JP5616544B1 - Dust dust suction tool - Google Patents

Abstract

In a dust dust suction tool having an opening on both ends, the tip of a fiber bundle part may be sucked into the suction port, closing the suction port and making it impossible to operate. Also, the fiber side portion is squeezed at the end of the insertion port, and dust is scattered outside. An inner cylinder having an opening through which holes or dry mops can be inserted, penetrated, and inserted at both ends, and a suction hole group through which air circulates on the entire circumference or substantially semicircular circumference of the intermediate wall between the openings at both ends. And a suction chamber made of an outer shell that covers the suction hole group from the outside, and a connecting joint portion that communicates with the suction chamber and the suction device. [Selection] Figure 1

Description

The present invention is a vacuum cleaner or dry mop that cleans dust accumulated on the upper surface of a furniture or in a gap (hereinafter referred to as a "blade"), and in particular, an electric cleaning that effectively removes electrostatic adsorption type dust that adheres and removes dust by static electricity. The present invention relates to a dust dust suction tool used in connection with a machine or a suction device.

Hataki has been widely used for a long time as dust on top of fences, shoji piers and blinds. Structurally, there are a lot of synthetic fibers bundled and attached around the tip of a thin rod or around the rod (hereinafter referred to as fiber bundle part). It is also suitable for cleaning the top surface. The cross section of the fiber bundle part is often circular, and the diameter is 4 to 8 cm. Moreover, the length of the fiber bundle part ranges widely from 5 to 100 cm. The disadvantage of the traditional grouper, such as cloth, is that it scatters dust, and recently, synthetic fiber-based grouper, which attaches dust by static electricity, has become mainstream. Cleaning dirty dirt is usually a brushed surface, but is only possible outdoors. In addition, dedicated suction cleaning devices that can be processed indoors have appeared, but are expensive. For this reason, the need for an inexpensive dust inhaler using a widely used electric vacuum cleaner is high, but it is not sufficient in terms of practicality.

The following have been proposed as the above measures.
Patent Document 1 relates to a dust removal assisting tool that removes dust adhering to a synthetic fiber group by static electricity using a suction type vacuum cleaner, and has an opening on one side of the hollow body and a vacuum cleaner on the other side. A suction port is provided, and a scraper is inserted from the opening, and the suction vacuum is connected to the suction port, and the suction dust is removed. Furthermore, the air flow is branched between the suction pipes of the vacuum cleaner with a normal floor head tool attached, and communicated with the suction type vacuum cleaner through a connecting part that opens and closes. It is devised so that dust can be removed.

Patent Document 2 has a structure in which a suction port is provided at the bottom of a cylindrical container with a built-in static elimination cloth, and dust that has fallen on the bottom due to static elimination is removed by suction.

Patent Document 3 is configured such that an opening is provided on one side of a hollow body and a suction port communicating with a vacuum cleaner is provided on the other, and a scraper is inserted from the opening and suctioned and removed by a vacuum cleaner connected to the suction port. Has been. The cylindrical hollow body has a conical shape with a narrower diameter toward the suction port, and a plurality of radial ribs projecting from the inner peripheral surface along the longitudinal direction.

Patent Document 4 includes an inner shell having a suction port and an outer shell communicating with a suction pipe of a cleaner. Integrated with the vacuum cleaner. One of the cylindrical inner collar and the end of the outer shell is an insertion port, the other is closed, and is sucked from the center of the outer shell.

Patent Document 5 discloses a mop dust suction tool that is connected to the main body of an electric vacuum cleaner and can be easily attached in the middle of a hose that has a floor cleaning suction part attached to the tip thereof. The peripheral wall includes a receiving wall portion that occupies a substantially semi-cylindrical portion along the length direction and a cover wall portion that occupies the substantially semi-cylindrical portion of the facing surface, and the inner surface is formed on a substantially central side surface of the receiving wall portion. A connecting pipe communicating from the side is provided, and a cylindrical fiber bundle part provided with a cut line penetrating in the length direction is provided in a part of the covering wall part.

JP 2004-242731 A JP-A-8-336494 Japanese Patent Publication No. 2008-136710 Japanese Patent Publication No. 2011-87669 Japanese Patent No. 5025031

As for the cleaning tool of the blade shown in Patent Documents 1 to 4, the length of the fiber bundle part that can be cleaned is limited. That is, the other end opposite to the insertion end of both ends of the cylindrical hollow body is a suction port thinner than the diameter of the cylindrical body or is closed. Therefore, the length of the fiber bundle portion of the insert that can be inserted is equal to or shorter than the length of the cylindrical hollow body. On the other hand, the length of the fiber bundle part of the group is the most widespread and is 30 to 50 cm, which tends to be longer in special applications. If the hollow body is lengthened, there is no problem in function, but it is a big problem in practical use. Compactness is extremely important from the viewpoint of ease of handling, installation location, and storage.

In Patent Document 5, both ends are open. For this reason, the mop can penetrate and the restriction of the length of the applicable stack is eliminated.
However, there are the following problems.
The first problem is that when the fiber bundle part reciprocally moves the tail of the animal, the tip of the fiber bundle part is sucked into the suction port, and the suction port may be blocked and the operation becomes impossible. Corresponding to this, the structure is such that the intake area can be adjusted by adjusting the cross-sectional area of the suction port in advance, but this method reduces the suction capacity of the vacuum cleaner and uses it. Decrease drastically.
The second problem is a substantially cylindrical mop dust suction tool that is open at both ends. When sucked from the substantially semicircular wall side, the mop is pressed against the suction wall and squeezed by the suction wall inside the cylinder. This has the effect of increasing the cleaning efficiency. However, when the cross section of the mop is deformed inside the cylinder, that is, when the cross section is circular, the suction wall side becomes flat. At this time, the fiber bundle portions outside the both ends of the cylindrical body are kept circular. For this reason, the fiber side part protrudes to the outer side of the outer peripheral wall of a cylinder in the boundary of both ends. When the mop is reciprocated in this state, a part of the fiber side (suction wall side) is squeezed by the insertion port at the insertion port, and dust is scattered outside. In the dust removal work indoors, the above is a very important problem to be solved.

1st invention has the suction hole group which air distribute | circulates to the perimeter of the wall surface of the intermediate part of the opening part which can insert a penetration or a dry-type mop at both ends, and penetrates and pulls out, and the said opening part of both ends, or a substantially semicircle An inner cylinder, a suction chamber made of an outer shell covering the suction hole group from the outside, and a connection joint portion communicating with the suction chamber and the suction device are provided. The dust is removed by suction of an electric vacuum cleaner in the process of being inserted from the front end through one opening of the cylindrical hollow body and inserted / removed. Since the blade can penetrate the cylindrical hollow body, it can be cleaned no matter how long. Further, the suction hole group and the suction chamber can solve the first problem described in paragraph 0010. The reason is described below. In the case of the conventional method in which the suction port is directly arranged on the wall surface of the hollow body, the cross-sectional area of the suction port is about 7 square cm, which is equivalent to the cross-sectional area of the suction pipe of the vacuum cleaner. The performance of the vacuum cleaner is indicated by the suction power. The suction work rate is the product of the air volume and the degree of vacuum, and the resistance of the suction path is low.For example, when there is no load, the air volume is large, and the air velocity at the suction port is divided by the cross-sectional area of the suction port. Has occurred. Due to this air flow, a force drawn into the suction port works on the fiber bundle group. When the blade is inserted from the tip, if the tip of the fiber bundle group blocks a part of the suction port, the cross-sectional area of the suction port decreases. In this case, the air volume decreases, but the degree of vacuum increases, the suction force increases, and the suction port is instantly closed. In order to release this, the vacuum cleaner must be stopped once and the suction port closed. Therefore, prevention of suction port blockage is an important issue.

In the present application, this problem is solved by the suction hole group and the suction chamber. That is, a suction hole group is provided on the suction wall of the inner cylinder in contact with the fiber bundle, a cover that covers the suction hole group is provided to form a suction chamber, and a suction port that communicates with the vacuum cleaner is provided in the suction chamber. Thereby, the suction cross-sectional area in contact with the fiber bundle group can be expanded to a necessary and sufficient size. For example, when the length is 8 cm, the width is 6 cm, and the porosity is 0.5, it is 24 square cm, which is slightly more than three times the cross-sectional area of the suction pipe, and the flow velocity acting on the fiber bundle group can be reduced. In addition, since the suction wall in contact with the fiber bundle group is formed of a plurality of suction hole groups, even if the fiber bundle group partially blocks individual holes, the probability of blocking all the holes at once. Is drastically reduced, and blockage of the suction path can be prevented.

According to a second aspect of the present invention, there is provided a suction tool having a suction hole group and an intake chamber on a substantially semicircular circumference of the wall surface, and an external air inflow hole group is provided on a part of the wall surface facing the suction hole group of the inner cylinder. It is characterized by things.
Outside air flows from both openings of the suction tool and also from the inflow hole. The air from the inflow hole flows to the suction chamber while entraining dust and dust adhering to the surface of the fiber bundle group, and presses the fiber bundle group against the wall surface where the suction hole group is located. This makes the ironing work on the wall effective. This is particularly effective when the outer diameter of the fiber bundle group is thinner than the inner cylinder.

The third invention has a trumpet-shaped insertion port that tapers in at least one of the opening portions at both ends of the inner cylinder toward the insertion direction of the chisel, and is rounded inward along the maximum diameter portion of the trumpet-shaped insertion port. According to the first or second aspect of the present invention, there is provided a dust suction tool according to the first or second aspect, wherein a plurality of air inflow holes are provided in a side surface of the edge.
The present invention is a solution to the second problem of dust scattering outside the suction tool described in paragraph 0010. The maximum diameter of the trumpet-shaped insertion port is made larger than the diameter of the fiber group to be dust-removed. In the present application, the dust squeezed off at the end of the inner cylinder is drawn into the center of the inner cylinder by riding on the airflow flowing through the trumpet-shaped insertion port. Further, a part of the dust that has fallen out of the airflow slides down the inner surface of the trumpet-shaped insertion port and gathers at the rim provided on the outermost periphery. The edging is provided with an inflow hole through which outside air flows, so that it is drawn into the center of the inner cylinder again by riding on this air flow.

A fourth invention is the suction hole described in the first or second invention, wherein the shape of the suction hole penetrates along the central axis and protrudes conically toward the central axis of the inner cylinder. It is a feature. High-speed air flows toward the suction chamber through each suction hole communicating with the suction chamber. Each fiber of the fiber group is drawn to the suction chamber side by this air. For this reason, a part of the suction hole may be blocked by the fiber. If the suction port has a convex conical shape toward the inner surface, the fibers are less likely to be drawn into the suction chamber. Further, during the reciprocating motion along the axis of the suction tool, the tip of the fiber group comes into contact with the convex suction port and is effectively dedusted.

Furthermore, in the dust dust suction tool, the outer dimensions are one of the extremely important elements from the practical point of view. The dust dust suction tool of the present application has a total length of 40 cm or less and can correspond to a general-purpose group.

It is possible to provide a practical dust suction tool that is relatively compact and inexpensive and can remove general-purpose scrapers having various external dimensions in a room.

1 is a perspective view showing Embodiment 1. FIG. 1 is a front view of Embodiment 1. FIG. 1 is a side view of Embodiment 1. FIG. It is AA sectional drawing of FIG. It is the front view and partial sectional view of Embodiment 2. FIG. 6 is a transverse central sectional view of FIG. 5. It is the front view and partial sectional view of a trumpet-shaped insertion port.

Examples of the present invention are described in detail below.
1 is a perspective view illustrating the first embodiment, FIG. 2 is a front view of the first embodiment, FIG. 3 is a side view of the first embodiment, FIG. 4 is a cross-sectional view taken along the line AA in FIG. FIG. 6 is a transverse central sectional view of FIG. 5, and FIG. 7 is a front view and partial sectional view of a trumpet-shaped insertion port.
The first embodiment will be described with reference to FIGS. As shown in FIGS. 1 to 4, a suction tool 1 according to the present invention includes a trumpet-shaped insertion port 2, an inner cylinder 3, an outer shell 4, a suction chamber 5, and a suction connection portion 6. Connected to the suction pipe 7 of the machine.
Detailed structures of the inner cylinder 3 and the outer shell 4 related to the suction chamber 5 are shown in FIGS. In other words, a plurality of suction holes 8 are provided along the periphery of the central portion in the length direction of the inner cylinder 3, the outside is covered with the outer shell 4, and the suction chamber 5 is interposed between the inner cylinder 3 and the outer shell 4. Is forming. The suction chamber 5 is provided with a suction connection portion 6.
The trumpet-shaped insertion port 2 is tapered toward the inner cylinder 3. Further, as shown in FIG. 7, the edge portion 12 of the trumpet-shaped insertion port 2 is provided with an edge flange 12 that is rounded in a bowl shape along the end portion. An inflow hole (B) 15 is provided on the side surface of the edge along the periphery.

As shown in FIG. 1, the blade 10 is inserted into the inner cylinder 3 from the insertion port 2. At this time, the vacuum cleaner 13 exhausts the air in the suction chamber 5 through the suction connection portion 6.
That is, the suction chamber 5 has a negative pressure, and sucks air around the fiber bundle portion 11 containing dust through a group of suction holes 8 provided in the inner cylinder 3. External air is supplied through the fiber bundle around the insertion port 2. The scraper 10 is manually reciprocated in the axial direction of the inner cylinder 3, and the dust adhering to the fiber bundle portion 11 in this operation is trapped in the filter (not shown) of the cleaner 13 along the air flow. Only clean air is released to the outside.

The function of the trumpet-shaped insertion port 2 will be described with reference to FIG. As described in the second problem in paragraph 10, prevention of dust scattering at both ends of the inner cylinder 3 to the outside is one of the important problems. The trumpet-shaped insertion port 2 can temporarily catch dust generated at both ends of the inner cylinder 3 at the inner wall of the insertion port and guide the dust to the inner cylinder 3 by an internal airflow. Further, a part of the dust sliding down the inner wall can be temporarily received by the edge rod 12 and can be carried on the air flowing in from the inflow hole (B) 15 on the side surface of the rod and carried to the inner cylinder 3. Due to the above structure, the scattering of dust to the outside is drastically reduced.
In addition, the trumpet-shaped insertion port 2 can smoothly insert the fiber bundle portion 11 of the paper, and since air smoothly flows to the inner cylinder 3 side along the outer periphery of the fiber bundle portion 11, dust is efficiently sucked, As a result, the dust adhering to the fiber bundle portion 11 can be greatly reduced from scattering at the insertion port. Note that the maximum diameter of the trumpet-shaped insertion port 2 must be larger than the diameter of the fiber bundle portion 11. Specifically, since the diameter of the fiber bundle portion 11 of the general-purpose group is almost 8 cm or less, the maximum diameter was set to 12 cm.

The suction hole 8 provided in the wall surface of the inner cylinder 3 has a conical shape (not shown) in which the shape of the suction hole penetrates along the central axis and protrudes toward the central axis of the inner cylinder. As a result, the fiber bundle portion 11 can be mechanically squeezed to remove dust. In addition, this is effective for the blocking of the suction port described in the first problem of paragraph 0010.
Moreover, 5-20 mm is appropriate for the diameter of the suction hole. This is because if it is too large, the fiber bundle portion 11 can be easily drawn. The diameter of the general-purpose fiber bundle is about half of the released state when crushed from the periphery, that is, the diameter of the fiber bundle portion 11 of the 80-mm diameter fiber bundle is about 40 mm when crushed from the periphery by high-speed airflow. The diameter of the fiber bundle portion 11 of a general-purpose group is about 40 mm at a minimum, and becomes about 20 mm when crushed from the periphery. Therefore, it is desirable that the diameter of the suction hole is at least 20 mm or less so that the tip of the fiber bundle portion 11 is not drawn. On the other hand, if the suction hole diameter is too small, clogging with cotton dust occurs. For this reason, it is desirable that it is at least 5 mm or more.
The shape of the suction hole may be a plurality of slits along the axis or a long hole in addition to the circular shape.

The inner cylinder 3 shown in FIG. 1 may be a hollow body having openings 16 at both ends, and may be a round pipe, a polygonal pipe, a sphere, a rectangular parallelepiped, or the like. Further, the above suction tool 1 is directly attached to the suction pipe 7 of the vacuum cleaner 13, and is equivalent even if the suction tool 1 is placed separately and exhausted by the vacuum cleaner 13 or other suction device via the suction connection portion 6. It is obvious that this function can be demonstrated.

Next, Embodiment 2 will be described with reference to FIGS. As shown in FIGS. 5 to 6, the suction hole 8 of the inner cylinder 3 is provided in a substantially semicircular circumference of the inner cylinder, and the outer shell 4 and the suction chamber 5 covering the group of suction holes 8 are also provided in a substantially semicircular circumference. Yes. Further, in the inner cylinder 3, an inflow hole 9 is provided on a wall surface facing the group of suction holes 8. Other structures are the same as those of the first embodiment.
The air flow in the second embodiment is different from that in the first embodiment. That is, in the first embodiment, external air is sucked only from the trumpet-shaped insertion port 2, passes around the fiber bundle portion 11 or in the fiber bundle portion 11, the inner cylinder 3, and the suction chamber 5, and Exhausted to the outside. On the other hand, in the second embodiment, external air is sucked from the inlet 9 of the inner cylinder 3 in addition to the air flow.

The air from the inflow port 9 has an action of pressing the fiber bundle portion 11 against the wall surface of the suction holes 8 group facing each other. For this reason, the effect of squeezing the fiber bundle portion 11 with the wall surface is increased by the reciprocating movement of the blade. This is particularly effective when the outer diameter of the fiber bundle portion 11 is smaller than the inner diameter D of the inner cylinder 3. In the above state, in the first embodiment, the fiber bundle portion 11 and the wall surface of the inner cylinder 3 are in extremely soft contact with each other and the wind passes therethrough. For this reason, the dust inside the fiber bundle part 11 is difficult to remove. On the other hand, in the second embodiment, the fiber bundle portion 11 is forcedly pressed against the wall surface of the suction hole 8 group of the inner cylinder 3, and dust can be efficiently removed by the effect of ironing.
Thereby, the suction cleaning of the small-diameter fiber bundle portion 11 can be handled without any problem. Specifically, if the inner tube 3 has a diameter of 8 cm and the insertion port has a diameter of 12 cm and the fiber bundle portion 11 has a diameter of 8 cm or less, dust can be efficiently removed regardless of the outer diameter.

Further, the static electricity charged in the chisel 10 can be removed by making a part or all of the inner cylinder 3 of a conductive material such as metal and grounding it. This is extremely effective for cleaning the chisel 10 made of a chargeable fiber or the like.

DESCRIPTION OF SYMBOLS 1 Suction tool 2 Trumpet shape insertion port 3 Inner cylinder 4 Outer shell 5 Suction chamber 6 Suction connection part 7 Vacuum pipe suction pipe 8 Suction hole 9 Inflow hole 10 Textile 11 Fiber bundle part 12 Edge 13 Electric vacuum cleaner 14 Flow 15 Inflow hole (B)
Total length D of PL suction tool Inner diameter of inner cylinder

Claims (1)

An inner cylinder having a suction hole group that has an opening through which both ends and a dry mop can be inserted, penetrated and removed, and through which air flows around the entire circumference or substantially semicircular of the wall surface of the intermediate part; A suction chamber made of an outer shell covering from the outside, a suction connection portion communicating with the suction chamber and the suction device, and a trumpet taper toward at least one of both end openings of the inner cylinder toward the insertion direction The insertion hole is rounded inward along the largest diameter part of the trumpet-shaped insertion opening, and a plurality of air inlet holes are provided in the insertion direction on the side of the edge. A dust suction tool for fireworks.

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