Hinge structure of trunk lid for automobile

Details Hinge structure of trunk lid for automobile Hinge structure of trunk lid for automobile

2000-12-27

2003-05-27

Knight, Anthony (Department: 3676)

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

Hinge

Including means to hold or retard hinged members against...

C296S100060

Reexamination Certificate

active

06568033

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority of Korea patent Application No. 99-64682, filed on Dec. 29, 1999.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a hinge structure, and more particularly to a hinge structure of trunk lid for automobile adapted to resiliently support-an opened state of a trunk lid when the trunk lid is openably and closeably mounted.
2. Description of the Prior Art
Generally, an automobile is formed at a front or at a rear part thereof with a trunk room and the trunk. room is mounted with a trunk lid for opening and closing the trunk room.
The trunk lid is supportively hinged at one side thereof and is locked/unlocked at the other side thereof by a ratchet assembly and a striker.
At this time, as illustrated in
FIGS. 4 and 5
, the hinged assembly is constituted by a hinge bracket
51
fixed to a package tray
50
at a body, a hinge arm
52
rotably supported at one side thereof to the hinge bracket
51
and fixed at the other side thereof to a bottom side of a trunk lid (T) and a torsion bar
53
mounted between the hinge arm
52
and the hinge bracket
51
for receiving resilience to a direction to which the hinge arm
52
is opened.
Of course, the torsion bar
53
is formed at a tip end thereof with a torsion part
54
for twisting the torsion bar
53
and is supported at both ends thereof by both sides of the hinge bracket
51
while the torsion bar
53
is supported by a link
55
which is in turn rotably supported at one end thereof by the hinge arm
52
.
When the torsion part
54
is linked to the link
55
, the torsion part
54
is rotated to twist the torsion bar
53
while the trunk lid (T) is closed, and when the trunk lid (T) is opened under this situation, and trunk lid (T) receives resilience to a direction to which the trunk lid (T) is opened by the twisting resilience, thereby enabling to maintain the opened state
However, there is a problem in that the trunk lid (T) cannot keep the opened state while the torsion bar
53
is aged to weaken the resilience when the twisting resilience of torsion bar is used to maintain the opened state of the trunk lid (T), such that the trunk lid (T) tends to close to thereby hurt a user when he or she puts luggage into a trunk room.
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 of trunk lid for automobile adapted to prevent a user from being hurt by a closing trunk lid when the trunk lid is closed by weakened resilience when a torsion bar is aged.
In accordance with the object of the present invention, there is provided a hinge structure of trunk lid for automobile, the structure including a hinge bracket fixed to a package tray at a body, a hinge arm rotably supported at one side thereof to the hinge bracket and fixed at the other side thereof to a bottom side of a trunk lid and a torsion bar mounted between the hinge arm and the hinge bracket for receiving resilience to a direction to which the hinge arm is opened, the structure comprising:
a guide bracket integrally formed with the hinge bracket for receiving a trace where the hinge arm moves; and
multi-stage control means mounted between the guide bracket and the hinge arm for resiliently controlling a position of the hinge arm multi-stages.


REFERENCES:
patent: 4188684 (1980-02-01), Pennec
patent: 4206944 (1980-06-01), Kumagai et al.
patent: 4223483 (1980-09-01), Stafford
patent: 4402111 (1983-09-01), Selby et al.
patent: 4580315 (1986-04-01), Beckwith
patent: 5195796 (1993-03-01), Wampler, II
patent: 6181094 (2001-01-01), Menke

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