Electricity: circuit makers and breakers – Special application – Incubator
Reexamination Certificate
2003-01-21
2004-09-14
Enad, Elvin (Department: 2832)
Electricity: circuit makers and breakers
Special application
Incubator
C200S061540
Reexamination Certificate
active
06791042
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an automotive lever switch for use in switching selector for headlight or windshield wiper speed.
BACKGROUND ART
Nowadays, along with advance in multi-functional car technologies, many kinds of automotive lever switch with diversified functions fitted around steering-wheel are developed using a plurality of components for turn-signal-switch-unit to operate flashing indicator or wiper-switch-unit to select wiping speed.
A conventional automotive lever switch is described with reference to
FIGS. 7 and 8
.
FIG. 7
shows a cross-sectional view of a conventional automotive lever switch. In
FIG. 7
, approximately cylinder-like automotive lever switch body
1
(hereafter refer to lever body
1
) formed of insulating resin has opening
1
A formed along side-wall from tip to foot longitudinally.
A conventional automotive lever switch comprises; (a) rotatable operation switch
2
, and (b) cap-shaped operation knob
3
composed of an insulating resin. Shaft holder
1
B of lever body
1
holds approximately cylinder-like intermediate shaft portion
2
A of switch
2
, and an end of shaft portion
2
A is fixed by fixing ring
2
B. Operation knob
3
for switch
2
mounted at tip of lever body
1
is fixed rotatably on periphery of switch
2
at tip of lever body
1
.
Additionally, first end of lead-wire
4
, housed in lever body
1
, is connected to switch
2
, and second end is connected to connector
4
A which protrudes from foot of lever body
1
.
Moreover, both ends of cover
5
, composed of insulating resin, are fixed by screws
20
A,
20
B on lever body
1
to cover opening
1
A formed along side-wall of lever body
1
to form automotive lever switch
6
.
Next, assembling method of automotive lever switch
6
of above configuration is described.
First, shaft portion
2
A of switch
2
to which lead-wire
4
has been connected is put into shaft holder
1
B from tip of lever body
1
. Then, shaft portion
2
A is fixed on shaft holder
1
B using fixing ring
2
B inserted at end of shaft portion
2
A from opening
1
A.
Then, operation knob
3
for switch
2
mounted at tip of lever body
1
is fixed rotatably on periphery of switch
2
, and lead-wire
4
is housed in lever body
1
from opening
1
A to draw out connector
4
A from foot of lever body
1
.
Next, both ends of cover
5
are fixed on lever body
1
by screws
20
A,
20
B to cover opening
1
A formed along side-wall of lever body
1
resulting in an assembly of automotive lever switch
6
.
Automotive lever switch
6
assembled as above has a configuration that a foot of an automotive lever switch
6
is mounted in a predetermined place of switch unit body
7
, and connector
4
A of lead-wire
4
is connected to an electronic circuit (not shown) in switch unit body
7
to form switch unit
8
as shown in a side view of switch unit
8
in FIG.
8
.
The configuration sends a prescribed signal to switch unit body
7
through lead-wire
4
to carry out, for example, selection of head light, when operation knob
3
at tip of automotive lever switch
6
is rotated to induce switching operation of internal switch
2
.
However, aforementioned conventional automotive lever switch
6
has a drawback to need a long time for assembling, as opening
1
A provided to mount switch
2
or to house lead-wire
4
must be covered to lever body
1
with cover
5
screwed by screws
20
A,
20
B in two places.
SUMMARY OF THE INVENTION
An automotive lever switch disclosed in this invention comprises: (a) an approximately cylinder-like lever switch body having opening formed along side-wall from tip to foot; (b) a cover to cover the opening; (c) a switch disposed at tip of lever switch body; and (d) a lead-wire having first end connected to the switch and second end protruding from foot of lever switch body,
wherein, first slope face provided in coupling section at one end of lever switch body and second slope face provided in fitting section of cover are fitted together to prevent the cover from coming off the lever switch body.
REFERENCES:
patent: 3859489 (1975-01-01), Tomlinson
patent: 4218595 (1980-08-01), Honjo
patent: 4219706 (1980-08-01), Koch et al.
patent: 4942273 (1990-07-01), Furuhashi et al.
patent: 5670765 (1997-09-01), Yokoyama et al.
patent: 5780794 (1998-07-01), Uchiyama et al.
patent: 5804784 (1998-09-01), Uchiyama et al.
patent: 5895899 (1999-04-01), Sano
patent: 6011225 (2000-01-01), Yokoyama
patent: 6150620 (2000-11-01), Luley et al.
patent: 6548770 (2003-04-01), Stewart et al.
Nakade Yoshiyuki
Nakamura Takeo
Enad Elvin
Klaus Lisa
RatnerPrestia
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