JP6107162B2 - Cleaning medium, dry cleaning housing and dry cleaning device - Google Patents

Description

  The present invention relates to a cleaning medium, a dry cleaning casing, and a dry cleaning apparatus for dry cleaning in which a cleaning medium is caused to fly by a swirling airflow in an internal space of a casing and cleaned by contacting or colliding with an object to be cleaned.

Patent Document 1 discloses a handy-type dry cleaning device that can arbitrarily change a cleaning position for an object to be cleaned.
This cleaning device has an internal space in which the cleaning medium circulates and flies and an opening for causing the cleaning medium flying in the internal space to collide with the object to be cleaned.
Further, a ventilation path for passing air from the outside to the internal space, an intake port connected to an intake means such as a vacuum cleaner, and a perforated metal such as punching metal that allows the removed object removed from the object to be cleaned to pass to the intake port side. Means.
The internal space, the opening, the air passage, the air inlet, and the porous means are integrally formed in a cleaning casing connected to the air suction means and the flexible hose.
The cleaning position can be easily changed by holding and moving the cleaning housing by hand.

When the intake means is operated, a large amount of external air flows into the internal space mainly from the opening, and the internal space is in a negative pressure state.
When a predetermined amount of the cleaning medium is sucked from the opening in this negative pressure state, the cleaning medium sticks to the porous means and is held inside the cleaning casing.
In this state, when the opening is covered with the part to be cleaned of the object to be cleaned, external air flows in at a high speed from the air passage having a smaller cross-sectional area than the opening, and a swirling airflow is generated in the internal space, and the porous means is stretched The attached cleaning medium flies.
The cleaning medium that continues to circulate in the interior space rides on the airflow flowing at high speed from the ventilation path and flies linearly toward the opening at high speed, and collides with the object to be cleaned exposed at the opening to remove dirt. To do.

Since it is a handy type, the cleaning area that can be performed at one time is limited to the size of the opening, and it is necessary to enlarge the cleaning area while moving the cleaning housing.
On the other hand, as the cleaning medium repeats collision, wear and destruction (breaking) progress and become smaller, and the cleaning medium passes through the porous means together with the removed substance and is collected on the intake means side.
Accordingly, the amount of the cleaning medium flying in the internal space decreases as the cleaning time elapses. The amount of cleaning medium has a “flight quantity appropriate for removal of dirt on the object to be cleaned”.
In order to continue the cleaning operation (cleaning process) while maintaining a good cleaning capability, it is necessary to replenish the housing with a cleaning medium as appropriate.
When replenishing the cleaning medium, in the cleaning device described in Patent Document 1, the casing is removed from the object to be cleaned, the cleaning operation is temporarily interrupted, a predetermined amount of the cleaning medium is sucked from the opening, and the opening is then cleaned. The cleaning operation is resumed by hitting.

As a method of supplying the cleaning medium to the internal space without interrupting the cleaning operation, it is conceivable to supply the cleaning medium from an air passage.
However, it is necessary to put a predetermined amount of the cleaning medium into the air passage with, for example, a funnel-shaped member.
Since the cleaning medium is thin and small, it is easy to scatter, is troublesome to handle, and may require an assistant.
Patent Document 2 discloses a system in which a cartridge containing a cleaning medium is mounted on a housing and the cleaning medium is supplied to an internal space by opening and closing a valve.
However, according to this method, it is possible to reliably supply a pre-weighed cleaning medium, but the structure of the housing is inevitably complicated, and the cost is increased.

Patent Document 3 proposes a method of cutting a packaging member that wraps an object to be cleaned and using the cut piece as a cleaning medium.
However, in this method, since the amount of the cut pieces is not constant, it is difficult to supply an appropriate amount of the cleaning medium. In addition, some materials cannot be easily cut depending on the type of packaging member, and are difficult to fly as a cleaning medium.
Further, if the cutting medium cannot be completely cut, it is difficult to secure an amount of the cleaning medium that can sufficiently remove the dirt on the object to be cleaned, and it is difficult to supply the cleaning medium properly.

In addition, in the conventional cleaning medium supply, a plurality of cleaning media are sucked into the housing in a dispersed state regardless of whether the inlet is an opening or an air passage. From the stage, it individually impacts the object to be cleaned.
For this reason, an improvement in cleaning ability could not be expected.

  The present invention has been made in view of such a current situation, and can easily and surely supply a necessary predetermined amount of cleaning medium, contribute to improving the efficiency of the cleaning operation, improve the cleaning capability, and perform the cleaning operation. The main object is to provide a cleaning medium that can be supplied without interruption.

In order to achieve the above object, the present invention is used in a dry cleaning apparatus that causes a plurality of cleaning media to fly by a swirling airflow in an internal space and applies the cleaning media to a cleaning target to clean the cleaning target. A cleaning medium, which can be introduced into the internal space in a group or in a lump state, is formed so as to be separated by the action of an external force after introduction, and the plurality of cleaning media are wrapped with a wrapping material, The wrapping material has a configuration or a material that ruptures or collapses itself by contact with an airflow in the internal space, an airflow entering the internal space from the outside, or a member that guides the airflow .

According to the present invention, it is possible to easily and surely supply a necessary predetermined amount of a cleaning medium without scattering, and improve the cleaning ability.
In addition, the cleaning medium can be supplied easily and reliably without interrupting the cleaning operation, and the efficiency of the cleaning operation can be improved.

It is a schematic sectional drawing which shows the state which set the cleaning medium lapped in the dry cleaning housing | casing which concerns on the 1st Embodiment of this invention to the inlet. It is a schematic diagram which shows the structure of wrapping. It is an actual wrapping photographic image. It is a schematic sectional drawing which shows the state which the cleaning medium flies with a group, and collides with a cleaning target object. It is a schematic sectional drawing which shows the state which collides with a washing | cleaning target object while the washing | cleaning medium circulates and fly after a first attack. It is a photographic image which shows the lapping residue on the separation plate in the state where the cleaning operation is stopped. It is a schematic sectional drawing which shows the state in which the washing | cleaning medium collides with a washing | cleaning target object in the supply system from the conventional inlet. It is an experimental characteristic figure which shows the relationship between the supply method of a flaky cleaning medium, and the peeling profile of wax. It is an experimental characteristic figure which shows the relationship between the supply method of a flaky cleaning medium, and the peeling depth of a wax. It is a schematic sectional drawing which shows the state in which the flaky washing | cleaning medium collides with a washing | cleaning target object in the supply system from the conventional opening part. FIG. 5 is a schematic cross-sectional view showing a state in which a lamellar cleaning medium collides with an object to be cleaned in lapping supply from an opening. It is a schematic sectional drawing which shows the state in which a granular washing | cleaning medium collides with a washing | cleaning target object in the lapping supply from an opening part. It is an experimental characteristic figure which shows the relationship between the supply method of a granular washing | cleaning medium, and the peeling weight of a wax. It is an experimental characteristic figure which shows the relationship between the supply method of a granular cleaning medium, and the peeling profile of a wax. It is a schematic sectional drawing which shows the state in which a granular washing | cleaning medium collides with a washing | cleaning target object in the wrapping supply from an inlet. It is a schematic sectional drawing which shows the state in which a granular washing | cleaning medium collides with a washing | cleaning target object in the supply system from the conventional inlet. It is a schematic sectional drawing which shows the state in which a granular washing | cleaning medium collides with a washing | cleaning target object in the supply system from the conventional opening part. It is a figure which shows the washing | cleaning medium which adhered and formed the 1st group thru | or lump. It is a schematic sectional drawing which shows the state which set the cleaning medium lapped in 2nd Embodiment to the inlet. It is a perspective view of a wrapping bursting means. It is a schematic sectional drawing which shows the state which set the cleaning medium lapped in 3rd Embodiment to the inlet. It is a top view which shows the wrapping material in 4th Embodiment. It is a figure which shows the principal part of a dry-type cleaning apparatus. It is a figure for demonstrating the cleaning operation | movement in the dry-type cleaning apparatus shown in FIG. It is a figure for demonstrating an example of the cleaning by the dry cleaning apparatus. It is a figure which shows the principal part of the dry cleaning apparatus which concerns on a modification. It is a principal part expanded sectional view which shows the airtight state of the opening part at the time of use of the dry cleaning apparatus.

Embodiments of the present invention will be described below with reference to the drawings.
The first embodiment will be described with reference to FIGS. Before describing the cleaning medium according to the present invention, first, the configuration and cleaning mechanism of the dry cleaning apparatus according to the present embodiment will be briefly described.
As shown in FIG. 23, a dry cleaning casing 10 having a mesh-like separation plate 10C as a porous means inside is connected to a suction device 20A by a flexible intake duct 20B through an intake port 10J.
A cylindrical inner cylinder member 10D that defines a swirling axis of the swirling airflow is provided at the inner center of the upper housing 10A.
A rectangular opening 10E is formed in the cylindrical portion of the upper housing 10A, and an inlet 10F as a ventilation path is formed.

When the suction device 20A is operated with the opening 10E opened, a large amount of external air mainly enters the upper housing 10A from the opening 10E as shown in FIG.
Since the air that has entered is sucked through the separation plate 10C, the annular internal space defined by the inner cylindrical member 10D of the upper housing 10A has a negative pressure.
Conventionally, in such a state, the cleaning medium PC is sucked from the opening 10E into the housing. The suctioned cleaning medium PC is adsorbed and held on the separation plate 10C by a negative pressure.

As shown in FIG. 24A, when the opening 10E is applied to the object to be cleaned in this state, external air enters at a high speed from the inlet 10F, and a swirling airflow RF is formed. The cleaning medium PC circulates and flies through the internal space with a swirling airflow.
The cleaning medium is accelerated by the high-speed airflow from the inlet 10F, flies linearly, and collides with the object to be cleaned exposed to the opening 10E. This operation is repeated to remove the dirt on the object to be cleaned.
The removed removed matter (dirt) passes through the separation plate 10C to the intake port side.

As described above, since the amount of the cleaning medium PC decreases due to wear or the like, it is necessary to supply (supplement) the cleaning medium into the housing at an appropriate timing in order to maintain a good cleaning function.
If the cleaning operation is interrupted by separating the opening 10E from the object to be cleaned each time the cleaning medium is replenished as in the conventional case, the efficiency of the cleaning operation is reduced.
In the present invention, in order to solve this problem, a predetermined amount of the cleaning medium weighed in advance is formed so as to maintain a group or a lump state, and in this state, it is put into the internal space of the casing.

One example is wrapping.
Here, “wrapping” refers to a bag-like shape in which the cleaning medium is contained in an arbitrary weight, and a bag that is completely sealed after containing or filling a plurality of cleaning media in the bag is easily folded and folded. It means to include various forms such as those that can be dismantled.
As shown in FIG. 1, when the cleaning medium is replenished to the internal space, the wrapping WRP is put into the inlet 10F with the opening 10E in contact with the cleaning object CO.
As shown in FIG. 2, the wrapping WRP includes an arbitrary weight (predetermined amount) of the cleaning medium PC and a wrapping material (packaging material) 30 that wraps the assembly of the cleaning media.
Although the cleaning medium PC has substantially the same size, for the sake of easy understanding, the size of the cleaning medium PC is different in the same casing.

The cleaning medium PC in the present embodiment is formed as a rectangular piece (a thin piece) with a polyethylene terephthalate (PET) film.
The wrapping material 30 is made of 0.02 mm thick dried starch (a burrow wafer; manufactured by Yamamoto Oblate).
As the wrapping material, a sheet-like member having a thickness of 0.1 mm or less is desirable.
After a predetermined amount of the cleaning medium PC is weighed, the wrapping material 30 is filled, and the tip of the opening of the wrapping material 30 is wetted with water and sealed. FIG. 3 shows the actual shape of the wrapping WRP.
Although not shown, the inner wall of the inlet 10F has a low friction coating made of molybdenum disulfide so that the wrapping WRP is not broken unexpectedly before the introduction into the inlet 10F is completed and the cleaning medium is not scattered.

When the wrapping WRP is put into the inlet 10F during the cleaning operation in which the opening 10E is closed by the cleaning object CO, the wrapping WRP is sucked into the internal space by an air flow.
That is, by wrapping, a plurality of cleaning media PC can be introduced into the internal space in a group or a lump.
The wrapping material 30 made of an oblate is instantaneously broken by the action of an external force such as an airflow pressure or friction when moving the inlet 10F after introduction.
As shown in FIG. 4, the plurality of cleaning media PC that have been wrapped are released from the lapping state in the internal space, but because the initial velocity is given in a group by the high-speed airflow flowing from the inlet 10F, The object to be cleaned CO collides with the group of states.
Hereinafter, the collision of the group with the cleaning object CO is referred to as “first attack”.

As shown in FIG. 5, the group of cleaning media PC is scattered after the collision (after the first attack), and repeatedly collides with the object to be cleaned CO while circulating on the swirling airflow RF.
A group of cleaning media PC after the first attack is not dispersed at a stretch, and the group amount is gradually reduced.
That is, after the first attack, the attack with the group of cleaning media PC is repeated.
The wrapping material 30 itself ruptures and becomes ball-shaped.

FIG. 6 is a photograph of the residue on the separation plate 10C after the suction device 20A is stopped. The wrapping material 30 remains as a wrapping residue in a ball shape together with the cleaning medium and can be easily removed.
Alternatively, the wrapping material 30 that has been ruptured is small and shattered after the cleaning is completed, and is discharged through the separation plate 10C.

By discharging the used cleaning medium regularly or at regular intervals and introducing new lapping into the housing again, it becomes possible to continuously remove dirt on the surface to be cleaned over a large area in a short time. .
As described above, the wrapping material 30 acts to prevent spillage and scattering when introduced into the housing, and also to accelerate the cleaning medium in a group.
Since the wrapping material 30 is broken and automatically discharged after the role is finished, the wrapping material 30 remains in the internal space and does not continue to fly, and does not prevent cleaning with the cleaning medium.

FIG. 7 shows a supply state of a conventional flaky cleaning medium PC.
Since the plurality of cleaning media PC are sucked from the inlet 10F in a dispersed state, the initial collision with the cleaning object CO is individual.
Further, in this supply method, there was a case where the cleaning medium was caught in the gap of the inlet 10F.
The sandwiched cleaning medium becomes a factor that disturbs the swirling airflow inside the casing, and may leave behind dirt.

FIG. 8 and FIG. 9 are experimental characteristics showing the peeling performance of the dirty surface of the cleaning object CO when the flaky cleaning medium PC is supplied by wrapping and when supplied in a scattered state (indicated as thin piece supply). FIG.
FIG. 8 is a diagram showing a peeling profile in the relationship between depth and position in wax peeling, and FIG. 9 is a diagram showing a comparison between the total average depth and the maximum depth.
In FIGS. 8 and 9, “flake supply” means supply in a state in which the cleaning medium is separated.

In the experiment, the same wax surface (manufactured by Ferris; File-A-Wax) was peeled off as the dirty surface, and the same dry cleaning casing was used.
The cleaning medium PC is a triacetyl cellulose (TAC) film piece.
The wrapping material 30 is a tissue paper having a thickness of 0.04 mm, and after filling a predetermined amount of the cleaning medium PC, the opening end portion was bent into a bag shape.
Both were introduced into the internal space from the inlet 10F.

  8 and 9, it can be seen that when supplied in a lapping state, the peel depth is larger and the range is wider than when supplied in a loose state.

The ruptured thin bag is attached to the separation plate after the turning is stopped, and can be easily removed.
This experimental result means that even if the supply amount of the cleaning medium PC is the same, the cleaning performance is high when lapped and supplied, so that the same cleaning area can be cleaned in a short time.
Moreover, that the peeling depth is large means that it contributes to the expansion of the application range of the type of the cleaning object CO.

The above experimental results show that, according to the considerations of the present inventors, when the wrapping is supplied, the impact force is markedly greater than the case where each cleaning medium PC collides in an individual or a small amount of lump by the first attack. This is thought to be because it grows.
This is considered to be because a cut is easily formed on the dirty surface of the cleaning object CO.
Once the cut surface is formed by the first attack, the removal or peeling of the dirty surface is accelerated at the individual collision of the cleaning medium PC.
In the conventional method of supplying in a separated state, since the cleaning medium PC individually collides from the initial stage, it takes time until the cut surface is formed.
Therefore, by supplying a group or lump in a lump by lapping, it is possible to quickly clean even dirt that is hard and has high adhesive strength.

In the above description, the cleaning medium PC is supplied from the inlet 10F. However, the same applies to the case where the cleaning medium PC is supplied from the opening 10E.
FIG. 10A shows a state in which a plurality of cleaning media PC are thrown into the housing in a state where the opening 10E is opened and the suction device 20A is not operated and the housing is tilted (conventional example). Is shown.
In this state, each cleaning medium PC exists in a group.
As shown in FIG. 10B, when the opening 10E is closed against the object to be cleaned CO and the suction device 20A is operated, the side where the cleaning medium PC is not in contact with the inner peripheral surface of the housing, that is, Start flying from the side with the lower binding force.

For this reason, the group of states collapses, and the initial collision with the cleaning object CO on the swirling airflow RF becomes a state in which they individually collide.
It takes some time for each cleaning medium PC to fly at substantially the same speed, which is a loss.

On the other hand, when supplied by wrapping, as shown in FIG. 11A, the suction device 20A can be inserted even when it is in operation.
Since the opening 10E was opened, it was observed that there was no airflow that swirled the wrapping WRP, and that the wrapping WRP remained at the input location in the housing while being swung by the airflow.
As shown in FIG. 11 (b), when the opening 10E is applied to the object to be cleaned CO and closed in this state, the wrapping WRP is swirled rapidly by the swirling airflow RF and ruptured in the middle.
The plurality of cleaning media PC released by the rupture of the wrapping material collide with the cleaning object CO as a group, and a first attack occurs.

If a plurality of wrapping WRPs are prepared at hand, when a cleaning medium needs to be replenished, it can be easily replenished without spilling a predetermined amount of cleaning medium by picking it with one hand and putting it in the inlet 10F. be able to.
For this reason, the cleaning medium can be easily and reliably supplied without adding a special mechanism for supplying the cleaning medium to the housing and without interrupting the cleaning operation.

  As described above, by wrapping and feeding a plurality of cleaning media PC from the inlet 10F, the cleaning media can be replenished without interrupting the cleaning operation, and a high cleaning function based on the first attack principle is provided. Can be obtained.

You may comprise the wall surface of the internal space of a housing | casing with a polytetrafluoroethylene (PTFE) resin.
Since the PTFE surface has good sliding properties, the flying start speed and the flying speed of lapping are improved, and the dirt on the surface to be cleaned can be removed efficiently and in a short time.
For the same reason, the wall surface of the internal space may be coated with a solid lubricant such as molybdenum disulfide or graphite.

In the above embodiment, the lamellar cleaning medium has been described, but the present invention can also be applied to a granular cleaning medium.
FIG. 12A shows a state where the granular cleaning medium PC is lapped and introduced from the opening 10E in a state where the suction device 20A is operated.
The shape of the cleaning medium PC is a grain shape having a random protrusion shape crushed by a crusher, but is shown here as a spherical shape for easy understanding.
Of course, a spherical cleaning medium PC may be used.

Since the opening 10E was opened, it was observed that there was no airflow that swirled the wrapping WRP, and that the wrapping WRP remained at the input location in the housing while being swung by the airflow.
As shown in FIG. 12B, when the opening 10E is applied to the object to be cleaned CO and closed in such a state, the wrapping WRP is swirled rapidly by the swirling airflow RF and ruptured in the middle.
The plurality of cleaning media PC released by the rupture of the wrapping material collide with the cleaning object CO as a group, and a first attack occurs.

An experiment was conducted to remove the wax (manufactured by ferris; File-A-Wax) with the same configuration as above.
[Experiment 1]
Filled with 6 g of melamine resin (TPS12; particle size approx. 2 mm; manufactured by Potters Ballotini) using 0.02 mm thick dry starch as wrapping material, then folded and wrapped the tip of the opening and introduced it into the internal space from the opening 10E did.
The wrapping burst instantaneously and the cleaning medium started to fly in a group, and the wax could be peeled off.

FIG. 13 and FIG. 14 show the wax peeling performance when the melamine resin is introduced into the casing in the form of particles and when it is introduced by wrapping.
In FIG. 13 and FIG. 14, “grain supply” means supply in a state where the cleaning medium is separated.
In the case of wrapping, it was divided into “wrapping 1” and “wrapping 2” twice in order to confirm the certainty of the ability.
It can be confirmed that when the wrapping is introduced, the wax can be peeled off with a large weight, and the ability to peel deeply is excellent.
Further, the ruptured thin bag is attached to the separation plate after the turning is stopped, and can be easily removed.

[Experiment 2]
Filled with 7g of melamine resin (XH16-20; particle size approx. 0.8mm; manufactured by IKK Shot) with 0.02mm thick dry starch as wrapping material, then folded and wrapped the tip of the opening, from the opening 10E into the internal space Introduced.
Functions and effects similar to those in Experiment 1 were confirmed.

[Experiment 3]
Filled with 6.5g of melamine resin (TT12-20; particle size approx. 1.2mm; manufactured by US Technology) using 0.02mm thick dry starch as wrapping material, then wraps and wraps the opening tip and opens the internal space from the opening 10E Introduced.
Functions and effects similar to those in Experiment 1 were confirmed.

FIG. 15 shows an example in which the granular cleaning medium PC is wrapped and supplied from the inlet 10F.
Also in this case, the same function and effect as when supplied from the opening 10E were obtained.
FIG. 16 shows an example in which the granular cleaning medium PC is supplied from the inlet 10F in a dispersed state.
In this case, as in the example described with reference to FIG. 7, the cleaning medium PC collides individually, and a strong cleaning function cannot be obtained.
In this supply method, when the particle size of the cleaning medium increases, there are many cases where the cleaning medium is caught in the gap of the inlet 10F. In this case, the cleaning quality becomes unstable.

FIG. 17 shows an example in which the granular cleaning medium PC is supplied from the opening 10E in a dispersed state.
In this case, as in the example described with reference to FIG. 10, the cleaning medium PC collides individually, and a strong cleaning function cannot be obtained.

In each of the embodiments described above, an example in which a plurality of cleaning media PC are supplied into the housing as a group or a lump by lapping has been described. However, as shown in FIG. You may make it adhere and supply as a lump of cleaning media GPC.
The size of the lump is a size that can be supplied from the inlet 10F or the opening 10E.
The cleaning medium GPC is a “slow agglomerate” assembled with a light adhesion force, and can be dispersed by an external force such as an air flow after being charged.
FIG. 18A shows an example in which flaky cleaning media PC are bundled, and FIG. 18B shows an example in which granular cleaning media PC are bundled.

A second embodiment will be described with reference to FIGS. 19 and 20.
In the said embodiment, the wrapping material 30 of wrapping WRP showed the example which is torn by slight impacts, such as airflow pressure, or a packaging shape collapse | crumbles.
This embodiment shows an example in which the cleaning medium can be quickly released and diffused even if the wrapping material has a certain level of strength.
The wrapping material of the wrapping WRP in this embodiment is composed of a thin plastic sheet.

As shown in FIG. 19, wrapping and rupturing means 32 is provided on the outer peripheral surface of the inner cylindrical member 10D that is the inner peripheral side of the swirling airflow as a disintegrating means for spreading the cleaning medium.
As shown in FIG. 20, the wrapping and rupturing means 32 includes a plurality of blades (projections) 34 disposed on the outer peripheral surface of the inner cylinder member 10D in the circumferential direction and the height direction. Each protrusion 34 is disposed so as to face the direction of the swirling airflow RF.

Even if the wrapping WRP thrown into the internal space is not easily torn, it is easily broken by the wrapping bursting means 32 in the internal space, and the cleaning medium is released and diffused as in the above embodiment.
Usually, since the cleaning medium continues to fly on the outermost periphery in the internal space, if a plurality of blades are disposed on the outermost periphery of the internal space, the flying cleaning medium interferes with the plurality of blades, and the rotation of the cleaning medium is disturbed. It becomes impossible to remove dirt from the object to be cleaned efficiently.

Therefore, by disposing the plurality of blades on the innermost periphery of the internal space, only the wrapping collides with the plurality of blades to rupture the wrapping.
The released cleaning medium keeps flying on the outermost periphery of the internal space, so that it is possible to efficiently remove the contamination of the object to be cleaned.
In the case of wrapping WRP that is broken by slight impact such as oblate, the cleaning medium may be broken before being introduced into the internal space due to careless operation by an operator, and handling is delicate.
There is no such concern when packaging with thin plastic sheets. That is, inventory management becomes easy.

FIG. 21 shows a third embodiment.
The present embodiment is characterized in that the wrapping and rupturing means 36 having a plurality of protrusions is arranged in the inlet 10F.
In the present embodiment, since the wrapping WRP is ruptured before entering the internal space, the cleaning medium can be released and diffused earlier than in the second embodiment.
As the wrapping rupture means, a protrusion may be provided so as to protrude in the radial direction from the inner peripheral surface of the inlet 10F, or a protrusion may be provided so as to face in the opposite direction.

FIG. 22 shows a fourth embodiment.
In the above embodiment, the wrapping material of the wrapping WRP is forcibly ruptured by the wrapping rupture means. However, the present embodiment is characterized in that the wrapping material itself is configured to be broken.
As shown in FIG. 22, the thin sheet 38 as the wrapping material is provided with vertical and horizontal cuts 38a and 38b so as to be easily ruptured in the internal space.
Specifically, insert perforations. A cleaning medium is accommodated and wrapped in a thin sheet 38 to constitute a wrapping WRP.
The wrapping WRP introduced from the inlet 10F into the internal space is easily ruptured along the perforation, and the cleaning medium released from the wrapping WRP continues to fly on the outermost periphery of the internal space. It becomes possible to remove dirt.

  Table 1 shows the experimental results relating to the bursting characteristics of the wrapping material and the flight characteristics of the cleaning medium. Table 1 shows the results using all wrapping bursting means.

  As can be seen from Table 1, various materials can be used as the wrapping material for the wrapping, except for materials that are difficult to break, such as coffee filters.

Based on FIG. 23 thru | or FIG. 27, the structure and washing | cleaning mechanism of the dry-type cleaning apparatus which concern on this embodiment are demonstrated in detail.
FIG. 23 is a view for explaining an embodiment of the dry cleaning apparatus according to the present embodiment. In FIG. 23, reference numeral 10 denotes a dry cleaning housing.
Hereinafter, the dry cleaning casing is simply referred to as “casing”.
As is clear from the upper and lower views of FIG. 23, the casing 10 has a conical hollow body that is opposite to each other and is combined on the bottom surface side.
The part indicated by reference numeral 10A shown in the lower part of FIG. 23 is referred to as “upper casing”, and the part indicated by reference numeral 10B is referred to as “lower casing”. The upper housing 10A and the lower housing 10B are integrally formed.

Between the upper housing 10A and the lower housing 10B, a separation plate 10C serving as a plate-like porous means is provided at a portion that becomes a conical bottom surface of these housings.
A cylindrical inner cylinder member 10D is provided inside the upper casing 10A as a part of the casing 10 so that the conical axis of the upper casing 10A is a common axis. The lower part of is in contact with the separating plate 10C.
The top side (the lower part in the figure) of the lower housing 10B is opened in a cylindrical shape to form an air inlet 10J, and is connected to the suction device 20A via a flexible air intake duct 20B.
The suction device 20A and the intake duct 20B constitute an intake means. As the suction device 20A, a vacuum motor, a vacuum pump, a type that generates a low pressure by an air flow or a water flow, or the like can be used as appropriate.

A portion near the bottom surface of the upper housing 10A has a cylindrical shape, and an opening 10E is formed in a part of the cylindrical portion. The opening 10E has a rectangular shape in which the cylindrical portion is cut by a plane parallel to the cylindrical axis.
The cylindrical portion is penetrated by a hollow cylinder 10F, and the hollow cylinder 10F is integrated with the upper housing 10A. Hereinafter, the hollow cylinder 10F is referred to as “inlet 10F”.
The state of the inlet 10F is substantially parallel to the separation plate 10C, and the longitudinal direction thereof is inclined with respect to the radial direction of the cylindrical portion of the upper housing 10A.
The longitudinal direction of the inlet 10F is substantially parallel to the tangent to the peripheral surface of the inner cylinder member 10D, and the outlet side opened in the upper housing 10A is positioned to face the opening 10E.
The interior of the inlet 10F forms a ventilation path.

The separation plate 10C is a disk-like member having a hole such as punching metal.
As shown in the lower part of FIG. 23, it is provided at the boundary between the lower housing 10B and the upper housing 10A, and separates the inside of the upper housing 10A and the lower housing 10B.
In the upper part of FIG. 23, reference numeral PC denotes a thin piece of cleaning piece, and an aggregate of the cleaning pieces PC forms a cleaning medium. Hereinafter, PC is also displayed as a cleaning medium.

The cleaning operation of the cleaning object (cleaning object) by the dry cleaning apparatus configured as described above will be described with reference to FIG.
The upper and lower views of FIG. 24 show the dry cleaning apparatus described with reference to FIG.
FIG. 24B shows a state in which intake by the intake means is performed with the opening 10E released, and FIG. 24A shows a state in which the opening 10E is blocked by the surface of the cleaning object CO. .

Prior to the cleaning operation, the cleaning medium PC is taken into the upper casing 10A in the dry cleaning casing 10 and held. The supply method (incorporation method) of the cleaning medium by lapping is as described above.
As shown in the lower diagram of FIG. 24B, the cleaning medium taken into the upper housing 10A is sucked by the separation plate 10C, which is a porous means, and held in the upper housing 10A.
The air inside the upper housing 10A is sucked by the intake means and the inside of the upper housing 10A is in a negative pressure state, so that air outside the housing is introduced into the upper housing through the inlet 10F.
Since the flow in the inlet 10F at this time is small in both the flow velocity and the flow rate, the swirling airflow RF generated in the housing does not reach the strength for flying the cleaning medium.

When the cleaning medium is held in the upper casing 10A, as shown in FIG. 24A, the surface of the cleaning object CO (“dirt” adheres to the surface to be cleaned) in the opening 10E of the upper casing 10A. Close).
When the opening 10E is blocked by the surface of the cleaning object CO, the intake air from the opening 10E stops, so the negative pressure in the upper housing 10A increases at a stretch.
Both the amount of air sucked through the inlet 10F and the flow velocity increase, the air is rectified in the inlet 10F, and blows out from the inlet outlet into the upper housing 10A as a strong air flow.
The blown-out air flow causes the cleaning piece PC held on the separation plate 10C to fly toward the “surface of the cleaning object CO closing the opening 10E”.
The air flow becomes a swirl airflow RF and flows in an annular shape along the inner wall of the upper housing 10A, and a part thereof is sucked by the suction means through the hole of the separation plate 10C.

Thus, when the swirling airflow RF that has flown annularly in the upper housing 10A returns to the outlet portion of the inlet 10F, the airflow that is introduced through the inlet 10F and blown out from the inlet outlet portion is accelerated while merging with the swirling airflow RF. To do.
In this way, a stable swirling airflow RF is formed in the upper housing 10A.
The cleaning piece PC constituting the cleaning medium is swung in the upper housing 10A by the swirling airflow, and repeatedly collides with the surface (dirt) of the cleaning object CO.
Due to the impact of this collision, the dirt is separated from the surface of the cleaning object CO in the form of fine particles or powder.
The separated dirt is discharged to the outside of the dry cleaning casing 10 by the suction means through the hole of the separation plate 10C.

The swirling airflow RF formed in the upper housing 10A has its swirling axis orthogonal to the surface of the separation plate 10C (surface on the upper housing 10A side), and the swirling airflow RF is formed on the surface of the separation plate 10C. The airflow is parallel.
For this reason, the swirling air current is blown from the lateral direction onto the cleaning piece PC sucked on the surface of the separation plate and enters between the cleaning piece PC and the separation plate 10C.
As a result, there is an effect that the cleaning piece PC sucked on the separation plate 10C is peeled off from the separation plate 10C and re-flyed.
Further, since the opening 10E is blocked and the negative pressure in the upper housing 10A increases and becomes close to the negative pressure in the lower housing 10B, the force for sucking the cleaning piece PC against the surface of the separation plate 10C is also reduced. As a result, the cleaning piece PC can fly more easily.

Since the swirling airflow RF is accelerated in a certain direction, a high-speed airflow is easily generated, and the cleaning piece PC can easily move at a high speed.
Further, since the swirling airflow circulates many times inside before being sucked out from the porous means, it has been confirmed by the airflow simulation that the flow rate of the swirling airflow reaches 5 to 6 times the flow rate flowing from the air passage.
Since the flow rate is large, it is possible to fly a larger amount of the cleaning medium. The cleaning piece PC that pivots at high speed is difficult to be attracted to the separation plate 10C, and the dirt adhering to the cleaning piece is easily separated from the cleaning piece by centrifugal force.

FIG. 25 shows an example of cleaning by the dry cleaning apparatus shown in FIG.
The cleaning object is a dip pallet used in the flow solder bath process, and is denoted by reference numeral 100.
In the dip pallet 100, mask openings 101, 102, 103 are opened, and the flux FL is deposited and solidified around the holes of the mask openings. This accumulated and solidified flux FL is dirt to be removed.

The joint of the lower casing 10B of the dry cleaning casing with the intake duct 20B is grasped with the hand HD, and the opening 10E of the upper casing 10A is pressed against the portion to be cleaned in the intake state.
Before the opening 10E is pressed against the portion to be cleaned, the inside of the upper housing 10A is sucked, and the cleaning piece PC of the cleaning medium is sucked by the separation plate 10C.
For this reason, the opening 10E faces downward as shown in FIG. 25, but the cleaning piece PC does not leak from the upper housing 10A to the outside.
Of course, after the opening 10E is pressed against the portion to be cleaned, the inside of the housing is in an airtight state, and the cleaning medium does not leak out.

When the opening 10E is pressed against the site to be cleaned, the inflow airflow guided by the inlet 10F increases rapidly, and a strong whirling airflow RF is generated in the upper housing 10A.
The swirling airflow RF causes the cleaning piece PC sucked on the separation plate 10C to fly and collide with the flux FL that has adhered and solidified on the site to be cleaned of the dip pallet 100 to remove the flux FL.
As described above, the cleaning operator can hold the housing 10 in the hand HD and move it with respect to the dip pallet 100 to sequentially move the portion to be cleaned, thereby removing all the adhered and solidified flux FL.
In the state of FIG. 25, the peripheral portion of the mask opening 101 of the dip pallet 100 is cleaned, and the peripheral portion of the mask opening 102 is in the process of cleaning.

Even when the opening is moved away from the portion to be cleaned when the opening is moved with respect to the portion to be cleaned, the cleaning piece PC does not leak out of the casing due to the cleaning medium adsorption / flying effect.
For this reason, the number of the cleaning pieces PC constituting the cleaning medium is maintained, and the cleaning performance is not deteriorated due to the decrease in the amount of the cleaning medium.

26 and 27 show a modification of the dry cleaning casing. In this example, the upper housing 10A is formed in a cylindrical shape.
When the cleaning medium becomes dirty due to repeated use, as shown in FIG. 26, the openable / closable cleaning medium discharge port 58 provided in a part of the separation plate 10C is opened by a handle mechanism (not shown) and remains in the casing. Collect the used cleaning medium to the suction device.
The cleaning medium discharge port 58 is closed during a normal cleaning operation.
The cleaning medium that is held without passing through the separation plate 10C is a usable cleaning medium. However, when the dirt adheres and the function of biting into the dirt by the edge is deteriorated, the cleaning medium is replaced with a new cleaning medium. The cleaning function will be higher.
In such a case, the cleaning medium discharge port 58 is opened to collect the dirty cleaning medium, and the wrapping WRP is inserted to replace the cleaning medium.

Even when it is desired to collect the lapping residue without separating the casing 10, it can be easily removed by opening the cleaning medium discharge port 58.
As shown in FIG. 27, it is more effective to arrange a flexible member 60 such as rubber packing around the opening 10E in order to improve the adhesion to the cleaning object (the same applies to the above embodiment).
In FIG. 27, reference numeral 62 indicates dirt on the cleaning object 20, and 64 indicates a rubber sheet on which the cleaning object 20 is placed.
Even if the object to be cleaned has a shape with irregularities and openings, it is possible to increase the negative pressure in the housing by closing the openings with a flexible rubber sheet or the like, and the cleaning medium can be cleaned without leaking.
Also in this example, the cleaning medium can be supplied in a lapped form as in the above embodiment.

DESCRIPTION OF SYMBOLS 10 Dry cleaning housing | casing 10C Separation plate as a porous means 10E Opening part 10F Inlet as an air passage 10J Inlet 20A, 20B Intake means 30 Wrapping material 32, 36 Lapping rupture means as a disintegration means CO Cleaning object PC Cleaning medium RF Swirl air flow WRP wrapping

JP 2012-050973 A JP2012-081422A Japanese Patent No. 4796553

Claims (7)

A cleaning medium used in a dry cleaning apparatus that causes a plurality of cleaning media to fly by a swirling airflow in an internal space and applies the cleaning medium to an object to be cleaned to clean the object to be cleaned,
It can be introduced into the internal space in a group or in a lump state, and is formed so as to be separated by the action of external force after introduction ,
The plurality of cleaning media are wrapped with a wrapping material;
The wrapping material has a configuration or a material that ruptures or collapses itself by contact with an airflow in the internal space, an airflow that enters the internal space from the outside, or a member that guides the airflow. Cleaning medium. The cleaning medium according to claim 1,
A cleaning medium , wherein the wrapping material is formed of a sheet-like member having a thickness of 0.1 mm or less . The cleaning medium according to claim 1 or 2,
Washing medium in which the plurality of cleaning medium and said flaky or granular der Rukoto. A dry cleaning housing used in a dry cleaning apparatus that causes a plurality of cleaning media to fly by an air current and applies the cleaning medium to an object to be cleaned to clean the object to be cleaned,
An internal space for flying the cleaning medium;
An opening that abuts the object to be cleaned and collides the object to be cleaned with the cleaning medium flying in the internal space;
A ventilation path for passing air from outside to the internal space;
An air inlet that generates a swirling airflow in the internal space by sucking air introduced into the internal space through the air passage;
A porous means for allowing the removal object removed from the object to be cleaned to pass to the inlet side,
A dry cleaning casing comprising disintegrating means for dispersing the cleaning medium introduced into the internal space in a group or lump . The dry cleaning housing according to claim 4 ,
The dry cleaning housing characterized in that the disintegrating means is provided on the inner peripheral side of the swirling airflow in the internal space . The dry cleaning housing according to claim 4 ,
Dry cleaning housing said disintegrating means is characterized that you have provided in the vent passage. A dry cleaning apparatus comprising: the dry cleaning casing according to any one of claims 4 to 6; and air intake means connected to the air inlet of the dry cleaning casing .

Images