Vehicle door sealing structure
The sealing structure for vehicle doors uses a supported trim weatherstrip and protruding garnishes to prevent inward collapse and interference, ensuring effective sealing and appearance by preventing gaps between the front and rear doors.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- AISIN CORP
- Filing Date
- 2022-05-25
- Publication Date
- 2026-05-27
AI Technical Summary
The existing seal structure for the gap between a vehicle's front and rear doors allows the sealing portion to collapse inward, leading to gaps and impaired appearance and sealing performance.
A sealing structure that includes a trim weatherstrip with a concave curve and inward-bending seal portion, supported by the door frame, and center pillar garnishes with protruding portions to prevent inward collapse and interference.
Prevents gaps between the weatherstrip and center pillar garnish, maintaining vehicle appearance and sealing performance by preventing the seal portion from collapsing inward and reducing wear between weatherstrips.
Smart Images

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Abstract
Description
Technical Field
[0006] , ,
[0005]
[0001] The present invention relates to a seal structure for a vehicle door, and more particularly to a seal structure for a gap portion between a front door and a rear door.
Background Art
[0002] In a seal structure of a vehicle door, a weather strip seals the periphery of an opening of a vehicle body where a door, a glass, or a trunk is provided. Also, in a seal structure of a vehicle door, there is a case where a weather strip seals a gap portion between a front door and a rear door (for example, Patent Document 1). Note that the gap portion between the front door and the rear door is a gap portion at the boundary between the front door and the rear door. <e000010>
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] By the way, a weather strip (hereinafter, a gap weather strip) for sealing the gap portion between the front door and the rear door described above is generally provided at the front end portion in the vehicle front-rear direction of a rear side center pillar garnish provided on the rear door, and has a curved portion that curves from the inner side to the outer side in the vehicle width direction along the front end portion of the rear side center pillar garnish, and a seal portion that bends inward from the outer end portion of the curved portion to seal the gap portion.
[0005] In the gap weather strip having the above configuration, when the front door is closed, the seal portion falls inward, and a gap may occur between the gap weather strip and the center pillar garnish of the rear door, which may impair the appearance of the vehicle and the sealing performance of the vehicle interior.
[0006] Therefore, the present invention aims to provide a vehicle door sealing structure that can suppress the collapse of the sealing portion of the weatherstrip and prevent a gap from forming between the weatherstrip and the center pillar garnish of the rear door. [Means for solving the problem]
[0007] The vehicle door sealing structure according to the present invention is a sealing structure for the trim portion between the front door and the rear door of a vehicle, comprising: a front-side center pillar garnish provided at the rear end of the front door in the vehicle's longitudinal direction; a rear-side center pillar garnish provided at the front end of the rear door in the vehicle's longitudinal direction; and a trim weatherstrip provided between the front-side center pillar garnish and the rear-side center pillar garnish to seal the trim portion, wherein the trim weatherstrip is provided along the front end of the rear-side center pillar garnish and has a curved portion that curves concavely from the inside to the outside in the vehicle's width direction; and a sealing portion that bends inward from the outer end of the curved portion and contacts the rear end of the front-side center pillar garnish to seal the trim portion, and the inside of the curved portion is supported by the door frame of the rear door.
[0008] With the above configuration, the curved portion of the weatherstrip is sandwiched between the center pillar garnish of the rear door and the door frame of the rear door, which prevents the sealing portion from collapsing inward when the front door is closed.
[0009] In the vehicle door sealing structure according to the present invention, the rear end of the center pillar garnish provided at the rear end of the front door preferably has a protruding portion that projects inward, and the protruding portion preferably projects inward more than the sealing portion of the trim weatherstrip.
[0010] By using the above configuration, it is possible to prevent the trim door weatherstrip and the front door weatherstrip from interfering with each other and causing wear on each.
[0011] In the vehicle door sealing structure according to the present invention, a front frame molding covering the front door frame is provided at the upper end of the front door window, and a frame molding end cap is provided at the rear end of the front frame molding, and it is preferable that the length in the vehicle width direction of the rear end of the frame molding end cap and the protruding length in the vehicle width direction of the sealing portion of the trim weatherstrip are the same length.
[0012] By using the above configuration, it is possible to prevent the trim door weatherstrip and the front door weatherstrip from interfering with each other and causing wear on each. [Effects of the Invention]
[0013] According to the vehicle door sealing structure of the present invention, it is possible to suppress the tilting of the weatherstrip and prevent a gap from forming between the weatherstrip and the center pillar garnish of the rear door. [Brief explanation of the drawing]
[0014] [Figure 1] This is a side view of a vehicle according to the embodiment. [Figure 2] Figure 1, section AA shows a vehicle door sealing structure, which is an example of an embodiment. [Figure 3] Figure 1 shows a cross-sectional view of BB illustrating a vehicle door sealing structure, which is another example of the embodiment. [Figure 4] Figure 1 is a cross-sectional view of CC showing a vehicle door sealing structure, which is another example of an embodiment. [Modes for carrying out the invention]
[0015] Hereinafter, an example of an embodiment of the present invention will be described in detail. In the following description, specific shapes, materials, directions, numerical values, etc. are examples for facilitating the understanding of the present invention and can be appropriately changed according to applications, purposes, specifications, etc.
[0016] In a seal structure 11 which is an example of an embodiment, a parting weatherstrip 41 seals a parting portion 15 between the front door 20 and the rear door 30. According to the seal structure 11, although details will be described later, when the front door 20 is closed, it is possible to suppress the seal portion 41C of the parting weatherstrip 41 from falling inward in the vehicle width direction. Thereby, it is possible to prevent a gap from being formed between the parting weatherstrip 41 and the rear side center pillar garnish 34.
[0017] "Vehicle" The vehicle 10 according to the embodiment will be described with reference to FIGS. 1 to 4.
[0018] The vehicle 10 according to the present embodiment is, for example, a four-wheel engine vehicle. However, the vehicle 10 is not limited to an engine vehicle and may be an electric vehicle or a hybrid vehicle. As shown in FIG. 1, the vehicle body 14 of the vehicle 10 has a front door 20 for boarding and alighting from the front seat, a rear door 30 for boarding and alighting from the rear seat, and a center pillar 40 erected between the front door 20 and the rear door 30.
[0019] Hereinafter, the description will be made according to the upper or lower side in the vehicle vertical direction, the inner or outer side in the vehicle width direction, and the front or rear side in the vehicle longitudinal direction as appropriate.
[0020] The front door 20 has a front door body 21, a front door window 22 provided above the front door body 21, and a front door frame 23 as a window frame for supporting the front door window 22. At the rear end portion of the front door window 22, a front side center pillar garnish 24 as a decorative member for covering the center pillar 40 is provided.
[0021] At the upper end of the front door window 22, a front frame molding 25 that covers the front door frame 23 is provided. At the rear end of the front frame molding 25, a frame molding end cap 26 is provided.
[0022] As shown in FIGS. 2 and 3, the rear end portion of the front side center pillar garnish 24 has a protruding portion 24A that is bent inward and protrudes inward. The front side center pillar garnish 24 is fixed to the front door frame 23 by a double-sided tape R.
[0023] As shown in FIGS. 3 and 4, a front door weatherstrip 27 is provided inside the front door 20. The front door weatherstrip 27 seals the vehicle body 14 and the front door 20. The front door weatherstrip 27 is attached to the front door frame 23.
[0024] Again, as shown in FIG. 1, the rear door 30 has a rear door body 31, a rear door window 32 provided above the rear door body 31, and a rear door frame 33 as a window frame that supports the rear door window 32. At the front end of the rear door window 32, a rear side center pillar garnish 34 as a decorative member that covers the center pillar 40 is provided. At the upper end of the rear door window 32, a rear frame molding 35 that covers the rear door frame 33 is provided.
[0025] As shown in FIGS. 2 and 3, the front end portion of the rear side center pillar garnish 34 has a protruding portion 34A that is bent inward and protrudes inward. The rear side center pillar garnish 34 is fixed to the rear door frame 33 by a double-sided tape R.
[0026] As shown in Figures 3 and 4, a rear door weatherstrip 37 is provided on the inside of the rear door 30. The rear door weatherstrip 37 seals the vehicle body 14 and the rear door 30. The rear door weatherstrip 37 is attached to the rear door frame 33.
[0027] Again, as shown in Figure 1, a weatherstrip 41 is provided at the trim section 15 between the front door 20 and the rear door 30. Here, the trim section 15 between the front door 20 and the rear door 30 is the gap at the boundary between the front door 20 and the rear door 30. The details of the sealing structures 11, 12, and 13 of the trim section 15 will be described below.
[0028] "AA cross-section sealing structure" An example of an embodiment, the seal structure 11, will be described using Figure 2.
[0029] The sealing structure 11 is a sealing structure for the portion of the trim section 15 that is covered by the front center pillar garnish 24 and the rear center pillar garnish 34. As shown in Figure 2, in the sealing structure 11, the trim section 15 is sealed by the trim weatherstrip 41 described above.
[0030] The trim weatherstrip 41 is mainly made of rubber and sponge. The trim weatherstrip 41 is provided at the front end of the rear door 30. More specifically, the trim weatherstrip 41 is provided between the rear center pillar garnish 34 and the rear door frame 33 and is fixed to the rear center pillar garnish 34.
[0031] The weatherstrip 41, when viewed from the top and bottom of the vehicle, has a fixed portion 41A, a curved portion 41B, and a sealing portion 41C that are formed in a continuous manner from rear to front, as will be described in detail later. The fixed portion 41A is the part that is fixed to the rear center pillar garnish 34, and is fixed to the rear center pillar garnish 34 by double-sided tape R.
[0032] The curved portion 41B is formed in a C-shape when viewed from the vertical direction of the vehicle, and curves concavely from the inside to the outside, in contact with the protruding portion 34A of the rear center pillar garnish 34 and following the protruding portion 34A. The inside of the curved portion 41B is supported by the rear door frame 33 of the rear door 30. In other words, the curved portion 41B is sandwiched between the rear center pillar garnish 34 and the rear door frame 33.
[0033] As described above, since the curved portion 41B is sandwiched between the rear center pillar garnish 34 and the rear door frame 33, when the front door 20 is closed, the C-shape of the curved portion 41B does not deform to open (the curved portion 41B does not deform to separate from the protruding portion 34A), and the sealing portion 41C is prevented from collapsing inward.
[0034] As a result, it is possible to prevent a gap from forming between the trim weatherstrip 41 and the rear center pillar garnish 34 of the rear door 30, and the appearance of the vehicle 10 and the sealing performance of the passenger compartment are not impaired.
[0035] The sealing portion 41C is formed in an L-shape when viewed from the top and bottom of the vehicle. The shorter side portion 41D of the L-shape is formed along the front-to-rear direction of the vehicle. The longer side portion 41E of the L-shape is formed in an arc shape that extends from the outside to the inside. The front side of the longer side portion 41E abuts against the protruding portion 24A of the front center pillar garnish 24, sealing the gap 15 between the front center pillar garnish 24 of the front door 20 and the rear center pillar garnish 34 of the rear door 30.
[0036] "BB cross-section sealing structure" Using Figure 3, we will describe another example of the embodiment, the seal structure 12.
[0037] The sealing structure 12 is the sealing structure at the upper end of the portion of the trim 15 that is covered by the front center pillar garnish 24 and the rear center pillar garnish 34. In other words, the sealing structure 12 is the upper end of the sealing structure 11 described above.
[0038] As shown in Figure 3, in the seal structure 12, the protruding portion 24A of the front center pillar garnish 24 protrudes inward more than the long side portion 41E of the seal portion 41C. In other words, the length of the protruding portion 24A of the front center pillar garnish 24 in the vehicle width direction is longer than the length of the long side portion 41E of the seal portion 41C in the vehicle width direction. As a result, between the long side portion 41E of the seal portion 41C and the front door weatherstrip 27, the protruding portion 24A of the front center pillar garnish 24 protrudes inward more than the long side portion 41E of the seal portion 41C.
[0039] With the above configuration, the front door weatherstrip 27 and the long side portion 41E of the sealing portion 41C do not interfere with each other. This prevents the front door weatherstrip 27 and the trim weatherstrip 41, which are both made of rubber, from interfering with each other and causing wear.
[0040] "Seal structure of CC cross section" Using Figure 4, we will describe another example of the embodiment, the seal structure 13.
[0041] The sealing structure 13 is a sealing structure for the gap between the front frame molding 25 and the rear frame molding 35 within the trim section 15. In other words, the sealing structure 13 is a sealing structure located above the sealing structure 12 described above.
[0042] As shown in Figure 4, in the seal structure 13, the length of the rear end portion 26A of the frame molding end cap 26 in the vehicle width direction is the same as the protruding length in the vehicle width direction of the long side portion 41E of the sealing portion 41C of the trim weatherstrip 41. As a result, the rear end portion 26A of the frame molding end cap 26 protrudes to the same position in the vehicle width direction as the long side portion 41E of the sealing portion 41C between the long side portion 41E of the sealing portion 41C and the front door weatherstrip 27.
[0043] With the above configuration, the front door weatherstrip 27 and the long side portion 41E of the sealing portion 41C do not interfere with each other. This prevents the front door weatherstrip 27 and the trim weatherstrip 41, which are both made of rubber, from interfering with each other and causing wear.
[0044] It should be noted that the present invention is not limited to the embodiments and their modifications described above, and various changes and improvements are possible within the scope of the claims of this application. [Explanation of Symbols]
[0045] 10 Vehicle, 11 Seal structure, 12 Seal structure, 13 Seal structure, 14 Body, 15 Trim section, 20 Front door, 21 Front door body, 22 Front door window, 23 Front door frame, 24 Front side center pillar garnish, 24A Protruding part, 25 Front frame molding, 26 Frame molding end cap, 26A Rear end, 27 Front door weatherstrip, 30 Rear door, 31 Rear door body, 32 Rear door window, 33 Rear door frame, 34 Rear side center pillar garnish, 34A Protruding part, 35 Rear frame molding, 37 Rear door weatherstrip, 40 Center pillar, 41 Trim weatherstrip, 41A Fixing part, 41B Curved part, 41C Seal part, 41D Short side part, 41E Long side part, R Double-sided tape
Claims
[Claim 1] A sealing structure for the gap between the front door and rear door of a vehicle, A front-side center pillar garnish is provided at the rear end of the front door in the vehicle's longitudinal direction, A rear-side center pillar garnish is provided at the front end of the rear door in the vehicle's longitudinal direction, A weatherstrip is provided between the front center pillar garnish and the rear center pillar garnish to seal the trim portion, The aforementioned weatherstrip is provided along the front end of the rear center pillar garnish and has a curved portion that curves concavely from the inside to the outside in the vehicle width direction, and a sealing portion that bends inward from the outer end of the curved portion and abuts against the rear end of the front center pillar garnish to seal the weatherstrip. The inside of the curved portion is supported by the door frame of the rear door. The outer end of the seal portion protrudes to the same position as the rear center pillar garnish on the outer side in the vehicle width direction. The rear center pillar garnish and the front end of the door frame are approximately the same position. The curved portion is C-shaped and is held in place by contacting only the projection of the rear center pillar garnish and the outer surface of the door frame in the vehicle width direction. The rear center pillar garnish has a fixing portion that extends from the curved portion toward the rear of the vehicle, facing and parallel to the inner surface of the vehicle width. Vehicle door sealing structure.