RU2453261C1 - Electric vacuum cleaner - Google Patents

Electric vacuum cleaner Download PDF

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Publication number
RU2453261C1
RU2453261C1 RU2010150968/12A RU2010150968A RU2453261C1 RU 2453261 C1 RU2453261 C1 RU 2453261C1 RU 2010150968/12 A RU2010150968/12 A RU 2010150968/12A RU 2010150968 A RU2010150968 A RU 2010150968A RU 2453261 C1 RU2453261 C1 RU 2453261C1
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RU
Russia
Prior art keywords
main
wheel
casing
vacuum cleaner
floor
Prior art date
Application number
RU2010150968/12A
Other languages
Russian (ru)
Inventor
Ясуси ТАКАИ (JP)
Ясуси ТАКАИ
Юудзи ОХЦУКА (JP)
Юудзи ОХЦУКА
Такаюки ИТИНО (JP)
Такаюки ИТИНО
Наоко КАВАМУРА (JP)
Наоко КАВАМУРА
Original Assignee
Кабусики Кайся Тосиба
Тосиба Конзьюмер Электроникс Холдингз Корпорейшн
Тосиба Хоум Эпплайансиз Корпорейшн
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Publication date
Priority to JP2008171640A priority Critical patent/JP5430886B2/en
Priority to JP2008-171640 priority
Application filed by Кабусики Кайся Тосиба, Тосиба Конзьюмер Электроникс Холдингз Корпорейшн, Тосиба Хоум Эпплайансиз Корпорейшн filed Critical Кабусики Кайся Тосиба
Application granted granted Critical
Publication of RU2453261C1 publication Critical patent/RU2453261C1/en

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/009Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles

Abstract

FIELD: personal use articles.
SUBSTANCE: invention relates to an electric vacuum cleaner, comprising running wheels mounted with an ability to rotate on both lateral sides of the casing of the main body. The running wheels 51 are mounted rotatably in the positions on both lateral sides of the casing 25 of the main body below the center of gravity of the main body 13. The rear wheel 52, which can be extended to and move away from the side of the floor surface F, is mounted behind the rotating shafts 57 of running wheels 51 of the casing 25 of the main body. To the rear wheel 52 the force is applied acting in the direction of extension to the floor surface F in such a way as to provide its contact with the floor surface F in the extended state. The rear wheel 52 comes into contact with the floor surface F with the proper contact pressure, so without decrease of the ability to turn the main body 13 of the vacuum cleaner the quality of movement in a straight line can be improved compared to the case when the main body of the vacuum cleaner moves only with running wheels 51.
EFFECT: improved ability to move in a straight line without decrease of the ability to turn the main body, improvement of maneuver capability of the vacuum cleaner.
5 cl, 5 dwg

Description

Technical field

The present invention relates to an electric vacuum cleaner including running wheels rotatably mounted on both sides of a casing of a main body.

State of the art

Typically, an electric vacuum cleaner of this type includes a main body of the vacuum cleaner including, as a main part of the body, a main body case, an electric fan located in a main body case, and a dust collecting part that is connected to and communicates with the suction side of the electric fan and is housed in the case main body. On both side sections of the casing of the main body, the running wheels are rotatably supported along the axis. In a substantially central position in the width direction in front of the rotating shafts of the running wheels of the casing of the main body, a swivel wheel is rotatably rotated which comes into contact with the floor surface as a surface to be cleaned. Furthermore, in a substantially central position in the width direction after the rotating shafts of the running wheels of the casing of the main body, the rear wheel is rotatably contacted with the floor surface when the front side is raised to overcome an obstacle such as a door protrusion (e.g. Patent Document 1).

Patent Document 1: Japanese Patent Publication No. 4-343815 (p. 2, FIG. 4).

SUMMARY OF THE INVENTION

Technical problem

In the electric vacuum cleaner described above, the swivel wheel is positioned so that it always protrudes from the main body of the vacuum cleaner towards the floor surface, so that when the main body of the vacuum cleaner rotates, the swivel wheel becomes an obstacle and the rotational ability of the main body of the vacuum cleaner is impaired.

On the other hand, if a swivel wheel or the like is absent and there are only running wheels, the ability to move in a straight line is deteriorated, although the ability to rotate the main body of the vacuum cleaner on the floor surface can always be provided.

The present invention was developed taking into account these circumstances, and its purpose is to create an electric vacuum cleaner that can improve the ability to move in a straight line without compromising the ability to rotate the main body.

Solution

An electric vacuum cleaner according to the present invention comprises:

the main body, including a casing of the main body and an electric fan located in the casing of the main body;

running wheels mounted to rotate in positions on both sides of the casing of the main body under the center of gravity of the main body; and

the rear wheel, which is installed with the possibility of extension to and away from the surface being cleaned behind the rotating shafts of the running wheels of the casing of the main body, which is driven in the direction of extension to the surface to be cleaned, which is in the state of movement of the main body when the main wheels of the main body are located on the surface to be cleaned , becomes in the advanced state and which is always in elastic contact with the surface being cleaned.

Preferably, the rear wheel includes:

the main body of the rear wheel, made with the possibility of contact with the surface being cleaned; and

axis-supporting part, which rotatably supports the main body of the rear wheel and is supported axially in position in front of the main body of the rear wheel on the casing of the main body with the possibility of rotation in the direction of extension or removal of the main body of the rear wheel to and from the surface being cleaned.

The axis supporting portion is preferably axially supported at a position below the line connecting the rotating shaft of the running wheel and the rotating shaft of the main body of the rear wheel, in side view.

An electric vacuum cleaner may further comprise a front wheel mounted rotatably in front of the rotating shafts of the running wheels of the casing of the main body.

At least portions of the running wheels that come into contact with the surface being cleaned are preferably made of resin, and the rear wheel preferably has a woven fabric with a relief pattern in the area that comes into contact with the surface being cleaned.

Beneficial effects of the invention

According to the present invention, by applying a force to the rear wheel, which can freely extend to and away from the surface being cleaned on the side behind the rotating shafts of the running wheels and which can come into contact with the surface to be cleaned in the extended position in the direction of extension to the surface being cleaned, the rear the wheel comes into contact with the surface being cleaned with the proper contact pressure that does not impair the ability of the main body to rotate, the ability to move in a straight line mine may be higher than when the vacuum cleaner only moves with the wheels.

Brief Description of the Drawings

1 is a partially cutaway side view of a main body of an electric vacuum cleaner according to an embodiment of the present invention.

FIG. 2 (a) is an explanatory cross-sectional view showing a state in which the rear wheel is retracted to the main body shown in FIG. 1, and FIG. 2 (b) is an explanatory cross-sectional view showing a state in which the rear wheel advanced from the main body shown in figure 1.

Figure 3 is a perspective view from below of the main body shown in figure 1.

FIG. 4 is a perspective view showing a state in which the lid of the main body shown in FIG. 1 is open.

FIG. 5 is a perspective view showing an electric vacuum cleaner with a main body shown in FIG. 1.

Description of Embodiments

Next, an electric vacuum cleaner according to an embodiment of the present invention will be described with reference to FIGS.

5, reference numeral 11 denotes an electric vacuum cleaner of the so-called “canister” type (“vacuum cleaner as a separate unit with a hose”), and this electric vacuum cleaner 11 includes a tubular part and a main body 13 of the vacuum cleaner as part of the main body, which is connected with the possibility of removal of the tubular part 12.

The tubular part 12 includes a connecting tube 15 having a working end side bent forward with respect to a side of a base end connected to the main body 13 of the vacuum cleaner, a flexible hose 16 that connects and communicates with a working end side of the connecting tube 15, a control handle 17 mounted on the side of the working end of the hose 16, an extension tube 18, which is removably connected to the side of the working end of the control handle 17, and the floor brush 19 as a housing for the suction hole, the second one is removably connected to the side of the working end of the extension tube 18.

On the control handle 17, a gripping portion 21 protrudes toward the hose 16, on which a plurality of operation control buttons 22 are provided.

As shown in FIGS. 1 and 4, the main body 13 of the vacuum cleaner includes a casing 25 of the main body, a partition 26 is installed inside the casing 25 of the main body, a chamber for an electric fan (not shown) is located on the rear side of the partition 26, in which an electric fan 27, and a chamber for a cord reel (not shown), which houses a cord reel (not shown), on which the power cord 31 is wound, and a dust chamber 35 is connected to the front side of the partition 26 and connected to the inlet side anija electric blower 27 via the connecting hole (not shown) formed in the partition 26 and the dust collecting chamber 35 of the main body is detachably mounted dust collecting cup 36 as a dust collecting device.

The casing 25 of the main body is made, for example, of synthetic resin and includes a lower casing 41, open from above, an upper casing 42 as the upper rear portion of the lower casing 41, covering the chamber of the electric fan and the chamber of the coil of the cord, and the cover 43, supported along the axis rotatable up and down relative to the upper casing 42 or the lower casing 41 and configured to open and close the dust chamber 35 of the main body.

The lower casing 41 has on its rear side a rear curved surface 45 curved to the upper rear side on a lower surface facing the floor surface F as a surface to be cleaned, a flat surface 46 extending to the front side of the rear curved surface 45 in a substantially central position in longitudinally and on the front side of the flat surface 46, the front curved surface 47 extending to the front side of the flat surface 46 and curved in a substantially arc shape to the upper front side. From both sides of the rear curved surface 45 of the lower casing 41, the large diameter driving wheels 51 are rotatably supported for moving the main body 13 of the vacuum cleaner. In addition, the rear wheel 52 is mounted on the rear curved surface 45 of the lower casing 41. The front wheel 53 is rotatably mounted on the front curved surface 47 of the lower casing 41.

Each running wheel 51 includes, as shown in FIGS. 1-3, a wheel portion 55 as an essentially shaped disk of the main body of the running wheel and a rim attached to the outer periphery of the wheel portion 55 and completely covering it.

The wheel part 55 is made, for example, of a solid synthetic resin, and its central part functions as a rotating shaft 57, supported axially to rotate on the lower casing 41.

The rim part 56 is the part that comes in contact with the floor surface F and is made of synthetic resin, for example rubber or elastomer, which is softer than the wheel part 55.

The rear wheel 52 includes an axially supporting portion 61, rotationally supported on the lower casing 41, and a rear wheel main body 62 rotatably supported on an axially supporting portion 61. The rear wheel 52 is attached to the inside having a recess of the mounting portion 63 attached to the lower casing 41, and can be extended to and retracted from the lower casing 41 (casing 25 of the main body). In addition, the rear wheel 52 is located in a substantially central position in the width direction of the main body 13 of the vacuum cleaner (casing 25 of the main body).

The axis-supporting portion 61 is rectangular in plan view and triangular in side view, and is axially supported in a portion of its front end in a front portion of the fastening portion 63 in a position behind relative to the rotating shafts 57 of the drive wheels 51 of the lower casing 41, and supports axis main body 62 of the rear wheel on the side of its rear end. Thus, the axis supporting portion 61 is positioned so that the side of its rear end moves up and down when it is rotated, as shown in FIG. 2 (a) and FIG. 2 (b). The position of the front end side of the axially supporting part 61, rotatably supported on the lower casing 41, is below the line L connecting the center of the rotating shaft 57 of the driving wheel 51 and the center of the rotating shaft of the main body 62 of the rear wheel in a side view. The inclination of the line L changes depending on the rotation position of the axis supporting part 61, and the inclination increases when the axis supporting part 61 extends toward the floor surface F, while in the present embodiment, it is assumed that the front end side of the axis supporting part 61 is supported axially on the lower case 41 in a position which is lower than the line L in the entire rotation range of the axis-supporting part 61. In addition, the force supporting the coil spring 65 is applied to the axis-supporting part 61 as a drive of the means in such a way that its rear side extends downward, that is, in the direction of the side of the surface F of the floor. The coil spring 65 is positioned in front of the rear wheel main body 62 and behind the rear end portion of the axis supporting portion 61, that is, behind the portion in which the axis supporting portion 61 is rotatably supported on the lower housing 41. The coil spring 65 is preferably is located as far as possible from the section where the axis supporting part 61 is supported along the axis with the possibility of rotation on the lower casing 41, that is, as far as possible from the section of the front end of the axis supporting part 61, so of the rear wheel 52 can be easily pushed out of the casing 25 of the main body.

The main body 62 of the rear wheel has the shape of a cylinder running in the horizontal direction, the axis of which is directed along the direction from left to right, and a woven fabric 67 with a relief pattern is attached to its outer peripheral surface. By applying force to the rear side of the axis-supporting portion 61 acting in the direction of the side of the floor surface F using the coil spring 65, the rear wheel main body 62 is positioned so that it is always in elastic contact with the floor surface F when the main the housing 13 of the vacuum cleaner moves on the surface F of the floor.

The fastening part 63 is installed in the hole 69 formed in the lower casing 41, having a rectangular shape in a plan view.

The front wheel 53 includes an axis-supporting portion of the front wheel 71 attached to the lower casing 41, a main body 72 of the front wheel, rotationally supported on the axis-supporting portion 71 of the front wheel. The front wheel 53 is located in a substantially central position in the width direction of the main body 13 of the vacuum cleaner (casing 25 of the main body), substantially symmetrical to the rear wheel 52 with respect to a straight line connecting the central axes of the rotating shafts 57 of the running wheels 51 and 51. In other words, the distance the longitudinal direction from the rotating shafts 57 of the running wheels 51 to the central axis of the front wheel 53 is substantially equal to the distance in the longitudinal direction from the rotating shafts 57 of the running wheels 51 to the central axis of the rear wheel. More specifically, the front wheel 53 and the rear wheel 52 are located on the front and rear sides at substantially equal distances from the rotating shafts 57 of the running wheels 51. In addition, the front wheel 53 is located so that the side of its lower end is located above the portion of the lower end of the rim part 56, as a portion of the lower end of the running wheel 51, and does not come into contact with the floor surface F in a normal movement situation, and makes contact with the protrusion D and the like. only when overcoming the ledge D.

The axially supporting portion of the front wheel 71 includes a pair of axially supporting plates 74 and 74 protruding downward from the lower casing 41.

The main body 72 of the front wheel has the shape of a cylinder running in the horizontal direction, the axis of which extends in the width direction, and both end sections of the main body of the front wheel are supported axially on the axially supporting plates 74 and 74, and a woven fabric 76 is attached to its outer peripheral surface with embossed pattern. Further, the front wheel main body 72 has a width substantially equal to that of the rear wheel main body 62.

In the upper casing 42, several outlet openings (not shown) open, which are connected and communicated with the outlet side of the chamber of the electric fan (chamber of the coil of the cord), and a hole 77 of the outlet of the cord is opened on the side of these outlet openings to lead the power cord 31 outward from the casing 25 main body. In the upper section of the upper casing 42, a handle 78 is mounted to rotate in the longitudinal direction as a gripping part of the main body for gripping the main body 13 of the vacuum cleaner. In addition, on the upper portion of the upper casing 42, there is a cord rewind button 79 that allows rewinding of the power cord 31 through the cord outlet hole 77 by rotating the cord reel.

The cover 43 has a rear end side that is rotatably supported along the axis, and a front end portion having a clip 81 for engaging and disengaging the cover 43 with the lower casing 41. An inclined portion 82 is formed on the cover 43 having an inclination to the front upper side to provide a circular shape, and on the inclined portion 82, a rotating portion 84 is mounted that can be rotated in a circumferential direction, including a suction hole 83 of the main body, to which a connecting tube 15 of the tubular part 12 is connected.

The electric fan 27 operates in a predetermined mode of operation defined by the control button 22, and sucks the dust along with air through the tubular part 12, receiving power from the power source through the power cord 31, and is, for example, a heavy load, the largest by weight among various components housed in the casing 25 of the main body. An electric fan 27 is placed inside the chamber of the electric fan so that its front side is the suction side and its rear side is the exhaust side, and is generally eccentric with respect to the rear side of the casing 25 of the main body. The electric fan 27 may be at least partially closed, for example, by a lid.

The cord reel is a heavy load located on the side of the electric fan 27 and located inside the chamber of the cord reel, and is generally eccentric relative to the rear side of the casing 25 of the main body.

As a result, the center of gravity of the main body 13 of the vacuum cleaner is located on the rotating shafts 57 of the running wheels 51.

On the other hand, as shown in FIG. 1, the dust collector 36 collects dust contained in the intake air by centrifugal separation (cyclone separation) and includes the main body 85 of the bowl as an outer casing and as a main body of the dust collecting device, the inner a casing 86 as an inner casing, removably mounted inside the main body 85 of the bowl, a cover 87 of the bowl as a closing part, mounted rotatably on the main body 85 of the bowl, and filtering the hour s 88 attached removably to the main body 85 of the bowl. Inside the main body 85 of the bowl of the dust collecting bowl 36, a coarse dust collecting chamber 91 is separated, which is the first dust collecting section as a dust collecting chamber for collecting coarse dust, such as dust lumps, a filter fastening part 92 to which the filter part 88 is attached, the connecting chamber 93 as an air passage connected and communicated with a camera for collecting coarse dust, and a camera 94 for collecting fine dust, performing the function of a second dust collecting section, that is, a chamber for storing dust, as ve the dust collection chamber is located under the fixing portion for the filter.

A dust removal hole 95 is formed at the lower end portion of the bowl main body 85, which is connected to and communicated with the coarse dust collecting chamber 91 and the fine dust collecting chamber 94 and which opens and closes the bowl lid 87. On the side portion of the main body 85 of the bowl is a button 96 control the opening / closing to open and close the lid 87 of the bowl. A cylindrical suction tubular part 98 is formed on the upper portion of the bowl main body 85, which separates a circular hole 97 for suctioning air, connected to and communicated with the chamber 91 for collecting coarse dust.

A seal 99 is attached to the dust removal hole 95 as a sealing member.

The air suction port 97 transmits air including dust sucked in through the tubular portion 12, as shown by arrow A, into the dust collecting chamber 92, and is positioned so as to provide an airtight connection to the exhaust side of the suction port 83 of the main body by closing the lid 43 in a situation where the air inlet is attached to the dust collecting chamber 35 of the main body.

The inner casing 86 separates the connecting chamber 93 between the inner casing and the main body 85 of the cover, and the connecting holes 101 that connect and communicate the dust collecting chamber 91 and the connecting chamber 93 are opened in both side portions (only one of them is shown), and attached to each connecting hole 101 is a side filter 102 as a filter. In addition, a cylindrical connecting tubular portion 103 is formed on the upper portion of the inner casing 86, which is configured to be airtight with the lower end side as the discharge side of the suction tubular portion 98. In addition, a front wall 104 protruding from the front portion of the inner casing 86 is formed so as to cross part of the air flow in the direction of arrow A drawn through the air suction port 97 into the chamber 91 for collecting coarse dust. In the rear portion of the inner casing 86, an opening 105 for attaching the filter is opened as an opening in the rear portion, which connects and communicates the dust collecting chamber 91 and the connection chamber 93 to the filter mounting portion 92, and a main filter is attached to the filter mounting hole 105 106 as a screening filter. In addition, under the opening 105 for attaching the filter to the rear portion of the inner casing 86, a ventilation hole 107 is formed which connects and communicates the dust collecting chamber 91 and the fine dust collecting chamber 94, and a lower filter 108 is attached to the specified ventilation hole 107 as a filter . An inclined wall 111 protruding to the rear lower side is formed above the ventilation hole of the rear portion of the inner casing 86, and a plurality of holes 112 are opened in the specified inclined wall 111 in the width direction, which connect and communicate the fine dust collection chamber 94 and the filter fastener 92, and said openings 112 are opened and closed by shutter-shaped shutters 113 as closing elements.

The front wall 104 protrudes from the front side to the rear side, opposite the dust removal hole 95, and has a connecting hole 115 that connects and communicates the coarse dust collecting chamber 91 and the connecting chamber 93, and an air filter 116 is attached to said connecting hole 115 as a filter.

The main filter 106 is a mesh screening filter made, for example, of metal, the surface of which does not have irregularities on the inlet side and on the exhaust side, and which is opposite and facing the lower end of the connecting tubular portion 103 on the exhaust side of the air suction opening 97, and the air drawn in from the air intake hole 97 passes directly through the main filter.

The ventilation hole 107 provides a smooth actuation of the shutters 113 by sucking air from the side of the chamber 91 for collecting coarse dust to the side of the chamber 94 for collecting fine dust when the shutters 113 are driven by the negative pressure generated by the operation of the electric fan 27.

A portion of the upper end of each shutter 113 is rotatably supported in position on the front side of the upper end of the holes 112, and the side of the lower end is the free end.

The cover 87 of the bowl, for example, is made of synthetic resin and has on one side a pair of ribs (not shown) to support the axis of the cover 87 of the bowl with rotation on one side of the main body 85 of the bowl, and also has a latch protrusion on the other side (not shown) having the shape of a hook, as a snap part for snapping the lid 87 of the bowl on the side of the main body 85 of the lid. In addition, a portion 121 for receiving a seal is formed on the lid 87 of the bowl, to which a seal 99 is pressed against the lower portion of the dust removal hole 95.

The filter portion 88 is a filter assembly including a surface dust filter as a filter, which is a fine dust filter, namely a pleated filter 123, and a filter holding frame 124 that holds the pleated filter 123.

The folded filter 123 picks up fine dust that filters 102, 106 and 116 do not pick up, and includes protruding portions of the ridges and protruding portions of the valleys formed alternately in the width direction in a straight line along the up and down direction, forming a folded shape. In the rear portion of the pleated filter 123, an element 125 for shaking the dust is disposed as a dust removing means that removes fine dust captured by the pleated filter 123 by vibrating the pleated filter 123.

The filter mounting portion 92 is a frame-shaped space formed in a rear portion of the bowl main body 85, and a portion of its rear end functions as an outlet 128 of the dust collector as an outlet of the dust collector having a substantially rectangular shape and covered by the filter portion 88 .

The connecting chamber 93 is an air passage through which a portion of the air sucked into the coarse dust collecting chamber 91 flows to the pleated filter 106 and is separated between the main body 85 of the bowl and the inner casing 86 and connected and communicated between the outlet side of the connecting hole 101 ( side filter 102) and a connecting hole 115 (air filter 116) and a suction side filter portion 88 of the electric fan 27.

The fine dust collection chamber 94 is a space for storing fine dust removed from the pleated filter 123 by the dust shaking member 125 through the openings 112.

Next will be considered the operation of the above embodiment.

During cleaning, the operator first opens the cover 43 of the main body 13 of the vacuum cleaner, attaches the dust collecting bowl 36 to the dust collecting chamber 35 of the main body and closes the cover 43. At this point, the operator connects and communicates the hose 16 to the suction port 83 of the main body on the upper side through the connecting tubular part 15 and connects and communicates the extension tube 18 and the floor brush 19 to the working end side of the hose 16 in order.

Next, the operator pulls the power cord 31 from the main body 13 of the vacuum cleaner and connects it to an outlet (not shown).

After that, when the operator grabs the gripping part 21 and acts on the predefined control button 22, the electric fan 27 is driven in accordance with the operation mode set by the control button 22. When driving the electric fan 27, the shutters 113 are attracted to the side of the front surface of the beveled wall 111 under the influence of air passing through the ventilation hole 107 (lower filter 108) to close the holes 112, so that the fine dust trapped in the fine dust collection chamber 94 , is not sucked from the holes 112 to the side of the filter fastener 92 (pleated filter 123).

Next, the operator moves the floor brush 19 back and forth on the floor surface F, while moving the main body 13 of the vacuum cleaner on the floor surface F by gripping the gripping part 21, and accordingly, the dust is sucked together with air from the side of the working end of the floor brush 19 behind the negative pressure generated by the electric fan 27.

At this stage, by applying a force with a coil spring 65 to the rear side of the axis supporting part 61 so that it rotates down, the rear wheel 52 extends toward the floor surface F from the lower casing 41 and the woven fabric 67 with a relief pattern of the main body 62 the rear wheel makes contact with the floor surface F, so that the main body 13 of the vacuum cleaner is supported at three points by the rear wheel 52 and the running wheels 51 and stably moves in a straight line. The main body 62 of the rear wheel is in elastic contact with the surface F of the floor due to the action of the coil spring 65, so that the up-and-down vibrations that occur during the movement of the main body 13 of the vacuum cleaner are damped by diverting the rear wheel 52 to the mounting part 63 of the casing 25 the main body as a result of compression of the coil spring 65 in accordance with the oscillations and the main body 62 of the rear wheel is in contact with the surface F of the floor with the proper contact pressure. In addition, when the main body 13 of the vacuum cleaner overcomes the protrusion D, for example, an obstacle during movement, the main body 72 of the front wheel 53 makes contact with the protrusion D and provides easy overcoming of the protrusion D and the rear side of the axis-supporting part 61 of the rear wheel 52 is rotated upwardly the upper surface of the protrusion D and the like, overcoming the force of the coil spring 65, and, accordingly, the engagement of the rear wheel 52 (the main body 62 of the rear wheel) for the protrusion D.

When the operator pulls the tubular part 12 laterally with respect to the main body 13 of the vacuum cleaner, one of the running wheels 51 rotates forward and the other running wheels 51 rotates in the opposite direction and, accordingly, the main body 13 of the vacuum cleaner rotates, following the direction of movement of the tubular part 12.

The air sucked in together with the dust from the floor brush 19 becomes sucked in air and transfers the dust from the suction port 83 of the main body to the dust collecting bowl 36 through the extension pipe 18 and the hose 16 (connecting tubular part 15).

In the dust collecting bowl 36, intake air that is sucked from the intake port 83 of the main body to the air intake port 97 is supplied substantially directly to the dust collecting chamber 91 along the open direction of the air intake port 97 through the suction tubular portion 98 and the connecting tubular portion 103 and passes directly through the inlet surface of the main filter 106, providing continuous removal and downward movement of dust adhering to the main filter 106.

In addition, the intake air that moves to the main filter 106 rotates toward the upper side of the front portion from the lower side of the rear portion in the direction of arrow A inside the dust collecting chamber 91, while removing dust adhering to the main filter 106, and then passes through the main filter 106 and flows to the mounting part 92 for the filter, while dust is collected from the intake air. Due to this rotation, coarse dust, such as dust lumps contained in intake air, undergoes centrifugal separation (cyclone separation) under the action of centrifugal force and is retained and is compressed in the direction of the lower side of the front wall 104.

Dust is captured from the intake air portion when it passes through the side filter 102 and the air filter 116 and flows into the connection chamber 93.

From the intake air that has passed through the main filter 106 or the connecting chamber 93 (side filter 102 and air filter 116), fine dust that has not been caught by the filters 102, 106 and 116 is captured when it passes through the pleated filter 123.

After that, the intake air is sucked into the electric fan 27 through the connecting hole of the partition 26, passes through the electric fan 27 and becomes the outgoing air and is led out from the main body 13 of the vacuum cleaner through the outlet of the casing 25 of the main body.

To complete the cleaning, the operator acts on a predetermined control button 22 to stop the electric fan 27. When the electric fan 27 is stopped, the shutters 113 are turned to the front lower side under their own weight to open the holes 112. In this state, the dust shaking member 125 is driven into action for a predetermined period of time to move down and remove fine dust trapped in the fine dust collection chamber 92 through holes 112. Element 125 for sun dust shaking can also be activated, for example, immediately before turning on the electric fan 27.

After that, the operator acts on the cord rewind button 79 to wind the power cord 31, disconnected from the outlet, around the cord reel through the hole 77 for outputting the cord.

When the amount of dust collected in the dust collector 36 reaches a predetermined value, the operator opens the lid 32 of the main body 13 of the vacuum cleaner, removes the dust collector 36 from the dust chamber 35 of the main body, acts on the open / close control button 96 to open the lid 87 of the bowl above a dust bin, and the like, and, accordingly, coarse dust trapped in the coarse dust collecting chamber 91 and fine dust trapped in the fine dust trapping chamber 94 are discharged through the dust removal opening 95.

In addition, when the side filter 102 and the air filter 116, etc. clogged, the operator pulls the inner casing 86 down through the hole 95 to remove dust, removes it from the main body 85 of the bowl and performs maintenance of the filters 102 and 116. At this stage, if the filter is clogged with the base due to prolonged continuous use, although this does not occur Often, the operator removes dust from the filter.

After that, the operator closes the lid 87 of the bowl in a state when the inner casing 86 is attached to the main body 85 of the bowl, again attaches the dust collecting bowl to the dust collecting chamber 35 of the main body 13 of the vacuum cleaner and closes the lid 43.

As described above, in the embodiment illustrated here, a screw force is applied to the rear wheel 52, which can extend to and retract from the floor surface F and can come into contact with the floor surface F in the extended state in the position behind the rotating shafts 57 of the running wheels 51 spring 65 in the direction of extension to the floor surface F.

Therefore, for example, if the rear wheel or the like made so that it protrudes from the casing of the main body, the quality of movement in a straight line of the main body 13 of the vacuum cleaner can be improved, but the rear wheel becomes a hindrance and impairs the ability to rotate when the main body 13 of the vacuum cleaner is rotated, and, on the other hand, as described above of an embodiment, the rear wheel 52 comes into elastic contact with the floor surface F, so that the rear wheel 52 comes into contact with the floor surface F with the proper contact pressure by extending and retracting it the required extent, so that without impairing the ability of the cleaner main body 13 to rotate via running wheels can be provided a higher quality of movement in a straight line than when the cleaner main body travels only by the traveling wheels 51 via.

In addition, only one rear wheel 52 is provided in a central position in the width direction of the main body 13 of the vacuum cleaner, so that the resistance due to friction with the floor surface F can be minimized, while ensuring the stability of movement in a straight line and the ability to rotate can be maintained.

The rear wheel 52 is always in elastic contact with the floor surface F in a movement situation when the running wheels 51 of the main body 13 of the vacuum cleaner are located on the floor surface F, so that the rear wheel 52 does not lose contact with the floor surface F and the quality of movement in a straight line can be reliably improved.

In addition, due to the fact that the main body 62 of the rear wheel 52 is supported axially on the axis supporting part 61, supported axially on the casing 25 of the main body with the possibility of rotation in the direction of extension and removal of the main body 62 of the rear wheel to and from the floor surface F , in the position in front of the main body 62 of the rear wheel, when the main body 13 of the vacuum cleaner moves forward, the axis-supporting part 61 is almost not connected to the floor surface F and the rear wheel 52 is more easily rotated in comparison with the case when, for example, the rotating shaft of the axis supporting part is located behind the main body of the rear wheel.

The axis supporting portion 61 is supported axially in a position below the line connecting the rotating shaft 57 of the driving wheel 51 and the rotating shaft of the main body 62 of the rear wheel, when viewed from the side, so that the angle of inclination of the axis supporting portion 61 relative to the floor surface F becomes smaller , the contact resistance between the rear wheel main body 62 and the floor surface F decreases and the rear wheel 52 rotates more easily.

In addition, due to the presence of a front wheel mounted to rotate in front of the rotating shafts 57 of the running wheels of the casing 25 of the main body, in the case where a protrusion D, for example an obstacle, occurs on the floor surface, when the main body 13 of the vacuum cleaner moves forward, the front wheel 53 collides with the protrusion D and rotates and, accordingly, the main body of the vacuum cleaner more easily overcomes the protrusion D, so that the cleaning becomes more convenient.

In addition, the rims 56 of the running wheels 51 that come into contact with the floor surface F are made of soft synthetic resin, and the rear wheel 52 has a woven fabric 67 with a relief pattern on the outer peripheral surface of the main body 62 of the rear wheel, which comes into contact with the surface F of the floor, and, accordingly, the running wheels 51 almost do not slip on the relatively flat surface F of the floor, and the rear wheel 52 slides more easily on the surface F of the floor, so the rear wheel 52, ensuring the quality of movement along ryamoy is unlikely to be more than interfere with turning, so that the ability to pivot can be improved.

By providing a woven fabric 67 with a relief pattern on the outer periphery of the main body 62 of the rear wheel of the rear wheel 52 and providing a woven fabric 76 with a relief pattern on the outer periphery of the main body 72 of the front wheel of the front wheel 53, dust on the floor surface F can be wiped using woven fabrics 67 and 76 with embossed pattern.

In the above embodiment, a plurality of rear wheels 52 and front wheels 53 can be provided. In this case, in order to stably support the main body 13 of the vacuum cleaner, the rear wheels and front wheels are preferably arranged substantially uniformly in the width direction, that is, symmetrically in the width direction.

The front wheel 53 may be absent provided that the main body of the vacuum cleaner can overcome the protrusion D on the floor surface F.

As a dust collecting device, a dust collecting bowl 36 for centrifugal separation of dust is used here, however, any other design can be chosen, for example, in which dust is collected in a paper bag or in which dust is collected by linear separation, etc. Therefore, the internal structure, etc. the main body 13 of the vacuum cleaner is not limited to the above construction.

Industrial applicability

The present invention can be preferably used, for example, in domestic vacuum cleaners.

Specification

11 Electric vacuum cleaner

13 The main body of the vacuum cleaner

25 main body cover

27 Electric fan

51 Wheel

52 rear wheel

53 front wheel

57 rotating shaft

61 Axis support part

62 The main body of the rear wheel

63, 67 Woven fabric with embossed pattern

F Floor surface as a surface to be cleaned

Claims (5)

1. An electric vacuum cleaner comprising a main body, including a casing of the main body and an electric fan located in the casing of the main body; running wheels mounted to rotate in positions on both sides of the casing of the main body under the center of gravity of the main body; and a rear wheel, which is mounted with the possibility of extending to and leading away from the surface to be cleaned behind the rotating shafts of the running wheels of the casing of the main body, which is driven in the direction of extension to the surface to be cleaned, which is in the state of movement of the main body when the running wheels of the main body are located on the surface, becomes in the advanced state, and which is always in elastic contact with the surface being cleaned.
2. The electric vacuum cleaner according to claim 1, in which the rear wheel includes a main body of the rear wheel, made with the possibility of contact with the surface being cleaned, and an axis-supporting part that supports the axis of rotation of the main body of the rear wheel and is supported on the axis in position in front of the main body of the rear wheel on the casing of the main body with the possibility of rotation in the direction of extension or withdrawal of the main body of the rear wheel to and from the surface being cleaned.
3. The electric vacuum cleaner according to claim 2, in which the axis supporting part is supported axially in a position below the line connecting the rotating shaft of the running wheel and the rotating shaft of the main body of the rear wheel, when viewed from the side.
4. The electric vacuum cleaner according to claim 1, comprising a front wheel mounted to rotate in front of the rotating shafts of the running wheels of the casing of the main body.
5. The electric vacuum cleaner according to claim 1, wherein at least portions of the running wheels that come into contact with the surface to be cleaned are made of resin, and the rear wheel has a woven fabric with a relief pattern in the area that comes into contact with the surface to be cleaned. surface.
RU2010150968/12A 2008-06-30 2009-05-28 Electric vacuum cleaner RU2453261C1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008171640A JP5430886B2 (en) 2008-06-30 2008-06-30 Electric vacuum cleaner
JP2008-171640 2008-06-30

Publications (1)

Publication Number Publication Date
RU2453261C1 true RU2453261C1 (en) 2012-06-20

Family

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RU2010150968/12A RU2453261C1 (en) 2008-06-30 2009-05-28 Electric vacuum cleaner

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Country Link
EP (1) EP2305089A4 (en)
JP (1) JP5430886B2 (en)
KR (1) KR101261145B1 (en)
CN (1) CN102014720B (en)
RU (1) RU2453261C1 (en)
WO (1) WO2010001674A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5159934B1 (en) * 2011-09-29 2013-03-13 シャープ株式会社 Cleaning robot
US9517789B2 (en) * 2014-07-03 2016-12-13 Wonderland Nurserygoods Company Limited Infant stroller apparatus
JP2017029564A (en) * 2015-08-05 2017-02-09 三菱電機株式会社 Vacuum cleaner
TWI653962B (en) 2016-02-29 2019-03-21 Lg電子股份有限公司 Vacuum cleaners
TWI664943B (en) 2016-02-29 2019-07-11 Lg電子股份有限公司 Vacuum cleaner
TWI637718B (en) 2016-02-29 2018-10-11 Lg電子股份有限公司 Vacuum cleaner
DE202017000985U1 (en) 2016-02-29 2017-05-29 Lg Electronics Inc. Vacuum cleaner
TWI643596B (en) 2016-02-29 2018-12-11 Lg電子股份有限公司 Vacuum cleaner
WO2017150874A1 (en) 2016-02-29 2017-09-08 엘지전자 주식회사 Vacuum cleaner
TWI636758B (en) 2016-02-29 2018-10-01 Lg電子股份有限公司 Vacuum cleaner
TWI643597B (en) 2016-02-29 2018-12-11 Lg電子股份有限公司 Vacuum cleaner
DE202017000984U1 (en) 2016-02-29 2017-05-29 Lg Electronics Inc. Vacuum cleaner
GB2564048A (en) * 2016-02-29 2019-01-02 Lg Electronics Inc Vacuum cleaner
WO2017150862A1 (en) 2016-02-29 2017-09-08 엘지전자 주식회사 Vacuum cleaner
TWI641353B (en) 2016-02-29 2018-11-21 Lg電子股份有限公司 Vacuum cleaner
DE112017000532T5 (en) * 2016-02-29 2018-10-18 Lg Electronics Inc. Vacuum cleaner
DE202017002619U1 (en) 2016-05-20 2017-08-04 Lg Electronics Inc. Vacuum cleaner
KR101872102B1 (en) * 2016-08-25 2018-06-27 엘지전자 주식회사 Vacuum cleaner and control method thereof
KR101852407B1 (en) * 2016-08-25 2018-06-11 엘지전자 주식회사 Vacuum cleaner
KR101872101B1 (en) * 2016-08-25 2018-06-27 엘지전자 주식회사 Vacuum cleaner
KR101952634B1 (en) * 2016-08-25 2019-02-27 엘지전자 주식회사 Vacuum cleaner
KR101872100B1 (en) * 2016-08-25 2018-06-27 엘지전자 주식회사 Vacuum cleaner
KR101872099B1 (en) * 2016-08-25 2018-06-27 엘지전자 주식회사 Vacuum cleaner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852705A (en) * 1988-07-22 1989-08-01 Cowan Jr Samuel C Case with extendable wheels and handle
JP2000354570A (en) * 1999-06-15 2000-12-26 Toshiba Tec Corp Vacuum cleaner and nozzle body thereof
JP2007130129A (en) * 2005-11-09 2007-05-31 Sanyo Electric Co Ltd Self-propelled vacuum cleaner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426407A (en) * 1990-05-22 1992-01-29 Sanyo Electric Co Ltd Flexible wheel device for cleaner
JPH04329918A (en) * 1991-04-30 1992-11-18 Tokyo Electric Co Ltd Electric vacuum cleaner
JPH04343815A (en) 1991-05-22 1992-11-30 Sharp Corp Floor moving type vacuum cleaner
JP3113397B2 (en) * 1992-07-16 2000-11-27 三洋電機株式会社 Electric vacuum cleaner
JP2574272Y2 (en) * 1992-10-28 1998-06-11 株式会社テック Electric vacuum cleaner
JPH07236599A (en) * 1994-03-01 1995-09-12 Matsushita Electric Ind Co Ltd Vacuum cleaner
JPH0856873A (en) * 1994-08-17 1996-03-05 Mitsubishi Electric Corp Vacuum cleaner
KR20040023285A (en) * 2002-09-11 2004-03-18 엘지전자 주식회사 Caster for vacuum cleaner and main body having the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852705A (en) * 1988-07-22 1989-08-01 Cowan Jr Samuel C Case with extendable wheels and handle
JP2000354570A (en) * 1999-06-15 2000-12-26 Toshiba Tec Corp Vacuum cleaner and nozzle body thereof
JP2007130129A (en) * 2005-11-09 2007-05-31 Sanyo Electric Co Ltd Self-propelled vacuum cleaner

Also Published As

Publication number Publication date
WO2010001674A1 (en) 2010-01-07
JP2010005341A (en) 2010-01-14
KR20100123861A (en) 2010-11-25
CN102014720A (en) 2011-04-13
CN102014720B (en) 2014-07-30
EP2305089A1 (en) 2011-04-06
EP2305089A4 (en) 2016-01-20
JP5430886B2 (en) 2014-03-05
KR101261145B1 (en) 2013-05-06

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