JP2011178220A - Door weather strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the generation of a difference in level at the top end of a cover by thickening and tapering the top end of the cover and thereby improve the appearance, in a door weather strip for a vehicle including a molding section having a cover extending from a base part mounted to a retainer fixed to a sash and covering the connection part between the sash and a door panel, and to solve a problem that the top end of the cover totters in mounting and is easily deformed by an external force after mounting because of the insufficient rigidity due to the tapering in the case where rain water blown in when opening/closing a door and falling along a sash is not allowed to stop at the top end of the cover but allowed to smoothly flow. <P>SOLUTION: The connection part 40 of the top end of the cover connected to the base part is thickened to form a rib 49 which extends upward along a side end surface of the base part for a certain length and has a thickness same as that of the base part. The upper part of the rib is pushed and fitted in a fitting recess of the retainer 33 together with the base part 42, thereby firmly supporting the whole rib. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an automobile door weather strip that is attached around a door of an automobile door and seals between the door and a door opening edge of a vehicle body when the door is closed.

  In an automobile door, a door panel and a sash are integrally connected by welding, a door glass and a door glass lifting mechanism are attached inside, and then a door weather strip is attached around the door panel and the sash.

  FIG. 1 shows a door weather strip 1 mounted around a door of a front door, and a molded part 1b, 1c, which connects an extruded general part 1a, and the general parts at a corner part and a belt line part. 1d.

  2 is a detailed view of the portion a of FIG. 1 disclosed in Patent Document 1, and FIG. 3 is also a detailed view of the back side of the portion a, and constitutes the vertical side portion of the rear side of the door weather strip 1. The mold forming part 1d for connecting the general parts 1a to each other in the belt line part is formed by projecting from the base part 2 and the base part 2 and connected to the hollow seal part 3 and the seal lip 4 of the general part 1a. It consists of a part 5 and a seal lip 6 and a cover 7 extending in a substantially L-shaped cross section from the side end of the base part 2 on the vehicle inner side. In FIG. 3, 8 is a core punching hole for taking out the core of the mold.

  The cover 7 covers a connecting portion in which the sash and the door panel are connected by welding, and is provided to prevent the connecting portion from being noticed for the sake of aesthetic appearance. The cover 7 extends from the base portion 2. And a second wall portion 7b extending from the first wall portion 7a so as to cover the swelled portion of the sash at a substantially right angle, and the first wall portion 7a at the upper end of the back surface of the second wall portion 7b. A parallel narrow gripping portion 7c is extended so that when the mold forming portion 1d is assembled to the sash, the first wall portion 7a and the gripping portion 7c sandwich and attach the swelled portion. ing.

  The second wall portion 7b is also integrally formed with a locking portion 9 in a substantially L shape (FIG. 3). The locking portion 9 includes an upper side portion 9a formed at a right angle from the second wall portion 7b and substantially parallel to the first wall portion 7a, and a hollow vertical shape formed at a right angle downward from the upper side portion 9a. The upper end of a door inner panel (not shown) is inserted into the gap 9c between the second wall portion 7b and the vertical side portion 9b when the mold forming portion 1d is assembled. ing. Reference numeral 11 shown in FIG. 3 denotes a clip for fixing the second wall portion 7b to the door inner panel.

  Similarly to the cover 7, a second cover 13 covering the connecting portion between the sash and the door panel is extended from the side end opposite to the side end where the cover 7 is extended to the base portion 2, and the clip 14. Is fastened to a sash (not shown).

JP 2008-213497 A

  According to the door weather strip shown in FIGS. 2 and 3, the covers 7 and 13 formed on the mold forming portion 1 d cover the connecting portion for connecting the sash and the door panel. The first wall portion 7a of the cover 7 to be gripped is thick with the gripping portion 7c as shown in the figure, so that it forms a step with the sash, so that the appearance is impaired and the door is opened. There is a risk that the rainwater blown in may pass through the sash and fall into the stepped part or enter the cover.

  The present invention is intended to solve the above-mentioned problem by making the wall portion and gripping portion constituting the cover taper toward the upper end. However, if the taper is tapered, the rigidity is insufficient. Sometimes, a new problem arises that the front end of the cover is brazed or that it is easily deformed by an external force even after attachment, and that a gap is easily formed between the cover and the sash.

  The present invention eliminates the above-mentioned problems caused by increasing the thickness of the cover toward the upper end in an automotive door weatherstrip having a molded part provided with a cover that covers the connecting portion between the sash and the door panel. For the purpose.

  In order to solve the above-mentioned problem, the invention according to claim 1 is composed of an extruded general portion and a molded portion that connects the general portions, and a base portion on which the molded portion is attached to a retainer, A hollow seal portion that protrudes from the base portion and elastically contacts the door opening edge of the vehicle body when the door is closed, and a cover that extends from the base portion and covers a connecting portion of the sash and the door panel, the cover having an upper end portion In the automotive door weatherstrip that is tapered toward the upper end, the cover is such that the connecting portion of the upper end portion with the base portion is thicker than the upper end portion of the cover.

The invention according to claim 2 is characterized in that, in the invention according to claim 1, at least the upper portion of the cover has a substantially U-shaped cross-section and is mounted on the swelled portion of the sash.
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the thick connecting portion is integrated with a side end surface of the base portion, and a rib having a predetermined length along the side end surface. Are formed continuously.

The invention according to claim 4 is characterized in that, in the invention according to claim 3, at least a part of the rib is pushed and fitted into a fitting recess formed in a retainer fixed to the sash,
The invention according to claim 5 is the invention according to claim 3 or 4, wherein the general part has a base part connected to the base part of the molded part, and the rib is formed from a side end surface of the base part of the general part. The base part of the mold forming part that protrudes and includes the rib is formed wider than the base part of the general part in a state in which the core hole for taking out the core of the mold is closed. .

  According to the first aspect of the invention, the cover that covers the connecting portion of the sash and the door panel is formed such that there is no step with the sash because the upper end portion is formed to be tapered toward the upper end. Even if it becomes inconspicuous, the appearance improves, and rainwater that has blown in may flow down the sash, the upper end of the cover smoothly flows down, stays at the upper end of the cover, and does not easily enter the cover. The upper end of the cover is thick at the connection with the base, and the upper end of the cover following the connection is firmly supported by the base at the base by the connection. The part is difficult to be braned, and it is difficult to move and deform even after installation, and a gap is not easily formed between it and the sash.

  According to the second aspect of the present invention, at least the upper part of the cover has a substantially U-shaped cross-section and is mounted so as to cover the swelled part of the sash, so that the attachment state to the sash is stabilized and the cover upper part is bent The door trim of the interior material is attached to the door inner panel, and the end of the door trim is connected to the cover. However, if the cover is not substantially U-shaped in cross section but L-shaped, the cover end and the door trim There is a gap between the end and the sash may become visible from the gap, causing a problem in appearance. However, in the part having a substantially U-shaped cross section, the sash is covered by the above part. It has the effect of not causing such a problem.

  According to the invention according to claim 3, the rib is continuously formed in the connecting portion with the base portion of the upper end portion of the cover, whereby the rigidity of the connecting portion is improved, and the effect by the connecting portion according to claim 1 is obtained. It can be further increased.

  According to the invention of claim 4, the rib is firmly supported by fitting at least a part of the rib into the fitting recess of the retainer, and the movement of the base of the upper end of the cover is restrained. The effect by the connection portion can be further enhanced.

  According to the invention according to claim 5, the rib is pushed into the fitting concave portion of the retainer together with the base portion, so that the connection portion of the upper end portion of the cover is supported more firmly. Further, by pressing the connecting portion against the sash, the entire upper end portion of the cover can be pressed against the sash, and a gap can be prevented from being formed between the sash.

The figure which shows the whole door weather strip. The enlarged view of the die forming part of the conventional example of the a part shown in FIG. The figure which shows the back surface side of FIG. The figure which shows the whole door weather strip concerning this invention. The enlarged view of the b section shown in FIG. The perspective view when the b section shown in FIG. 4 is assembled to the sash and the door panel. The figure which shows the state after attachment similarly. AA line sectional view of Drawing 7. The BB sectional view taken on the line. The CC sectional view taken on the line. The DD sectional view taken on the line. The figure which shows the state after attaching a door trim to a sash and a door panel. EE sectional view taken on the line of FIG. The FF sectional view taken on the line. The GG sectional view taken on the line. The perspective view of the shaping | molding part of another aspect. Sectional drawing in the HH line of FIG. 16 after attaching a weather strip to a sash, a door panel, and a door trim. Sectional drawing of the part (HH line) corresponding to FIG. 15 in the assembly state equivalent to FIG.

Hereinafter, a door weather strip according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 4 shows a door weather strip 21 mounted around the door of the front door. Like the weather strip 1 described above, the general part 22 and mold forming for connecting the general parts 22 to each other at the corner part and the belt line part are shown. It consists of parts 23, 24 and 25, and the whole is formed of synthetic rubber such as EPDM, thermoplastic elastomer or soft resin. The illustrated door weather strip 21 is formed endlessly and attached to the entire periphery of the door, but the weather strip of the general portion 22 attached to the lower side of the door panel can be omitted.

  FIG. 5 is an enlarged view of the portion b in the vertical side portion on the rear side of the door weather strip 21 shown in FIG. 4, and FIG. 6 shows the molded portion of the portion b of the weather strip 2 in the sash 27, the retainer 33 and the door panel 28. 7 is a perspective view when assembled to a connecting portion connected by welding or the like, FIG. 7 is a view showing a state in which the fin 51 and the second cover 47 are fixedly attached by clips 52 and 55 described later, and FIG. FIG. 7 shows the A-A line of FIG. 7, FIG. 9 shows the same BB line, FIG. 10 shows the same CC line, and FIG. 11 shows each enlarged cross section along the DD line. 12 shows a state in which a door trim 31 as an interior material is attached to a door inner panel 29 constituting the door panel 28. FIG. 13 is a cross-sectional view taken along the line EE of FIG. 12, and FIG. FIG. 15 shows a cross section of the same GG line. In the figure, the triangle mark indicates the molded part on the side painted black, and the extruded part on the side of the non-filled part.

  As shown in FIG. 8, the extruded general portion 22 of the door weather strip 21 has a base portion 34 fitted into a fitting recess of a retainer 33 fixed to the sash 27, and protrudes from the base portion 34. In the example shown in the drawing, the seal portion 35 is formed to protrude from the base portion 34 and elastically contacts the door opening edge of the vehicle body when the door is closed, and from the root of the hollow seal portion 36. The seal lip 37 is formed so as to project and elastically contact the extended portion 33a of the retainer 33. The hollow seal portion 36 is formed with a bridge 38 that divides the hollow seal portion 36 into two chambers.

  As shown in FIG. 9, the mold forming part 25 that connects the general part 22 in the belt line forms a core take-out hole 41 for taking out the core of the mold at the time of molding, and the base part 34 of the general part 22. Are connected to the base part 42 attached to the retainer 33 and the hollow seal part 36 and the seal lip 37 of the general part 22, respectively, and are the same as the hollow seal part 36 and the seal lip 37. The hollow seal portion 43 and the seal lip 44 having the above functions, and the cover 46 and the second cover 47 that cover the connecting portion of the sash 27 and the door panel 28 connected by welding.

  The cover 46 is integrally extended from the side end surface of the base portion 42 toward the vehicle inner side (the left side in FIGS. 5 to 7), and a first wall portion 46 a formed on the extension of the base portion 42, and the wall The second wall portion 46b that is bent substantially orthogonally to the portion 46a is formed in a substantially L shape, and although not essential, the cover upper portion 46d preferably has a second wall as shown in FIG. A gripping piece 46c that is bent substantially orthogonally from the wall 46b is integrally formed, whereby the cover upper part has a substantially U-shaped cross section as shown in FIG. 13 (in FIG. 13, the cross-section is substantially trapezoidal, In the present specification, the substantially U-shaped cross section includes those having a substantially trapezoidal cross section), and is mounted so as to cover the bulging portion 27a of the sash 27. Then, as shown in FIG. 11, it curves toward the sash 27 and tapers toward the upper end so that the upper end elastically contacts the sash 27 when assembled to the connecting portion of the sash 27 and the door inner panel 29. I have to.

  The connection portion 40 of the upper end portion of the cover with the base portion 42 side end surface is as thick as the base portion 42, and the thick connection portion 40 has a certain length upward along the side end surface of the base portion 42. The base portion 42 is continuously formed integrally with the base portion 42, and this portion is an extension of the base portion 42 from the side end surface of the base portion 34 of the general portion 22 and the base portion 42 of the subsequent mold forming portion 25. The long rib 49 protrudes to the base and forms a step with the end surface on the base side. As described above, the core punching hole 41 is formed in the base portion 42 of the mold forming portion 25, but the base portion 42 including the ribs 49 is the base of the general portion 22 even when the core punching hole 41 is closed. It is wider than the part 34.

  The long rib 49 extending from the upper end portion of the cover is a preferable mode, but it is not essential. The short rib 49 may be used, or only the connecting portion 40 of the upper end portion of the cover may be formed.

  When the sash 27 is welded to the door panel 28 for welding, the retainer 33 does not extend until reaching the upper end of the door inner panel so as not to interfere with the welding. That is, the fitting recess in which the base portion 42 is mounted is cut off near the upper end of the door inner panel. Therefore, the upper side of the rib 49 is mounted in the fitting recess of the retainer 33 together with the base 42, and the lower side of the rib 49 connected to the cover 46 is not mounted on the retainer 33 and is exposed. In the example shown in the drawing, the rib 49 is mounted on the fitting recess of the retainer 33 on the upper side and is not mounted on the retainer 33 on the lower side. It is also possible to fit the whole in the fitting recess of the retainer 33. In this case, the lower part of the retainer 33 or the fitting recess is cut off from the position where the upper end of the cover is located.

  The rib 49 on the upper side protrudes from the side end surface of the base part 42, and the base part 42 including the rib 49 is wider than the base part 34 of the general part 22 even when the core hole 41 is closed. As shown in FIG. 10, the ribs 49 are slightly crushed in the fitting recesses of the retainer 33 and are firmly fitted, so that the entire ribs, Firmly supports the connecting portion 40 at the upper end of the cover connected to the rib 49, and the entire upper end of the cover is pressed against the sash 27 by pressing the connecting portion 40 against the sash 27. It is possible to prevent a gap from being generated.

  The cover 46 is further formed with a thin fin 51 extending from the second wall portion 46 b on the lower side and formed in a step with the second wall portion 46 b on the extension. It has come to be fixed to.

  The middle part in the vertical direction of the cover 46 remains substantially L-shaped as shown in FIG. 14, and the first wall part 46a and the second wall part 46b are thick except for the upper part. Of the first wall portion 46a and the second wall portion 46b, at least one of the wall portions is formed thin, and is reinforced with ribs formed sideways on the back surface, for example. Thereby, the material required for forming the cover 46 can be reduced and the weight can be reduced.

  The second cover 47 protrudes from the base end to the vehicle outer side (right side in FIGS. 5 to 7) substantially orthogonally to the base 42, and is shifted upward in the left-right direction opposite to the cover 46. Is formed. The above-described seal lip 44 is integrally formed on the upper and lower sides, and a cored bar 54 is embedded therein. Along the extended portion 33a of the retainer 33, the portion 33a is fastened with a clip 55 (see FIG. 7).

  As described above, the mold forming part 25 is fitted by pressing the base part 42 together with the upper part of the rib 49 into the fitting concave part of the retainer 33 and covering the bulging part 27a of the sash 27 with the cover 46. The fin 51 is fastened with the clip 55 in a state where the connecting portion of the door 27 and the door inner panel 29 is covered, and the second cover 47 is fitted with the extended portion 33 a of the retainer 33 and fastened with the clip 55. It is assembled by. After the assembly, the door trim 31 is attached to the door inner panel 29 (see FIG. 12). When the door trim 31 is attached, the grip piece 46c of the cover 46 is sandwiched between the bulging portion 27a of the sash 27 and the door trim 31 (FIG. 13), and the door trim 31 covers the fin 51 (FIG. 15). As described above, the door trim 31 that covers the fin contacts the gripping piece 46c, and the sash 27 and the door inner panel 29 are not noticeable from the gap between the door trim 31 and the gripping piece 46c. As shown in FIG. 14, the cover 46 has an intermediate step on the end surface of the second wall portion 46 b because the second wall portion 46 b is not thick and the second wall portion 46 b is thick. The sash 27 and the door inner panel 29 are not noticeable from the contact between the door trim 31 and the end surface of the second wall portion 46b.

  FIG. 16 shows a cover 61 which is another preferred embodiment of the cover 47 described above. The cover 61 has a grip piece on the upper end of the fin 51 formed on the extension of the second wall portion 46b. An inverted L-shaped connecting portion 62 reaching 46c is formed to extend. The connecting portion 62 includes a horizontal portion 62a connected to the gripping piece 46c and a vertical side portion 62b reaching the fin 51 from the horizontal portion 62a. When the door trim 31 is assembled, the vertical side portion 62b is connected to the door inner panel 29. And the door trim 31 (FIG. 17), and the horizontal portion 62a is pressed and held by the door trim 31 from above (FIG. 18). The external appearance after attaching to the door trim 31 and the sash 27 is the same as FIG.

  According to the cover 61 of the present embodiment, even if the gap between the bulging portion 27a of the sash 27 and the door trim 31 is expanded due to variations in the assembly of the door trim 31, the vertical side of the cover 61 Since the door trim end can press the vertical side portion 62b only by shifting the pressing position of the end of the door trim 31 that presses the portion 62b, the clamping piece 46c shown in FIG. 13 firmly covers the bulging portion 27a of the sash 27, There is no problem of falling off between the bulging portion 27a and the door trim 31. Even if the cover 61 protrudes from the door trim 31 and has a level difference, the connection portion 62 blocks the door trim 31 so that the sash 27 and the door inner panel 29 are visible. There is no problem.

  The connecting portion 62 of the present embodiment is preferably used in combination with the connecting portion 40 and further the rib 49, but the connecting portion 62 can be used alone without being used in combination with the connecting portion 40 and the rib 49.

Although the above-described embodiment shows an example in which the present invention is applied to a door weather strip of a front door, it can be similarly applied to a door weather strip of a rear door. In other words, the rear door weatherstrip is composed of a general part on the front side and a molded part that connects the general part on the belt line, and a sash and a door panel are connected to the molded part by welding. A cover is provided to cover the connecting portion to be formed, but the cover can be formed in the same manner as in the above-described embodiment, thereby producing the same effect.

21 ··· Door weather strip 22 · · Extruded general parts 23, 24 and 25 · · Molded part 27 · · Sash 28 · · Door panel 29 · · Door inner panel 31 · · Door trim 33 · · Retainers 34 and 42 .. Base portion 35 .. Seal portions 36 and 43... Hollow seal portions 37 and 44... Seal lip 38.. Bridge 40.. Connection portion 41. 2 cover 49 .. rib 51 .. fins 52 and 55 .. clip 54 .. cored bar 62.

Claims (5)

  The general portion 22 is formed by extrusion, and a mold forming portion 25 for connecting the general portions to each other. The mold forming portion 25 is formed so as to protrude from the base portion 42 and a base portion 42 to be mounted on the retainer 33. A hollow seal portion 43 that elastically contacts the door opening edge of the vehicle body when closed, and a cover 46 that extends from the base portion 42 and covers the connecting portion of the sash 27 and the door panel 28, the cover 46 is formed at the upper end. In the automotive door weatherstrip 21 that is tapered toward the upper end, the cover 46 is characterized in that the connecting portion 40 of the upper end 46a to the base 42 is thicker than the cover upper end 46a. And door weather strip.   The door weather strip according to claim 1, wherein at least an upper portion of the cover (46) is mounted so as to cover the bulging portion (27a) of the sash (27).   The thick connection portion 40 is integrally formed with a side end surface of the base portion 42, and a rib 49 having a predetermined length is continuously formed along the side end surface. Or the door weather strip of 2.   The door weather strip according to claim 3, wherein at least a part of the rib 49 is fitted into a fitting recess formed in a retainer 33 fixed to the sash 27.   The general portion 22 has a base portion 34 connected to the base portion 42 of the mold forming portion 25, and the rib 49 protrudes from a side end surface of the base portion 42 of the mold forming portion 25, and includes a mold including the rib 49. The base part 42 of the molding part 25 is formed wider than the base part 34 of the general part 22 with the core hole 41 for taking out the core of the mold closed. 4. The door weather strip according to 4.