Patent Description:
In a motor vehicle, a wiper is usually installed on the windshield to remove rain or dust that blocks the driver's line of sight, thereby ensuring that the driver is given a clear field of vision.

A conventional wiper is installed independently of a cleaning system, wherein the cleaning system is usually arranged under the bonnet, a cleaning agent is sprayed directly to an upper middle part of the windshield through a nozzle, and consequently, before the wiper wipes the cleaning agent off, the driver cannot see clearly the road conditions ahead, which often causes traffic accidents; moreover, since the spray path is long, the spray area is large, and a large amount of cleaning agent is needed, a great waste of resources is caused. <CIT> shows a similar wiper arm.

Therefore, an objective of the present application is to provide a wiper arm, a wiper and a vehicle, which can at least partially solve the above-mentioned problems.

According to one aspect of the present application, a wiper arm is provided, which comprises a wiper arm body and a wiper arm end piece, the wiper arm end piece being fixedly connected to one end of the wiper arm body to hold a wiper blade, the wiper arm being further provided with a nozzle and a hose, wherein.

According to an embodiment of the present application, the arrangement of a nozzle on the wiper arm ensures that a cleaning fluid is quickly wiped off, the driver is given a clear field of vision, and the dosage of cleaning fluid usage may also be reduced.

According to the invention, the nozzle comprises a nozzle body, two accommodating grooves, and a hose joint, the two accommodating grooves and the hose joint protruding from one side of the nozzle body; the extension section comprises a middle section and two edge sections, the two edge sections being insertable into the two accommodating grooves, respectively; and the hose joint is connectable to the hose.

According to the invention, the extension section extends as a whole towards the outward swing side of the wiper arm, and the notches of the two accommodating grooves face each other.

According to the invention, the two edge sections sink relative to the middle section of the extension section, so that the upper surface of the nozzle is flush with the upper surface of the middle section.

In some unclaimed embodiments, the middle section of the extension section extends towards the outward swing side of the wiper arm, and the two edge sections are bent towards the bottom side of the middle section and extend towards each other along the bottom surface of the middle section; the notches of the two accommodating grooves face away from each other.

In some embodiments, the wiper arm end piece further comprises a hook for holding a wiper blade, and the middle section of the extension section is deflected downwards towards the windshield side relative to the upper surface of the hook.

In some embodiments, a downward deflection angle of the middle section corresponds to an installation tilt angle of the windshield.

According to an embodiment of the present application, a downward deflection angle of the middle section is caused to correspond to an installation tilt angle of the windshield, so that the nozzle and the extension section block the driver's line of sight as little as possible, thereby improving driving safety.

In some embodiments, at least one of the edge sections is provided with a protrusion, and at least one of the accommodating grooves is provided with an opening for accommodating the protrusion.

According to an embodiment of the present application, the arrangement of a protrusion and an opening makes it possible to prevent the nozzle from loosening from the extension section.

In some embodiments, after the nozzle is connected to the extension section, the hose joint is shielded by the extension section.

In some embodiments, the nozzle body is in fluid communication with the hose joint, and the nozzle body further comprises a flow channel for a cleaning fluid, the flow channel penetrating the nozzle body.

In some embodiments, the wiper arm further comprises a wiper arm seat, the wiper arm seat being rotatably connected to the other end of the wiper arm body and used for connecting a driving motor.

According to another aspect of the present application, a wiper is further provided, comprising any of the above-described wiper arms and wiper blades, wherein the wiper blade is held by the wiper arm end piece of the wiper arm.

According to another aspect of the present application, a vehicle is further provided, comprising any of the above-described wiper arms, or the above-described wiper.

The above-described characteristics, technical features, advantages, and implementation mode of the present application will be further explained below in a definite and easy-to-understand manner by a description of preferred embodiments and with reference to the drawings, wherein.

Embodiments of the present application will be described exemplarily below. As those skilled in the art should realize, the embodiments explained may be amended in various ways without departing from the concept of the present invention. Thus, the accompanying drawings and the description are in essence demonstrative and non-limiting. In the following text, identical drawing reference labels generally indicate functionally identical or similar elements.

According to the general idea of the present application, a wiper arm is provided, which comprises a wiper arm body and a wiper arm end piece, the wiper arm end piece being fixedly connected to one end of the wiper arm body to hold a wiper blade, the wiper arm being further provided with a nozzle and a hose, wherein the nozzle is connected to an extension section of the wiper arm end piece towards the return side or the outward swing side of the wiper arm; the hose extends along the wiper arm body, and one end of the hose is connected to the nozzle to deliver a cleaning fluid to the nozzle.

<FIG> shows a top view of the wiper arm <NUM> according to an embodiment of the present application, and <FIG> shows a bottom view of the wiper arm <NUM> in <FIG>. As shown in <FIG> and <FIG>, the wiper arm <NUM> comprises a wiper arm body <NUM>, a wiper arm end piece <NUM>, and a wiper arm seat <NUM>, wherein the wiper arm end piece <NUM> is fixedly connected to one end of the wiper arm body to hold a wiper blade; the wiper arm seat <NUM> is rotatably connected to the other end of the wiper arm body <NUM> to connect to a driving motor. In a non-restrictive example, the wiper arm end piece <NUM> is made by blanking and is riveted to the wiper arm body; in addition, the wiper arm end piece <NUM> comprises a hook <NUM> for holding a wiper blade. In a non-restrictive example, the wiper arm body <NUM> and the wiper arm seat <NUM> are pivotally connected by a pivot <NUM>; in addition, the wiper arm seat <NUM> comprises a connecting hole <NUM> for connecting to the output shaft of a driving motor.

As shown in <FIG> and <FIG>, the wiper arm <NUM> is further provided with a hose <NUM> and a nozzle <NUM>, and the hose <NUM> extends along the wiper arm body <NUM>, of which one end is connectable to a cleaning fluid supply container or another supply channel connected to the supply container, and the other end is (for example, but not limited to, detachably) connected to the nozzle <NUM> to supply a cleaning fluid to the nozzle <NUM>. The nozzle <NUM>, used for spraying a cleaning fluid to a windshield, is connected to an extension section <NUM> of the wiper arm end piece <NUM>, the extension section <NUM> is provided on the outward swing side B of the wiper arm <NUM>, and the nozzle <NUM> is connected to the extension section <NUM> towards the return side Z. It should be noted that a wiping area of a wiper comprising the wiper arm <NUM> and a wiper blade on a windshield is defined by a return pause position close to the bonnet of the vehicle and a outward swing pause position away from the bonnet of the vehicle, and, correspondingly, the outward swing side B refers to the side of the wiper arm <NUM> close to an outward swing pause position, wherein, as shown in <FIG>, the outward swing side B is indicated as the right side of the wiper arm <NUM>; the return side Z refers to the side of the wiper arm <NUM> close to the bonnet of the vehicle, and, as shown in <FIG>, the return side is indicated as the left side of the wiper arm <NUM>.

In an example, a snap connection is established between the nozzle <NUM> and the extension section <NUM>. Specifically, as shown in <FIG>, the extension section <NUM> extends towards the outward swing side B, and comprises a middle section <NUM>, and edge sections <NUM> and <NUM> on either side of the middle section <NUM>; the nozzle <NUM> comprises a nozzle body <NUM>, an accommodating groove <NUM>, an accommodating groove <NUM>, and a hose joint <NUM>, wherein the accommodating groove <NUM>, the accommodating groove <NUM>, and the hose joint <NUM> all protrude from one side of the nozzle body <NUM>; the notches of the accommodating groove <NUM> and the accommodating groove <NUM> face each other, and the edge section <NUM> and the edge section <NUM> of the extension section <NUM> are insertable into the accommodating groove <NUM> and the accommodating groove <NUM>, respectively; the hose joint <NUM> is detachably connected to the hose <NUM>.

According to the invention, as shown in <FIG>, the edge section <NUM> and the edge section <NUM> of the extension section <NUM> sink relative to the middle section <NUM>, so that after the nozzle <NUM> is connected to the extension section <NUM>, the upper surface of the nozzle <NUM> is substantially flush with the upper surface of the middle section <NUM>, thereby improving the aesthetic appeal of the wiper arm <NUM>.

In another unclaimed example, as shown in <FIG>, the extension section <NUM> comprises a middle section <NUM>, and the edge sections <NUM> and <NUM> on either side of the middle section <NUM>, wherein the middle section <NUM> extends towards the outward swing side B, while the edge sections <NUM> and <NUM> are bent towards the bottom side of the middle section <NUM> and extend towards each other along the bottom surface of the middle section <NUM>; the nozzle <NUM> comprises a nozzle body <NUM>, an accommodating groove <NUM>, an accommodating groove <NUM>, and a hose joint <NUM>, wherein the accommodating groove <NUM>, the accommodating groove <NUM>, and the hose joint <NUM> all protrude from one side of the nozzle body <NUM>; the notches of the accommodating groove <NUM> and the accommodating groove <NUM> face away from each other, and the edge section <NUM> and the edge section <NUM> of the extension section <NUM> are insertable into the accommodating groove <NUM> and the accommodating groove <NUM>, respectively; the hose joint <NUM> is detachably connected to the hose <NUM>.

Preferably, as shown in <FIG>, <FIG> and <FIG>, after the nozzle <NUM> is snap-connected to the extension section <NUM>, the hose joint <NUM> is shielded by the extension section <NUM>, thereby improving the aesthetic appeal of the wiper arm <NUM>.

Preferably, as shown in <FIG>, <FIG>, <FIG>, and <FIG>, at least one of the edge section <NUM> and the edge section <NUM> is provided with a protrusion <NUM>, correspondingly at least one of the accommodating groove <NUM> and the accommodating groove <NUM> is provided with an opening <NUM>, and the nozzle <NUM> is deformable to make the protrusion <NUM> snap into the opening <NUM>, thereby preventing the nozzle <NUM> from falling off the extension section <NUM> easily. Herein, the protrusion <NUM> may be triangular or have any other shape.

As shown in <FIG> and <FIG>, the nozzle body <NUM> may further comprise a flow channel <NUM> for a cleaning fluid, and the flow channel penetrates the nozzle body <NUM>. In addition, the hose joint <NUM> is in fluid communication with the nozzle body <NUM>, so that a cleaning fluid can flow into the nozzle body <NUM> from the hose joint.

Preferably, as shown in <FIG>, at least one part of the extension section <NUM> is deflected downwards by an angle α towards the windshield side relative to the upper surface of the hook <NUM>. In the examples shown in <FIG>, said at least one part comprises a middle section <NUM> and edge sections <NUM> and <NUM>, and, in the examples shown in <FIG>, said at least one part comprises a middle section <NUM>. More preferably, the above-mentioned deflection angle α corresponds to an installation tilt angle of the windshield, so that when the wiper is installed on the windshield of a vehicle, in the direction of observation by a driver in the vehicle, the nozzle <NUM> and the extension section <NUM> block the driver's path of observation as little as possible, which allows a reduction of interference by the wiper to the driver to ensure driving safety.

It should be noted that although it is shown in the preceding example that the nozzle <NUM> and the extension section <NUM> are located on the outward swing side B of the wiper arm <NUM>, and that the nozzle <NUM> is connected to the extension section <NUM> towards the return side Z, it is understandable that the nozzle <NUM> and the extension section <NUM> may also be located on the return side Z of the wiper arm <NUM>, and that the nozzle <NUM> is connected to the extension section <NUM> towards the outward swing side B.

According to an embodiment of the present application, the arrangement of a nozzle on the wiper arm ensures that a cleaning fluid is quickly wiped off, the driver is given a clear field of vision, and the cleaning fluid usage may also be reduced.

According to another aspect of the present application, it further relates to a wiper, comprising a wiper arm <NUM> as described above and a wiper blade, wherein the wiper blade is held by the wiper arm end piece <NUM> of the wiper arm <NUM>.

According to yet another aspect of the present application, it further relates to a vehicle, comprising a wiper arm <NUM> as described above, or a wiper as described above.

Claim 1:
Wiper arm (<NUM>), comprising a wiper arm body (<NUM>) and a wiper arm end piece (<NUM>), the wiper arm end piece (<NUM>) being fixedly connected to one end of the wiper arm body (<NUM>) to hold a wiper blade, characterized in that the wiper arm (<NUM>) is further provided with a nozzle (<NUM>) and a pipe (<NUM>), wherein
the nozzle (<NUM>) is connected to an extension section (<NUM>) of the wiper arm end piece (<NUM>) towards the return side (Z) or the outward swing side (B) of the wiper arm (<NUM>);
the pipe (<NUM>) extends along the wiper arm body (<NUM>), and one end of the pipe (<NUM>) is connected to the nozzle (<NUM>) to deliver a cleaning fluid to the nozzle (<NUM>), wherein the nozzle (<NUM>) comprises a nozzle body (<NUM>), two accommodating grooves (<NUM>; <NUM>), and a pipe connector (<NUM>), the two accommodating grooves (<NUM>; <NUM>) and the pipe connector (<NUM>) protruding from one side of the nozzle body (<NUM>); the extension section (<NUM>) comprises a middle section (<NUM>) and two edge sections (<NUM>; <NUM>), the two edge sections (<NUM>; <NUM>) being insertable into the two accommodating grooves (<NUM>; <NUM>), respectively; the pipe connector (<NUM>) is connectable to the pipe (<NUM>),
characterized in that
the extension section (<NUM>) extends as a whole towards the outward swing side of the wiper arm (<NUM>), and in that the notches of the two accommodating grooves (<NUM>; <NUM>) face each other,
wherein the two edge sections (<NUM>; <NUM>) sink relative to the middle section (<NUM>) of the extension section (<NUM>), so that the upper surface of the nozzle (<NUM>) is flush with the upper surface of the middle section (<NUM>).