JPH0434117Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a door opening structure with a step panel for a vehicle, which is suitable for use as an opening structure for a rear side door of a one-box car, for example.

[Conventional technology]

Conventionally, a one-box car having a body structure as shown in FIG. 3 has been proposed. In such a one-box car, an opening 2 for a rear side door having a step panel 1 is formed at the lower edge.

As shown in FIG. 4, this opening 2 is
The sliding door 3 is opened and closed by a sliding door 3, and the sliding door 3 has arms 6 with wheels 4 and 5 protruding from the top and bottom of the inner wall of its front edge. It is engaged with the rail 7. As shown in FIG. 5, the guide rail 7 is formed so as to be gently curved outward toward the rear.

A rail support 8 that supports the guide rail 7 and also has a guide surface for the wheels 5 is attached to the back surface of the step panel 1 so as to open outward.

Furthermore, at the outer end of the lower surface of the rail support 8,
The upper ends of the side sill outer 9 and the side sill inner 10 are joined by spot welding.
In order to perform this spot welding connection, a groove 11 with a drain hole 11a is formed in the outer end of the lower surface of the rail support 8 in the longitudinal direction of the wheel.

Further, the side sill outer 9 is disposed so as to bulge outward, and the lower end of the side sill outer 9 and the lower end of the side sill inner 10 are joined together by spot welding together with the lower end of another side sill inner 12 that covers the rail support 8 from the back. is combined with Note that an appropriate number of drain holes 12a are also formed at the lower end joint portion of the groove 11.

The side sill inner 12 is connected at its middle portion to the step panel 1 and further connected at its upper end to the outer end portion of the vehicle body floor 13 .

Further, a band-shaped weather strip 14 is attached to the joint portion of the rail support 8, side sill outer 9, and side sill inner 10, and the band-shaped weather strip 14a of the weather strip 14 comes into contact with the inner surface of the sliding door 3 when the sliding door 3 is closed. We are starting to come into contact with each other.

With this configuration, when the sliding door 3 is placed in the position shown by the solid line in FIGS. 4 and 5, the opening 2 can be closed by the sliding door 3, and the door 3 can be slid in the direction of the arrow e. As the wheels 4 are guided by the guide rails 7 and pushed outward, the sliding door 3 is also pushed outward as shown by the chain lines in FIGS.

Thereby, the sliding door 3 can be opened without interference between the edge of the opening 2 and the sliding door 3. In addition, when closing the sliding door 3, the operation opposite to the above is performed.

[Problem that the invention attempts to solve]

However, in such a conventional door opening structure with a step panel of a vehicle body, external noise is transmitted through the drain holes 12a and 1 as shown by the chain arrow d in FIG.
There is a risk that it may enter the vehicle interior through 1a.

The present invention aims to solve these problems by changing the mounting structure of the weather strip to improve drainage and rust prevention, as well as eliminating the drain holes in the rail support. To provide a door opening structure with a step panel for a vehicle capable of preventing intrusion of sounds from outside the vehicle.

[Means for solving problems]

Therefore, the vehicle door opening structure with a step panel of the present invention has a step panel on the lower edge and is opened and closed by a sliding door. A rail support that supports the rail is installed so as to open outward, and is provided with a side sill inner that covers the rail support from the back side, and the rail support has a side sill inner that covers the rail support from the back side.
An extension is formed extending downward from the outer end of the lower surface, and the lower end of the extension is connected to the outer end of the side sill inner, and a side sill outer is attached to the outer surface of the extension. The present invention is characterized in that a weather aperture is attached to the upper end of the side sill outer, which is formed with a drainage surface that is substantially on the same level as the lower surface of the rail support, and which can come into contact with the inner surface of the sliding door.

[Effect]

In the above-mentioned door opening structure with a step panel for a vehicle according to the present invention, when the door is opened, water in the rail support is discharged through the weather strip having a drainage surface substantially at the same level as the lower surface of the rail support. Also, since there are no drainage holes in the rail support, no sound from outside will enter.

〔Example〕

Below, a door opening structure with a step panel for a vehicle as an embodiment of the present invention will be explained with reference to the drawings. FIG. 1 is a sectional view showing the vicinity of the step panel installation part, and FIG. It is a sectional view showing the arrangement state, and in FIGS. 1 and 2, the same reference numerals as in FIGS. 3 to 5 indicate substantially the same parts.

Now, consider a one-box car that has a step panel 1 on its lower edge and an opening 2 for a rear side door.

As shown in Fig. 1, this opening 2 is designed to be opened and closed by a sliding door 3' with a longer hem than the conventional one. An arm 6 with a wheel 4, 5 in each case projects, the wheel 4 in particular engaging a guide rail 7. And the guide rail 7 is
As in the conventional case, it is formed so as to be gently curved outward toward the rear (see Fig. 5).

A rail support 8 that supports the guide rail 7 and also has a guide surface for the wheels 5 is attached to the back surface of the step panel 1 so as to open outward.

Furthermore, the rail support 8 is formed with an extension 8a extending downward from the outer end of its lower surface, and the lower end of this extension 8a is connected to the outer end of the side sill inner panel 12 by spot welding.

Moreover, the side sill outer 14 is attached to the outer surface of this extension part 8a so as to follow this. Note that this attachment is performed by spot welding at points a and b.

Further, a band-shaped weather strip 15 is attached to the upper end of the side sill outer 14.

The weather strip 15 has two strip-like strip parts 1.
5a, 15b, and an outer lip portion 15.
a comes into contact with the inner surface of the sliding door 3' when the sliding door 3' is closed, and the inner lip part 15b is in contact with the stepped part (recessed part) 8b formed near the boundary between the lower surface of the rail support 8 and the extension part 8a. are in contact.

Then, with the lip portion 15b in contact with each other in this manner, the lip portion 15b and the rail support 8
almost flush with the bottom surface of. That is, the weather strip 15 is formed with a drainage surface 15c that is approximately at the same level as the lower surface of the rail support 8. In addition, since the lip portion 15a is located at the same level or slightly lower than the lip portion 15b, the water in the rail support 8 can be drained as shown by the arrow in FIG. As shown in c, the water passes over the weather strip 15 and is discharged to the outside.

With the above configuration, the sliding door 3' is
If it is in the position shown by the solid line in Figure 5, the opening 2 can be closed with the sliding door 3'.
When the door 3' is slid in the direction of arrow e, the wheels 4 are guided by the guide rail 7 and are pushed outward, so that the sliding door 3' is also pushed outward as shown by the chain lines in Figures 1 and 5. It can be done.

This allows the sliding door 3' to be opened without interference between the edge of the opening 2 and the sliding door 3'.

In this way, when you open the sliding door 3',
If water accumulates inside the rail support 8, the water passes over the weather strip 15 and is discharged to the outside as shown by arrow c in FIG.

In addition, when closing the sliding door 3', the operation opposite to the above is performed.

Then, when the sliding door 3' is placed in the position shown by the solid line in FIGS. 1 and 5 and the sliding door 3' is closed,
The lip portion 15a of the weather strip 15 comes into contact with the inner surface of the sliding door 3'. This provides a waterproof effect.

In addition, the lip portion 15b of the weather strip 15
is in contact with the stepped portion 8b, so the sound that enters through the gap between the side sill outer 14 and the extension portion 8a of the rail support 8 is blocked by the lip portion 15b of the weather strip 15. Coupled with the fact that the support 8 does not have a drain hole, it is possible to sufficiently prevent sounds from outside the vehicle from entering the vehicle interior.

In addition, as shown in FIG.
A band-shaped weather strip 16 with a and 16b
Alternatively, tunnel portions 16c having drainage surfaces substantially on the same level as the lower surface of the rail support 8 may be formed at required intervals.

Here, the lip portion 16a is a lip portion that mainly performs waterproofing by contacting the inner surface of the sliding door 3', and the lip portion 16b is a lip portion primarily performing soundproofing by contacting the stepped portion 8b of the rail support 8. be.

It goes without saying that this structure can also be applied to door opening structures with step panels for other vehicles such as railway vehicles.

[Effect of idea]

As described in detail above, according to the door opening structure with a step panel for a vehicle of the present invention, in the door opening structure for a vehicle that has a step panel on the lower edge and is opened and closed by a sliding door, the back side of the step panel A rail support that supports the rail for guiding the sliding door is installed so as to open outward, and a side sill inner that covers the rail support from the back side is provided, and a side sill inner is provided to cover the rail support from the outer end of the lower surface of the rail support. An extension part extending downward is formed, the lower end of the extension part is connected to the outer end of the side sill inner, and a side sill outer is attached to the outer surface of the extension part, and the upper end of the side sill outer is provided with: With a simple structure in which a drainage surface is formed at approximately the same level as the lower surface of the rail support and a weather strip that can come into contact with the inner surface of the sliding door is attached, there is an advantage that both drainage performance and soundproofing performance can be improved.

[Brief explanation of the drawing]

Figures 1 and 2 show a door opening structure with a step panel for a vehicle as an embodiment of the present invention.
Figure 1 is a cross-sectional view showing the vicinity of the step panel installation part, Figure 2 is a cross-sectional view showing the arrangement of weather strips of other shapes, and Figure 3 is a schematic diagram showing the body structure of a one-box car. 4 and 5 are perspective views, and FIGS. 4 and 5 show a conventional door opening structure with a step panel for a vehicle. FIG. 4 is a cross-sectional view showing the vicinity of the step panel installation part, and FIG. FIG. 3 is a schematic diagram for explaining the arrangement state. 1... Step panel, 2... Rear side door opening, 3'... Sliding door, 4, 5... Wheels,
6... Arm, 7... Guide rail, 8... Rail support, 8a... Extension part, 8b... Step part, 12
...Side sill inner, 12a...Drain hole, 1
3...Vehicle floor, 14...Side sill outer,
15... Weather strip, 15a, 15b...
Lip part, 15c...Drainage surface, 16...Weather strip, 16a, 16b...Rip part, 16c
...Tunnel section.

Claims (1)

[Scope of utility model registration request] In a door opening structure for a vehicle that has a step panel on the lower edge and is opened and closed by a sliding door, a rail support that supports a rail for guiding the sliding door is attached to the back side of the step panel so as to open outward. The rail support is also provided with a side sill inner that covers the rail support from its back side, and the rail support has an extension extending downward from the outer end of the lower surface of the rail support, and the extension has a lower end that extends downward from the outer end of the side sill inner. At the same time, a side sill outer is attached to the outer surface of the extension part, and a drainage surface is formed at the upper end of the side sill outer at approximately the same level as the lower surface of the rail support, and the side sill outer is in contact with the inner surface of the sliding door. A door opening structure with a step panel for a vehicle, characterized by the installation of a wet weather door and a lip.