Display unit

Details Display unit Display unit

2003-03-17

2004-06-15

Paumen, Gary (Department: 2833)

Electrical connectors

With external conductor or cable embedded in insulative...

C439S275000, C439S587000

Reexamination Certificate

active

06749462

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a display unit. More particularly, this invention relates to a display unit provided with a lamp and a lead wire, which are connected and molded with an intermediate thereon.
2. Description of Prior Art
Referring to
FIGS. 1A and 1B
,
FIG. 1A
is a view showing a display structure
1
according to the prior art, and
FIG. 1B
is a top view of FIG.
1
A.
In
FIG. 1A
, a display unit
1
comprises a case
10
, a panel
11
, a lamp
12
having two ports
121
(
121
), two plastic sleeves
13
(
13
) and two lead wires
14
(
14
), wherein the lead wires
14
(
14
) are respectively applied with high voltage and grounded. The panel
21
and the lamp
12
are received in the case
10
, and the lamp
12
is placed next to the panel
21
. The lamp
12
has two ports
121
(
121
), and the lead wires
14
(
14
) are connected to the ports
121
(
121
).
In
FIG. 1B
, the plastic sleeve
13
covers the junction of the port
121
of the lamp
12
and the lead wires
14
which are connected, and the plastic sleeve
13
is used as a stopper placed against the case
20
.
Referring to
FIGS. 2A and 2B
,
FIG. 2A
is an enlarged view according to a region Z
1
of
FIG. 1B
, and
FIG. 2B
is an exploded view according to FIG.
2
A.
In
FIG. 2B
, the port
121
is extended from the lamp
12
, and a hole
122
is formed on the end of the port
121
. Another port
141
is formed on the end of the lead wire
14
. The sleeve
13
is a hollow element provided with an L-shaped through hole
130
therein. The lead wire
14
is connected to the lamp
12
by plugging the port
141
to the hole
122
of the port
121
within the L-shaped through hole
130
of the sleeve
13
. As the sleeve
13
is set on the port
121
of the lamp
12
and the port
141
of the wire
14
, the sleeve
13
can be used as a stopper with its end
131
adjacent to the case
10
.
FIG. 2C
is a cross-sectional view according to FIG.
2
A. Clearances exist between the sidewall of the L-shaped through hole
130
and the port
121
as well as between the sidewall of the L-shaped through hole
130
and the port
141
. Once the lead wire
14
is pulled by an abnormal or abrupt force F, the force F is directly transmitted to the port
121
of the lamp
12
, and the lead wire
14
is easily dislodged from the lamp
12
even if the sleeve
13
is pressed on the case
10
.
SUMMARY OF THE INVENTION
To solve the above problem, the primary object of this invention is to provide a method for forming a display unit. The display unit comprises a panel, a lamp having a first port and a lead wire having a second port connected to the first port to form a conjunctive portion. A mold is provided with a cavity and a riser. The conjunctive portion is placed in the cavity and a fluxed intermediate is injected into the cavity to integrally coat on the conjunctive portion.


REFERENCES:
patent: 2460636 (1949-02-01), Holloway
patent: 2633483 (1953-03-01), Hafke
patent: 2968783 (1961-01-01), Puetz
patent: 5993256 (1999-11-01), Shimojyo
patent: 6190212 (2001-02-01), Brown et al.

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