Wiper joint element and wiper comprising such a joint element

Abstract

Wiper and wiper blade joining element comprising such a joining element. The present invention relates to a wiper and wiper blade joining element comprising such a joining element to resolve the inconvenient assembly of the existing wiper blade joining element and the high assembly cost. The wiper blade joining element comprises: a body (1), the upper surface (1b) of which has a first pivoting joining portion (144), and the two edges of the lower surface (1a) are each provided with a foot (11), a recessed groove (12) being formed between each foot (11) and said lower surface (1a), said lower surface (1a) being provided with two cavity holes (14); two snap-fit ​​joining blocks (2), respectively placed in said two cavity holes (14). The present invention also proposes a wiper blade having such a joining element. Figure for the abstract: FIG. 4

Description

Title of the invention: Windshield wiper joining element and windshield wiper comprising such a joining element. Technical field

[0001] The present invention relates to a wiper joining element and a wiper having such a joining element, in particular a wiper joining element connecting a wiper to a fitting and a wiper having such a joining element. TECHNICAL CONTEXT

[0002] With reference to [Fig. 1], which is the case of Patent Application "Windshield Wiper" No. CN115431925A published by the applicant, said windshield wiper 9 comprises: a connecting element 91, a set of springs 92 and an adhesive strip 93, said adhesive strip 93 is combined with said set of springs 92, said connecting element 91 is provided with two side panels 911 and four connecting blocks 912, said spring group 92 is provided with four first positioning holes 921, said four connecting blocks 912 are combined with said first four positioning holes 921 by hot riveting or ultrasonic fusion and so on, so that said two side panels 911 and said four connecting blocks 912 can more precisely position said spring group 92, said connecting element 91 can be connected to a rotating wiper arm 95 of a vehicle via a fitting 94,When said adhesive strip 93 is against the windshield of the vehicle, it is possible to use said rotating wiper arm to cause a movement of said wiper assembly relative to said surface of said glass panel in order to clean the glass with said adhesive strip 93.

[0003] As said four connecting blocks 912 are combined with said four first positioning holes 921 by hot riveting or ultrasonic melting, therefore the melting of said four connecting blocks 912 which is necessary and time-consuming during the manufacture of said wiper results in a slow and inconvenient production speed as well as an increase in manufacturing costs.

[0004] It is therefore necessary to improve the existing windshield wiper. DISCLOSURE OF THE INVENTION

[0005] In order to solve the above problems, the present invention aims to provide a wiper joining element and a wiper comprising such a joining element, which can be conveniently assembled with said spring group.

[0006] A secondary objective of the present invention is to provide a joining element wiper and a wiper including the connecting element, which can be easily assembled, in order to reduce manufacturing costs.

[0007] Directional terms or similar terms used in the present invention such as "front", "back", "left", "right", "top", "bottom", "inside", "outside" and "lateral" are used only to explain a direction by referring to the figures, such directional terms or similar terms are used only to help illustrate and understand embodiments of the present invention, instead of limiting the present invention.

[0008] The use of the quantifier "a" or "an" for the elements and components used in the present invention is made only for convenience and to give the usual meaning of the scope of the present invention; in the present invention, these terms shall be interpreted as including one or at least one, and a single concept also includes cases including a plurality, unless it is obvious that the intention is otherwise.

[0009] The terms "join", "combine" or "assemble" and other similar terms used in the present invention are mainly used to designate configurations in which, after connection, the elements can be separated without damaging them, or after connection, the elements cannot be separated; these are choices of the person skilled in the art depending on the material of the components to be joined or the needs of the assembly.

[0010] The present invention relates to a wiper blade connecting element comprising: a body having a lower surface and an upper surface in a vertical direction, said upper surface having a first pivoting connecting portion, said lower surface having two groups of opposing edges, said two groups of opposing edges being respectively in a first horizontal direction and a second horizontal direction, the two edges in the first horizontal direction each being provided with a foot, and the cross-section of said foot is L-shaped, so that a recess groove is formed between each foot in said first horizontal direction and said lower surface, said lower surface being provided with two cavity holes, said two cavity holes being located on either side of a median line parallel to said second horizontal direction and penetrating towards said vertical direction Z,said two cavity holes, each comprising a first cavity hole and a second cavity hole which are in communication, and between said first cavity hole and said second cavity hole, there is a portion of insulation projecting towards said second horizontal direction, said portion of insulation not being connected to said lower surface; and two snap-fit ​​joining blocks placed respectively in said two cavity holes, said, two snap-fit ​​joining blocks each having a lower surface and an upper surface, said two snap-fit ​​joining blocks each having at least one convex body and one snap-fit ​​body on said upper surface, said at least one convex body being used to be embedded in said first cavity hole and said snap-fit ​​body being used to be embedded in said second cavity hole, and said two snap-fit ​​joining blocks each being further provided with a notch, said notch being used for embedding with said portion of insulation.

[0011] The present invention also relates to a windshield wiper comprising: a windshield wiper joining element as described above; a group of springs having at least one spring and a slot, said at least one spring having at least one first positioning hole, said at least one first positioning hole corresponding to said first cavity hole for allowing passage of each convex body of said two snap-in blocks, said slot being for the embedding of an adhesive strip; a connector, having two opposing side walls and a base portion connecting said two side walls to form a pivoting joining space, said pivoting joining space being for housing said body of the windshield wiper joining element, said two side walls each being provided with a second pivoting joining portion which is connected with said first pivoting joining portion;and a rotating arm, having two panels, a portion of housing being formed between said two panels so that said fitting is threaded and disposed in said portion of housing, so that said fitting is combined with said rotating arm.

[0012] The wiper joining element of the present invention and the wiper having said joining element can form a wiper joining element by said body and said two snap-fit ​​joining blocks, so that said wiper joining element can be combined with said spring group and thus fixed in a quick and convenient manner, also having a function favorable to reducing manufacturing costs.

[0013] According to a particular feature of the invention, the lower surface of the body is provided with a concave groove track, the groove track being in communication with the two opposite edges in the second horizontal direction. Thus, the groove track can also be used for embedding a portion of an adhesive strip of the spring assembly.

[0014] According to a particular feature of the invention, said cavity holes are located on either side of said groove track. Thus, when said snap-fit ​​connecting blocks are combined in said two cavity holes, said body can provide a balanced driving force to said spring group, so that said band The combined adhesive and spring group allow the windshield to be cleaned in a back-and-forth motion.

[0015] According to a particular feature of the invention, said first pivoting joint portion consists of two shafts projecting towards said first horizontal direction, and the two shafts of said first pivoting joint portion are positioned along the same axis. Thus, said first pivoting joint portion can be combined with a fitting in a pivoting manner, which has the effect of rotating said body and said fitting relative to each other.

[0016] According to a particular feature of the invention, said two snap-fit ​​junction blocks are of the same design. Thus, said snap-fit ​​junction blocks can fit into said two cavity holes at the same time, which facilitates its use.

[0017] According to a particular feature of the invention, said snap body is provided with a hook portion, the lower edge of said hook portion being held at a distance from said upper surface, and when said snap body is inserted into said second cavity hole, said distance corresponds to said recessed groove. Thus, when at least one spring of said spring group is threaded and arranged in said recessed groove, the lower edge of said hook portion can engage with the top of said at least one spring.

[0018] According to a particular feature of the invention, when said two snap-fit ​​joining blocks are each inserted into said two cavity holes, the lower surface of said two snap-fit ​​joining blocks does not protrude or retract inward from the lower surface of each foot. Thus, when said two snap-fit ​​joining blocks and said spring assembly are combined, the surface of said two snap-fit ​​joining blocks does not affect the function of the joining of said adhesive strip.

[0019] According to a particular feature of the invention, each ratchet body of said two ratchet junction blocks is abutted respectively against two outer sides of said at least one spring, such that said two ratchet bodies are embedded in said second cavity hole of said body. Thus, each hook body can provide a lateral clamping force on the two outer sides of said at least one spring.

[0020] A second objective of the present invention is to provide a windshield wiper assembly whose fitting has better resistance, so that the fitting can be resistant to long-term use.

[0021] A third objective of the present invention is to provide a fitting for a wiper assembly, such a fitting allows a wiper to be connected to a rotating arm and the wiper to be easily removed from the rotating arm.

[0022] It should be noted that the directional indication terms or similar terms such as "front", "back", "left", "right", "top", "bottom", "inside", "outside" and "lateral" are used only to explain a direction by referring to the figures, such directional indication terms or similar terms are used only to help illustrate and understand the embodiments of the present invention, instead of limiting the present invention.

[0023] Advantageously, the wiper assembly of the present invention comprises: a wiper, comprising a body, the body having at its lower part a wiper blade, the body having at its upper part a connecting base, a first connecting portion being provided on each of two opposite sides of the connecting base; and a fitting, which has a hollow interior, a connecting groove being provided in the hollow interior, the connecting groove being configured so that the connecting base is partially housed therein, the fitting having two second connecting portions, the two second connecting portions being connected to the first two connecting portions, the fitting having in its interior a positioning hole and an engagement element, and the engagement element having an engagement portion.

[0024] Advantageously, the wiper assembly fitting of the present invention has a hollow interior, the hollow interior has a connecting groove, the fitting has two second connecting portions, the fitting further has inside it a positioning hole and a snap-in element, and the snap-in element has a snap-in portion.

[0025] Consequently, the wiper assembly and its fitting according to the present invention allow the fitting to have a complete appearance because the engagement element is hidden inside a wall of the hollow fitting housing, which allows the fitting to have a better appearance and prevents the engagement element from becoming brittle due to prolonged exposure to the sun and prevents the junction portion between the engagement element and the fitting from breaking, thus extending the service life of the fitting and the wiper.

[0026] Advantageously, when the connector is attached to the wiper arm, a gap exists between the lower part of the connector and the body. Consequently, the user can remove the engagement element from this gap, which facilitates wiper arm replacement.

[0027] Advantageously, the joining groove is formed by at least two walls extending into the hollow interior of the fitting, and the two second joining portions are located on two opposite walls. Consequently, the material for making the fitting can be saved, and the joining groove is given deformable elasticity, which facilitates the replacement of the wiper blade.

[0028] Advantageously, the second two junction portions are through holes penetrating through both walls, and the first two junction portions are columns projecting from the surface of the junction base. Consequently, the first two junction portions and the second two junction portions facilitate convenient joining and separation.

[0029] Advantageously, one of the housing walls forming the hollow fitting has an inclined wall positioned on the engagement element. Consequently, the user can remove the engagement element from this inclined wall, which facilitates the replacement of the wiper blade.

[0030] Advantageously, the positioning hole inside the fitting is configured to insert an open end of a rotating arm, and the engagement portion is engaged in a positioning groove of the rotating arm. Consequently, the fitting and the rotating arm provide a solid connection.

[0031] Advantageously, the rotating arm includes a guide portion; when the open end of the rotating arm is inserted into the positioning hole, the guide portion is used to push the engagement portion backward. Consequently, the connector and the wiper facilitate connection to the rotating arm. DESCRIPTION OF THE FIGURES

[0032] [Fig-1] is a view of an existing windshield wiper;

[0033] [Fig.2] is a three-dimensional exploded perspective view of a preferred embodiment of the wiper junction element of the present invention;

[0034] [Fig.3] is a side view in section of a preferred embodiment of the wiper joining element of the present invention;

[0035] [Fig.4] is a three-dimensional exploded perspective view of a preferred embodiment of the windshield wiper of the present invention;

[0036] [Fig.5] is a combined bottom view of a preferred embodiment of the windshield wiper of the present invention;

[0037] [Fig.6] is a cross-sectional view along line AA on [Fig.5].

[0038] In the figures, the reference figures are as follows:

[0039] 1: Body

[0040] the: Lower surface

[0041] 1b: Upper surface

[0042] 11: Foot

[0043] 12: Recessed groove

[0044] 13: Groove

[0045] 14: Cavity hole

[0046] 141: First cavity hole

[0047] 142: Second cavity hole

[0048] 143: Insulation portion

[0049] 144: First portion of pivoting joint

[0050] 2: Snap-on block

[0051] 2a: Lower surface

[0052] 2b: Upper surface

[0053] 21: Convex body

[0054] 22: Snap-on body

[0055] 23: Notch

[0056] 24: Portion of hook

[0057] 3: Spring group

[0058] 31: Spring

[0059] 32: First positioning hole

[0060] 33: Adhesive strip

[0061] 34: Pressurized lid

[0062] 35: Sheath

[0063] 4: Connection

[0064] 41: Side wall

[0065] 42: Base portion

[0066] 43: Pivoting junction space

[0067] 44: Second portion of pivoting joint

[0068] 5: Rotating arm

[0069] 51: Wall panel

[0070] 52: Portion of housing

[0071] 53:Limitation hole

[0072] 54: Portion of stop

[0073] C: Median line

[0074] G: Slot

[0075] P: Space

[0076] X: First horizontal direction

[0077] Y: Second horizontal direction

[0078] Z: Vertical direction

[0079] [Existing]

[0080] 9: Windshield wiper

[0081] 91: Joining element

[0082] 911: Side panel

[0083] 912: Junction block

[0084] 92: Spring assembly

[0085] 921: First positioning hole

[0086] 93: Adhesive strip

[0087] 94: Connection

[0088] 95: Rotating arm. DETAILED DESCRIPTION OF THE PRESENT INVENTION

[0089] The above and other objects, features and advantages of the present invention will become clearer upon reading the description below of preferred embodiments with reference to the figures.

[0090] With reference to Figures 2 and 3, which illustrate a preferred embodiment of a wiper junction element of the present invention, the wiper junction element comprises a body 1 and two snap-fit ​​junction blocks 2, said two snap-fit ​​junction blocks 2 can each be combined with two cavity holes 14 at the bottom of said body respectively.

[0091] Said body 1 has a lower surface la and an upper surface 1b in the vertical direction Z, said lower surface la has two groups of opposite edges, said two groups of opposite edges are in a first horizontal direction X and a second horizontal direction Y respectively, of which the two edges in the first horizontal direction X are each provided with a foot 11, and the cross-section of said foot 11 is L-shaped, so that a recess 12 is formed between each foot 11 in said first horizontal direction X and said lower surface la, said recess 12 is used for a group of springs 3 to be threaded and recessed in said second horizontal direction Y.Preferably, said lower surface is also provided with a concave groove track 13, said groove track 13 is in communication with said two opposite edges in said second horizontal direction Y, said groove track 13 can also be used for embedding a part of an adhesive strip 33 of said spring group 3.

[0092] Said lower surface la of said body 1 is further provided with two cavity holes 14, said two cavity holes 14 are situated on either side of a median line C parallel to the second horizontal direction Y and penetrate towards the vertical direction Z, said two cavity holes 14 may be of the same design, said two cavity holes 14 each comprise a first cavity hole 141 and a second cavity hole 142 which are in communication, and between said first cavity hole 141 and said second cavity hole 142, there is a portion of insulation 143 projecting towards the second horizontal direction Y (we will discuss this below), said portion of insulation 143 is not connected to said lower surface la, so that said recess groove 12 extends to the space between said portion of insulation 143 and said lower surface. Preferably, said two cavity holes 14 are located respectively on either side of said groove track 13.

[0093] Said upper surface 1b of said body 1 has a first pivoting joint portion 144, said first pivoting joint portion 144 may be a shaft or a hole, the present invention has no limitation in this respect, and in the present embodiment, said first pivoting joint portion 144 may be two shafts projecting towards said first horizontal direction X and the two shafts of said first pivoting joint portion 144 are placed in the same axis, and said first pivoting joint portion 144 may be used to be combined with a fitting 4.

[0094] Said two snap-fit ​​junction blocks 2 are respectively placed in said two cavity holes 14 of said body 1, said two snap-fit ​​junction blocks 2 may be of the same design, said two snap-fit ​​junction blocks 2 each have a lower surface 2a and an upper surface 2b, said two snap-fit ​​junction blocks 2 each have at least one convex body 21 and one snap-fit ​​body 22 on said upper surface 2b, said at least one convex body 21 may be embedded in said first cavity hole 141 of said body 1, said snap-fit ​​body 22 may be embedded in said second cavity hole 142 of said body 1.The two snap-fit ​​joining blocks 2 are each further provided with a notch 23, said notch 23 can be fitted with said insulation portion 143, so that when said two snap-fit ​​joining blocks 2 are respectively fitted into said cavity holes 14 of said body 1, said two snap-fit ​​joining blocks 2 do not move towards said first horizontal direction X relative to said body 1. Said snap-fit ​​body 22 is provided with a hook portion 24, the lower edge of said hook portion 24 is held at a space P from said upper surface 2b, and when said snap-fit ​​body 22 is fitted into said second cavity holes 142 of said body 1, said space P corresponds to said recess groove 12.Preferably, said two snap-fit ​​junction blocks 2 are respectively embedded in said two cavity holes 14, the lower surface 2a of said two snap-fit ​​junction blocks 2 does not protrude or retract into the lower surface of each foot 11.

[0095] With reference to Figures 4, 5 and 6, a body 1 mentioned above and two snap-fit ​​junction blocks 2 can be combined with a group of springs 3 of a wiper and said body 1 can be connected with a rotating arm 5 of a vehicle via a fitting 4.

[0096] Said spring group 3 is provided with at least one spring 31 and a slot G, said at least one spring 31 is provided with at least one first positioning hole 32, said at least one first positioning hole 32 is used to allow passage of said at least one convex body 21, said slot G of said spring group 3 is for the embedding of an adhesive strip 33, said spring group 3 may also include a pressurized cover 34 and two sleeves 35, said pressurized cover 34 may encompass said at least one spring 31, said two sleeves 35 may be combined respectively at two ends of said at least one spring 31, so that it is possible to improve the beauty of said spring group 3, and further improve the stability of the junction of said two springs 31.

[0097] With reference to Figures 4, 5 and 6, during the joining of said body 1, said snap-fit ​​joining blocks 2 and said spring group 3 are combined, said at least one spring 31 of said spring group 3 is threaded from one end towards said second horizontal direction Y of said body 1 and disposed in said recess groove 12, such that each first positioning hole 32 corresponds to said first cavity hole 141, each at least one convex body 21 of said snap-fit ​​joining blocks 2 can be recessed into said corresponding positioning hole 32 and said first cavity hole 141, each snap-fit ​​body 22 of said snap-fit ​​joining blocks 2 can be abutted against two outer sides of said at least one spring 31, in order to form a lateral clamping force on both sides, and such that said two bodies The snap-fit ​​parts 22 are respectively embedded in said second cavity hole 142 of said body 1,said notch 23 can be embedded in said portion of insulation 143 of said body 1, the lower edge of each hook body 24 of said snap-fit ​​junction blocks 2 can engage with the upper surface of said at least one spring 31, so that said spring group 3, said body 1 and said two snap-fit ​​junction blocks 2 can be firmly combined.

[0098] Said body 1, said two snap-fit ​​connecting blocks 2 and said combined spring group 3, can be connected to a fitting 4 and combined with a rotating arm 5 of a vehicle, to form a pair of windshield wipers for cleaning the vehicle's windshield. The body 1 is connected to a fitting 4, said fitting 4 is provided with two opposing side walls 41 and a base portion 42 connecting said two side walls 41, a pivoting connecting space 43 is formed between said two side walls 41 and said base portion 42, said pivoting connecting space 43 is for housing said body 1.Said two side walls 41 are each provided with a second pivoting joint portion 44, said two second pivoting joint portions 44 may be a through hole, said two first pivoting joint portions 144 may be connected with said two second pivoting joint portions 44 in a pivoting manner, thus said body 1 may pivot relative to said fitting 4.

[0099] Furthermore, said fitting 4 can be combined with a rotating arm 5, said rotating arm 5 has two wall panels 51, a housing portion 52 is formed between said two wall panels 51, said fitting 4 can be threaded and arranged in said housing portion 52, and said rotating arm 5 can be provided with a limiting hole 53, said fitting 4 is provided with a limiting block 45, said limiting block 45 of said fitting 4 can be engaged in said limiting hole 53, said two wall panels 51 of said rotating arm 5 are each provided with a stopping portion 54, so that the edge of said side panels 41 of said fitting 41 can abut against said stopping portion 54, so that said fitting 4 can be combined with said rotating arm 5. Thus, it is possible to prevent said fitting 4 from falling from said rotating arm 5. When said rotating arm 5 is driven, said rotating arm 5 can connect said spring group 3 via said fitting 4, so that said spring group 3 can perform a reciprocating movement, of so that said adhesive strip 33 can clean the windshield.

[0100] In conclusion, the wiper junction element of the present invention and the wiper with such a junction element can be combined into a wiper junction element by said body and said two snap-fit ​​junction blocks, so that said wiper junction element can be quickly and conveniently fixed in junction with said spring group, and has the effect of reducing the manufacturing cost.

[0101] Although the present invention has been disclosed through the preferred embodiments above, the present invention is not limited to them, and all modifications and improvements to the above embodiments proposed by any person competent in the field of the present invention shall be included within the scope of the present invention.

Claims

Claims

1. A wiper connecting element, characterized in that it comprises: a body (1), having a lower surface (1a) and an upper surface (1b) in a vertical direction (Z), said upper surface (1b) having a first pivoting connecting portion (144), said lower surface (1a) having two groups of opposite edges, said two groups of opposite edges being respectively in a first horizontal direction (X) and a second horizontal direction (Y), the two edges of which in the first horizontal direction (X) are each provided with a foot (11), and the cross-section of said foot (11) is L-shaped, so that an embedding groove (12) is formed between each foot (11) in said first horizontal direction (X) and said lower surface (1a), said lower surface (1a) being provided with two cavity holes (14),said two cavity holes (14) being located on either side of a center line (C) parallel to said second horizontal direction (Y) and penetrating toward said vertical direction (Z), said two cavity holes (14) each comprising a first cavity hole (141) and a second cavity hole (142) which are in communication, and between said first cavity hole (141) and said second cavity hole (142), there is an insulation portion (143) projecting toward said second horizontal direction (Y), said insulation portion (143) not being connected to said lower surface (la); and two snap-on terminal blocks (2), respectively placed in said two cavity holes (14), said two snap-on terminal blocks (2) each having a lower surface (2a) and an upper surface (2b),said two snap-on terminal blocks (2b) each having at least one convex body (21) and one snap-on body (22) on said upper surface (2b), said at least one convex body (22) being used for being embedded in said first cavity hole (141) and said snap-on body (22) being used for being embedded in said second cavity hole (142), and said two snap-on terminal blocks (2) each being further provided with a notch (23), said notch (23) being used for embedding with said insulation portion (143).,

2. A wiper connecting element according to claim 1, characterized in that, said lower surface (la) of said body (1) is provided with a concave groove track (13), said groove track (13) is in communication with said two opposite edges in said second horizontal direction (Y).

3. Windshield wiper connecting element according to claim 2, characterized in that said cavity holes (14) are located on either side of said groove track (13).

4. A wiper connecting element according to claim 1, characterized in that said first pivoting connecting portion (144) consists of two shafts projecting towards said first horizontal direction (X), and the two shafts of said first pivoting connecting portion (144) are placed along the same axis.

5. Windshield wiper connecting element according to claim 1, characterized in that said two snap-on junction blocks (2) are of the same design.

6. A wiper connecting element according to claim 1, characterized in that, said snap body (22) is provided with a hook portion (24), the lower edge of said hook portion (24) is held at a gap (P) from said upper surface (2b), and when said snap body (22) is embedded in said second cavity hole (142), said gap (P) corresponds to said embedding groove (12).

7. A wiper junction element according to claim 1, characterized in that when said two snap-on junction blocks (2) are each embedded in said two cavity holes (14), the lower surface (2a) of said two snap-on junction blocks (2) does not protrude or retract inwardly from the lower surface of each leg (11).

8. A windshield wiper, characterized in that it comprises: a windshield wiper connecting element according to any one of claims 1 to 7; a spring group (3), having at least one spring (31) and a slot (G), said at least one spring (31) having at least one first positioning hole (32), said at least one first positioning hole (32) corresponding to said first cavity hole (141) for passing each convex body (21) of said two snap-on blocks (2), said slot (G) being for embedding an adhesive strip (33); a connector (4), having two opposite side walls (41) and a base portion (42) connecting said two side walls (41) to form a pivoting joining space (43), said pivoting joining space (43) being for housing said body (1) of the wiper connecting element, said two side walls (41) each being provided with a second pivoting connecting portion (44) which is connected with said first pivoting connecting portion (144); and a rotary arm (5), having two panels (51), a housing portion (52) being formed between said two panels (51) for said connector (4) to be threaded and arranged in said housing portion (52), so that said connector (4) is combined with said rotary arm (5).

9. A windshield wiper according to claim 8, characterized in that each snap body (22) of said two snap junction blocks (2) abuts respectively against two outer sides of said at least one spring (31), so that said two snap bodies (22) are embedded in said second cavity hole (142) of said body (1).

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