JP2008245976A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a dust from leaking outside when taking out a dust collection bag from a vacuum cleaner and discarding the dust. <P>SOLUTION: By covering an insertion port 36 by adhering the outer peripheral part of a stretchable sheet body 35 provided with a slit 38 on the peripheral part to the surroundings of the insertion port 36 having a support frame body 34 in the dust collection bag 31 and inserting a hose connection pipe 7 provided at the end of a sucking hose 6 into the insertion port 36 of the support frame body 34, a sucking opening 41 is formed by stretching the slit 38 by pressing the sheet body 35. By pulling out the hose connection pipe 7 from the insertion port 36 of the support frame body 34, the sucking opening 41 is returned to the slit 38 so as to cover the insertion port 36 so that the dust is prevented from leaking outside when taking out the dust collection bag 31 and discarding the dust. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner to which a dust collection bag for filtering and collecting dust sucked by an electric blower is detachably attached.

  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. A dust collection bag provided with a seal valve as a part is shown. (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, There is shown a structure 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 collecting bag of the electric vacuum cleaner of the above-mentioned Patent Document 2, by repeatedly inserting the suction hose into the insertion portion composed of the orthogonal slits provided in the airtight membrane, both ends of the slits are torn apart outward. Opening and closing the lid is difficult because it is difficult to maintain airtightness due to expansion, and when the suction hose is pulled out from the insertion section, the slit may remain open and dust may be discharged or dropped. A closing flap was needed.
Japanese Utility Model Publication No. 6-25249 (page 3, FIGS. 1 and 4) JP-T 9-505750 (page 8, FIG. 1)

  In these conventional vacuum cleaners, dust collected in the dust collection bag is externally removed from the insertion port when the connection pipe communicating with the suction hose is pulled out unless a closing flap is provided at the insertion port of the dust collection bag. There was a leak.

  The present invention has been made for the above circumstances, and is a vacuum cleaner in which dust is not leaked outside from the dust collection bag when the connection tube is pulled out and the dust collection bag is taken out from the cleaner body and discarded. The purpose is to provide.

  The present invention includes an electric blower built in the vacuum cleaner body, a dust collection chamber provided on the suction side of the electric blower, and is detachably accommodated in the dust collection chamber, and can filter and collect the sucked dust. A support frame body that has a bag-shaped portion and is bonded to the opening of the bag-shaped portion so that the insertion port is aligned with the outer periphery of the support frame body to cover the insertion port and to the peripheral portion. It is connected to a dust collection bag provided with an elastic seal body having a slit and a hose connection port provided in communication with the dust collection chamber, and presses the central part of the seal body inward of the bag-like part. A suction opening is formed by extending the slit, and a hose connection pipe provided with a discharge port on an end side surface, and a lock capable of holding the hose connection pipe in the hose connection port with the suction opening formed Mechanism and dust connected to the hose connection pipe from the floor. And characterized in that a vacuum cleaner provided with a communicating connected to the suction hose directly or indirectly to the suction port body to pull.

  ADVANTAGE OF THE INVENTION This invention can provide the vacuum cleaner which dust does not leak outside from a dust collection bag, when discarding dust.

  Hereinafter, embodiments of the electric vacuum cleaner according to the present invention will be described with reference to FIGS. 1 to 9.

  FIG. 1 shows a vacuum cleaner 1 according to one embodiment of the present invention, and a pair of rear wheels 3 for movement are attached to a vacuum cleaner body 2 of the vacuum cleaner 1 on both sides of the rear thereof. ing. In addition, a lid 4 that can be opened and closed is provided at the front of the cleaner body 2, and a hose connection port 5 is provided at the front end. A hose connection pipe 7 provided at one end of the suction hose 6 having flexibility is inserted into the hose connection port 5 so as to be detachable.

  An operation handle 11 having a plurality of operation buttons 10 is integrally attached to the other end of the suction hose 6. Further, the operation handle 11 is detachably provided with an extension tube 13 having a suction port body 12 attached to the tip.

  Next, the inside of the cleaner body 2 will be described with reference to FIG. 2. The electric blower 15 is built in above the middle part of the pair of rear wheels 3. The electric blower 15 is provided with a suction force capable of sucking air containing dust from the floor surface or the like by rotating the fan 17 by the electric unit 16.

  A protective frame 21 supported by a partition 20 is provided in front of the electric blower 15, and this protective frame 21 has a large number of ribs 22 and bars 23, which pass fine dust mixed by passing an air flow. A thick urethane foam 24 to be captured in a complementary manner is held. Further, a front wheel 28 is attached to the front lower center of the cleaner body 2 so that the support arm 27 is rotatable in the left-right direction around the rotation shaft 26.

  Further, a dust collection bag 31 as shown in FIGS. 2, 3, and 4 is accommodated in the dust collection chamber 30 in front of the protective frame 21. This dust collection bag 31 has a filtration function and a breathable bag-like portion 32 in which dust can be accumulated, and a support frame 34 to which an opening 33 of the bag-like portion 32 is bonded. The support frame body 34 is composed of a circular seal body 35 having an outer peripheral portion bonded thereto.

  The support frame 34 is made of thick paper having a substantially quadrangular outer shape, and a circular insertion port 36 is provided in the center thereof, and the opening 33 of the bag-like portion 32 is bonded to the periphery thereof. . The seal body 35 is made of natural rubber having a thickness of about 0.3 to 0.5 mm and extremely stretchable, and the outer peripheral portion 37 is bonded to the opening 33 of the bag-like portion 32. It is bonded to a position inside the support frame body 34, and the center portion covers the insertion slot 36 of the support frame body 34.

  FIG. 5 shows a support frame body 34 in the dust bag 31 before being attached to the cleaner body 2 and a flat seal body 35 adhered to the support frame body 34. The flat plate-like elastic seal body 35 has an outer peripheral portion 37 bonded to the support frame body 34 and covers the insertion port 36 in a closed state. In addition, a pair of left and right slits 38 that are substantially parallel to the arc that forms the insertion port 36 and that are symmetrical with respect to the center point of the arc are cut in the periphery of the seal body 35.

  Further, in the cleaner main body 2 where the support frame 34 shown in FIG. 2 is located, a pair of guide rails (not shown) having a U-shaped groove opening in the vertical direction with the opening of the groove facing each other. Are provided in parallel. The support frame 34 included in the dust bag 31 is inserted in the groove portions on both sides of these guide rails so as to be detachable from above, and is moved downwardly and by a rotating stopper 39 biased by a spring. 2 is pressed and held on the tip side. The attachment and removal of the dust bag 31 can be performed by opening and closing the lid 4 provided on the cleaner body 2.

  Further, as described above, the hose connection pipe 7 is inserted into the hose connection port 5 provided at the front end of the cleaner body 2, and the front end portion of the hose connection pipe 7 is inserted into the insertion port 36 of the support frame 34. To the inside of the bag-like portion 32 of the dust collection bag 31. At this time, the central portion of the seal body 35 is pressed and stretched inside the bag-like portion 32 in a state in which it is in close contact with the front end tube port 40 of the hose connection tube 7 and is closed. In a state where the seal body 35 is stretched, as shown in FIGS. 3 and 4, the two slits 38 are also stretched in the insertion direction of the hose connection pipe 7 to form a pair of suction openings 41 on the left and right. ing.

  In the state where the seal body 35 is stretched in this way, it acts in a direction in which the hose connection pipe 7 is pushed out from the hose connection port 5 by the repulsive force of the seal body 35, but is fixed by the lock mechanism 45 provided in the hose connection port 5 Has been. The lock mechanism 45 is fixed by engaging a claw 48 of a stop lever 47 pressed upward by a spring 46 with an engagement hole 49 provided at an upper portion of the hose connection port 5.

  A rectangular discharge port 50 is provided on the side surface of the end portion of the hose connection pipe 7 as a pair on the side surface in the horizontal direction. The left and right discharge ports 50 are close to a suction opening 41 formed by extending slits 38 provided on the left and right sides of the seal body 35.

  Next, the case where a cleaning operation is performed by the electric vacuum cleaner 1 will be described. The electric blower 15 is driven by turning on a power switch (not shown) on the operation button 10 of the cleaner body 2 or the operation handle 11. The air and dust sucked by the suction port body 12 from the surface to be cleaned such as the floor surface by the suction force by the electric blower 15 pass through the extension pipe 13 and the suction hose 6 and reach the tip of the hose connection pipe 7. .

  Since the front end port 40 of the hose connection pipe 7 is closed at the center of the seal body 35, the airflow mixed with dust flows out from the left and right discharge ports 50 and a pair of suction openings 41 of the seal body 35. Flows into the bag-like portion 32 of the dust collection bag 31. Thereafter, since the bag-like portion 32 has a filtering action, the air flows out into the dust collecting chamber 30 in the outer peripheral portion of the bag-like portion 32, and the dust is filtered and accumulated inside. The air that has flowed out of the bag-like portion 32 passes through the urethane foam 24 held by the protective frame 21 and is discharged to the outside of the cleaner body 2 through the inside of the electric blower 15.

  Next, a case where dust is fully accumulated in the bag-like portion 32 of the dust bag 31 and the electric blower 15 is stopped and the dust bag 31 is discarded will be described. First, after turning off the power switch and stopping the electric blower 15, the stop lever 47 of the lock mechanism 45 is pushed down to disengage the claw 48 from the engagement hole 49, and the hose connection port 5 of the cleaner body 2. Pull out the hose connection pipe 7 from

  As a result, the sealing body 35 is reduced from the stretched state, whereby the suction opening 41 returns to the original slit 38 and becomes a flat plate shape that closes the insertion port 36 of the support frame body 34. As a result, the sheet body 35 returns to the state shown in FIG. 5 and the dust accumulated in the bag-like portion 32 is prevented from leaking outward from the insertion port 36. Next, if the lid 4 that can be opened and closed of the cleaner body 2 is opened upward and the stopper 39 is rotated, the dust bag 31 can be taken out of the cleaner body 2 and discarded.

  Next, another embodiment will be described with reference to FIGS. 6 to 8 in which the bag-like portion 3 of the dust bag 31 is omitted. FIG. 6 shows a tube port closing body 55 inserted into the tip tube port 40 of the hose connection tube 7. The tube port closing body 55 has a substantially cylindrical shape as a whole, and has a rectifying portion 57 having a substantially trapezoidal cross section on the upper surface and having first rectifying surfaces 56 on both sides. Further, at the center of both sides of the rectifying unit 57, there are second rectifying surfaces 58 each having a constant width in the horizontal direction so as to be continuous with the first rectifying surface 56.

  Further, an annular rubber packing 60 wound around the outer periphery of the tube opening closing body 55 is attached at the end of the second rectifying surface 58. Further, a stop collar 61 having a larger outer periphery is provided at a predetermined interval from the rubber packing 60. Further, a sheet body pressing portion 62 is provided below the stop collar 61.

  Next, referring to FIGS. 7 and 8, a state in which the tube closing body 55 is inserted into the distal end tube port 40 of the hose connection tube 7 and the hose connection tube 7 is attached to the cleaner body 2 will be described. The tube port closing body 55 is inserted until the stop collar 61 comes into close contact with the tip tube port 40 of the hose connection tube 7, and the outer periphery of the rubber packing 60 is fitted to the inner wall of the hose connection tube 7. Further, the end portion of the rectifying surface 58 coincides with the left and right discharge ports 50 provided on the side surface of the end portion of the hose connection pipe 7.

  Then, the hose connection pipe 7 inserted from the insertion port 36 of the support frame 34 to the inside of the bag-like part 32 of the dust collection bag 31 pushes down the sheet body 35 by the sheet body pressing part 62 of the tube port closing body 55. In addition to stretching, the slit 38 is stretched to form the suction opening 41.

  By attaching this tube port closing body 55 to the hose connection tube 7 and connecting it to the hose connection port 5 of the cleaner body 2, the air flow that has reached the tip of the hose connection tube 7 after starting the cleaning operation is The flow is divided into two by a rectifying surface 56 and a rectifying surface 58 provided on both sides of the rectifying unit 57 at the upper part of the mouth closing body 55, and is smoothly guided, collected from the suction opening 41 of the sheet body 35 through the discharge port 50. It flows into the bag-like portion 32 of the dust bag 31.

  Then, the dust is filled in the bag-like portion 32 by this cleaning operation, and the operation of taking out the dust collection bag 31 from the cleaner body 2 can be performed in the same manner as described above. At this time, since the rubber packing 60 is provided, the tube port closing body 55 does not fall from the distal end tube port 40 of the hose connection tube 7.

  6 and 7, the lower end surface of the sheet body pressing portion 62 is substantially flat. However, the lower end surface may be an arc or a spherical surface in order to press down the sheet body 35 and uniformly extend the sheet body 35.

  FIG. 9 shows another shape of the discharge port 50 provided in the hose connection pipe 7, and one or a plurality of discharge ports 50 can be formed by notching the distal end tube port 40.

  The present invention incorporates the electric blower and the dust collection chamber in the vacuum cleaner body, which is a single container, in the above embodiment. However, the electric blower and the dust collection chamber for storing the dust collection bag are respectively separate containers. It can also be applied to a vacuum cleaner that is built in and connected to these containers by a hose or the like.

  Further, the bonding of the bag-like portion and the sealing body to the support frame is not limited to bonding with a chemical adhesive, but may be bonding by sewing using a thread.

  Furthermore, the shape of the slit provided in the seal body is not limited to the arc shape, and may be linear. That is, it is only necessary that the suction opening of the sheet member returns to the original slit state when the hose connection pipe is pulled out from the insertion port of the support frame.

  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 vacuum cleaner by this invention. Example 1 It is a partial cross section figure of the vacuum cleaner main body in the vacuum cleaner shown in FIG. It is a perspective view of a dust bag and a hose connection pipe of the vacuum cleaner shown in FIG. It is sectional drawing of a dust collection bag and a hose connection pipe | tube shown in FIG. It is a front view before use of the support frame body and seal body of the vacuum cleaner shown in FIG. It is a perspective view of a pipe mouth obstruction in another vacuum cleaner by the present invention. (Example 2) It is a partial cross section figure of the state which attached the pipe opening obstruction body shown in Drawing 6 to a hose connection pipe, and inserted into a dust bag. It is a perspective view of the state which attached the pipe opening obstruction body shown in FIG. 7 to the hose connection pipe. It is a perspective view of the state which attached the pipe opening obstruction body in the other vacuum cleaner by this invention to the hose connection pipe.

Explanation of symbols

1 vacuum cleaner
2 Vacuum cleaner body
5 Hose connection port
6 Suction hose
7 Hose connection pipe
12 Suction port
15 Electric blower
30 Dust collection chamber
31 Dust collection bag
32 Bag-shaped part
33 opening
34 Support frame
35 Seal body
36 insertion slot
38 slits
41 Suction opening
45 Locking mechanism
50 Discharge port
55 Tube closure
57 Rectifier
62 Sheet body pressing part

Claims (4)

  An electric blower built in the vacuum cleaner body, a dust collection chamber provided on the suction side of the electric blower, and a bag-like portion that is detachably accommodated in the dust collection chamber and that can filter and collect the sucked dust A support frame that is bonded to the opening of the bag-shaped portion so that the insertion port is aligned, and an outer peripheral portion is bonded to the support frame to cover the insertion port and has a slit in the peripheral portion. It is connected to a dust collection bag provided with a free seal body and a hose connection port provided in communication with the dust collection chamber, and the center of the seal body is pressed inward of the bag-like portion to pull the slit. A suction opening is formed by stretching, a hose connection pipe provided with a discharge port on an end side surface, a lock mechanism capable of holding the hose connection pipe in the hose connection opening in a state where the suction opening is formed, Suction connected to the hose connection pipe to suck dust from the floor. Vacuum cleaner, characterized in that a and suction hose connected communicated directly or indirectly to the mouth member.   The center part of the seal body closes the tip end of the hose connection pipe when the hose connection pipe presses the center part of the seal body inward of the bag-like part. The electric vacuum cleaner according to 1.   An electric blower built in the vacuum cleaner body, a dust collection chamber provided on the suction side of the electric blower, and a bag-like portion that is detachably accommodated in the dust collection chamber and that can filter and collect the sucked dust A support frame that is bonded to the opening of the bag-shaped portion so that the insertion port is aligned, and an outer peripheral portion is bonded to the support frame to cover the insertion port and has a slit in the peripheral portion. A dust collection bag provided with a free sealing body, a hose connection pipe connected to a hose connection port provided in communication with the dust collection chamber and provided with a discharge port on an end side surface, and a tip pipe port of the hose connection pipe A tube opening closing body having a sheet body pressing portion that presses a central portion of the seal body inward of the bag-shaped portion and stretches the slit to form a suction opening, and extends the slit. With the suction opening formed, the hose connection pipe is An electric cleaning comprising: a lock mechanism that can be held in a gas connection port; and a suction hose that is connected to the hose connection tube and that directly or indirectly communicates with a suction port body that sucks dust from the floor surface. Machine.   4. The electric vacuum cleaner according to claim 3, wherein the tube opening closing body has a rectifying unit having a rectifying surface that has the sheet body pressing portion at a front end and guides an air flow to the discharge port at a rear end. Machine.

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