A retractor overlap structure, a retractor and a method

Abstract

This invention discloses a retractor overlap structure, a retractor, and a method, belonging to the field of automotive technology. It includes a mounting plate, with a first overlap plate extending upwards from one end along its length, a second overlap plate extending inwards from the other end along its length, and a third overlap plate extending downwards from one end along its width. The first overlap plate forms a first angle with the mounting plate, and the third overlap plate forms a second angle with the mounting plate. A mounting space for the retractor is provided between the first, second, and third overlap plates and the mounting plate to counteract retractor vibration during vehicle movement. This design ensures that the retractor's modal characteristics, mounting point dynamic stiffness, and sensitivity meet requirements with a relatively small thickness, solving the problem of abnormal noise from the retractor during vehicle driving.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and more particularly to a retractor overlap structure, a retractor, and a method. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] In recent years, with the continuous improvement of people's living standards, their requirements for daily life, including clothing, food, housing, and transportation, have also been increasing. Driving has become the choice for most people among various modes of transportation, leading to higher demands for car comfort. Abnormal noises, as a problem that is clearly perceived by users during driving, greatly affect the driving comfort of both drivers and passengers. There are many types of abnormal noises, such as body noises, suspension noises, interior noises, and winder noises. Among these, winder noise, as one of the most common, has long troubled car manufacturers. Therefore, preventing winder noise problems in advance has become a focus for all car manufacturers.

[0004] Since the retractor is usually fixed to the vehicle body by a retractor bracket, the abnormal noise is caused by the relative displacement between two adjacent components. In order to avoid the occurrence of abnormal noise from the retractor in advance, it is necessary to control the retractor mode, sensitivity, and dynamic stiffness of the mounting point of the retractor bracket.

[0005] Currently, the rear retractor bracket in vehicles uses a two-point installation. In order to ensure that the retractor mode, the dynamic stiffness of the mounting point and the sensitivity meet the requirements, it is necessary to increase the thickness of the bracket and the support plate below the bracket, which increases both the installation space and the cost. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a retractor overlap structure, a retractor, and an installation method. The three-point overlap installation method ensures that the retractor's modal characteristics, installation point dynamic stiffness, and sensitivity meet the requirements with a relatively small thickness.

[0007] In a first aspect, the present invention provides a retractor overlap structure;

[0008] A retractor overlap structure includes a mounting plate;

[0009] The mounting plate has a first overlapping plate extending upward at one end along the length direction, a second overlapping plate extending inward at the other end along the length direction, and a third overlapping plate extending downward at one end along the width direction.

[0010] The first overlapping plate forms a first angle with the mounting plate, and the third overlapping plate forms a second angle with the mounting plate. There is a retractor mounting space between the first overlapping plate, the second overlapping plate, the third overlapping plate and the mounting plate to counteract the retractor vibration during vehicle movement.

[0011] By adopting the above technical solution, the first overlapping plate, the second overlapping plate, and the third overlapping plate form a T-shaped distribution. The retractor forms a three-point overlap with the rear side inner panel and the D-pillar through the retractor overlapping structure, which greatly improves the dynamic stiffness of the retractor mounting point, thereby enhancing the modality and affecting the dynamic stiffness and sensitivity of the mounting point. The three-point overlapping structure also reduces the vibration of the retractor during vehicle operation, avoiding resonance caused by external excitation and generating abnormal noise.

[0012] In some embodiments, the first lap plate includes a first plate body;

[0013] One end of the first plate along its length is connected to the mounting plate, the other end of the first plate along its length and one side of the first plate along its length are bent downwards, and an overlapping portion extends upwards from the other side of the first plate along its length.

[0014] By adopting the above technical solution, the first lap plate has a flat surface for welding to the vehicle body, which increases the contact area with the vehicle body and thus increases the welding area during subsequent installation, making the installation of the retractor lap structure more stable.

[0015] In some embodiments, the overlapping portion has a third included angle with the first plate.

[0016] By adopting the above technical solution, abnormal noises can be eliminated during the driving process of a car.

[0017] In some embodiments, the second overlapping plate includes a second plate body, which is vertically disposed at the other end of the mounting plate along the length direction, and the second plate body is located at one end of the mounting plate along the width direction;

[0018] A limiting plate is provided on one side of the second plate, and the limiting plate extends toward the middle of the mounting plate.

[0019] By adopting the above technical solutions, the installation of the wire harness is guaranteed while meeting the requirements for the arrangement of the retractor, saving space in the rear row, reducing weight, and making the design layout more reasonable.

[0020] In some embodiments, the mounting plate is provided with ribs.

[0021] By adopting the above technical solutions, the rigidity of the mounting plate is increased, and the modal performance is improved.

[0022] In some embodiments, the first overlapping plate is used to overlap with the lower connecting plate of the D-pillar, the second overlapping plate is used to overlap with the inner panel of the C-pillar, and the third overlapping plate is used to overlap with the inner panel of the C-pillar.

[0023] By adopting the above technical solution, the retractor mounting plate increases the overlap with the side wall, improving rigidity and thus enhancing the modality, which in turn affects the dynamic stiffness and sensitivity of the mounting point.

[0024] In some embodiments, a speaker mounting space is formed between the third overlapping plate and the mounting plate.

[0025] By adopting the above technical solution, a support position is provided for the speaker, thus optimizing the spatial arrangement to the maximum extent.

[0026] In some embodiments, the mounting plate, the first overlapping plate, the second overlapping plate, and the third overlapping plate are made using sheet metal processing.

[0027] By adopting the above technical solutions, the manufacturing process of the retractor overlap structure is reasonable and convenient.

[0028] Secondly, the present invention provides a retractor;

[0029] A retractor includes the aforementioned retractor overlap structure and a retractor body, wherein the retractor body is disposed on the retractor overlap structure.

[0030] Thirdly, the present invention provides a method for installing a retractor;

[0031] A retractor installation method, based on the above-mentioned retractor overlap structure, includes the following steps:

[0032] The retractor overlap structure is installed on the rear assembly of the rear side panel, so that the first overlap plate is connected to the lower connecting plate of the D pillar, the second overlap plate is connected to the inner panel of the C pillar, and the third overlap plate is connected to the inner panel of the C pillar to form a three-point overlap.

[0033] Place the retractor on the mounting plate and secure it with bolts.

[0034] One or more technical solutions provided by this invention have at least the following technical effects or advantages:

[0035] 1. The technical solution provided by the present invention adopts a T-shaped overlap method. The mounting plate forms a three-point overlap with the rear side inner panel and the D-pillar through the flange, which greatly improves the dynamic stiffness of the retractor bracket mounting point and avoids abnormal noise from the retractor during the movement of the car.

[0036] 2. The technical solution provided by this invention uses sheet metal processing to manufacture the coiler overlap structure. The process is reasonable and easy to manufacture. It does not require overly complex molds and can meet the needs of related models on the same platform.

[0037] 3. The technical solution provided by this invention, while meeting the requirements for the arrangement of the retractor, ensures the installation of the trim panel and wiring harness, saves space in the rear row, reduces weight, and has a reasonable design layout, maximizing the optimization of space arrangement. Attached Figure Description

[0038] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0039] Figure 1 This is a side view of the retractor overlap structure provided in an embodiment of the present invention;

[0040] Figure 2 This is an isometric schematic diagram of the retractor overlap structure provided in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the overlap between the retractor overlap structure and the inner side panel provided in an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the overlap between the retractor overlap structure and the inner side panel at another angle, provided in an embodiment of the present invention.

[0043] In the diagram: 1. Mounting plate; 2. Second overlapping plate; 3. First overlapping plate; 4. Third overlapping plate; 5. Mounting through hole; 6. C-pillar inner panel; 7. Rear wheel arch outer panel; 8. Rear top crossbeam lower connecting plate; 9. D-pillar lower connecting plate; 10. CD-pillar lower connecting plate; 11. Speaker support plate.

[0044] The distances or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only. Detailed Implementation

[0045] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0046] Example 1

[0047] Existing retractor mounting brackets cannot meet the modal, mounting point stiffness, and sensitivity requirements of the retractor. To solve the above technical problems, this invention proposes a retractor overlap structure that provides a reliable mounting platform for the retractor while meeting performance requirements.

[0048] Combination Figures 1-4 The retractor overlap structure includes a mounting plate 1. A first overlap plate 3 extends upward from one end of the mounting plate 1 along its length. A second overlap plate 2 extends inward from the other end of the mounting plate 1 along its length. A third overlap plate 4 extends downward from one end of the mounting plate along its width. The second overlap plate 2 and the third overlap plate 4 are on the same side. A first angle, which is obtuse, is formed between the first overlap plate 3 and the mounting plate 1. A second angle, which is also obtuse, is formed between the third overlap plate 4 and the mounting plate 1. A retractor mounting space is provided between the first overlap plate 3, the second overlap plate 2, the third overlap plate 4, and the mounting plate 1 to counteract retractor vibration during vehicle movement.

[0049] In one embodiment, the first overlapping plate 3 includes a first plate body. One end of the first plate body along the length direction is connected to the mounting plate 1. The other end of the first plate body along the length direction and one side of the first plate body along the length direction are bent downwards. The other side of the first plate body along the length direction is bent upwards and extends to form an overlapping portion. At the same time, the mounting plate 1 is bent upwards and has a flange. The flange is connected to the overlapping portion. There is a third included angle between the overlapping portion and the first plate body. The third included angle is an obtuse angle.

[0050] To coordinate with other processes in automobile production, the second overlapping plate 2 includes a second plate body, which is vertically mounted at the other end of the mounting plate 1 along its length and at one end of the mounting plate 1 along its width. A limiting plate is installed on one side of the second plate body, extending towards the center of the mounting plate 1 to avoid interfering with the normal installation of the wiring harness. The mounting plate 1, the first overlapping plate 3, the second overlapping plate 2, and the third overlapping plate 4 are an integral structure, ensuring the overall stability of the retractor overlapping structure. The third overlapping plate 4 and the mounting plate 1 form a speaker mounting space for mounting a speaker support plate 11, which in turn mounts the speaker, making the overall layout more rational.

[0051] In one embodiment, the assembly also includes a C-pillar inner panel 6, a CD-pillar lower connecting plate 10, a rear wheel arch outer panel 7, a speaker support plate 11, a D-pillar lower connecting plate 9, a rear top crossbeam lower connecting plate 8, and a retractor. One side of the rear top crossbeam lower connecting plate 8 along its length overlaps with the other side of the D-pillar lower connecting plate 9 along its length. The bottom edge of the C-pillar inner panel 6 overlaps with the top edge of the rear wheel arch outer panel 7 and is formed integrally by spot welding. The top edge of the C-pillar inner panel 6 overlaps with the bottom edge of the rear top crossbeam lower connecting plate 8 and the bottom edge of the D-pillar lower connecting plate 9 and is formed integrally by spot welding. The above two parts are connected by the CD-pillar lower connecting plate 10. The side of the CD-pillar lower connecting plate 10 is connected to the C-pillar inner panel 6 and the rear wheel arch outer panel 7, and the other side of the CD-pillar lower connecting plate 10 is connected to the bottom edge of the D-pillar lower connecting plate 9, thereby forming the rear assembly of the rear side panel inner panel. The lower connecting plate 8 of the rear top beam and the lower connecting plate 9 of the D column are recessed inward, forming an installation space for the retractor overlapping structure in conjunction with the inner plate 6 of the C column.

[0052] Mounting plate 1 overlaps with the lower connecting plate 9 of the D-pillar via the first overlapping plate 3 and is welded to the lower connecting plate 9 of the D-pillar. It also overlaps with the inner plate 6 of the C-pillar via the second overlapping plate 2 and is welded to the inner plate 6 of the C-pillar. Finally, it overlaps with the inner plate 6 of the C-pillar via the third overlapping plate 4 and is welded to the inner plate 6 of the C-pillar, thus forming a three-point overlap. The retractor is fixed to the mounting plate 1 by a single bolt passing through the mounting through hole 5 on the mounting plate 1. The speaker support plate 11 is installed below the mounting plate 1.

[0053] Based on this, the mounting plate 1 is overlapped with the side wall to increase rigidity and thus improve the modality, so as to prevent the retractor overlap structure from resonating under external excitation and producing abnormal noise.

[0054] To further increase the rigidity of the mounting plate 1 and improve its modal performance, as one implementation method, the mounting plate 1 has ribs, such as... Figure 2 As shown, the ribs are elongated protrusions or depressions on the mounting plate 1.

[0055] Example 2

[0056] Based on the above-described retractor overlap structure, this embodiment also provides a retractor, the main body of which is bolted to the retractor overlap structure described in the above embodiment. Since the above-described retractor overlap structure has the above-described technical effects, please refer to the above embodiment for the technical effects of the retractor using this retractor overlap structure.

[0057] Specifically, the retractor includes a retractor body and a retractor overlap structure, with the retractor body fixed to the retractor overlap structure by bolts.

[0058] Example 3

[0059] Based on the above-described retractor overlap structure, this embodiment provides a retractor installation method, including the following steps:

[0060] Step 1: Install the retractor overlap structure onto the rear assembly of the rear side panel, so that the first overlap plate 3 is connected to the lower connecting plate 9 of the D pillar, the second overlap plate 2 is connected to the inner panel 6 of the C pillar, and the third overlap plate 4 is connected to the inner panel 6 of the C pillar, to form a three-point overlap.

[0061] Step 2: Place the retractor on the mounting plate 1, and pass the bolts through the mounting holes 5 on the retractor and the mounting plate 1 in sequence to fix the retractor to the mounting plate 1.

[0062] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A retractor overlap structure, characterized in that, Including mounting plate; The mounting plate has a first overlapping plate extending upward at one end along the length direction, a second overlapping plate extending inward at the other end along the length direction, and a third overlapping plate extending downward at one end along the width direction. The first overlapping plate forms a first angle with the mounting plate, and the third overlapping plate forms a second angle with the mounting plate. There is a retractor mounting space between the first overlapping plate, the second overlapping plate, the third overlapping plate and the mounting plate to counteract the retractor vibration during vehicle movement. The first overlapping plate includes a first plate body; one end of the first plate body along the length direction is connected to the mounting plate, the other end of the first plate body along the length direction and one side of the first plate body along the length direction are bent downward, and an overlapping portion extends upward from the other side of the first plate body along the length direction; the overlapping portion and the first plate body have a third included angle. The second overlapping plate includes a second plate body, which is vertically disposed at the other end of the mounting plate along the length direction and at one end of the mounting plate along the width direction; a limiting plate is provided on one side of the second plate body, and the limiting plate extends toward the middle of the mounting plate; The first overlapping plate is used to overlap with the lower connecting plate of the D-pillar, the second overlapping plate is used to overlap with the inner panel of the C-pillar, and the third overlapping plate is used to overlap with the inner panel of the C-pillar.

2. The retractor overlap structure as described in claim 1, characterized in that, The mounting plate is provided with ribs.

3. The retractor overlap structure as described in claim 1, characterized in that, The third overlapping plate and the mounting plate form a speaker mounting space.

4. The retractor overlap structure as described in claim 1, characterized in that, The mounting plate, the first overlapping plate, the second overlapping plate, and the third overlapping plate are made using sheet metal processing.

5. A retractor, characterized in that, It includes the retractor overlap structure and the retractor body as described in any one of claims 1-4, wherein the retractor body is disposed on the retractor overlap structure.

6. A method for installing a retractor, based on the retractor overlap structure according to any one of claims 1-4, characterized in that, Includes the following steps: The retractor overlap structure is installed on the rear assembly of the rear side panel, so that the first overlap plate is connected to the lower connecting plate of the D pillar, the second overlap plate is connected to the inner panel of the C pillar, and the third overlap plate is connected to the inner panel of the C pillar to form a three-point overlap. Place the retractor on the mounting plate and secure it with bolts.

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