An eccentric structure and a motor vehicle door employing the same
By using the rotation adjustment of the eccentric structure, the problem of aligning the door trim with the dashboard was solved, achieving precise alignment between the trim and the dashboard and improving the vehicle's appearance quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州新泉汽车零部件有限公司
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, it is difficult to precisely align the lines between the door trim and the dashboard, which leads to the accumulation of manufacturing tolerances and causes misalignment, affecting the appearance quality.
An eccentric structure is adopted, including a first fixed component and a second rotating component. The vertical displacement of the fixed component is achieved by rotating the eccentric column, and the height of the decorative component is adjusted to align with the dashboard by combining the elastic deformation of the third elastic element.
This achieves precise alignment between the door trim and the dashboard, eliminating gaps and improving the overall workmanship of the vehicle's exterior.
Smart Images

Figure CN224576570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive interior technology, and more specifically to the positioning of decorative parts on a car door relative to the dashboard. Background Technology
[0002] As cars become increasingly detailed, to better extend the lines of the dashboard to the trim pieces, it's essential to adjust the position of the trim to avoid noticeable misalignment between the left and right front doors and the dashboard. Therefore, precise positional adjustment is crucial. Each component that makes up the door trim and dashboard has manufacturing tolerances, and these tolerances can accumulate during assembly, causing relatively large misalignments between the installed parts. Consumers will notice these gaps when viewing the vehicle, giving the impression of poor workmanship. This adjustment device can neatly resolve these alignment issues, leaving a refined impression of craftsmanship. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of the prior art, particularly the issue of line end consistency, by providing an eccentric structure for adjusting the height of decorative elements and a vehicle door employing this eccentric structure.
[0004] An eccentric structure includes a first fixed component and a second rotating component disposed within the first fixed component. The first fixed component has opposite rotational limiting grooves on its left and right sides. The second rotating component includes a convex circle on one side with an opposite axis A and an eccentric column on the other side with an axis B. The axes A and B are coaxial and are separated from the eccentric column by a non-zero distance d. By rotating the second rotating component clockwise, the eccentric column presses against the upper baffle wall on the first fixed component, thereby achieving an upward vertical displacement of the first fixed component. By rotating the second rotating component counterclockwise, the eccentric column presses against the lower baffle wall on the first fixed component, thereby achieving a downward vertical displacement of the first fixed component. The opposite convex circle on one side of the second rotating component cooperates with the groove on the first fixed component, and the second rotating component will undergo vertical displacement relative to the first fixed component during rotation. These displacements are achieved through elastic deformation by a third elastic element fixed between the first fixed component and the second rotating component.
[0005] The groove of the first fixing component is aligned with the limiting block on the second rotating component.
[0006] The outer edge of the third elastic member passes through the guide groove of the first fixed member, and the inner edge of the third elastic member engages with the circular groove of the second rotating member. At the same time, the first limiting edge of the third elastic member contacts the guide groove of the first fixed member and the limiting block of the first fixed member, effectively ensuring that the third elastic member (52) falls off the first fixed member and the second rotating member.
[0007] The eccentricity distance d = 3mm.
[0008] The second rotating component is integral and includes a seal.
[0009] The elastic deformation of the second rotating component and the limiting convex circle displacement thereon is obtained through the third elastic element.
[0010] The left and right grooves on the fixing component are arranged around the first fixing component at 30° intervals around the axis. The second rotating component rotates clockwise by 30°, 60°, and 90° respectively, and adjusts downward by distances d1=-1mm, d2=-2mm, and d3=-3mm. When it rotates to 90°, the limiting block on the second rotating component contacts the upper stop on the first fixing component to prevent further rotation. When it rotates counterclockwise by 30°, 60°, and 90°, it adjusts upward by distances d1=+1mm, d2=+2mm, and d3=+3mm. When it rotates to 90°, the limiting block on the second rotating component contacts the lower stop on the first fixing component to prevent further rotation.
[0011] When the second rotating component rotates clockwise, the eccentric column presses against the upper baffle of the first fixed component, causing the first fixed component to move downward; when it rotates counterclockwise, the eccentric column presses against the lower baffle of the first fixed component, causing the first fixed component to move upward.
[0012] A vehicle door for a motor vehicle includes: a trim piece having fastening holes, D-type clips, and adjustment holes near an area to be adjusted relative to a dashboard; and a door housing having holes that are equipped to receive fastening screws, the fastening screws and clips connecting the trim piece to the housing, wherein an eccentric structure as described above is fixed in the center of the circular hole of the adjustment hole by fastening welds.
[0013] The vehicle door includes a cover plate.
[0014] The eccentric structure of this utility model can be rotated using tools such as "plaster" or "hexagonal wrench" and its height can be adjusted when the eccentric part is placed in the door trim, thereby making the gap between the door trim and the mating part more uniform and consistent. Attached Figure Description
[0015] The accompanying drawings, which are provided to further understand this application and constitute a part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.
[0016] Figure 1 Alignment view of the connection between the dashboard and door trim; Figure 2A full view of the car door; Figure 3 View of door screw fixing; Figure 4 The view is shown after adjustment and readjustment according to this method; Figure 5 Views showing the disassembly and assembly of the cover plate; Figure 6 This is a front view of an eccentrically rotated structure. Figure 7 This is a rear view of an eccentrically rotated structure. Figure 8 This is a front view of the fixed component; Figure 9 This is a rear view of the fixed component; Figure 10 This is an axial view of the elastic component; Figure 11 A process view of assembling rotating and stationary components; Figure 12 A process view showing the assembly of elastic components with fixed and rotating parts; Figure 13 A three-dimensional view of the eccentric structure after overall assembly; Figure 14 A view showing the eccentric structure positioned on the door shell; Figure 15 A view showing the eccentric structure fixed to the decorative element. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0018] An eccentric structure 5 includes a first fixing component 51 and a second rotating component 50 disposed in the first fixing component 51. The first fixing component 51 has opposite rotation limiting grooves 513 and 514. The second rotating component 50 includes convex circles 501 and 502 with opposite axes A on one side, and an eccentric column 500 with axis B on the other side. Axis A and axis B are coaxial and are separated from the eccentric column 500 by a non-zero distance d. By rotating the second rotating component 50 clockwise, its eccentric column 500 presses against the upper baffle 511 on the first fixing component 51. To achieve the upward vertical displacement of the first fixed component 51, the second rotating component 50 is rotated counterclockwise, causing its eccentric column 500 to press against the lower baffle 512 on the first fixed component 51, thereby achieving the downward vertical displacement of the first fixed component 51. The opposite convex circles 501 and 502 on one side of the second rotating component 50 cooperate with the grooves 513 and 514 on the first fixed component 51. During the rotation of the second rotating component 50, it will be vertically displaced relative to the first fixed component 51. These displacements are achieved through elastic deformation by the third elastic element 52 fixed between the first fixed component 51 and the second rotating component 50.
[0019] The groove 5120 of the first fixing component 51 is aligned with the limiting block 505 on the second rotating component 50. The outer edge 520 of the third elastic member 52 passes through the guide groove 5122 of the first fixing component 51, and the inner edge 522 of the third elastic member 52 engages with the circular groove 506 of the second rotating component 50. At the same time, the first limiting edge 521 on the third elastic member 52 contacts the guide groove 5122 of the first fixing component (51) and the limiting block 5123 of the first fixing component 51, effectively ensuring that the third elastic member 52 detaches from the first fixing component 51 and the second rotating component 50. The eccentric distance d = 3mm. The second rotating component 50 is integral and includes a sealing member 507. The elastic deformation of the displacement of the second rotating component 50 and its limiting convex circles 501, 502 is obtained through the third elastic member 52. The grooves 513 and 514 on the fixing component 51 are arranged around the first fixing component at 30° intervals around the axis. The second rotating component rotates clockwise by 30°, 60°, and 90° respectively, and adjusts downward by distances d1=-1mm, d2=-2mm, and d3=-3mm. When it rotates to 90°, the limiting block 505 on the second rotating component 50 contacts the upper stop 518 on the first fixing component 51 to prevent further rotation. When it rotates counterclockwise by 30°, 60°, and 90°, and adjusts upward by distances d1=+1mm, d2=+2mm, and d3=+3mm respectively, when it rotates to 90°, the limiting block 505 on the second rotating component 50 contacts the lower stop 519 on the first fixing component 51 to prevent further rotation. When the second rotating component 50 rotates clockwise, the eccentric column presses against the upper baffle 511 on the first fixed component 51, and the first fixed component 51 moves downward; when it rotates counterclockwise, the eccentric column presses against the lower baffle 512 on the first fixed component 51, and the first fixed component 51 moves upward.
[0020] A vehicle door 4 includes: a trim piece 1 having fastening holes 11, 12, a D-type snap fastener 15, and an adjustment hole 7 near an area to be adjusted relative to a dashboard; a door housing 3 having holes that receive fastening screws 13, 14, which, along with the snap fastener 15, connect the trim piece 1 to the housing 3; and an eccentric structure 5, as described in any of the preceding claims, secured in the center of the circular hole of the adjustment hole 7 by fastening weld points 16, 17, 18. The vehicle door also includes a cover plate 8.
[0021] from Figure 1 As can be seen, when the trim piece 1 is installed on the housing 3 of the door 4 and the door 4 is closed, the lines 20 of the dashboard 2 and the lines 10 of the trim piece 1 are required to always be aligned, but it is difficult to meet the requirements in one go. In this case, the eccentric structure is adjusted by observing the approximate deviation value in the vertical direction so that it is realigned.
[0022] The decorative part 1 is first fixed to the housing 3 by D-type buckles. After adjusting the eccentric structure to achieve complete alignment with the dashboard, the fastening screws are completely locked to the door housing 3. The decorative part 1 includes removing the cover plate 8 and reassembling the cover plate 8 after readjusting the eccentric structure. When the door 4 is closed, the entire eccentric structure and cover plate are located inside the dashboard 1 and are completely invisible, so as not to affect the appearance. The eccentric structure is adjusted clockwise and counterclockwise using a 6mm "cloverleaf" or "hexagonal" tool, and the adjustment process is locked by the limiting structure on the rotating and fixed parts.
Claims
1. An eccentric structure (5), comprising a first fixing component (51) and a second rotating component (50) disposed in the first fixing component (51), characterized in that, The first fixing component (51) has opposite rotation limiting left grooves (513) and right grooves (514). The second rotating component (50) includes convex circles (501, 502) with opposite axes A on one side, and an eccentric column (500) with axis B on the other side. Axis A and axis B are coaxial and are separated from the eccentric column (500) by a non-zero distance d. By rotating the second rotating component (50) clockwise, its eccentric column (500) presses against the upper baffle (511) on the first fixing component (51), thereby realizing the upward vertical displacement of the first fixing component (51). By rotating the second rotating component (50) counterclockwise, the first fixing component (51) can be vertically displaced upward. The rotating component (50) causes its eccentric column (500) to press against the lower baffle (512) on the first fixed component (51), thereby achieving a downward vertical displacement of the first fixed component (51). The opposite convex circles (501, 502) on one side of the second rotating component (50) cooperate with the left groove (513) and right groove (514) on the first fixed component (51). During the rotation of the second rotating component (50), it will be vertically displaced relative to the first fixed component (51). These displacements are achieved by the elastic deformation through the third elastic element (52) fixed between the first fixed component (51) and the second rotating component (50).
2. An eccentric structure as claimed in claim 1, wherein The groove (5120) of the first fixing component (51) is aligned with the limiting block (505) on the second rotating component (50).
3. An eccentric structure as claimed in claim 1, wherein, The outer edge (520) of the third elastic member (52) passes through the guide groove (5122) of the first fixing member (51), and the inner edge (522) of the third elastic member (52) engages with the circular groove (506) of the second rotating member (50). At the same time, the first limiting edge (521) of the third elastic member (52) contacts the guide groove (5122) of the first fixing member (51) and contacts the limiting block (5123) of the first fixing member (51), effectively ensuring that the third elastic member (52) is dislodged from the first fixing member (51) and the second rotating member (50).
4. An eccentric structure as claimed in claim 1, wherein The eccentricity distance d = 3mm.
5. An eccentric structure as claimed in any one of claims 1 and 2, characterized in that The second rotating component (50) is integral and includes a seal (507).
6. An eccentricity according to claim 5, wherein The elastic deformation of the displacement of the second rotating component (50) and the limiting convex circles (501, 502) thereon is obtained by the third elastic element (52).
7. An eccentric structure as claimed in claim 5, wherein The left groove (513) and right groove (514) on the fixed component (51) are arranged around the first fixed component at 30° intervals around the axis. The second rotating component rotates clockwise by 30°, 60° and 90° respectively, and adjusts downward by distances d1=-1mm, d2=-2mm and d3=-3mm. When it rotates to 90°, the limiting block (505) on the second rotating component (50) contacts the upper stop (518) on the first fixed component (51) to prevent further rotation. When it rotates counterclockwise by 30°, 60° and 90°, it adjusts upward by distances d1=+1mm, d2=+2mm and d3=+3mm. When it rotates to 90°, the limiting block (505) on the second rotating component (50) contacts the lower stop (519) on the first fixed component (51) to prevent further rotation.
8. An eccentric structure as claimed in claim 5, wherein, When the second rotating component (50) rotates clockwise, the eccentric column presses against the upper baffle (511) on the first fixed component (51), and the first fixed component (51) moves downward; when it rotates counterclockwise, the eccentric column presses against the lower baffle (512) on the first fixed component (51), and the first fixed component (51) moves upward.
9. A motor vehicle door (4) comprising: A trim piece (1) having fastening holes (11, 12), D-type clips (15), and adjustment holes (7) near the area to be adjusted relative to the dashboard; a door housing (3) having holes equipped with receiving fastening screws (13, 14) and clips (15) connecting the trim piece (1) to the housing (3), characterized in that an eccentric structure (5) as described in any one of the preceding claims is fixed in the middle of the circular hole of the adjustment hole (7) by fastening welds (16, 17, 18).
10. Motor vehicle door (4) according to claim 9, characterized in that The vehicle door includes a cover plate (8).