JP2010178879A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a miniaturized and lightened vacuum cleaner capable of efficiently removing dust stuck to the inside of a dust collecting bag, reducing the decline of suction air and improving a dust collecting performance. <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 forming the diaphragm 26 into a circular arc shape, an abutting surface with the dust collecting bag 19 is secured in a wide area, and large vibrations are transmitted to the dust collecting bag 19. The dust stuck and deposited on the inside the dust collecting bag is efficiently removed, the decline of the suction air is reduced and the 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&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 behind the vacuum cleaner main body, and a dust collection chamber with a dust collection bag built in the 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 arranged on the electric blower chamber side, and dust removing means for removing dust adhering to the dust collection 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 constituting the dust removing means is formed in a flat shape, and in order to give sufficient vibration, it is necessary to enlarge the dust removing plate, and the main body of the vacuum cleaner is enlarged. There was a problem that.

  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 above-mentioned conventional problems, the present invention provides an electric blower, a dust collection bag for collecting dust collected by suction air generated by the electric blower, and the dust collection bag and the electric blower. And a vibration plate for removing dust adhering to the dust collection bag by periodically contacting the dust collection bag and applying vibration to the dust collection bag, wherein the vibration plate is in contact with the dust collection bag. The cross section is formed in an arc shape protruding to the dust bag side, and the apex of the arc is located in the center of the suction port of the electric blower. As a result, large vibrations can be transmitted to the dust bag with a large surface area.As a result, dust that has adhered to and accumulated in the dust bag can be efficiently removed, reducing the reduction in suction air and collecting dust. Performance can be improved.

  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 A vibration plate for removing dust adhering to the dust collection bag by periodically abutting on the dust collection bag, and the vibration plate has a dust collection bag with a cross section of the dust removal portion in contact with the dust collection bag It is formed in an arc shape protruding to the side, and the apex of this arc is located at the center of the suction port of the electric blower, and the diaphragm has an arc-shaped contact surface with the dust bag and collects dust with a large surface area. Large vibration can be transmitted to the bag, and as a result, dust attached to the dust bag can be removed reliably and efficiently. It is possible to improve the dust collection performance by reducing the decrease in the amount of dust. Further, by making the vibration plate arc-shaped, the contact area between the vibration plate and the dust collection bag becomes wider, and the accumulated dust attached to the inside of the dust collection bag can be removed more efficiently. Furthermore, by arranging the top of the arcuate arc of the diaphragm on a straight line at the center of the suction port of the electric blower, the suction air of the electric blower is most likely to act on the portion where dust is likely to accumulate, that is, the suction port. Since strong vibration can be applied to the dust adhering to the opposing part, the reduction of the suction air can be further reduced, and the dust collection performance can be improved.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, the diaphragm has a dust collecting bag formed in an arc shape in the left-right direction or the up-down direction with respect to the dust collection bag. Since the accumulated dust adhering to the inside is impacted in the left-right direction or the up-down direction, dust can be removed more efficiently, and the reduction in suction air can be reduced to improve the dust collection performance.

  According to a third aspect of the invention, particularly in the first aspect of the invention, the diaphragm has a spherically shaped dust removal portion that comes into contact with the dust collection bag, so that the contact surface with the dust collection bag can be maximized. .

  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 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 unit 42 that is operated when the power cord 28 is wound up. 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. A contact spring 47 that biases the sliding lever 36 in the direction of the vibration transmitting unit 46 is provided in the vicinity of the contact unit 45.

  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.

  On the other hand, an insertion portion 56 that pivotally supports 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 vibration inserted from an opening 48 provided in the partition wall 23. It is set in the transmission unit 46.

  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. A dust removal portion 58 that applies vibration to the dust collection bag 19 of the diaphragm 26 to remove dust is a contact surface with the dust collection bag 19 and forms a gentle arc shape so as to come into contact with the surface.

  And as shown in FIG. 11, the dust removal part 58 of the diaphragm 26 is formed in the circular arc shape which protruded in the dust bag 19 side, The center 58 of the top 58a of this circular arc, and the suction port 12a of the electric blower 12 Are positioned on the same line in the suction direction. Further, the diaphragm 26 is formed with a recess 59 that can be hooked with a finger or the like 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.

  Further, since a plurality of contact portions 35 are formed, the vibration plate 26 can apply vibrations to the dust collection bag 19 a plurality of times when the power cord 28 is pulled out, so that the number of hits can be increased and the dust removal effect can be expanded. It will be a thing.

  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.

  Here, the dust removing portion 58 is formed in a gentle arc shape so as to come into contact with the surface, is in contact with the dust collection bag 19 in a wide area, and is a portion that opposes the suction port 12a of the electric blower 12 to which dust is most adhered. By placing the vertex of the arc at 19a, a large vibration can be applied to this portion 19a, so that dust can be effectively removed.

  The diaphragm 26 is formed with a recess 59 on which a finger or the like can be hooked during removal, so that the removal can be easily performed.

  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. Similarly, the model can be easily differentiated by simply removing the dust removing means such as the sliding lever 26.

  In the present embodiment, the dust removing portion is a vibration plate formed in an arc shape in the left-right direction, but the effect is the same in the vertical direction, and further, if the dust removing portion is formed in a spherical shape, the area of the contact surface is reduced. It can be enlarged and the effect of dust removal can be further enhanced.

  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 Partial sectional view showing the arrangement of the electric blower and diaphragm of the vacuum cleaner

1 Vacuum Cleaner Body 12 Electric Blower 19 Dust Collection Bag 26 Diaphragm 58 Dust Removal Unit

Claims (3)

An electric blower, a dust collection bag that collects dust collected by 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, and the vibration plate has an arc shape projecting toward the dust collection bag at a cross section of the dust removal portion that contacts the dust collection bag An electric vacuum cleaner that is formed at the center of the suction port of the electric blower. The vacuum cleaner according to claim 1, wherein the diaphragm is formed such that a dust removing portion that comes into contact with the dust collection bag is formed in an arc shape in the left-right direction or the vertical direction with respect to the dust collection bag. The vacuum cleaner according to claim 1, wherein the diaphragm is formed in a spherical shape with a dust removing portion that comes into contact with the dust collection bag.

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