JP2000041909A - Electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handy type electric vacuum cleaner which can prevent a surface to be cleaned from being scratched or fouled by connecting a suction port body to a vacuum cleaner main body and communicating with a dust collection chamber arranged on a suction port base which is turnably attached to a suction port main body with a turning shaft, and a suction port roller is arranged closer to the vacuum cleaner main body side than the turning shaft. SOLUTION: When a suction force is generated by driving an electric blower 201, refuge is accumulated in a dust collection bag 210 in a dust collection chamber 209 through a suction port holder 207 and a suction port body 100. The suction port body is constituted of a suction port main bdoy 102, a suction port base 236 which is arranged under the suction port main body 102, and on the periphery of which, a brsh 237 is flocked, and a suction port roller 238 which is arranged on the suction port base 236 and is axially supported by a suction port roller shaft 239. The suction port base 236 is turnably arranged on the suction port main body 102 with a suction port movable shaft 240. The suction port roller 238 is projected lower than the suction port base 236, and also, is located higher than the brsh 237. By this method, even when the brsh 237 is worn out, the suction port base 236 is prevented from coming into contact with a floor surface, and the floor surface is prevented from being scratched or fouled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vacuum cleaner,
In particular, it relates to a handy type vacuum cleaner.

[0002]

2. Description of the Related Art In a conventional hand-held type vacuum cleaner, when cleaning, the bottom surface of the suction opening is in contact with the cleaning surface with the entire brush, and the suction opening is slid and cleaned.

[0003]

However, the conventional vacuum cleaner has a drawback that the brush made of nylon is worn by repeated cleaning, and the surface to be cleaned is damaged or stained.

Further, when the mouthpiece is bent and attached, the brush on the bottom face of the mouthpiece is pressed against the cleaning surface, causing the brush to be partially worn and causing the cleaning surface to be scratched and stained as described above.

[0005] An object of the present invention is to solve the above-mentioned problems and to provide a vacuum cleaner in which the surface to be cleaned is prevented from being scratched or stained.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a feature of the present invention is that a vacuum cleaner for accommodating an electric blower and a dust collection chamber for collecting dust sucked by the electric blower. A main body, a substantially rectangular suction body connected to the cleaner body and communicating with the dust collection chamber, wherein the suction body is disposed in the same direction as the suction main body and the longitudinal direction of the suction main body. A rotating shaft, a suction base provided on the rotating shaft so as to be rotatable with respect to the suction main body, and a suction base provided on the suction base and disposed closer to the cleaner body than the rotating shaft. And a suction roller provided.

[0007]

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

FIG. 2 is an external view of a vacuum cleaner according to the present invention.

A dust case cover 103 is attached to the cleaner body 101 in a normal use state, and debris accumulates in a dust collection bag (not shown) set in a dust collection chamber (not shown). In this case, the dust case cover 103 is removed and the dust is discarded.

The handle 107 is formed integrally with the main body 101 of the cleaner, and a switch 104 for operating the cleaner is provided on the upper surface thereof. Further, a main body roller 105 is provided at a rear portion of the main body 101 of the cleaner. In this figure, the power cord outlet 106 is located on the side of the cleaner main body 101 and is provided with a cord opening rib 108. The mouthpiece 100 is connected.

FIG. 1 is a sectional view of a vacuum cleaner according to the present invention.

Reference numeral 201 denotes an electric blower, around which a sound absorbing cover 235 is wound for the purpose of silencing and preventing the spread of fire when the electric blower 201 is burnt out, and a main body case is provided via a vibration-proof rubber F202 and a vibration-proof rubber R203. It is installed inside 204. Exhaust port 217 provided at the rear of main body case 204
A cord reel 218 for winding the power cord 206 is provided between the electric fan 201 and the electric blower 201. Code reel 218
Is spring 219, reel A220, reel B221,
The mainspring cover 222 and the reel support 223 constitute a space 224 for the mainspring (hereinafter referred to as a barrel) and a space A225 for winding the power cord 206. They also include a mainspring 219, a reel A220, and a reel B22.
1, after incorporating the power cord 206 and the like, the spring cover 222
9 can be assembled by screwing it on a shaft for winding it up.

The power cord 206 and the electric blower 201
And the other electrical components are connected by the slip ring (O) 227 provided on the section 226 and the reel support 223,
This is realized by the slip ring (I) 228. Section 226
Are connected to a lead cable of a power cord 206, respectively, and are respectively screwed to the reel A220. Further, a slip ring (O) 227 and a slip ring (I) 228 are arranged so as to face the electrical contact portions of the respective pieces 226. Since these are ring-shaped, the pieces 226 are formed together with the reel A 227 and the reel B 228. Rotation does not break the electrical connection. The slip ring (O) 227 and the slip ring (I) 228
Each has a terminal for connecting a reed sensor, and by connecting the reed sensor here, the internal wiring of the main body case 204 is connected from the power cord 206.

The electric components are connected by connecting a power fuse 206, a current fuse 229, a switch 104, and an electric blower 201 in series.
The current fuse 229 is provided to perform an ON-OFF operation of the 201, and is provided for the purpose of protection when an excessive current flows such as when the electric blower 201 is short-circuited. Further, a condenser 230 is connected in parallel with the electric blower 201 in order to reduce radiation noise generated when the electric blower 201 is operated.

The electric blower 201 is driven by electric power from the power cord 206 to generate a suction force. Reference numeral 207 denotes a suction holder which is in close contact with the packing 208 and communicates with the dust bag 210 disposed in the dust chamber 209. Suction holder 20
7 can be connected to various suction ports such as an extension hose (not shown), an extension pipe (not shown), etc., in addition to the suction port 102, and dust can be connected to the suction port 100, an extension hose, an extension pipe, various Collected from the suction port, etc., and passed through the suction port holder 207 to the dust collection bag 2
It is designed to accumulate at 10. A protection filter 212 held by a 211 filter case is installed between the electric blower 201 and the dust collecting bag 210, so that spilled dust when the dust collecting bag 210 is replaced is not sucked by the electric blower 201. ing. Also protection filter 2
12 has a notch, and the filter case 21
1 has a rib, which is held so that the notch fits into the rib. If dirt adheres and gets dirty, the vacuum cleaner must be disassembled so that the user can clean it if necessary. It has a structure that can be removed even if it is.
The exhaust chamber 205 and the dust collection chamber 209 are separated by a main body case rib 213. When replacing the dust collection bag 210, the dust case cover 103 is removed and the clamp 215 is raised to perform replacement. However, the dust case cover 103 is not closed by the clamp 215 unless the dust collection bag 210 is set.

The dust case lid 103 has a dust collecting chamber 209.
In order to keep the airtight, dust cover packing 232 is
Is attached. Also, the dust collection bag 210 set inside
A dust indicator 233 that operates when dust accumulates is attached. After the dust indicator 233 is attached to the dust case cover 103, the dust indicator 233 is covered with a dust cover 234.

The main body roller 105 has a roller bearing 216.
Is molded (in-molded) so as to be wrapped in a soft resin such as vinyl chloride (PVC).
14, it is rotatably attached to the main body case 204. The roller shaft 214 is provided with the main body roller 10.
Header processing or cutting processing is performed so as not to rotate with 5, and a flat portion is provided on a round shaft to prevent rotation. Further, the main body roller 105 is located behind the main body case 204, and is provided with an inclined portion 244 at a front portion thereof.

Conventionally, in a handy type vacuum cleaner in which the suction body 100 is directly connected to the cleaner main body 101 and the handle portion 107 is operated, the cleaner main body 10 is used for cleaning.
In order for 1 to prevent contact with the floor, the suction body 100 is in contact with the floor, but the cleaner body 101 must be lifted and used.

However, on the other hand, it has been difficult to reduce the weight because there are many voices such as improvement in dust absorption performance (increase in size of the electric blower 201) and incorporation of the power cord 206 into the cord reel 218 (increase in mass).

In this embodiment, the main body roller 105 is provided at the rear part of the main body case 204, so that the cleaner main body 10 is provided.
It is not necessary to lift and use the roller 1, and the main body roller 105 can be moved while rolling on the floor, so that operability can be reduced. When the power cord 206 is in a housed state, such as when the cord reel 218 is located behind the main body case 204 as in the present embodiment, the plug blade is connected to the power cord outlet 106.
Power cord outlet 106 to prevent the floor from being damaged when the cleaner body 101 is tilted.
Of the main body roller 10 as in this embodiment.
5 is provided at the rear. Further, as shown in FIG. 3, the plug blade in the state where the power cord 206 is stored is located at a location as shown by a dotted line in FIG. 3, so that when the cleaner main body 101 falls down, the cord opening is provided to prevent the floor from being damaged. A rib 108 is provided. Here, when the cleaner main body 101 is tilted toward the cord opening rib 108 side, the line connecting the main body roller 105 and the cord opening rib 108 and the floor surface become the same. 301
Is the same as or inward of the line (opposite the floor surface), thereby preventing the floor from being damaged by the main body side bearing portion 301 that is difficult for the user to reach when the cleaner main body 101 is tilted. be able to.

Further, as shown in FIG. 4, when going over a step of a sill during cleaning, an impact is applied in a direction substantially opposite to the traveling direction.
Or it may not be possible to get over the steps. When an impact is applied in the direction as shown in FIG.
The portion 01 is difficult to reinforce due to its structure. In the present embodiment, by providing an inclined portion 244 integral with the main body side bearing 301 at the front portion of the main body roller 105, the vehicle slides over a step of a sill, etc., and as shown in FIG. Becomes advantageous. In addition, it is possible to reduce the inability to get over the step.

Further, as shown in FIG. 1, the inclined portion 244 has an integral structure with the main body bearing portion 301, and an inclined portion space 245 is provided between the electric blower 201 and the exhaust port 217. It acts as a wind expansion chamber, and a noise reduction effect is obtained, so that noise generated by the electric blower 201 can be reduced.

If the diameter φB at the end is smaller than the diameter φA at the center of the main body roller 105 as shown in FIG.
01 can be easily tilted, and the turning property can be improved.

Further, as shown in FIG.
When two of the rollers 1 are used, the left and right rollers are separately rotated when they are turned, so that the turning property can be improved as described above.

Further, as shown in FIG. 8, the diameters of the two rollers are made larger on the opposite side than on the outer diameter (ie, the two rollers are inclined so as to become higher toward the opposing positions of the two rollers). Thus, the turning property can be improved in the same manner as described above.

By providing the main body roller 105 below the center of gravity of the cleaner main body 101 as shown in FIG. 9, it is easy to change the direction around the main body roller 105 as shown in FIG. The mouthpiece 100 is provided with a brush 23 at substantially regular intervals around a mouth body 102 and a periphery provided below the mouth body 102.
7 and a suction roller 238 supported by a suction roller shaft 239 disposed on the suction table 236. The suction base 236 includes a suction movable shaft 240.
Is provided on the suction main body 102 so as to be rotatable around the central axis. Further, the mouthpiece holder 207 and the mouthpiece 100 are fitted with each other at the tapered portion 241, and the cleaner body 101 is attached with the mouthpiece 100 attached to the mouthpiece holder 207.
When placed on the floor, marks A2 are provided on the body case 204 side and the suction body 100 side, respectively, so as to be substantially parallel to the floor.
42 and a mark B243.

Conventionally, the bottom of the mouthpiece 100 has a brush 237
When the entire surface is in contact with the cleaning surface and the suction body 100 is slid and the cleaning is repeated, the brush 237 made of nylon is worn and the suction base 2 is worn.
36 directly contacted the cleaning surface, possibly causing scratching and contamination.

In this embodiment, the position where the suction roller 238 comes into contact with the floor surface is located below the suction base 236 and above the brush 237, so that the brush 2
Even if the 37 is worn, the suction base 236 does not directly touch the floor surface, so that the floor surface can be prevented from being damaged.

When the mouthpiece 100 is bent and attached to the mouthpiece holder 207, the end of the mouthpiece 236 is pressed against the floor surface, and the brush 237 in that part is partially reduced, and the mouthpiece 236 is directly The floor surface is damaged by touching the floor surface, but this can be prevented by arranging the suction roller 238 at the end of the suction base 236.

The suction roller 238 is connected to the suction movable shaft 240.
Even if it is arranged at the end of the mouthpiece 236 behind and below, the floor surface can be prevented from being damaged as described above.

As shown in FIG. 1, the mouthpiece 100 has an R portion 247 for reducing noise caused by the wind noise of the suction port 246.
Is provided, and a space B248 is formed below this. In FIG. 11, a suction roller 238 is provided in the space B248, and the space B248 also serves as a storage portion for the suction roller 238, whereby the shape is simplified and the weight can be reduced.

In FIG. 1, when the dust case 103 is opened and closed, the movement of the dust case
The reference numeral 49 designates the engaging portion A250 of the main body case 204 as a fulcrum.
1. Put your finger on 1 and pull it up.
The engagement between the fitting portions (not shown) of the main body case 3 and the main body case 204 is unlocked, and as shown in FIG. 12, the trajectory 901 follows a circular motion with the engaging portion A250 as a fulcrum.

Here, in the conventional vacuum cleaner, as shown in FIG. 13, an airtight surface is formed so as to pass substantially below the engaging portion A250 and surround the dust collecting chamber 209, and the airtight surface is formed at a fulcrum portion. It was configured at right angles to the center line. In this case, the airtight dust lid packing 232 located substantially below the engagement portion A250 is used when the user closes the dust case lid 103 to follow a trajectory 901 as shown by an arrow in FIG. As shown in FIG. 14, the end of the dust cover packing 232 is turned up, so that the airtightness of the dust collecting chamber 209 cannot be maintained. If the end of the dust cover packing 232 is turned up for a long time, the dust cover 103 cannot be returned to its original state even if the dust case cover 103 is removed, and the airtightness of the dust collection chamber 209 cannot be maintained.

In this embodiment, the airtight surface is inclined forward at an arbitrary angle with respect to the center line of the fulcrum (the inclined surface 25).
2) By doing so, it is possible to prevent the end of the dust cover packing 232 from being turned up as described above, and to maintain good airtightness.

The inclined surface 252 is extended to the front side, and a part of the electric blower 201, the vibration isolating rubber F202
By setting the filter case 211 and the protection filter 212 partially or entirely, the protection filter 212 is located on the front side of the dividing line between the dust case 103 and the main body case 204, and the protection filter 2
12 can be easily removed without being hidden by the main body case 204.

Here, the dust indicator 233 is a relatively large component, and if it is provided in the dust collection chamber 209, it takes up space and reduces the dust collection volume.

In this embodiment, the space C253 formed between the groove 231 for supporting the dust lid packing 232 on the projection side of the dust case lid 103 and the inclined surface (inclined surface 252) of the main body case 204 is provided. Dust indicator 2
33 is provided so as to penetrate the groove 231.

Here, the claw portion 258 of the dust lid cover 234
Is formed into a pocket-like structure 255 (hereinafter, referred to as a pocket portion), and when the dust collection bag 210 spreads in the dust collection chamber 209, the air passage 254 of the dust indicator 233 is not blocked. Front pocket 255
Is provided.

Further, as shown in FIG.
A rib A501 may be provided on the front part or side part of 33.

From the above, the wasted space C
253 can be effectively used to prevent a reduction in the dust collection volume.

When cleaning, the cleaner body 10 is
Since the lifter 1 is used while being lifted, the hand may be slipped or inadvertently dropped. In the vacuum cleaner body 101, the heavy electric blower 201 forms an airtight surface with the vibration-proof rubber F202 and the body case rib 213. However, there was a case where the airtightness could not be obtained due to the deviation, and the suction performance was sometimes reduced.

In this embodiment, the main body boss 4 shown in FIG.
01 is a position where it does not contact the housing 256 and the core 257 of the electric blower 201 inside the cleaner main body 101, and a position where the electric blower 201 can return to a position necessary for maintaining airtightness when it is dropped by any chance ( In this embodiment, the distance between the housing 256 and the main body boss 401 is 2 to 2.
By providing the main body boss 401 at 3 mm), the performance can be maintained without losing airtightness.

[0043]

As described above, according to the present invention, a vacuum cleaner having good operability can be provided by providing a roller on the bottom surface of the suction opening.

Further, according to the present invention, by providing the roller at the bottom surface of the suction port behind the movable shaft of the suction port, the abrasion of the brush is reduced, and the cleaning surface is prevented from being scratched or stained. be able to.

Further, according to the present invention, by providing the roller on the bottom surface of the suction opening at the position of the countermeasure for wind noise, the wheel storage portion can be provided without largely changing the conventional shape, and the operability is good. An electric vacuum cleaner can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing a central cross section of a vacuum cleaner according to the present invention.

FIG. 2 is a diagram showing the overall configuration of the electric vacuum cleaner according to the present invention.

FIG. 3 is a rear view when the vacuum cleaner according to the present invention is tilted.

FIG. 4 is a diagram illustrating a case where a main body roller hits a step.

FIG. 5 is a diagram illustrating a case where a main body roller gets over a step.

FIG. 6 is a diagram illustrating an appearance of a main body roller.

FIG. 7 is a diagram (part 1) illustrating a case where two body rollers are used.

FIG. 8 is a diagram (part 2) illustrating a case where two body rollers are used.

FIG. 9 is a diagram (front view) showing the center of gravity of the vacuum cleaner.

FIG. 10 is a plan view showing a center of gravity of the vacuum cleaner.

FIG. 11 is a diagram illustrating an example of a mounting position of a floor roller.

FIG. 12 is a view showing the operation of a dust case lid.

FIG. 13 is a diagram showing a conventional dust case lid and an airtight surface.

FIG. 14 is a diagram showing whether or not the dust cover packing is turned up;

FIG. 15 is a diagram showing a position of a main body boss.

FIG. 16 is a diagram showing the flow of exhaust air from the electric blower.

FIG. 17 is a view of the dust case lid as viewed from the dust collection chamber side.

[Explanation of symbols]

100: suction body, 101: cleaner body, 102: suction body, 236: suction base, 237: brush, 238: suction roller, 239: suction roller shaft, 240: suction movable shaft.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masataka Kaji 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside Hitachi Taga Technology Co., Ltd. No. 1 Sun Tachiga Technology Co., Ltd.

Claims (1)

[Claims] A cleaner main body containing an electric blower and a dust collection chamber for collecting dust sucked by the electric blower;
A substantially rectangular suction body connected to the cleaner body and communicating with the dust collection chamber, wherein the suction body is provided with a suction main body and a rotating shaft disposed in the same direction as a longitudinal direction of the suction main body. A suction base that is rotatably disposed on the rotation shaft with respect to the suction main body; a suction base that is disposed on the suction base, and is disposed closer to the cleaner body than the rotation shaft. A vacuum cleaner having a suction roller.