US1978634A - Windshield cleaner valve action - Google Patents

Description

` Ot. 30, 1934. HUEBER 1,978,634

WINDSHIELD CLEANER VALVE ACTION Filed lay 16, 1932 3 Sheets-Sheet 41 22 aww/nto@ '1 g Henry Hueber,

OcL30, 1934. H HUEBR wINDsHIELD CLEANER VALVE ACTION Filed May 16, 1952 3 Shams-Sheet` 2 INVENTOR Henry Huf/bm BY ATTORNEYS H. Huizer-:R l

WINDSHIELD CLEANER VALVE ACTION 3 SheetS--Sheet '3 Filed May le, 1952 BY @mvwfz ATmRNEJ/,s

Patented Oct. 30, 1934 UNITED ISTATES WINDSHIELD CLEANER VALVE ACTION Henry Hueber, Buffalo, N. Y., assignor to Trico Products Corporation, Buffalo, N. Y.

Application May 16, 1932, Serial N0. 611,744

17 Claims. Cl. 121-437) This invention relates to the valve action for fluid operated motors and one which is particularly adapted for embodiment in the motors of fluid pressure or suction operated windshield cleaners.

Valve actions for suction operated windshield cleaners are more or less delicate in their makeup due to the lightness of the motor, and therefore it is desired to simplify the construction and w arrangement of the various parts of the action so as to facilitate their assembly and improve their operation.

The present invention has for its purpose to render exceedingly simple the construction of the valve action parts to such an extent as to facilitate and expedite the various steps in assembly and at the same time make the action practical and efficient in service.

In the drawings:

Fig. l is a front elevation of the preferred embodiment of the present invention embodied in a windshield motor and depicting the valve action approximately in its dead center position, about to be thrown or snapped so as to move the valve in a clockwise direction on its seat.

Fig. 2 is a vertical transverse section through the motor and valve action with the parts of the action being disposed in the position shown in Fig. 1.

Fig. 3 is a perspective View of the motor showing the parts of the valve action in disassembled `relation so as to more clearly illustrate their design and construction and the method or manner of assembly.

Fig. i is a sectional. view on about line 4-4 of Fig. 2 but showing the valve action after the valve has been snapped to its position.

Fig. 5 is a perspective view of a modified construction, showing the valve action in disassembled relation.

Fig. 6 is a view of a windshield cleaner showing the valve action in section.

'l is a front elevation of the valve action in more or less diagrammatic form.

Fig. 8 is a side elevation of a windshield cleaner motor embodyinga still further modication in the valve action, with the cover of the valve chamber removed.

Fig. 9 is ,a plan view of the motor with portions broken away for clearness in illustration.

Fig. l0 is a disassembled view of the parts of the modified valve action or mechanism.

Fig. 11 is a sectional view about on line 11--11 of Fig. 9.

Referring more in detail to the accompanying drawings, the numeral 1 designates the casing of the windshield cleaner motor, herein depicted as being of the vane type and having disposed therein the vane type piston 2 which is fixed to a shaft 60 3 having one end adapted for connection to a wiper operating arm (not shown) and its opposite end extending into a valve chamber 4, which latter maybe enclosed by a cover 5 secured in any suitable manner to the motor casing. The lastmentioned end of the shaft is illustrated as having'an axial bore 6 opening between a pairv of lugs 7 which project from the end of the shaft in the direction of its axis. This shaft serves as the actuator for the valve mechanism now to be described.

Pivoting in the bore 6 is a pintle Bcarried by a kicker 9, the latter also having a lug 10 extending between a pair of shoulders 11 on the valve 12.

The valve oscillates back and forth on a seat 13 75 so as to connect the suction port 14 alternately with the two end ports 15 by which the source of suction, communicating through the nipple 16 to the port 14, is connected with the casing rst at oneside of the piston and then at the opposite side thereof, the valve when connecting one port 15 opening the companion port to the atmosphere, so as to obtain thedesired pressure differential for driving the vane piston back and forth in its casing.

The valve 12 may for convenience in arrangement be pivoted on the shaft 3, and the connections between the lugs 7 and the kicker 9 and between the lug 10 and the valve shoulders 11 embody sufficient play or lost motion so that throughout the major portion of its stroke the vane piston has no effect on the kicker, but as the piston approaches a terminal position the lugs '1 will engage the kicker 9 at points on opposite sides of the pntle 8 and move the kicker a predetermined extent, or approximately to a position shown in Fig. 1, before the lug 10 engages one'of the shoulders 11. From this position, or slightly beyond such position, which may be referred to as a dead center position, the kicker along with the valve will be quickly snapped so as to shift the valve from one operative position to its other operative position. This quick shifting of the valve is effected through the resilient means consisting of a spring 17 having one end connected to the kicker, as through an anchoring frame 19, and the opposite end to a xed point.

The kicker is provided, on the side of the pintle 3 opposite from the lug 10, with a seat or notch 18 in which is engaged the anchoring frame or connection member 19, the frame receiving the kicker and having a depression 20 in which one end of the spring 1'? engages.

To maintain the valve 12 under slight pressure so as to insure firm seating Contact over the ports 14 and 15, there is provided a pressure plate 21 which is hung at one end on a fixed post 22 and has its opposite end provided with an opening 23 to receive the shaft and freely bear upon the rib 24 ofthe valve. A bracket part 25 on the pressure plate 21, adjacent the suspension of the latter on the post 22, provides an anchorage for the fixed end of the spring 17, and in this connection it will be noted that the spring 17 serves in the dual capacity in the operation of the mechanism, first, to quickly shift the kicker 9 and, second, by reason of its connection with the bracket part 25, to exert a pull on the suspended pressure member 21 tending to rotate the pressure member about the support 22 in va counter-clockwise direction with respect to Fig. 2 and thereby urge such pressure member toward the valve. In other words, this spring force tends to swing the pressure member toward the valve and thereby serves to hold the valve under resilient or yielding pressure. Because of this action of the spring the pivotal connection of the pressure member 21 is such as to allow a slight pivoting movement toward the valve. The bracket part 25 may be stamped from the pressure member so as to provide an opening 26 in which the post 22 is engaged.

A slot 27 is provided in the pressure member 21 through which the lug 10 extends for co-action with the valve shouldersll. The pressure member 21 is further provided with a pair of limit shoulders 28 between which the valve 12 moves and co-acts to limit its movement and determine its two operative positions.

In operation the shaft-or actuator 3 is oscillated back and forth and during such oscillatory movement the actuator lugs 7 engage the opposite sides of the kicker 9 and move the latter from the position indicated by the dotted showing 29 in Fig. 4 to a position slightly beyond the dead center position shown in Fig. 1, such movement placing the spring 17 under tension so that upon a slight additional movement the spring device (17. 19) will function to accelerate the movement of the kicker in a clockwise direction (Fig. 1) and during this acceleration the kicker will carry with it, through the cooperation of the lug 10 with one of the shoulders 11, the valve to its other operative position.

During this movement the frame 19 has relative pivotal movement in the notch 18, and this relative pivotal action is arrested by one or the other of the shoulders 30 coming into contact with the kicker 9 at one or both sides of the pintle 8, thus serving to limit and restrict the degree of movement of the kicker, and consequently the movement imparted to the valve 12. The sides of the frame 19 may be arched to receive the shaft 3, as indicated at 31 in Fig. 3. These arched portions may likewise contact the shaft to limit the kicker movement. This is shown more clearly in the modified showing of Fig. 7.

The pressure member 21 constitutes a combined pressure and stop member, by reason of the lugs 28, and this member is held yieldingly against the valve 12 by reason of the dual funcmaintaining the frame 19 in its seat, the kicker in its bearing, and the pressure member on its suspension besides accelerating the kicker in its movements and pressing the valve to its seat through the instrumentality of the pressure member.

In the modied action shown in Figs. 5, 6 and 7 the wiper shaft 3' is provided with a pair of shoulders 7 formed by cutting out a segmental portion of the shaft and constituting in effect the equivalent of the shoulders or lugs 7. The valve 12' has the lugs 11' carried by the valve portion 24. This necessitates a slight modification 0f the combined pressure and stop member 21', and especially with reference to the disposition of the stops 28 so as to cooperate with the valve lugs 11' in limiting the valve movement. This pressure member 21 may also have its bracket part 25 in the form of a web so as to give greater reinforcement for the anchorage of the spring 17'.

The kicker 9' has a valve engaging lug 10' disposed adjacent the spring engaging notch 18' so as to be disposed between the valve lugs l1', the pintle portion 8 engaging in the axial bore 6 of the shaft 3. The spring anchoring frame 19' engages in the notch 18' and may have its shoulders 30 engage the kicker 9', or the frame portion 31 may be shaped to engage the shaft 3 and thereby avoid contact of the shoulders 30' with the kicker.

This modified form operates in the same general manner as the valve action described in Figs. 1 through 4, the shoulders 7' engaging the kicker 9' to shift the spring seat or notch 18 past dead center so that the spring tension will accelerate the movement of the lug 10' as it engages the valve lug 11' to effect a quick shifting of the valve on its seat 13.

Figs. 8 through 11 depict a further modification wherein the actuator or shaft 3" is provided with a diametral cut-out so as to form the spaced lugs or shoulders 7". In order to define the proper extent of kicker movement the kicker 9" is provided adjacent its pintle 8" with a segmental hub enlargement 32, the opposite faces or shoulders of which are designated to be contacted with alternately by the lugs or shoulders 7" as the actuator is oscillated back and forth. The.

resilient means, in any of the forms of the invention herein shown, will tend to hold the pintle against unauthorized displacement since any displacing movement of the kicker will of necessity place the resilient means under increased tension. Unauthorized displacing movement of the kicker will be positively prevented by reason of an extension 33 which will contact with the valve chamber cover, indicated generally at 5 in Fig. 2, if such movement is initiated.

The valve 12" is provided with a play connection, as by the shoulders or lugs 11" on one of the parts engaging with the shoulders or opposite faces of the kicker lug 10". The stops 28" are in the form of shouldered projections on the motor casing 1" in lieu of being carried by the valve pressure or seating member 2l", and in order to silence the engagement of the valve lugs 11" with such shouldered extensions 28", vthe latter are faced with a fiber or other soft layer 34. In the particular illustration this facing is provided by extending the gasket 35 which is found between the companion sections of the motor casing.

The spring 17" is connected to the kicker by means of the frame 19" which has its converging shoulders 30" designed to engage the opposite faces of the kicker, as has been previously set forth in connection with the disclosures in Figs. 1 through 7, the arched portions 31" having sui'iicient clearance to avoid the actuator or shaft 3". When either one of the shoulders 30 is engaging the' kicker, as illustrated in Figs. 8 and 11, such kicker is prevented from further movement except against the tensioning action of the spring 1'1" which may occur to absorb the force of the impact of'the framed shoulder 30" against the. kicker. It will be noted from Fig. 11 that the lug 10", together',` with the arresting shoulder 28", serves to hold the interposed valve lug 11 against movement, except, for a slight clearance which is desired for greater emclency in operation.

What is claimed is:

1; In a windshield cleaner motor having a casing and piston relatively movable under a fluid pressure differential, and a shaft oscillated by the movable one of -said elements; said shaft having an axial bore in one end with a pair of spaced shoulders projecting in an axial direction, said casing having a valve seat with ports therein .actuated by the spaced shoulders on said shaft for a limited movement, said shoulders having a play connection with the` kicker and said kicker having a play connection with the valve, said kicker having a part movable back and forth from one side to the other side of the plane including said fixed part and the shaft, and spring means connecting the kicker part to the valve seating member and functioning dually ilrst to move the kicker subsequent to an initial movement of the kicker by the shaft shoulders, and second to excrt a pressure on the valve seating member for urging the valve to its seat.

2. A valve mechanism for fluid motors, comprising a valve seat, a valve thereon movable back and forth between two positions, a pressure member pivotally mounted on a fixed part of the casing and having a part movable to urge the` valve to its seat, a kicker operatively associated with the valve and movableback and forth between two operative positions for actuating the valve, means for imparting movement to the kicker, and means including a resiiient member connected at one end to the pressure member and at `its opposite end to thekicker for movingvthe latter after a movement by said first means to a predetermined position, said resilient member acting on the pressure member to move it about its pivotal mounting and urge said part thereof against the valve.

3. A valve mechanism for uid motorscomprising a valve movable back and forth between two positions on itsV seat, a kicker foroperating the valve, an actuator for the kicker having a play connection therewith permitting independent movement of the kicker, means including a resilient member connected to the kicker under an urge and acting to accelerate the movement of the kicker following a predetermined initial movement imparted to the kicker by the actuator, said actuator having an opening and said kicker having a pintle pivotally engaged in the opening of the actuator `and held displaceably `therein by said resilient means.

4. A valve mechanism for fluid motors comprising a valve movable back and forth between two positions on its seat, a kicker for operating the valve, an actuator for the kicker having a play connection therewith permitting independent movement of the kicker, means including a resilient memberconnected under an urge to the kicker and acting lto accelerate the movement of the kicker following a predetermined initial movement imparted to the kicker by the actuator, said valve havingvspaced parts and said kicker having a lug extending between said parts to engage the same and move the valve, said actuator havingan opening and said kicker having a pintle pivoting in the actuator opening, and said resilient member acting to retain the lug and pintle in operative relationship with the valve and actu'- ator respectively.

5. A valve mechanism `for fluid motors, coniprising a valve movable back and forth on a seat between two positions, a kicker for operating the valve, an actuator for the kicker having a play connection therewith for permitting limited independent movement of the kicker, and accelerating means for accelerating the kicker after a prede-v termined movement thereof by the actuator, said accelerating means comprising an open frame pivoting on the kicker for bodily movement therewith and having a pair of stop shoulders alternately engageable with the kicker, and spring means acting on the frame for urging the kicker toA move independently of the actuator.

6. A valve mechanism for fluid motors, comprising a valve movable back and forth on a seat between two positions, a pivotally mounted kicker for operating the valve, an actuator for the kicker', and means for moving the kicker after a predetermined movement thereof by the actuator, said kicker being operatively connected to the valve, said moving means comprising an open frame pivoting on the kickerrand having spaced side parts between which the kicker oscillates, and a spring anchored at one end and connected to the frame for acting on the kicker to provide such movement, said kicker alternately engaging said spaced parts to limit the kicker movement.

7. A valve mechanism for` uid motors, comprising a valve movable back and forth on avseat between two positions, a kicker operatively associated with the valve for operating the valve, an actuator for the kicker, means including a resilient member for moving the kicker after a predetermined movement thereof by the actuator, and a valve pressure member movably mounted on a xed part of the motor casing for holding the valve to its seat, said pressure member pivoting about said fixed part and adapted for movement toward and from the valve seat for urging the valve toward its seat, said resilient member being connected to the pressure member and actingthereon to` place the valve under a yielding pressure.

8. A valve mechanism for fluid motors, comprising a valve movable back and forth on a seat between two positions, a kicker for operating the valve, an actuator for the kicker, means including a resilient member for moving the kicker after a predetermined movement thereof by the actuator, and a valve pressure member for holding the valve to its seat, said pressure member receiving support fromv amounting part and adapted for movement thereon toward and from the valve seat for urging the valve toward its seat, stop means cooperating with the valve for determining' the two positions of the valve, said resilient member being connected to the pressure member acting thereon to urge the valve toits seat.

9. A valve mechanism for fluid motors,'com prising a valve movable back and forth on a seat iso between two positions, a kicker for operating the valve, an actuator for the kicker, means for moving the kicker after a predetermined movement thereof by the actuator, and a valve pressure member for holding the valve to its seat, said pressure member receiving support from a mounting part, said moving means comprising a spring connected to the pressure member to place the latter under a yieldable urge toward the valve, a connection member connecting the spring to the kicker, said kicker having pivotal support, and said connection member having means for arresting the pivotal action of said kicker.

l0. A valve mechanism for fluid motors, comprising a valve movable back and forth on a seat between two positions, a kicker for operating the valve, an actuator for the kicker, and means including a resilient member for moving the kicker after a predetermined movement thereof by the actuator, a valve pressure member having a connection with a mounting part and bearing on the valve to urge it to its seat, said kicker being pivotally mounted and having a part extending away-"from the pressure member connection, said pressure member adjacent its connection having a bracket part, said resilient member connecting said bracket part to said kicker part to provide the aforesaid movement of the kicker.

1l. A valve mechanism for uid motors, comprising a valve movable back and forth on a seat between two positions, a kicker for operating the valve, an actuator for the kicker, means for moving the kicker after a predetermined movement thereof by the actuator, a valve pressure member having a connection with a mounting part and bearing on the valve to urge it to its seat, said kicker being pivotally mounted and having a part extending away from the pressure member connection, said pressure member adjacent its connection having a bracket part, said moving means connecting said bracket part to said kicker part to provide the aforesaid movementof the kicker, said kicker having a lug establishing an operative connection with the valve between spaced shoulders thereon, and limit stops cooperating with the valve to determine the two positions of the valve.

12. A valve mechanism for fluid motors, comprising a valve movable back and forth on a seat between two positions, a kicker for operating the valve, an actuator for the kicker, and means including a resilient member for moving the kicker after a predetermined movement thereof by the actuator, a valve pressure member having a connection at one end and bearing at its opposite end on the valve to urge the latter to its seat, said kicker being pivotally mounted and having a part extending away from the first end of said pressure member, said pressure member adjacent its connection having a bracket part, said moving means connecting said bracket part to said kicker part to provide the aforesaid movement of the kicker, said resilient member holding both the pressure member on its connection and the kicker on its axis and actuating both during the operation of the valve action.

13. A valve mechanism for iiuid motors, comprising a valve movable back and forth on a seat between two positions, a kicker for operating the valve, an actuator for the kicker, and means for moving the kicker after a predetermined movement thereof by the actuator, said kicker pivoting about an axis and said actuator having spaced shoulders, said actuator having an axial opening in which said kicker is pivoted between said shoulders, said shoulders engaging the kicker to move the same subsequent to a preliminary idling movement on the part of the shoulders;

14. In a fluid pressure motor having a casing and piston relatively movable under a fluid pressure differential, `and a shaft oscillated by the movable one of said elements; said shaft having an axial bore in one end with a pair of shoulders, said casing having a valve seat with ports therein leading into the casing at opposite sides of the piston, a valve movable on the valve seat from one operative position to another operative position for operatively connecting the ports to a source of uid pressure, a valve seating member having a pivotal connection at one end and bearing at its opposite end on the valve to hold the latter on its seat, said member having an opening for passing about the shaft, a pair of stops cooperating with a part of the valve for arresting and dening the two operative positions of the latter, a kicker having a stem pivotally received in the bore of the shaft and adapted to be engaged and actuated by the shoulders thereof for a limited movement, said shoulders having a play connection with the kicker and said kicker having a play connection with the valve, and means including a resilient member connecting the kicker part to the valve seating member whereby the valve seating member will be moved about its pivotal connection to urge the valve to its seat and said kicker will be moved subsequent to an initial movement by the shaft shoulders.

l5. A valve mechanism for uid motors, comprising a valve movable back and forth on a seat between two positions, a kicker for operating the valve, an actuator for the kicker. means for moving the kicker after a predetermined movement thereof by the actuatorI and a valve pressure member for holding the valve to its seat, and stop means cooperating with the valve for determining the two positions of the valve, said moving means extending between the kicker and the pressure member and acting on the pressure member to urge the valve to its seat and to cooperate with said stop means in holding said valve in its positions.

16. A valve mechanism for fluid motors, comprising a valve movable back and forth on a seat between two positions, a valve pressure member having a pivotal mounting at a point removed from the valve and having a part bearing on the latter, and means for snapping the valve from one to the other of its positions, said means including a valve snapping spring anchored on the pressure member and tending to move it about its pivotal mounting to urge the valve to its seat.

17. A valve mechanism for fluid motors comprising a valve movable back and forth on a seat between two positions, means for so moving the valve, a pressure member having a detachable connection at one end and bearing at its opposite end on the valve, and means including a resilient member connected to the pressure member and acting dually to hold the pressure member against displacement from its connection and also tend-l

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