the rearview mirror having such a structure, since the air curtain is formed in the side window or the mirror surface of the vehicle, it is possible to secure the field of view through the rearview mirror even in the rain, but the following difficulties remain in practical use. Since the support for supporting the mirror and the mechanical elements for adjusting the inclination of the support are accommodated inside the rearview mirror case, the blower is inevitably disposed without sufficient space. In addition, since the air discharge port is exposed to one side of the mirror inside the rearview mirror case, the mirror area of the rearview mirror is encroached by the air outlet, which causes a narrow view through the mirror surface. There is a flaw in the removal of rain water by the air curtain because there is no structural consideration that allows compressed air to be ejected at a uniform density to the mirror surface or side window of the rearview mirror at the air outlet. On the other hand, the water droplet removing device disclosed in Japanese Patent Application Laid-Open No. 59-72158 uses a ventilator provided in a vehicle as a blowing source, and the amount of air supplied from the ventilator described above to the rearview mirror is the rear mirror surface and the side window surface of the car window. It is proposed to lead to the formation of air curtains in the area. The water droplet removing device of this structure has a relatively slow wind speed discharged when the vehicle is running, and does not show any effect, and the nozzle hole for injecting the supplied air volume is uniformly formed so that the upper and lower surfaces of the rearview mirror surface and the side window There is a disadvantage that the velocity of the air injected over the air does not appear uniformly, so the effect of preventing the fall of rainwater by the air curtain does not appear as intended. An object of the present invention, in order to solve the above-mentioned problems, the rear view mirror air wiper that can be easily installed without encroaching the clock of the rear view mirror to form an air curtain of uniform density on both the side window and the mirror surface of the vehicle. In providing a device. According to the above object, the present invention consists of at least one pair of injection pipes through which a plurality of nozzle holes are drilled, a branch pipe connecting these injection pipes with a pneumatic pipe, and a compressor for supplying compressed air in communication with the pneumatic pipe. Provides air wiper for rearview mirror. In the above-described invention, a pair of injection pipes are accommodated in the housing of the rearview mirror to guide the compressed air supplied from the compressor to the rearview mirror side, one of which removes rainwater falling on the rearview mirror surface, and the other is a vehicle. Partial removal of rainwater falling on the surface of the side window of the vehicle allows the driver to secure a rear view through the rearview mirror during rainy weather. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a partial perspective view showing the main part of the present invention, a pair of injection pipe (1) (2) is a flat hollow tube with a plurality of nozzle holes (3) (4) are respectively drilled on the outer peripheral side In addition, the diameter of these injection pipes (1) and (2) becomes narrower toward the end, so that the compressed air supplied into the pipe can be uniformly supplied to the end. The first injection pipe (1) has a rearview mirror ( The nozzle hole 3 is directed to the mounting portion J of the case C surrounding M) and directed to the surface of the side window W. Similarly to the 1st injection pipe 2, the 2nd injection pipe 2 is installed in the mounting part C, and orients the nozzle hole 4 to the surface of the rearview mirror M. As shown in FIG. These injection pipes (1) and (2) are integrally communicated by the branch pipes (5), and the bendable pneumatic pipes (6) which lead compressed air from a conventional compressor described later are connected to the branch pipes (5). It is. The injection pipe (1) (2) described above is to form an air curtain on the surface of the side window (W) and the rearview mirror (M) by blowing compressed air through each nozzle hole (3) (4), Each nozzle hole (3) (4) is preferably to have a structure that allows the diffusion of compressed air. 2 shows an example of the nozzle holes 3 and 4 which can achieve the diffusion of the compressed air. In this example, the injection pipes (1) and (2) are made of flat pipes so that they can be installed in a narrow space, and the nozzle holes (3) and (4) drilled through the injection pipes (1) and (2) are placed on the outward side. By holding the plate surface 7, the compressed air to be injected can be quickly diffused. The pair of injection pipes 1 and 2 described above are arranged in a pair of left and right rearview mirrors, respectively, and the flow of compressed air through them is performed as shown in FIG. Compressed air is produced by a conventional compressor (8) and stored at a constant pressure via an arc mutor (9). The compressor (8) is closed by a compressor relay (11) which is switched on by an operation switch (10). As the power is turned on and operated according to the load, the battery of the vehicle is driven by a power source or by a motor using the engine as a freezing source. The arc mutor 9 is equipped with an air valve 12 at the output end, and the air valve 12 is opened and closed in conjunction with the window window operating switch 13 for the front window. Therefore, the compressed air generated by the compressor 8 and stored in the arc mutor 9 is opened when the driver operates the window motor so that the air valve 12 is opened in synchronism with the compressed air. It is supplied to the injection pipe (1) (2) of the rearview mirror, is ejected through the nozzle hole (3) (4) and diffuses through the plate surface (7) to form an air curtain, so the side window (W) and rearview mirror (M) ) Raindrops falling on) will be removed and protected. In the ejection of compressed air, as described above, each of the injection pipes 1 and 2 is narrower toward the end, so that the flow rate of the compressed air passing through this portion is faster at the end of the pipe. As a result, the amount of compressed air ejected from each nozzle hole 3, 4 is approximated to each other, and as a result, an air curtain of uniform density is formed. The action that the rainwater and the like are completely removed and protected by the air curtain is the same as in the prior art. However, according to the present invention, firstly, since the injection tube is flat, it is easy to install the mirror surface of the rearview mirror as far as possible from the driver's watch, and secondly, the inner diameter of the injection tube is narrower toward the end and thus compressed. Since the amount of compressed air that is ejected from each nozzle hole located close to the air source or the nozzle hole located far from the air source becomes constant, a uniform rear surface mirror or the surface of the side window can form a uniform density of air curtain, so that the driver can see a clear rear view. It has the advantage of providing it.
