CN1726087A

CN1726087A - Spray gun reservoir with oversize, fast-fill opening

Info

Publication number: CN1726087A
Application number: CN200380106276.8A
Authority: CN
Inventors: S·C·P·约瑟夫; D·E·希尔特伯格
Original assignee: 3M Innovative Properties Co
Current assignee: 3M Innovative Properties Co
Priority date: 2002-12-18
Filing date: 2003-10-27
Publication date: 2006-01-25
Anticipated expiration: 2023-10-27
Also published as: DE60307137T2; WO2004060574A1; EP1716931B1; EP1716931A3; JP2006517462A; CA2506453C; RU2383395C2; DE60332290D1; CN100444969C; GB0229401D0; EP1572373B1; ES2344466T3; JP4532287B2; ATE464950T1; RU2005116980A; ATE333949T1; DE60307137D1; HK1087661A1; CA2506453A1; EP1716931A2

Abstract

A spray gun reservoir has an oversize central opening 130 at one end allowing liquid to be added to the reservoir for fast filling with reduced risk of spillage. A cap member 132 is connectable to the reservoir and has a spout 115 providing a fluid outlet of reduced size relative to the opening 130 for connection to the spray gun. The reservoir can be disconnected from the cap member 132 when it is desired to add liquid to the reservoir. In this way, the reservoir can be re-filled in use.

Description

Be provided with the spray gun liquid reservoir of amplifying that fills perforate fast

Technical field

The present invention relates to for or about the improvement of the liquid provisioning component that uses with the sprayer unit such as spray gun.More particularly, the present invention relates to be installed on the spray gun, wherein hold the liquid provisioning component of the liquid reservoir of the liquid that will spray.

Background technology

In many industry people use widely spray gun with liquid spray on a matrix.In known spray gun, in the liquid reservoir of liquid containing on being attached at spray gun, and be fed to a nozzle from this liquid reservoir.When nozzle comes out, liquid is atomized and forms a spraying with the compressed air that is supplied to nozzle.Can utilize gravity or utilize suction to come feed fluid, perhaps more recently be by from compressed-air line or or even nozzle self air that flow to liquid reservoir carry out forced feed.

A common application of nozzle is to be used for the automobile of having repaired after having an accident is sprayed paint again in car repair body shop.Typical finish may require to apply priming paint, base coat, finish paint and clear varnish.Traditionally, liquid reservoir is a rigidity jar, and it is removably mounted on the spray gun by the engagement of the screw thread that matches on itself and the spray gun.When changing the liquid that will spray, must clean completely spray gun and jar, to avoid to cause finish the cross pollution of adverse effect.This is in the part of spray car and will make it and the existing color of adjacent vehicle body is particularly important when accurately mating.Cleaning spray gun and jar are consuming time, and often require to use the solvent that costs an arm and a leg and can have health threat to the operator.

We had before proposed a kind of liquid reservoir in WO 98/32539, and wherein liquid is accommodated in disposable lid/bush assembly.Lining is the vessel form of the open-top in the rigidity jar outside of closely cooperating, and lid is fixed on the open end of lining by a collar that is threaded onto on the jar.Liquid reservoir is connected to spray gun by means of one releasedly with lid all-in-one-piece spout, and in use passes this spout and extract liquid from liquid reservoir.

By this way, after spraying, can pull down liquid reservoir, discharge the collar, and from outer jar, take out lid/bush assembly and it is abandoned from spray gun.Can reuse this outer jar and the collar with a new clean lining and a lid then, to supply different liquid to spray gun.As a result, reduced desired flushing dose significantly, and spray gun simply mode easily be suitable for applying different liquid.

For the application scenario of some spray guns, may need than the more liquid of the open ended volume of liquid reservoir.For example, when bigger area being sprayed or during the liquid identical (for example when using priming paint or clear varnish) to same or different automobile spreading several layers.In this case, can pull down liquid reservoir, discharge the collar and take off lid, adding liquid to lining from spray gun.Then liquid reservoir is re-assemblied and be attached on the spray gun again.

The dismounting of liquid reservoir and to re-assembly be consuming time, and may cause liquid to overflow, particularly when pulling down lid, lining especially may take place.Equally, taking off lid increases with the danger of adding more liquid to lining other pollution sources from for example dust or dirt being polluted.

A kind of alternative mode is that the spout that passes in the lid adds liquid to avoid dismounting to liquid reservoir, but since spout be with to compatible mutually undersized of the connection of spray gun, freely pour liquid into liquid reservoir and can't pass spout, so that this mode operates is very slow.Also have, spout may comprise a filter, and the inner that perhaps can cross spout in lid is provided with a filter, to remove any undesired solid particle in the liquid that in use extracts from liquid reservoir.The dismounting filter requires the dismounting syringe, and is provided with such filter and can makes and pass spout to add liquid to liquid reservoir slower.

In addition, if liquid contains solid particle, then they can be trapped within the incorrect side of filter.As a result, when liquid reservoir was attached to spray gun again, these particles may be carried secretly along with the liquid of extracting out from liquid reservoir, and enter spray gun.This may cause stopping up in the spray gun.Perhaps or in addition the situation that also can take place is, these particles may be applied on the surface that is sprayed along with liquid, and its consequence may must spray this surface exactly again.

Summary of the invention

The present invention is intended to further improve our existing systems, and provides additional benefits and advantage for the user.

More particularly, at least one embodiment of the present invention provides a kind of liquid provisioning component that uses with spray gun, and it can add liquid in simple mode.

In addition, at least one embodiment of the present invention provides a kind of liquid provisioning component that uses with spray gun, and mode can be empty or that preliminary filling is equipped with liquid is supplied it.

Also have, at least one embodiment of the present invention provides a kind of liquid provisioning component that uses with spray gun, and this assembly can abandon after use to reduce desired cleaning amount.

This paper will mention other benefit of the present invention and advantage hereinafter.

According to first aspect, the invention provides a kind of liquid provisioning component that uses with the sprayer unit such as spray gun, this assembly comprises a liquid reservoir of using for the liquid that will spray, this liquid reservoir has one first end, with isolated one second end of first end, end wall at the first end place, extend to a sidewall of second end from end wall, in end wall from inside perforate of sidewall and the block part that is fixed to liquid reservoir around perforate releasedly, this block spare has a spout, this spout provides a fluid that is communicated with liquid reservoir by perforate outlet, wherein, spout can be connected to spray gun, liquid reservoir is connected to the fluid inlet of spray gun, and liquid reservoir can be pulled down from the block part, to add fluid by perforate to liquid reservoir.

As used herein, term " liquid " refers to and can utilize a spray gun to be sprayed into the flowable materials of the form of ownership on a surface (no matter whether they are to want to this surface coloring), comprises (but being not restricted to) paint.The material of priming paint, base coat, varnish, vernix and similar similar paint, and the material such as binding agent, sealant, filler, putty, powder coating, sandblast powder, abrasive slurry, releasing agent and casting dressing, they can atomize or the form spreading of non-atomizing, this depends on properties of materials and/or the application of wanting, and also should correspondingly understand term " liquid ".

By the present invention, the fluid issuing of liquid reservoir is to be provided by the independent spout of blocking a shot part that is fixed in liquid reservoir releasedly.As a result, the perforate in the liquid reservoir just relatively fluid issuing is amplified, and liquid reservoir can pull down from the block part, by this perforate liquid being added into liquid reservoir, and need not to take apart liquid reservoir.By this way, just simply mode is added into liquid reservoir with liquid, so that the danger that liquid overflows and/or polluted reduces.

If the capacity of liquid reservoir is less than the desired liquid volume of particular application, this is particularly helpful.For example, when the spraying large tracts of land, the user can pull down liquid reservoir from the block part, fills it up with liquid reservoir to use additional liquid, and liquid reservoir is attached to block spare again.

If wish the liquid that dilution is sprayed, then this also is useful.For example, when the facing transparent coating of spreading such as varnish, the user can pull down liquid reservoir from the block part, and so that solvent is added into liquid reservoir, thereby the viscosity that reduces transparent coating and is attached to block spare with liquid reservoir again with " dilution or fusion ".

Liquid reservoir can be collapsed when liquid is extracted.For example, it can be flexible that sidewall is compared with sidewall, producing distortion, thereby from second end towards first end along the liquid reservoir of axially collapsing.Preferably, the end wall opposing sidewalls is the comparison rigidity, so that stability to be provided, and makes the user liquid reservoir can be attached to the block part and catch liquid reservoir when pulling down liquid reservoir and liquid reservoir can collapsing from the block part.In a preferred embodiment, liquid reservoir is provided with the substrate of comparison rigidity at the second end place, so that liquid reservoir can be inverted and stand in the substrate, adds liquid for the perforate of passing through in the end wall.

Liquid reservoir can form single part.For example, liquid reservoir can be the molded item such as blown-moulding.Perhaps, substrate and sidewall can form single part, and end wall forms a part independently that is fixed in sidewall.For example, substrate and sidewall can form the container of an open-top, and end wall then forms a lid of container.Lid can be permanently fixed to container.For example, lid can weld or be glued on the container.Perhaps, lid can be fixed to container releasedly.For example, lid can be clamped on the container.

The block part can threaded engagement on liquid reservoir.Perhaps, the block part can be fixed to liquid reservoir releasedly by other suitable device, for example by engaging.In a preferred embodiment, the block part comprises a substrate that forms a socket, and this socket is provided with internal thread, define an external screw thread plug of perforate in the liquid reservoir with admittance, and spout extends away from substrate from substrate.

Perforate in the relative liquid reservoir end wall of spout is that size reduces, to be used to be connected to the spray gun inlet.For example, the diameter of spout can be less than half of the opening diameter in the liquid reservoir end wall, more preferably less than 1/3rd of opening diameter, and more preferably less than 1/4th of opening diameter.In one embodiment, the diameter of perforate is 50-60mm, preferably 53mm (about 2 "), and the diameter of spout is 10-15mm (about 1/2 ").

Preferably, perforate is positioned at the center of end wall.By this way, the size of perforate can be done maximumly, to fill liquid reservoir apace.Advantageously, the spout in the block part is coaxial with perforate, so that liquid reservoir aligns with the longitudinal axis of spray gun when being connected to spray gun.As a result, the weight of liquid reservoir and liquid wherein just can influence the operation of spray gun sharply, and keeps balance.

Advantageously, the block part is suitable for being connected to releasedly sprayer unit.For example, block part and sprayer unit can be provided with the bayonet type structural portion that association joins.By this way, the block part can be connected to attached or not be attached with the sprayer unit of liquid reservoir and discharge from it by a simple action, only requires minimum effort of user or manually operated dexterity.

Preferably, spray gun is provided with a socket with the admittance spout, and the bayonet type structural portion can engage so that spout is remained in the socket.Socket can be the part of the one of spray gun, and perhaps it can be a part independently that is fixed to spray gun.For example, can form socket by an inlet attack that is fixed in spray gun.

In a kind of structure, the bayonet type structural portion can be bonded in the socket.For example, spout can be provided with relative bayonet socket projection at free end, and these bayonet socket projections are received within the latch notch groove in the socket.In another structure, the bayonet type structural portion can be bonded on the socket outside.For example, socket can have an outward flange, and this outward flange can be assisted with a pair of hook spare that stretches out from the substrate of block part on the opposite side of spout and be joined.

Preferably, the available relative spray gun of bayonet arrangement portion is screwed less than a whole circle of block part and is engaged and throw off, and the releasable connection between block part and the liquid reservoir is arranged to: when the part of will block a shot is connected to spray gun or liquid reservoir can be from the disengagement of block part when spray gun is thrown off the block part.For example, when block part threaded engagement was on liquid reservoir, the screw thread part that may require to block a shot was relatively screwed a whole circle more than liquid reservoir, liquid reservoir be fixed to the block part or discharge liquid reservoir from the block part.Perhaps or situation about also having in addition be that the screw thread on block and the liquid reservoir can be reverse, so that by along unscrewing from the liquid reservoir release part of blocking a shot with the opposite direction that the part of will block a shot is connected to spray gun.

The block part can comprise a filter that is used for removing contained any the undesired solid particle of the liquid that extracts from liquid reservoir.For example, filter can be arranged in the spout.Perhaps, filter can be placed in the place, bottom of socket, is transverse to the perforate of spout with extension.By this way, can add liquid to liquid reservoir, but not filter to remove any solid particle by perforate.In addition, if filter in use stops up, then can change block spare.

Perhaps, can the liquid that be added into liquid reservoir be filtered, removing any solid particle, thereby in use the liquid that extracts from liquid reservoir is filtered with regard to not needing.By this way, can save the filter of block in the part.

Liquid reservoir can empty form be supplied to the user filling liquid, and attached block spare is to be connected to spray gun with liquid reservoir.At liquid reservoir is under the situation about can collapse, and it can be collapsed into the form of a compactness for storage and transportation.

Perhaps, the form that liquid can preliminary filling be housed is supplied liquid reservoir, and the perforate sealing is just opened when wanting to use this liquid.For example, can utilize a removable closure member or the diaphragm that can stave that breaks when being attached to liquid reservoir at the block part seals perforate.In another structure, the block part can be suitable for seal and opening, just opens when wanting to use liquid.For example, the block part can be provided with a removable seal in the bases of socket, with close jet.Perhaps, the end that can cross spout is provided with a diaphragm that can stave, and this diaphragm breaks when spout is attached to spray gun.

Can packing and storage can quality variation until requiring to use liquid can adopt the mode of prefilled.Therefore, prefilled opposition can be used (that is need not to make amendment to be complementary with existing color) and the liquid of supply is particularly useful.For example, the base coat of the Standard Colors of particular shade of color and/or priming paint or varnish, they can unactivated forms or activate (if necessary) by suitable measure, and the appropriate action of described activation is as getting off to realize to activate by being exposed to light source (ultraviolet ray) or electric energy when needed.No matter adopt which kind of structure, in use can add liquid by perforate and fill liquid reservoir once more, and liquid reservoir is attached to block spare again by pulling down liquid reservoir from the block part.

According to a second aspect, the invention provides a kind of liquid provisioning component that uses with the sprayer unit such as spray gun, this assembly comprises a liquid reservoir of using for the liquid that will spray, this liquid reservoir has one first end, with isolated one second end of first end, end wall at the first end place, extend to a sidewall of second end from end wall, in end wall from an inside perforate of sidewall and a block part, this block spare has a substrate and a spout, and be fixed in liquid reservoir releasedly by the joint of substrate and the complementary threads on the end wall of perforate, and spout extends away from liquid reservoir from substrate, and the fluid outlet that spout provides relative perforate cross section to reduce, and a fluid that can be connected on the spray gun enters the mouth so that liquid reservoir is connected to spray gun, wherein, liquid reservoir can be pulled down from the block part, to add fluid by perforate to liquid reservoir.

Collapse when preferably, liquid reservoir can in use extract liquid.For example, can to compare sidewall be the comparison rigidity to end wall.By this way, end wall provides stability, and make the user liquid reservoir can be attached to the block part and catch liquid reservoir when pulling down liquid reservoir and liquid reservoir can collapsing from the block part, and when in use when liquid reservoir extracts liquid, sidewall can be collapsed towards end wall vertically.

In a structure, the block part has a socket, and this socket is provided with an internal thread that can mesh with the external screw thread on the plug that centers on the perforate extension in end wall.In another structure, the edge of perforate is provided with the internal thread that can mesh with the external screw thread on the block part.

In accordance with a further aspect of the present invention, be provided for to a liquid reservoir of spray gun or similar device supply liquid in combination and liquid reservoir be connected to a block part of spray gun, this liquid reservoir has one first end, with isolated one second end of first end, end wall at the first end place, extend to a sidewall of second end from end wall, in end wall from sidewall inside one fill fast a perforate and a block part, can add liquid to liquid reservoir by described perforate, and the perforate mobile requirement when liquid reservoir in use is connected to spray gun is relatively amplified, described block spare has a substrate and a spout, and the joint of the structural portion by substrate and the complementation on the end wall of perforate and be fixed in liquid reservoir releasedly, and spout extends away from liquid reservoir from substrate, and the fluid outlet that spout provides relative perforate cross section to reduce, and a fluid that can be connected on the spray gun enters the mouth so that liquid reservoir is connected to spray gun, wherein, liquid reservoir can be pulled down from the block part, to add fluid by perforate to liquid reservoir.

By making liquid reservoir be provided with a fast filled perforate of amplifying, add liquid to liquid reservoir thereby be convenient to overflow dangerous mode with simple, minimizing.

Now will only the present invention be described in further detail in the mode of example, and with reference to the following drawings:

Description of drawings

Fig. 1 is the stereogram of prior art spray gun;

Fig. 2 is the decomposition axonometric drawing of the constituent part of storage lacquerware shown in Figure 1;

Fig. 3 is the stereogram of the storage lacquerware shown in Figure 2 that assembles;

Fig. 4 is the profilograph of storage lacquerware shown in Figure 3;

Fig. 5 illustrates the separation of constituent part after use of storage lacquerware shown in Figure 3;

Fig. 6 is the stereogram that is used for the storage lacquerware is connected to a joint of spray gun;

Fig. 7 is the profilograph of joint shown in Figure 6;

Fig. 8 is similar to Fig. 2 but the decomposition axonometric drawing of constituent part according to a storage lacquerware of first embodiment of the invention is shown;

Fig. 9 is similar to Fig. 3 but stereogram that the storage lacquerware shown in Figure 8 that assembles is shown;

Figure 10 is the profilograph of storage lacquerware shown in Figure 9;

Figure 11 be with liquid reservoir shown in Fig. 8 to 10 use one the block part stereogram;

Figure 12 is the profilograph that the block spare shown in Figure 11 that is attached to liquid reservoir shown in Fig. 8 to 10 is shown;

Figure 13 is the stereogram according to the liquid reservoir of second embodiment of the invention and block part;

Figure 14 is the stereogram of the alternative block spare that uses of the liquid reservoir with Fig. 8 to 10 or Figure 13;

Figure 15 be with block spare shown in Figure 14 use, with the vertical view of the joint of the alternative form that liquid reservoir is connected to spray gun;

Figure 16 is similar to Figure 12 but profilograph that the alternative connected mode between block part and the liquid reservoir is shown; And

Figure 17 is similar to Figure 12 but profilograph that another the alternative connected mode between block part and the liquid reservoir is shown.

The specific embodiment

Fig. 1 shows a prior art spray gun for paint 1 of gravity feeding type, has disclosed this spray gun for paint in the patent application (publication number is: WO 98/32539) that we await the reply jointly, and the content of this patent application is incorporated herein, for your guidance.

Spray gun 1 comprises a body 2, the one handle 3 that extends from the rear end of body downwards and at a nozzle 4 of the front end of body.Manually operate spray gun 1 by the trigger 5 on the side that is pivotably mounted on rifle.

One canister 6 is equipped with the paint (or similar material) that spray gun will be discharged, and this canister is positioned on the top of body 2, and with extend through the inner passage (invisible) of spray gun and be communicated with to nozzle 4.

In use, spray gun 1 is connected to a compressed air source (not shown) via a connector 7 at the lower end of handle 3, so that when the user spurs on trigger 5, pass spray gun compressed air is delivered to nozzle 4.Consequently, the paint that transmits from jar 6 atomizes when leaving nozzle 4 under gravity, and forms a spraying with the compressed air that comes out from nozzle 4.

Now see also Fig. 2 to 4, canister 6 comprises the disposable lining of an outer container 8,9, a disposable lid 10 and a collar 11.Lining 9 is corresponding with the inside of container 8 (and closely cooperating therein) in shape, and has a narrow edge 12 at the open end place, and this edge is placed on the top edge of container 8.

Lid 10 has a sagging shirt rim 13 at peripheral region, and this shirt rim sucking fit is in the openend of lining 9, and lid 10 also has a centre bore 14, and a spout 15 that forms fluid issuing extends from this centre bore.Spout 15 is provided with the part 16 that stretches out at its free end, and this part 16 that stretches out forms the part that a bayonet socket connects.Hole 14 is hidden by a filter screen 17 at the place, the inner of spout 15, but this filter screen sucking fit perhaps can be lid 10 all-in-one-piece parts in skirt section 13.Perhaps, filter can sucking fit in spout 15.

Lid 10 is firmly held in position suitable on the container 8 by circumferential collar 11, and the described collar 11 screw threads are being threaded on the container 8 on the top of lid 10.At the state that assembles, lining 9 and lid 10 are formed for holding and will be delivered to the paint of nozzle 4 or a liquid reservoir of other liquid via spout 15.

Canister 6 is attached to spray gun 1 by using a joint 18, is independent of canister 6 ground and shows this joint 18 in Fig. 6 and 7.Joint 18 is tubular elements, and it internally is formed with a socket 19 at one end, and has another part that the bayonet socket of the spout 15 that is used to be attached to lid 10 connects.At the other end 20 places, the standard accessory (being generally a screw thread) that the shape of joint 18 is made for the gun oil paint can is complementary.

Container 8 usefulness of canister 6 for example polyethylene or polyacrylic plastic material are made, and can be translucent (as shown in Figure 2) or opaque, and can be any suitable sizes.In order to use with spray gun for paint, can use volume usually is 250,500 or the container 8 of 800ml, but if desired, also can use other size.

In the present embodiment, container 8 is the cylindrical of 8A place sealing at one end substantially.The other end opens wide, and sidewall 8B is formed with an external screw thread 8C.Substrate 8A is straight, so that container 8 stand on the flat surface with need not to support, and is formed with a center airport 8D.In inside, sidewall 8B slightly inwardly becomes a tapering from open end to substrate 8A.

Lining 9 is preferably transparent, and uses the single piece of plastic material thermoforming, and described plastic material is polyethylene or polypropylene preferably.The shape of lining 9 is decided by the interior shape of container 8 and matches.With the inner classes of container 8 seemingly, lining 9 is the cylindrical of end 9A sealing substantially, and sidewall 9B slightly inwardly becomes a tapering from mouth towards blind end 9A.

Substrate or blind end 9A be rigidity comparatively, but sidewall 9B is flexible and can collapses.However, lining 9 can need not to stand on the substrate 9A with supporting, and sidewall 9B extends shown in Fig. 2 to 4 with upright.

When lining 9 was collapsed, the substrate 9A of relative stiffness kept its shape, but can move to marginal portion 12 owing to collapsing of sidewall 9B, as shown in Figure 5.Sidewall 9B to be collapsing with the similar mode of a polybag, and can not destroy (for example because division, tear or break).

Lid 10 also forms with for example polyethylene or polyacrylic plastic material, and can form by injection-molded technology.Lid 10 also can be translucent or opaque, and coloured.The collar 11 can be molded plastic member, and perhaps it can be a mach metal (for example aluminium) member.Joint 18 can be metal or plastic member, and for example can be formed from aluminium and be subjected to anodization or plating.

In order to use

canister

6,20 places are attached to spray gun to joint 18 in the end, and are held in place.Then, when canister 6 is taken apart as shown in Figure 2 like that, lining 9 is pushed in the container 8.Then paint is poured into lining 9, and if necessary, it is mixed with other toner, curing agent and diluent (solvent).Then lid 10 pushing is put in place, and collar 11 tightly, so that lid 10 is held in place.

Like this, the top of lining 9 just is sandwiched between the sidewall 8B of the shirt rim 13 of lid 10 and container 8, and the edge 12 of lining 9 just is sandwiched between the apical margin and the collar 11 of container 8, as shown in Figure 4.

Then, spray gun 1 is come from its normal operating position inversion as shown in Figure 1,, spray gun 1 can be backed its normal operating position afterwards, thereby use in common mode so that the end of spout 15 can be attached to joint 18.

Along with paint is taken from lining 9, the sidewall 9B of lining 9 collapses owing to the reduction of pressure wherein.Rigidity the substrate 9A of many lining 9 keeps its shape so that lining 9 tends to along the longitudinal but not laterally collapses, and reduces the paint bag by this and clamped possibility in lining 9.

The user before can being chosen in operation spray gun 1 finds time the air in the lining 9, although this not necessarily.But, because do not have the danger that air enters spray gun 1 from canister 6, can increase the angular range that spray gun 1 will be worked satisfactorily so do so really.For evacuate air in lining 9, should when still being in upside down position, spray gun 1 activate the trigger 5 of spray gun 1.

After use, when wanting cleaning spray guns 1, spray gun 1 can be inverted again from its operating position as shown in Figure 1, cut off air line, and momently actuated triggers 5 so that the paint in the spray gun 1 flow back in the lining 9 of canister 6.Come to pull down jar 6 by unload spout 15 from joint 18 then, and joint 18 is still stayed on the spray gun 1 from spray gun 1.

Pull down the collar 11 from container 8, pull out lid 10 together with its lining of collapsing 9 then, as shown in Figure 5.Lid 10 (comprising filter 17) and lining 9 are dropped, and the container 8 and the collar 11 are still clean, and are ready to reuse with a new lining 9 and a lid 10.Only need cleaning spray gun 1 self, thereby the amount of solvent for use is obviously reduced.

Because take off and abandon lining 9 with the state of collapsing to a certain degree, and this moment, lid 10 also was held in place, so reduced the danger that untapped paint overflows from jar 6 significantly.In addition, because lining 9 is dropped with the state of collapsing, the required amount of space of lining that collection of living in was used 9 is also minimum.

As will become from the foregoing description clear, the structure that forms the disposable lining 9 of the liquid reservoir hold the paint that will be sprayed or other liquid and lid 10 has greatly reduced when changing the liquid that will spray or desired cleaning amount when putting spray gun 1 well when darg finishes.

But, such situation may take place, the zone of japanning to require than the open ended paint that more manys volume of liquid reservoir.In these cases, the user must pull down jar 6 from spray gun 1, discharges the collar 11 and takes off lid 10 can fill it up with liquid reservoir.The user then, lid 10 must be reapposed on the openend of lining 9, ressemble the collar 11, and jar 6 is attached to spray gun 1 again, so that can proceed spraying.This is very consuming time, and the danger that exists paint to overflow and/or polluted when taking off lid 10.

Some users may attempt being undertaken filling by 15 pairs of liquid reservoirs of spout again, but this in addition slower, and because the small size of spout 15 and the existence of filter 17 can increase the danger of overflowing.Also having, be filtered any solid particle that device 17 holds back when filling when being attached to liquid reservoir on the spray gun 1 again when passing spout 15, is to be positioned on the filter 17 incorrect sides.As a result, these particles can be entrained in the liquid that is delivered to spray gun, and this may cause stopping up in the spray gun, perhaps causes spraying again any surperficial enamelled coating by these particle contaminations.

For fear of these problems, some users fill two or more liquid reservoirs with identical liquid, when spraying large tracts of land they are assembled on the spray gun in turn.This makes the user can change liquid reservoir, and sprays identical liquid continuously.But, it is consuming time filling and assemble several liquid reservoirs, and increases job costs.Therefore, each liquid reservoir has disposable lining and the lid that is dropped after spraying, and it is waste such disposables that identical liquid is used a plurality of liquid reservoirs, and the jar and the collar that require the user to have sufficient amount can use, to assemble these liquid reservoirs.

Now see also Fig. 8 to 12, there is shown one first embodiment of the present invention, it makes the user add paint and to need not to dismantle liquid reservoir to liquid reservoir.For convenience's sake, all use the like numerals will of 100 series indicate with Fig. 1 to 7 in the corresponding part of part, and from top description, be appreciated that the structure and the working method of similar part, and they no longer be described in further detail.

As shown in the figure, canister 106 comprises the disposable lining of an outer container 108,109, a disposable lid 110 and a collar 111.They are assembled in the mode similar to previous embodiment.According to the present invention, lid 110 has a center drilling 130, and this center drilling 130 has an outer tubular plug 131, and the part 132 of independently blocking a shot is set, jar 106 is connected to a spray gun (not shown).By perforate 130 is arranged on the center, relative one given free space can be done the size of perforate 130 maximum.

Block part 132 comprises a substrate 133, and this substrate is provided with the socket 134 with an internal thread 135, this internal thread 135 can with the external screw thread engagement on the plug 131 of complementation, part 132 is fixed in lid 110 releasedly in the close mode of liquid blocking a shot.Will be understood that if necessary, additional sealing device can be set leak to place.For example, the outer end of plug 131 can be positioned at block part 132-O shape encloses (not shown) and engages.

Block part 132 also has a spout 115, and this spout 115 extends upward from substrate 133, and is provided for being connected to via an inlet attack (not shown) that is fixed in spray gun releasedly the fluid outlet of the fluid inlet on the spray gun 101.In the present embodiment, inlet attack is fixed in engaging of the bayonet arrangement portion (not shown) of block part 132 by complementation on the bayonet arrangement portion 116 on the spout 115 and the inlet attack releasedly.

Bayonet arrangement portion requires relative inlet attack to screw a whole circle less than block part 132, with fixing/discharge liquid reservoir, block part 132 then requires the whole circle of relative liquid reservoir more than block part 132 with screw thread on the plug 131.By this way, just can prevent when the part 132 of will blocking a shot is attached to spray gun or pulls down block part 132 from spray gun from the block part 132 unexpected or involuntarily screw out liquid reservoir.

Shown in Figure 10 and 12, the internal diameter of spout 115 is significantly less than the diameter of the center drilling in the liquid reservoir lid 110 130.For example, in the present embodiment, the internal diameter of spout 115 is that (1/2 ") roughly, the internal diameter of center drilling 130 then are 53mm (2 ") roughly to 10-15mm.Spout 115 is coaxial with center drilling 130, so that when being connected to spray gun, liquid reservoir aligns with the central longitudinal axis of spray gun.As a result, liquid reservoir and wherein the weight of liquid just distribute equably reaching balance, thereby can influence the operation of spray gun sharply.

Perforate 130 relatively when liquid reservoir is connected to spray gun desired flowing amplify, and allow filling liquid reservoir fast by these perforate 130 interpolation liquid when block part 132 is pulled down jar 106.As a result, if wish the liquid reservoir of filling during being suitable for, then can by outward winding plug 131 with block a shot being connected and pulling down jar 106 between the part 132 from the part 132 of blocking a shot, with can be near perforate 130.Just can pass perforate 130 then liquid is added into liquid reservoir, and jar 106 is reconnected block spare 132 to the spray gun 101.

By this way, freely pour liquid reservoir into, just can fill liquid reservoir apace by liquid being passed the center drilling of amplifying 130.By this way, can be relatively easily add liquid, and need not to dismantle jar, and reduced liquid and overflow and contaminated danger to liquid reservoir.As will be appreciated, when filling liquid reservoir first when in use filling it up with liquid reservoir or before beginning spraying, all available hollow aperture 130 is added into liquid reservoir with liquid.

Perforate 130 also can allow to insert the contents that an instrument stirs liquid reservoir, mixes in liquid reservoir thereby can assemble after lid 110 is fixed in lining 109 at jar 106.By this way, just can further reduce the danger of overflowing.

One filter (not shown) can be arranged in the block part 132, to remove the impurity such as solid particle in the liquid.For example, can be arranged in the spout 115 or a filter is set in the socket 134, and make it when lid 110 is connected to block part 132, extend the inner of crossing spout 115.By this way, if filter is in use blocked, with regard to replaceable block spare 132.

Perhaps, when liquid reservoir adds liquid, a removable filter (not shown) can be set in center drilling 130.This filter can be an any kind, and preferably has a big surface area, thereby the liquid that can not reduce significantly to liquid reservoir adds.By this way, can not be used in the block part 132 filter is set, thereby reduce owing to filter in use stops up the danger of interrupting or being reduced to the liquid flow of spray gun.

Now see also Figure 13, wherein show one second embodiment of the present invention, wherein, use the like numerals will of 200 series indicate with previous embodiment in the corresponding part of part, and from the description that has provided, can easily understand the structure and the working method of similar part, and they will no longer be described in further detail.

In this second embodiment, lining 209 and lid 210 for good and all link together.For example, lining 209 and lid 210 can be formed integrally as a part by blowing.Perhaps, lining 209 and lid 210 can form dividually by molded, and link together by welding, other suitable manner bonding or that formation forever connects therebetween.

Can use by for good and all connecting the outer container and the collar that liquid reservoir that lining 209 and lid 210 form need not previous embodiment.Perhaps, the outer support member that some form can be set is protected lining 209, and improves when liquid reservoir adds liquid and liquid reservoir is connected to the spray gun (not shown) so that the stability of time spent.The support member (not shown) can comprise an aforesaid outer container and the collar.Perhaps, lid 210 can be formed with the structural portion of an outward flange (not shown) or type, and a stop sleeve or retainer can be fixed thereon releasedly to center on lining 209.

Can empty form supply liquid reservoir, before being connected to spray gun, fill by the perforate in the lid 210 230 for the user.Perhaps, the form that liquid can be housed is in advance supplied liquid reservoir, and comes perforate 230 in the sealing lid 210 by a removable closure member (not shown), all blocks 238 of a screw thread in this way of this closure member or the diaphragm that can stave such as the chaff band.When the diaphragm that can stave is set, can when being attached to liquid reservoir, block part 232 stave the diaphragm that can stave.

The liquid that quality can variation for storing and/or do not require the liquid (as priming paint or clear varnish) of accurate color-match, prefilled is favourable.Also can when taking off liquid reservoir, temporarily store by spray gun any untapped liquid by reseal the perforate 230 in the lid 210 with screw thread block 239 (when it is set) or any other suitable closure member.This can allow to use liquid by liquid reservoir is attached to spray gun again afterwards, and this is to have potential benefit to the liquid that can not solidify and harden in the relatively short period after using for the first time.Thereby liquid reservoir can be collapsed and remove any air before being attached to threaded cap 238.By this way, can prolong the life-span of the liquid of being stored.

Now see also Figure 14 and 15, the inlet attack that there is shown a block spare that substitutes and can use with liquid reservoir of the present invention.For convenience's sake, use the like numerals will of 300 series to indicate and the corresponding part of the part of previous embodiment, and from the description that has provided, be appreciated that the structure and the working method of similar part, and they no longer are described in further detail.

In the 3rd embodiment, the block spare 332 that is used for the liquid reservoir (not shown) is connected to the spray gun (not shown) is provided with the releasable connecting device that separates with spout 315.Jockey comprise on the opposite side that is arranged on spout 315 and with spout 315 isolated a pair of hook spares 339,340.Each hook spare the 339, the 340th, similar, and have a head 341,342 that strengthens, each head is respectively equipped with a scarf 341a, the 342a that terminates in a kerf flank 341b, 342b place.

Inlet attack 318 on the spray gun has an outward flange 343 in the outer end, it is used for joining with hook spare 338,339 association, and so that liquid reservoir is fixed in spray gun releasedly, and spout 315 is received in the socket 319.In the present embodiment, spout 315 is provided with outer ring rib 344, and all ribs provide liquid-tight seal in socket 319.But, will be understood that any appropriate sealing means can be set, as the one or more O shape circles in socket 319 and/or on the spout 315.

As Figure 15 best shown in, flange 343 comprises four arc recess 345,346,347,348, all arc recess around outer peripheral edges along circumferentially being evenly spaced apart so that recess 345,347 is toward each other, and recess 346,348 is toward each other.

Each recess 345,346,347,348 via the cam lobe 345a at their ends places, 346a, 347a, 348a in the counterclockwise direction (as shown in Figure 15) be directed to a flat segments 349,350,351,352, this flat segments terminates in an adjacency section 349a, 350a, 351a, 352a.

In use, for the part 332 of will blocking a shot is fixed in inlet attack 318, hook spare 338,339 aligns with a pair of relative recess 345,347 or 346,348 in the flange 343.Then, spout 315 is pushed socket 319, so that pass the recess 345,347 or 346,348 of alignment at the head 341,342 of the increasing of hook spare 338,339 ends.

Then, rotate block part 332,, and lock rib 341b, the 342b of head 341,342 are positioned at after flat segments 349,351 or 350,352 so that hook spare 338,339 is crossed cam lobe 345a, 347a or 346a, 348a relative to inlet attack 318.By this way, the part 332 of just will blocking a shot is fixed in inlet attack 318, and restriction cap assembly 332 separates with the axial of inlet attack 318.Can pull down block part 332 from inlet attack 318 by putting upside down above-mentioned operation.

As shown in figure 14, can be by the engagement of the external screw thread 335 on the plug 331 of the internal thread 335 of the socket in block part 332 substrates and center drilling 330 in the lid 310 of liquid reservoir, and the part 332 of will blocking a shot is fixed in liquid reservoir.Lid 310 and lining 309 can be fixed together shown in Fig. 8 to 12 releasedly, perhaps forever link together as illustrated in fig. 13.

Now see also Figure 16 and 17, wherein show two kinds of alternative structures that are used for the block part is fixed in releasedly liquid reservoir.For convenience's sake, use the label of 400 and 500 series indicate with previous embodiment in the corresponding part of part.

As shown in figure 16, the perforate 430 in the lid 410 is provided with internal thread 450, and the substrate of block part 432 is provided with the plug 451 of a band external screw thread 452, described external screw thread 452 can with screw thread 450 engagement, part 432 is fixed to liquid reservoir releasedly blocking a shot.

In Figure 17, lid 510 and block part 532 are provided with complementary structural portion, can utilize snap action to engage these complementary structural portion, are fixed in liquid reservoir releasedly with the part 532 of will blocking a shot around perforate 530.In the present embodiment, Hu Bu structural portion is included in outer fin 560 on the plug 531 and the internal recess 561 in socket 534.But, will be understood that, can be adopted any suitable structural portion.

Concerning those those skilled in the art that, other structure that is used for the block part is fixed to liquid reservoir releasedly will be conspicuous.

As will be understood that now, the invention provides the liquid supplying apparatus that uses with spray gun, this liquid supplying apparatus comprises a liquid reservoir, this liquid reservoir have amplify, fill perforate and can be connected to one of the liquid reservoir part of independently blocking a shot fast, and this block spare is provided with the spout that the fluid issuing that is connected to spray gun is provided.By this way, liquid reservoir can be pulled down from the block part, be added into liquid reservoir so that liquid can pass center drilling in simple mode, and the danger of overflowing reduces also.In addition, by perforate being arranged on the center of free space, can make the size maximum of perforate.Also have, the outlet by the part of will block a shot is arranged to this perforate coaxial, thereby liquid reservoir just aligns with the central longitudinal axis of spray gun with the realization balance, just can influence the processing of spray gun sharply.

Will be understood that also the exemplary embodiments described here wants scope and the application that illustrates that the present invention is different, and can adopt the characteristic of embodiment independently, perhaps any further feature with identical or different embodiment combines.

In addition; although believe described here and shown in one exemplary embodiment represented applicant's best mode known today; but will be understood that; the present invention is not limited thereto, and can as the spirit of the present invention described here and protection domain with summing up in make various changes and modifications.

Claims

1. liquid provisioning component that uses with the sprayer unit such as spray gun, this assembly comprises a liquid reservoir of using for the liquid that will spray, this liquid reservoir has one first end, with isolated one second end of first end, end wall at the first end place, extend to a sidewall of second end from end wall, in end wall from inside perforate of sidewall and the block part that is fixed to liquid reservoir around perforate releasedly, this block spare has a spout, this spout provides a fluid that is communicated with liquid reservoir by perforate outlet, wherein, spout can be connected to spray gun, liquid reservoir is connected to the fluid inlet of spray gun, and liquid reservoir can be pulled down from the block part, to add fluid by perforate to liquid reservoir.

2. assembly as claimed in claim 1 is characterized in that, the relative spout of the perforate in the liquid reservoir is amplified.

3. assembly as claimed in claim 1 or 2 is characterized in that liquid reservoir can be collapsed when liquid is extracted.

4. assembly as claimed in claim 3 is characterized in that it is flexible that sidewall is compared end wall, producing distortion, thereby make liquid reservoir from second end towards first end along axially collapsing.

5. assembly as claimed in claim 4 is characterized in that, liquid reservoir is provided with the substrate of comparison rigidity at the second end place, so that liquid reservoir can be inverted and stand in the substrate, adds liquid for the perforate of passing through in the end wall.

6. each described assembly in the claim as described above is characterized in that liquid reservoir forms single part.

7. assembly as claimed in claim 5 is characterized in that substrate and sidewall form single part, and end wall forms a part independently that is fixed in sidewall.

8. assembly as claimed in claim 7 is characterized in that substrate and sidewall form the container of an open-top, and end wall then forms a lid of container.

9. assembly as claimed in claim 8 is characterized in that lid is permanently fixed to container.

10. assembly as claimed in claim 9 is characterized in that, lid welds or is glued on the container.

11. assembly as claimed in claim 8 is characterized in that, lid is fixed to container releasedly.

12. assembly as claimed in claim 11 is characterized in that lid is clamped on the container.

13. each described assembly in the claim is characterized in that as described above, block part threaded engagement is on liquid reservoir.

14., it is characterized in that the block part is fastened on the liquid reservoir as each described assembly in the claim 1 to 12.

15. assembly as claimed in claim 13 is characterized in that, the block part comprises a substrate that forms a socket, and this socket is provided with the internal thread that can mesh with an external screw thread plug that defines perforate in the liquid reservoir.

16. assembly as claimed in claim 13 is characterized in that, the perforate in the liquid reservoir has an internal thread, the block part have one be provided with can with the substrate of the male thread portion of this internal thread engagement.

17. assembly as claimed in claim 2 is characterized in that, the diameter of spout is less than half of opening diameter.

18. assembly as claimed in claim 17 is characterized in that, the diameter of spout is less than 1/3rd of opening diameter.

19. assembly as claimed in claim 18 is characterized in that, nozzle diameter is less than 1/4th of opening diameter.

20. assembly as claimed in claim 19 is characterized in that, the diameter of perforate is 50-60mm, and the diameter of spout is 10-15mm.

21. each described assembly in the claim is characterized in that liquid reservoir has a central longitudinal axis as described above, being centered close on this longitudinal axis of perforate.

22. assembly as claimed in claim 21 is characterized in that, spout is coaxial with perforate.

23. each described assembly in the claim is characterized in that as described above, the block part is connected to sprayer unit releasedly.

24. assembly as claimed in claim 23 is characterized in that, block part and sprayer unit are provided with the bayonet type structural portion that association joins.

25. assembly as claimed in claim 24 is characterized in that, sprayer unit is provided with a socket with the admittance spout, and the bayonet type structural portion can engage so that spout is remained in the socket.

26. assembly as claimed in claim 25 is characterized in that, the bayonet type structural portion can be bonded in the socket.

27. assembly as claimed in claim 26 is characterized in that, spout is provided with relative bayonet socket projection at free end, and these bayonet socket projections are received within the latch notch groove in the socket.

28. assembly as claimed in claim 25 is characterized in that, the bayonet type structural portion can be bonded on the socket outside.

29. assembly as claimed in claim 28 is characterized in that, socket can have an outward flange, and this outward flange can be assisted with a pair of hook spare that stretches out from the block part on the opposite side of spout and be joined.

30. each described assembly in the claim is characterized in that as described above, the block part comprises a filter that is used for removing contained any the undesired solid particle of the liquid that extracts from liquid reservoir.

31. assembly as claimed in claim 30 is characterized in that filter is arranged in the spout.

32. assembly as claimed in claim 30 is characterized in that, filter is provided with in the block part, the inner of crossing spout with extension.

33. each described assembly in the claim is characterized in that as described above, supplies liquid reservoir with the form that fills liquid in advance, and its perforate sealing is just opened when wanting to use liquid.

34. assembly as claimed in claim 33 is characterized in that, utilizes a removable closure member or a diaphragm that can stave to come seal and opening.

35. assembly as claimed in claim 34 is characterized in that, diaphragm breaks when the block part is attached to liquid reservoir.

36. assembly as claimed in claim 33 is characterized in that, the block part is suitable for sealed open and just opens when wanting to use liquid.

37. assembly as claimed in claim 36 is characterized in that, the block part is provided with a removable part, with close jet.

38. assembly as claimed in claim 36 is characterized in that, the outer end of crossing spout is provided with a diaphragm that can stave.

39. assembly as claimed in claim 38 is characterized in that, staves diaphragm when spout is attached to sprayer unit.

40. liquid provisioning component that uses with the sprayer unit such as spray gun, this assembly comprises a liquid reservoir of using for the liquid that will spray, this liquid reservoir has one first end, with isolated one second end of first end, end wall at the first end place, extend to a sidewall of second end from end wall, in end wall from an inside perforate of sidewall and a block part, this block spare has a substrate and a spout, and be fixed in liquid reservoir releasedly by the joint of substrate and the complementary threads on the end wall of perforate, and spout extends away from liquid reservoir from substrate, and the fluid outlet that spout provides relative perforate cross section to reduce, and a fluid that can be connected on the spray gun enters the mouth so that liquid reservoir is connected to spray gun, wherein, liquid reservoir can be pulled down from the block part, to add fluid by perforate to liquid reservoir.

41. assembly as claimed in claim 40 is characterized in that, liquid reservoir is collapsed when in use liquid is extracted.

42. as claim 40 or 41 described assemblies, it is characterized in that liquid reservoir has a central longitudinal axis, the coaxial setting of relative this longitudinal axis of perforate with spout.

43., it is characterized in that liquid reservoir and the screw thread of block on the part require to screw more than a whole circle with fixing liquid reservoir as claim 40 or 42 described assemblies, the block part is less than whole a circle and is connected to spray gun releasedly by requiring to screw.

44. combine, be used for to spray gun or similar device supply liquid-liquid reservoir and liquid reservoir is connected to a block part of spray gun, this liquid reservoir has one first end, with isolated one second end of first end, end wall at the first end place, extend to a sidewall of second end from end wall, in end wall from sidewall inside one fill fast a perforate and a block part, can add liquid to liquid reservoir by described perforate, and the perforate mobile requirement when liquid reservoir in use is connected to spray gun is relatively amplified, described block spare has a substrate and a spout, and the joint of the structural portion by substrate and the complementation on the end wall of perforate and be fixed in liquid reservoir releasedly, and spout extends away from liquid reservoir from substrate, and the fluid outlet that spout provides relative perforate cross section to reduce, and a fluid that can be connected on the spray gun enters the mouth so that liquid reservoir is connected to spray gun, wherein, liquid reservoir can be pulled down from the block part, to add fluid by perforate to liquid reservoir.

45. combination as claimed in claim 44 is characterized in that, liquid reservoir is collapsed when in use liquid is extracted.

46., it is characterized in that liquid reservoir has a substrate at second end, and can freely stand in the substrate as claim 44 or 45 described combinations.

47. the combination shown in claim 46 is characterized in that, substrate, sidewall and end wall for good and all link together.