JP5780215B2 - Weather strip mounting structure to door frame - Google Patents

Description

  The present invention relates to a structure for attaching a weather strip to a door frame.

  A structure is disclosed in which a protrusion having a T-shaped cross section is provided on the upper surface of the door frame, and the lower part of the weather strip is fitted to the protrusion (see Patent Document 1).

JP 2008-80949 A

  However, in the above-described conventional example, since the upper portion of the weather strip that is not held by the protrusion can be greatly bent, the deterioration of the sealing property between the vehicle door and the vehicle body due to the weather strip is suppressed. It was difficult.

  In view of the above-described facts, an object of the present invention is to suppress excessive bending of a weatherstrip and to prevent entry of foreign matter from outside the vehicle into the vehicle interior.

The invention according to claim 1, the door frame of the vehicle door, the weather strip having a hollow portion, provided on the door frame, the weather strip is fitted is attached, the tip extends into the hollow portion and the A mounting portion exposed in the hollow portion .

The weatherstrip mounting structure of the door frame according to claim 1, may be the attachment portion that are exposed in the hollow portion extends into the hollow portion of the weather strip, to suppress the deflection of excessive the weather strip. For this reason, entry of foreign matter from the outside of the vehicle into the vehicle compartment can be suppressed.

  According to a second aspect of the present invention, in the weather strip mounting structure to the door frame according to the first aspect, any one of the door frame and the vehicle body is disposed in the gap between the door frame and the vehicle body in the closed state in the cross section in the vehicle inside / outside direction. However, when a straight line is drawn in a direction leading to the inside and outside of the vehicle, the attachment portion extends to a position where it intersects the straight line.

In the weather strip mounting structure to the door frame according to claim 2, even if the foreign matter enters a gap between the door frame and the vehicle, and is likely to penetrate the weather strip, the progress of the foreign matter is prevented by the mounting portion. Can do. For this reason, it can suppress that a foreign material penetrates the weather strip and enters the vehicle compartment linearly from the outside of the vehicle.
According to a third aspect of the present invention, in the weather strip mounting structure to the door frame according to the first or second aspect, the fitting between the mounting portion and the base portion of the weather strip is a labyrinth structure.
According to a fourth aspect of the present invention, in the weather strip mounting structure to the door frame according to the third aspect, the mounting portion extends from the door frame to both sides in the thickness direction of the vertical wall portion. A lateral wall portion that fits with the base portion;
According to a fifth aspect of the present invention, in the weather strip mounting structure to the door frame according to any one of the first to fourth aspects, in the closed state of the vehicle door, the tip of the mounting portion is the Do not touch the inner surface of the hollow part.

  As described above, according to the weather strip mounting structure to the door frame according to claim 1, excessive bending of the weather strip can be suppressed, and entry of foreign matter from outside the vehicle into the vehicle interior can be suppressed. An excellent effect is obtained.

  According to the weather strip mounting structure to the door frame of the second aspect, it is possible to obtain an excellent effect that foreign matter can be prevented from penetrating through the weather strip and linearly entering the vehicle interior from the outside of the vehicle.

It is a perspective view which shows the vehicle which has a weather strip attachment structure to a door frame. FIG. 2 is an enlarged cross-sectional view taken along the line 2-2 in FIG. 1, showing that a weather strip attachment portion suppresses entry of foreign matter from the outside of the vehicle into the vehicle compartment in the weather strip attachment structure to the door frame. It is the A section enlarged view in FIG. 2 which shows the attachment part of a weather strip. FIG. 3 is a cross-sectional view corresponding to FIG. 2, showing that in a structure for attaching a weather strip to a door frame, transmission of sound from the outside of the vehicle to the vehicle interior is suppressed by a weather strip attachment portion.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. 1 and 2, a weather strip mounting structure S to a door frame according to the present embodiment includes a door frame 12 of a vehicle door 10, a weather strip 14, and a mounting portion 16.

  In FIG. 2, a door frame 12 is a portion corresponding to a window frame in the vehicle door 10 (FIG. 1), and has, for example, a hollow closed cross-sectional structure by roll forming of a steel plate or extrusion forming of aluminum. An overhanging portion 12 </ b> A that projects to the outside of the vehicle is provided on the upper outer side of the door frame 12. A glass run 20 is fitted and attached to the overhanging portion 12A at its fitting portion 20D.

  The glass run 20 is a sealing member that is in elastic contact with the door glass 18 when the door glass 18 is closed to ensure airtightness and watertightness between the door glass 18 and the door frame 12. The glass run 20 has a lip 20A that contacts the outer surface of the door glass 18, a lip 20B that contacts the inner surface, and a lip 20C that contacts the end surface. Further, on the vehicle upper side of the fitting portion 20D in the glass run 20, lips 20E and 20F that elastically contact the vehicle body 22 when the vehicle door 10 is closed are provided. The lips 20E and 20F are arranged in parallel in the vehicle inside / outside direction.

  Here, the vehicle body 22 is, for example, a roof side rail or an A pillar, and is disposed between the outer panel 24 disposed on the vehicle outer side, the inner panel 26 disposed on the vehicle inner side, and the outer panel 24 and the inner panel 26. Reinforcement 28 is flanged to form a closed cross-sectional structure. Of the vehicle body 22, an opening weather strip 30 is fitted and attached to a flange portion 22A on the vehicle lower side. The opening weather strip 30 is a sealing member that elastically contacts the door frame 12 when the vehicle door 10 is closed to ensure airtightness and watertightness between the door frame 12 and the vehicle body 22.

  The weather strip 14 is a sealing member that elastically contacts the vehicle body 22 when the vehicle door 10 is closed to ensure airtightness and watertightness between the door frame 12 and the vehicle body 22. It extends along the upper surface. As shown in FIG. 3, the weather strip 14 is fitted and attached to the attachment portion 16 at, for example, a base portion 14B. Specifically, it has an internal holding structure in which the mounting portion 16 is fitted inside the base portion 14 </ b> B of the weather strip 14. The weather strip 14 is made of an elastic body such as rubber, and has a hollow portion 14A therein. Thereby, the flexibility of the weather strip 14 at the time of opening and closing of the vehicle door 10 is ensured.

  As shown in FIGS. 2 to 4, the attachment portion 16 is provided on the door frame 12, the weather strip 14 is fitted and attached, and the tip 16 </ b> A extends into the hollow portion. The mounting portion 16 is provided on, for example, the upper surface of the door frame 12 that faces the vehicle body 22. In the illustrated example, the attachment portion 16 is integrally formed with the door frame 12 by extrusion molding of aluminum. Specifically, the mounting portion 16 includes a vertical wall portion 16B that extends from the upper surface of the door frame 12 to the vehicle inner side and extends upward, and a horizontal wall portion 16C that projects to both sides in the thickness direction of the vertical wall portion 16B. Have. In other words, the attachment portion 16 is formed in a cross-shaped cross section.

  Of the vertical wall portion 16B, most of the upper side of the vehicle from the horizontal wall portion 16C is located in the hollow portion 14A of the weather strip 14. The lateral wall portion 16 </ b> C is a portion that fits with the base portion 14 </ b> B of the weather strip 14. When the horizontal wall portion 16C projects to both sides in the thickness direction of the vertical wall portion 16B, the fitting between the base portion 14B of the weather strip 14 and the attachment portion 16 has a labyrinth structure.

  In a cross section (vertical cross section) in the vehicle width direction, which is an example of the inside and outside of the vehicle, the gap 32 between the door frame 12 and the vehicle body 22 in the closed state is connected to the inside and outside of the vehicle regardless of the door frame 12 or the vehicle body 22. When the straight line L is drawn, the vertical wall portion 16B of the mounting portion 16 extends to a position where it intersects the straight line L. In other words, the length of the vertical wall portion 16B in the attachment portion 16 is set so that the tip end 16A is positioned on the vehicle upper side of the straight line L.

  The weather strip 14 is brought into an elastically deformed state indicated by a solid line from a natural state indicated by a two-dot chain line by elastically contacting the vehicle body 22 when the vehicle door 10 is closed. In the closed state of the vehicle door 10, it is desirable that the tip end 16 </ b> A (vertical wall portion 16 </ b> B) of the attachment portion 16 does not contact the inner surface of the hollow portion 14 </ b> A in the weather strip 14. This is because it is possible to prevent the excessive stress from acting on the mounting portion 16 and to secure the closing property of the vehicle door 10.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In FIG. 2, in the weatherstrip attachment structure S to the door frame 12 according to the present embodiment, excessive bending of the weatherstrip 14 is suppressed by the attachment part 16 extending into the hollow part 14A of the weatherstrip 14 at the time of a collision, for example. can do. Thereby, the fall of the sealing performance between the vehicle door 10 and the vehicle body 22 by the weather strip 14 can be suppressed.

  Further, since the vertical wall portion 16B of the attachment portion 16 extends to a position where it intersects the straight line L, for example, when a collision occurs, a foreign object (not shown) enters the straight line L in the gap 32 between the door frame 12 and the vehicle body 22. Even if it enters the direction of the arrow B along the direction and is likely to penetrate the weather strip 14, the progress of the foreign matter can be prevented by the vertical wall portion 16B of the mounting portion 16. For this reason, for example, at the time of a collision, it is possible to suppress the foreign matter from penetrating the weather strip 14 and linearly entering the vehicle interior from the outside of the vehicle.

  Further, as shown in FIG. 3, since the fitting between the base portion 14 </ b> B of the weather strip 14 and the attachment portion 16 has a labyrinth structure, water enters between the weather strip 14 and the door frame 12 in the direction of arrow C. Even in this case, it is possible to prevent the water from entering at the fitting portion between the base portion 14 </ b> B of the weather strip 14 and the attachment portion 16. Thereby, the watertightness between the weather strip 14 and the attachment part 16 can be improved.

  Further, in this embodiment, since the mounting portion 16 is fitted inside the base portion 14B of the weather strip 14, it is compared with an external holding structure that holds the weather strip 14 from the outside by the door frame 12. Thus, a large cross section of the door frame 12 can be secured. Thereby, the strength and rigidity of the door frame 12 can be improved. Further, by adopting the internal holding structure, the mounting portion 16 cannot be seen when the vehicle door 10 is opened and closed, so that the merchantability of the vehicle can be maintained.

  Furthermore, as shown in FIG. 4, even when sound outside the vehicle enters the direction D of the arrow D from the gap 32 between the door frame 12 and the vehicle body 22 and passes through the glass run 20 or the weather strip 14, the sound is heard. Attenuating at the mounting portion 16 can suppress the transmission of sound into the vehicle width. Thereby, the quietness in a vehicle interior can be improved.

[Other Embodiments]
The vehicle door 10 in FIG. 1 is a side door, but the weatherstrip mounting structure S to the door frame is not applied only to the side door, but a vehicle door such as a bag door (not shown). It can be applied to various doors that can be opened and closed.

  In FIG. 2, the attachment portion 16 extends to a position where it intersects the straight line L. However, the attachment portion 16 may be terminated at the vehicle lower side than the straight line L.

  In addition, the said embodiment is an example and can be implemented in various changes within the range which does not deviate from the summary. It goes without saying that the scope of rights of the present invention is not limited to these embodiments.

DESCRIPTION OF SYMBOLS 10 Vehicle door 12 Door frame 14 Weather strip 14A Hollow part 16 Attachment part
16A tip
16B vertical wall
16C Horizontal wall 22 Vehicle body L Straight line S Weather strip mounting structure to door frame

Claims (5)

A door frame of a vehicle door;
A weatherstrip having a hollow portion;
An attachment part provided on the door frame, fitted with the weatherstrip and attached, a tip extending into the hollow part and exposed in the hollow part ;
A weatherstrip mounting structure to a door frame. In the vehicle inside / outside cross section, when a straight line is drawn in the gap between the door frame and the vehicle body in the closed state in a direction leading to the vehicle inside / outside without any of the door frame and the vehicle body,
The weather strip mounting structure for a door frame according to claim 1, wherein the mounting portion extends to a position intersecting with the straight line. The weatherstrip attachment structure to the door frame of Claim 1 or Claim 2 with which the fitting with the said attaching part and the base part of the said weatherstrip becomes a labyrinth structure. The weather strip attachment to the door frame according to claim 3, wherein the attachment portion includes a vertical wall portion extending from the door frame, and a lateral wall portion projecting on both sides in the thickness direction of the vertical wall portion and fitted to the base portion. Construction. The structure for attaching a weather strip to a door frame according to any one of claims 1 to 4, wherein the tip of the attachment portion does not contact the inner surface of the hollow portion when the vehicle door is closed.