JP3546050B1 - Stationary electric vacuum cleaner - Google Patents

Abstract

【Task】
Provided is a stationary electric vacuum cleaner that can collect dust efficiently even with a low-power inexpensive driving unit, uses an inexpensive dust storage bag that does not allow air to pass through, and can reduce running costs.
[Solution]
Since the cleaner body 12 is placed on the floor and the suction port 11 is formed at the lower end of the front plate of the cleaner body 12, there is no gap between the suction port 11 and the floor surface, and a low-power inexpensive fan. Even 20 can collect garbage well. Since the negative pressure of the internal space 13 is utilized by using the vacuum chamber 16 in the internal space 13, an inexpensive plastic bag 18 can be used instead of the conventional expensive waste storage bag having a net shape. As a result, the running cost can be reduced.
[Selection diagram] Fig. 1

Description

  The present invention relates to a stationary electric vacuum cleaner, and more particularly, to a stationary electric vacuum cleaner which is always installed on a floor or the like.

BACKGROUND ART As a conventional stationary electric vacuum cleaner, for example, one described in Patent Document 1 is known.
As shown in FIGS. 4 and 5, the stationary electric vacuum cleaner of Patent Literature 1 has a box-shaped main body 101 that can be moved by casters 100. A vacuum motor 102 is accommodated in a rear portion of the bottom of the main body 101. A discharge port 103 is formed in a rear plate of the main body 101 at a portion facing the vacuum motor 102. At the front end of the bottom plate of the main body 101, a downward suction port 104 facing the floor surface is formed. A suction path 105 whose lower end communicates with the suction port 104 is defined in the front part of the main body 101. The upper end of the suction path 105 communicates with the upper space of the main body 101 via the upper guide hole 106. A large garbage storage space 108 capable of storing the net-shaped garbage storage bag 107 is defined below the upper space. In addition, a dust outlet 109 is formed in the front plate of the main body 101, and an input port 110 for inputting large-sized waste is formed in the upper plate of the main body 101. The garbage outlet 109 is configured to be openable and closable by a lateral lid 111, and the inlet 110 is configured to be openable and closable by an upper lid 112.

Next, the operation of the stationary vacuum cleaner of Patent Document 1 will be described.
As shown in FIGS. 4 and 5, when the vacuum motor 102 is driven, a negative pressure is generated inside the main body 101, and dust on the floor is sucked vertically from the suction port 104 to the suction path 105. Next, the refuse passes through the upper space from the upper guide hole 106, is sucked into the refuse storage space 108, and is collected in the refuse storage bag 107. Further, the air inside the refuse storage space 108 passes through the stitches of the refuse storage bag 107 and is released to the atmosphere from the discharge port 103.
Japanese Utility Model Publication No. 5-80443

However, the stationary electric vacuum cleaner of Patent Document 1 has the following problems.
(1) The suction port 104 for sucking dust is formed downward on the bottom plate of the main body 101. For this reason, a large gap substantially corresponding to the height of the caster 100 appears between the suction port 104 and the floor. As a result, a high-output vacuum motor 102 is required to suck the debris on the floor without leaving any residue, which may increase the price.
(2) In Patent Document 1, the negative pressure of the vacuum motor 102 is applied to the suction port 104 through the stitches of the dust storage bag 107. Therefore, the large-sized garbage storage bag 107 must have a net shape or a filter shape that allows air to pass through. As a result, if the disposable garbage storage bag is employed in consideration of the easiness of the treatment after the garbage collection, the running cost may be increased.

Therefore, the present invention can satisfactorily collect garbage even if a low-power inexpensive driving unit is used, and can reduce running costs by using an inexpensive garbage storage bag such as a plastic bag. It is intended to provide a stationary electric vacuum cleaner.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a stationary electric vacuum cleaner capable of preventing clogging of a dust suction system path with dust, despite obtaining a large suction force.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a stationary electric vacuum cleaner capable of firmly holding a dirt trapping storage bag in a substantially maximum inflated state in an internal space of a cleaner main body.

The invention according to claim 1 is a box-shaped vacuum cleaner main body which is installed on a floor surface and has a suction port formed at a lower end of a peripheral side plate for sucking dust on the floor surface toward the internal space, and the internal space. A vacuum chamber is defined in the cleaner body above by way of a partition plate, and separates a vacuum chamber communicated with the internal space, the suction port, and the internal space through a communication portion provided in the partition plate. A suction tube communicating through a tube hole formed in the plate, a bag holding member for holding a sealable garbage storage bag in an upwardly opened and inflated state in the internal space, and an internal space of the cleaner body And a motor-driven suction device for reducing the pressure through the vacuum chamber, and a stationary type that collects dust sucked from the suction port into the dust storage bag through a suction pipe and a tube hole. An electric vacuum cleaner, wherein the bag holding member is arranged in a circumferential direction of the bag holding member. A stationary electric vacuum cleaner having substantially a whole area formed of an elastic body having a cylindrical shape that elastically presses against the peripheral side plate of the cleaner main body from inside, and having a box-shaped filter disposed in a communication part in the vacuum chamber. It is.

According to the first aspect of the present invention, when the suction device is operated, the vacuum chamber becomes negative pressure, and the internal space of the cleaner main body is made negative pressure through the communication portion. Thereby, for example, dust on the floor surface swept by the broom near the suction port is sucked into the internal space of the cleaner body from the suction port, and is collected in the dust storage bag.
As described above, since the cleaner body is placed on the floor and the suction port is formed at the lower end of the peripheral side plate, there is almost no gap between the suction port and the floor surface. Therefore, compared with the conventional case where a large gap exists between the suction port and the floor surface, dust can be collected well even by using a low-output and inexpensive driving unit.
Further, the negative pressure of the internal space is performed through a vacuum chamber defined by a partition plate on the internal space and a communication portion. For this reason, an inexpensive general-purpose bag such as a plastic bag can be adopted as the waste storage bag, instead of a net-shaped expensive waste storage bag. As a result, running costs can be reduced.

The fact that the main body of the vacuum cleaner is placed on the floor means a state in which a part or the entire bottom surface of the main body of the vacuum cleaner directly contacts the floor, and the main body of the vacuum cleaner does not easily move.
The material and size of the vacuum cleaner body are not limited. The shape of the vacuum cleaner body is not limited. For example, a vertically or horizontally long hexahedral box can be employed.
The vacuum cleaner body is a stationary type. However, normally, while in a stationary state, as necessary, a traveling unit (for example, manual traveling by pushing or pulling or automatic traveling) stored in the cleaner body, such as casters, wheels, and tires, protrudes downward. And may be movable.
The suction port may be formed on any of the front plate, the rear plate, and the left and right side plates of the cleaner body.

Forming the suction port at the lower end of the peripheral plate of the cleaner body means that the suction port is formed on the peripheral plate such that the lower side of the suction port is substantially in contact with the floor surface. The number of suction ports formed may be one, or two or more.
Inside the main body of the vacuum cleaner, there is formed an internal space in which a garbage storage bag is stored, and a vacuum chamber defined above the internal space via a partition plate. The internal space and the vacuum chamber are communicated through a communication portion provided on the partition plate. Part or all of the vacuum chamber may be filled with a filter material such as asbestos.

A simple communication port, a communication pipe, or the like can be adopted as the communication section. Further, the communication passage may have an arbitrary shape.
The material of the garbage storage bag is not limited. For example, various synthetic resins such as vinyl, polyethylene, and polypropylene can be employed. Alternatively, paper may be used. The garbage storage bag is a sealable bag such as a plastic bag .
The size, shape, and number of used garbage storage bags are not limited.

The material, size, and shape of the bag holding member are not limited. In short, it is only necessary that the dust storage bag can be held in an inflated state in the internal space of the cleaner body .

  As the suction device, for example, an electric fan that rotates an output shaft by an electric motor to rotate a rotating blade can be adopted. In addition, a negative pressure device incorporating a suction compressor may be used. The suction device may be arranged inside the cleaner body, or may be arranged outside the cleaner body. An example of externally disposing the suction device is to connect a hose of a commercially available vacuum cleaner to an exhaust port formed in the vacuum cleaner body. Since a commercially available cleaner is used, a suction device and a filter incorporated in the cleaner body can be eliminated.

According to a second aspect of the present invention, in the stationary vacuum cleaner according to the first aspect, the bag holding member includes an upper cylindrical holding cylinder and a holding holding plate suspended from the holding cylinder. It is a stationary electric vacuum cleaner.

  The bag holding member is an elastic body having a cylindrical shape capable of pressing substantially the entire area of the bag holding member against the inside of the cleaner main body. Therefore, in the internal space of the cleaner main body, dust is stored by the elastic force of the bag holding member. The bag can be securely held in its substantially maximum inflated state. Accordingly, even if the internal space of the cleaner body is negatively pressured by the negative pressure of the vacuum chamber through the communication portion, the dust storage bag is sucked toward the communication portion and does not collapse. As a result, a large garbage storage space can always be held in the garbage storage bag.

The bag holding member is not limited as long as it has a cylindrical shape. For example, examples of the cross-sectional shape include a circular shape, an elliptical shape, a triangular shape, and a polygonal shape such as a quadrangle. Here, the term “sealing” refers to a state in which the mouth of the garbage storage bag is sealed and air does not flow through the bag.

According to the first aspect of the present invention, since the cleaner body is of a stationary type on the floor and the suction port is formed at the lower end of the peripheral side plate, there is almost no gap between the suction port and the floor surface. As a result, it is possible to satisfactorily collect dust even with a low-output inexpensive driving unit.
In addition, since the negative pressure of the internal space is configured to use a vacuum chamber defined above the internal space, it is not an expensive waste storage bag having a conventional net shape, but an inexpensive plastic bag or the like. The use of general-purpose bags becomes possible. As a result, running costs can be reduced.

  In particular, according to the second aspect of the present invention, since substantially the entire area of the bag holding member is an elastic body having a cylindrical shape that can be pressed against the cleaner body from the inside, garbage can be stored in the internal space of the cleaner body. The bag can be securely held in its substantially maximum inflated state. Thus, a large garbage storage space can be always held in the garbage storage bag.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 3, reference numeral 10 denotes a stationary electric vacuum cleaner according to Embodiment 1 of the present invention. The stationary electric vacuum cleaner 10 is stationary with its bottom surface in contact with the floor, and has a front plate (peripheral side plate). A vertically long box-shaped vacuum cleaner body 12 having a suction port 11 formed at a lower end thereof for sucking dust on the floor toward the internal space 13, and an upper partition in the cleaner body 12 above the internal space 13. A vacuum chamber 16 defined through the plate 14 and communicated with the internal space 13 through a communication hole (communication portion) 15 provided in the upper partition plate 14, and a vacuum chamber 16 side of the upper partition plate 14 A box-shaped filter 17 which is attached to the main body and covers the communication hole 15 with sufficient space; a plastic bag (a garbage storage bag) 18 which is stored in the interior space 13 of the cleaner body 12 in an opened and expanded state; Vinyl in the internal space 13 of the main body 12 18 a bag holding member 19 for holding the expansion state, and a cleaner main body 12 electric fan 20 the inner space 13 to a negative pressure of (suction device).

Hereinafter, these components will be described in detail.
The cleaner body 12 is a vertical rectangular parallelepiped container (volume of about 50 liters) made of a synthetic resin. An opening is formed on the upper surface, and a lid 21 is detachably attached to the opening. The cleaner main body 12 has one of the four peripheral side surfaces having a short width as a front surface. Thus, the surface facing the front surface is the rear surface, the left surface when viewed from the front is the left surface, and the right surface when viewed from the front is the right surface.

  At the lower end of the internal space 13 of the cleaner body 12, a piping chamber 23 is defined via a lower partition plate 22. The piping chamber 23 is divided into a front partial piping chamber 25 having a relatively small space and a rear partial piping chamber 26 having a relatively large space by a horizontal partition frame 24 long in the left-right direction of the cleaner body 12. I have. The rear partial piping chamber 26 is formed by a vertical partition frame 27 long in the front-rear direction of the cleaner body 12 and has a left rear partial piping chamber 26A having a wide front end and a right rear part having a wide rear end. It is partitioned into a piping chamber 26B. The vertical partition frame 27 is a frame that is gradually bent to the left as it goes toward the rear of the cleaner body 12, and has a U-shape in plan view. Note that a filter such as asbestos may be stored in the partial piping chamber 26B on the right rear side downstream of the fan 20. As a result, it is possible to prevent the dust that could not be collected by the plastic bag 18 from being discharged to the outside, and to reduce noise.

  A fan hole is formed in the right end portion of the horizontal partition frame 24, and the fan 20 having the internal passage communicating with the partial piping chamber 25 on the right front side is mounted in the fan hole. The fan 20 has a structure in which a plurality of rotating blades are fixed to an output shaft of an electric motor. A discharge port 28 communicating with the right rear partial piping chamber 26B is formed in a rear plate of the cleaner body 12. The outlet 28 may be provided with a filter. A tube hole 24a is formed on the left side of the middle part in the length direction of the horizontal partition frame 24. Another pipe hole 22a is formed at the left corner of the rear of the lower partition plate 22. On the other hand, in the front right corner of the lower partition plate 22, a tube hole 22b communicating with the front partial piping chamber 25 and having a right-angled triangular cross section in a plane orthogonal to the axial direction is formed. ing. From the front partial pipe chamber 25 to the left rear partial pipe chamber 26A, the opening on the front side is communicated with the suction port 11 through the pipe hole 24a of the horizontal partition frame 24, and the opening on the original side is on the lower side. The first suction pipe 29 communicated with the pipe hole 22a of the partition plate 22 is stored.

  The lower end of the second suction pipe 30 extending vertically along the rear left corner of the cleaner body 12 is communicated with the pipe hole 22a. The lower end of a discharge pipe 31 which extends vertically along the front right corner of the cleaner body 12 and has a right-angled triangular shape in cross section is communicated with the pipe hole 22b. Rubber packings 32 are attached to the upper end of the second suction pipe 30 and the upper end of the discharge pipe 31, respectively. A switch 33 for turning ON / OFF the power supply to the fan 20 is provided on the right side of the upper end of the front plate of the cleaner body 12.

Inside the lid 21, the vacuum chamber 16 is defined by an upper partition plate 14 that closes an opening at the lower end of the lid 21. The upper partition plate 14 is detachably fitted or screwed to the lid 21. Thus, for example, when the box-shaped filter 17 is clogged, the cleaning or replacement of the box-shaped filter 17 is simplified.
At the left rear corner of the upper partition plate 14, a tube hole 14a through which the second suction tube 30 is communicated is formed. At the right front corner of the upper partition plate 14, a tube hole 14b having a right-angled triangular shape in a plan view is formed to communicate with the upper end of the discharge pipe 31. Further, another pipe hole 14c is formed at the center rear side of the upper partition plate 14. On the vacuum chamber 16 side of the upper partition plate 14, a downward suction U-shaped third suction pipe 34 that communicates the pipe hole 14a at the left rear corner with another pipe hole 14c is provided upright. . The communication hole 15 having a diameter of 50 mm is formed near the right rear corner of the upper partition plate 14.

  The box-shaped filter 17 is mounted on the side of the upper partition plate 14 on the side of the vacuum chamber 16 so as to cover the communication hole 15 with ease. Instead of the communication hole 15, a tubular communication portion may be used. The box-shaped filter 17 is a rectangular hexahedron that is long in the front-rear direction when viewed in plan. The material of the box-shaped filter 17 is not limited. For example, porous ceramics, porous metal, porous synthetic resin, paper or cloth (including nonwoven fabric) may be used. Here, a paper filter is employed. The shape of the box-shaped filter 17 may be, for example, a trihedron, a tetrahedron, a pentahedron, a heptahedron or more. The size of the box filter 17 is not limited. It is sufficient that the communication hole 15 can be covered from the vacuum chamber side via a space of a predetermined size. Note that, instead of the box-shaped filter 17, a flat plate filter may be employed.

The bag holding member 19 is elastically fitted in the upper part of the cleaner main body 12. The holding cylinder 35 has a substantially rectangular shape long in the front-rear direction of the cleaner main body 12 in plan view. Of the lower end portions of the left and right side plates, one or two pairs of holding plates 36 are suspended from the inside of the intermediate portion in the length direction of each side plate (see FIGS. 1 and 3 for one pair of holding plates). Show case).
At the rear left corner of the holding cylinder 35, an arc-shaped concave portion 35a is formed over the entire length of the holding cylinder 35 in the height direction, with a middle portion in the length direction projecting inward from the cylinder when viewed in plan. The concave portion 35a is necessary for interposing the second suction pipe 30 between the cleaner body 12 and the holding cylinder 35. Further, another concave portion 35b having a chamfered shape in plan view is formed in the front right corner of the holding cylinder 35 over the entire length of the holding cylinder 35 in the height direction. Another concave portion 25 b is necessary for interposing the discharge pipe 31 between the cleaner body 12 and the holding cylinder 35.

Next, a method of using the stationary vacuum cleaner 10 according to the first embodiment will be described.
As shown in FIGS. 1 to 3, first, a large plastic bag 18 is spread, and a bag holding member 19 is inserted into the bag. Specifically, the holding cylinder 35 is inserted from the upper end of the plastic bag 18 to the middle in the height direction, and the open state of the bag is held. In addition, the lower part of the plastic bag 18 is held in an open state by the respective holding plates 36. The plastic bag 18 is a sealable bag in which holes and slits are not formed.
Thereafter, the bag holding member 19 is elastically fitted in the internal space 13 of the cleaner body 12. Thereby, the holding cylinder 35 is pressed into the upper part of the cleaner main body 12 in a state where the plastic bag 18 is sandwiched between the cleaner main body 12 and the holding cylinder 35 with a predetermined elastic force. Thus, each holding plate 36 is pressed against the inside of the left and right side plates of the cleaner body 12. As a result, the plastic bag 18 is stored in the internal space 13 of the cleaner body 12 in an opened and expanded state. The upper end of the plastic bag 18 is folded into the internal space 13. The lower part of the plastic bag 18 is only partially held by each holding plate 36. Therefore, the lower part of the plastic bag 18 can swell arbitrarily in the region of the internal space 13. This makes it possible to reduce the size and cost of the holding cylinder 35 as compared to the case where the holding cylinder 35 is expanded to the entire area of the internal space 13. In addition, a large amount of garbage can be collected.

Next, the upper opening of the cleaner body 12 is closed by the lid 21. Thereby, while the 2nd suction pipe 30 and the 3rd suction pipe 34 are connected, the discharge pipe 31 and the vacuum chamber 16 are connected via the pipe hole 14b.
When the fan 20 is operated by turning on the switch 33, the vacuum chamber 16 is reduced in pressure. Thereby, the internal space 13 of the cleaner main body 12 is reduced in pressure through the communication hole 15. Accordingly, dust on the floor surface swept up by the broom to the vicinity of the suction port 11 is sucked from the suction port 11 into the internal space 13 of the cleaner body 12 through the first to third suction pipes 29, 30, and 34. Is collected in a plastic bag 18.
In the stationary electric vacuum cleaner 10 according to the first embodiment, the cleaner main body 12 is stationary on the floor as described above, and the suction port 11 is formed at the lower end of the peripheral side plate. Therefore, there is almost no gap between the suction port 11 and the floor surface. As a result, compared to the conventional case in which a large gap substantially equal to the height of the caster is present between the downwardly facing suction port 11 and the floor surface, the fan 20 can be satisfactorily utilized using the low-power and inexpensive fan 20. Waste can be collected.

Further, the negative pressure of the internal space 13 is performed using the vacuum chamber 16 defined above the internal space 13 via the upper partition plate 14. For this reason, an inexpensive plastic bag 18 can be used instead of a net-shaped expensive waste storage bag as a conventional waste storage bag. As a result, running costs can be reduced.
Negative pressure in the internal space 13 is performed using the vacuum chamber 16 via the upper partition plate 14 and the communication hole 15. If the size of the communication hole 15 is as small as, for example, about φ40 to 50 mm, the degree of vacuum in the vacuum chamber 16 can be easily increased even with the low-output fan 20, and the negative pressure of the suction port 11 also increases. However, the flow velocity of the air passing through the communication hole 15 increases accordingly, and, for example, hair (garbage) sucked into the internal space 13 is easily sucked into the vacuum chamber 16. Therefore, the sucked hair is then discharged to the outside of the cleaner body 12, and again stains the floor surface that should have been cleaned.

In order to solve this, it is conceivable to mount a flat plate filter in the communication hole 15, for example. However, if a flat filter is employed, the size of the filter is substantially the same as the opening area of the communication hole 15 and is substantially reduced. Therefore, clogging occurs in a short time, and the filter must be replaced frequently.
Therefore, in the first embodiment, a box-shaped filter 17 that covers the communication hole 15 is mounted on the upper partition plate 14 on the vacuum chamber 16 side. Thereby, the surface area is increased as compared with the case where the flat filter is mounted on the communication hole 15. Moreover, if the box-shaped filter 17 is used, even if the communication hole 15 is made small and a large suction force is applied to the suction port 11, clogging of the communication hole 15 hardly occurs. Further, since the box-shaped filter 17 is provided in the vacuum chamber 16, the volume of the internal space 13 is not reduced by the formation of the filter.

1 is an exploded perspective view of a stationary vacuum cleaner according to Embodiment 1 of the present invention. It is a cross-sectional view of the bottom of the stationary vacuum cleaner according to Embodiment 1 of the present invention. 1 is a vertical sectional view of a stationary electric vacuum cleaner according to Embodiment 1 of the present invention. It is a perspective view of the stationary electric vacuum cleaner which concerns on a conventional means. It is a longitudinal section of the stationary type electric vacuum cleaner concerning a conventional means.

Explanation of reference numerals

10 stationary electric vacuum cleaners,
11 suction port,
13 interior space,
12 vacuum cleaner body,
14 dividers,
15 communication hole (communication part),
16 vacuum chamber,
18 plastic bags (garbage storage bags),
19 bag holding member,
20 fan (suction device).

Claims (2)

A box-shaped vacuum cleaner body that is placed on the floor surface and has a suction port formed at a lower end of the peripheral side plate to suck dust on the floor surface toward the internal space,
A vacuum chamber defined in the cleaner body above the internal space via a partition plate, and communicated with the internal space through a communication portion provided in the partition plate;
A suction pipe communicating with the suction port and the internal space through a pipe hole formed in the partition plate;
In the internal space, a bag holding member that holds the sealable garbage storage bag in an inflated state opened upward,
An electric suction device that reduces the internal space of the cleaner body to a negative pressure through the vacuum chamber,
A stationary electric vacuum cleaner that collects the dust sucked from the suction port into the dust storage bag via a suction pipe and a tube hole ,
The bag holding member is formed of an elastic body having a cylindrical shape that elastically presses substantially the entire circumferential area of the bag holding member from the inside against the peripheral side plate of the cleaner body,
A stationary electric vacuum cleaner, wherein a box-shaped filter is disposed in a communication part in the vacuum chamber.   The stationary vacuum cleaner according to claim 1, wherein the bag holding member includes an upper cylindrical holding cylinder and a holding holding plate suspended from the holding cylinder.

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