Film pasting tool for transverse rib plate on automobile back door
By designing a film-applying fixture for the transverse stiffeners of a car's rear door, and utilizing permanent magnets and positioning surfaces to achieve precise application of the decorative film, the problem of poor positioning accuracy in existing technologies is solved, thereby improving film application efficiency and success rate, and reducing labor costs.
Patent Information
- Application Number
- CN202520125686.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In the existing technology, the process of applying decorative film to the horizontal ribs of the car's rear door suffers from poor edge positioning accuracy, resulting in film misalignment, wrinkles, and damage, as well as low efficiency and high cost.
A film-applying fixture for the horizontal stiffener of a car's rear door is designed. It uses permanent magnets to magnetically attach the film to the skirt and uses a positioning surface and scraper to achieve precise application of the decorative film. The fitting of curved protrusions and grooves ensures the correspondence and flatness of the decorative film with the curved frame plate.
It significantly improves the positioning accuracy of decorative film edges, reduces manual labor, increases film application efficiency and success rate, reduces damage to decorative film, and has a simple and economical overall structure.
Smart Images
Figure CN223703116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive tailgate accessory film application technology, specifically to a film application fixture for the horizontal ribs on the automotive tailgate. Background Technology
[0002] A horizontal rib is typically found in the middle of the tailgate of an SUV. This rib is a sheet metal component and serves two purposes: it acts as a suspension element for the spare tire, and it can also be used as a decorative panel for the tailgate, enhancing both its appearance and structural strength. When used as a decorative panel, a specified decorative film needs to be applied to the side facing outwards to ensure color coordination with other tailgate components.
[0003] like Figures 1-3 As shown, a transverse stiffener A for a car tailgate includes an arc-shaped frame plate A-1. The four top corners of the arc-shaped frame plate A-1 are respectively set with rounded corner structures. The upper edge of the arc-shaped frame plate A-1 has a skirt A-2 that bends towards its concave arc surface and extends upward thereto. The lower edge of the arc-shaped frame plate A-1 has a skirt A-3 that bends towards its concave arc surface and extends downward thereto. The upper edge of the skirt A-2 is provided with a plurality of arc-shaped grooves A-4 at intervals along its length direction. An arc-shaped protrusion A-5 is formed between two adjacent arc-shaped grooves A-4. The skirt A-2 is provided with a plurality of mounting holes A-6 located on the arc-shaped protrusions A-5 at intervals along its length direction. The skirt A-3 is also provided with a plurality of mounting holes A-6 at intervals along its length direction. After the transverse stiffeners are processed, decorative film needs to be applied to the convex arc surface of the curved frame plate facing the exterior of the vehicle body. Currently, the "visual positioning + manual film application method" is used for applying film to the transverse stiffeners. Because the curved frame plate has a curved structure, poor accuracy in visually positioning the edges is prone to occur when applying decorative film to its convex arc surface. Large edge positioning errors can lead to severe misalignment of the entire film after application. If a large edge positioning error is found after partial application of the decorative film, the film needs to be removed and the edge positioning re-visualized. Repeatedly removing, adjusting, and reapplying the decorative film can easily cause wrinkles or damage in certain areas, potentially rendering the film unusable. The "visual positioning + manual film application method" for applying film to transverse stiffeners is not only difficult and labor-intensive, with a scrap rate exceeding 30%, but it also severely restricts the efficiency of transverse stiffener film application, resulting in high labor costs and poor economic benefits. Therefore, this utility model proposes a film-applying fixture for the transverse stiffeners on the rear door of a car, in order to solve the above-mentioned technical problems. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a film-applying fixture for the horizontal ribs on the rear door of a car. In use, the fixture is magnetically attached to the skirt edge of the horizontal rib using several permanent magnets. Then, the upper edge of the decorative film is aligned with the positioning surface on the fixture. Finally, the decorative film is applied to the convex arc side of the arc-shaped frame plate of the horizontal rib using the palm or a scraper, proceeding from the middle to both ends and from top to bottom. This is equivalent to the traditional "visual positioning + manual film application method," significantly improving the positioning accuracy of the decorative film edge and avoiding the inaccuracies caused by poor edge positioning during the application process. The process of removing and repositioning the decorative film, which is often required due to poor adhesion, eliminates wrinkles and damage caused by secondary positioning. This ensures the flatness of the applied decorative film and good correspondence between the film and the convex side of the curved frame plate, resulting in a near 100% success rate. Compared to the "visual positioning + manual film application method," this significantly reduces the difficulty of edge positioning of the decorative film, thereby effectively shortening the film application time for each horizontal rib and reducing manual labor. This greatly improves the efficiency of film application for horizontal ribs on car tailgates, offering good economic practicality. The overall structure is simple, lightweight, and easy to manufacture, making it highly feasible to implement.
[0005] To achieve the above objectives, the technical solution of this utility model is to design a film-applying fixture for the horizontal stiffener on the rear door of a car, including an arc-shaped plate. Each end of the arc-shaped plate has a support arm extending forward. The corner where the support arm connects to the arc-shaped plate forms an arc-shaped groove II that matches the apex corner of the arc-shaped frame plate on the horizontal stiffener. The front sides of the support arm and the arc-shaped plate form a positioning surface for positioning one long edge of the decorative film. The lower front side of the arc-shaped plate has a stepped groove for accommodating a skirt edge I on the horizontal stiffener. Several permanent magnets are fixed to the top surface of the stepped groove. In use, the film-applying fixture is magnetically attracted and fixed to the skirt edge I of the horizontal stiffener by the several permanent magnets, with the skirt edge I correspondingly located inside the stepped groove. The two apex corners of the arc-shaped frame plate adjacent to both ends of the skirt edge I are respectively located inside the corresponding arc-shaped groove II.
[0006] This utility model discloses a film-applying fixture for the horizontal rib plate on the rear door of a car. In use, the fixture is magnetically fixed to the skirt edge of the horizontal rib plate using several permanent magnets. Then, the upper edge of the decorative film is aligned with the positioning surface on the fixture. Finally, the decorative film is applied to the convex arc surface of the arc-shaped frame plate of the horizontal rib plate using the palm or a scraper, proceeding from the center to both ends and from top to bottom. This method is equivalent to the traditional "visual positioning + manual film application," significantly improving the positioning accuracy of the decorative film edge and avoiding the need to remove the decorative film during application due to poor edge positioning accuracy. The repositioning operation eliminates wrinkles and damage to the decorative film caused by secondary positioning, ensuring good flatness of the applied decorative film and good correspondence between the decorative film and the convex arc side of the curved frame plate, with a near 100% success rate in film application. Compared with the "visual positioning + manual film application method", it significantly reduces the difficulty of edge positioning of the decorative film, thereby effectively shortening the film application time for each horizontal rib, reducing manual labor, and helping to greatly improve the processing efficiency of film application on the horizontal ribs of the car's rear door, with good economic practicality. The overall structural design is simple, lightweight and easy to use, and the preparation and implementation are highly feasible.
[0007] A preferred technical solution is that the rear side of the stepped groove is provided with a plurality of arc-shaped protrusions 2 at intervals along its length, and an arc-shaped groove 3 is formed between two adjacent arc-shaped protrusions 2. In use, the film-applying fixture is magnetically attracted and fixed to the skirt 1 of the transverse rib by a plurality of permanent magnets, and the arc-shaped protrusions 1 and 3 on the skirt 1 are fitted and adapted, and the arc-shaped grooves 1 and 2 on the skirt 1 are fitted and adapted. When the film-applying fixture of this utility model is used, the skirt 1 and the stepped groove are fitted and adapted by corresponding arc-shaped protrusions 1 and 3, and arc-shaped grooves 1 and 2, thereby significantly improving the installation stability of the film-applying fixture on the skirt 1.
[0008] A further preferred technical solution is that the permanent magnet is embedded in the top surface of the stepped groove, and the lower side of the permanent magnet is flush with the top surface of the stepped groove. The permanent magnet will not interfere with the fitting compatibility between the skirt of the transverse stiffener and the stepped groove of the film-applying fixture, thus ensuring that the film-applying fixture of this invention can be smoothly installed on the skirt of the transverse stiffener.
[0009] A further preferred technical solution is that the permanent magnet block is located inside the arc-shaped groove three, and several positioning pins extending into the corresponding arc-shaped groove three are fixed on the top surface of the stepped groove. The positioning pins and permanent magnet blocks are alternately distributed. In use, the film-applying fixture is magnetically attracted and fixed to the skirt of the transverse rib plate by several permanent magnet blocks, and the positioning pins are inserted into the corresponding mounting holes on the skirt. When the film-applying fixture of this utility model is used, the skirt is embedded in the stepped groove of the film-applying fixture, and the permanent magnet block in the stepped groove is magnetically attracted and fixed to the skirt of the transverse rib plate. The positioning pins are inserted into the corresponding mounting holes on the skirt, further improving the installation stability of the film-applying fixture on the skirt of the transverse rib plate. This effectively avoids displacement of the film-applying fixture caused by the operator aligning the decorative film with the positioning surface of the fixture, ensuring the positioning accuracy of the decorative film by the film-applying fixture.
[0010] A further preferred technical solution is that the film-applying fixture is made of ABS material, and is integrally formed using 3D printing technology or machining technology. This simplifies the processing method and ensures the smooth fabrication and implementation of this novel film-applying fixture.
[0011] A further preferred technical solution is that a layer of fleece is adhered to the top surface and the rear side surface of the stepped groove. The fleece layer is also applied to the side surface where the film-applying fixture meets the sheet metal of the transverse stiffener, thereby preventing scratches on the surface of the transverse stiffener during the application of the decorative film and improving safety.
[0012] A further preferred technical solution is that a handle is fixed to the upper side of the curved plate, which improves the ease of gripping during use.
[0013] The advantages and beneficial effects of this utility model are as follows:
[0014] 1. This utility model discloses a film-applying fixture for the horizontal rib plate on the rear door of a car. In use, the fixture is magnetically fixed to the skirt edge of the horizontal rib plate using several permanent magnets. Then, the upper edge of the decorative film is aligned with the positioning surface on the fixture. Finally, the decorative film is applied to the convex arc side of the arc-shaped frame plate of the horizontal rib plate using the palm or a scraper, proceeding from the middle to both ends and from top to bottom. This is equivalent to the traditional "visual positioning + manual film application method," significantly improving the positioning accuracy of the decorative film edge and avoiding the need to remove the decorative film during application due to poor edge positioning accuracy. The repositioning process eliminates wrinkles and damage caused by secondary positioning of the decorative film, ensuring good flatness of the applied film and good correspondence between the film and the convex arc side of the curved frame plate, resulting in a near 100% success rate. Compared to the "visual positioning + manual film application method," this significantly reduces the difficulty of edge positioning of the decorative film, thereby effectively shortening the film application time for each horizontal rib and reducing manual labor. This greatly improves the efficiency of film application for the horizontal ribs on the rear door of automobiles, offering good economic practicality. The overall structural design is simple, lightweight, and easy to implement, making it highly feasible.
[0015] 2. When the film-applying fixture of this utility model is used, the skirt and the stepped groove are fitted together by corresponding arc-shaped protrusions and arc-shaped grooves, and arc-shaped grooves and arc-shaped protrusions, which significantly improves the installation stability of the film-applying fixture on the skirt.
[0016] 3. The permanent magnet block is embedded in the top surface of the stepped groove, and the lower side of the permanent magnet block is flush with the top surface of the stepped groove. The permanent magnet block will not interfere with the fitting compatibility between the skirt of the transverse stiffener and the stepped groove of the film-applying fixture, thereby ensuring that the film-applying fixture of this utility model can be smoothly installed on the skirt of the transverse stiffener.
[0017] 4. When using the film-applying fixture of this utility model, the skirt is embedded in the stepped groove of the film-applying fixture, and the permanent magnet in the stepped groove is magnetically attracted and fixed to the skirt of the horizontal stiffener. The positioning pin is inserted into the corresponding mounting hole on the skirt, which further improves the installation stability of the film-applying fixture on the skirt of the horizontal stiffener. It effectively avoids displacement of the film-applying fixture caused by the operator aligning the decorative film with the positioning surface of the film-applying fixture, thus ensuring the positioning accuracy of the film-applying fixture for the decorative film.
[0018] 5. A layer of fleece is adhered to the top surface and the rear side surface of the stepped groove. The fleece layer is also applied to the side surface where the film-applying fixture meets the sheet metal of the transverse stiffener, thus preventing scratches on the surface of the transverse stiffener during the application of the decorative film and improving safety. Attached Figure Description
[0019] Figure 1This is a schematic diagram of the structure of the horizontal rib on the rear door of an SUV car facing the outside of the vehicle body (without decorative film).
[0020] Figure 2 This is a schematic diagram of the structure of the horizontal stiffener on the rear door of an SUV facing the interior of the vehicle body in the background art.
[0021] Figure 3 This is a schematic diagram of the structure of an SUV car's rear tailgate after a decorative film has been applied to the side facing outwards of the vehicle body.
[0022] Figure 4 This is a front view of a film-applying fixture for the transverse stiffeners on the rear door of an automobile, according to this utility model.
[0023] Figure 5 This is a rear view of a film-applying fixture for the transverse stiffeners on the rear door of a car, according to this utility model.
[0024] Figure 6 This is a rear-view perspective view of a film-applying fixture for the horizontal stiffeners on the rear door of an automobile.
[0025] Figure 7 yes Figure 6 A magnified view of a section at point H in the middle;
[0026] Figure 8 This is a front view of the application state of a film-applying tool for the horizontal stiffener on the rear door of a car according to this utility model.
[0027] Figure 9 This is a rear view of the application state of a film-applying tool for the horizontal stiffener on the rear door of a car according to this utility model.
[0028] Figure 10 yes Figure 9 A magnified view of the area at point W in the middle.
[0029] In the diagram: A. Horizontal stiffener; A-1. Arc-shaped frame plate; A-2. Skirt 1; A-3. Skirt 2; A-4. Arc-shaped groove 1; A-5. Arc-shaped protrusion 1; A-6. Mounting hole; B. Decorative film; 1. Arc-shaped plate; 2. Support arm; 3. Arc-shaped groove 2; 4. Positioning surface; 5. Step groove; 6. Handle; 5-1. Arc-shaped protrusion 2; 5-2. Arc-shaped groove 3; 5-3. Positioning pin; 5-4. Permanent magnet block. Detailed Implementation
[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0031] Example
[0032] like Figures 4-7 As shown, this utility model is a film-applying fixture for the horizontal stiffener on the rear door of a car. It includes an arc-shaped plate 1, with a support arm 2 extending forward from each end of the arc-shaped plate 1. The corner where the support arm 2 connects to the arc-shaped plate 1 forms an arc-shaped groove 3 that matches the apex corner of the arc-shaped skeleton plate A-1 on the horizontal stiffener A. The front side of the support arm 2 and the front side of the arc-shaped plate 1 form a positioning surface 4 for positioning the long edge of the decorative film B. The front side of the lower side of the arc-shaped plate 1 is provided with a stepped groove 5 for accommodating the skirt edge A-2 on the horizontal stiffener A. Several permanent magnets 5-4 are fixed on the top surface of the stepped groove 5. In use, the film-applying fixture is magnetically attracted and fixed to the skirt edge A-2 on the horizontal stiffener A by the several permanent magnets 5-4. The skirt edge A-2 is located inside the stepped groove 5. The two apex corners of the arc-shaped skeleton plate A-1 adjacent to the two ends of the skirt edge A-2 are located inside the corresponding arc-shaped groove 3.
[0033] Preferably, the rear side of the stepped groove 5 is provided with a plurality of arc-shaped protrusions 5-1 at intervals along its length, and an arc-shaped groove 5-2 is formed between two adjacent arc-shaped protrusions 5-1. In use, the film-applying fixture is magnetically attracted and fixed to the skirt edge A-2 of the transverse stiffener A by a plurality of permanent magnets 5-4, and the arc-shaped protrusions A-5 on the skirt edge A-2 are fitted and adapted to the arc-shaped groove 5-2, and the arc-shaped grooves A-4 on the skirt edge A-2 are fitted and adapted to the arc-shaped protrusions 5-1.
[0034] More preferably, the permanent magnet block 5-4 is embedded in the top surface of the stepped groove 5, and the lower side surface of the permanent magnet block 5-4 is flush with the top surface of the stepped groove 5.
[0035] More preferably, the permanent magnet block 5-4 is located inside the arc-shaped groove 5-2, and a number of positioning pins 5-3 extending into the corresponding arc-shaped groove 5-2 are fixed on the top surface of the stepped groove 5. The positioning pins 5-3 and the permanent magnet block 5-4 are alternately distributed. In use, the film-applying fixture is magnetically attracted and fixed to the skirt A-2 of the transverse stiffener A by a number of permanent magnet blocks 5-4, and the positioning pins 5-3 are inserted into the corresponding mounting holes A-6 on the skirt A-2.
[0036] More preferably, the film-applying fixture is made of ABS material, and the film-applying fixture is integrally formed using 3D printing technology or machining technology.
[0037] More preferably, a layer of fleece is adhered to the top surface and the rear side surface of the stepped groove 5.
[0038] A further preferred technical solution is that a handle 6 is fixedly provided on the upper side of the arc-shaped plate 1.
[0039] The working principle of this utility model is as follows: A film-applying fixture for the horizontal stiffener on the rear door of a car.
[0040] Step 1: Use other auxiliary tools (such as clamps) to fix the transverse stiffener A, and make the skirt A-2 face upward and the convex arc side of the arc frame plate A-1 face the operator.
[0041] Step 2: Holding the handle 6, the film-applying fixture of this utility model is magnetically attached to the skirt edge A-2 of the transverse rib plate A by several permanent magnets 5-4. The skirt edge A-2 is located inside the stepped groove 5. The arc-shaped protrusion A-5 on the skirt edge A-2 is fitted with the arc-shaped groove 5-2, and the arc-shaped groove A-4 on the skirt edge A-2 is fitted with the arc-shaped protrusion 5-1. The positioning pin 5-3 is inserted into the corresponding mounting hole A-6 on the skirt edge A-2. The arc-shaped skeleton plate A-1 is adjacent to the two apex corners located at both ends of the skirt edge A-2, which are respectively located inside the corresponding arc-shaped groove 3 (see Appendix). Figures 8-10 );
[0042] Step 3: Tear off a portion of the release paper from the top of the lower side of the decorative film B. Hold both ends of the decorative film B and align the upper edge of the decorative film B with the positioning surface 4 on the film application fixture. Then, continue to tear off a portion of the release paper. Use your palm or a scraper to push and scrape the decorative film B from the middle to both ends so that the part of the decorative film B with the release paper torn off is adhered to the convex arc side of the arc frame plate A-1. Continue to tear off the release paper until the entire decorative film B is adhered to the convex arc side of the arc frame plate A-1.
[0043] Step 4: Using the handle 6, remove the film-applying fixture of this utility model from the transverse stiffener A, and remove the transverse stiffener A from the auxiliary tool to complete the film-applying process of one transverse stiffener A.
[0044] This utility model discloses a film-applying fixture for the horizontal rib plate on the rear door of a car. In use, the fixture is magnetically fixed to the skirt edge of the horizontal rib plate using several permanent magnets. Then, the upper edge of the decorative film is aligned with the positioning surface on the fixture. Finally, the decorative film is applied to the convex arc surface of the arc-shaped frame plate of the horizontal rib plate using the palm or a scraper, proceeding from the center to both ends and from top to bottom. This method is equivalent to the traditional "visual positioning + manual film application," significantly improving the positioning accuracy of the decorative film edge and avoiding the need to remove the decorative film during application due to poor edge positioning accuracy. The repositioning operation eliminates wrinkles and damage to the decorative film caused by secondary positioning, ensuring good flatness of the applied decorative film and good correspondence between the decorative film and the convex arc side of the curved frame plate, with a near 100% success rate in film application. Compared with the "visual positioning + manual film application method", it significantly reduces the difficulty of edge positioning of the decorative film, thereby effectively shortening the film application time for each horizontal rib, reducing manual labor, and helping to greatly improve the processing efficiency of film application on the horizontal ribs of the car's rear door, with good economic practicality. The overall structural design is simple, lightweight and easy to use, and the preparation and implementation are highly feasible.
[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A film-applying fixture for the transverse stiffeners on the rear door of a car, characterized in that, The system includes an arc-shaped plate (1), with a support arm (2) extending forward at each end of the arc-shaped plate (1). The corner where the support arm (2) connects to the arc-shaped plate (1) forms an arc-shaped groove (3) that matches the apex of the arc-shaped frame plate (A-1) on the transverse stiffener (A). The front side of the support arm (2) and the front side of the arc-shaped plate (1) form a positioning surface (4) for positioning the long edge of the decorative film (B). The lower front side of the arc-shaped plate (1) is provided with a surface for accommodating the transverse stiffener (A-1). A) The stepped groove (5) of the upper skirt (A-2) is provided with a number of permanent magnet blocks (5-4) fixed on the top surface of the stepped groove (5). When in use, the film-applying fixture is magnetically attracted and fixed to the skirt (A-2) of the transverse stiffener (A) by the several permanent magnet blocks (5-4). The skirt (A-2) is located inside the stepped groove (5). The arc-shaped skeleton plate (A-1) is adjacent to the two apex corners located at both ends of the skirt (A-2) and is located inside the corresponding arc-shaped groove (3).
2. The film-applying fixture for the transverse stiffener on the rear door of an automobile as described in claim 1, characterized in that, The rear side of the stepped groove (5) is provided with a number of arc-shaped protrusions (5-1) spaced apart along its length. An arc-shaped groove (5-2) is formed between two adjacent arc-shaped protrusions (5-1). In use, the film-applying fixture is magnetically attracted and fixed to the skirt (A-2) of the transverse stiffener (A) by a number of permanent magnets (5-4). The arc-shaped protrusions (A-5) on the skirt (A-2) are fitted and adapted to the arc-shaped groove (5-2), and the arc-shaped grooves (A-4) on the skirt (A-2) are fitted and adapted to the arc-shaped protrusions (5-1).
3. The film-applying fixture for the transverse stiffener on the rear door of an automobile as described in claim 2, characterized in that, The permanent magnet block (5-4) is embedded on the top surface of the stepped groove (5), and the lower side of the permanent magnet block (5-4) is flush with the top surface of the stepped groove (5).
4. The film-applying fixture for the transverse stiffener on the rear door of an automobile as described in claim 3, characterized in that, The permanent magnet block (5-4) is located inside the arc-shaped groove three (5-2). Several positioning pins (5-3) extending into the corresponding arc-shaped groove three (5-2) are fixed on the top surface of the stepped groove (5). The positioning pins (5-3) and the permanent magnet block (5-4) are alternately distributed. In use, the film-applying fixture is magnetically attracted and fixed to the skirt one (A-2) of the transverse stiffener (A) by several permanent magnet blocks (5-4), and the positioning pins (5-3) are inserted into the corresponding mounting holes (A-6) on the skirt one (A-2).
5. The film-applying fixture for the transverse stiffener on the rear door of an automobile as described in claim 4, characterized in that, The film-applying fixture is made of ABS material and is integrally formed using 3D printing technology or machining technology.
6. The film-applying fixture for the transverse stiffener on the rear door of an automobile as described in claim 5, characterized in that, The top surface and the rear side surface of the stepped groove (5) are both covered with a layer of velvet.
7. The film-applying fixture for the transverse stiffener on the rear door of an automobile as described in claim 6, characterized in that, A handle (6) is fixedly provided on the upper side of the arc plate (1).