CN210133085U

CN210133085U - Wiper blade and wiper

Info

Publication number: CN210133085U
Application number: CN201920683266.9U
Authority: CN
Inventors: 张建; 裴闯闯
Original assignee: Taixiang Auto Parts (shenzhen) Co Ltd
Current assignee: Taixiang Auto Parts (shenzhen) Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-03-10
Anticipated expiration: 2029-05-14

Abstract

The utility model provides a doctor-bar and wiper. The doctor-bar includes wiping strip and connecting device, connecting device includes: the adapter comprises a base connected to the wiper strip and a first side wall and a second side wall which are opposite, wherein the first side wall and the second side wall are provided with openings corresponding in position; and a connector mounted to the adapter, the connector including first and second walls having mounting holes, the mounting holes and the apertures collectively defining a through-hole for connection with a pin of a first type of wiper arm; wherein the joint further includes a lock member located between the first wall and the second wall, the lock member being movable between a release position in which the lock member partially overlaps the through hole as viewed in an axial direction of the through hole and a lock position in which the lock member is staggered from the through hole.

Description

Wiper blade and wiper

Technical Field

The present application relates to a wiper blade and a wiper including the wiper arm.

Background

Wipers for vehicles remove rainwater, snow, fallen leaves, deposits, and the like from windshields, backlights, or headlights of certain models of vehicles. In the wiper, a motor drives a link mechanism, and a wiper arm drives a wiper blade to contact the surface of glass to reciprocate.

The wiper arm is detachably connected to the wiper blade. The wiper blade is a consumable and needs to be replaced after a certain period of use. The wiper arm attachment joints vary from wiper arm manufacturer to wiper arm manufacturer. It is desirable that the wiper blade be capable of being easily connected to a variety of different types of wiper arms.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve or at least alleviate the problem that exists among the prior art.

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

the adapter comprises a base connected to the wiper strip and opposite first and second side walls extending from the base, wherein the first and second side walls are provided with openings corresponding in position; and

a connector mounted to the adapter, the connector including a first wall adjacent the first sidewall and a second wall adjacent the second sidewall, the first and second walls having mounting holes corresponding in position to the apertures of the first and second sidewalls, the mounting holes and apertures collectively defining a through-hole for connection with a pin of a first type of wiper arm;

wherein the joint further includes a lock member located between the first wall and the second wall, the lock member being movable between a release position in which the lock member partially overlaps the through hole as viewed in an axial direction of the through hole and a lock position in which the lock member is staggered from the through hole.

Drawings

Fig. 1 shows a perspective view of a wiper blade according to an embodiment of the present application after the connection with a wiper arm of a first type has been completed;

FIG. 2 shows an exploded view of a blade according to an embodiment of the present application;

FIG. 3 shows a longitudinal cross-sectional view of a connector according to an embodiment of the present application;

fig. 4 to 6 show schematic views of a connection process between a wiper blade according to an embodiment of the present application and a wiper arm of a first type;

FIG. 7 shows a schematic view of a wiper blade according to an embodiment of the present application detached from a wiper arm of a first type; and

fig. 8 shows a perspective view of a wiper blade according to an embodiment of the present application after the completion of the connection with a second type of wiper arm.

Detailed Description

Referring to fig. 1 and 2, a perspective view of a wiper blade according to some embodiments of the present invention when assembled and an exploded state view of the wiper blade are shown, respectively. The wiper includes a wiper arm 1 and a wiper blade attached to the wiper arm 1. The blade comprises a wiper strip 3 and a connecting device 2, wherein the wiper strip 3 may for example comprise a backing support and a strip of glue for contacting the windscreen for wiping off water or the like from the windscreen. The connecting device 2 includes: an adapter 21, the adapter 21 comprises a base 211 connected to the wiper strip 3 and opposite first and

second side walls

212, 213 extending from the base 211, the first and

second side walls

212, 213 having correspondingly positioned

openings

215, 216; and a connecting member 22 mounted to the adapter 21, the connecting member 22 including 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 and

second walls

221, 222 having mounting holes 223,228 corresponding in position to the openings 215,216 of the first and

second side walls

212, 213, the mounting holes 223,228 and the openings 215,216 together defining a through hole for connection with the pin 11 (see fig. 4) of the first type of wiper arm 1. The connecting member 22 further includes a lock member 225 located between the first wall 221 and the second wall 222, the lock member 225 being movable between a release position in which the lock member 225 partially overlaps the through hole as viewed in the axial direction of the through hole, and a lock position in which the lock member 225 is offset from the through hole. The locking piece 225 according to the invention is configured for being blocked in the locked position at the constriction 112 of the pin 11 of the wiper arm 1 in order to connect the wiper blade to the wiper arm 1, and to be separated from the pin 11 when the locking piece 225 is in the released position in order to allow the pin 11 of the wiper arm 1 to be inserted into or extracted from the through hole.

In some embodiments, the locking member 225 may be a member that moves between a released position and a locked position, such as driven by a resilient device, such as a reed or spring. In other embodiments, the locking member 225 is formed of a material that is resilient in nature, such as plastic or rubber, such that the locking member 225 is resiliently deformed during movement from the locking position to the releasing position such that the locking member 225 tends to return to the locking position when in the releasing position. In a further embodiment, as shown more clearly in the longitudinal cross-sectional view of fig. 4, the lock member 225 can include a fixed first end 2251, a free second end 2253, and an intermediate portion 2252 between the first and

second ends

2251, 2253, wherein in the locked position, the intermediate portion 2252 of the lock member 225 partially overlaps the through-hole. It can be seen that the middle part 2252 partially overlaps the mounting hole 228, and that the position of the middle part 2252 may shift slightly when the pin 11 of the wiper arm passes through the through hole due to abutment against the pin 11, but still partially overlaps the mounting hole 228. In some embodiments, the lock member 225 extends from the first end 2251 to the second end 2253 in a generally upward and forward sloping direction such that the second end 2253 of the lock member 225 is positioned at the top of the connector 22, thereby making the second end 2253 of the lock member 225 easily accessible. Further, the second end 2253 of the lock 225 may have a toggle for toggling the lock 2253 from the locked position to the released position for easy detachment of the wiper blade from the wiper arm 1. Further, as can be seen in fig. 3, in the locked position, the middle 2252 of the locking member 225 substantially overlaps the edge of the through hole. Additionally, in the illustrated embodiment, the connector 22 includes a locking member 225 integrally formed, such as by injection molding, the locking member 225 being a portion of the connector 22, the locking member 225 being positioned between the first arm 221 and the second wall 222, and the first end 2251 thereof being coupled to one of the plurality of ribs between the first wall 221 and the second wall 222. As in some embodiments, the connecting member 22 may be made of, for example, a material having elasticity of its own, such as plastic or rubber, as a whole.

In some embodiments, the adapter 21 includes a post 214 connected between the first sidewall 212 and the second sidewall 213, the connector 22 includes a channel 224 for mating with the post 214, and the connector 22 is connected to the adapter 21 by the mating between the channel 224 and the post 214. As shown more clearly in fig. 3, in some embodiments, the channel 224 includes a first section 2241 that opens downwardly and a second section 2242 that is angled from the first section 2241, wherein the channel 224 further includes a bayonet having a width D that is less than the diameter of the post 214, which may be disposed, for example, between the first and

second sections

2241, 2242 of the channel 224. In some embodiments, the downward facing opening of the first section 2241 of the channel 224 may have two guide walls 2240 for guiding the channel 224 in cooperation with the post 214. In some embodiments, the first section 2241 of the tunnel 224 may be in a vertical direction or at an angle to the vertical direction. In some embodiments, the first section 2242 of the channel 224 has a profile that matches the post 214 to define the mounting position of the post 214, the post 214 being passed through a bayonet having a smaller diameter D than the post before the post 214 enters its mounting position, the post 214 entering the second section 2242 of the channel 224 by means of deformation of the connector 22 which is itself resilient, and the bayonet locking its position after the post is mounted in place. In some embodiments, the first sidewall 212 and the second sidewall 213 and the post 214 connected therebetween may be made of a metallic material. In some embodiments, the entire adapter includes a metal bracket and a plastic housing, the metal bracket being integrally formed and including a first sidewall 212 and a second sidewall 213 and a post 214 connected therebetween. In some embodiments, the top of the first sidewall 212 and the second sidewall 213 have different profiles, while the connector 22 has a tab 230 (see fig. 4) that can only mate with the top profile of one of the first sidewall 212 and the second sidewall 213 for preventing the connector 22 from being installed upside down.

With reference to fig. 4 to 6, it is described how a first type of wiper arm is mounted to a wiper blade according to an embodiment of the invention. As shown in fig. 4, the wiper arm 1 includes a pin 11 including a proximal end 113 closer to the main body of the wiper arm 1, a distal end 111 farthest from the main body of the wiper arm 1, and a constricted portion 112 between the proximal end 113 and the distal end 111. The constriction 112 has a smaller diameter than the proximal end 113 and the distal end 111, the distal end 111 of the pin 11 having a front portion 110 which is curved. When mounting, the pin 11 of the wiper arm 1 is inserted into the through-holes, specifically, as shown in fig. 4, the front portion 110 of the pin 11 is inserted into the first side wall 212 of the adaptor 21 and the first wall 221 of the connecting member 22, and then, as shown in fig. 5, the arc-shaped portion of the front portion 110 of the pin 11 is pushed out of the middle portion 2252 of the lock member 225 and the lock member 225 is elastically deformed so that the pin 11 can be continuously inserted forward, and finally, as shown in fig. 6, the front portion 110 of the pin 11 is passed through the second wall 222 of the connecting member 22 and the second side wall 213 of the adaptor 21, wherein the front portion 110 of the pin 11 is exposed, the distal end 111 of the pin 11 is fitted into the mounting hole of the second wall 222 of the connecting member and the opening hole of the second side wall 213 of the adaptor, the proximal end 113 of the pin 11 is fitted into the mounting hole of the first wall 221 of the connecting member 22 and the opening hole of the first side wall 212 of the adaptor 21, and in a position corresponding to the locking member 225, the locking member 225 tends to return to the locking position from the release position staggered from the through hole to allow the passage of the peg 11 due to elastic deformation, with the intermediate part 2252 thereof catching at the constricted part 112 of the peg 11, so that the peg 11 of the wiper arm 1 is connected to the wiper blade.

Referring to fig. 4, in some embodiments, the connector 22 has a front end 2202 and a rear end 2201, wherein the front end 2202 refers to the end closer to the root of the wiper arm when connected thereto and the rear end 2201 refers to the 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 axially protrude from the first side wall 212 and the second side wall 213 (in other words, the front end 2202 and the rear end 2201 of the connecting member 22 have a width larger than the interval between the first side wall 212 and the second side wall 213), so that when being mated with the wiper arm 1, the wiper arm 1 is in contact with the connecting member 22 made of, for example, an elastic material without being in direct contact with the first side wall 212 and the second side wall 213 of the adapter 21 made of, for example, a metal, and noise is generated due to friction.

With continued reference to fig. 7, an enlarged view of the locked condition is shown, illustrating the manner of disassembly. In the locked state, the wiper blade can be easily removed by merely toggling the second end 2253 of the locking member 225 in the direction indicated by the arrow D1 from the locking position to the release position and then pulling the pin 11 of the wiper arm 1 in the direction indicated by the arrow D2 for the purpose of changing the wiper blade or the like. In some embodiments, the dials at the second end 2253 of the locking member 225 may be provided with protrusions to increase friction and facilitate dialing operations.

With continued reference to fig. 8, a perspective view of a wiper blade according to the invention is shown when mounted with a wiper arm 10 of a second type. As seen in fig. 1 and 2, the top of the connector 22 may have a depressible tab 226 and the second wall 222 and the second wall 213 have a correspondingly positioned horizontally oriented slot 229,217 and/or the first wall 212 and the first wall 221 have a correspondingly positioned slot. The wiper blade is connected to the second type of wiper arm 10 by means of the projections 226 and the grooves. More specifically, the second type of wiper arm 10 may have a side 101 with an inwardly concave protrusion 102. The second type of wiper arm 10 can be mounted to the wiper blade in a horizontal orientation, wherein the protrusions 102 move along the slots of the second side wall 213 until the projections 226 of the connecting member 22 fit into the openings in the top of the second type of wiper arm 10, thereby fixedly connecting the wiper blade to the second type of wiper arm 10. As shown more clearly in fig. 3, the projection 226 is located on the front side (right side in fig. 3) of the lock 225, the front side of the projection 226 is connected to the coupling 22 by a resilient cantilever 2261, the rear side of the projection 226 has a support 2262, and as can be seen in fig. 3, the projection 226 and the support 2262 have a height greater than the lock 225. Wherein the support table 226 can give a certain supporting force to the second type of wiper arm 10 to prevent the wiper arm 10 from floating and generating noise.

In addition, the present invention also provides a wiper including the wiper blade and the wiper arm according to various embodiments, such as the first type or the second type of the wiper arm.

While the present disclosure has been described with reference to various specific embodiments thereof, it will be understood that the scope of the present invention is not limited to the illustrated embodiments and is defined by the appended claims, and modifications or variations that do not depart from the spirit of the invention are intended to be included within the scope of the 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 a wiper strip (3) and first and second opposite side walls (212, 213) extending from the base (211), the first and second side walls (212, 213) having correspondingly positioned openings (215,216) therein; and

a connector (22) mounted to the adapter (21), the connector (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 and second walls (221, 222) having mounting holes (223,228) corresponding in position to the apertures (215,216) of the first and second side walls (212, 213), the mounting holes (223,228) and the apertures (215,216) together defining a through hole for connection with a pin (11) of a first type of wiper arm (1);

wherein the connecting piece (22) further comprises a locking piece (225) between the first wall (221) and the second wall (222), the locking piece (225) being movable between a release position and a locking position, viewed in the axial direction of the through-hole, in which locking piece (225) partially overlaps the through-hole, in which release position the locking piece (225) is offset from the through-hole.

2. Wiper blade according to claim 1, characterized in that the blocking element (225) consists of a material which is elastic in itself, the blocking element (225) being elastically deformed during the movement from the blocking position to the release position, so that in the release position the blocking element (225) tends to return to the blocking position.

3. Doctor blade according to claim 2, characterised in that the locking piece (225) comprises a fixed first end (2251), a free second end (2253) and an intermediate part (2252) between the first and second ends (2251, 2253), in the locking position the intermediate part (2252) of the locking piece (225) partly overlapping the edge of the through hole.

4. The wiper blade as recited in claim 3, characterized in that the lock (225) extends between the first wall (221) and the second wall (222) from the first end (2251) to the second end (2253) substantially in a direction from bottom to top, the second end (2253) of the lock (225) is located at the top of the connecting piece (22), and the second end (2253) has a toggle for toggling the lock (225) from the locked position to the released position.

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

6. Doctor blade as claimed in claim 5, characterized in that the adapter (21) comprises a post (214) connected between the first and second side walls (212, 213), the connecting piece (22) comprising a channel (224) for cooperation with the post (214), the connecting piece (22) being connected to the adapter (21) by cooperation between the channel (224) and the post (214), the channel (224) comprising a first section (2241) opening downwards and a second section (2242) angled to the first section (2241), wherein the channel (224) comprises a bayonet with a width smaller than the diameter of the post.

7. Doctor blade according to claim 1, characterized in that the top of the front end of the connecting piece (22) has a depressible projection (226) and that the first side wall (212) and the first wall (221) and/or the second wall (222) and the second side wall (213) have a correspondingly positioned horizontally extending slot, through which projection (226) and slot the doctor blade is connected with a second type of doctor arm (10).

8. Doctor blade according to claim 7, characterized in that the front side of the cam (226) is connected to the connecting piece (22) by a resilient cantilever arm, the rear side of the cam (226) having a support table, the support table (2262) having a higher height than the locking piece (225).

9. Doctor blade according to claim 1, characterized in that the connecting piece (22) has a front end (2202) and a rear end (2201), the front end (2202) and the rear end (2201) of the connecting piece (22) axially protruding from the first side wall (212) and the second side wall (213) when the connecting piece (22) is mounted to the adapter (21).

10. A wiper, comprising:

a wiper blade as defined in any one of claims 1-9; and

a wiper arm (1,10) connected to the wiper blade.