JP5317729B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to an electric vacuum cleaner including a seal member that airtightly connects a suction side of an electric blower to a rectifying space by being elastically pressed against a partition rib that divides a rectifying space for rectification.

  Conventionally, this type of electric vacuum cleaner includes a main body case in which a main body dust collection chamber, which is a dust collection chamber, and an electric blower chamber communicate with each other and are partitioned in the front-rear direction. In the main body case, a partition rib that partitions the rectifying space for rectification is formed at a position between the main body dust collection chamber and the electric blower chamber, and the partition rib protrudes toward the electric blower chamber side. . In addition, an electric blower unit in which a substantially cylindrical support rubber, which is a soft seal member, is attached around the suction side of the electric blower is inserted into the electric blower chamber from above. The electric blower unit elastically presses the support rubber to the partition rib, whereby the suction side of the electric blower is hermetically connected to the main body dust collection chamber and elastically supported by the electric blower chamber (for example, (See Patent Documents 1 and 2.)

Japanese Patent Laying-Open No. 2005-334158 (page 4, FIG. 5) Japanese Patent Laying-Open No. 2005-192746 (page 4-5, FIG. 1)

  The adhesion between the support rubber and the partition rib not only affects the suction force (suction work rate) of the electric vacuum cleaner, but also affects vibration and sound leakage to the outside due to driving of the electric blower. Therefore, it is preferable to improve the adhesion between the support rubber and the partition rib as much as possible.

  However, in order to ensure adhesion in this manner, when the electric blower unit is attached to the electric blower chamber from above while sliding the support rubber with respect to the partition rib, the lower portion of the support rubber is in contact with the partition rib. The contact may drown and enter the rectifying space, which may impair the adhesion between the support rubber and the partition rib.

  In addition, since such support rubber squeezes are hidden in the lower part of the electric blower unit, it is difficult to notice when attaching the electric blower unit, and it is possible to confirm the problem until the performance test of the suction work rate is performed. Not easy.

  In this regard, the electric blower chamber is broadly partitioned with respect to the electric blower unit, and after the electric blower unit is once placed in the electric blower chamber, the suction side of the electric blower is moved to the partition rib side to support the support rubber. In such a configuration, the main body case not only increases in size, but the electric blower unit is placed in the electric blower chamber while the support rubber is elastically pressed against the partition rib. It is not preferable from the viewpoint of manufacturability, for example, a member for fixing is separately required and the number of parts is increased.

  This invention is made | formed in view of such a point, and it aims at providing the vacuum cleaner which can ensure the adhesiveness of the suction side of an electric blower, and a rectification | straightening space, without reducing assembly property.

The present invention includes a body case having a position to partition ribs for partitioning the rectifying space for projecting rectifying this electric blower chamber side between the collection chamber and the electric blower chamber, the electric blower, and, the partition ribs An electric blower unit that is provided with a soft seal member that is airtightly connected to the distal end portion to airtightly connect the suction side of the electric blower to the rectifying space, and is attached from above to the electric blower chamber of the main body case; The body case includes a prevention member that protrudes in a rib shape from the lower side of the partition rib to the rectifying space side to prevent a part of the seal member from entering the rectifying space, and the preventing member is substantially horizontal. When the electric blower unit is attached to the electric blower chamber, the tip is inclined so as to be connected to the tip of the partition rib from the upper face to the electric blower unit side. Those having an inclined surface for guiding the regulations position.

According to the present invention, the rib protrudes in a rib shape from the lower side of the partition rib to the rectifying space side and is inclined so that the front end portion is connected to the front end portion of the partition rib from the substantially horizontal upper surface to the electric blower unit side. When the electric blower unit is attached to the electric blower chamber from above by guiding the seal member to the regular position by the prevention member that is an inclined surface to prevent part of the seal member from entering the rectifying space, An electric blower that allows an operator to perform attachment work without paying more attention than necessary to the deformation of the seal member, and ensures that the seal member is brought into close contact with the tip of the partition rib without degrading assembly. The adhesion between the suction side and the rectifying space can be secured.

It is an expanded longitudinal cross-sectional view which shows the principal part of the vacuum cleaner of the 1st Embodiment of this invention. It is a perspective view which shows a part of main body case of a vacuum cleaner same as the above. It is a center sectional view of the vacuum cleaner main body of a vacuum cleaner same as the above. It is a perspective view which shows the state which opened the cover body of the vacuum cleaner main body same as the above. It is a perspective view which shows a vacuum cleaner same as the above. It is an expanded vertical sectional view which shows the principal part of the vacuum cleaner of one reference technology of this invention. It is an expanded longitudinal cross-sectional view which shows the principal part of the vacuum cleaner of the 2nd Embodiment of this invention. It is an expansion perspective view which shows the principal part of a vacuum cleaner same as the above. It is an expanded longitudinal cross-sectional view which shows the principal part of the vacuum cleaner of the 3rd Embodiment of this invention. It is an expanded longitudinal cross-sectional view which shows the principal part of the vacuum cleaner of the 4th Embodiment of this invention.

  The configuration of the first embodiment of the present invention will be described below with reference to FIGS.

  In FIG. 5, reference numeral 11 denotes a so-called canister-type vacuum cleaner, and the vacuum cleaner 11 has a pipe part 12 and a vacuum cleaner body 13 to which the pipe part 12 is detachably connected.

  The pipe part 12 is provided on the distal end side of the hose body 16, the connecting pipe part 15 connected to the cleaner body 13, the flexible hose body 16 communicating with the distal end side of the connecting pipe part 15. The hand operating section 17, the extension pipe 18 detachably connected to the distal end side of the hand operating section 17, and the floor brush 19 as a suction port body detachably connected to the distal end side of the extension pipe 18. It has.

  On the hand operating portion 17, a gripping portion 21 protrudes toward the hose body 16, and the gripping portion 21 is provided with a plurality of setting buttons 22 for operation.

  The vacuum cleaner main body 13 includes a main body case 25 as shown in FIGS. 2 to 4, and an electric blower chamber 28 in which an electric blower unit 27 is attached from above, A cord reel chamber for accommodating a cord reel (not shown) wound so as to allow a power cord to be taken in and out is partitioned at the rear, and a main dust collecting chamber 29, which is a dust collecting chamber, is partitioned at the front. A dust collection bag (not shown) such as a paper pack is detachably disposed in the dust chamber 29.

  The main body case 25 includes a lower case 31 formed of, for example, a synthetic resin and opened on the upper side, and an upper case 32 that covers the electric blower chamber and the cord reel chamber, which are upper rear portions of the lower case 31.

  Large-diameter running wheels 35 (only one of which is shown) for traveling of the cleaner body 13 are rotatably supported on both sides of the rear portion of the lower case 31 so as to face both sides of the electric blower chamber 28. A swivel ring 36 is turnably attached to the front side of the lower case 31, that is, the lower part of the main body dust collecting chamber 29. Furthermore, a main body suction port 37 to which the proximal end side of the hose body 16 (connection pipe portion 15) shown in FIG. 5 is detachably connected is provided in the front portion of the lower case 31 so as to communicate with the main body dust collection chamber 29. ing. Further, a partition wall 38 that partitions the electric blower chamber 28, the cord reel chamber, and the main dust collection chamber 29 is formed in a substantially central region in the front-rear direction of the lower case 31 along the left-right width direction. Further, a rear partition wall 39 that is a rear lower partition wall that partitions the rear portion of the electric blower chamber 28 is formed at a position near the rear portion of the lower case 31.

  The partition wall 38 is formed in a wall shape along the left-right width direction. The partition 38 is substantially offset in communication with the electric blower chamber 28 and the main dust collection chamber 29 at a position biased to one side in the left-right width direction. A circular communication port 43 is formed as an opening. A filter member 44 such as a urethane filter is attached to the partition wall 38 so as to cover the communication port 43. Furthermore, a substantially cylindrical partitioning a rectifying space 45 communicating with the communication port 43 between the electric blower chamber 28 and the main body dust collecting chamber 29 at the outer edge portion of the rear portion (electric blower chamber 28) of the communication port 43 of the partition wall 38. A partition rib 46 serving as a sealing rib is integrally formed so as to protrude rearward (to the electric blower chamber 28 side). In addition, inside the partition rib 46, a lattice rib 47, which is a lattice-like partition portion, is integrally formed on the entire communication port 43.

  The rectifying space 45 is a space for rectifying the suction air (air) that has passed through the main dust collection chamber 29 to the suction side (upstream side) of the electric blower unit 27, and is formed inside the partition rib 46. .

  As shown in FIG. 1, the partition rib 46 is a pressure contact surface in which the rear end surface 46 a is pressed against the front surface of the electric blower unit 27. A plurality of support ribs 48 as lower support members that support the lower part of the electric blower unit 27 are formed in the lower part of the partition rib 46 over the lower case 31.

  Each of the support ribs 48 is formed in a longitudinal shape along the front-rear direction and is spaced apart from each other in the left-right width direction. Further, a support surface 48a is formed on the upper portion of each support rib 48. The support surface 48a has a height that is curved downward from the rear end surface 46a of the partition rib 46 and extends substantially horizontally to the rear. Yes. These support surfaces 48a are contact surfaces that contact the lower part of the electric blower unit 27.

  The lattice rib 47 includes a plurality of horizontal ribs 47a formed horizontally along the left-right width direction and a plurality of vertical ribs 47b formed vertically along the vertical direction. Further, at the lower ends of the vertical ribs 47b that are positioned alternately in the left-right width direction, prevention ribs 51 as prevention members are formed integrally on the inner peripheral surface of the partition ribs 46, that is, on the rectifying space 45 side. .

  Each prevention rib 51 protrudes upward from the partition rib 46 and is formed along the front-rear direction, and the rear end portion thereof is substantially flush with the rear end surface 46a of the partition rib 46. Each prevention rib 51 includes an upper surface 51a formed in a substantially horizontal shape, and an inclined surface 51b which is a guide surface inclined downward from the upper surface 51a to the rear.

  Each inclined surface 51b is formed from the position closer to the rear side (electric blower chamber 28) than the center position of the partition rib 46 in the front-rear direction (axial direction) to the rear end portion of each prevention rib 51.

  The rear partition wall 39 is formed in a wall shape along the left-right width direction, has a smaller vertical projection than the partition wall 38, and is in contact with the lower part of the exhaust side, which is the rear part of the electric blower unit 27. The front part of the electric blower unit 27 is supported from behind so as to be in pressure contact with the rear end face 46a of the partition rib 46. Further, a cutout portion 39a, which is a lower cutout portion as a support hole portion for supporting the rear portion of the electric blower unit 27, is formed in an arc shape in the upper portion of the rear partition wall 39.

  Further, as shown in FIG. 3, the upper case 32 is screwed to the upper side of the lower case 31 so that the front end portion is connected to the partition wall 38, and the electric blower chamber 28 and the cord reel chamber are connected to the lower case 31. It is partitioned in between. In addition, a main body lid 54 as a lid is pivotally supported on the upper case 32 so that the main body dust collecting chamber 29 can be opened and closed. Furthermore, a mounting recess 55, which is a space forming portion as a circular mounting portion in a plan view, is formed at a substantially central portion of the upper case 32 in the left-right width direction. A handle 56 is attached for a person to hold and lift the cleaner body 13. In the upper case 32, a winding button 57 for winding the power cord is disposed on one side of the mounting recess 55. Further, a rear upper partition wall 58 protrudes downward from the lower portion of the upper case 32 near the rear portion, and an upper partition wall 59 projects substantially horizontally along the front portion of the rear upper partition wall 58. Is formed.

  The main body lid 54 is configured so as to airtightly close the upper portion of the main body dust collection chamber 29 by being pressed against the packing 61 attached along the upper edge of the main body dust collection chamber 29 in the closed state. ing.

  The rear upper partition wall 58 is formed in a wall shape along the left-right width direction, and contacts the upper part on the exhaust side, which is the rear part of the electric blower unit 27. The rear end surface 46a is supported from behind so as to be in pressure contact. That is, the rear upper partition wall 58 is in close contact with the upper portion of the rear partition wall 39 with the upper case 32 attached to the upper portion of the lower case 31. The rear upper partition wall 58 is formed with an arc-shaped upper notch portion (not shown) that defines a substantially circular hole 63 (FIG. 2) so as to face the notch portion 39a of the rear partition wall 39. A rear support rubber 64 as a rear support member that elastically supports the rear portion of the electric blower unit 27 is fitted into the hole 63 (FIG. 2) and is sandwiched from above and below.

  The upper partition wall 59 is a portion that defines the upper portion of the electric blower chamber 28, and a plurality of electric blower fixing portions 59a (only one is shown) protrude downward from the lower portion closer to the front side.

  Then, as shown in FIG. 3, the electric blower unit 27 includes an electric blower 66 and a support rubber 67 that is a support member as a cylindrical sealing member attached to the front end side that is the suction side of the electric blower 66. I have.

  The electric blower 66 is supplied with power from a power cord through a power cord, and in a predetermined operation mode set by the setting button 22 by a control circuit 69 which is a control means disposed on the upper partition 59 in the main body case 25. It is operated and sucks dust together with air through the pipe portion 12, and is arranged in the electric blower chamber 28 with the front side as the suction side and the rear side as the exhaust side. The electric blower 66 covers a substantially cylindrical main body 71 that houses a motor unit, a centrifugal fan that is rotated by the motor unit, and a rectifying plate that rectifies air blown from the centrifugal fan. And a cover-covered cylindrical fan cover 72 fitted to the front portion of 71.

  The main body 71 is formed with a diameter smaller than that of the fan cover 72, and is formed concentrically at the rear end and protrudes rearward from a cylindrical motor head (not shown) by a rear support rubber 64. Is retained. Further, an exhaust port (not shown) is formed in the outer peripheral surface near the rear end of the main body 71.

  The fan cover 72 is detachably attached to the front part of the main body 71. Further, a circular suction port 74 is formed at the center of the front end of the fan cover 72 as shown in FIG. This suction port communicates with the inside of the main body 71 through a centrifugal fan.

  The support rubber 67 is an anti-vibration member that absorbs vibration caused by driving the electric blower 66, and is an air-tight member that hermetically connects the suction side of the electric blower 66 and the rectifying space 45, and is soft and elastic. Is formed into a substantially covered cylindrical shape, and is attached in close contact over the outer periphery and front surface of the fan cover 72. Further, a circular rubber suction port 76 that is a prevention member suction port communicating coaxially with the suction port 74 is formed in the center of the front end portion of the support rubber 67. The support rubber 67 is airtightly connected between the rectifying space 45, the rubber suction port 76, and the suction port 74 by elastically deforming the front surface 67a, which is a contact surface of the prevention member, by being pressed against the rear end surface 46a of the partition rib 46. Configured to connect to. The lower portion of the support rubber 67 is supported by the support surface 48a of the support rib 48, and the upper portion is pressed from above by the electric blower fixing portion 59a. In other words, the electric blower unit 27 (support rubber 67) is sandwiched from above and below by the upper case 32 (upper partition wall 59 and rear upper partition wall 58) and the lower case 31 (support rib 48 and rear partition wall 39). .

  Next, the operation of the first embodiment will be described.

  When assembling the vacuum cleaner body 13, attach the support rubber 67 to the fan cover 72 of the electric blower 66 on the lower case 31 that has been molded in advance and attached various parts such as a cord reel. The electric blower unit 27 attached to the section 71 is inserted from above.

  At this time, the electric blower unit 27 is attached while the front surface 67a of the support rubber 67 is slidably contacted with the rear end surface 46a of the partition rib 46 in the vertical direction, and the rear support rubber 64 is fitted into the notch 39a of the rear partition wall 39. Let When the front surface 67a is brought into sliding contact with the rear end surface 46a of the partition rib 46, the lower portion of the support rubber 67 is deformed by frictional resistance and disengages from the electric blower 66, and rises to the rectifying space 45 side (front side). Although the part to be lifted up comes into contact with the upper surface 51a and the inclined surface 51b of each prevention rib 51, the part to be turned up slides against the prevention rib 51 and the support rubber 67 The entry into the rectifying space 45 is prevented (blocked), and the support rubber 67 is guided to the normal position without being substantially deformed.

  As a result, the front surface 67a of the support rubber 67 is elastically pressed against the rear end surface 46a of the partition rib 46, and the rectifying space 45 and the suction ports 74 and 76 are hermetically connected.

  In this state, by covering the upper case 32 with the control circuit 69 and the like attached from above the lower case 31 and screwing it, the upper part of the support rubber 67 is pressed to the lower case 31 side by the electric blower fixing part 59a. The rear support rubber 64 is sandwiched between the notch 39a by the upper notch of the rear upper partition wall 58.

  Thereafter, the main body lid 54 is rotatably attached to the upper case 32 to complete the cleaner main body 13.

  At the time of cleaning, the operator grips the grip portion 21 and operates a desired setting button 22, whereby the control circuit 69 operates the electric blower 66 in the corresponding operation mode.

  At this time, the centrifugal fan is rotated by the motor unit of the electric blower 66 to generate a negative pressure, and this negative pressure is generated via the suction port 74 and the rubber suction port 76 in the rectifying space 45 and the main body dust collecting chamber 29 (collection chamber). By acting on the dust bag), the main body suction port 37, and the pipe part 12, dust is sucked together with air from the distal end side (floor brush 19) of the pipe part 12.

  An operator inhales dust on the floor surface by placing the floor brush 19 on the floor surface and running it back and forth.

  The air containing the sucked dust is sucked into the dust bag through the floor brush 19 through the extension pipe 18, the hose body 16, and the main body suction port 37, and passes through the dust bag. , Contained dust is collected.

  The fine air dust collected by the filter member 44 is collected by the filter member 44, and then flows into the rectifying space 45 through the communication port 43. The air is sucked into the electric blower 66 through the ports 76 and 74.

  Then, the sucked air sucked into the central portion of the centrifugal fan is blown out around the centrifugal fan, and flows into the main body 71 while being rectified by the rectifying plate. The motor part is cooled to become exhaust air exhausted from the exhaust port, and is exhausted from the electric blower chamber 28 and the cord reel chamber to the outside of the main body case 25 through the exhaust hole.

  As described above, according to the first embodiment, the deformation of the lower portion of the support rubber 67 into the rectifying space 45, that is, the prevention rib 51 protruding from the lower side of the partition rib 46 to the rectifying space 45 side, that is, By attaching the electric blower unit 27 to the electric blower chamber 28 from above by preventing crushing or intrusion, installation work is performed without the operator paying more attention to the deformation of the support rubber 67 than necessary. Thus, the support rubber 67 can be securely brought into close contact with the rear end face 46a of the partition rib 46 without degrading the assemblability, and the close contact between the suction side of the electric blower 66 and the rectifying space 45 can be secured.

  In particular, when the support rubber has been deformed so as to enter the rectifying space side during installation work, the deformed part is located so as to be hidden under the electric blower unit. It is not easy to determine, and it is not easy to determine whether or not the electric blower unit is correctly attached unless the suction force (suction power) is inspected. In addition, when a problem occurs in the mounting, the once assembled vacuum cleaner main body must be disassembled and mounted again, which is inefficient. On the other hand, in the above embodiment, since the support rubber 67 is configured not to enter the rectifying space 45 by the respective prevention ribs 51, the attachment state of the electric blower unit 27 can be confirmed, or the vacuum cleaner Processes such as re-disassembly after assembling the main body 13 are reduced, and a reduction in productivity can be suppressed.

  In other words, when the electric blower unit 27 is attached, the operator can pay only a minimum amount of attention, and the reversing process from disassembly to the most attachment accompanying the occurrence of an attachment failure can be greatly reduced.

  Further, since the adhesion between the suction side of the electric blower 66 and the rectifying space 45 can be secured, the suction force (suction power) can be secured.

  Further, the electric blower chamber 28 is broadly partitioned with respect to the electric blower unit 27, and after the electric blower unit 27 is once placed in the electric blower chamber 28, the suction side of the electric blower 66 is moved to the partition rib 46 side. Therefore, it is not necessary to make the support rubber 67 in close contact with the partition rib 46, so that the main body case 25 becomes larger, the installation work of the electric blower unit 27 becomes complicated, or the support rubber 67 is attached to the partition rib. The member for fixing the electric blower unit 27 to the electric blower chamber 28 while being elastically pressed against 46 is required separately, and the number of parts is not increased and the productivity may be reduced. Absent.

Next, one reference technique will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In this reference technique , in the first embodiment, the upper side of each prevention rib 51 does not have the upper surface 51a but has only the inclined surface 51b.

  That is, each of the prevention ribs 51 has an inclined surface 51b that is inclined downward and rearward from the front end to the rear end of the partition rib 46.

  As a result, the slip of the support rubber 67 when the electric blower unit 27 is attached to the lower case 31 becomes smoother than the inclined surface 51b, and the support rubber 67 is more reliably guided to the normal position by the inclined surface 51b. Further, the deformation of the support rubber 67 can be more effectively suppressed, and the assemblability can be further improved.

Next, a second embodiment will be described with reference to FIGS. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the second embodiment, as in the first embodiment, each prevention rib 51 is a curved portion in which a continuous portion of the upper surface 51a and the inclined surface 51b is a so-called round shape curved in an arc shape. In addition to the curved surface 51c, the cross-sections of the upper surface 51a, the curved surface 51c, and the inclined surface 51b of each prevention rib 51 are curved portions 78 that are curved in an arc shape.

  That is, the curved surface 51c is curved downward from the upper surface 51a to the inclined surface 51b side, and no corner is formed on the upper portion of each prevention rib 51 by the curved surface 51c. Further, the curved portion 78 does not form corners on both sides of each prevention rib 51.

  Therefore, when the electric blower unit 27 is attached to the lower case 31, the support rubber 67 comes into contact with the curved surface 51c and the curved portion 78. Therefore, the slip of the support rubber 67 becomes smoother than the inclined surface 51b, and the support rubber 67 The deformation can be more effectively suppressed and the assemblability can be further improved.

  In addition, since the corners are not formed on each of the prevention ribs 51, the support rubber 67 in contact with the prevention ribs 51 is less likely to be damaged, gaps are less likely to be generated, and airtightness can be obtained more reliably.

In the following, a description will be given of a third embodiment with reference to FIG. In addition, about the structure and effect | action similar to said each embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the third embodiment, an inducer 81 as a rectifier is attached to the inside of the partition rib 46 in the first embodiment.

  The inducer 81 includes a substantially cylindrical outer frame portion 81a that forms an outline of the inducer 81, and a substantially spherical inducer body 81b that is a rectifier body that is continuous with the center of the outer frame portion 81a. doing. The inducer 81 is set such that the dimension in the front-rear direction (axial direction) is substantially equal to the dimension in the front-rear direction (axial direction) of the partition rib 46. For this reason, the front end portion and the rear end portion of the inducer 81 are substantially flush with the front end portion and the rear end portion (rear end surface 46a) of the partition rib 46, respectively.

  The outer frame portion 81a includes a plurality of support ribs 83 (one rectifier support portion integrally formed on the upper surface 51a of each prevention rib 51 and the upper portion of the vertical rib 47b above the inner peripheral surface of the partition rib 46. Are supported on the upper and lower sides by each lower surface 83a which is a rectifier support surface (only one is shown).

  Each support rib 83 protrudes downward from the partition rib 46 and is formed along the front-rear direction, like the prevention rib 51.

  The inducer main body 81b is integrated continuously with the outer frame portion 81a by a continuous portion 81c extending in the central axis direction from the front end portion of the outer frame portion 81a, and is gradually reduced in diameter toward the rear end side. It is formed in the shape of a circular arc. Further, the rear end portion of the inducer main body 81b is substantially flush with the rear end portion of the outer frame portion 81a, and each suction port 74 of the electric blower unit 27 is located at the center of the rear end portion. , 76 is formed in a circular communication opening 81d.

  The inducer 81 is attached in the rectifying space 45 before the electric blower unit 27 is attached, the front end is substantially flush with the rear of the lattice rib 47, and the rear end is behind the partition rib 46. It is substantially flush with the end (rear end surface 46a).

  The suction air sucked by the negative pressure generated by driving the electric blower 66 passes through the communication port 43 and is then rectified by the inducer body 81b of the inducer 81 into the suction ports 74 and 76 of the electric blower unit 27. Since it is sucked in, the suction power (suction power) is improved.

  As described above, in the vacuum cleaner 11, when the difference in the suction force (suction work rate) is given as a difference in specifications for each model, the inducer 81 is used as a means for improving the suction force (suction work rate). In this embodiment, the inducer 81 provided as a separate member can be supported by the respective prevention ribs 51, so that a configuration for supporting the inducer 81 is not required separately. The configuration of the vacuum cleaner 11 to which the inducer 81 is attached can also be supported.

  That is, it is possible to cope with a model to which the inducer 81 is attached and a model to which the inducer 81 is not attached with a common configuration, thereby improving manufacturability.

  Further, since the inducer 81 is attached in the rectifying space 45, the support rubber 67 is prevented from entering the rectifying space 45 when the electric blower unit 27 is attached.

Next, a fourth embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said each embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the fourth embodiment, the rear end portion of each prevention rib 51 protrudes rearward from the end surface of the inducer 81 on the electric blower unit 27 side in the third embodiment. In other words, the inducer 81 is set to have a smaller dimension in the front-rear direction (axial direction) than the partition rib 46.

  That is, the outer frame portion 81a of the inducer 81 and the inducer main body 81b have their front end portions substantially flush with the rear portions of the lattice ribs 47, while the respective rear end portions of the inducer body 81b It is located forward of the rear end portion (rear end surface 46a), for example, on the upper surface 51a of each prevention rib 51. In other words, the inclined surface 51 b of each prevention rib 51 is exposed rearward with respect to the inducer 81. Accordingly, the communication opening 81d is opposed to and spaced from the suction ports 74 and 76 of the electric blower unit 27.

  And the rear end part which is the electric blower unit 27 side of the inducer 81 is positioned on the main body dust collection chamber 29 side, that is, on the front side with respect to the rear end side of the prevention rib 51, thereby the fourth embodiment and In addition to having the same operational effects, the inclined surfaces 51b of the respective prevention ribs 51 are exposed rearward, so that when the electric blower unit 27 is attached, the inclined surfaces 51b are connected to the rectifying space 45 of the support rubber 67. Intrusion can be reliably prevented.

In the third and fourth embodiments, support ribs 83 may be provided on both sides of the partition rib 46 so as to support the outer frame portion 81a of the inducer 81. Good.

In each of the above embodiments, at least one prevention rib 51 may be provided.

  Further, in the main body dust collecting chamber 29, a dust collecting device such as a cyclone dust collecting cup may be attached instead of the dust collecting bag.

  And the vacuum cleaner 11 is good also as a structure which replaces with a cord reel, for example and has a secondary battery as a power supply.

11 Vacuum cleaner
25 Main unit case
27 Electric blower unit
28 Electric blower room
29 Dust collection chamber
45 Rectification space
46 partition ribs
51 Prevention rib as prevention member
51a top view
51b Inclined surface
51c Curved surface as curved part
66 Electric blower
67 Support rubber as a seal member
78 Curved part
81 Inductor as a rectifier

Claims (4)

A dust collection chamber, an electric blower chamber communicating with the dust collection chamber, and a partition rib that is positioned between the dust collection chamber and the electric blower chamber and protrudes toward the electric blower chamber to partition the rectification space for rectification. A main body case,
An electric blower, and a soft seal member that elastically presses the tip of the partition rib to connect the suction side of the electric blower to the rectifying space in an airtight manner; An electric blower unit attached from above to the blower chamber,
The main body case includes a prevention member that protrudes in a rib shape from the lower side of the partition rib to the rectifying space side and prevents a part of the seal member from entering the rectifying space ,
The prevention member is
An upper surface formed in a substantially horizontal shape;
From the upper surface to the electric blower unit side, an inclined surface is inclined so that the tip end portion is connected to the tip end portion of the partition rib, and the inclined member guides the seal member to a normal position when the electric blower unit is attached to the electric blower chamber. And a vacuum cleaner characterized by having . Prevention member, an electric vacuum cleaner according to claim 1 wherein characterized in that has a curved portion at a position in contact with the seal member when installing the electric blower unit to the electric blower chamber. A rectifier that is arranged in the rectifying space and rectifies air to the suction side of the electric blower,
The electric vacuum cleaner according to claim 1 or 2 , wherein the prevention member can support the rectifier. The electric vacuum cleaner according to claim 3 , wherein the electric blower unit side of the rectifier is located closer to the dust collection chamber than the electric blower unit side of the prevention member.

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