JP3258861B2 - Car back door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention comprises a door opening formed in a rear wall of a vehicle body, and a door for opening and closing the door opening.
The present invention relates to a back door of an automobile in which the door is pivotally supported by an opening edge of the door opening sideways.

[0002]

2. Description of the Related Art A conventional back door of an automobile is disclosed in Japanese Utility Model Laid-Open Publication No. 1-165714, particularly as shown in FIGS. 1 and 2. FIG.

According to this, a door opening is formed in a middle portion of a rear wall of a vehicle body in a vehicle width direction, and a door is provided to close and open the door opening.
An opening edge on one side of the door opening extends from an edge of an outer panel forming an outer surface of one side of the rear wall so as to bend forward, and a first opening edge piece; And a second opening edge extending from the front edge of the edge toward the center of the vehicle body in the vehicle width direction.

[0004] One side of the door is pivotally supported on the opening edge by a hinge whose axis is substantially vertical. When viewed from above, the axis of the hinge is aligned with one side of the door and the opening edge. It is located in the space surrounded by. The door opening is opened by rotating the other side of the door rearward about the axis. At this time, the edge of one side of the door is opened by the opening rotation of the door. Is to enter the space.

[0005] The first opening edge piece extends substantially linearly toward the front. In order to prevent the edge of one side of the door from coming into contact with the first opening edge piece when the door is turned, the first opening edge piece is moved from the turning locus of the edge of the door in the vehicle width direction. Are pulled apart toward the outside.

[0006]

By the way, in the above prior art, the axis of the hinge, which is the center of rotation of the door, is located in the above-mentioned space, that is, the first axis in the front-back direction.
It is located in the middle of the opening edge piece.

For this reason, the turning locus of the edge of the door is
The middle portion of the first opening edge piece is closer to the middle portion in the vehicle width direction, while the rear end portion of the first opening edge piece is largely separated in the vehicle width direction.

Therefore, as shown particularly in FIG. 2 of the above publication, when the door is closed and the edge of the door faces the rear end of the first opening edge piece in the vehicle width direction. ,
There is a large gap between these two, and through this gap,
The hinge may be easily seen from the outside of the vehicle, and in this case, the appearance of the back door of the vehicle is undesirably reduced.

On the other hand, the space also functions as a drainage passage through which rainwater flows down from the roof side of the vehicle body.
Rainwater passing through the space may freeze and become ice, which may grow. In this case, when the door is turned, its edge contacts the ice that has grown as described above, and the door smoothly moves. There is a problem that rotation is hindered.

[0010]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the appearance of a back door by preventing the door hinge from being easily seen from outside the vehicle. .

It is another object of the present invention to make it possible to smoothly rotate the door even if ice caused by freezing of rainwater is generated in a space between the opening edge of the door opening and one side of the door. .

[0012]

According to the first aspect of the present invention, there is provided a back door of an automobile, wherein a door opening is formed in a middle portion of a rear wall of a vehicle body in a vehicle width direction. A door 5 is provided for closing the door opening 4 so that it can be opened and closed,
A first opening edge piece 16 extending so as to bend forward from an edge 15 of an outer panel 12 forming an outer surface of one side of the rear wall 3 with an opening edge 14 on one side of the door opening 4. And a second opening edge piece 17 extending from the front edge of the first opening edge piece 16 toward the center of the vehicle body 1 in the vehicle width direction. Is pivotally supported on the opening edge 14 by a substantially vertical hinge 24, and the axis 23 of the hinge 24 is positioned in a space 31 surrounded by one side of the door 5 and the opening edge 14 in plan view, Above axis 2
By turning the other side of the door 5 rearward about three turns, the door opening 4 is opened. When the door 5 is opened, the edge 32 of one side of the door 5 enters the space 31. in case of such entering, in plan view, the edges of the upper Kido a 5 32
3 covering the rotation trajectory 35 from the opening edge 14 side
9 is provided in the space 31, and a space 42 vertically communicating between the opening edge 14 and the cover body 39 is provided.

[0013] The invention of claim 2 is in addition to the invention of claim 1.
In the front-rear direction of the first opening edge piece 16 in plan view.
Part 16a is higher than the rear end part 16c of the first opening edge piece 16 of the above.
It is recessed outward in the vehicle width direction.

[0014]

The operation of the present invention is as follows.

According to the first aspect of the present invention, the edge 3 of the door 5 is provided.
Cover body 39 covering the second rotation locus 35 from the opening edge 14 side
Is provided in the space 31.

For this reason, the door 5 closes the door opening 4 and the edge 32 of the door 5 is connected to the rear end 1 of the first opening edge piece 16.
6c in the vehicle width direction.
Even if the gap 36 between the holes c is wide to some extent, the cover member 39 prevents the hinge 24 and the like provided in the space 31 from being easily seen from outside the vehicle through the gap 36.

Moreover, the opening edge 14 and the cover body 3
9, a space 42 communicating vertically is provided.

For this reason, when water 43 such as rainwater flows down through the space 42, the water 43 freezes and becomes ice, and even if it grows, the growth is further increased by the cover body 39 to the door 5. Trajectory 3 of the edge 32 of
The movement toward the fifth side is suppressed.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes an automobile body, which is indicated by an arrow Fr.
Indicates the front of the vehicle, and the left and right described below refer to the vehicle width direction toward the front.

The interior of the vehicle body 1 is a cabin 2,
The vehicle body 1 includes a rear wall 3 at a rear end thereof, and a back door is provided on the rear wall 3.

The back door has a rectangular door opening 4 formed at an intermediate portion of the rear wall 3 in the vehicle width direction, and a door 5 for closing the door opening 4 so that it can be opened and closed.

The rear wall 3 is made of sheet metal, and the left and right sides thereof are provided with an inner panel 7 and an outer panel 8 facing each other in plan view shown in FIGS. 1 and 3, and these inner panel 7 and outer panel 8 are provided. Are connected to each other by an extension panel 9.

The door 5 has an inner panel 11 and an outer panel 12 facing each other in the front-rear direction. The outer edges of the inner panel 11 and the outer panel 12 are connected to each other, whereby the inner panel 11 and the outer panel 12 are joined. Are connected in the middle.

An opening edge 14 on the right side which is one side of the door opening 4 is bent forward from an edge 15 of the outer panel 8 which forms an outer surface of the right side which is one side of the rear wall 3. The first opening edge piece 16 extending like
The second opening edge piece 17 extends from the front edge of the opening edge piece 16 toward the center (left side) of the vehicle body 1 in the vehicle width direction.

The extension panel 9 constitutes a rear part of the extension panel 9 in a plan view and extends in the front-rear direction, and a center side (left side) of the vehicle body 1 in a vehicle width direction from a front edge of the rear panel 19. ) And a front panel 20 extending toward the front panel 20).

The first opening edge piece 16 includes an extension piece 22 integrally extending so as to be bent forward from an edge 15 of the outer panel 8 of the rear wall 3, and a spot on the extension piece 22. The second opening edge piece 17 is constituted by the front panel 20 and the rear panel 19 joined by welding.

The right side, which is one side of the door 5, is pivotally supported on the opening edge 14 by a pair of upper and lower hinges 24, 24 having an axis 23 substantially vertical. Each hinge 24
Is a fixing piece 26 fixed to one side of the door 5 by a fastener 25 and a fastener 2 on the surface of the front panel 20.
7 and the fasteners 27
And a pivot shaft 29 that pivotally supports the rotating piece 28 on the axis 23.

In plan view, the rear edge of the inner panel 7 and the edge in the vehicle width direction of the extension panel 9 are joined by spot welding, and the weather strip 30 is attached to this joint. . When the door 5 closes the door opening 4, the inner surface of the door 5 comes into pressure contact with the weather strip 30, thereby sealing the inside and outside of the vehicle compartment 2. The pivot shaft 2 is placed in a space 31 surrounded by one side of the door 5, the first and second opening edge pieces 16 and 17, and the weather strip 30.
Nine axes 23 are located.

As shown by the solid line in each figure, when the door 5 is closed with the door opening 4, the rear surface (front surface) of the outer panel 8 on one side of the rear wall 3 and the rear surface (front surface) of the door 5 Are almost flush with each other.

Then, when the other side (left side) of the door 5 is rotated rearward around the axis 23 of the pivot shaft 29 (FIG. 1,
The arrow A in FIG. 3 (illustrated by a virtual line), and the door opening 4 is opened. When the door 5 is opened, the edge 32 on one side of the door 5 enters the space 31 in plan view.

In a plan view, the middle portion 16a of the first opening edge piece 16 in the front-rear direction is located outward of the front and rear end portions 16b, 16c of the first opening edge piece 16 in the vehicle width direction. It is recessed.

In the above case, the extension piece 22 and the outer panel 8
Is press-formed by so-called negative angle forming,
Thereby, the middle portion 16a of the first opening edge piece 16 is recessed from the front and rear ends 16b, 16c.

For this reason, the first opening edge piece 16 is moved along the rotation path 35 while keeping the middle part 16 a of the first opening edge piece 16 from contacting the rotation path 35 of the edge 32 of the door 5. Overall.

Thus, the door 5 is closed by the door opening 4,
When the edge 32 of the door 5 is opposed to the rear end 16c of the first opening edge piece 16 in the vehicle width direction, these two 32, 1
The gap 36 between the gaps 6c is narrowed, thereby suppressing the hinge 24 provided in the space 31 from being easily seen from outside the vehicle through the gap 36.

In FIG. 1 and FIG. 3, a cover 39 made of sheet metal is provided in the space 31 so as to cover the rotation trajectory 35 of the edge 32 of the door 5 from the opening edge 14 side in plan view. The cover 39 is formed in an arc shape along the rotation locus 35, and the cover 39 is detachably fastened to a surface of the second opening edge piece 17 of the opening edge 14 by a fastener 40.

Between the opening edge 14 and the cover 39, there is provided a space 42 which is a drainable passage or a communication passage which communicates vertically.

For this reason, when water 43 such as rainwater flows down through the space 42, the water 43 freezes and becomes ice, and even if it grows, the growth is further increased by the cover body 39 to the door 5. Trajectory 3 of the edge 32 of
The movement toward the fifth side is suppressed.

The cover 39 is formed in an arc shape so as to follow the rotation locus 35 in a plan view, and the gap between the two 35 and 39 is reduced. The visibility of the hinge 24 is more reliably suppressed.

Further, as described above, since the cover body 39 is formed in an arc shape, the rigidity is improved, and the cover body 39 is prevented from vibrating or rattling due to vibration of an automobile or the like.

[0041]

According to the present invention, the following effects can be obtained.

[0042] According to the invention of 請 Motomeko 1, the car of the vehicle body of the rear wall
A door opening is formed in the middle part in the width direction.
Provide a door that closes the opening so that it can be opened and closed.
The opening edge of the side portion is formed with the outer surface of one side portion of the rear wall.
Extend from the edge of the panel so that it bends forward.
From the first opening edge piece that emerges and the front edge of the first opening edge piece
Second opening edge piece extending toward the center of the vehicle body in the vehicle width direction
And one side of the door has a hinge with a substantially vertical axis.
And pivoted to the opening edge by the
A space whose axis is surrounded by one side of the door and the opening edge
At the rear of the other side of the door around the axis
Rotate to open the door opening, and open this door.
As the door turns, the edge of one side of the door enters the space
In Unishi was back door of a motor vehicle, in plan view, the cover member for covering the rotation locus of the edge of the <br/> door from the opening edge side is provided in the space.

For this reason, when the door closes the door opening and the edge of the door faces the rear end of the first opening edge piece in the vehicle width direction, even if the gap between the two is wide to some extent, the door is closed. The fact that the hinges and the like provided in the space are easily seen through the gap is suppressed by the cover body, and thus the appearance of the back door is improved.

Further, a space is provided between the opening edge and the cover so as to communicate vertically.

Therefore, when water, such as rainwater, flows down through the space, the water freezes and becomes ice, and even if it grows, the growth is further increased by the cover body to turn the edge of the door. It is suppressed to go to the moving trajectory side.

Therefore, even if ice is generated in the space by freezing of water, the ice is prevented from hindering the rotation of the door, and the rotation of the door is smoothly performed.

According to the second aspect of the present invention, in plan view,
The middle part of the first opening edge piece in the front-rear direction is the same as that of the first opening edge piece.
It is recessed outward in the vehicle width direction from the rear end.

For this reason, the rotation trajectory of the edge of the door
While preventing the middle part of the first opening edge piece from contacting,
The first opening edge piece is brought closer to the rotation locus as a whole.
Can be done.

Therefore, the door closes the door opening, and
The edge of the door is opposed to the rear end of the first opening edge piece in the vehicle width direction.
When turned, the gap between them becomes narrower. This result
As a result, is the hinge provided in the space
Is easy to see and the back door
Prosperity improves.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line 1-1 of FIG. 2;

FIG. 2 is a rear view of the back door.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;

FIG. 4 is a perspective view of the rear wall as viewed from the passenger compartment side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Cabin 3 Back wall 4 Door opening 5 Door 14 Opening edge 15 Edge 16 First opening edge piece 16a Midway 16c Rear end 17 Second opening edge piece 23 Center axis 24 Hinge 29 Pivot shaft 31 Space 32 Edge 35 Rotation trajectory 36 Gap 39 Cover body 42 Space 43 Water

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60J 5/10 B62D 33/04

Claims (2)

(57) [Claims] 1. A door opening is formed in a rear wall of a vehicle body at an intermediate portion in a vehicle width direction, and a door is provided for closing the door opening so as to be openable and closable. A first opening edge piece extending so as to be bent forward from an edge of the outer panel forming an outer surface of one side of the wall;
A second opening edge piece extending from the front edge of the first opening edge piece toward the center of the vehicle body in the vehicle width direction, and one side of the door is hinged with an axis substantially vertical to the door. Pivotally supported by an opening edge, the axis of the hinge is positioned in a space surrounded by one side of the door and the opening edge in a plan view, and the rear of the other side of the door around the axis. as the door opening is opened by rotation, in the back door of a vehicle edge of one side of the door opening rotation of the door so as to enter the above space, in plan view, the upper Kido a A back door for an automobile, wherein a cover body for covering the rotation trajectory of the edge from the opening edge side is provided in the space, and a space vertically communicating between the opening edge and the cover body is provided. 2. The front-rear direction of the first opening edge piece in plan view.
In the vehicle width direction than the rear end of the first opening edge piece.
The automobile bag according to claim 1, which is recessed outward.
Kudore.