JP2005261658A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light-weight and durable vacuum cleaner with excellent maitainability of a cord reel, capable of effectively cooling the cord reel. <P>SOLUTION: The vacuum cleaner has a body casing comprising a lower casing 1, an upper casing 5 with an upper cover 58 for covering the top of the lower casing 1, a dust collecting chamber 101 for storing a dust collecting body 102 inside, a motor chamber 103 for storing an electric blower 105, etc. The lower casing 1 has a diaphragm 11 for supporting the electric blower 105, rear wheel mounting walls 13a and 13b on both sides of the diaphragm 11 on which rear wheels are mounted, a cord reel chamber 104 whose bottom is open, disposed under the diaphragm 11, and a partition 26 with a vent 27, projecting between the dust collection chamber 101 and a motor chamber 103, all of which are integrally formed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner. In general, a vacuum cleaner body incorporating a dust collection chamber, an electric blower, etc., a hose unit having a connection port connected to the vacuum cleaner body at one end and an operation part at the other end, The extension pipe to be connected and the suction tool connected to the extension pipe are collectively called a vacuum cleaner. In the present invention, the main body of the vacuum cleaner is called a vacuum cleaner.

  In this type of vacuum cleaner, an electric blower consisting of a motor part of an electric blower and a fan part of the electric blower is covered with a motor cover to shield the motor noise, and the outer peripheral part of the fan part of the electric blower is Is surrounded by an anti-vibration motor cushion with ribs facing outward, and an inward hooking rib is formed on each outer edge of the motor cover divided into two, and is surrounded by an upper motor cover and a lower motor cover The protrusion (claw) provided at the tip of the hook rib bites into the motor cushion and is firmly fixed and integrated as the electric blower 9 (for example, see Patent Document 1).

  In addition, there is a vacuum cleaner in which a lid is provided at the bottom of the lower case, a cord winding device is disposed between the two, and the cord winding device is taken out by removing the lid (for example, Patent Document 2).

JP 2000-253449 A (page 3-4, FIG. 2) Japanese Utility Model Publication No. 46-35576 (page 1-2, Fig. 1)

The vacuum cleaner of Patent Document 1 has the following problems.
(1) Since the double wall is formed by the bottom of the dust collection chamber and the bottom of the lower case, the weight increases.
(2) Since the partition plate for holding the electric blower is formed as a separate part from the lower case, the rigidity is low and vibration is generated.
(3) When repairing or replacing the cord reel, it is extremely troublesome because the upper case must be removed and the electric blower removed, and the dust collection chamber must be disassembled.

  In the electric vacuum cleaner of Patent Document 2, the cord winding device may fall off when the lid is removed, and the attachment and detachment of the cord winding device is troublesome. Moreover, although a code | cord | chord generate | occur | produces heat and becomes high temperature by use of a vacuum cleaner, since the ventilation part is not provided in a lower case and a cover body, the bottom part of a vacuum cleaner becomes high temperature, and is not preferable.

  The present invention has been made in order to solve the above-described problems. By forming the lower case lightly and firmly, vibration due to the electric blower can be suppressed, and maintenance of the cord reel can be improved. An object of the present invention is to provide a vacuum cleaner capable of effectively cooling a cord reel.

  A vacuum cleaner according to the present invention includes a lower case, an upper case having an upper cover and covering an upper portion of the lower case, and the like, a dust collection chamber in which a dust collector is accommodated, and a motor in which an electric blower is accommodated A main body case provided with a chamber and the like, the lower case is a partition plate that supports the electric blower, a rear wheel mounting wall that is provided on both sides of the partition plate and on which a rear wheel is mounted, and the partition plate A cord reel chamber provided underneath and having a bottom opened, and a partition wall having a vent and projecting between the dust collecting chamber and the motor chamber are integrally configured.

  According to the vacuum cleaner of the present invention, the vibration due to the electric blower is light and lightweight, the maintenance of the cord reel is easy, and the cord seal can be effectively cooled.

[Embodiment 1]
1 is an external view of a vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a longitudinal sectional view of FIG. 1, and FIG. 3 is an exploded perspective view of FIG.
The vacuum cleaner according to the present embodiment includes a lower case 1, a lower case attached seal buffer 40, an inlet 45, an upper case 5, an upper lid 58 having a decorative plate 60, and a lower case 1 attached to the bottom of the lower case 1. A body case is formed by a lid 61 and the like, and a front wheel 95 is provided on the front side of the bottom plate of the lower case 1, and a pair of rear wheels 96a each having a plurality of exhaust holes 97 on both sides on the rear side. 96b are attached.

  Inside the main body case, a dust collection chamber 101 in which a dust collection bag 102 as a dust collector is accommodated, an electric blower 105 accommodated in a cover 106, and a control unit 107 attached to the cover 106 are installed. A motor reel 103, a cord reel chamber 104 formed below the motor chamber 103, in which the cord reel assembly 6 is accommodated, and the like. Hereinafter, each of the components as described above will be described in detail.

  As shown in FIGS. 2 to 4, the lower case 1 has an opening 12 having a substantially horseshoe shape in plan view on the rear side, and a partition plate 11 that supports the electric blower 105 is provided. On both sides of the partition plate 11, a rear wheel is attached to the rear wall 14 in a substantially arc shape from the top to the rear, centering slightly below the partition plate 11 and straddling the motor chamber 103 and the cord reel chamber 104. Walls 13a and 13b are provided, and rear wheel mounting holes 15a and 15b (15a not shown) for rotatably mounting the rear wheels 96a and 96b are provided in the center of the rear wheel mounting walls 13a and 13b. ing. Reference numerals 16a and 16b denote guide grooves provided in the lower part on the inner side of the rear wheel mounting holes 15a and 15b and having the lower part opened. The rear wheel mounting walls 13a and 13b are provided with a plurality of ventilation holes 17, respectively. For mounting the lateral filter 18 on both sides of the ventilation holes 17 on the inner surface side of the rear wheel mounting walls 13a and 13b. Guide ribs 19 are provided.

  Reference numeral 20 denotes a cylindrical guide tube for storing the cord take-up button 97, and a cord drawing port 21 is provided at a lower portion thereof. 22a to 22c are provided on the front side and the rear side of the opening 12 of the partition plate 11, and screw insertion holes for fixing the cord reel assembly 6, and 23a to 23c (23b not shown) are rear wheels. Screw insertion holes provided on the front side of the mounting walls 13a and 13b and the front side of the rear wall 14 for fixing the upper case 5 to the lower case 1, 24 is provided on the rear wall 14, and a lower lid 61 is provided. A locking portion 25 for locking is a fixing arm for fixing the electric blower 105.

A partition wall 26 projects from the front side of the partition plate 11 and forms a boundary between the dust collection chamber 101 and the motor chamber 103. A large number of air holes 27 are provided. A mounting frame 28 having 29 is detachably mounted.
30a and 30b are extended from the front side of the wheel mounting walls 13a and 13b, and are side walls connected to the bottom of the lower case 1 provided on the front surface side of the partition wall 26, and are gradually narrowed toward the front surface side. A front plate 31 is provided at the front end. An opening 32 to which a check valve 33 is attached is provided at the center of the front plate 31, and dust collection bags 102 housed in the dust collection chamber 101 are attached to both sides and the lower part of the opening 32. Guide ribs 34 are provided. A holder 35 that holds the dust bag 102 is attached to the upper portion of the opening 32. A cord reel chamber 104 is formed below the motor chamber 103, surrounded by the partition plate 11, rear wheel mounting walls 13a and 13b, and the partition wall 26 and having an open bottom. Although not shown, screw holes are provided at the lower end edge of the cord reel chamber 104 in correspondence with screw insertion holes 72a and 72b provided in the lower lid 61 described later.

  The seal buffer 40 is made of an elastic material, and side seal portions 41a and 41b that also serve as bumpers mounted on the upper portions of the side walls 30a and 30b on both sides of the dust collecting chamber 101, and upward from the rear side of the both side seal portions 41a and 41b. The gate-shaped rear seal portion 42 that covers the outer periphery of the partition wall 26 and the gate-shaped front seal portion that extends upward from the front side of the side seal portions 41 a and 41 b and covers the upper outer periphery of the front plate 31. Part seal part 43.

  45 is an inlet that covers the front surface of the front plate 31 including the front seal portion 43 of the seal buffer 40 and is fixed to the lower case 1. A hose connection port 46 that communicates with the opening 32 of the front plate 31 is provided. A locking claw 47 projects from the upper part.

  As shown in FIGS. 2 and 3, the upper case 5 is formed to cover the partition wall 25 and the rear wheels 96 a and 96 b from the rear wall 14 of the lower case 1, and the rear wall 51 has a plurality of vent holes 52. A rear filter 53 is mounted between a filter guide (not shown) provided inside the rear wall 51 and the rear wall 51. Further, a stopper 55 of a handle 54 that is rotatably mounted on the upper case 1 protrudes from the upper portion of the rear wall 51. Reference numeral 56 denotes a guide hole from which the upper part of the cord winding button 98 protrudes, and 57a to 57c (57b and 57c are not shown) are studs having screw holes provided on both sides of the front end portion and the rear wall 51 side.

  Reference numeral 58 denotes an upper lid whose rear portion is rotatably attached to the upper case 5 and is formed in a shape that covers the upper portion of the inlet 45 from the partition wall 26, and a locking piece that is locked to a locking claw 47 of the inlet 45 at the front end portion. 59 is provided. Reference numeral 60 denotes a decorative plate that is attached to the upper lid 58 and covers the front upper surface of the upper case 5 and the upper surface of the upper lid 58. A motor chamber 103 is formed between the partition plate 11 of the lower case 1 and the upper case 5, and a dust collection chamber 101 is formed between the bottom of the lower case 1 and the upper lid 58.

Next, the cord reel assembly 6 including the lower lid 61, the cord reel 75, and the cord reel support plate 85 will be described.
5 to 7, the outer shape of the lower lid 61 is formed so as to close the opening of the bottom of the cord reel chamber 104 of the lower case 1, and the cord reel 75 is formed at the center. A bearing 62 that supports the rotating shaft is provided. A recess 63 that accommodates the lower flange 76 of the cord reel 75 is formed around the bearing 62, and a peripheral wall 68 including a rear wall 68 a is formed on the outer periphery. Yes. 64a and 64b are guide portions that are provided on both sides of the recess 63 continuously to the peripheral wall 68 and are fitted into the guide grooves 16a and 16b of the lower case 1, and are opened on the inside to form exhaust ports 65a and 65b. . Reference numerals 66a and 66b stand up in the vicinity of the guide portions 64a and 64b, and are studs for fixing the cord reel support plate 85 to the lower lid 61. A locking claw 67 is provided at the upper end portion.

  Reference numeral 69 denotes a cord lead-out port provided on one side of the rear wall 67a in correspondence with the cord lead-out port 21 of the lower case 1, and the cord guide 70 is attached thereto. 71 is provided on the rear wall 68a, and is a locking claw that is locked to the locking portion 24 provided on the rear wall 14 of the lower case 1. 72a and 72b are screw holes 22a and 22 is a screw insertion hole for screwing the lower lid 61 to the lower case 1.

As shown in FIGS. 5 and 8, the cord reel 75 includes a lower flange 76 and an upper flange 77, and a cord winding portion (not shown) around which the cord 81 is wound by connecting the both, and the upper surface of the upper flange 77. A pair of locking claws 78 project from the central portion, a recess 79 is formed around the locking portion 78, and a plurality of vent holes 80 are provided in a flat portion on the outer periphery thereof. Although not shown, a rotation shaft projects from the center of the lower surface of the lower flange 76, and a spiral spring for winding the cord 81 is interposed in a recess provided on the outer periphery thereof.
The cord reel support plate 85 attached to the upper surface of the cord reel 75 has a latching portion 87 for latching the latching claw 78 of the cord reel 75 at the center, and corresponds to the concave portion 79 of the cord reel 75 around it. A recess 88 projecting downward is provided, and the outer periphery thereof is formed in a flat and substantially horseshoe shape corresponding to the opening 12 of the lower case 1, and a peripheral portion 89 having a peripheral wall provided with a plurality of vent holes 90. And mounting arms 91a and 91b to the lower lid 61 projecting on both sides of the rear side of the main body 86. The mounting arms 91a and 91b are provided on studs 66a and 66b of the lower lid 61, respectively. A locking portion 92 for locking the locking claw 67 is provided. Reference numerals 93 a to 93 c denote screw holes provided corresponding to the screw insertion holes 22 a to 22 c provided in the lower case 1, and 94 denotes a brake handle of the cord 81.

The cord reel support plate 85 as described above fits the protrusion formed on the lower surface by the concave portion 88 into the concave portion 79 of the flange 77 of the cord reel 75 and also engages the locking claw 78 of the cord reel 75 with the locking portion 87. It can be attached to and rotated freely.
The rotary shaft provided on the lower surface of the lower flange 76 of the cord reel 75 is inserted into the bearing 62 of the lower lid 61, and the lower flange 76 is accommodated in the recess 63. Next, the locking claws 67 provided on the studs 66a and 66b of the lower lid 61 are locked to the locking portions 92 provided on the mounting arms 91a and 91b of the cord reel support plate 85 as shown in FIG. Then, the plug 82 of the cord 81 is taken out through the cord guide 70 attached to the cord outlet port 69 of the lower lid 61. As a result, a cord reel assembly 6 as shown in FIG. 9 is formed. In addition, when attaching to the lower lid 61 of the cord reel support plate 85, as shown in FIG. 10, the case where the locking claws 67 provided on the studs 66a and 66b are locked to the locking portion 92 is shown. However, the present invention is not limited to this. For example, other means such as press-fitting a stud into holes provided in the mounting arms 91a and 91b of the cord reel support plate 85 or screwing the stud may be used.

  As shown in FIG. 11, the electric blower 105 includes a motor 105a, a blower 105b, and a ring-shaped elastic member 105c attached to the outer periphery of the blower 105b, and has a motor cover having exhaust ports 106a and 106b on the bottom and one side wall. 106. On the other side wall of the motor cover 106, a control unit 107 including a substrate 107a on which a large number of electronic components are mounted and a cover 107b is attached. A filter (not shown) is disposed between the electric blower 105 and the exhaust ports 106 a and 106 b of the motor cover 106.

  Next, an example of an assembly procedure of the electric blower according to the present invention configured as described above will be described. The lower case 1 is preinstalled with a seal buffer 40, an inlet 45, a front wheel 95, and rear wheels 96a and 96b, and an upper cover 58 having a handle 54 and a decorative plate 60 is preinstalled on the upper case 5. It shall be. Further, it is assumed that the cord reel assembly 6 and the electric blower 105 are also assembled in advance.

  First, the lower case 1 is turned upside down, and the guide portions 64a and 64b are formed in the guide grooves 16a and 16b at the lower end edge of the cord reel chamber 104 surrounded by the partition plate 11, the rear wheel mounting walls 13a and 13b and the partition wall 26. The lower cover 61 of the cord reel assembly 6 is abutted while being inserted and positioned, and the locking claw 71 is locked to the locking portion 24 provided on the rear wall 14 of the lower case 1. Then, screws inserted into the screw insertion holes 72 a and 72 b provided on the front side are screwed into screw holes (not shown) provided in the lower end edge of the cord reel chamber 104 and fixed. Further, the cord take-up button 98 is inserted into the guide tube 20 and the tip thereof is locked to the brake handle 94.

  At this time, the cord reel support plate 85 of the cord reel assembly 6 is inserted into the opening portion 12 of the partition plate 11, and the cord winding portion of the cord reel 75 is rearward from the guide grooves 16 a and 16 b of the lower case 1. It communicates with a vent hole 97 provided in the rings 96a, 96b. In this state, the lower case 1 is returned to its original state, and screws inserted into the screw insertion holes 22a to 22c provided in the lower case 1 are screwed into the screw holes 93a to 93c of the cord reel support plate 85 and fixed. As a result, the cord reel assembly 6 is mounted in the cord reel chamber 104 of the lower case 1.

  Next, the motor blower 106 in which the electric blower 105 is accommodated and the control unit 107 is attached is accommodated in the motor chamber 103 and placed on the partition plate 11, and the front side is locked to the partition wall 26. The rear surface side is fixed to the fixed arm 25. At this time, the exhaust port 106 a provided at the bottom of the motor cover 106 is positioned on the opening 12 of the partition plate 11.

Next, the upper case 25 to which the upper lid 58 is connected is placed on the motor chamber 103. At this time, the studs 57 a to 57 c having screw holes abut (or fit) with the screw insertion holes 23 a to 23 c of the lower case 1, respectively, and the cord winding button 98 is exposed from the guide hole 56.
Next, the screws inserted from below the screw insertion holes 23a to 23c are screwed into the screw holes of the studs 57a to 57c and fixed. Accordingly, the upper case 5, the upper lid 58, and the decorative plate 60 are attached to the lower case 1, and a dust collection chamber 101 is formed between the bottom of the lower case 1 and the upper lid 58.

Next, the operation of the vacuum cleaner according to the present invention configured as described above will be described.
As in the conventional vacuum cleaner, the dust collection bag 102 is set in the dust collection chamber 101, the hose is connected to the hose connection port 46, the plug 82 is connected to the power source, and the power switch is turned on.
Thereby, the electric blower 105 is driven, dust such as a floor surface is sucked together with air by the suction tool, and sucked into the dust bag 102. Here, the dust is stored in the dust bag 102, and the separated air is purified by the front filter 29 and flows into the electric blower 105 side to cool the electric blower 105. The operation so far is the same as that of the conventional vacuum cleaner.

  A part of the air that has cooled the electric blower 105 is discharged from an exhaust port 106b provided on the side wall of the motor cover 106 through a filter, further cleaned by the horizontal filter 18 and the rear filter 53, and then on the rear wheel mounting wall 13b. The gas is discharged from the exhaust port 17, the exhaust hole 97 of the rear wheel 96 b and the exhaust port 52 provided in the upper case 5. A part of the air is further cleaned by the horizontal filter 18 after the controller 107 is cooled, and is discharged from the exhaust holes 17 and 97 of the rear wheel mounting wall 13a and the rear wheel 96a.

  Further, part of the air that has cooled the electric blower 105 is discharged from an exhaust port 106a provided at the bottom of the motor cover 106 through a filter, and the opening 12 of the partition plate 11 and the cord reel support of the cord reel assembly 6 are supported. It flows into the cord reel chamber 104 from the vent holes 90, 80 provided in the upper flange 77 of the plate 85 and the cord reel 75, and after cooling the cord 81, passes through the exhaust ports 65a, 65b of the guide portions 64a, 64b, and the rear wheel 96a. , 96b are discharged from the exhaust holes 97.

  When the cord reel 75 is taken out from the lower case 1 for repair or replacement, the upper case 25 is removed, the electric blower 105 is taken out, the screws screwed through the screw insertion holes 22a to 22c provided in the partition plate 11 are removed, A screw for fixing the lower lid 61 may be removed, and the cord reel assembly 6 including the lower lid 61, the cord reel 75, and the cord reel support plate 85 may be taken out from under the lower case 1.

[Embodiment 2]
In the first embodiment, the cord reel assembly 6 including the lower lid 61, the cord reel 75, and the cord reel support plate 85 is inserted into the cord reel chamber 104 from below the lower case 1, and the cord reel support plate 85 is inserted into the lower case. 1, the lower lid 61 is screwed to the lower case 1 and attached to the lower case 1. However, in the present embodiment, the cord reel assembly 6 is fixed to and attached to the lower case 1. Is a simpler version.

  In the present embodiment, for example, the screw insertion holes 22a to 22c provided in the lower case 1 of FIG. 5 are omitted, and a concave portion that is a positioning means that opens downward is provided at that position, and the locking portion of the lower case 1 is provided. 24 is omitted and a third screw hole is provided in the vicinity thereof. Further, for example, at the positions of the screw holes 93a and 93b of the cord reel support plate 85 of FIG. 6, a convex portion that is a positioning means that fits into the concave portion is provided, and the locking claw 71 of the lower lid 61 is omitted. A third screw insertion hole (for example, 72c) is provided corresponding to the third screw hole provided in the lower case 1.

  In the present embodiment, when the cord reel assembly 6 is attached to the lower case 1, the cord reel support plate 85 is attached to the partition plate 11 while the guide portions 64a and 64b of the lower lid 61 are fitted into the guide grooves 16a and 16b. In addition to being fitted into the opening 12, the positioning projection provided on the opening 12 is fitted into the positioning recess of the lower case 1 for positioning. Then, the outer peripheral edge of the lower lid 61 is brought into contact with the lower end edge of the cord reel chamber 104, and the screws inserted from below into the screw insertion holes 72a to 72c are screwed into the screw holes provided in the lower end edge and fixed.

  In this embodiment, when the cord reel 75 is taken out from the lower case 1 for repair or replacement, the screw for fixing the lower lid 61 is removed and the cord reel assembly 6 is pulled out from the cord reel chamber 104 downward. Since it is not necessary to remove the upper case 5 and the electric blower 105, it is very easy to attach and detach.

According to the present invention configured as described above, the following effects can be obtained.
(1) Since the partition plate 11 that holds the electric blower 105 is configured integrally with the lower case 1, the rigidity of the partition plate 11 can be increased, and thus vibrations to the electric blower 105 can be suppressed.
(2) Since a part of the bottom surface of the lower case 1 is constituted by the lower lid 61 which is a separate part and the double wall part is eliminated, the number of parts can be reduced and the weight can be reduced.

(3) Since the guide grooves 16a and 16b are provided on both sides of the motor chamber 103 of the lower case 1, and the guide portions 64a and 64b fitted into the guide grooves 16a and 16b are provided on both sides of the lower lid 61, the lower case 1 Therefore, positioning when the cord reel assembly 6 is mounted on is easy, and workability is improved.
(4) Since the cord reel assembly 6 fixes the cord reel support plate 85 to the partition plate 11 of the lower case 1 and fixes the lower lid 61 to the lower surface of the lower case 1, Can be attached firmly.
(5) Since the bearing for supporting the rotating shaft of the cord reel 75 is provided at the substantially central portion of the lower lid 61, and the fixing portion for fixing the mounting arms 91a and 91b of the cord reel support plate 85 is provided on the lower lid 61. The assembly of the cord reel assembly 6 is easy.

(6) Since the lower lid 61 is provided with the outlet portion 69 of the cord 81 or the attachment portion of the cord guide 70, the cord 81 and the plug 82 are not sandwiched when the cord reel assembly 6 is assembled into the lower case 1, 81 can be held in place.
(7) Air that has cooled the electric blower 105 and has flowed out from the opening 12 provided in the partition plate 11 of the lower case 1 is provided on the cord reel support plate 85 and the upper flange 77 of the cord reel 75 of the cord reel assembly 6. Then, after the cord 81 is cooled, the cord 81 is cooled, passes through the exhaust ports 65a and 65b of the guide portions 64a and 64b, and is discharged from the exhaust holes 97 of the rear wheels 96a and 96b. The cord 81 can be effectively cooled.

(8) Since the exhaust ports 65a and 65b are provided in the vicinity of the rear wheels 96a and 96b on the side surface of the lower lid 61, the exhaust from the cord reel chamber 104 hits the rear wheels 96a and 96b and is then discharged from the exhaust hole 97. Therefore, exhaust is not performed directly from the exhaust ports 65a and 65b, and dust rising can be suppressed by dispersion of exhaust.
(9) When repairing or replacing the cord reel 75, remove the upper case 5 and the electric blower 105 and remove the screw that fixes the cord reel support 85 of the cord reel assembly 6 and the screw that fixes the lower lid 61. In the second embodiment, the cord reel assembly 6 can be taken out from the cord reel chamber 104 simply by removing the screw of the lower lid 61. Therefore, the attachment / detachment is very simple.
If a battery is installed in the cord reel chamber 104 instead of the cord reel assembly 6, it can be made cordless by an electric vacuum cleaner having the same structure. In this case as well, when the battery is replaced, it is very easy to remove the lower lid 61.

It is an external view of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view of FIG. FIG. 2 is an exploded perspective view of FIG. 1. It is a top perspective view of the lower case of FIG. FIG. 3 is an exploded perspective view of the cord reel assembly of FIG. 2. FIG. 6 is a top perspective view of the lower lid of FIG. 5. FIG. 7 is a bottom perspective view of the lower lid of FIG. 6. It is a perspective view which shows the state which attached the cord reel support plate to the cord reel of FIG. It is a perspective view which shows the state which attached the cord reel of FIG. 8 to the lower cover of FIG. It is explanatory drawing which shows a means to attach a code reel support plate to the lower cover of FIG. It is a disassembled perspective view of the electric blower of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower case, 11 Partition plate, 12 Opening part, 13a, 13b Rear wheel mounting wall, 16a, 16b Guide groove, 17 Exhaust hole, 26 Partition, 31 Front plate, 40 Seal buffer, 45 Inlet, 5 Upper case, 58 Upper lid , 6 Cord reel assembly, 61 Lower lid, 64a, 64b Guide portion, 69 Cord outlet, 75 Cord reel, 80 Vent hole, 81 cord, 85 Cord reel support plate, 90 Vent hole, 91a, 91b Mounting arm, 96a 96b Rear wheel, 97 exhaust hole.

Claims (10)

A main body case comprising a lower case and an upper case having an upper cover and covering the upper portion of the lower case, and provided with a dust collection chamber in which a dust collector is accommodated, a motor chamber in which an electric blower is accommodated, etc. Have
The lower case includes a partition plate that supports the electric blower, a rear wheel mounting wall that is provided on both sides of the partition plate and on which a rear wheel is mounted, and a cord reel chamber that is provided under the partition plate and has an open bottom. And a vacuum cleaner having a ventilation hole integrally formed between the dust collection chamber and the motor chamber.   2. The electric vacuum cleaner according to claim 1, wherein an opening communicating with the cord reel chamber is provided in the partition plate of the lower case.   The vacuum cleaner according to claim 1 or 2, wherein a guide groove that opens downward is provided inside the rear wheel mounting wall of the lower case, and an exhaust hole is provided in the rear wheel mounting wall.   The vacuum cleaner according to any one of claims 1 to 3, wherein an exhaust hole is provided in a rear wheel attached to a rear wheel mounting wall of the lower case.   A cord reel housed in the cord reel chamber of the lower case is disposed on the cord reel, a lower lid configured to close a bottom opening of the cord reel chamber, a cord reel attached to the lower lid, and the cord reel 2. A cord reel assembly having a cord reel support plate fixed to the lower lid, wherein the cord reel is rotatably supported by the lower lid and the cord reel support plate. The electric vacuum cleaner in any one of -4.   6. The electric vacuum cleaner according to claim 5, wherein the cord reel assembly is inserted into a cord reel chamber from a bottom opening of the lower case, and the lower lid is fixed to the lower case.   The vacuum cleaner according to claim 5 or 6, wherein the lower lid is provided with a guide portion having an exhaust port and fitted into a guide groove of the lower case.   The electric vacuum cleaner according to any one of claims 5 to 7, wherein a cord outlet is provided in a rear wall of the lower lid.   The vacuum cleaner according to any one of claims 5 to 8, wherein the cord reel support plate is provided with a vent hole communicating with an opening provided in a partition plate of the lower case. The vacuum cleaner according to any one of claims 5 to 9, wherein a vent hole communicating with the cord reel chamber is provided in an upper flange of the cord reel.

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