CA1297645C - Mechanism for supplying washing solutions to glass washer device - Google Patents
Mechanism for supplying washing solutions to glass washer deviceInfo
- Publication number
- CA1297645C CA1297645C CA000543902A CA543902A CA1297645C CA 1297645 C CA1297645 C CA 1297645C CA 000543902 A CA000543902 A CA 000543902A CA 543902 A CA543902 A CA 543902A CA 1297645 C CA1297645 C CA 1297645C
- Authority
- CA
- Canada
- Prior art keywords
- nozzle
- tank
- washing solution
- pump
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/50—Arrangement of reservoir
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/481—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Body Structure For Vehicles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A mechanism for supplying washing solutions to an automotive glass washer device having at least one wiper blade for wiping a glass member. The washing solution supplying mechanism includes a first tank, a first pump, and a first pipe for supplying a first washing solution for cleaning away oridinary dirt to at least one nozzle disposed in confronting relation to the glass member. The mechanism also includes a second tank, a second pump, and a second pipe for supplying a second washing solution different from the first washing solution and containing a substance for cleaning away special dirt, to the nozzle, a first one-way valve disposed in the first pipe and coupled between the nozzle and the first pump for only allowing the first washing solution to flow from the first tank to the nozzle, and a second one-way valve disposed in the second pipe and coupled between the nozzle and the second pump for only allowing the second washing solution to flow from the second tank to the nozzle.
A mechanism for supplying washing solutions to an automotive glass washer device having at least one wiper blade for wiping a glass member. The washing solution supplying mechanism includes a first tank, a first pump, and a first pipe for supplying a first washing solution for cleaning away oridinary dirt to at least one nozzle disposed in confronting relation to the glass member. The mechanism also includes a second tank, a second pump, and a second pipe for supplying a second washing solution different from the first washing solution and containing a substance for cleaning away special dirt, to the nozzle, a first one-way valve disposed in the first pipe and coupled between the nozzle and the first pump for only allowing the first washing solution to flow from the first tank to the nozzle, and a second one-way valve disposed in the second pipe and coupled between the nozzle and the second pump for only allowing the second washing solution to flow from the second tank to the nozzle.
Description
1297~.~5 2 TO GL~SS WASHER DEVICE
1. Field of the Invention:
6 The present invention relates to a mechanism for 7 supplying washing solutions, and more particularly to a 8 mechanism for supplying washing solutions to a washer 9 device for washing a glass sheet, for example, such as an automotive windshield.
11 2. Description of the Relevant Art:
12 When an automobile runs in rainy weather, the 13 outer surface of the front windshield thereof is smeared 14 with rain water containing mud or no mud and muddy water splashed from the road surface. The automobile is normally 16 equipped with a window washer device for washing away dirt 17 from the front windshield. The window washer device 18 includes a mechanism for supplying a washing solution, and 19 a wiper blade. The washing solution supplying mechanism comprises a washing solution tank disposed below an engine 21 hood, nozzles disposed near the windshield in confronting 22 relation thereto, pipes communicating the washing solution 23 tank with the nozzles, and a pump attached to the tank for 24 supplying the washing solution from the tank to the noæzles. The wiper blades are positioned on the front 26 windshield and controlled by a wiper switch near a steering 27 wheel for wiping the front windshield.
, .
12976~5 1 The conventional window washer device includes 2 only one washing solution tank, so that only one type of 3 washing solution is ejected against the windshield. The 4 washing solution is normally a relatively inexpensive cleaning agent or detergent.
6 While an automobile is running in fine weather, 7 the front windshield may be smeared with pitch, tar, and/or 8 insect bodies which hit the windshield. Since such a smear 9 contain organic substances, it is less cleanable by the ordinary cleaning agent. This problem can be solved by 11 filling the tank with a special washing solution, i.e., an 12 organic solvent containing alcohol, which is capable of 13 removing both muddy dirt and organic dirt. Such a special 14 washing solution is expensive, but is nevertheless required to clean away an ordinary deposit of dirt for~ed by 16 application of muddy water. The special washing solution 17 should not be diluted with water. One solution would be to 18 add a second washing solution tank filled with a special 19 washing solution, and the ordinary and special washing solutions could selectively be used dependent on the type 21 of dirt on the windshield. Although such a proposal might 22 reduce the cost of the washing solutions used, the window 23 washer device would be complex and expensive since another 24 system of a second pump, second pipes, and second nozzles would be needed to supply the special washing solution in 26 isolation from the ordinary washing solution while 27 preventing the special washing solution from flowing into '7S ' ' 1297~ 5 1 the tank of the ordinary washing solution and also 2 preventing the ordinary washing solution from flowing into 3 the tank of the special washing solution.
4 There have been proposed in recent years window washer devices which additionally include pipes and nozzles 6 for washing glass members such as glass shields for 7 headlamps, a rear windshield, and the like. These recent 8 window washer devices have however suffered from the same 9 problems as described above.
The present invention has been made in an effort 11 to effectively eliminate the aforesaid drawbacks of the 12 conventional mechanism for supplying washing solutions to a 13 washer device for washing a glass sheet such as an auto-14 motive windshield.
SUMMARY OF THE INVENTION
16 It is an object of the present invention to 17 provide a simple and inexpensive mechanism for supplying 18 washing solutions to a glass washer device, the mechanism 19 being capable of preventing a special washing solution formulated to wash away pitch, tar, insects, and other 21 organic dirt from being mixed into a tank of an ordinary 22 washing solution and also preventlng the ordinary washing 23 solution from flowing into a tank of the special washing 24 solution.
The above object can be achieved according to the 26 present invention by providing a mechanism for supplying 27 washing solutions to an automotive glass washer device 12~76~5 1 having at least one wiper blade for wiping a glass member, 2 comprising at least one nozzle disposed near the glass 3 member in confronting relation thereto, a first tank for 4 containing a first washing solution for cleaning away oridinary dirt, a first pipe interconnecting the first tank 6 and the nozzle, a first pump disposed in the pipe for 7 supplying the first washing solution from the first tank to 8 the nozzle, a first switch for selectively actuating the 9 first pump, a second tank for containing a second washing solution different from the first washing solution and 11 containing a substance for cleaning away special dirt, a 12 second pipe interconnecting the second tank and the nozzle, 13 a second pump disposed in the pipe for supplying the second 14 washing solution from the second tank to the nozzle, a second switch for selectively actuating the second pump, a 16 first one-way valve disposed in the first pipe and coupled 17 between the nozzle and the first pump for only allowing the 18 first washing solution to flow from the first tank to the 19 nozzle, and a second one-way valve disposed in the second pipe and coupled between the nozzle and the second pump for 21 only allowing the second washing solution to flow from the 22 second tank to the nozzle.
23 The above and further objects, details and 24 advantages of the present invention will become apparent from the following detailed description of a preferred 26 embodiment thereof, when read in conjunction with the 27 accompanying drawings.
~2~'76~i 2 FIG. 1 is a plan view of a mechanism for 3 supplying a washing solution to a glass washer device 4 according to a preEerred embodiment of the present invention;
6 FIG. 2 is a plan view of a second washing 7 solution tank of the mechanism shown in FIG. l;
8 FIG. 3 is a front elevational view of the 9 instrumental panel of an automobile incorporating the mechanism of the present invention; and 11 FIG. 4 is a circuit diagram of a circuit for 12 actuating a pump associated with the washing solution tank 13 shown in FIG. 2.
FIG. 1 schematically shows a glass washer device 16 associated with a mechanism for supplying a washing 17 solution according to a preferred embcdiment of the present 18 invention. The glass washer device, generally denoted by 19 the reference numeral 10, is positioned in a front portion of an automobile 30 having a front windshield 4, and hence 21 serves as a front windshield washer device. The automobile 22 30 has an engine 2 disposed in a front engine compartment 23 3. A pair of laterally spaced wiper blades 5 is normally 24 disposed adjacent to the lower front surface of the windshild 4 and concealed in their entirety below an engine 26 hood (not shown). Nozzles 6, 7 are positioned at the lower 27 edge of the windshield 4 just in front of the wiper blades 1~976 ~5 1 5 and face the windshield 4. The nozzle 6 has two branch 2 inlets 6a, 6b, and the nozzle 7 has two branch inlets 7a, 3 7b.
4 A first tank 8 containing a washing solution (hereinafter referred to as a first washing solution) for 6 washing away ordinary dirt resulting from application of 7 muddy water to the windshield 4 is disposed in a lefthand 8 (as viewed in the direction of travel of the automobile 30) 9 portion of the engine compartment 3. The tank 8 is coupled to the nozzles 6, 7 through a pump 10 and a pipe 9. The 11 pump 10, when operated, supplies the first washing solution 12 to the nozzles 6, 7. The pipe 9 comprises a main portion 13 9c and two branch portions 9a, 9b. The main portion 9c has 14 an end connected to the outlet of the pump 10. The branch portions 9a, 9b have ends joined to the branch inlets 6a, 16 7a, respectively, of the nozzles 6, 7. The other end of 17 the main pipe portion 9c is joined to the other ends of the 18 branch portions 9a, 9b through a one-way valve 14. The 19 one-way valve 14 allows the washing solution to flow from the first tank 8 to the nozzles 6, 7, while preventing the 21 washing solution from flowing backwards from the nozzles 6, 22 7 to the first tank 8. When the pump 10 is actuated, the 23 first washing solution in the first tank 8 is supplied via 24 the main pipe portion 9c, the one-way valve 14, the branch pipe portions 9a, 9b, and the branch inlets 6a, 7a to the 26 nozzles 6, 7, from which the first washing solution is 27 ejected against the windshield 4.
-, . ... ~, .
~976~5 1 A second tank 11 containing an organic solvent 2 (hereinafter referred to as a second washing solution) 3 containing alcohol for washing away organic dirt such as 4 pitch, tar, insect bodies, and the like is disposed in a rightthand (as viewed in the direction of travel of the 6 automobile 30) portion of the engine compartment 3. The 7 second tank 11 is coupled to the nozzles 6, 7 through a 8 pump 12 and a pipe 13. The pump 12, when operated, 9 supplies the second washing solution to the nozzles 6, 7.
The pipe 13 comprises a main portion 13c and two branch 11 portions 13a, 13b. The main portion 13c has an end 12 connected to the outlet of the pump 12. The branch 13 portions 13a, 13b have ends joined to the other branch 14 inlets 6b, 7b, respectively, of the nozzles 6, 7. The other end of the main pipe portion 13c is joined to the 16 other ends of the branch portions 13a, 13b through a 17 one-way valve 15. The one-way valve 15 allows the washing 18 solution to flow from the second tank 11 to the nozzles 6, 19 7, while preventing the washing solution from flowing backwards from the nozzles 6, 7 to the second tank 11.
21 When the pump 12 is actuated, the second washing solution 22 in the second tank 12 is supplied via the main pipe portion 23 13c, the one-way valve .5, the branch pipe portions 13a, 24 13b, and the branch inlets 6b, 7b to the nozzles 6, 7, from which the second washing solution is ejected against the 26 windshield 4.
27 As illustrated in FIG. 2, a battery 16 is mounted , . , " i297f~.~5 1 on a battery holder 17 much larger than the size of the 2 battery 16, and held in place by an auxiliary stay 17a.
3 The battery holder 17 has a portion on which the battery 16 4 is placed and another relatively small portion 17b remote from the battery 16 and on which the second tank 11 and the 6 pump 12 are mounted. The tank 11 is located on the 7 relatively small portion 17b and should preferably be in 8 the form of a flexible plate of synthetic resin.
9 FIG. 3 shows an instrumental panel 18 of the automobile 30. The instrumental panel 18 supports various 11 meters or instruments 21 located forwardly of a steering 12 wheel 19. The steering wheel 19 is coupled to a steering 13 column covered with a steering column cover (not shown) 14 provided with a rod-shaped washer switch 20 having a wiper speed selection knob 20a on its outer end. The knob 20a is 16 angularly movable about the axis of the switch 20 and 17 selectively stoppable in a plurality of angular positions 18 corresponding to wiper stoppage, low-speed wiper operation, 19 and high-speed wiper operation. The wiper blades 5 are stopped or continuously moved by shifting the knob 20a into 21 one of the selectable positions. The washer switch 20 is 22 resiliently swingable toward the driver at the steering 23 wheel 19. While the washer switch 20 is being swung toward 24 the driver, the pump 10 is continuously actuated to supply the first washing solution from the first tank 8 to the 26 nozzles 6, 7 from which the first washing solution is 27 applied to the windshield 4. The knob 20a and the washer , . . .
lZ~645 1 switch 20 are functionally independent of each other.
2 A second washer switch 22 which is resiliently 3 rotatable clockwise is disposed on the instrumental panel 4 18 at a position leftward of the meters 21. While the second washer switch 22 is being in a rotated position, the 6 pump 12 is continuously operated to supply the second 7 washing solution from the second tank 11 to the nozzles 6, 8 7 from which the second washing solution is ejected against 9 the windshild 4.
As illustrated in FIG. 4, the second washer 11 switch 22 is electrically connected between one terminal of 12 a motor which operates the motor 12 and a positive power 13 supply terminal 23, the other terminal of the motor being 14 grounded.
The glass washer device 1 will operate as 16 follows:
17 When the automobile 30 runs in a rain, the knob 18 20a is turned to the low-speed operation position for 19 continuously actuating the wiper blades 5. If any muddy water dirt is applied to the windshield 4, then the washer 21 switch 20 is turned from time to time for ejecting the 22 first washing solution from the nozzles 6, 7 toward the 23 windshield 4. The above process of applying the washing 24 solution to the windshield is already known.
If pitch, tar, or other organic dirt such as 26 insect bodies is attached to the windshield 4 while the 27 automobile 30 is running in fine weather, first the second _ g _ " 12976 ~5 1 tank motor switch 22 is turned on. The second washing 2 solution is now supplied from the second tank 11 via the 3 nozzles 6, 7 to the windshield 4. Then, the wiper knob 20 4 is turned to the low-speed operation position, for example, to operate the wiper blades 5 for a desired time interval 6 thereby to wipe out the dirt deposit. Thereafter, the 7 first washer switch 20 is pulled toward the driver to eject 8 the first washing solution against the windshield 4 to 9 clean up the windshield 4.
The nozzles 6, 7 are connected to the first tank 11 8 and the second tank 11 through the pipes 9, 13, 12 respectively. Therefore, it is not necessary to provide 13 special nozzles for use with the respective first and 14 second washing solutions. As a result, the washer device 1 is simple in structure and inexpensive to manufacture. The 16 one-way valve 14 prevents the second washing solution 17 supplied from the second tank 11 to the nozzles 6, 7 from 18 flowing toward the first tank 8. The other one-way valve 19 15 prevents the first washing solution supplied from the first tank 8 to the nozzles 6, 7 from flowing toward the 21 second tank 8.
22 While the washer device 1 for use with the front 23 windshield has been described above, the principles of the 24 present invention are applicable to a window washer device which additionally includes pipes and nozzles for washing 26 the glass shields of head lamps or a rear windshield.
27 ~lthough there has been described what is at 12~76~5 1 present considered to be the preferred embodiment o~ the 2 present invention, it will be understood that the invention 3 ~ay be embodied in other specific forms without departing 4 from the spirit or essential characteristics thereof. The present embodiment is therefore to be considered in all 6 aspects as illustrative, and not restrictive. The scope of 7 the invention is indicated by the appended claims rather 8 than by the foregoing description.
1. Field of the Invention:
6 The present invention relates to a mechanism for 7 supplying washing solutions, and more particularly to a 8 mechanism for supplying washing solutions to a washer 9 device for washing a glass sheet, for example, such as an automotive windshield.
11 2. Description of the Relevant Art:
12 When an automobile runs in rainy weather, the 13 outer surface of the front windshield thereof is smeared 14 with rain water containing mud or no mud and muddy water splashed from the road surface. The automobile is normally 16 equipped with a window washer device for washing away dirt 17 from the front windshield. The window washer device 18 includes a mechanism for supplying a washing solution, and 19 a wiper blade. The washing solution supplying mechanism comprises a washing solution tank disposed below an engine 21 hood, nozzles disposed near the windshield in confronting 22 relation thereto, pipes communicating the washing solution 23 tank with the nozzles, and a pump attached to the tank for 24 supplying the washing solution from the tank to the noæzles. The wiper blades are positioned on the front 26 windshield and controlled by a wiper switch near a steering 27 wheel for wiping the front windshield.
, .
12976~5 1 The conventional window washer device includes 2 only one washing solution tank, so that only one type of 3 washing solution is ejected against the windshield. The 4 washing solution is normally a relatively inexpensive cleaning agent or detergent.
6 While an automobile is running in fine weather, 7 the front windshield may be smeared with pitch, tar, and/or 8 insect bodies which hit the windshield. Since such a smear 9 contain organic substances, it is less cleanable by the ordinary cleaning agent. This problem can be solved by 11 filling the tank with a special washing solution, i.e., an 12 organic solvent containing alcohol, which is capable of 13 removing both muddy dirt and organic dirt. Such a special 14 washing solution is expensive, but is nevertheless required to clean away an ordinary deposit of dirt for~ed by 16 application of muddy water. The special washing solution 17 should not be diluted with water. One solution would be to 18 add a second washing solution tank filled with a special 19 washing solution, and the ordinary and special washing solutions could selectively be used dependent on the type 21 of dirt on the windshield. Although such a proposal might 22 reduce the cost of the washing solutions used, the window 23 washer device would be complex and expensive since another 24 system of a second pump, second pipes, and second nozzles would be needed to supply the special washing solution in 26 isolation from the ordinary washing solution while 27 preventing the special washing solution from flowing into '7S ' ' 1297~ 5 1 the tank of the ordinary washing solution and also 2 preventing the ordinary washing solution from flowing into 3 the tank of the special washing solution.
4 There have been proposed in recent years window washer devices which additionally include pipes and nozzles 6 for washing glass members such as glass shields for 7 headlamps, a rear windshield, and the like. These recent 8 window washer devices have however suffered from the same 9 problems as described above.
The present invention has been made in an effort 11 to effectively eliminate the aforesaid drawbacks of the 12 conventional mechanism for supplying washing solutions to a 13 washer device for washing a glass sheet such as an auto-14 motive windshield.
SUMMARY OF THE INVENTION
16 It is an object of the present invention to 17 provide a simple and inexpensive mechanism for supplying 18 washing solutions to a glass washer device, the mechanism 19 being capable of preventing a special washing solution formulated to wash away pitch, tar, insects, and other 21 organic dirt from being mixed into a tank of an ordinary 22 washing solution and also preventlng the ordinary washing 23 solution from flowing into a tank of the special washing 24 solution.
The above object can be achieved according to the 26 present invention by providing a mechanism for supplying 27 washing solutions to an automotive glass washer device 12~76~5 1 having at least one wiper blade for wiping a glass member, 2 comprising at least one nozzle disposed near the glass 3 member in confronting relation thereto, a first tank for 4 containing a first washing solution for cleaning away oridinary dirt, a first pipe interconnecting the first tank 6 and the nozzle, a first pump disposed in the pipe for 7 supplying the first washing solution from the first tank to 8 the nozzle, a first switch for selectively actuating the 9 first pump, a second tank for containing a second washing solution different from the first washing solution and 11 containing a substance for cleaning away special dirt, a 12 second pipe interconnecting the second tank and the nozzle, 13 a second pump disposed in the pipe for supplying the second 14 washing solution from the second tank to the nozzle, a second switch for selectively actuating the second pump, a 16 first one-way valve disposed in the first pipe and coupled 17 between the nozzle and the first pump for only allowing the 18 first washing solution to flow from the first tank to the 19 nozzle, and a second one-way valve disposed in the second pipe and coupled between the nozzle and the second pump for 21 only allowing the second washing solution to flow from the 22 second tank to the nozzle.
23 The above and further objects, details and 24 advantages of the present invention will become apparent from the following detailed description of a preferred 26 embodiment thereof, when read in conjunction with the 27 accompanying drawings.
~2~'76~i 2 FIG. 1 is a plan view of a mechanism for 3 supplying a washing solution to a glass washer device 4 according to a preEerred embodiment of the present invention;
6 FIG. 2 is a plan view of a second washing 7 solution tank of the mechanism shown in FIG. l;
8 FIG. 3 is a front elevational view of the 9 instrumental panel of an automobile incorporating the mechanism of the present invention; and 11 FIG. 4 is a circuit diagram of a circuit for 12 actuating a pump associated with the washing solution tank 13 shown in FIG. 2.
FIG. 1 schematically shows a glass washer device 16 associated with a mechanism for supplying a washing 17 solution according to a preferred embcdiment of the present 18 invention. The glass washer device, generally denoted by 19 the reference numeral 10, is positioned in a front portion of an automobile 30 having a front windshield 4, and hence 21 serves as a front windshield washer device. The automobile 22 30 has an engine 2 disposed in a front engine compartment 23 3. A pair of laterally spaced wiper blades 5 is normally 24 disposed adjacent to the lower front surface of the windshild 4 and concealed in their entirety below an engine 26 hood (not shown). Nozzles 6, 7 are positioned at the lower 27 edge of the windshield 4 just in front of the wiper blades 1~976 ~5 1 5 and face the windshield 4. The nozzle 6 has two branch 2 inlets 6a, 6b, and the nozzle 7 has two branch inlets 7a, 3 7b.
4 A first tank 8 containing a washing solution (hereinafter referred to as a first washing solution) for 6 washing away ordinary dirt resulting from application of 7 muddy water to the windshield 4 is disposed in a lefthand 8 (as viewed in the direction of travel of the automobile 30) 9 portion of the engine compartment 3. The tank 8 is coupled to the nozzles 6, 7 through a pump 10 and a pipe 9. The 11 pump 10, when operated, supplies the first washing solution 12 to the nozzles 6, 7. The pipe 9 comprises a main portion 13 9c and two branch portions 9a, 9b. The main portion 9c has 14 an end connected to the outlet of the pump 10. The branch portions 9a, 9b have ends joined to the branch inlets 6a, 16 7a, respectively, of the nozzles 6, 7. The other end of 17 the main pipe portion 9c is joined to the other ends of the 18 branch portions 9a, 9b through a one-way valve 14. The 19 one-way valve 14 allows the washing solution to flow from the first tank 8 to the nozzles 6, 7, while preventing the 21 washing solution from flowing backwards from the nozzles 6, 22 7 to the first tank 8. When the pump 10 is actuated, the 23 first washing solution in the first tank 8 is supplied via 24 the main pipe portion 9c, the one-way valve 14, the branch pipe portions 9a, 9b, and the branch inlets 6a, 7a to the 26 nozzles 6, 7, from which the first washing solution is 27 ejected against the windshield 4.
-, . ... ~, .
~976~5 1 A second tank 11 containing an organic solvent 2 (hereinafter referred to as a second washing solution) 3 containing alcohol for washing away organic dirt such as 4 pitch, tar, insect bodies, and the like is disposed in a rightthand (as viewed in the direction of travel of the 6 automobile 30) portion of the engine compartment 3. The 7 second tank 11 is coupled to the nozzles 6, 7 through a 8 pump 12 and a pipe 13. The pump 12, when operated, 9 supplies the second washing solution to the nozzles 6, 7.
The pipe 13 comprises a main portion 13c and two branch 11 portions 13a, 13b. The main portion 13c has an end 12 connected to the outlet of the pump 12. The branch 13 portions 13a, 13b have ends joined to the other branch 14 inlets 6b, 7b, respectively, of the nozzles 6, 7. The other end of the main pipe portion 13c is joined to the 16 other ends of the branch portions 13a, 13b through a 17 one-way valve 15. The one-way valve 15 allows the washing 18 solution to flow from the second tank 11 to the nozzles 6, 19 7, while preventing the washing solution from flowing backwards from the nozzles 6, 7 to the second tank 11.
21 When the pump 12 is actuated, the second washing solution 22 in the second tank 12 is supplied via the main pipe portion 23 13c, the one-way valve .5, the branch pipe portions 13a, 24 13b, and the branch inlets 6b, 7b to the nozzles 6, 7, from which the second washing solution is ejected against the 26 windshield 4.
27 As illustrated in FIG. 2, a battery 16 is mounted , . , " i297f~.~5 1 on a battery holder 17 much larger than the size of the 2 battery 16, and held in place by an auxiliary stay 17a.
3 The battery holder 17 has a portion on which the battery 16 4 is placed and another relatively small portion 17b remote from the battery 16 and on which the second tank 11 and the 6 pump 12 are mounted. The tank 11 is located on the 7 relatively small portion 17b and should preferably be in 8 the form of a flexible plate of synthetic resin.
9 FIG. 3 shows an instrumental panel 18 of the automobile 30. The instrumental panel 18 supports various 11 meters or instruments 21 located forwardly of a steering 12 wheel 19. The steering wheel 19 is coupled to a steering 13 column covered with a steering column cover (not shown) 14 provided with a rod-shaped washer switch 20 having a wiper speed selection knob 20a on its outer end. The knob 20a is 16 angularly movable about the axis of the switch 20 and 17 selectively stoppable in a plurality of angular positions 18 corresponding to wiper stoppage, low-speed wiper operation, 19 and high-speed wiper operation. The wiper blades 5 are stopped or continuously moved by shifting the knob 20a into 21 one of the selectable positions. The washer switch 20 is 22 resiliently swingable toward the driver at the steering 23 wheel 19. While the washer switch 20 is being swung toward 24 the driver, the pump 10 is continuously actuated to supply the first washing solution from the first tank 8 to the 26 nozzles 6, 7 from which the first washing solution is 27 applied to the windshield 4. The knob 20a and the washer , . . .
lZ~645 1 switch 20 are functionally independent of each other.
2 A second washer switch 22 which is resiliently 3 rotatable clockwise is disposed on the instrumental panel 4 18 at a position leftward of the meters 21. While the second washer switch 22 is being in a rotated position, the 6 pump 12 is continuously operated to supply the second 7 washing solution from the second tank 11 to the nozzles 6, 8 7 from which the second washing solution is ejected against 9 the windshild 4.
As illustrated in FIG. 4, the second washer 11 switch 22 is electrically connected between one terminal of 12 a motor which operates the motor 12 and a positive power 13 supply terminal 23, the other terminal of the motor being 14 grounded.
The glass washer device 1 will operate as 16 follows:
17 When the automobile 30 runs in a rain, the knob 18 20a is turned to the low-speed operation position for 19 continuously actuating the wiper blades 5. If any muddy water dirt is applied to the windshield 4, then the washer 21 switch 20 is turned from time to time for ejecting the 22 first washing solution from the nozzles 6, 7 toward the 23 windshield 4. The above process of applying the washing 24 solution to the windshield is already known.
If pitch, tar, or other organic dirt such as 26 insect bodies is attached to the windshield 4 while the 27 automobile 30 is running in fine weather, first the second _ g _ " 12976 ~5 1 tank motor switch 22 is turned on. The second washing 2 solution is now supplied from the second tank 11 via the 3 nozzles 6, 7 to the windshield 4. Then, the wiper knob 20 4 is turned to the low-speed operation position, for example, to operate the wiper blades 5 for a desired time interval 6 thereby to wipe out the dirt deposit. Thereafter, the 7 first washer switch 20 is pulled toward the driver to eject 8 the first washing solution against the windshield 4 to 9 clean up the windshield 4.
The nozzles 6, 7 are connected to the first tank 11 8 and the second tank 11 through the pipes 9, 13, 12 respectively. Therefore, it is not necessary to provide 13 special nozzles for use with the respective first and 14 second washing solutions. As a result, the washer device 1 is simple in structure and inexpensive to manufacture. The 16 one-way valve 14 prevents the second washing solution 17 supplied from the second tank 11 to the nozzles 6, 7 from 18 flowing toward the first tank 8. The other one-way valve 19 15 prevents the first washing solution supplied from the first tank 8 to the nozzles 6, 7 from flowing toward the 21 second tank 8.
22 While the washer device 1 for use with the front 23 windshield has been described above, the principles of the 24 present invention are applicable to a window washer device which additionally includes pipes and nozzles for washing 26 the glass shields of head lamps or a rear windshield.
27 ~lthough there has been described what is at 12~76~5 1 present considered to be the preferred embodiment o~ the 2 present invention, it will be understood that the invention 3 ~ay be embodied in other specific forms without departing 4 from the spirit or essential characteristics thereof. The present embodiment is therefore to be considered in all 6 aspects as illustrative, and not restrictive. The scope of 7 the invention is indicated by the appended claims rather 8 than by the foregoing description.
Claims (4)
1. A mechanism in an automobile having an instrument panel and a battery, said mechanism for supplying washing solution to a glass washer device having at least one wiper blade for wiping a glass member, comprising:
at least one nozzle disposed near the glass member in confronting relation therewith;
a first tank for containing a first washing solution for cleaning away dirt which contains substantially no organic substance;
a first pipe interconnecting said first tank and said nozzle;
a first pump coupled to said first pipe for supplying said first washing solution from said tank to said nozzle;
a first switch for selectively actuating said first pump;
a second tank for containing a second washing solution which is formulated for cleaning away organic dirt;
a second pipe interconnecting said second tank and said nozzle;
a second pump coupled to said second pipe for supplying said second washing solution from said second tank to said nozzle the first and second pumps disposed adjacent to the first and second tanks respectively;
a second switch disposed on said instrument panel for selectively actuating said second pump, said second switch being electrically connected in series with said second pump and said battery:
a first one-way valve disposed in said first pipe and coupled between said nozzle and said first pump for allowing said first washing solution to flow only in the direction from said first tank to said nozzle;
a second one-way valve disposed in said second pipe between said nozzle and said second pump for allowing said second washing solution to flow only in the direction from said second tank to said nozzle; and said first and second one-way valves disposed adjacent said nozzle.
at least one nozzle disposed near the glass member in confronting relation therewith;
a first tank for containing a first washing solution for cleaning away dirt which contains substantially no organic substance;
a first pipe interconnecting said first tank and said nozzle;
a first pump coupled to said first pipe for supplying said first washing solution from said tank to said nozzle;
a first switch for selectively actuating said first pump;
a second tank for containing a second washing solution which is formulated for cleaning away organic dirt;
a second pipe interconnecting said second tank and said nozzle;
a second pump coupled to said second pipe for supplying said second washing solution from said second tank to said nozzle the first and second pumps disposed adjacent to the first and second tanks respectively;
a second switch disposed on said instrument panel for selectively actuating said second pump, said second switch being electrically connected in series with said second pump and said battery:
a first one-way valve disposed in said first pipe and coupled between said nozzle and said first pump for allowing said first washing solution to flow only in the direction from said first tank to said nozzle;
a second one-way valve disposed in said second pipe between said nozzle and said second pump for allowing said second washing solution to flow only in the direction from said second tank to said nozzle; and said first and second one-way valves disposed adjacent said nozzle.
2. A mechanism according to claim 1, further including a second nozzle disposed near said glass member in confronting relation thereto;
said first pipe having a branch portion connected between said one-way valve and said second nozzle; and said second pipe having a branch portion connected between said one-way valve and said second nozzle.
said first pipe having a branch portion connected between said one-way valve and said second nozzle; and said second pipe having a branch portion connected between said one-way valve and said second nozzle.
3. A mechanism according to claim 1, wherein said glass member is an automotive front windshield.
4. A mechanism according to claim 1, wherein said automobile has a steering column, and wherein said first switch is disposed on said steering column.--
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12187986U JPS6328063U (en) | 1986-08-08 | 1986-08-08 | |
| JP61-121879 | 1986-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1297645C true CA1297645C (en) | 1992-03-24 |
Family
ID=14822184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000543902A Expired - Fee Related CA1297645C (en) | 1986-08-08 | 1987-08-06 | Mechanism for supplying washing solutions to glass washer device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS6328063U (en) |
| CA (1) | CA1297645C (en) |
| DE (1) | DE3726369A1 (en) |
| GB (1) | GB2193627B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2253338B (en) * | 1991-03-02 | 1995-04-19 | David George Rouse | Improvements in or relating to vehicle screen wash arrangements |
| DE4116099B4 (en) * | 1991-05-17 | 2005-12-15 | Itt Automotive Europe Gmbh | Wiping and washing system, in particular for windows on motor vehicles |
| DE19517055B4 (en) * | 1995-05-10 | 2007-09-06 | Valeo Wischersysteme Gmbh | Spraying device for dispensing washing liquid onto a pane of a vehicle to be cleaned |
| DE102008052063A1 (en) * | 2008-10-17 | 2010-04-22 | Valeo Systèmes d'Essuyage | Process for treating vehicle windows and windshield wiper and washer system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB876889A (en) * | 1957-12-13 | 1961-09-06 | Rau Swf Autozubehoer | Improvements in windscreen-washing device for motor vehicles |
| DE2642987A1 (en) * | 1976-09-24 | 1978-03-30 | Rau Swf Autozubehoer | RESERVE TANK FOR ADDITIONAL LIQUID FOR WINDOW WASHER SYSTEMS FOR MOTOR VEHICLES |
-
1986
- 1986-08-08 JP JP12187986U patent/JPS6328063U/ja active Pending
-
1987
- 1987-08-06 CA CA000543902A patent/CA1297645C/en not_active Expired - Fee Related
- 1987-08-07 DE DE19873726369 patent/DE3726369A1/en active Granted
- 1987-08-07 GB GB8718712A patent/GB2193627B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3726369C2 (en) | 1991-01-03 |
| DE3726369A1 (en) | 1988-02-18 |
| GB2193627A (en) | 1988-02-17 |
| JPS6328063U (en) | 1988-02-24 |
| GB8718712D0 (en) | 1987-09-16 |
| GB2193627B (en) | 1990-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |