JP4511149B2 - Door weather strip mounting structure - Google Patents

Description

  The present invention relates to a mounting structure in which a door weather strip having a hollow seal portion elastically contacting a body panel is attached to a sash that forms a door of an automobile.

This will be described with reference to FIGS. A so-called roll forming sash 41 in which a single metal plate is bent and formed a plurality of times by a forming roll machine is often used for an automobile door sash. In addition, a door weather strip 50 having a base portion 52 assembled to the sash 41 and a hollow seal portion 51 that elastically contacts the body panel 60 is attached to the roll forming sash 41 (for example, Patent Document 1). reference).
JP 2003-191755 A

  The appearance surface 43 of the roll forming sash 41 has a problem that the appearance is not clean because the vertical width D is set to about 20 mm due to the forming method.

  In order to improve this point, the present inventors have realized that the vertical width D of the outer appearance surface 43 is set to about 15 mm, which causes a new problem. That is, by setting the vertical width D short, the position of the mounting portion 42 to which the door weather strip 50 is attached is inevitably increased. On the other hand, the upper end of the exterior surface 43 and the roof portion outer end surface 61b of the body panel 60 (presently conventional). According to the technology, the parting dimension M between the lower end surface 61b) of the exterior material 62 needs to be maintained at about 7 mm as in the past in consideration of variations in installation, etc. The distance with the part 61 becomes short, and it becomes impossible to ensure the space where the hollow seal part 51 can bend smoothly, As a result, sealing performance and door closing performance fall.

  Further, in this prior art, the hollow seal portion 51 has a substantially triangular cross section, and its apex protruding portion 51a is elastically contacted with the inclined flat portion 61a of the roof portion 61, and in consideration of moldability, the hollow seal portion 51 Since the bifurcated portion 53, which is the outer end portion of the vehicle 51, is directly connected to the base portion 52, the thickness T of the bifurcated portion 53 inevitably increases to 6 mm or more.

  Therefore, the hollow seal portion 51 bulges and deforms both on the indoor side and on the vehicle outer side with the vertex protruding portion 51a as a center in a state where the vertex protruding portion 51a is bent by elastic contact with the inclined flat portion 61a. In addition to the inclined flat portion 61a, the lower end surface 61b of the roof portion 61 is elastically contacted to generate a so-called bottom. As a result, the sealing performance deteriorates, and a problem occurs that a large reaction force is suddenly generated and the door closing performance is deteriorated.

  Further, since the hollow seal portion 51 has a strong tendency to be in line contact with the inclined flat portion 61a at the apex protruding portion 51a, it is not possible to cope with the case where the body panel 60 or the like has variations in molding or installation. Further, there is a problem that the sealing performance is lowered.

  The present invention was devised in view of these problems, and it is an object of the present invention to improve sealing performance, door closing performance, and appearance in an attachment structure in which a door weather strip having a hollow seal portion is attached to a sash. .

This will be described with reference to FIGS. The door weather strip mounting structure according to claim 1 is a mounting structure in which a door weather strip 10 having at least a base portion 12 and a hollow seal portion 11 is mounted on a mounting portion 2 of a sash 1 forming a door of an automobile. It is a structure, and the inside of the hollow seal portion 11 is an arc portion 11a having a substantially semicircular cross section, and the outer end portion of the hollow seal portion 11 is connected to a short cross section rod-like connecting portion 13 A portion of the body panel 20 that is elastically contacted with the arc portion 11a of the body panel 20 is formed as a projecting curved portion 21a that is curved, thereby facilitating the tilting of the hollow seal portion 11 and the arc of the sash 1. As the descending portion 4 in which the lower end portion of the portion 11a is elastically contacted, the sealing portion, the door closing property, and the appearance are improved.

The door weather strip mounting structure according to the second aspect of the present invention includes a door weather strip 10 including a base portion 12, a hollow seal portion 11, and a lip portion 14 attached to a mounting portion 2 of a sash 1 forming an automobile door. The mounting structure is an arcuate portion 11a in which the indoor side of the hollow seal portion 11 is formed in a substantially semicircular cross section, and the vehicle outer end portion of the hollow seal portion 11 is a connecting portion 13 having a short cross section rod shape. A portion of the body panel 20 that is elastically contacted with the base portion 12 is a protruding curved portion 21a that protrudes in a curved shape, thereby facilitating the tilting of the hollow seal portion 11 and the sash 1. A portion where the lower end of the arc portion 11a is elastically contacted is a descending portion 4 which is inclined downward, and a run channel 32 which is slidably contacted with the door glass 33 immediately below the mounting portion 2 of the sash 1 is provided. The sealing member 30 elastically contacting the indoor side end portion of the sash 1 is attached to the indoor side end portion of the body panel 20 to improve the sealing performance, the door closing performance, and the appearance. .

  According to the first aspect of the present invention, the arc portion 11a of the hollow seal portion 11 is elastically contacted with the protruding curved portion 21a of the body panel 20, and the hollow seal portion 11 and the base portion 12 are connected by the connecting portion 13 having a short bar-like cross section. In addition, since the portion where the lower end of the arc portion 11a of the sash 1 is elastically contacted is the descending portion 4, the door closing property, the sealing property, and the appearance are excellent.

  That is, by closing the door, the arc portion 11a of the hollow seal portion 11 comes into elastic contact with the protruding curved portion 21a of the body panel 20, but both the arc portion 11a and the protruding curved portion 21a are curved surfaces. Surface contact can be ensured within a certain range. Therefore, high sealing performance is demonstrated. In particular, even if the body panel 20 or the like has variations in molding or installation, it can be flexibly dealt with.

  Further, the hollow seal portion 11 is a rod having a short cross section and is connected to the base portion 12 by a connecting portion 13 having a small wall thickness t (thus, having low rigidity), and the sash 1 is formed with the descending portion 4. Then, it easily tilts downward with the connecting portion 13 as a fulcrum. Thereby, it can prevent bottoming that the hollow seal part 11 elastically contacts the roof part 21 lower end surface 21b of the body panel 20, and can improve sealing performance and door closing performance.

  Further, with such a configuration, the vertical width d of the appearance surface 3 of the sash 1 can be set shorter than the conventional vertical width D, and the appearance of the appearance can be improved.

  The invention according to claim 2 can improve the sealing property, the door closing property, and the appearance of the appearance, similarly to the invention according to claim 1. Moreover, since the run channel 32 and the sealing material 30 are provided, the sealing performance between the sash 1, the door glass 33, and the body panel 20 can be secured satisfactorily, and the sealing performance can be further enhanced.

  1 and 3 show an embodiment of a door weather strip mounting structure according to the present invention. This is because the length d of the appearance surface 3 of the roll forming sash 1 that forms the door of the automobile (in this embodiment, the appearance surface 3 of the exterior trim 5) is set to be short from the conventional 20 mm to the 15 mm level. It is intended to improve the appearance. And the problem of the sealing performance and door closing performance which arise by this is solved by the following means. The parting dimension M is set to 7 mm as usual.

  That is, in the mounting structure in which the door weather strip 10 having the base 12, the hollow seal portion 11, and the lip portion 14 is attached to the mounting portion 2 of the roll forming sash 1, first, the interior side of the hollow seal portion 11 is approximately half in cross section. The circular arc portion 11a is formed, and the outer end portion of the hollow seal portion 11 is connected to the base portion 12 through a connecting portion 13 having a short cross section. In addition, the circular arc part 11a is connected with the connection part 13 via the upper inclination part 11b and the downward inclination part 11c.

  Moreover, the part which the arc part 11a of the body panel 20 elastically contacts is made into the protruding curved part 21a which curvedly protruded, and the part which the arc part 11a lower end part of the roll forming sash 1 elastically contacts is made into the descending part 4 which inclined downward. Yes.

  Further, a run channel 32 that is in sliding contact with the door glass 33 is mounted directly below the mounting portion 2 of the roll forming sash 1, and a hollow seal that is elastically contacted with the indoor side end of the roll forming sash 1 at the indoor side end of the body panel 20. The sealing material 30 provided with the part 31 is attached.

  With this structure, when the door is closed, the arc portion 11a of the hollow seal portion 11 comes into surface contact with the protruding curved portion 21a of the body panel 20 within an appropriate range. Therefore, even if the body panel 20 or the like has variations in molding or installation, good sealing performance is ensured.

  Moreover, this hollow seal part 11 inclines below by the function of the connection part 13 of a cross-sectional short bar shape. At this time, since the lowering portion 4 is formed in the roll forming sash 1, the hollow seal portion 11 can be easily tilted. Thereby, the hollow seal part 11 does not elastically contact the bottom end surface 21b of the roof part 21 and bottoms out, and the sealing performance and the door closing performance are improved.

  In this embodiment, since the run channel 32 and the seal material 30 are provided, the sealability between the roll forming sash 1, the door glass 33, and the body panel 20 can be maintained well.

In the embodiment of the present invention, only the roll forming sash is illustrated and described as the sash. However, the present invention can also be applied to a sash manufactured by another method.

It is a side view which shows the motor vehicle which has the attachment structure of a door weather strip. It shows a conventional example and is a cross-sectional view taken along line XX of FIG. 1, showing an embodiment of the present invention, is a cross-sectional view taken along line XX of FIG.

DESCRIPTION OF SYMBOLS 1 Roll forming sash 2 Attaching part 3 Appearance surface 4 Lowering part 5 Exterior trim 10 Door weather strip 11 Hollow seal part 11a Arc part 11b Upper inclination part 11c Lower inclination part 12 Base part 13 Connection part 14 Lip part 20 Body panel 21 Roof part 21a Protruding curved portion 21b Outer end surface 30 Sealing material 31 Hollow seal portion 32 Run channel 33 Door glass 41 Roll forming sash 42 Mounting portion 43 External surface 50 Door weather strip 51 Hollow seal portion 51a Vertex protruding portion 52 Base 53 Bifurcated portion 60 Body panel 61 Roof part 61a Inclined flat part 61b Outer end face 62 Exterior material d Vertical width of external face D Vertical width of external face M Cut-off dimension t Thickness of connecting part T Thickness of bifurcated part

Claims (2)

An attachment structure in which a door weather strip (10) having at least a base (12) and a hollow seal portion (11) is attached to an attachment portion (2) of a sash (1) that forms a door of an automobile. The interior side of the seal portion is an arc portion (11a) formed in a substantially semicircular cross section, and the vehicle outer end of the hollow seal portion is connected to the base via a connecting portion (13) having a short cross section. The portion of the body panel (20) where the arc portion is elastically contacted is a protruding curved portion (21a) that protrudes in a curved shape to facilitate the tilting of the hollow seal portion, and the lower end portion of the arc portion of the sash is elastic. A door weather strip mounting structure characterized in that a sealing part, a door closing characteristic and an appearance are improved as a descending part (4) in which a contacting part is inclined downward. A mounting structure in which a door weather strip (10) having a base (12), a hollow seal portion (11), and a lip portion (14) is attached to a mounting portion (2) of a sash (1) forming an automobile door. In addition, the interior side of the hollow seal portion is an arc portion (11a) formed in a substantially semicircular cross section, and the outer end of the hollow seal portion is connected to a short cross section rod-like connection portion (13). The projecting curved portion (21a) connected to the base portion and elastically contacting the arc portion of the body panel (20) is formed into a curved shape to facilitate the tilting of the hollow seal portion, and the arc of the sash The lower part of the body is in a downwardly inclined part (4) inclined downward, and a run channel (32) slidably in contact with the door glass (33) is attached directly below the attachment part of the sash. At the inner edge, Bullet contact sealant chamber side end portion of the shoe is attached (30), sealing property, the mounting structure of the door weather strip, characterized in that to improve the door closed and appearance.

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