JPH1156719A - Suction body for vacuum cleaner and vacuum cleaner equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a suction body to be operated regardless of the direction of the suction body and to prevent damage of the cleaning face and abrasion of wheels, by equipping a second wheel which is protruded downward by rotation of a connection tube onto the lower part of the suction body and a brush member protruded downside than a first wheel on the outside of the first wheel rotation axis extended line. SOLUTION: A pair of front wheels are equipped on the lower case so that a suction body is longitudinally moved and a prescribed interval between the lower face of the suction body and the cleaning face. A roller is equipped to receive pressure on the cleaning face during cleaning. A pressure control plate 131 to hold suction pressure in the suction body is equipped in front and rear of the lower case. A pair of wheel pedestals 120 are equipped on both sides of a casing so as to be able to be appeared/ disappeared and a wheel 123 for lateral moving is axially supported almost orthogonally against a roller 132. An uneven part 140 is equipped in front of the suction body and, on both sides thereof, a pair of scraping brush 177 is equipped in the vicinity of the front wheel 125. By this constitution, dust can be scraped up and sucked without damaging the cleaning face by the uneven part 140 and the scraping brush 177.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having improved operability of a mouthpiece.

[0002]

2. Description of the Related Art As described in Japanese Patent Application Laid-Open No. 5-95862, for example, a suction device used in a conventional vacuum cleaner is provided with a vertically-moving suction device provided with wheels that move in the left-right direction. There is disclosed a vacuum cleaner in which cleaning is performed while moving in a horizontal direction. Further, by rotating the rotary tube connected to the mouthpiece by 90 degrees, cleaning in the front-rear direction is also enabled.

[0003]

However, in the technique described in the above-mentioned Japanese Patent Application Laid-Open No. 5-95862, the direction of travel is defined by the direction of the suction body, so that, for example, a vertically connected suction body is used for thin furniture. Attempts to insert into such a gap have the drawbacks that the wheels different from the operation direction become resistance, which lowers the operability and damages the cleaning surface.

Accordingly, an object of the present invention is to solve the above-mentioned problems, to provide an electric vacuum cleaner which can be operated irrespective of the direction of the suction body, can prevent damage to a cleaning surface, and can suppress wheel wear. To provide.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is characterized by a suction body having a suction port on a lower surface, and a vertically rearward rearward of the suction body with respect to the suction body. A casing having a suction passage that is rotatable upward in a range of approximately 90 degrees from the state and communicates with the suction port, and a suction joint provided at a rear portion of the casing, wherein the casing and the suction joint are A mouthpiece that is rotatable about a substantially vertical rotation axis, and is disposed on a lower surface of the suction body so as to be freely protruded and retracted. It has a wheel retracting mechanism, and the wheel retracting mechanism is set so that the laterally moving wheel travels from the lower surface of the suction main body as the casing is rotated upward.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 17 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention. Reference numeral 201 denotes a vacuum cleaner main body in which a control circuit, an electric blower and the like are built, and 202 denotes a vacuum cleaner main body. The hose connected to the suction port, 203 is a hose hand that is gripped by the user and connects the hose to one end, 204 is an extension tube connected to the other end of the hose hand 203, and 205 is an extension tube 204. Connected mouthpiece, 2
Reference numeral 06 denotes a switch operating portion provided on the hose hand portion 203, reference numeral 207 denotes a first infrared light emitting portion provided on the hose hand portion 203, reference numeral 208 denotes a second infrared light emitting portion provided on the hose hand portion 203, and reference numeral 209 denotes An infrared light receiving unit provided on the upper surface of the cleaner main body 201 has a ceiling 210 in the room.

Next, the operation of the vacuum cleaner according to the present invention will be described.
When one of the switch operation units 206 provided in the first unit is pressed, a signal code corresponding to the pressed switch is converted into an infrared signal as the first infrared light emitting unit 207 and the second infrared light emitting unit 20.
Emitted from 8.

The first infrared light emitting section 207 is disposed so as to face substantially vertically upward in a normal use state, and an infrared signal radiated from the first infrared light emitting section 207 is transmitted to a ceiling or a wall of a room. The light is reflected and reaches the infrared light receiving unit 209 of the cleaner body 201.

[0010] The second infrared light emitting section 208 is disposed on the grip end of the hose hand so as to face downward from substantially horizontal, and the infrared signal emitted from the second infrared light emitting section 208 is: It directly reaches the infrared light receiving unit 209 of the cleaner main body 201. The infrared signal that has reached the infrared light receiving unit 209 controls the vacuum cleaner via a control circuit built in the cleaner main body 201.

The suction body 205 includes a suction body 101 having a suction port 115 for sucking dust on a bottom surface, and a suction body 1.
01 is connected to the extension tube, and the movement of the hose hand portion 203 transmitted through the extension tube 204 is always
The universal joint portion 103 operates so that the bottom surface of the first member 1 contacts the floor surface, and communicates so that the air flow containing dust sucked from the suction main body 101 is guided to the extension tube 204.

The suction body 101 has a rotary brush 110 for scraping dust on the floor.

The universal joint 103 has a suction body 205 as a center, and a height direction Y of the hose hand portion 203 and a horizontal direction X.
And a mechanism for transmitting the rotation P1 of the twisting operation of the hose hand portion 203 to the rotation P2 of the mouthpiece main body 101 as it is.

In the present embodiment, a universal joint 103 is rotatably mounted on the suction main body 101 and is provided with a casing 104 which is rotatable in the vertical direction Y, and one end of which is an extension pipe 204.
And the other end is connected to the casing 104 in the left-right direction X.
Suction joint 10 mounted to allow rotation of
And 5.

Here, the moving direction along the longitudinal direction of the suction body 205 is V1, and the moving direction along the short direction of the suction body 205 at right angles to the V1 direction is V2.

As described above, according to the vacuum cleaner according to the present embodiment, the operation information input by the user is transmitted to the cleaner main body 201 using the infrared signal as described above, and the cleaner is operated. The hose 20
The hose can be reduced in weight without using a power line for the hose.

For this reason, the burden on the user at the hose hand portion 203 is reduced, and the running of the cleaner main body 201 and the operability of the suction body 205 can be improved.

The universal joint 103 is connected to the suction main body 101.
A casing 104 rotatably attached to the casing 104 and rotatable in the height direction Y, and a suction joint attached at one end to the extension tube 204 and attached at the other end to the casing 104 so as to permit rotation in the left-right direction X. 105, the direction of the mouthpiece 205 can be changed by operating the hose hand portion 203.

More specifically, by twisting the hose hand portion 203 by 90 degrees (rotation P1), the mouthpiece 205 is moved to the position shown in FIG.
Can be rotated 90 degrees (rotation P2) as shown by the dotted line.

In this way, it is possible to clean up the gap of the suction main body 101 to the width in the short direction by the normal operation in the front-rear direction.

In this state, when the front edge of the suction main body 101 is brought into contact with the wall and the hose hand portion 203 is moved in the normal front-rear direction, the suction main body 101 moves along the wall in the direction V1. Can efficiently perform floor cleaning.

Next, the structure of the mouthpiece 205 will be described with reference to FIGS.
This will be described with reference to FIG.

FIG. 1 shows a mouthpiece 20 according to an embodiment of the present invention.
5 is an upper sectional view of FIG. 1, FIG.
FIG. 4 is a top view of the suction body 205 with the suction port cover 107 removed, FIG. 4 is a rear view of the suction body 205 in FIG.
6 is a top view of the mouthpiece 205, FIG. 6 is a bottom view of the mouthpiece 205, FIG. 7 is a front view of the mouthpiece 205, FIG. 8 is a back view of the suction port cover 107, and FIGS. B is a sectional view, FIG. 11 is an exploded sectional view of the suction joint 105, FIG. 12 is an exploded view of the casing 104, and FIG.
14 and 15 are cross-sectional views of the shock absorbing bumper 106, and FIG. 16 is a bottom view of the suction joint body 166.

In FIG. 1 to FIG. 7, a suction main body 101 serving as a skeleton of the suction body 205 is divided into upper and lower parts at a substantially central height position, and a lower case 102 forming an outer shell is formed.
And an upper case 109 disposed at the upper rear of the lower case 102.

An impact absorbing bumper 106 is attached to the outer periphery of the position where the lower case 102 and the upper case 109 come into contact with each other to maintain airtightness and prevent damage to furniture and the like.

The shock-absorbing bumper 106 is made of a high-sliding resin made of hydrogenated styrene-butadiene rubber and an alloy of polypropylene and having fluororesin powder and silicone oil added thereto. High slidability upon contact with

In this embodiment, 5% of tetrafluoroethylene and 5% of silicone oil were used as the fluororesin powder.
%, But the fluororesin powder may be adjusted to 2 to 20% and the silicone oil to 2 to 20% depending on the required sliding performance.

Further, perfluoroalkoxy, fluorinated ethylene propylene, fluorinated ethylene propylene ether or the like may be used as the fluororesin powder.

Further, as an additive for obtaining slidability, inorganic lubricants such as talc, calcium titanate, graphite, molybdenum disulfide and the like, and organic lubricants such as wax, organic fatty acid metal salt, fatty acid amide and the like are used. It may be added to the material.

Further, in addition to the above-mentioned base materials,
Nylon 12 elastomer, polyurethane elastomer, polyester elastomer, polyolefin elastomer, polystyrene elastomer, soft polyethylene or the like may be used.

The nylon 12 elastomer has a slidability even when used alone, and may be used alone without adding an additive.

As described above, the shock absorbing bumper 106 is
Since it is formed of a highly slidable material, it is possible to improve the operability when the suction body 205 is moved while the shock absorbing bumper 106 is in contact with the wall, such as when cleaning the wall.

Further, in this embodiment, by providing the small protrusion group 1601 shown in FIG. 14 in the protrusion forming portion 152 shown by the hatched portion in FIG. 7, the contact area between the shock absorbing bumper 106 and the wall surface is reduced, and the sliding property is improved. Is increasing.

In this embodiment, a group of minute projections 1601
Has a configuration in which each projection has a diameter of 0.1 mm, a projection height of 0.1 mm, and a pitch of 0.2 mm, but the diameter is 0.05 mm.
mm ~ 0.5mm, projection height 0.1mm ~ 1mm, pitch is 0.5mm.
It may be in the range of 1 to 1.0 mm.

At the top of the suction body 101, a suction port 115 is provided.
And a suction port cover 107 that covers substantially the entire upper half surface of the suction main body 101 is detachably provided.

An opening / closing lever having a pair of mating projections 135 on the rear surface on the rear side of the suction port cover 107 and a projection holding portion 137 that slides laterally to hold the mating projections 135 on the upper case side opposed thereto. 133 is attached.

By operating the opening / closing lever 133 with this structure, the suction port cover 107 can be fixed to the suction main body 101 or can be detached from the suction main body 101.

Further, a handle projection 134 is provided on a surface of the suction port cover 107 facing the mating projection 135, and the handle projection 1 is attached to and detached from the suction port cover 107.
Since a finger can be placed on the suction port 34, the detachability of the suction port cover 107 is improved.

Further, since the suction port cover 107 is formed by injection molding, resin sink may appear on the surface side of the fitting projection 135, but in this embodiment, the fitting projection 135 is formed on the surface of the fitting projection 135. Since the handle protrusions 134 are provided on the opposed surface side, the sink of the resin can be made inconspicuous, and the appearance defect can be reduced.

Also, since the surface of the suction port cover 107 is coated with an ultraviolet curable resin, even if the suction port cover collides with furniture or the like under severe use conditions, the outside surface is not easily damaged. However, since the dirt is easily removed, the outer surface of the suction port cover 107 can be kept beautiful.
Further, since the suction port cover 107 covers almost the entire upper half surface of the suction port main body 101, when coating the outer surface of the suction port cover as in this embodiment, substantially the entirety of the suction port main body 101 is covered. Since the upper half is kept in a beautiful state, the design is improved.

Further, since a rear intake port 121 and an upper intake port 122 for introducing outside air are provided at the rear and upper part of the rear of the suction port cover 107, the suction port cover 107 is detached from the suction main body 101 for maintenance. In this case, the surroundings of the rear intake port 121 and the upper intake port 122 where dust easily accumulates are easy to care for, and the maintainability is improved.

Although the suction port cover 107 is coated with an ultraviolet curable resin in this embodiment, it may be coated with a silicone resin hard coating or the like.

Further, in this embodiment, the suction port cover 107
Although the UV curable resin coating is applied only to the upper case 109, the UV curable resin coating or the like may be applied to the upper case 109 because the design can be further improved.

Even if the lower case 102 is coated with an ultraviolet curable resin coating or the like, the lower case 102 can be prevented from being damaged, and the coefficient of friction with the surface to be cleaned is reduced, so that the operability can be improved.

The universal joint 10 is located behind the suction body 101.
3 are provided.

The universal joint 103 comprises a substantially cylindrical casing 104 and a suction joint 105.
4 and the inlet joint 105, as shown in FIG.
The pipe axis B1 of the pipe joint 04 and the pipe axis B2 of the suction pipe joint 105 are parallel to each other, and the suction pipe joint 105 is located above the casing 104. Further, the casing 104 and the suction pipe joint 105 are arranged so that one end thereof overlaps.

The vertical rotation shaft 138 is located at this overlapping position.
In parallel with the casing 104, the casing cylindrical portion 14
The suction joint 105 is provided with a suction joint cylindrical portion 146, and the casing cylindrical portion 145 is fitted into the suction joint cylindrical portion 146, so that the casing 104 and the suction joint 105 can rotate around a vertical rotation axis 138.

By doing so, the mouthpiece joint 105 can be bent by 90 degrees or more with respect to the mouthpiece main body 101 as shown in FIG. 20, and therefore, as shown in FIGS. Since the volume of the body 205 can be reduced, the size of the packing box can be reduced, and transportation costs and distribution costs when the vacuum cleaner is stored in a warehouse can be reduced.

Further, as shown in FIG.
By bending the 04 upwardly with respect to the suction main body 101 by 90 degrees, the volume of the suction body 205 in the packed state can be further reduced, and the distribution cost can be further reduced.

Further, as shown in FIGS. 22 and 23, the mouthpiece 205 is formed by sheet covers 2001 and 2003 and bases 2002 and 2004 formed in a shape capable of covering the entire mouthpiece 205 with a transparent resin sheet. Pinching,
Seat covers 2001 and 2003 and bases 2002 and 200
Even when the mouthpiece 205 is sold in the state of the blister pack to which the nozzle 4 is fixed, the mouthpiece 105 is bent by bending the mouthpiece joint 105 and the casing 104 with respect to the mouthpiece body 101 as shown in FIGS. Since the packaging volume can be reduced, the sales floor area of the store and the storage area of the inventory can be reduced, and the selling cost can also be reduced.

In this embodiment, the casing cylindrical portion 14
5 is provided with an upper flange 147 and a lower flange 148, and the upper flange 147 and the lower flange 1 of the suction joint cylindrical portion 145 are provided.
48, a stopper opening 149 is provided at a position facing the stopper groove 144, and the stopper opening 149 is provided.
By inserting the stopper 137, the casing 1
04 and the inlet joint 105 are rotatably locked around a vertical rotation shaft 138.

In this embodiment, a regulating projection 160 is provided above the upper flange 147 of the casing 104, and a regulating groove 161 is provided in a portion shown in FIG. On the other hand, the rotation of the casing 104 about the vertical rotation axis 138 is restricted by 90 degrees each on the left and right sides.

In this way, the suction main body 101 can be used during use.
Operability is improved because the user does not face the user.

The stopper 137 is provided with a click projection 162, and the stopper groove 144 is provided with the click projection 1 in a state where the mouthpiece body 101 faces the front.
The click groove 163 is provided at a position where the 62 fits.

By doing so, when the mouth main body 101 faces sideways, the click projection 162 must ride over the click groove 163, so that the mouth main body is less likely to face sideways, and the stability when traveling straight is increased.

In this embodiment, as shown in FIGS. 12 (a) and 12 (b), the casing 104 is made up of a casing body 164 and a casing piece 165 including a half from the center of the inside of the bent portion of the casing 104 and its periphery. It consists of two parts.

By doing so, even in the case of injection molding, FIG.
Can be formed to have a large bending radius R at the bent portion of the casing 104, and noise can be reduced.

In the present embodiment, the bending radius R of the bent portion of the casing 104 is 12.5 mm, but the bent radius R of the bent portion is preferably 10 mm or more.

Although not shown, in this embodiment, the casing piece 165 is engaged with and fixed to the casing body 164 by claws provided on the casing piece 165.

The casing piece 165 may be fixed to the casing body 164 by ultrasonic welding or screwing.

Further, in this embodiment, the mouthpiece 105 is connected to the mouthpiece body 166 having an opening 169 at the outside of the bent portion of the mouthpiece 105 as shown in FIG.
9 is covered with an inner joint cover 168, and the joint cover 167 is covered from above, and is screwed to the suction joint body 166.

By doing so, even in the case of injection molding, FIG.
1 can be formed to have a large bending radius R at the bent portion of the suction joint 105, and noise can be reduced.

In this embodiment, the bending radius R of the bent portion of the suction joint 105 is set to 10 mm, but the bending radius R of the bent portion is preferably 10 mm or more.

A portion of the casing 104 on the side of the suction main body 101 is provided with a pair of rotary cylinder portions 171 that can rotate around the horizontal rotary shaft 170 shown in FIG.

Then, the upper case 109 and the lower case 102
Are provided with rotating bearing portions 172 and 173, respectively, and the rotating cylinder portion 1 is provided.
The casing 104 is rotatably connected to the mouthpiece main body 101 about the horizontal rotation shaft 170 by sandwiching the rotary shaft 71 between the rotary bearings 172 and 173.

The casing 104 and the upper case 10
9, a rotating cover 108 is provided between the lower case 102 and the casing 1
A sufficient flow passage area is obtained at the outlet of the suction body 101 at 74.

In the lower case 102, as shown in FIG.
A pair of front wheels 125 so as to move the entire suction body 205 in the front-rear direction and maintain a constant interval between the lower surface of the suction body 205 and the cleaning surface, and to receive pressure on the cleaning surface during use of the cleaner. A roller 132 is provided.

The suction port 1 is located before and after the lower case 102.
Pressure control plates 130 and 131 for holding the suction pressure in
Are arranged.

The front wheel 125 is made of a high sliding resin containing hydrogenated styrene-butadiene rubber and a polypropylene alloy as a base material and a fluororesin powder and silicone oil added thereto, and moves the suction body 101 in the V1 direction. Good running performance can be obtained even when it is performed.

In this embodiment, 5% of tetrafluoroethylene and 5% of silicone oil were used as the fluororesin powder.
%, But the fluororesin powder may be adjusted to 2 to 20% and the silicone oil may be adjusted to 2 to 20% depending on the required sliding performance.

Further, perfluoroalkoxy, fluorinated ethylene propylene, fluorinated ethylene propylene ether or the like may be used as the fluororesin powder.

Further, as an additive for obtaining slidability, inorganic lubricants such as talc, calcium titanate, graphite, molybdenum disulfide and the like, and organic lubricants such as wax, metal salts of organic fatty acids and fatty acid amides are used. It may be added to the material.

Further, in addition to the above-mentioned base materials,
Nylon 12 elastomer, polyurethane elastomer, polyester elastomer, polyolefin elastomer, polystyrene elastomer, soft polyethylene, ultra high molecular polyethylene, nylon 6, nylon 6
6, polyacetal or the like may be used.

Incidentally, nylon 12 elastomer, ultra high molecular polyethylene, nylon 6, nylon 66, and polyacetal have slidability even when used alone, and may be used alone without adding any additives.

As described above, since the front wheel 125 is made of a highly slidable material, a good running property can be obtained even when the suction main body 101 is moved in the V1 direction.

The lower case 102 includes a casing 10
4, a pair of wheel bases 120 having laterally movable wheels 123 supported substantially at right angles to the rollers 132 are supported so as to be able to protrude and retract.

The wheel base 120 is urged upward by a spring 175, and the casing 104 is moved upward and downward by a projection 176 provided on the casing 104.
When the wheel base 120 is pushed upward around 0, the wheel base 120 is pushed out and protrudes to the lower case lower surface, and when the casing 104 is rotated to the uppermost position, the roller 132 is raised by 2 mm from the floor surface. Has become.

In this way, when moving the suction main body 101 in the V1 direction, the casing 104 has been rotated to almost the uppermost position, so that the roller 132 floats above the floor surface, and Since the laterally moving wheels 123 that are pivotally supported at substantially right angles contact the ground, good traveling performance can be obtained even when the wheels are moved in the V1 direction.

Further, a concave / convex portion 140 is provided in front of the suction port 115 of the lower case 102, and a pair of scraping brushes 177 are disposed substantially on both sides thereof and near the front wheel 125.

The scraping brush 177 is formed of a pile cloth having pile yarns woven in a predetermined direction with respect to the base cloth, and is arranged so that the pile yarns are inclined toward the center of the suction opening. Have been.

In this way, when the suction main body 101 is turned sideways and is operated in the V1 direction at the wall, dust on the carpet is scraped up by the uneven portion 140 in front of the suction port, and the scraping brush 177 is also used. Since the pile yarns are inclined along the operation direction, dust can be effectively scraped up, so that the performance of collecting dust near the wall is improved.

Further, since the concave portions 150 and 151 are provided at the front edge of the shock absorbing bumper 106,
Even if the front surface is closely attached to the wall, the air flow path is secured and the wind flows through the uneven portion 140, so that the dust collection performance is further improved.

Further, since the recesses 151 on both sides of the suction port are larger than the recess 150 at the center of the suction port, the air current flows smoothly without stagnation, and the dust collecting performance is improved.

The scraping brush 177 is first adhered to the base cloth in the form of an original cloth with a cloth adhesive, and then the pile cloth and the base plate 179 are simultaneously pulled out by a punching die. Is adhered to with a plastic adhesive.

This is because the cloth adhesive has a high adhesive strength but a high viscosity, and if it is to be directly adhered to the lower case 102, care must be taken to prevent protrusion and stringing when applying the adhesive. In contrast, the pile cloth is punched out together with the base plate 179, while the property is not good. Therefore, there is no need to worry about the protrusion of the cloth adhesive, and the lower case 102 and the base plate 179 are made of ABS. A low-viscosity agent such as methyl ethyl ketone can be used as the agent, and there is no need to worry about stringing, so workability is improved.

Further, a scraping brush protection projection 178 is provided around the scraping brush 177, and the adhesive surface of the scraping brush 177 is attached to the scraping brush protection projection 17.
8, the load is not directly applied to the adhesive surface, and the scraping brush 177 can be prevented from peeling off.

The tip of the pile thread of the scraping brush 177 protrudes from the contact surface of the front wheel 125, and the front wheel 125 floats above the floor regardless of whether the wheel base 120 is on a business trip or not on the floor. Therefore, the operability when moving the suction main body 101 in the V1 direction is improved, and wear of the front wheel 125 can be prevented.

Further, even if a load is applied to the suction main body 101 and the pile yarn warps, the front wheel 125 supports the suction main body 101, so that the lower case 102 does not contact the floor surface.
The floor can be prevented from being damaged, and the load can be distributed to the front wheel 125 and the scraping brush 177, so that the abrasion of the front wheel 125 can be suppressed.

Inside the suction body 205, a rotary brush 110 for scraping dust and the like is provided, and an upper suction port 122 and a rear suction port provided in the suction port cover 107 are provided.
The airflow introduced from 121 is guided to the turbine 111, and the rotating brush 110 rotates, so that dust can be scraped up.

[0090]

As described above, according to the present invention, in a vacuum cleaner in which the direction of the suction opening can be changed by twisting the hand operation portion, the operability when moving in the lateral direction is improved, and the bottom surface of the suction main body is reduced. Since the life of the wheel attached to the vehicle can be improved, it is possible to provide a vacuum cleaner with improved handleability.

[Brief description of the drawings]

FIG. 1 is a top sectional view of a mouthpiece 205 according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a top view of the suction body 205 with the suction port cover 107 removed.

FIG. 4 is a rear view of the mouthpiece 205 in FIG.

FIG. 5 is a top view of the mouthpiece 205.

FIG. 6 is a bottom view of the mouthpiece 205.

FIG. 7 is a front view of the mouthpiece 205.

FIG. 8 is a rear view of the suction port cover 107 of the suction body 205.

FIG. 9 is a sectional view of the mouthpiece 205 in FIG. 3 taken along line BB.

FIG. 10 is a sectional view of the mouthpiece 205 taken along line BB in FIG. 3;

11 is an exploded cross-sectional view of the mouthpiece joint 105. FIG.

FIG. 12 is an exploded view of the casing 104.

13 is a sectional view taken along the line CC in FIG. 9;

14 is a sectional view of the shock absorbing bumper 106. FIG.

15 is a sectional view of the shock absorbing bumper 106. FIG.

FIG. 16 is a bottom view of the mouthpiece joint main body 166.

FIG. 17 is a perspective view of an external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 18 is a perspective view of a vacuum cleaner in a packed state according to an embodiment of the present invention.

FIG. 19 is a perspective view showing a packing method of the vacuum cleaner according to one embodiment of the present invention.

FIG. 20 is a perspective view of a mouthpiece of the vacuum cleaner according to one embodiment of the present invention.

FIG. 21 is a perspective view of a suction body of the vacuum cleaner according to one embodiment of the present invention.

FIG. 22 is a perspective view showing a packing state of the suction body of the vacuum cleaner according to one embodiment of the present invention.

FIG. 23 is a perspective view showing a packing state of the suction body of the vacuum cleaner according to one embodiment of the present invention.

FIG. 24 is a sectional view taken along the line DD in FIG. 6;

[Explanation of symbols]

101: suction body, 102: lower case, 103: universal joint, 104: casing, 105: suction joint, 106
… Shock absorbing bumper, 107… Suction port cover, 109…
Upper case, 110: rotating brush, 111: turbine, 2
01 ... vacuum cleaner body, 202 ... hose, 203 ... hose hand part, 204 ... extension pipe, 205 ... mouthpiece, 206 ... switch operation part, 207 ... first infrared light emitting part, 208 ... second infrared light emitting part, 209 ... Infrared light receiving unit.

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 25, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

Patent application title: Suction body of vacuum cleaner and equipped with the same
Vacuum cleaner

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

Here, the moving direction along the longitudinal direction of the suction body 205 is V1, and the moving direction along the short direction of the suction body 205 at right angles to the V1 direction is V2. In addition, V1 direction
The lateral direction and the V2 direction are referred to as traveling directions.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0090

[Correction method] Change

[Correction contents]

[0090]

As described above, according to the present invention, the suction
Push the brush member provided on the lower surface of the mouth
It is attached to the bottom of the suction body
In addition, the life of the wheel can be improved by suppressing the worn wheel . ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 27, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

In order to achieve the above object, the present invention is characterized in that a suction port and a movable
A suction body having a first wheel for use with the suction body.
Having a suction passage that is rotatable and communicates with the suction port.
A connection pipe, and the connection pipe is provided below the mouthpiece main body.
With the rotation of the pipe, the pipe protrudes downward from the mouthpiece body.
Out and rotate in a different direction from the first wheel
And the first wheel on the lower surface of the suction body.
A brush member is disposed outside the rotation axis extension of the
That is , it protrudes below the first wheel .

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Masao Sunagawa 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside the Taga Headquarters, Hitachi, Ltd.Electrical Equipment Division

Claims (5)

[Claims] A suction main body having a suction port on a lower surface thereof, the suction main body having a rotation degree of one or more axes with respect to the suction main body at a rear side of the suction main body; A suction body provided with a suction joint having a suction passage communicating with the suction body, wherein one or more pairs of wheels are provided in front of the lower surface of the suction body, and a floor surface protection member is provided near the wheels. A vacuum cleaner having a suction body, wherein a lower end of the floor surface protection member protrudes below the wheel. 2. A suction main body having a suction port on a lower surface thereof, wherein the suction port is provided at the rear of the suction main body so as to be rotatable with one or more axes of freedom with respect to the suction main body. A suction joint having a suction passage communicating with the suction body is provided, a laterally moving wheel which is disposed to be able to protrude and retract on the lower surface of the suction body and rolls substantially in a lateral direction, and a wheel retracting mechanism for retracting and retracting the laterally moving wheel. Wherein the wheel retracting mechanism is a suction body interlocked with the movement of the suction joint, and one or more pairs of wheels are provided in front of the lower surface of the suction main body, and a floor surface protection member is provided near the wheels. A vacuum cleaner having a suction body, wherein a lower end of the floor surface protection member protrudes below the wheel. 3. A suction main body having a suction port on a lower surface, and a rear side of the suction main body, which is rotatable upward and downward from the horizontal state in a range of approximately 90 degrees from a horizontal state and communicates with the suction port. A casing having a suction passage, and a suction joint provided at a rear portion of the casing, wherein the casing and the suction joint are rotatable around a substantially vertical rotation axis, and a lower surface of the suction main body. A laterally moving wheel that is disposed so as to be able to protrude and retract in a substantially lateral direction, and a wheel retracting mechanism that retracts and retracts the laterally moving wheel. A suction body which is set so that a moving wheel travels from a lower surface of the suction main body, wherein one or more pairs of wheels are provided in front of a lower surface of the suction main body, and a floor surface protection member is disposed near the wheels. , The floor surface protection member A vacuum cleaner having a suction body, characterized in that a lower end of the vacuum cleaner projects downward from the wheel. 4. The vacuum cleaner according to claim 1, wherein the floor protection member is a pile cloth in which pile yarn is woven into a base cloth. 5. The pile cloth according to claim 4, wherein the pile yarns of the pile cloth are woven with an inclination in a certain direction with respect to the base cloth. The vacuum cleaner is disposed on the lower surface of the suction main body so as to be in a closed state.