JPH091007A - Trigger actuated pump sprayer - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a trigger-operated pump spraying machine which can be operated simply and remotely without having to grasp a nozzle for setting a spray scale during spraying or after a discharging process. A trigger actuated pump sprayer is provided with a coaxial elongated stem extending into its discharge liquid barrel at its downstream end into a fixed discharge nozzle and at its relative end extending outwardly of the pump body. And an adjusting knob or handle that engages with the relative end of the stem and can be accessed outside the pump device unit to adjust the discharge method by rotating the stem or axially moving the stem with respect to the fixed nozzle. It is characterized by [Effect] All of the spray methods such as "off", "flow", and "spray" can be remotely adjusted without the need to grasp the fixed nozzle, simply by operating the knob rotary disc at hand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to trigger actuated pump sprayers, and more particularly to a sprayer having an adjustable spray adjustment device that can be operated remotely from its spray nozzle.

[0002]

2. Description of the Related Art Various types of trigger type pump sprayers have been developed for discharging a liquid from a container equipped with the trigger type sprayer. The various types of liquid dispensed include a number of household products such as window cleaners, oven cleaners, bath and tile cleaners, furniture cleaners, car cleaners and the like.

[0003]

The above-mentioned trigger type spray machine is typically "off", "spray" and "flow".
There is a sprayer nozzle that can adjust the spray by rotating the nozzle between different positions or by rotating to different spray positions. For this purpose, a rotating mechanism of the well-known type for generating a swirl of the liquid product is formed on the inner surface of the wall of the nozzle cap or on the opposite surface of the stem or other element cooperating with such wall. The nozzle cap is rotated about its axis to a selected discharge position without axial movement, or the nozzle cap is rotated to axially transfer the cap and spray cone of discharged liquid. Change the shape.

In many cases, the remaining amount of the product wets the discharge nozzle at the end of the discharge process, and when the worker adjusts the nozzle setting (selecting operation state), the worker's hand comes into contact with the liquid product. This is not desirable. In addition, it is difficult for the operator to adjust the nozzle settings during spraying, for example, from a divergent spray to a less divergent spray without having to spray it by hand.

It is therefore an object of the present invention to provide an adjustable spray adjustment device remote from the nozzle, and to grasp the nozzle at any time during the spraying operation, or after the expelling stroke to conveniently set the spray. It is to provide a trigger actuated pump sprayer that simplifies spray adjustment without a spray.

[0006]

In order to achieve the above object, the present invention is for the attachment of a sealing plug at the upper end of a container for fluid products, which extends across the sealing plug and has a pump chamber A tubular outlet member comprising means for forming a valve controlled inlet to said pump chamber and forming an axially extending valve controlled outlet passage through which said flow product is passed, and further a pump cylinder and said A pump body having a manual reciprocating pump piston forming a pump chamber; a trigger lever rotationally mounted to the pump body to actuate the piston; a central discharge orifice fixed to the outlet member to prevent rotation A nozzle cap mounted; and mounted along the axis within the outlet member and at least one discharge closed position and two selective discharge openings about the shaft. An elongated cylindrical stem that rotates without axial movement between a position and: a nozzle sleeve comprising a cylindrical sleeve in circumferential engagement with one end of the stem; and one end with the orifice. A coaxial rotation chamber, radial and tangential flow passages connected to the rotation chamber, and an external flow passage connected to the flow passage; and wherein the sleeve is on the opposite side of the internal flow passage from the one end, An end extending outward of the pump chamber body and the stem fixed to the relative end of the stem and rotating the stem around the central axis with respect to the nozzle cap, thereby shunting the external and internal flow paths. Provided with handle means for selectively entering the closed position and each of the open positions to align the outer and inner flow channel grooves; characterized by a trigger actuated pump sprayer That.

According to one embodiment of the invention, an elongated stem is surrounded by a stationary nozzle and extends along a drainage liquid barrel having its downstream end formed by a rotating mechanism cooperating with said nozzle. The stem can be rotated about its axis without axial movement by providing a handle that can be in the form of a knob wheel or other such attached at or near its relative ends, and the stem of the pump body can be rotated. You can approach from the outside. The stem can be manually rotated between the "cut", "flow" and "spray" positions by actuating the knob turntable away from the nozzle by means of known rotation mechanisms.

The cover plate surrounding the pump body has an opening through which the knob turntable projects to provide manual means on the outside of the cover plate.

According to another embodiment of the present invention, the elongate stem can be moved along its axis by manual rotation of the knob wheel to adjust the spray geometry corresponding to the fixed nozzle. A similar rotating mechanism may be provided at the downstream end of the stem as in the first embodiment, or the spray mechanism may be formed on the inner wall of the stationary nozzle facing the downstream end of the stem.

Marks can be attached to the knob rotary disc and the adjacent wall portion of the enclosure plate to indicate the selected spray system at a location remote from the fixed nozzle.

[0011]

The present invention will now be described with reference to the drawings, in which like reference numerals indicate corresponding parts throughout the several views. The trigger actuated pump sprayer of FIG. 1 is similar in construction and operation to U.S. Pat. No. 4,747,523. The trigger sprayer comprises a pump body 10 which can be attached to the neck 11 of a container product to be dispensed. The pump body is mounted in place with a threaded sealing plug 12, and an internal cylinder 13 of the pump body supports a tube holder 14 which suspends a dip tube 15 extending into the interior of the container. A gasket sealing device 16 surrounds the tube retainer and is inserted as shown between the lower edge of the pump body and the upper edge of the container neck. Inlet ball check valve 18
Or an inlet passage 17 valve controlled by another of the same kind
Form a cylinder 13.

The pump body laterally extends over the sealing plug 12 and includes a pump cylinder 19 and a manual reciprocating pump piston 21 which, together with the pump cylinder, forms a variable volume pump chamber 22. A piston return spring urges the piston outwardly of its cylinder, said cylinder also having an inlet 24 communicating with said inlet passage,
An outlet 25 is provided which communicates with an outlet passage 26 formed by an outlet liquid barrel or outlet chamber 27.

A trigger actuator 28 is hinged to the pump body in a suitable manner and includes a tap 29 which bears against the outer circular rim of the piston to oppose the force of the return spring of the pump. Perform manual operation.

The nozzle cap 32 has a rib 34 formed on the discharge liquid barrel around the downstream or front end of the discharge liquid barrel and an internal groove 33 in the cap.
Install by fitting over. The nozzle cap is fixedly mounted in place without rotation by use of an interference friction fit or some other suitable means.

The pump body is composed of an upper wall body 36 and a side wall body 3.
7 (only one shown) is surrounded by a shroud 35 with a closed rear wall 38 with a substantially horizontal wall portion 39 that rests on the bend of the operator's hand during pump spraying. The upper wall 36 has an extension 41 that projects into an open groove 42 formed in the nozzle cap, and reliably prevents rotation of the nozzle.

An elongated solid stem 43 extends coaxially within the drain liquid barrel along the drain passage. One end 44 of the stem extends into the inner cylindrical edge 45 of the nozzle and the opposite end of the stem extends outwardly through a suitable opening 47 in the pump body. The ring 48 formed on the stem provides a seal against leakage through the opening 47.

A handle 49, in the form of a knob wheel, knob or the like, is fixedly mounted in a suitable manner, such as by inserting a pin 51 into the end 46 of the stem, depending on the operator. The rotation of the handle rotates the stem 43 without moving it in the axial direction. FIG.
As shown in FIG. 6, the handle projects through an opening 40 located at the junction between the shrouds 36 and 38 for easy operator access.

The valve can be controlled by providing a suitable valve, for example a ring-shaped valve 50, which is fixed to the stem and bears against the inner wall of the discharge liquid barrel forming the valve seat.

The small parts of the rotating mechanism are the same as those disclosed in the above-mentioned US Pat. No. 4,706,888.
5 to 5 in detail. Nozzle cap edge 45
Comprises at least one, and in the illustrated embodiment, three equally spaced open grooves 52, the interior walls of which form internal flow passages. The end 44 of the stem has a plurality of equally spaced flutes 5.
3, and an external flow passage is formed on the outer periphery thereof. At least two such grooves are required, and although six such grooves are shown in the drawings, the number of such grooves may be 2 without departing from the invention.
A large number of grooves 53 can be provided without being limited to six.

The stem end wall 54 has a central recess 55.
And the opposing wall body 30 of the nozzle cap shown in FIG.
Has a central recess 55 forming a rotary chamber, and the wall has a discharge orifice 56 coaxial with the rotary chamber. A set of three equally spaced radial channels 57 and a set of three equally spaced tangential channels 58 are similarly formed in the end wall 54. The radial and tangential flow paths are shown in FIG.
5 to 5 are interleaved.

During operation, the stem 43 has a knob turntable 49.
Rotation in one direction or the other can rotate around that axis without axial movement. Thus, when the stem 43 is rotated in relation to the rotation of the fixed discharge nozzle cap, the flutes 52 and 53 are displaced as shown in the "OFF" position of FIG. 3, the discharge is stopped. It Continued relative rotation of the stem until groove 52 is aligned with groove 53 of radial flow path 57, the discharge enters the open position of the flow discharge shown in FIG. When the stem is rotated relative to the rotation of the stationary nozzle to align the groove 52 with the groove of the tangential flow path 58, the effluent enters the spray open position as shown in FIG. The product passing through the directional flow path is swirled in the rotating chamber and then discharged through the orifice 56 in the form of a fine spray.

As shown in FIG. 6, the upper wall 36 of the enclosing plate is marked with an M-letter, and an indication "spray" is attached to the knob rotating plate 49 together as a mark to attach the knob rotating plate. It can be rotated to show that the "spray" shape is selected. Of course, "cut" and "flow" marks can be applied in the same way.

The trigger actuated sprayer of FIG. 7 also has the same parts as in FIG. 1 and is identified by the same reference numerals, and FIG.
A similar rotary mechanism sub-component of
Edge 4 of the nozzle cap described with reference to FIGS.
5, except that the radial flow path 57 is excluded. Further, the relative end 46 of the stem is not rectangular or a perfect circle and is plugged into a complementary receptacle 61 formed in the shroud. And the end 4
6 is a thread 62 at the outer side, and the knob rotary disk 4
9 threadedly engage the inner threads. The relative surface of the knob turntable is supported by contacting the wall 63 which is bent in a substantially V shape of the shroud and the facing edge 64 of the receiver 61.

In this manner, the rotation of the knob rotary disc causes the spray to be contacted with the end wall body 30, for example, the end 54 of FIG. 7 without rotating the stem 59 from the position of FIG. 7 to the position of FIG. 8 from the complete spraying state shown in FIG.
4 can be adjusted to a relatively small diffusion spray spaced from the end wall 30. In FIG. 7, the vertical groove 52 is aligned with the tangential flow path 58 and the position where the rotary chamber 55 shown in FIG. 3 is closed by the opposed end wall body 30 of the nozzle cap, and the rotary chamber is passed through the discharge passage. The product flowing into is swirled and then the discharge orifice is ejected as a wide diffusion spray. At the position of FIG. 8 where the stem 59 is moved (not rotated) axially in the rearward direction away from the opposed end wall of the nozzle cap, the rotation chamber 55 partially cancels the effect of the tangential flow passage. The liquid is ejected from the discharge orifice 56 in the form of a spray cone having a relatively small diffusion. Distance for moving the spray shape from the full diffusion spray state of FIG. 7 to the spray state of relatively small diffusion until the spray is ejected from the opposed end wall body 30 of the fixed nozzle as a flow substantially from the ejection orifice. Adjust by.

In this way, various spray adjustments can be made, and a mark 64 representing a gradually expanding arc 64 is formed.
(FIG. 11) can be attached to the wall 63 of the shroud, and a lever 65 or other such can be formed on the knob plate 49 to show various spray shapes chosen by the operator. it can.

According to another embodiment shown in FIG. 9, the elongated stem 66 does not include a groove, flow passage, or rotary chamber formed at its downstream end, but rather its end wall. There is no irregularity at the downstream end except that it has a central detent or tip 67 that connects to the discharge orifice 56 at the frontmost (downstream) adjustment position (not shown) of the stem 66 to close the discharge. Then, as shown in FIGS. 9 and 10, the rim 45 includes a set of vertical flow paths 68, and a set of tangential flow paths formed with the central rotation chamber 71 in the opposing wall body of the nozzle cap. Connect to 69.

In this way, the knob is squeezed from the "off" position where the tip 67 of the stem is connected to the discharge orifice so that the stem moves backward (to the right in FIG. 9) until the tip 67 moves out of the discharge orifice. When the turntable is rotated, the product is pumped through a discharge orifice in the form of a diffuser spray that spreads as rotation is induced by passage through the tangential flow path. As the downstream end of the stem is progressively retracted from the rotating mechanism formed in the opposing wall of the nozzle, the spray spread of the product becomes smaller and smaller due to the degree of receding and ejects through the discharge orifice.

In the embodiment of FIG. 9, the stem 66 can be rotated about its axis while being moved along its axis without departing from the invention. With such a mark, the knob rotary disk is fixed to the stem, and the stoppering devices at 46 and 61 are removed, while the rotary disk is separated from the rear wall of the knob rotary disk at the edge 64 by a sufficient distance. It was moved axially with a stem, such as in a tube stem.

Further, in FIG. 9, the grooves 68 forming the flow channels can be formed alternately at the ends 44 of the stem without departing from this invention.

[0030]

As described above, according to the present invention, the remote knob rotary disk prevents the operator's hands from being contaminated with the spray liquid product, and thus "stops", "flows", "sprays", and further the size of diffusion. Can be adjusted with the nozzle fixed.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a trigger actuated pump sprayer according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of the downstream end of an elongate stem with a rotating small piece formed thereon.

FIG. 3 is a diagram showing a position of the stem during manual rotation.

FIG. 4 shows a “flow” position.

FIG. 5 shows the “spray” position.

6 is a plan view of a knob adjusting turntable related to the upper part of the shroud of FIG. 1. FIG.

FIG. 7 is a view similar to FIG. 1, showing another embodiment of the present invention.

FIG. 8 is a view similar to FIG. 1, showing the stem axially away from the stationary nozzle and in a selected “open” discharge position.

FIG. 9 is a vertical cross-sectional view of components similar to FIG. 8 in a discharge “open” position of a trigger sprayer according to another embodiment of the present invention.

10 is an elevational view showing a rotating small component formed on the inner wall of the fixed nozzle of FIG.

FIG. 11 is a top perspective view of a knob adjusting turntable and an adjacent portion of a surrounding plate showing another nozzle adjusting scale mark.

[Explanation of symbols]

 10 Pump Main Body 11 Neck 12 Threaded Sealing Plug 13 Internal Cylinder 14 Tube Retainer 15 Immersion Tube 16 Gasket Sealing Device 17 Inlet Passage 18 Inlet Ball Check Valve 19 Pump Cylinder 21 Manual Reciprocating Pump Piston 22 Variable Volume Pump Chamber 24 Inlet 25 Outlet 26 Discharge Passage 27 Discharge Liquid Barrel / Tubular Exit Chamber 28 Trigger Actuator 29 Striking 30 Opposing Wall Body 31 Outer Edge 32 Nozzle Cap 33 Inner Groove 34 Rib 35 Enclosure Cover 36 Upper Wall 37 Side Wall 38 Closed Rear Wall Body 39 Almost horizontal wall body 40 Opening 41 Extension 42 Open groove 43 Elongated solid stem 44 One end of the above 45 Inner cylindrical edge 46 43 Relative end of 43 47 Appropriate opening 48 Ring 49 Handle 50 Ring valve 51 Pin 52 Equal spacing open groove 53 Equal spacing Vertical groove 54 End wall body 55 Central recess (rotating chamber) 56 Discharge orifice 57 Radial flow channel 58 Vertical flow channel 59 Elongated stem 61 Complementary receiver 62 Position of external thread of 46 63 Wall body 64 Opposed Edge 65 Lever 66 Elongate stem 67 Center detent 68 Longitudinal flow path 69 Tangent flow path

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ronald. Wordsworth United States. California. 93428. Cambria. Astor. Avenue. 1521

Claims (17)

[Claims] 1. Attachment of a closure at the upper end of a container for fluid products, comprising means extending across the closure to form a pump chamber and a valve control inlet to the pump chamber, and A tubular outlet member forming a valve controlled discharge passage extending along an axis, and a pump body having a manual reciprocating pump piston for passing the flow product therethrough and forming a pump cylinder and the pump chamber; A trigger lever rotatably attached to the pump body to actuate the piston; a nozzle cap having a central discharge orifice and fixedly attached so as not to rotate at the outlet member; Elongate mounted along the axis for rotation without axial movement between at least one discharge closed position and two selective discharge open positions about said axis A cylindrical stem, comprising: a nozzle sleeve having a cylindrical sleeve in circumferential engagement with one end of the stem; a rotary chamber having one end coaxial with the orifice and a radial direction connecting to the rotary chamber; And a tangential flow path, and an external flow path connected to the flow path; and the sleeve is an internal flow path, and an end portion that is on the opposite side of the one end and extends outward of the pump chamber body. Fixed to the relative end of the stem, rotating the stem about the central axis with respect to the nozzle cap to selectively place it in the closed position, which interrupts the external and internal flow paths; And a handle means selectively inserted into each of the open positions for matching the internal flow channel grooves. 2. An enclosing plate surrounding the pump body, wherein the handle means extends outward through an opening of the enclosing plate so as to be accessible outside the enclosing plate. The pump sprayer according to claim 1. 3. The pump sprayer according to claim 1, wherein the rotating means comprises a knob rotating disk. 4. The pump sprayer according to claim 2, wherein the rotating means comprises a knob rotating disk. 5. The enclosure plate is a substantially flat plate, and includes an upper wall body joined to a rearwardly inclined wall body, and the enclosure plate is arranged at a joint portion between the both wall bodies. The pump sprayer according to claim 4, wherein 6. The pump sprayer according to claim 4, wherein adjacent wall bodies of the knob rotary plate and the enclosure plate are provided with scales for fixing the open and closed positions by rotation of the knob rotary plate. 7. The pump sprayer according to claim 6, wherein the mark on the knob rotary plate is a lever. 8. A means for mounting a closure at the upper end of a container of fluid product, comprising means extending across the closure to form a pump chamber and a valve control inlet to the pump chamber, and A tubular outlet member forming a valve controlled discharge passage extending along an axis, and a pump body having a manual reciprocating pump piston for passing the flow product therethrough and forming a pump cylinder and the pump chamber; A trigger lever that is rotatably attached to the pump body and operates the piston; and fixedly attached to the outlet member so as not to rotate,
A nozzle cap having a cylindrical sleeve extending into the outlet member from a nozzle end wall containing a central discharge orifice; and an elongated member attached to the outlet member along the axis for axial movement without rotation. A cylindrical stem ;; one end of the stem extends into and engages the sleeve; and the one end creates a swirl of the flow product so that the product exits the orifice. Providing means for ejecting as a spray and flow passage means between the one end and the sleeve and connected to the vortex generating means; And moving the one end away from the end wall to provide a progressively changing spray shape with respect to the swirl of the flow; The end of the stem on the side extends toward the outside of the pump body, and the handle means that meshes with the relative end moves the stem along the axis with respect to the nozzle cap end wall body so as to perform the predetermined movement. Providing a progressively varied spray shape; a trigger actuated pump sprayer. 9. An enclosure plate surrounding the pump body, wherein the handle means extends outwardly through an opening in the enclosure plate and is accessible outside the enclosure plate. Item 8. A pump sprayer according to item 8. 10. The pump sprayer according to claim 8, wherein the handle means comprises a knob rotary disk. 11. The pump sprayer according to claim 9, wherein the rotating means comprises a knob rotating disk. 12. The pump sprayer according to claim 11, wherein the relative end of the stem is capped with the shroud to allow the stem to move in the axial direction without rotation. 13. The pump sprayer according to claim 12, wherein a relative side of the knob turntable is in contact with and supported by the surrounding plate. 14. A means for mounting a closure at the upper end of a container for fluid products, comprising means extending across the closure to form a pump chamber and a valve control inlet to the pump chamber, and the shaft. A tubular outlet member forming a valve controlled discharge passage extending along the pump body, the pump body comprising a reciprocating pump piston having means for passing the flow product therethrough and forming a pump cylinder and the chamber; A trigger lever that is rotatably attached to the pump body and operates the piston; and fixedly attached to the outlet member so as not to rotate,
A nozzle cap having a cylindrical sleeve extending into the outlet member from a nozzle end wall containing a central discharge orifice; and an elongated member attached to the outlet member along the axis for axial movement without rotation. And a means for causing the end wall of the nozzle to generate a swirl of the fluid product and eject the product as a spray from the orifice, and to connect the swirl generating means between the one end and the sleeve. Flow-passing means; -providing means for engaging said one end with said discharge orifice in a discharge "cut" position, said one end progressively moving away from said end wall, Providing a progressively varying spray shape from a wide diffuse spray to the swirl; and an end of the stem opposite the one end in an outward direction of the pump body. A trigger actuated pump sprayer which extends and causes handle means to engage the relative ends to move the stem from the "cut" position along the axis relative to the nozzle cap end wall. . 15. An enclosing plate surrounding the pump body, wherein the handle means extends outwardly through an opening in the enclosing plate and is accessible on the outside of the enclosing plate. Item 15. A pump sprayer according to Item 14. 16. The pump sprayer according to claim 14, wherein the handle means comprises a knob rotary disk. 17. The pump sprayer according to claim 15, wherein the rotating means is a knob rotating disk.