JP4059448B2 - Weather strip for vehicle - Google Patents

Description

  The present invention relates to a weather strip for a vehicle that is mounted along a back door opening edge of the vehicle.

  In a vehicle having a back door such as a wagon type or a van type, for example, as shown in FIG. 8, the weather strip 1 mounted along the back door opening edge is provided on the vehicle body provided along the back door opening edge. The back door is closed by integrally forming a hollow seal portion 4 that abuts against the back door and elastically deforms when the back door is closed on the mounting base 3 having a substantially U-shaped cross section that is mounted so as to sandwich the flange 2 of the panel. In some cases, the gap between the back door and the back door opening edge is sealed with the hollow seal portion 4. In such a weatherstrip 1, a rainwater induction lip 5 that protrudes toward the vehicle outer side is provided on the vehicle outer side surface of the mounting base 3 of the weatherstrip 1 so as to extend in the longitudinal direction. There is one in which a rain gutter 6 extending in the longitudinal direction is formed between the lip 7 and the lip 7.

  By the way, depending on the vehicle, depending on the peripheral parts of the back door opening edge, rainwater may be attached to a portion of the weather strip attached along the back door opening edge along the lower side of the back door opening edge. If the guide lip is provided, there may be a problem that it interferes with other members or deteriorates in appearance.

  In such a case, the lower weather strip attached along the lower side of the back door opening edge is not provided with a rainwater induction lip, but only on the upper weather strip attached along the upper side of the back door opening edge. It is conceivable to install a weather strip in which a rainwater guiding lip is provided and an upper weather strip provided with the rainwater guiding lip and a lower weather strip from which the rainwater guiding lip is omitted are joined.

  However, in the weather strip in which the upper weather strip provided with the rain water induction lip and the lower weather strip without the rain water induction lip are joined in this way, the weather strip flows along the rain gutter formed along the rain water induction lip of the upper weather strip. Since rainwater or the like flows down toward the lower weather strip from which the rainwater induction lip is omitted, the rainwater or the like may enter the inside of the vehicle from the lower weather strip.

  The present invention has been made in consideration of such circumstances, and the object of the present invention is therefore to provide a rain weather guiding lip not provided on the lower weather strip mounted along the lower side portion of the back door opening edge. However, an object of the present invention is to provide a weather strip for a vehicle that can prevent rainwater and the like from entering the inside of the vehicle and can improve waterproofness.

  In order to achieve the above object, a weather strip for a vehicle according to claim 1 of the present invention is mounted so as to sandwich a flange provided along a back door opening edge of the vehicle from both the inside and outside of the vehicle. A weather strip for a long vehicle with a mounting base that is mounted along an upper weather strip mounted along the upper side of the back door opening edge and a lower side of the back door opening edge A first rainwater guide lip projecting toward the outside of the vehicle on the vehicle outer side surface of the mounting base of the upper weather strip and extending in the longitudinal direction. Accordingly, the first rain gutter is formed so as to extend in the longitudinal direction along the first rain water guiding lip, and the first rain water guiding rib is formed at the joint and / or the vicinity thereof. By providing a second rainwater guide lip joined to the terminal of the basin so as to extend in a direction different from the longitudinal direction, the second rain gutter is continuous with the first rain gutter along the second rainwater guide lip. And is formed so as to extend in a direction away from the mounting base.

  In this configuration, rainwater and the like flowing in the first rain gutter formed along the first rain water guiding lip of the upper weather strip is transferred to the second rain gutter formed along the second rain water guiding lip. This second rain gutter can be drained to the outside of the vehicle by flowing away from the weather strip mounting base. This prevents rainwater flowing along the rain gutter formed along the rainwater guiding lip of the upper weatherstrip from entering the inside of the car from the lower weatherstrip even when the rainwater guiding lip is not provided on the lower weatherstrip. It is possible to improve waterproofness.

  In this case, as described in claim 2, the first outer surface of the mounting base portion of the upper weather strip protrudes toward the outer side of the vehicle from the first rainwater induction lip and contacts the base side of the flange. A seal lip may be formed, and a second seal lip joined to the end of the first seal lip may be formed integrally with the second rainwater induction lip at and / or in the vicinity of the joint. If it does in this way, it can seal between an attachment base and a flange with the 1st seal lip and the 2nd seal lip, and it can effectively prevent rainwater etc. permeating between an attachment base and a flange. Can be prevented.

  Further, as in claim 3, it is preferable that the joint portion and the second rainwater induction lip are integrally formed by injection molding. If it does in this way, a junction part and the 2nd rainwater guidance lip can be efficiently formed in the shape which can fully exhibit the function. In addition, the second rainwater induction lip can be formed at the same time as the joining portion is formed to join the upper weather strip and the lower weather strip, and the productivity can be improved.

  Furthermore, as in claim 4, the joint and the second rainwater induction lip may be formed of a foamed rubber material. If it does in this way, functionality of a joined part and the 2nd rainwater guidance lip can be secured.

  Further, as in claim 5, the first rainwater induction lip is removed to a position retracted by a predetermined dimension from the end of the upper weather strip, and the second rainwater induction lip is removed from the portion where the first rainwater induction lip is removed. The first rainwater induction lip and the second rainwater induction lip may be joined so as to be continuous. In this way, the longitudinal dimension of the second rainwater induction lip can be ensured long, and the second rainwater induction lip and the second rain gutter can be gently curved. The rainwater etc. can flow smoothly without stagnation in the rain gutter, and the 1st rainwater induction lip and the 2nd rainwater induction lip can be joined in a beautiful manner, improving the design. Can be made.

  Further, as in claim 6, the first seal lip is removed to a position retracted by a predetermined dimension from the end of the upper weather strip, and the first seal lip is removed to form a second seal lip in the portion. The first seal lip and the second seal lip may be joined so as to be continuous. If it does in this way, the 1st seal lip and the 2nd seal lip can also be joined with good appearance, and design nature can be improved further.

  Further, as in claim 7, the second rainwater induction lip and the second seal lip may be integrated on the lower end side. If it does in this way, the 2nd rain gutter formed between the 2nd rainwater guidance lip and the 2nd seal lip can be terminated smoothly.

An embodiment of the present invention will be described below with reference to FIGS.
As shown in FIG. 1, a long weather strip 12 mounted along a back door opening edge of a vehicle body panel 11 has a long upper weather strip 13 and a long lower weather strip 14 which are both weather strips. It is joined via a joint 15 at the terminal. The upper weather strip 13 is mounted from the upper flange 16 provided along the upper side of the back door opening edge to the upper side of the side flange 17 provided along the side of the back door opening edge. The lower weather strip 14 is mounted from the lower flange 18 provided along the lower side portion of the back door opening edge to the lower side portion of the side flange 17 provided along the side side portion of the back door opening edge. It has become so. The upper weather strip 13 and the lower weather strip 14 are each formed by extrusion molding of an elastic polymer material described later, and the joint 15 is formed by injection molding of an elastic polymer material described later.

Next, the structure of the upper weather strip 13 and the lower weather strip 14 will be described with reference to FIGS.
As shown in FIG. 2, the upper weather strip 13 is formed by integrally forming an attachment base 19 having a substantially U-shaped cross section and a hollow seal portion 20 having a substantially O-shaped cross section by extrusion molding. A reinforcing fish bone-shaped core material 21 formed of a metal plate or the like is embedded by insert molding. A plurality of holding lips 24 projecting inward are integrally formed on the inner side surfaces of the vehicle outer side wall 22 and the vehicle inner side wall 23 of the mounting base 19 so as to extend in the longitudinal direction.

  When the mounting base 19 is put on the flanges 16 and 17 of the vehicle body panel 11 and pushed in, the holding lip 24 is elastically deformed so that the flanges 16 and 17 are sandwiched from both the inside and outside of the vehicle so that the upper weather strip 13 is flanged. 16 and 17 are attached. When the back door 25 is closed, the surface of the back door 25 abuts against the hollow seal portion 20 and elastically deforms the hollow seal portion 20, so that the gap between the back door 25 and the vehicle body panel 11 is sealed by the hollow seal portion 20. It is like that.

  Further, a first rainwater guide lip 26 protruding toward the vehicle outer side is formed integrally with the mounting base 19 on the outer surface of the vehicle outer side wall 22 of the mounting base 19 so as to extend in the longitudinal direction. Further, a first seal lip 28 that protrudes toward the vehicle outer side toward the front end side of the first rainwater guiding lip 26 extends integrally with the outer surface of the vehicle outer side wall 22 of the mounting base 19. The contact lip 29 protruding toward the vehicle interior is integrally formed at the tip of the vehicle outer side wall 22 so as to extend in the longitudinal direction. When the upper weather strip 13 is mounted on the flanges 16 and 17, the first seal lip 28 and the contact lip 29 are elastically deformed and abut on the base side of the flanges 16 and 17, so that the mounting base 19 and the flange 16 , 17 is sealed with a first sealing lip 28 and a contact lip 29, and is longitudinally along the first rainwater guiding lip 26 between the first rainwater guiding lip 26 and the first sealing lip 28. A first gutter 27 extending in the direction is formed.

  Further, on the outer side surface of the vehicle inner side wall 23 of the mounting base 19, a decorative lip 30 that protrudes toward the vehicle inner side and has a tip curved toward the mounting base 19 is integrally formed so as to extend in the longitudinal direction. When the upper weather strip 13 is attached to the flanges 16 and 17, a terminal of an interior member (not shown) of the vehicle is inserted between the decorative lip 30 and the mounting base 19.

  The upper weather strip 13 includes a hollow seal portion 20, a part of the retaining lip 24 (for example, the retaining lip 24 on the distal end side of the vehicle outer side wall 22), the distal end side of the first rainwater guiding lip 26, and the first sealing lip 28. The tip side, the tip side of the contact lip 29 and the decorative lip 30 are formed of an EPDM sponge material (for example, a material having a specific gravity of about 0.6 after molding) that is a flexible foam material, and the other portions. (The mounting base 19, the remaining holding lip 24, the base side of the first rainwater induction lip 26, the base side of the first seal lip 28, the base side of the decorative lip 30, etc.) are harder than the EPDM sponge material. EPDM solid material (for example, a material having a durometer hardness of about 70 degrees HDA according to JISK7215). The upper weather strip 13 has been vulcanized subsequent to extrusion.

  On the other hand, as shown in FIG. 3, the lower weather strip 14 is different from the upper weather strip 13 in that the first rainwater induction lip 26 is omitted, and the other configuration is the same as the upper weather strip 13. It is. That is, the lower weather strip 14 is integrally formed with the mounting base 19 and the hollow seal portion 20 in which the core material 21 is embedded by extrusion molding. Further, the mounting base 19 has the holding lip 24 and the first seal. The lip 28, the contact lip 29, and the decorative lip 30 are integrally formed. When the lower weather strip 14 is attached to the flanges 18 and 17, a terminal such as a floor carpet 31 that is an interior member of the vehicle is inserted between the decorative lip 30 and the mounting base 19.

  Next, the structure of the joint portion 15 of the weather strip 12 (that is, the joint portion 15 between the upper weather strip 13 and the lower weather strip 14) and its peripheral portion will be described with reference to FIGS.

  As shown in FIG. 7, the joint portion 15 is formed by injection molding of EPDM sponge material so that the outer shape (however, the outer shape of the portion excluding the second rainwater induction lip 33 described later) is the outer shape of the lower weather strip 14. An insertion groove 32 into which the flange 17 is inserted is formed in a portion corresponding to the mounting base portion 19, which is formed to have substantially the same shape.

  Further, as shown in FIGS. 4 to 6, the upper weather strip 13 has a first rainwater induction lip 26 and a first seal lip 28 to a position retracted by a predetermined dimension from the terminal (that is, the joint portion 15). Each of them is cut and removed at the boundary with the mounting base 19. In the portion of the upper weather strip 13 where the first rainwater induction lip 26 is removed, a second rainwater induction lip 33 is formed by injection molding, and the first rainwater induction lip 26 and the second rainwater are formed. The guide lip 33 is joined so as to be continuous. In addition, a second seal lip 34 is formed by injection molding at a portion of the upper weather strip 13 where the first seal lip 28 is removed, and the first seal lip 28, the second seal lip 34, Are joined so as to be continuous.

  The projecting length of the second rainwater guiding lip 33 gradually increases as it proceeds in the direction of the end of the upper weather strip 13, and the second rainwater guiding lip 33 curves below the first rainwater guiding lip 26 and is oblique to the longitudinal direction. The tip end portion is finally formed in substantially the same direction as the second seal lip 34. Thereby, when the weather strip 12 is attached to the flanges 16 to 18, the second rain water is disposed between the second rain water guiding lip 33 and the second seal lip 34 at the lower end portion of the upper weather strip 13. A second rain gutter 35 extending along the guide lip 33 is continuous with the first gutter 27 and is formed so as to extend obliquely downward away from the mounting base 19.

  At the lower end portion of the upper weather strip 13, the second seal lip 34 and the contact lip 29 are elastically deformed and come into contact with the base side of the flange 17, so that the space between the mounting base 19 and the flange 17 is the second seal lip. 34 and the contact lip 29 are sealed. Further, the second rainwater guide lip 33 and the second seal lip 34 are integrated at the lower end side, and a second rain gutter formed between the second rainwater guide lip 33 and the second seal lip 34. 35 is finished smoothly.

  4 and 7, when the weather strip 12 is mounted on the flanges 16 to 18, the tip of the second rainwater induction lip 33 is connected to the body panel 11 and the housing 36 of the rear combination lamp. By sandwiching them in between, the tip end portion of the second rainwater guiding lip 33 is deformed along the vehicle body panel 11 and is brought into close contact with the vehicle body panel 11.

  The joint 15, the second rainwater induction lip 33, and the second seal lip 34 are integrally formed by injection molding of an EPDM sponge material (for example, a material having a specific gravity of about 0.6 after molding) which is a foam rubber material. ing. When the joint 15, the second rainwater induction lip 33, and the second seal lip 34 are formed, the end of the hollow seal portion 20 of the upper weather strip 13 and the hollow seal portion 20 of the lower weather strip 14 are formed. For forming the joint 15, the second rainwater induction lip 33, and the second seal lip 34 in a state where one side and the other side of the core (not shown) are respectively inserted into the end portions. After setting the end of the upper weather strip 13 and the end of the lower weather strip 14 in the injection mold having the cavity, the EPDM sponge material is injected into the cavity of the injection mold to join the joint 15 and the second rainwater. The induction lip 33 and the second seal lip 34 are integrally molded and heated. Accordingly, the second rainwater induction lip 33, the second seal lip 34, and the joint portion 15 are formed, and the upper weather strip 13 and the lower weather strip 14 are vulcanized and joined via the joint portion 15. After molding, the core of the molding die is taken out from the center core outlet 37 (see FIG. 5) formed in advance at a predetermined location of the hollow seal portion 20 of the lower weather strip 14.

  When the weather strip 12 is mounted on the flanges 16 to 18, a non-drying sealer 38 (see FIGS. 2 to 6) is filled between the vehicle outer side wall 22 and the vehicle inner side wall 23 of the mounting base 19. It is good to keep.

  As shown in FIG. 2, when the back door 25 is opened, rain water that flows from the upper surface of the back door 25 to the front of the vehicle, rain water that flows from the roof upper surface of the vehicle body panel 11 to the rear of the vehicle, and the like is formed along the edge of the back door opening. The roof gutter 39 flows down, but rain water or the like accumulated in the roof gutter 39 may flow toward the upper weather strip 13. Rainwater or the like flowing from the roof gutter 39 toward the upper weatherstrip 13 flows into the first gutter 27 formed along the first rainwater guide lip 26 of the upper weatherstrip 13, and then the first rain gutter 27. In the rain gutter 27 and down toward the lower weather strip 14.

  In the present embodiment, a second rainwater guide lip 33 is formed at the lower end portion of the upper weather strip 13, and the second rain gutter 35 extending along the second rainwater guide lip 33 is used as the first rain gutter 27. And is formed so as to extend obliquely downward away from the attachment base portion 19, so that rainwater flowing in the first rain gutter 27 formed along the first rainwater guide lip 26 of the upper weather strip 13 can be removed. The second rain gutter 35 can be made to flow in the second rain gutter 35 formed along the second rain water guide lip 33, and the second gutter 35 is caused to flow away from the mounting base portion 19 of the weather strip 12. Can be drained. As a result, even when the rain weather guiding lip is not provided in the lower weather strip 14, the rain water flowing in the first rain gutter 27 formed along the first rain water guiding lip 26 of the upper weather strip 13 is prevented from flowing into the lower weather strip. It is possible to prevent the strip 14 from entering the inside of the vehicle, and to improve waterproofness.

  Furthermore, in the present embodiment, a first seal lip 28 is formed on the front side of the first rainwater guiding lip 26 on the outer side surface of the mounting base 19 of the upper weather strip 13, and the lower end of the upper weather strip 13 is formed. Since the second seal lip 34 joined to the end of the first seal lip 28 is formed in the portion (the portion from which the first seal lip 28 has been removed), the first seal lip 28 and the second seal lip 28 The two sealing lips 34 can seal between the mounting base 19 and the flange 17, and can effectively prevent rainwater and the like from entering between the mounting base 19 and the flange 17.

  In the present embodiment, the joint 15, the second rainwater induction lip 33, and the second seal lip 34 are integrally formed by injection molding of a flexible EPDM sponge material. 33 and the second seal lip 34 can be efficiently formed into a shape that can sufficiently perform the function. Moreover, the second rainwater induction lip 33 and the second seal lip 34 can be formed at the same time as the joining portion 15 is formed and the upper weather strip 13 and the lower weather strip 14 are joined. Can be improved.

  In the present embodiment, the first rainwater induction lip 26 is removed from the end of the upper weather strip 13 to a position retracted by a predetermined size, and the second rainwater induction lip 26 is removed from the portion where the first rainwater induction lip 26 is removed. Since the lip 33 is formed so that the first rainwater induction lip 26 and the second rainwater induction lip 33 are joined continuously, the longitudinal dimension of the second rainwater induction lip 33 is ensured to be long. The second rainwater guide lip 33 and the second rain gutter 35 can be gently curved so that rain water or the like flows smoothly in the second rain gutter 35 without stagnation. In addition, the first rainwater induction lip 26 and the second rainwater induction lip 33 can be joined with a good appearance, and the design can be improved.

  Further, in this embodiment, the first seal lip 28 is removed to a position retracted by a predetermined dimension from the end of the upper weather strip 13, and the second seal lip 34 is attached to the portion where the first seal lip 28 is removed. Since the first seal lip 28 and the second seal lip 34 are joined so as to be continuous, the first seal lip 28 and the second seal lip 34 can also be joined with good appearance. Thus, the design properties can be further improved.

  In the present embodiment, the second rainwater induction lip 33 and the second seal lip 34 are integrated on the lower end side, so that the gap between the second rainwater induction lip 33 and the second seal lip 34 is integrated. The second gutter 35 formed in the can be smoothly terminated.

  In the above embodiment, the joint 15 and the second rainwater induction lip 33 are integrally formed by injection molding. However, the second rainwater induction lip formed separately from the joint 15 is used as the joint 15 or You may make it attach to the vicinity by melt | fusion, adhesion | attachment, etc.

  Further, the second rainwater guide lip 33, the second seal lip 34, the second rain gutter 35 and the like are not limited to the shapes and materials described in the above embodiments, and may be appropriately changed.

It is a schematic block diagram of the whole weather strip in one Example of this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a partial cross section front view of a junction part and its peripheral part. It is a partial cross section side view of a junction part and its peripheral part. It is CC sectional drawing of FIG. It is DD sectional drawing of FIG. It is a cross-sectional view of a conventional weather strip.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Car body panel, 12 ... Weather strip, 13 ... Upper weather strip, 14 ... Lower weather strip, 15 ... Joint part, 16-18 ... Flange, 19 ... Mounting base, 20 ... Hollow seal part, 24 ... Holding lip, 25 ... back door, 26 ... first rainwater induction lip, 27 ... first rain gutter, 28 ... first seal lip, 33 ... second rainwater induction lip, 34 ... second seal lip, 35 ... second Rain gutter

Claims (7)

A weather strip for a long vehicle having a mounting base that is mounted so as to sandwich a flange provided along an opening edge of the vehicle back door from both the inside and outside of the vehicle,
The weather strip includes an upper weather strip mounted along the upper side of the back door opening edge and a lower weather strip mounted along the lower side of the back door opening edge. Joined through the joint,
A first rainwater guide lip projecting toward the vehicle exterior side is provided on the vehicle outer side surface of the mounting base portion of the upper weather strip so as to extend in the longitudinal direction, whereby the first rainwater guide lip is extended along the first rainwater guide lip. A gutter is formed to extend in the longitudinal direction,
By providing a second rainwater induction lip joined to the end of the first rainwater induction lip at the joint and / or its vicinity so as to extend in a direction different from the longitudinal direction, the second rainwater induction lip is provided. A weatherstrip for a vehicle, wherein the second rain gutter is formed so as to extend in a direction away from the mounting base while continuing to the first gutter. A first seal lip is formed on the vehicle outer side surface of the mounting base portion of the upper weather strip so as to protrude toward the vehicle outer side from the first rainwater guiding lip toward the vehicle outer side, and contact the root side of the flange.
The second seal lip joined to the end of the first seal lip is formed integrally with the second rainwater guiding lip at the joint and / or in the vicinity thereof. The weather strip for a vehicle according to 1.   The weather strip for a vehicle according to claim 1, wherein the joint portion and the second rainwater induction lip are integrally formed by injection molding.   The weather strip for a vehicle according to any one of claims 1 to 3, wherein the joint portion and the second rainwater induction lip are formed of a foamed rubber material.   The first rainwater induction lip is removed from the end of the upper weatherstrip to a position retracted by a predetermined dimension, and the second rainwater induction lip is formed at a portion where the first rainwater induction lip is removed. The weather strip for a vehicle according to any one of claims 1 to 4, wherein the first rainwater induction lip and the second rainwater induction lip are joined so as to be continuous.   The first seal lip is removed to a position retracted by a predetermined dimension from the end of the upper weather strip, and the second seal lip is formed in a portion where the first seal lip is removed, and the first seal lip is formed. The weather strip for a vehicle according to claim 2, wherein the seal lip and the second seal lip are joined so as to be continuous.   The weather strip for a vehicle according to claim 2 or 6, wherein the second rainwater induction lip and the second seal lip are integrated on a lower end side.

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