JP5004014B2 - Vehicle door seal structure - Google Patents

Description

  The present invention relates to a seal structure for a vehicle door, and more specifically, a seal in the vicinity of a partition sash upper end joint portion of a vehicle door provided with a partition sash that defines an elevating glass portion and a fixed glass portion in a window opening. It is related to the structure.

  It is preferable that the window opening of the door disposed on the side of the vehicle is opened as wide as possible in order to ensure a sufficient field of view for the occupant. However, in a rear door or the like of a four-door vehicle, the lower portion on the rear side of the door is narrow so as to avoid the wheel house of the rear wheel, and a sufficient space for storing the lift glass cannot be secured. Accordingly, conventionally, a partition sash (center sash) is provided in the window opening of the rear door, and the elevating glass part and the fixed glass part are defined in the window opening, thereby enabling the elevating glass to be stored and the fixed glass (partition). A wide field of view is secured by a window, a so-called triangular window.

  In such a door structure, in the vicinity of the upper end joint portion of the partition sash, the elevating glass weatherstrip, the glass run, and the fixed glass weatherstrip (partition weatherstrip) are connected to each other so that the seal members are in close contact with each other. Sex is likely to be weaker than other parts. For example, in the case of a weather strip made of fixed glass, the seal lips on both the inner and outer sides are joined to the glass lip seal lip across the upper end joint part of the partition sash. The tension in the extending direction of the lip tip is insufficient, and the adhesion to the door panel surface tends to be weaker than other parts. For this reason, when a high water pressure is received during car washing, the tip of the seal lip floats to create a gap, which may cause water leakage. Conventionally, various measures have been taken to improve the sealing performance of this portion. For example, in Patent Document 1, an end cap is interposed at the upper end of a partition sash, and a sheet-like seal member (Epto seal) is attached around the end cap. However, the structure is complicated, and the number of parts and the number of steps are affixed. There was a problem of increasing.

Japanese Patent No. 3428383

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a partition sash upper end joint in which a window opening of a door disposed on a side surface of a vehicle is defined by a lift glass portion and a fixed glass portion. An object of the present invention is to provide a vehicular door seal structure that can reliably improve the water-tightness in the vicinity of a portion at low cost.

In order to solve the above-described problems of the prior art, the present invention provides:
A door panel disposed on a side portion of the vehicle, formed by joining a door outer panel and a door inner panel, and having a door sash portion integrally defining a window opening at an upper portion; and above the window opening A window upper reinforcement disposed between the door outer panel and the door inner panel, a partition sash that defines an elevating glass portion and a fixed glass portion in the window opening, and the elevating glass portion A glass run that is mounted along at least both the front and rear sides and the upper side and that slidably guides the elevating glass, and a weather strip that is mounted around the fixed glass portion, and the upper end of the partition sash is the bonded to the window upper reinforcement via the upper bracket which projects upwardly from the upper end, the U A zir strip is positioned between each side surface portion that is attached to the vehicle outer surface side of the door outer panel and the vehicle interior side of the door inner panel around the fixed glass portion, and the fixed glass is positioned between the side surface portions. possess a central portion having a groove for mounting is formed, of the respective side portions, the side surface portions of at least the vehicle outer side is, the corner portion adjacent the upper end joint portion of the partition sash, across the upper joint In the vehicle door seal structure having a tip portion joined to the upper end portion of the glass run ,
The window upper reinforcement has an extension part extending from the upper end joint part of the partition sash toward the fixed glass part, and the weather strip projects upward from the upper back surface of the central part to extend the extension. and have a inner sealing lip in contact with the parts, the front edge of the inner seal lip, the contact with the back of the upper bracket and the front end of the central portion adjacent the front end edge, said vehicle exterior surface An inner wall extends in the vicinity of the distal end portion on the side .

  Since the vehicle door seal structure according to the present invention is configured as described above, a reliable seal structure can be obtained by abutting the internal seal lip against the extension of the rigid window upper reinforcement. These seal members (extension part of internal seal lip and window upper reinforcement) are all integrated with existing parts, so there is no increase in assembly man-hours and number of parts. Improvement can be achieved. In addition, because the inner seal lip contacts the rigid window upper reinforcement extension, the weatherstrip mounting state is stabilized, and the side surface (outer seal lip) that is attached to the door outer panel is sealed. There is also an advantage to improve.

Further, the front edge of the inner seal lip, the since the contact with the back of the upper bracket, with watertight vicinity of the upper end joint portion of the partition sash is further improved, internal seal lip of the upper edge portion and the front edge portion The position is restricted from two directions, which is advantageous for improving the assembly accuracy.

Further, in the present invention, the window upper reinforcement is bent at an upright portion extending along the door outer panel and a lower edge of the upright portion and extended toward the door inner panel side. A flat portion, and a flange portion that is bent downward at a vehicle interior side edge portion of the flat portion and joined to the door inner panel, and the extension portion extends from the elevation portion and the flat portion. And an extended flange portion that extends downward from a vehicle cabin side edge portion of the extended plane portion and is joined to the door inner panel. However, in the aspect in contact with the extension flat part, the rigidity in the vicinity of the upper end joint part of the partition sash is further improved, and the inner seal lip is provided on the flat extension flat part with high rigidity. Contact force is increased by causing the abutment, which is advantageous in improving the sealing property.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIG. 1 shows a vehicle door according to an embodiment of the present invention, and shows a rear door 1 arranged on the side of a rear seat among doors arranged on a side surface of the vehicle. The rear door 1 is integrally provided with a frame-shaped door sash portion 2 that defines a window opening 20 at an upper portion thereof, and constitutes a so-called sash-integrated door. A partition sash 3 (center sash) is disposed near the rear of the window opening 20 so as to cross the window opening 20 up and down. A lift glass part (4) on the front side and a fixed glass part (5) on the vehicle rear side are defined.

  A glass run 41 that guides the elevating glass 4 so as to be slidable in the vertical direction and seals the elevating glass 4 when closed is mounted on both the front and rear side edges and the upper edge of the elevating glass part (4). On the other hand, in the substantially triangular fixed glass portion (5) surrounded by the rear portion of the door sash portion 2 and the partition sash 3, a fixed partition glass 5 is disposed, and a partition weather strip 51 is formed around the fixed partition glass 5. It is installed.

  2 and 3 are exploded perspective views of the rear door 1 as viewed from the indoor side. As shown in FIG. 2, the rear door 1 has a door outer panel 11 that forms a surface on the outdoor side and a door inner panel 12 that forms a surface on the indoor side at the periphery thereof, thereby joining the interior. It is formed in a so-called middle state in which a space is formed. Further, inside the panel where the door sash portion 2 is formed, a plurality of reinforcements that improve the rigidity around the window opening 20 and constitute part of the mounting portion of the glass run 41 and the partition weather strip 51. The material (reinforce) is joined as follows.

  That is, the window front reinforcement 13 extending vertically along the front frame portion of the door sash portion 2, the window upper reinforcement 14 extending along the upper frame portion, and vertically extending along the rear frame portion. The window rear reinforcement 15 and the outer reinforcement 16 extending along the lower edge (belt line portion) of the window opening 20 are joined to the inner surface of the door outer panel 11 in advance at each edge. .

  Of the above, after the door outer panel 11 and the door inner panel 12 are joined, the window front reinforcement 13, the window upper reinforcement 14, and the window rear reinforcement 15 are connected to the door inner panel 12 on the other edge side thereof. To be joined. The window front reinforcement 13 is integrally provided with a sash on the front side of the elevating glass 4.

  As shown in FIG. 3, the partition glass 5 is preliminarily mounted around the partition glass 5 on the door panel (11, 12) integrally joined with each reinforcing member as described above. Is inserted into the inside of the door sash portion 2, and the lower part of the partition sash 3 is then inserted into the door panel (11, 12) and fixed to the door inner panel 12, and then the partition sash 3 and the front sash (13 ) And the elevating glass 4 and the weather strip 41 are fitted.

  FIG. 4 shows the vicinity of the upper end joint portion of the partition sash 3 with the glass run 41, the partition weather strip 51, and the door outer panel 11 removed. The partition sash 3 is formed into a substantially uniform cross-section H shape by roll forming, and the fitting groove 34 of the glass run 41 and the fitting groove 35 of the partition weather strip 51 are formed facing backward in the vehicle front-rear direction. (See FIG. 5). An upper bracket 31 (sash upper bracket) projects from the upper end of the partition sash 3. The upper bracket 31 (L-shaped connecting metal fitting) is joined to the inner bottom surface of the fitting groove 35 at the lower portion, and a fastening member such as a screw 32 on the flat portion 14b of the window upper reinforcement 14 at the bent upper end portion. It is fixed with.

  As shown in FIG. 4 or FIG. 8, the window upper reinforcement 14 is folded to the vehicle interior side at the upright surface portion 14a extending along the door outer panel 11 of the rear door 1 and the lower edge of the upright surface portion 14a. A flat portion 14b that is bent and extends between the door outer panel 11 and the door inner panel 12, and a flange that is bent downward at the vehicle cabin side edge of the flat portion 14b and extends along the door inner panel 12 The portion 14c has a substantially uniform cross-sectional crank shape in the longitudinal direction, and is joined to the door outer panel 11 at the upper edge portion of the vertical surface portion 14a, and the door inner panel 12 at the lower edge portion of the flange portion 14c. To form a reinforcing structure having a closed cross section.

  Further, the flat surface portion 14b of the window upper reinforcement 14 forms an inner ceiling surface at a position slightly pulled upward from each edge of the door outer panel 11 and the door inner panel 12 in the elevating glass portion (4). The fitting groove of the glass run 41 is comprised with each said edge part. Although it has already been described that the joint portion of the partition sash 3 (upper bracket 31) is provided on the flat surface portion 14b of the window upper reinforcement 14, the window upper reinforcement 14 according to the present invention is provided with a vertical position for the reasons described later. One of the features is that the surface portion 14a and the plane portion 14b extend rearward beyond the joining position of the partition sash 3.

  In other words, the window upper reinforcement 14 includes an extended vertical surface portion 14d and an extended flat surface portion 14e that extend rearward beyond the joining position of the partition sash 3, and downward on the vehicle interior side edge of the extended flat surface portion 14e. A bent extended flange portion 14f is provided, joined to the door outer panel 11 at the upper edge portion of the extended elevation surface portion 14d, and joined to the door inner panel 12 at the lower edge portion of the extended flange portion 14c. Yes. In other words, a notch that avoids the upper end of the partition sash 3 is formed between the flange 14c and the extended flange 14f.

  As shown in FIGS. 6 and 7, the partition weather strip 51 includes a first portion 51 a fitted inside the door sash portion 2, a second portion 51 b fitted in the fitting groove 35 of the partition sash 3, and The third portion 51c attached to the belt line portion is composed of three portions having different cross-sectional shapes. The first portion 51a has a central portion 55 having a groove for mounting on the peripheral edge portion of the partition glass 5 in the intermediate portion in the width direction, and extends in parallel on both sides of the door outer panel 11 and the door inner panel 12. Side portions 53 and 54 (outer seal lip and inner seal lip) are provided on the edge.

  At the joint end portion of the partition weather strip 51 and the glass run 41 at the upper end portion of the partition sash 3, the side surface portions 53 and 54 are connected to the glass run 41 with respect to the central portion 55 continuous with the upper end portion of the second portion 51b. As shown in FIG. 7, it covers the upper end of the partition sash 3 and terminates at the edge of the ascending / descending glass part (4) side, as well as the edges along the inner surfaces of the side parts 53 and 54 Joining pieces 53 a and 54 a are further extended from the end portions to be joined to the back surfaces of the side surface portions 43 and 44 of the glass run 41.

  Further, the central portion 55 of the partition weather strip 51 is located on the vehicle outer surface side of each of the side surface portions 53 and 54 from a portion of the end portion continuous to the upper end portion of the second portion 51b and slightly closer to the outside of the vehicle compartment. An inner wall 56 extends in the vicinity of the side surface 53, and the inner wall 56 and the side surface 53 seal the edge of the door outer panel 11, which requires stricter water tightness, from both the inner and outer surfaces. Has been.

  By the way, a recess capable of accommodating the thickness of each joining piece 53a, 54a is formed on the back surface of each side surface portion 43, 44 of the glass run 41 to which each joining piece 53a, 54a is joined. The side portions 53 and 54 of the strip 51 and the side portions 43 and 44 of the glass run 41 are basically joined in a state where the total cross-sectional shape is maintained uniformly. , 54 are joined by butting, so that the tension in the extending direction of the side surfaces 53, 54 is insufficient, and the adhesion to the door panel surface is weaker than in other places. For this reason, as described above, when a high water pressure is applied at the time of car washing or the like, the side surface portion 53 on the outer surface side of the vehicle may float and water leakage may occur.

  Therefore, in the present invention, in order to improve the watertightness of the partition weather strip 51 with the door sash portion 2 at the upper end portion of the partition sash 3, the partition weather strip 51 protrudes upward on the upper and rear surfaces of the central portion 55. The inner seal lip 52 is integrally provided, and the partition weather strip 51 is attached to the door sash portion 2 so that the inner seal lip 52 abuts on the extended flat portion 14e of the window upper reinforcement 14 described above. 7, the front end edge 52 a of the internal seal lip 52 is in contact with the back surface of the upper bracket 31 of the partition sash 3.

  As a result, a second seal structure is formed by the extended flat surface portion 14e of the window upper reinforcement 14 and the internal seal lip 52 inside the seal structure by the side surface portion 53 on the vehicle outer surface side of the partition weather strip 51, and the partition sash 3 The sealing performance in the vicinity of the upper end joint portion of is improved. In particular, as described above, the extended flat surface portion 14e of the window upper reinforcement 14 is extended from the flat surface portion 14b of the window upper reinforcement 14, and the extended upright surface portion 14d and the extended flange portion 14f that are continuous up and down are respectively provided. By joining to the door outer panel 11 and the door inner panel 12, sufficient rigidity is ensured, and the sealing performance is also enhanced thereby.

  Further, the front end edge 52a of the inner seal lip 52 abuts against the back surface of the upper bracket 31, whereby the position of the inner seal lip 52 is regulated from the upper and front directions, and the assembly accuracy of the partition weather strip 51 is improved. be able to. In this way, the window upper reinforcement 14 is extended rearward to form an abutment surface (extension plane portion 14e), and the sealable range is increased, so there is no need to assemble another part such as an ept seal. The number of points and assembly man-hours can be reduced, which can contribute to the reduction of defective parts such as peeling.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various deformation | transformation and change are possible based on the technical idea of this invention.

It is the principal part side view seen from the vehicle compartment outer side which shows the door for vehicles to which the sealing structure concerning this invention is applied. It is the perspective view seen from the vehicle interior side which shows the decomposition | disassembly state of the vehicle door to which the seal structure concerning this invention is applied. It is the perspective view seen from the vehicle interior side which shows the decomposition | disassembly state of the vehicle door to which the seal structure concerning this invention is applied. It is the principal part perspective view seen from the vehicle compartment outer side which shows the state which removed the door outer panel of the vehicle door to which the seal structure concerning this invention is applied. It is a principal part top view which shows joining of a glass run and a partition weather strip. It is a principal part perspective view which shows the junction part with the glass run of a partition weather strip. It is the principal part side view which looked at the upper end junction part vicinity of the partition sash from the vehicle compartment outer side in the state which removed the door outer panel and the glass run. It is AA sectional drawing of FIG.

Explanation of symbols

1 Rear door 2 Door sash 3 Partition sash 4 Elevating glass 5 Partition window (fixed glass)
DESCRIPTION OF SYMBOLS 11 Door outer panel 12 Door inner panel 14 Window upper reinforcement 14d Extension elevation surface part 14e Extension plane part 14f Extension flange part 20 Window opening 31 Upper bracket 32 Screw 34, 35 Fit groove 41 Glass run 51 Partition weather strip 52 Internal seal lip 53, 54 Side (outer seal lip, inner seal lip)
55 Central

Claims (2)

A door panel disposed on the side of the vehicle, formed by joining a door outer panel and a door inner panel, and a door sash portion defining an opening for a window at an upper portion;
A window upper reinforcement disposed between the door outer panel and the door inner panel above the window opening;
A partition sash that defines an elevating glass portion and a fixed glass portion in the window opening;
A glass run that is mounted along at least the front and rear sides and the upper side of the elevating glass part and slidably guides the elevating glass;
A weather strip mounted around the fixed glass part,
The upper end portion of the partition sash is joined to the window upper reinforcement through an upper bracket projecting upward from the upper end portion ,
The weather strip is positioned between each side surface portion to be attached to the vehicle outer surface side of the door outer panel and the vehicle interior side of the door inner panel around the fixed glass portion, and the fixed glass. possess a central portion in which a groove is formed for mounting the, of the respective side portions, the side surface portions of at least the vehicle outer side is, the corner portion adjacent the upper end joint portion of the partition sash, the upper joint In the vehicular door seal structure having a tip portion joined to the upper end portion of the glass run across the
The window upper reinforcement has an extension part extended from the upper end joint part of the partition sash to the fixed glass part side,
The weather strip, the are from the back over the center portion is projected upward to have a inner sealing lip in contact with the extension portion, the front edge of the inner seal lip comes into contact with the rear surface of the upper bracket A vehicle door seal structure characterized in that an inner wall extends from the front end portion of the central portion adjacent to the front end edge in the vicinity of the front end portion on the vehicle outer surface side . The window upper reinforcement has an upright portion extending along the door outer panel, a flat portion bent at a lower edge of the upright portion and extended toward the door inner panel, and the flat surface. And a flange portion that is bent downward at a vehicle interior side edge portion and joined to the door inner panel, and the extension portion is extended from the elevation portion and the plane portion. And an extended flat surface portion, and an extended flange portion that extends downward from the vehicle interior side edge portion of the extended flat surface portion and is joined to the door inner panel, and the internal seal lip includes the extended flat surface portion. The vehicle door seal structure according to claim 1, wherein the vehicle door seal structure is in contact with the vehicle door.

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