JPH04113949A - Seal construction for vehicle door lower end edge - Google Patents

Abstract

PURPOSE:To prevent slit-out of an edge protector by providing the contact piece of an edge protector between a locker panel and the upper edge of a locker protector, and engaging the hook part of the upper edge end part of the locker protector with the groove part of the locking piece of the edge protector. CONSTITUTION:In a locker protector fitting construction constituted by providing locker protectors (side skirts) 3 along locker panels 1 on both sides of a vehicle body, the locker protector 3 is fitted on the side of the locker panel, and an edge protector 6 of elastic material is put over the upper edge 31 of the locker protector 3. In this case, a hook part 32 is formed on the upper edge 31 of the protector, meanwhile the edge protector 6 is formed by respectively providing a lip-like seal part 60 bent so as to contact with the lower end edge 20 of a door on the upper part, a contact piece 61 contactedly supporting the upper edge part 31 of the locker protector on the back of the lower part, and a locking piece 62 provided with a locking groove G of the inside on the forward face of the lower part. This protector 6 is formed by two layers extrusion, only the seal part 60 is out of sponge rubber and the other part is out of solid rubber.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sealing structure for the lower edge of a vehicle door, and is effectively utilized in a vehicle in which side skirts are attached to rocker panels on both sides of the vehicle body. It is something.

[Conventional technology]

Recently, rocker protectors (side skirts) have been added to the rocker panels on both sides of the car body in order to improve the aerodynamic characteristics of cars.

That is, FIG. 5A is a cross section taken along line AA in FIG. 4, and the conventional rocker protector mounting structure is as shown in FIG. 5A.
By attaching the rocker protector 3 to the side surface of the rocker panel using the port T and the clip C, and capping the upper edge 31 of the rocker protector 3 with the edge protector 4 made of an elastic material, the abutting piece 61 of the protector 4 is interposed. The aim is to improve the adhesion between the rocker protector and rocker panel. Further, a weather strip 5 is attached to the lower surface 21 of the door to seal the lower surface of the door and the corner edge E of the rocker panel. However, in the conventional door bottom seal structure shown in FIG. 5A, the door bottom edge 2
0 and the door-facing surface 10 of the rocker panel 1. This gap S causes wind noise during driving, and since the lower end of the door is single-sealed with only the weather strip 5, there is a gap S. Sounds from outside the vehicle entered from the S, and a single seal was not able to sufficiently prevent the wind noise and sounds from outside the vehicle.

Improvement of such defects was proposed in Utility Application No. 150065/1983 (
It was proposed as Utility Model Application No. 61-64089).

That is, FIG. 5B is an explanatory diagram of the improved invention, and as shown in the figure, the fitting groove G of the edge protector 6 is provided with a seal portion 60 at the upper part and an abutment piece 61 at the lower part.

It has been proposed that the upper edge 31 of the rocker protector be inserted and held therein to seal between the lower edge 20 of the door and the door facing surface 10 of the rocker panel 1, that is, to double seal the lower edge of the door.

[Problem to be solved by the invention 2] In the improved conventional example shown in FIG. 5B, when the door is closed, the gap S between the lower edge 20 of the door and the door facing surface 10 of the rocker panel is closed by the sealing part 60 of the edge protector 6. After all, the seal part 60 constituted a second seal in contrast to the first seal by the door weather strip 5, and the noise sealing inside the car was successfully achieved. A large door closing stress F acts at the points Xl and X2 shown in FIG. 4, and the pull-out force of the arrow F1 shown in FIG. A part of the edge protector 6 extending in the longitudinal direction of the vehicle body along the upper edge 31 (
Particularly, parts XI and X2) may be pulled out or slipped, and
Figure x1. As a result of repeated experiments, it was discovered that in the X2 section, the door sealing performance of the edge protector and the protection function of the upper edge of the locker protector were reduced.

The present invention solves the above-mentioned problems in the improved example shown in FIG. 5B.

[Means and operations for solving the problem] For example, as shown in FIG.
1 and a fastening piece 62 of the edge protector 6 is interposed between the rocker panel 1 and the upper edge 31 of the rocker protector. The hook portion 32 is engaged to irremovably fix the edge protector 6 to the rocker protector.

Therefore, even if the pull-out force F1 generated by the door closing stress F when the door is strongly closed acts on the edge protector,
A hook portion 32 at the upper edge of the rocker protector prevents the edge protector 6 from being removed.

The abutting piece 61 ensures elastic adhesion of the rocker protector to the rocker panel 1, and when the door is closed, the sealing part 60 is placed between the lower end of the door and the rocker panel.
Always forms a seal.

〔Example〕

Example 1 (Fig. 1): As shown in Fig. 1, the door 2, rocker panel l, and rocker protector 3 are essentially the same as the conventional example (Figs. 5A and 5B), and only the upper edge 31 of the rocker protector is It has a new structure. That is, a hook portion 32 is formed at the tip of the upper edge 31 of the protector.

In addition, the edge protector 6 has a lip-shaped seal portion 60 bent outward at the top as shown in the figure, that is, bent so as to come into contact with the lower edge 20 of the door, and supports the upper edge of the rocker protector in contact with the lower back surface. The abutment piece 61 has a cross-sectional shape having a fastening piece 62 with a fastening groove G on the inside at the lower front surface, and is extruded in two layers, with only the sealing part 60 made of sponge rubber and the rest made of solid rubber.

The edge protector 6 is assembled to the rocker protector 3 by press-fitting the hook portion 32 of the upper edge 31 of the rocker protector into the locking groove G of the edge protector 6, and then assembling the rocker as in the conventional method (FIG. 5A). The protector 3 was fixed to the rocker panel 1 with bolts T and clips C.

In the obtained seal structure for the lower edge of the door (Fig. 1), even when the door is strongly closed, even at the point where the door closing stress F is the largest (X3 and X2 portions in Fig. 4), The hook portion 32 of the locker protector reliably held the edge protector 6 against the pull-out force indicated by the arrow F1 caused by the door closing stress F. In addition, when the door is closed, the sponge seal portion 60 elastically contacts and seals the inside of the lower edge 20 of the door, and in combination with the sealing with the rocker panel corner edge E of the door weather strip 5, the lower part of the door opening is stably double-sealed. did. The contact piece 61 is the rocker protector 3
Close contact with the rocker panel 1 was ensured.

Example 2 (Fig. 2): As shown in Fig. 2, the edge protector 6 made entirely of sponge rubber and the rocker protector 3 were fixed with clips. That is, a fastening hole h6 is formed in the inner cavity H of the fastening piece 62, a corresponding fastening hole h3 is also formed in the upper edge 31 of the rocker protector, and after fixing both with the clip 7, the same process as in Example 1 is carried out. Rocker protector 3 was installed on the rocker panel. The obtained seal structure exhibited the same effects as in Example 1, and achieved the intended purpose of the present invention.

Example 3 (FIG. 3): As shown in FIG. 3, the rocker panel 1, door 2, and locker protector 3 were the same as the conventional example (FIGS. 5A and 5B), and only the edge protector 6 had a new structure.

That is, the seal part 60 has a hollow shape, only the front half thereof is made of sponge rubber, and the entire other edge protector is made of solid rubber, and the shape is a fitting groove G formed by an abutting piece 61 and a fastening piece 62. , and the vertical wall 1 of the rocker panel 1
A wall surface 65 in surface contact with the rocker panel 1 and an inclined surface 64 in surface contact with the door facing surface 11 of the rocker panel were extruded in two layers to have a continuous cross-sectional shape on the back surface of the edge protector.

Next, the fitting groove G of the edge protector 6.

After inserting and holding the upper edge 31 of the rocker protector, place the wall 65 against the vertical wall 11, the inclined surface 64 against the door facing surface 10, and place the edge protector 6 in close contact with the rocker panel surface. ) T and clip C to fix the rocker protector 3 to the rocker panel 1 in the same manner as in the conventional example (FIG. 5A).

In the obtained seal structure, the pull-out force F generated by the door closing stress F when the door is strongly closed is completely absorbed by the surface contact (frictional resistance) of the vertical wall 11 with the wall surface 65, and eventually The same effects as Example 1 were obtained, and the intended purpose of the present invention was achieved.

〔Effect of the invention〕

Since the edge protector is irremovably attached to the upper edge of the rocker protector, the edge protector will not come out even when the door is strongly closed, so the edge protector always performs a uniform door sealing function. The abutment piece 61 of the edge protector always elastically held the upper line 31 of the rocker protector 3 in close contact with the rocker panel 1, thereby maintaining the desired edge protector function.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a first embodiment of the invention, FIG. 2 is a sectional view of a second embodiment of the invention, and FIG. 3 is a sectional view of a third embodiment of the invention. It is. FIG. 4 is a schematic side view of an automobile showing the parts to which the present invention is applied. FIG. 5A is a sectional view taken along the line A-A in FIG. 4 of the conventional example;
Figure B is a sectional view of an improved conventional example. 1...Rocker panel, 10 door facing surface, 11...
Vertical wall, 2... Door, 20... Lower edge of door, 21... Lower surface of door, 3... Rocker protector, 31... Upper edge of rocker protector, 4.6... Edge protector 5 ...Door weather strip, 60...Seal portion, 61...Abutting piece, 62...
・Fixing piece. 1st 1...Rocker panel 2...Door 3...Rocker protector 4.6...Edge protector 5...Door weather strip 10...Door opposing surface 11...Vertical wall view 20...Door lower edge 21...Door lower surface 31...Rocker protector upper edge 60...Seal portion 61...Abutting piece 62...Fixing piece

Claims (1)

[Scope of Claims] 1. A seal portion (
60), and the abutting piece (61) of the edge protector (6) made of an elastic material, which has an abutting piece (61) and a fastening piece (62) at the bottom, on the rocker panel (1) and the rocker protector. interposed between the edge (31) and the fastening piece (6
2) is fixed to the upper edge (31) of the locker protector in a sealing structure for the lower edge of the vehicle door. 2. At the top, there is a seal part (
60) is placed on the back side of an edge protector (6) made of an elastic material that has an abutting piece (61) and a fastening piece (62) at the lower part, and a wall surface (60) that is in surface contact with the rocker panel vertical wall (11). 65), and the abutting piece (61) of the edge protector (6) is interposed between the rocker panel (1) and the upper edge of the rocker protector (31), and fixed to the abutting piece (61). piece (62) and the rocker protector upper edge (3
1), and also prevents the edge protector (6) from coming off due to the door closing stress (F) by the wall surface (65) on the back side of the protector.