JPH076027Y2 - Vehicle door unit structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The disclosed technology belongs to a structural technical field of a door opening of a vehicle equipped with a water leakage prevention mechanism.

Thus, according to the present invention, a weather strip is fitted and fixed to a rain gutter flange vertically provided on an inner opening edge of a door frame, while a weather strip is closely attached to a peripheral edge of a door panel corresponding to the rain gutter flange. A vehicle door provided with a freely accessible rain gutter management surface, and the weather strip integrally formed with a main seal portion for the rain gutter management surface and a sub seal portion corresponding to a seating surface of an edge portion of the door frame. The invention relates to a unit structure, and in particular, a seat surface that inclines upward and a seat surface that inclines downward are appropriately formed at predetermined portions of the edge of the door frame that is continuous from the rain gutter flange, and even when the door is closed, the weather strip is elastically deformed. Nevertheless, the invention relates to the vehicle door unit structure in which the weather strip and the seating surface of the inner edge portion of the door frame are in close contact with each other.

<Prior Art> Generally, a weather strip is attached to each opening of an automobile door, luggage, etc., and a gap between each door and the opening is sealed by the weather strip to prevent water or water from entering a vehicle compartment or a luggage room. It is designed to block intrusion of dust and noise.

Thus, the back door of the wagon type vehicle is
As shown in FIG. 6, a rain gutter flange 2 is vertically provided at an opening edge portion inside a door frame 1 provided on a rear surface of the body, and a weather strip 3 is fitted and fixed to the rain gutter flange 2.
Further, it is composed of a door unit in which a rain gutter management surface 5 is provided on the periphery of the door panel 4, and when the door is closed, the door panel 4
Rain gutter management surface 5 of the door frame 4 is pressed against the weather strip 3 on the side of the door frame 1, and the weather strip 3 causes the door panel 4 to move.
And the door frame 1 was sealed.

As shown in FIG. 6, the weather strip 3 is provided with a bulging main seal portion 6 having a ring-shaped cross section at the upper end thereof to serve as an abutment surface of the door panel 4 for the rain gutter management portion 5. A slit 8 is formed in the lower base body 7 so that the rain gutter flange 2 of the door frame 1 is inserted and sandwiched in the slit 8, and the lower end portion of the base body 7 on the door frame 1 side is also provided. A sub-seal portion 10 was extended to the seat surface 9 at the edge of the door frame 1.

<Problems to be solved by the invention> However, in the conventional door unit such as the back door portion of the wagon type vehicle, since the weather strip has a limit of expansion and contraction, the design of the door panel and the corresponding door frame is limited. There was a disadvantage that the degree of freedom of was small.

That is, in the conventional door unit, as shown in FIGS. 3 to 6, the weather strip 3 is sandwiched between the rain gutter flanges 2 of the door frame 1 and the sub-seal portion 10 of the weather strip 3 on the door frame 1 side.
Over the entire opening edge portion of the door frame 1 so as to uniformly abut on the seat surface 10 extending in a direction perpendicular to the rain gutter flange 2, so that the weather strip 3 is kept in a predetermined amount (generally about When curved with a diameter of 80 ^R ) or less, if the curved portion is convex to the door frame 1 as shown by A in FIG. Warp,
As shown in FIG. 7, the main seal portion 6 is pushed upward, and the curved portion becomes the door frame 1 like the portion indicated by B in FIG.
On the other hand, in the case of being concave, the sub-seal portion 10 reaches the contraction limit and causes wrinkles as shown by the chain line in FIG. 6, and as a result, in the former case, unevenness is generated on the upper surface of the main seal portion 6. The close contact between the main seal portion 6 and the door panel 4 when the door is closed cannot be maintained, and in the latter case, a gap is created between the sub seal portion 10 of the weather strip 3 and the seat surface 9 of the door frame 1 to keep them in close contact with each other. However, there is a drawback that water will leak from these parts into the passenger compartment, and there is also a problem that design restrictions are caused due to this.

Further, because the curvature of the weather strip is restricted due to the above-mentioned cause, the corner portion of the door frame has to be curved with a large diameter to some extent, which inevitably reduces the opening area of the door frame. In particular, there is also a drawback in that luggage or the like may have a problem when loading and unloading luggage.

Thus, as the technology of the vehicle door unit at present, for example, as disclosed in Japanese Utility Model Laid-Open No. 61-93375, a weather strip attached to a door frame and a rain gutter management surface of a door panel are brought into close contact with each other. For this reason, although a rain gutter management surface having a concave curved surface has been devised, these techniques have not been able to sufficiently solve the above problems.

The object of the present invention is to solve the problems of the vehicle door unit based on the above-mentioned prior art, and to maintain the sealing of the weatherstrip between the door frame and the door panel with a great degree of freedom while maintaining the weatherstrip. It is possible to improve the design of the door frame and the door panel by making it possible to arrange it in the interior, and it is also possible to improve practicality by expanding the opening area of the door frame. It is intended to provide a door unit structure.

<Means / Actions for Solving Problems> In order to solve the above-mentioned problems, the structure of the present invention, which is based on the above-mentioned utility model registration claim, is designed to solve the above-mentioned problems. A rain gutter flange is hung vertically on the opening edge, and a weather strip is fitted and fixed to the rain gutter flange, and the main seal part of the upper end of the weather strip is in close contact with the rain gutter management surface provided on the peripheral part of the door panel. In addition, a slanted seat surface corresponding to the warp shape of the weather strip sub-seal portion is formed in the convex curved portion so that the edge of the door frame corresponds to the shape of the rain gutter flange in plan view, and the concave curved surface is formed. An inclined seat surface corresponding to the contracted fold shape of the weatherstrip sub-seal portion should be formed in the area, and at a location where the weatherstrip sub-seal portion is straight, it should be at a right angle from the rain gutter flange. Technical measures are taken so as to make close contact with the seat surface extending in the direction, and at the convex curve portion and the concave curve portion, respectively, intimately contact with the inclined seat surface that is appropriately inclined downward or upward from the rain gutter flange. It is a thing.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings. The drawings showing the conventional modes of FIGS. 4 to 7 are incorporated as they are, and the same parts as those of the conventional mode will be described by using the same reference numerals.

Reference numeral 1'denotes a door frame which is attached to a back door portion of a wagon type vehicle, and a door panel 4 is attached to an upper end portion of the door frame 4 so as to be openable and closable via a hinge (not shown).

The door frame 1 ′ is contoured by the outer panel 11 forming the outer surface of the body and the turn signal lamp covers 12, 12 attached to both sides below the outer panel 11, and when the door panel 4 is closed. The outer surface of the outer panel 11 and the outer surface of the lamp cover 12 are flush with each other, and the inner panel 13 is attached to the inner portion of the outer panel 11 to form the inner contour of the door frame 1 '. A rain gutter flange 2 extending vertically is integrally formed on the opening edge portion.

As shown in FIGS. 3 and 5, the rain gutter flange 2 is formed over the entire opening edge so as to avoid the back window glass 14 and the lamp cover 12, and an integral weather strip 3 is placed on the exterior. Has been done.

The weather strip 3 is attached to the bottom surface of the rain gutter flange 2.
A main seal portion 6 having a ring-shaped cross section is integrally formed on an upper portion of a base body 7 having a slit 8 for sandwiching, and one end of the base body 7 continuous from the main seal portion 6 extends in a direction perpendicular to the end. A flat plate-shaped sub-seal portion 10 is extended, and the main seal portion 6 on the upper surface of the base body 7 is brought into close contact with the rain gutter management surface 5 provided on the peripheral portion of the lower surface of the door panel 4 when the door panel 4 is closed. The sub-seal portion 10 that is in contact with and extends in a right angle direction from one end of the base body 7 is in close contact with the seat surface 9 at the opening edge of the door frame 1 '.

Further, as shown in FIG. 1, the seating surface 9 is a convex curved portion such as the portion indicated by A in FIG. 5 and is downward at a predetermined angle θ ₂ from the lower end portion of the rain gutter flange 2 over substantially the entire area thereof. As shown in FIG. 2, a part of the concave curve portion such as the portion indicated by B in FIG. 5 is formed at a predetermined angle θ ₃ from the lower end portion of the rain gutter flange 2. Is inclined upward and formed in a fold shape.

Then, as shown in FIG. 6, the other portion of the seat surface 9, that is, the portion having a substantially linear shape in a plan view, extends from the lower end portion of the rain gutter flange 2 in a direction perpendicular to the angle (θ ₁ = 90 °). Is formed.

The inclination angles θ ₂ and θ ₃ of the seat surface 9 with respect to the rain gutter flange 2 are set in correspondence with the curved state of the rain gutter flange 2 in plan view, and the smaller the radius of curvature of the curve is, the more the inclination angle θ _{2 is changed.} , Θ ₃ should be set larger.

In the above configuration, when the weather strip 3 is attached to the door frame 1 ′, the rain gutter flange 2 is inserted into the slit 8 provided in the base body 7 of the weather strip 3 so that the weather strip 3 is attached to the rain gutter flange 2. Sandwiched,
The sub-seal portion 10 extending from one end of the base body 7 is brought into contact with the seat surface 9 of the door frame 1 '.

At this time, a stress in the extending direction is applied to the sub-seal portion 10 of the weather strip 3 at a curved portion where the seat surface 9 of the door frame 1'is a convex curve in plan view as shown by A in FIG.
If the curvature has a small radius of curvature that exceeds the extension limit of the weather strip 3, the tip of the sub-seal portion 10 will warp downward, but the seat surface 9 of this portion of the door frame 1'will have a wide range in advance. Since it is formed so as to incline downward at a predetermined angle θ ₂ , the sub-seal portion 10 and the seating surface 9 can be surely secured at that portion even if the sub-seal portion 10 warps. They come into close contact with each other, and the rise of the main seal portion 6 due to the warp of the sub seal portion 10 is eliminated.

Further, in the curved portion where the seat surface 9 of the door frame 1'is a concave curve in plan view as shown by B in FIG. 5, stress in the shrinking direction is applied to the sub seal portion 10 of the weather strip 3 and When the curvature has a small radius of curvature that exceeds the contraction limit of the weather strip 3, the sub-seal portion 10 is distorted and the portion thereof is curved in a vertical direction like a fold, but this portion of the door frame 1'is Since the seating surface 9 of the portion is preliminarily formed so as to be poled upward and upward at a predetermined angle θ ₃ , the fold-shaped portion of the sub-seal portion 10 is firmly adhered along the upper inclined surface of the seating surface 9. Abut.

Therefore, the sub-seal portion 10 of the weather strip 3 and the seat surface 9 of the door frame 1 ′ come into close contact with each other over the entire area, and the main seal portion 6 of the weather strip 3 is in contact.
When the door panel 4 is closed, it comes into complete contact with the rain gutter management surface 5 of the door panel 4, and the entry of rainwater or the like through the gap between the door frame 1 ′ and the door panel 4 is completely blocked. Become so.

The embodiment of the present invention is not limited to the above-mentioned embodiment, and various embodiments can be adopted.

<Effects of the Invention> As described above, according to the present invention, basically, the weather strip is sufficiently maintained while the door frame and the door panel are sufficiently sealed.
It will be possible to install it on the door frame with a large degree of freedom, and as a result, the degree of freedom in designing the door frame and the door panel will be greatly expanded, and the opening area of the door frame will be expanded. Excellent effect is achieved.

That is, the edge seating surface extending from the rain gutter flange of the door frame is formed in a shape corresponding to the warp shape of the sub-seal portion of the weather strip in the convex curved portion, and in the concave curved portion of the weather strip. By forming the sub-seal part in a shape corresponding to the contracted fold shape, even if the door panel and the door frame are provided with a curved portion having a small radius of curvature, the sub-seal of the weather strip warps up. The parts and shrink folds are always in close contact with the corresponding edge seats of the door frame, and the weather strip main seal is not affected by the deformation of the sub seal, completely sealing the rain gutter management surface of the door panel. Therefore, the sub-seal part of the weather strip and the edge seating surface of the door frame, the main seal part of the weather strip and the door panel are Water leakage from the contact surface of each trough management plane is achieved an excellent effect that comes to be reliably prevented.

[Brief description of drawings]

1 to 6 show one embodiment of the present invention, and the drawings from FIG. 3 onward also serve as explanatory views of the conventional mode. FIG. 1 is an enlarged sectional view corresponding to II of FIG. 2 is a sectional view corresponding to the same II-II, FIG. 3 is a plan view, FIG. 4 is a sectional view corresponding to IV-IV in FIG. 3, FIG. 5 is a plan view of a door frame, and FIG. 6 is FIG. VI
Corresponding enlarged cross-sectional view, FIG. 7 shows a conventional mode, VI of FIG.
It is an expanded sectional view corresponding to. 4 ... Door panel, 5 ... Rain gutter management surface, 1 '... Door frame, 2 ... Rain gutter flange, 3 ... Weather strip, 6
...... Main seal part, 9 ...... edge seat surface, 10 ...... sub seal part, A ...... convex curve part, B ...... concave curve part

Claims (1)

[Scope of utility model registration request] 1. A rain gutter management surface is provided at a peripheral portion of a door panel, and a rain gutter flange is vertically provided at an opening edge portion of an inside of a door frame, and a weather strip is fitted and fixed to the rain gutter flange. In a vehicle door unit structure in which a main seal portion for the rain gutter management surface of the door panel is bulged at its upper end and a sub seal portion for the edge seating surface of the door frame is extended from the main seal portion, The edge seating surface of the door frame is formed in a shape corresponding to the warped shape of the sub-seal portion of the weather strip in the convex curved portion, and in a shape corresponding to the contracted fold shape of the sub-seal of the weather strip in the concave curved portion. Vehicle door unit structure characterized by.