Vehicles and windshield wipers and wiper arms thereof

Abstract

The present application provides a vehicle and its wiper and wiper arm. The head of the wiper arm includes a pivotal portion A and a fixing portion for fixing to a drive shaft. The arm portion of the wiper arm includes a pivotal portion B, a mounting portion for mounting a wiper blade, a top surface and a bottom surface. The bottom surface is the side facing the wiped surface during operation. The top surface is opposite to the bottom surface. The pivotal portion A is pivotally connected to the pivotal portion B, and a top recess is provided on the top surface. The elastic member is configured to be elastically pre-deformed and connected between the head and the arm portion, so that the arm portion is subjected to a force in the direction of its bottom surface. The wiper is easy to arrange and has a beautiful appearance.

Description

Technical Field

[0001] The present application relates to a windshield wiper device, in particular to a windshield wiper for a vehicle windshield and a wiper arm thereof. Background Art

[0002] The windshield wiper of a vehicle glass includes a wiper arm and a wiper blade. The wiper arm is driven to reciprocate by an electric driver, and the wiper blade is detachably mounted on the end of the wiper arm, so that the wiper arm drives the glass to reciprocate and wipe the glass to clean the glass and keep the glass clear. In order to maintain a large enough clear area, the wiper blade must be large enough. However, the wiper is too large, unsightly, and unsafe to be exposed on the glass. In addition, the position of the wiper is usually also suitable for arranging other components, such as glass washer fluid nozzles, cameras, etc. The wiper is likely to hinder the arrangement of these components. Summary of the invention

[0003] The present application mainly solves the problem of inconvenient arrangement of existing wipers.

[0004] In order to solve the above technical problems, the present application provides a wiper arm, which includes:

[0005] A head portion including a pivoting portion and a fixing portion for fixing to a drive shaft;

[0006] The arm portion comprises a pivotal portion B, a mounting portion for mounting a wiper blade, a top surface and a bottom surface, wherein the bottom surface is the side facing the wiped surface during operation, the top surface is opposite to the bottom surface, the pivotal portion A is pivotally connected to the pivotal portion B, the arm portion is longitudinally shaped, a top concave portion penetrating in the transverse direction is arranged on the top surface, the top concave portion is located between the pivotal portion B and the mounting portion, the effective depth of the top concave portion is not less than 5 mm, and the effective width of the portion is not less than 7 cm; and

[0007] The elastic member is configured to be connected between the head and the arm in an elastic pre-deformed manner, so that the arm is subjected to a force in a direction toward the bottom surface thereof.

[0008] On the other hand, the present application provides a wiper, which includes a driver, a wiper blade and the aforementioned wiper arm, wherein the driver includes a drive shaft that outputs a rotational motion around a first axis when in operation, the fixed portion of the wiper arm is fixed to the drive shaft, and the wiper blade is mounted on the mounting portion.

[0009] On the other hand, the present application provides a vehicle, which includes a windshield, a protruding component and the aforementioned wiper, the wiper blade of the wiper contacts the wiped surface of the windshield, the protruding component protrudes from the wiped surface and has a spacing space between the protruding component and the wiper surface, the wiper arm is configured to pass through the spacing space at least part of the working time, and the protruding component is located at the top recess when passing through the spacing space.

[0010] According to the technical solution of the present application, a top concave portion is provided on the top surface of the arm portion of the wiper arm, and the effective depth of the top concave portion is not less than 5 mm and the effective width of the portion is not less than 7 cm. Therefore, a space can be made for the protruding part protruding from the wiped surface, and the protruding part will not collide with the protruding part during wiping operation, and the wiper arm can be hidden in the space below the protruding part when the operation stops. The wiper is easy to arrange and has a beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific implementation of the present application is described in detail below with reference to the accompanying drawings, wherein:

[0012] Figure 1 A partial enlarged schematic diagram showing a wiper portion of a vehicle according to a specific embodiment;

[0013] Figure 2 show Figure 1 A schematic diagram of the top surface of the wiper arm shown;

[0014] Figure 3 show Figure 1 A schematic diagram of the side of the wiper arm shown;

[0015] Figure 4 show Figure 1 A schematic diagram of the bottom surface of the wiper arm shown;

[0016] Figure 5 show Figure 1 A schematic diagram of a wiper arm shown in a service position, wherein the wiper blade has been detached from the wiper arm;

[0017] Figure 6 show Figure 5 a partial enlarged schematic diagram of the pivotal connection of the wiper arm shown in the service position; and

[0018] Figure 7 show Figure 4 A partial enlarged schematic diagram of the pivotal portion of the wiper arm shown;. DETAILED DESCRIPTION

[0019] See also Figures 1 to 7 As shown, a vehicle equipped with a wiper 100 according to a specific embodiment of the present application includes a windshield 2 and a protruding component 3. The wiper blade 18 of the wiper 100 contacts the wiped surface of the windshield 2 (usually the outer surface of the glass). The windshield 2 is, for example, a rear windshield of the vehicle, and the protruding component 3 is installed on the upper edge of the glass 2. For example, the protruding component 3 includes one or more of a camera, a spoiler, a shield, a lamp or a nozzle. The protruding component 3 protrudes from the wiped surface and has a spacing space (not numbered) between the protruding component 3 and the wiped surface.

[0020] The wiper 100 includes a driver 16, a wiper blade 18, and a wiper arm 1. The driver 16 includes a drive shaft 160, and when the driver 16 is working, the drive shaft 160 outputs a rotational motion around a first axis Y. The fixing portion 104 of the wiper arm 1 is fixed to the drive shaft 160, and the wiper arm 1 mounted on the drive shaft 160 passes through the spacing space at least part of the working time. For example, the drive shaft 160 is located in the spacing space, the wiper arm 1 is hidden in the spacing space when the wiper 100 stops working, and the wiper arm 1 passes through the spacing space when the wiper 100 performs a wiping operation.

[0021] The wiper arm 1 includes a head 10 and an arm 12. The head 10 includes a pivot portion 102 and a fixing portion 104 for fixing to a drive shaft 160. As shown in the figure, although the arm 12 is partially bent, it is longitudinally shaped as a whole. When working, the wiper arm 1 swings back and forth along the circumferential direction, and from the perspective of each part of the arm 12, it moves in the lateral direction (i.e., in a direction perpendicular to the longitudinal axis of the arm 12). The arm 12 includes a pivot portion 122 and a mounting portion 124 for mounting a wiper blade 18. The pivot portion 102 is pivotally connected to the pivot portion 122. For example, the pivot portion 122 is provided with a pin hole, and a pin 4 capable of pivoting in the pin hole is mounted on the pivot portion 102. The arm 12 can pivot around a second axis X relative to the head 10, and the second axis X is perpendicular to the first axis Y. The elastic member 14 is configured to be elastically pre-deformed and connected between the head 10 and the arm 12, so as to apply a force to the arm 12 in the direction of the bottom surface 128 thereof. For example, as shown in the figure, the elastic member 14 is a coil spring located below the wiper arm 1. The head 10 is provided with a first connection portion 105, and the arm 12 is provided with a second connection portion 125. The elastic member 14 straddles the pin 4 and its two ends are respectively hooked on the first connection portion 105 of the head 10 and the second connection portion 125 of the arm 12. The elastic member 14 is in an elastically stretched state, and the connecting line of the first connection portion 105 and the second connection portion 125 is located at the lower side of the pin 4. Therefore, the elastic member 14 applies a force to the arm 12 to make it move in the direction of the bottom surface 128. When the wiper 100 is working, the wiper blade 18 is tightly pressed against the glass. When the wiper blade 18 needs to be replaced, the arm 12 can be lifted from the glass 2, and the elastic member 14 will be elastically further extended.

[0022] Please refer to Figure 6 and Figure 7As shown in the partial enlarged view, the second pivotal connection 122 includes an opening (not numbered) that opens toward the end, and the pin shaft 4 can be installed into the second pivotal connection 122 from the opening. A stopper 123 is also provided near the second pivotal connection 122, and the stopper 123 is located at the edge of the aforementioned opening. When the arm 12 is lifted from the glass 2, the arm 12 moves toward the protruding component 3, and the stopper 123 is blocked by the first connection 105 of the head 10 before the arm 12 hits the protruding component 3. The stopper 123 limits the pivoting angle of the arm 12 relative to the head 10, preventing the arm 12 from hitting the protruding component 3.

[0023] The arm portion 12 further includes a top surface 126 and a bottom surface 128 facing each other. The bottom surface 128 is the side facing the surface to be wiped during operation, and the top surface 126 is the side facing away from the surface to be wiped during operation. A top concave portion 127 is provided on the top surface 126 and is penetrated in the transverse direction. The top concave portion 127 is located between the pivot portion 122 and the mounting portion 124. The effective depth of the top concave portion 127 is not less than 5 mm, and the effective width W1 of the portion is not less than 7 cm. For example, the effective width W1 is 7.5 cm, 8 cm, 8.5 cm, 9 cm, 9.5 cm, 10 cm, or 10.5 cm.

[0024] It should be noted that the depth refers to the distance inward relative to the surrounding surface. The effective depth and effective width in this application are used to evaluate the effectiveness of the recess in avoiding other components when the wiper 100 wipes the wiped surface of the glass 2. For example, the effective depth of the top recess 127 refers to the shallowest depth of the top recess 127 in the lateral direction of the arm 12 (in the direction parallel to the wiped surface and perpendicular to the longitudinal direction). If the top recess 127 is not consistent in depth in the lateral direction of the arm 12, for example, the lateral depth of the edge is 4 mm and the center is 8 mm, if the protrusion of the protruding component 3 (such as Figure 3 As shown in the figure, the protruding part 3 extends downward beyond the dimension of the dotted line above by more than 4 mm, for example, by 6 mm. Then, when the wiper 100 wipes the wiped surface of the glass 2, the protruding part 3 will not touch the lateral center of the top concave portion 127, but will touch the lateral edge of the top concave portion 127 and cannot work normally. Therefore, the top concave portion 127 can only avoid the protruding part 3 by 4 mm, and its effective depth is 4 mm.

[0025] In some specific embodiments, the closest distance d1 from the portion of the top concave portion 127 with an effective depth of not less than 5 mm to the second axis X is not less than 8 cm. For example, the closest distance d1 is 8 cm, 8.5 cm, 9 cm, 9.5 cm, 10 cm, 10.5 cm, 11 cm or 12 cm. The portion with an effective depth of not less than 5 mm is staggered from the connecting portion 125 in the longitudinal direction, so that the connecting portion 125 can be arranged deeper (i.e., located higher), thereby concealing the elastic member 14. When the wiper arm 1 passes through the spacing space, the protruding member 3 is located at the top concave portion 127.

[0026] The wiper blade 18 is mounted on the mounting portion 124. The wiper blade 18 includes an end cap 180 located at one end of the wiper blade 18 in the longitudinal direction. A bottom recess 129 is provided on the bottom surface 128 of the arm portion 12, which penetrates in the transverse direction. The effective depth of the bottom recess 129 is not less than 4 mm, and the effective width W2 of the portion is not less than 6 cm. For example, the effective width W2 is 6.5 cm, 7 cm, 7.5 cm, 8 cm, 8.5 cm, 9 cm, 9.5 cm or 10 cm. The closest distance d2 from the portion of the bottom recess 129 where the effective depth is not less than 4 mm to the second axis X is not greater than 11.5 cm. The closest distance d2 is 8 cm, 8.5 cm, 9 cm, 9.5 cm, 10 cm, 10.5 cm or 11 cm. The end cap 180 is located at the bottom recess 129. The end cap 180 is the most protruding part of the wiper blade 18 relative to the wiped surface of the glass 2 except for the joint. Since the bottom recess 129 is retreated there, the wiper arm 1 can be arranged closer to the glass 2, and the overall structure of the wiper 100 is compact.

[0027] The deepest position of the top concave portion 127 and the deepest position of the bottom concave portion 129 are staggered in the longitudinal direction of the arm portion 12. As shown in the figure, the deepest position of the top concave portion 127 is closer to the mounting portion 124 than the deepest position of the bottom concave portion 129. This design is conducive to maintaining the strength of the arm portion 12 and preventing the deepest positions of the top concave portion 127 and the bottom concave portion 129 from being too weak. The arm portion 12 is formed by an injection molding process, and the top concave portion 127 and the bottom concave portion 129 are integrally formed on the arm portion 12 by the injection molding process, which is easy to manufacture. The bottom surface 128 of the arm portion 12 is provided with a concave cavity (not numbered) extending in the longitudinal direction, and a reinforcing rib is provided in the concave cavity, and the reinforcing rib extends at least below the top concave portion 127.

[0028] Despite the above description, the scope of patent protection of this application is limited by the claims. Relative orientation terms are used in this application, and these orientations do not represent absolute physical positions. For example, up is relative to down, top is relative to bottom, and vertical is perpendicular to horizontal.

Claims

1. A wiper arm (1), characterized in that: It includes: A head (10) comprising a pivoting portion (102) and a fixing portion (104) for fixing to a drive shaft (160); An arm portion (12), comprising a second pivotal portion (122), a mounting portion (124) for mounting a wiper blade (18), a top surface (126) and a bottom surface (128), wherein the bottom surface (128) is a side surface facing a surface to be wiped during operation, the top surface (126) is opposite to the bottom surface (128), the first pivotal portion (102) is pivotally connected to the second pivotal portion (122), the arm portion (12) is longitudinally shaped, a top recess (127) is provided on the top surface (126) and extends through the top surface (126) in a transverse direction, the top recess (127) is located between the second pivotal portion (122) and the mounting portion (124), the effective depth of the top recess (127) is not less than 5 mm, and the effective width of the portion is not less than 7 cm; and An elastic member (14) is configured to be connected between the head (10) and the arm (12) in an elastically pre-deformed manner, so that the arm (12) is subjected to a force in a direction toward its bottom surface (128).

2. The wiper arm (1) according to claim 1, wherein: The drive shaft (160) is pivotable about a first axis (Y), and the arm (12) is pivotable about a second axis (X) relative to the head (10), wherein the second axis (X) is perpendicular to the first axis (Y).

3. The wiper arm (1) according to claim 2, wherein: The closest distance between the portion of the top recess (127) where the effective depth is not less than 5 millimeters and the second axis (X) is not less than 8 centimeters.

4. The wiper arm (1) according to claim 1, wherein: The top recess (127) is integrally formed on the arm (12) by an injection molding process, the bottom surface (128) of the arm (12) is provided with a concave cavity extending in the longitudinal direction, a reinforcing rib is provided in the concave cavity, and the reinforcing rib extends at least below the top recess (127).

5. A wiper (100), characterized in that: It comprises a driver (16), a wiper blade (18), and a wiper arm (1) according to any one of claims 1 to 4, wherein the driver (16) comprises a drive shaft (160) which outputs a rotational motion around a first axis (Y) during operation, the fixing portion (104) of the wiper arm (1) is fixed to the drive shaft (160), and the wiper blade (18) is mounted on the mounting portion (124).

6. The wiper (100) according to claim 5, wherein: A bottom concave portion (129) is provided on the bottom surface (128) and is passed through in the transverse direction. The effective depth of the bottom concave portion (129) is not less than 4 millimeters and the effective width of a portion thereof is not less than 6 centimeters.

7. The wiper (100) according to claim 6, wherein: The wiper blade (18) comprises an end cover (180) located at one end in the longitudinal direction of the wiper blade (18), and the end cover (180) is located at the bottom recess (129).

8. The wiper (100) according to claim 6, wherein: The deepest position of the top recess (127) and the deepest position of the bottom recess (129) are offset in the longitudinal direction of the arm (12), and the deepest position of the top recess (127) is closer to the mounting portion (124) than the deepest position of the bottom recess (129).

9. A vehicle, characterized in that It comprises a windshield (2), a protruding component (3), and a wiper (100) according to any one of claims 5 to 8, wherein the wiper blade (18) of the wiper (100) contacts the wiped surface of the windshield (2), the protruding component (3) protrudes from the wiped surface and has a spacing between the protruding component and the wiper surface, and the wiper arm (1) is configured to pass through the spacing during at least part of its working time, and when passing through the spacing, the protruding component (3) is located at the top recess (127).

10. The vehicle according to claim 9, wherein: The arm (12) is further provided with a stopper (123), and when the arm (12) is lifted and moves in a direction close to the protruding component (3), the stopper (123) is blocked by the head (10) before the arm (12) hits the protruding component (3); the drive shaft (160) is located in the interval space, and the protruding component (3) includes one or more of a camera, a spoiler, a shield, a lamp or a nozzle.

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