Press button

Details Press button Press button

2001-02-22

2002-05-21

Bradley, P. Austin (Department: 2832)

Electricity: circuit makers and breakers

Solid contact

Push button operated

Reexamination Certificate

active

06392180

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a press button, and more particularly to a two-stage press button whose locating positions in switching can be changed in different directions.
2. Description of the Prior Art
A two-stage press button is often used to control the height of a pressed member or to change the position thereof for electric appliances, stationery, machines, daily essentials, etc. The principal and the configuration thereof are the same as that of a press-type ball point pen that is only movable straight up and down by a pressing action. Hence, the function thereof is much limited in use because it is not applicable to objects that can't be controlled by the straight displacement.
A conventional two-stage press button is shown in
FIGS. 10 and 11
. When the press element
101
of the main body
100
is situated at the position (H), a locking element
103
of the main body
100
is fixed at a lower position (II) of a heart-shaped slide groove
102
of the press element
101
while a spring
104
supports against the press element
101
. Therefore, a first locating stage at a higher position is formed. When the press element
101
is pressed down to the position (L), the locking element
103
of the main body
100
is fixed at a higher position (I) of the heart-shaped slide groove
102
of the press element
101
, thereby forming a second locating stage at a lower position. Accordingly, the locating positions of the press element
101
in switching can only be changed in an upward and downward straight way. The displacement of the press element
101
in different directions can't be reached so that the function thereof is much limited.
SUMMARY OF THE INVENTION
It is a primary object of the present invention to eliminate the drawbacks of the up and down switching way of the conventional two-stage press button and to provide a press button which can be switched in a way of different directions.
It is another object of the present invention to provide a press button which is applicable to electric appliances, toys or other objects in order to reaching the convenience and the safety in use.


REFERENCES:
patent: 4447686 (1984-05-01), Fieber et al.
patent: 4661667 (1987-04-01), Sorimachi et al.
patent: 5280148 (1994-01-01), Cummins
patent: 5841085 (1998-11-01), Rittinghaus et al.

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