JP2000041920A - Electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the reduction of the suction performance, and provide a handy type electric vacuum cleaner which is excellent in reliability, and of which the using handiness is favorable by arranging a dust indicator to detect a clogged state in a dust collection chamber, in a lid body which covers the upper part of the dust collection chamber while being housed in a vacuum cleaner main body. 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 102 for floor. In order to keep the airtightness of the dust collection chamber 209, a dust lid packing 232 is attached to a groove 231 of a dust case lid 103. A dust indicator 233 which operates when refuge is accumulated in the dust collection bag 210 is arranged in a space 253 which is formed between the groove 231 to support the dust lid packing 232 and a slope 252 which is an airtight surface of a main body case 204, under a state wherein the dust indicator 233 goes through the groove 231. By this method, the dust indicator 233 is arranged by effectively utilizing the space 253 which has been a dead space, and the decreasing of the dust collection capacity and the reduction of the suction performance are prevented from occurring.

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 handy type vacuum cleaner in which a suction port is directly connected to a main body and operated by operating a handle provided on an upper part of the main body, a packing provided on a dust collection cover is used when a dust collection cover is tightened. The packing on the side of the fulcrum of the fitting portion and the packing receiving portion are configured to be in contact at right angles.

[0003]

However, in the conventional vacuum cleaner, when the packing provided on the dust collecting cover closes the dust collecting cover, the packing on the side which is the fulcrum of the fitting portion and the packing receiving portion are not provided. Because it was configured to contact at right angles, it could be turned up when closing the dust cover.

Further, when the packing is turned up, there is a problem that the air-tightness of the suction side cannot be obtained and the dust-absorbing performance is reduced.

[0005] When removing the filter in front of the electric blower, it is difficult to remove the filter because it is located at the back of the dust collection chamber.

An object of the present invention is to solve the above-mentioned problems, suppress a decrease in suction performance, and provide a highly reliable and easy-to-use vacuum cleaner.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention is characterized by an electric blower and a cleaner body containing a dust collecting chamber for collecting dust sucked by the electric blower; There is provided a lid for covering an upper part of the dust collecting chamber, and a dust indicator for detecting a clogged state in the dust collecting chamber, wherein the dust indicator is disposed inside the lid.

[0008]

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 main 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 cleaner main body 101, 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. Also, the floor suction port 102 is connected.

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

Reference numeral 201 denotes an electric blower. A sound absorbing cover 235 is wound around the electric blower for the purpose of silencing and preventing the spread of fire when the electric blower 201 is burnt out. 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. The mainspring 219, reel A220, 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) 22 provided on the section 226 and the reel support 223.
7. Slip ring (I) 228 holds. The leads 226 of the power cord 206 are connected to the sections 226, respectively, and are screwed to the reels A220, respectively. 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 together with the reels A227 and B228. Rotation does not break the electrical connection. The slip ring (O) 227 and the slip ring (I) 228 each have a terminal for connecting a lead sensor, and by connecting the lead sensor, the power cord 206 and the internal wiring of the main body case 204 are connected.

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 is an extension hose (not shown), in addition to the floor suction port of 102,
Can be connected to various suction ports such as extension pipes (not shown), etc.
The refuse is collected from the floor suction port 102, the extension hose, the extension pipe, various suction ports, and the like, and is collected in the dust collection bag 210 via the suction port holder 207.

A protective filter 212 held by a 211 filter case is installed between the electric blower 201 and the dust collecting bag 210, and spilled dust when the dust collecting bag 210 is replaced is not sucked by the electric blower 201. It has become. Further, the protection filter 212 is provided with a notch, and a rib is protruded from the filter case 211. The notch is held so as to fit into the rib. The vacuum cleaner can be removed without disassembly so that it can be cleaned if necessary. 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 for 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 cover 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 in the camera 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, the floor suction port 102 is attached to the cleaner body 101.
When a handy type vacuum cleaner that is directly connected to and operated by using the handle unit 107 is used for cleaning,
In order to prevent 01 from contacting the floor surface, the floor suction port 102 is in contact with the floor surface, but the cleaner main body 101 must be lifted and used.

On the other hand, on the other hand, 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 portion 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 housed state of the power cord 206 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 for the purpose of preventing 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 is integrally formed with the main body bearing portion 301, and by providing an inclined portion space 245 between the electric blower 201 and the exhaust port 217, this portion is exhausted as shown in FIG. 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.

Also, 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 the outer diameter (that is, the two rollers are inclined so as to become higher toward the opposite position 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, the direction can be easily changed around the main body roller 105 as shown in FIG. The floor suction opening 102 includes a suction base 236 in which brushes 237 are planted at substantially equal intervals around the circumference, a suction roller 238 and a suction roller shaft 239. The mouthpiece base 236 has a structure in which the mouthpiece movable shaft 240 is pivoted about a central axis at a certain angle. Further, the suction port holder 207 and the floor suction port 10 are used.
2 are fitted with each other by tapered portions 241, so that when the cleaner main body 101 is placed on the floor with the floor suction port 102 attached to the suction port holder 207, the main body case is substantially parallel to the floor. Marks A242 and B243 are provided on the 204 side and the floor suction port 102 side, respectively.

Conventionally, the bottom surface of the floor suction port 102 is
When the entire surface 7 was in contact with the cleaning surface and the floor suction port 102 was slid and the cleaning was repeated, the brush 237 made of nylon was worn and the suction base 236 directly contacted the cleaning surface, and there was a possibility of scratching or contamination.

In the present embodiment, the portion where the suction roller 238 contacts 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, and the floor surface can be prevented from being damaged.

When the floor mouthpiece 102 is bent and attached to the mouthpiece holder 207, the end of the mouthpiece base 236 is pressed against the floor surface, and the brush 237 in that part is partially cut off, and the mouthpiece stand 236 is removed. Directly touching the floor surface and damaging the floor surface can be prevented by disposing 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 floor suction port 102 is provided with an R section 24 for reducing noise caused by the wind noise of the suction port 246.
7, 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, the movement of the dust case 103 when the dust case 103 is opened and closed depends on the protrusion 2 of the dust case lid 103.
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 portion (not shown) of the main body case 3 and the main body case 204 is unlocked, and as shown in FIG. 12, the locus 901 traces 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 the present 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 21
2 is not hidden by the main body case 204, and can be easily removed.

Here, the dust indicator 233 is a relatively large component, and if 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 slope (sloped surface 252) which is an airtight surface 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
The engaging portion B259 has a pocket-like structure 255 (hereinafter, referred to as a pocket portion), and furthermore, when the dust collection bag 210 spreads in the dust collection chamber 209, so that 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.

[0045]

According to the present invention as described above,
The airtight surface has an arbitrary angle with respect to the center line of the fulcrum part of the engaging part of the dust collection lid, and the dust collection lid is inclined forward by
A highly reliable vacuum cleaner can be provided without losing airtightness.

Further, according to the present invention, by extending the packing receiving portion to the front side, the filter on the front side of the electric blower can be easily removed, and an easy-to-use vacuum cleaner excellent in maintenance can be provided. Can be.

Further, according to the present invention, by providing an indicator utilizing the space formed between the dust collecting lid and the packing receiving portion on the main body side, an easy-to-use electricity can be provided without reducing the dust collecting volume. A 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 illustrating a case where two body rollers are used.

FIG. 8 is a diagram illustrating a case where two body rollers are used.

FIG. 9 is a diagram showing a center of gravity of the vacuum cleaner.

FIG. 10 is a 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]

101: vacuum cleaner body, 103: dust case lid, 105
... Body rollers, 201 ... Electric blower, 209 ... Dust collection chamber,
231, a groove, 232, a dust cover packing, 233, a dust indicator, 234, a dust cover.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Ryuji Suzuki 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Within Tachitaga Technology Co., Ltd. (72) Keiichi Yabe 1-1-1, Higashitaga-machi, Hitachi City, Ibaraki Prefecture No. 1 Sun Tatega Technology Co., Ltd. F-term (reference) 3B062 AK01 AK11

Claims (2)

[Claims] 1. A cleaner main body for accommodating an electric blower and a dust collecting chamber for collecting dust sucked by the electric blower, a lid covering an upper part of the dust collecting chamber, and a clogging state in the dust collecting chamber. A dust indicator for detection, wherein the dust indicator is arranged inside the lid. 2. The vacuum cleaner according to claim 1, wherein the dust indicator is disposed so as to straddle the airtight surface of the dust collecting chamber.