Rear window washer wiper operating switch

A rear window washer wiper control comprising a first movable member and a second movable member, the movable members comprising a slide switch for a washer circuit and a slide switch for a wiper circuit. Both switches are incorporated in one case to energize a wiper motor by moving the second movable member to the right and also to push and move the second movable member accordingly when the first movable member is moved to the right, thereby working a washer motor and a wiper motor simultaneously. Once an operating piece of the first movable member is released, the first movable member is forced back to the original position thereof by virtue of a built-in spring for automatic resetting, thus resulting in the washer motor stopping. The wiper motor continues to work so long as the second movable member is not manually reset to the original state thereof.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
This invention relates to a rear window washer wiper operating switch 
having the first movable member and the second movable member provide for 
operating a slide switch for a washer circuit and a slide switch for a 
wiper circuit which are contained in one case and arranged so as to enable 
both switches to be operated independently and/or cooperatively by manual 
operation. 
2. Description of the Prior Art 
The conventional rear window washer wiper operating switch of the prior art 
has been such that a washer switch and a wiper switch which work 
independent of each other have merely been installed in parallel. 
According to the prior art, for working the washer switch and the wiper 
switch, these switches have had to be operated individually and 
accordingly there has been inconvenience in the operation with difficulty 
in quick practice. 
Further, the conventional operating switch has incurred various 
shortcomings, for example, the construction thereof is intricate, 
difficulty lies in the workmanship and so forth. 
SUMMARY OF THE INVENTION 
It is a principal object of the present invention to provide a novel rear 
window washer wiper operating switch wherein a slide switch for a washer 
circuit and a slide switch for a wiper circuit are incorporated in one 
case to operate both switches in cooperation with each other by manual 
operation. It is another object of the present invention to provide a rear 
window washer wiper operating switch having a simple construction. 
It is a further object of the present invention to provide a novel rear 
window washer wiper operating switch having features of an automatic 
resetting type. 
It is a still further object of the present invention to provide a rear 
window washer wiper operating switch mountable easily on automobiles 
because of the switches having been incorporated in one case.

DESCRIPTION OF THE PREFERRED EMBODIMENTS 
Referring now to FIG. 1 and FIG. 2, there is given a detailed description 
of a suitable embodiment of the rear window washer wiper operating switch 
of the present invention. 
As shown in the drawings, a slide switch 1 is provided for controlling a 
washer circuit, a slide switch 2 is provided for controlling a wiper 
circuit and a case 3 and a base board 4 are used in common for the 
switches. On the base board 4, a fixed contact 5 for the washer circuit, 
fixed contacts 6 and 7 for the wiper circuit, a toothed piece 8, embossed 
pieces 9 and 10 and a side protruding piece 11 are fitted. 
A moving contact piece 12 is provided for the washer circuit and slides on 
the embossed piece 9 and the fixed contacts 5 for the washer circuit. The 
moving contact piece 12 for the washer circuit is made into one integral 
piece with two traveling contacts 13 and two rising pieces 14. 
A moving contact piece 15 is provided for the wiper circuit and slides on 
the embossed piece 10 and the fixed contacts 6 and 7 for the wiper 
circuit. The moving contact piece 15 for the wiper circuit is formed 
substantially as one piece with two traveling contacts 16 and two rising 
pieces 17. 
The moving contact piece 12 for the washer circuit and the moving contact 
piece 15 for the wiper circuit are so arranged as to enable operating with 
pieces 19 and 24 by inserting the rising pieces 14 and 17 thereof into the 
holes (not indicated by drawing) made at the backs of the first movable 
member 18 and the second movable member 23 respectively. 
The first movable member 18 is fitted substantially with an operating piece 
19 on the top thereof, a spring housing port 20 at the bottom, a 
projection 21 at one side and a spring housing space 22 provided around 
said projection 21. The second movable member 23 is provided with an 
operating piece 24 on the top thereof and a spring housing port 25 at the 
bottom substantially. 
The first movable member 18 and the second movable member 23 are put 
substantially on the base board 4 with the moving contact piece 12 for the 
washer circuit and the moving contact piece 15 for the wiper circuit 
fitted to the respective lower portions. 
In the spring housing port 20 of the first movable member 18 and the spring 
housing port 25 of the second movable member 23, springs 26 and 27 are 
inserted respectively to press the moving contact piece 12 for the washer 
circuit and the moving contact piece 15 for the wiper circuit. 
Further, in the spring housing space 22 provided at the side of the first 
movable member 18, a spring 28 for automatic resetting is inserted 
substantially and the case 3 is secured onto the base board 4 with all of 
the above parts contained. The case is fitted closely to the base board 
with the protruding pieces 11 attached to the side periphery of the base 
board 4 and with the slots 29 provided in the side periphery of the case 
3. 
Moreover, in the surface of the case 3, a window 30 is made through which 
the operating piece 19 of the first movable member 18 and the operating 
piece 24 of the second movable member extend. 
At the approximate central portion of the case 3, there is provided a 
window through which the projection 21 of the first movable member 18 can 
be passed and further the end of the spring 28 for automatic resetting is 
accommodated in the spring housing port 22 of the first movable member. 
Moreover, there are holes (not indicated by drawing) provided at both sides 
adjacent to the spring housing port 25 at the bottom of the second movable 
member 23 to accommodate spring 32 and 33 and steel balls 34 and 35 
energized by the springs. The steel balls 34 and 35 press substantially 
the toothed pieces 8 fitted onto the base board 4 to provide a regulating 
action, whereby the second movable member 23 and the moving contact piece 
15 for the wiper circuit are actuated with proper regulation. A regulating 
device is composed substantially of the aforesaid second movable member 
23, the springs 32 and 33 and further the steel balls 34 and 35 housed in 
the port at the bottom thereof and the toothed pieces 8 fitted onto the 
base board 4. 
The rear window washer wiper operating switch of the present invention 
having the abovementioned construction operates substantially as follows. 
When the operating pieces 19 and 24 are kept in inoperative condition, the 
first movable member 18 remains pushed back to the left in the drawing by 
virtue of the spring 28 for automatic resetting. 
Therefore, the moving contact piece 12 for the washer circuit is separated 
from the fixed contacts 5 for the washer circuit. Thus, the slide switch 1 
for changing over the washer circuit is in OFF state. On the other hand, 
in the second movable member 23, the steel balls 34 and 35 pressed by the 
springs 32 and 33 rest in either trough of two of the toothed pieces. 
Assuming now the steel balls 34 and 35 are in the left trough in the 
drawing, the moving contact piece 15 for the wiper circuit closes the 
fixed contacts 7 for the wiper circuit. 
When the fixed contacts 7 for the wiper circuit are employed as a contact 
for the brake of a wiper motor (not indicated by drawing), the wiper 
operation is stopped. The fixed contacts 6 for the wiper circuit may be 
used for actuating the wiper motor. 
Assuming now the second movable member 23 is moved to the right in the 
drawing from the above condition by operating the operating piece 24, the 
moving contact piece 15 for the wiper circuit separates from the fixed 
contacts 7 for the wiper circuit and comes in contact with the fixed 
contacts 6 for the wiper circuit to close thereof, thus actuating a wiper 
(not indicated by drawing). 
Here, the slide switch 2 for changing over the wiper circuit is retained in 
the changed-over position thereof by the action of the regulating device 
comprising the springs 32 and 33 and further the steel balls 34 and 35 
contained in the second movable member 23 and the toothed pieces 8. For 
stopping the wiper operation, the operating piece 24 may be operated to 
the left in the drawing. 
The slide switch 2 for changing over the wiper circuit can thus be operated 
independent of the slide switch 1 for changing over the washer circuit. 
Further, upon operating the operating piece 19 of the slide switch 1 for 
changing over the washer circuit toward the operating piece 24 when the 
slide switch 1 for changing over the washer circuit and the slide switch 2 
for changing over the wiper circuit are both in OFF status, the moving 
contact piece 12 for the washer circuit comes in contact with the fixed 
contacts 5 for the washer circuit to close, thereby actuating a washer 
motor (not indicated by drawing) and further the projection 21 mounted on 
the first movable member 18 pushes the second movable 23 to actuate it, 
thereby bringing the moving contact piece 15 for the wiper circuit into 
contact with the fixed contacts 6 for the wiper circuit and actuating the 
wiper motor. 
When the slide switch 1 for changing over the washer circuit is operated in 
the manner mentioned above, the slide switch 2 for changing over the wiper 
circuit, too is operated cooperatively and the result is that simultaneous 
operation of the washer circuit and wiper circuit is accomplished. Upon 
cancelling the operation of the operating piece 19, the first movable 
member 18 is pushed back to the original position thereof by virtue of the 
spring for automatic resetting 28, thus stopping the operation of washer. 
However, the slide switch 2 for changing over the wiper circuit does not 
reset automatically since the regulating device is provided and is 
retained in the changed-over condition thereof. Thus, so long as the 
operating piece 24 is not reset by manual operation, the wiper circuit 
continues to work. 
The rear window washer wiper operating switch of this invention has the 
abovementioned construction and operation and provides substantially the 
following advantages; 
(a) Once the slide switch for changing over the washer circuit is operated, 
the slide switch for changing over the wiper circuit is operable 
cooperatively and further the slide switch for changing over the wiper 
circuit can be operated independently, thus enabling change-over operation 
for actuating the washer and wiper to be performed only with a finger. 
(b) Since the slide switch for changing over the washer circuit has an 
automatic resetting operation, there is no possibility of the washer 
liquid being consumed more than required. The device that retains the 
slide switch for changing over the wiper circuit in the change-over 
position thereof makes it possible to work the wiper continuously only for 
the required time. 
(c) Because of the slide switch for changing over the washer circuit and 
the slide switch for changing over the wiper circuit are contained in one 
case, easy installation of this operating switch on automobiles is 
achieved. Although the illustrative embodiment of this invention has the 
aforementioned features, this invention is not limited to the aforesaid 
embodiment and the claims thereof will be made clear by the following 
statement.