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EP-4556322-B1 - WINDSHIELD WIPER ASSEMBLY STRUCTURE

EP4556322B1EP 4556322 B1EP4556322 B1EP 4556322B1EP-4556322-B1

Inventors

  • CHANG, CHE-WEI
  • YANG, CHENG-KAI
  • Chang, Chuan-Chih

Dates

Publication Date
20260506
Application Date
20231114

Claims (8)

  1. A windshield wiper assembly structure (1), comprising: a wiper holder (10), comprising a main frame (11) and a pair of outer buckling brackets (12) connected to the main frame (11), each outer buckling bracket (12) comprising a through groove (121) and an opening (122) communicating to the through groove (121); a wiper blade (20), extending along the main frame (11), comprising a penetrating portion (21) and a scraping portion (22) connected to the penetrating portion (21), wherein the penetrating portion (21) is inserted in multiple through grooves (121) of the pair of outer buckling brackets (12), the penetrating portion (21) comprises a central column (211) and two first slots (212) defined on two sides of the central column (211), and the scraping portion (22) protrudes from the opening (122); a pair of elastic sheets (30), extending along the wiper blade (20) and respectively inserted in the first slots (212) on the two sides of the central column (211), wherein one side of each elastic sheet (30) is attached to the central column (211) and another side of the each elastic sheet (30) abuts against the pair of outer buckling brackets (12); and a pair of clamping seats (40) fixed on two ends of the wiper blade (20), each clamping seat (40) comprising a pair of clipping plates (41, 41') connected with each other and clamped by the pair of outer buckling brackets (12); characterized in that the pair of clipping plates (41, 41') respectively comprises a protruding thorn (411, 411') protruding horizontally and facing each other, wherein the pair of clipping plates (41, 41') is inserted in the first slots (212) on the two sides of the central column (211) from one end of the wiper blade (20) to abut against the pair of the elastic sheets (30) and the protruding thorn (411, 411') of each clipping plate (41, 41') is inserted in the central column (211), and wherein two snapping holes (31) are respectively defined on two ends of the each elastic sheet on a side away from the central column (211), each clipping plate (41, 41') comprising a blocking portion (412) engaged in each snapping hole (31).
  2. The windshield wiper assembly structure (1) according to claim 1, wherein the blocking portion (412) comprises a tab extending obliquely from a surface of each clipping plate (41, 41') toward each elastic sheet (30).
  3. The windshield wiper assembly structure (1) according to claim 1 or 2, wherein a notch (410) is defined on a side of each clipping plate (41), and each outer buckling bracket (12) is fastened to the notch (410) of each clipping plate (41).
  4. The windshield wiper assembly structure (1) according to claim 3, wherein each clipping plate (41) comprises a hook (414) located on an end thereof and adjacent to the notch (410).
  5. The windshield wiper assembly structure (1) according to any of the preceding claims, wherein a recess (413) is defined on one side of one of multiple protruding thorns (411,411') of one of the clipping plates (41,41') and adjacent to another one of the protruding thorns (411,411') of another one of the clipping plates (41,41').
  6. The windshield wiper assembly structure (1) according to any of the preceding claims, wherein each clamping seat (40) further comprises a baffle (42) and a pair of side plates (43) all perpendicularly connected to the pair of clipping plates (41, 41'), the baffle (42) is connected to one end of the pair of clipping plates (41, 41'), and the pair of side plates (43) are located on two outer sides of the pair of clipping plates (41, 41') opposite to each other.
  7. The windshield wiper assembly structure (1) according to claim 6, wherein the each clamping seat (40) further comprises a pair of buckling plates (44) arranged perpendicularly to the baffle (42); a buckling slot (430) is defined on each side plate (43); and one end of each buckling plate (44) is connected to the baffle (42), and another end of the each buckling plate (44) is clamped in the buckling slot (430).
  8. The windshield wiper assembly structure (1) according to claim 7, wherein the penetrating portion (21) comprises two second slots (213) respectively defined on two sides of the central column (211), the second slot (213) is located between the first slot (212) and the scraping portion (22), and each buckling plate (44) is located in the second slot (213).

Description

BACKGROUND OF THE DISCLOSURE Technical Field The technical field relates to a windshield wiper, and more particularly relates to a windshield wiper assembly structure. Description of Related Art A windshield wiper mainly includes a snap-clip adapter, a wiper frame, metal elastic sheets and a rubber blade, etc. The snap-clip adapter is installed on the wiper frame to be combined with a wiper arm. Additionally, the metal elastic sheets and the rubber blade are combined on the wiper frame, and the rubber blade is clamped and fixed by the metal elastic sheets and the wiper frame. Accordingly, the wiper arm is combines with the snap-clip adapter and drives the rubber blade to clean the windshield. However, the clamping and fixing method of the aforementioned rubber blade is not firm. Thus, the rubber blade is easily to be disengaged or be pulled out from the side. Besides, the wiper blade may be deteriorated, deformed, or displaced after being used for a period of time, and that may cause the rubber blade to be not able to attach the windshield firmly, thereby affecting the cleaning effectiveness of the windshield wiper. US 3 153 254 A discloses a windshield wiper assembly structure, but does not disclose that he pair of clipping plates respectively comprises a protruding thorn protruding horizontally and facing each other, that the pair of clipping plates is inserted in the first slots on the two sides of the central column from one end of the wiper blade to abut against the pair of the elastic sheets, and that the protruding thorn of each clipping plate is inserted in the central column. SUMMARY OF THE DISCLOSURE One object of this disclosure is to provide a windshield wiper assembly structure to prevent disengagement or displacement of the wiper blade, thereby providing a firm and solid windshield wiper assembly structure. This problem is solved by a windshield wiper assembly structure as claimed in claim 1. Further advantageous embodiments are the subject-matter of the dependent claims. According to the disclosure there is provided a windshield wiper assembly structure comprising a wiper holder, a wiper blade, a pair of elastic sheets and a pair of clamping seats. The wiper holder includes a main frame and a pair of outer buckling brackets connected to the main frame. Each outer buckling bracket includes a through groove and an opening communicating to the through groove. The wiper blade extends along the main frame and includes a penetrating portion and a scraping portion connected to the penetrating portion. The penetrating portion is inserted in the through grooves of the pair of outer buckling brackets. The penetrating portion includes a central column, and two first slots are respectively defined on two sides of the central column. The scraping portion protrudes from the opening. The pair of elastic sheets extend along the wiper blade and are respectively inserted in the first slots on two sides of the central column. One side of each elastic sheet is attached to the central column, and another side of the elastic sheet abuts against the pair of outer buckling brackets. The pair of clamping seats are fixed on two ends of the wiper blade. Each clamping seat includes a pair of clipping plates connected with each other and is clamped by the pair of the outer buckling brackets. According to the invention, the pair of clipping plates respectively comprises a protruding thorn protruding in a horizontal direction and facing each other, wherein the pair of clipping plates is inserted in the first slots on two sides of the central column from one end of the wiper blade to abut against the pair of the elastic sheets, and the protruding thorn of each clipping plate is inserted in the central column, wherein two snapping holes are respectively defined on two ends of each elastic sheet on a side away from the central column thereof, and each clipping plate comprises a blocking portion to be engaged in the snapping hole. In one embodiment of this disclosure, the blocking portion includes a tab extending obliquely from a surface of each clipping plate toward the elastic sheet. In one embodiment of this disclosure, a notch is defined on a side of each clipping plate, and each outer buckling bracket is fastened to the notch of each clipping plate. In one embodiment of this disclosure, each clipping plate includes a hook located on an end thereof and adjacent to the notch. In one embodiment of this disclosure, the clipping plate has elastic restoring force. The hook is elastically pressed by the outer buckling bracket, and the clipping plate is positioned on the notch through elastic restoring force when the hook passes through the outer buckling brackets. In one embodiment of this disclosure, a recess is defined on one side of the protruding thorn of the clipping plate and adjacent to the protruding thorn of another clipping plate. In one embodiment of this disclosure, the clamping seat further includes a baffle and a p