Hinge structure for back door

Details Hinge structure for back door Hinge structure for back door

2001-06-13

2002-10-08

Pezzuto, Robert E. (Department: 3671)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Including transversely moving pin in slot

Reexamination Certificate

active

06460222

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority of Korea patent Application No.
2000-73409
, filed on Dec. 5, 2000.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a hinge structure for back door, and more particularly to a hinge structure of back door constructed to reduce the sizes of parts comprising hinges of a back door for enabling to obtain an accommodation space.
2. Description of the Prior Art
In general, a van is equipped with a door for opening and closing for loading and unloading cargoes, and the door is mounted with hinges for opening and closing the door by way of turning to the left and right directions.
In other words, the door is installed with hinges
10
and
10
′ where the hinges
10
and
10
′ function as rotating axles for opening and closing the door as illustrated in FIG.
1
.
Particularly, the hinge
10
mounted at an upper part of the door
1
includes a fixation member
17
secured to an inner panel
3
of the door
1
and having a check rod
12
and a check guide
14
fixed to a recess
4
of body panel
2
, as illustrated in FIG.
2
.
The check rod
12
is coupled at one side thereof via a rotary pin
13
of the fixation member
17
for rotation while the other side thereof is mounted with a roller
11
for rotation.
The check guide
14
has a guide piece
15
at both left and right sides thereof for guiding the roller
11
of the check rod
12
while a tip end thereof is formed with a bent stopper
16
for holding the roller
11
.
Coupling holes (not shown) are respectively formed on the fixation member
17
and the check guide
14
where the fixation member
17
is coupled o an inner panel
3
of the door
1
while the check guide
14
is coupled to a recess
4
of the body
2
therethrough via a nut and a bolt.
As shown in
FIG. 4
b
, when the door
1
is to be opened, the roller
11
at the check rod
12
moves along an upper end of the guide piece
15
at the check guide
14
, and when the roller
11
is received by the stopper
16
, the door
1
is completed in opening to a 180 degree. When the door
1
is to be closed, the roller
11
is guided via the guide piece
15
to cause the door to be closed in the reverse way, as illustrated in
FIG. 4
a.
Meanwhile, the hinge
10
′ mounted underneath the door
1
includes a first hinge unit
11
′ secured to an inner panel
3
of the door
1
and a second hinge unit
12
′ fixed to the recess
4
of the body panel
2
, as illustrated in FIG.
3
.
The first hinge unit
11
′ is made to rotate by being coupled via a rotary pin
13
′ on the second hinge unit
12
′, while coupling holes are respectively formed on the first and second hinge units
11
′ and
12
′ where the first hinge unit
11
′ is coupled to the inner panel
3
of the door
1
whilst the second hinge unit
12
′ is secured to the recess
4
of the body
2
therethrough via a bolt
14
′ and a nut
15
′, such that, when the door is to be opened, the door is rotated outwardly about the rotary pin
13
′ to thereby be opened.
Furthermore, when the door is to be closed, the door performs the reverse operation about the rotary pin
13
′ to thereby be closed.
However, there is a problem in hinge structure for back door thus constructed according to the prior art in that the check rod mounted on the door for opening and closing to the left and right directions is too large in radius of gyration thereof to possess needless space toward the external side of the door while the recess of the body is formed with a space where the check rod is inserted such that, in constructing the recess, the manufacturing process becomes too much complicated to make assembling work difficult.
There is another problem in that the check guide, being burdened with the guide piece for guiding the check rod, takes up too much space to secure same to the body, thereby increasing the number of assembling processes in performing the coupling words for cooperating with check rod.
There is still another problem in that manufacturing process of parts is complicated to consume extra amount of manufacturing cost.
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 hinge structure for back door constructed to reduce the number of parts comprising a hinge of a door, manufacturing processes and manufacturing cost.
In accordance with the object of the present invention, there is provided a hinge structure for back door, the structure comprising:
a guide member secured to a first hinge unit for performing rotation when the door is opened and closed;
a first rod guided along the guide member;
a second rod extensively connected with the first rod; and
a bracket where the second rod is coupled while being secured to a second hinge unit.


REFERENCES:
patent: 1282435 (1918-10-01), Korb
patent: 2249403 (1941-07-01), Stollsteimer
patent: 2823662 (1958-02-01), Aylor
patent: 3673635 (1972-07-01), Cencioni
patent: 4068348 (1978-01-01), Chivers
patent: 4738003 (1988-04-01), Mori et al.
patent: 5035463 (1991-07-01), Kato et al.
patent: 5050270 (1991-09-01), Burgei et al.
patent: 5632065 (1997-05-01), Siladke et al.
patent: 6141832 (2000-11-01), Salice
patent: 6347818 (2002-02-01), Lyons, Sr.
patent: 2049800 (1980-05-01), None
patent: 2069037 (1981-01-01), None
patent: 2070129 (1981-01-01), None

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