JP2010119495A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner which permits manufacturing cost to be reduced by simplifying a structure to remove dust collected in a filter. <P>SOLUTION: A cyclone dust collector 3 is detachably mounted on a cleaner body, and centrifugally separates air and dust by swirling the air. The cyclone dust collector 3 has a dust cup 7, a cap lid 8, and a cup cover 9. An HEPA filter 34 is arranged between the cup lid 8 and the cup cover 9. The cup cover 9 is provided with a cup button 14 which can be pushed in toward the HEPA filter 34. A dust arrester 11 interlocks with the pushing of the cup button 14 and converts the pushing force of the cup button 14 to a force to vibrate the HEPA filter 34. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner.

  2. Description of the Related Art Conventional vacuum cleaners include a cyclone dust collector that swirls intake air in a cylindrical dust collecting container to separate dust in the intake air (for example, Japanese Patent Application Laid-Open No. 2007-252838 (Patent Document 1)). reference).

  As shown in FIG. 17, the cyclone dust collector has a bottomed cylindrical dust cup 101 having an open upper end, and a cup cover 102 that covers the upper surface of the dust cup 101 and is detachable from the dust cup 101.

  An inner cylinder 103 is disposed in the dust cup 101, and the central axis of the inner cylinder 103 coincides with the central axis of the dust cup 101. The inner cylinder 103 has an outlet 104 a for allowing the air in the dust cup 101 to flow out.

  The cup cover 102 accommodates the filter 105 in a rotatable manner. The filter 105 collects dust in the air that flows out from the outlet 104 a of the inner cylinder 103. Further, a leaf spring-shaped filter dust removing portion 107 made of an elastic body is in contact with the lower surface of the filter 105.

  In addition, an electric motor 106 that rotationally drives the filter 105 is disposed outside the cup cover 102. When the electric motor 106 rotationally drives the filter 105, the filter dust removing unit 107 slides on the lower surface of the filter 105. Thereby, the dust collected by the filter 105 is removed.

However, in the conventional vacuum cleaner, the filter 105 is rotated by the electric motor 106 outside the cup cover 102, so that the structure becomes complicated and the manufacturing cost increases.
JP 2007-252838 A

  Then, the subject of this invention is providing the vacuum cleaner which can simplify the structure which removes the dust collected by the filter, and can reduce manufacturing cost.

In order to solve the above problems, the vacuum cleaner of the present invention is
The vacuum cleaner body,
A cyclone dust collector that centrifuges the air and dust by swirling the air while being detachably mounted on the vacuum cleaner body,
The cyclone dust collector is
A casing,
A filter disposed in the casing;
A button provided on the casing and capable of being pushed into the casing;
Conversion means for converting the pushing force of the button into a force for vibrating the filter.

  According to the vacuum cleaner having the above configuration, when the user pushes the button into the casing, the converting means converts the pushing force of the button into a force for vibrating the filter. Thereby, the said filter vibrates and dust falls from a filter.

  Thus, since the conversion means converts the pushing force of the button into a force for vibrating the filter, for example, an electric motor for rotating the filter need not be arranged outside the casing.

  Therefore, the structure for removing dust collected by the filter can be simplified, and the manufacturing cost can be reduced.

In the vacuum cleaner of one embodiment,
A lock mechanism that locks the cyclone dust collector so that it cannot be detached from the vacuum cleaner body,
The lock of the lock mechanism is released as the button is pressed.

  According to the vacuum cleaner of the said embodiment, since the lock | rock of the said lock mechanism is cancelled | released with pushing of a button, usability becomes favorable.

In the vacuum cleaner of one embodiment,
A handle is provided near the button of the casing.

  According to the vacuum cleaner of the said embodiment, since the said handle is provided in the button vicinity of the casing, the user can push in a button using the finger of the hand with a handle.

  Therefore, the user can remove the cyclone dust collector and remove the dust collected by the filter with one hand.

In the vacuum cleaner of one embodiment,
The conversion means is
A frame including a cam portion formed with a cam surface and rotatable with respect to the filter;
A power transmission member that includes a slider that slides on the cam surface as the button is pressed, and that receives the pressing force of the button to rotate the frame relative to the filter;
And a hitting portion that hits the filter as the frame rotates.

  According to the vacuum cleaner of the said embodiment, when a user pushes in a button, a power transmission member will receive the pushing force of a button and will rotate a frame with respect to a filter.

  As a result, the hitting portion hits the filter as the frame rotates, so that the dust collected by the filter can be reliably removed.

In the vacuum cleaner of one embodiment,
The developed shape of the cam portion is substantially triangular.

  According to the vacuum cleaner of the said embodiment, since the expansion | deployment shape of the said cam part is a substantially triangular shape, formation of a cam part is easy.

  According to the electric vacuum cleaner of the present invention, since the converting means converts the pushing force of the button into the force for vibrating the filter, for example, an electric motor for driving the filter to rotate may not be disposed outside the casing. The structure for removing the dust collected by the filter can be simplified, and the manufacturing cost can be reduced.

  Hereinafter, the vacuum cleaner of this invention is demonstrated in detail by embodiment of illustration.

  FIG. 1 is a schematic cross-sectional view of a vacuum cleaner body 1 of a vacuum cleaner according to an embodiment of the present invention.

  The vacuum cleaner main body 1 of the electric vacuum cleaner incorporates an electric blower 2 and is provided with a suction port 4 on the front end face. One end of a suction hose (not shown) is connected to the suction port 4. Moreover, the cleaner body 1 includes a front wheel 5 and a rear wheel 6 for moving on a floor or the like, and a detachable cyclone dust collector 3.

  FIG. 2 is a schematic vertical sectional view of the cyclone dust collector 3.

  The cyclone dust collector 3 includes a bottomed cylindrical dust cup 7 having an open upper end, a cup lid 8 that is detachably attached to the dust cup 7, closes the upper end opening of the dust cup 7, and the cup lid 8. A cup cover 9 is detachably attached and covers the cup lid 8. A filter unit 10 and a dust removing device 11 are disposed between the cup lid 8 and the cup cover 9. The dust cup 7, the cup lid 8, and the cup cover 9 are examples of casings. The dust removing device 11 is an example of a conversion unit.

  An inlet 15 is provided on the side of the dust cup 7. When the cyclone dust collector 3 is attached to the cleaner body 1, the inlet 15 communicates with the suction port 4 (see FIG. 1). The air that has entered the dust cup 7 from the inlet 15 swirls at high speed in the dust cup 7, and the dust contained in the air is centrifuged. The air separated from the dust enters the inner cylinder 12 from the plurality of outlets 16 and flows toward the filter unit 10.

  The inner cylinder 12 is disposed in the dust cup 7 and has the same central axis as the central axis of the dust cup 7. A plurality of outlets 16 are provided on the peripheral wall of the inner cylinder 12 at predetermined intervals in the circumferential direction. The plurality of outlets 16 are covered with a fine mesh woven with synthetic fibers such as nylon. The lower end of the inner cylinder 12 is connected to the upper end of the dust partition member 13, and the dust partition member 13 is integrated with the inner cylinder 12.

  The dust partition member 13 includes a cylindrical portion 17 whose internal space communicates with a space in the inner cylinder 12, and a wing portion 18 provided on the outer peripheral surface of the cylindrical portion 17 and extending in the central axis direction of the dust cup 7. . The lower end of the cylindrical portion 17 is in contact with the inner surface of the bottom portion of the dust cup 7, so that dust accumulated around the cylindrical portion 17 cannot enter the cylindrical portion 17. Moreover, the upper end part of the cylinder part 17 is formed so that an internal diameter and an outer diameter may become small as it progresses below from an upper end. Thereby, since the inner peripheral surface of the upper end portion of the cylindrical portion 17 is inclined with respect to the horizontal direction, dust from the filter unit 10 can be easily dropped into the lower end portion of the cylindrical portion 17.

  A release lever 19 is attached to the front end of the cup lid 8 so as to be swingable about a central portion 19a. The upper end portion 19b of the release lever 19 is locked to the locking portion of the cup cover 9, while the lower end portion 19c of the release lever 19 is biased radially outward by a coil spring 20. When the lower end portion 19c of the release lever 19 is pushed inward in the radial direction, the release lever 19 swings around the central portion 19a. As a result, the locking of the tip of the release lever 19 is released, and the cup cover 9 can be removed from the cup lid 8.

  The lower end of the cup lid 8 is formed in a conical cylinder shape. Further, a through hole 21 is provided at a substantially central portion in the radial direction of the lower end portion, and an upper end of the inner cylinder 12 is integrally fixed to a peripheral portion of the through hole 21. A wiper device 22 is disposed between the lower end of the cup lid 8 and the filter unit 10.

  The cup cover 9 is provided with a cup button 14 that can be pushed into the dust removing device 11 side. The cup button 14 is biased by the coil spring 23 to the side opposite to the dust removing device 11 side. The cup cover 9 also has an exhaust port 24 for exhausting the air that has passed through the filter unit 10 at the rear end. On the other hand, a handle 25 is provided at the front end of the cup cover 9 so as to be positioned in the vicinity of the cup button 14. The user can easily attach and detach the cyclone dust collector 3 to the cleaner body 1 by holding the handle 25. The cup button 14 is an example of a button.

  In FIG. 2, 26 is a cup packing, 27 is a filter packing, and 28 is a cup cover packing.

  FIG. 3 is a schematic view of the wiper device 22 as viewed from below.

  The wiper device 22 has a bottomed cylindrical base 29 and two arm portions 30, 30 extending from the base 29 in the radial direction. A wiper portion 31 made of a rubber elastic body is attached to the distal end portion of each arm portion 30. When the wiper portion 31 slides on the upper surface (the surface on the side facing the filter unit 10) of the lower end portion of the cup lid 8, dust on the upper surface is dropped into the inner cylinder 12.

  FIG. 4 is a schematic view of the filter unit 10 as viewed from above.

  The filter unit 10 includes a holding cylinder 32, an annular holding frame 33 having an inner diameter larger than the outer diameter of the holding cylinder 32, and an annular HEPA (High Efficiency Particulate Air) filter 34 that has been pleated. Have. The HEPA filter 34 is disposed between the holding cylinder 32 and the holding frame 33 and is integrated with the holding cylinder 32 and the holding frame 33. Since the air flowing from the inner cylinder 12 passes through the HEPA filter 34, dust that could not be removed by the centrifugal separation in the dust cup 7 can be collected in the HEPA filter 34. The HEPA filter 34 is an example of a filter.

  FIG. 5 is a schematic view of the dust removing device 11 as viewed from the side. FIG. 6 is a schematic view of the dust removing device 11 as viewed obliquely from below.

  As shown in FIG. 5 and FIG. 6, the dust removing device 11 includes an annular frame portion 35, a bottomed cylindrical boss portion 36, and a power transmission member 37 that is mostly accommodated in the boss portion 36. , And a plurality of radial connecting rods 38, 38,... For connecting the frame portion 35 and the boss portion 36, and two filter beats 39, 39 disposed between the connecting rods 38. The frame portion 35, the boss portion 36, the connecting rods 38, 38,... And the filter beats 39, 39 are integrally formed with each other. Further, the boss portion 36 is rotatably inserted into the holding cylinder 32 of the filter unit 10 (see FIG. 4). Accordingly, the frame portion 35, the boss portion 36, the connecting rods 38, 38,... And the filter beats 39, 39 can rotate integrally with the filter unit 10. The frame portion 35, the boss portion 36, and the connecting rods 38, 38,... Are examples of the frame body.

  The filter beat 39 includes a fan-shaped plate portion 40 fixed to the connecting rod 38, a coil spring 41 projecting from a recess on the lower surface of the plate portion 40, and a hitting portion 42 attached to the tip portion of the coil spring 41. including. The hitting portion 42 is constituted by a head portion having a spherical surface and a shaft portion that is continuous with the head portion and that fits into a space in the tip portion of the coil spring 41. When the filter beats 39, 39 rotate with respect to the filter unit 10, the head of the hitting portion 42 hits the HEPA filter 34. Thereby, the dust collected by the HEPA filter 34 falls on the cup lid 8.

  FIG. 7 is a schematic view in which a lower section of the boss portion 36 of FIG. 6 is taken so that the inside of the boss portion 36 can be seen.

  Two first cam portions 43, 43 that are continuous with each other in the circumferential direction are provided on the inner peripheral surface of the upper portion of the boss portion 36. Each of the two first cam portions 43 and 43 has a cam surface 44 that slides on a cam surface 47 of the second cam portions 46 and 46 described later (see FIGS. 9).

  FIG. 8 is a schematic view of the power transmission member 37 as viewed obliquely from above. FIG. 9 is a schematic view of the power transmission member 37 as viewed obliquely from below.

  As shown in FIGS. 8 and 9, a gear portion 45 is provided on the upper portion of the outer peripheral surface of the power transmission member 37. Further, two second cam portions 46, 46 connected to each other in the circumferential direction are provided at the lower portion and the center portion of the outer peripheral surface of the power transmission member 37. Each of the two second cam portions 46 and 46 has a substantially triangular shape, and has a cam surface 47 on which the cam surface 44 of the first cam portions 43 and 43 slides (see FIG. 7).

  In addition, two sliders 48 are provided on the inner peripheral surface of the power transmission member 37 at intervals of 180 ° in the circumferential direction. The two sliders 48 and 48 slide on cam surfaces 53 and 53 of third cam portions 52 and 52 described later. The third cam portions 52 and 52 are examples of cam portions, and the cam surfaces 53 and 53 are also examples of cam surfaces.

  The power transmission member 37 is connected and fixed to a connecting member 49 shown in FIG. At this time, the plurality of teeth of the gear portion 45 of the power transmission member 37 mesh with the plurality of teeth of the gear portion 50 of the connection member 49, and the power transmission member 37 is not rotatable with respect to the connection member 49.

  FIG. 10 is a schematic view of the inside of the lower portion of the boss portion 36 as viewed obliquely from above.

  A cylindrical insertion portion 51 is provided in the lower portion of the boss portion 36. Two third cam portions 52, 52 that are continuous with each other in the circumferential direction are provided on the outer peripheral surface of the cylindrical insertion portion 51. Each of the two third cam portions 52 and 52 has a cam surface 53 on which the developed shape has a substantially triangular shape and the sliders 48 and 48 slide.

  Further, as shown in FIG. 11, the outer diameter of the cylindrical insertion portion 51 is set smaller than the diameter of the inner peripheral surface of the power transmission member 37 so that the cylindrical insertion portion 51 can be inserted into the power transmission member 37. ing. When the cylindrical insertion portion 51 is inserted into the power transmission member 37, the sliders 48 and 48 come into contact with the cam surfaces 53 and 53 of the third cam portions 52 and 52.

  FIG. 12 is a schematic vertical sectional view of the cyclone dust collector 3 cut along a vertical plane different from that in FIG. 2.

  The cyclone dust collector 3 is provided with a lock mechanism 54 that locks the cyclone dust collector 3 so that it cannot be detached from the cleaner body 1. The lock mechanism 54 is provided on the inner surface of the cup button 14, a lock rod 55 that is guided by the rib of the cup cover 9 and can move only in the radial direction, a coil spring 56 that urges the lock rod 55 radially outward, It is comprised by the protrusion part 57 which protrudes below. The radially outer end of the lock rod 55, that is, the distal end 55a is inserted into an insertion hole (not shown) provided in the cleaner body 1. In addition, an inclined surface 55c that is inclined with respect to the radial direction is provided at the radially inner end of the lock rod 55, that is, the proximal end 55b. Further, an inclined surface 57a parallel to the inclined surface 55c of the base end portion 55b is provided at the end of the protruding portion 57 on the base end portion 55b side.

  When the cup button 14 is pushed toward the dust removing device 11 against the biasing force of the coil spring 23, the lock rod 55 is caused by the cam action of the inclined surface 55c of the base end portion 55b and the inclined surface inclined surface 57a of the protruding portion 57. Moves radially inward against the urging force of the coil spring 56. Thereby, the front-end | tip part 55a of the said lock rod 55 comes out of the said insertion hole, the lock | rock of the lock mechanism 54 is cancelled | released, and the cyclone dust collector 3 becomes removable from the cleaner main body 1. FIG.

  When the pushing force applied to the cup button 14 disappears, the cup button 14 is pushed up by the urging force of the coil spring 23. Along with this, the cam action between the inclined surface 55c of the base end portion 55b and the inclined surface 57a of the protruding portion 57 is released, and the lock rod 55 moves radially outward by the biasing force of the coil spring. As a result, the tip end portion 55 a of the lock rod 55 protrudes from the cup cover 9. At this time, if the cyclone dust collector 3 is attached to the cleaner body 1, the tip 55 a of the lock rod 55 is inserted into the insertion hole, and the cyclone dust collector 3 cannot be removed from the cleaner body 1. That is, the cyclone dust collector 3 is locked at a predetermined position of the cleaner body 1.

  According to the vacuum cleaner having the above configuration, when the user pushes the cup button 14 toward the dust removing device 11, the connecting member 49 and the power transmission member 37 are lowered together with the cup button 14. At this time, since the power transmission member 37 is lowered without rotating, the two sliders 48 and 48 are lowered without changing the positions in the circumferential direction. Thereby, the sliders 48 and 48 slide on the cam surfaces 53 and 53 of the 3rd cam parts 52 and 52 from the position shown in FIG. 13, and move to the position shown in FIG. Then, the frame portion 35, the boss portion 36, the connecting rods 38, 38,... And the filter beats 39, 39 are caused by the cam action between the sliders 48, 48 and the cam surfaces 53, 53 of the third cam portions 52, 52. The filter unit 10 rotates 180 ° integrally with the filter unit 10. As a result, the hitting portion 42 passes over a plurality of bent portions on the upper side of the HEPA filter 34, and the HEPA filter 34 is hit by the hitting portion 42, so that dust falls from the HEPA filter 34.

  In this way, the user simply pushes the cup button 14 toward the dust removing device 11, and the frame portion 35, the boss portion 36, the connecting rods 38, 38,... And the filter beats 39, 39 rotate integrally with the filter unit 10. Therefore, the electric motor for rotating the frame portion 35, the boss portion 36, the connecting rods 38, 38,... And the filter beats 39, 39 is unnecessary.

  Therefore, the structure for removing dust collected by the HEPA filter 34 can be simplified, and the manufacturing cost can be reduced.

  When the user releases his / her hand from the cup button 14, the connecting member 49 and the power transmission member 37 rise together with the cup button 14. At this time, since the power transmission member 37 rises without rotating, the second cam portions 46 and 46 rise without changing the position in the circumferential direction. Thereby, the positional relationship between the first cam portions 43, 43 and the second cam portions 46, 46 changes from the state of FIG. 15 to the state of FIG. Then, by the cam action of the cam surfaces 44, 44 of the first cam portions 43, 43 and the cam surfaces 47, 47 of the second cam portions 46, 46, the frame portion 35, the boss portion 36, the connecting rods 38, 38,. Further, the filter beats 39 and 39 are rotated reversely by 180 ° integrally with the filter unit 10.

  As described above, when the user releases the cup button 14, the frame portion 35, the boss portion 36, the connecting rods 38, 38,. Therefore, when the cup button 14 is pushed into the dust removing device 11 again, the cam action between the sliders 48 and 48 and the cam surfaces 53 and 53 of the third cam portions 52 and 52 can be obtained.

  Further, since the user simply pushes the cup button 14 into the dust removing device 11 and the lock mechanism 54 is unlocked, the number of steps required to remove the cyclone dust collector 3 from the cleaner body 1 is reduced, and usability can be improved.

  Further, since the handle 25 is provided in the vicinity of the cup button 14 of the cup cover 9, the user can hold the handle 25 and operate the cup button 14 with one hand.

  Therefore, the user can remove the cyclone dust collector 3 and remove the dust collected by the HEPA filter 34 with one hand.

  Further, as the user presses the cup button 14, the sliders 48, 48 of the power transmission member 37 slide on the cam surfaces 53, 53 of the third cam portions 52, 52, so that the filter beats 39, 39 are filtered. Rotates relative to unit 10.

  As a result, the hitting portion 42 of the filter beats 39, 39 hits the HEPA filter 34, so that the dust collected on the HEPA filter 34 can be reliably removed.

  Further, since the developed shapes of the first cam portions 43, 43, the second cam portions 46, 46, and the third cam portions 52, 52 are substantially triangular, the first cam portions 43, 43, the second cam portion 46 are provided. , 46 and the third cam portions 52, 52 can be easily formed by a mold, for example.

  The present invention can be used for a canister type vacuum cleaner, for example, an upright type vacuum cleaner, as in the above embodiment.

FIG. 1 is a schematic cross-sectional view of a vacuum cleaner body of a vacuum cleaner according to an embodiment of the present invention. FIG. 2 is a schematic vertical sectional view of the cyclone dust collector of the vacuum cleaner. FIG. 3 is a schematic bottom view of the wiper device of the vacuum cleaner. FIG. 4 is a schematic top view of the filter unit of the vacuum cleaner. FIG. 5 is a schematic side view of the dust removing device of the vacuum cleaner. FIG. 6 is a schematic bottom perspective view of the dust removing device. FIG. 7 is a schematic bottom perspective view for explaining the structure in the boss portion of the dust removing device. FIG. 8 is a schematic top perspective view of a power transmission member of the dust removing device. FIG. 9 is a schematic bottom perspective view of the power transmission member of the dust removing device. FIG. 10 is a schematic top perspective view for explaining the structure inside the boss portion. FIG. 11 is a schematic top perspective view for explaining the state of the power transmission member in the boss portion. FIG. 12 is another schematic vertical sectional view of the cyclone dust collector. FIG. 13 is a development view for explaining sliding of the slider of the power transmission member. FIG. 14 is a development view for explaining sliding of the slider of the power transmission member. FIG. 15 is a development view for explaining sliding of the cam surface of the first cam portion of the boss portion. FIG. 16 is a development view for explaining sliding of the cam surface of the first cam portion of the boss portion. FIG. 17 is a schematic cross-sectional view of a cyclone dust collector of a conventional electric vacuum cleaner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 3 Cyclone dust collector 7 Dust cup 8 Cup lid 9 Cup cover 14 Cup button 25 Handle 34 HEPA filter 35 Frame part 38 Connecting rod 36 Boss part 37 Power transmission member 42 Striking part 48 Slider 52 3rd cam part 53 Cam surface 54 Lock mechanism

Claims (5)

The vacuum cleaner body,
A cyclone dust collector that centrifuges the air and dust by swirling the air while being detachably mounted on the vacuum cleaner body,
The cyclone dust collector is
A casing,
A filter disposed in the casing;
A button provided on the casing and capable of being pushed into the casing;
A vacuum cleaner comprising: conversion means for converting a pushing force of the button into a force for vibrating the filter. The vacuum cleaner according to claim 1, wherein
A lock mechanism that locks the cyclone dust collector so that it cannot be detached from the vacuum cleaner body,
The vacuum cleaner according to claim 1, wherein the lock of the lock mechanism is released when the button is pressed. The vacuum cleaner according to claim 1 or 2,
A vacuum cleaner, wherein a handle is provided near the button of the casing. In the vacuum cleaner as described in any one of Claim 1 to 3,
The conversion means is
A frame including a cam portion formed with a cam surface and rotatable with respect to the filter;
A power transmission member that includes a slider that slides on the cam surface as the button is pressed, and that receives the pressing force of the button to rotate the frame relative to the filter;
A vacuum cleaner comprising: a hitting portion that taps the filter as the frame rotates. The vacuum cleaner according to claim 4,
An electric vacuum cleaner characterized in that a developed shape of the cam portion is a substantially triangular shape.

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