JP2020050123A - Outer weather strip - Google Patents

Abstract

To provide an outer weather strip which achieves improvement of fixing power against external force in a vehicle fore and aft direction with a simple structure.MEANS FOR SOLVING THE PROBLEM: A side wall cutout part 15 is provided at an outer weather strip 1, and a panel engagement part 31 is provided on an outer panel 30. The outer weather strip 1 is fixed to the outer panel 30 by a fixing tool 2 including a fixture protruding part 22 which engages with the side wall cutout part 15 and a hook part 21 which engages with the panel engagement part 31.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an outer weather strip attached to a belt line of an automobile door.

  The outer weather strip that covers the edge of the outer panel of the car door and seals with the door glass at the lower edge of the car door belt line, that is, the lower part of the opening of the car door that opens and closes when the door glass moves up and down. Is installed.

  For example, the main body of the outer weather strip has a substantially inverted U-shaped cross section, and an outer side wall and an inner side wall are continuously formed to form a substantially inverted U-shaped cross section. A lip is formed toward the door glass from above to elastically contact and seal the door glass. Also, in order to improve the sealing performance and the wiping performance of water droplets, a plurality of the lips are provided so as to be substantially parallel to the vertical direction of the vehicle.

  The outer weather strip is attached to the automobile door so that the outer panel is sandwiched between the outer side wall and the inner side wall. In order to securely fix the outer panel to the outer panel, for example, Japanese Unexamined Patent Application Publication No. 2017-178117 describes As described above, an end cap having a fixing portion such as a clip structure is inserted from a terminal portion of the outer weather strip and locked to the outer panel.

  At this time, in the terminal portion into which the end cap of the outer weather strip is inserted, after extruding the outer weather strip, for example, the lip and the inner side wall are cut off at a predetermined length from the terminal portion, and then the end cap is removed. However, if an external force is applied in the vehicle front-rear direction, the inserted end cap will fall out of the outer weather strip, and the outer weather strip will inevitably fall out of the door, so the end cap and outer weather strip are welded or bonded. It is necessary to perform a joining step by such a method.

JP 2017-178117 A

However, in this case, it is necessary to cut off the lip or the like after extrusion molding of the outer weather strip main body, insert the end cap, and join the outer weather strip main body and the end cap, which complicates the manufacturing process.

  Further, if a lip for sealing between the terminal glass and the door glass is cut off at the terminal portion, the sealing performance at the terminal portion deteriorates. For example, such as a sashless door, in which the door glass exists up to the vicinity of the terminal section, this is remarkable.

  In addition, in the above case, the cut marks of the outer weather strip are exposed, but if the molding to be attached to the vertical side of the door opening is thin or there is no molding, it cannot be concealed, and the appearance is deteriorated. Resulting in.

In order to solve the above-mentioned problem, the present invention according to claim 1 extends in the vehicle front-rear direction at a belt line of an automobile door, and extends from an inner side wall, an inner side wall, and a door glass from the inner side wall to the door glass. An outer weather strip having a projected lower lip and an upper lip projected toward the door glass from above the lower lip of the vehicle inner side wall, via a fixing member separate from the outer weather strip. Fixed to the door, the outer weather strip fixing structure,
In the terminal portion on the vehicle rear side of the outer weather strip, a cut-out portion is provided in which the lower inner lip and the inner side wall near the root of the lower lip are cut away at a portion farther to the front of the vehicle than the terminal portion. ,
At a position where the cutout portion is provided, a side wall cutout portion is provided in which a part of the inner side wall is further cut out,
In the outer panel of the door, a panel engaging portion is provided at a position corresponding to the side wall cutout portion,
The fixing tool includes a main body, a fixing protrusion protruding from the main body and engaging with the side wall cutout, and a hook engaging with the panel engaging portion.
An outer weather strip fixing structure in which the outer weather strip fitted to the outer panel is fixed by the fixing tool.

  According to the first aspect of the present invention, in the terminal portion on the vehicle rear side of the outer weather strip, a cut-out portion in which a lower lip and an inner side wall near the base of the lower lip are cut away at a portion farther in front of the vehicle than the terminal portion. Since the lower lip is left in addition to the upper lip in the terminal portion, the same sealing performance as that of the portion where the cutout portion of the outer weather strip is not provided can be maintained.

  In addition, when the outer weather strip is attached to the door, when viewed from outside the vehicle, the upper lip covers the cutout and the fasteners and the inside of the door below the belt line are visible at the part where the outer cut is provided. Therefore, the same appearance as that of the portion of the outer weather strip where the cut portion is not provided can be maintained.

  Further, in the present invention of claim 1, at the position where the above-mentioned cutout portion is provided, a side wall cutout portion is further provided by cutting off a part of the inner side wall, and the outer panel of the door corresponds to the side wall cutout portion. A panel engaging portion is provided at a position, the fixing tool includes a main body portion, a fixed convex portion protruding from the main body portion and engaging with the side wall cutout portion, and a hook portion engaging with the panel engaging portion, Since the outer weather strip fitted to the outer panel is fixed by the fixing tool, even if the joining step is omitted, the fixing tool does not come off from the outer weather strip in response to input of an external force in the vehicle front-rear direction, The manufacturing process can be simplified.

  According to a second aspect of the present invention, there is provided a structure in which a claw projecting from the tip of the outer side wall to the inside of the vehicle is provided, and the outer weather strip is fixed by engaging with the tip of the hook. Therefore, the claw portion controls the displacement of the outer weather strip by engaging the hook portion with the hook portion with respect to the displacement of the outer weather strip caused by the external force in the vehicle vertical direction, for example, the frictional force of opening and closing the glass, It can be fixed firmly against external forces in the vertical direction of the vehicle.

  The sealing performance can be maintained at the terminal portion on the rear side of the vehicle to which the end cap is attached, the appearance is also maintained, and the manufacturing process can be simplified by eliminating the joining process of the end cap. Can be firmly fixed in the front-rear direction and the vehicle up-down direction.

FIG. 4 is a perspective view of the vicinity of a belt line before the outer weather strip of the present invention is fitted to the outer panel, viewed from the inside of the vehicle. FIG. 2 is a cross-sectional view of the vicinity of a cutout portion in a state where the outer weather strip of FIG. 1 is fitted to an outer panel. FIG. 3 is a cross-sectional view of a state where the fixing tool is inserted from the state of FIG. 2 and the outer weather strip is fixed to the outer panel by the fixing tool. FIG. 4 is a perspective view of the state of FIG. 3 as viewed from the inside of the vehicle. FIG. 2 is a side view of the vehicle, viewed from the outside of the vehicle, near a belt line to which the outer weather strip of the present invention is attached.

  An outer weather strip according to an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 5, the outer weather strip 1 is attached to a belt line of the door 3, that is, a lower edge of an opening of the door 3 that opens and closes when the door glass 4 moves up and down. , And the space between the door glass 4 and the door glass 4 is sealed. Although FIG. 5 shows the left front door of a four-door type automobile, the present embodiment can be applied to a rear door and a right side door, or only a front door as in a two-door type.

  As shown in FIG. 1, the outer weather strip 1 is fitted to a flange-shaped upper edge of an outer panel 30 of the door 3, that is, a belt line which is a lower edge of a door opening. The outer weather strip 1 itself holds the outer panel 30, and a panel engaging portion 31 formed by punching the outer panel 30 corresponds to a position where the side wall cutout 15 of the outer weather strip 1 exists. It is provided.

  In this state, the fixing tool 2 is inserted between the inner side wall 11 and the outer panel 30 from below the cutout 14 and the side wall cutout 15 to fix the outer weather strip 1 to the outer panel 30. . The fixture 2 will be described later.

  The main body of the outer weather strip 1 includes a vehicle exterior side wall 10, a vehicle interior side wall 11, a lower lip 12 protruding from the vehicle interior side wall 11 toward the door glass 4, and a lower lip 12 of the vehicle interior side wall 11. And an upper lip 13 projecting toward the door glass 4.

  The lower lip 12 is cut off over a predetermined length at a portion of the outer weather strip 1 that is farther forward than the terminal portion on the vehicle rear side, and the inner side wall 11 near the base of the cut lower lip 12 is also formed. At the same time, the resection is performed to provide the resection portion 14. At a position where the cutout portion 14 is provided, a side wall cutout portion 15 is provided by further cutting out a part of the inner side wall 11.

  For this reason, the terminal portion can be sealed by the lower lip 12 together with the upper lip 13, so that the same sealing performance as that of the portion of the outer weather strip 1 where the cutout portion 14 is not provided can be maintained.

  Also, since the upper lip 13 is left in the portion where the cutout portion 14 is provided, when the outer weather strip 1 is attached to the door 3 when viewed from the outside of the vehicle. Since the upper lip 13 covers and hides the cutout portion 14 so that the inside of the door 3 and the fixture 2 cannot be seen, the same appearance as the portion of the outer weather strip where the cutout portion is not provided can be maintained.

  FIGS. 2 to 4 show a fixing structure of the outer weather strip 1 using the fixing tool 2 which is not integrated with the outer weather strip.

  As shown in FIG. 2, the fixing device 2 includes a plate-shaped main body 20, a hook 21 provided at one end of the main body 20, and a fixed protrusion provided at an end opposite to the end where the hook 21 is provided. It has a part 22.

  The material of the fixture 2 has spring elasticity. In particular, the hook portion 21 is to bend and restore like a spring with the connection portion with the main body portion 20 as a fulcrum. Specifically, a thermoplastic resin (a thermoplastic elastomer, a polypropylene resin, a nylon resin, a polyester resin, or the like), a synthetic rubber, a spring steel, or the like can be used. From the viewpoint of weight reduction, a thermoplastic resin is preferable.

  As described above, the fixture 2 is inserted between the inner side wall 11 and the outer panel 30 while the outer weather strip 1 is fitted to the outer panel 30 while the outer weather strip 1 is fitted to the outer panel 30. At this time, the fixture 2 is inserted with the connecting portion between the hook portion 21 and the main body portion 20 at the top in a state where the hook portion 21 is bent so as to approach the main body portion 20, and the front end of the hook portion 21 is engaged with the panel. When the hook 31 reaches the portion 31, the hook portion 21 is engaged with the panel engaging portion 31 so as to pass from the inside to the outside of the vehicle as shown in FIG. 3.

  Further, at this time, as shown in FIG. 3, when the claw portion 16 protruding inward from the front end of the outer side wall 10 comes into contact with and engages with the lower side of the front end of the hook portion 21, the outer weather strip 1 is moved up and down in the vehicle. Even when an external force in the direction is applied, the panel is firmly fixed to the panel engaging portion 31 via the fixing tool 2.

  For example, when the door glass 4 opens and closes in the vertical direction, the outer weather strip 1 slides with the lower lip 12 and the upper lip 13 so that the outer glass strip 1 is pushed outward by the door glass 4 and an external force is further applied in the vertical direction. Then, the user tries to move so as to separate from the outer panel 30, but the movement is restricted by the above-mentioned structure, and the outer panel 30 does not separate.

  The fixture 2 may be engaged with the outer panel 30 at the lower end of the main body 20 in the attached state. As a result, the movement of the fixture 2 downward of the vehicle is restricted, and the outer weather strip 1 is more strongly fixed. As shown in FIG. 3, in the present embodiment, the projection 23 is further provided, and the projection 23 is engaged with the outer panel 30 in a mounted state, so that the outer panel 30 can be more strongly fixed.

  The projection 23 projects from the vicinity of the lower end of the main body 20 to the side opposite to the fixed projection 22, and is engaged with the upper end of the outer panel 30. The width between the inner side wall 11 of the outer weather strip 1 and the outer panel 30 fluctuates due to a manufacturing error or deformation at the time of mounting, but the projection 23 absorbs this fluctuation and reliably engages with the outer panel 30. In addition, the movement of the fixture 2 downward of the vehicle can be restricted.

  In addition, in a state where the outer weather strip 1 is fixed by the fixing tool 2 as described above, as shown in FIG. 4, the fixing convex portion 22 formed to protrude from the surface of the main body 20 of the fixing tool 2 to the vehicle interior. However, at the position where the cutout portion 14 of the outer weather strip 1 is provided, it engages with the side wall cutout 15 provided by further cutting out a part of the remaining inner side wall 11.

  Therefore, when an external force is applied to the outer weather strip 1 in the vehicle front-rear direction, the movement of the outer weather strip 1 is restricted by the side wall cutout 15 being hooked on the fixed projection 22.

  In the present embodiment, the fixed convex portion 22 is formed in a substantially rectangular shape when viewed from the inside of the vehicle when attached, and the end of the side wall cutout portion 15 to be engaged in the vehicle front-rear direction is linearly substantially perpendicular to the belt line. Formed. Therefore, the outer weather strip 1 can be fixed with the strongest engagement against an external force in the direction along the belt line.

  At this time, as shown in FIG. 4, the vehicle interior surface of the fixed protrusion 22 is formed substantially flush with the vehicle interior surface of the vehicle interior side wall 11. Therefore, the fixed convex portion 22 does not protrude too much beyond the inner side wall 11 and does not contact the door glass 4.

  On the other hand, when the projection height of the fixed projection 22 from the main body 20 is low, when the outer weather strip 1 attached to the outer panel 30 is displaced in the vehicle width direction, the fixed projection 22 is not moved. Since the outer weather strip 1 may come off from the side wall cutout 15 and fall off, the protrusion height should be set so as to engage at least half or more of the thickness of the side wall cutout 15 in the mounted state. Is desirable.

  As for the shapes of the fixing convex portion 22 and the side wall cutout portion 15, for example, ease of insertion of the fixing tool 2 is considered in addition to the above-described external force direction. For example, if the width of the fixing protrusion 22 in the vehicle front-rear direction is smaller than the width of the opening of the side wall cutout 15, the fixing tool 2 will not be caught by the opening of the side wall cutout 15 when inserted from below the vehicle. Easy to insert.

  In the present embodiment, the outer side wall 10 and the inner side wall 11 of the outer weather strip 1 are formed of a hard material. As the hard material, for example, a hard synthetic resin such as polypropylene, a hard olefin-based thermoplastic elastomer (TPO), or a hard solid rubber can be used. As the hard synthetic resin, a polyethylene resin, a nylon resin, a vinyl chloride resin, or the like can be used in addition to the polypropylene resin. Further, it may be formed of a metal such as stainless steel, iron, or aluminum.

  On the other hand, the lower lip 12 and the upper lip 13 are formed of a material softer than the above-described hard material. As the soft material, a soft synthetic resin, a dynamically crosslinked thermoplastic elastomer (TPV), or a soft rubber (EPDM, chloroprene rubber, or the like) can be used.

  In the present embodiment, polypropylene resin is selected as a hard material and TPV is selected as a soft material, and they are formed by co-extrusion. For example, when soft rubber is used, hot air is applied by a vulcanization tank after extrusion. Vulcanization is carried out by a usual method such as vulcanization or high-frequency vulcanization.

  In the present embodiment, since the outer side wall 10 is formed of a hard material, the outer side wall 10 protrudes from the tip of the outer side wall 10 toward the outer panel 30, and is made of a soft material such that the outer side wall 10 is in soft contact with the outer panel 30. A lip 17 was provided. Therefore, even if the tip of the vehicle outer side wall 10 comes into contact with the outer panel 30 due to vibration or the like, abnormal noise such as a hitting sound is not generated.

  The implementation of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the purpose of the present invention.

  For example, in accordance with manufacturing variations of the outer panel 30 and differences in the shape of each type of vehicle, the outer weather strip 1 is more easily held between the outer panel 30 and the inner surface of the outer weather strip 1 from the inner panel. A protrusion or a lip may be formed. By doing so, the outer weather strip 1 is less likely to be displaced during the work of fixing with the fixing tool 2, and the fixing work of the outer weather strip 1 is improved even after being fixed.

  Further, for example, the material forming the fixing tool 2 may be different between the main body 20 and the hook 21. For example, by forming the main body 20 from polypropylene and forming the hook 21 and the main body in the vicinity thereof from a thermoplastic elastomer, the rigidity can be changed according to the portion. In this case, the rigidity of the main body 20 can be increased as compared with the case where the main body 20 is formed of the same material as the hook 21 requiring elastic deformation, and the fixing tool 2 can be deformed during insertion. Can be prevented.

  Alternatively, the width of the connecting portion between the main body 20 and the hook 21 may be made smaller than that of the main body, or a groove may be provided inside the connecting portion between the main body 20 and the hook 21 to locally reduce the thickness. However, the rigidity is locally lower than that of the main body portion 20 and can be easily deformed, and the same effect as in the above case where the material is changed depending on the portion can be obtained. In other words, even if the same material is used for the fixing device 2 as a whole, only the rigidity of the deformed portion can be changed while maintaining the rigidity of the main body 20.

  When the width of the portion where the main body 20 and the hook 21 are connected to each other is made smaller than that of the main body as described above, it is more preferable that the width of the main body 20 be made narrower as approaching the connection. Since the fixing part 2 is inserted at the top of the connecting part, the pressure for inserting the fixing part 2 can be increased by reducing the width thereof, and the fixing part 2 can be easily inserted.

  Further, for example, although the projection 23 is formed in a projection shape, the thickness of the main body 20 may be increased. In this case, the thickness of the hook portion 21 and the main body portion 20 should not be increased at least in a portion where the hook portion 21 contacts when the hook portion 21 of the main body portion 20 is bent and attached. It is desirable to keep the sum smaller than the width between the inner side wall 11 and the outer panel 30.

  Further, for example, the protrusion 23 may be provided so as to come into contact with the inner surface of the outer panel 30 when the door glass 4 slides. In this case, the movement of the outer weather strip 1 upward of the vehicle can be further restricted, and the fixing force of the outer weather strip 1 is improved.

  Further, similarly to the conventional outer weather strip, an end cap may be attached to an end of the outer weather strip 1 to cover the end, thereby preventing intrusion of water or improving the appearance. . In this case, the end cap may be provided with a clip structure as in the related art and fixed to the outer panel 30. Since the outer weather strip 1 is fixed to the external force in the vehicle front-rear direction by the fixing structure of the present invention, the outer weather strip 1 does not fall off regardless of the presence or absence of the end cap, and the end cap is fixed to the outer panel 30 with a clip. Even if it does, the end cap does not come off from the outer weather strip.

DESCRIPTION OF SYMBOLS 1 Outer weather strip 2 Fixture 3 Door 4 Door glass 5 Mall 10 Outer side wall 11 Inner side wall 12 Lower lip 13 Upper lip 14 Cutout part 15 Side wall cutout part 16 Claw part 17 Contact lip 20 Body part 21 Hook part 22 Fixation Projection 23 Projection 30 Outer panel 31 Panel engagement part

Claims (2)

An outer side wall, an inner side wall, a lower lip protruding from the inner side wall toward the door glass, and a lower lip of the inner side wall extending in a vehicle front-rear direction at a belt line of an automobile door An outer weather strip fixing structure in which an outer weather strip having an upper lip protruding toward the door glass from above is fixed to the door via a fixing tool separate from the outer weather strip. And
At a terminal portion on the vehicle rear side of the outer weather strip, a cutout portion is provided at a portion farther to the front of the vehicle than the terminal portion, by cutting the lower side lip and the inner side wall near the root of the lower lip. ,
At a position where the cutout portion is provided, a side wall cutout portion is provided in which a part of the inner side wall is further cut out,
In the outer panel of the door, a panel engaging portion is provided at a position corresponding to the side wall cutout portion,
The fixing device includes a main body, a fixing protrusion protruding from the main body and engaging with the side wall cutout, and a hook engaging with the panel engaging portion.
An outer weather strip fixing structure in which the outer weather strip fitted to the outer panel is fixed by the fixing tool.   The outer weather strip fixing structure according to claim 1, wherein a claw projecting from the tip of the outer side wall to the inside of the vehicle is provided, and the claw is engaged with the tip of the hook.

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