CN1284633C

CN1284633C - Liquid sample reservoir suitable for use with a spraying apparatus

Info

Publication number: CN1284633C
Application number: CNB028064186A
Authority: CN
Inventors: S·C·P·约瑟夫; M·F·道格拉斯
Original assignee: 3M Innovative Properties Co
Current assignee: 3M Innovative Properties Co
Priority date: 2001-03-14
Filing date: 2002-03-14
Publication date: 2006-11-15
Anticipated expiration: 2022-03-14
Also published as: CN1561264A; CA2441306C; GB0106199D0; DE60204546T2; ES2241996T3; JP4173739B2; EP1368129A1; ATE297258T1; CA2441306A1; DE60204546D1; WO2002072276A1; PL363641A1; JP2005502444A; KR20040051576A; EP1368129B1; PL200806B1; KR100889103B1

Abstract

A single use, disposable reservoir (30) of low volume for use in conjunction with a spray gun (1) for spray painting small areas, for example 'spray out' cards for colour matching a paint mix for spray painting a vehicle. The reservoir (30) is in the form of a syringe body (32) with a plunger (34) having a sealing member (54) slidable within the body (32) for drawing paint (57) into the body (32) via an open end (38). The body (32) has an aperture (42) adjacent to a closed end (36) and the plunger (34) can be moved to position the sealing member (54) between the aperture (42) and closed end (36) for releasing a partial vacuum created when the paint (57) is drawn into the body (32) and allow the paint (57) to be withdrawn, in use, when the reservoir (30) is connected to a spray gun (1) without actuating the plunger (34). In other embodiments, the reservoir (60;80) comprises a concertina-type body (66) or a pipette body (82).

Description

The suitable liquid sample container that uses with a spraying equipment

Technical field

The present invention relates to container.More particularly, but be not to relate to a container that is suitable for the fluid sample reservoir that uses with the equipment that sprays a liquid uniquely.More specifically, but be not uniquely, it relates to disposable one described liquid sample container.

Background of invention

For example the spray gun that uses in the carbody shop is well-known, and it comprises a container and a nozzle of the liquid that storage will be scattered, and this nozzle under pressure, for example scatters this liquid usually under the control of a trigger mechanism shown in Figure 1.Can be from container, this liquid of supply and/or this liquid under the deadweight effect be entrained in be fed to from an external source this spray gun, for example among the pressure jet of empty G﹠W.Usually before whole vehicle paint, carry out the injection of breadboard matching in colour (being also referred to as the ejection plate) or vehicle small size.For example shown in Figure 3, breadboard is usually by hardboard, and metal or plastics are made, and can have and cut relatively a hole and an opaque test zone of wearing, and this hole has 7 mm dias usually.The pigment that is ejected on the breadboard is to carry out premix from all tinters that can buy, is mixed in usually in the little volume receptacle of plastics for example or dixie cup, and its part is contained in this spray gun.What spray quantity sufficient on this plate can be solvent based water base painting layer, all to cover this opaque test zone.Dry this plate then and on this paint, apply many coatings of the varnish that normally holds the agent base.Dry then on the panel of this varnish and the vehicle by this plate being stacked in required color, relatively this paint and required color by hole relatively.

Normally from the pigment of large batch of mixed mistake, obtain the small sample of paint so that improve the uniformity of mixture, this is utilized lower weight and is amplified because make any error in the paint mixture at mixed all pigment in mixture, for example 5 gram errors in 50 mixed gram paint are 10% errors, and the same weight error in mixed 500 grams only is 1% error in the pigment mixture.For mixed purpose, find that the survey of weight measurement specific volume is more accurate.But, if on spray gun, use the big capacity paint container of a standard to spray the not good apolegamy of a test body and paint, then before spraying another examination body, require a large amount of cleanings of this system, so that prevent the cross pollution between two paint mixtures with a paint mixture of mixing colours again.The cleaning of this system is required great effort, and the work that labour intensity is high has increased the quantity of solvent for use, and can also cause the user to be exposed to harmful solvent vapour.A solution to this problem is to use disposable paint container lining, for example be Fig. 2, in PCT application number PCT/US98/00796 this lining be discussed, this patent transfers 3M company, open with WO98/32529, this patent content is incorporated herein by reference.

When these cups are prepared to abandon after each color being used a new standard-sized goblet and being used, use these cups to mix also and can reduce cross pollution between all colors.This can paint at low capacity, and the big capacity of same color paints the bigger variation that causes color between the batch on mixture and the surface.Use small volume container, for example the mixed pigment of cup has related with it many problems really.This all container is open to their surrounding environment usually, and this can cause painting usually might be by water contamination by particulate or summary.Particulate may block the nozzle of flow channel or spray gun, thus overslaugh the spraying paint and need take spray gun fully apart and clean and overhaul of breadboard or vehicle.Water is introduced the formation that can cause a binary system or a latex in the moisture-free basis blend of colors thing, because the flow dynamics of pigment composition and water different are caused the inhomogeneous of flow rate.

Use little open container with being used for the mixed purpose of color, another problem of for example some cup associated is that it need transfer to other container from holder with pigment, so that realize required tone.This may need to utilize some jars, these jars must be thoroughly after each the use with solvent clean so that prevent cross pollution between all pigment.Employed solvent is normally inflammable in cleaning, and is that be harmful to and/or poisonous, therefore for environment and healthy reason, wishes their use is reduced to a minimum.

It is very little that a color of being made by all pigment identical on the surface for same prescription on the surface different change aspect painted in batches usually.Therefore common way is large quantities of amounts of mixed a certain color and this large batch of mixture is adjusted, and will this batch one a small amount of transfer to the spray gun container, be used for purpose matching in colour.But, adjust pigment composition in this container and finish one matching in colourly and this batch " scaled up " these adjustment, so that realize that one is matching in colour in this is in enormous quantities, this is always successful owing to reason discussed below.

Another problem of the mixed preparation of paint at present is if a client wishes to keep a spot of paint, for example is used for the abrasive finishing of any possibility in future for their vehicle, and for them, this paint must be transferred to an airtight container.This produces paint once more by the problem of particle contamination, and also need abandon this container after using.

Disclosed a paint supply systems in JP11290728, this system comprises tandem pair of pistons/piston-cylinder unit, and these unit operationally provide the without interruption of paint to the spray gun of a manipulator.The piston of each unit is driven by the servomotor under the controller control, alternately these unit is connected to paint source of supply and spray gun.With this method, unit along with piston-retraction draw paint and another unit along with piston-advance is sent paint.Design the paint that this system is used for a kind of color without interruption, and be not suitable for carrying out conversion rapidly between all colors, this is owing to require the extensive cleaning of this all unit and supply pipe.Also designed with for example using, and it is not planned or can not use with a hand-held spray gun by the entrained remote spray gun of a mechanical arm.

Summary of the invention

A purpose of the present invention provides a liquid container, and it improves at least one the problems referred to above in one embodiment of this invention at least in part.

Another object of the present invention provides a liquid container, and it is in light weight, simple in structure be convenient to spraying equipment and be transformed into and spray different liquid, and require the less cleaning of avoiding cross pollution.

Another purpose of the present invention provides a liquid container, and it can pour into the liquid that will spray by hand, and does not require when allowing this container to be connected to spraying equipment by the user and drive or any power that other applies just can extract this liquid.

A further object of the present invention provides disposable, accessible liquid container is used for using with hand-held spraying equipment, thus can pull down this container and use after abandon.

The purpose that also needs again of the present invention provides a liquid container, and it is used to spray and is suitable for spraying the liquid than the less volume of small size, for example is being used for the matching during the purpose spray test of color.

From the narration of following all one exemplary embodiment, other target of the present invention and purpose will be conspicuous.

Provide a liquid container according to a first aspect of the present invention with a spray gun, this container comprises one first, base closed end and one second, one body of open end, in use this open end can be connected in a spray gun, and one vacuum form part, this part operationally produces at least a portion vacuum in body, be used for when throwing off, entering this container by the open end imbitition with spray gun, wherein, the structure of the described partial vacuum at least of control is provided, thereby when the open end of this container is connected in spray gun, can extract liquid by open end from this container, be supplied to spray gun, to form the driving of part irrelevant and put on vacuum with outside from this container.

According to the present invention, it is exercisable that vacuum forms part, to draw the liquid of requirement, normally paint enters this container, and the partial vacuum that produced thus of control, so that can extract this liquid, be used to be supplied to a spray gun, not form part so that this liquid is discharged from this container and drive vacuum.This is convenient to this container and uses with a hand-held spray gun of employed pattern in the carbody hospital.Thereby avoid when spray paint to paint being transferred to any hand drive of this container that spray gun undertakies by the operator.

In one first embodiment, body can be a syringe body, and it can be the plunger with a seal that is in the body that vacuum forms part, by in first end the bar hand drive plunger in hole.

The sealing body frictionally engages a wall of body, and syringe body being divided into two chambers, and the driving of sealing part response plunger be along axially can the sliding of body, thereby changes the relative volume of two chambers.By this method, seal leaves second, open end produces a part of vacuum (atmospheric relatively pressure reduction) towards moving of first end in body, is used in use with in this container of liquid suction.

The structure that is used for the control section vacuum can be the aperture by body wall, and this aperture is usually near first end of body, and in use enters body/can allow air to pass through when plunger when body is withdrawn, and advances/go out body.This aperture allows to draw fully/discharge air, so that do not have a vacuum/pressurized increase to arrive the degree that plunger movement is limited by a pressure differential.When almost very close to each other usually between hole in first end and the plunger so that restriction particulate when invading this container possibility, this is very important.

In use, plunger can be moved to a primary importance, this position seals part be in body second, between open end and the aperture,, liquid is sucked this container and liquid is remained in this container to produce partial vacuum at least.After being connected to spray gun, plunger can be moved to a second place then, be between aperture and first, the base closed end at this position seals part, to be released into the small part vacuum.Air entered syringe when this allowed at liquid by spray gun from this container sucking-off, simultaneously the contaminated possibility of restriction paint.Thereby, paint can be extracted out by openend from this container by spray gun, and plunger not applied a driving force from the outside of container, seal is moved towards second open end.Its result, operator only need to drive spray gun trigger in due form, and do not need this container is applied the additional drives of paint being transferred to spray gun from this container.This gives the operator and locatees spray gun freely, spray gun is aimed at wanted the surface of coated, and can not produce any negative effect to paint being fed to spray gun.

Perhaps, or additionally, the structure that is controlled to the small part vacuum can be the passage by plunger.This passage can extend to a position of body exterior from seal in body.This passage can be sealed releasedly in the outside of body by a lid.This lid is engage pistons frictionally.Perhaps, plunger is installed this lid pivotally relatively.In this mode, in use can seal this passage, when withdrawing plunger, to produce partial vacuum at least, with liquid suction container.Then can relief cap, open passage, and be released into the small part vacuum.This allows air to enter syringe when this container is extracted out with liquid when spray gun, simultaneously the contaminated possibility of restriction paint.Thereby spray gun can extract paint by open end from this container, and from the outside of this container plunger is not applied driving force, make seal towards second, open end moves.

Body second, open end can have an installed part that extends downwards from it.One closure member can be set, be used for sealing releasedly installed part.This closure member can be a cap.Installed part and cap can have complementary screw thread, thus in use can screw-threaded engagement together.Perhaps, in use closure member can frictionally engage the inwall of installed part.These closure arrangements allow the paint of preservation capacity, for example help subsequently matching in colour or allow client to obtain a spot of paint, so that they can " modification " little cut or flaw in their vehicle paintwork.

In another embodiment, body can be a telescopic body.This body can be an accordion structure, and for example this body can be a bellows.It can be an integral part of this body that vacuum forms part.Body can have an open end and a blind end, and blind end can constitute vacuum and form part, and the open end allows liquid to suck body and discharges from body.The open end can have an installed part, and is described in detail with the front, a releasable closure member, as the front in detail as described in, can be fixed in installed part, this is one easily, and is discardable usually, and the mode of a liquid container is provided.

In use, can shrink body and extension body subsequently,, liquid be sucked in the body by the open end to produce partial vacuum at least.This body can be connected to a spray gun then, and when spray gun with liquid contraction control vacuum by body when this container is extracted out.In this mode, can imbitition, and blind end (vacuum formation part) is not applied driving force from the outside of container.In a modification, can one aperture be set at blind end, this aperture is closed usually, but can be opened when container is extracted when liquid, to be released into the contraction of small part vacuum and help body.

In another embodiment, body can be a suction pipe.This body can have the thickened portion between first and second ends.In use, this thickened portion can be used as a container.It can be a suction pipe spherical shell that vacuum forms part.This spherical shell can form with suction pipe is whole.Perhaps, vacuum formation part can be a suction pipe safety injector.Open end can have an installed part, as the front in detail as described in, a closure member, as the front in detail as described in, can be fixed in installed part.

In use, can drive vacuum and form part,, liquid be sucked body by the open end in body, to produce partial vacuum at least.Then body is connected to spray gun, and for example is released into the small part vacuum, thereby allow, apply driving force and vacuum is not formed part from the outside of container from the body imbitition by opening an air duct.

A connection piece can be set, and any one embodiment that is described in detail more than being used in use inciting somebody to action is connected in spray gun.Connector can be connected to installed part releasedly and in use be suitable for being received in the installed part of spray gun.

Container can have a filtration members, and this filtration members can be positioned at the inside or the outside of container, when liquid being sucked container and/or removing particulate during from the container imbitition.This filtration members can be positioned on the container open end.Before connecting a spray gun, in use can or can not pull down this filtration members from container, use filtration members to play to prevent that undesirable particulate from carrying secretly enters in the spray tip, thereby improve the uniformity of painting layer, also prevent nozzle blockage.

Container can have a volume among any one group of following numerical value:＜25 milliliters, 25 milliliters, 30 milliliters, 50 milliliters, 75 milliliters, 100 milliliters, 150 milliliters, 250 milliliters or＞250 milliliters.

Container is disposable in the sense, and discardable container promptly plans it is not abandoned and do not plan when having used liquid to clean and re-use with another liquid.But the liquid that is contained in the container is saved by sealing this container releasedly, when needs, is for example applying a plurality of coatings with same liquid to allow when dry, can to use this liquid middle.

The body of container substantially can be for example from comprise polyethylene and polyacrylic material group selected plastic material make.This less volume with above-mentioned container has produced and has been particularly suitable for simple, small-sized, the lightweight structure of container that use with pistol.This plastic material can be opaque, is used for using with photosensitive liquid.Perhaps, this plastic material can be substantially transparent or translucent or a transparent or semitransparent window is set, and is used to check the content of container, and body can have a scale mark, to indicate the liquid capacity in this container.

According to a second aspect of the present invention, one liquid container is provided, this container comprises the fluid preservation structure, the structure that vacuum forms structure and is used for the release portion vacuum, the fluid preservation structure removably is connected to a spray gun, vacuum forms structure and is used for producing a part of vacuum (pressure differential) in the fluid preservation structure, so that in use a liquid is sucked storage configuration, and the release portion vacuum structure allows to extract from container liquid when being connected to spray gun.

The fluid preservation structure can comprise and have the syringe body that vacuum forms structure, and it is a plunger slidably in body that vacuum forms structure, with by an openend with in the liquid suction body.The structure that is used for the release portion vacuum can be to be used for partial vacuum is connected to the atmospheric air duct of external container.

Preferably, be provided with air duct with the release portion vacuum not from the body mobile plunger.For example, can form this air duct by the aperture in the body wall, thereby and the plunger of can withdrawing by aperture release portion vacuum.In this mode, can be from the body pumping liquid, and plunger is not applied a driving force from the outside of body, towards the open end mobile plunger.

Advantageously, syringe body and plunger are discardable nonrecoverable after having formed and having used, accessible container.Perhaps, the open end of syringe body can be by dismountable closure member sealing, so that can storaging liquid, till needs use.

According to a third aspect of the present invention, be provided for a liquid container of a spray gun, this container comprises that a body and a vacuum form part, body has one first, base closed end and one second, the open end, in use the open end can be connected to a spray gun, vacuum forms part and operationally produce at least a portion vacuum when container and spray gun disengagement in body, thereby liquid is sucked in the container by the open end, wherein, it is manually actuated that vacuum forms part, thereby liquid is sucked in the container by openend, and this container is suitable for being connected to spray gun, so that can supply with spray gun, and the inoperation vacuum form total part from this container by the open end pumping liquid.

According to a fourth aspect of the present invention, be provided for a liquid container of a spray gun, this container comprises small-sized, in light weight, a little volume syringe, a plunger and an openable air duct, syringe has a syringe body that can be connected in a spray gun by a hole at one end, plunger can move back and forth in body, be used for when container and spray gun disengagement, manually liquid being sucked an intrinsic liquid chamber by this hole, openable air duct is used for liquid chamber is connected to atmosphere, to allow in use liquid to be transferred to spray gun from liquid chamber.

According to a fifth aspect of the present invention, provide to be suitable for comprising according to of the present invention first, second, third and a spray gun of a container of the either side of fourth aspect.

This nozzle can be a gravity supply spray gun.Perhaps it can be a pressure supply spray gun.

According to a sixth aspect of the present invention, proposed to provide a method that can be suitable for the paint container that uses with spraying equipment, this method comprises the following steps:

I) provide a body that at one end opens wide;

Ii) provide a vacuum to form part;

Iii) this open end is placed in the paint;

Iv) utilize vacuum to form part and in this body, form a partial vacuum (pressure reduction) at least;

V) will paint and suck in the body by this partial vacuum;

It is interior till requiring to use it vi) this paint to be remained on this container; And

Vii) when this container is connected to spraying equipment, discharge this partial vacuum, be sucked out from this container to allow paint.

This method can also comprise utilizes spraying equipment from this container suction paint.This method may further include the step that a connection piece is provided, and this connector is connected in spraying equipment with body.This method may further include and makes this container and the combined step of spraying equipment.This method may further include the open end that in use is sealed in the body that wherein has paint releasedly.

According to a seventh aspect of the present invention, a method of spraying one vehicle is provided, this method comprises the following steps:

A) preparation one paint mixture;

B) part with this paint mixture sucks in the disposable container of little volume;

C) this container is connected to a spray gun;

D) spraying one breadboard;

E) with breadboard with will be relatively by a vehicle of spray paint;

F) when preparing every breadboard, regulate at needs use under the situation of paint mixture a new disposable container repeatedly step (b) to (e), until obtaining between breadboard and the vehicle one matching in colour till;

G) spray gun is carried this paint; And

H) spraying vehicle.

Spray gun can have a removable reservoir, and this method also is included in the detachable container that has a removable disposable liner is provided when making spray gun carry paint mixture in the step (g).

It will be appreciated that employed term " paint " comprises the form of ownership of the coated material of picture paint here, these materials can utilize a spray gun to put on a surface, and they are used for to surface colour in a word.This term comprises, for example, and first base coat, varnish and similar material.

Brief description of drawings

With reference to the accompanying drawings only with way of example narration the present invention, in the accompanying drawings:

Fig. 1 is the stereogram of a prior art spray gun, and it is an exploded, so that can paint;

Fig. 2 is the stereogram of the prior art paint container of a replaceable use;

Fig. 3 is the schematic diagram of one " ejection " plate;

Fig. 4 shows the injector type paint container according to an aspect of of the present present invention, and in use it has a big volume paint container;

Fig. 5 is the stereogram in use of the paint container of Fig. 4, and it has a spray gun;

Fig. 6 a, 6b are two schematic diagrames of another embodiment of a plunger of Fig. 4 container;

Fig. 7 shows the contractile paint container according to another aspect of the present invention, and it uses with a big volume paint container in the structure of extending at least in part;

Fig. 8 is that the collapsible paint container of Fig. 7 is in it and is retracted among the profile;

The paint container that Fig. 9 shows Fig. 7 and 8 in use has a spray gun;

Figure 10 shows the suction pipe shape paint container according to another aspect of the present invention, and it in use uses with a big volume paint container;

The paint container that Figure 11 shows Figure 10 uses with a spray gun;

Figure 12 a, 12b, 12c are the schematic diagrames according to all enclosed constructions of the replaceable use that is used for a paint container of either side of the present invention;

Figure 13 a, 13b, 13c are the schematic diagrames according to all connectors of the replaceable use that is used for a paint container of the present invention.

The specific embodiment

Fig. 1 shows a typical prior art paint sprayer of gravity supply type.Spray gun 1 comprises a body 2, the one handle 3 that extends downwards from the rear end of body, and at the nozzle 4 at the front end place of body.By this spray gun of a trigger 5 manual operations, this trigger is pivotably mounted on all sides of spray gun.The paint container or the canister 6 that contain the paint (or similar material) that is penetrated by spray gun are positioned on the top of body 2, and be used for a compressed-air actuated inner passage (not shown) and be communicated with, this inner passage extends through spray gun from a connection piece 7 of the lower end of handle 3 and arrives nozzle 4.In use, connector 7 is connected to a compressed air source (not shown), so that when the user promoted on trigger 5, compressed air was sent to nozzle 4 by spray gun.Because compressed-air actuated spraying effect, penetrate with a spraying by nozzle 4 with from nozzle from jar 6, the paint that is transmitted substantially under gravity.

The common manual mixing of paint that newly contains in jars 6 (for this reason need an independent container, for example a cup), and paint poured in this jar 6.In order to guarantee in paint, there is not unwanted particulate (these particulates will damage by the brightness of painted surface), will paint usually by a filter and pour in the jar 6.For this purpose, the lid 8 that Fig. 1 illustrates jar 6 is shed, and a conical filter 9 roughly is positioned on the open section of this jar.Shown filter 9 is disposable conical strainers of a known type, the screen pack part 10 that it has fine and close all sides and locates at the tip of circular cone.When painting when having poured into jars 6, filter 9 is removed and abandons, and the lid of placing again jar 8.If filter 9 is the filters that can re-use, that is as spray gun, and it should be with thoroughly cleaning of a different liquid (for example one of different colours paint or have a liquid of different chemical composition) before using.

Fig. 2 shows all parts of form of a replaceable use of canister 11, this canister can use on the spray gun 1 (or any similar spray gun) at Fig. 1, replace jar 6, as disclosing among the PCT application PCT/US98/00796, the content of this patent is combined in this and causes for ginseng.

Canister 11 comprises a container 12 that opens wide, and this container is that similarly this container has an airport 12A in its bottom, and is provided with disposable liner 13 with a traditional oils paint can of a hand-held spray gun aspect size.The shape of liner 13 is corresponding to the inboard (and closely cooperating therein) of container 12, and it has a narrow flange at open end, and this flanged housing drops on the top of container.Container 12 also has the lid of disposing 15 in the open end that press fit over liner 13.Lid 15 has a centre bore 16, extends a tube connector 17 from this hole, is provided with the part 18 that stretches out in the end of this pipe, and this part has formed the part that a bayonet socket connects.One screen pack, 19 topped holes 16, this screen pack can be press fit in this hole or can be an integral part of lid 15.Lid 15 is securely held on the container 12 by an annular ring 20, this annular ring by screw thread be screwed on the container, on the top of lid.

Canister 11 is connected in spray gun 1 by using a connection piece 21, and Fig. 2 shows this connector that separates with canister.Connector 21 is tubular elements, is formed with another part that bayonet socket connects in its an end inside, is used to be connected to the tube connector 17 of canister 11.At the other end 23, the shape of connector is formed the standard that cooperates the gun oil paint can and connects (normally one being threaded).

Use the advantage of dismountable liner 13 between all uses, not need purge tank 12 to prevent cross pollution, and the strictness and easy being maintained of the processing that its use permission in jar 12 is associated with these systems.

Fig. 4 shows the first embodiment of the present invention, and wherein container 30 comprises a syringe body 32 and a plunger 34 of basic circular cross section.

Syringe body 32 has an end that is closed substantially 36 and an open end 38.Blind end 36 has a ring seal face 39.One chamber 40 extends between sealing and the open two ends 36,38.Body 32 has an aperture 42 that enters chamber 40 near the wall that passes through it 44 of its blind end 36.

The open end 38 of body 32 has from its outward extending installed part 46.This installed part can have internal thread or external screw thread, perhaps has interior and outer plane surface, for example shown in Figure 12 and 13.

Plunger 34 has a top board 50, an elongate rod 52 and a seal 54.Seal 54 engages the inner surface of body 32 slidably and hermetically.

Bar 52 is in outside the body 32 plate 50 and is within the body 32 with seal 54 by the hole in the ring seal face 39.Seal 54 can put on the driving force of plunger 34 with the top board 50 by body 32 outsides and move in axial open end 38 towards and away from body 32.

Seal 54 frictionally engages the wall of body 32, and makes seal with an elastomeric material usually.In fact, seal 54 is divided into a paint chamber 40a and an air chamber 40b with chamber 40.Paint chamber 4a is between open end 38 and the seal 54.Air chamber 40b is between seal 54 and the blind end 36.Seal 54 has changed the correlation length of painting chamber 40a and air chamber 40b in the lengthwise movement of chamber 40, and the volume that has therefore also changed them.

The body 32 of container 30 forms by a plastic material, for example polyethylene or polypropylene usually and can be transparent, translucent or opaque, and is any appropriate size.Usually in an injection-molded processing, form body 32.For play use with a paint sprayer, as a test portion matching in colour, usually the use capacity is 25 milliliters, 50 milliliters, 75 milliliters or 100 milliliters-container, but also can imagine other capacity, this is because use how many capacity to depend on the application scenario of being planned, and other application scenario can comprise the injection of the paint of furniture for example or label or other, for example binding agent.

Top board 50 and bar 52 are formed by a plastic material, for example polyethylene or polypropylene usually, and form in-injection-molded processing usually.

A connection piece 55 usually by with the frictional fit of installed part 46 or by as below will narrate, as Figure 13 a, b, shown in the c, the complementary threads on connector 55 and installed part 46 is assembled to container 30.Connector 55 is set so that can directly be assembled among the spray gun 1, as shown in Figure 5.

Connector 55 is formed by a plastic material, for example polyethylene or polypropylene usually, perhaps it can be once mach metal in addition part, for example process by aluminium and anodization.Installed part 46 and connector 55 are assembled together and are mounted to a spray gun 1 or paint chamber 40a with cover sealing with permission container 30, and as described below, as Figure 12 a, b is shown in the c.

In use, plunger 34 advances to the position of seal 54 near open end 38 in chamber 40.Open end 38 is in the container 56 that comprises paint 57.Withdrawal plunger 34 makes seal 54 leave open end 38 towards closing end 36 motions.This of seal 54 is retracted in and produces a part of vacuum, compare with atmospheric pressure in the paint chamber 40a is a negative pressure.This part vacuum sucks paint chamber 40a with the paint of premix from large-volume receptacle 56.

Plunger 34 is withdrawn into seal 54 is in a position between open end 38 and the aperture 42, to draw up the paint of requirement.Air in the air chamber 406 is discharged from through small holes 42, thereby the motion of seal 54 is not hindered by the compression of the air among the air chamber 40b.

Then container 30 is connected to spray gun 1, and plunger 34 is retracted back into seal 54 and is in a position between aperture 42 and the blind end 36.This allows air to enter paint chamber 40a by aperture 42, is formed on partial vacuum in the body 32 with release, and allows in spraying paint to extract out and be not formed on wherein partial vacuum from paint chamber 40a.With this method, the air that enters paint chamber 40a does not require plunger 34 motions so that seal 54 preceding and then discharge paint.

May be inadequate with the pressure reduction that the entrained oil lacquer is relevant in spray gun air stream owing to being sealed and matched of intrinsic seal 54, thereby naturally and understandably plunger 34 is drawn in body, and this is an advantage.And if plunger 34 can form partial vacuum by sticking in the body 32 after the aperture 42, this reduction or obstruction paint are entrained in the spray gun air stream, and this may cause spray gun 1 not spray paint.

Such as will be understood, plunger 34 can manual operation, enter the formation of the partial vacuum of container 30 with control suction fluid, and without manual operation plunger 34, fluid can be extracted from container out.And container 31 is small-sized, lightweight structures, and this is convenient to keep and location spray gun 1, guides paint injection as required.Its result is easy and simple if container 30 relatively uses with the situation that an external motivating force must be put on continuously plunger 34, promptly discharge paint by user's hand from container 30.

If desired, can comprise an available filtration members 58 or it is assemblied in the open end 38 of syringe body 32 in syringe body 32, little is entrained among the paint when preventing in paint suction body 32.Prevent that like this particulate from blocking the characteristic and the brightness of spray gun 1 and reduction paint 57.

In another embodiment, shown in Fig. 6 a and 6b, can save aperture 42, plunger 34 is provided with the bar 52 with an inner passage 59, and this inner passage comprises first opening 61 and second opening 63.Passage 59 provides an air flue, and this air flue will paint chamber 40a and be connected to body 32 atmosphere outside, and can be by the lid 59a sealing that is positioned on the top board 50.

Lid 59a is connected to the outer surface of the top board 50 of plunger 34 usually hermetically, thus the opening 63 of its topped passage 59.The hinge 59b that lid 59a can be installed in a side that is connected in top board 50 pivotally goes up that (Fig. 6 a) or frictionally engages top board 50 (Fig. 6 b).

Lid 59a is connected in top board 50 when paint is inhaled into body 32, with closed channel 59, enters paint chamber 40a to prevent air.Air among the air chamber 40b can be overflowed between the bar 52 of plunger 34 and the hole in the confining surface 39.Perhaps, can in wall He in the confining surface, an aperture be set for this purpose.

In case reached the required paint influx height of chamber 32, can as previously mentioned container 30 be connected to a spray gun 1, and lid 59a is unloaded from top board 50.This will paint chamber 40a and be in outside atmosphere connected state with body 34, and allow air to enter paint chamber 40a, discharge the partial vacuum that wherein forms.Once more, this does not advantageously apply an external force to plunger 34 and allows paint to be sucked out from container 30 in the operating period of spray gun 1.

In use, press down spray gun trigger 5 and spray air from the compressed air source (not shown) by connector 7, this makes paint 57 atomizings and makes its ejection by nozzle 4.Finish in case spray paint, can pull down container 30 from spray gun 1.

If painting 57 is to match with required color, paint 57 can be turned back to large-volume receptacle 56, and abandon container 30.Perhaps, can airtight container 30, preserve to get up to be provided with the back and use will be contained in paint 57 among the 40a of chamber.

Do not match if paint 57, it is turned back to large-volume receptacle 56, and mix colours with required color.Abandon container 30 to prevent cross pollution between all parts of tone.Cleaning spray gun 1 is drawn another sample that paints with another container 32 then, is used for testing in the same manner injection, until obtaining matching of a color.

In another embodiment, shown in Fig. 7,8 and 9, use telescopic, a folding container 60, it comprises an one handle 62 that is connected in a blind end 64 and a bellows 66 that extends between blind end and open end.

One end of blind end 64 shrouded bellows 66, so that form a cavity 69, this cavity leads to its surrounding environment by open end 68.Open end 68 comprises an installed part 70 that can be fixed in a connection piece 55a as shown in the figure, perhaps has with the similar fashion of the installed part 46 of first embodiment to assemble a closure member on it.

Bellows 66 is made by a plastic material, for example polyethylene or polypropylene usually.Normally 25 milliliters, 50 milliliters, 75 milliliters or 100 milliliters of the capacity of container 60, but it is contemplated that the application scenario of being used according to container 60 can use any capacity.

In use, the bellows 66 of container 60 is in compressive state at first, as shown in Figure 8.A container 72 that comprises paint 74 is inserted in end 68.Pulling handle 62 leaves end 68, thereby extends bellows 66.When extending bellows 66, in bellows 66, form a part of vacuum, atmospheric relatively negative pressure.This part vacuum will be painted 74 and be sucked cavity 69, as shown in Figure 7.Extension that can bellows 66 hand-manipulated.

Bellows 66 can be connected in a spray gun then, as shown in Figure 9, can extract paint 74 out from container 60 in the operating period of spray gun 1.In this embodiment, the folding structure of container 60 is such, thus when with the external motivating force that puts on blind end 64 irrespectively when container 60 extracts paint 74, bellows 66 contractions and turn back to their profile that is compressed.In this mode, the partial vacuum that the contraction of bellows 66 has been produced when having controlled in will painting 74 suction containers 60, and guaranteed not limit or do not hinder extraction paint 74 in the operating period of spray gun 1.

In case spray paint is finished, can unload container 60 from spray gun.Match with required color if paint 74, paint can be turned back to large-volume receptacle 72 and abandon container 60.Perhaps, can airtight container 60 be contained in paint 74 in the cavity 69, for later use with preservation.

Do not match if paint 74, then it is turned back to large-volume receptacle 72 with required color, and further toning.Abandon container 60 with cross pollution between the sample that prevents various accent.Cleaning spray gun 1 and the further sample that paints with another container 60 absorptions then are used for testing in the same manner injection, until obtaining matching of a color.

If desired, an available filtration members 76 can be included within the open end 68 of container 60 or be assemblied on the open end 68, be entrained among the paint 74 that is inhaled in the container 60 to prevent particulate.This prevents that spray gun 1 from being blocked by particulate and 1 or paint 74 characteristic and brightness and damaged by institute's entrained particulates.

In the embodiment of another the replaceable use shown in Figure 10 and 11, use a container 80 that comprises a suction pipe body 82 and injector 84.

The cross section of suction pipe 82 is circular basically and this suction pipe has the stage casing 88 of an elongated epimere 86, an overstriking, with an elongated hypomere 90 of an openend and installed part 92.

Installed part 92 is with described identical about front embodiment, and can have a closure member that is assembled as described below, perhaps can be fixed in a connection piece 55b, and this connector allows container 80 to be assembled to spray gun 1, as shown in figure 11.

Injector 84 has a spherical substantially elastic shell and a pipe 96, and this pipe is opened and is assemblied on the epimere 86 of body 82 from spherical shell 94 extensions with at the end 98 away from spherical shell.Pipe 96 has the perpendicular outstanding pipe 100 that stretches out.Pipe 96 has the valve 102 between end 98 and outstanding pipe 100.Outstanding pipe 100 has a valve 104 that is positioned at wherein.

Suction pipe 82 is normally made by a for example polyethylene or a polyacrylic plastic material.Perhaps, suction pipe can be made by glass.The capacity of this container is generally 25 milliliters, 50 milliliters, 75 milliliters or 100 milliliters, still it is contemplated that according to container 80 employed occasions and can adopt any volume.

In use, shut off valve 102 and open valve 104 by manual extruding spherical shell 94, forces air to allow air discharge from spherical shell 94 from spherical shell 94 by outstanding pipe 100 and open valve 104.In case the air of having discharged aequum is with regard to shut off valve 104, to form partial vacuum in spherical shell 94, to be in a ratio of negative pressure with atmosphere.

A large-volume receptacle 106 that comprises paint 108 is inserted in the open end 91 of the hypomere 90 of suction pipe 82.Open valve 102, the negative pressure in the spherical shell 94 will be painted 108 and be sucked container 80.Shut off valve 102 when the paint 108 of requirement has sucked container 80.Usually the major part that is stored in the paint in the container 80 is stored in the stage casing 88.

Be installed on the spray gun 1 container 80 and squeezing trigger 5.By connector 7 with by nozzle 4, its forms an injection that has from the vaporific paint of the paint 108 of container 80 suctions to air at the nozzle place from the compressed air source (not shown).Open valve 102,104 and be formed on the partial vacuum in the suction pipe body 82 with release and prevent to form vacuum in container 80 in the spraying process, this vacuum is final to hinder from container 80 suction paint 108.And, open valve 102,104 and allow during spray paint, spherical shell 94 not to be applied external force and just can paint from suction pipe 82 suctions.

In case spray paint is finished, pull down container 80 from spray gun 1.Match with required color if paint 108, paint 108 can be turned back to large-volume receptacle 106 and abandon container 80.Perhaps, can airtight container 80 be included in paint 108 among it, for later use with preservation.

Do not match if paint 108, it is turned back at large-volume receptacle 106 with required color, and further toning.Abandon container 80, prevent cross pollution between the sample of all tones.Cleaning spray gun 1, the further sample that uses another container 80 suctions to paint then is used for testing in the same manner spraying, until obtaining matching of a color.

If desired, an available filtration members 109 can be included among the open end 91 of container 80 or be assemblied on this open end, be entrained among the paint 108 that is inhaled in the container 80 to prevent particulate.This has prevented that spray gun 1 from being blocked by particulate and/or paint 108 characteristic and brightness and damaged by entrained particulates.

In above-mentioned each embodiment, each installed

part

46,70,92 can have an internal thread 110, and this internal thread can (be seen a Figure 12 complementary external screw thread 120 engagements a), to seal the liquid in this container, till needs use with a closure member 118.

Perhaps, each installed

part

46,70,92 can have an external screw thread 112, this external screw thread can with internal thread 124 engagements of a complementation of a closure member 122 (seeing Figure 12 b), to seal the liquid in this container, till needs use.

Perhaps, installed

part

46,70,92 can have not threaded flat inner surface 114 peaceful outer surfaces 116, and one closure member 126 be provided with a smooth outer surface 128, can be press-fitted this outer surface with engages inner surface 114 (seeing Figure 12 c) frictionally, with the liquid in the

airtight container

30,60,80.

Figure 13 a, 13b and 13c show the installed part that has closure member 118,122 and 126 46,70,92 of Figure 12 a, 12b and 12c, and installed

part

46,70,92 is connected to corresponding

connector

55,55a, 55b, are used to be connected to spray gun 1.

In Figure 13 a, connector have can with the internal thread 110 of installed

part

46,70,92 and the external screw thread 130 that is meshed with a female thread portion of spray gun installed part (not shown).

In Figure 13 b, connector has internal thread line 132 that can be meshed with the external screw thread 112 of installed

part

46,70,92 and the external screw thread 134 that can mesh with the internal thread of spray gun installed part (not shown).

In Figure 13 c, connector has the smooth outer surface 136 in the slippery inner surface 114 that is press fit over installed

part

46,70,92 and is arranged on external screw thread 134 outside the installed

part

46,70,92.This external screw thread 134 can be meshed with the internal thread of spray gun installed part (not shown).

Perhaps,

container

30,60,80 can utilize as the bayonet socket helicitic texture that in PCT application PCT/US98/00796, disclosed or the system that guarantees here to be disclosed and made in accordance with the present invention any structure of the alternate manner of the operability each other between the container be connected in spray gun.

According to container of the present invention only needing can be used for small amounts of paint with cause paint to use and consume be the situation of minimum.For example, when to a breadboard spray paint to obtain the matching maybe when the time an of color to the small size spray paint of a vehicle or other object.

It will be appreciated that the discardable character according to a container of the present invention has significantly reduced the cleaning amount that is associated with prior art systems, turn colors is more prone to rapid.When attempting to obtain to require manyly mixes colours repeatedly when finishing the matching an of color that matches that this is a particular importance.

Also it will be appreciated that the quantity that will reduce employed solvent according to the discardable character of a container of the present invention and the minimizing cleaning that is associated, what accompany therewith is health and the environment that helps the user.

It will be conspicuous being used in various application scenarios that other of a container that is sent to a spray gun than low capacity with a liquid use for those skilled in the art.

It will be appreciated that also exemplary all embodiment as herein described are used to illustrate various scope of the present invention and application, and can use separately all embodiment all features or with the utilization that combines of any other feature of identical or different all embodiment, to produce the combination of any required container and/or container spray gun.

And, though believe described and shown in the certain material of all containers and/or structure represented the applicant's known best device at present, it will be appreciated that the present invention is not limited thereto, in the principle of claims and scope, can make many improvement.

Claims

1, one is used for the liquid container of a spray gun, this container (30,60,80) comprise having one first, base closed end (36,64) and one second, open end (38,68,91) a body (32,66,82), in use open end (38,68,91) can be connected to a spray gun (1), and one vacuum form part (34,64,84), to form part be exercisablely to produce at least a portion vacuum by open end in body to vacuum when this container breaks away from spray gun (1), be used for liquid (57,74,108) suck container (30,60,80), it is characterized in that, be provided for controlling the structure (42 of described partial vacuum at least, 59,59a, 66,104), thereby at container (30,60,80) open end (57,68, can be when 91) being connected in spray gun (1) with liquid (57,74,108) from container (30,60,80) by open end (36,68,91) sucking-off, be used to be supplied to spray gun (1), and with from container (30,60,80) outside puts on vacuum and forms part (34,66,84) a driving force is irrelevant.

2, as the desired liquid container of claim 1, it is characterized in that, body (32) is a syringe body, and (34) are to have a seal (54) that is in the body (32) and a plunger that passes through a bar (52) in the hole in first end (36) and vacuum forms partly.

3, as the desired liquid container of claim 2, it is characterized in that, seal (54) engages a wall (44) of body (32) slidably and hermetically, syringe body (32) is divided into two chambers (40a and 40b), and plunger (34) leaves second, open end (38) produces partial vacuum at least towards the motion of first end (36) in body (32), is used for liquid (57) is sucked container (30).

4, as claim 2 or 3 desired liquid containers, it is characterized in that, the structure (42) that is used to be controlled to the small part vacuum is included near first end (36) of body (32), one aperture (42) of the wall by body (32), so that in use seal (54) can leave second, open end (38) is towards second, primary importance between open end (38) and the aperture (42) moves, thereby liquid (57) is sucked container (30), and move to aperture (42) and first, second place between the blind end (36), thus allow liquid to pass through second from container (30), open end (38) is sucked out.

5, as claim 2 or 3 desired liquid containers, it is characterized in that, the structure (59) that is used to be controlled to the small part vacuum comprises from the seal (54) in body (32) extends a passage (59) that arrives the outside position of body (32) by plunger (34), an and resealable closure (59a) that is used for this passage of opening/closing (59), so that in use, passage (59) is closed by closure member (59a), thereby allow to leave second by seal (54), moving of open end (38) sucks body (32) with liquid (57), and open this passage, thereby allow from second by discharging closure member (59a), open end (38) is extracted liquid (57) out.

6, as the desired liquid container of claim 1, it is characterized in that, body (66) is telescopic, a folding body (66), this body first, blind end (64) constitutes vacuum and forms part, so that the partial vacuum that motion produced of leaving open end (68) by blind end (64) can suck body (66) with liquid (74), and the structure (66) that is provided for the control section vacuum by contractile body (66).

7, as the desired liquid container of claim 1, it is characterized in that, body (82) be have first, an injector (84) and the valve arrangement (102 of blind end, 104) a suction pipe (82), this injector is used to be provided for liquid (108) is sucked the vacuum formation part of body (82), valve arrangement is used for the control section vacuum, thereby allows liquid (108) from body (82) sucking-off.

8, as each desired liquid container among above-mentioned claim 1-3 and the 6-9, it is characterized in that, body (32,82) second, open end (38,68,91) is provided with an installed part (46,70,92), this installed part is used in use releasedly second, open end (38,68,91) is connected in a spray gun (1), or second, open end is provided with a closure member (118,122,126), is used for airtight container (30,60,80).

9, as the desired liquid container of claim 8, it is characterized in that, provide a connection piece (55,55a, 55b), be used in use installed part (46,70,92) being releasably connected to a spray gun (1).

As each desired liquid container among above claim 1-3 and the 6-9, it is characterized in that 10, container (30,60,80) has at least 100 milliliters volume.

As each desired liquid container among above claim 1-3 and the 6-9, it is characterized in that 11, container (30,60,80) is disposable, discardable container (30,60,80).

As each desired liquid container among above claim 1-3 and the 6-9, it is characterized in that 12, container (30,60,80) has prevented from use to escape solvent vapour substantially from solution or mixture.

13, as each desired liquid container among above claim 1-3 and the 6-9, it is characterized in that, make by a plastic material on body (32, the 82) matrix.

14, as the desired liquid container of claim 13, it is characterized in that body (32,82) is substantially transparent or translucent, or have a transparent or translucent window, and a scale mark is set, be used to refer to the volume of the liquid in the body (32,82).

15, a kind of spray gun that comprises as each desired liquid container (30,60,80) of above claim.

According to the described spray gun of claim 15, it is characterized in that 16, this spray gun is a hand-held gravity spray gun (1) that supply with or pressure feed.

17, a kind of method that the paint container that uses with a spray gun is provided, this mode comprises the following steps:

(38,68,91) open body (32,66,82) i) is provided at one end;

Ii) provide a vacuum to form part (34,64,84);

Iii) this openend (38,68,91) is placed in the paint;

Iv) utilize vacuum to form part (34,64,84) and in body (32,66,82), be formed up to small part vacuum (pressure reduction);

V) will paint (57,74,108) by this partial vacuum sucks in the body (32,66,82);

Vi) in body (32,66,82), keep paint (57,74,108), in the time will using this paint till; And

Vii) control this partial vacuum, thereby when being connected to a spray gun (1), allow not discharge paint (57,74,108) and drive vacuum formation part (34,64,84) from this container sucking-off paint (57,74,108).

18, according to the method for claim 17, it is characterized in that, in step (vi) and (also comprise seal body (32,66,82) releasedly vii), remain in the body (32,66,82), till requiring to use it thereby will paint (57,74,108).

19, a kind of method of spraying one vehicle, it may further comprise the steps:

A) preparation one paint mixture (57,74,108);

B) form part (34,64,84) by a vacuum and in container little volume, disposable (30,60,80), form a partial vacuum and with the part of paint mixture (578,74,108) suction container (30,60,80) at least;

C) container (30,60,80) is connected to a spray gun (1);

D) control this partial vacuum at least, thereby allow paint (50,74,108), do not discharge paint (57,74,108) and do not drive this vacuum formation part (34,64,84), and spray a breadboard from container (30,60,80) sucking-off;

E) breadboard and a vehicle of wanting spray paint are compared;

F) when preparing every breadboard, regulate at needs under the situation of paint mixture (57,74,108), use one new, disposable container (30,60,80) repeating steps (b) to (e), true to obtain between breadboard and the vehicle one matching in colour till.

G) carry paint mixture (57,74,108) for spray gun (1); And

H) spraying vehicle.

20, according to the method for claim described 19, it is characterized in that, spray gun has a removable reservoir (11), and this method also is included in the step (g) the demountable container (11) that has a demountable disposable liner (13) is provided when spray gun (1) carried paint mixture (57,74,108).