JP2010194103A - Vacuum cleaner - Google Patents

Abstract

[PROBLEMS] To secure the sealing performance of a dust collector accommodated in a vacuum cleaner main body with respect to a dust collector suction port, and to improve the durability of a front seal member that bears this seal and the detachability of the dust collector.
A vacuum cleaner body 2 including an electric blower 4 has a dust collector housing chamber 2a on the front side of the blower 4 and a main body suction port 11 into which a dust suction hose 13 can be inserted and removed. The dust collector 15 that is attached and detached from above has a dust collector suction port 17 that communicates with the suction port 11, and the front seal member 31 is connected to the suction port when the dust collector 15 is attached to and detached from the storage chamber 2 a. The retracted position deviates forward from the movement locus 17 and the seal position pressed against the suction port 17 of the dust collector 15 accommodated in the accommodating chamber 2a at the rear. An interlocking means 20 having a lever 21 and an urging spring 33 for interlocking the seal member 31 with the attachment / detachment of the dust collector 15 is provided, and the seal member 31 is brought into the retracted position in a state where the dust collector is not inserted into the storage chamber 2a. Arrange.
[Selection] Figure 2

Description

  The present invention relates to a vacuum cleaner in which a dust collector such as a dust collection unit or a dust bag for collecting sucked dust is detachably disposed in a dust collector housing chamber provided in a suction air passage in a vacuum cleaner body. About.

  A dust collection unit chamber opened upward is formed in the vacuum cleaner main body, and the dust collection unit is attached to and detached from above in the unit chamber, and in the mounted state, the vacuum cleaner connection port and the dust collection unit suction connection port There is known a vacuum cleaner in which a sealing property at the communicating portion is ensured (see, for example, Patent Document 1).

  In this vacuum cleaner, an electric blower is built in the rear side of the dust collection unit chamber, and a front opening that communicates the blower and the dust collection unit chamber is provided between the electric blower and the dust collection unit chamber. A connecting air passage portion for partitioning is provided in the cleaner body, and a ring-shaped rear seal member is attached to the front surface of the peripheral portion of the connecting air passage portion. Further, a connection port to which the dust collecting hose is connected is provided at the front end of the cleaner body, and a front seal member is attached to the connection port.

  The front seal member includes a packing portion made of an elastic material, a base member that supports the packing portion, and a coil spring as an urging means. The pedestal member is movable in the front-rear direction, and is urged backward by a coil spring, that is, in a direction in contact with the dust collection unit in the dust collection unit chamber.

  With this conventional technology, when the dust collection unit is installed in the dust collection unit chamber from above, the rear end surface of the dust collection unit is joined to the rear seal member, and the suction connection projecting from the front of the dust collection unit The mouth is joined to the front seal member. As a result, the dust collection unit is arranged in the suction air passage in the vacuum cleaner body from the suction connection port to the suction port of the electric blower, and the dust in the airflow sucked by the operation of the electric blower As it passes, it is separated from the air and collected in this dust collection unit.

  And in the said prior art, when the dust collection unit was attached to or detached from the dust collection unit chamber, the suction connection port of the dust collection unit pushed the packing part of the front seal member attached to the connection port of the cleaner body. In some cases, the front seal member is moved forward in the direction away from the suction connection port against the coil spring, so that the frictional resistance between the front seal member and the dust collecting unit is reduced. Thereby, in the prior art, it is possible to secure the desired sealability at the position where the front seal member is pushed forward, while ensuring the durability by improving the detachability of the dust collecting unit and suppressing the wear of the front seal member.

JP 2007-54551 A (paragraphs 0010-0020, 0059-0068, 0095-0100, FIG. 1, FIG. 3 to FIG. 5, FIG. 24 to FIG. 29)

  However, in the prior art, when the dust collection unit is attached or detached, the suction connection port comes into contact with the front seal member, so that the seal portion of the seal member is retracted forward against the biasing force of the coil spring. . For this reason, although there is a certain effect on the detachability of the dust collection unit and the durability of the front seal member, it may not be sufficient.

  That is, with the movement of the dust collection unit, the seal portion of the front seal member may be rolled up due to the contact, which may adversely affect the detachability of the dust collection unit. At the same time, since the wear of the seal portion of the front seal member cannot be completely eliminated due to the contact, there is room for improvement in the durability of the front seal member.

  As described above, the conventional technology can secure the sealing performance of the dust collector accommodated in the vacuum cleaner main body with respect to the dust collector suction port, but the durability of the front seal member that bears this seal and the dust collection chamber with respect to the dust collection chamber. There is a problem that there is room for improvement in the detachability of the dust body.

  The present invention is premised on a vacuum cleaner in which a dust collector is detachably accommodated from above in a dust collector housing chamber provided in a vacuum cleaner body incorporating an electric blower.

  In order to solve the above-described problems, the present invention provides a front seal member that is brought into contact with and separated from a dust collector suction port of a dust collector accommodated in a dust collector housing chamber, and a dust collector that collects the seal member. Provided with interlocking means for interlocking with attachment / detachment of the dust collector to / from the body storage chamber, the front seal member has been moved forward from the movement path of the dust collector suction port when the dust collector is attached to / detached from the dust collector storage chamber. The front seal member is provided to be movable over a retracted position and a seal position pressed against the dust collector suction port of the dust collector accommodated in the dust collector housing chamber behind the retracted position. The front seal member is arranged at the retracted position in a state where the dust collector is not inserted in the dust collector accommodating chamber while being moved in the retracted position and the seal position in conjunction with the attachment / detachment of the dust collector to the accommodating chamber. It is characterized by .

  According to the electric vacuum cleaner of the present invention, it is possible to ensure the sealing performance of the dust collector housed in the vacuum cleaner body with respect to the dust collector suction port, the durability of the front seal member that bears this seal, and the attachment / detachment of the dust collector. This has the effect of improving the performance.

It is a schematic sectional drawing which shows the vacuum cleaner main body of the vacuum cleaner which concerns on the 1st Embodiment of this invention in the state by which the dust suction hose was connected to the main body inlet. It is a schematic sectional drawing which shows the vacuum cleaner main body of the vacuum cleaner of FIG. 1 in the state in which the dust suction hose is not connected to the main body suction port. It is a schematic sectional drawing which shows the vacuum cleaner main body of the vacuum cleaner which concerns on the 2nd Embodiment of this invention in the state by which the dust suction hose was connected to the main body inlet. It is a schematic sectional drawing which shows the vacuum cleaner main body of the vacuum cleaner of FIG. 3 in the state in which the dust suction hose is not connected to the main body inlet. It is a schematic sectional drawing which shows the vacuum cleaner main body of the vacuum cleaner which concerns on the 3rd Embodiment of this invention in the state by which the dust suction hose was connected to the main body inlet. It is a front view which shows the surroundings of the pivot part of the lever with which the vacuum cleaner of FIG. 5 is provided in the state in which the dust suction hose was connected to the main body suction port. It is a front view which shows the surroundings of the pivot part of the lever with which the vacuum cleaner of FIG. 5 is provided in the state where the dust suction hose is not connected to the main body suction port. (A) is a front view which shows the pivot part side site | part of one arm part of the lever of FIG.6 and FIG.7. (B) is a side view showing a pivot part side portion of the same arm part. (A) is a front view which shows the pivot part side site | part of the other arm part of the lever of FIG.6 and FIG.7. (B) is a side view showing a pivot part side portion of the other arm part.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.

  The code | symbol 1 in FIG.1 and FIG.2 has shown the vacuum cleaner. The vacuum cleaner 1 includes a vacuum cleaner body 2 that can be moved on a surface to be cleaned such as an indoor floor surface with rotation of a plurality of wheels (not shown), a suction air passage body, a dust collector, such as a dust collection unit 15, The rear seal member 19, the interlocking means 20, the front seal member 31, the lock means 35, and the like are provided.

  An electric blower 4 and a cord reel (not shown) are incorporated in the rear part of the cleaner body 2. The electric blower 4 is arranged with its suction port facing forward. The vacuum cleaner body 2 has a dust collector housing chamber, for example, a unit housing chamber 2a. The unit accommodating chamber 2 a is provided on the front side of the electric blower 4 so as to occupy most of the front portion of the cleaner body 2. The upper end of this unit accommodating chamber 2a is open. A dust collection unit 15 to be described later is attached and detached from above through the opened upper end.

  The cleaner body 2 has a first partition wall 5 that partitions the rear chamber of the cleaner body 2 in which the electric blower 4 and a cord reel (not shown) are disposed, and the unit accommodating chamber 2a. The first partition wall 5 has a ventilation portion 5a for spreading the intake pressure of the electric blower 4 to the unit accommodating chamber 2a. The ventilation part 5a is composed of, for example, a plurality of holes provided in substantially the entire area excluding the peripheral part of the first partition wall 5.

  The cleaner body 2 has a second partition wall 6 at its front end. The second partition wall 6, the first partition wall 5 provided behind this, the bottom wall of the cleaner body 2 extending between the lower ends thereof, and the side wall of the cleaner body 2 extending between the crest walls The unit accommodation chamber 2a is partitioned. A through hole 6 a is opened at the center of the second partition wall 6. The front wall 2 b of the cleaner body 2 is provided in front of the second partition wall 6.

  A front side of the unit housing chamber 2a, specifically, a front wall 2b of the cleaner body 2 is attached with a main body suction port 11 which is opened to the front wall 2b and protrudes toward the center of the second partition wall 6. It has been. The main body suction port 11 has a smaller diameter than the through hole 6a, and the tip thereof faces the central part of the through hole 6a. The length of the main body suction port 11 is shorter than the separation distance between the front wall 2 b and the second partition wall 6. A dust suction hose 13 to be described later is inserted into and removed from the main body suction port 11 from the front.

  As is well known, the suction air passage body includes a dust suction hose 13, an extension pipe (not shown), and a suction inlet for a floor surface (not shown). The dust suction hose 13 is formed by connecting a connecting tube portion 13a to one end of a flexible hose portion and connecting a hand operation tube having a handle to the other end. As shown in FIG. 1, the connecting tube portion 13 a of the dust suction hose 13 has a lock mechanism portion 14. The connecting cylinder part 13 a is fixed by the lock mechanism part 14 in a state of being connected to the main body suction port 11 by being inserted to a depth at which the tip thereof reaches the through hole 6 a of the second partition wall 6. At the same time, the connection tube portion 13 a of the dust suction hose 13 can pull the connection tube portion 13 a from the main body suction port 11 while the lock release button 14 a of the lock mechanism portion 14 is pressed.

  The rear end portion of the extension tube is detachably fitted to and connected to the distal end portion of the hand operating tube of the dust suction hose 13. An operation unit (not shown) is provided on the handle of the hand control tube. By pressing the operation instruction button of the operation unit, it is possible to specify the start and stop of the electric blower 4 and the strength of the operation. The suction port body has a suction head having a suction opening (not shown) on the lower surface thereof, and a connecting pipe provided at a central portion on the rear side of the head. The rear end portion of the connection pipe is fitted and connected to the front end portion of the extension pipe.

  Therefore, when the electric blower 4 is operated in a state where the dust suction hose 13 is inserted into the main body suction port 11 and connected to the cleaner main body 2, the dust-containing air sucked from the floor surface is absorbed into the suction air passage body. It is led to the main body inlet 11 through the main body.

  The dust collection unit 15 is detachably disposed in the unit storage chamber 2a from above. In FIG. 1 and FIG. 2, reference numeral 16 denotes a cover portion provided on the upper surface of the dust collection unit 15. The cover portion 16 is disposed so as to cover the upper end of the unit storage chamber 2a and the upper surface of the front end of the cleaner body 2 in a state where the dust collection unit 15 is stored in the unit storage chamber 2a. The cover portion 16 is provided to improve the appearance of the electric vacuum cleaner 1, but may be omitted.

  The dust collection unit 15 has a unit suction port 17 as a dust collector suction port. The unit suction port 17 has, for example, a short cylindrical shape that protrudes forward from the front central portion of the dust collection unit 15. The unit suction port 17 is in a state in which the dust collection unit 15 is mounted in the unit storage chamber 2a, close to the back of the second partition wall 6 and opposed to the central portion of the through hole 6a as shown in FIG. Placed in. The diameter of the unit suction port 17 is substantially equal to the diameter of the connection cylinder part 13a.

  The dust collection unit 15 is formed so as to exhaust air separated from dust from a plurality of exhaust holes (only one is shown) 18 provided on the rear surface 15a of the dust collection unit 15. The illustrated exhaust hole 18 is a slit extending vertically, but is not limited thereto. An annular rear seal member 19 is attached to the periphery of the rear surface 15 a of the dust collection unit 15. The rear seal member 19 is formed of a seal material that can be elastically deformed, such as rubber or elastomer.

  The rear seal member 19 is provided so as to surround the area where each exhaust hole 18 is opened, and contacts the first partition wall 5 in a state where the dust collection unit 15 is mounted in the unit accommodating chamber 2a. Thus, the wall is disposed so as to surround the ventilation portion 5a. The length in the front-rear direction from the rear seal member 19 to the tip (front end) of the unit suction port 17 is substantially equal to the length in the front-rear direction of the unit accommodating chamber 2a.

  The dust collection unit 15 has dust separation means (not shown) in its interior and a dust collection chamber for storing dust separated from air by the dust separation means. The dust separation means may be a cyclone type that separates air and dust by centrifugal dust separation, a filtration type that separates air and dust by filtration, or both of them may be provided as dust separation means. . Reference numeral 15b in FIGS. 1 and 2 denotes a bottom cover that can be opened and closed of the dust collection unit 15. The bottom cover 15b collects dust in a state in which the dust collection unit 15 is taken out of the cleaner body 2. Opened to throw away the dust collected in the room.

  The interlocking means 20 provided in the cleaner body 2 includes a lever 21 and an urging spring 33.

  The lever 21 includes a first arm portion 22 and a second arm portion 23. In the case of the present embodiment, the arm portions 22 and 23 are integrally formed. The lever 21 is supported so as to be rotatable around a pivot 24 provided at a portion where the arm portions 22 and 23 are continuous. Both ends of the pivot 24 (not shown) are supported by a pivot support (not shown). The pivot support part is provided on the second partition wall 6 or the like, for example, facing the gap G between the second partition wall 6 and the front wall 2b.

  Most of the first arm portion 22 is housed in the bottom of the unit housing chamber 2a in order to receive the dust collection unit 15 housed in the unit housing chamber 2a from below. The front end portion of the first arm portion 22 penetrates the lower end portion of the second partition wall 6 and is inserted into the gap G between the second partition wall 6 and the front wall 2b. The rear end portion 22 a of the first arm portion 22 is close to the first partition wall 5.

  The second arm portion 23 protrudes upward from the front end portion of the first arm portion 22, and is provided to extend upward in the gap G.

  The second arm portion 23 includes an arm base 25 and a member holder 26, for example. The second arm portion 23 is shorter than the first arm portion 22, so that the lever 21 has an L-shaped bell crank shape. The arm base 25 is integrally continuous with the front end portion of the first arm portion 22 and is bent upward from the front end portion.

  The member holder 26 is connected to the arm base 25 and protrudes above the arm base 25. The member holder 26 is formed with a fitting convex portion 26a protruding rearward. At the same time, a seal member mounting hole 27 is opened at the center of the fitting convex portion 26a. The member holder 26 is formed larger than the through hole 6 a of the second partition wall 6, and the second partition wall 6 is formed around the through hole 6 a as the second arm portion 23 rotates around the pivot 24. It is possible to contact and separate from the front side. The fitting convex part 26a is formed in a size that can be inserted into and removed from the front side of the through hole 6a.

  The front seal member 31 is an integrally molded product made in a ring shape from a material that can be elastically deformed, such as rubber or elastomer, and is attached to the second arm portion 23. The front seal member 31 covers a hole covering portion that covers the seal member mounting hole 27, a front cover portion that covers the front surface of the hole edge portion of the seal member mounting hole 27, and a rear surface of the hole edge portion of the seal member mounting hole 27. And a rear cover. In addition, the front side sealing member 31 may be formed only by the back surface covering part at least among each said part.

  The front seal member 31 is movable over the retracted position and the seal position as the second arm portion 23 to which the front seal member 31 is attached is rotated around the pivot 24.

  A state in which the front seal member 31 is disposed at the retracted position is shown in FIG. The front seal member 31 in the retracted position is attached to and detached from the unit accommodating chamber 2a so that the rear seal member 19 attached to the dust collection unit 15 is brought into contact with the first partition wall 5. When moving, the unit suction port 17 of the dust collection unit 15 deviates to the front side from the movement locus.

  A state in which the front seal member 31 is disposed at the seal position is shown in FIG. The front seal member 31 at this seal position is pressed against the front end surface of the unit suction port 17 of the dust collection unit 15 mounted in the unit storage chamber 2a.

  The lever 21 is biased by a biasing spring 33 in the direction in which the second arm portion 23 is disposed at the retracted position. For example, a coil spring can be suitably used as the urging spring 33. The biasing spring 33 is sandwiched between, for example, the first arm portion 22 and the bottom wall of the cleaner body 2. The urging spring 33 can be provided between the second arm portion 23 and the front wall 2b, or, instead of the coil spring, one end is locked to the lever 21 and the other end The lever 21 can also be urged using a torsion spring that is locked to a fixed portion such as a pivot support portion (not shown).

As in this embodiment, a bias spring 33 made of a coil spring is disposed below the first arm portion 22 and close to the rear end portion 22a in the unit storage chamber 2a that is a dust collector storage chamber. In the configuration, it is easier to dispose the urging spring 33 than in the case where the urging spring 33 is disposed in the gap G. Not only that, the amount of movement of the rear end of the first arm portion 22 is larger than the amount of movement of the upper end of the second arm portion 23 that accompanies the rotation of the lever 21. Can be used. For this reason, the degree of freedom of selection of the biasing spring 33 is high, and the gap G is widened to increase the length in the front-rear direction of the cleaner body 2 in order to secure the arrangement space of the biasing spring 33 thus selected. It is preferable in that it is not necessary to do so.
The lock means 35 provided in the cleaner body 2 can fix the lever 21 in a state where the front seal member 31 is disposed at the seal position, and can release this fixation. The lock means 35 includes, for example, a lock member 36, a lock spring (not shown), a release portion 37, a release button 38, and the like.

  The lock member 36 is attached to the lower end portion of the first partition wall 5 so as to penetrate the first partition wall 5 in the front-rear direction, and is urged forward by a lock spring (not shown). The front portion of the lock member 36 inserted into the unit accommodating chamber 2a has a slanted surface that descends toward the front end. The rear end portion 22 a of the first arm portion 22 can be engaged with and disengaged from the front portion of the lock member 36. The release portion 37 is provided across the lock member 36 and the release button 38, and operates in conjunction with the push-in operation of the release button 38, thereby causing the lock member 36 to retreat against the lock spring. It is configured. The release button 38 is arranged on the upper surface of the rear portion of the cleaner body 2 and is provided so that it can be pushed in by the user.

  In the vacuum cleaner 1 having the above-described configuration, when the dust collection unit 15 is thrown away, in order to put the dust collection unit 15 into and out of the unit storage chamber 2a of the cleaner body 2, a suction air passage is provided in advance. This is performed in a state in which the connecting tube portion 13 a of the body dust suction hose 13 is removed from the cleaner body 2.

  In this state, the release button 38 of the lock means 35 is pushed downward to release the lock means 35, whereby the lever 21 of the interlocking means 20 is rotated to retract the front seal member 31 as shown in FIG. While being able to arrange | position to a position, the dust collection unit 15 accommodated in the unit storage chamber 2a can be popped up.

  That is, as the release portion 37 moves backward against the lock spring (not shown) in conjunction with the pushing of the release button 38, the lock member 36 moves to the rear end portion of the first arm portion 22 of the lever 21. The first arm portion 22 is released from the position 22a. For this reason, the biasing spring 33 that has been in a compressed state pushes up the first arm portion 22. Thereby, the lever 21 is rotated in the clockwise direction in the drawing, and at the same time, the dust collecting unit 15 placed thereon is popped up by the first arm portion 22.

  When the lever 21 starts to rotate clockwise in the initial stage of taking out the dust collecting unit 15, the front seal member 31 attached to the second arm portion 23 is immediately accommodated in the unit accommodating chamber 2 a. The dust collecting unit 15 starts to move away from the unit suction port 17 and is eventually disposed at the retracted position shown in FIG. For this reason, when dust collection unit 15 is popped up, it can control that unit suction mouth 17 interferes with this front side sealing member 31 so that front side sealing member 31 may be rubbed.

  Therefore, there is no fear that the front side seal member 31 will flutter and the wear of the front side seal member 31 is accelerated accordingly, and the front side seal member 31 does not become a frictional resistance, so that the dust collection unit 15 can be smoothly popped up. Can be made. Moreover, since the dust collection unit 15 is popped up as described above, the dust collection unit 15 can be easily taken upward from the unit storage chamber 2a of the cleaner body 2.

  When the dust collection unit 15 is removed, the front seal member 31 disposed at the retracted position shown in FIG. 2 is attached to the dust collection unit 15 when the dust collection unit 15 is attached to or detached from the unit storage chamber 2a. It is arranged on the front side according to the movement locus of the unit suction port 17. As long as the dust collection unit 15 is not attached, the front seal member 31 is held at the retracted position shown in FIG.

  For this reason, after the dust is thrown away, the rear seal member 19 with the dust collecting unit 15 mounted on the rear surface 15a thereof is disposed above the unit housing chamber 2a of the cleaner body 2 so as to be along the first partition wall 5. It is possible to prevent the unit suction port 17 from interfering with the front seal member 31 so as to rub against the front seal member 31 when being pushed down and housed. Thereby, there is no fear that the front side seal member 31 is rolled up and the wear of the front side seal member 31 is accelerated accordingly, and the front side seal member 31 does not become a frictional resistance, and the dust collection unit 15 can be smoothly moved. It can be accommodated in the unit accommodating chamber 2a.

  As the dust collection unit 15 is housed in the unit housing chamber 2a, the bottom cover 15b of the dust collection unit 15 hits the first arm portion 22 from above, and after this point (the end of the dust collection unit 15 installation) Since the first arm portion 22 is pushed down, the lever 21 is rotated counterclockwise in FIG. 2 while compressing the biasing spring 33. As a result, the second arm portion 23 that has been tilted until then occurs vertically, so that the fitting convex portion 26a of the second arm portion 23 is passed through the through hole 6a of the second partition wall 6. Thus, the front seal member 31 attached to the fitting convex portion 26 a is pressed against the front end surface of the unit suction port 17 of the dust collection unit 15. At the same time, the member holder 26 having the fitting convex portion 26a is brought into contact with the front surface of the second partition wall 6 so as to close the through hole 6a.

  Then, just before the front seal member 31 reaches the seal position, the rear end portion 22a of the first arm portion 22 pushed down by the dust collecting unit 15 pushes the lock member 36 of the lock means 35 backward. However, it passes below the lock member 36. Immediately after this, the lock member 36 is pushed back by a lock spring (not shown), and the lock member 36 engages with the upper surface of the rear end portion 22a of the first arm portion 22 arranged substantially horizontally.

  Thus, at the same time as the front seal member 31 reaches the seal position, the lever 21 is fixed by the lock means 35. At the same time, the dust collection unit 15 is accommodated in the unit accommodation chamber 2a to a predetermined depth. Thereby, the mounting of the dust collecting unit 15 to the unit accommodating chamber 2a is completed, and the state is shown in FIG.

  When the dust collecting unit 15 is mounted, as described above, when the second arm portion 23 rotates rearward with the pivot 24 as a fulcrum to move the front seal member 31 from the retracted position to the seal position, the front seal member is used. 31 is pressed against the unit suction port 17. Therefore, the front-side seal member 31 is in close contact with the unit suction port 17, and a sealing property between them can be strongly secured. In addition, since the dust collection unit 15 is pushed backward by the second arm portion 23, the rear seal member 19 attached to the rear surface 15a of the dust collection unit 15 is pushed against the first partition wall 5. The sealing property between them can be strongly secured.

  In addition, in the present embodiment, when the connection cylinder portion 13a of the dust suction hose 13 is inserted into the main body suction port 11, reaches a predetermined insertion depth and is fixed by the lock mechanism portion 14, the connection as shown in FIG. The tip of the cylinder portion 13a is brought into close contact with the front seal member 31, and the dust collection hose 13 pushes the dust collection unit 15 backward. Therefore, the sealing property between the front seal member 31 and the unit suction port 17 and the sealing property between the rear seal member 19 and the first partition wall 5 can be further ensured.

  As described above, the sealing performance on both the front and rear sides of the dust collecting unit 15, that is, the intake side and the exhaust side, is determined by rotating the second arm portion 23 backward and inserting the connecting cylinder portion 13 a into the main body suction port 11. It can be strengthened by using this, and the dust absorption performance when using the vacuum cleaner 1 can be improved accordingly.

  In the state shown in FIG. 1, the biasing spring 33 is bent and compressed, so that the first arm portion 22 of the lever 21 is held in a state of being biased upward. Therefore, when the release button 38 is pushed down with the connecting cylinder portion 13a of the dust suction hose 13 removed from the main body suction port 11, the front seal member 31 is retracted from the seal position as described above. And the dust collecting unit 15 pops up.

  As described above, the electric vacuum cleaner 1 of the present embodiment can ensure the sealing performance of the dust collection unit 15 attached to the vacuum cleaner main body 2 with respect to the unit suction port 17 and the durability of the front seal member 31 that bears this seal. And the detachability of the dust collecting unit 15 with respect to the unit accommodating chamber 2a can be improved.

  In the first embodiment, the rear seal member 19 is mounted on the rear surface 15a of the dust collecting unit 15. Instead, the rear seal member 19 surrounds the ventilation portion 5a on the front surface of the first partition wall 5. In a state where the dust collection unit 15 is mounted in the unit storage chamber 2a, the rear seal member 19 is sandwiched between the rear surface 15a of the dust collection unit 15 and the first partition wall 5, and the dust collection unit The sealing property between the rear surface of 15 and the first partition wall 5 may be ensured.

  A second embodiment of the present invention will be described with reference to FIGS. Since the second embodiment is the same as the first embodiment except for the matters described below, including the parts not shown in FIGS. 3 and 4, the same reference numerals as those in the first embodiment are used for the same configurations as the first embodiment. A description thereof will be omitted.

  In the second embodiment, a dust collection bag 41 is used as a dust collector instead of the dust collection unit. The dust collection bag 41 is formed by attaching a breathable filtration bag 43 to a mouth frame 42 made of thick paper such as cardboard. The mouth frame 42 has an inlet opening 42a as a dust collector suction port at the center thereof.

  In the second embodiment, a dust collection chamber 2c is formed in the cleaner body 2 as a dust collection chamber. The dust collection chamber 2c is opened on the upper surface of the cleaner body 2, and this opening is airtightly closed by a body lid 8 (see FIG. 3) used in place of the cover portion of the first embodiment. The rear end portion of the main body lid 8 is rotatably connected to the upper surface portion of the cleaner body 2, and the upper surface opening of the cleaner body 2 is opened and closed by raising and lowering the main body lid 8 accompanying this rotation. 3 and 4, reference numeral 9 denotes an annular rubber seal material that is attached to the back surface of the main body lid 8 and is brought into contact with and separated from the upper surface of the cleaner body 2. When it is held by the lid locking means (not shown) in the above state, it comes into contact with the periphery of the upper surface opening of the cleaner body 2 to ensure airtightness of the dust collection chamber 2c.

  In the second embodiment, a mouth frame holder 45 for supporting the mouth frame 42 of the dust collection bag 41 is disposed in the dust collection chamber 2 c close to the second partition wall 6. The mouth frame holder 45 is composed of a holder lower frame portion 45a and a pair of left and right holder side frame portions 45b (only one shown) that are bent upward at substantially right angles from both ends. Holder grooves 45c that are continuous with each other over the frame portion 45b are formed.

  The holder groove 45c is opened to the inner space of the mouth frame holder 45, and is also opened to the upper ends of the pair of left and right holder side frame portions 45b. When the mouth frame 42 is removably inserted into the holder groove 45c from above, the mouth frame holder 35 supports the inside of the dust collecting chamber 2c with the mouth frame 42 standing substantially vertically. In such a support state, as shown in FIG. 3, the inlet opening 42 a of the mouth frame 42 is opposed to the through hole 6 a of the second partition wall 6 and the main body suction port 11 in front thereof.

  The holder lower frame portion 45a into which the lower edge portion of the mouth frame 42 is inserted has an escape portion 45d that penetrates the holder lower frame portion 45a in the thickness direction (the front-rear direction of the cleaner body 2). The escape portion 45 d is open to an inner space of the mouth frame holder 45. The first arm portion 22 of the lever 21 is passed through the escape portion 45d, and the turning motion of the lever 21 is allowed by the escape portion 45d.

  In the second embodiment, the rear seal member used in the first embodiment is omitted because the dust collection bag 41 is disposed as a dust collector in the dust collection chamber 2c where airtightness is maintained. The configurations other than those described above are the same as those in the first embodiment including configurations not shown in FIGS. 3 and 4.

  In the vacuum cleaner 1 of the second embodiment, in order to put the dust bag 41 into and out of the dust collection chamber 2c of the cleaner body 2, such as when the dust bag 41 is replaced with the main body lid 8 opened, This is performed in a state in which the connecting tube portion 13 a previously held by the dust suction hose 13 of the suction air passage body is removed from the cleaner body 2.

  In this state, the release button 38 of the lock means 35 is pushed downward to release the lock means 35, so that the lever 21 is rotated and the front seal member 31 is placed in the retracted position as shown in FIG. In addition, the dust collection bag 41 accommodated in the dust collection chamber 2c can be popped up.

  That is, as the release portion 37 moves backward against the lock spring (not shown) in conjunction with the pushing of the release button 38, the lock member 36 moves to the rear end portion of the first arm portion 22 of the lever 21. The first arm portion 22 is released from the position 22a. For this reason, the biasing spring 33 that has been in a compressed state pushes up the first arm portion 22. As a result, the lever 21 is rotated clockwise in the figure, and at the same time, the dust collection bag 41 placed thereon is popped up by the first arm portion 22. In this case, the first arm portion 22 pushes up the filter bag 43 in a state where the mouth frame 42 and dust are accumulated and the shape can be maintained, and a pop-up is started. As the filter bag 43 continues to be pushed up, the dust bag 41 is popped up as shown in FIG.

  As soon as the lever 21 starts to rotate clockwise in the initial stage of taking out the dust bag 41, the front seal member 31 attached to the second arm portion 23 is immediately collected in the dust collection chamber 2c. The dust bag 41 starts to move away from the entrance opening 42a and eventually is disposed at the retracted position shown in FIG. For this reason, when the dust bag 41 is popped up, it is possible to prevent the mouth frame 42 having the inlet opening 42 a from interfering with the front seal member 31 so as to rub the front seal member 31.

  Therefore, there is no fear that the front side seal member 31 will flutter and the wear of the front side seal member 31 will be promoted accordingly, and the front side seal member 31 will not become frictional resistance, and the dust collection bag 41 will pop up smoothly. Can be made. Moreover, since the dust bag 41 is popped up as described above, the dust bag 41 can be easily taken out from the dust chamber 2c of the cleaner body 2.

  When the dust bag 41 is removed, the front seal member 31 disposed at the retracted position shown in FIG. 4 is attached to the dust bag 41 when the dust bag 41 is attached to and detached from the dust chamber 2c. It arrange | positions at the front side with the movement locus | trajectory of the inlet opening 42a. As long as the dust bag 41 is not attached, the front seal member 31 is held at the retracted position shown in FIG.

  For this reason, the dust collection bag 41 is pressed into the holder groove 45c of the mouth frame holder 45 from below to fit the dust collection bag 41 into the dust collection chamber 2c of the cleaner body 2 after the dust is discarded. When the bag 41 is mounted, the mouth frame 42 having the inlet opening 42 a can be prevented from interfering with the front seal member 31 so as to rub the front seal member 31. Thereby, there is no fear that the front side seal member 31 will be rolled up and the front side seal member 31 will be accelerated accordingly, and the front side seal member 31 will not become a frictional resistance. It can be accommodated in the dust collection chamber 2c.

  As the dust collection bag 41 is accommodated in the dust collection chamber 2c, the mouth frame 42 of the dust collection bag 41 hits the front portion of the first arm portion 22 from above, and after this time (the end of the dust collection bag 41 attachment) Since the first arm portion 22 is pushed down, the lever 21 is rotated counterclockwise in FIG. 4 while compressing the biasing spring 33. As a result, the second arm portion 23 that has been tilted until then occurs vertically, so that the fitting convex portion 26a of the second arm portion 23 is passed through the through hole 6a of the second partition wall 6. The front seal member 31 attached to the fitting convex portion 26 a is pressed against the front surface of the peripheral portion of the inlet opening 42 a of the mouth frame 42 supported by the mouth frame holder 45. At the same time, the member holder 26 having the fitting convex portion 26a is brought into contact with the front surface of the second partition wall 6 so as to close the through hole 6a.

  The rear end portion 22a of the first arm portion 22 pushed down by the mouth frame 42 of the dust collection bag 41 immediately before the front seal member 31 reaches the seal position in this way is the lock member 36 of the lock means 35. Is pushed rearward and passes below the lock member 36. Immediately after this, the lock member 36 is pushed back by a lock spring (not shown), and the lock member 36 engages with the upper surface of the rear end portion 22 a of the first arm portion 22.

  Thus, at the same time as the front seal member 31 reaches the seal position, the lever 21 is fixed by the lock means 35. At the same time, the dust collection bag 41 is accommodated in the dust collection chamber 2c to a predetermined depth. Thereby, the attachment of the dust bag 41 to the dust chamber 2c is completed, and the state is shown in FIG.

  As described above, in the state where the second arm portion 23 is rotated backward with the pivot 24 as a fulcrum and the front seal member 31 is moved from the retracted position to the seal position, the dust bag 41 is properly mounted. As the second arm portion 23 rotates, the front seal member 31 surrounds the inlet opening 42a and presses against the mouth frame 42 from the front side. Sealing performance between is strongly secured.

  In addition, in the second embodiment, after the dust bag 41 is mounted, the connecting tube portion 13a of the dust suction hose 13 is inserted into the main body suction port 11, reaches a predetermined insertion depth, and is fixed by the lock mechanism portion 14. In this state, as shown in FIG. 3, the tip of the connecting tube portion 13 a is brought into close contact with the front seal member 31, and the dust collection bag 41 is pushed backward also by the dust suction hose 13. Therefore, the sealing performance between the front seal member 31 and the mouth frame 42 of the dust bag 41 can be further ensured.

  As described above, the sealing performance on the intake side of the dust collection bag 41 is enhanced by using the second arm portion 23 to rotate backward and the insertion of the connecting tube portion 13a into the main body suction port 11. Accordingly, it is possible to improve the dust absorption performance when the vacuum cleaner 1 is used.

  In the state shown in FIG. 3, the biasing spring 33 is bent and compressed, so that the first arm portion 22 of the lever 21 is held in a state of being biased upward. Therefore, when the release button 38 is pushed down with the connecting cylinder portion 13a of the dust suction hose 13 removed from the main body suction port 11, the front seal member 31 is retracted from the seal position as described above. And the dust bag 41 is popped up.

  As described above, the electric vacuum cleaner 1 according to the second embodiment can ensure the sealing performance with respect to the inlet opening 42a of the dust bag 41 attached to the main body 2 of the vacuum cleaner, and the durability of the front seal member 31 that bears this seal. And the detachability of the dust collection bag 41 with respect to the dust collection chamber 2c can be improved.

  A third embodiment of the present invention will be described with reference to FIGS. Since the third embodiment is the same as the first embodiment except that the configuration of the lever 21 serving as interlocking means and a retraction spring are added, the same reference numerals as those in the first embodiment are assigned to the same configurations. The description is omitted.

  In the third embodiment, the lever 21 is made of separate members, the first arm portion 22 and the second arm portion 23 being not an integral part.

  As shown in FIGS. 9 (A) and 9 (B), the first arm portion 22 has a drive portion 28 formed so as to protrude from the side surface of the front end portion. The drive part 28 consists of a rib-shaped protrusion, for example. As shown in FIGS. 8A and 8B, the second arm portion 23 has a passive portion 29 that is formed so as to protrude from the side surface of the lower end portion. The passive part 29 consists of a semicircular convex part, for example. The first arm portion 22 and the second arm portion 23 are combined so that the drive portion 28 and the passive portion 29 are disengaged, and the drive portion 28 is the passive portion shown in FIG. The 29 passive surfaces 29a can be contacted and separated from the front side.

  As shown in FIG. 5, a retraction spring 30 is stretched between the member holder 26 of the second arm portion 23 and the front wall 2 b of the cleaner body 2. The retracting spring 30 urges the second arm portion 23 in a direction away from the second partition wall 6 to the front side with the pivot 24 as a fulcrum. In the third embodiment, the spring force of the retracting spring 30 is weaker than the spring force (biasing force) of the biasing spring 33.

  The configurations other than those described above are the same as those in the first embodiment, including configurations not shown in FIGS. In addition, the operation of the third embodiment is the same as that of the first embodiment except for the operation described below.

  Only in the final stage of mounting the dust collecting unit 15 in the unit storage chamber 2a, the arms 22 and 23 are brought into an interlocking state by the engagement of the drive unit 28 and the passive surface 29a of the passive unit 29. At the same time, both the arm portions 22 and 23 are in the non-interlocking state at a time other than the above time.

  That is, as shown in FIG. 5, the dust collecting unit 15 is mounted in the unit accommodating chamber 2a, and the first arm portion 22 pushed down by the dust collecting unit 15 has the drive unit 28 in a substantially horizontal state. The relationship of the passive unit 29 is shown in FIG. In this state, the drive unit 28 that is substantially vertical is in an engaged state in which the drive unit 28 is pressed against the passive surface 29a of the passive unit 29. Therefore, the second arm unit 23 resists the spring force of the retracting spring 30. Standing substantially vertically, the front seal member 31 is held in a state of being disposed at the seal position.

  When the dust collecting unit 15 is popped up from the unit housing chamber 2a in the procedure described in the first embodiment from the unit mounting state, first, the first arm portion 22 is rotated clockwise by the pushing up of the biasing spring 33. Begin. In this case, since the drive unit 28 moves in a direction away from the passive surface 29 a of the passive unit 29, the second arm unit 23 is not rotated by the first arm unit 22.

  However, since the second arm portion 23 is pulled forward by the retracting spring 30, the engagement between the drive portion 28 and the passive portion 29 is maintained in the range indicated by the angle θ in FIG. The arm portion 23 follows the first arm portion 22 and is rotated clockwise. Thus, at the initial stage of removal of the dust collecting unit 15, the second arm portion 23 is attached to the second arm portion 23 by being tilted forward with the pivot 24 as a fulcrum by the spring force of the retracting spring 30. The front seal member 31 is moved to the retracted position. Then, since the retracting spring 30 becomes a free length when the second arm portion 23 is rotated by the angle θ, the force to rotate the second arm portion 23 clockwise disappears further. . The arrangement of the first arm portion 22 in such a state is indicated by a two-dot chain line in FIG.

  Even after the retracting spring 30 becomes free length, the first arm portion 22 is pushed up by the biasing spring 33, and the pop-up operation of the dust collecting unit 15 is continued. In this case, since the drive unit 28 of the first arm unit 22 is separated from the passive surface 29a of the passive unit 29 of the second arm unit 23 that has already been tilted to the front side and is in a stationary state, The second arm portion 23 is not interlocked with the rotation of the first arm portion 22. The arrangement of the first arm portion 22 thus rotated to the pop-up completion state is indicated by a solid line in FIG.

  Therefore, the dust collection unit 15 can be popped up higher by turning the first arm portion 22 larger than the turning range of the second arm portion 23. At the same time, it is not necessary to increase the front-rear dimension of the gap G in which the second arm portion 23 is disposed in spite of such a pop-up, leading to an increase in the length of the cleaner body 2 in the front-rear direction. There is nothing.

  Contrary to the removal of the dust collection unit 15 described above, when the dust collection unit 15 is mounted in the unit accommodating chamber 2a, the first arm portion 22 pushed down by the dust collection unit 15 is indicated by a solid line in FIG. Since the drive unit 28 does not hit the passive surface 29a of the passive unit 29 during the period from the position to the position indicated by the two-dot chain line, the second arm unit 23 holding the front seal member 31 in the retracted position is The first arm portion 22 rotated counterclockwise around the pivot 24 is not interlocked.

  Subsequently, when the first arm portion 22 is further pushed down by the dust collecting unit 15 and reaches the position indicated by the two-dot chain line beyond the position indicated by the solid line in FIG. 7, the first arm portion 22 is locked by the locking means. Fixed in place. This period is the end of the mounting of the dust collection unit 15 to the unit storage chamber 2a. During this period, the drive unit 28 presses against the passive surface 29a of the passive unit 29 from the front side, and the first arm unit 22 rotates counterclockwise as described above. For this reason, the second arm portion 23 is interlocked with the first arm portion 22 to rotate backward in the range of the angle θ about the pivot 24 as a fulcrum. As a result, the front seal member 31 mounted on the second arm portion 23 is moved from the retracted position to the seal position and is kept in close contact with the unit suction port 17 of the dust collection unit 15 as shown in FIG. Is done.

  Therefore, the vacuum cleaner 1 of the third embodiment ensures the sealing performance for the unit suction port 17 of the dust collection unit 15 housed in the cleaner body 2 for the same reason as already explained in the first embodiment. In addition, it is possible to improve the durability of the front seal member 31 that bears this seal and the detachability of the dust collection unit 15 with respect to the unit storage chamber 2a. In addition, in the third embodiment, although the bell crank-shaped lever 21 is employed as the interlocking means, as described above, the second arm portion 23 is provided except at the end of the dust collecting unit 15 mounting. Since it is not interlocked with the 1st arm part 22 via the drive part 28 and the passive part 29, the height which the dust collection unit 15 pops up without causing the enlargement of the front-back direction of the cleaner body 2 is made more. There is an advantage that can be increased.

  DESCRIPTION OF SYMBOLS 1 ... Electric vacuum cleaner, 2 ... Vacuum cleaner main body, 2a ... Unit storage chamber (dust collector storage chamber), 2c ... Dust collection chamber (dust collector storage chamber), 4 ... Electric blower, 5 ... Partition wall, 5a ... Ventilation part, 11 ... Main body suction port, 13 ... Dust suction hose, 15 ... Dust collection unit (dust collector), 15a ... Rear face of dust collection unit, 17 ... Unit suction port (dust collector suction port), 18 ... Exhaust hole , 19 ... rear side sealing member, 20 ... interlocking means, 21 ... lever, 22 ... first arm part, 23 ... second arm part, 24 ... pivot, 28 ... drive part, 29 ... passive part, 30 ... retraction Spring 31, front seal member 32 urging spring 35 lock means 41 dust collection bag (dust collector)

Claims (5)

The electric blower has a built-in dust collector housing chamber whose upper end is opened on the front side of the electric blower, and the partition between the electric blower and the dust collector housing chamber is partitioned by a partition wall having a ventilation portion. A vacuum cleaner main body having a main body suction port to which the dust suction hose is detachably connected,
A dust collector that has a dust collector suction port communicating with the main body suction port and is detachably accommodated in the dust collector housing chamber from above;
When the dust collector is attached to and detached from the dust collector housing chamber, the retracted position deviates to the front side from the movement locus of the dust collector suction port, and stored in the dust collector housing chamber behind the retracted position. A front seal member movably provided over a seal position pressed against the dust collector suction port of the dust collector;
The front seal member is moved over the both positions in conjunction with the attachment / detachment of the dust collector with respect to the dust collector housing chamber, and the front side is not inserted into the dust collector housing chamber. Interlocking means for disposing a seal member at the retracted position;
The vacuum cleaner characterized by comprising.   The interlocking means protrudes upward from the first arm portion receiving the dust collector housed in the dust collector housing chamber from the lower side, and on the front side of the dust collector housing chamber. A second arm portion that is disposed and fitted with a front seal member, and includes a lever that is pivotable about a portion where the arm portions are continuous, and accompanies the attachment and detachment of the dust collector 2. The electric vacuum cleaner according to claim 1, wherein the front seal member is moved over the two positions by the rotation of the second arm portion.   The lever is fixed in a state where the front seal member is arranged at the seal position, and the fixing is provided when the dust collector is taken out from the dust collector housing chamber, and the lock means is releasable. 3. The electric vacuum cleaner according to claim 2, wherein the interlocking means includes a biasing spring that biases the lever in a direction in which the front seal member is disposed at the retracted position.   The dust collector comprises a dust collection unit having an exhaust hole on the rear surface, and an annular rear seal member is provided on one of the rear surface or the partition wall facing the rear surface, and the dust collector is the dust collector. The front seal member is sandwiched between the second arm portion and the dust collector suction port while the rear seal member is sandwiched between the rear surface and the partition wall in a state of being mounted in the dust chamber. The electric vacuum cleaner according to claim 2 or 3, wherein the electric vacuum cleaner is configured.   The first arm part and the second arm part are separate members, the first arm part has a driving part, and the passive part to which the driving part can come in contact with and separate from the second arm part. And the second arm portion is biased by a retraction spring, and the drive portion is engaged with the passive portion only at the end of the attachment of the dust collector to the dust collector housing chamber. The vacuum cleaner according to any one of claims 2 to 4, wherein the both arm portions are in an interlocked state, and the other arm portions are in an unlinked state at other times.

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