See-saw switch

Electricity: circuit makers and breakers – Electric switch details – Indicators

Reexamination Certificate

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Details

C200S553000, C200S293000, C200S339000

Reexamination Certificate

active

06462292

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a see-saw switch, and more particularly, to a switch which is simplified in configuration, convenient in assembly and improved in the electric connection quality thereof.
2. Description of the Prior Art
The conventional see-saw switch
7
, as shown in
FIGS. 7 and 8
, includes a see-saw type button
71
. When either side of the button
71
is pressed down, a push cylinder
72
at the bottom thereof is pressed against a see-saw conductive piece
74
due to the resilience of the pressure spring
73
. As a result, a disconnection (Off) state or a connection (On) state is achieve.
However, the conventional see-saw switch still has the following drawbacks:
In order to achieve a see-saw movement of the conductive piece
74
on a pivoting point of a groove
751
of a conductive plate
75
, a recessed area
711
has to be formed at center of the button
71
for receiving a push cylinder
72
and a conductive spring wire
78
. The number of components is therefore increased so that the amount of labor and the production cost in assembly must be increased as well.
The conductive piece
74
is easily worn or loosened due to the continuous see-saw movement on top of the groove
751
. In addition, the push cylinder
72
makes a reciprocating movement on the conductive piece
74
. As a result, the pressure spring
73
fatigues after a long period of use, and the pressing force of the push cylinder
72
is reduced, influencing the effectiveness of the electric continuity of the switch.
The push cylinder
72
is disposed at center of the switch housing so that the neon light
76
can only be mounted on the top of the recessed area
711
and has to be moved with the button
71
. As a result, a conductive spring wire
78
has to be fitted at the top of a third conductive plate
77
in order to connect to the neon light
76
and supply power thereto. This is not only impractical to assembly, but the malfunction rate is also higher.
SUMMARY OF THE INVENTION
It is a primary object of the present invention to provide a see-saw switch whose components are simplified and whose assembly is more convenient and faster.
It is another object of the present invention to provide a see-saw switch which has improved electric continuity quality.
It is a further object of the present invention top provide a see-saw switch whose volume is reduced.


REFERENCES:
patent: 3371179 (1968-02-01), Lohr
patent: 4037068 (1977-07-01), Gaynor
patent: 5694106 (1997-12-01), Wang
patent: 5760672 (1998-06-01), Wang

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