JP2015189455A - automotive door weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure that can prevent the detachment of an outsert clip accompanied to a type forming part in a state of a door weather strip single body.SOLUTION: A clip body part 10 of an outsert clip 9 is closely overlapped and disposed to a flat mounting base part 8 being a portion of a type forming part 7. A locking shaft is formed to project out of the back side of the clip body part 10. In the mounting base part 8, upper and lower pocket parts 11a, 11b and a presser claw part 12 are formed, respectively. The clip body part 10 overlapped with the mounting base part 8 is configured such that corners 10c, 10d arranged on both sides of one long side part are inserted into the pocket parts 11a, 11b, and an intermediate part between the corners 10c, 10d is inserted, positioned and fixed in the lower side of the presser claw part 12.

Description

  The present invention relates to an improvement of a door weather strip that is mounted around a door of an automobile, and in particular, a tongue-shaped attachment base portion attached as a part of a mold forming portion is fixed to a door panel using a relatively large clip. The present invention relates to an automotive door weather strip.

  As a structure of this type of automobile door weather strip, for example, the structure described in Patent Document 1 has been proposed.

  In the structure described in Patent Document 1, when the molded part located between the roof part and the center pillar of the door weather strip is assembled to the door panel using an outsert clip, an insertion hole is formed in the molded part. In addition to forming a bag-like insertion groove whose lower end opens at the vehicle outer portion above the insertion hole, the outsert clip projects a clip portion sideways on the substantially plate-shaped main body portion, and the main body portion A claw portion is formed on the upper end of the lip plate, and the clip portion is fixed to the door panel while being inserted through the insertion hole, and the claw portion is inserted into a bag-like insertion groove.

Japanese Patent No. 3890565

  However, in the structure described in Patent Document 1, if the lip thickness of the portion corresponding to the roof portion of the door weather strip is thin, there is a possibility that the bag-like insertion groove cannot be formed. Even if the insertion groove can be formed, when the claw portion of the outsert clip is inserted into the insertion groove, the lip is deformed, and the expected sealing performance is achieved by the fluctuation of the bending characteristic of the lip. There is a risk of adverse effects.

  Further, when the thickness of the lip and the depth of the insertion groove are limited, the holding force of the claw portion inserted into the insertion groove is insufficient, for example, the distribution of the door weather strip alone with the outsert clip temporarily fixed or When assembling the door weather strip in the transport process or vehicle assembly process, the outsert clip may fall off the door weather strip due to vibration or external force, and there is still room for improvement.

  The present invention has been made paying attention to such problems of the prior art, and in particular, the outsert clip attached to the door weather strip alone without adversely affecting the expected sealing performance. The present invention provides an automobile door weather strip that is considered so that it can be prevented from falling off.

  The present invention provides a tongue-shaped attachment base portion that forms a part of a mold forming portion of a door weather strip mounted around a door of an automobile, and a locking shaft portion on the back surface of a plate-shaped clip main body portion. A door panel is formed by superposing and arranging the protruding main body of the outsert clip so as to be seated, and inserting and locking the locking shaft portion into the mounting holes formed in the mounting base portion and the door panel, respectively. This is a structure of an automobile door weather strip in which a mounting base portion is sandwiched and fixed between a clip body portion and a clip body portion. In addition, the clip body portion of the outsert clip is non-circular, and the corner portion of the clip body portion is inserted into the mounting base portion at a position where it overlaps with the seating area of the clip body portion to be housed and fixed. The pocket portion is formed in a bag shape, and the first through hole is formed in the seating region of the clip body portion in the mounting base portion and at a position overlapping with the pocket portion. To do.

  In this case, since the pocket portion is molded by a mold having a split mold structure as a part of the mold forming portion, the first through hole avoids an undercut relationship when the mold forming portion is removed. Play an important role in the above.

  In addition, as described in claim 8, the pocket portion has a function of holding the outsert clip temporarily supported by the mounting base portion so as not to drop off in a state of the door weather strip alone. ing.

  Further, as described in claim 2, for example, the clip body portion of the outsert clip is substantially rectangular, and the pocket portion accommodates and fixes corners on both sides of the long side of the clip body portion. And

  As described above, if the first through hole has a function of avoiding an undercut relationship at the time of demolding of the molded part, the first through hole as described in claim 3. It is desirable that the hole has substantially the same shape or similar shape as the pocket portion.

  Further, in combination with the pocket portion, as described in claim 4, at a position overlapping the seating region of the clip body portion of the mounting base portion, other than the corner portion of the peripheral portion of the clip body portion. A pressing claw portion that engages with the portion and presses the clip main body portion can be formed.

  In this case, since it is necessary to avoid the undercut relationship in the same manner as described above, it is a seating region of the clip main body portion of the mounting base portion and overlaps with the pressing claw portion. It is desirable that a second through hole is formed at the position. At the same time, as described in claim 6, it is desirable that the second through hole has substantially the same shape or a similar shape as the pressing claw portion.

  Here, in order to prevent the posture change and dropout of the outsert clip more reliably, on the premise of the one described in claim 2 or 3, the clip main body portion as described in claim 7 is used. It is desirable that a protrusion that engages with the first through hole is formed on the back surface in substantially the same shape as the first through hole.

  Therefore, in the invention according to claim 1, at least when the outsert clip is attached to the mounting base part, which is a part of the mold forming part, with a so-called temporary fastening state in the state of the door weather strip alone, In addition to the clip's locking shaft being inserted and locked into the mounting hole in the mounting base, the corner of the clip body of the outsert clip is inserted into the bag-shaped pocket to be stored and fixed Therefore, the outsert clip is extremely difficult to drop off from the mold part.

  According to the present invention, the pocket portion is formed in the mounting base portion which is a part of the mold forming portion, and the corner portion of the clip main body portion is inserted into the pocket portion to be accommodated and fixed. Alternatively, it is possible to ensure the inseparability of the outsert clip without adversely affecting the original function of the door weather strip. Therefore, even if the door weather strip alone with the outsert clip temporarily fixed is subjected to vibration or external force, the outsert clip can be prevented from falling off.

The schematic explanatory drawing which looked at the front door of the car from the room side. It is a figure which shows 1st Embodiment of the door weather strip which concerns on this invention, and is expansion explanatory drawing around the mold formation part in the Q section of FIG. Sectional drawing along the G1-G1 line | wire of FIG. Sectional drawing along the G2-G2 line | wire of FIG. Cross-sectional explanatory drawing along the S1-S1 line | wire of FIG. Cross-sectional explanatory drawing along the S2-S2 line of FIG. FIG. 7 is a perspective view of the outsert clip alone shown in FIGS. Explanatory drawing which shows the shaping | molding part of a state which does not mount | wear with an outsert clip in the state which cut off the pocket part and holding nail | claw part of FIG. Explanatory drawing which looked at the shaping | molding part of FIG. 8 from the back side. It is a figure which shows the metal mold | die for shape | molding the shaping | molding part of FIG. 8, and is sectional explanatory drawing along the S3-S3 line | wire of FIG. It is a figure which shows 2nd Embodiment of the door weather strip which concerns on this invention, and is an expanded explanatory view of a site | part equivalent to FIG. Cross-sectional explanatory drawing along the S4-S4 line | wire of FIG. FIG. 13 is a perspective view of the outsert clip alone shown in FIGS.

  1 to 10 show a more specific first embodiment for carrying out an automobile door weatherstrip according to the present invention. FIG. 1 shows a front door (hereinafter simply referred to as a door) of an automobile as viewed from the indoor side. FIG. 2 shows an enlarged view of the Q portion of FIG. 3 is a cross-sectional view taken along line G1-G1 in FIG. 2, and FIG. 4 is a cross-sectional view taken along line G2-G2 in FIG.

  As shown in FIG. 1, a door weather strip 3 in the form of a hollow rubber string is mounted in a closed loop around the indoor peripheral edge of the door 1 including the door sash 2, and the door weather strip 3 is closed when the door is closed as is well known. Elastically contacts the periphery of the door opening on the vehicle body side, thereby sealing the outside of the vehicle interior. Thereby, airtightness, watertightness, sound insulation, etc. are ensured.

  The door weather strip 3 has, for example, a cross-sectional shape as shown in FIG. 3 in a general portion (part along the vehicle body side roof portion) 3A corresponding to the upper side 2a of the door sash 2, but other general portions The section 3B has a cross-sectional shape as shown in FIG. 4, and the two general parts 3A and 3B having different cross-sectional shapes are the front mold forming part (not shown) and the mold of FIG. 2 corresponding to the Q part of FIG. They are connected to each other by the molding part 7. Both of the general portions 3A and 3B have a tongue-like sub seal lip 6 in addition to the base 4 and the hollow seal lip 5.

  2 shows an enlarged detail around the rear molding portion 7 in the Q portion of FIG. 1, FIG. 5 is an enlarged cross-sectional view taken along line S1-S1 of FIG. 2, and FIG. The expanded sectional view along line S2 is shown, respectively.

  As shown in FIGS. 5 and 6 in addition to FIGS. 1 and 2, the rear mold portion 7 has one general portion 3A and the other general portion 3B connected to the joint lines P1 and P2 as described above. Are formed in a substantially fin-like or substantially web-like shape at the corner equivalent portion formed by the upper side 2a of the door sash 2 and the vertical side 2b on the rear side. This molded part 7 is roughly composed of a corner hollow seal lip 5a for connecting the hollow seal lips 5 on the general parts 3A, 3B side shown in FIGS. 3 and 4 and a sub seal on the general parts 3A, 3B side. A corner sub-seal lip 6a for connecting the lips 6 to each other, and a flat mounting base portion in the form of a vertically long tongue sandwiched between the corner hollow seal lip 5a and the corner sub-seal lip 6a outside the curvature of the corner hollow seal lip 5a 8 and.

  As is clear from FIGS. 5 and 6, which are cross-sectional views, a resin-made outsert clip 9 is superposed on the mounting base portion 8 of the molded part 7, and the molded part is formed by the outsert clip 9. 7 is fixed to the door sash 2 that functions as a part of the door panel.

  As shown in FIG. 7, the outsert clip 9 is a relatively large plate-like clip main body portion that is substantially the same shape as the mounting base portion 8 on the mold forming portion 7 side, more specifically, a deformed rectangular shape or a deformed rectangular shape. For example, a prismatic locking shaft portion 31 is integrally formed on the back surface of the vertically long clip body portion 10 having a shape. Then, as shown in FIG. 6, the door sash 2 and the clip are inserted and locked into the square hole-shaped mounting holes formed in the mounting base portion 8 and the door sash 2, respectively. The mounting base portion 8 is sandwiched between the body portion 10 and the mold forming portion 7 is positioned and fixed.

  As described above, FIG. 2 shows a state in which the outsert clip 9 is arranged in an overlapping manner with respect to the mounting base portion 8 of the mold forming portion 7, whereby the mounting base portion 8 which is a part of the mold forming portion 7. And the clip body 10 of the outsert clip 9 are superposed so as to be in close contact with each other. At the same time, as shown in FIG. 6, one long side 10a (see FIG. 7) side of the clip body 10 is inserted between the mounting base 8 and the corner sub seal lip 5a and sandwiched. Become. In addition, as is apparent from FIG. 2, the upper and lower corner portions 10 c located on both sides of the other long side portion 10 b (see FIG. 7) of the clip body portion 10 in the outsert clip 9. , 10d are covered with the pocket portions 11a, 11b, and similarly, the intermediate portion of the long side portion 10b is covered with the pressing claw portion 12.

  More specifically, as shown in FIGS. 5 and 6, of the mounting base portion 8 on the mold forming portion 7 side on which the clip main body portion 10 of the outsert clip 9 is seated, two positions above and below the clip main body portion 10. Triangular pocket portions 11a and 11b are integrally formed in the respective positions overlapping with the corner portions 10c and 10d so as to form bag-like spaces 22a and 22b between the mounting base portion 8 and each pocket. One side of the triangle of the portions 11a and 11b is an opening C1. Thereby, it inserts so that the corner | angular part 10c or 10d of the clip main-body part 10 may be inserted in the bag-like space 22a, 22b between the attachment base part 8 and each pocket part 11a, 11b from the opening part C1 side, respectively. Can be done.

  Further, the holding claw portion 12 positioned between the both pocket portions 11a and 11b has a substantially flat L-shaped cross section from the mounting base portion 8 so that a predetermined gap 23 is secured between the pressing base portion 12 and the mounting base portion 8. In parallel with the insertion of the two corners 10c, 10d of the clip body 10 into the pockets 11a, 11b, respectively, as described above. The intermediate portion of the other side portion 10b (see FIG. 7) having 10c and 10d on both sides can be inserted so as to be inserted below the pressing claw portion 12.

  Therefore, as shown in FIGS. 5 and 6 in addition to FIG. 2, when the door weather strip 3 is attached to the door 1, when attention is paid to the molded portion 7 that is a part of the door weather strip 3, the outsert clip 9 While the clip main body 10 is seated on the mounting base portion 8 of the mold forming portion 7, the locking shaft portion 31 (see FIG. 7) is fitted or locked in the mounting hole on the door sash 2 side. The molded part 7 is fixedly supported while being positioned on the door sash 2, but the outsert clip 9 is attached to the molded part 7 in advance in the state of the door weather strip 3 before being assembled to the door sash 2. I shall let you.

  Specifically, the attachment base portion 8 and the clip body are inserted while the locking shaft portion 31 of the outsert clip 9 is inserted into the attachment hole 13 (see FIG. 6) on the attachment base portion 8 side in the mold forming portion 7. The clip main body 10 is seated so as to overlap the mounting base portion 8 of the mold forming portion 7 so that the contours of both the portions 10 are matched. At that time, as shown in FIG. 6, one long side portion 10a (see FIG. 7) side of the clip main body portion 10 is inserted and sandwiched between the mounting base portion 8 and the corner sub seal lip 5a. .

  Then, using the flexibility of the mold forming part 7 including the mounting base part 8, the center part of the other long side part 10b (see FIG. 7) in the clip main body part 10 is pressed against the claw part 12. The corners 10c and 10d on the other long side portion 10b side are respectively inserted into the pocket portions 11a and 11b on the attachment base portion 8 side and inserted.

  By doing so, the outsert clip 9 is not only inserted and supported in the mounting hole 13 formed in the mounting base portion 8 of the mold forming portion 7 in the locking shaft portion 31, but also in close contact with the mounting base portion 8. As a result, the clip body portion 10 that is superposed is inserted into the pocket portions 11a and 11b and the holding claw portion 12, thereby restricting the position as a whole. Therefore, even if an external force such as a twisting force or vibration is applied to the molding part 7 in the state of the door weather strip 3 alone before being assembled to the door 1, the posture and orientation of the outsert clip 9 should not change. In this case, the outsert clip 9 does not fall off from the mold part 7.

  Thus, the outsert clip 9 is stably supported by the mold forming part 7 even when the weather strip 3 is alone, so that the mold forming part 7 is attached to the door sash 2 when the door weather strip 3 is assembled to the door 1. In order to fix it, the direction of the mold forming part 7 is matched with the direction of the door sash 2, and the outsert clip 9 attached to the mold forming part 7 side as shown in FIGS. The locking shaft portion 31 is inserted into the mounting hole on the door sash 2 side and pushed in from the clip main body portion 10 side. By doing so, as shown in FIGS. 5 and 6, the mounting base portion 8 is sandwiched between the door sash 2 and the clip main body portion 10, and the mold forming portion 7 is in a correct position with respect to the door sash 2. It will be assembled while being positioned.

  Here, as the name suggests, the mold forming portion 7 is formed by a mold having a split mold structure. Therefore, when the mold forming portion 7 is formed by the mold, it is attached to the mounting base portion 8. If the pocket portions 11a and 11b and the holding claw portion 12 are simultaneously molded, since they have a so-called bag structure, when opening the mold for product demolding after molding, the mold opening direction Occurrence of undercuts that are related to catching may be unavoidable.

  Therefore, in the present embodiment, in order to avoid this undercut, as shown in FIG. 2, the pocket portions 11 a and 11 b and the pocket portions 11 a and 11 b in the plate thickness direction of the mounting base portion 8 in the front view of the mold forming portion 7. Through holes 14a, 14b and 15 having substantially the same shape or similar shape to the presser claw portions 12 are formed at positions where they overlap with each other.

  More specifically, FIG. 8 shows the same molded part 7 as FIG. 2, but in FIG. 8, the outsert clip 9 is not attached and the pocket overlaps with the mounting base part 8 in the thickness direction. The state which cut | disconnected intentionally the part 11a, 11b and the press nail | claw part 12 is shown. Therefore, in FIG. 8, a through hole (first through hole) having a shape substantially similar to or similar to the shape of the pocket portions 11 a and 11 b is formed inside the stepped bead portion 16 that defines the outline of the mounting base portion 8. ) 14a and 14b, and a through hole (second through hole) 15 that is substantially the same shape as or similar to the shape of the presser claw portion 12 is formed together with the mounting hole 13 having a square hole shape. In FIG. 8, the through holes 14a, 14b and 15 and the mounting holes 13 are hatched for easy understanding.

  2 and 5 so as to overlap and cover the through holes 14a, 14b and 15 which are hatched in FIG. 6 pocket portions 11a and 11b and a pressing claw portion 12 are formed.

  Here, FIG. 9 shows a state when the mold forming portion 7 of FIG. 8 is viewed from the back side, and FIG. 10 is an example of a mold 17 for forming the mold forming portion 7 and FIG. A sectional view taken along line S3-S3 is shown.

  The mold 17 is composed of, for example, a plurality of mold elements 17a to 17c. As is apparent from the figure, when the mold forming portion 7 including the pocket portions 11a and 11b and the holding claw portion 12 in addition to the mounting base portion 8 shown in FIGS. At the same time, by forming the through holes 14a, 14b and 15, the mounting hole 13, the bag-like spaces 22a and 22b and the gap 23 in FIG. It is possible to avoid the occurrence of the undercut described in (1). Here, in FIG. 10, bag-like spaces 22a and 22b and gaps 23 are formed by the convex portions D1, D2 and D3 of the mold element 17a, respectively. Further, since the mold element 17a moves in the direction of the arrow in the figure after molding, there is no occurrence of undercut. As described above, in order to avoid undercutting, for example, it is not necessary to increase the number of molds (the number of mold elements 17a to 17c) of the mold 17 for the purpose of forming the mold forming part 7, so that the mold structure is complicated. Therefore, it is possible to contribute to the improvement of the demoldability without incurring the increase in the size.

  In other words, by simultaneously molding the through holes 14a, 14b and 15 that are to be superposed with the pocket portions 11a, 11b and the holding claw portion 12, the mold-molding portion 7 has good demoldability after molding. In addition, the through holes 14a, 14b and 15 are covered by the pocket portions 11a and 11b, the holding claw portion 12 and the clip body portion 10 of the outsert clip 9, which is problematic in appearance. It will never be.

  11 to 13 show a second embodiment of an automotive door weatherstrip according to the present invention. FIG. 11 is an enlarged view around the molding portion 7 as in FIG. 2, and FIG. The expanded sectional view along line S4 is shown, respectively. Further, FIG. 13 shows a perspective view of the outsert clip alone. In addition, in these FIGS. 11-13, the same code | symbol is attached | subjected to the part which is common in previous 1st Embodiment.

  The second embodiment shown in FIGS. 11 to 13 is different from the first embodiment in that the holding claw portion 12 and the through hole 15 overlapping therewith are not formed in FIGS. ing. At the same time, the shape of the outsert clip 19 shown in FIG. 13 superimposed on the mounting base portion 18 of the mold forming portion 7 is different from that of the first embodiment, and as shown in FIG. Triangular protrusions 21a and 21b are formed on the back surface at positions corresponding to the corners 10c and 10d on the long side 10b side, respectively.

  As shown in FIGS. 11 and 12, the protrusions 21 a and 21 b are formed by arranging the outsert clip 19 on the mounting base portion 18 of the mold forming portion 7, and corner portions on both sides of the long side portion 10 b in the clip main body portion 20. When 10c and 10d are inserted into the corresponding pocket portions 11a and 11b, they are formed to be engaged with the respective through holes 14a and 14b located on the lower side of the pocket portions 11a and 1b1.

  Therefore, in the second embodiment, although the holding claw portion 12 shown in FIGS. 2 and 5 and 6 is not provided, the corner portions 10c and 10d of the clip main body portion 20 correspond to the corresponding pocket portions 11a. , 11b, the protrusions 21a, 21b on the back surface of the clip main body 20 are engaged with the through holes 14a, 14b located below the pocket portions 11a, 11b, respectively. Therefore, the position of the outsert clip 19 is regulated by the engagement between the through holes 14a and 14b and the projections 21a and 21b. As a result, the outsert clip 19 is the same as in the first embodiment. A drop-off preventing effect is exhibited together with the posture change suppressing effect.

1 ... Front door 2 ... Door sash (door panel)
DESCRIPTION OF SYMBOLS 3 ... Door weather strip 7 ... Molding part 8 ... Mounting base part 9 ... Outsert clip 10 ... Clip main-body part 10a, 10b ... Long side part 10c, 10d ... Corner | angular part 11a, 11b ... Pocket part 12 ... Holding claw part 13 ... Mounting holes 14a, 14b ... Through holes (first through holes)
15 ... through hole (second through hole)
DESCRIPTION OF SYMBOLS 18 ... Mounting base part 19 ... Outsert clip 20 ... Clip main-body part 21a, 21b ... Projection part 31 ... Locking shaft part

Claims (8)

A locking shaft portion is provided on the back surface of the plate-shaped clip main body portion on the tongue-shaped mounting base portion that forms a part of the mold forming portion of the door weather strip mounted around the door of the automobile. Place the stack so that the clip body of the outsert clip becomes seated,
By inserting and locking the locking shaft portion into the mounting holes formed in the mounting base portion and the door panel respectively, the mounting base portion is sandwiched and fixed between the door panel and the clip body portion. In the structure of the door weather strip,
The clip body of the outsert clip is non-circular,
A pocket portion is formed in a bag shape in which the corner portion of the clip body portion is inserted and accommodated and fixed at a position overlapping with the seating region of the clip body portion in the mounting base portion,
A door weather strip for an automobile, wherein a first through hole is formed at a position overlapping with the pocket portion in the seating region of the clip main body portion of the mounting base portion.   The clip body portion of the outsert clip is substantially rectangular, and the pocket portion accommodates and fixes corners on both sides of the long side of the clip body portion. Car door weather strip.   The automobile door weather strip according to claim 2, wherein the first through hole has substantially the same shape or a similar shape to the pocket portion.   A pressing claw portion that engages with a portion other than the corner portion of the peripheral edge portion of the clip main body portion and holds the clip main body portion at a position overlapping with the seating area of the clip main body portion of the mounting base portion. The automotive door weatherstrip according to claim 2 or 3.   5. The automotive door weather strip according to claim 4, wherein a second through hole is formed in a position where the clip main body portion is seated in the mounting base portion and overlaps with the pressing claw portion. .   6. The automobile door weather strip according to claim 5, wherein the second through hole has substantially the same shape or a similar shape to the pressing claw portion.   4. The automobile according to claim 2, wherein a projecting portion that is substantially the same shape as the first through hole and engages with the first through hole is formed on the back surface of the clip main body portion. For door weather strip.   The pocket portion has a function of holding the outsert clip temporarily fixed to the mounting base portion so as not to fall off in a state of the door weather strip alone. The automobile door weather strip according to any one of the above.

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