JP2005304734A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of miniaturizing a cleaner body. <P>SOLUTION: The vacuum cleaner comprises the cleaner body with a dust collection container chamber, a dust collection container 50 detachably mounted in the dust collection container chamber, and an electric blower mounted on the downstream side of the dust collection container chamber. The dust collection container 50 comprises a dust collection container body 53 with an intake 52 communicating with a connection port, a dust separating means 60 for separating dust and air from the dust and air sucked from the intake 52, a dust collection chamber part 55 for reserving the dust separated by the dust separating means 60, a negative pressure chamber 57 for guiding the air separated by the dust separating means 60 to an intake opening of the electric blower, and a handle part 54 mounted on the upper outside of the dust collection container body 53 for carrying the dust collection container body 57. A recess 200 for putting a hand to grip the handle part 54 is formed on the upper part of the dust collection container body 53 facing the handle part 54, and a wall 201a forming the recess 200 straightens air flowing in the negative pressure chamber 57. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner including a dust collecting container that is detachably attached to a vacuum cleaner body.

  2. Description of the Related Art Conventionally, an electric vacuum cleaner in which a dust collecting container is detachably provided on a vacuum cleaner body is known (see Patent Document 1).

  Such a vacuum cleaner includes a vacuum cleaner body having a dust container chamber formed therein, a dust container that is detachably attached to the dust container chamber, and an electric blower provided downstream of the dust container chamber. The dust collecting container comprises: a dust collecting container body; dust separating means for separating dust and air sucked from the suction port into dust and air; and a dust collecting means for collecting the dust separated by the dust separating means. And a dust chamber.

  In such a vacuum cleaner, when the dust is thrown away, the dust collecting container is removed from the main body of the cleaner, and the opening / closing lid on the bottom of the dust collecting container is opened to throw away the dust in the dust collecting chamber. .

By the way, in order to make it easy to remove the dust collecting container from the main body of the vacuum cleaner, a dust collecting container provided with a handle portion has been proposed.
Japanese Patent No. 3460832

  However, in such an electric vacuum cleaner, since a handle part is provided in a dust collecting container, there exists a problem that the vacuum cleaner main body which accommodates a dust collecting container will enlarge.

  The objective of this invention is providing the vacuum cleaner which can attain size reduction of a vacuum cleaner main body.

In order to achieve the above object, a first aspect of the present invention is directed to a vacuum cleaner body in which a connection port communicating with a suction port body is formed and a dust collection container chamber communicating with the connection port is formed therein, and the dust collection container A dust collection container detachably mounted in the chamber; and an electric blower provided downstream of the dust collection container chamber, wherein the dust collection container has a suction port communicating with the connection port The main body, dust separating means for separating dust and air sucked from the suction port into dust and air, a dust collecting chamber for storing dust separated by the dust separating means, and the dust separating means are separated. In a vacuum cleaner having a guide air passage that guides air to a suction opening of the electric blower, and a grip portion that is provided outside the dust collector main body and carries the dust collector main body,
On the outer wall of the dust collecting container body facing the gripping part, a recess is formed into which the hand enters when the gripping part is held,
The wall forming the recess rectifies the air flowing through the guide air passage.

  According to this invention, the vacuum cleaner body can be reduced in size, and the air path resistance of the dust collecting container body can be reduced.

  Embodiments of a vacuum cleaner according to the present invention will be described below with reference to the drawings.

  A vacuum cleaner 10 shown in FIG. 1 includes a vacuum cleaner main body 11 and a dust collecting hose 12 having one end detachably connected to a connection port 10A of the vacuum cleaner main body 11 and a hand operation tube 13 provided at the other end. And an extension pipe 14 that is detachably connected to the hand operation pipe 13 and a suction port body 15 that is detachably connected to the distal end portion of the extension pipe 14. The hand operation tube 13 is provided with an operation portion 13A, and the operation portion 13A is provided with an operation switch 13a.

  The suction port body 15 is formed with a suction chamber (not shown) in which a suction opening (dust suction port) (not shown) for sucking dust is formed on the bottom surface of the suction port body 15, and the suction chamber includes the extension pipe 14 and the dust collecting hose 12. Through the suction port 52 of the dust collecting container 50 (see FIG. 2) provided in the cleaner body 11.

  As shown in FIG. 2, the vacuum cleaner main body 11 includes a main body case 20, a dust collecting container 50 that is detachably mounted in the main body case 20, and a rear portion hinged to the main body case 20 so that the front side is in the vertical direction. And a lid 40 that can be opened and closed.

  A dust collection container chamber 21 in which a dust collection container 50 is detachably mounted is formed on the front side of the main body case 20, and an upper opening 22 of the dust collection container chamber 21 is sealed by the lid body 40. In addition, an electric blower 23 is provided in the lower part of the rear side of the main body case 20, and the suction opening 24 of the electric blower 23 is connected to the rear opening 51 (see FIG. 8) of the dust collecting container 50 (see FIG. 5). It communicates via the air path G.

  A lattice Ga is provided in front of the connection air passage G, and a connection opening Gbc is formed in the lower portion of the rear wall portion Gb of the connection air passage G. The suction opening 24 of the electric blower 23 is connected to the connection opening Gbc. Has been. That is, the electric blower 23 is arranged at a position lower than the height position of the connection port 10A of the cleaner body 11.

  A large number of exhaust holes 25 are formed in the main body case 20, and a large number of exhaust holes 27 are also formed in the rear wheel 26. And the air which the electric blower 23 attracted | sucked from the suction opening 24 and discharged | emitted from the discharge port which is not shown in figure is exhausted from these exhaust holes 25 and 27. FIG.

  The dust collecting container 50 is detachably mounted in the middle of the suction air path from the suction opening of the suction port body 15 to the suction opening 24 of the electric blower 23.

  As shown in FIG. 3, a hole 41 is formed in the lid 40, and a button 42 is provided in the hole 41. The button 42 is urged upward by a spring (not shown) to close the hole 41. When the button 42 is pushed downward against the urging force of the spring as shown in FIG. The dust container chamber 21 is opened and communicated with the outside air.

  The dust container chamber 21 communicates with the suction opening 24 of the electric blower 23 through the connection air passage G when the dust container 50 is not attached.

  A guide tube 43 extending vertically is formed below the hole 41 of the lid 40, and a shaft 44 provided on the lower surface of the button 41 is inserted into the guide hole 43A of the guide tube 43 so as to be movable up and down. 42 can move up and down. Further, a projection 45 is formed on the lower surface of the button 42, and as shown in FIG. 5, the projection 45 abuts on a lever 85 to be described later, and the lever 85 is pushed down when the button 42 is pushed down.

  As shown in FIGS. 6 to 8, the dust collecting container 50 has a dust collecting container body 53 in which a filter mounting portion 58 having a suction port 52 on the front side (left side in FIG. 8) and a rear opening 51 on the rear side is formed. A grip 54 provided on the upper part of the dust container main body 53, a pair of interlocking mechanisms 70, 70 (see FIG. 10) provided on both sides of the dust container main body 53, and the dust container main body 53. Opening / closing mechanism 90 for opening / closing a bottom lid 59 provided to be openable / closable at an opening (discharge port) 53D at the bottom, cover cases 71 and 71 covering each interlocking mechanism 70 and the opening / closing mechanism 90, and vertical movement above the grip 54 It has a bridge-shaped lever 85 and the like that can be arranged. The grip portion 54 extends in the width direction of the cleaner body 11, that is, in a direction orthogonal to the front-rear direction of the cleaner body 11.

  A concave portion 200 is formed in the upper portion of the dust container main body 53, that is, on the outer wall at a position facing the grip portion 54, and the depth of the concave portion 200 is increased on the front side of the concave portion 200 as it goes backward (rightward in FIG. 7). An inclined surface 201 is formed so that the hand is easily inserted into the concave portion 200 when the grip portion 54 is gripped.

  The filter mounting portion 58 is formed in a cylindrical shape having a square cross section, and a pleated filter body P shown in FIG. 9 is detachably mounted in the filter mounting portion 58. The suction port 52 of the dust container main body 53 communicates with the connection port 10A of the cleaner body 10 as shown in FIG.

  The dust container main body 53 has a dust separation part (dust separation means) 60 that separates dust and air sucked from the suction port 52 into dust and air, and stores the dust separated by the dust separation part 60 and also dust. A dust collection chamber portion 55 formed below the separation portion 60, a guide air passage portion 56 for guiding the dust separated by the dust separation portion 60 to the dust collection chamber portion 55, and a dust collection chamber portion 55 And a negative pressure chamber 57 formed integrally therewith.

  The dust separation unit 60 includes a frame body 61 having a plurality of openings 61A and a net filter F1 attached to each opening 61A. The inner side surrounded by the net filter F1 is a trumpet-shaped air passage 62. The air passage 62 extends linearly in the front-rear direction.

  The frame 61 has a front end opening 61 a that is opposed to the suction port 52 and is larger than the diameter of the suction port 52, and a rear end opening 61 b that is substantially the same diameter as the suction port 52.

  The guide air passage portion 56 communicates the rear end opening 61 b of the frame body 62 with the introduction opening 55 d provided at the rear portion of the ceiling wall 55 </ b> A of the dust collection chamber portion 55.

  The negative pressure chamber 57 communicates with the rear opening 51, and a dust separation portion 60 and a guide air passage 56 are formed in the negative pressure chamber 57. The air passage 62 of the dust separation unit 60 communicates with the negative pressure chamber 57 through each opening 61 </ b> A of the frame body 61.

  The inclined wall (outer wall) 201a forming the inclined surface 201 of the concave portion 200 is directed obliquely downward as indicated by the arrow Q1 in the air flowing from the upper opening 61A of the dust separating portion 60 to the negative pressure chamber 57. The negative pressure chamber 57 serves as a guide air passage that guides the air to the suction opening 24 of the electric blower 23 through the rear opening 51 of the dust collecting container 53 and the connection air passage G. ing.

  An opening 55Ha is formed in the rear wall 55H of the dust collection chamber 55, and the inside of the dust collection chamber 55 and the negative pressure chamber 57 communicate with each other through the opening 55Ha, and a filter F2 is attached to the opening 55Ha. .

  An extrusion plate (compression member) 100 is disposed below the ceiling wall 55A of the dust collection chamber portion 55 so as to be movable up and down. The extrusion plate 100 is disposed along the inside of the guide air passage portion 56. A dome-shaped guide wall 101 is integrally formed as shown in FIG.

  Further, the extrusion plate 100 is formed with an opening 102 facing the rear end opening 61b of the dust separation portion 60 and an opening 103 facing the introduction opening 55d of the dust collection chamber portion 55. A blade 110 that is in sliding contact with the filter surface F2a on the upstream side of the filter F2 is attached to the rear edge of the extruded plate 100. Further, rods 104, 104 extending vertically are mounted on both sides of the extruded plate 100, and the extruded plate 100 can be removed from the rods 104, 104.

  As shown in FIG. 11, the rods 104 and 104 are inserted through holes 55f and 55f provided at both ends of the ceiling wall 55A of the dust collection chamber 55 so as to be movable up and down.

  Rack members 105, 105 extending in the vertical direction are provided at the upper ends of the rods 104, 104, and racks 106, 106 are formed on the rack members 105, 105.

  On the other hand, at both ends of the lever 85, as shown in FIG. 10, leg portions 86, which extend downward and are inserted vertically into holes 71A, 71A provided in the cover cases 71, 71 (see FIG. 6). 86 is provided, and racks 72 and 72 are formed on the leg portions 86 and 86, respectively. Further, shafts 87 and 87 projecting downward are provided below the leg portions 86 and 86, and flanges 87F and 87F are formed above the shafts 87 and 87, respectively.

  As shown in FIG. 7, springs S 1 and S 1 are attached to the shafts 87 and 87, and the upper portions of the springs S 1 and S 1 are locked to the flanges 87 F and 87 F, and the lower portions of the springs S 1 and S 1 are the ceiling of the dust collection chamber 55. It is locked to the upper surface of the wall 55A. The lever 85 is biased upward by the biasing force of the springs S1 and S1, and the protrusions 85A and 85A provided at both ends of the lever 85 abut against the lower surfaces of the cover cases 71 and 71, so that the lever 85 is It is regulated not to move upward beyond a predetermined amount.

  As shown in FIG. 10, the interlock mechanism 70 is attached to a rack 72 provided on a leg 86 of the lever 85, a fan-shaped gear 73 meshed with the rack 72, and a shaft 74 of the gear 73 as shown in FIG. The fan-shaped gear 75 and a rack 106 or the like meshed with the gear 75 are configured.

  The gear 73 is rotatably attached to the cover case 71, and the diameter of the gear 75 is set larger than the diameter of the gear 73.

  When the lever 85 is pushed downward against the urging force of the springs S1 and S1, the gears 73 and 73 rotate counterclockwise (in FIG. 9), and together with the gears 73 and 73, the gears 75, 73 are integrally formed. 75 rotates counterclockwise. The racks 106 and 106 move downward together with the rods 104 and 104 by the counterclockwise rotation of the gears 75 and 75.

  Since the diameter of the gear 75 is set to be larger than the diameter of the gear 73, the rods 104 and 104 move downward more than the amount by which the lever 85 is pushed down.

  And the extrusion board 100 is pushed down by the downward movement of the rods 104 and 104.

  As described above, when the lever 85 is pushed down, the push plate 100 is pushed down by the interlocking mechanisms 70, 70.

  As shown in FIGS. 7 and 13, the opening / closing mechanism 90 includes an arm 91 arranged in the vicinity of the interlocking mechanism 70 and capable of moving up and down, and a link member 93 that rotates around a shaft 92 by the vertical movement of the arm 91. Etc.

  The arm 91 is held inside the cover case 71 so as to be movable up and down, and an upper portion 91A of the arm 91 projects upward through a hole 71B provided in the cover case 71 as shown in FIG. The upper portion 91A serves as an operation unit for opening and closing the bottom lid 59. The arm 91 is biased upward by a spring (not shown) so that the operation portion 91A of the arm 91 always protrudes from the cover case 71 as shown in FIG.

  The link member 93 is pivotally supported by a shaft 92 provided on the side wall 55S of the dust collection chamber 55. As shown in FIG. 14, a hook 94 is formed in the lower part of the link member 93, and the bottom cover 59 is not opened by the hook 94 engaging with an engaging portion (not shown) provided on the bottom cover 59. It is like that.

  When the operation portion 91A of the arm 91 is pushed and the arm 91 moves downward against the biasing force of the spring, the link member 93 rotates clockwise as shown in FIG. Is disengaged from the engaging portion of the bottom cover 59, and the bottom cover 59 is opened.

  As shown in FIG. 6, the bottom lid 59 is opened by rotating in the direction of the arrow P1 about the axis line J1 on the left side.

As described above, when the operation portion 91 </ b> A of the arm 91 is pressed, the bottom cover 59 is opened by the opening / closing mechanism 90.
[Operation]
Next, operation | movement of the vacuum cleaner comprised as mentioned above is demonstrated.

  First, as shown in FIG. 2, the dust collecting container 50 is mounted in the dust collecting container chamber 21 of the cleaner body 11, and the dust collecting hose 12 is connected to the connection port 10A of the cleaner body 11 as shown in FIG. At the same time, the suction port body 15 is connected to the hand operation tube 13 via the extension tube 14.

  And if the switch 13a of the operation part 13A of the hand operation tube 13 is operated, the electric blower 23 is driven. By driving the electric blower 23, air is sucked from the suction opening 24 of the electric blower 23, acts on the rear opening 51 of the dust collecting container 50 via the connection air passage G, and further collects via the pleated filter body P. The negative pressure chamber 57 of the dust container 50 becomes negative pressure.

  The negative pressure acts on the air passage 62 of the dust separation 60 through the filter F2 of the dust collection chamber 55 and the dust filter 60 via the net filter F1 of the dust separation unit 60. The dust 50 acts on the dust collecting hose 12, the extension pipe 14 and the suction port body 15 through the suction port 52 of the container 50, and dust is sucked together with air from the suction port body 15.

  The sucked dust and air are sucked into the suction port 52 of the dust collecting container 50 through the extension pipe 14 and the dust collecting hose 12. The dust and air sucked into the suction port 52 are sucked into the air passage 62 of the dust separation unit 60.

  Part of the air sucked into the air passage 62 is sucked into the negative pressure chamber 57 of the dust collecting container 50 through the net filter F1 of the dust separating section 60, and further, the pleated filter body P in the rear opening 51 of the dust collecting container 50. Then, the air is sucked into the suction opening 24 of the electric blower 23 through the connection air passage G.

  At this time, the opening 61A at the top of the dust separator 60 is directed to the rear opening 51 of the dust collecting container 50 through both sides of the guide air passage 56 of the negative pressure chamber 57 as shown by the arrows in FIGS. Since air is rectified by the inclined wall 201a of the recess 200 as shown by the arrow Q1 in FIG. 8 and flows toward the lower part of the pleated filter P having the suction opening 24 (see FIG. 5) of the electric blower 23, The air path resistance of the negative pressure chamber 57 is reduced.

  On the other hand, the dust sucked into the air passage 62 of the dust separator 60 travels straight through the air passage 62 due to its mass rather than air, and is guided by the guide wall portion 101 of the push-out plate 100 to collect the dust collection chamber. It will be introduced into 55. That is, air and dust are separated by the dust separation unit 60, and the separated dust is collected in the dust collection chamber 55.

  Further, the air that has traveled straight through the air passage 62 is guided by the guide wall portion 101 of the extrusion plate 100 and introduced into the dust collection chamber portion 55. The air introduced into the dust collection chamber 55 is sucked into the negative pressure chamber 57 of the dust collection container 50 through the filter F2 on the rear wall 55H of the dust collection chamber 55, and further the rear opening 51 of the dust collection container 50. Then, the air is sucked into the suction opening 24 of the electric blower 23 through the pleated filter body P and the connection air passage G.

  When cleaning is completed, the switch 13a of the operation unit 13A is operated to stop driving the electric blower 23. And the button 42 of the cleaner body 11 is pushed downward. When the button 42 is pushed downward, the lever 85 is pushed downward against the urging force of the springs S1 and S1, as shown in FIGS.

  When the lever 85 is pushed down, the pushing plate 100 is pushed down by the interlocking mechanism 70.

  When the extruded plate 100 is pushed downward, the blade 110 of the extruded plate 100 is brought into sliding contact with the filter surface F2a of the filter F2, and the dust adhering to the filter surface F2a is scraped off. Further, the dust accumulated in the dust collection chamber 55 is compressed by the push-down of the push-out plate 100. For this reason, a large amount of dust can be stored in the dust collection chamber 55.

  When the hand is released from the button 42, the lever 85 returns to the original position by the urging force of the springs S1, S1, and the push plate 100 and the button 42 return to the original position shown in FIG.

  Next, the case where the dust collected in the dust collection chamber 55 is discarded will be described.

  First, the lid 40 of the cleaner body 11 is opened, a hand is put in the concave portion 200 of the dust collection container 50, the grip part 54 is held, and the dust collection container 50 is taken out. Then, when the operation unit 91A shown in FIG. 6 is pressed, the bottom cover 59 is rotated by the opening / closing mechanism 90 in the direction of the arrow P1 about the axis line J1 to be opened.

  Next, when the lever 85 is squeezed together with the grip portion 54, the lever 85 is pushed down toward the grip portion 54 as shown in FIG. 18, and by the depression of the lever 85, as shown in FIG. The extruded plate 100 is pushed down to a position sufficient for discharging dust. As a result, the dust in the dust collecting chamber 55 is pushed downward from the bottom opening of the dust collecting container 50, so that it is easy to throw away the dust.

  If the dust collection container 50 is forgotten to be installed in the dust collection container chamber 21 of the cleaner body 11, the suction opening 24 of the electric blower 23 and the dust collection container chamber 21 of the cleaner body 11 are directly connected via the guide air path G. Communicated. And if the switch 13a of the operation part 13A of the hand operation tube 13 is operated, the electric blower 23 is driven and the dust collection container chamber 21 becomes negative pressure.

  Due to this negative pressure, as shown in FIG. 4, the button 42 of the lid 40 is pushed downward against the urging force of a spring (not shown), and the hole 41 of the lid 40 is opened. Thereby, outside air is introduced into the dust collecting container chamber 21 of the cleaner body 11 through the hole 41, and almost no dust is sucked from the suction port body 15.

  For this reason, the malfunction that the dust attracted | sucked from the suction inlet 15 is attracted | sucked directly to the electric blower 23 can be prevented.

  Further, since the extruded plate 100 can be removed from the rods 104, 104, dust or the like that has entered the extruded plate 100 can be cleaned.

  By the way, since the concave portion 200 is provided on the upper portion of the dust collecting container 53 so that the gripping portion 54 can be easily gripped, the gripping portion 54 is gripped from the position (the upper surface 53M of the dust collecting container main body 53 (see FIG. 6)). The height up to the portion 54) can be reduced. For this reason, it is not necessary to increase the height of the dust container chamber 21 or to increase the height of the lid 40. For this reason, size reduction of the cleaner main body 11 can be achieved.

  Moreover, since the electric blower 23 is provided in the lower part of the cleaner body 11, the cleaner body 11 can be stabilized. Even if the electric blower 23 is provided in the lower part of the cleaner body 11, the connection port 10 </ b> A of the cleaner body 11 is located higher than the position of the suction opening 24 of the electric blower 23. The front side never lifts up.

  Further, even if the height position of the connection port 10 </ b> A of the cleaner body 11 and the suction opening 24 of the electric blower 23 is deviated, the cleaner body 11 is rectified by the inclined wall 201 a of the recess 200 of the dust collecting container 50. It is possible to prevent the wind path resistance from becoming large.

It is the perspective view which showed the external appearance of the electric vacuum cleaner which concerns on this invention. It is the fragmentary sectional view which showed the structure of the cleaner body shown in FIG. It is sectional drawing which showed a part of vacuum cleaner main body which removed the dust collecting container. It is explanatory drawing which showed the state when a button was pushed. It is sectional drawing which showed a part of vacuum cleaner main body equipped with the dust collecting container. It is the perspective view which showed the dust collecting container. It is the perspective view which showed the dust collecting container which removed the cover case. It is sectional drawing which showed the structure of the dust collecting container. It is the fragmentary sectional view which showed the accommodating part of the dust collecting container. It is the perspective view which showed the structure of the interlocking mechanism. It is a cross-sectional view of a dust collecting container. It is the perspective view which showed a part of structure of the interlocking mechanism. It is explanatory drawing which abbreviate | omitted a part of dust container and showed the interlocking mechanism. It is explanatory drawing which showed the opening / closing mechanism. It is explanatory drawing which showed the state which pressed the button. It is explanatory drawing which showed the state by which the lever was pushed down. It is explanatory drawing which showed the state which the lever was pushed down and the extrusion plate moved below. It is a longitudinal cross-sectional view of the dust collecting container which showed the state which the extrusion plate moved below. It is the top view which deleted a part of upper part of a dust collecting container. It is the rear view which showed the dust collecting container.

Explanation of symbols

50 Dust Collection Container 53 Dust Collection Container Body 54 Grip Part 55 Dust Collection Chamber 57 Negative Pressure Chamber (Guiding Airway)
60 Dust separating means 200 Recessed portion 201a Inclined wall (wall)

Claims (3)

A vacuum cleaner body in which a connection port communicating with the suction port body is formed and a dust collection container chamber communicating with the connection port is formed inside; a dust collection container detachably attached to the dust collection container chamber; An electric blower provided on the downstream side of the dust container chamber, wherein the dust container is configured to collect a dust container body having a suction port communicating with the connection port, and dust and air sucked from the suction port. Dust separating means for separating dust and air, a dust collecting chamber for storing dust separated by the dust separating means, and a guide air passage for guiding the air separated by the dust separating means to the suction opening of the electric blower And a vacuum cleaner that is provided outside the dust container main body and has a grip portion for carrying the dust container main body,
On the outer wall of the dust collecting container body facing the gripping part, a recess is formed into which the hand enters when the gripping part is held,
The vacuum cleaner characterized by the wall which forms this recessed part rectifies | straightens the air which flows through the said guide air path. There is a grip on the upper part of the dust container body,
The vacuum cleaner according to claim 1, wherein a suction opening of the electric blower is located at a position lower than the suction port.   The vacuum cleaner according to claim 1, wherein the grip portion extends in a width direction orthogonal to the front-rear direction of the vacuum cleaner body.

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