Hinge rail structure in a B-pillar-free sliding door of a vehicle

By setting upper and lower guide wheels in the hinge guide rail structure of the pillarless sliding door of a car and adjusting the position of the load-bearing surface of the middle guide rail, the hinge wobbling problem is solved, and the stability and safety of the door are improved.

CN223593983UActive Publication Date: 2025-11-25CHONGQING KAI AN ELECTRICAL MFG CO LTD
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Patent Information

Application Number
CN202423176699.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-11-25
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

After the upper guide rail is removed from the doors of traditional MPVs, the amount of swing of the hinges in the guide rail increases, which affects the stability of the doors and poses a safety hazard.

Method used

Design a hinge guide rail structure for a pillarless sliding door for automobiles. The middle hinge is equipped with an upper guide wheel and a lower guide wheel, with the load-bearing wheel located in the middle. The upper guide wheel assembly and the lower guide wheel assembly slide in cooperation with the middle guide rail to adjust the position of the load-bearing surface of the middle guide rail to reduce the amount of hinge sway.

Benefits of technology

It effectively reduces the swaying of the central hinge in the central guide rail, improves the stability of the door, and solves the safety hazards caused by hinge swaying in traditional designs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223593983U_ABST
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Abstract

The utility model relates to an automobile part, concretely relates to a kind of hinge guide rail structure in automobile B-columnless sliding door;Including hinge and middle guide rail, the hinge one end is used to connect door support, the hinge other end sliding is in the middle guide rail, be equipped with upper guide pulley assembly, lower guide pulley assembly and load wheel on the hinge, the load wheel is located middle position, the upper guide pulley assembly is equipped with the load wheel above, the lower guide pulley assembly is equipped with the load wheel below, the hinge is slidable with the middle guide rail by the upper guide pulley assembly, the lower guide pulley assembly, the load wheel;A kind of hinge guide rail structure in automobile B-columnless sliding door with the structure of the scheme has the advantages of stable structure, swing amount.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of parts of automobile, specifically to a kind of hinge guide rail structure in automobile B-columnless sliding door. BACKGROUND

[0002] With the passage of time, the development speed of society is changing rapidly. Cars have also become an indispensable means of transport for people, and with development, consumers are also more concerned about the quality of cars, especially the quality of high-end business cars.

[0003] The main form of the common MPV in the market is a three-point structure, i.e., an upper, middle and lower hinge guide rail structure. This fixed installation form leads to a relatively single design, especially under the impact of the design of new energy vehicles today, it is difficult for traditional MPVs to break through in design. After the upper guide rail is removed, the door may shake during opening and closing, which may cause safety hazards and other problems.

[0004] According to the movement state of the three-point door, the swing amount of the hinge in the guide rail will increase after the upper guide rail is removed, which may affect the stability of the door. To solve this problem, the hinge is changed. SUMMARY

[0005] The utility model aims to break through in the design of cars, to realize the stability of the door after removing the upper guide rail, to reduce the swing amount of the hinge in the guide rail, and to provide a hinge guide rail structure for a B-columnless sliding door of a car.

[0006] The hinge guide rail structure for a B-columnless sliding door of a car in the present application comprises a middle hinge and a middle guide rail. One end of the middle hinge is connected to a door support, and the other end of the middle hinge is slidably arranged in the middle guide rail. An upper guide roller assembly, a lower guide roller assembly and a load wheel are arranged on the middle hinge. The load wheel is arranged in the middle. The upper guide roller assembly is arranged above the load wheel, and the lower guide roller assembly is arranged below the load wheel. The middle hinge is slidably connected to the middle guide rail through the upper guide roller assembly, the lower guide roller assembly and the load wheel.

[0007] Further, the middle hinge comprises a connecting plate and a bearing support arranged at one end of the connecting plate. The upper guide roller assembly, the lower guide roller assembly and the load wheel are arranged at the other end of the connecting plate.

[0008] Further, the upper guide roller assembly comprises an upper guide roller support and at least one upper guide wheel. One end of the upper guide roller support is connected to the connecting plate. The other end of the upper guide roller support is upwardly provided with the horizontally rotating upper guide wheel. A pull wire column is downwardly arranged in the middle of the upper guide roller support.

[0009] Further, the lower guide wheel assembly comprises a lower guide wheel support and at least one lower guide wheel, the lower guide wheel support is rotatably arranged on the top of the connecting plate, and the lower guide wheel support is provided with the horizontally rotatable lower guide wheel at the bottom.

[0010] Further, the load bearing wheel is vertically arranged on the lower guide wheel support.

[0011] Further, the middle guide rail is a groove structure with one end being open, comprising a guide rail side wall, the guide rail side wall is provided with an upper guide wheel groove at the top, the guide rail side wall is provided with a lower guide wheel groove at the top, and the guide rail side wall is provided with a load bearing platform; the upper guide wheel assembly is slidably arranged in the upper guide wheel groove, the lower guide wheel assembly is slidably arranged in the lower guide wheel groove, and the load bearing wheel is slidably arranged on the load bearing platform.

[0012] Further, the upper guide wheel groove is integrally formed on the guide rail side wall, the lower guide wheel groove is integrally formed on the guide rail side wall, and the load bearing platform is a horizontal plane formed by inwardly bending the middle part of the guide rail side wall.

[0013] Further, the upper guide wheel support is integrally formed on the connecting plate, and the number of the upper guide wheels is two.

[0014] Further, the number of the lower guide wheels is two.

[0015] Further, the guide wheel support is rotatably arranged on the connecting plate through a pin shaft, and the load bearing wheel is also rotatably arranged on the pin shaft.

[0016] The advantages of the utility model are that a group of upper guide wheels and lower guide wheels are arranged above and below the load bearing wheel of the middle hinge, the problem of the middle hinge shaking in the middle guide rail is effectively solved according to the scheme, and the swinging amount of the middle hinge in the middle guide rail is reduced. According to the shape of the middle hinge, the middle guide rail is adjusted, compared with the traditional middle guide rail, the position of the changed middle guide rail on the original load bearing surface is moved upward, so that a guide groove position is left below the load bearing surface, and the overall middle guide rail opening is larger than the traditional middle guide rail. ACCURACY OF DRAWINGS

[0017] Figure 1 It is a schematic view of the utility model of a car B columnless sliding door middle hinge guide rail structure.

[0018] Figure 2 It is a perspective view of the middle hinge in the utility model.

[0019] Figure 3 It is another perspective view of the middle hinge in the utility model.

[0020] Figure 4 It is a middle guide rail sectional view in the utility model.

[0021] The reference signs in the drawing include: middle hinge 100, connecting plate 101, bearing support 102;

[0022] Middle guide rail 110, guide rail side wall 111, upper guide wheel groove 113, lower guide wheel groove 112, load bearing platform 114;

[0023] Vehicle door support 130;

[0024] Upper guide wheel assembly 150, upper guide wheel support 151, upper guide wheel 152;

[0025] Lower guide wheel assembly 140, lower guide wheel support 141, lower guide wheel 142, stay post 143, pin shaft 153;

[0026] Load bearing wheel 160. DETAILED DESCRIPTION

[0027] The utility model will be further explained in detail below in combination with the drawings and specific embodiments:

[0028] According to Figures 1 to 4 The utility model discloses a middle hinge guide rail structure of automobile B -columnless sliding door, including middle hinge 100 and middle guide rail 110, one end of the middle hinge 100 is used for connecting vehicle door support 130, the other end of the middle hinge 100 is arranged in the middle guide rail 110 and is slid, be equipped with upper guide wheel assembly 150, lower guide wheel assembly 140 and load bearing wheel 160 on the middle hinge 100, the load bearing wheel 160 is located in the middle position, the upper guide wheel assembly 150 is arranged in the load bearing wheel 160 upper, the lower guide wheel assembly 140 is arranged in the load bearing wheel 160 below, the middle hinge 100 is slid with the middle guide rail 110 through the upper guide wheel assembly 150, the lower guide wheel assembly 140, the load bearing wheel 160.

[0029] Specifically Figure 2 In the embodiment, the middle hinge 100 includes a connecting plate 101 and a bearing support 102 integrally formed at one end of the connecting plate 101. The bearing support 102 is hingedly connected to the vehicle door support 130 through a rotating shaft, and the vehicle door support 130 is bolted and fixedly installed on the vehicle door. The other end of the connecting plate 101 is sequentially provided from top to bottom with the upper guide wheel assembly 150, the load bearing wheel 160, and the lower guide wheel assembly 140.

[0030] Specifically Figure 2 The upper guide wheel assembly 150 includes an upper guide wheel support 151 and at least one upper guide wheel 152. One end of the upper guide wheel support 151 is connected to the connecting plate 101, and the other end of the upper guide wheel support 151 is provided with the horizontally rotating upper guide wheel 152 on its upper surface. In the embodiment, the upper guide wheel support 151 is integrally formed with the connecting plate 101, and the number of upper guide wheels 152 is two.

[0031] Specifically, see Figure 2 , the lower guide wheel assembly 140 includes a lower guide wheel bracket 141 and at least one lower guide wheel 142, the top of the lower guide wheel bracket 141 is rotatably arranged on the connecting plate 101, and the lower surface of the bottom of the lower guide wheel bracket 141 is provided with the horizontally rotating lower guide wheel 142. In this embodiment, the number of lower guide wheels 142 is 2. The upper surface of the middle part of the lower guide wheel bracket 141 is vertically riveted with a guyed column 143, which is used to fix the connection of the guyed line.

[0032] A set of guide wheels, i.e. two upper guide wheels and two lower guide wheels, are arranged above and below the load wheel on the middle hinge, and according to such a scheme, the problem of the middle hinge shaking in the middle rail can be effectively solved, and the amount of swing of the middle hinge in the middle rail is reduced.

[0033] See Figure 2 As a further improvement of this embodiment, the load wheel 160 is vertically arranged on the lower guide wheel bracket 141.

[0034] See Figure 4 As a further improvement of this embodiment, the middle rail 110 is a slot type structure with one end open, including a rail side wall 111, the top of the rail side wall 111 is provided with an upper guide wheel groove 113, the top of the rail side wall 111 is provided with a lower guide wheel groove 112, and the rail side wall 111 is provided with a load bearing platform 114; the upper guide wheel assembly 150 is slidably arranged in the upper guide wheel groove 113, the lower guide wheel assembly 140 is slidably arranged in the lower guide wheel groove 112, and the load wheel 160 is slidably arranged on the load bearing platform 114.

[0035] See Figure 4 , wherein the upper guide wheel groove 113 is integrally formed on the rail side wall 111, the lower guide wheel groove 112 is integrally formed on the rail side wall 111, and the load bearing platform 114 is a horizontal surface bent inward in the middle of the rail side wall 111.

[0036] According to the shape of the middle hinge, the middle rail is adjusted, compared with the traditional middle rail, the position of the changed middle rail on the original load bearing surface is moved upward, so that a guide groove position is left below the load bearing surface, and the overall middle rail opening is larger than the traditional middle rail.

[0037] See Figure 2 and 3 As a further improvement of this embodiment, the guide wheel bracket 151 is rotatably arranged on the connecting plate 101 through the pin shaft 153, and the load wheel 160 is also rotatably arranged on the pin shaft 153. The guide wheel bracket 151 and the load wheel 160 share the pin shaft 153.

[0038] The above is only the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application.

Claims

1. A hinge rail structure in a B-pillar-free sliding door of an automobile, comprising a middle hinge (100) and a middle rail (110), one end of the middle hinge (100) being applied to connect a door support (130), and the other end of the middle hinge (100) being slidably arranged in the middle rail (110), characterized in that: The middle hinge (100) is provided with an upper guide roller assembly (150), a lower guide roller assembly (140) and a load wheel (160), the load wheel (160) is arranged in the middle, the upper guide roller assembly (150) is arranged above the load wheel (160), the lower guide roller assembly (140) is arranged below the load wheel (160), and the middle hinge (100) is slidably connected with the middle guide rail (110) through the upper guide roller assembly (150), the lower guide roller assembly (140) and the load wheel (160).

2. The hinge rail structure for a B-pillar-less sliding door of an automobile according to claim 1, characterized in that: The middle hinge (100) comprises a connecting plate (101) and a bearing support (102) arranged at one end of the connecting plate (101), and the other end of the connecting plate (101) is provided with the upper guide roller assembly (150), the lower guide roller assembly (140) and the load wheel (160).

3. The hinge rail structure of a B-pillar-less sliding door of an automobile according to claim 2, characterized in that: The upper guide roller assembly (150) comprises an upper guide roller support (151) and at least one upper guide roller (152), one end of the upper guide roller support (151) is connected with the connecting plate (101), and the other end of the upper guide roller support (151) is provided with the horizontally rotating upper guide roller (152) upward.

4. The hinge rail structure for a B-pillar-less sliding door of an automobile according to claim 2 or 3, characterized in that: The lower guide roller assembly (140) comprises a lower guide roller support (141) and at least one lower guide roller (142), the lower guide roller support (141) is rotatably arranged at the top of the connecting plate (101), and the lower guide roller support (141) is provided with the horizontally rotating lower guide roller (142) downward at the bottom.

5. The hinge rail structure of a B-pillar-less sliding door of an automobile according to claim 4, characterized in that: The load wheel (160) is vertically arranged on the lower guide roller support (141).

6. The hinge rail structure for a B-pillar-less sliding door of an automobile according to claim 1, characterized in that: The middle guide rail (110) is a groove structure with one end opening, comprising a guide rail side wall (111), the guide rail side wall (111) is provided with an upper guide roller groove (113) at the top, the guide rail side wall (111) is provided with a lower guide roller groove (112) at the top, and the guide rail side wall (111) is provided with a load platform (114); the upper guide roller assembly (150) is slidably arranged in the upper guide roller groove (113), the lower guide roller assembly (140) is slidably arranged in the lower guide roller groove (112), and the load wheel (160) is slidably arranged on the load platform (114).

7. The hinge rail structure of a B-pillar-less sliding door of an automobile according to claim 6, characterized in that: The upper guide roller groove (113) is integrally formed on the guide rail side wall (111), the lower guide roller groove (112) is integrally formed on the guide rail side wall (111), and the load platform (114) is a horizontal plane formed by inwardly bending the middle part of the guide rail side wall (111).

8. The hinge rail structure of a B-pillar-less sliding door of an automobile according to claim 3, characterized in that: The upper guide roller support (151) is integrally formed on the connecting plate (101), and the number of the upper guide roller (152) is two.

9. The hinge rail structure of a B-pillar-less sliding door of an automobile according to claim 4, characterized in that: The number of the lower guide roller (142) is two.

10. The hinge rail structure of a B-pillar-less sliding door of an automobile according to claim 5, characterized in that: The guide roller support (151) is rotatably arranged on the connecting plate (101) through a pin shaft (153), and the load wheel (160) is also rotatably arranged on the pin shaft (153).