Door hinge forge piece with torsion structure

By designing a torsion structure door hinge forging, the problem of insufficient structural strength of automotive door hinges was solved, enabling stable opening of the door in three dimensions and improving passenger safety, while enhancing the structural strength and rotational performance of the door hinge.

CN223991675UActive Publication Date: 2026-03-13RUIAN RUIJU FORGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing automotive door hinge structure is not strong enough to meet the guiding adaptability requirements of scissor doors in three-dimensional opening, affecting the stability of the door and passenger safety.

Method used

A torsion structure door hinge forging is designed, including a body and a torsion part. The torsion part forms hook-shaped and arch-shaped structures around different directions. It is integrally forged to improve structural strength and rotation radius, and adapt to the oblique opening requirements of the car door.

Benefits of technology

The structural strength and rotation radius of the door hinges have been improved, ensuring that the doors can be used normally under extreme conditions, thus enhancing the stability of the doors and passenger safety.

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Abstract

The utility model belongs to the field of automobiles, and provides a torsion structure door hinge forge piece which comprises a body part and a torsion part. Wherein the torsion part is twisted into a hook shape around a first direction and twisted into an arch shape along a second direction, the first direction is perpendicular to the second direction, and one end of the torsion part in the second direction is connected to the body part.
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Description

Technical Field

[0001] This application belongs to the automotive field, and in particular relates to a torsion structure door hinge forging. Background Technology

[0002] As a crucial component connecting the car door to the vehicle body, the automotive door hinge not only needs to withstand the forces exerted during daily opening and closing but also needs to maintain structural integrity in the event of a collision to protect occupants. Traditional automotive door hinges are mostly made of cast or stamped metal parts, using a simple hinge structure to open and close the door. These designs are typically used for conventional horizontal or vertical opening doors (such as some upward-opening tailgates), but they are unsuitable for scissor doors. This is because these doors generally require the door to open or close along a predetermined trajectory in three dimensions, a function that conventional door hinges lack. Therefore, it is necessary to design door hinge forgings that meet both opening functionality and structural strength requirements, especially under extreme conditions, to ensure door stability and passenger safety. Utility Model Content

[0003] The purpose of this application is to provide a torsion structure door hinge forging to solve the technical problems of insufficient structural strength and insufficient adaptability to door opening and closing guidance in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a torsion structure door hinge forging, comprising:

[0005] Body part;

[0006] The twisting part is twisted into a hook shape around a first direction and into an arch shape along a second direction, the first direction being perpendicular to the second direction, and one end of the twisting part in the second direction is connected to the body part.

[0007] Optionally, the torsion portion is further torsioned into an arch shape along a third direction;

[0008] The third direction is perpendicular to both the first direction and the second direction.

[0009] Optionally, the body portion is a prism with a parallelogram-shaped cross-section;

[0010] The torsion section is connected to the center region of the end face of the body section along the height direction of the body section.

[0011] Optionally, the adjacent sidewalls of the main body are arranged around its own height to form an arc-shaped first rounded corner.

[0012] Optionally, the short side of the body portion is set at an angle to the first direction.

[0013] Optionally, the torsion portion forms an arc-shaped second rounded corner between adjacent sidewalls disposed around the first direction.

[0014] Optionally, the end of the torsion portion away from the body portion is configured as an arc shape.

[0015] The beneficial effects of the torsion structure door hinge forging provided in this application are as follows: Compared with the prior art, in the torsion structure door hinge forging provided in this application, the torsion part is torsionally hook-shaped and arch-shaped around the first direction and the second direction, respectively. Since the hook-shaped and arch-shaped structures can eliminate stress concentration, and since the first direction is also perpendicular to the second direction, the torsion structure door hinge forging provided in this application can not only form a high structural strength, but also form a relatively small rotation radius, which is far superior to the prior art. Attached Figure Description

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

[0017] Figure 1 This is a top view of the torsion structure door hinge forging in the embodiment of this application;

[0018] Figure 2 This is a side view of the torsion structure door hinge forging in the embodiment of this application;

[0019] Figure 3 For along Figure 1 Cross-sectional view of line AA in the middle;

[0020] Figure 4 This is a schematic diagram of the overall structure of the torsion structure door hinge forging in the embodiment of this application.

[0021] In the figure, the reference numerals are as follows: 100, main body; 101, first fillet; 200, twisted part; 201, second fillet. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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 application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] Please refer to the following: Figures 1 to 4 The present application provides a description of a torsion structure door hinge forging. This torsion structure door hinge forging includes a body portion 100 and a torsion portion 200. Wherein:

[0027] The twisting part 200 is twisted into a hook shape around a first direction and into an arch shape along a second direction, with the first direction perpendicular to the second direction. One end of the twisting part 200 in the second direction is connected to the main body part 100. For ease of explanation, the first direction is used as an example in this embodiment. Figure 1 The x-direction is in the middle, and the second direction is attached. Figure 1 Taking the y-direction as an example, further optimization focuses on key parameters. Figure 4 At the connection position between the torsion part 200 and the body part 100, the inner wall of the torsion part 200 forms a hook shape and extends smoothly to the upper edge of the body part 100, and the outer wall of the torsion part 200 forms a hook shape and extends smoothly to the lower edge of the body part 100. Furthermore, a transition arc is provided between the two side walls of the torsion part 200 and the corresponding connection surface of the body part 100 to ensure the connection strength between the torsion part 200 and the body part 100 and improve the impact resistance. Here, the body part 100 and the torsion part 200 are integrally forged.

[0028] According to the structure provided in this embodiment, in the torsion structure door hinge forging provided in this embodiment, the torsion part 200 is twisted into a hook shape and an arch shape around the first direction and the second direction, respectively. Since the hook shape and arch shape can eliminate stress concentration and have a good energy absorption effect, and since the first direction is also perpendicular to the second direction, the torsion structure door hinge forging provided in this embodiment can not only form a high structural strength, but also form a relatively small rotation radius. At the same time, it can also complete the guidance for the oblique opening of the car door, which is far superior to the prior art.

[0029] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The torsion portion 200 is also torsioned into an arch shape along a third direction; the third direction is perpendicular to the first direction and the second direction respectively. For ease of explanation, the third direction is used as an example in this embodiment. Figure 2 Taking the z-direction as an example, according to the structure provided in this embodiment, the arched shape formed by the torsion portion 200 around the third direction torsion is beneficial to further improve the structural strength of the torsion structure door hinge forging in this embodiment.

[0030] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The main body 100 is a prism with a parallelogram-shaped cross-section; the torsion part 200 is connected to the center region of the end face of the main body 100 along the height direction of the main body 100. According to the structure provided in this embodiment, the center of gravity of the main body, which is set as a prism with a parallelogram-shaped cross-section, coincides with its own geometric center. In this way, the torsion part 200 connected to the center of the end face of the main body 100 can form a more stable connection with the main body 100, which is beneficial to further improve the structural strength of the torsion structure door hinge forging in this embodiment.

[0031] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The main body 100 forms an arc-shaped first rounded corner 101 between adjacent sidewalls arranged around its own height direction. According to the structure provided in this embodiment, the first rounded corner 101 formed on the main body 100 not only helps to improve the structural strength of the torsion structure door hinge forging in this embodiment, but also allows the main body 100 to better avoid mechanical interference with other structures in the second direction, thus having a good performance effect.

[0032] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4The short side of the body portion 100 is set at an angle to the first direction. For ease of explanation, this embodiment uses an angle c between the short side of the body portion 100 and the first direction as an example; more specifically, angle c is set to 12°. According to the structure provided in this embodiment, the structure design of the body portion 100 is beneficial to further improve the structural strength of the torsion structure door hinge forging in this embodiment and is suitable for installation and connection with the object.

[0033] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The torsion portion 200 forms an arc-shaped second rounded corner 201 between adjacent sidewalls arranged around the first direction. According to the structure provided in this embodiment, the second rounded corner 201 formed on the torsion portion 200 not only helps to improve the structural strength of the torsion structure door hinge forging in this embodiment and reduce the amount of raw materials used, but also allows the torsion portion 200 to better avoid mechanical interference with other structures, thus having a good performance effect.

[0034] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 Please refer to the following: Figure 4 The end of the torsion portion 200 away from the main body portion 100 is configured as an arc. According to the structure provided in this embodiment, the arched end of the torsion portion 200 is beneficial to further improve the structural strength of the torsion structure door hinge forging in this embodiment.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A twist structure door hinge forging, characterized by, Comprise: a body part (100); a twisted part (200) twisted into a hook shape in a first direction and into an arch shape in a second direction, the first direction being perpendicular to the second direction, one end of the twisted part (200) in the second direction being connected to the body part (100); the twisted part (200) is also twisted into an arch shape in a third direction; the third direction is perpendicular to the first direction and the second direction respectively; the body part (100) is a column with a parallelogram cross section; the twisted part (200) is connected to the end face center area of the body part (100) in the height direction of the body part (100).

2. The twisted structure door hinge forging of claim 1, wherein: the body part (100) forms an arc-shaped first fillet (101) between adjacent side walls arranged in the height direction of the body part (100).

3. The twisted structure door hinge forging of claim 1 or 2, wherein: the short side of the body part (100) is arranged at an angle with the first direction.

4. The twisted structure door hinge forging of claim 1, wherein: the twisted part (200) forms an arc-shaped second fillet (201) between adjacent side walls arranged in the first direction.

5. The twisted structure door hinge forging of claim 1, wherein: one end of the twisted part (200) away from the body part (100) is arranged in an arc shape.