JP6204066B2 - Door weather strip - Google Patents

Description

  The present invention relates to a door weather strip of an automobile, and in particular, a door in which a wide fin portion attached to a seal lip at an upper corner portion thereof is fixed to a door panel using a plate-like clip that is superposed on the fin portion. It relates to the structure of the weather strip.

  Conventionally, there is a structure described in Patent Documents 1 and 2 as a structure of this type of door weather strip. In these conventional techniques, an anchor portion is formed so as to protrude from the back surface of a flat clip body that is superposed from above the fin portion, and this anchor portion is inserted through the insertion hole of the fin portion and then the door panel side. It is designed to be fitted and held in the mounting hole. In addition to the anchor part, in order to relatively position the clip and the fin part, or to prevent the clip part from falling off, a plurality of claw parts or hooks are formed in the clip body, and the claw part or The collar is locked to a part of the fin.

JP 2004-276704 A JP 2011-51404 A

  In the technology described in Patent Document 1 in which a plurality of claws are formed in the clip body in the clip in addition to the anchor portion, for example, a door weather strip with a clip is directed from a door weather strip production plant to a car manufacturer's vehicle assembly line. When shipping is assumed, the effect of preventing the clip from falling off the door weatherstrip is insufficient, and the clip may fall off during transportation or when hung on a hanger on the line side of the vehicle assembly line .

  On the other hand, in the technique described in Patent Document 2 in which a plurality of flanges are formed in the clip body in addition to the anchor portion in the clip, the clip can be prevented from dropping off from the weather strip to some extent. Since the collar part protrudes, it is necessary to secure a space between the door panel and the fin part in order to avoid interference between the door panel and the collar part, and the apparent thickening of the fin part is inevitable. This is not preferable.

  In addition, as will be described later as a specific example of the present invention, a flat belt-like portion may be formed extending downward from the fin portion, and a door weather strip with a clip attached to such a belt-like portion is first provided. When suspended on the hanger on the line side of the vehicle assembly line as described above, the clip will fall off the door weather strip due to the force of the clip coming off due to the belt-like part hanging down due to its own weight. Yes, there is still room for improvement.

  The present invention has been made paying attention to such a problem, and provides a structure of a door weather strip that improves the retaining property of the clip with respect to the door weather strip and prevents the clip from falling off.

  The present invention provides a door weather strip to be mounted around an automobile door, and a door panel using a plate-like clip in which a wide fin portion attached to a seal lip at the upper corner portion is superposed on the fin portion. It is assumed that the door weatherstrip structure is fixed to the door. In addition, a clip insertion hole that penetrates in the thickness direction is formed in the fin portion, and the back surface of the base portion of the clip is inserted into the clip insertion hole and then into the clip mounting hole on the door panel side. An anchor portion to be fitted and held is formed to protrude. Further, the fin portion is formed with a build-up bead portion in the vicinity of at least a part of the lower edge portion of the base portion, and the build-up bead portion is submerged between the fin portion and the build-up bead portion. A through-hole is formed, and a locking projection is formed at a position corresponding to the through-hole in the base portion of the clip after being inserted through the through-hole and locked to the build-up bead. It is.

  In this case, as described in claim 2, when a flat belt-like portion independent from the seal lip is formed extending downward from the fin portion, this corresponds to the start end portion of the belt-like portion. It is assumed that the above-described built-up bead portion is formed at a position.

  Further, in order to further improve the retaining property of the clip, as described in claim 3, the base portion of the clip has a deformed rectangular shape, and one side portion close to the seal lip of the base portion is It is desirable to be sandwiched between the seal lip and the fin portion.

  More desirably, as described in claim 4, a relief hole formed in a fin portion overlapping with the build-up bead portion is formed as a through hole, and the locking projection portion is disposed on the side of the anti-build-up bead portion. It is assumed that a stepped portion is formed on the engaging protrusion so as to be hooked on the buildup bead portion.

  Similarly, according to a fifth aspect of the present invention, the locking projection is formed of a neck portion that lies in the through hole and a head portion that has a larger cross-sectional area than the neck portion.

  In addition, as described in claim 6, in the weather strip, the bent portion of the seal lip including the fin portion and the start end portion of the belt-shaped portion are formed by molding. .

  According to the first aspect of the invention, since the overlaid bead portion extends so as to cross over the locking projection formed on the lower edge portion of the base portion of the clip, The clip retainability is improved and the clip can be prevented from falling off. In addition, since the state in which the locking projection is retained and locked to the bead portion can be visually confirmed, the assembly state of the clip with respect to the fin portion is stabilized.

  According to the second aspect of the present invention, when a flat belt-like portion is formed extending downward from the fin portion, the door weather strip with a clip attached to such a belt-like portion is temporarily used as a vehicle assembly line. Even if it is hung and supported by the hanger on the line side, the clip does not fall off the door weather strip.

  According to the third aspect of the present invention, the positioning and holding property of the clip with respect to the fin portion is improved, and the effect of preventing the clip from dropping is further improved.

  According to the invention of claim 4, since the through hole has a relief hole formed in the fin portion that is superposed with the above-described build-up bead portion, it is possible to ensure a large thickness of the build-up bead portion, Furthermore, since the stepped portion on the side of the locking projection is caught by the build-up bead portion, the holding property of the clip is further improved, and the effect of preventing the clip from dropping off becomes remarkable.

  According to the fifth aspect of the present invention, the effect of preventing the locking projections from coming off by the head can be expected, so that the clip retainability is further improved and the clip drop-out preventing effect becomes more remarkable.

It is a front view of the rear door of a car. It is the enlarged view which looked at the Q section of Drawing 1 from the back side (indoor side). It is a figure which shows the state which removed the clip of FIG. It is a cross-sectional enlarged view along the AA line of FIG. It is a figure which shows 2nd Embodiment of this invention, Comprising: It is a figure corresponded in FIG. 4 of 1st Embodiment. FIG. 6 is a front view of the clip of FIG. 5 alone. It is a figure which shows 3rd Embodiment of this invention, Comprising: It is a figure corresponded in FIG. 4 of 1st Embodiment. It is a front view of the clip of FIG. It is a figure which shows 4th Embodiment of this invention, Comprising: It is a figure corresponded in FIG. 2 of 1st Embodiment. It is a cross-sectional enlarged view along the BB line of FIG.

  1 to 4 are views showing a specific first embodiment of a weather strip according to the present invention, FIG. 1 is a front view of a rear door of an automobile, and FIG. The figure seen from the room side. 3 shows a state in which the clip of FIG. 2 is removed, and FIG. 4 shows an enlarged cross-sectional view taken along line AA in FIG.

A rear door 1 of an automobile shown in FIG. 1 is a so-called sash door in which an arch-shaped door sash 2 is provided at the upper end of a door body 3, and a door weather strip 4 is attached to the outer periphery of the rear surface (FIG. 2). reference). As is well known, the door weather strip 4 is formed as a series of ring-shaped ones. However, in the door sash 2 corner portion shown in the Q portion in the figure, as shown in FIGS. In addition to a seal body 5 described later (corresponding to a seal lip in the claims) that is substantially elastically brought into contact with the panel opening, the seal body 5 is also formed integrally. It has the fin part 6 mentioned later. And it attaches to the door panel 8 (refer FIG. 4) of the door sash 2 with the separate clip 7 superposed and arrange | positioned at this fin part 6. As shown in FIG. As is well known, the door weather strip 4 includes a long extruded portion 4A that is extruded to have a uniform cross-sectional shape, a mold portion 4B that is bent according to the door sash 2 corner portion (Q portion), However, in this specification, the molded part 4B is indicated unless otherwise specified.

  The clip 7 is formed in a plate shape as a whole by, for example, a hard synthetic resin material, a metal material, or the like, and as shown in FIGS. 3 and 4, a deformed rectangular base portion 9 having a predetermined thickness, and the base portion 9. An anchor portion 10 that protrudes from the back surface (outside surface) and a lower end of the base portion 9 that protrudes from the lower end of the base portion 9 and passes through a through-hole 23 that will be described later. The latching protrusion 11 is made up of.

  One side portion 9A of the base portion 9 that is close to the seal body 5 is formed so as to match the bent portion of the seal body 5, and the groove portion 12 formed between the connection end portions of the seal body 5 and the fin portion 6. It is designed to be inserted and held.

  The anchor portion 10 has a rectangular tube shape, and a pair of stoppers 13 having a hook shape are formed on the outer surface of the tip portion. When the door weather strip 4 is attached to the rear door 1, a clip insertion hole 14 described later is provided. And the door weather strip 4 is fixed to the rear door 1 by being locked in the clip mounting hole 15 of the door panel 8. On the other hand, before the door weather strip 4 is attached to the door panel 8, that is, during transportation or in the vehicle assembly line, only the clip insertion hole 14 described later is inserted and held in the clip insertion hole 14. The Rukoto.

  The locking projection 11 is provided at a position corresponding to a later-described through hole 23 in a state where the clip 7 is attached to the door weather strip 4 so as to be offset to the opposite side of a later-described bead lower side 22A. 9 and a plate-like neck portion 16 which is thinner and narrower than the fin portion 6 and a half-moon head portion 17 which is formed at the lower end of the neck portion 16 and is thicker and wider than the neck portion 16. And is composed of.

  The neck portion 16 is configured in such a manner that the upper end side thereof overlaps with the lower end portion of the base portion 9 by the offset structure to the outdoor side, and the lower end side is formed with the lower edge portion 9C of the base portion 9 and the base end portion of the head portion 17. In the meantime, a concave stepped portion 18 is formed which is recessed toward the outdoor side and engages with a bead lower side portion 22A described later. At this time, based on the offset structure of the neck 16, the stepped portion 18 can be configured deeper.

The head 17 has a flat shape in which the upper end side serving as the base end side is formed in a flat shape parallel to the lower edge 9C of the base portion 9, and the lower end side serving as the distal end side is formed in an arc shape. The step portion 18 having a rectangular groove shape is formed between the lower edge portion 9C of the portion 9 and the bead lower side portion 22A is held. In addition, since the upper end portion of the head portion 17 is formed wider than the neck portion 16, a pair of engaging recesses recessed in the width direction is formed between the head portion 17 and the lower edge portion 9 </ b> C of the base portion 9. 24 is configured, and the engagement of the bead lower side portion 22A can be made stronger by the engagement with the engagement recess 24 .

  The door weather strip 4 is softly formed of a rubber material typified by a known EPDM or a synthetic resin material typified by TPO, and is substantially in a sealing function by elastic contact with a vehicle body panel (not shown). In addition to the hollow seal body 5 that exhibits the above, a fin portion 6 that is integrally formed with the seal body 5 and serves as a seating surface of the clip 7, and extends below the fin portion 6, and has a wide sash rear vertical A flat belt-like portion 19 that conceals the side portion 2A (see FIG. 1) from the indoor side. Further, the fin portion 6 and the belt-like portion 19 are continuously provided with a tongue-like panel seal lip 27 elastically contacting the door panel 8 on the side opposite to the seal body 5.

  The seal body 5 is composed of a hollow seal lip 20 that bulges toward the indoor side and a plurality of small piece lips 21, and is bent so that a substantially middle portion in the longitudinal direction follows a vehicle body panel (not shown).

  The fin portion 6 is configured in a plate shape that is substantially similar to the base portion 9, is formed to be wider and thinner than the seal body 5, and a clip insertion hole 14 through which the anchor portion 10 is inserted at a substantially central position thereof. Is formed through. Further, the fin portion 6 is formed with an L-shaped built-up bead portion 22 so as to surround the other side edge portion 9B and the lower side edge portion 9C of the clip 7.

  Further, at the position corresponding to the start end portion of the belt-like portion 19 in the fin portion 6 that overlaps with the bead lower side portion 22A of the build-up bead portion 22, the bead lower side portion 22A of the locking projection portion 11 passes through. A through hole 23 is formed across the fin portion 6 and the belt-like portion 19. When the clip 7 is mounted, the through hole 23 functions as an escape hole that avoids interference between the base portion 9 and the neck portion 16 that overlaps. In other words, a through hole 23 is formed by a relief hole formed in a portion of the fin portion 6 that overlaps with the bead lower side portion 22A.

  The bead lower side portion 22 </ b> A is provided in the form of cross-linking with respect to the through hole 23 with respect to the polymerization range due to the polymerization relationship with the through hole 23. With this configuration, when the clip 7 is mounted, as shown in FIG. 4 in particular, the neck portion 16 extends across the width direction to engage with the stepped portion 18.

  The belt-like portion 19 is formed in a form independent of the seal body 5 and extends to the state where the mold forming portion 4B and the extrusion forming portion 4A are combined, that is, the door waistline 3A (see FIG. 1). As shown in FIG. 4, it is formed so as to be slightly thinner than the fin portion 6, and is configured such that its interior surface is lower than the interior surface of the fin portion 6 by an amount corresponding to the thickness of the neck portion 16. . As a result, the locking projection 11 can be easily hidden from the bead lower side 22A. The belt-like portion 19 is provided with a clip hole 25, and the belt-like portion 19 is connected to the door panel 8 through a belt clip 26 inserted through the clip hole 25.

  The door weather strip 4 configured as described above is transported from the parts factory to the vehicle assembly factory with the clip 7 mounted in advance, and hung on a hanger (not shown) on the line side of the vehicle assembly factory. It will be supplied in the form. Therefore, the thin fin portion 6 and the belt-like portion 19 of the door weather strip 4 are likely to be elastically deformed due to shaking or its own weight, and the clip anchor portion and the claw portion or the hook portion are simply inserted into the door weather strip. In the conventional technology only, the clip may fall off the door weather strip during the transportation or on the vehicle assembly line side.

  However, in the door weather strip 4 according to the present invention, the clip 7 is provided with the locking projection 11, and the bead lower side 22 </ b> A extends so as to cross the neck 16 of the locking projection 11. Since the movement of the clip 7 in the removal direction is restricted by the binding force of the bead lower side 22A, the clip 7 can be firmly held in the door weather strip 4.

  Therefore, according to the door weather strip 4 according to the present invention, the retaining property of the clip 7 with respect to the door weather strip 4 can be enhanced, and the clip 7 can be prevented from falling off.

Further, since the through hole 23 is formed so as to pass through the lower side 22A of the bead, the locking projection 11 that passes through the through hole 23 does not protrude to the back side of the fin portion 6. Thus, it is not necessary to secure a space between the door panel and the fin portion in order to avoid interference between the door panel and the flange portion, and the apparent thickening of the fin portion 6 is not accompanied.

  In addition, since the locking projection 11 is inserted through the through-hole 23, the locking projection 11 can be visually confirmed to be locked to the bead lower side 22A. As a result of preventing the portion 11 from being forgotten to stop, the holding state of the clip 7 with respect to the door weather strip 4 becomes better.

  Further, since the through hole 23 is formed at the start end of the belt-like portion 19, the elastic deformation of the belt-like portion 19 is caused based on the locking structure of the bead lower side portion 22A with respect to the locking projection portion 11. Since the inconvenience spreading to the fin portion 6, that is, deformation in the peeling direction of the fin portion 6 with respect to the clip 7 is also restricted, the retainability of the clip 7 in the door weather strip 4 can be improved also from this viewpoint. Further, it is possible to more effectively prevent the clip 7 from dropping off due to the elastic deformation of the belt-like portion 19.

  Furthermore, since one side part 9A close to the seal body 5 in the base part 9 is also inserted and held in the groove part 12, the clip 7 is inserted into the clip insertion hole 14 of the anchor part 10. It is held on the door weather strip 4 on the basis of three holding actions of fitting and holding, tight binding by the bead lower side 22A of the locking projection 11 and fitting and holding of the one side 9A in the groove 12 Will be. As a result, the holding state of the clip 7 in the door weather strip 4 can be further improved.

  Moreover, since the latching protrusion part 11 is comprised by the neck part 16 which divides through the through-hole 23, and the head part 17 with a larger cross-sectional area than the said neck part 16, for example, by the wide head part 17 like the said engagement recessed part 24 A retaining effect can be expected.

  Furthermore, since the escape hole formed in the fin portion 6 overlapping with the bead lower side portion 22A is used as the through hole 23, the bead lower side portion 22A facing the through hole 23 can have a larger thickness. As a result, the lower bead lower portion 22A can be engaged with the stepped portion 18 more deeply. Thereby, the retainability of the clip 7 is further improved, and the effect of preventing the clip 7 from falling off becomes more remarkable.

  5 and 6 show a second embodiment of the present invention, in which only the locking projection 31 is changed based on the first embodiment. Therefore, below, only a different part from 1st Embodiment is demonstrated, and the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to each part which is common in FIG.

  In the second embodiment, the head portion 32 of the locking projection 31 is shorter in the vertical direction (smaller in area) than the head portion 17 according to the first embodiment, and the length of the stepped portion 18 in the vertical direction. And a rectangular shape as a whole.

  Therefore, according to the second embodiment, the same effect as that of the first embodiment can be obtained, and the head 32 is shortened in the vertical direction as compared with the first embodiment. Therefore, the head 32 becomes inconspicuous when the clip 7 is attached to the door weather strip 4, and the appearance quality can be improved.

  7 and 8 show a third embodiment of the present invention, in which only the locking projection 41 and the through hole 42 are changed based on the first embodiment. Therefore, below, only a different part from 1st Embodiment is demonstrated, and the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to each part which is common in FIG.

  In the third embodiment, the back surface of the clip 7 is formed flat by providing the neck 43 of the locking projection 41 directly on the lower edge 9C of the base 9. On the other hand, the through hole 42 is a vertical hole formed in the bead lower side portion 22 </ b> A itself without reaching the fin portion 6 or the belt-like portion 19. Further, the dimension in the width direction of the upper end of the head 44 is also set to be the same as that of the neck 43, and the engaging recess 24 in the first embodiment is eliminated.

Therefore, according to the third embodiment, the same effect as that of the first embodiment can be obtained, and the bottom side of the bead can be obtained without extending the through hole 42 to the fin portion 6 or the belt-like portion 19. By forming the portion 22A itself, the mold structure of the molded portion 4B can be simplified, and the cost can be reduced. Further, by eliminating the engaging recess 24 of the first embodiment, the head 44 of the locking projection 11 can be more smoothly inserted into the through hole 42, and the clip 7 is assembled. It is possible to improve the performance.

  FIGS. 9 and 10 show a fourth embodiment of the present invention, in which the belt-like portion 19 is deleted from the first embodiment, and even with this configuration, the same functions and effects as those of the first embodiment are obtained. Played.

  Note that, as described above, the clip 7 falling off, which is a technical problem of the present invention, is highly likely to be induced by having the belt-shaped portion 19, but the door weather strip 4, which is the adherend of the clip 7, is used. As long as it has elasticity, there is a possibility that the clip 7 may drop off even if the belt-like portion 19 is not provided as in this embodiment, and the movement restriction of the clip 7 by the bead lower side portion 22A described above. Based on the above, the same effects as those of the first embodiment can be obtained.

  As described above, the present invention is not limited to the above-described embodiments, and can be freely modified without departing from the spirit of the present invention.

  In particular, in each of the embodiments described above, the present invention is applied to the door weather strip in the corner portion of the rear door as an example. However, the present invention is not limited to this and can be applied to the door weather strip in the corner portion of the front door.

  In each of the above embodiments, the bead lower side portion 22A is formed close to the entire lower edge portion of the base portion 9 as an example. However, the present invention is not limited to this, and the bead lower side portion 22A is not limited to the base portion 9. It is only necessary to be formed close to at least a part of the lower edge portion, that is, only in a range where the through hole 23 in the lower edge portion of the base portion 9 is formed.

1 ... Rear door (Automotive door)
4 ... Door weather strip 4B ... Molding part 5 ... Seal body (seal lip)
6 ... Fin part 7 ... Clip 8 ... Door panel 9 ... Base part 9A ... One side part (one side part)
DESCRIPTION OF SYMBOLS 10 ... Anchor part 11 ... Locking projection part 14 ... Clip insertion hole 15 ... Clip attachment hole 16 ... Neck part 17 ... Head part 18 ... Step part 19 ... Belt-like part 22 ... Overlay bead part 23 ... Through-hole 31 ... Engagement Stop projection 32 ... Head 41 ... Locking projection 42 ... Through hole 43 ... Neck 44 ... Head 45 ... Stepped portion

Claims (6)

A door weather strip to be mounted around the door of an automobile door, and a wide fin attached to the seal lip at the upper corner of the door is fixed to the door panel using a plate-like clip arranged on the fin. Door weather strip structure,
While forming a clip insertion hole penetrating in the plate thickness direction in the fin portion,
On the back surface of the base portion of the clip, an anchor portion that is fitted and held in the clip mounting hole on the door panel side after being inserted into the clip insertion hole is formed to protrude.
The fin portion is formed with an overlaid bead portion adjacent to at least a part of the lower edge portion of the base portion, and penetrates through the overlaid bead portion between the fin portion and the overlaid bead portion. Forming a hole,
In the base portion of the clip, at a position corresponding to the through hole, a locking projection portion is formed which is inserted through the through hole and locked to the overlaid bead portion. Door weather strip to do. A flat belt-like part independent of the seal lip is formed extending downward from the fin part,
2. The door weather strip according to claim 1, wherein the build-up bead portion is formed at a position corresponding to a starting end portion of the belt-like portion.   The base portion of the clip has a deformed rectangular shape, and one side portion of the base portion adjacent to the seal lip is sandwiched between the seal lip and the fin portion. The door weather strip according to 2.   A relief hole formed in the fin part overlapped with the build-up bead part is used as a through hole, and the locking projection part is offset to the anti-beading bead part side, and the build-up bead is formed on the locking projection part. The door weather strip according to claim 3, wherein a stepped portion is formed to be hooked on the portion.   5. The door weather strip according to claim 4, wherein the locking projection is formed of a neck portion that lies in the through hole and a head portion having a larger cross-sectional area than the neck portion. 3. The door weather strip according to claim 2 , wherein a bent portion of the seal lip including the fin portion and a start end portion of the belt-shaped portion of the weather strip are formed by molding. .

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