JP5660828B2 - Weather strip mounting structure - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip mounting structure in an automobile, and more particularly to a weather strip mounting structure in which a through hole formed in a panel member to which the weather strip is fixed is covered with an extension formed in the weather strip. About.

  For example, in a door inner panel of an automobile, a work hole for assembling components represented by a door mirror is formed as a through hole, and an extension portion formed in a weather strip attached to an outer edge portion of an automobile door In some cases, the extending portion is fixed to the automobile door with a clip while covering the working hole. Such a weather strip is described in Patent Document 1, for example.

Japanese Patent No. 4402479

  However, if the extension portion is fixed to the automobile door by a clip, a clip for fixing the extension portion is required separately from the clip for fixing the attachment base portion of the weather strip to the door inner panel. Therefore, the increase in the number of parts is disadvantageous in terms of cost, and the work of assembling the weather strip becomes complicated, which is not preferable.

  The present invention has been made in view of the above problems, and provides a weather strip mounting structure that can easily and surely fix the extending portion to the panel member without using a clip. It is aimed.

The invention according to claim 1 is a weather having an extending portion that extends from an attachment base fixed to a panel member of an automobile with a clip and covers the through-hole formed in the panel member while overlapping with the panel member. It is premised on a strip mounting structure.

In addition, a projecting portion integrally projecting from the extending portion is inserted into the through hole, and the projecting portion has a hollow shape having an outer peripheral surface that matches the outer edge shape of the through hole. A cylindrical wall portion, and a retaining claw portion protruding from the outer peripheral surface of the cylindrical wall portion in a direction away from the mounting base portion, and the extending portion of the mounting base portion The clip and the claw portion are provided on a virtual plane that bisects the protruding portion in the longitudinal direction of the weather strip, and the clip is provided in a longitudinal region where is formed. A portion of the projecting portion excluding the claw portion is formed so as not to overlap the outer peripheral edge portion of the through hole in the overlapping direction of the extending portion and the panel member.

As the weather strip referred to herein, for example, a door weather strip that is mounted along the outer edge of the door inner panel as the panel member and seals the outside of the vehicle interior as in the invention described in claim 6 is mainly assumed. In this case, in the mold forming part for connecting the terminals of the pair of general parts in the door weather strip, the extension part and the protruding part may be formed integrally with the mounting base part.

  Therefore, in at least the invention described in claim 1, since only the claw portion overlaps the panel member in the overlapping direction of the extension portion and the panel member, It is possible to easily perform the operation of inserting the protruding portion into the through hole.

Then, when the protruding portion is inserted into the through hole, the extension portion is positioned with respect to the panel member by the engagement between the outer peripheral surface of the cylindrical wall portion and the outer peripheral edge portion of the through hole. While the outer edge of the extension part is prevented from rolling up, the protrusion part is prevented from coming off by the engagement between the claw part and the outer peripheral edge part of the through hole. In particular, the portion of the outer edge of the extending portion that is spaced from the mounting base is likely to swell compared to other portions, but by projecting the claw portion in a direction away from the mounting base, It is possible to effectively prevent the portion from rolling up. In other words, the extension portion is securely fixed to the panel member by the protruding portion formed integrally with the extension portion, so that the extension portion is attached to the clip for fixing the panel member to the panel member. A fixing member as typified becomes unnecessary.
Moreover, since the said clip is provided in the area | region of the longitudinal direction in which the said extension part was formed among the said attachment base parts, the said extension part can be fixed more reliably with respect to the said panel member. Further, since the clip and the claw portion are provided on a virtual plane that bisects the protrusion in the longitudinal direction of the weather strip, the clip holding force against the mounting base prevents the protrusion from coming off. Will also contribute.

Further, when the projecting portion is molded as in the invention described in claim 6, since the claw portion is formed only in a direction away from the mounting base portion, the mold forming portion is molded. Therefore, there is also an advantage that the complexity of the mold structure can be suppressed.

Furthermore, on the premise of the invention described in claim 1, in order to achieve both ease of insertion of the protruding portion with respect to the through hole and difficulty in removal, the cylindrical shape as in the invention of claim 2 , for example. The amount of insertion into the through-hole in the portion of the wall that intersects the virtual plane on the claw side is the amount of insertion into the through-hole in the portion on both sides in the direction perpendicular to the virtual plane of the cylindrical wall. It is preferable to set it smaller than the amount.

That is, in the invention according to claim 2, the portion of the cylindrical wall portion where the claw portion is formed in the circumferential direction is reliably locked to the panel member by the claw portion. In that portion, the amount of insertion into the through hole is set to be relatively small, while in the portion of the cylindrical wall portion that does not have the claw portion in the circumferential direction, the amount of insertion into the through hole is set to be relatively large.

In this case, specifically, as in the invention described in claim 3, the portion on the claw portion side of the tip surface of the cylindrical wall portion is formed as an inclined surface that is inclined downward toward the claw portion side. It is good to form.

On the other hand, in order to improve the ease of insertion of the protruding portion with respect to the through hole and the difficulty of disconnection on the premise of the invention according to claims 1 to 3 , for example, as in the invention according to claim 4 , the above It is preferable to impart appropriate rigidity to the cylindrical wall portion by forming reinforcing ribs on the inner peripheral side of the cylindrical wall portion.

On the other hand, as in the invention described in claim 5 based on the invention described in claims 1 to 4, the extension portion is formed in a substantially triangular shape that gradually becomes narrower as the distance from the attachment base portion increases. If the projecting portion protrudes substantially at the center of the extending portion, the outer edge of the extending portion and the projecting portion are relatively close to each other, and the outer edge of the extending portion is bent. It becomes possible to prevent the rise more reliably.

  According to the first aspect of the present invention, the extending portion can be easily and reliably fixed to the panel member without using a clip, and the number of parts is reduced, which is advantageous in terms of cost. Assembling workability of the glass run can be dramatically improved.

In addition, there is an advantage that the extension portion can be more reliably fixed to the panel member with the pressing and holding force of the clip against the attachment base portion.

According to invention of Claim 2, 3, By changing the insertion amount with respect to the said through-hole by the part in which the said nail | claw part was formed in the circumferential direction among the said cylindrical wall parts, and the part which is not so, the said The ease of insertion of the protruding portion with respect to the through hole and the difficulty of removal can be highly compatible.

According to the fourth aspect of the present invention, it is possible to further improve the ease of insertion and the difficulty of removal of the protruding portion with respect to the through hole by imparting appropriate rigidity to the cylindrical wall portion. .

According to the fifth aspect of the present invention, the outer edge of the extending portion is relatively close to the protruding portion, so that the outer edge of the extending portion can be more reliably prevented from rolling up. Become.

According to invention of Claim 6, complication of the metal mold | die structure for shape | molding the said shaping | molding part is suppressed, and the rise in cost can be suppressed.

The perspective view which shows the door for motor vehicles to which the attachment structure of the weather strip which concerns on this invention is applied. The perspective view which shows the 1st type | mold shaping | molding part of the door weather strip shown in FIG. The perspective view which looked at the 1st mold formation part of the door weather strip shown in FIG. 1 from the angle different from FIG. It is sectional drawing along the AA line of the 1st mold shaping part shown in FIG. 2, Comprising: The figure which shows the state which mounted | wore with the 1st mold shaping part. It is sectional drawing along the BB line of the 1st mold forming part shown in FIG. 2, Comprising: The figure which shows the state which mounted | wore the door with the 1st mold forming part. The figure which shows the metal mold | die for shape | molding the 1st type | mold shaping | molding part shown in FIG.

  FIGS. 1 to 5 are views showing a preferred embodiment of the present invention. FIG. 1 shows a front door (hereinafter simply referred to as a door) of an automobile to which a weather strip mounting structure according to the present invention is applied. FIG. 2 is a perspective view of the door weather strip shown in FIG. 1 as a single unit, and FIG. 3 is a perspective view of the first mold part shown in FIG. FIG. 3 is a perspective view seen from a different angle. 4 is a cross-sectional view taken along line AA of the first mold forming portion shown in FIG. 2, and FIG. 5 is a cross-sectional view taken along line BB of the first mold forming portion shown in FIG. 4 and 5 show a state where the first mold part is mounted on the door.

  As is well known, the door 1 shown in FIG. 1 is formed by hemming a door inner panel 3 (see FIG. 4), which is a panel member, and a door outer panel (not shown), and a door body 2 for accommodating a window regulator (not shown). The door body 2 includes a door sash 4 that is substantially arched in side view and extends from the upper edge of the door body 2. A closed loop door weather strip 5 is attached to the outer edge of the door 1 on the vehicle interior side, and the door weather strip 5 is attached to the door opening peripheral edge 11 (see FIG. 4) on the vehicle body side when the door 1 is closed. The vehicle interior and exterior are sealed by the elastic contact. Although not shown, a portion of the door weather strip 5 along the door sash 4 is fitted and held by a retainer (not shown) formed on the door sash 4, while the door weather strip 5 A portion along the outer edge of the door body 2 is pressed and held on the door inner panel 3 by a plurality of clips provided in the longitudinal direction of the door weather strip 5.

  The door weather strip 5 is extruded as one having a uniform cross-sectional shape, and a first general portion 5a (a portion along the vehicle body side roof portion) mounted along the upper side portion of the door sash 4, and the first general portion 5a. The second general portion 5b is extruded with a cross-sectional shape different from that of the door sash 4, and is mounted along the rear vertical side portion of the door sash 4 and the outer edge portion of the door body 2, and the front ends of the two general portions 5a and 5b. And a second mold forming part 5d for connecting the rear ends of the two general parts 5a and 5b. The two general portions 5a and 5b and the two mold forming portions 5c and 5d are formed of a rubber material such as EPDM or a resin material such as TPO having the same flexibility.

  As shown in FIGS. 2 and 3, the first mold forming portion 5c has an upper end formed in the same cross-sectional shape as the first general portion 5a, and a lower end similar to the second general portion 5b. It is formed with a cross-sectional shape, and the cross-sectional shape gradually changes in the longitudinal direction so as to smoothly connect the first and second general portions 5a, 5b.

  Specifically, like the first and second general parts 5a and 5b, the first mold forming part 5c protrudes from the mounting base 6 fixed to the door inner panel 3 and the mounting base 6 to When closed, the main seal lip 7 that elastically contacts the door opening peripheral edge 11 (see FIG. 4) on the vehicle body side, protrudes from the mounting base 6 in a direction different from the main seal lip 7, and elastically contacts the door inner panel 3. And a pair of seal beads 9a and 9b projecting from both end edges in the width direction of the seating surface 6a to be seated on the door inner panel 3 of the mounting base 6. doing. 2 is formed only in the upper half of the first mold part 5c, and elastically contacts the door opening peripheral edge 11 (see FIG. 4) on the vehicle body side when the door 1 is closed. The reference numeral 6c shown in FIG. 2 is a core punching hole for extracting a core 25, which will be described later, after the first mold forming portion 5c is formed.

  On the other hand, as shown in FIG. 1, a front wall of the door inner panel 3 is formed with a predetermined width dimension in the vehicle width direction and extends in the vertical direction. A front side wall portion 3b extending toward the front side of the vehicle while being bent at a substantially right angle from the outer edge in the vehicle width direction is formed, and a door mirror (not shown) is provided on the outer surface of the door 1 on the front side wall portion 3b. A work hole 15 for attachment is formed as a through hole.

  As shown in FIG. 4, the mounting base 6 of the first mold forming part 5c is seated on the stepped wall part 3a and pressed and held by the clip C, while the mounting base 6 of the first mold forming part 5c is held. The tongue-shaped extending portion 12 extending from the vehicle front side toward the vehicle front side is superposed on the outer surface (the vehicle interior side surface) of the front side wall portion 3b so as to cover the work hole 15, and the extension A protruding portion 13 protruding from the protruding portion 12 is inserted into the work hole 15. In addition, in the intermediate part of the longitudinal direction shown in FIG. 4 among the 1st type | mold shaping | molding parts 5c, the attachment base 6 is shape | molded by substantially plate shape.

  As shown in FIG. 2 in addition to FIG. 4, the clip C includes a protruding region 13 in the longitudinal direction L of the mounting base 6, more specifically in the longitudinal direction of the mounting base 6. The mounting base 6 is attached to the mounting hole 6b formed in the same position so as to penetrate therethrough, and the mounting base 6 is pressed against the stepped wall 3a. In other words, the clip C is located on a virtual plane that bisects the protrusion 13 in the longitudinal direction of the mounting base 6 (longitudinal direction of the door weather strip 5), that is, on the cross section shown in FIG. Thereby, the pressing holding force by the clip C contributes to preventing the protruding portion 13 from coming off as well as preventing the extended portion 12 from rolling up.

  As shown in FIG. 2 in addition to FIG. 4, the extending portion 12 is formed with a form in which the door-side seal portion 8 extends in the protruding direction, and extends from the mounting base 6 in one width direction (the front side of the vehicle body). A base end wall portion 12a extending toward the outer wall of the base end wall portion 12a. Wall portion 12b, and the extending portion 12 as a whole is formed in a plate shape having a substantially triangular shape in front view that gradually becomes narrower as the distance from the mounting base 6 increases.

  Also, as shown in FIG. 4, there is a gap between the corner portion 3c formed by the stepped wall portion 3a on the door inner panel 3 side and the front side wall portion 3b and the proximal end wall portion 12a of the extension portion 12. G is formed. In other words, the base end wall portion 12a of the extending portion 12 is not formed along the corner portion 3c, but the base end wall portion 12a is formed away from the corner portion 3c. Even if the shape and the position of the working hole 15 vary, the influence on the mounting state of the extending portion 12 is small. As shown in FIGS. 2 and 3, a tongue-like bottom lip 14 formed so as to connect the outer edge of the extending portion 12 and the seal bead 9 a protrudes from the upper end portion of the extending portion 12. The bottom lip 14 is in elastic contact with the corner 3c of the door inner panel 3 so that the upper end of the gap G is closed. Thereby, the inflow of rainwater or the like into the gap G is prevented.

  On the other hand, as shown in FIG. 2 in addition to FIG. 4, the protruding portion 13 has a cylindrical shape having an outer peripheral surface 16 a formed in a cylindrical shape having the same diameter as the working hole 15, that is, a shape matching the outer edge shape of the working hole 15. It is formed around a cylindrical wall portion 16 as a wall portion. In addition, the cylindrical wall part 16 is formed ranging over the corner part 12c in order to reinforce the corner part 12c between the base end wall part 12a and the overlapping wall part 12b in the extension part 12.

  On the outer peripheral surface 16 a of the cylindrical wall portion 16, a claw portion 17 is provided so as to protrude toward the distal end side in the extending direction of the extending portion 12, that is, in the direction away from the attachment base portion 6. Similarly to the clip C, the claw portion 17 is located on a virtual plane that bisects the protruding portion 13 in the longitudinal direction of the mounting base 6 (longitudinal direction of the door weather strip 5), that is, on the cross section shown in FIG. Thus, only the claw portion 17 of the protruding portion 13 is engaged with the back surface of the door inner panel 3 to prevent the protruding portion 13 from coming off. That is, a portion of the protruding portion 13 excluding the claw portion 17 is formed so as not to overlap the outer peripheral edge portion of the work hole 15 in the overlapping direction of the extending portion 12 and the door inner panel 3.

  A plurality (six in the illustrated example) of reinforcing ribs 18 for imparting appropriate rigidity to the cylindrical wall portion 16 are formed on the inner peripheral surface of the cylindrical wall portion 16 at equal intervals in the circumferential direction. . Then, by forming one of these reinforcing ribs 18 at a circumferential position corresponding to the claw portion 17 on the inner peripheral surface of the cylindrical wall portion 16, the work hole 15 is bent by the deflection of the cylindrical wall portion 16. The engagement between the outer peripheral edge portion and the claw portion 17 is prevented from being disengaged.

  Further, as shown in FIG. 5 in addition to FIG. 4, the cylindrical wall portion 16 has a maximum height at the tip portion of the cylindrical wall portion 16 in the half portion on the mounting base 6 side, and the half portion thereof. It is formed in a cylindrical shape in which a part on the tip side is cut obliquely so as to gradually become lower from the claw part 17 side. That is, the half part by the side of the nail | claw part 17 among the front end surfaces of the cylindrical wall part 16 is formed as an inclined surface which becomes a downward slope toward the claw part 17 side. As a result, the insertion amount a1 of the cylindrical wall portion 16 with respect to the work hole 15 at the claw portion 17 side on the cross section shown in FIG. 4 is perpendicular to the cross section shown in FIG. Thus, the insertion amount a2 is smaller than the insertion amount a2 in the work holes 15 on both sides.

  According to the weather strip mounting structure configured as described above, the extension portion 12 is formed in a direction parallel to the front side wall portion 3b on the door inner panel 3 side by fitting the cylindrical wall portion 16 and the work hole 15. In addition to being positioned reliably, the outer edge 16a of the cylindrical wall 16 and the outer peripheral edge of the working hole 15 are in contact with each other, so that the outer edge of the extending portion 12 is prevented from rolling or floating. In particular, the portion on the distal end side of the extended portion 12 of the outer edge of the extended portion 12 is separated from the mounting base 6 that is relatively firmly fixed to the door inner panel 3. However, it is possible to surely prevent the curling up by providing the claw portion 17 at that portion.

  Further, the portion of the protruding portion 13 excluding the claw portion 17 is formed so as not to overlap the outer peripheral edge portion of the working hole 15 in the overlapping direction of the extending portion 12 and the door inner panel 3. Is formed in a hollow shape, the protrusion 13 can be easily inserted into the work hole 15.

  As a result, a clip for fixing the extending portion 12 to the door inner panel 3 becomes unnecessary, and the number of parts is reduced, which is advantageous in terms of cost. In addition, not only can the labor of attaching the clip to the extension 12 be saved, but also the projection 13 can be easily inserted into the work hole 15 as described above, so that the glass run assembly workability is improved. Can be dramatically improved.

  Furthermore, when assembling the first mold part 5c to the door inner panel 3, after fixing the mounting base 6 of the first mold part 5c to the stepped wall part 3a of the door inner panel 3 by the clip C, The protrusion 13 is inserted into the work hole 15 by rotating the extension 12 around the root of the extension 12 with respect to the mounting base 6. At this time, as is apparent from the movement trajectory P of the protruding portion 13 shown in FIG. 4, the portion of the cylindrical wall portion 16 that is separated from the mounting base portion 6 interferes with the outer peripheral edge portion of the working hole 15. Since the height in the protruding direction of the portion is set lower than the other portions of the cylindrical wall portion 16, the protruding portion 13 can be easily inserted into the work hole 15. In addition, since the part with the low protrusion direction height of the cylindrical wall part 16 will be latched by the outer peripheral edge part of the work hole 15 by the nail | claw part 17, the protrusion part 13 makes the work hole the starting point. There is no such thing as getting out of 15. Thereby, it is possible to achieve both the ease of insertion of the protrusion 13 and the difficulty of detachment.

  In addition, by forming the reinforcing rib 18, appropriate rigidity is imparted to the cylindrical wall portion 16, so that the ease of insertion of the protruding portion 13 and the difficulty of coming off can be further improved.

  Here, FIG. 6 shows an example of a mold structure that controls the molding of the first mold molding portion 5c in a cross section corresponding to FIG. FIG. 6 shows a state after the first mold forming portion 5c is formed and before the mold release.

  The mold 20 shown in FIG. 6 is used for releasing the upper mold 21, the lower mold 22 and the horizontal mold 23 as well as the core 25 formed integrally with the mold element piece 24 and the claw 17 serving as an undercut section. And a slide mold 26. And the nail | claw part 17 is escaped by retracting the slide mold | type 26 at the time of mold release after shape | molding the door weather strip 5 containing the 1st type | mold shaping | molding part 5c.

  On the other hand, if the claw portion 19 protruding from the cylindrical wall portion 16 toward the attachment base portion 6 is formed separately from the claw portion 17, the claw portion 19 is undercut with respect to the upper mold 21. Therefore, it is necessary to divide the upper mold 21 along the virtual line D shown in FIG. 6 to increase the number of mold elements.

  That is, according to the present embodiment, the structure of the mold 20 can be simplified as compared with the case where the claw portion 19 is formed.

3. Door inner panel (panel member)
DESCRIPTION OF SYMBOLS 5 ... Door weather strip 5a ... 1st general part 5b ... 2nd general part 5c ... 1st type molding part 6 ... Mounting base 15 ... Work hole (through-hole)
DESCRIPTION OF SYMBOLS 12 ... Extension part 13 ... Protrusion part 16 ... Cylindrical wall part (tubular wall part)
16a ... outer peripheral surface of cylindrical wall part 17 ... claw part 18 ... reinforcing rib C ... clip (fixing means)

Claims (6)

In a weather strip mounting structure having an extending portion that extends from a mounting base fixed to a panel member of an automobile with a clip, and overlaps the through hole formed in the panel member while overlapping with the panel member,
A hollow cylindrical wall having a projecting portion integrally projecting from the extending portion is inserted into the through hole, and the projecting portion has an outer peripheral surface having a shape matching the outer edge shape of the through hole. And a claw portion for retaining to protrude from the outer peripheral surface of the cylindrical wall portion in a direction away from the mounting base portion,
The clip is provided in the longitudinal region of the mounting base where the extension is formed, and
The clip and the claw portion are provided on a virtual plane that bisects the protruding portion in the longitudinal direction of the weather strip,
Furthermore, the part except the said nail | claw part of the said protrusion part is formed so that it may not overlap with the outer periphery part of the said through-hole in the superposition | polymerization direction of the said extension part and the said panel member. Weather strip mounting structure. The through hole in the portion on both sides in the direction perpendicular to the virtual plane of the cylindrical wall portion is inserted into the through hole in the portion of the cylindrical wall portion that intersects the virtual plane on the claw portion side. The weather strip mounting structure according to claim 1, wherein the weather strip mounting structure is set to be smaller than an insertion amount into the weather strip. The weather strip according to claim 2, wherein a portion on the claw portion side of the front end surface of the cylindrical wall portion is formed as an inclined surface that is inclined downward toward the claw portion side. Mounting structure. The weather strip mounting structure according to any one of claims 1 to 3 , wherein a reinforcing rib is formed on an inner peripheral side of the cylindrical wall portion. The extension portion is formed in a substantially triangular shape that gradually becomes narrower as the distance from the mounting base portion increases, and the protruding portion protrudes substantially at the center of the extension portion. Item 5. A weatherstrip mounting structure according to any one of Items 1 to 4 . The weather strip is a door weather strip that is mounted along the outer edge of the door inner panel as the panel member and seals the outside of the vehicle interior,
2. The mold forming part for connecting the terminals of a pair of general parts of the door weather strip, wherein the extension part and the protruding part are formed integrally with the mounting base part . The weatherstrip mounting structure according to any one of 5 above.

Images