JP5272766B2 - Electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of efficiently removing dust stuck and deposited inside a dust collecting bag. <P>SOLUTION: The vacuum cleaner includes a cord reel 29 around which a power cord 28 is wound, and a dust removing means 27 for removing the dust stuck to the dust collecting bag 19 for catching the dust. The dust removing means 27 includes a sliding lever 36 to be periodically slid in association with the cord reel 29 to be rotated when the power cord 28 is pulled out and/or housed, and a diaphragm 26 periodically operated in association with the sliding lever 36 to vibrate the dust collecting bag 19. By providing the turning shaft 59 of the diaphragm 26 on the center part of the diaphragm 26, vibrations are added on a plurality of abutting surfaces with the dust collecting bag 19, thereby allowing efficient removal of the dust stuck and deposited inside the dust collecting bag. Thus, the decline of suction air is reduced, and a dust collecting performance is improved. Further, the dust removing means 27 is configured to be compact and a cleaner body 1 is miniaturized and made light in weight. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

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.

In this type of conventional vacuum cleaner, an electric blower chamber with a built-in suction electric blower is provided at the rear of the vacuum cleaner main body, and a dust collection chamber with a dust bag is built in front of the vacuum cleaner main body. Is provided. In addition, a power cord for supplying power to the electric blower and a cord reel for winding the power cord are disposed on the electric blower chamber side, and dust removing means for removing dust adhering to the dust collecting bag It has. The dust removing means includes a vibration arm body and a dust removing plate that interlocks with one end of the vibration arm body and applies vibration to the dust collection bag, and the other end of the vibration arm body is connected to the power cord. At the time of pulling out or at the time of storing the power cord, it engages and swings with the protruding rib formed on the rotating cord reel, and the dust removing plate swings in conjunction with it (for example, patent) Reference 1).
JP 2006-192045 A

  However, in the above configuration, the dust removing plate and the dust collecting bag are in contact with each other on the one surface because the rotating shaft is provided at the lower end of the dust removing plate that constitutes the dust removing means. There was a problem that the vibration applied to was not sufficient.

  The present invention solves the above-mentioned problem and aims to improve the dust collection performance by reducing dust sucked down and reliably reducing dust that adheres and accumulates inside the dust collection bag. The purpose is to reduce the size and weight of the vacuum cleaner body.

In order to solve the conventional problems, an electric vacuum cleaner of the present invention includes an electric blower, a dust collection bag for collecting dust collected by suction air generated by the electric blower, the dust collection bag, and the electric blower. A vibration plate that periodically abuts against the dust bag and applies vibration to remove dust adhering to the dust bag, and the vibration plate is substantially horizontal at the center. The rotating shaft has a bent shape in which upper and lower ends are inclined toward the dust bag with the rotating shaft as a boundary. It is configured to apply vibration by alternately contacting the upper and lower surfaces of the rear surface of the dust bag. Since the vibration plate is alternately in contact with the dust bag on two surfaces, it can transmit a large vibration to the dust bag. As a result, it is possible to efficiently remove the dust adhering to the inside of the dust bag and reduce the suction air. It is possible to improve the dust collection performance so small is.

  The present invention can efficiently remove dust deposited and accumulated inside a dust collection bag, can reduce the reduction of suction air and improve dust collection performance, and can be reduced in size and weight. Can be provided.

1st invention is located between the said dust collection bag and the said electric blower, the dust collection bag which collects the dust collected by the electric blower, the suction air which the said electric blower emits, and the said dust collection bag And a vibration plate for removing dust adhering to the dust collection bag by applying a vibration by periodically contacting the vibration collection plate, the vibration plate having a horizontal rotation shaft at a substantially center, and the rotation plate. the boundary of shaft has upper and lower ends is formed in the bent shape inclined to the dust bag side, by turning about said pivot axis, in contact alternately the upper and lower surfaces of the dust collecting bag rear Since the diaphragm is in contact with the dust bag alternately on two sides, a large vibration can be transmitted to the dust bag. Dust adhering and accumulating can be removed efficiently, and the dust collection performance can be improved by reducing the decrease in suction air.

According to a first aspect of the present invention , the diaphragm has a horizontal rotation shaft, and rotates around the rotation shaft so as to alternately contact the upper and lower surfaces of the rear surface of the dust bag to vibrate. With this configuration, more effective dust removal can be performed by alternately applying vibrations in the vertical direction.

Further, in the first invention , the vibration plate has a bent shape in which the upper and lower ends are inclined toward the dust bag with the rotation axis as a boundary, and can transmit a large vibration to the dust bag. The accumulated dust adhering to the inside of the can can be removed more efficiently, and the reduction in suction air can be reduced to improve the dust collection performance.

According to a second aspect of the invention, in particular, in the first aspect of the invention, the diaphragm is arranged with the rotation shaft below the center of the diaphragm, so that the dust collection bag can be easily taken out from the dust collection chamber. This prevents tearing of the dust bag.

  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)
A first embodiment of the present invention will be described with reference to FIGS.

  The vacuum cleaner main body 1 is connected to an extension pipe 5 via a hand handle 2 and a hose 4 with a hose joint 3, and communicates with a suction tool 6 that is attached to the extension pipe 5 and sucks dust. Moreover, the cleaner body 1 includes a caster 7 on the front bottom surface and a pair of rollers 8 on the rear side surface so as to be rotatable.

  In the vacuum cleaner main body 1, a lower case 9 and an upper case 10 constitute an outer shell, and the upper case 10 includes a handle portion 11 that is gripped when carried. An electric blower 12 is disposed on the rear side of the vacuum cleaner main body 1, and the electric blower 12 emits suction air. The front is supported by a front anti-vibration rubber 13 and the rear is provided with a rear anti-vibration rubber 14. And is supported by the motor case 15 and the motor cover 16 and is fixed to the lower case 9.

  A dust collection chamber 17 is formed on the front side of the cleaner body 1, and a dust collection lid 18 is provided above the dust collection chamber 17 so as to open and close the dust collection chamber 17. A dust collection bag 19 that collects dust is detachably provided in 17.

  The dust collection lid 18 is provided with a storage portion 20 for storing attachments such as gap nozzles, and a storage lid 21 covering the storage portion 20 is pivotally supported so as to be freely opened and closed.

  A partition wall 23 that partitions the electric blower chamber 22 that houses the electric blower 12 and the dust collection chamber 17 is provided in the lower case 9, and a packing 24 is provided above the partition wall 23. Thus, air tightness is secured in the dust collection chamber 17 to ensure airtightness.

  A communication port 25 is provided in the partition wall 23 in front of the electric blower 12 so that the electric blower 12 and the dust collecting chamber 17 communicate with each other.

  Between the partition wall 23 and the dust bag 19, dust removing means 27 including a vibration plate 26 that strikes the dust bag 19 and applies vibration is provided.

  On the electric blower chamber 22 side, a cord winding device 30 including a cord reel 29 that can be wound and stored with a power cord 28 that supplies electric power to the electric blower 12 is disposed. The cord reel 29 is also rotated by the storage operation. A substantially circumferential rib body 31 is formed on the cord reel 29. A plurality of rib bodies 31 are formed in a shape connected to both ends of the projecting rib 32 formed on the cord reel 29, and the cord reel Arranged inside the outer periphery of the reel 29. The cord reel 29 of the cord winding device 30 is pivotally supported by a partition wall 33, and a rotating lever 34 that stops and releases the rotation of the cord reel 29 is pivotally supported by the partition wall 33. Yes.

  The rotary lever 34 is provided with a contact portion 35 that is in contact with the protruding rib 32 formed on the cord reel 29 in a substantially arc shape, and a sliding operation for sliding a sliding lever 36 that applies vibration to the diaphragm 26 is provided. A contact release portion 38 that releases contact between the portion 37 and the protruding rib 32 is formed. The abutting portion 35 and the protruding rib 32 are configured to abut through a window portion 39 opened in the partition wall 33. The abutment portion 35 is provided with a wear prevention body 40 made of a metal material such as a screw for preventing wear due to contact with the protruding rib 32.

  Further, a contact spring 41 that biases the rotation lever 34 in a direction in which the contact portion 35 contacts the rib body 31 or the protruding rib 32 is provided in the vicinity of the sliding operation portion 37. Above the rotation lever 34 is provided with an operation portion 42 that is operated when winding the power cord 28, and the operation portion 42 is interlocked with the rotation lever 34 and has a brake release portion 43 that releases the rotation restraint of the cord reel 29. It is formed and urged upward of the cleaner body 1 by the operation portion spring 44.

  The sliding lever 36 has a contact portion 45 that contacts a sliding operation portion 37 provided on the rotating lever 34 at one end, and a vibration transmission portion 46 that applies vibration to the diaphragm 26 at the other end. In the vicinity of the contact portion 45, a contact spring 47 that biases the sliding lever 36 in the direction of the vibration transmitting portion 46 is provided.

  The partition wall 23 is provided with an opening 48 through which the sliding lever 36 passes, and the sliding lever 36 is provided with an engaging groove 49, and the cover member 51 having the engaging portion 50 is formed in the engaging groove 49 and the opening 48. Holding and fixing. The cover member 51 has a flange-like convex portion 52 formed on the outer periphery, and is made of a soft material such as rubber.

  The partition wall 33 is formed with an inclination prevention rib 53 for preventing the inclination of the sliding lever 36 during operation, and a cover body 54 that covers the rotation lever 34 and the sliding lever 36 is held and fixed.

  The cover body 54, like the partition wall body 33, forms a bearing portion that pivotally supports the rotation lever 34, holds the contact spring 41 that biases the rotation lever 34, and biases the sliding lever 36. The contact spring 47 is held. Further, the cover body 54 is surrounded by a holding rib 55 formed in the upper case 10.

  The diaphragm 26 includes a horizontal rotation shaft 59 at the center, and is formed in a bent shape with the upper and lower ends inclined toward the dust bag 19 with the rotation shaft 59 as the center. In addition, the diaphragm 26 is formed in a lattice shape, and is configured such that the suction air of the electric blower 12 can pass therethrough.

  On the other hand, an insertion portion 56 for supporting the rotating shaft 59 of the diaphragm 26 is provided from the case 9 in front of the communication port 25 provided in the partition wall 23 in the dust collecting chamber 17, and an opening provided in the partition wall 23. It is set on the vibration transmission part 46 inserted from the part 48.

  The diaphragm 26 is provided with a diaphragm operating portion 57 that receives vibration from the sliding lever 36 and can be detachably engaged.

  The abutting portion 35 formed on the rotating lever 34, the sliding lever 36, and the diaphragm operating portion 57 formed on the diaphragm 26 are arranged on a substantially straight line.

  The dust removal portion 58 that applies vibration to the dust collection bag 19 of the vibration plate 26 and removes the dust has a shape without sharp corners to prevent the dust collection bag from being broken. Further, since the vibration plate 26 is provided with a rotation shaft 59 substantially at the center, the vibration plate 26 is rotated by using the rotation shaft as a fulcrum, thereby vibrating by alternately contacting the upper and lower surfaces of the rear surface of the dust bag 19. Can be added and dust can be removed effectively. The diaphragm 26 is formed with a recess 60 on which a finger or the like can be hooked when removed.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the power cord 28 is pulled out, the protruding rib 32 formed on the cord reel 29 also rotates. When the contact portion 35 rides on the protruding rib 32, the rotating lever 34 rotates and the sliding operation portion 37 moves. The sliding operation portion 37 pushes the contact portion 35 of the sliding lever 36, and the sliding lever 36 slides rearward of the cleaner body 1. The diaphragm 26 engaged with the slid vibration transmission portion 46 is inclined rearward of the cleaner body 1.

  When the contact portion 35 passes over the protruding rib 32, the rotation lever 34 rotates with an impact force, and when the contact portion 35 returns to the original position, the pressing force of the rotation lever 34 disappears, so that the slide lever 36 has a contact spring 47. The diaphragm 26 is quickly slid by the urging force, and in conjunction with it, the diaphragm 26 moves with an impact force toward the dust bag 19 and can apply a large vibration to the dust bag 19, so that the dust bag 19 It is possible to efficiently remove dust adhering to and accumulating in the interior of the chamber, and it is possible to improve the dust collection performance by reducing the decrease in suction air.

  Since the contact portion 35 is formed vertically, the diaphragm 26 can apply vibration to the dust bag 19 when the power cord 28 is pulled out. Compared to, the number of hits is doubled. In addition, since the hitting cycle is shortened, the frequency of vibration can be increased and the dust removal effect can be expanded.

  Since the abutting portion 35 of the sliding lever 36 is shaped to abut the sliding operation portion 37 formed on the rotating lever 34 in the backward direction, the rotating operation of the rotating lever 34 can be smoothly converted into a horizontal operation, Since it can be smoothly interlocked with the operation of the sliding operation unit 37, the dust adhered and accumulated inside the dust bag 19 can be efficiently removed.

  The rotating lever 34 is pivotally supported in the vicinity of the cord reel 29, and an abutting portion 35 formed on the rotating lever 34, a sliding lever 36, and a diaphragm operating portion 57 formed on the diaphragm 26 are substantially configured. Since it arrange | positions on the straight line, dust removal operation | movement can be transmitted in the shortest distance. As a result, the dust removing means 27 can be configured in a compact manner, and the vacuum cleaner body 1 can be reduced in size and weight.

  The rib body 31 formed on the cord reel 29 is formed in a shape connected to both ends of the projecting rib 32, is disposed inside the outer periphery of the cord reel 29, and the contact portion 35 of the rotary lever 34 is formed in a substantially arc shape. Therefore, when the cord reel 29 rotates, the operation of the contact portion riding on the protruding rib 32 is smooth, and as a result, noise during dust removal can be reduced.

  In addition, since the wear preventing body 40 for preventing wear is provided on the contact portion 35 with a metal material such as a screw, it is possible to prevent abrupt wear and to maintain a durable and comfortable cleaning.

  When the operation unit 42 is operated during winding of the power cord 28, the brake release unit 43 operates the contact release unit 38 of the rotation lever 34, and the rotation lever 34 rotates. Immediately after the contact portion 35 of the rotation lever 34 moves away to a position where it does not contact the protruding rib 32, the rotation of the cord reel 29 is released and the power cord 28 is wound up. As a result, when the power cord 28 is wound, it can be smoothly wound without generating extra load or noise, and the usability can be improved.

  Since the brake release part 43 formed in the operation part 42 is formed inside the operation part 42, it can be formed in the same size as the conventional operation part 42, and the main body is enlarged by adding functions. Can be prevented and comfortable cleaning can be performed.

  As shown in FIG. 10, when it is desired to remove dust when the power cord 28 is not pulled out, when the operation unit 42 is pushed down, the brake release unit 43 comes into contact with the contact release unit 38 formed on the rotating lever 34 and rotates. The moving lever 34 rotates, the sliding operation part 37 moves, the sliding operation part 37 pushes the contact part 35 of the sliding lever 36, and the sliding lever 36 slides to the back of the cleaner body 1. The diaphragm 26 engaged with the slid vibration transmission portion 46 is inclined rearward of the cleaner body 1. Subsequently, when the hand is released from the operation unit 42, the contact of the brake release unit 43 with the contact release unit 38 is released by the elastic force of the operation unit spring 44, and the rotation lever 34 is elasticized by the contact spring 41. When the rotating lever 34 is rotated with an impact force and returns to its original position, the pressing force of the rotating lever 34 is lost, so that the sliding lever 36 slides quickly by the biasing force of the contact spring 47 and interlocks with the diaphragm. 26 can move toward the dust bag 19 with an impact force, and can apply a large vibration to the dust bag 19, so that the dust bag 19 can be removed to a satisfactory extent and comfortable. Can be cleaned.

  Even if the sliding lever 36 operates between the electric blower chamber 22 and the dust collecting chamber 17 having a pressure difference, the covering member 51 covers the engaging groove 49 of the sliding lever 36 and forms a convex portion 52 shape on the outer periphery. And since it is held by the partition wall 23, it can be securely held and fixed to the opening 48 formed in the partition wall 23, and even if an external force other than normal use is applied, it will not come off or be displaced. The airtightness in the dust collection chamber 17 is always ensured and can be smoothly transmitted to the diaphragm 26 without hindering the operation of the sliding lever 36.

  Since the covering member 51 is formed of a soft material such as rubber and is engaged with the engaging groove 49 of the sliding lever 36, the covering member 51 can be smoothly transmitted to the diaphragm 26 without hindering the operation of the sliding lever 36. The dust deposited and deposited inside the dust bag 19 can be efficiently removed.

  Since the movable range of the diaphragm operating portion 57 is narrower than the movable range of the sliding lever 36, even if the dust bag 19 spreads out and the diaphragm 26 is pressed backward, the sliding lever can be pulled by the power cord 28 or the like. Since 36 slides in the front-rear direction, vibration can be applied to the diaphragm 26 and dust can be sucked in until the dust bag 19 is full.

  Since the diaphragm 26 is provided with the rotation shaft 59 in the center, it can abut against the dust bag 19 on the upper and lower surfaces to apply vibrations, so that dust can be removed effectively. The diaphragm 26 is formed with a recess 60 on which a finger or the like can be hooked during removal, so that the removal can be facilitated.

  Since the diaphragm 26 is detachable from the lower case 9, the model can be easily differentiated with or without a dust removing mechanism without attaching the diaphragm 26 when selling an inexpensive vacuum cleaner.

  As described above, the vacuum cleaner according to the present invention can effectively remove dust deposited and accumulated inside the dust collection bag, and can reduce the reduction in suction air and improve the dust collection performance. Since it can be reduced in size and weight, it is particularly useful for vacuum cleaners for home use and business use.

Whole perspective view of the electric vacuum cleaner which shows Embodiment 1 of this invention Central sectional view of the vacuum cleaner Overall perspective view of the vacuum cleaner without the dust cover Partial sectional view of the vacuum cleaner The whole perspective view which removed the partition body and the cover body from the dust removal means of the vacuum cleaner Right side view of the vacuum cleaner with the bulkhead and cover removed from the dust removal means Partial sectional view showing a part of the dust removing means of the vacuum cleaner Perspective view of parts around the operation part of the vacuum cleaner Left side view showing a state where the contact portion of the vacuum cleaner has completely ridden on the protruding rib Left side view showing a state in which the contact portion of the vacuum cleaner passes over the protruding rib

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner body 12 Electric blower 19 Dust collection bag 26 Diaphragm 59 Rotating shaft

Claims (2)

An electric blower, a dust collection bag that collects dust collected by the suction air generated by the electric blower, and a dust collection bag that is positioned between the dust collection bag and the electric blower and periodically contacts the dust collection bag. A vibration plate for removing dust adhering to the dust collection bag by applying vibration to the dust collection bag, the vibration plate having a horizontal rotation shaft at a substantially central position, and being vertically moved with the rotation shaft as a boundary. An end is formed in a bent shape inclined toward the dust bag side , and is configured to apply vibration by alternately contacting the upper and lower surfaces of the rear surface of the dust bag by rotating about the rotating shaft. Electric vacuum cleaner. The vacuum cleaner according to claim 1 , wherein the diaphragm has a rotation shaft disposed below the center of the diaphragm.

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