Universal boneless windshield wiper middle framework
By designing a general boneless wiper intermediate skeleton, and using the combination of spring steel blades and intermediate snaps, the existing boneless wiper production efficiency and difficulty in consistency are solved, and the results of automated production and suitable for multiple models are achieved.
Patent Information
- Application Number
- CN202422074418.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The internal structure of existing boneless wipers is complex and difficult to achieve automated production, resulting in low assembly efficiency, difficult to control quality consistency, and difficult to match wiper components of different models.
A universal boneless wiper intermediate frame is designed, including spring steel blades and intermediate snaps. Through the combination of spring steel blades and intermediate snaps, the stable installation and connection of wiper components is achieved, which is suitable for a variety of vehicle models.
It realizes the automated production of wiper parts, ensures product consistency and quality control, reduces the production cost of wiper consumables, and is suitable for various vehicle models, making it convenient for mass production.
Smart Images
Figure CN222905496U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of windshield wipers, and particularly relates to an intermediate skeleton of a universal boneless windshield wiper. Background Art
[0002] A windshield wiper is a tool for simply cleaning the front glass of a motor vehicle to prevent rainwater and other dirt from affecting the line of sight. There are roughly two types of windshield wipers. One is the traditional intermittent type, which is the most common windshield wiper and has three to four segments, and is adjusted by the driver according to the rain intensity and line of sight conditions. The other is the rain drop induction type, which is mostly used in mid - to - high - grade vehicles. A good windshield wiper must have the characteristics of heat resistance, cold resistance, acid and alkali resistance, corrosion resistance, being able to fit the windshield, reducing the burden on the motor, low noise, strong water repellency, soft texture and not scratching the windshield, etc., so as to make the field of vision clear.
[0003] At present, the internal structures of boneless windshield wipers on the market are in various forms, making it difficult to achieve automated production, wasting a lot of intangible labor, having low assembly efficiency, and being difficult to control the consistency of quality. Moreover, there are many types of buckle styles for vehicles on the market, and it is relatively difficult to match the wiper components of different vehicle models. Content of the Utility Model
[0004] The purpose of the utility model is to provide an intermediate skeleton of a universal boneless windshield wiper, aiming to solve the problems raised in the above - mentioned background art.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] An intermediate skeleton of a universal boneless windshield wiper includes a spring steel sheet and an intermediate buckle. The intermediate buckle is clamped at the middle position of the spring steel sheet. The spring steel sheet is composed of a left elastic sheet and a right elastic sheet of the same specification. The ends of the left elastic sheet and the right elastic sheet are provided with matching notch structures. A connecting piece is welded inside the notches at the ends of the left elastic sheet and the right elastic sheet. Positioning holes are provided at the middle positions of the left elastic sheet and the right elastic sheet. The intermediate buckle is a bent sheet metal part, and a raised edge strip is bent at the middle position of the intermediate buckle, and the raised edge strip is inserted into the middle of the positioning holes.
[0007] As a preferred scheme of the utility model, the left elastic sheet, the right elastic sheet and the connecting piece have different thicknesses, and weld seams are provided on the side walls of the ends of the left elastic sheet and the right elastic sheet and the side wall of the connecting piece.
[0008] As a preferred scheme of the utility model, buffer groove structures are provided in the middle of the left elastic sheet and the right elastic sheet, and the buffer grooves in the middle of the left elastic sheet and the right elastic sheet extend to the side walls of the connecting piece.
[0009] As a preferred embodiment of the present utility model, positioning notches which match with each other are provided on the inner sides of the ends of the left elastic piece and the right elastic piece, and the side walls of the positioning notches are communicated with the middle buffer grooves of the left elastic piece and the right elastic piece.
[0010] As a preferred embodiment of the present utility model, a clamping claw is bent on the side wall at the lower end of the middle buckle, and both sides of the clamping claw are respectively bent to the lower sides of the side walls of the left elastic piece and the right elastic piece.
[0011] As a preferred embodiment of the present utility model, a sleeve is welded on the inner side of the upper end of the middle buckle, and a through hole communicated with the sleeve is provided on the side wall of the upper end of the middle buckle.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: In this application, a general boneless wiper middle skeleton composed of a spring steel sheet and a middle buckle is added. The spring steel sheet is composed of two formed left elastic pieces and right elastic pieces welded by connecting pieces at both ends. The total length of the spring steel sheet can be made according to requirements between 8 inches and 34 inches. A positioning hole of 5mm×2.1mm is provided in the middle of the spring steel sheet to facilitate the insertion and fixation of the convex side strip of the middle buckle, maintain the stability of the connection structure between the spring steel sheet and the middle buckle, and maintain the stability of the distance between the left elastic piece and the right elastic piece, prevent the left elastic piece and the right elastic piece from interfering with each other, and facilitate the installation of other components. The middle buckle can maintain the connection strength of the spring steel sheet during high-speed operation of the vehicle and high-speed wipering, and prevent the wiper from falling off. The middle buckle is made by stamping, bending and forming from materials such as Q235 or stainless steel 304 or 201, which can ensure the strength of the middle buckle and reduce the possibility of deformation. A sleeve and a through hole structure are added to the end of the middle buckle, which can cooperate with the sizes of wiper arms of various vehicle models on the market. After assembly, plastic end buckles are sleeved on both ends of the inner bracket of the wiper, and then with an intermediate plastic decorative piece, it becomes a finished wiper component. The assembly difficulty is low, which is convenient for realizing fully automated production, can ensure the consistency and quality control of the product, and is applicable to various vehicle models, convenient for batch and automated production, and each component is convenient for disassembly and maintenance, reducing the manufacturing cost of wiper consumables and also saving the consumption cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:
[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0015] Figure 2 is a schematic diagram of the side structure of the present utility model;
[0016] Figure 3 This is a schematic view of the back structure of the present utility model;
[0017] Figure 4 This is an enlarged schematic view of the structure at position A of the present utility model;
[0018] Figure 5 This is an enlarged schematic view of the structure at position B of the present utility model;
[0019] Figure 6 This is a three-dimensional schematic view of the middle buckle of the present utility model;
[0020] Figure 7 This is a front schematic view of the middle buckle of the present utility model.
[0021] In the figure: 100, spring steel sheet; 101, left elastic sheet; 102, right elastic sheet; 103, connecting piece; 104, positioning hole; 105, positioning notch; 200, middle buckle; 201, raised edge strip; 202, claw; 203, sleeve. Detailed implementation manners
[0022] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific implementation manners of the present utility model in conjunction with the accompanying drawings of the specification.
[0023] In the following description, many specific details are set forth in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0024] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.
[0025] Embodiment 1
[0026] Refer to Figures 1-7, which is the first embodiment of the present utility model. This embodiment provides a universal boneless wiper intermediate skeleton, including a spring steel sheet 100 and an intermediate buckle 200. The intermediate buckle 200 is clamped at the middle position of the spring steel sheet 100. The spring steel sheet 100 is composed of a left elastic sheet 101 and a right elastic sheet 102 with the same specifications. The ends of the left elastic sheet 101 and the right elastic sheet 102 are provided with matching notch structures. A connecting sheet 103 is welded inside the notches at the ends of the left elastic sheet 101 and the right elastic sheet 102. Positioning holes 104 are provided at the middle positions of the left elastic sheet 101 and the right elastic sheet 102. The intermediate buckle 200 is a bent sheet metal part. A raised edge strip 201 is bent at the middle position of the intermediate buckle 200. The raised edge strip 201 is inserted into the middle of the positioning hole 104. The universal boneless wiper intermediate skeleton composed of the spring steel sheet 100 and the intermediate buckle 200, the connecting sheet 103 is welded to the ends of the left elastic sheet 101 and the right elastic sheet 102, forming a relatively stable structure with the left elastic sheet 101 and the right elastic sheet 102, which is used to install components such as the wiper rubber strip and decorative parts, provides an installation and positioning basis for the rubber strip and decorative strip, and maintains the stability of the positions of components such as the rubber strip and decorative parts. A positioning hole 104 is provided in the middle of the spring steel sheet 100 composed of the left elastic sheet 101 and the right elastic sheet 102, which is docked with the raised edge strip 201 at the bottom of the intermediate buckle 200. The raised edge strip 201 at the bottom of the intermediate buckle 200 is inserted into the positioning hole 104, so that the side wall edge strip of the intermediate buckle 200 contacts the left elastic sheet 101 and the right elastic sheet 102. The raised edge strip 201 can limit the left elastic sheet 101 and the right elastic sheet 102 on the basis of the connection of the intermediate buckle 200, and maintain the stability of the distance between the left elastic sheet 101 and the right elastic sheet 102.
[0027] Specifically, the left elastic sheet 101, the right elastic sheet 102 and the connecting sheet 103 have different thicknesses, and weld seams are provided on the side walls of the ends of the left elastic sheet 101 and the right elastic sheet 102 and the side wall of the connecting sheet 103. Reserving the weld seam structure while having different thicknesses can ensure that the raised welding slag is ground off after welding between the left elastic sheet 101, the right elastic sheet 102 and the connecting sheet 103, and can ensure the welding strength.
[0028] Furthermore, buffer groove structures are provided in the middle of the left elastic sheet 101 and the right elastic sheet 102, and the buffer grooves in the middle of the left elastic sheet 101 and the right elastic sheet 102 extend to the side walls of the connecting sheet 103. The buffer groove components in the middle of the left elastic sheet 101 and the right elastic sheet 102 are used to cooperate with the installation of components such as the rubber strip, and can keep the rubber strip in complete butt joint with the left elastic sheet 101 and the right elastic sheet 102.
[0029] Preferably, positioning notches 105 are provided on the inner sides of the ends of the left elastic piece 101 and the right elastic piece 102. The side walls of the positioning notches 105 communicate with the middle buffer grooves of the left elastic piece 101 and the right elastic piece 102. The positioning notches 105 provided on the inner sides of the ends of the left elastic piece 101 and the right elastic piece 102 are used to cooperate with the installation of the rubber strip and the decorative piece, position components such as the rubber strip and the decorative piece, and maintain the stability of the relative positions of the wiper components.
[0030] Specifically, a claw 202 is bent on the side wall at the lower end of the middle buckle 200. The two sides of the claw 202 are respectively bent below the side walls of the left elastic piece 101 and the right elastic piece 102. Adding the claw 202 structure at the lower end of the middle buckle 200 can cooperate with the convex edge strip 201 to dock with the left elastic piece 101 and the right elastic piece 102, and can further limit the left elastic piece 101 and the right elastic piece 102, maintain the stability of the distance between the left elastic piece 101 and the right elastic piece 102, and prevent the left elastic piece 101 and the right elastic piece 102 from loosening from below the middle buckle 200.
[0031] Specifically, a sleeve 203 is welded to the inner side of the upper end of the middle buckle 200, and a through hole communicating with the sleeve 203 is provided on the side wall of the upper end of the middle buckle 200. The sleeve 203 is installed inside the through hole at the upper end of the middle buckle 200. The sleeve 203 is convenient for docking with other components, and can also improve the connection strength of the middle buckle 200 to prevent the middle buckle 200 from deforming and affecting the operation of the wiper.
[0032] In summary, the universal boneless wiper intermediate skeleton composed of the spring steel sheet 100 and the intermediate buckle 200. The spring steel sheet 100 is composed of two formed left elastic sheets 101 and right elastic sheets 102 welded by the connecting sheets 103 at both ends. The total length of the spring steel sheet can be made according to requirements between 8 inches and 34 inches. A positioning hole 104 with a size of 5mm×2.1mm is provided in the middle of the spring steel sheet 100 to facilitate the insertion and fixation of the protruding edge strip 201 of the intermediate buckle 200, maintaining the stability of the connection structure between the spring steel sheet 100 and the intermediate buckle 200, and being able to maintain the stability of the distance between the left elastic sheet 101 and the right elastic sheet 102, preventing the left elastic sheet 101 and the right elastic sheet 102 from interfering with each other, and facilitating the installation of other components. The intermediate buckle 200 can maintain the connection strength of the spring steel sheet 100 during high-speed vehicle operation and high-speed windshield wiper operation, preventing the wiper from falling off. The intermediate buckle 200 is formed by stamping and bending from materials such as Q235 or stainless steel 304 or 201, which can ensure the strength of the intermediate buckle 200 and reduce the possibility of deformation. A sleeve 203 and a through-hole structure are added to the end of the intermediate buckle 200, which can cooperate with the sizes of windshield wiper arms of various vehicle models on the market. After assembly, plastic end clips are sleeved on both ends of the inner bracket of the wiper, and then with an intermediate plastic decorative piece, it becomes a finished wiper component. The assembly difficulty is low, facilitating full automation production, ensuring product consistency and quality control, and being universal for various vehicle models, facilitating batch and automated production, and each component is convenient for disassembly and maintenance, reducing the manufacturing cost of wiper consumables and also saving consumer costs.
[0033] It is important to note that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0034] In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).
[0035] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing, and production.
[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.
Claims
1. A universal boneless wiper intermediate frame, characterized in that: The invention comprises a spring steel sheet (100) and a middle buckle (200), wherein the middle buckle (200) is buckled in the middle position of the spring steel sheet (100), the spring steel sheet (100) is composed of a left spring sheet (101) and a right spring sheet (102) of the same specification, the ends of the left spring sheet (101) and the right spring sheet (102) are provided with matching notch structures, the inner sides of the notches at the ends of the left spring sheet (101) and the right spring sheet (102) are welded with connecting sheets (103), the middle positions of the left spring sheet (101) and the right spring sheet (102) are provided with positioning holes (104), the middle buckle (200) is a bent sheet metal part, the middle position of the middle buckle (200) is provided with a raised side strip (201) bent, and the raised side strip (201) is inserted in the middle of the positioning hole (104).
2. A universal frameless wiper intermediate frame according to claim 1, characterized in that: The left spring sheet (101) and the right spring sheet (102) have different thicknesses from the connecting sheet (103), and welding seams are provided on the end side walls of the left spring sheet (101) and the right spring sheet (102) and the side wall of the connecting sheet (103).
3. The universal frameless wiper intermediate frame according to claim 1, characterized in that: A buffer groove structure is provided between the left spring sheet (101) and the right spring sheet (102), and the buffer groove between the left spring sheet (101) and the right spring sheet (102) extends to the side wall of the connecting sheet (103).
4. The universal boneless wiper intermediate frame according to claim 3, characterized in that: Matching positioning notches (105) are provided on the inner sides of the ends of the left spring sheet (101) and the right spring sheet (102), and the side walls of the positioning notches (105) are connected to the intermediate buffer grooves of the left spring sheet (101) and the right spring sheet (102).
5. The universal frameless wiper intermediate frame according to claim 1, characterized in that: A clamping claw (202) is bent on the side wall at the lower end of the middle buckle (200), and two sides of the clamping claw (202) are respectively bent to the bottom of the side walls of the left spring sheet (101) and the right spring sheet (102).
6. The universal frameless wiper intermediate frame according to claim 1, characterized in that: A sleeve (203) is welded to the inner side of the upper end of the middle buckle (200), and a through hole communicating with the sleeve (203) is provided on the side wall of the upper end of the middle buckle (200).