JP5416549B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner.

  The vacuum cleaner sucks dust together with the airflow generated by driving the electric blower, and introduces the sucked airflow into the dust collector to collect the dust. The dust collector may be a bag-shaped filter or a cyclone dust separation system and / or filter incorporated in the case. Patent Document 1 shows an example of a vacuum cleaner provided with a case-type cyclone dust collector.

  An example of the structure of a vacuum cleaner provided with a case type dust collector is shown in FIGS. The vacuum cleaner 1 of FIG. 18 is provided with the main-body part 2 which incorporated the electric blower 6 (refer FIG. 19). The main body 2 has a power cord 8 that can be pulled out and wound from the rear surface. The electric vacuum cleaner 1 can be used by inserting the power plug 9 at the tip of the power cord 8 into a commercial power outlet (not shown).

  A flexible hose 3 is connected to the front surface of the main body 2. A handle portion 13 having an operation portion 14 is provided at the tip of the hose 3. The extension pipe 4 is connected to the handle portion 13, and a suction port body 5 having a suction port (not shown) on the lower surface is connected to the tip of the extension pipe 4.

  As shown in FIG. 19, the electric blower 6 is arranged at the rear part of the main body part 2, and the exhaust port 7 made of a group of small holes or slits is provided on the rear surface of the main body part 2. A dust collection chamber 19 that opens upward is provided at the front of the main body 2, and a dust collection device 20 that separates dust by a cyclone method is inserted therein. The dust collector 20 includes an inlet 21 through which an airflow sucked through the hose 3 flows in, and an outlet 24 through which the airflow separated from the dust by the dust collector 20 flows out. The outlet 24 is connected to a duct 15 extending from the suction side of the electric blower 6.

  The main body 2 is supported on the floor by two large wheels and one universal wheel, and the user who holds the handle 13 pulls the hose 3 to follow the user. Moving. When the user operates the operation unit 14 to bring the electric blower 6 into an operating state, an airflow flows into the dust collector 20 through the suction port body 5, the extension pipe 4, and the hose 3.

  The airflow that has flowed into the dust collection container 22 below the dust collector 20 from the inlet 21 rotates at high speed inside the dust collection container 22, whereby the dust contained in the airflow is separated. The airflow then travels from the center of the dust container 22 toward the filter 37 at the top of the dust collector 20. The airflow that has been captured and purified by the filter 37 is sucked into the electric blower 6 and discharged from the exhaust port 7.

  There is also a vacuum cleaner in which a dust collecting device has a mechanism for pushing out the collected dust. Patent Document 2 describes an electric vacuum cleaner in which a spiral rib is formed on the outer surface of a cylindrical prefilter and dust is pushed out from a dust collection case by rotating the prefilter.

JP 2007-252838 A JP 2000-342492 A

  An object of this invention is to improve the operativity of the lock member which maintains the dust collector inserted in the dust chamber of a vacuum cleaner main-body part in a dust chamber.

To achieve the above object, an electric vacuum cleaner according to the present invention is a main body forming a dust collecting chamber which is open, is fitted into the dust collecting chamber of the main body portion mounted on the outside with a built-in electric blower and a dust collector, the dust collecting device includes a filter, a dust removing member for removing dust by vibrating the filter by tapping with respect to the filter having the outer surface of the dust collecting apparatus, the filter A handle that can be rotated to generate vibration; and a lock member that maintains the dust collecting device in the dust collection chamber. The lock member and the handle are provided with one finger on the lock member, The dust collecting device maintained by the lock member is released by putting the other finger of the one hand on the handle and pulling the finger on the lock member toward the handle .

  According to this configuration, it is possible to put one finger on the lock member, and the other finger on the one hand can be hung on the handle for rotating the dust removal rotating body, so that it is easy to apply force to the finger that operates the lock member. Easy to operate. Further, by grasping the lock member and the handle with one hand, the one-handed handling of the dust collector can be performed.

Moreover, the present invention is characterized in that, in the vacuum cleaner configured as described above, the dust removing member strikes a peak portion of the filter .

According to this configuration, fine dust can be separated from the filter .

  According to the present invention, the operation of the lock member for maintaining the dust collecting device in the dust collecting chamber is facilitated, the handling of the dust collecting device is facilitated, and the usability of the vacuum cleaner is improved.

It is a perspective view of the main-body part of the vacuum cleaner which concerns on embodiment of this invention. It is a perspective view which shows the state which took out the dust collector from the main-body part of the vacuum cleaner which concerns on embodiment of this invention. It is the perspective view which looked at the state which took out the dust collector from the main-body part of the vacuum cleaner which concerns on embodiment of this invention from the different angle. It is a top view of the dust collector of the vacuum cleaner which concerns on embodiment of this invention. It is the perspective view which looked at the dust collector of the vacuum cleaner which concerns on embodiment of this invention at the angle near horizontal. It is a perspective view of the cover part decomposition | disassembly state of the dust collector of the vacuum cleaner which concerns on embodiment of this invention. It is a partial section perspective view of the dust collector of the vacuum cleaner concerning the embodiment of the present invention. It is a section perspective view of the dust collector of the vacuum cleaner concerning the embodiment of the present invention. It is a vertical sectional view of the dust collector of the vacuum cleaner according to the embodiment of the present invention. It is the perspective view which looked at the cover part from the lower part of the dust collector of the vacuum cleaner which concerns on embodiment of this invention. It is the disassembled perspective view which looked at the dust removal rotary body and the inner cylinder part from the upper direction of the dust collector of the vacuum cleaner which concerns on embodiment of this invention. It is the disassembled perspective view which looked at the dust removal rotary body and the inner cylinder part from the downward direction of the dust collector of the vacuum cleaner which concerns on embodiment of this invention. It is a perspective view of the filter of the dust collector of the vacuum cleaner which concerns on embodiment of this invention. It is the disassembled perspective view which looked at the inner cylinder part and the dust container from the upper direction of the dust collector of the vacuum cleaner which concerns on embodiment of this invention. It is the perspective view which looked at the dust collector of the vacuum cleaner which concerns on embodiment of this invention from the angle different from FIG. FIG. 16 is a perspective view similar to FIG. 15, in which components of the grip are disassembled. It is a perspective view showing the state where the dust collecting device of the vacuum cleaner concerning the embodiment of the present invention was cut in the vertical plane which passes a grip. It is a perspective view which shows the structural example of a vacuum cleaner. It is a vertical sectional view of the main body of the vacuum cleaner of FIG.

  Embodiments of the present invention will be described with reference to FIGS. 1 to 17. The vacuum cleaner according to the embodiment includes all the components of the configuration examples of FIGS. 18 and 19. The reference numerals used in the description of the configuration example are used as they are in the description of the embodiment. The directions of “front”, “rear”, “upper”, and “lower” used in the description of each component are the same as the directions of “front”, “rear”, “upper”, and “lower” of the main body 2.

  A dust collection chamber 19 whose upper surface is an opening is formed in the front portion of the main body 2. The dust collection chamber 19 has a substantially circular planar shape, and a dust collection device 20 for separating dust by a cyclone method is inserted into the dust collection chamber 19 from above.

  The outer shell of the dust collector 20 includes an upper cover part 40, an inner cylinder part 50 connected to the lower surface of the cover part 40, and a cylindrical dust collection container 22 connected to the lower end of the inner cylinder part 50. Is done. These components are arranged so as to be aligned along a vertical axis.

  As shown in FIG. 6, the cover part 40 is comprised by the base part 40a and the decorative board 40b piled up on it. The decorative board 40b constitutes a part of the exterior design of the main body 2 and is given a shape and color that match the other parts. A planar circular handle 41 protrudes from the upper surface of the cover portion 40, and its role will be described later.

  The cover part 40 has a shape as a whole with a shallow cup turned upside down as a whole. As shown in FIG. An outlet 24 is formed on the rear surface of the cover portion 40, and holding portions 43 and 44 are formed on the rear surface side and the front surface side on the lower peripheral surface. The holding parts 43 and 44 are for holding the inner cylinder part 50.

  As shown in FIG. 11, the inner cylinder part 50 has a structure in which an enlarged diameter part 52 having a diameter larger than that of the inner cylinder 51 is combined with an upper part of the inner cylinder 51. The inner cylinder 51 is arranged coaxially with the handle 41 and is combined with the enlarged diameter portion 52 so as to be capable of relative rotation around the vertical axis with respect to the enlarged diameter portion 52. The upper part of the inner cylinder 51 has a bowl shape, and an opening corresponding to the eye of the eyelet serves as an outlet 51 a that allows an air flow to flow out from the outside to the inside of the inner cylinder 51.

  The expanded diameter portion 52 has a conical inner bottom surface 52 a that is narrowed down like an funnel toward the inner cylinder 51. Mounting engagement portions 53 and 54 corresponding to the holding portions 43 and 44 of the cover portion 40 are provided on the outer periphery of the enlarged diameter portion 52. The inner cylinder part 50 is attached to the cover part 40 by engaging the attachment engaging part 53 with the holding part 43 and engaging the attachment engaging part 54 configured as a kind of clamp with the holding part 44. The inner cylinder part 50 can be removed from the cover part 40 by operating the attachment engaging part 54 with the fingers and removing it from the holding part 44.

The dust container 22 is attached to the inner cylinder part 50 as follows. As shown in FIG. 12, a plurality of mounting ribs 57 are formed at predetermined angular intervals in the lower portion of the outer peripheral surface of the enlarged diameter portion 52. The mounting rib 57 has a low L-shape when viewed from the front, and has a dead end at the right end. Correspondingly, as shown in FIG. 14, the dust collecting container 22 has a plurality of mounting grooves 25 for receiving the mounting ribs 57 at the upper end of the cylindrical portion 22 a forming the main portion thereof.

  In a state where the mounting rib 57 is received in the mounting groove 25, the dust collecting container 22 is formed in the mounting groove 25 when twisted in a predetermined direction, in this embodiment, counterclockwise when viewed from above. The protrusion engages with the upper surface of the mounting rib 57. When the projection is twisted to a place where it comes into contact with the dead end portion of the mounting rib 57, a so-called bayonet connection is formed, and the dust collecting container 22 does not come off the inner cylinder portion 50 even when pulled downward. When the dust collection container 22 is twisted in the opposite direction, the bayonet coupling is released, and the dust collection container 22 can be removed from the inner cylinder portion 50.

  The bottom of the dust collector 20, that is, the bottom of the dust container 22 is an opening for discharging dust. The opening is closed by a lid 60 that can be freely opened and closed. A mechanism for opening and closing the lid 60 will be described later.

  An inlet 21 is formed at one location on the peripheral surface of the dust collecting container 22. The inflow port 21 communicates with the hose connection port 2a (see FIG. 1) on the front surface of the main body 2 and receives the airflow from the hose 3. The inlet 21 is arranged in a tangent to the inner peripheral surface of the dust collection container 22 so that the airflow entering the dust collection container 22 swirls at high speed inside the dust collection container 22. The dust contained in the airflow is separated by the centrifugal force generated by the high-speed turning. The airflow after the dust separation is sucked into the inner cylinder 51 through the outlet 51a.

  In order to capture fine dust from the airflow that has entered the inside of the inner cylinder 51, a filter 37 is disposed at a location above the inner cylinder 51. The filter 37 is disposed inside the enlarged diameter portion 52, so that all the air that has entered the enlarged diameter portion 52 from the inner cylinder 51 passes through the filter 37 and does not rotate with respect to the enlarged diameter portion 52. It is attached. The filter 37 is circular in plan shape, and is a pleated filter in order to increase the dust collection area. As shown in FIG. 13, a plurality of pleats are arranged radially, and crests 37a and troughs 37b are arranged at predetermined angular intervals. The airflow that has entered the enlarged diameter portion 52 from the inner cylinder 51 passes from the bottom to the top of the filter 37 and travels toward the outlet 24.

  The filter 37 has a structure in which a high-performance filter medium such as a HEPA filter is supported by a synthetic resin frame. In FIGS. 7, 8, 9, 11, 12, and 17, the filter 37 is represented only by the framework.

  Fine dust adheres to the lower surface of the filter 37. If the filter 37 is clogged with fine dust, the suction force of the vacuum cleaner 1 is reduced. Therefore, in order to avoid this, the filter 37 is provided with a dust removing device 30.

  The dust removing device 30 includes a dust removing rotating body 31 shown in FIG. The dust removal rotary body 31 includes a shaft portion 31a at the center and an annular portion 31c at the outer periphery, and the shaft portion 31a and the annular portion 31c are connected by a plurality of spoke-like arm portions 31b. The shaft portion 31a is fitted to the hub portion 37c at the center of the filter 37, so that the coaxial relationship between the filter 37 and the dust removal rotating body 31 is maintained.

  In the present embodiment, there are a total of six arm portions 31b, but every other one, that is, a total of three arm portions 31b are provided with dust removing members 31e that flip the peak portions 37a of the filter 37. The dust removing member 31e hangs down from the dust removing member main body 31f fixed to the upper surface of the arm portion 31b, and a part of the dust removing member 31e can be seen in FIG. The dust removing member 31 e is a claw-like component made of an elastic body, and the tip enters the trough 37 b of the filter 37. When the dust removal rotating body 31 rotates with respect to the filter 37, the dust removal member 31e hits the peak portion 37a of the filter 37 in order. As a result, vibration is generated in the filter 37, and fine dust attached to the lower surface of the filter 37 falls.

  The dust removal rotating body 31 is rotated manually or by motor power when the electric blower 6 is stopped. First, a mechanism for manually rotating the dust removal rotating body 31 will be described.

  A handle 41 of the cover 40 is used for manual rotation of the dust removal rotating body 31. The handle 41, the dust removal rotary body 31, and the filter 37 are coaxially arranged. The rotation of the handle 41 is transmitted to the dust removing rotator 31 via the clutch portion 42 shown in FIG.

As shown in FIG. 9, a sleeve 41a is formed inside the cover portion 40, and a clutch portion 42 is held therein. The clutch part 42 is attached to the cover part 40 so that it cannot rotate and can move up and down within a certain range, and is biased downward by a spring (not shown).

  On the lower surface of the clutch portion 42, there is formed a rotation transmission portion 42a made up of a plurality of serrated projections arranged in a circle. Corresponding to this, as shown in FIG. 11, a rotationally transmitted portion 34 is formed at the center of the dust removing rotator 31. The rotation transmitting portion 42a meshes with the rotation receiving portion 34 by an urging force by a spring (not shown).

  When the upper end of the handle 41 is grabbed and turned in a predetermined direction, in this embodiment, clockwise, as viewed from above, the vertical surface of the sawtooth projection of the rotation transmitting portion 42a is the vertical surface of the sawtooth projection of the rotation transmitted portion 34. And the dust removal rotating body 31 rotates together with the handle 41 in the clockwise direction.

  When the handle 41 is turned in the reverse direction, the slope of the sawtooth projection of the rotation transmitting portion 42a gets over the slope of the sawtooth projection of the rotation transmitted portion 34. That is, the clutch portion 42 slides the slope portion of its serrated projection on the slope portion of the serrated projection of the rotationally-transmitted portion 34 and moves upward against the urging force. Get over 34. At this time, no power is transmitted to the rotationally transmitted portion 34.

  As described above, the rotation transmitting portion 42a and the rotation received portion 34 constitute a kind of one-way clutch. Therefore, by rotating the handle 41 clockwise or counterclockwise, the dust removing rotator 31 is rotated. It can be intermittently rotated clockwise. In FIG. 9, the clutch portion 42 is shown in a state of being retracted upward.

  The dust removal rotating body 31 is also rotated by a dust removal motor 33 shown in FIG. The dust removal motor 33 is used on the vertical axis, and an output gear 33a is fixed to the upper end of the shaft. The dust removal motor 33 is disposed in a space adjacent to the dust collection chamber 19 inside the main body 2, and a part of the output gear 33 a is exposed inside the dust collection chamber 19 as shown in FIG. 3.

  The gear case 32a is fixed to one place on the outer periphery of the dust collector 20, that is, one place on the outer periphery of the enlarged diameter portion 52 of the inner cylindrical portion 50 in this embodiment. The gear case 32a houses the input gear 32 that meshes with the output gear 33a. The input gear 32 has a structure in which two upper and lower gears are connected by a shaft, and the lower gear is exposed from the gear case 32a so as to engage with the output gear 33a when the dust collecting device 20 is inserted into the dust collecting chamber 19. . As shown in FIG. 11, the upper gear of the input gear 32 protrudes into the enlarged diameter portion 52 from a window 52 b formed in the enlarged diameter portion 52. The upper gear of the input gear 32 meshes with a rack 31 d formed on the outer peripheral surface of the annular portion 31 c of the dust removal rotator 31 and transmits the rotational force of the dust removal motor 33 to the dust removal rotator 31.

  The control device (not shown) of the vacuum cleaner 1 drives the dust removal motor 33 for a predetermined time after the electric blower 6 being driven stops. The dust removal motor 33 rotates the dust removal rotating body 31 in the clockwise direction when viewed from above. In this rotational direction, the clutch portion 42 is retracted upward against the urging force and does not mesh with the rotationally transmitted portion 34, so the handle 41 does not rotate.

  Part of the fine dust dropped from the filter 37 falls directly into the inner cylinder 51, and the others fall onto the inner bottom surface 52 a of the enlarged diameter portion 52. A scraper 36 (see FIG. 12) is disposed on the inner bottom surface 52 in order to scrape fine dust remaining on the inner bottom surface 52 a of the enlarged diameter portion 52 into the inner cylinder 51. The scraper 36 is fixed to the shaft portion 31 a of the dust removal rotary body 31. The scrapers 36 are obtained by attaching a thin sheet of soft rubber or soft resin to the arm portion of a resin molded product, and are disposed in a pair so as to be symmetrical with respect to the shaft portion 31a.

  An engaging portion 35 is formed at the base of the arm portion of the scraper 36. The engaging portion 35 engages with an engaging portion 56 (see FIG. 11) provided at the upper end of the inner cylinder 51. Thereby, when the dust removal rotary body 31 rotates, the inner cylinder 51 also rotates.

  On the outer surface of the inner cylinder 51, a flange portion 51 c is formed at the boundary between the upper flange portion and the lower flange portion. A spiral pushing portion 55 is formed on the outer surface of the inner cylinder 51 below the flange portion 51c. When the inner cylinder 51 rotates, the dust accumulated on the outer side of the inner cylinder 51 is compressed by the feeding action of the pushing portion 55. The direction in which dust is compressed by the push-out portion 55 coincides with the direction in which the dust collector 20 is inserted into the dust collection chamber 19. If the inner cylinder 51 is rotated with the lid 60 opened, dust is pushed out of the dust collecting container 22.

  The lid portion 60 has a shallow cup shape, and is attached to the cylindrical portion 22a of the dust collecting container 22 by a hinge portion 60a shown in FIG. A planar boss 60b (see FIG. 9) is provided at the center of the upper surface of the lid 60. A ring-shaped packing 62 that is in close contact with the inner surface of the opening 51b (see FIG. 12) at the lower end of the inner cylinder 51 is attached to the outer periphery of the boss 60b. The packing 62 seals the lower end of the inner cylinder 51, and prevents airflow from flowing into the inner cylinder 51 from here and leakage of fine dust from the inner cylinder 51. In addition, between the cover part 60 and the dust collecting container 22, between the dust collecting container 22 and the enlarged diameter part 52 of the inner cylinder part 50, between the enlarged diameter part 52 and the filter 37, and between the enlarged diameter part 52 and the cover part 40. Between them, packings are arranged for the purpose of sealing, respectively.

  Inside the inner cylinder 51, a funnel portion 51d is formed at a location close to the opening 51b. The funnel portion 51d serves to prevent fine dust accumulated on the bottom of the inner cylinder 51 from rising due to the airflow flowing into the inner cylinder 51 from the outlet 51a.

  A grip 80 is fixed to the outer surface of the dust collecting container 22 at a position opposite to the hinge portion 60a. The grip 80 extends in the vertical direction, and the entire dust collector 20 can be supported by grasping it with one hand.

  The grip 80 has a shape in which a horizontally long cover portion 82 is formed below the vertical grip portion 81 and the T-shape is inverted. The grip 80 is fixed with screws to a total of four bosses 22b (see FIG. 16) formed on the side surface of the cylindrical portion 22a of the dust collecting container 22.

  Between the grip 80 and the dust collecting container 22, there is disposed a lock device 83 that maintains the lid 60 in the closed state or releases the closed state to open the lid 60. The structure will be described below mainly based on FIG.

The main body of the locking device 83 is two types of sliders sandwiched between the grip 80 and the dust collecting container 22. The first is a vertical slider 84 sandwiched between the grip part 81 and the dust collecting container 22, and the second is a horizontal slider 85 sandwiched between the cover part 82 and the dust collecting container 22.

  The vertical slider 84 is biased upward by a spring (not shown). The upper end of the vertical slider 84 becomes a lock release button 84 a exposed at the upper end of the grip 80.

  The horizontal slider 85 is formed with two horizontal elongated holes 85a through which the lower two of the bosses 22b pass. That is, the lower two bosses 22b also serve to support the horizontal slider 85 so as to be slidable within the length range of the horizontal elongated hole 85a, together with screws of the grip 80.

  The horizontal slider 85 is formed with an engaging portion (not shown) that captures the protrusion 60e formed at the free end of the lid portion 60. The horizontal slider 85 is urged in a direction to capture the projection 60e by a spring (not shown).

  The vertical slider 84 has a cam surface (not shown), and the horizontal slider 85 has a cam follower (not shown) that engages with the cam surface. When the grip 80 is grasped with one hand and the lock release button 84a is pushed down with the thumb of the hand, the cam surface of the vertical slider 84 pushes the cam follower of the horizontal slider 85, and the horizontal slider 85 is pulled back in the direction opposite to the urging force. As a result, the protrusion 60e is released, and the lid 60 is opened as shown in FIG. The lid 60 may have a structure that opens only by gravity, or may have a structure in which a spring that biases the lid 60 in the opening direction is provided on the hinge 60a.

  As shown in FIG. 2, a vertical groove 19 a for receiving the grip 80 is formed on the inner surface of the dust collecting chamber 19. The grip 80 and the groove 19a for receiving it serve as a guide for inserting the dust collector 20 into the dust chamber 19 at a correct angle.

  In order to maintain the dust collector 20 inserted in the dust chamber 19 in the dust chamber 19, a lock device 90 is provided between the main body 2 and the dust collector 20. The locking device 90 is configured as follows.

  A lock member case 91 (see FIG. 6) is formed on the base portion 40a of the cover portion 40 at a location directly above the gear case 32a. A lock member 92 (see FIG. 9) is inserted into the lock member case 91. A claw portion 92a protruding from the lock member case 91 is formed at the lower end of the lock member 92, and a finger hook portion 92b exposed from the window 40c (see FIG. 6) formed on the decorative plate 40b is formed at the upper end of the lock member 91. Yes. The finger hook portion 92b is formed with a recess for receiving the tip of the finger.

  The lock member 92 is urged in a direction in which the claw portion 92a protrudes from the lock member case 91 by a spring (not shown). The claw portion 92 a engages with a lock member receiver (not shown) formed on the inner surface of the dust collection chamber 19 to prevent the dust collector 20 from coming out of the dust collection chamber 19.

  The lock member 92 slides along a straight line extending radially from the center of the handle 41. The straight line L in FIG. 4 is the straight line. The slide locus of the lock member 92 that slides along the straight line L intersects the axis of the input gear 32.

  The lock member 92 is placed at the following position with respect to the handle 41. That is, the lock member 92 and the handle so that the other finger of the one hand can be hooked on the side surface of the handle 41 opposite to the lock member 92 with one finger on the finger hook portion 92b of the lock member 92. A distance of 41 is set. If one finger on the finger hook 92b is a thumb, the other finger on the handle 41 is the index finger, middle finger, ring finger, or little finger, and one finger on the finger hook 92b is the index finger. In the case of any one of the middle finger, the ring finger, and the little finger, the other finger to be hung on the handle 41 is the thumb.

  If one finger is hooked on the finger hook portion 92b of the lock member 92, the other finger of the one hand is hooked on the side surface of the handle 41 opposite to the lock member 92, and the finger hook portion 92b is pulled toward the handle 41. The lock member 92 slides against the urging force of the spring. Since a finger is applied to both the handle 41 and the lock member 92, it is easy to apply force to the finger that operates the lock member 92. In addition, the lock member 92 can be removed from the lock member receiver simply by pulling the finger on the lock member 92 toward the handle 41, and the operability is good.

  If the dust collector 20 is inserted into the dust chamber 19, the claw portion 92a is detached from the lock member receiver. The dust collecting device 20 can be pulled out from the dust collecting chamber 19 by pulling up one hand holding the handle 41 and the finger hooking portion 92b while keeping the force applied to the finger as it is. That is, one-handed handling of the dust collector 20 is possible.

  When inserting the dust collector 20 into the dust chamber 19, it is not necessary to pull the finger hook portion 92 b toward the handle 41. As shown in FIG. 5, the claw portion 92 a has a slope on the lower surface. When the dust collector 20 is pushed down with the slope applied to the upper edge of the dust collection chamber 19, the lock member 92 is automatically retracted. The dust collector 20 is inserted into the dust chamber 19. When the claw portion 92a is lowered to the height of the lock member receiver, the lock member 92 is advanced by an urging force, and the claw portion 92a is engaged with the lock member receiver to prevent the dust collector 20 from coming out of the dust collection chamber 19.

  The dust collecting action by the dust collector 20 is as follows. When the dust collecting device 20 is set in the dust collecting chamber 19 and the hose 3, the extension pipe 4 and the suction port body 5 are connected as shown in FIG. 18 and the electric blower 6 is operated, the dust collecting container 22 is introduced from the inlet 21. Airflow flows into the inside. The airflow flowing into the dust collecting container 22 is represented by an arrow A1 in FIG. The airflow swirls at high speed in an annular space between the inner surface of the dust collecting container 22 and the outer surface of the inner cylinder 51. The swirling airflow is represented by an arrow A2 in FIG. A relatively large amount of dust is separated from the airflow by the centrifugal force generated by the high-speed turning, and accumulates on the bottom of the dust collecting container 22.

  The airflow from which relatively large dust has been separated enters the inner cylinder 51 from the outlet 51a and rises as shown by an arrow A3 and passes through the filter 37. At that time, fine dust in the airflow is collected by the filter 37. The airflow that has been collected and cleaned by the filter 37 flows out from the outlet 24 and is sucked into the electric blower 6. The airflow leaving the electric blower 6 is discharged from the main body 2 through the exhaust port 7.

  When the electric blower 6 is stopped by the operation of the operation unit 14, the dust removal motor 33 is driven for a predetermined time. The rotational force of the dust removal motor 33 is transmitted to the dust removal rotary body 31 via the output gear 33a and the input gear 32, and the dust removal rotary body 31 rotates. As a result, the filter 37 is dedusted, and fine dust attached to the lower surface of the filter 37 falls. Fine dust that has fallen on the enlarged diameter portion 52 of the inner cylinder portion 50 is scraped off to the inner cylinder 51 by the scraper 36 and accumulates at the bottom of the inner cylinder 51. As described above, the rotation of the dust removing rotating body 31 by the dust removing motor 33 is not transmitted to the handle 41.

  When the dust removal rotating body 31 rotates, the inner cylinder 51 also rotates. When the inner cylinder 51 rotates, the dust accumulated on the outer side of the inner cylinder 51 is compressed by the feeding action of the pushing portion 55. When the compressed layer of dust increases in height, the pushing portion 55 receives a reaction force, and the inner cylinder portion 50 and the cover portion 40 are pushed up.

  If no hand is struck against the push-up force, the cover 40 is lifted from the main body 2 and the appearance is impaired. Further, when the input gear 32 is lifted from the output gear 33a of the dust removal motor 33, stress concentrates in a narrow region of the gear teeth, which may cause destruction due to material fatigue.

  However, in the present invention, since the lock member 92 is disposed in the vicinity of the input gear 32, even if the pushing portion 55 receives a reaction force from the dust compression layer, the input gear 32 can be prevented from being lifted, and the output gear can be prevented. The connection between 33a and the input gear 32 is properly maintained. For this reason, even if dust accumulates in the dust collector 20, power transmission from the dust removal motor 33 can be performed without any trouble. The cover part 40 is not lifted from the main body part 2 and the appearance is not impaired.

  In particular, in this embodiment, the lock member 92 slides linearly and engages with the lock member receiver, and the slide locus intersects the axis of the input gear 32. Therefore, the input gear 32 is in the axial direction. It will be pressed down from the bottom, and the prevention of lifting will be realized accurately.

  When dust removal by the dust removal motor 33 is not performed, it is also possible to rotate the handle 41 by hand and perform dust removal by hand force. Also at this time, the inner cylinder 51 rotates, and the pushing portion 55 plays a role of dust compression. The lock member 92 plays a role in preventing the input gear 32 from being lifted.

  When the amount of dust in the dust collecting container 22 increases, the dust collecting device 20 is removed from the dust collecting chamber 19 and the waste is discarded. As described above, the handle 41 and the finger hook portion 92b are grasped with one hand, the lock member 92 is removed from the lock member receiver, and the dust collecting device 20 is pulled out from the dust collecting chamber 19. When the dust collector 20 comes out of the dust collecting chamber 19, the hand is changed from the handle 41 to the grip 80. By grasping the grip 80, the dust collector 20 can be stably transported.

  When the lock release button 84a is pushed down on the garbage disposal place, the lid 60 opens. Since the lock device 83 can be operated with the hand holding the grip 80 to open the lid portion 60, dust can be easily discharged. Further, since the lock release button 84a can be pushed with the thumb of one hand holding the grip 80, the lock release operation is simple. When the lid 60 is opened, both the dust compression layer outside the inner cylinder 51 and the accumulation of fine dust inside the inner cylinder 51 fall.

  If the handle 41 is turned with the lid 60 opened, the dust compression layer is forcibly pushed out by the push-out portion 55. Further, since the dust removing member 31e of the dust removing rotary body 31 strikes the peak portion 37a of the filter 37, fine dust is separated from the filter 37 and falls to a garbage disposal place.

  When the dust is sufficiently discharged from the dust collecting container 22, the lid 60 is closed. The closed state of the lid 60 is maintained by the lock device 83. The dust collecting container 20 in this state is fitted into the dust collecting chamber 19 so that the main body 2 can be used again.

  Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention.

  The present invention is widely applicable to vacuum cleaners.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Main part 3 Hose 4 Extension pipe 5 Suction port 6 Electric blower 19 Dust collection chamber 19a Groove 20 Dust collector 22 Dust collection container 30 Dust removal device 31 Dust removal rotary body 31e Dust removal member 32 Input gear 33 Dust removal motor 33a Output gear 37 Filter 40 Cover part 41 Handle 42 Clutch part 50 Inner cylinder part 51 Inner cylinder 55 Push-out part 60 Lid part 80 Grip part 81 Grip part 83 Lock device 84a Lock release button 90 Lock device 92 Lock member 92a Claw part 92b Finger hook part

Claims (2)

Comprising a body portion forming a dust collecting chamber which is open to the outside with a built-in electric blower and a dust collector to be fitted in the dust collecting chamber of the main body portion is mounted, the dust collecting device includes a filter, wherein a dust removing member for removing dust by vibrating the filter by tapping it against the filter has an outer surface of the dust collecting apparatus, and the rotation is capable handle to cause vibration to the filter, the dust collecting device The lock member and the handle are hung on the lock member with one finger on the lock member and the other finger on the handle . A vacuum cleaner , wherein the dust collecting device maintained by the lock member is released by pulling a finger toward the handle . The vacuum cleaner according to claim 1 , wherein the dust removing member strikes a peak portion of the filter .

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