Mounting structure of doorframe sealing strip

Abstract

The invention discloses a mounting structure of a doorframe sealing strip with a back sealing lip except a hollow sealing lip, which is particularly used for improving the sealing property of the back sealing lip. The solution scheme is as follows: the doorframe sealing strip (4) with a mounting base part (9) and the hollow sealing lip (10) is fixed at an angle-shaped corner part (5) of an inner vehicle door panel (3) by utilizing a fixture (17). The mounting base part (9) comprises a first wall part (12), a second wall part (13), the back sealing lip (15) and an auxiliary sealing lip (23), wherein the first wall part (12) clings relative to a wall surface (3a) in the transverse direction by utilizing the retention generated by the fixture (17), the second wall part (13) is opposite to a wall surface (3b) in a longitudinal direction, the back sealing lip (15) forms a gap (G) between the wall surface (3b) clinging to the longitudinal direction and the second wall part (13), and the auxiliary sealing lip (23) is pressed on an internal angle arc-shaped surface (3c) of the corner part (5) and flexibly deforms.

Description

technical field [0001] The present invention relates to an installation structure of a door frame weather strip in an automobile, and in particular, relates to an installation structure of a door frame weather strip on a lower side portion of a door. Background technique [0002] The door frame weather strip is installed around the door of the car. As a typical attachment structure of such a door weather strip, for example, the structure described in patent document 1 is known. In addition, the door frame weather strip seals the gap between the door opening on the vehicle body side and the door, and functions as a sealing member that prevents wind, rain, dust, sound, and the like from entering the vehicle interior. [0003] Image 6 It is the installation structure at the lower part of the door described in Patent Document 1. The door frame weather strip 50 includes, in addition to the hollow sealing lip 52 protruding from the installation base 51 , a hollow sealing lip 52 ...

AI Technical Summary

Problems solved by technology

[0007] But when Image 6 In the structure of the present invention, since the installation base 51 is pushed onto the wall surface 53a in the lateral direction only by the jig 55, there are influences such as processing errors and assembly errors of the inner door panel 53 and the door frame weather strip 50 itself, and the rear sealing lip If 54 cannot be closely attached to the wall surface 53b in the longitudinal direction, the sealing performance will be reduced.

In particular, since the entire door frame weather strip 50 tends to incline (easily fall) in the direction of the arrow Q at the portion not directly restrained by the clamp 55, the reduction in the sealing performance of the above-mentioned back seal lip 54 becomes more remarkable.

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