JP2002321530A - Window frame device for car door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a window frame of a car door which can reduce the weight and further enhance the strength and rigidity. SOLUTION: In a window frame of a car door, the upper part, which extends to the direction of top and bottom and guides the window up and down, is constituted by the only window frame body 14 and the middle part of the top and bottom is constituted by the window frame 14 and a first reinforcement member 20 and the lower part of the top and bottom is constituted by the window frame body 14, the first 20 and a second reinforcement member 30 so that the intense rigidity needed for each part of the window frame is secured and also the weight or the production cost can be reduced by avoiding a waste part. And the first reinforcement member 10 has a first 21 and a second part 22 with channel shape on the cross section so that a great cross section coefficient is secured and the intensity or the rigidity can be enhanced enough.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a window frame provided on a door of an automobile for guiding up and down movement of a door glass and holding an outer peripheral portion of the door glass. The present invention relates to a technology capable of reducing weight while reducing the weight.

[0002]

2. Description of the Related Art As shown in FIGS. 5 to 7, a door frame of an automobile is provided with a window frame for guiding the ascending and descending of the door glass 2 and for firmly holding the periphery of the door glass 2 which has been fully raised. 3 are provided.

A vertically extending portion 3 of the window frame 3
a is formed from the outer panel 4 and the inner panel 5 as shown in FIG.
An opening 3b for receiving a is provided. A run channel 6 that slidably seals the outer peripheral portion 2a of the door glass 2 is provided in the opening 3b. A roll forming member 7 having a substantially U-shaped cross section for holding the run channel 6 is fixed to the outer panel 4 and the inner panel 5 by bonding or spot welding.

In FIG. 7, a reference numeral 8 and a two-dot chain line indicate a weather strip for liquid-tightly sealing the space between the vehicle body and the window frame 3 (not shown). further,
6 is a reinforcing member provided at the window shoulder of the door 1 and at the lower end of the window frame 3 to increase the strength and rigidity of the window frame 3.

[0005]

In the above-mentioned conventional window frame structure of an automobile door, as shown by a dotted line in FIG. It extends continuously from the shoulder to the upper end 3c of the window frame 3. As a result, a portion that does not require high strength and rigidity, such as the upper end portion 3c of the window frame 3, is reinforced by the roll forming member 7, so that there is room for further reducing the weight.

Since the cross-sectional shape of the roll forming member 7 is a simple U-shape, the strength and rigidity of the member itself cannot be said to be sufficient. Since it cannot be configured, the strength and rigidity of the window frame 3 cannot be sufficiently increased by effectively utilizing the space inside the window frame 3.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a window frame structure for an automobile door which can solve the above-mentioned problems of the prior art and can further increase the strength and rigidity while reducing the weight.

[0008]

According to a first aspect of the present invention, there is provided a structure of a portion of a window frame of an automobile door, which extends in a vertical direction and guides up and down of a door glass. A window frame body having an opening for receiving a peripheral edge of the door glass, and a first vertically extending portion fixed to the inside of the window frame body along the opening below a vertically intermediate portion of the window frame body. And a second reinforcing member fixed in a gap between the window frame body and the first reinforcing member below a vertically intermediate portion of the first reinforcing member. . The first reinforcing member opens toward the peripheral edge of the door glass, and has one side wall fixed to the window frame body on the outdoor side of the door glass, the first reinforcing member having a U-shaped cross section. A second portion having a U-shaped cross-section that opens toward the indoor surface of the door glass and has one side wall fixed to the window frame body closer to the indoor side than the door glass. . Further, the second reinforcing member includes:
One end is fixed to the bottom wall forming the second portion, and the other end is fixed to the window frame body.

That is, in the window frame structure for an automobile door according to the first aspect, the upper end portion of the portion extending in the vertical direction and guiding the ascending and descending of the door glass is formed only by the window frame main body, and the intermediate portion in the vertical direction. Is formed by the window frame body and the first reinforcing member, and the lower end in the vertical direction is formed by the window frame body and the first and second reinforcing members.
It is possible to reduce the weight and the manufacturing cost by eliminating unnecessary parts while ensuring the necessary strength and rigidity in each part. At this time, since the first reinforcing member has the first and second portions having a U-shaped cross section, a large cross section modulus can be ensured, and the strength and rigidity can be sufficiently increased. Further, one end of the second reinforcing member is fixed to the bottom wall of the second portion forming the first reinforcing member. Therefore, one end of the second reinforcing member is fixed to the first reinforcing member. It can be firmly connected to the window frame body via the reinforcing member. Thereby, a rigid closed cross-sectional structure can be formed by the window frame body and the first and second reinforcing members. Therefore, even at the lower end portion of the window frame where the highest strength and rigidity are required, the thickness of each reinforcing member can be reduced. A sufficiently high strength and rigidity can be ensured without increasing. Further, since the second portion having the U-shaped cross section is provided on the first reinforcing member, the window frame body and the first and second sections are formed.
When each of the reinforcing members is spot-welded, the tip of the spot welder can be inserted into the second portion, and the spot welding operation can be performed easily and reliably.

According to a second aspect of the present invention, there is provided a window frame structure for an automobile door according to the first aspect, wherein a gap between a peripheral edge of the door glass and the window frame is sealed. A sealing member to be stopped is engaged with the opening of the window frame body and the first portion of the first reinforcing member.

That is, in the window frame structure for an automobile door according to the second aspect, the sealing member is engaged with the opening of the window frame body and the first portion of the first reinforcing member. The sealing member can be reliably held even at the upper end of the window frame where no member exists.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a window frame structure for an automobile door according to the present invention will be described below in detail with reference to FIGS. In the following description, the forward and backward direction of the vehicle is referred to as the front and rear direction, the width direction of the vehicle body is referred to as the left and right direction, and the vertical direction is referred to as the up and down direction.

The door 10 of the automobile shown in FIG. 1 is a door on the driver's seat side, and a window frame 11 for guiding the ascending and descending of the door glass 2 and firmly holding the periphery of the door glass 2 which has been fully raised is provided. Is provided.

As shown in FIG. 2, an upper portion of a portion 11a of the window frame 11 which extends vertically and guides the door glass 2 up and down is provided with an outer panel 12 and an inner panel 1 as shown in FIG.
3 is constituted only by the window frame main body 14.

The outer panel 12 extends parallel to the door glass 2 on the outside of the door glass 2 (upper side in the figure), the front end 12a is folded so as not to form an acute angle portion, and the rear end 12b is formed. The inner panel 13 is clinched.

The inner panel 13 has a front wall 13a extending substantially perpendicularly toward the room with a predetermined distance from the room surface 2b of the door glass 2 toward the room (lower side in the figure). An opening 14 a for receiving the peripheral edge 2 a of the door glass 2 is formed together with the outer panel 12. In addition,
In the opening 14a, the periphery 2a of the door glass 2 and the window frame 1
A weatherstrip (sealing member) 15 for sealing the gap between the first and the second liquid-tightly is mounted. A lateral wall 13b extends from an end of the front wall 13a on the indoor side so as to extend in parallel with the door glass 2. Further, a vertical wall 13c extends from the rear end of the horizontal wall 13b so as to extend substantially perpendicularly to the outer panel 13 toward the outdoor side. Further, a horizontal wall 13d extending in parallel with the outer panel 12 extends rearward (right side in the figure) from the outdoor end of the vertical wall 13c, and a gap between the vehicle body side (not shown) and the window frame 11 is made liquid-tight. An attachment portion of the weather strip 8 to be sealed is formed. In addition, the rear end 13e of the inner panel 13 is clinched by the rear end 12b of the inner panel, and the inner panel 13
And a pair.

On the other hand, as shown in FIG.
The first reinforcing member 20 is provided below the intermediate portion in the vertical direction.
Are fixed to the inside of the window frame body 14 so as to extend vertically along the opening 14a.

As shown in FIG. 3, the first reinforcing member 20 includes a first portion 21 having a U-shaped cross section which opens toward the peripheral edge 2a of the door glass 2, and a first portion 21 on the indoor side of the door glass 2. A second section having a U-shaped cross section opening toward the surface 2b
And a portion 22 of FIG.

The first portion 21 includes a lateral wall 23 fixed to the inner surface of the outer panel 12 by spot welding or bonding, and a lateral wall 24 extending parallel to the indoor side at a predetermined distance from the lateral wall 23. , A pair of lateral walls 23, 2
4 and a vertical wall 25 extending substantially perpendicularly to the outer panel 12 by connecting the rear ends thereof. Further, the first portion 21 having a U-shaped cross section fits and holds the rear end of the weather strip 15 outside.

The second portion 22 has a vertical wall 26 fixed to the front wall 13a of the inner panel 13 by spot welding or bonding, and a rear wall parallel to the vertical wall 26 at a predetermined interval. A vertical wall 27 extending and a pair of vertical walls 26, 2
7 are connected to each other on the indoor side and extend from the bottom wall 28 in parallel with the inner panel 13.

That is, since the first reinforcing member 20 has a large section modulus by having the first and second portions 21 and 22 having a U-shaped cross section, its strength and rigidity are sufficiently high. Has become. Therefore, the first reinforcing member 20 can reliably prevent the opening 14a of the window frame main body 14 from opening while sufficiently increasing the strength and rigidity of the window frame main body 14.

On the other hand, as shown in FIG. 1, below the middle portion of the first reinforcing member 20 in the vertical direction, the connecting portion between the window shoulder portion of the door 10 and the window frame 11a is firmly reinforced. The second reinforcing member 30 is provided.

As shown in FIG. 4, the second reinforcing member 30 and the first reinforcing member 20 are provided inside the window frame body 14 in a portion vertically overlapping the first reinforcing member 20. It is disposed in a gap between the panel 13 and the panel 13. The front side wall 31 is provided with the first reinforcing member 2.
The second portion 22 is fixed to a bottom wall 28 by spot welding or bonding. The vertical wall 32 extends toward the outer panel 12 through a gap between the first reinforcing member 20 and the inner panel 13. Further, the rear side wall 33 is the side wall 1 of the inner panel 13.
3d is fixed by spot welding or bonding.

At this time, since the vertical wall 26 adjacent to the bottom wall 28 of the second portion 22 of the first reinforcing member 20 is fixed to the inner panel 13, the front end of the second reinforcing member 30 Can be firmly connected to the inner panel 13 via the first reinforcing member 20. As a result, a rigid closed cross-sectional structure can be formed by the window frame main body 14 and the first and second reinforcing members 20 and 30, so that even when the lower end portion of the window frame 11a where the highest strength and rigidity are required, each reinforcing member is required. Sufficiently high strength and rigidity can be ensured without increasing the thickness of the member.

Further, since the first reinforcing member 20 is provided with the second portion 22 having a U-shaped cross section, the first end of the spot welding machine is inserted into the second portion 22 so that the first portion is formed. Spot welding between the reinforcing member 20 and the second reinforcing member 30 and spot welding between the first reinforcing member 20 and the inner panel 13 can be easily and reliably performed.

That is, according to the window frame structure of the vehicle door of the present embodiment, the upper end of the portion 11a of the window frame 11 that extends in the vertical direction and guides the door glass 2 up and down is formed only by the window frame body 14. The vertical intermediate portion is formed by the window frame main body 14 and the first reinforcing member 20, and the vertical lower end portion is formed by the window frame main body 14 and the first and second reinforcing members 20, 30. Therefore, it is possible to reduce the weight of the window frame 11 by eliminating unnecessary portions while securing necessary strength and rigidity in each portion.

Further, in the window frame structure of the automobile door of the present embodiment, the weather strip 15 is connected to the window frame body 14.
Of the first reinforcing member 20 and the first portion 21 having the U-shaped cross section of the first reinforcing member 20, the weather strip 15 can be securely held even at the upper end portion of the window frame 11a where the first reinforcing member 20 does not exist. Can be held.

Although the embodiment of the window frame structure for an automobile door according to the present invention has been described in detail above, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications are possible. No. For example, in the embodiment described above, the window frame of the door on the driver's seat side of the automobile has been described as an example, but it goes without saying that the present invention can be applied to the window frame of the door on the rear seat side. In addition, by appropriately setting the shape and thickness of the bottom wall 15a of the weather strip 15, the window frame 1 in which the first reinforcing member 20 does not exist is provided.
At the upper end of 1a, the weather strip 15 can be held more reliably.

[0029]

As is apparent from the above description, in the window frame structure for an automobile door according to the present invention, of the window frame for holding the peripheral edge of the door glass, the window glass extends in the vertical direction to raise and lower the door glass. The upper end of the portion to be guided is formed only by the window frame main body, the vertical intermediate portion is formed by the window frame main body and the first reinforcing member, and the vertical lower end is formed by the window frame main body and the first and second windows. Therefore, the weight and manufacturing cost of the window frame can be reduced by eliminating unnecessary parts while securing necessary strength and rigidity in each part. In addition, since the first reinforcing member has the first and second portions having a U-shaped cross section, a large section modulus can be ensured, and the strength and rigidity can be sufficiently increased. Further, since the second reinforcing member has one end fixed to the bottom wall of the second portion forming the first reinforcing member, one end of the second reinforcing member is fixed to the first reinforcing member. It can be firmly connected to the window frame body via the member. Thereby, a rigid closed cross-sectional structure can be formed by the window frame body and the first and second reinforcing members. Therefore, even at the lower end portion of the window frame where the highest strength and rigidity are required, the thickness of each reinforcing member can be reduced. A sufficiently high strength and rigidity can be ensured without increasing. Further, since the second portion having the U-shaped cross section is provided on the first reinforcing member, the tip of the spot welding machine is connected to the second portion when the window frame body is spot-welded to the first and second reinforcing members. The spot welding operation can be easily and reliably performed by being inserted inside. In addition, the sealing member that seals the gap between the peripheral edge of the door glass and the window frame is locked to the opening of the window frame body and the first portion of the first reinforcing member. The sealing member can be reliably held even at the upper end of the window frame where no member exists.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing one embodiment of a window frame structure of an automobile door according to the present invention.

FIG. 2 is a sectional view taken along the line II-II shown in FIG.

FIG. 3 is a sectional view taken along the line III-III shown in FIG. 1;

FIG. 4 is a sectional view taken along the line IV-IV shown in FIG. 1;

FIG. 5 is a side view schematically showing an automobile door.

FIG. 6 is a side view schematically showing a window frame structure of a conventional automobile door.

FIG. 7 is a sectional view taken along the line VII-VII shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile door 2 Door glass 3 Window frame 4 Outer panel 5 Inner panel 6 Weather strip 7 Roll forming member 8 Weather strip 9 Reinforcement member 10 Automobile door 11 Window frame 11a Vertically extending portion 12 Outer panel 13 Inner panel 14 Window frame body 14a Opening DESCRIPTION OF SYMBOLS 15 Weather strip 20 1st reinforcement member 21 1st part 22 2nd part 30 2nd reinforcement member

Claims (2)

[Claims] 1. A structure of a portion of a window frame of an automobile door that extends vertically and guides the ascending and descending of a door glass, the window frame body having an opening for receiving a peripheral edge of the door glass, and the window frame. A first reinforcing member vertically fixed to the inside of the window frame main body along the opening below the vertical middle portion of the main body; and a vertical reinforcing portion below the vertical middle portion of the first reinforcing member. And a second reinforcing member fixed in a gap between the window frame main body and the first reinforcing member, wherein the first reinforcing member opens toward a peripheral edge of the door glass. A first portion having a substantially U-shaped cross-section, the one side wall of which is fixed to the window frame body outside the door glass on the outside of the door glass; Side wall is A second portion having a substantially U-shaped cross section that is fixed to the window frame body on the indoor side of the glass, and one end of the second reinforcing member forms the second portion. A window frame structure for an automobile door, wherein the window frame structure is fixed to a bottom wall and the other end is fixed to the window frame body. 2. A sealing member for sealing a gap between a peripheral edge of the door glass and the window frame is connected to the opening of the window frame body and the first portion of the first reinforcing member. The window frame structure of an automobile door according to claim 1, wherein the window frame structure is stopped.