Structure of wiper end plug

Abstract

The application relates to a structure of a wiper end plug, which comprises a flow guide sleeve, a pair of elastic sheets, a wiper strip and an end plug. The elastic sheets are arranged in the flow guide sleeve, each of the elastic sheets comprises a metal sheet body, a buckle hole and a clamping groove, the buckle hole is arranged in the metal sheet body, and the clamping groove is arranged at the end of the metal sheet body. The wiper strip is arranged between the elastic sheets and extends along the elastic sheets. The end plug is arranged at the end of the flow guide sleeve and the elastic sheets and exposes the wiper strip, and comprises a shell, a clamping column and a buckle block. The clamping column is arranged in the shell and located at one end of the shell, and the buckle block is arranged on both sides of the shell. The elastic sheets are combined with the flow guide sleeve and the wiper strip and arranged in the end plug, the clamping column and the clamping groove are clamped with each other, and each buckle block is buckled into the buckle hole of the elastic sheet, so that the end plug is fixed at the end of the flow guide sleeve and the elastic sheets, and the convenience during assembly is improved.

Description

Technical Field

[0001] This application relates to a windshield wiper, and more particularly to an assembly structure of a wiper end plug. Background Technology

[0002] A typical windshield wiper structure mainly includes a mounting bracket, a metal spring, a deflector, and a wiper blade. The mounting bracket connects the metal spring and the wiper blade, and the deflector is installed on top of the mounting bracket and connected to the wiper drive arm. The wiper drive arm then moves the wiper blade to clean the car's windshield.

[0003] Furthermore, the connection between the deflector and the metal spring in the aforementioned wiper structure is not sealed, and rainwater can easily seep in from both sides of the deflector and wet the metal spring, causing it to corrode and shorten its lifespan. To address this, end plugs are currently installed at the ends of the metal spring to cover both ends of the deflector. However, most existing end plugs are attached to the ends of the metal spring and wiper blade using a nesting method. However, this nesting method can lead to the end plug falling off after prolonged use due to the aging of the wiper blade.

[0004] In view of this, the applicant has devoted itself to studying the aforementioned prior art and applying theoretical principles to try to solve the above-mentioned problems, which has become the target of the applicant's development. Summary of the Invention

[0005] This application provides an assembly structure for a wiper end plug, wherein the clamping post of the end plug and the slot of the spring clip are mutually engaged, and the buckle of the end plug will snap into the buckle hole of the spring clip, so that the end plug is securely fixed to the end of the guide sleeve and the spring clip.

[0006] To achieve the above objectives, this application provides an assembly structure for a wiper end plug, including a guide sleeve, a pair of springs, a wiper blade, and an end plug. The springs are inserted into the guide sleeve, each spring including a metal body, a snap hole, and a slot. The snap hole is located on the metal body, and the slot is located at the end of the metal body. The wiper blade passes between the springs and extends along them. The end plug is fitted onto the end of the guide sleeve and the springs, exposing the wiper blade. The end plug includes a housing, a clamping post, and fastening blocks. The clamping post is located in the housing and at one end of the housing, and the fastening blocks are respectively located on both sides of the housing and behind the clamping post. The springs are combined with the guide sleeve and the wiper blade and inserted into the end plug. The clamping post and the slot interlock, and each fastening block is correspondingly fastened into the snap hole of the spring.

[0007] Compared to conventional wiper end plugs, the present application's assembly structure features a spring clip with a snap-fit ​​hole and a slot, while the end plug is correspondingly equipped with a clamping post and a snap-fit ​​block. When the spring clip is attached to the guide sleeve and wiper blade, and the spring clip abuts against the end plug, the clamping post of the end plug engages with the slot of the spring clip to restrict and position the front-to-back direction of the end plug; on the other hand, the snap-fit ​​block of the end plug snaps into the snap-fit ​​hole of the spring clip to restrict and position the vertical direction of the end plug. Accordingly, the end plug can be reliably fixed to the end of the guide sleeve and the spring clip, increasing the convenience of assembly. Attached Figure Description

[0008] Figure 1 This is a three-dimensional appearance diagram of the assembly structure of the wiper end plug of this application.

[0009] Figure 2 This is a three-dimensional exploded view of the assembly structure of the wiper end plug of this application.

[0010] Figures 3 to 6 This is a combined sectional view of the wiper end plug assembly structure of this application.

[0011] Figure 7 This is another embodiment of the end plug in this application.

[0012] Figure 8 This is another embodiment of the end plug in this application.

[0013] Explanation of reference numerals in the attached figures:

[0014] 1: Windshield wipers;

[0015] 10: Airflow guide sleeve;

[0016] 20: Shrapnel;

[0017] 21: Metal sheet;

[0018] 22: Buckle hole;

[0019] 221: Flat section;

[0020] 23: Card slot;

[0021] 24: Inclined guide block;

[0022] 30: Scraper strip;

[0023] 40: End plug;

[0024] 400: Gap;

[0025] 41: Shell base;

[0026] 410: Slide groove;

[0027] 411: Beveled surface;

[0028] 42: Clamping column;

[0029] 43, 43a: Fastener;

[0030] 44: Wing plate;

[0031] 45: Platform;

[0032] 450, 450a: Groove;

[0033] 46: Support plate;

[0034] 47: Clamping groove. Detailed Implementation

[0035] The detailed description and technical content of this application will be explained below with reference to the accompanying drawings. However, the drawings are for illustrative purposes only and are not intended to limit the scope of this application.

[0036] Please refer to Figure 1 and Figure 2 The diagram shows a perspective view and an exploded perspective view of the wiper end plug assembly structure of this application. This application provides an end plug assembly structure for a wiper 1, including a guide sleeve 10, a pair of springs 20, a wiper blade 30, and an end plug 40. The pair of springs 20 are inserted into the guide sleeve 10. One side of the wiper blade 30 is fixed between the pair of springs 20, and the other side protrudes outside the guide sleeve 10. Furthermore, the end plug 40 is fitted onto the guide sleeve 10 and the ends of the pair of springs 20. Accordingly, the pair of springs 20 are combined with the guide sleeve 10 and the wiper blade 30 and inserted into the end plug 40, thereby completing the end plug assembly structure of the wiper 1.

[0037] like Figure 2 As shown, the pair of spring clips 20 are inserted into the flow guide sleeve 10. Each spring clip 20 includes a metal plate 21, a snap hole 22, and a slot 23. The snap hole 22 is provided on the metal plate 21. The snap hole 22 is located at the middle of the cross-section of each metal plate 21, and the edge of the snap hole 22 maintains a flat section 221 to the side of the metal plate 21. The slot 23 is formed at the end of the metal plate 21. In this embodiment, the snap hole 22 is approximately pentagonal; in addition, the slot 23 is provided to be semi-elliptical.

[0038] Furthermore, the scraper 30 passes between the pair of spring pieces 20 and extends along the pair of spring pieces 20.

[0039] Furthermore, the end plug 40 is fitted over the ends of the guide sleeve 10 and the pair of spring clips 20 and protrudes from the scraper strip 30. The end plug 40 includes a housing 41, a pair of clamping posts 42, and a pair of fastening blocks 43. The pair of clamping posts 42 are disposed in the housing 41 and located at one end of the housing 41. Furthermore, the pair of fastening blocks 43 are respectively disposed on both sides of the housing 41 and located behind the pair of clamping posts 42.

[0040] In this embodiment, the end plug 40 has a pair of wing plates 44 formed on the housing 41; and the pair of fastening blocks 43 are correspondingly located on the pair of wing plates 44. The end plug 40 has a pair of platforms 45 formed inside the housing 41, and gaps 400 are formed between the pair of platforms 45 and the pair of wing plates 44. In addition, the end plug 40 has a support plate 46 formed between the pair of platforms 45. The support plate 46 connects the pair of platforms 45 and supports the pair of clamping posts 42.

[0041] Furthermore, the pair of fastening blocks 43 are respectively disposed on the side of the pair of wing plates 44 facing the pair of platforms 45, and the pair of fastening blocks 43 respectively protrude from one end of the pair of wing plates 44 facing the pair of clamping posts 42. In addition, the end plug 40 has a clamping groove 47 formed between the pair of clamping posts 42.

[0042] In this embodiment, each of the spring pieces 20 has an inclined guide block 24 formed on one side of the slot 23. In addition, the housing 41 of the end plug 40 has an inclined cut surface 411 formed on one side of each pair of clamping posts 42. Furthermore, the housing 41 has a sliding groove 410 formed on one side of each pair of platforms 45.

[0043] Please refer to another source. Figures 3 to 6 As shown, it displays a combined cross-sectional view of the wiper end plug assembly structure of this application. Figure 3 As shown, after the pair of spring clips 20 are combined with the guide sleeve 10 and the scraper 30, the pair of spring clips 20 are inserted into the end plug 40. Specifically, each of the spring clips 20 is inserted into the gap 400 between the pair of platforms 45 and the pair of wing plates 44. At this time, the pair of clamping posts 42 of the end plug 40 will engage with the slots 23 of the pair of spring clips 20, and one side of the slots 23 of each spring clip 20 will abut in the clamping groove 47. Accordingly, the left-right and front-back directions of the end plug 40 will be restricted and positioned by the clamping of the pair of spring clips 20.

[0044] It is worth noting that the inclined guide block 24 of each spring 20 abuts against the inclined cut surface 411 of the end plug 40. In addition, a portion of the flow guide sleeve 10 is inserted into the groove 410 of the housing 41 to increase the connection effect between the flow guide sleeve 10 and the end plug 40.

[0045] Please continue reading. Figure 4 When the pair of spring clips 20 are inserted into the end plug 40, each of the latching blocks 43 of the end plug 40 will correspondingly latch into the latching holes 22 of the pair of spring clips 20. Accordingly, the vertical direction of the end plug 40 will be restricted and positioned by the latching of the pair of spring clips 20.

[0046] like Figure 5As shown, in one embodiment of this application, the buckle hole 22 is located in the middle of the cross-section of the metal sheet 21. The edge of the buckle hole 22 has a flat section 221. The flat section 221 provides a cantilever effect and makes the buckle hole 22 more flexible to prevent the buckle block 43 from jumping out of the buckle hole 22.

[0047] Please refer to again Figure 6 The end plug 40 is fitted onto the end of the guide sleeve 10 and the pair of spring pieces 20 and exposes the scraper 30. Accordingly, the scraper 30 can perform a scraping action on the surface of the vehicle window.

[0048] Please refer to another source. Figure 7 As shown, it illustrates another embodiment of the end plug of this application. This embodiment, compared to... Figure 2 The end plugs 40 have a similar structure, except that each pair of platforms 45 is provided with a groove 450. This groove 450 is provided to prevent surface shrinkage during manufacturing, thereby increasing the product's aesthetic appeal and reducing costs. However, in practice, the end plug 40 may not have the groove 450.

[0049] Please refer to again Figure 8 As shown, it illustrates another embodiment of the end plug of this application. This embodiment, compared to... Figure 7 The end plug structures are largely the same, except that the latching blocks 43a of the end plug 40 are positioned corresponding to the grooves 450a of each platform 45. Accordingly, each latching block 43a can extend and latch into the groove 450a. In this way, when the wing plate 44 is deformed by external force, the latching blocks 43a can be prevented from jumping out of the latching holes 22.

[0050] The above description is only a preferred embodiment of this application and is not intended to limit the patent scope of this application. Other equivalent variations that utilize the patent spirit of this application should all fall within the patent scope of this application.

Claims

1. A structure for assembling a wiper end plug, comprising: Guide sleeve; A pair of spring clips are inserted into the flow guide sleeve. Each spring clip includes a metal plate body, a snap hole and a slot. The snap hole is provided on the metal plate body and the slot is opened at the end of the metal plate body. A scraper strip is inserted between the spring pieces and extends along the spring pieces; as well as An end plug is fitted onto the end of the flow guide sleeve and the spring sheet and protrudes from the scraper. The end plug includes a housing, a pair of clamping posts and a pair of fastening blocks. The clamping posts are disposed in the housing and located at one end of the housing. The pair of fastening blocks are respectively disposed on both sides of the housing and located behind the clamping posts. The spring piece is combined with the flow guide sleeve and the scraper and passes through the end plug. The clamping post and the slot are mutually locked, and each buckle is correspondingly snapped into the buckle hole of the pair of spring pieces. The end plug has a pair of wing plates formed on the housing, and the pair of fastening blocks are correspondingly located on the pair of wing plates; The end plug has a pair of platforms formed inside the housing, and a gap is formed between the pair of platforms and the pair of wing plates. Each of the spring clips is inserted into the gap, and the pair of fastening blocks protrude from the ends of the pair of wing plates facing the pair of clamping posts. The end plug has a support plate formed between the pair of platforms, and the support plate connects the pair of platforms and supports the pair of clamping columns.

2. The assembly structure of the wiper end plug as described in claim 1, wherein each of the spring pieces is formed with an oblique guide block on one side of the slot, and the shell seat of the end plug is formed with an oblique cut surface on one side of the clamping post, and the oblique guide block abuts against the oblique cut surface.

3. The assembly structure of the wiper end plug as described in claim 1, wherein the snap hole is located at the middle position of the cross-section of the metal sheet.

4. The assembly structure of the wiper end plug as described in claim 1, wherein the end plug is formed with a clamping groove between the clamping posts, and one side of the slot of each of the spring pieces is inserted into the clamping groove.

5. The assembly structure of the wiper end plug as described in claim 1, wherein each platform is provided with a groove.

6. The assembly structure of the wiper end plug as described in claim 5, wherein the fastening blocks of the end plug are arranged corresponding to the groove positions, and each of the fastening blocks extends and fastens into the groove.

7. The assembly structure of the wiper end plug as described in claim 1, wherein the housing is formed with a sliding groove on one side of the platform, and the guide sleeve is inserted through the sliding groove.

Images