JP2006247095A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easy-to-use vacuum cleaner where dust collecting performance is improved by effectively removing dust stuck to and stacked in the inside of a dust collection part to suppress reduction of suction air. <P>SOLUTION: The vacuum cleaner is provided with: a cleaner body 12 having a dust collection chamber 27 and an electric blower 22; a cord reel on which a power source cord is wound; a dust collection bag provided in the dust collection chamber for catching dust; and a dust removal means 36 for removing the dust stuck to the dust collection bag 29 when the power source cord is pulled out. The dust removal means 36 has a dust removal plate 35 for adding dust removal action to the dust collection bag 29, and has a cushion member 52 fitted to the dust removal plate 35. Thus, impact force transmitted to the dust collection bag 29 is cushioned by the cushion member to prevent the dust collection bag from being broken or damaged to improve the durability of the dust collection bag to provide the vacuum cleaner where dust collection performance is less likely to be degraded. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner that can prevent a reduction in suction force even if dust accumulates in a dust collecting means.

  Conventionally, as this type of vacuum cleaner, the one described in Patent Document 1 below has been common. This vacuum cleaner will be described with reference to FIG.

  An electric blower chamber 3 containing a suction electric blower 2 is provided behind the vacuum cleaner body 1, and a dust collection chamber 5 containing a dust bag 4 is provided in front of the cleaner body 1. Yes.

  The electric blower chamber 3 and the dust collection chamber 5 are partitioned by a partition wall 6 provided in the cleaner body 1, and adhere to the surface a of the dust collection bag 4 facing the communication port 8 provided in the partition wall 6. A dust removing means 9 for removing dust is disposed in the dust collection chamber 5 of the cleaner body 1.

The dust removing means 9 is configured to strike the surface a with a diaphragm 11 that is vibrated by the control means 10. As a result, when dust is sucked in by the suction air generated by the electric blower 2 and the dust is accumulated in the dust bag 4, the vibration plate 11 strikes and removes the attached dust on the surface a of the dust bag 4. In this way, the air resistance is relaxed and the reduction of the suction force is prevented.
JP-A-5-91962

  However, in the above configuration, the dust removing means 9 in the dust collecting chamber 5 and the arrangement and fixing method of the diaphragm 11 are not clearly disclosed in the cleaner body 1, so the dust removing means 9 gives the dust collecting bag 4. There was a problem that the vibration was not reliably transmitted to the surface a of the dust bag 4 and a reliable and efficient dust removal effect could not be expected. Further, when the diaphragm 11 hits the surface a of the dust collection bag 4, there is a possibility that the dust collection bag 4 may be damaged.

  The present invention is intended to solve the above-described conventional problems, and can reliably and effectively remove the dust deposited and accumulated inside the dust bag and reduce the reduction in suction air without damaging the dust bag. The purpose is to improve the dust collection performance.

  In order to solve the above-mentioned conventional problems, the present invention provides a vacuum cleaner body having a dust collection chamber and an electric blower, a cord reel around which a power cord is wound, and a dust collecting unit provided in the dust collection chamber. A dust collecting bag and dust removing means for removing dust adhering to the dust collecting bag in conjunction with pulling out and / or storing of the power cord, and the dust removing means removes dust from the dust collecting bag. While having a board, it is set as the structure which attaches a cushioning material to the surface of the side which contacts the said dust collection bag of the said dust removal board.

  As a result, the cushioning material provided on the dust removal plate of the dust removal means alleviates the impact force transmitted to the dust collection bag and prevents the dust collection bag from being torn and scratched. As a result, the durability of the dust collection bag is improved. A vacuum cleaner can be provided in which the dust collection performance does not easily deteriorate even if the dust becomes better and continues to collect dust.

  ADVANTAGE OF THE INVENTION This invention can provide the vacuum cleaner which improves the durability of a dust collection bag and improves dust collection performance while removing dust deposited on the inside of a dust collection part efficiently.

  The first invention is a cleaner body having a dust collection chamber and an electric blower, a cord reel around which a power cord is wound, a dust collection bag for dust collection provided in the dust collection chamber, and the power supply A dust removing means for removing dust adhering to the dust collection bag in conjunction with the drawing and / or storage of the cord, and the dust removal means has a dust removing plate for removing dust from the dust collection bag, and the dust removal means. By adopting a structure in which the cushion material is attached to the surface of the plate that contacts the dust bag, the impact force of the dust removing plate hitting the dust bag is reduced, and the dust bag is prevented from being broken and damaged. As a result, vibration can be transmitted to the dust bag while improving the durability of the dust bag, and dust attached to the dust bag can be efficiently removed.

  In the second invention, the cushion material of the first invention is configured to have air permeability, and the dust removing plate is configured in a substantially lattice shape, and the dust collection bag inflated by the suction air of the electric blower is the suction air. Passing from the upstream side to the downstream side of the dust removal plate with the cushioning material attached to its surface, it becomes easy to approach, and the impact force of the dust removal plate hitting the dust collection bag is surely mitigated by the cushioning material As a result, it is possible to prevent the dust bag from being broken and to improve the durability of the dust bag.

  In the third invention, the dust removing plate of the first or second invention is formed in a substantially arc shape, and when the dust collection bag is inflated by the suction air of the electric blower, the dust collection bag has a substantially central portion on the rear surface thereof. The tip of the substantially arc-shaped portion of the dust removing plate is in contact with the dust removing plate, and the dust removing plate is in contact with the substantially central portion of the rear surface of the dust collecting bag through which the most suction air passes and the dust adheres most. It becomes. As a result, the dust removal effect in the dust removal means can be further expanded.

  According to a fourth aspect of the present invention, when the dust bag of the first or second invention is inflated by the suction air of the electric blower, a substantially arc-shaped convex rib that comes into contact with the substantially central portion of the rear surface of the dust bag, It is configured to project on the dust collection bag side of the dust removal plate, and it has a substantially arc shape provided on the dust collection plate and the center of the rear surface of the dust collection bag through which the most suction air passes and dust adheres most. The convex ribs come into contact with each other. As a result, the dust removal effect in the dust removal means can be further expanded.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is an overall perspective view of the electric vacuum cleaner according to the first embodiment of the present invention, FIG. 2 is a plan view of the main body of the vacuum cleaner, FIG. 3 is a sectional view of the main body of the vacuum cleaner, and FIG. The partially cutaway sectional view showing the dust removing means of the vacuum cleaner body is shown. FIG. 5 is a partial sectional view showing the dust removing means of the cleaner body, and FIG. 6 is a front sectional view showing the dust removing means of the cleaner body. FIG. 7: shows the perspective view which showed the dust removal means of the vacuum cleaner main body. FIG. 8 is a partial cross-sectional view showing a dust removing plate of the dust removing means. FIG. 9 is an operation diagram when the dust bag is mounted from the dust chamber.

  1 to 3, the vacuum cleaner main body 12 is connected to an extension pipe 16 via a hand handle 13 and a hose 15 with a hose joint 14, and communicates with a suction tool 17 attached to the extension pipe 16 and sucking dust. is doing. The vacuum cleaner main body 12 includes one front wheel caster 18 and a pair of rear wheels 19 that are pivotally supported.

  As shown in FIG. 3, the vacuum cleaner main body 12 forms an outer shell with a lower main body 20 and an upper main body 21. An electric blower 22 is disposed on the rear side of the cleaner body 12, and the electric blower 22 emits suction air. The front is supported by a first support rubber 23 and the rear is provided with a second support rubber 24. And is supported by the first motor cover 25 and the second motor cover 26, and is mounted and fixed to the lower main body 20.

  A dust collection chamber 27 is formed on the front side of the cleaner body 12, and a dust collection lid 28 is provided above the dust collection chamber 27 so as to be able to open and close the dust collection chamber 27. A dust collection bag 29 for collecting dust is detachably provided in 27.

  A partition wall 31 that partitions the electric blower chamber 30 and the dust collection chamber 27 is provided from the lower main body 20, and a packing 32 is provided above the partition wall 31, and inside the dust collection chamber 27 by the packing 32. Air tightness is ensured to ensure airtightness.

  A communication port 33 is provided in the partition wall 31 in front of the electric blower 22 so that the electric blower 22 and the dust collecting chamber 27 communicate with each other. A main filter 34 for preventing dust from entering the electric blower 22 is disposed in front of the communication port 33.

  Between the main filter 34 and the dust collecting bag 29, dust removing means 36 including a dust removing plate 35 that strikes the dust collecting bag 29 to give vibration is provided.

  The structure of the dust removing means 36 will be described with reference to FIGS.

  One end 38 of the vibration arm body 37 is formed with a rod-shaped support shaft 39 on the dust collection chamber 27 side, and the support shaft 39 is detachably locked to the dust removing plate 35. Further, the vibration arm body 37 is pivotally supported by a shaft 41 of a vibration arm support body 40 provided in the lower main body 20, and is configured to be rotatable in the direction of arrow A as shown in FIG.

  The other end 42 of the vibration arm body 37 has a shape protruding from the partition wall 31 that partitions the electric blower chamber 30 and the dust collection chamber 27 toward the electric blower chamber 30.

  On the other hand, on the side of the electric blower chamber 30, there is disposed a cord winding device 45 having a cord reel 44 that can be wound and stored with a power cord 43 that supplies power to the electric blower 22. The cord reel 44 is also configured to rotate when the storage operation is performed.

  A protruding rib 46 is formed on the cord reel 44, and the other end 42 of the vibration arm body 37 is provided so as to contact the protruding rib 46. In addition, a spring 47 is disposed below the other end 42 of the vibration arm body 37, and the other end 42 of the vibration arm body 37 is urged to face upward. The dust removing plate 35 connected to the one end 38 of the vibration arm body 37 is always urged in the direction of arrow B as shown in FIG.

  The cord reel 44 of the cord winding device 45 is pivotally supported by a partition body 48, and the partition body 48 is rotatably provided with a brake lever 49 that restrains rotation of the cord reel 44 and suppresses release. A brake button 50 that is linked to the brake lever 49 is provided on one end side of the brake lever 49.

  In FIG. 3, L-shaped ribs 51 are formed on the upper and lower ends of the dust removing plate 35 that strikes the dust collecting bag 29 to give vibration, and dust is applied to the electric blower 22 between the L-shaped ribs 51. The filter 52 that prevents the intrusion from entering is locked.

  The operation and action of the dust removing means 36 configured as described above will be described below.

  In FIG. 5, when the power cord 43 is pulled out, the projecting rib 46 formed on the cord reel 44 also rotates. As the projection rib 46 rotates, the other end 42 of the vibration arm body 37 is pressed by the projection rib 46 and rotates in the direction of arrow C shown in FIG. Further, when the cord reel 44 is rotated, the other end 42 of the vibration arm body 37 is released from the pressing of the protruding rib 46 and operates in a shocking direction in the direction B shown in FIG. At this time, the dust removing plate 35 interlocked with the one end 38 of the vibration arm 37 is also subjected to a shocking operation, and the dust collecting bag 29 facing the dust removing plate 35 is struck to remove the dust adhering to the dust collecting bag 29. Can be made. At this time, the filter 52 provided on the dust removing plate 35 that generates shocking action acts as a cushioning material to buffer the force of hitting the dust collecting bag 29, preventing the dust collecting bag 29 from being torn or damaged. To do.

  As a result, the durability of the dust collection bag 29 is improved, and the configuration of the dust removal means 36 can transmit large vibrations to the dust collection bag 29 at a low running cost. Remove dust.

  In FIG. 3, a filter (breathable cushioning material) 52 is between the dust removing plate 35 and the dust collecting bag 29, and the filter 52 is locked to the dust collecting plate 35. .

  As a result, the impact force of the dust removing plate 35 hitting the dust collection bag 29 at a low running cost is surely relieved by the filter 51. As a result, the dust collection bag is hardly broken and the durability of the dust collection bag is improved. Can be made.

  3 and 9, when the dust bag 29 is inflated by the suction air of the electric blower 22, the substantially central portion 53 of the rear rear surface of the dust bag 29 is substantially the center of the communication port 33 of the electric blower 22. Is located. On the other hand, the dust removing plate 35 is formed in an arcuate shape 54, and in this dust removing plate 35, the substantially center 55 of the arcuate shape 54 is disposed so as to hit the substantially central portion 53 on the rear rear surface of the dust collection bag 29. Yes.

  As a result, the portion of the dust bag 29 that is considered to have the most suction air passing through and the most dust is attached is hit, and the dust removing effect of the dust removing means can be further expanded.

  Further, in FIG. 9, the upper end of the dust removing plate 35 is inclined to a tapered shape 56, so that as shown in FIG. 8, when the dust collecting bag 29 is inserted and set in the dust collecting chamber 27, it is formed on the dust removing plate 35. Further, the tapered shape 56 invites the dust bag 29, so that the dust bag 29 can be easily attached and the usability is improved.

  7 and 9, the dust removing plate 35 is provided with an opening 58 formed by a plurality of ribs 57. In addition, the plurality of ribs 57 are inclined at an angle 59 with respect to the suction direction of the electric blower 22.

  Thus, dust attached to the ribs 57 of the dust removing plate 35 slides by its own weight from the ribs 57 inclined obliquely 59, and it is possible to prevent dust from adhering to the dust removing plate 35.

  7 and 9, the dust removing plate 35 is provided with an opening 58 formed by a plurality of ribs 57, and the plurality of ribs 57 are provided on one side of the ribs 57 in the horizontal direction with respect to the floor surface. A standing wall 60 is formed on the wall.

  This prevents fine dust from entering the electric blower 22 and, as a result, improves the durability of the electric blower 22.

  7 and 9, the plurality of substantially arc-shaped convex ribs 61 are formed on the dust collection bag 29 side of the dust removal plate 35, so that when the dust collection bag 29 is inflated by suction air, the dust collection bag 29 will not stick to the dust removing plate 35 and the dust collection performance will not deteriorate. As a result, dust collection performance can be improved with an inexpensive configuration.

  In FIG. 9, a slit 62 is provided on the filter 52 side at a relative position of the convex rib 61 formed on the dust removing plate 35, and the slit 62 of the filter 52 is a convex rib formed on the dust removing plate 35. 61 is inserted and held.

  Thus, the filter 52 and the dust removing plate 35 can be positioned and locked with a simple configuration.

  In FIG. 9, the convex rib 61 formed on the dust removing plate 35 is made of a soft material, so that when the dust removing plate 35 hits the dust collecting bag 29, the dust collecting bag 29 is broken by the convex rib 61. And the durability of the dust bag 29 is improved.

  In FIG. 5, the operating width 63 in which the dust removing plate 35 swings in conjunction with the rotation of the cord reel 44 is changed from 5 mm to 15 mm, so that dust attached to and accumulated in the dust collecting bag 29 can be reliably collected. Dust can be removed effectively, and the initial air volume can be recovered, so that a reduction in suction air can be reduced and dust can be removed efficiently.

  As described above, the vacuum cleaner according to the present invention can effectively remove dust that has adhered to and accumulated in the dust collection bag, and reduces the reduction in suction air without damaging the dust collection bag, Improves dust collection performance and can be used for home and business purposes.

Whole perspective view of the electric vacuum cleaner which shows Embodiment 1 of this invention Top view of the vacuum cleaner body Cross section of the vacuum cleaner body Partially cutaway sectional view showing dust removal means of the vacuum cleaner body Partial sectional view showing dust removing means of the vacuum cleaner body Front sectional view showing dust removal means of the vacuum cleaner body The perspective view which showed the dust removal means of the vacuum cleaner main body Partial sectional view showing the dust removing plate of the dust removing means of the vacuum cleaner body Operation diagram when installing a paper bag from the dust collection chamber of the vacuum cleaner Sectional view of the main part of a conventional vacuum cleaner body

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Vacuum cleaner main body 22 Electric blower 27 Dust collection chamber 29 Dust collection bag 35 Dust removal plate 36 Dust removal means 43 Power cord 44 Cord reel 52 Filter 53 Substrate central part 55 Substrate 56 Tapered 57 Rib 58 Opening 59 Diagonal 60 Standing wall 61 Convex Rib 62 Slit 63 Operating width

Claims (4)

A vacuum cleaner body having a dust collection chamber and an electric blower, a cord reel around which a power cord is wound, a dust collection bag for dust collection provided in the dust collection chamber, a drawer of the power cord and / or A dust removing means for removing dust adhering to the dust collection bag in conjunction with the storage, the dust removal means having a dust removal plate for removing dust from the dust collection bag, and the dust collection bag of the dust removal plate. A vacuum cleaner that has a structure in which a cushioning material is attached to the surface that comes into contact with the vacuum cleaner. 2. The electric vacuum cleaner according to claim 1, wherein the cushion material has air permeability and the dust removing plate is configured in a substantially lattice shape. The dust removal plate is formed in a substantially arc shape, and when the dust collection bag is inflated by the suction air of the electric blower, the tip of the substantially arc-shaped portion of the dust removal plate comes into contact with the substantially central portion of the rear surface of the dust collection bag. The electric vacuum cleaner according to claim 1 or 2 constituted. A configuration in which, when the dust bag is inflated by the suction air of the electric blower, a substantially arc-shaped convex rib that comes into contact with the substantially central portion of the rear surface of the dust bag protrudes toward the dust bag of the dust removing plate; The vacuum cleaner according to claim 1 or 2.

Images