A fixed bracket assembly

By using plastic materials and an innovatively designed spring structure, lightweighting and simplified assembly are achieved, solving the problems of heavy weight and difficult assembly of automotive interior trim panel fixing brackets, and improving assembly efficiency and success rate.

CN115195627BActive Publication Date: 2025-11-28ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Patent Information

Application Number
CN202211038785.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-28
Publication Date
2025-11-28
Estimated Expiration
2042-08-28

AI Technical Summary

Technical Problem

Existing automotive interior trim panel mounting brackets are heavy, prone to misalignment during assembly leading to failure to secure the panel, and involve cumbersome procedures.

Method used

The bracket body is combined with plastic material, and an inverted U-shaped second spring and a flat first spring are designed. Tool-free assembly is achieved through convex avoidance holes and cantilever structure, and the cross-hole design is used to improve the fault tolerance rate.

Benefits of technology

The weight of the bracket was reduced, the assembly process was simplified, the tolerance for misalignment between the decorative panel and the bracket holes was increased, and assembly failure caused by misaligned holes was avoided.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a fixing support assembly, which comprises a support body, the upper end of the support body is connected with a second spring sheet through a second mounting slot, the lower end of the support body is provided with a first mounting slot, two convex-shaped avoiding holes are arranged in the first mounting slot, the convex-shaped avoiding hole located at the upper portion is fixedly connected with a first spring sheet through a fixing rib, the front surface of the support body is provided with a cover plate, and the rear surface of the support body is used for connecting a metal plate. The fixing support assembly is characterized in that most of the materials of the support assembly are plastic parts, so that the weight of the parts is reduced; meanwhile, the support assembly does not need to be assembled by using tools and can be assembled manually, and the assembly is convenient and saves labor; in addition, the fixing holes of the support assembly and the decorative plate are matched in the form of cross intersection, the fault tolerance rate in the part assembly process is improved, and the problem that the hole deviation caused by the precision deviation cannot be assembled is avoided.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automotive interior, in particular to a fixing support assembly. BACKGROUND

[0002] At present, in order to make the automotive interior decorative plate more firm after assembly, a fixing point is generally made on the decorative plate, and the decorative plate is fixed on the support through the standard (bolt, screw, etc.) to avoid the problem of shaking and producing abnormal sound of the decorative plate.

[0003] The existing decorative plate fixing support is formed by metal stamping, and the fixing hole of the decorative plate on the support is welded by a projection welding nut, the decorative plate is fixed on the support through the bolt, and the support is fixed on the vehicle body sheet metal through the bolt. The fixing hole of the support on the sheet metal usually has two, one is a round hole for positioning, and the other is a waist-shaped hole; the fixing hole of the decorative plate is generally a waist-shaped hole to avoid deviation of the bolt that cannot be installed.

[0004] However, the above-mentioned prior art generally has the following disadvantages: 1. The fixing support is composed of metal, and the fixing bolt of the support is also a metal part, so the weight of the parts is heavy; 2. The fixing hole of the fixing support is composed of a round hole and a waist-shaped hole, and the design gap is 0.1mm. In the actual assembly process, since the surface of the bolt has a thread, the actual assembly gap is greater than 0.1mm, which causes the fixing hole of the decorative plate on the support to deviate from the designed position during the bolt assembly process, and the fixing hole of the decorative plate on the fixing support does not correspond to the hole position of the decorative plate itself; 3. The fixing hole of the decorative plate on the fixing support is a projection welding nut, and the decorative plate has a waist-shaped hole. Due to the influence of the size and shape of the bolt head, the required hole on the decorative plate cannot be opened too large, and opening too large can easily cause insufficient lap of the bolt head, and the size of the surface plug of the decorative plate also needs to be increased accordingly. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a fixing support assembly which overcomes the above-mentioned defects of the prior art, can reduce the weight of the support, reduce the operation steps of the assembly personnel, increase the fault tolerance rate when the decorative plate and the support are offset, and avoid the problem that the decorative plate cannot be assembled due to the offset.

[0006] The technical problem to be solved by the present application is solved by the following technical scheme:

[0007] A fixing support assembly, comprising a support body, the upper end of the support body is connected with a second spring piece through a second mounting slot, the lower end of the support body is provided with a first mounting slot, two Chinese character-shaped avoiding holes are arranged in the first mounting slot, the Chinese character-shaped avoiding hole located at the upper side is fixedly connected with a first spring piece through a fixing rib, the front surface of the support body is provided with a cover plate, and the rear surface of the support body is used for connecting a sheet metal.

[0008] Preferably, the upper end of the bracket body is provided with a second mounting groove, the upper end of the second mounting groove is provided with a chamfer to facilitate the connection of the second reed, the middle of the second mounting groove is provided with a waist-shaped avoiding hole, and the lower side of the waist-shaped avoiding hole is provided with an anti-falling groove.

[0009] Preferably, the second reed is in an inverted U-shaped structure, including a decorative cover adhering surface and a screw connecting surface, the decorative cover adhering surface is provided with a waist-shaped hole, the lower end of the waist-shaped hole is provided with an inwardly inclined clamping rib, the clamping rib is clamped with the anti-falling groove to prevent the second reed from falling off, and the bottom end of the screw connecting surface is a guide surface, and two rows of outwardly protruding cantilever structures are symmetrically arranged in the center of the screw connecting surface.

[0010] Preferably, the top end of the inverted U-shaped structure is provided with an opening, the thickness of the second mounting groove is the same as the thickness of the opening, and the width of the second mounting groove is 0.5 mm longer than the width of the single side of the second reed to prevent the second reed from shaking.

[0011] Preferably, the angle of the inwardly inclined clamping rib is 10°, and the depth of the anti-falling groove is 0.5 mm.

[0012] Preferably, the outwardly protruding angle of the cantilever structure is 45°, five circular holes with a diameter of 3 mm are arranged between the two cantilever structures, and the distance between the two cantilever structures is 1.6 mm.

[0013] Preferably, the first reed is in a planar structure, a plurality of cantilever bosses are arranged on the upper and lower sides of the first reed respectively, fixed wings are arranged on the two sides of the first reed, the periphery of the first reed is limited by the side wall of the first mounting groove and the limiting rib, and the upper surface of the first reed is fixedly connected by the fixing rib arranged on the two side edges of the convex-shaped avoiding hole.

[0014] Preferably, a plurality of fixing structures are arranged on the cover plate, the cover plate is connected with the bracket body through the fixing structures, an anti-falling block is arranged in the middle of the cover plate, and the anti-falling block is in a boss cantilever structure.

[0015] Preferably, the materials of the first reed and the second reed are both 65 manganese strip steel with a thickness of 0.4 mm, and the materials of the cover plate and the bracket body are both PP+GF40.

[0016] An assembling method of a fixed bracket assembly, including the following steps:

[0017] S1: aligning the convex-shaped avoiding hole of the fixed bracket with the two metal pins on the metal plate;

[0018] S2: assembling along the axis of the metal pin, so that the convex-shaped avoiding hole of the fixed bracket assembly passes through the metal pin;

[0019] S3: when the rear surface of the fixed support assembly and the sheet metal surface are attached, press the fixed support assembly with force, so that the outer convex cantilever boss of the first reed on the support assembly is clamped into the boss of the metal pin;

[0020] S4: after the fixed support assembly is assembled on the metal pin of the sheet metal, cover the cover plate to prevent the support assembly from falling off.

[0021] The above technical solutions of the present application have the following beneficial effects:

[0022] 1. Most of the materials of the support assembly are plastic parts, which reduces the weight of the parts;

[0023] 2. The support assembly of the present application does not need to be assembled with tools, and can be assembled manually, which is convenient and saves labor;

[0024] 3. The fixing hole of the support assembly and the decorative plate adopts a cross-shaped form to match, which improves the fault tolerance rate in the process of assembling parts, and avoids the problem of partial hole assembly caused by precision deviation. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0026] Figure 1 is a schematic view of the fixed support assembly of the present application.

[0027] Figure 2 is a schematic view of the second reed.

[0028] Figure 3 is another perspective view of the second reed.

[0029] Figure 4 is a connection schematic view of the second reed and the anti-falling groove.

[0030] Figure 5 is a connection schematic view of the second reed and the assembly groove.

[0031] Figure 6 is a schematic view of the first reed.

[0032] Figure 7 is a connection schematic view of the first reed and the support body.

[0033] Figure 8 is a connection top view of the first reed and the support body.

[0034] Figure 9 is a connection schematic view between the fixed rib and the fixed wing.

[0035] Figure 10 Structure diagram of the cover plate.

[0036] Figure 11 Another angle diagram of the cover plate.

[0037] Figure 12 Structure diagram of the bracket body.

[0038] Figure 13 Connection diagram of the bracket body and the second spring plate.

[0039] Figure 14 Connection diagram of the bracket body, the first spring plate and the second spring plate.

[0040] Figure 15 Diagram of the bracket bottom surface and the metal surface to be attached.

[0041] Figure 16 Diagram of the bracket assembly and the metal surface to be attached (metal pin not clamped).

[0042] Figure 17 Another angle diagram of the bracket assembly and the metal surface to be attached (metal pin not clamped).

[0043] Figure 18 Diagram of the bracket bottom surface and the metal surface to be attached (metal pin clamped).

[0044] Figure 19 Another angle diagram of the bracket bottom surface and the metal surface to be attached (metal pin clamped).

[0045] Figure 20 Connection diagram of the bracket body and the cover plate.

[0046] Figure 21 A-A sectional view of Figure 20

[0047] Wherein: 1-bracket body, 11-second installation groove, 12-waist type avoiding hole, 13-anti-off groove, 14-first installation groove, 15-convex avoiding hole, 16-fixing rib, 2-second spring plate, 21-decorative guard plate attachment surface, 22-waist type hole, 23-clamping rib, 24-screw connection surface, 25-cantilever structure, 3-first spring plate, 31-cantilever boss, 32-fixing wing, 4-cover plate, 41-fixing structure, 42-anti-off block, 5-metal, 51-metal pin. DETAILED DESCRIPTION

[0048] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions, and numerical values set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.​

[0049] like Figures 1-21 As shown: A fixed bracket assembly includes a bracket body 1, the upper end of which is connected to a second spring 2 via a second mounting groove 11. The lower end of the bracket body 1 is provided with a first mounting groove 14, within which two U-shaped clearance holes 15 are provided. The upper U-shaped clearance hole 15 is fixedly connected to a first spring 3 via a fixing rib 16. A cover plate 4 is provided on the front surface of the bracket body 1, and the rear surface of the bracket body 1 is used to connect sheet metal 5. The following details:

[0050] The bracket body 1 has a second mounting groove 11 at its upper end and a first mounting groove 14 at its lower end. The second mounting groove 11 is used to install the second spring 2, and the first mounting groove 14 is used to install the first spring 3. The upper ends of the second mounting groove 11 have chamfered edges on both sides to facilitate the connection and assembly of the second spring 2. The upper surface of the second mounting groove 11 serves as the stop surface for the second spring 2. A waist-shaped clearance hole 12 is provided in the middle of the second mounting groove 11, serving as a clearance hole for the fixing screw. Below the waist-shaped clearance hole 12 is an anti-detachment groove 13. After the second spring 2 is assembled, the retaining rib on the second spring 2 fits precisely within the anti-detachment groove 13 of the bracket body, preventing the second spring 2 from falling off. Preferably, the bracket body 1 is made of PP+GF40 and is injection molded.

[0051] The second spring has an inverted U-shaped structure, including a decorative panel contact surface 21 and a screw connection surface 24. The decorative panel contact surface 21 has a waist-shaped hole 22, and the lower end of the waist-shaped hole 22 has an inwardly inclined locking rib 23, which engages with the anti-detachment groove 13. The bottom end of the screw connection surface 24 is a guide surface, and two rows of outwardly protruding cantilever structures 25 are symmetrically arranged in the center of the screw connection surface 24. The inward inclination angle of the locking rib 23 is 10°, and the depth of the anti-detachment groove 13 is 0.5mm. When the second spring is assembled onto the bracket body 1, this cantilever structure 25 engages precisely with the anti-detachment groove 13 on the bracket body 1. Preferably, the top of the inverted U-shaped structure has a notch, and the thickness of the second mounting groove 11 is the same as the thickness of the notch. The width of the second mounting groove 11 is 0.5mm longer than the width of the second spring 2 on each side to prevent the second spring 2 from wobbling to either side. The cantilever structure 25 has an outward convex angle of 45°, and five circular holes with a diameter of 3mm are provided between the two cantilever structures 25. The distance between the two cantilever structures 25 is 1.6mm. The second spring 2 is made of 65 manganese strip steel with a thickness of 0.4mm. Of course, this application is not limited to this.

[0052] The first reed 3 is a planar structure, and a plurality of cantilever bosses 31 are arranged on the upper and lower sides of the first reed 3 respectively. The two sides of the first reed 3 are provided with fixed wings 32. The periphery of the first reed 3 is limited by the side wall of the first mounting groove 14 and the limiting ribs. The upper surface of the first reed 3 is fixedly connected by the fixed ribs 16 arranged on the two side edges of the convex-shaped avoiding hole 15. The root angle of the cantilever boss 31 is 155 degrees, the head guiding end angle is 140 degrees, the boss plane length is 2 mm, and the boss height is 2 mm. The width of the fixed wing 32 of the first reed 3 is 0.5 mm, the length is 7 mm, and the distance is 18 mm. That is, the lower end of the bracket body 1 is the first reed mounting groove 14, and two convex-shaped avoiding holes 15 are designed in the groove for avoiding metal pins 51 when assembling the bracket assembly. The upper "convex" structure is designed with cantilever type fixed ribs 16 on both sides, and the end of the fixed rib 16 can move slightly left and right. When assembling the first reed 3, the two fixed ribs 16 are pried outward, and the first reed 3 is pressed from top to bottom, and then the fixed rib 16 is loosened, so that the fixed rib 16 is pressed on the fixed wing 32 of the first reed 3. The material of the first reed 3 is 65 manganese strip steel, and the thickness is 0.4 mm. Of course, the present application is not limited thereto.

[0053] A plurality of fixed structures 41 are arranged on the cover plate 4, and the cover plate 4 is connected with the bracket body 1 through the fixed structures 41. A anti-falling block 42 is arranged in the middle of the cover plate 4, and the anti-falling block 42 is a cantilever boss structure. The material of the cover plate is PP+GF40, the basic material thickness is 1.5 mm, and the three fixed structures on the cover plate are preferably SNAP structures for fixing the cover plate. The middle anti-falling block functions to prevent the fixed bracket from falling off after assembly.

[0054] The assembling method of the fixed bracket assembly includes the following steps:

[0055] S1: Align the convex-shaped avoiding hole 15 of the fixed bracket with the two metal pins 51 on the sheet metal 5;

[0056] S2: Assemble along the axis of the metal pin 51, so that the convex-shaped avoiding hole 15 of the fixed bracket assembly passes through the metal pin 51;

[0057] S3: When the rear surface of the fixed bracket assembly and the surface of the sheet metal 5 are attached, press the fixed bracket assembly, so that the outer convex cantilever boss 31 of the first reed 3 on the bracket assembly is clamped into the boss of the metal pin 51;

[0058] S4: After the fixed bracket assembly is assembled on the metal pin 51 of the sheet metal, the cover plate 4 is covered to prevent the bracket assembly from falling off.

[0059] No other tools are used in the entire assembly process of the bracket assembly, and the assembly is convenient and saves assembly time.

[0060] After the whole support is assembled, the decorative plate is assembled, the waist-shaped hole is designed on the decorative plate, the waist-shaped hole on the decorative plate and the waist-shaped hole of the second spring piece on the support assembly are cross-shaped, the fixing screw is just in the center position of the cross-shaped intersection, and even if there is deviation of the support or the decorative plate during the assembling process, the mounting hole will not be blocked, and the fixing screw cannot be assembled.

[0061] Although the present application has been disclosed with examples as above, it is not intended to limit the present application, and any person skilled in the art can make various selections and modifications without departing from the spirit and scope of the present application, and the protection scope of the present application is defined by the claims and equivalent forms thereof.

Claims

1. A fixture assembly comprising: The bracket body (1) is connected with the second spring sheet (2) through the second installation slot (11) at the upper end, and the lower end of the bracket body (1) is provided with the first installation slot (14), two convex-shaped avoiding holes (15) are arranged in the first installation slot (14), the convex-shaped avoiding hole (15) at the upper side is fixedly connected with the first spring sheet (3) through the fixing rib (16), the front surface of the bracket body (1) is provided with the cover plate (4), and the rear surface of the bracket body (1) is used for connecting the metal plate (5); The upper end of the bracket body (1) is provided with the second installation slot (11), the upper end of the second installation slot (11) is provided with a chamfer to facilitate the connection of the second spring sheet (2), and the middle of the second installation slot (11) is provided with a waist-shaped avoiding hole (12); and the lower side of the waist-shaped avoiding hole (12) is provided with the anti-falling groove (13). The second spring sheet (2) is a reverse U-shaped structure, comprising a decorative cover plate fitting surface (21) and a screw connection surface (24), the decorative cover plate fitting surface (21) is provided with a waist-shaped hole (22), the lower end of the waist-shaped hole (22) is provided with an inwardly inclined clamping rib (23), the clamping rib (23) is clamped with the anti-falling groove (13) to prevent the second spring sheet (2) from falling off; the bottom end of the screw connection surface (24) is a guide surface, and two rows of outwardly protruding cantilever structures (25) are symmetrically arranged in the central of the screw connection surface (24). The decorative plate is provided with a waist-shaped hole, and the waist-shaped hole of the decorative plate and the waist-shaped hole (22) of the second spring sheet (2) are cross-shaped. The first spring sheet (3) is a planar structure, a plurality of cantilever bosses (31) are arranged on the upper and lower sides of the first spring sheet (3), respectively, the two sides of the first spring sheet (3) are provided with fixing wings (32), the periphery of the first spring sheet (3) is limited by the side wall of the first installation slot (14) and the limiting rib, and the upper surface of the first spring sheet (3) is fixedly connected through the fixing rib (16) arranged on the two side edges of the convex-shaped avoiding hole (15).

2. The fixed bracket assembly of claim 1, wherein, The top end of the reverse U-shaped structure is provided with an opening, the thickness of the second installation slot (11) is the same as the thickness of the opening; and the width of the second installation slot (11) is 0.5mm longer than the width of the single side of the second spring sheet (2) to prevent the second spring sheet (2) from shaking.

3. The fixed bracket assembly of claim 1, wherein, The angle of the inwardly inclined clamping rib (23) is 10°, and the depth of the anti-falling groove (13) is 0.5mm.

4. The fixed bracket assembly of claim 1, wherein, The outwardly protruding angle of the cantilever structure (25) is 45°, five circular holes with a diameter of 3mm are arranged between the two cantilever structures (25), and the distance between the two cantilever structures (25) is 1.6mm.

5. The fixed bracket assembly of claim 1, wherein, The cover plate (4) is provided with a plurality of fixing structures (41), the cover plate (4) is connected with the bracket body (1) through the fixing structure (41), the middle of the cover plate (4) is provided with an anti-falling block (42), and the anti-falling block (42) is a boss cantilever structure.

6. The fixed bracket assembly of claim 1, wherein, The material of the first reed (3) and the second reed (2) is 65 manganese strip steel, and the thickness is 0.4 mm; the material of the cover plate (4) and the support body (1) is PP+GF40.

7. A method of assembling a mounting assembly according to any one of claims 1-6, characterized in that The method comprises the following steps: S1: align the convex-shaped avoiding hole (15) of the fixing support according to any one of claims 1-6 with the two metal pins (51) on the sheet metal (5); S2: assemble along the axis of the metal pin (51), so that the convex-shaped avoiding hole (15) of the fixing support assembly passes through the metal pin (51); S3: after the rear surface of the fixing support assembly and the surface of the sheet metal (5) are attached, press the fixing support assembly, so that the outer convex cantilever boss (31) of the first reed (3) on the support assembly is clamped into the boss of the metal pin (51); S4: after the fixing support assembly is assembled on the metal pin (51) of the sheet metal, cover the cover plate (4) to prevent the support assembly from falling off.

Citation Information

Patent Citations

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    CN207403561U

  • Metal elastic sheet buckle seat

    CN211252462U