Forging a door hinge

Abstract

The utility model relates to hinge technical field especially relates to a kind of forging vehicle door hinge, including car body page and door page, the car body page and door page are connected by pin shaft, the car body page includes support plate and connecting column, the support plate is connected with the connecting column, the connecting column is provided with curved surface limiting portion, the door page includes mounting plate and rotary connecting portion, the rotary connecting portion is located and is close to the side of car body page and is provided with arc portion, the arc portion is matched with the curved surface limiting portion and is used to limit door opening angle.The utility model provides a kind of forging vehicle door hinge, can accurately limit door opening, satisfy small offset requirement, effectively improve the performance of anti-sinking, enhanced strength, durability and safety performance.At the same time, it also simplifies processing technology, achieves lightweight target and efficient manufacturing.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a forged car door hinge. Background Technology

[0002] With the continuous improvement of the automation and intelligence level of domestic automobiles, the requirements for vehicle safety performance and body structure design are becoming increasingly stringent, and the limitations of traditional door hinge technology have gradually become apparent. Currently widely used steel hinges and stamped hinges generally suffer from insufficient structural strength, especially prone to door sagging after long-term use. Furthermore, limited by materials and forming processes, it is difficult to effectively improve load-bearing capacity through structural reinforcement. More importantly, due to the inherent structural and cross-sectional shape limitations of steel hinges, they perform poorly in side collisions, especially small offset collisions: the limiting part of the door hinge area (such as...) Figure 6 During a collision, the hinge is the first to be subjected to force, which can easily lead to the shearing of the pivot pin, causing the hinge to fail and resulting in the door opening or even intrusion into the passenger compartment, seriously threatening the safety of the occupants. Therefore, the existing hinge structure can hardly meet the increasingly stringent collision safety regulations, and there is an urgent need for a new door hinge solution with higher strength, better impact resistance and a better structural design. Utility Model Content

[0003] In view of the above-mentioned shortcomings of current car door hinges, this utility model provides a forged car door hinge that can solve at least one of the problems. This utility model provides a forged car door hinge that can accurately limit the opening of the car door, meet the requirements of small offset collisions, and improve the stability and safety of use.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0005] A forged car door hinge includes a body panel and a door panel, which are connected by a pin. The body panel includes a support plate and a connecting post, the support plate being connected to the connecting post. A curved limiting portion is provided on the connecting post. The door panel includes a mounting plate and a rotating connecting portion. The rotating connecting portion has an arcuate portion on the side near the body panel, which engages with the curved limiting portion and is used to limit the door opening angle.

[0006] According to one aspect of this utility model, the vehicle body panel is provided with a reinforcing rib, which is connected to the support plate and the connecting column.

[0007] According to one aspect of this utility model, a locking bolt is provided at one end of the pin.

[0008] According to one aspect of the present invention, a bushing is fitted on the pin, and a gasket is provided at the end of the bushing.

[0009] According to one aspect of the present invention, the curved surface limiting portion includes a first arc portion, a second arc portion and a third arc portion, wherein the two ends of the second arc portion are connected to the first arc portion and the third arc portion.

[0010] According to one aspect of the present invention, the arcuate portion includes a first arcuate end face, an arcuate surface, and a second arcuate end face. The two sides of the arcuate surface are connected to the first arcuate end face and the second arcuate end face. The first arcuate end face contacts the first arcuate portion to limit the maximum opening angle of the door.

[0011] According to one aspect of the present invention, the mounting plate is provided with a recessed portion, which is disposed on the bottom surface of the mounting plate.

[0012] According to one aspect of this utility model, the depth of the recessed portion is 0.5 mm.

[0013] According to one aspect of the present invention, the mounting plate has a groove on its side.

[0014] According to one aspect of this utility model, the door panel and the body panel are formed by a forging process.

[0015] The advantages of this utility model are as follows: The arc portion and the curved surface limiting portion are connected to limit the opening angle of the car door while meeting the requirements for small offset collisions. When the car door is fully opened and the two parts come into contact, the first arc portion can prevent the car door from continuing to rotate outward, avoiding damage to the car door or hinge due to excessive opening, thus achieving the limiting effect. By designing the curved surface limiting portion as an irregular curved surface, the opening and closing process of the car door can be smoother and more natural, bringing a better user experience. The setting of reinforcing ribs can significantly improve the rigidity and strength of the hinge structure, effectively reducing the deformation of the car body leaf caused by the weight of the car door, preventing the car door from sinking, and meeting the sinking requirements. The groove setting can prevent the locking bolt from interfering with the car door leaf during the connection and locking process between the car door leaf and the car body. The car body leaf and the car door leaf are forged and formed, which can add reinforcing ribs to increase strength and reduce machining processes, thereby achieving material saving and efficiency improvement. The sinking part setting makes the flatness of the car door leaf mounting surface better, the installation matching effect better, and the aesthetics improved. This utility model provides a forged car door hinge that can precisely limit the opening angle of the car door, meet the requirements for minor offset collisions, effectively improve anti-sinking performance, and enhance strength, durability, and safety performance. At the same time, it simplifies the processing technology, achieving lightweighting and efficient manufacturing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of a forged car door hinge according to the present invention.

[0018] Figure 2 This is a first-view structural diagram of a forged car door hinge according to the present invention.

[0019] Figure 3 This is a second-view structural diagram of a forged car door hinge according to the present invention.

[0020] Figure 4 This is a first-view structural diagram of a forged car door hinge according to the present invention.

[0021] Figure 5 This is a first-view structural diagram of a forged car door hinge according to the present invention.

[0022] Figure 6 This is a schematic diagram of a conventional automotive hinge structure.

[0023] The names corresponding to the serial numbers in the diagram are as follows:

[0024] 1. Body panel; 11. Support plate; 12. Connecting column; 13. Reinforcing rib; 14. Curved limiting part; 141. First arc part; 142. Second arc part; 143. Third arc part; 15. Mounting hole; 2. Door panel; 21. Screw hole; 22. Mounting plate; 23. Rotary connection part; 24. Recessed part; 25. Groove part; 26. Arc part; 261. First arc end face; 262. Arc surface; 263. Second arc end face; 3. Pin; 4. Bushing; 5. Washer; 6. Locking bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a forged car door hinge includes a body panel 1 and a door panel 2. The body panel 1 is mounted on the vehicle body with screws, and the door panel is fixedly mounted on the car door with screws. The body panel 1 and the door panel 2 are directly formed by forging. The body panel 1 and the door panel 2 are connected by a pin 3, one end of which is provided with a locking bolt 6. A bushing 4 is fitted on the pin 3, and a washer 5 is provided at the end of the bushing 4. The body panel 1 includes a support plate 11 and a connecting post 12. The support plate 11 is connected to the connecting post 12, and the connecting post 12 is provided with a curved limiting part 14. The door panel 2 includes a mounting plate 22 and a rotating connecting part 23. The rotating connecting part 23 is provided with an arc portion 26 on the side closer to the body panel 1. The arc portion 26 is connected to the curved limiting part 14 and is used to limit the opening angle of the car door, while also meeting the requirements for small offset collisions. The opening angle of the door can be achieved through the cooperation of the arc portion 26 and the curved surface limiting portion 14, thereby achieving a limiting effect. By cooperating with the locking bolt 6 and the pin 3, it can be ensured that the pin 3 is firmly held in the correct position between the door leaf and the body leaf, preventing loosening or falling off due to vibration during vehicle operation or external forces.

[0030] In this embodiment, the support plate 11 is provided with mounting holes 15, and the mounting plate 22 is provided with screw holes 21. The mounting holes 15 and screw holes 21 are used to fix the door panel 2 and the body panel 1 to the door and body of the vehicle by screws.

[0031] In this embodiment, the body panel 1 is provided with reinforcing ribs 13, which are connected to the support plate 11 and the connecting column 12. The reinforcing ribs 13 significantly improve the rigidity and strength of the hinge structure, thereby effectively reducing the deformation of the body panel caused by the weight of the door, thus achieving the goal of door sag and meeting the sag requirement. In the prior art, the body panel is made of hot-rolled profile, and due to process limitations, reinforcing ribs cannot be added, thus further increasing the strength.

[0032] In this embodiment, the curved surface limiting part 14 includes a first arc part 141, a second arc part 142, and a third arc part 143, with both ends of the second arc part 142 connected to the first arc part 141 and the third arc part 143. The curved surface limiting part 14 can be directly forged or machined.

[0033] In this embodiment, the arc portion 26 includes a first arc end face 261, an arc surface 262, and a second arc end face 263. The two sides of the arc surface 262 are connected to the first arc end face 261 and the second arc end face 263. The first arc end face 261 contacts the first arc portion 141 to limit the maximum opening angle of the car door, thereby achieving a limiting effect. The curved surface limiting portion 14 is an irregular curved surface. By setting the irregular curved surface, the opening and closing process can be smoother and more natural, providing users with a better user experience. Through the characteristic shape setting between the arc portion 26 and the curved surface limiting portion 14, when the car door is fully opened, the first arc portion 141 can prevent the car door from continuing to rotate outward when they come into contact, thereby avoiding damage to the car door or hinge due to excessive opening. Due to the outer arc contact structure, the overall length of the car door leaf is reduced, and it can avoid being hit during small offset collisions, satisfying the requirement of not cutting the pin. The arc portion 26 can be directly forged or machined.

[0034] In this embodiment, the mounting plate 22 has a groove 25 on its side. The groove 25 prevents the locking bolt from interfering with the door panel during the locking process between the door panel and the vehicle body.

[0035] The beneficial effects of this embodiment are as follows: the arc portion 26 and the curved surface limiting portion 14 are connected to limit the opening angle of the car door, meeting the requirements for small offset collisions. When the car door is fully opened and the two parts are in contact, the first arc portion 141 can prevent the car door from continuing to rotate outward, avoiding damage to the car door or hinge due to excessive opening, thereby achieving the limiting effect. By designing the curved surface limiting portion 14 as an irregular curved surface, the opening and closing process of the car door can be made smoother and more natural, bringing a better user experience. The setting of reinforcing ribs can significantly improve the rigidity and strength of the hinge structure, effectively reducing the deformation of the car body leaf caused by the weight of the car door, preventing the car door from sinking, and meeting the sinking requirements. The groove portion 25 can prevent the locking bolt from interfering with the car door leaf during the locking process of the car door leaf and the car body. The car body leaf and the car door leaf are formed by forging, which can add reinforcing ribs to increase strength, reduce machining processes, thereby achieving material saving and efficiency improvement. This embodiment provides a forged door hinge that can precisely limit the door opening angle, effectively improve anti-sag performance, and enhance strength, durability, and safety performance. At the same time, it simplifies the manufacturing process, achieving lightweighting and efficient manufacturing.

[0036] Example 2

[0037] The difference between this embodiment and Embodiment 1 is that, in this embodiment, a recessed portion 24 is provided on the mounting plate 22. The recessed portion 24 is located on the bottom surface of the mounting plate 22, that is, the recessed portion 24 is located on the connection surface between the door leaf and the door. The depth of the recessed portion 24 is 0.5mm, which improves the flatness of the door leaf mounting surface.

[0038] The beneficial effects of this embodiment are as follows: by setting the recessed part, the flatness of the door panel mounting surface is better, the installation matching effect is better, and the aesthetics are improved.

[0039] Advantages of this invention: The arc-shaped portion and the curved surface limiting portion are connected to limit the opening angle of the car door, meeting the requirements for small offset collisions. When the car door is fully opened and the two parts come into contact, the first arc-shaped portion prevents the car door from continuing to rotate outward, avoiding damage to the car door or hinge due to excessive opening, thus achieving a limiting effect. By designing the curved surface limiting portion as an irregular curved surface, the opening and closing process of the car door is smoother and more natural, providing a better user experience. The addition of reinforcing ribs can significantly improve the rigidity and strength of the hinge structure, effectively reducing the deformation of the car body panels caused by the weight of the car door, preventing the car door from sagging, and meeting the sagging requirements. The groove design prevents interference between the locking bolts and the car door panel during the locking process between the car door panel and the car body. The car body panel and the car door panel are forged, allowing for the addition of reinforcing ribs to increase strength and reducing machining processes, thereby achieving material savings and efficiency improvement. The sagging portion design improves the flatness of the car door panel mounting surface, resulting in better installation and matching, and enhancing aesthetics. This embodiment provides a forged door hinge that can precisely limit the door opening angle, meet the requirements for small offset collisions, effectively improve anti-sinking performance, and enhance strength, durability, and safety performance. At the same time, it simplifies the manufacturing process, achieving lightweighting and efficient manufacturing.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A forged vehicle door hinge, comprising a body panel (1) and a door panel (2), wherein the body panel (1) and the door panel (2) are connected by a pin (3), characterized in that, The body panel (1) includes a support plate (11) and a connecting column (12). The support plate (11) is connected to the connecting column (12). A curved limiting part (14) is provided on the connecting column (12). The door panel (2) includes a mounting plate (22) and a rotating connecting part (23). The rotating connecting part (23) is provided with an arc part (26) on the side close to the body panel (1). The arc part (26) is connected to the curved limiting part (14) and is used to limit the opening angle of the door.

2. The forged car door hinge according to claim 1, characterized in that, The vehicle body panel (1) is provided with a reinforcing rib (13), which is connected to the support plate (11) and the connecting column (12).

3. The forged car door hinge according to claim 1, characterized in that, A locking bolt (6) is provided at one end of the pin (3).

4. The forged car door hinge according to claim 3, characterized in that, A bushing (4) is fitted on the pin (3), and a gasket (5) is provided at the end of the bushing (4).

5. The forged car door hinge according to claim 1, characterized in that, The curved surface limiting part (14) includes a first arc part (141), a second arc part (142) and a third arc part (143), with the two ends of the second arc part (142) connected to the first arc part (141) and the third arc part (143).

6. The forged door hinge according to claim 5, characterized in that, The arc portion (26) includes a first arc end face (261), an arc surface (262), and a second arc end face (263). The two sides of the arc surface (262) are connected to the first arc end face (261) and the second arc end face (263). The first arc end face (261) contacts the first arc portion (141) to limit the maximum opening angle of the door.

7. The forged car door hinge according to claim 1, characterized in that, The mounting plate (22) is provided with a recessed part (24), which is located on the bottom surface of the mounting plate (22).

8. The forged door hinge according to claim 7, characterized in that, The depth of the sunken portion (24) is 0.5 mm.

9. The forged car door hinge according to claim 1, characterized in that, The mounting plate (22) has a groove (25) on its side.

10. The forged door hinge according to any one of claims 1-8, characterized in that, The door panel (2) and body panel (1) are formed by forging.

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