Land vehicles: bodies and tops – Tops – Roof structure
Reexamination Certificate
2000-07-07
2001-09-04
Pedder, Dennis H. (Department: 3612)
Land vehicles: bodies and tops
Tops
Roof structure
C296S203040, C296S029000
Reexamination Certificate
active
06283541
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an automobile, and more particularly to a rear roof rail reinforcement structure for automobile having a tailgate for reinforcing a rear roof rail.
2. Description of the Prior Art
A rear roof rail reinforcement structure for automobile according to the prior art is constructed such that a rear end of a rear roof lower rail
10
at a corner
1
connected to a tailgate (not shown) and an upper tip end of an inner side panel
20
are correspondingly overlapped and spot-welded, while, at outer sides of the rear roof lower rail
10
and the inner side panel
20
, a tip end of a rear roof upper rail
30
and a tip end of outer side panel
40
are correspondingly overlapped, and, at an outer side of the rear roof upper rail
30
, a tip end of roof panel
50
is overlapped and spot-welded to an overlapped portion between the rear roof upper rail
30
and the outer side panel
40
, as illustrated in
FIGS. 1 and 2
.
At this time, a through hole
21
is formed at one side of the inner side panel
20
for an inner welding gun
70
to be inserted from an inner side of the inner side panel
20
toward an overlapped part where a tip end of the outer side panel
40
, tip ends of rear roof upper rail
30
and roof panel
50
are upper rail
30
toward an overlapped part where tip ends of the rear roof lower rail
10
and inner side panel
20
are correspondingly meet.
Unexplained reference numeral
60
in the drawings is a pillar panel connected by rear roof lower rail
10
and inner side panel
20
.
However, there is a problem in the conventional rear roof rail reinforcement structure for automobile thus constructed in that a passage (a) is opened between the inner side panel
20
and the outer side panel
40
at the corner
1
of tailgate, as illustrated in
FIG. 2
, such that, by way of example, when one wheel of an automobile is parked on a block of a footpath, the tailgate is twisted not to be opened or closed because opening of the tailgate receives torsional stress, and vibration generated when an automobile is running cannot be blocked at the passage (a) to be transmitted to the pillar panel
60
, thereby causing a noisy sound resounding phenomenon.
SUMMARY OF THE INVENTION
The present invention is disclosed to solve the aforementioned problems and it is an object of the present invention to provide a rear roof rail reinforcement structure for automobile constructed and adapted to reinforce a corner for an opening of tailgate not to receive torsional stress during parking as above, and to facilitate opening and closing of the tailgate. It is another object of the present invention to isolate the vibration generated while an automobile is running at a passage of a corner side, thereby preventing in advance a noisy sound resounding phenomenon from being transmitted to a pillar panel.
In accordance with the objects of the present invention, there is provided a rear roof rail reinforcement structure for automobile, the rear roof rail for automobile where an inner side panel and an outer side panel are detachably formed at a predetermined space therebetween, a rear roof lower rail is overlapped by and welded to the inner side panel and the outer side panel is overlapped by and welded to a rear roof upper rail and a roof panel, wherein the rear roof lower rail is bent at a tip end thereof and welded to connect the inner side panel and the outer side panel respectively, and comprises a reinforcement for blocking a passage formed between the inner side panel and the outer side panel.
REFERENCES:
patent: 3833254 (1974-09-01), Renner
patent: 5318338 (1994-06-01), Ikeda
patent: 6126232 (2000-10-01), Nakano
Christie Parker & Hale LLP
Hyundai Motor Company
Pedder Dennis H.
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