JP4867646B2 - Vacuum cleaner - Google Patents

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 cord reel is configured such that the dust removing means includes a configuration in which the vibration arm body is pivotally supported on the bottom surface of the cleaner body, and a configuration in which the vibration arm body and the protrusion rib of the cord reel are prevented from contacting Since it must be constructed over a wide range from the lower part to the dust collection chamber and the brake button, there has been a problem that the main body of the vacuum cleaner becomes large.

  SUMMARY OF THE INVENTION The present invention solves the above-described problem, and is a vacuum cleaner that can reliably and effectively remove dust that has adhered to and accumulated in the inside of a dust collection bag, and that can reduce the reduction in suction air and improve dust collection performance. The purpose is to reduce the size and weight of the main body.

  In order to solve the above-described conventional problems, the present invention provides an electric blower that generates suction air, an electric blower chamber that houses the electric blower, a cord reel around which a power cord is wound, and a dust collection bag that collects dust. And a dust removing means for removing dust attached to the dust collecting bag provided in a dust collecting chamber for storing the dust collecting bag, wherein the dust removing means is used when the power cord is pulled out and / or the power cord is stored. Sometimes, it comprises a sliding lever that slides in conjunction with the rotation of the cord reel, and a diaphragm that operates in conjunction with the sliding lever and vibrates the dust bag, the electric blower chamber and the An opening for passing the sliding lever is provided in a partition wall that partitions the dust collecting chamber, and a covering member that is positioned between the sliding lever and the diaphragm and is held and fixed to the opening is provided. The part bends in conjunction with the sliding lever It is configured to operate and to ensure airtightness in the dust collection chamber, can transmit large vibrations to the dust collection bag, and as a result, dust attached to the dust collection bag can be reliably and efficiently removed. Therefore, it is possible to efficiently remove dust that has adhered to the inside of the dust bag and to reduce the reduction in suction air and improve dust collection performance. Since the moving shaft configuration is not required, the dust removing means can be configured compactly, and the vacuum cleaner body can be reduced in size and weight.

  Further, even if the sliding lever operates between the electric blower chamber and the dust collection chamber having a pressure difference, the cover member is held by the partition wall, so that airtightness in the dust collection chamber can be ensured.

  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.

  According to a first aspect of the present invention, there is provided an electric blower that generates suction air, an electric blower chamber that houses the electric blower, a cord reel around which a power cord is wound, a dust collection bag that collects dust, and the dust collection bag. A dust removing means provided in the dust collecting chamber for removing dust adhering to the dust collecting bag, wherein the dust removing means rotates the cord reel when the power cord is pulled out and / or when the power cord is stored. A partition wall that partitions the electric blower chamber and the dust collection chamber by a sliding lever that slides in conjunction with the sliding lever and a diaphragm that operates in conjunction with the sliding lever and applies vibration to the dust collection bag Provided with an opening through which the sliding lever passes, and a cover member positioned between the sliding lever and the diaphragm and held and fixed to the opening. A part of the cover member is interlocked with the sliding lever. And the dust collection It is configured to ensure airtightness inside, and when the power cord is stored or pulled out, the cord reel rotates, and the sliding lever periodically slides in conjunction with it, so that the sliding lever becomes a covering member The vibration plate can be vibrated through the air and the vibration plate can strike the dust collection bag and apply a large vibration to the dust collection bag. Dust can be removed, and the dust collection performance can be improved by reducing the drop in suction air.Since the sliding lever only slides and does not rotate, there is no need for a rotating shaft configuration. The vacuum cleaner body can be reduced in size and weight.

  Further, even if the sliding lever operates between the electric blower chamber and the dust collection chamber having a pressure difference, the cover member is held by the partition wall, so that airtightness in the dust collection chamber can be ensured.

  In the second invention, in addition to the first invention, the covering member is made of a soft material such as rubber, and since the covering member is made of a soft material, the operation of the sliding lever is not hindered smoothly. The dust accumulated on the inside of the dust bag can be efficiently removed.

  According to a third invention, in addition to the second invention, the cover member is formed in a shape that covers the slide lever, and a press-fit fixing portion that is press-fitted and fixed to the slide lever is provided at the tip thereof. Since the cover is covered with a cover member, airtightness in the dust collection chamber can be easily secured, and when the slide lever is operated, the press-fit fixing portion is interlocked with the slide lever so that the diaphragm can be smoothly moved. It is possible to efficiently remove dust deposited on and accumulated in the dust bag.

  In the fourth aspect of the invention, in addition to the third aspect of the invention, the thickness of the tip portion of the covering member that comes into contact with the diaphragm is made larger than the peripheral thickness. Even if the tip part of the member and the diaphragm come into contact with each other and the tip part is worn to some extent, it is not broken and does not make a hole, so that the airtightness in the dust collecting chamber can always be ensured.

  In the fifth invention, in addition to the fourth invention, a convex portion is formed on the outer periphery of the covering member, and the holding and fixing to the opening formed in the partition wall can be ensured, and an external force other than normal use is applied. Even if it does not come off or shift in position, the air tightness in the dust collection chamber is always secured, it can be smoothly transmitted to the diaphragm without obstructing the operation of the sliding lever, and it adheres to the inside of the dust collection bag. The accumulated dust can be efficiently removed.

  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 brake lever 34 that stops and releases the rotation of the cord reel 29 is pivotally supported by the partition 33. Yes.

  In the vicinity of the cord reel 29 on the opposite side separated by the brake lever 34 and the partition wall 33, a rotating lever 35 having a rotating shaft at substantially the same height as the brake lever 34 is pivotally supported. The rotary lever 35 is provided with a contact portion 36 that contacts the protruding rib 32 formed on the cord reel 29 in a substantially arc shape, and a sliding operation that slides a sliding lever 37 that applies vibration to the diaphragm 26. A contact release portion 39 that releases the contact between the portion 38 and the protruding rib 32 is formed. The abutting portion 36 and the protruding rib 32 are configured to abut through the window portion 40 opened in the partition wall 33.

  The contact portion 36 is provided with a wear prevention body 41 made of a metal material such as a screw to prevent wear due to contact with the protruding rib 32.

  Further, a contact spring 42 is provided in the vicinity of the sliding operation portion 38 to urge the rotation lever 35 in a direction in which the contact portion 36 contacts the rib body 31 or the protruding rib 32.

  Above the brake lever 34 is provided with an operation portion 43 that is operated when the power cord 28 is wound up. The operation portion 43 is interlocked with the brake lever 34 and has a brake release portion 44 that releases the rotation restraint of the cord reel 29. It is formed and biased upward of the cleaner body 1 by the operation portion spring 45. Furthermore, a release rib 46 that enables the contact release portion 39 to be operated is formed on a part of the outer periphery of the operation portion 43.

  Further, the distance between the release rib 46 and the contact release portion 39 is configured at a position closer to the distance between the brake release portion 44 and the brake lever 34.

  The sliding lever 37 is formed with an engaging portion 47 that engages with a sliding operation portion 38 provided on the rotary lever 35 at one end so that the sliding operation portion 38 is sandwiched before and after the operation direction, and vibration is generated at the other end. A vibration transmitting portion 48 that applies vibration to the plate 26 is formed.

  The partition wall 23 is provided with an opening 49 through which the sliding lever 37 passes, and the covering member 51 that covers the vibration transmitting portion 48 of the sliding lever 37 and that has a press-fit fixing portion 50 that is press-fitted and fixed to the vibration transmitting portion 48. The opening 49 is held and fixed.

  The cover member 51 is formed of a soft material such as rubber by forming a flange-like convex portion 52 on the outer periphery and making the thickness of the press-fit fixing portion 50 thicker than the peripheral thickness.

  The partition wall 33 is formed with an inclination prevention rib 53 for preventing the inclination of the sliding lever 37 during operation, and the cover body 54 that covers the rotation lever 35 and the sliding lever 37 is held and fixed.

  The cover body 54 forms a bearing portion that pivotally supports the rotation lever 35 similarly to the partition wall body 33, and holds the contact spring 42 that urges the rotation lever 35. Further, in order to prevent the cover member 51 from coming off, a clamping portion 55 that clamps the cover member 51 between the partition wall 23 is formed. Further, the cover body 54 is surrounded by a holding rib 56 formed in the upper case 10.

  On the other hand, a holding frame 57 that pivotally supports the diaphragm 26 is provided in front of the communication port 25 provided in the partition wall 23 in the dust collecting chamber 17, and is detachably set in an insertion portion 58 provided in the lower case 9. . A rotating shaft 59 of the diaphragm 26 is pivotally supported at a substantially central height position of the holding frame 57.

  The diaphragm 26 is provided with a diaphragm operating unit 60 that receives vibration from the sliding lever 37, and a diaphragm spring 61 that biases the diaphragm 26 toward the partition wall 23 on a substantially vertical line of the diaphragm operating unit 60. It is provided between the holding frame 57.

  The abutting portion 36 formed on the rotating lever 35, the sliding lever 37, and the diaphragm operating portion 60 formed on the diaphragm 26 are arranged on a substantially straight line.

  The holding frame 57 is provided with an enclosure 62 that covers the cover member 51 and the diaphragm operating unit 60, and a regulating body 63 that restricts the movable range of the diaphragm 26 is formed at the upper end of the holding frame 57. The movable range is narrower than the movable range of the sliding lever 37.

  A plurality of dust removing portions 64 that apply vibration to the dust collecting bag 19 of the vibration plate 26 to remove dust are formed at the upper end of the vibration plate 26, and a wide surface is provided so as to come into contact with the surface. Further, when the dust collection bag 19 is vibrated, the dust removing unit 64 operates to a position protruding from the holding frame 57 to the outside. Due to the periodic operation of the rotating lever 35 and the sliding lever 37, the dust removing portion 64 of the diaphragm 26 periodically swings between the position protruding from the holding frame 57 and the regulating body 63.

  The diaphragm 26 or the holding frame 57 is formed with a hook portion 65 in which a finger or the like can be hooked at the time of removal in a lattice shape.

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

  When the power cord is pulled out, the protruding rib formed on the cord reel also rotates, and when the abutting portion rides on the protruding rib, the rotating lever rotates and the sliding operation portion moves, and the sliding operation portion slides. The sliding lever slides to the rear of the cleaner body 1 by pushing the engaging portion of the moving lever. The press-fitting and fixing portion of the covering member moves rearward together with the sliding vibration transmitting portion, and the diaphragm is tilted rearward by the urging force of the vibration spring because the pressing force of the covering member to the diaphragm operating portion disappears.

  When the abutment part passes over the protruding rib, the rotating lever rotates with impact and returns to the original position, so the sliding lever quickly slides forward with the interlocking cover member, and the diaphragm operates Collide with the part. Then, the vibration plate moves with an impact force toward the dust bag and can apply a large vibration to the dust bag, so that the dust adhering to the inside of the dust bag can be efficiently removed. The dust collection performance can be improved by reducing the decrease in suction air.

  Further, since a plurality of contact portions are formed, the diaphragm can apply vibrations to the dust collection bag a plurality of times when the power cord is pulled out, so that the number of times of tapping is increased and the dust removal effect can be expanded.

  The engaging part of the sliding lever is shaped so as to sandwich the sliding operation part formed on the rotating lever in the front-rear direction, so that the rotating operation of the rotating lever can be smoothly converted into a horizontal operation, and the operation of the sliding operation part On the other hand, since it can be smoothly linked, the dust deposited and deposited inside the dust bag can be efficiently removed.

  The rotating lever is pivotally supported in the vicinity of the cord reel, and the contact portion 36 formed on the rotating lever 35, the sliding lever 37, and the diaphragm operating portion 60 formed on the diaphragm 26 are substantially in a straight line. Therefore, the dust removal operation can be transmitted in the shortest distance. As a result, the dust removing means can be configured compactly, and the vacuum cleaner body 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 36 of the rotary lever 35 is substantially arc-shaped. Therefore, when the cord reel rotates, the operation of the contact portion riding on the protruding ribs becomes smooth, and as a result, noise during dust removal can be reduced.

  In addition, since the wear prevention body 41 for preventing wear is provided on the contact portion with a metal material such as a screw, it is possible to prevent abrupt wear and maintain durable cleaning with excellent durability.

  When the operation unit is operated during winding of the power cord, the release rib operates the contact release unit of the rotation lever, and the rotation lever rotates. Immediately after the rotating lever contact portion moves to a position where it does not contact the protruding rib, the brake release portion operates the brake lever to release the rotation restraint of the cord reel 29 and wind the power cord. take. As a result, when the power cord is wound, it can be smoothly wound without generating an extra load or noise, and usability can be improved.

  Since the release rib formed in the operation part is formed on a part of the outer periphery of the operation part, it can be formed in the same size as the conventional operation part, preventing the main body from being enlarged by adding functions Can be cleaned comfortably.

  In addition, as shown in FIG. 12, when it is desired to remove dust when the power cord is not pulled out, when the operation part is pushed down, the release rib comes into contact with the contact release part formed on the rotary lever and the rotary lever rotates. The sliding operation part moves, the sliding operation part pushes the engaging part of the sliding lever, and the sliding lever slides to the rear side of the cleaner body 1. The press-fitting and fixing portion of the covering member moves rearward together with the sliding vibration transmitting portion, and the diaphragm is tilted rearward by the urging force of the vibration spring because the pressing force of the covering member to the diaphragm operating portion disappears. Subsequently, when the operation part is released, the contact of the release rib to the contact release part is released by the elastic force of the operation part spring, and the rotating lever rotates with the impact force by the elastic force of the contact spring. In order to move back to the original position, the sliding lever quickly slides forward together with the interlocking cover member and collides with the diaphragm operating portion of the diaphragm. Then, the vibration plate moves with impact force toward the dust bag and can apply a large vibration to the dust bag, so the dust bag can be removed as much as you like and comfortable. Can be cleaned.

  Even if the sliding lever operates in the electric blower chamber and the dust collecting chamber with a pressure difference, the covering member covers the sliding lever and forms a convex shape on the outer periphery, and is held by the partition wall. It can be securely fixed to the opening formed in the partition wall, and it will not come off or shift even if an external force other than normal use is applied. Can be smoothly transmitted to the diaphragm without obstructing the operation of the.

  The cover member is made of a soft material such as rubber, covers the sliding lever, and is provided with a press-fit fixing part that is press-fitted to the sliding lever. It is possible to convey the dust accumulated in the dust bag and efficiently remove the dust.

  Since the thickness of the tip of the cover member that comes into contact with the diaphragm is formed to be thicker than the peripheral thickness, the sliding lever repeatedly operates so that the tip of the cover member and the diaphragm come into contact with each other. Even if it wears down to some extent, it is not torn and pierced, so that airtightness in the dust collection chamber can always be ensured.

  Since the rotation shaft 59 of the diaphragm 26 is pivotally supported at a substantially central height position of the holding frame 57, the torque required to vibrate the diaphragm can be reduced. Can be lightened and the operability can be improved, and when the full dust bag is taken out, the diaphragm moves so that it can be taken out without being caught.

  Since the holding frame 57 is provided with an enclosing portion 62 that covers the covering member 51 and the diaphragm operating portion 60, even if the dust collection bag spreads with dust, the operation of the diaphragm operating portion 60 is not hindered. Vibration can be reliably applied to the dust bag.

  Since the movable range of the diaphragm operating unit 60 is narrower than the movable range of the sliding lever 37, the sliding lever is moved in the front-rear direction by pulling out the power cord, etc. even if the dust bag spreads and the diaphragm is pushed backward. Therefore, the diaphragm can be vibrated and dust can be sucked in until the dust bag is full.

  A plurality of dust removing portions 64 are formed on a wide surface so as to come into contact with the surface, and periodically swing between a position protruding from the holding frame 57 and the regulating body 63, so that dust can be effectively removed.

  The diaphragm 26 or the holding frame 57 is formed with a hook portion 65 that can be hooked with a finger or the like at the time of removal, so that the removal can be easily performed.

  Since the holding frame 57 is detachable from the lower case 9, the model can be differentiated with or without a dust removal mechanism simply by attaching and replacing the holding frame 57 without the diaphragm attached, such as when selling an inexpensive vacuum cleaner. Can be easily done. Similarly, the model can be easily differentiated by simply removing the dust removing means such as a rotating lever.

  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 the state where the diaphragm of the vacuum cleaner is tilted most backward 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 Left side view when the operation part of the vacuum cleaner is pressed

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 12 Electric blower 17 Dust collection chamber 19 Dust collection bag 22 Electric blower chamber 23 Partition wall 26 Diaphragm 27 Dust removal means 28 Power cord 29 Code reel 37 Sliding lever 49 Opening part 50 Press-fit fixing part 51 Covering member 52 Convex Part

Claims (5)

Provided in an electric blower that generates suction air, an electric blower chamber that houses the electric blower, a cord reel around which a power cord is wound, a dust collection bag that collects dust, and a dust collection chamber that houses the dust collection bag And dust removing means for removing dust adhering to the dust bag, and the dust removing means slides in conjunction with rotation of the cord reel when the power cord is pulled out and / or when the power cord is stored. And a diaphragm that operates in conjunction with the sliding lever and vibrates the dust collecting bag, and the sliding lever is formed on a partition wall that partitions the electric blower chamber and the dust collecting chamber. Provided with a cover member that is positioned between the sliding lever and the diaphragm and is held and fixed to the opening, and a part of the cover member bends in conjunction with the sliding lever. The airtightness of the dust chamber Configuration and the vacuum cleaner to be coercive. The vacuum cleaner according to claim 1, wherein the covering member is made of a soft material such as rubber. The vacuum cleaner according to claim 1 or 2, wherein the cover member is formed in a shape that covers the slide lever, and a press-fit fixing portion that is press-fitted and fixed to the slide lever is provided at a tip of the cover member. The vacuum cleaner according to claim 3, wherein the thickness of the tip end portion of the covering member that comes into contact with the diaphragm is thicker than the peripheral thickness. The vacuum cleaner of Claim 4 which formed the convex part in the outer periphery of the covering member.

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