An upper corner of a B-pillar snap-fit ​​strip

Abstract

This invention provides an upper corner joint for a B-pillar snap-fit ​​strip, comprising a corner joint body. The corner joint body has a first mounting portion for installing a sealing strip, and a second mounting portion arranged opposite to the first mounting portion. The second mounting portion has a limiting opening for engaging with a B-pillar exterior trim panel, allowing the B-pillar exterior trim panel to be snapped onto or disengaged from the second mounting portion through the limiting opening. This invention solves the technical problem of B-pillar exterior trim panels easily loosening after extension.

Description

Technical Field

[0001] This invention relates to the field of frameless car door technology, and more particularly to an upper corner of a B-pillar snap-fit ​​strip. Background Technology

[0002] Sealing strips arranged horizontally and vertically are provided at the upper corner to fix and increase the airtightness of the entire vehicle, thereby improving NVH performance and water management requirements. A glass guide channel corner structure and door, with announcement number CN215321951U, effectively fixes the corner body to the window frame guide rail by setting a limiting structure on the corner body. A seamless corner structure for European-style guide channel sealing strips for car windows, with announcement number CN105437938A, features a seamless connection between the flocked lip of the top sealing strip and the flocked lip of the vertical sealing strip, improving the overall appearance and sealing performance of the European-style guide channel sealing strip for car windows, enhancing the coverage of the window sheet metal lip, eliminating abnormal noise problems generated during window glass raising and lowering, and improving the overall sealing performance of the vehicle. The two patent documents mentioned above utilize a unique structure to improve the sealing performance of the entire vehicle; however, they both have the following problems: the B-pillar exterior trim panel can rise and fall with the glass window. When the B-pillar exterior trim panel is fully extended, its end is suspended in the air, which can easily cause it to loosen and shake when the vehicle is in motion, thus easily producing abnormal noise.

[0003] A Chinese utility model patent document, CN213676575U, describes a corner fixing assembly for a car door frame sealing strip. It utilizes hooks on a fixing plate to prevent the assembly from detaching from the sealing strip after sealing. Another Chinese utility model patent document, CN209600240U, describes a groove structure for a car door glass. It extends the hook at the upper part of the groove corner along the C-pillar window frame direction to the lower part of the groove corner to form a hook extension. This hook extension engages with the outer trim groove of the C-pillar window frame, ensuring that the outer side of the groove corner is tightly fitted to the inner side of the outer trim. This guarantees that after assembly or after glass lifting and lowering durability tests, the groove corner remains fitted to the triangular trim and the C-pillar window frame, preventing positional shifting due to assembly tolerances or glass lifting and lowering. Both of the aforementioned patent documents use hooks to attach to the corresponding accessories in order to fix the accessories. Therefore, when the end of the B-pillar exterior trim panel is in a suspended state, whether it is possible to use accessories similar to hooks to fix the B-pillar exterior trim panel to a certain fastener becomes an urgent problem to be solved. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an upper corner connector for a B-pillar snap-fit ​​strip, which solves the technical problem that the B-pillar exterior trim panel is prone to loosening after being extended.

[0005] According to an embodiment of the present invention, an upper corner of a B-pillar snap-fit ​​strip includes a corner body, the corner body having a first mounting portion for mounting a sealing strip, and a second mounting portion arranged opposite to the first mounting portion. The second mounting portion is provided with a limiting opening, the limiting opening being used for limiting cooperation with a B-pillar exterior trim panel, so that the B-pillar exterior trim panel is snapped onto the second mounting portion or disengaged from the second mounting portion through the limiting opening.

[0006] Preferably, the limiting opening is in the form of a longitudinally extending strip.

[0007] Preferably, the second mounting part is provided with an integral first limiting part and a second limiting part, the first limiting part and the second limiting part extending along the X-axis and Z-axis directions respectively, thereby defining the limiting opening.

[0008] Preferably, one end of the second limiting part is flush with the first limiting part, and the other end extends into the vehicle.

[0009] Preferably, the first limiting part has a first clearance opening arranged along its length on the side facing the limiting opening.

[0010] Preferably, the second limiting portion has a second clearance opening arranged along its length on the side facing the limiting opening.

[0011] Preferably, the first clearance port and the second clearance port are connected.

[0012] Preferably, the length of the first limiting portion is less than the length of the second limiting portion.

[0013] Preferably, the end of the first limiting part away from the second limiting part is provided with an integral fixing part, the fixing part is fixed on the second mounting part and extends towards the first mounting part.

[0014] Preferably, the end of the second limiting portion away from the first limiting portion is provided with an arc-shaped transition portion.

[0015] Compared with the prior art, the present invention has the following advantages: When the B-pillar exterior trim panel is fully extended, its upper end can abut against the second mounting part of the corner body through the limiting port. Since the corner body is fixed to the vehicle body, when the B-pillar exterior trim panel extends into the limiting port, the limiting port can engage with it, thereby supporting and fixing the B-pillar exterior trim panel and preventing the B-pillar exterior trim panel from loosening due to its suspended end. When the B-pillar exterior trim panel is lowered, it can disengage from the limiting port. The limiting port is located inside the vehicle body, which not only facilitates the limiting engagement with the B-pillar exterior trim panel but also does not impede the airtightness of the entire vehicle. It is easy to operate and has a simple structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the upper corner of the B-pillar snap-fit ​​strip in one embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the upper corner of the B-pillar snap-fit ​​strip located inside the vehicle in one embodiment of the present invention;

[0018] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure when the B-pillar exterior trim panel is engaged in the limiting opening in one embodiment of the present invention.

[0020] In the picture:

[0021] 1. Corner body; 100. Limiting opening; 101. First limiting part; 102. Second limiting part; 2. B-pillar exterior trim panel; 3. First clearance opening; 4. Second clearance opening; 5. Fixing part; 6. Transition part. Detailed Implementation

[0022] It should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] The following will be combined with the appendix Figure 1-4 The present invention will be further described below.

[0024] A B-pillar snap-fit ​​strip includes a snap-fit ​​body 1. The snap-fit ​​body 1 has a first mounting portion for installing a sealing strip and a second mounting portion arranged opposite to the first mounting portion. The second mounting portion is provided with a limiting opening 100, which is used to limit and cooperate with the B-pillar exterior trim panel 2, so that the B-pillar exterior trim panel 2 is snapped onto the second mounting portion or disengaged from the second mounting portion through the limiting opening 100.

[0025] In this embodiment, as Figure 1As shown, this embodiment takes the triangular corner body 1 as an example. In other embodiments, the corner body 1 can be an arc structure. The corner body 1 has a first mounting part for installing sealing strips (that is, the window frame is provided with a horizontal guide groove and a vertical guide groove for accommodating glass. The horizontal guide groove and the vertical guide groove are connected and are respectively provided with sealing strips for compensating the gap between the glass and each guide groove. The end of each sealing strip is located at the corner of the window frame and is accommodated on the first mounting part of the corner body 1 to connect the ends of the horizontally and vertically arranged sealing strips). The above can be referred to in relevant patent documents: CN215321951U A glass guide groove corner structure and car door, CN113844245A A frameless car door C-pillar sealing structure. Since this is prior art, it will not be described in detail here; in order to fix the protruding B-pillar outer trim panel 2 to the car body Inside, to prevent loosening; and since the protruding B-pillar exterior trim panel 2 is located on one side of the corner body 1, and the corner body 1 is fixed to the vehicle body, a second mounting part is provided at the opposite position of the first mounting part of the corner body 1. The second mounting part has a limiting opening 100, which can limit and cooperate with the B-pillar exterior trim panel 2, so that the B-pillar exterior trim panel 2 has a snap-fit ​​state that is limited and cooperated with the limiting opening 100 during the rising or falling process, and a disengaged state that is separated from the limiting opening 100. In the snap-fit ​​state, the B-pillar exterior trim panel 2 can be fixed to the corner body 1 to avoid loosening due to the end not being snapped; in the disengaged state, the corner body 1 and the B-pillar exterior trim panel 2 are relatively independent and do not affect their individual use; furthermore, the limiting opening 100 is directly located on the corner body 1, which can reduce the difficulty of production and processing.

[0026] The limiting port 100 is a longitudinally extending strip.

[0027] In this embodiment, since the B-pillar exterior trim panel 2 slides up and down on the vertical plane, in order to cooperate with the B-pillar exterior trim panel 2, the limiting opening 100 is in the form of a longitudinally extending strip so that the B-pillar exterior trim panel 2 can be smoothly locked in the limiting opening 100.

[0028] The second mounting part is provided with an integral first limiting part 101 and a second limiting part 102. The first limiting part 101 and the second limiting part 102 extend along the X-axis and Z-axis directions respectively, and define the limiting opening 100 therebetween.

[0029] In this embodiment, in order to form a limiting opening 100 on the second mounting portion, a first limiting portion 101 and a second limiting portion 102 with an integral structure are provided on the second mounting portion, wherein the first limiting portion 101 is integrally formed with the second mounting portion, such as... Figure 2 , Figure 3As shown, the first limiting part 101 is arranged along the X-axis direction to connect and support the second limiting part 102. The second limiting part 102 is arranged along the Z-axis direction to form an integrally formed hook-shaped structure with the first limiting part 101, so that the B-pillar exterior trim panel 2 can be locked in place after sliding along the Y-axis direction; Figure 4 As shown, since the end of the B-pillar exterior trim panel 2 has a protrusion, the protrusion is used to be locked in the limiting opening 100, and the end of the second limiting part 102 can abut against the end of the B-pillar exterior trim panel 2, thereby playing the role of supporting and fixing the B-pillar exterior trim panel 2.

[0030] One end of the second limiting part 102 is flush with the first limiting part 101, and the other end extends into the vehicle.

[0031] In this embodiment, in order to save space to the greatest extent, one end of the second limiting part 102 is flush with the upper end of the first limiting part 101, and the other end extends into the vehicle. In this way, space can be saved in the horizontal direction and the second limiting part 102 is prevented from abutting against other sheet metal.

[0032] The first limiting part 101 has a first clearance opening 3 arranged along its length direction on the side facing the limiting opening 100.

[0033] In this embodiment, to accommodate the protrusion on the B-pillar exterior trim panel 2, a first clearance opening 3 is provided on the side of the first limiting part 101 facing the limiting opening 100, arranged along its length. Preferably, a second clearance opening 4 is provided on the side of the second limiting part 102 facing the limiting opening 100, arranged along its length. Furthermore, the first clearance opening 3 and the second clearance opening 4 are connected. The first clearance opening 3 and the second clearance opening 4 can increase the contact area between the first limiting part 101, the second limiting part 102 and the protrusion of the B-pillar exterior trim panel 2, thereby securing it within the protrusion through friction. Of course, the first limiting part 101 and the second limiting part 102 can be made of elastic material for better fit with the B-pillar exterior trim panel 2.

[0034] The length of the first limiting part 101 is less than the length of the second limiting part 102.

[0035] In this embodiment, in order to make reasonable use of the space between the corner body 1 and the B-pillar exterior trim panel 2, the length of the first limiting part 101 is less than the length of the second limiting part 102.

[0036] The first limiting part 101 has an integral fixing part 5 at one end away from the second limiting part 102. The fixing part 5 is fixed on the second mounting part and extends toward the first mounting part.

[0037] In this embodiment, in order to improve the stability of the first limiting part 101, an integral fixing part 5 is provided on the end of the first limiting part 101 away from the second limiting part 102. The fixing part 5 is used to fix it to the second mounting part. In order to increase the contact area with the corner body 1, the fixing part 5 extends towards the first mounting part.

[0038] The second limiting part 102 has an arc-shaped transition part 6 at one end away from the first limiting part 101.

[0039] In this embodiment, in order to prevent the second limiting part 102 from scratching or damaging the B-pillar exterior trim 2 during the limiting engagement or disengagement process with the B-pillar exterior trim 2, a transition part 6 is provided on the end of the second limiting part 102 away from the first limiting part 101. The transition part 6 is located in an arc-shaped structure to replace the sharp end with an arc shape.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An upper joint of a B-pillar joint strip comprising a joint body having a first mounting portion for mounting a sealing strip thereon, characterized in that, The corner connecting body is provided with a second mounting portion opposite to the first mounting portion, and a limiting opening is arranged on the second mounting portion, which is used for limiting cooperation with a B-column outer trim panel, so that the B-column outer trim panel is clamped on the second mounting portion through the limiting opening or is disengaged from the second mounting portion. The second mounting portion is provided with an integral first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion extend along the X-axis and the Z-axis directions respectively, and the limiting opening is defined therebetween.

2. The upper corner of a B-pillar connector strip according to claim 1, characterized in that The limiting opening is in the form of a longitudinally extending strip.

3. The upper corner of a B-pillar intrusion strip according to claim 1, wherein One end of the second limiting portion is flush with the first limiting portion, and the other end extends towards the vehicle interior.

4. The upper corner of a B-pillar intrusion strip according to claim 1, wherein The first limiting portion is provided with a first giving-up opening arranged along the length direction of the first limiting portion on the side facing the limiting opening.

5. An upper corner joint for a B-pillar intrusion bar according to claim 4, wherein The second limiting portion is provided with a second giving-up opening arranged along the length direction of the second limiting portion on the side facing the limiting opening.

6. An upper corner joint for a B-pillar intrusion bar according to claim 5, wherein The first giving-up opening and the second giving-up opening are communicated.

7. The upper corner of a B-pillar intrusion strip according to claim 1, wherein The length of the first limiting portion is less than the length of the second limiting portion.

8. The upper corner of a B-pillar intrusion strip according to claim 1, wherein One end of the first limiting portion away from the second limiting portion is provided with an integral fixing portion, and the fixing portion is fixedly arranged on the second mounting portion and extends towards the first mounting portion.

9. The upper corner of a B-pillar intrusion strip according to claim 1, wherein One end of the second limiting portion away from the first limiting portion is provided with a circular-arc-shaped transition portion.

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