JPH10138760A - Door frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent occurrence of a height difference in a vehicle widthwise direction between a door frame and a vehicle body and to enhance the aesthetic. SOLUTION: A door frame 21 is composed a first side part 22 extending upward between a door outer panel and a door inner panel, a second side part 23 extending between the door outer panel and the door inner panel and being spaced from the first side part 22, and a top part 24 bridging between the front end parts of the first and second side parts 22, 23. In this arrangement, a gradually changing part 40 having its thickness in the vehicle widthwise direction, which gradually varies is provided in a part of the first and second side parts 22, 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a door frame with a sash for a vehicle.

[0002]

2. Description of the Related Art Next, a conventional example will be described with reference to the drawings.
FIG. 6 is a view for explaining the appearance of a door frame described in Japanese Patent Application Laid-Open No. 7-329572, FIG. 7 is a view taken in the direction of arrow A in FIG. 6, FIG. 8 is a sectional view taken along section line BB in FIG. FIG. 7 is a sectional view taken along section line CC in FIG. 6.

In FIG. 6, a door frame (door sash) 1 includes a door outer panel 10 and a door inner panel 11.
(See FIG. 7) First side 2 extending upward from between
A second side 3 extending upward from the space between the door outer panel 10 and the door inner panel 11 with an interval from the first side 2, and a tip of the first side 2 and the second side 3. And a top part 4 that bridges the

The belt line 1 of the door frame 1
9 are a first holding portion (holder portion) 6 for holding the door weather strip 5 and a door glass run 7.
Holding part (holder part) 8 for holding the
And a closed cross-section (box-shaped cross-section) 9 formed on the vehicle cabin side with respect to the holding portions 6, 8 and an outer side surface (horizontal side) 12 exposed outside the vehicle.

As shown in FIG. 7, the thickness of the door frame 1 in the vehicle width direction gradually decreases from bottom to top. That is, as shown in FIG. 8 and FIG.
The protruding length of the closed sections 9 of the side parts 2 and 3 toward the passenger compartment is gradually reduced from bottom to top.

According to such a configuration, the door frame 1
Rigidity can be increased.

[0007]

Generally, a device such as a window regulator device or a door lock device is built in between a door outer panel below a door belt line 19 and a door inner panel. The thickness in the vehicle width direction suddenly increases below the belt line 19.

FIG. 10 is a view showing a side member on the vehicle body side of the four-door sedan. Among these side members, the shape in the vehicle width direction of the center body pillar 15 adjacent to the door follows a sudden change in thickness in the vehicle width direction at the door belt line 19 due to rigidity, design, and press moldability. Can not.

Therefore, as shown in FIG. 11, the thickness of the center body pillar 15 in the vehicle width direction descends from the roof side rail 20 to the belt line 19 at a substantially constant width, The thickness gradually increases from the vicinity toward the door inner panel 11.

Accordingly, a step having an inconstant depth in the vehicle width direction is provided between the door frame 1 and the center body pillar 15 whose thickness in the vehicle width direction gradually decreases from bottom to top.
(See the shaded area), which is not desirable in design.

The phenomenon that this level difference occurs also occurs between the front body pillar 16 and the quarter panel 17. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a door frame in which a step in a vehicle width direction between a door frame and a vehicle body does not occur, and the design is improved.

[0012]

The above object is achieved by the following invention. [First invention] A first side extending upward from between the door outer panel and the door inner panel, and extending upward from the gap between the door outer panel and the door inner panel with an interval from the first side. In a door frame comprising a second side part projecting out and a top part bridging the front ends of the first side part and the second side part, the thickness in the vehicle width direction gradually increases on the first and second side parts. The door frame is provided with a gradually changing portion that changes to a part.

By providing a gradually changing portion in a part so as to eliminate a step in the vehicle width direction generated between the door frame and the vehicle body, it is possible to prevent a step in the vehicle width direction between the door frame and the vehicle body.

[Second Invention] In the first invention, the cross-sectional shape of the door frame has a first holding portion for holding a door weather strip, a second holding portion for holding a door glass run, and a first and a second holding portion. The vehicle includes a closed section formed closer to the passenger compartment than the second holding section, and an outer surface exposed outside the vehicle, wherein the gradually changing section changes the length of the closed section in the vehicle width direction. .

By partially changing the length of the closed cross section in the vehicle width direction so as to eliminate a step in the vehicle width direction generated between the door frame and the vehicle body side, the distance between the door frame and the vehicle body side in the vehicle width direction is reduced. The occurrence of a step can be prevented.

[Third invention] In the first invention or the second invention, the width of the outer surface of the first and second side portions is gradually reduced from bottom to top.

By gradually reducing the widths of the outer side surfaces of the first and second side portions from the bottom to the top, the design is enhanced. [Fourth invention] In any one of the first invention to the third invention, a corner portion between the top portion and the second side portion may be:
The outer curvature is smaller than the inner curvature.

The design of the corner portion between the top portion and the second side portion is enhanced by making the outer curvature smaller than the inner curvature. [Fifth invention] In any one of the first to fourth inventions, the door frame is formed by continuously bending a single plate.

Since the door frame is formed by continuously bending a single plate material, there is no need to apply a sealer for waterproofing.

[0020]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a diagram illustrating a door frame according to a first embodiment of the present invention, FIG. 2 is a view taken in the direction of arrow D in FIG. 1, FIG. 3 is a cross-sectional view taken along section line EE in FIG. 1 is a sectional view taken along section line FF in FIG.

In FIG. 1, the door frame 21 extends from the first side 22 extending upward from between the door outer panel 30 and the door inner panel 31 (see FIG. 2), and from between the door outer panel 30 and the door inner panel 31. First side 22
The second side part 23 extending upward with an interval
And a top part 24 that bridges the distal ends of the first side part 22 and the second side part 23.

The cross section of the door frame 21 above the belt line 39 is formed by continuously bending a single plate material, and includes a first holding portion 26 for holding the door weather strip 25, and a door glass run. The first and second holding portions 26, 28 include a second holding portion 28, a closed cross-section portion 29 formed closer to the passenger compartment than the first and second holding portions 26, 28, and an outer surface portion 50 exposed outside the vehicle.

As shown in FIG. 2, the hatched portions of the first and second side portions 22, 23 of the door frame 21 near the upper side of the belt line 39 in FIG. A gradually changing portion 40 which is set so as to become gradually thinner upward is formed, and other than the gradually changing portion 40, that is, the gradually changing portion 4 is formed.
The upper and lower portions of 0 are constant thickness portions 41, 41 'having a constant thickness in the vehicle width direction.

Specifically, as shown in FIGS. 3 and 4,
This is done by changing the length of the closed section 29 in the vehicle width direction. 2 to 4 show the second side portion 23,
The gradually changing part 40 of the first side part 22 is also the gradually changing part 40 of the second side part 23.
Similarly to the above, the thickness of the closed section 29 in the vehicle width direction is changed.

Further, as shown in FIG. 1, the width of the outer side surface portion 50 of the first side portion 22 and the second side portion 23 is formed so as to gradually decrease from bottom to top. Further, the second side portion 23
The corner between the top and the top 24 is the inner radius of curvature r1
The outer curvature r2 (R5 in the present embodiment) is formed to be smaller than (R30 in the present embodiment).

According to the above configuration, the thickness in the vehicle width direction is gradually reduced from the bottom to the top near the upper side of the belt line 19 of the first and second side portions 22 and 23 of the door frame 21. Is provided with constant thickness portions 41 and 41 ′ in which the thickness in the vehicle width direction is constant, and as shown in FIG. 5, the front body pillar,
The depth of the step between the center body pillar 15 and the door frame 21 is constant, and the design can be enhanced. Also, by making the size of the constant thickness portion 41, the gradually changing portion 40, and the constant thickness portion 41 'of the door frame 21 coincide with the center body pillar 15, the front body pillar, and the like, the step itself can be eliminated. Becomes

The stiffness of the door frame 21 can be improved by forming the gradually changing portion 40 on the first and second side portions 22 and 23. Furthermore, by forming the width of the outer side surface portion 50 of the first side portion 22 and the second side portion 23 to be gradually narrowed from the bottom to the top, designability can be enhanced.

Further, the corner portion between the second side portion 23 and the top portion 24 is formed so that the outer radius of curvature r2 is smaller than the inner radius of curvature r1, thereby improving the design. Can be enhanced.

Further, since the door frame 21 is formed by continuously bending a single plate, a sealer used for waterproofing and dustproofing is not required, and cost can be reduced.

The present invention is not limited to the above embodiment. In the above embodiment, since the step between the center body pillar 15 and the door frame 21 occurs above the belt line 39, the gradually changing portion 40 is
Although it is provided near the upper part 9, it is possible to eliminate the step and enhance the design by forming the gradually changing portion in accordance with the place where the step occurs.

Furthermore, in the above embodiment, the front door has been described as an example, but it goes without saying that the present invention can be applied to a rear door. In this case, a gradual change portion may be provided partially so that a step does not occur between the center body pillar and the rear quarter panel.

[0032]

As described above, according to the door frame of the present invention, the following effects can be obtained.

[First Invention] A step in the vehicle width direction between the door frame and the vehicle body side is provided by providing a gradually changing portion in a part so as to eliminate a step in the vehicle width direction generated between the door frame and the vehicle body side. Can be prevented.

[Second invention] The length of the closed cross-section in the vehicle width direction is partially changed so as to eliminate a step in the vehicle width direction generated between the door frame and the vehicle body, whereby the door frame and the vehicle body side are changed. And a step in the vehicle width direction can be prevented from occurring.

[Third invention] By gradually reducing the widths of the outer side surfaces of the first and second side parts from the bottom to the top, the design is enhanced.

[Fourth invention] The design of the corner portion between the top portion and the second side portion is enhanced by making the outside curvature smaller than the inside curvature.

[Fifth invention] Since the door frame is formed by continuously bending a single plate, it is not necessary to apply a sealer for waterproofing.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a door frame according to a first embodiment of the present invention.

FIG. 2 is a view in the direction of arrow D in FIG. 1;

FIG. 3 is a sectional view taken along section line EE in FIG. 1;

FIG. 4 is a sectional view taken along section line FF in FIG. 1;

FIG. 5 is a diagram illustrating a relationship between a door and a center body pillar according to the embodiment.

FIG. 6 is a view for explaining an appearance of a door frame described in Japanese Patent Application Laid-Open No. 7-329572.

FIG. 7 is a view in the direction of arrow A in FIG. 6;

FIG. 8 is a sectional view taken along a cutting line BB in FIG. 6;

FIG. 9 is a cross-sectional view taken along section line CC in FIG. 6;

FIG. 10 is a diagram showing a side member of a four-door sedan.

FIG. 11 is a diagram illustrating a relationship between a door and a center body pillar.

[Explanation of symbols]

 Reference Signs List 21 door frame 22 first side 23 second side 24 top part 40 gradually changing part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hisashi Inukai 2 Kirihara-cho, Fujisawa-shi, Kanagawa Prefecture Shiroki Kogyo Co., Ltd.

Claims (5)

[Claims] A first side portion extending upward from between the door outer panel and the door inner panel; and a first side portion extending upward from the portion between the door outer panel and the door inner panel with an interval from the first side portion. In a door frame comprising a second side portion to be formed, and a top portion bridging the tip portions of the first side portion and the second side portion, the thickness in the vehicle width direction gradually increases on the first and second side portions. A door frame, wherein a gradually changing portion that changes is provided in a part. 2. A sectional shape of a first holding portion for holding a door weather strip, a second holding portion for holding a door glass run, and a vehicle compartment side with respect to the first and second holding portions. 2. The door according to claim 1, further comprising: a closed cross-section portion, and an outer surface portion exposed outside the vehicle, wherein the gradually changing portion changes a length of the closed cross-section portion in a vehicle width direction. 3. flame. 3. The door frame according to claim 1, wherein the width of the outer surface of the first and second side portions is gradually reduced from bottom to top. 4. The corner portion between the top portion and the second side portion is formed such that an outer curvature is smaller than an inner curvature. Door frame as described. 5. The door frame according to claim 1, wherein one of the plate members is continuously bent.