CN209852262U

CN209852262U - Vehicle and wiper arm thereof

Info

Publication number: CN209852262U
Application number: CN201920586111.3U
Authority: CN
Inventors: 刘立斌
Original assignee: Bosch Automotive Products Changsha Co Ltd
Current assignee: Bosch Automotive Products Changsha Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2019-12-27
Anticipated expiration: 2029-04-26

Abstract

The application provides a vehicle and a wiper arm thereof. Wherein, the head of the wiper arm comprises an A pivot part and a fixing part for fixing to the driving shaft. The arm of the wiper arm comprises a second pivot part, a mounting part for mounting the wiper blade, a top surface and a bottom surface, the bottom surface is a side surface facing to a wiped surface in work, the top surface is opposite to the bottom surface, the first pivot part is pivoted with the second pivot part, and a top concave part is arranged on the top surface. The elastic member is configured to be elastically pre-deformed to be connected between the head portion and the arm portion so that the arm portion receives a force in a direction toward the bottom surface thereof. The wiper is easy to arrange and has beautiful appearance.

Description

Vehicle and wiper arm thereof

Technical Field

The present application relates to a wiper device, and more particularly, to a wiper for a vehicle window and a wiper arm thereof.

Background

The wiper for the vehicle window includes a wiper arm driven by an electric driver to reciprocate and a wiper blade detachably mounted to an end of the wiper arm so as to be driven by the wiper arm to wipe the window to clean the window, thereby maintaining the clarity of the window. In order to maintain a sufficiently large clear area, the wiper blade must be sufficiently large. However, the wiper is too large in appearance, not beautiful, and not safe when exposed to glass. In addition, the position of the wiper is also generally a position suitable for disposing other components, for example, this position is also suitable for disposing a glass cleaning liquid ejection head, a camera, and the like. Wipers tend to obstruct the arrangement of these components.

SUMMERY OF THE UTILITY MODEL

This application mainly solves current wiper and arranges inconvenient problem.

In order to solve the above technical problem, the present application provides a wiper arm in one aspect, which includes:

a head including an a-pivot portion and a fixing portion for fixing to a driving shaft;

the arm part comprises a second pivot part, a mounting part for mounting the wiper blade, a top surface and a bottom surface, the bottom surface is the side surface facing the surface to be wiped when in work, the top surface is opposite to the bottom surface, the first pivot part is pivoted with the second pivot part, the arm part is lengthwise, a top concave part which penetrates along the transverse direction is arranged on the top surface, the top concave part is positioned between the second pivot part and the mounting part, and the effective width of the part, with the effective depth not less than 5 mm, of the top concave part is not less than 7 cm; and

an elastic member configured to be elastically pre-deformed to be connected between the head portion and the arm portion so as to subject the arm portion to a force in a direction toward a bottom surface thereof.

In another aspect, the present application provides a wiper including an actuator, a wiper blade, and the wiper arm, wherein the actuator includes a driving shaft that outputs a movement rotating around a first axis during operation, the fixing portion of the wiper arm is fixed to the driving shaft, and the wiper blade is mounted to the mounting portion.

In still another aspect, the present application provides a vehicle including a windshield, a protruding member, and the aforementioned wiper blade, the wiper blade of the wiper blade contacting a wiped surface of the windshield, the protruding member protruding from the wiped surface with a space therebetween, the wiper arm being configured to pass through the space at least part of an operating time, the protruding member being located at the top concave portion when passing through the space.

According to the technical scheme of the application, the top surface of the arm part of the wiper arm is provided with the top concave part, and the effective depth of the top concave part is not less than 5 mm, and the effective width of the top concave part is not less than 7 cm. Therefore, the projecting piece projecting from the wiping surface can be made free from collision with the projecting piece during wiping operation, and the wiper arm can be hidden in the space below the projecting piece during stoppage of operation. The wiper is easy to arrange and has beautiful appearance.

Drawings

Specific embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein:

FIG. 1 illustrates a partially enlarged schematic view of a wiper portion of a vehicle according to one embodiment;

FIG. 2 shows a schematic view of the top side of the wiper arm of FIG. 1;

FIG. 3 shows a schematic side view of the wiper arm of FIG. 1;

FIG. 4 shows a schematic view of the underside of the wiper arm of FIG. 1;

fig. 5 shows a view of the wiper arm of fig. 1 in a service position, in which the wiper blade has been detached from the wiper arm;

FIG. 6 shows a partially enlarged view of the pivoting part of the wiper arm shown in the service position in FIG. 5; and

FIG. 7 is a partially enlarged view of the pivotal connection of the wiper arm shown in FIG. 4; .

Detailed Description

Referring to fig. 1 to 7, a vehicle mounted with a wiper 100 according to an embodiment of the present application includes a windshield 2 and a protrusion 3. The wiper blade 18 of the wiper 100 contacts a wiped surface (typically, the outer surface of the glass) of the windshield 2. The windscreen 2 is, for example, the rear windscreen of a vehicle, and the projections 3 are mounted on the upper edge of the windscreen 2. For example, the tab 3 comprises one or more of a camera, spoiler, shroud, light or spray head. The projecting member 3 projects from the surface to be wiped with a space (not numbered) therebetween.

The wiper 100 includes an actuator 16, a wiper blade 18, and a wiper arm 1. The drive 16 includes a drive shaft 160, the drive shaft 160 outputting a rotational movement about the first axis Y when the drive 16 is in operation. The fixing portion 104 of the wiper arm 1 is fixed to the drive shaft 160, and the wiper arm 1 attached to the drive shaft 160 is operated at least partially over an interval space. For example, the drive shaft 160 is located in the space, the wiper arm 1 is hidden in the space when the wiper 100 stops operating, and the wiper arm 1 passes through the space when the wiper 100 performs a wiping operation.

The wiper arm 1 includes a head portion 10 and an arm portion 12. The head 10 comprises a first pivot 102 and a fixing 104 for fixing to a drive shaft 160. As shown, the arm portion 12 is partially bent, but is elongated as a whole. In operation, the wiper arm 1 is pivoted back and forth in the circumferential direction, as seen from the respective part of the arm portion 12, in the transverse direction (i.e. in a direction perpendicular to the longitudinal axis of the arm portion 12). The arm portion 12 includes a pivotal portion 122 and a mounting portion 124 for mounting the wiper blade 18. The first pivoting portion 102 pivots the second pivoting portion 122. For example, the second pivot portion 122 is provided with a pin hole, and the first pivot portion 102 is mounted with a pin 4 that can pivot in the pin hole. The arm 12 is pivotable relative to the head 10 about a second axis X, which is perpendicular to the first axis Y. The elastic member 14 is configured to be elastically pre-deformed to be connected between the head 10 and the arm 12, thereby applying a force to the arm 12 toward 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 engaging portion 105 and the arm 12 is provided with a second engaging portion 125. The elastic element 14 crosses the pin 4 and is hooked at its two ends to the first connecting portion 105 of the head 10 and the second connecting portion 125 of the arm 12, respectively. The elastic member 14 is in an elastically stretched state, and a connecting line between the first-contact portion 105 and the second-contact portion 125 is located below the pin 4, so that the elastic member 14 applies a force to the arm 12 to move the arm in a direction toward the bottom surface 128, and when the wiper 100 operates, 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 window 2 and the elastic member 14 will be elastically extended further.

Referring to fig. 6 and the enlarged partial view of fig. 7, the second pivot portion 122 includes an opening (not numbered) opened toward the end, and the pin 4 can be installed into the second pivot portion 122 through the opening. A stop part 123 is further disposed near the pivot part 122, and the stop part 123 is located at the edge of the opening. When the arm 12 is lifted from the glass 2, the arm 12 moves in a direction approaching the protruding member 3, the stopper 123 is stopped by the nail 105 of the head 10 before the arm 12 hits the protruding member 3, the stopper 123 restricts the pivoting angle of the arm 12 with respect to the head 10, and the arm 12 is prevented from hitting the protruding member 3.

The arm 12 also includes opposing top and bottom surfaces 126 and 128. The bottom surface 128 is the side that faces the surface to be wiped, and the top surface 126 is the side that faces away from the surface to be wiped. The top surface 126 is provided with a top recess 127 extending through in the lateral direction, and the top recess 127 is located between the second pivot portion 122 and the mounting portion 124. The effective depth of the top concave portion 127 is not less than the effective width W1 of the 5 mm portion is not less than 7 cm. For example, the effective width W1 is 7.5 centimeters, 8 centimeters, 8.5 centimeters, 9 centimeters, 9.5 centimeters, 10 centimeters, or 10.5 centimeters.

The depth is a distance inward from the peripheral surface, and the effective depth and the effective width are used in the present application to evaluate the effectiveness of the concave portion to avoid other members when the wiper 100 wipes the surface to be wiped of the glass 2. For example, the effective depth of the top concave portion 127 refers to the shallowest depth that the top concave portion 127 has in the lateral direction of the arm portion 12 (in the direction parallel to the surface to be wiped and perpendicular to the longitudinal direction). If the top concave portion 127 is not uniform in depth in the lateral direction of the arm portion 12, for example, the lateral edge depth is 4 mm and the center is 8 mm, and if the protruding degree of the protruding part 3 (as shown in fig. 3, the protruding part 3 protrudes downward beyond the size of the above dotted line) exceeds 4 mm, for example, 6 mm, when the wiper 100 wipes the wiped surface of the glass 2, the protruding part 3 will not hit the lateral center of the top concave portion 127, but the protruding part 3 will hit the lateral edge of the top concave portion 127 and will not work properly. Thus, the top recess 127 can only clear the protruding part 3 by up to 4 mm, with an effective depth of 4 mm.

In some embodiments, the closest distance d1 from the location where the effective depth of the top concave portion 127 is not less than 5 millimeters to the second axis X is not less than 8 centimeters. For example, the closest distance d1 is 8 centimeters, 8.5 centimeters, 9 centimeters, 9.5 centimeters, 10 centimeters, 10.5 centimeters, 11 centimeters, or 12 centimeters. The portion having the effective depth of not less than 5 mm is staggered from the second contact portion 125 in the longitudinal direction, so that the second contact portion 125 can be set relatively deep (i.e., positioned relatively upper), thereby mounting the elastic member 14 in a concealed manner. The projection 3 is located at the top recess 127 when the wiper arm 1 passes through the separation space.

The wiper blade 18 is attached to the attachment portion 124. The wiper blade 18 includes an end cap 180 at one end in the longitudinal direction of the wiper blade 18. A bottom recess 129 is provided on the bottom surface 128 of the arm portion 12 so as to extend in the lateral direction, and an effective depth of the bottom recess 129 is not less than an effective width W2 of a portion of 4 mm or more and not less than 6 cm or more. For example, the effective width W2 is 6.5 centimeters, 7 centimeters, 7.5 centimeters, 8 centimeters, 8.5 centimeters, 9 centimeters, 9.5 centimeters, or 10 centimeters. The nearest distance d2 from the location where the effective depth of the undercut 129 is no less than 4 mm to the second axis X is no 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. An end cap 180 is located at the bottom recess 129. The end cap 180 is a portion of the wiper blade 18 that protrudes most from the surface to be wiped of the windshield 2, except for the joint, and since the bottom recess 129 is recessed there, the wiper arm 1 can be disposed closer to the windshield 2, and the entire wiper 100 is compact.

The deepest position of the top recess 127 and the deepest position of the bottom recess 129 are shifted in the longitudinal direction of the arm portion 12. As shown, the deepest position of the top recess 127 is closer to the mounting portion 124 than the deepest position of the bottom recess 129. This design is beneficial to maintain the strength of the arm 12 and prevent the deepest position of the top and bottom recesses 127, 129 from being too weak. The arm portion 12 is formed by an injection molding process, and the top recess 127 and the bottom recess 129 are integrally formed on the arm portion 12 by an injection molding process, which facilitates manufacturing. The bottom surface 128 of the arm 12 is provided with a longitudinally extending cavity (not numbered) in which is provided a rib which extends at least below the roof recess 127.

Notwithstanding the foregoing, the scope of protection of the present application is defined by the claims. Relative positional terms are used in this application and these orientations do not represent absolute physical positions. For example, top to bottom, and vertical to the horizontal.

Claims

1. Wiper arm (1), characterized in that it comprises:

a head (10) comprising an first pivot (102) and a fixing (104) for fixing to a drive shaft (160);

an arm part (12) which comprises a second pivot part (122), a mounting part (124) for mounting the 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 when in operation, the top surface (126) is opposite to the bottom surface (128), the first pivot part (102) is pivoted with the second pivot part (122), the arm part (12) is in a longitudinal shape, a top concave part (127) which penetrates along the transverse direction is arranged on the top surface (126), the top concave part (127) is positioned between the second pivot part (122) and the mounting part (124), and the effective depth of the top concave part (127) is not less than 5 mm, and the effective width of the top concave part is not less than 7 cm; and

an elastic member (14) configured to be elastically pre-deformed connected between the head portion (10) and the arm portion (12) so as to subject the arm portion (12) to a force directed toward a bottom surface (128) thereof.

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

3. Wiper arm (1) according to claim 2, wherein the closest distance of the point of the top recess (127) having an effective depth of not less than 5 mm to the second axis (X) is not less than 8 cm.

4. Wiper arm (1) according to claim 1, wherein the top recess (127) is integrally formed on the arm part (12) by means of an injection moulding process, the bottom surface (128) of the arm part (12) being provided with a cavity extending in the longitudinal direction, in which cavity a reinforcement rib is provided, which extends at least below the top recess (127).

5. Wiper (100), characterized in that it comprises an actuator (16), a wiper blade (18) and a wiper arm (1) according to one of claims 1 to 4, the actuator (16) comprising a drive shaft (160) which, in operation, outputs a rotary motion about a first axis (Y), the fixing portion (104) of the wiper arm (1) being fixed to the drive shaft (160), the wiper blade (18) being mounted to the mounting portion (124).

6. The wiper (100) according to claim 5, wherein a bottom recess (129) is provided on the bottom surface (128) so as to extend therethrough in the lateral direction, and an effective depth of the bottom recess (129) is not less than an effective width of a 4 mm portion and not less than 6 cm.

7. A wiper (100) as set forth in claim 6 wherein said wiper blade (18) includes an end cap (180) at one end of said wiper blade (18) in the longitudinal direction, said end cap (180) being located at said undercut (129).

8. The wiper (100) according to claim 6, wherein a deepest position of the top recess (127) and a deepest position of the bottom recess (129) are offset in a longitudinal direction of the arm portion (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. Vehicle, characterized in that it comprises a windscreen (2), a protruding part (3) and a wiper (100) according to any one of claims 5 to 8, said wiper blade (18) of said wiper (100) contacting a wiped surface of said windscreen (2), said protruding part (3) protruding at said wiped surface with a spacing space therebetween, said wiper arm (1) being configured to pass through said spacing space at least part of the working time, said protruding part (3) being located at said top recess (127) when passing through said spacing space.

10. The vehicle according to claim 9, wherein the arm portion (12) is further provided with a stopper portion (123), and when the arm portion (12) is lifted to move in a direction approaching the protruding member (3), the stopper portion (123) is stopped by the head portion (10) before the arm portion (12) hits the protruding member (3); the drive shaft (160) is located in the space, and the protruding member (3) comprises one or more of a camera, a spoiler, a shield, a lamp or a spray head.