JP2008168021A - Vacuum cleaner dust bag - Google Patents

Abstract

An object of the present invention is to maintain airtightness of a dust bag at an insertion port of a connecting pipe and to prevent dust from leaking outside from the insertion port in a vacuum cleaner.
SOLUTION: A bag-like portion 3 having air permeability and partially provided with an opening 5, a support frame 7 bonded to an opening 8 of the bag-like portion 3 with an insertion port aligned, and the support The outer peripheral portion 12 is bonded to the support frame 7 so that the insertion port 8 of the frame 7 is closed at the central portion 11, and a pair of substantially circular through holes 15 are provided at the central portion 11. It is the dust collection bag 2 of the vacuum cleaner 1 provided with the seal member 10 which can be expanded and contracted which formed the slit 16 which connects between.
[Selection] Figure 1

Description

  The present invention relates to a dust collection bag of an electric vacuum cleaner that is used in a vacuum cleaner and filters the air sucked in by mixing dust and accommodates the dust.

  As shown in Patent Document 1, for example, a conventional dust collection bag of an electric vacuum cleaner has a dust collection bag in the center around the opening of a dust collection chamber bag housed in a dust collection chamber. A cardboard support plate provided with holes is bonded. A seal valve having an insertion portion such as a vacuum cleaner hose opened in a circular shape is bonded to the surface of the support plate via two gaskets.

  This seal valve is made of a rubber sheet or other material that is flexible, and has an outer diameter larger than the dust collection hole of the support plate and an inner diameter that is sufficiently smaller than the outer diameter of the vacuum cleaner hose base end. Has been. Thus, when the base end of the vacuum cleaner hose is inserted into the seal valve insertion portion of the dust collecting bag attached to the vacuum cleaner at the start of the cleaning operation, the seal valve becomes the outer peripheral portion of the hose base end. To seal.

  In this Patent Document 1, as another embodiment different from the above-described hose insertion portion, a large number of slits are radially formed with an outer diameter equal to the dust collection hole of the support plate, and these slits are inserted into the hose base end portion. There is a dust bag with a seal valve as a part. (See Patent Document 1)

  In addition, as a dust bag of another conventional vacuum cleaner, for example, as shown in Technical Document 2, in a fixed area that is a support plate provided at an opening of a dust bag that becomes a dust bag of a vacuum cleaner, A structure is shown in which an airtight film having two orthogonal slits is provided, and the airtightness of the inserted hose base end is ensured by the slit serving as the insertion portion. (See Patent Document 2)

  In the dust collection bag of the electric vacuum cleaner of Patent Document 1, in the former case, when the base end of the suction hose is pulled out from the seal valve, and when the dust collection bag is taken out from the vacuum cleaner body and discarded together with dust In many cases, dust is discharged from the circular hose insertion portion together with air, and often falls outside, which is unsanitary. In the latter case, it is difficult to maintain airtightness without a ring-shaped gasket when the suction hose is inserted into the seal valve, and when the suction hose is pulled out of the seal valve, there are a large number of radial slits. Therefore, the restoring force is weak, and dust may be discharged from the insertion portion or may fall.

In the dust bag of the electric vacuum cleaner of the said patent document 2, the notch | incision of a notch slit becomes long outward by repeating insertion of a suction hose in the insertion part which consists of an orthogonal notch slit provided in the airtight film | membrane. If the suction hose is pulled out from the insertion section, the slit may remain open and dust may be discharged or dropped outside. A closure flap, which is a lid, was required.
Japanese Utility Model Publication No. 6-25249 (page 3, FIGS. 1 and 4) JP-T 9-505750 (page 8, FIG. 1)

  These conventional vacuum cleaners cannot maintain airtightness at the opening of the dust bag where the connection pipe at the end of the suction hose is inserted, or when the connection pipe is pulled out, the dust contained in the dust bag is There was a case of leakage from the insertion port.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a dust collection bag for a vacuum cleaner that maintains airtightness in an insertion portion of a connecting pipe and does not allow dust to leak outside.

  The present invention provides a bag-like portion having air permeability and partially provided with an opening, a support frame bonded to the opening of the bag-like portion with an insertion port aligned, and the insertion of the support frame The outer peripheral part was bonded to the support frame so as to close the mouth at the center part, and a pair of substantially circular through holes were provided at the central part, and a slit was formed to cut between the through holes. A dust collection bag for an electric vacuum cleaner provided with an expandable / contractible seal member.

  The present invention can provide a dust collection bag for a vacuum cleaner that maintains airtightness at the insertion port of the connecting pipe and that does not allow dust to leak outside through the opening.

  Hereinafter, embodiments of the dust bag of the vacuum cleaner according to the present invention will be described with reference to FIGS. 1 to 8.

  FIG. 1 shows a dust collection bag 2 of a vacuum cleaner 1 according to one embodiment of the present invention, and this dust collection bag 2 is detachably attached to the inside of the vacuum cleaner 1 as shown in FIG. It is done. The dust bag 2 before being attached to the vacuum cleaner 1 shown in FIG. 1 is provided with a hollow bag-shaped portion 3 made of a paper material having air permeability in a three-layer structure, in order to reduce the storage space before use. The hollow part 4 of the bag-like part 3 is pressed and folded at four points. A circular opening 5 is provided at the center of the bag-like portion 3 and is continuous with the hollow portion 4.

  A support frame 7 for attaching the dust bag 2 to the vacuum cleaner 1 is provided at the opening 5 of the bag-like portion 3. As shown in FIGS. 2 and 3 in which the bag-like portion 3 is omitted, the support frame 7 is obtained by cutting a hard cardboard into a quadrangular shape, and the center of the support frame 7 is the opening 5 of the bag-like portion 3. A circular insertion port 8 having a substantially equal diameter is provided for polymerization. The support frame 7 is formed by cutting off the corners of the quadrangle and eliminating the sharp corners. The support frame 7 can be replaced with a plastic material.

  Further, a circular seal member 10 is formed between the insertion opening 8 of the support frame 7 and the opening 5 of the bag-like portion 3 and is made of a natural rubber as a material with a remarkable degree of expansion and contraction. That is, the seal member 10 covers the opening 5 of the bag-like portion 3 with one surface of the central portion 11 and covers the insertion port 8 of the support frame 7 with the other surface, Both surfaces are bonded to the peripheral portions 13 of the opening 5 and the insertion port 8 with an adhesive. These bonding orders are performed by first bonding the seal member 10 to the support frame 7 and then bonding the support frame 7 and the seal member 10 to the bag-like portion 3.

  Further, in the central portion 11 of the seal member 10 shown in FIG. 2, a pair of through-holes 15 that are spaced apart from each other in the horizontal direction at a predetermined interval and have a small circular shape, and the through-holes 15 are connected. A horizontal slit 16 is provided. The arrangement of the through-holes 15 in the seal member 10 is provided symmetrically at the position of a half of the radius in the circular insertion port 8 of the support frame 7. Therefore, the separation distance of these through holes 15 is substantially equal to the radius of the insertion port 8. Further, the diameters of these through holes 15 are each about 1/10 of the diameter of the insertion port 8.

  Next, a state where the dust bag 2 is attached to the vacuum cleaner 1 will be described with reference to FIG. The vacuum cleaner 1 has a front wheel 22 in the center of the front lower part of the vacuum cleaner main body 20, a front wheel 22 whose support arm is rotatable in the left-right direction around the rotation shaft 21, and a large outer diameter on both sides of the rear lower part. A pair of rear wheels 23 are attached for movement. An electric blower 25 is built in the rear portion of the cleaner body 20, and the electric blower 25 has a suction force capable of sucking air mixed with dust from the floor surface or the like.

  In front of the electric blower 25, a dust bag storage chamber 30 partitioned by a partition plate 27 that supports the second filter device 26 is provided. The dust bag storage chamber 30 is provided with a pair of guide rails (not shown) each having a U-shaped groove opening in a cross-section so that the opening of the groove faces each other and parallel to the vertical direction. The support frame 7 of the dust bag 2 is removably inserted into the grooves on both sides of these guide rails from above, and is moved downward and to the front end side of the cleaner main body 20 by a rotating stopper 31 biased by a spring. Pressed and held.

  Moreover, the connection pipe 34 which has the connection port 33 is provided in the front-end | tip of the cleaner body 20, and the connection pipe 35 in the end of the suction hose which is not shown in figure is inserted so that attachment or detachment is possible. At this time, the distal end of the connection pipe 35 protrudes into the dust bag housing chamber 30 and is inserted into the hollow portion 4 of the bag-like portion 3 from the insertion port 8 provided in the support frame 7 of the dust bag 2. As shown in FIG. 2, the outer diameter of the connecting pipe 35 is larger than the interval A between the extreme ends of the pair of through holes 15 before the connecting pipe 35 is inserted.

  A state in which the connecting pipe 35 is inserted into the bag-shaped portion 3 through the insertion port 8 of the support frame 7 will be described with reference to FIG. 5 in which the bag-shaped portion 3 is omitted. When the connecting pipe 35 of the suction hose is inserted into the connecting port 33 of the connecting pipe 34 and pushed in, it reaches the inserting port 8 of the support frame 7. When pushed further in, the tip of the connection pipe 35 pushes the pair of through holes 15 and slits 16 of the seal member 10 that closes the insertion port 8 and protrudes into the bag-like portion 3.

  At this time, since the vicinity of the slit 16 and the through hole 15 of the seal member 10 is expanded, the outer peripheral surface of the connection pipe 35 is stuck and remarkably tensioned, so that the outer periphery of the connection pipe 35 is maintained in an airtight state. Reference numeral 17 denotes a wrinkle formed by bending a part of the seal member 10 by inserting the connecting pipe 35.

  At this time, the slit 16 and the through hole 15 of the sheet member 10 are expanded. However, since the through holes 15 at both ends of the slit 16 are circular, the arc forming the through hole 15 extends in a linear direction. In addition, it is possible to expand in a state of being pressed along the outer periphery of the connection pipe 35 without causing a crack by dispersing the tension.

  When the electric blower 25 is driven in this state and the cleaning operation is started, the dust sucked by the suction port body from the floor surface passes through the suction hose and passes through the connection pipe 35 to form the bag-like portion 3 of the dust bag 2. Flow into. The dust is filtered by the air-permeable bag-like portion 3 and stored in the hollow portion 4, and the air passing through the bag-like portion 3 passes through the electric blower 25 and is discharged to the outside from the cleaner body 20. .

  Further, after the cleaning work is finished, the drive of the electric blower is stopped, and the connection pipe 35 is pulled out from the connection port 33 of the cleaner body 20 together with the suction hose, so that the periphery of the through hole 15 and the slit 16 is reduced. 1-3, the seal member 10 as shown in FIGS. 1 to 3 is almost restored to the original state, and the insertion port 8 is closed. For this reason, even when the connecting pipe 35 is pulled out, it is possible to prevent the dust contained in the bag-like portion 3 of the dust bag 2 from being discharged from the insertion port 8 or falling.

  Next, another embodiment of the dust collection bag 2 of the present invention will be described with reference to FIGS. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals. The support frame 7 has a circular first seal member 10 having a pair of through-holes 15 arranged in the horizontal direction and slits 16 connecting the through-holes 15 in the same manner as in the above embodiment. It is glued. Further, the support frame 7 has a second seal member 43 having a through hole 40 and a slit 42 having exactly the same shape as the first seal member 10, and the through hole 15 and the slit 16 of the first seal member 10 are 90. It is polymerized by being displaced by an angle of degrees.

  The outer peripheral portion 45 of the second seal member 43 is superposed on the outer peripheral portion 12 of the first seal member 10 and bonded with an adhesive. As a result, the second seal member 43 is indirectly bonded to the support frame 7 via the first seal member 10. The slit 16 and the slit 42 are crossed in a cross shape. The dust collecting bag 2 can be completed by adhering such a support frame 7 to the opening 5 of the bag-like portion 3 with an adhesive.

  In this case, the outer peripheral portion 45 of the second seal member 43 is bonded to the outer peripheral portion 12 of the first seal member 10, but the outer diameter of the outer peripheral portion 45 is increased so that the outer peripheral portion 45 is directly bonded only to the support frame 7 or supported. Adhering to both the frame 7 and the outer peripheral portion 12 of the first seal member 10 can enhance the airtight performance.

  The state where the connection pipe 35 of the suction hose is inserted into the insertion port 8 of the support frame 7 where the first seal member 10 and the second seal member 43 are superposed and bonded together will be described with reference to FIG. The pair of through holes 15 provided in the first seal member 10 is greatly expanded when the connection pipe 35 is inserted into the insertion port 8, so that the periphery of the through hole 15 is a support frame as compared with other portions. The area protruding from 7 to the side and contacting the connecting pipe 35 is small. Therefore, the airtightness of this part may be impaired.

  Therefore, the second seal member 43 is provided in order to provide a margin for the airtightness around the through hole 15. That is, the second seal member 43 is displaced at an angle of 90 degrees with respect to the first seal member 10 and adhered to the support frame 7, so that the through-hole 15 of the first seal member 10 is provided to the connection pipe 35. On the other hand, the portion where the through-hole 40 of the second seal member 43 does not exist and the contact area is wide is positioned in the portion where the contact area is small. By overlapping the surfaces, the airtightness of the entire circumference can be further enhanced.

  In any of the above-described embodiments, the sealing member has a flat plate shape. However, the present invention is not limited to this, and for example, the outer peripheral portion of the sealing member has a flange-like peripheral portion that adheres to the support frame, and the central portion. Can be U-shaped having a pair of through holes and slits.

  Moreover, the said Example adhere | attaches the outer peripheral part of a sealing member and the peripheral part of the opening part which has a bag-shaped part on the same surface of a support frame, and inserts a connecting pipe from the direction on the opposite side to these adhesion | attachment sides. However, unlike this, the outer peripheral part of the sealing member and the peripheral part of the opening of the bag-like part are bonded so as to be opposite to the support frame, respectively, and the outer peripheral part of the sealing member is bonded It can be set as the structure which inserts a connection pipe | tube toward the inside of the bag-like part adhere | attached on the opposite side from this direction.

  In the above-described embodiment having two sealing members, the first sealing member is bonded to one side of the front and back surfaces of the support frame, and the second sheet member is bonded to the other surface. Polymerization can also be performed during thickness separation of the support frame. In this case, the two slits provided in each seal member are separated and crossed in a cross shape.

  Further, three seal members each having a small circular through-hole at each end are provided at the center, and the three slits are stacked so that each of the three slits is displaced at an angle of 60 degrees. Can be bonded to the support frame. Thereby, the airtightness of a connection pipe and a sealing member and the fall prevention of dust can be improved further.

  The shape of the through hole provided in the seal member is not limited to a perfect circle, and may be a distorted circle such as an ellipse or a saddle shape. That is, it is only necessary that the through hole is formed by a curve that is not easily cracked by the expansion of the slit.

  As described above, the present invention is not limited to the above embodiment, and can be modified without departing from the spirit of the present invention.

It is a perspective view of the dust bag of the vacuum cleaner by this invention. (Example 1) It is a front view of the support frame and seal member of a dust bag shown in FIG. FIG. 3 is a side sectional view of a support frame and a seal member shown in FIG. 2. It is a partial cross section figure in the state which attached the dust bag shown in FIG. 1 to the vacuum cleaner. It is a perspective view showing the state which inserted the connecting pipe into the support frame and seal member shown in FIG. It is a front view of the support frame and seal member of the dust bag of the other vacuum cleaner by this invention. (Example 2) FIG. 7 is a side sectional view of the support frame and the seal member shown in FIG. 6. It is a perspective view showing the state which inserted the connecting pipe into the support frame and seal member shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Dust collection bag 3 Bag-shaped part 5 Opening part 7 Support frame 8 Insertion port 10 Sealing member 11 Center part 12 Outer part 15 Through-hole 16 Slit 35 Connecting pipe

Claims (3)

  A bag-like part having air permeability and a part of which is provided with an opening, a support frame in which the insertion port is aligned with and bonded to the opening of the bag-like part, and the insertion port of the support frame at the central part The outer peripheral portion is bonded to the support frame so as to be closed at the center, and a pair of substantially circular through-holes is provided at the central portion, and a stretchable seal in which slits are formed to connect the through-holes is formed. A dust collection bag for an electric vacuum cleaner comprising a member.   A bag-like part having air permeability and a part of which is provided with an opening, a support frame in which the insertion port is aligned with and bonded to the opening of the bag-like part, and the insertion port of the support frame at the central part A first seal member that can be expanded and contracted, and is provided with a first slit having a substantially circular through-hole at both ends, the outer peripheral portion being bonded to the support frame so as to be closed at the center. A second slit member having circular through holes at both ends so as to be substantially orthogonal to the first slit of the member is superposed, and an expandable second seal member having an outer peripheral part directly or indirectly bonded to the support frame. A vacuum cleaner dust bag characterized by being provided. The distance between the outermost ends of the through-holes at both ends of the slit is smaller than the outer diameter of the connection pipe inserted into the insertion port of the support frame. Dust collection bag for electric vacuum cleaner.

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