JP2003223998A - Portable antistatic dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suitable portable antistatic dust collector for recovering minute materials adsorbed at a collecting sheet by static electricity by removing them from the collecting sheet. <P>SOLUTION: At this device, a suction port 13 is installed at the main body 1 having a handle 2, and in the main body case 1, a battery 8, a suction fan 5 to collect the dust from the suction port 13 by driving by this battery, a high voltage generation circuit 7 to generate the high voltage by using the battery as the power supply, and an antistatic electrode to remove the electricity by generating ions toward the neighborhood of the suction port are built in. The suction port 13 and dust-collecting housing part 17 are installed at a dust collecting cassette 6 removable to the main body case 1. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable static eliminator that is operated by holding it by hand to remove dust while removing static electricity.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Application Laid-Open No. 4-19539 and Japanese Patent No. 2691705, the applicant of the present invention has traces of traces, hair, and other small objects left by a criminal at a crime scene that are difficult to see with the naked eye. We have provided a device for collecting and collecting fine particles by using static electricity, which has been adopted by police stations in various places and has contributed to the collection of criminal evidence.

This fine substance adsorption / collection device is composed of a charger having a high-voltage power supply and a discharge electrode built into a cylindrical body, and a flexible collection sheet made of an insulating material. The sampling sheet is applied to the surface, and the fine particles are adsorbed to the sampling sheet by moving the charging device by hand so as to scan when the charging sheet is slightly separated from the sampling sheet.

[0004]

Conventionally, when fine particles adsorbed on a collection sheet are removed from the collection sheet and collected, the charge is removed by using the charge removal function provided in the charger, or the charge is not removed. Since it was wiped off by hand,
The work is troublesome, and there are problems such as omission of sampling.

It is an object of the present invention to provide a portable static eliminator which is suitable for removing and collecting from the collecting sheet the fine substances electrostatically adsorbed on the collecting sheet as described above.

[0006]

In the portable static eliminator and dust collector according to the present invention, a main body case having a handle is provided with a suction port, and in the main body case, a battery and a battery are driven by the battery to suck dust from the suction port. Built-in suction fan, high voltage generation circuit that generates high voltage using battery as power source, and static elimination electrode that discharges when the high voltage is applied and generates ions toward the vicinity of the suction port to eliminate static electricity. Is characterized by.

When fine particles are collected from the above-mentioned sampling sheet using this portable static eliminator, if the suction port is moved toward the surface of the sampling sheet and moved along the suction port, the vicinity of the suction port is discharged. The fine matter is sucked from the suction port and stored in the dust-collecting body storage portion.

If the suction port is directed to the lower side of the main body case and a roller is attached to the lower surface of the main body case, dust can be smoothly sucked while moving the main body case.

If the suction port is horizontally long and the static elimination electrode is a saw-toothed electrode extending parallel to the suction port, the static charge near the suction port can be averaged.

If the suction port and the dust storage unit are provided in the main body case in a detachable dust collection cassette, it is easy to take out the dust-collected fine particles and then clean the inside.

If a valve film, which is normally closed and is bent and opened by air pressure sucked from the suction port, is provided between the suction port and the dust-storing part, the dust-storing part and the dust-storing part can be stored in the dust-storing part. Can be done with a simple structure.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 to 3, this portable type static eliminator can be carried by a handle 2 provided on the upper surface of a box-shaped main body case 1, and can also be carried by the handle 2 and the dust-collected surface 3 By running on the main body case 1, the main body case 1 is discharged while the charge is removed by the static elimination unit 4 provided in the main body case 1.
The suction fan 5 therein sucks dust and collects it in a dust collecting cassette 6 which is detachably attached to the main body case 1.

The high voltage generating circuit 7 and the suction fan 5 of the static eliminator 4 are provided outside the side surface of the main body case 1 by using a rechargeable battery 8 detachably housed in the upper part of the main body case 1 as a power source. It is driven by turning on the power switch 9.

In the lower part of the front side of the main body case 1, the lower side of the electrode accommodating portion 10 is absent, and a horizontally long cassette accommodating concave portion 11 is formed at the rear side of the electrode accommodating portion 10. As shown in FIG. 4, the cassette housing recess 11 can be detachably fitted from below.

5 to 7 show the dust collecting cassette 6. In the main body block 12 of the dust collection cassette 6, a horizontally long suction opening 13 is formed on the lower surface, and a fan suction opening 14 larger than the suction opening 13 is formed on the rear surface. Dust suction passage 1 inside the mouth 14
5 is formed. The dust suction passage 15 is opened to the dust suction passage 15 while bending the front inner surface 15a and the rear inner surface 15b thereof.

A valve membrane 16 which is a flexible thin plate is provided midway in the dust suction passage 15. This valve membrane 16
Has its base end affixed to the rear inner surface 15b of the dust suction passage 15, and its restoring force normally causes the front end to abut the front inner surface 15a as shown in FIG. Close in a curved shape. In this state, the space between the valve membrane 16 and the fan suction port 14 serves as the dust-containing material storage unit 17. When the suction fan 5 is driven, the suction force causes the valve membrane 16 to be further curved as shown in FIG. 6 so that the front end portion is separated from the front inner surface 15a and the dust suction passage 15 is opened.

On the lower surface of the main body block 12 of the dust collecting cassette 6, a pair of large rollers 19 are pivotally supported in a pair of concave portions 18 near both ends of the suction port 13 with a part of the large rollers 19 protruding from the concave portion 18. .

On the other hand, in the main body case 1, a filter 2 having a size that covers the entire surface of the fan suction port 14 of the dust collecting cassette 6 is provided.
0 is detachably set on the front side of the suction fan 5, and a pair of small rollers 21 are pivotally supported on the rear surface of the lower surface of the main body case 1 with a part of the roller 21 protruding from the recess. Further, on the rear surface of the main body case 1, as shown in FIG. 3, a large number of small exhaust holes 22 are provided.

The static eliminator 4 in the main body case 1 is provided such that the sawtooth static eliminator 23 as shown in FIG. 2 is parallel to the suction port 13, and a high voltage is applied from the high voltage generating circuit 7. As a result, ions are generated toward the front side of the suction port 13.

Since this portable static eliminator / dust collector has the above-mentioned structure, when the dust-collecting surface 3 is, for example, a sampling sheet on which the above-mentioned fine particles are adsorbed, the power switch 9 is turned on and the handle 2 is turned on. When the main body case 1 is held and run on the sampling sheet, the fine substances on the sampling sheet can be sucked from the suction port 13 while removing the charge near the front side of the suction port 13 by the ions from the static elimination electrode 23. Since the dust collected fine particles are stored in the dust collecting container 17 in the dust collecting cassette 6, turn off the power switch 9 and then remove the dust collecting cassette 6 from the main body case 1 as shown in FIG. If
At that time, since the valve film 16 is closed, by vibrating the dust collection cassette 6 with the fan suction port 14 facing downward, it is possible to easily take out the fine matter in the dust-collected material storage portion 17.

[0022]

As described above, according to the portable static eliminator of the present invention, when the suction port is moved toward and along the surface to be dust-collected, the fine particles are sucked in while the vicinity of the suction port is being neutralized. As it is sucked from the mouth and stored in the dust storage,
It is suitable for recovering by removing from the collection sheet a fine substance that is electrostatically adsorbed on the collection sheet.

When the suction port is directed to the lower side of the main body case and the roller is attached to the lower surface of the main body case as in the second aspect of the invention, dust can be smoothly sucked while moving the main body case.

When the suction port is horizontally long and the static elimination electrode is a saw-toothed electrode extending parallel to the suction port as in the invention according to claim 3, static elimination in the vicinity of the suction port can be performed on average.

As in the invention according to claim 4, if the suction port and the dust-collecting material storage portion are provided in the dust-collecting cassette that can be attached to and detached from the main body case, it is easy to remove the dust-collected fine particles and then clean the inside. You can do it.

According to the fifth aspect of the present invention, if a valve film that is normally closed and is bent and opened by the air pressure sucked from the suction port is provided between the suction port and the dust storage part, the dust suction member can be provided. A simple structure can be used to absorb and store fine particles in the storage section.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a portable static eliminator according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a side view showing a state in which a dust collecting cassette is removed.

FIG. 5 is a cross-sectional view of the dust collection cassette with the valve membrane closed.

FIG. 6 is a sectional view showing a state in which the valve leaf is closed in the same manner.

FIG. 7 is a perspective view of a dust collection cassette.

[Explanation of symbols]

1 body case 2 handles 3 Target surface for dust collection 4 Static eliminator 5 suction fan 6 Dust collection cassette 7 High voltage generation circuit 8 batteries 9 power switch 10 Electrode storage 11 Cassette storage recess 12 body block 13 Suction port 14 Fan suction port 15 Dust collection passage 15a front inner surface 15b rear inner surface 16 valve leaflets 17 Dust collection unit 18 recess 19 large roller 20 filters 21 small roller 22 Exhaust hole 23 Static elimination electrode

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H01T 23/00 H01T 23/00 F term (reference) 3B006 KA06 3B057 DE03 3B062 AF02 5G067 AA64 DA01 DA18 DA22

Claims (5)

[Claims] 1. A main body case having a handle is provided with a suction port and a dust accommodating portion, and a battery and a suction driven by the battery to suck dust from the suction port to the dust accommodating portion in the main body case. Built-in a fan, a high voltage generation circuit that generates a high voltage using the battery as a power source, and a static elimination electrode that discharges when the high voltage is applied and generates ions toward the vicinity of the suction port to eliminate static electricity. A portable static eliminator that is characterized by 2. The portable static eliminator according to claim 1, wherein the suction port faces the lower side of the main body case, and a roller is mounted on the lower surface of the main body case. 3. The portable static eliminator according to claim 1, wherein the suction port is horizontally long and the static elimination electrode is a sawtooth electrode extending parallel to the suction port. 4. The portable static eliminator / dust collector according to claim 1, 2 or 3, wherein the suction port and the dust-collecting material storage section are provided in a dust collecting cassette which is detachably attached to the main body case. 5. The mobile phone according to claim 4, further comprising a valve membrane, which is normally closed and which is bent and opened by air pressure sucked from the suction port, is provided between the suction port and the dust-collecting material storage portion. Type static eliminator.