Wiper blades and wipers

Abstract

The present invention provides a wiper blade and a windshield wiper. The wiper blade includes a wiper strip and a connecting device, wherein the connecting device includes: an adapter, wherein the adapter includes a base connected to the wiper strip and a first side wall and a second side wall opposite to each other, wherein the first side wall and the second side wall have openings corresponding to positions; and a connecting member installed to the adapter, wherein the connecting member includes a first wall and a second wall, wherein the first wall and the second wall have mounting holes, wherein the mounting holes and the openings together define a through hole for connecting with a pin of a first type of wiper arm; wherein the connecting member also includes a locking member located between the first wall and the second wall, wherein the locking member can move between a release position and a locking position, wherein when viewed from the axial direction of the through hole, in the locking position, the locking member partially overlaps with the through hole, and in the releasing position, the locking member is staggered with the through hole.

Description

Technical Field

[0001] The present application relates to a wiper blade and a windshield wiper comprising the wiper arm. Background Art

[0002] The wipers used in vehicles remove rain, snow, fallen leaves, sediment, etc. from the windshield, rear window glass or headlights of some models. In the wiper, the motor drives the connecting rod mechanism, and the wiper arm drives the wiper blade to contact the glass surface and make a reciprocating motion.

[0003] The scraper arm is detachably connected to the scraper blade. The scraper blade is a consumable and needs to be replaced after a certain period of use. For the scraper arm, different wiper manufacturers have different scraper arm connection joints. It is expected that the scraper blade can be easily connected to a variety of different types of scraper arms. Summary of the invention

[0004] The purpose of the present invention is to solve or at least alleviate the problems existing in the prior art.

[0005] According to some aspects, there is provided a wiper blade comprising a wiper strip and a connecting device, the connecting device comprising:

[0006] An adapter, the adapter comprising a base connected to the wiper strip and a first side wall and a second side wall extending from the base, the first side wall and the second side wall having openings at corresponding positions; and

[0007] a connector mounted to the adapter, the connector comprising a first wall adjacent to the first side wall and a second wall adjacent to the second side wall, the first wall and the second wall having mounting holes corresponding to the positions of the openings of the first side wall and the second side wall, the mounting holes and the openings jointly defining a through hole for connecting with a pin of a first type of scraper arm;

[0008] In which, the connecting member also includes a locking member located between the first wall and the second wall, and the locking member can move between a release position and a locking position. When viewed from the axial direction of the through hole, in the locking position, the locking member partially overlaps with the through hole, and in the release position, the locking member is offset from the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A perspective view showing a scraper blade according to an embodiment of the present application after being connected to a scraper arm of the first type;

[0010] Figure 2 An exploded view of a scraper blade according to an embodiment of the present application is shown;

[0011] Figure 3 A longitudinal sectional view of a connector according to an embodiment of the present application is shown;

[0012] Figures 4 to 6 A schematic diagram showing a connection process between a scraper blade and a first type of scraper arm according to an embodiment of the present application is shown;

[0013] Figure 7 A schematic diagram showing a scraper blade according to an embodiment of the present application being detached from a scraper arm of a first type; and

[0014] Figure 8 A stereoscopic view is shown after the wiper blade according to an embodiment of the present application is connected to the second type of wiper arm. DETAILED DESCRIPTION

[0015] refer to Figure 1 and Figure 2 , respectively showing a stereoscopic view of the wiper when assembled and a schematic view of the wiper blade in the exploded state according to some embodiments of the present invention. The wiper comprises a wiper arm 1 and a wiper blade connected to the wiper arm 1. The wiper blade comprises a wiper strip 3 and a connecting device 2, wherein the wiper strip 3 may comprise, for example, a backing bracket and an adhesive strip, the adhesive strip being used to contact with a windshield to scrape water on the windshield, etc. The connecting device 2 comprises: an adapter 21, the adapter 21 comprises a base 211 connected to the wiper strip 3 and a first side wall 212 and a second side wall 213 extending from the base 211, the first side wall 212 and the second side wall 213 having openings 215 and 216 corresponding in position; and a connecting member 22 mounted to the adapter 21, the connecting member 22 comprises a first wall 221 adjacent to the first side wall 212 and a second wall 222 adjacent to the second side wall 213, the first wall 221 and the second wall 222 having mounting holes 223 and 228 corresponding in position to the openings 215 and 216 of the first side wall 212 and the second side wall 213, the mounting holes 223 and 228 and the openings 215 and 216 together defining a pin 11 for connecting to the first type of wiper arm 1 (see Figure 4 ) is connected to the wiper arm 1. The connecting member 22 also includes a locking member 225 located between the first wall 221 and the second wall 222. The locking member 225 can move between a release position and a locking position. When viewed from the axial direction of the through hole, in the locking position, the locking member 225 partially overlaps with the through hole, and in the release position, the locking member 225 is staggered from the through hole. The locking member 225 according to the present invention is configured to be stuck at the contraction portion 112 of the pin 11 of the wiper arm 1 in the locking position so as to connect the wiper blade to the wiper arm 1, and when the locking member 225 is in the release position, it is separated from the pin 11 to allow the pin 11 of the wiper arm 1 to be inserted into or withdrawn from the through hole.

[0016] In some embodiments, the locking member 225 may be a member that moves between the release position and the locking position based on an elastic device such as a leaf spring or a spring. In other embodiments, the locking member 225 is made of a material that has elasticity, such as plastic or rubber, so that the locking member 225 is elastically deformed during the movement from the locking position to the release position, so that the locking member 225 tends to return to the locking position when in the release position. In further embodiments, such as Figure 4 As more clearly shown in the longitudinal cross-sectional view of FIG. 2 , the locking member 225 may include a fixed first end 2251, a free second end 2253 and a middle portion 2252 between the first end 2251 and the second end 2253, wherein the middle portion 2252 of the locking member 225 partially overlaps the through hole in the locked position. As shown in the figure, it can be seen that the middle portion 2252 partially overlaps the mounting hole 228, and when the pin 11 of the scraper arm passes through the through hole, the position of the middle portion 2252 may be slightly moved due to the abutment against the pin 11, but still partially overlaps the mounting hole 228. In some embodiments, the locking member 225 extends from the first end 2251 to the second end 2253 in a direction generally inclined upward and forward, so that the second end 2253 of the locking member 225 is located at the top of the connecting member 22, thereby making the second end 2253 of the locking member 225 easy to access. Furthermore, the second end 2253 of the locking member 225 may have a shifting block for shifting the locking member 2253 from the locking position to the releasing position, so as to easily realize the removal of the scraper blade from the scraper arm 1. Figure 3 It can be seen that in the locked position, the middle portion 2252 of the locking member 225 substantially overlaps with the edge of the through hole. In addition, in the illustrated embodiment, the connector 22 includes the locking member 225, such as being integrally formed by injection molding, and the locking member 225 is a part of the connector 22. The locking member 225 is located between the first arm 221 and the second wall 222, and its first end 2251 is connected to one of the multiple connecting ribs between the first wall 221 and the second wall 222. In some embodiments, the connector 22 can be, for example, made entirely of a material that has elasticity, such as plastic or rubber.

[0017] In some embodiments, the adapter 21 includes a column 214 connected between the first side wall 212 and the second side wall 213, and the connector 22 includes a channel 224 for matching with the column 214. The connector 22 is connected to the adapter 21 through the matching between the channel 224 and the column 214. Figure 3As shown more clearly, in some embodiments, the channel 224 includes a first section 2241 opening downward and a second section 2242 at an angle to the first section 2241, wherein the channel 224 also includes a bayonet having a width D less than the diameter of the column 214, which can be, for example, disposed between the first section 2241 and the second section 2242 of the channel 224. In some embodiments, the downward opening of the first section 2241 of the channel 224 can have guide walls 2240 on both sides for guiding the cooperation between the channel 224 and the column 214. In some embodiments, the first section 2241 of the channel 224 can be along the vertical direction or at a certain angle to the vertical direction. In some embodiments, the first section 2242 of the channel 224 has a profile that matches the column 214 to define the installation position of the column 214. Before the column 214 enters its installation position, it needs to pass through a bayonet having a smaller diameter D than the column. The column 214 enters the second section 2242 of the channel 224 by means of the deformation of the connector 22, which has its own elasticity, and the bayonet locks its position after the column is installed in place. In some embodiments, the first side wall 212 and the second side wall 213 and the column 214 connected therebetween can be made of metal material. In some embodiments, the entire adapter includes a metal bracket and a plastic shell. The metal bracket is integrally formed and includes the first side wall 212 and the second side wall 213 and the column 214 connected therebetween. In some embodiments, the tops of the first side wall 212 and the second side wall 213 have different profiles, and the connector 22 has a protrusion 230 that can only cooperate with the top profile of one of the first side wall 212 and the second side wall 213 (see Figure 4 ) is used to prevent the connector 22 from being installed reversely.

[0018] refer to Figures 4 to 6 The following describes how the first type of scraper arm is mounted to the scraper blade according to an embodiment of the present invention. Figure 4 As shown, the scraper arm 1 includes a pin 11, which includes a proximal end 113 closer to the main body of the scraper arm 1, a distal end 111 farthest from the main body of the scraper arm 1, and a contraction portion 112 between the proximal end 113 and the distal end 111. The contraction portion 112 has a smaller diameter than the proximal end 113 and the distal end 111, and the distal end 111 of the pin 11 has an arc-shaped front portion 110. When installing, the pin 11 of the scraper arm 1 is inserted into the through hole, specifically, as shown in FIG. Figure 4 As shown, the front portion 110 of the pin 11 is inserted into the first side wall 212 of the adapter 21 and the first wall 221 of the connector 22, and then, as shown in FIG. Figure 5 As shown, the arc-shaped portion of the front portion 110 of the pin 11 pushes the middle portion 2252 of the locking member 225 and the locking member 225 will be elastically deformed, so that the pin 11 can continue to be inserted forward. Finally, as shown in FIG. Figure 6As shown, the front portion 110 of the pin 11 passes through the second wall 222 of the connecting member 22 and the second side wall 213 of the adapter 21, wherein the front portion 110 of the pin 11 is exposed, the distal end 111 of the pin 11 is fitted in the mounting hole of the second wall 222 of the connecting member and the opening of the second side wall 213 of the adapter, the proximal end 113 of the pin 11 is fitted in the mounting hole of the first wall 221 of the connecting member 22 and the opening of the first side wall 212 of the adapter 21, the contraction portion 112 of the pin 11 is located between the first wall 221 and the second wall 222 of the connecting member, and at a position corresponding to the locking member 225, the locking member 225 tends to return to the locking position from the release position offset from the through hole to allow the pin 11 to pass through due to elastic deformation, and the middle portion 2252 is stuck at the contraction portion 112 of the pin 11, so that the pin 11 of the scraper arm 1 is connected to the scraper blade.

[0019] refer to Figure 4 In some embodiments, the connecting member 22 has a front end 2202 and a rear end 2201, wherein the front end 2202 refers to an end closer to the root of the wiper arm when connected to the wiper arm, and the rear end 2201 refers to an end farther from the root of the wiper arm. When the connecting member 22 is mounted to the adapter 21, the front end 2202 and the rear end 2201 of the connecting member 22 protrude from the first side wall 212 and the second side wall 213 in the axial direction (in other words, the front end 2202 and the rear end 2201 of the connecting member 22 have a width greater than the spacing between the first side wall 212 and the second side wall 213), so that when the connecting member 22 is matched with the wiper arm 1, the wiper arm 1 contacts the connecting member 22 made of an elastic material, but does not directly contact the first side wall 212 and the second side wall 213 of the adapter 21 made of metal, thereby generating noise due to friction.

[0020] Continue to refer Figure 7 , shows an enlarged view in the locked state, and illustrates the disassembly method. In the locked state, it is only necessary to move the second end 2253 of the locking member 225 in the direction indicated by the arrow D1, and move it from the locked position to the released position, and then pull out the pin 11 of the scraper arm 1 in the direction indicated by the arrow D2 to facilitate the removal of the scraper blade, so as to replace the scraper blade, etc. In some embodiments, some protrusions can be provided on the shifting block of the second end 2253 of the locking member 225 to increase the friction force, so that the shifting operation is more convenient.

[0021] Continue to refer Figure 8 , which shows a perspective view of the installation of the scraper blade according to the present invention and the scraper arm 10 of the second type. Figure 1 and Figure 2It can be seen that the top of the connecting member 22 may have a push-down protrusion 226, and the second wall 222 and the second side wall 213 have correspondingly positioned grooves 229, 217 in the horizontal direction and / or the first side wall 212 and the first wall 221 have correspondingly positioned grooves. The scraper blade is connected to the second type of scraper arm 10 via the protrusion 226 and the groove. More specifically, the second type of scraper arm 10 may have a side 101 having an inwardly recessed protrusion 102. The second type of scraper arm 10 may be mounted to the scraper blade in a horizontal direction, wherein the protrusion 102 moves along the groove of the second side wall 213 until the protrusion 226 of the connecting member 22 fits into the opening at the top of the second type of scraper arm 10, thereby fixing the scraper blade to the second type of scraper arm 10. Figure 3 As shown more clearly, the projection 226 is located on the front side of the locking member 225 ( Figure 3 The front side of the protrusion 226 is connected to the connecting member 22 through an elastic cantilever 2261, and the rear side of the protrusion 226 has a support platform 2262. Figure 3 As can be seen in the figure, the protrusion 226 and the support platform 2262 have a height higher than the locking member 225. The support platform 226 can give a certain supporting force to the second type of scraper arm 10 to prevent the scraper arm 10 from swimming and generating noise.

[0022] In addition, the present invention further provides a wiper, which includes the wiper blade and the wiper arm according to various embodiments, such as the first type or the second type of wiper arm.

[0023] The present disclosure introduces various specific embodiments of the present invention. It should be understood that the scope of the present invention is not limited to the illustrated embodiments but is defined by the claims. Modifications or variations that do not depart from the concept of the present invention should also be included in the scope of the present invention.

Claims

1. A wiper blade comprising a wiper strip (3) and a connecting device, characterized in that: The connecting device comprises: An adapter (21), the adapter (21) comprising a base (211) connected to the wiper strip (3) and a first side wall (212) and a second side wall (213) extending from the base (211) and opposite to each other, the first side wall (212) and the second side wall (213) having openings (215, 216) at corresponding positions; and a connecting member (22) mounted to the adapter (21), the connecting member (22) comprising a first wall (221) adjacent to the first side wall (212) and a second wall (222) adjacent to the second side wall (213), the first wall (221) and the second wall (222) being mounted between the first side wall (212) and the second side wall (213), the first wall (221) and the second wall (222) having mounting holes (223, 228) corresponding to the positions of the openings (215, 216) of the first side wall (212) and the second side wall (213), the mounting holes (223, 228) and the openings (215, 216) jointly defining a through hole for connecting to a pin (11) of a first type of scraper arm (1); The connecting member (22) further comprises a locking member (225) located between the first wall (221) and the second wall (222); the locking member (225) extends from a first end (2251) to a second end (2253) between the first wall (221) and the second wall (222) approximately in a bottom-to-top direction; the second end (2253) of the locking member (225) is located at the top of the connecting member (22); the locking member (225) is movable between a release position and a locking position; when viewed from the axial direction of the through hole, in the locking position, the locking member (225) partially overlaps with the through hole; and in the releasing position, the locking member (225) is staggered with the through hole; The top of the front end of the connecting member (22) has a pushable protrusion (226), and the first side wall (212) and the first wall (221) as well as the second wall (222) and the second side wall (213) have horizontally extending grooves at corresponding positions, and the scraper blade is connected to the second type scraper arm (10) via the protrusion (226) and the groove; Wherein, when the scraper blade is connected to the second type of scraper arm (10), the second type of scraper arm (10) is mounted to the scraper blade in a horizontal direction, wherein the inwardly concave protrusion (102) of the side surface (101) of the second type of scraper arm (10) moves along the groove until the protrusion (226) of the connecting member (22) fits into the opening at the top of the second type of scraper arm (10).

2. The scraper blade according to claim 1, characterized in that The locking member (225) is made of a material that has elasticity itself, and the locking member (225) is elastically deformed during the movement from the locking position to the releasing position, so that at the releasing position, the locking member (225) tends to return to the locking position.

3. The scraper blade according to claim 2, characterized in that: The locking member (225) includes a fixed first end (2251), a free second end (2253) and a middle portion (2252) between the first end (2251) and the second end (2253). In the locked position, the middle portion (2252) of the locking member (225) partially overlaps with the edge of the through hole.

4. The scraper blade according to claim 3, characterized in that The second end (2253) has a shift block for shifting the locking member (225) from a locking position to a releasing position.

5. The scraper blade according to claim 2, characterized in that The connecting piece (22) is integrally formed.

6. The scraper blade according to claim 5, characterized in that The adapter (21) includes a column (214) connected between the first side wall (212) and the second side wall (213), the connecting piece (22) includes a channel (224) for cooperating with the column (214), the connecting piece (22) is connected to the adapter (21) through the cooperation between the channel (224) and the column (214), the channel (224) includes a first section (2241) opening downward and a second section (2242) at an angle to the first section (2241), wherein the channel (224) includes a bayonet having a width smaller than the diameter of the column.

7. The scraper blade according to claim 1, characterized in that: The front side of the protrusion (226) is connected to the connecting member (22) via an elastic cantilever, and the rear side of the protrusion (226) has a support platform, and the support platform (2262) has a height higher than that of the locking member (225).

8. The scraper blade according to claim 1, characterized in that: The connecting member (22) has a front end (2202) and a rear end (2201), and when the connecting member (22) is installed on the adapter (21), the front end (2202) and the rear end (2201) of the connecting member (22) protrude axially from the first side wall (212) and the second side wall (213).

9. A wiper, characterized in that: include: The scraper blade according to any one of claims 1 to 8; as well as A scraper arm (1, 10) is connected to the scraper blade.

Images