JPH0785967B2 - Multiple seal structure for vehicle door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a multiple seal structure for a vehicle door.

B. Conventional Technology As a multiple seal structure for automobile doors
A triple seal structure is disclosed in, for example, Japanese Patent Publication. In this type of triple seal structure, the door sash is provided with first to third seal portions, and these three seal portions are sandwiched between the front pillar, the rear pillar and the roof rail to seal the door.

C. Problems to be Solved by the Invention By the way, in order to increase the rigidity of the front pillar and the rear pillar, these pillars are composed of a pillar main body and an extension portion extending from the pillar main body to the door opening side. The applicant has created a body structure. However, when the above-mentioned triple seal is applied to a vehicle body structure including such a pillar extension portion, there are the following problems.

Explaining the front pillar, the front pillar includes a pillar inner panel and a pillar outer panel, and a welt is provided at a joint portion between the pillar inner panel and the pillar outer panel. One seal portion of the triple seal portion is provided on the door sash side through the welt at the panel joint portion on the door opening side.
Therefore, when the front pillar is extended to the door opening side as described above, a joint portion between the pillar outer panel and the pillar inner panel is formed at the door opening side end of the pillar extension portion, and the sealing portion is provided therethrough via the welt. Will be provided. At this time, in the case of a vehicle body using a full door in which the door body and the door sash are integrally press-molded, the width of the door sash (width in the direction along the side surface of the vehicle body) depends on the molding limit at the time of pressing. Is widely molded,
The interior surface of the door sash can be the contact surface of the seal portion. However, in the sash type door in which the door body and the door sash are separately molded and assembled,
Since the width of the door sash is made as narrow as possible in order to secure a sufficient window opening area, it is not possible to provide the contact surface of the seal portion provided in the expansion portion on the door sash. Of course, the door sash may be provided with a new new product that forms a contact surface with the seal portion, but this not only increases the number of parts but also the number of assembly steps.

An object of the present invention is to provide a vehicle in which the door can be sealed at the expanded portion only by making a subtle design change of a member arranged on the door side without adding a new component even if the pillar is provided with an expanded portion. It is to provide a multiple seal structure for a door.

D. Means for Solving the Problem A case where the present invention is applied to a front pillar will be described with reference to FIG. 1 showing an embodiment. According to the present invention, a front door 10 is provided with a door sash 60, and this door sash 60 vehicle is provided. A corner piece 80 is provided, which is composed of the corner piece inner 81 on the indoor side and the corner piece outer 82 on the vehicle exterior side,
It is applied to a vehicle door that seals between the front door 10 and the front pillar 30 with a plurality of seal portions.

And the above-mentioned problem is that at least the pillar extension portion 30B extending from the pillar body 30A to the corner piece 80 is formed in the front pillar 30 corresponding to the installation location of the corner piece 80, and the corner piece inner 80 has a passenger compartment. A step portion 812 protruding inward is provided, and a seal surface 811 that is in close contact with the seal portion 34 when the door is closed is provided at the tip of the step portion 812, and another seal portion is provided between the pillar book 30A and the door sash 60. 62a, 6
It is solved by providing 2b.

E. Action When the front door 10 is closed, the seal portion 34 is pinched between the corner piece 80 and the extension portion 30B of the front pillar 30, and another seal portion is provided between the door sash 60 and the front pillar 30. 62a and 62b are clamped. As a result, the front door 10 is triple-sealed. That is, even if the expansion portion 30B is provided to increase the rigidity of the front pillar 30,
Triple sealing is possible as before without adding new parts.

In the above D and E for explaining the configuration of the present invention, the present invention has been described with reference to the drawings of the embodiments for the sake of clarity, but the present invention is not limited to the embodiments.

F. Embodiment One embodiment of the present invention will be described with reference to FIGS. 1, 3 and 4 are respectively I-I in FIG.
FIG. 4 is a sectional view taken along line III-III and line IV-IV.

Fig. 2 is a side view of the automobile, where 10 is the front door and 20
Is a rear door, 30 is a front pillar, 40 is a roof side rail, and 50 is a rear pillar. The front door 10 and the rear door 20 are provided with door sashes 60 and 70, respectively. The door sashes 60 and 70 are provided with corner pieces 80 and 90, respectively. 83 is a door opening.

In FIG. 1, the front pillar 30 is formed into a closed cross section by forming a pillar inner panel 31 and a pillar outer panel 32 as shown in the figure and joining both ends to each other. The front pillar 30 includes a pillar main body 30A and a pillar extension portion 30B extending from the pillar main body 30A to the door opening 83 side (vehicle rear side). A door sash is attached to the end of the pillar extension 30B on the side of the door opening 83 through the welt 33.
A seal portion 34 is provided on the 60 side. Door sash 60
Has a sash frame 61 having a shape corresponding to the door opening 83 of the vehicle body, and the lower end of the sash frame 61 has an inner panel 11 and an outer panel 12 that form the door body of the front door 10.
It is inserted and fixed in the space between. A weather strip 62 is provided on the surface of the sash frame 61 facing the front pillar 30.
When the front door is closed, the seal body portion 62a and the lip portion 62b are pressed by the front pillar 30 to seal the front door 10.

A bracket 63 extending rearward of the vehicle is fixed to the sash frame 61, and a corner piece inner 81 is attached thereto by a clip 64. Welt for corner piece inner 81
A step portion 812 protruding toward the 33 side is formed, and a seal surface 811 is formed at the tip of the step portion 812 along the front-rear direction of the vehicle body, and the seal portion 34 seals when the front door is closed.
The front door 10 is sealed by being pinched between the front door 10 and the welt 33. Guides are attached to the end of the bracket 63 on the door opening 83 side.
65 is fixed, and grass run 66 is attached there.
The edge of the window glass 21 is inserted into the glass run 66.
The corner piece outer 82 has a boss 821 on its back surface, and a screw 67 inserted from the bracket 63 is screwed into the boss 821 to fix the corner piece outer 82 to the bracket 63. The corner piece 80 is configured by the corner piece inner 81 and the corner piece outer 82.

In the III-III line cross section of FIG. 3, the front pillar 30 is composed of only the pillar book 30A, and the seal portion 34 fixed to the welt 33 contacts the sash frame 61 to seal the front door 10. Other than that, it is the same as the cross section taken along the line I-I of FIG. 1, and the front door 10 is also sealed by the seal body portion 62 a and the lip portion 62 b of the weather strip 62. In addition,
Reference numeral 22 is a trim that hides the front pillar 30 from the vehicle interior, and is attached to the pillar inner panel 31 with a clip 23. Further, 24 is a windshield glass bonded to the front pillar 30 with an adhesive 25.

The cross section taken along the line IV-IV in FIG. 4 has the same structure as each of the above cross sections except that the door sash 60 is in contact with the roof side rail 40 via each seal member. The roof side rail 40 is composed of a roof side rail inner panel 41 and a fool side rail outer panel 42, and a welt 33 is attached to the joint portion thereof similarly to the front pillar 30, and a seal portion 34 is fixed to the welt 33. Has been done.
Further, 43 is a roof panel having side edges joined to the roof side rail 40.

Although not shown, the door sash of the front door 10
The sealing structure on the vehicle rear side of 60 is almost the same as the above-mentioned structure.

As described above, in this embodiment, the vehicle body door opening 83 has the welt 33.
A seal portion 34 is provided surrounded by and a weather strip 62 is provided on the entire circumference of the sash frame 61. In the weather strip 62, the seal body portion 62a and the lip portion 62b contact the vehicle body to perform double sealing, and the seal portion 34 is the corner piece inner 81 in the corner piece portion.
In other cases, the sash frame 61 is contacted to perform sealing. Therefore, even if the expanded portion 30B is formed to increase the rigidity of the front pillar 30, a triple seal similar to the conventional one can be achieved without adding new parts.

Although the front door 10 has been described above, the rear door 20
Can be similarly configured. Further, the present invention can be applied to a double seal, and in some cases, to a seal structure having four or more layers. Furthermore, in the above description, the corner piece inner 81 is provided with a step, but it may be flat. Further, although the seal portion 34 is fixed to the welt 33, it may be fixed to the corner piece inner 81.

G. Effect of the Invention According to the present invention, the seal portion is pinched between the corner piece inner and the extension portion of the front pillar or the rear pillar, and another seal portion is interposed between the door sash and the front pillar or the rear pillar. Since it is designed to be pinched, even if an extension is provided on the pillar to increase the rigidity of the front pillar, etc., without adding a new member,
A small design change in which only the corner piece inner, which is a member on the vehicle interior side of the corner piece, is changed enables the same multiple seal as before.

Further, the corner piece inner is provided with a step portion projecting to the inside of the vehicle, and the tip of the step portion is provided with a sealing surface that is in close contact with the seal portion when the door is closed. Therefore, even if the shape of the door, the shape of the pillar, or the positional relationship between the door and the pillar when the door is closed is different, a seal that can be brought into close contact with the seal part only by changing the design of the protruding angle and the protruding amount of the step portion. A surface can be formed. Therefore, it is possible to increase the degree of freedom in designing the shape of the door, the shape of the pillar, and the positional relationship between the two while forming a multiple seal around the door.

[Brief description of drawings]

1 to 4 illustrate one embodiment of the seal structure according to the present invention. FIG. 1 is a sectional view taken along the line II of FIG. 2, FIG. 2 is a partial side view of an automobile, and FIG. Figure 3 is III-III in Figure 2.
4 is a sectional view taken along line IV-IV in FIG. 10: Front door 11: Door outer panel 12: Door inner panel 21: Window glass, 30: Front pillar 30A: Pillar body, 30B: Pillar extension part 31: Pillar inner panel 32: Pillar outer panel 33: Welt, 34: Seal part 61: Door sash, 61: Sash frame 62: Weather strip 62a: Seal body 62b: Lip, 63: Bracket 65: Guide, 66: Glass run 80: Corner piece 81: Corner piece inner 82: Corner piece outer

Claims (1)

[Claims] 1. A door is provided with a door sash formed separately from a door body, and the door sash includes a corner piece inner on the vehicle interior side and a corner piece outer on the vehicle exterior side. In a multiple-seal structure for a vehicle door in which a plurality of seal portions are provided between the door and the front pillar or the rear pillar, a front pillar or a rear pillar is provided at least corresponding to the installation location of the corner piece. Is formed with a pillar extension portion extending from the pillar body toward the door opening side, and the extension portion is provided with a seal portion, while the corner piece inner is provided with a step portion protruding toward the vehicle interior side, and the step portion is provided. A seal surface is provided at the tip of the seal member that is in close contact with the seal portion when the door is closed, and another seal portion is provided between the pillar body and the door sash. Multiple seal structure characterized by being provided.