JP2006297254A - Dust remover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust remover for easily removing the ultrafine foreign matter particles since the exist of foreign matters is a serious trouble in the manufacture process due to the micro fabrication or compaction of an electronic device and an opto device, etc. <P>SOLUTION: As for the dust remover 1, inside an ultrathin plastic pipe, adhesive rubber 3 is filled for the half of the entire length of the pipe and molded. On the filling side of the adhesive rubber 3, only the distal end part of the pipe is cut off leaving the adhesive rubber 3, and the adhesive rubber 3 is exposed. The other side has such a shape that a prepared operation rod 8 can be inserted and fitted. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In the present invention, with the miniaturization and densification of electronic devices, opto-devices, etc., the presence of foreign matters has become a major obstacle in the manufacturing process. Dust for facilitating the removal of these extremely fine foreign particles It relates to a removal tool.

In recent years, digital home appliances and optical communication have been widely used, and electronic devices and opto devices of various products have been further miniaturized and densified. Accordingly, the presence of foreign matters has become a major obstacle in the manufacturing process. In addition, the size of the target foreign particle itself is “ultrafine particles” that cannot be observed with the naked eye, and there is an increasing demand for dust removal tools suitable for removing ultrafine particles at the level of microscopic observation.
Conventionally, roller-type and pencil-type dust removers using adhesive rubber for the purpose of removing these foreign substances have been widely used.
As this pencil type dust remover, an adhesive rubber is inserted into a portion corresponding to a pencil core empty portion provided in a mechanical pencil-shaped main body, and a gap is formed above the adhesive rubber in the upper portion of the main body. There is a pencil-type dust removing tool (see, for example, Patent Document 1) in which a gap portion is provided so as to be formed, and a weight is inserted into the gap portion so as to be movable up and down.
As described above, there are (1) clean performance, (2) the size of the dust removal tool itself, and (3) the operation surface (usage method) in removing microscopic particles at the microscope observation level. It is not suitable for removing fine particles.
JP 2002-177910 A (see paragraphs of claims, paragraphs {0010}, {0015} to {0020} in the column of examples, see FIGS. 1 to 3)

However, in the prior art, the biggest problem is how to solve the three items which are the drawbacks shown in the prior art.
First, (1) clean performance is aimed at removing ultrafine particles at the level of microscopic observation, and as a fundamental condition of the product specifications, the dust removal tool itself must be clean, and adhesive rubber Naturally, the cleanliness of the main body is high and there is no presence or elution of impurities. Adhesive rubber is fixed, and the dust removal tool itself does not contain dust, dust, or dust until it is actually used. Maintenance is required.
Next, (2) regarding the size of the dust removing tool itself, various magnifiers and loupes (microscopes / CCD cameras) are used to search for foreign substances present on the surface of a substrate or lead frame for incorporating a dense electronic device such as an LSI. If the dust removal part of the dust removal tool, that is, the tip of the adhesive rubber is thicker, the higher the magnification, the narrower the field of view and the adhesive rubber when searching for dust / foreign matter. The front end of the screen obstructs the observation field of view and hinders observation.
Therefore, the tip diameter of the adhesive rubber must be made as thin as possible. However, on the other hand, when producing a soft adhesive rubber without a very thin waist, the manufacturing method must be solved at the same time.
Furthermore, (3) the operation surface must also be considered. That is, since the adhesiveness of the adhesive rubber is used for the work, the dust removing portion is exposed. Therefore, dust adheres immediately to the surface of the adhesive rubber in an environment with a low degree of cleanliness. In addition, the storage and storage method must be adopted so that the adhesive rubber surface does not come into contact with other containers. Furthermore, in use, a method of directly gripping the adhesive rubber portion with a hand and mounting the rubber to another operation jig must be avoided.
An object of the present invention is to provide a dust removing tool for removing extremely fine foreign particles that solves these problems at once.

A first invention of the present invention for solving the above-mentioned problems is a dust removing tool as described in claim 1, and is as follows.
Filled with less than half of the total length of the pipe with an adhesive rubber inside an ultra-fine plastic pipe, molded with the adhesive rubber filling side, leaving only the tip of the pipe, leaving the adhesive rubber, stripping the adhesive rubber, and preparing the other side in advance It is the structure which has the shape which can insert and fit the operation rod which carried out.

A second invention of the present invention for solving the above-mentioned problems is a dust removing tool as described in claim 2, and is as follows.
Adhesive rubber is filled into the dropper-shaped plastic pipe that becomes thinner as the inner diameter goes to the tip, and is molded by filling less than half of the total length of the pipe. The rubber has a shape in which the rubber is exposed and the other side prepared in advance can be inserted and fitted.

A third invention of the present invention for solving the above-mentioned problems is a dust removing tool as described in claim 3, and is as follows.
In addition to the invention described in claim 1 or 2, the adhesive rubber is molded into a plastic pipe by filling approximately 90% of the total length of the pipe, and the adhesive rubber filling side is formed on the pipe outer peripheral portion with the adhesive rubber filling side. The configuration is such that an arbitrary adhesive rubber diameter can be obtained by preliminarily providing circumferential cut grooves between the tip portion and the root to the limit of the inner diameter of the pipe.

A fourth invention of the present invention for solving the above-mentioned problems is a dust removing tool as described in claim 4, and is as follows.
In addition to the invention according to any one of claims 1 to 3, the operation rod is inserted and fitted into a fitting portion on which the operation rod on the side opposite to the exposed adhesive rubber of the dust removing tool can be fitted. Even if a pressing force is applied, a flange portion is formed on the outer diameter of the dust removing tool so that the dust removing tool set on the separately prepared dust removing tool storage base does not move.

Since the dust removing tool according to the present invention has the configuration as described above, the following effects can be obtained.
(1) It is suitable for removing very fine dust while performing observation with a microscope or the like.
(2) Since the adhesive rubber of the main action part by the dust removing tool is not a molded product using a mold, it is not necessary to use a release agent. For this reason, the adhesive rubber is an extremely clean dust removing tool composed of only a pure rubber component.
(3) Since the adhesive rubber is molded in a plastic ultra-thin pipe prepared in advance, it is possible to produce ultra-fine dust removing tools having various diameters according to the pipe diameter.
(4) Leave some adhesive rubber filled in a dropper-shaped plastic pipe with the inner diameter going toward the tip, and cut the circumference in several places between the tip and the root in advance until the end of the pipe inner diameter. By providing the groove, an arbitrary adhesive rubber diameter can be stripped using this kerf.
(5) When using, when attaching the dust removing tool to the operating rod, it can be attached without grasping by hand, so that the adhesive rubber is not contaminated.

  An adhesive rubber material is filled and molded in an ultra-fine plastic pipe, and only one pipe material is cut off at one end of the pipe at a position 3 to 5 mm from the tip to expose the adhesive rubber. In addition, the pressure-sensitive adhesive rubber obtained by the above-described method using a dust removing tool in which the inner diameter of one end is fitted to the outer diameter of a separately prepared operating rod and the outer diameter is larger than the outer diameter of the pipe. The dust removal tool using force is stored in a dedicated storage case, and when used, the operation rod is fitted and connected to the tip of the dust removal tool so that extraneous foreign matter can be easily removed by magnifying glass observation. It is a dust removal tool.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
First, some specific examples will be described in the order of development.
When attempting to remove extraneous foreign matter at the microscope observation level, the higher the magnification of the observation field, the narrower it becomes, and at the same time, the size of the dust removal tool is small so that the dust removal tool does not block the observation field. It is necessary to do.
Therefore, it has become necessary to finish the diameter of the adhesive rubber to 1 mm or less.

The first attempt was to create a pencil-like shape, that is, the rubber that touches the graphite core is made of adhesive rubber, the wooden part is made of plastic material, and the tip is sharpened with a pencil sharpener. It was considered that it could be used during microscopic observation and was prototyped.
We prepared a polypropylene pipe (hereinafter referred to as PP) with an inner diameter of 4 mm and an outer diameter of 6 mm, cut to a length of 100 mm, and mixed with a two-component mixed material of urethane rubber as the adhesive rubber at a predetermined ratio. The hardness was adjusted to 30 °, the mixed rubber raw material was transferred to a container, the container was degassed in a vacuum defoamer, and the air in the rubber raw material was expelled.
Next, the aforementioned PP pipe is gently dropped into the rubber raw material solution, and the adhesive rubber raw material is filled up to about a half level position. Seal the PP pipe opening on the side not containing the adhesive rubber material with your finger, gently pull it up from the container, and cut off the chopsticks so that the adhesive rubber material does not flow out to the bottom of the PP pipe. Did.
Thereafter, the adhesive rubber is cured for about 1 hour in a drier set at 85 ° C. to obtain a pipe stick filled with the adhesive rubber.

Next, an electric pencil sharpener filled with rubber was inserted at the top, and an attempt was made to finish the tip of the adhesive rubber into a conical shape in the manner of sharpening the pencil.
However, even if the PP pipe part was scraped unnecessarily, the adhesive rubber part had a hardness of 30 °, and the adhesiveness was detrimental, and the rubber was torn off and could not be finished in a conical shape.

  Therefore, it was thought that it would work well if the adhesive rubber was cured, and dry ice was obtained and left in a heat insulation case for about 2 hours. Only a bare rubber rod was previously placed in the heat insulation case as an indicator, and the amount of rubber hardness was observed. The temperature in the heat insulation case was lowered to about −60 ° C. by dry ice, and the soft sticky rubber stick became hard. However, it could not be hard enough to bend with a little force like a pencil.

This time, I tried to process the adhesive rubber in a conical shape by manual pencil sharpening, but at the beginning of cutting, the adhesive rubber was hard, so it was cut into a circle. It was not possible to finish it into a sharp conical shape.
At the same time, we tried to lathe the filled rubber stick in the PP pipe, but we tried to cool the rubber part, but the result was not like a pencil sharpened with a pencil sharpener. The machining with adhesive rubber had to be abandoned.

  On the other hand, the tip of the rubber filling portion of the rubber stick filled in the PP pipe is cut obliquely (completely cut off), and then a further 15 mm from the tip is gradually cut while rotating the PP pipe with a cutter knife. The cutting operation is stopped just before reaching the adhesive rubber, and both ends of the PP pipe are gripped with both hands around this incision part, and when pulling to the left and right simultaneously with the bending operation, only the PP pipe peels off at the cutting position. The adhesive rubber part was exposed. When an adhesion test of dust was actually performed with this exposed adhesive rubber, it was judged that it was able to be used as a dust removal tool at the same time as the adhesiveness was retained, and at the same time, there was a possibility of commercialization without producing a mold I was able to judge that there was. This is due to the influence of the mold release agent during the molding process by the mold, and not only the surface cleaning work of the adhesive rubber after molding can be omitted, but also the adhesive rubber material only, which does not leave the mold release agent component, is truly pure It became a hint to be able to produce adhesive rubber.

Therefore, the second prototype was made with a thinner PP pipe.
Using a PP pipe with an inner diameter of 2 mm and an outer diameter of 4 mm, filling and curing urethane rubber with a hardness of 30 ° as before, producing a rubber-filled stick rod, and then cutting off the tip at an angle of about 15 °, and about 10 mm from the tip After cutting the cut groove with a cutter knife and then bending and stripping the rubber part, all the rubber sticks were stuck and pulled out toward the tip part, and the PP pipe was completely empty.

Therefore, the inner wall surface is scraped with a drill with a diameter of 2.2 mm for the inner diameter of the PP pipe with an inner diameter of 2 mm, and the release agent and oil adhering to the inner surface of the PP pipe are scraped off. After the operation, the adhesive rubber was filled, cured and molded, and only the PP pipe was cut off at a predetermined position with a cutter knife. This time, all the prototypes were pulled out of the PP pipe at the tip, and the adhesive rubber was exposed. succeeded in.
Using an adhesive rubber with a diameter of 2.2 mm and a CCD camera and observing the image at a magnification of about 30 times, and performing a dust removal operation, the adhesive rubber with a diameter of 2.2 mm obstructs the observation field of view. I found that it was a hindrance. That is, it was found that unless an adhesive rubber rod having a diameter of 1 mm or less is manufactured, it is not suitable for removing dust from ultrafine particles at the level of microscopic observation. At the same time, since the portion of the adhesive rubber that is actually used is about 5 mm from the tip of the PP pipe, it has also been found that it is sufficient to perform filling and curing formation of about 20 mm in total length.
Furthermore, it was also found that the length that is easy to use as a stick-type dust removing tool has a total length of about 90 to 130 mm and is suitable for operation.

However, for example, when the total length is 100 mm and the tip portion is 5 mm in the length of the exposed portion of the adhesive rubber, two major problems emerged.
First, when discarding the used stick-type dust remover, the entire dust remover must be discarded, which is not very economical, but also increases the amount of dust.
The second point is an important point in terms of the purpose of use, how to store the completed dust removing tool, that is, how to maintain the cleanness.

  As one proposal, if the cap is attached to the adhesive rubber part of the dust remover, the cleanness can be maintained. However, if a cap is attached to the tip of each dust remover, the cap is discarded at the same time as the dust remover after use, which also leads to an increase in dust.

  Therefore, as a means to solve these problems, the adhesive rubber part that actually removes dust and the operation rod corresponding to the handle for operation are separated, and the separated components can be connected instantaneously when used. Considered desirable. By doing so, there is no disposal because one operating rod can be used semipermanently many times. On the other hand, if the adhesive rubber shortens the length of the PP pipe to the minimum necessary length and stores it in a case, for example, in units of 50 or 100, instead of storing one by one, It came to the idea that a cap for each book would be unnecessary.

Therefore, a prototype was made again based on the above points.
First, a PP pipe with an inner diameter of 2 mm and an outer diameter of 4 mm is cut into a length of 80 mm. The part is warmed with a gas burner, and when the PP pipe is softened, it is extended to both sides. Do this in the same way). Then, by cutting with a cutter knife at the center position of the PP pipe center that is thinned to about 2 mm in outer diameter, it is possible to obtain a PP pipe close to a conical shape with two shortened tip outer diameters of 2 mm to 4 mm. It was.

Next, the work of expanding the inner diameter is performed using a soldering iron on the end portion of the PP pipe having a root outer diameter of 4 mm, that is, the inner wall of the PP pipe having an inner diameter of 2.2 mm. Adjust the surface temperature around 90 ° C through a slider with a soldering iron with an iron tip outer diameter (not the tip of the iron tip, but the base outer diameter of the iron tip) of about 4 to 6 mm. When the pipe diameter increases and the PP pipe outer diameter reaches 5 mm or more, the soldering iron power is turned off and the PP pipe is cooled with a wet towel to form a flange portion.
The conical PP pipe obtained by the above operation is filled with rubber and cured. At this time, the filling amount of rubber was set to about 20 mm from the top of the cone.
After cutting off the tip of the thin rubber-filled PP conical stick pipe with a cutter knife at an angle of about 15 °, a portion of about 6 mm from the tip should not be damaged. Carefully pay attention to the circumference of the PP pipe with a cutter knife. The cutting was stopped immediately before reaching the adhesive rubber part, and both ends of the PP pipe were grasped with both hands and bent, and at the same time, only the PP pipe part was pulled out to expose the adhesive rubber. In this trial production, the diameter of the rubber part could be about 1 mm.

Next, an operation rod that matches the inner diameter of the opposite end from which the rubber is exposed is manufactured.
One of the chopsticks is cut into a circle with a cutter knife and finished to a size that can be fitted to the inner diameter of the PP pipe. After finishing, it was confirmed that the finished operation rod could be fitted and integrated with the inner wall of the brim part formed in the above process.

Next, the storage case of the completed stick type dust remover was examined.
First, a fixed plate for a stick-type dust removing tool was prototyped as follows.
Since the total length of the resulting dust remover is about 50 mm (about 40 mm excluding the flange), obtain a plastic case with a lid with a depth of 50 mm, and add a step of 1 mm to the edge of the four sides of the case body. A PP plate with a thickness of 5mm is prepared with the attached position matched to the inner dimensions of the case body. Holes with a diameter of 4.5mm are drilled in this plate at 10mm vertical and horizontal pitches. Taper processing was performed with a drill drill (depth: about 3.5 mm) close to the outer diameter and shape, and it was devised so that the dust remover would not rattle when the dust remover was inserted.

  Place the dust removal tool insertion plate on the case body, set so that the rubber part of the dust removal tool is almost inscribed in the plate hole, and insert the tip of the processed operation rod into the inner diameter of the flange part of the dust removal tool. Then, when a take-out test was performed, it was possible to take out one by one with certainty.

  Finally, when the attached lid was placed on the case, the lid did not fit securely, and as a result it was a mistake in selecting the case that was obtained, but the case body, stick-type dust remover set plate, and case lid If all three points are securely fitted and a sealed state can be established, it can be confirmed that the product is useful as a dust removal tool for removing extraneous foreign matter at the microscope observation level.

When the basic structure / structure and the storage case were examined again, the pipette tip used when separating liquid with the laboratory equipment for research as an existing product and the pipette tip storage case were used as the material for the dust removal tool of the present invention. It turns out that it exists in a form close to the ideal.
Therefore, when using a pipette tip for 0-200 μl and trying a series of manufacturing operations from the above-mentioned filling / curing molding of adhesive rubber and cutting the tip / peeling the rubber part, almost the same result was obtained. By applying the chip, it was confirmed that it could be put into practical use and manufactured at a low cost.
However, there are pipette tips of various shapes, and because it is an injection-molded product, it is necessary to use a washed product from which the mold release agent has been washed away. Yes, when the dust remover is stored, the rubber tips may stick to each other. For this reason, it has been found that it is necessary to devise such as newly adding a packing sheet so that the space between the outer lid and the pipette tip is not loosened.

The structure of the dust remover will be described.
The conventional pencil-type dust remover that is commercially available as a relatively large particle dust / dust remover is manufactured by separately manufacturing an operation rod and an adhesive rubber. By inserting the adhesive rubber into the threaded pedestal in advance and cutting the threaded part into male and female separately on the operation bar of the same screw size, and screwing both together It is a component configuration to be integrated and used.

However, with this configuration, as a problem prior to achieving the purpose of removing ultrafine particles, the dust-removing adhesive rubber itself must be grasped by hand and attached to the operation rod. , Already accompanied by dirt attached to the hands. However, since the removal purpose is removal of ultrafine particles at the level of microscopic observation, the thickness of the adhesive rubber is usually desired to be 1 mm or less in diameter so as not to obstruct the observation visual field.
Therefore, the structure must be such that a soft adhesive rubber having a diameter of 1 mm or less is held and that the actual operation is not hindered, and that the surface of the adhesive rubber is only a clean rubber material. Normally, rubber molding using a mold is a common manufacturing method for rubber molding, but it is always necessary to apply a silicone or fluorine mold release agent to the inner wall of the mold. Do. In the case of plastic molding, it is relatively easy to remove the mold release agent after molding. However, in the case of rubber molding, it is difficult to completely remove the mold release agent, and it is particularly difficult to remove the mold release agent. It is almost impossible to completely remove the mold release agent. Therefore, the method of forming using a mold as a means for forming the rubber part must be avoided. As a solution, the adhesive rubber 3 is once formed in a plastic ultra-thin pipe without using any release agent. Then, only one PP pipe portion is cut off at a portion of about 3 to 5 mm from the tip end of one end portion, and the rubber portion is exposed to form a main action portion for dust removal of the adhesive rubber 3. One PP pipe end is provided with a male / female fitting part that is sized to fit with the separately prepared operation bar 8 so that the operation bar 8 can be easily attached without touching the adhesive rubber 3. The connection is possible.

Furthermore, in the fourth invention of the present invention for solving the above-mentioned problems, the other end portion of the adhesive rubber 3 with the tip portion exposed is configured to be fitted with the operation rod 8, for example, the adhesive rubber 3 at the tip end. Even if it is not touched, it is solved that it is impossible to attach to the operation rod 8 without grasping any part of the PP pipe.
This is preferably avoided from the purpose of use even by grasping a part of the dust removing tool 1 by hand. At the same time, it is important that the adhesive rubber part exposed is kept clean until just before use, and it should not come into contact with the container or the storage case 6.
Therefore, one of the plastic ultra-thin pipes used in the dust removing tool 1 according to claim 4 on the opposite side to the adhesive rubber 3 has an inner diameter on which the operation rod 8 can be fitted, and the extra-fine pipes. By forming the brim portion 10 that is thicker than the outer diameter of the outer diameter, a configuration is possible in which the PP rubber pipe is not touched and the adhesive rubber portion is not contaminated by other objects.
However, it goes without saying that a dedicated storage case 6 shown in FIGS. 2 and 3 is required as a case for storing and taking out the dust-removing tool 1 having a brim shape.

Here, the best embodiment of the present invention will be described with reference to FIGS. 1 to 3. As shown in FIG. 1, a pipette tip 2 to be used for separating liquid with a research laboratory instrument is prepared. Needless to say, the pipette tip 2 {see FIG. 1 (A)} can be replaced if it is made of a synthetic resin and has a conical dropper shape with an inner diameter cross-sectional shape. If the pipette tip 2 is used, it can be manufactured at low cost.
Next, a two-component mixed material of urethane rubber is mixed as the adhesive rubber 3 at a predetermined ratio, and the rubber hardness is adjusted to 30 °. The mixed rubber material is transferred to a container, and the container is vacuum degassed. Deaerate in the vessel, expel the air in the rubber material, gently drop the prepared pipette tip 2 into the rubber material solution, and fill the adhesive rubber material to about half level position {see Fig. 1 (B) }, While sealing the mouth of the pipette tip 2 on the side not containing the adhesive rubber raw material, gently lift the pipette tip 2 from the container containing the rubber raw material solution, and the adhesive rubber raw material flows out from the opening at the tapered tip of the pipette tip 2 The plug is closed so as not to be dried, and then dried to cure the adhesive rubber 3. By cutting the tip of the pipette tip 2 filled with the adhesive rubber 3 in a sharp state, a sharp cut portion 11 is formed at the tip {see FIG. 1 (C)}, and the pipette tip 2 is filled in approximately half. The adhesive rubber 3 that remains is cut in the vicinity of the illustrated cut portion 5 that is the position of the tapered tip of the pipette tip 2 (the side that is filled with the adhesive rubber 3) {see FIG. 1 (D)}. The adhesive rubber tip 4 that has become is exposed.
The dust removing tool 1 having the tapered adhesive rubber 3 obtained in this way is stored in a pipette chip storage case 6 (see FIG. 2).
When the pipette tip 2 is stored, the pipette tip 2 is inserted into the hole 9 formed in the inner lid 7 of the storage case 6 as shown in FIGS. Since the flange portion 10 larger than the hole 9 formed in the inner lid 7 of the storage case 6 is provided on the non-side, the operating rod 8 is fitted to the fitting portion of the pipette tip 2 and pressed. Even if it adds, it will be latched by the inner lid 7 by the brim part 10, and it will not be pushed down, and the bottom 12 etc. of the storage case 6 will not be touched. Reference numeral 13 denotes an outer lid.
It is also conceivable to form polyurethane rubber, butyl rubber, or silicon rubber that has conductivity by adding a conductive material to an adhesive rubber made by polymerization or copolymerization of an unsaturated compound.

Next, based on FIG. 4 and FIG. 5, an advantageous embodiment in which a necessary diameter of the adhesive rubber 3 can be selected from among a plurality of diameters will be described.
As shown in FIGS. 4 and 5, a plurality of circumferentially cut grooves, for example, four A, B, C, and D, are formed on the outer peripheral surface of the pipette tip 2 in advance so that the adhesive rubber 3 is easily exposed. .
These circumferential cut grooves A, B, C, D leave the adhesive rubber 3 filled and formed in the pipette tip 2, and the circumferential cut grooves A, B, C, D up to the limit of the pipe inner diameter of the pipette tip 2 Is formed between the tip and the root of the pipette tip 2 (see FIG. 4), for example, the cutting operation is performed at the circumferential groove A, and the bending operation is performed around the circumferential groove B. At the same time, the adhesive rubber 3 is peeled off, so that it is cut off at the circumferential cut groove C portion, and the adhesive rubber 3 is obtained by the bending operation around the cut groove of the circumferential cut groove D portion. An adhesive rubber 3 thicker than the rubber diameter of the adhesive rubber 3 can be obtained.
That is, by cutting the pipette tip 2 with an arbitrary length dimension, an adhesive rubber rod having a different rubber diameter can be obtained, so that the thickness of the adhesive rubber suitable for the purpose of use can be obtained.

By adopting the above configuration, with the miniaturization and densification of electronic devices and opto-devices, there are major obstacles due to the presence of extraneous foreign particles (commonly called trash), and these extraneous foreign particles. Solved the problem that "maintenance of cleanliness" of the removal tool itself that removes water is required.
It is possible to mold the adhesive rubber 3 without using any mold / release agent, and it can be molded without any adhesives, pigments, other additives, etc., and the dust removing tool 1 of the present invention can be molded. The adhesive rubber 3 at the tip can be stored without touching the inside of the storage case 6 and can be taken out by inserting a dedicated operation rod 8 into the engaging portion of the dust removing tool 1 opposite to the adhesive rubber 3 to directly It can be exchanged without touching.
The dust removing tool 1 of the present invention can be subjected to pure water cleaning and clean pack processing, and is basically a disposable type (disposable), but can be reused by cleaning again.

  In addition, most of the commercially available adhesive rubbers are those that have been added with a pigment so as to exhibit light blue, light green, light gray, etc. so that the adhesion of dust can be easily confirmed. However, on the other hand, the presence of the pigment is not preferable, and there is a view that an additive-free transparent one is better.

  It can be used as a dust remover that removes foreign substances present in products such as electronic boards on which electronic parts and the like used for various precision instruments that are difficult to confirm by visual inspection.

It is explanatory front view which shows the manufacture process of the dust removal tool which is an Example of this invention. It is sectional drawing which shows the state which accommodated the dust removal tool in the storage case which stores and stores the dust removal tool of this invention, and covered the outer cover. It is sectional drawing which shows a mode that the dust removal tool of this invention is taken out from the storage case stored and stored with an operation stick. It is explanatory drawing for obtaining the multiple types of adhesive rubber from which an adhesive rubber diameter differs using a pipette tip as an ultrafine pipe of the dust removal tool of this invention. It is a cross-sectional partial enlarged view of the circumferential groove shown by a in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 .... Dust removal tool 2 .... Pipette tip 3 .... Adhesive rubber 4 .... Adhesive rubber tip part 5 .... Cut part 6 .... Storage case 7 .... Inner lid 8 ... Operation rod 9 ... Hole 10 ... Tail 11 ... Cut 12 ... Bottom 13 ... Outer lid A ... Circle cut Groove B ... Circumferentially grooved C ... Circumferentially grooved D ... Circumferentially grooved

Claims (4)

Filled with less than half of the total length of the pipe with an adhesive rubber inside an ultra-fine plastic pipe, molded with the adhesive rubber filling side, leaving only the tip of the pipe, leaving the adhesive rubber, stripping the adhesive rubber, and preparing the other side in advance A dust remover characterized by having a shape that allows the inserted operation rod to be inserted and fitted. Adhesive rubber is filled into the dropper-shaped plastic pipe that becomes thinner as the inner diameter goes to the tip, and is molded by filling less than half the total length of the pipe, and the adhesive rubber filling side is cut off only the tip of the pipe leaving the adhesive rubber. A dust remover characterized in that the rubber is exposed and an operation bar prepared in advance on the other side is inserted and fitted. Adhesive rubber is molded into a plastic pipe by filling approximately 90% of the total length of the pipe, leaving the adhesive rubber on the pipe outer periphery, leaving a circumferential groove to the end of the pipe inner diameter. The dust removing tool according to claim 1 or 2, wherein an arbitrary adhesive rubber diameter is obtained by applying several places between the base and the base in advance. Even if a pressing force that inserts and fits the operation rod into the fitting part that can be fitted with the operation rod on the opposite side of the adhesive rubber from which the dust removal tool is exposed, it is set on the dust removal tool storage stand prepared separately. The dust removing tool according to any one of claims 1 to 3, wherein a flange portion is formed on an outer diameter of the dust removing tool so that the dust removing tool does not move.

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