JP4371972B2 - Dust bag for vacuum cleaner - Google Patents

Description

  The present invention relates to a dust bag for an electric vacuum cleaner that collects dust sucked by driving of an electric blower.

Conventionally, this type of dust bag for a vacuum cleaner is installed in a vacuum cleaner body that houses an electric blower, and is attached to a dust collection chamber that communicates with the suction side of the electric blower. And this dust bag for vacuum cleaners was formed in layers by a mouth frame that has an opening and is fixed to the dust collecting chamber, and a plurality of filter media that are provided in this mouth frame and formed of pulp, synthetic fibers, or the like. A dust bag main body (see, for example, Patent Document 1).
JP-A-2-116338 (page 2-4, FIGS. 1 and 3)

  When collecting fine dust with the vacuum cleaner dust bag, one of the filter media constituting the dust bag body is replaced with a single layer of nonwoven fabric. A charging process may be performed.

  However, in such a dust bag for an electric vacuum cleaner, fine dust adheres to the inner surface of the dust bag main body and the dust bag main body is clogged, and the filter function of the dust bag main body and suction by the electric blower Since the force is reduced, there is a problem that only the inner surface of the dust bag main body can collect dust even though the space for storing the collected dust is almost hollow.

  When the vacuum cleaner is stopped, the dust attached to the inner surface of the dust bag main body is peeled off, and when the vacuum cleaner is driven again, the peeled off dust rises and looks at the inner surface of the dust bag main body. The behavior of clogging is repeated.

  This invention is made | formed in view of such a point, and it aims at providing the dust collection bag for vacuum cleaners which can collect fine dust reliably and can ensure the amount of dust collection.

The present invention includes a dust bag main body that is formed into a bag shape by a filter medium and that can be deployed by driving an electric blower, a fine dust collector that is provided in the dust bag main body and formed into a nodule shape using fibers , A plurality of connecting bodies for connecting the surface of the fine dust collector to the inner surface of the dust bag main body so as to forcibly extend the fine dust collector with the development of the dust bag main body .

According to the present invention, in the dust bag main body formed in a bag shape by the filter medium, the fine dust collector formed in a nodule shape by the fiber is provided , and the surface of the fine dust collector is used for the development of the dust bag main body. In addition, by connecting to the inner surface of the dust bag main body with a plurality of connecting bodies so as to forcefully extend the fine dust collector, fine dust can be reliably collected by this fine dust collector , and the fine dust collector The fine dust collection capacity can be used effectively, and the fine dust can be prevented from clogging the dust bag main body , and the amount of dust collected can be secured.

  Hereinafter, the configuration of an embodiment of the present invention will be described with reference to FIGS.

  In FIG. 3, reference numeral 1 denotes a vacuum cleaner main body, which collects dust sucked together with intake air generated by driving an electric blower 2 accommodated therein. The vacuum cleaner body 1 further includes a lower case 1a whose upper part is open, an upper case 1b attached to the upper part of the lower case 1a, and a lid 1c that closes the upper part of the lower case 1a so that the upper part can be opened and closed. ing.

  The vacuum cleaner main body 1 has a main body suction port 3 for sucking air from the outside. An elongated substantially cylindrical hose body 4 that is flexible and can be bent is connected to the main body suction port 3. At the tip of the hose body 4, a hand operation unit 5 that can select an operation mode of the electric blower 2 is provided. The hand operation unit 5 is provided with a plurality of setting buttons 6 for setting the electric blower 2 and the like in the cleaner body 1 to a plurality of drive modes, and a gripping unit 7 that is held by an operator when cleaning. Projecting toward the base end side.

  Further, an elongated and substantially cylindrical extension tube 8 that can be extended and retracted is detachably connected to the distal end of the hand operation unit 5. Furthermore, a floor brush 9 serving as a suction port for sucking dust on the carpet is detachably connected to the tip of the extension pipe 8, for example, placed on a carpet on the floor of the room. ing.

  In the vacuum cleaner main body 1, a dust collection chamber 11 is provided that is a rectangular space that communicates with the downstream side of the main body suction port 3 and the suction side of the electric blower 2. The dust collection chamber 11 is located in front of the cleaner body 1 and the upper portion of the lower case 1a is opened to the outside of the cleaner body 1 by opening the upper portion of the lower case 1a with the lid 1c. A disposable dust collection pack 12 as a vacuum cleaner dust collection bag shown in FIGS. 1 and 2 is detachably attached to the dust collection chamber 11.

  The dust pack 12 includes a rectangular plate-shaped mouth frame 15, an outer bag paper 16 as a dust bag main body attached integrally to the mouth frame 15, and fine dust contained in the outer bag paper 16. It has a collector 17 and is formed in a bag shape. The dust collection pack 12 is attached to the dust collection chamber 11 in a flatly folded state as shown in FIG. 2, and when the air sucked by the drive of the electric blower 2 passes, the dust collection pack 12 is collected as shown in FIG. It swells in the dust chamber 11 and accommodates dust inside the outer bag 16.

  The mouth frame 15 is a fixed portion that is fixed in the dust collection chamber 11 when the dust collection pack 12 is attached to the dust collection chamber 11, and is formed of, for example, hard cardboard and has a circular shape in the center. An opening 21 is formed. The opening 21 communicates with the outer bag 16 and serves as a suction port for the dust collection pack 12. When the dust collection pack 12 is attached to the dust collection chamber 11, the suction side of the main body suction port 3 is provided. And a communication pipe (not shown) that projects into the dust collecting chamber 11 and is connected thereto. Although not shown, a valve body for preventing the backflow of dust may be attached to the opening 21.

  Further, the outer bag paper 16 is formed in a bag shape, for example, a sheet in which a plurality of filter media 16a formed in a rectangular shape in plan view with paper, non-woven fabric, or urethane fiber is overlapped. Further, the outer bag 16 is attached to the mouth frame 15 integrally with an adhesive. The outer bag paper 16 may be formed by stacking bag-like sheets respectively formed by the filter medium 16a.

  The fine dust collector 17 is formed into a nodule shape by a large number of fibers 17a, and a three-dimensional network structure is formed inside by the fibers 17a, and the outer bag is formed by a plurality of cord-band-like connecting bodies 22 It is connected to the inner surface of the paper 16. For this reason, as shown in FIG. 2, the fine dust collector 17 is compressed in a state in which the dust collection pack 12 is folded and accommodated in the outer bag paper 16, so that the dust collection pack 12 does not occupy a space. It has become.

  Further, as shown in FIG. 1, the fine dust collector 17 has such a size that a gap 23 is formed between the outer bag paper 16 and the inner surface of the outer bag paper 16 when the outer bag paper 16 is unfolded. The gap 23 is a space that accommodates dust such as cotton dust larger than fine dust sucked into the dust collection pack 12.

  The fiber 17a is a chemical fiber such as polyester, for example, and has been previously charged. These fibers 17a can be natural fibers. However, in view of the fact that the charging process is easier with chemical fibers, it is preferable to use the chemical fibers when performing the charging process.

  Further, the coupling bodies 22 are arranged substantially evenly around the fine dust collector 17. Further, these connecting bodies 22 are formed to be smaller than the distance between the surface of the fine dust collector 17 when the outer bag paper 16 is folded to the maximum and the inner surface when the outer bag paper 16 is unfolded. ing. As a result, the connecting body 22 forcibly extends the fine dust collector 17 forward and backward, left and right, up and down, etc. in accordance with the development of the outer bag paper 16, and the fine dust collector 17 The substantially center is positioned on the center line C of the opening 21, and the gap 23 is formed substantially evenly between the fine dust collector 17 and the outer bag paper 16, that is, the outer bag in the unfolded state. The fine dust collector 17 is positioned so that the fine dust collector 17 is positioned near the center of the paper 16.

  Next, the operation of the above embodiment will be described.

  First, the lid 1c of the vacuum cleaner main body 1 is opened to expose the dust collection chamber 11, and then the mouth frame 15 is fixed to a fixing portion (not shown) in the dust collection chamber 11 and the outer bag 16 of the dust collection pack 12. Is placed in the dust collection chamber 11, the lid 1c is closed, and a predetermined setting button 6 of the hand operation unit 5 is pressed to drive the electric blower 2 in a predetermined drive mode.

  At this time, in the dust collection pack 12, the outer bag paper 16 swells from the folded state shown in FIG. 2 to the unfolded state shown in FIG. 1 due to the sucked air sucked by the drive of the electric blower 2. Accordingly, the periphery is pulled by the connecting body 22, and the fine dust collector 17 is forcibly extended and expanded in a state of facing the opening 21.

  Further, the floor brush 9 is placed on the floor surface, and it travels back and forth on the floor surface to suck in dust on the floor surface together with air.

  The dust sucked together with the air from the floor brush 9 passes through the extension pipe 8, the hose body 4 and the main body suction port 3 in order and is sucked into the dust collection pack 12 from the opening 21.

  The relatively large dust is accommodated in the gap 23 of the dust collection pack 12, and the fine dust is a fiber of the fine dust collector 17 when the air flowing from the opening 21 passes through the fine dust collector 17. It is sucked into 17a, entangled, collected and held.

  Thereafter, after the dust is collected, the air passes through the outer bag 16 and is then sucked into the suction side of the electric blower 2 and is exhausted from the exhaust port (not shown) to the outside of the cleaner body 1.

  When a predetermined amount of dust accumulates in the dust collection pack 12, the lid 1c is opened, the dust collection pack 12 is removed from the dust collection chamber 11 and discarded together with the dust, and a new dust collection pack 12 is removed. The lid 1c is closed and the electric vacuum cleaner is used again.

  As described above, according to the above-described embodiment, the electric blower 2 is provided by providing the fine dust collector 17 formed into a nodule shape with the fibers 17a in the outer bag paper 16 formed into a bag shape with the filter medium 16a. Among the dust sucked together with the air by the driving, fine dust can be surely collected by the fine dust collector 17, and dust larger than the fine dust can be stored in the gap 23 in the outer bag paper 16 and collected.

  Further, since most of the fine dust is collected in the fine dust collector 17, it is possible to suppress the outer bag paper 16 from being clogged by the fine dust and reducing the suction force of the electric blower 2, so the dust collection pack 12 The dust storage space can be used effectively, and the amount of dust can be secured.

  Moreover, since the fine dust collector 17 has the three-dimensional network structure of the fibers 17a, the collected fine dust is retained in the fine dust collector 17 even when the driving of the vacuum cleaner is stopped. When the vacuum cleaner is restarted, the fine dust once collected does not come off the fine dust collector 17 and clog the outer bag paper 16. You can use up the dust.

  Furthermore, by forming the fine dust collector 17 into a nodule shape with the fibers 17a, the dust collection pack 12 can be folded into a flat state before the dust collection pack 12 is used. There is no more space than necessary for 12 distribution and storage.

  Since the fine dust is attracted to the fibers 17a by performing the charging process on the fibers 17a of the fine dust collector 17, the fine dust can be more reliably collected and held by the fine dust collector 17.

  Further, by connecting the fine dust collector 17 to the inner surface of the outer bag paper 16 by the connecting body 22, when the outer bag paper 16 is unfolded from the folded state, the fine dust collector 17 is moved by the connecting body 22 along with this development. Since it is forcibly expanded and expanded, the fine dust collection capacity of the fine dust collector 17 can be used effectively, and the downstream air bag 16 on the downstream side, that is, the rear side of the outer bag paper 16 is sucked by the suction air sucked into the dust collection pack 12. It is also possible to prevent the outer bag 16 from being clogged by pressing the fine dust collector 17 on the inner surface.

  Furthermore, by positioning the fine dust collector 17 so as to face the opening 21, the suction air containing fine dust sucked from the opening 21 can be reliably passed through the fine dust collector 17, and the fine dust collector 17 can be passed through. Fine dust can be collected more reliably by the collecting body 17.

  The size of the fine dust collector 17 is made smaller than the size of the inside of the unfolded outer bag paper 16, and a gap 23 is formed around the fine dust collector 17, thereby making the dust larger than the fine dust. Can be accommodated in the gap 23, and the amount of dust collected can be secured.

  In the above-described embodiment, particularly when only fine dust is collected, the maximum size of the fine dust collector 17 may be approximately equal to the size of the inside of the unfolded outer bag paper 16. Good.

  The vacuum cleaner is not limited to a canister type vacuum cleaner, but is an upright type in which the floor brush 9 is directly formed on the lower surface of the vacuum cleaner body 1. In addition, the vacuum cleaner body 1 and the floor brush 9 are integrated. Even a self-propelled electric vacuum cleaner or a handy type can be used correspondingly.

It is side surface sectional drawing which shows the expansion | deployment state of the dust bag for vacuum cleaners of one embodiment of this invention. It is side surface sectional drawing which shows the folding state of the dust collecting bag for vacuum cleaners same as the above. It is a perspective view which shows the vacuum cleaner provided with the dust collecting bag for vacuum cleaners same as the above.

Explanation of symbols

2 Electric blower
12 Dust collection pack as a dust bag for vacuum cleaner
16 Outer bag paper as dust bag body
16a Filter media
17 Fine dust collector
17a textiles
22 Connected body

Claims (3)

A dust bag for a vacuum cleaner that collects dust sucked in by driving an electric blower,
A dust bag main body that is formed into a bag shape by a filter medium and can be developed by driving the electric blower ;
A fine dust collector provided in the dust bag main body and formed into a nodule with fibers ,
A plurality of connecting bodies for connecting the surface of the fine dust collector to the inner surface of the dust bag main body so as to forcibly extend the fine dust collector with the development of the dust bag main body. Dust collection bag for vacuum cleaner. The connecting body forcibly extends the fine dust collector so as to be positioned in the vicinity of the center of the dust bag main body in the expanded state as the dust bag main body is deployed.
The dust collecting bag for an electric vacuum cleaner according to claim 1, wherein: The dust bag for an electric vacuum cleaner according to claim 1 or 2 , wherein the fine dust collector is subjected to a charging process .

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