JP5386992B2 - Electric 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. When pulling out or when storing the power cord, it engages and swings with the protruding ribs formed on the rotating cord reel, and the dust removal plate swings in conjunction with it. The brake means for preventing the winding of the power cord at the time is configured separately from the dust removing means (for example, see Patent Document 1).
JP 2006-192045 A

  However, the above configuration has a problem in that the dust removing means and the brake means are close to each other around the cord reel, resulting in a complicated structure and an increased number of parts.

  The present invention solves the above-mentioned problem, and dust attached to and accumulated inside the dust bag can be reliably and effectively removed, and the dust removing means also serves as a brake means, thereby simplifying the structure and reducing the number of parts. The purpose is to reduce and provide vacuum cleaners cheaply.

In order to solve the above-described conventional problems, the present invention has an electric blower that generates suction air, a cord reel around which a power cord is wound, and a dust collection bag that collects dust, and the dust attached to the dust collection bag. a dust removing means for removing dust, a brake means for holding so that the power cord is not caught at the time of use, the dust removing means, the cord reel which rotates during closing operation of the drawer during and / or power cords of the cord A rotating lever that rotates in conjunction with the rotating lever, a sliding lever that slides in conjunction with the rotating lever, and a periodic operation that operates in conjunction with the sliding lever to apply vibration to the dust bag. The brake means includes a substantially circumferential rib body formed on the cord reel, a plurality of projecting ribs provided on a part of the rib body, and one end of the rotating lever. The rib body and front Is composed of an abutment portion abutting on the projection rib, wherein with the abutting portions rotating the cord reel by being contact with the cord reel is stopped of the rotation lever, the sliding lever When an external force is applied, only the sliding lever operates and the rotating lever is not released.By using the dust removing means also as the brake means, the structure is simplified and the number of parts is reduced. The vacuum cleaner can be provided at low cost, and a large vibration can be transmitted to the dust bag.As a result, dust attached to the dust bag can be reliably and efficiently removed, so that it adheres to the inside of the dust bag. Accumulated dust can be efficiently removed, and the dust collection performance can be improved by reducing the reduction in suction air.

  The present invention can efficiently remove dust deposited and accumulated inside the dust collection bag, can reduce the reduction of suction air and improve dust collection performance, and also serves as a brake means by the dust removal means. Further, it is possible to provide a vacuum cleaner that has a simplified structure and a reduced number of parts, and is reduced in size and weight.

The first invention includes an electric blower that emits suction air, a cord reel around which a power cord is wound, a dust collecting bag that collects dust, and dust removing means that removes dust attached to the dust collecting bag , Brake means is provided for holding the power cord so that it is not caught when in use, and the dust removing means is periodically rotated in conjunction with the cord reel that rotates when the power cord is pulled out and / or when the power cord is retracted. A rotating lever that slides in conjunction with the rotating lever, and a diaphragm that periodically operates in conjunction with the sliding lever to apply vibration to the dust bag, The brake means includes a substantially circumferential rib body formed on the cord reel, a plurality of protrusion ribs provided on a part of the rib body, and the rib body and the protrusion provided at one end of the rotating lever. Abutment that abuts against the rib Is composed of a, the the rotation of the cord reel with the abutment portion is brought into contact with the cord reel is stopped of the rotation lever, when an external force is applied to the slide lever, Only the sliding lever operates and the rotating lever is not released. When the power cord is stored or pulled out, the cord reel rotates, and the rotating lever rotates in conjunction with it. When the sliding lever slides periodically, the sliding lever abuts against the vibration plate and gives vibration, and the vibrating vibration plate strikes the dust collection bag and applies a large vibration to the dust collection bag. Therefore, the dust attached to the inside of the dust bag can be efficiently removed, and the dust collection performance can be improved by reducing the reduction of the suction air. To simplify It is possible to provide cheaper to reduce the vacuum cleaner the number of parts to. Further, even when the sliding lever is touched, the power cord can be prevented from being unintentionally wound.

According to a second aspect of the invention, in addition to the first aspect, the protruding rib has a smooth R shape on the side where the rotary lever is operated when the power cord is pulled out, and is in contact with the rotary lever when the power cord is retracted. Is formed in a linear shape toward the center of the cord reel. When the abutment portion of the rotating lever rides on the protruding rib and the rotating lever rotates, the position of the sliding operation portion moves, and the sliding operation When the part engages with the engaging part of the sliding lever, the rotational force of the cord reel can be converted into sliding force, the sliding lever slides, the sliding lever abuts against the diaphragm, and gives vibration. Since the vibrating diaphragm can hit the dust bag and apply a large vibration to the dust bag, it is possible to efficiently remove dust that has accumulated inside the dust bag and reduce the drop in suction air. As a means of braking. It can securely held by the protrusion rib and pivoting lever is hooked, those that can provide good usability.

  In addition to the first or second invention, the third aspect of the invention provides a contact portion of the rotating lever with the cord reel in order to prevent the contact portion from scraping in order to prevent malfunction due to wear. Since the metal is attached, it is possible to prevent the contact portion of the rotating lever from being scraped, and to provide good usability.

  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 connecting shape of the protruding rib 32 and the rib body 31 is such that the side that comes into contact with the turning lever 34 when the power cord 28 is pulled out smoothly connects the other side, that is, the side that comes into contact with the turning lever 34 when the power cord 28 is wound is centered It is configured in a straight line toward.

  The cord reel 29 of the cord winding device 30 is pivotally supported by a partition wall 33, and a pivot lever 34 that stops and releases the rotation of the cord reel 29 is pivotally supported by the partition 33. ing. The rotation of the cord reel 29 is configured to be stopped by contacting the protruding rib 32 and the rotating lever 34 when the power cord is wound.

  The rotating lever 34 is provided with an abutting 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 lever 36 that slides on the diaphragm 26 is slid. A contact release portion 38 that releases contact between the operation 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 a brake release portion that releases the rotation restraint of the cord reel 29. 43 is formed and is urged above 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 abutting portion 45 has a wall surface on which the sliding lever 36 is slid by the operation of the sliding operation portion 37 on the attachment side of the abutting spring 47, and the other is open. 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 preventing rib 53 that prevents the sliding lever 36 from tilting during operation, and a cover body 54 that covers the rotating lever 34 and the sliding lever 36 is held and fixed. The cover body 54 forms a bearing portion that pivotally supports the rotation lever 34, similarly to the partition wall body 33, holds the contact spring 41 that urges the rotation lever 34, and biases the sliding lever 36. The abutting 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 the vibration inserted from the 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 vibration plate 26 to remove dust forms a gentle arc shape so as to come into contact with the surface. 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. Then, the sliding operation portion 37 pushes the wall surface of 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. When the contact portion 35 returns to the original position, the pressing force of the rotation lever 34 disappears, so the slide lever 36 contacts. The diaphragm 26 is quickly slid by the urging force of the spring 47, and in conjunction with it, the diaphragm 26 moves toward the dust bag 19 with an impact force and can apply a large vibration to the dust bag 19. Dust adhering to and accumulating inside the bag 19 can be efficiently removed, and the dust collection performance can be improved by reducing the decrease in suction air.

  Further, since the plurality of protruding ribs 32 are formed, the diaphragm 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 rotating lever 34 is substantially circular. Since it is formed in an arc shape, when the cord reel 29 rotates, the operation of the abutment 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 abutting portion 35 of the rotating lever 34 moves away to a position where it does not abut against 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.

  Also, as shown in FIG. 12, 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 it rotates with an impact force and returns to its original position, the pressing force of the rotating lever 34 disappears. Therefore, the sliding lever 36 slides quickly by the biasing force of the contact spring 47 and interlocks. Since the diaphragm 26 moves toward the dust bag 19 with an impact force and can apply a large vibration to the dust bag 19, the dust bag 19 can be removed until it is satisfied as much as desired. Can do a comfortable cleaning.

  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.

  The dust removing portion 58 is formed in a gentle arc shape so as to come into contact with the surface and abuts against the dust collection bag 19 over a wide area, so that dust can be removed effectively. 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 36.

  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 The central sectional view of the vacuum cleaner Same perspective view of the vacuum cleaner without the dust collection lid 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 Same as above, right side view with the partition and cover removed from the vacuum cleaner dust removal means The partial sectional view which showed a part of dust removal means of the vacuum cleaner Same as above, perspective view of parts around the operation part of the vacuum cleaner The left side view showing a state in which the contact portion of the vacuum cleaner completely rides on the protruding rib The left side view showing a state in which the contact portion of the vacuum cleaner passes over the protruding rib The left side view showing the state where the rotary lever of the vacuum cleaner stops the rotation of the cord reel The left side view showing a state where force is applied to the diaphragm with the rotary lever of the vacuum cleaner stopping the rotation of the cord reel.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 12 Electric blower 19 Dust collection bag 26 Diaphragm 27 Dust removal means 28 Power cord 29 Code reel 34 Turning lever 36 Sliding lever 59 Recessed part

Claims (3)

An electric blower for emitting suction air has a cord reel winding the power cord, a dust bag for collecting dust, and dust removing means for removing dust and the dust adhered to the dust bag, power cord during use caught A rotating lever that periodically rotates in conjunction with the cord reel that rotates when the power cord is pulled out and / or when the power cord is stored. A sliding lever that slides in conjunction with the rotating lever, and a diaphragm that periodically operates in conjunction with the sliding lever and applies vibrations to the dust collection bag, the brake means , A substantially circumferential rib body formed on the cord reel, a plurality of projecting ribs provided on a part of the rib body, and an abutting contact with the rib body and the projecting rib provided at one end of the rotating lever. It is composed of a contact portion Cage, wherein the rotary lever together with the abutment rotation of the cord reel by being contact with the cord reel is stopped, when an external force is applied to the sliding lever, only the sliding lever The vacuum cleaner is configured so that the rotation lever is not released. The projecting rib has a smooth R shape on the side where the rotating lever is operated when the power cord is pulled out, and a linear shape which faces the center of the cord reel on the side which contacts the rotating lever when the power cord is wound. The electric vacuum cleaner according to 1. The vacuum cleaner according to claim 1 or 2, wherein a metal is attached to a contact portion of the rotating lever with the cord reel in order to prevent a malfunction of the contact portion in order to prevent malfunction due to wear.

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