JP5399156B2 - Automobile door seal structure - Google Patents

Description

  The present invention relates to a seal structure for an automobile door in which a belt line inner seal or a belt line outer seal and a glass run are integrally formed.

  This will be described with reference to FIGS. A belt line inner seal 31 that is in sliding contact with the door glass 2 from the inside of the vehicle and a belt line outer seal that is in sliding contact with the door glass 2 from the outside of the vehicle are attached to the door of the automobile. A glass run 33 is attached along the pillar P (front pillar P1, center pillar P2, rear pillar P3) so as to be in sliding contact with the door glass 2. The belt line outer seal is provided substantially parallel to the belt line inner seal.

  For example, the belt line inner seal 31 and the glass run 33 may be separately formed and attached, and may be integrally formed and attached. Of these, the seal structure 30 that is integrally formed and attached has a belt line inner seal. The tip ends of 31 seal lips 32 (upper lip 32a and lower lip 32b) are abutted against the seal lip 34 (inner lip 34a) of the glass run 33 to connect the portions (see FIGS. 2 and 3). .

However, when the front end of the seal lip 32 of the beltline inner seal 31 is abutted against the inner lip 34a of the glass run 33 and the portion is connected, the seal lip of the beltline inner seal 31 is raised when the door glass 2 is raised. Since 32 is bent upward and the seal lip 34 of the glass run 33 is bent forward (or backward) (see arrows in FIGS. 2 and 3), a stress is generated so that the two pull each other.

  Therefore, the sliding contact force (reaction force) of both the seal lips 32, 34 with respect to the door glass 2 becomes larger than necessary, and the wear resistance is reduced by sliding strongly, and the seal lip 32 of the beltline inner seal 31 and the door. A gap S is formed between the glass 2 and the glass 2 (see FIG. 4).

  Further, since a so-called meat reservoir M is formed at the connecting portion between the upper lip 32a and lower lip 32b of the beltline inner seal 31 and the inner lip 34a of the glass run 33 (see FIG. 5), The sliding contact force of the seal lips 32 and 34 with respect to the door glass 2 becomes larger than necessary, and the wear resistance is lowered.

  In order to improve such a problem, the narrow part W is formed in order to reduce the amount of lap with respect to the door glass 2 by gradually decreasing the protruding amount of the seal lip 32 of the beltline inner seal 31. (Refer to FIG. 3) Means (see FIG. 6) are taken such that a gap G is formed between the seal lip 32 of the beltline inner seal 31 and the inner lip 34 a of the glass run 33.

  However, in such a means, when the door glass 2 is attached in a state of being offset toward the outside of the vehicle due to variations in building, there arises a problem that the sealing performance is deteriorated.

  The present invention was devised in view of such problems, and in a seal structure in which a beltline inner seal or a beltline outer seal and a glass run are integrally formed, a product having high seal lip wear resistance and excellent sealability is provided. Is an issue.

This will be described with reference to FIG. 1 and FIGS. The automobile door seal structure 1 according to claim 1 is mounted along the belt line L of the automobile door, and the upper lip 12 and the lower lip of the belt line inner seal 10 or the belt line outer seal that are in sliding contact with the door glass 2. The belt line inner seal 10 or the belt line outer seal is integrated with the glass run 20 in a state in which the tip of 13 is attached to the inner lip 22 or the outer lip of the glass run 20 attached along the pillar P and slidably contacting the door glass 2. This is a molded configuration.

  Then, a notch N is formed in a portion of the inner lip 22 or outer lip facing the tip of the beltline inner seal 10 or beltline outer seal, and the tip of the upper lip 12 is connected to the notch N. Insert into. Further, the lower lip 13 is connected to a lower limit setting end 22b that sets a lower limit of the notch N of the inner lip 22 or the outer lip.

  Further, the upper lip 12 that bends upward when the door glass 2 is closed with the gap N1 between the upper lip 12 and the upper limit setting end 22a that sets the upper limit of the notch N of the inner lip 22 or the outer lip. Set to a size that can be crushed.

Seal structure 1 of a motor vehicle door according to claim 2 is the invention according to claim 1, the distal end portion of the upper lip 12, is advanced from the inner lip 22 or the outer lip on the rear side, by an increase of the door glass 2 The upper end lip 12 that is bent upward covers the inner lip 22 or the upper limit setting end 22a of the outer lip.

  In the automotive door seal structure 1 according to claim 1, the tip of the beltline inner seal 10 or the beltline outer seal upper lip 12 is inserted into the notch N formed in the inner lip 22 or outer lip of the glass run 20. Further, since the lower lip 13 is connected to the inner lip 22 or the lower limit setting end 22b of the outer lip, the door glass of the belt line inner seal 10 or the belt line outer seal and the seal lips 11 and 21 of the glass run 20 is used. 2 can improve wear resistance and sealability.

  That is, since the tip end portion of the upper lip 12 is inserted into the notch N, the upper lip 12 and the inner lip 22 or the outer lip are not connected to each other, and their movements are not restricted. Further, no meat reservoir M is formed in that portion. Therefore, when the door glass 2 is raised, the upper lip 12 can be freely bent upward by its elastic contact force, and the inner lip 22 or the outer lip can be freely moved forward (or rearward) by the elastic contact force. Can bend.

  As a result, since the sliding contact force with respect to the door glass 2 can be suppressed, the wear resistance of the seal lips 11 and 21 can be improved. Further, since the upper lip 12 and the inner lip 22 or the outer lip are closely elastically contacted with the door glass 2 without forming the gap S as in the prior art, the sealing performance can be improved.

  Further, the lower lip 13 is easily bent upward because the notch N is formed immediately above the lower lip 13, and therefore, the sliding contact force with respect to the door glass 2 can be relaxed, thereby improving the wear resistance. . At the same time, the sealing performance can be improved.

  Further, the outer lip 23 (or inner lip) of the glass run 20 is pushed out to the outside (or inside) by suppressing the sliding contact force of the inner lip 22 (or outer lip) to the door glass 2. There is no strong sliding contact with the outer lip 23 (or inner lip). Thereby, the abrasion resistance of the outer lip 23 (or inner lip) can also be improved.

Further, when the door glass 2 is closed, the upper lip 12 that is bent upward collapses the gap N1 between the upper lip 12 and the upper limit setting end 22a that sets the upper limit of the notch N of the inner lip 22 or the outer lip. Since it is set to a size that can be used, it is possible to prevent sound and water from entering from the gap N1. Thereby, a sealing performance can further be improved.

The automobile door seal structure 1 according to claim 2 exhibits the same effect as the invention according to claim 1 . Further, the upper end of the upper lip 12 is made to enter the inner side of the inner lip 22 or the outer lip, and the upper end of the upper lip 12 is bent upward by the rising of the door glass 2. Since the setting end 22a is obscured, it is possible to prevent the rising door glass 2 from being caught by the upper limit setting end 22a of the inner lip 22 or the outer lip and rolling up the inner lip 22 or the outer lip.

  Further, the end portions of the seal lips 11 and 21 are difficult to be subjected to surface treatment (planting, painting, etc.), and therefore it is necessary to avoid contact with the door glass 2 in order to prevent wear. In the present invention, the upper lip 12 slides into contact with the upper end of the rising door glass 2 and bends upward (see FIG. 9), covering the inner lip 22 or the end (upper limit setting end 22a) of the outer lip. Contact with the glass 2 can be avoided, and thus wear resistance can be enhanced.

It is a side view which shows the motor vehicle provided with the seal structure comprised by a beltline inner seal or a beltline outer seal, and a glass run. It is a principal part perspective view which shows the seal structure which concerns on a prior art example. FIG. 3 is a perspective view of the seal structure shown in FIG. 2 viewed from the front. It is a partial cross section top view of the seal structure shown in FIG. The sealing structure which concerns on a prior art example is shown, (a) is the XX sectional view taken on the line of FIG. 2, (b) is the YY sectional view. 2 shows a seal structure according to another conventional example, in which (a) corresponds to a cross-sectional view taken along the line XX of FIG. 2, and (b) corresponds to a cross-sectional view taken along the line YY. It is a principal part perspective view which shows embodiment of the seal structure which concerns on this invention. FIG. 8 is a perspective view of the seal structure shown in FIG. 7 viewed from the front. FIG. 8 is a sectional view taken along line ZZ in FIG. 7 .

  One embodiment of a seal structure 1 for an automobile door according to the present invention is shown in FIGS. 1 and 7 to 9. This seal structure 1 is formed by integrally molding a beltline inner seal 10 and a glass run 20, and has a feature in a portion indicated by a symbol R in FIG. The beltline inner seal 10 is attached along the beltline L of the automobile door, and a pair of seal lips 11 (upper lip 12 and lower lip 13) projecting from the vehicle outer wall 15 of the attachment base 14 are door glass 2. Touch the side of the room.

  The glass run 20 is attached along the pillar P (front pillar P1, center pillar P2, rear pillar P3), and a pair of seal lips 21 (inner lip 22 and outer lip 23) projecting from the attachment base 24 are door glass. 2 is in sliding contact with the indoor side surface and the vehicle outer side surface.

  Further, the seal structure 1 is configured such that the tips of the upper lip 12 and the lower lip 13 of the beltline inner seal 10 are abutted against the inner lip 22 of the glass run 20.

  And the notch part N is formed in the part which opposes the front-end | tip part of the beltline inner seal 10 (upper lip 12 and lower lip 13) of the inner lip 22, and the front-end | tip part of the upper lip 12 is made into the notch part N Inserting. Further, the lower lip 13 of the beltline inner seal 10 is connected to a lower limit setting end 22 b that sets the lower limit of the notch N of the inner lip 22. This connection is made by molding.

  Further, when the door glass 2 is closed, the upper lip 12 bent upward is crushed (closed) in the gap N1 formed between the upper limit setting end 22a of the inner lip 22 and the upper lip 12. The size is set as possible. In the present embodiment, the width (interval in the vertical direction) of the gap N1 is set to about 1 to 2 mm.

  Further, the tip of the upper lip 12 is made to enter the inner side of the mounting base 24 from the inner lip 22, that is, the rear side of the glass run 20 from the inner lip 22, and is bent upward by the rising of the door glass 2. The upper limit setting end 22a of the inner lip 22 is covered.

  In this seal structure 1, the tip of the upper lip 12 is inserted into the notch N so that the upper lip 12 and the inner lip 22 are not connected. It is not constrained, and the meat reservoir M is not formed. Therefore, when the door glass 2 is raised, the upper lip 12 can be freely bent upward by its elastic contact force, and the inner lip 22 can be freely bent forward (or rearward) by the elastic contact force. Can do.

  Thereby, the sliding-contact force with respect to the door glass 2 can be suppressed, and abrasion resistance can be improved. Further, the sealing performance can be enhanced by closely contacting the entire length of the entire length with the door glass 2.

  Moreover, since the notch part N is formed in the upper side of the lower lip 13, it is easy to bend upward, Therefore The sliding contact force with respect to the door glass 2 can be relieve | moderated. Thereby, the abrasion resistance of the lower lip 13 can also be improved. In addition, the sealing performance can be improved.

  Furthermore, the outer lip 23 of the glass run 20 is not slidably contacted with the outer lip 23 due to the door glass 2 being pushed out by suppressing the sliding contact force of the inner lip 22 with respect to the door glass 2. Thereby, the abrasion resistance of the outer lip 23 can also be improved.

  Further, the seal structure 1 has an upper lip that is bent upward when the door glass 2 is closed with a gap N1 between the upper limit lip 12 and the upper limit setting end 22a that sets the upper limit of the notch N of the inner lip 22 being closed. Since 12 is set to a size that can be crushed, it is possible to prevent intrusion of sound and water from the gap N1 when the door glass is closed. Thereby, sealing performance can be improved.

  Further, the seal structure 1 has an upper end of the inner lip 22 at the distal end portion of the upper lip 12 that is bent upward by the rising of the door glass 2 by causing the distal end portion of the upper lip 12 to enter the inner side of the inner lip 22. Since the setting end 22a is obscured, it is possible to prevent the rising door glass 2 from being caught by the upper limit setting end 22a of the inner lip 22 and lifting up the inner lip 22.

  Moreover, since the upper limit setting end 22a of the inner lip 22 that is difficult to be subjected to surface treatment (planting, painting, etc.) is covered with the upper lip 12, contact with the door glass 2 can be avoided. Thereby, the surface treatment is insufficient, and the upper limit setting end 22a having poor wear resistance can be protected.

  Moreover, although the said embodiment was related with the beltline inner seal, you may be applied to a beltline outer seal.

DESCRIPTION OF SYMBOLS 1 Seal structure 2 Door glass 10 Beltline inner seal 11 Seal lip 12 Upper lip 13 Lower lip 14 Mounting base 15 Car outer wall 20 Glass run 21 Seal lip 22 Inner lip 22a Upper limit setting end 22b Lower limit setting end 23 Outer lip 24 Mounting base 30 Seal structure 31 Belt line inner seal 32 Seal lip 32a Upper lip 32b Lower lip 33 Glass run 34 Seal lip 34a Inner lip 34b Outer lip G Gap L Belt line M Meat pool N Notch N1 Gap P pillar P1 Front pillar P2 Center pillar P3 Rear pillar S Gap W Narrow part

Claims (2)

The tip of the upper lip (12) and the lower lip (13) of the beltline inner seal (10) or the beltline outer seal that is attached along the beltline ( L ) of the automobile door and slidably contacts the door glass (2). The belt line inner seal or the belt line outer seal is integrated with the glass run in a state of being abutted with the inner lip (22) or the outer lip of the glass run (20) that is attached along the pillar (P) and is in sliding contact with the door glass. In the molded seal structure, a notch (N) is formed in a portion of the inner lip or outer lip facing the tip of the beltline inner seal or beltline outer seal, and the tip of the upper lip is formed , Inserted into the notch, and the lower lip in front of the inner lip or outer lip Connected to the lower limit setting end (22b) for setting the lower limit of the notch, and the gap (N1) between the upper limit setting end (22a) and the upper lip for setting the upper limit of the notch of the inner lip or outer lip The door door seal structure is characterized in that the upper lip bent upward when the door glass is closed can be crushed. The tip of the upper lip (12) is inserted into the rear side of the inner lip (22) or the outer lip, and the upper lip is bent upward by the rising of the door glass (2). The automobile door seal structure according to claim 1, wherein the upper limit setting end (22a) of the lip is covered.

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