A structure for facilitating the falling and taking out of a door integrated type steel hinge bolt
By using an integrated steel hinge structure, a limiter and a sealing plate are used to catch fallen bolts, which can then be removed with a magnetic tool. This solves the problem of fallen steel hinge bolts, improves the quality of door opening and closing, enhances design flexibility, and improves the customer experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
- Filing Date
- 2023-03-23
- Publication Date
- 2026-06-23
Smart Images

Figure CN116291084B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive technology, and in particular to a structure that facilitates the removal and detachment of integrated steel hinge bolts in car doors. Background Technology
[0002] Currently, to improve the quality of passenger vehicle door opening and closing, steel-structured hinges are increasingly being used. Compared to stamped sheet metal hinges, steel-structured hinges offer advantages such as high strength and high positioning accuracy, effectively improving door opening and closing quality and enhancing the customer experience. Meanwhile, to address the issue of two mounting bolts being located on the exterior of the vehicle body, occupying significant space and impacting door system layout, ergonomics, and styling, a design has been implemented where bolts are fixed to the door hinges from both the interior and exterior sides of the vehicle body. This solves the aforementioned problem. However, this introduces another issue: fixing bolts through through-holes from the interior of the vehicle can lead to bolts falling into the cavities and becoming impossible to remove, causing rattling noises.
[0003] Currently, in order to improve the quality of car door opening and closing, existing technologies mostly use steel hinges. However, in order to avoid the inconvenience of tightening bolts and the possibility of misoperation when tightening from the inside, the traditional design is often used. Nuts are welded into the cavity of the car body, and bolts are used to fix the hinges from the outside of the car body. This way, the problem of bolts falling into the cavity by accident and being difficult to remove will not occur, and there will be no abnormal noise.
[0004] While existing technologies can improve the quality of door opening and closing and eliminate the possibility of bolts falling into the cavity, the design of fixing the door with bolts on the outside takes up a lot of space and affects the layout of the door system, ergonomics, and styling, which may impact the customer experience. Summary of the Invention
[0005] The technical problem to be solved by this invention is to provide a structure that facilitates the removal and detachment of bolts from integrated steel hinges in car doors, while also solving the problems of space occupation by the two outer bolts and the easy falling and noise caused by bolts fixing on the inner and outer sides of the car body. The invention designs bolt drop-proof plate structures on the upper and lower hinges to catch the bolts after they fall, preventing them from slipping into the deep cavity. At the same time, it allows for easy removal using magnetic tools.
[0006] The technical problem to be solved by the present invention is achieved through the following technical solution:
[0007] A structure for facilitating the removal and retrieval of bolts from integrated steel hinges in car doors includes an outer side panel, an A-pillar reinforcing plate, and an inner A-pillar panel arranged sequentially. A cavity structure exists between the A-pillar reinforcing plate and the inner A-pillar panel. A limiter reinforcing plate is located in the middle of the cavity structure, and an anti-bolt-falling sealing plate is located at the lower end. The inner A-pillar panel has through holes for fixing tools for upper and lower hinge bolts, and an upper retrieval outlet located between the two. The limiter reinforcing plate is positioned opposite to the upper retrieval outlet and is used to catch fallen upper hinge bolts. The anti-bolt-falling sealing plate is positioned opposite to the through hole for fixing tools for lower hinge bolts and is used to catch fallen lower and / or upper hinge bolts.
[0008] Preferably, the upper end of the A-pillar reinforcing plate on the side away from the outer side panel is provided with an upper hinge reinforcing plate, and the lower end is provided with a lower hinge reinforcing plate.
[0009] Preferably, the mounting bolts inside the upper hinge can pass through the upper hinge reinforcing plate, the A-pillar reinforcing plate, and the side panel in sequence, thereby connecting and fixing them to the upper hinge of the car door.
[0010] Preferably, the upper hinge of the car door is also provided with mounting holes, and the upper hinge external mounting bolts can pass through the mounting holes and be fixedly connected to the side panel, the A-pillar reinforcement plate and the upper hinge reinforcement plate.
[0011] Preferably, the mounting bolt inside the lower hinge can pass through the lower hinge reinforcing plate, the A-pillar reinforcing plate, and the side panel in sequence, thereby connecting and fixing it to the lower hinge of the car door.
[0012] Preferably, the lower hinge of the car door is also provided with a mounting hole, and the external mounting bolt of the lower hinge can pass through the mounting hole and be fixedly connected to the outer side panel, the A-pillar reinforcement plate and the lower hinge reinforcement plate.
[0013] Preferably, the bottom surface of the lower hinge reinforcing plate is connected to the bottom surface of the anti-bolt-falling sealing plate, which is used to guide the slipped bolt installed in the lower hinge into the anti-bolt-falling sealing plate.
[0014] Preferably, the outer side panel is made of DC56D+ZF material with a thickness of 0.65mm; the A-pillar reinforcement plate is made of HC340LA material with a thickness of 1.2mm; the inner A-pillar panel is made of HC340LA material with a thickness of 1.2mm. The upper hinge reinforcement plate is made of HC340LA material with a thickness of 1.5mm; the lower hinge reinforcement plate is made of HC340LA material with a thickness of 1.5mm. The limiter reinforcement plate is made of HC340LA material with a thickness of 1.2mm; and the anti-bolt-falling sealing plate is made of B410LA material with a thickness of 1.5mm.
[0015] The above-described technical solution of the present invention has the following beneficial effects:
[0016] (1) Integrated steel hinges can be used, which avoids the problem of insufficient space, improves design flexibility, and reduces costs compared to general steel hinges.
[0017] (2) Solved the problem of bolts being difficult to remove after falling into the cavity and causing abnormal noise;
[0018] (3) Improved the quality of door opening and closing;
[0019] (4) Improved the performance of the cavity structure and enhanced collision safety;
[0020] (5) The structure is relatively simple, the manufacturing cost is low, and it is safe and reliable. Attached Figure Description
[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.
[0022] Figure 1 This is a schematic diagram showing the installation positions of the side A-pillar assembly and the front door hinges.
[0023] Figure 2 This is an exploded view of the side A-pillar assembly and the front door hinges.
[0024] Figure 3 for Figure 1 Sectional view AA at the position of the upper hinge of the front door.
[0025] Figure 4 for Figure 1 Sectional view of the front door upper hinge location (BB section).
[0026] Figure 5 for Figure 1 Cross-sectional view (CC) of the upper hinge position of the front door.
[0027] Figure 6 This is a diagram showing the fixing position of the hinge bolts inside the cavity of the A-pillar.
[0028] The components are: 1. Upper door hinge; 2. Side panel outer panel; 3. Lower door hinge; 4. A-pillar reinforcement plate; 5. Upper hinge reinforcement plate; 6. Limiter reinforcement plate; 7. Lower hinge reinforcement plate; 8. Anti-bolt falling sealing plate; 9. A-pillar inner panel; 10. Upper hinge external mounting bolt; 11. Upper hinge internal mounting bolt; 12. Lower hinge external mounting bolt; 13. Lower hinge internal mounting bolt; 14. Upper hinge internal mounting bolt fixing tool through hole; 15. Lower hinge internal mounting bolt fixing tool through hole; 16. Upper removal outlet. Detailed Implementation
[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the invention.
[0030] like Figures 1-6 As shown, a structure facilitating the removal and detachment of integrated steel hinge bolts in a car door comprises: an outer side panel 2, an A-pillar reinforcing plate 4, an upper hinge reinforcing plate 5, a limiter reinforcing plate 6, a lower hinge reinforcing plate 7, an anti-bolt-falling sealing plate 8, and an inner A-pillar panel 9. Details are as follows:
[0031] A structure for facilitating the removal and retrieval of bolts from integrated steel hinges in car doors includes a side outer panel 2, an A-pillar reinforcing plate 4, and an A-pillar inner panel 9 arranged sequentially. A cavity structure exists between the A-pillar reinforcing plate 4 and the A-pillar inner panel 9. A limiter reinforcing plate 6 is located in the middle of the cavity structure, and an anti-bolt-falling sealing plate 8 is located at the lower end. The A-pillar inner panel 9 has an upper hinge bolt fixing tool through hole 14, a lower hinge bolt fixing tool through hole 15, and an upper retrieval outlet 16 located between them. The limiter reinforcing plate 6 is positioned opposite to the upper retrieval outlet 16 and is used to receive fallen upper hinge bolts 11. The anti-bolt-falling sealing plate 8 is positioned opposite to the lower hinge bolt fixing tool through hole 15 and is used to receive fallen lower hinge bolts 13 and / or upper hinge bolts 11.
[0032] Furthermore, an upper hinge reinforcement plate 5 is provided at the upper end of the side of the A-pillar reinforcement plate 4 away from the side outer panel 2, and a lower hinge reinforcement plate 7 is provided at the lower end.
[0033] like Figure 3 As shown, the upper hinge mounting bolt 11 can pass through the upper hinge reinforcing plate 5, the A-pillar reinforcing plate 4, and the side panel outer plate 2 in sequence, thereby connecting and fixing it to the upper door hinge 1. The upper door hinge 1 is also provided with mounting holes, through which the upper hinge external mounting bolt 10 can pass and be fixedly connected to the side panel outer plate 2, the A-pillar reinforcing plate 4, and the upper hinge reinforcing plate 5. The arrows in the figure indicate the installation direction of the upper hinge internal mounting bolt 11, and the opposite direction indicates the bolt removal direction.
[0034] like Figure 4 As shown, the lower hinge internal mounting bolt 13 can pass sequentially through the lower hinge reinforcement plate 7, the A-pillar reinforcement plate 4, and the side panel outer plate 2, thereby connecting and fixing it to the lower door hinge 3. The lower door hinge 3 is also provided with mounting holes, through which the lower hinge external mounting bolt 12 can pass and be fixedly connected to the side panel outer plate 2, the A-pillar reinforcement plate 4, and the lower hinge reinforcement plate 7. The arrow in the figure indicates the installation direction of the lower hinge internal mounting bolt 13, and the opposite direction indicates the bolt removal direction.
[0035] like Figure 5 As shown, the bottom surface of the lower hinge reinforcing plate 7 is connected to the bottom surface of the anti-bolt-falling sealing plate 8, and is used to guide the slipped lower hinge mounting bolt 13 into the anti-bolt-falling sealing plate 8. The arrow in the figure indicates the direction of movement when the bolt falls.
[0036] Preferably, the outer side panel 2 is made of DC56D+ZF material with a thickness of 0.65mm; the A-pillar reinforcement plate 4 is made of HC340LA material with a thickness of 1.2mm; the inner A-pillar panel 9 is made of HC340LA material with a thickness of 1.2mm. The upper hinge reinforcement plate 5 is made of HC340LA material with a thickness of 1.5mm; the lower hinge reinforcement plate 7 is made of HC340LA material with a thickness of 1.5mm. The limiter reinforcement plate 6 is made of HC340LA material with a thickness of 1.2mm; and the anti-bolt-falling sealing plate 8 is made of B410LA material with a thickness of 1.5mm. Of course, this application is not limited to these specifications.
[0037] This application aims to improve the quality of vehicle door opening and closing by employing an integrated door hinge with built-in internal mounting threads. During installation, the internal mounting bolts may inevitably fall into the A-pillar cavity of the side panel; this structure is designed to facilitate removal. The main usage process is as follows:
[0038] When tightening the bolts inside the upper hinge, if a bolt falls into the cavity of the A-pillar, the limiter reinforcement plate will first catch the falling bolt, which can then be removed using a magnetic tool through the upper extraction port. If the limiter reinforcement plate fails to catch it and the bolt continues to fall downwards, it can be caught by the lower hinge reinforcement plate 7 and the bolt-fall-proof sealing plate 8, and then the bolt can be removed through the lower extraction port. If the bolt inside the lower hinge also falls into the cavity of the A-pillar, it can also be removed through the lower extraction port.
[0039] This application addresses the issues of space occupied by the two outer bolts and the tendency for bolts to fall off and cause noise when fixed on the inner and outer sides of the vehicle body. It designs bolt-fall-off sealing plate structures on the upper and lower hinges to catch the bolts after they fall, preventing them from slipping into the deep cavity. At the same time, it allows for easy removal using magnetic tools.
[0040] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various different choices and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is defined by the claims and their equivalents.
Claims
1. A structure for facilitating the removal and extraction of integrated steel hinge bolts in a car door, comprising a side outer panel (2), an A-pillar reinforcing plate (4), and an A-pillar inner panel (9) arranged sequentially, characterized in that, The A-pillar reinforcing plate (4) and the A-pillar inner plate (9) have a cavity structure. A limiter reinforcing plate (6) is provided in the middle of the cavity structure and a bolt-proof sealing plate (8) is provided at the lower end. The A-pillar inner plate (9) has an upper hinge bolt fixing tool through hole (14), a lower hinge bolt fixing tool through hole (15) and an upper take-out outlet (16) between them. The limiter reinforcing plate (6) and the upper take-out outlet (16) are opposite to each other. The limiter reinforcing plate (6) is used to receive the upper hinge bolt (11) that has fallen. The bolt-proof sealing plate (8) and the lower hinge bolt fixing tool through hole (15) are opposite to each other. The bolt-proof sealing plate (8) is used to receive the lower hinge bolt (13) and / or the upper hinge bolt (11) that has fallen. The upper end of the A-pillar reinforcing plate (4) away from the side panel (2) is provided with an upper hinge reinforcing plate (5), and the lower end is provided with a lower hinge reinforcing plate (7); the bottom surface of the lower hinge reinforcing plate (7) is connected to the bottom surface of the anti-bolt falling sealing plate (8), and is used to guide the slipped lower hinge mounting bolt (13) into the anti-bolt falling sealing plate (8).
2. The structure for facilitating the removal and extraction of integrated steel hinge bolts in car doors according to claim 1, characterized in that, The upper hinge mounting bolt (11) can pass through the upper hinge reinforcing plate (5), the A-pillar reinforcing plate (4) and the side panel (2) in sequence, thereby connecting and fixing with the upper hinge (1) of the car door.
3. The structure for facilitating the removal and extraction of integrated steel hinge bolts in car doors according to claim 2, characterized in that, The upper hinge (1) of the car door is also provided with mounting holes, and the upper hinge external mounting bolt (10) can pass through the mounting holes and be fixedly connected to the side panel (2), the A-pillar reinforcement plate (4) and the upper hinge reinforcement plate (5).
4. The structure for facilitating the removal and extraction of integrated steel hinge bolts in car doors according to claim 1, characterized in that, The mounting bolt (13) inside the lower hinge can pass through the lower hinge reinforcement plate (7), the A-pillar reinforcement plate (4) and the side panel (2) in sequence, thereby connecting and fixing with the lower hinge (3) of the car door.
5. The structure for facilitating the removal and extraction of integrated steel hinge bolts in car doors according to claim 4, characterized in that, The lower hinge (3) of the car door is also provided with mounting holes, and the lower hinge external mounting bolt (12) can pass through the mounting holes and be fixedly connected to the side panel (2), the A-pillar reinforcement plate (4) and the lower hinge reinforcement plate (7).
6. The structure for facilitating the removal and extraction of integrated steel hinge bolts in car doors according to claim 1, characterized in that, The outer side panel (2) is made of DC56D+ZF material with a thickness of 0.65mm; the A-pillar reinforcement plate (4) is made of HC340LA material with a thickness of 1.2mm; the inner A-pillar panel (9) is made of HC340LA material with a thickness of 1.2mm.
7. The structure for facilitating the removal and extraction of integrated steel hinge bolts in car doors according to claim 1, characterized in that, The upper hinge reinforcement plate (5) is made of HC340LA material with a thickness of 1.5mm; the lower hinge reinforcement plate (7) is made of HC340LA material with a thickness of 1.5mm.
8. The structure for facilitating the removal and extraction of integrated steel hinge bolts in car doors according to claim 1, characterized in that, The limiter reinforcement plate (6) is made of HC340LA material with a thickness of 1.2mm; the anti-bolt falling sealing plate (8) is made of B410LA material with a thickness of 1.5mm.