JPH0856875A - Suction device for vacuum cleaner - Google Patents

Abstract

PURPOSE: To develop wiping and polishing function such as swabbing, in a suction device for a vacuum cleaner having a raised fabric roller element being attached thereto and freely tumbling on a surface to be cleaned, by providing a brake means prescribing the movement in one rotary direction of the raised fabric roller element. CONSTITUTION: When a hard floor surface is cleaned, a changeover lever 41 is changed over to a floor side to increase the degree of freedom in the up-and- down direction of a brake wheel 37 and, when a floor suction device main body 31 is moved forwardly in this state, the brake wheel 37 is rotated in a direction biting into a wedge-shaped space by the rotation of a raised fabric roller element 23, that is, the rotation of a cylindrical roller 22, and deeply bites into the wedge-shaped space to bite into the gap between a planar part 36 and the peripheral surface of the cylindrical roller, and the resistance acting against rotation is imparted to the cylindrical roller 22 to prevent the free revolution thereof. That is, the raised fabric roller element 23 is stopped in its revolution at the time of the forward movement of the floor suction device main body 31 and develops swabbing-like function to manifest sufficient wiping capacity on a floor surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor suction device for an electric vacuum cleaner.

[0002]

2. Description of the Related Art First of the conventional suction tools for electric vacuum cleaners of this type.
As an example of the above, there is one disclosed in Japanese Patent Laid-Open No. 2-295527. 38 and 39 show the first example of this prior art.
(Japanese Patent Laying-Open No. 2-295527),
FIG. 38 is a perspective view of a bottom surface portion of the floor suction tool, and FIG. 39 is a vertical cross-sectional view of a main portion thereof.

In this first conventional example, a main body 1 of a floor suction tool is formed by connecting an upper case 2 and a lower case 3, and a suction side of a main body of an electric vacuum cleaner (not shown) is formed at the center of a rear portion thereof. A connecting pipe 4 communicating with a hose is attached to the. A suction port 5 connected to the connecting pipe 4 is formed substantially in the center of the lower case 3, and suction grooves 6 are provided on the left and right of the suction port 5. A mounting seat 7 in the form of a tape is formed on the outer peripheral portion before and after the suction groove 6, that is, on the contact surface with the floor surface of the floor suction tool.
A napped cloth 8 made of a cut pile spun cloth is adhered and fixed to the upper surface of the.

In the first conventional example, the raising cloths 8 provided on the front and rear outer peripheries of the suction groove 6 serving as the contact surface with the floor surface of the floor suction tool are the same when they contact the surface to be cleaned. Since it comes into contact with the surface, it feels soft when touching and is well-fitted, and acts like wiping the surface with a rag. Therefore, the conventional floor suction tool of the first example has a function of wiping and polishing a hard flat surface such as a flooring floor in addition to the function of sucking dust.

As a second example of the conventional suction device for an electric vacuum cleaner, as shown in, for example, Japanese Patent Laid-Open No. 261039/1993, both front end portions of the suction port on the lower surface of the floor suction device body. The nap cloth described in the above-mentioned first conventional example (FIGS. 38 and 39) is arranged, and the nap cloth is arranged behind the suction port by being attached to a roller body that can freely rotate in the front-rear direction,
There is one that enables light operation on the carpet as well as on the wooden floor and tatami without any switching operation.

A third example of a conventional suction tool for an electric vacuum cleaner is disclosed in, for example, Japanese Patent Application Laid-Open No. 4-44731. 40 and 41 show a third conventional example (Japanese Patent Laid-Open No. 4-44731).
FIG. 40 is a perspective view of a bottom surface portion of the floor suction tool, and FIG. 41 is a vertical cross-sectional view of a main portion thereof. In each drawing, a portion corresponding to the above-described first conventional example (FIGS. 38 and 39). Are given the same reference numerals.

The third example of the prior art is the lower case 3
The suction port formed in the above is separated into a front suction port 5a and a rear suction port 5b which are parallel to each other, and these suction ports 5a, 5
A roller body storage cylinder 11 made of an anti-splitting cylinder having an opening 11a at the bottom is arranged between b and the roller body storage cylinder 11
In addition, a hole 11b is formed on the peripheral surface thereof so as to be continuous with the air passage 12, and a raised cloth 8 is formed inside the hole 11b so as to cover the opening 11a.
Napped roller body 14 formed by attaching a roller to the sector roller 13
And the raised fabric roller body 14 is within a predetermined angle (36
The rotation is restricted to 0 ° or less and the reciprocating rocking can be performed so that the fluffing tip of the napped roller body 14 can come into contact with the lower opening edge portion of the roller body housing cylinder 11 and its inner wall portion during the reciprocating rocking. I am trying.

In the third conventional example, when the raised fabric roller body 14 reciprocally swings, the raised tip is rubbed against the lower opening edge portion of the roller body housing cylinder 11 and its inner wall portion, and Dust adhering to 8 is scraped off and the air passage 12
It is sucked in and collected.

A fourth example of the conventional suction tool for an electric vacuum cleaner is disclosed in, for example, Japanese Patent Laid-Open No. 261035/1993. 42 to 44 show a fourth example of this prior art (Japanese Patent Laid-Open No. 5-261035), and FIG. 42 is a perspective view of the bottom surface of the floor suction tool, and FIG.
FIG. 44 is a longitudinal sectional view of the main part, and FIG. 44 is an exploded perspective view of the main part. In each of the drawings, the third conventional example (FIG. 40, FIG.
The same reference numerals are given to the portions corresponding to 1).

The fourth example of the prior art is the lower case 3
The supporting rollers 21 are attached to the left and right ends of the front part of the lower case 3 and the raising cloth 8 is attached to the cylindrical roller 2 at the rear part of the lower case 3.
The raising cloth roller body 23 wound around the two is detachably installed, and the raising cloth 8 can be washed by removing the raising cloth roller body 23. That is, the raising cloth roller body 23 has a stepped cylindrical holder 24 at both ends thereof.
Is fitted and fixed, and the shaft portion 25a of the poppet-shaped bearing member 25 is slidably inserted into the center hole 24a of each holder 24. In the bearing member 25, the tip of the shaft portion 25a is formed in a split manner, and the claws 25 are formed on the outer circumference of the split portion, respectively.
When the shaft portion 25a is inserted into the central hole 24a of the holder 24, each claw 25b can be engaged with the inner end surface of the holder 24, so that it can be removed from the holder 24. Is being prevented. A rectangular protrusion 25c is formed on the outer end surface of the head portion of the bearing member 25. The protrusion 25c is fitted into a rectangular hole 3a formed in the lower case 3 and is supported in a state in which its rotation is restricted. It has become so. Further, a coil spring 26 that constantly urges the bearing member 25 in the outward direction (the direction in which the pawl engages with the holder) is disposed between the inner end surface of the bearing member 25 and the outer end surface of the holder 24. ing. Therefore, the raising cloth roller body 23, the holder 24, the bearing member 25, and the coil spring 26 are integrated by assembly.

In the fourth conventional example, the raised cloth roller body 23 is attached to the lower case 3 for cleaning the raised cloth 8.
To remove more, first, the raised fabric roller body 23 is grasped by hand, and in that state, it is moved to one side in the axial direction, and the head of the bearing member 25 located at the tip in the moving direction is resisted against the biasing force of the coil spring 26. Move it to the holder 24 side. By this movement, the protrusion 25c of the head portion of the bearing member 25 located at the rear end in the moving direction comes out of the rectangular hole 3a of the lower case 3. Therefore, by tilting the raising cloth roller body 23 from that state, the raising cloth roller body 23 Can be detached from the lower case 3. Bearing member 25 that has been moved to the holder 24 side
After returning from the lower case 3 of the napped roller body 23, the urging force of the coil spring 26 returns to the original position.

[0012]

In the first example (FIGS. 38 and 39) of the conventional suction tool for the electric vacuum cleaner, since the raising cloth 8 is formed in a flat shape as described above, On the carpet, there is a problem that the floor suction device is difficult to move due to frictional resistance caused by the contact between the raised fabric 8 and the carpet bristles. Furthermore, in the case of the raised fabric 8 having a flat surface, dust is clogged in the eyes of the raised fabric 8 and the surface to be cleaned is wiped while being soiled, and there is a problem that the surface to be cleaned is scratched by the dust.

In the second example of the conventional suction device for the electric vacuum cleaner, since the raised fabric is attached to the rotatable roller body, a light operation can be obtained even on a carpet, but the original purpose is obtained. One of the drawbacks is that some wiping features are less than satisfactory.

In the third example of the conventional vacuum cleaner suction tool (FIGS. 40 and 41), the raising cloth roller body 14 is rotated within 360 ° by the reciprocating motion of the floor suction tool. Since it is restricted, it is scraped only once during one way (forward or backward), and a sufficient cleaning effect cannot be obtained.

Further, the fourth example of the conventional suction tool for the electric vacuum cleaner (FIGS. 42 to 44) is a raised cloth roller body 2.
3, holder 24, bearing member 25, and coil spring 26
Are assembled and assembled independently, the raised cloth roller body 23 is attached to the lower case 3 for cleaning the raised cloth 8.
The coil spring 26 cannot be separated from the napped roller body 23 even if it is removed from the nap, and if the napped cloth 8 is washed with water, the coil spring 26 may be rusted and the operation of the bearing portion may become defective, making it impossible to attach / detach. There is. Further, the brushed roller body 2
When 3 is provided to the consumer as a consumable item, it becomes a high cost item and disadvantageous.

The present invention has been made in view of the above points, and a first object thereof is to wipe or polish a hard flat surface such as a wooden floor surface or a tatami mat surface by the action of a raised cloth, such as wiping and polishing. An object of the present invention is to obtain a suction device for an electric vacuum cleaner which can have a sufficient function and can be lightly operated even on a carpet.

A second object of the present invention is to reliably scrape dust adhering to the napped cloth when the floor suction device is moved forward or backward, so that the napped cloth can be cleaned for a long period of time. To obtain a vacuum cleaner suction tool that can be kept at.

Further, a third object of the present invention is that the bearing portion having the stroke adjusting function of the napped roller body can be separated from the napped roller body, so that the occurrence of malfunction can be prevented and the replacement part. The purpose is to obtain a suction device for a vacuum cleaner that can be supplied at low cost.

[0019]

According to a first aspect of the present invention, there is provided a suction tool for an electric vacuum cleaner, which is attached to a suction tool main body and rotates a raised cloth roller body which freely rolls on a surface to be cleaned. Is provided with a braking means for restricting the rotation in one direction.

Further, in the suction tool for an electric vacuum cleaner according to a second aspect of the present invention, the braking means is provided on a part of a wall surface of the suction tool body facing the raised cloth roller body peripheral surface and the raised cloth is provided. A flat surface portion forming a wedge-shaped space with the roller body peripheral surface, and a flat surface portion disposed in the wedge-shaped space and interposed between the flat surface portion and the napped roller body peripheral surface to prevent the woven cloth roller body from rotating in one direction. It is composed of a brake wheel that restricts movement.

Further, in the suction tool for an electric vacuum cleaner according to a third aspect of the present invention, the braking wheel is housed in the suction tool body, and one end of the brake wheel is attached to the projecting portion of the swing lever that projects outward. Along with the other end of the swing lever, there is provided an engagement releasing means for operating the swing lever in a direction to disengage the braking wheel from the engagement position between the flat surface portion in the wedge-shaped space and the raised cloth roller body peripheral surface. It is provided.

Further, in the suction tool for a vacuum cleaner according to a fourth aspect of the present invention, the engagement releasing means is composed of a solenoid, and a hand operation of a hose connecting the suction tool body and the vacuum cleaner body is performed. The switch of the solenoid is provided in the section.

Further, in the suction device for an electric vacuum cleaner according to a fifth aspect of the present invention, a hole is provided in the suction device body in the vicinity of the swing lever protrusion so as to directly communicate with the air passage in the suction device body. It is a thing.

According to a sixth aspect of the present invention, there is provided a suction tool for an electric vacuum cleaner, wherein a portion of the suction tool body facing the raised cloth roller body peripheral surface is in contact with a raised portion of the raised cloth roller body. ,
A scraping unit is provided for scraping dust attached to the raised portion when the raised cloth roller body rotates in the free direction.

Further, according to a seventh aspect of the present invention, there is provided a suction tool for an electric vacuum cleaner, wherein a shaft portion of the raised cloth roller body is provided in at least one of bearing portions on both ends of the raised cloth roller body of the suction body. A holder is provided for elastically supporting.

Further, in the suction tool for an electric vacuum cleaner according to an eighth aspect of the present invention, two raised cloth roller bodies that freely roll on the surface to be cleaned are arranged in the front and rear of the suction tool body.
Braking means is provided for restricting the rotation of the raised fabric roller body when it comes to the rear side in the suction tool traveling direction.

According to a ninth aspect of the present invention, there is provided a suction tool for an electric vacuum cleaner, wherein the braking means of the eighth aspect forms a wedge-shaped space between the braking means and the peripheral surface of each raised fabric roller body. The braking wheel holder having a sloped surface and arranged between both raised fabric roller bodies, and the braking wheel holder supported on both sides of the Λ-shaped sloped surface of the braking wheel holder so as to be arranged in each wedge-shaped space. From a pair of braking wheels, which are independently interposed between the Λ-shaped slope and the peripheral surface of each nap cloth roller body, and which regulate the rotation of these nap cloth roller bodies when the rear side is in the suction tool traveling direction. It is composed.

According to a tenth aspect of the present invention, there is provided a suction tool for an electric vacuum cleaner, wherein the suction wheel main body is provided in the suction tool body via a biasing means for biasing the braking wheel holder in a direction of pulling the braking wheel holder away from each raised cloth roller body. In addition to being mounted, engagement holding means for holding the brake wheel holder on the side of each raised cloth roller body against the biasing force of the biasing means is provided.

In addition, in the suction tool for an electric vacuum cleaner according to an eleventh aspect of the present invention, two cylinder rollers, which freely roll on the surface to be cleaned, are arranged on the suction tool body at the front and rear, and these cylinders are provided. The rollers are wound with surface materials having different properties.

[0030]

In the first aspect of the present invention, since the braking means regulates the rotation of the freely rolling nap cloth roller body in one direction of the rotational direction, the nap cloth roller body is provided before and after the suction tool body. The rotation is stopped in any of the moving directions, and in this state, it slides on the surface to be cleaned and exerts sufficient wiping performance on a hard floor surface such as a rag.

Further, in the second aspect of the present invention, the braking means is provided on a part of the wall surface of the suction tool body facing the napped roller body peripheral surface and between the napped roller body peripheral surface. A flat portion that forms a wedge-shaped space, and a braking wheel that is disposed in the wedge-shaped space and that is interposed between the flat portion and the peripheral surface of the napped roller body to restrict movement of the napped roller body in one direction in the rotational direction. Since the suction wheel body is moved in either the front or rear direction, that is, when the raised fabric roller body rotates in the direction in which the braking wheel bites into the wedge-shaped space, the braking wheel automatically wedges. It penetrates into the interior of the space and bites between the flat surface portion and the peripheral surface of the napped roller body, and the napped roller body is given a resistance against the rotation to stop its free rotation. Also,
When the suction tool body moves in the opposite direction, that is, when the raised fabric roller body rotates in the direction of releasing the braking wheel from the biting position in the wedge-shaped space, the wedge action of the braking wheel is automatically released and the raising fabric is The roller body freely rolls on the floor surface as the suction tool body moves. This operation is repeated each time the suction tool body reciprocates. Therefore, according to the second aspect of the present invention, the wiping function for the hard floor surface can be obtained with a simple structure in which the braking wheel bites by the wedge action.

Further, in the invention of claim 3 of the present invention, the brake wheel is attached to the projecting portion of the swing lever which is housed in the suction body and has one end projecting to the outside. Since the engagement releasing means for operating the swing lever in the direction of disengaging the braking wheel from the engagement position between the flat surface portion in the wedge-shaped space and the raised cloth roller body peripheral surface is provided near the end, When using the suction device on a carpet that does not require a wiping function, by releasing the braking wheel from the engagement position by switching the engagement release means,
The raised cloth roller body can be freely rotated when the suction tool body is moved in the front-rear direction, and a light operation can be obtained even on a carpet.

Further, in the invention of claim 4 of the present invention, the disengaging means comprises a solenoid, and
Since the solenoid switch is provided on the hand operation part of the hose that connects the suction tool body and the vacuum cleaner body, it is easy to use and the operation part of the disengagement means is projected onto the upper surface of the suction tool body. Since there is no need to do so, the disengagement means can be hidden inside the suction tool body, and a novel design can be obtained.

Further, in the invention of claim 5 of the present invention, a hole is provided in the vicinity of the swing lever protrusion in the suction tool body so as to directly communicate with the air passage in the suction tool body. The swing lever protrusion of the suction tool body cannot be hermetically sealed, and the hole of this projection may serve as an air passage for dust to enter due to negative pressure in the suction tool body. The hole formed in the vicinity of the hole of the protruding portion is directly connected to the air passage in the main body of the suction tool and vigorously sucks the dust around the hole, so that the dust around the hole of the protruding portion is forcibly sucked into the hole. And lead to the wind path. Therefore,
According to the fifth aspect of the present invention, it is possible to prevent dust from entering the braking wheel and the rocking lever portion, and it is possible to prevent malfunctions.

Further, in the invention of claim 6 of the present invention, the portion of the suction tool body facing the nap cloth roller body peripheral surface is in contact with the nap portion of the nap cloth roller body and adheres to the nap portion. Since a scraping unit is provided for scraping the dust that is present when the raised fabric roller body rotates in the free direction, dust that adheres to the raised portion by the wiping function is rotated in the free direction of the raised fabric roller body (360 When it is rotated several times or more), it can be reliably scraped several times, and the scraped dust can be sucked from the suction port of the suction tool body. This scraping operation is repeated every time the suction tool body moves forward or backward. Therefore, in the invention of claim 6, a sufficient cleaning effect of the raised fabric can be obtained and can be maintained for a long period of time.

Further, in the invention of claim 7 of the present invention, a holder for elastically supporting the shaft portion of the raised fabric roller body in the axial direction is provided on at least one of the bearing portions on both ends of the raised fabric roller body of the suction tool body. As a result, it is possible to separate the bearing part, which has a stroke adjustment function for the napped roller body by means of a coil spring, from the napped roller body, resulting in malfunctions due to rust after cleaning the napped roller body. Can be prevented in advance. Furthermore, it can be supplied as a replacement part at low cost.

Further, in the invention of claim 8 of the present invention, two raised cloth roller bodies which freely roll on the surface to be cleaned are arranged in the front and rear of the suction tool body, and the raised cloth roller bodies are rotated. Since the braking means for restricting the movement when it comes to the rear side in the advancing direction of the suction tool is provided, both reciprocating movements of the suction tool main body can be wiped and cleaned.

Further, in the invention of claim 9 of the present invention, the braking means of claim 8 has Λ-shaped slopes which respectively form a wedge-shaped space between the braking means and the peripheral surface of each raised cloth roller body, A braking wheel holder arranged between both raised cloth roller bodies,
It is supported on both sides of the Λ-shaped slope of the braking wheel holder so as to be arranged in each wedge-shaped space, and is independently interposed between the Λ-shaped slope of the braking wheel holder and the peripheral surface of each raised fabric roller body. , Each of the wedge-shaped spaces is located at the rear of the napped roller body located in front of the napped cloth roller body, since the pair of braking wheels regulates the rotation of the napped cloth roller body at the rear side in the suction tool traveling direction. It is formed in the upper part and the front upper part of the raised fabric roller body located in the rear, respectively. Therefore, when the suction tool main body moves in the front direction, the front raised cloth roller body rotates in the direction of releasing the braking wheel located in front of the Λ-shaped slope from the biting position in the wedge-shaped space to move the suction tool main body. As it moves, it rolls freely on the floor surface, and the rear raised fabric roller body rotates in a direction in which the braking wheel located behind the Λ-shaped slope bites into the wedge-shaped space. For this reason, the braking wheel located behind the Λ-shaped slope enters the interior of the wedge-shaped space formed between the rear slope of the Λ-shaped slope and the rear raised fabric roller body, and the rear slope of the Λ-shaped slope. And the peripheral surface of the rear raised cloth roller body, and the rear raised cloth roller body is given a resistance against rotation to stop its free rotation. Further, when the suction tool body is moved in the rearward direction, that is, when the suction operation is performed by the user's pulling movement, the raised fabric roller body in front of the user moves the braking wheel located in front of the Λ-shaped slope into the wedge-shaped space. Rotate in the direction to let it bite into. For this reason, the braking wheel located in front of the Λ-shaped slope enters the interior of the wedge-shaped space formed between the front slope of the Λ-shaped slope and the front raised fabric roller body, and the front slope of the Λ-shaped slope. And the peripheral surface of the napped roller body at the front, the resistance to the napped roller body at the front against the rotation is given to stop the free rotation. At this time, the rear raised cloth roller body rotates in the direction of releasing the braking wheel located behind the Λ-shaped slope from the biting position in the wedge-shaped space and freely rolls on the floor surface as the suction tool body moves. To do. The above-described operation is repeated each time the suction tool body moves back and forth. Therefore, according to the ninth aspect of the present invention, the braking means for the two raised cloth roller bodies can be a single unit composed of the braking wheel holder.

According to the tenth aspect of the present invention, the braking wheel holder is mounted in the main body of the suction tool via the biasing means for biasing the braking wheel holder in the direction of pulling the braking wheel holder away from each other.
Since the engaging holding means for holding the braking wheel holder against each urging cloth roller body side against the urging force of the urging means is provided, when the present suction tool is used on a carpet that does not require a wiping function. Is released from the holding state of the braking wheel holder by the engagement holding means to release the braking wheel holder, and the braking wheel holder is separated from each of the raised fabric roller bodies by utilizing the urging force of the urging means. Each of the raised cloth roller bodies can be freely rotated during the movement in the front-back direction, and a light operation can be obtained even on a carpet.

In the eleventh aspect of the present invention, two cylindrical rollers, which freely roll on the surface to be cleaned, are arranged at the front and rear of the main body of the suction tool, and these cylindrical rollers have different surface characteristics. Since the material is wrapped around it, multiple functions can be activated at the same time.

[0041]

【Example】

Example 1. The present invention will be described below with reference to illustrated embodiments.
FIG. 1 is a perspective view showing an overall configuration of a suction tool for an electric vacuum cleaner according to the invention of claims 1, 2, 3, and 6, and FIG. 2 is a perspective view of a bottom surface portion of the suction tool for floors, FIG. Is a perspective view of the floor suction tool as seen from above, FIG. 4 is a vertical cross-sectional view of a main portion thereof, FIG. 5 is a vertical cross-sectional view showing an operation mode different from FIG. 4, and FIG. 6 shows an operating state of the braking means. FIG. 7 is a vertical cross-sectional view of the state of FIG. 6, FIG. 8 is a horizontal cross-sectional view of the disengaged state of the braking means, and FIG. 9 is a vertical cross-sectional view of the state of FIG. The parts corresponding to the above-mentioned conventional examples (FIGS. 38 to 44) are denoted by the same reference numerals.

In the vacuum cleaner suction tool of this embodiment, the floor suction tool main body 31 is formed by connecting the upper case 2 and the lower case 3 to each other, and the suction side of the vacuum cleaner main body 32 is located at the center of the rear part. A connecting pipe 4 communicating with the hose 33A and the extension pipe 33B is arranged, and the connecting pipe 4 is sandwiched between the upper and lower cases 2 and 3 to be assembled. At the center of the front part of the lower case 3, there is provided a suction port 5 connected to the connecting pipe 4, and suction grooves 6 are provided on the left and right of the suction port 5. Further, a raised cloth roller body 23 formed by winding a raised cloth 8 around a cylindrical roller 22 is installed behind the suction port 5 of the lower case 3, and a pair of wheels 34 are provided on the left and right behind the raised cloth roller body 23. . The wheel 34 may be set at one in the center. Further, a braking means 35 for restricting the movement of the raised cloth roller body 23 in one direction of rotation is provided at a portion of the front portion of the main body 31 facing the peripheral surface of the cylindrical roller 22 of the raised cloth roller body 23. The braking means 35 is
A flat surface portion 3 which is provided on a part of a front wall surface of the raised fabric roller body 23 of the floor suction tool body 31 facing the peripheral surface of the cylindrical roller 22 and forms a wedge-shaped space between the peripheral surface and the cylindrical roller peripheral surface.
6 and a braking wheel 37 disposed in the wedge-shaped space and interposed between the flat surface portion 36 and the peripheral surface of the cylindrical roller to restrict movement of the raised cloth roller body 23 in one direction of rotation. . Further, the braking wheel 37 is mounted in the lateral oblong hole 38b of the projecting portion 38a of the swing lever 38, which is housed in the floor suction tool body 31 and has one end projecting to the outside of the hole 31a, and is located at the front, rear, upper and lower sides. It can move within a range. The rocking lever 38 has an L shape, and the longitudinal middle portion of one piece of the L shape to which the braking wheel 37 is attached is attached to the lower case 3 by a shaft 39.
Is rotatably supported by the L-shaped piece, and a ridge slope 38c is formed on the upper surface of the other L-shaped piece.
8c is in contact with a switching lever 41 which is an engagement releasing means slidably installed in the longitudinal direction of the ridge. The switching lever 41 has a knob portion 41a, which is its operating portion.
Is formed so as to project from the upper case 2, and can be switched by sliding in the display direction (longitudinal direction of the ridge) within the range of the carpet and the display portion of the floor shown in FIGS. 6 and 8, and switching to the floor side. In such a case, the degree of freedom in the up-down direction of the protruding portion 38a of the swing lever 38 is increased, and the braking wheel 37 can be fitted deep inside the wedge-shaped space.
Also, when the switch is made to the carpet side, the projecting portion 38a of the swing lever 38 is forcibly swung upward,
The braking wheel 37 can be disengaged from the inner side of the wedge-shaped space, that is, the engagement position between the flat surface portion 36 and the peripheral surface of the cylindrical roller. In addition, a portion of the floor suction tool body 31 facing the peripheral surface of the raised fabric roller body comes into contact with the raised portion of the raised fabric roller body 23 to remove dust adhering to the raised fabric portion from the raised fabric roller body 2.
Scraping hairs 42 for scraping when rotating in the free direction of 3 are installed.

In the vacuum cleaner suction tool of this embodiment,
In order to clean the hard floor surface, first, the switching lever 41 is switched to the floor side to increase the vertical freedom of the braking wheel 37 (FIGS. 6 and 7). In this state, the floor suction tool body 31
Is moved in the forward direction, the raised fabric roller body 23, that is, the cylindrical roller 22 rotates in a direction in which the braking wheel 37 is bitten into the wedge-shaped space as shown in FIG. By this rotation, the braking wheel 37 automatically penetrates into the inner part of the wedge-shaped space and bites between the flat surface portion 36 and the circumferential surface of the cylindrical roller, giving resistance against rotation to the cylindrical roller 22 and freely rotating it. Stop motion. As a result, the napped roller body 23 is stopped from rotating when the floor suction tool body 31 is moved in the forward direction, and in this state, the napped roller body 23 slides on the floor surface and is hard on the floor surface such as a rag. Demonstrate sufficient wiping performance against. Further, when the floor suction tool body 31 is moved in the rearward direction, the cylindrical roller 22 rotates in a direction to release the braking wheel 37 from the bite position in the wedge-shaped space as shown in FIG. By this rotation, the braking wheel 37 automatically releases the wedge action. Thereby, the raised cloth roller body 23 freely rolls on the floor surface as the floor suction tool body 31 moves. This operation is repeated each time the suction tool body reciprocates. When the napped roller body 23 rotates freely (360 ° or more, a few rotations), the scraping hairs 42 in contact with the napped portion of the napped roller body 23 are wiped by the wiping function when moving in the forward direction. The dust attached to the raised portion is scraped off, and the scraped dust is sucked through the suction port 5 of the floor suction tool body 31. This scraping operation is repeated each time the floor suction tool body 31 is moved back (moved in the backward direction).

When the suction device is used on a carpet which does not require a wiping function, the switching lever 41 is switched to the carpet side so that the braking wheel 37 is located deep inside the wedge-shaped space, that is, the flat surface portion 36 and the cylindrical roller circumference. It is forcibly disengaged from the engagement position with the surface (FIGS. 8 and 9). Thereby, the raised cloth roller body 2
3 freely rolls on the floor surface in both front and rear directions as the floor suction tool body 31 moves.

As described above, in the present embodiment, the braking means 35 regulates the rotation of the napped roller body 23 that freely rolls when the floor suction tool body 31 is moved forward, and the napped roller body 2
The rotation of 3 is stopped when the floor suction tool main body 31 is moved forward and is slid on the floor surface in this state, so that a sufficient wiping performance is exerted on a hard floor surface such as a rag.

Further, the braking means 35 is replaced by the floor suction tool body 3
1, a flat surface portion 36 provided on a wall surface of the raised fabric roller body 23 facing the peripheral surface of the cylindrical roller 22 and forming a wedge-shaped space between the peripheral surface of the cylindrical roller 22 and a flat surface portion disposed in the wedge-shaped space. 36 and a braking wheel 37 interposed between the circumferential surface of the cylindrical roller and regulating the movement of the cylindrical roller 22 in one direction, the wiping function for the hard floor surface is cut into the braking wheel 37 by a wedge action. It can be obtained with a simple structure.

Further, the braking wheel 37 is attached to the projecting portion 38a of the swing lever 38 which is housed in the floor suction tool body 31 and has one end projecting outward, and the braking wheel 37 is braked near the other end of the swing lever 38. The ring 37 is a flat surface portion 36 in the wedge-shaped space
Since the switching lever 41 that can operate the swing lever 38 in the direction of disengaging from the engagement position between the cylindrical roller 22 and the peripheral surface of the cylindrical roller 22 is provided, when the present suction tool is used on a carpet that does not require a wiping function. Can forcibly disengage the braking wheel 37 from the engagement position by the switching operation of the switching lever 41, which allows the raised cloth roller body 23 to move in both front and rear directions as the floor suction tool body 31 moves. Can be freely rolled on the floor. Therefore, a light operation can be obtained even on a carpet.

Further, the portion of the floor suction tool body 31 facing the peripheral surface of the raised cloth roller body comes into contact with the raised portion of the raised cloth roller body 23 to remove dust adhering to the raised portion from the raised cloth roller body. Since the scraping bristles 42 for scraping when the 23 rotates in the free direction are provided, dust adhering to the nap portion by the wiping function is removed by the scraping means 42 several times (about 10 rotations) when the nap cloth roller body 23 rotates in the free direction. ), The scraped dust can be sucked from the suction port 5 of the floor suction device body 31. Therefore, a sufficient cleaning effect of the raised fabric can be obtained and can be maintained for a long time.

Example 2. FIG. 10 is a vertical cross-sectional view of a main part of a suction tool for an electric vacuum cleaner according to a sixth aspect of the present invention, and FIG.
FIG. 3 is a bottom view of the first embodiment (FIG. 1).
9 to 9) are designated by the same reference numerals.

The suction tool for the electric vacuum cleaner of this embodiment comes into contact with the raised portion of the raised fabric roller body 23 and scrapes off dust adhering to the raised fabric roller portion 23 when the raised fabric roller body 23 rotates in the free direction. The take-out means is constituted by a rib 51 formed as a part of the shape of the lower case 3 in the front portion of the raised cloth roller body 23 in the lower case 3, and the other constitutions are the same as those of the first embodiment. Is the same as

In the suction tool for the electric vacuum cleaner of this embodiment, the scraping means is the rib 51 which is a part of the shape of the lower case 3.
Since it is composed of, the number of parts can be reduced.

Example 3. FIG. 12 is a perspective view showing the overall configuration of a suction tool for an electric vacuum cleaner according to a fourth aspect of the present invention,
FIG. 13 is a horizontal cross-sectional view of an essential part thereof, FIG. 14 is a vertical cross-sectional view showing the operating state of the braking means, and FIG. 15 is a vertical cross-sectional view showing the disengaged state of the braking means. The same parts as those in the first embodiment (FIGS. 1 to 9) are designated by the same reference numerals.

The vacuum cleaner suction tool of this embodiment comprises a solenoid 61 in which the disengagement means of the braking wheel 37 is housed and hidden in the floor suction tool body 31, and the solenoid 61 is connected to the base plate 62. Power supply pin 6 provided on tube 4
3, the electric vacuum cleaner main body 32 by the electric wires (not shown) respectively arranged in the extension pipe 33B and the hose 33A.
More power is supplied, and the operation is controlled by the switch 65 provided on the hand operation part 64 of the hose 33A, and the rest of the configuration is the same as that of the first embodiment.

In the vacuum cleaner suction tool of this embodiment, the solenoid 61 is turned on / off by the switch 65 of the hand operation section 64 of the hose 33A. Fig. 1 when OFF
The rocking lever 38 is free as shown in FIG.
Is in contact with the flat surface portion 36 and the peripheral surface of the cylindrical roller 22 in the wedge-shaped space and applies a braking force to the cylindrical roller 22, that is, the raised cloth roller body 23 at the time of biting. When turned on, as shown in FIG. 15, the swing lever 38 is pulled by the solenoid 61, the braking wheel 37 is forcibly disengaged from the engagement position, and the raised fabric roller body 23 is freely rotated in both front and rear directions.

As described above, in the vacuum cleaner suction tool according to this embodiment, the floor wiping function and the switching of the carpet can be performed by remote control at the user's hand, which improves usability. Furthermore, since it is not necessary to project the operation portion of the disengagement means to the upper surface of the upper case 2 and can be concealed in the floor suction tool main body 31, a novel design can be obtained.

Example 4. FIG. 16 is a vertical cross-sectional view of a main part of the suction tool for the electric vacuum cleaner according to the fifth aspect of the present invention,
In the figure, the same parts as those in the first embodiment (FIGS. 1 to 9) described above are designated by the same reference numerals.

In the suction tool for the electric vacuum cleaner according to this embodiment, a hole which directly communicates with the air passage in the floor suction tool body 31 is provided in the vicinity of the hole 31a through which the projecting portion 38a of the swing lever 38 in the lower case 3 projects. 71 is provided, and the other structure is the same as that of the first embodiment.

That is, the room formed of the lower case 3 and the upper case 2 (the part where the hole 31a and the like are formed) is
An air passage through which dust enters can be created by a negative pressure due to a slight leak of a mating portion that serves as an air passage forming portion in the floor suction tool main body 31.
Therefore, the hole 31a of the lower case 3 for the braking wheel 37 to come into contact with the peripheral surface of the cylindrical roller 22 can also serve as an air passage through which dust enters. Therefore, a hole 71 that directly communicates with the air passage in the floor suction tool body 31 is formed near the hole 31a, and the hole 31a is formed.
By generating a flow of air around the portion a toward the hole 71, dust around the hole 31a can be forcibly guided to the hole 71.

In the vacuum cleaner suction tool of this embodiment, it is possible to prevent dust from entering the braking wheel 37 and the swing lever 38, and prevent malfunctions.

Example 5. FIG. 17 is a cross-sectional view of a vacuum cleaner suction tool according to a seventh aspect of the present invention, and FIG.
7 is a sectional view taken along the line XX of FIG. 7, FIG. 19 is an exploded perspective view of a raised cloth roller body bearing portion, which is a main portion thereof, and FIGS.
2 is an explanatory view for explaining the attachment and detachment of the napped roller body to and from the bearing portion. In each drawing, the same parts as those in the above-described first embodiment (FIGS. 1 to 9) are designated by the same reference numerals. There is.

The vacuum cleaner suction tool of this embodiment elastically supports the shaft portion of the raised cloth roller body 23 in one of the bearing portions of the raised cloth roller body 23 on the floor suction tool body 31 side. The holder 81 and the coil spring 82 are provided, and the stroke adjusting function of the napped roller body 23 is provided on the floor suction tool body 31 side, so that the coil spring 82 can be separated from the napped roller body 23. .

This will be described in more detail with reference to FIGS. 17 to 19. In the raised fabric roller body 23, cylindrical caps 83 are fixed to both ends of the cylindrical roller 22 around which the raised fabric 8 is wound. . Each cap 83 has a stepped shaft 84 fixed to the inside thereof, and the thin shaft portion 84a of each shaft 84 projects outward from the end surface of each cap 83 so that a minimum required span is secured. In addition, inwardly facing claws 83a are provided at two opposing positions in the circumferential direction of the end surface of each cap 83. Each shaft 84 is covered with a bottomed cylindrical crown body 85 from the outside, and the flange portion 85 a of each crown body 85 is attached to each cap 8.
The flange portions 85a are inwardly engaged by the claws 83a of the caps 83, respectively, and are prevented from coming off from the caps 83, respectively. That is, each crown body 85 is integrated with the raised fabric roller body 23 by being attached to the cylindrical roller 22.
In addition, each crown 85 has a rectangular protrusion 8 at each end.
5b, the protrusion 85b of one crown 85 is
The lower case 3 is tightly fitted and supported in a small-diameter rectangular hole 86 formed on one side, and the projection 85b of the other crown 85 is inserted into a large-diameter rectangular hole 87 formed on the other side of the lower case 3. It is tightly fitted and supported in the rectangular hole 81a of the holder 81 arranged inside, and is elastically supported in the axial direction by the coil spring 82 arranged between the back surface of the holder 81 and the outer wall 88 of the lower case 3. There is. The holder 81 has two
Sliding ridge projections 81b extending in the axial direction are provided on one side surface, and the sliding ridge projections 81b can be slid in line contact with the inner surface of the holder housing wall 89 installed in the lower case 3.

In the suction tool for the electric vacuum cleaner of this embodiment, in order to remove the raised cloth roller body 23 from the lower case 3 for cleaning the raised cloth 8, etc., first, the raised cloth roller body 23 in the state shown in FIG. 21 is gripped by hand, and in that state, it is moved in the axial direction of the holder 81 shown by the arrow A in FIG.
Against the biasing force of the coil spring 82 and the outer wall 8 of the lower case 3.
Move to 8 side. By this movement, the projection 85b of the crown body 85 located at the rear end in the moving direction comes out of the small-diameter rectangular hole 86 of the lower case 3, so that the raised cloth roller body 23 moves downward in the direction shown by the arrow B in FIG. The tilted cloth roller body 23 can be separated from the lower case 3 by tilting. The holder 81, which has been moved to the outer wall 88 side of the lower case 3, returns to the original position by the biasing force of the coil spring 82 after being separated from the lower case 3 of the raised cloth roller body 23. The cleaning cloth 8 is attached to the lower case 3 after cleaning the raised cloth roller body 23 in the reverse order of the above.

As described above, in the vacuum cleaner suction tool of this embodiment, since the stroke adjusting function of the nap cloth roller body 23 is provided on the floor suction tool body 31 side, the coil spring 82 is provided. It can be separated from the roller body 23, and it is possible to prevent the occurrence of malfunctions due to rust or the like after cleaning the brushed roller body. Furthermore, it can be supplied as a replacement part at low cost. In addition, in this embodiment, the stroke adjusting function of the napped roller body 23 is given to one of the bearing parts of the napped roller body 23 on the floor suction tool body 31 side as an example. The stroke adjusting function of the raised fabric roller body 23 may be provided to both of the bearing portions of the raised fabric roller body 23 on the floor suction tool body 31 side.

Example 6. FIG. 23 shows claim 8 of the present invention.
FIG. 24 is a perspective view of a bottom portion of the suction tool for an electric vacuum cleaner according to the invention of FIGS. 9 and 10, FIG. 24 is a vertical cross-sectional view of a main portion thereof, FIG. 25 is a vertical cross-sectional view showing an operation mode different from FIG. 24, and FIG. FIG. 27 is a longitudinal sectional view showing the operating state of the braking means, FIG. 27 is a longitudinal sectional view showing the state of FIG. 26, FIG. 28 is a lateral sectional view showing the disengaged state of the braking means, and FIG. 29 is a longitudinal sectional view showing the state of FIG. In each drawing, the same parts as those in the first embodiment (FIGS. 1 to 9) described above are designated by the same reference numerals.

In the suction tool for the electric vacuum cleaner of this embodiment, two raised cloth roller bodies 23A and 23B are arranged in front and rear of the suction case 5 of the lower case 3 of the floor suction tool body 31. By providing a braking means 91 for restricting the rotation of the raised fabric roller bodies 23A and 23B when the floor suction tool body 31 is moved to the rear side in the traveling direction, the floor suction tool body 31 can be reciprocated in both directions. It enables wiping and cleaning even when moving.

This will be described in more detail with reference to FIGS. 23 to 29. The braking means 91 includes the raised cloth roller bodies 23A and 2A.
3B has Λ-shaped slope portions 92a and 92b forming a wedge-shaped space between the cylindrical rollers 22A and 22B and the braking wheel holder 92 disposed between the cylindrical rollers 22A and 22B, respectively. The braking wheel holder 92 is arranged on both sides of the Λ-shaped slope portions 92a, 92b of the braking wheel holder 92 so as to be arranged in the wedge-shaped space and attached to the longitudinal slots 92c, 92d, respectively, and the Λ-shaped slope portion 92a of the braking wheel holder 92, 92b and the peripheral surfaces of the cylindrical rollers 22A and 22B are independently interposed, and the rotation of the cylindrical rollers 22A and 22B, that is, the raised cloth roller bodies 23A and 23B is advanced when the floor suction tool body 31 is moved. It is composed of a pair of braking wheels 93, 94 which are regulated when they come to the rear side in the direction. Also,
The brake wheel holder 92 is installed movably in the vertical direction by a shaft-shaped guide 95 provided upright on the bottom of the lower case 3, and the shaft-shaped guide 95 is provided between the lower surface of the brake wheel holder 92 and the bottom of the lower case 3. The coil spring 96 arranged around the spring always urges the coil spring 96 in the upward direction (disengagement direction). Further, the braking wheel holder 92 is provided above the braking wheel holder 92 against the urging force of the coil spring 96 so that the cylindrical roller 22A,
A switching lever 97, which is an engagement holding means for holding the 22B side, that is, the position where the pair of braking wheels 93 and 94 can engage with the cylindrical rollers 22A and 22B, respectively, is provided. The switching lever 97 has a knob portion 97a which is its operating portion.
Is formed so as to project from the upper case 2 so that the carpet and the floor can be switched. When the carpet is switched to the carpet side, the brake wheel holder 92 is released from the restraint by the switching lever 97 and the coil spring 96 is released. Is moved upward (disengagement direction) by the urging force of each braking wheel 9
3, 94 are separated from the cylindrical rollers 22A and 22B. Also, if you switch to the floor side,
The brake wheel holder 92 is forcibly pressed downward by the switching lever 97, and the brake wheels 93 and 94 are moved to the cylindrical rollers 22.
It can be engaged with the peripheral surfaces of A and 22B. Although a pair of wheels 98 are provided on the left and right in front of the lower case 3, the wheels 98 may be set at one in the center. Further, although not shown, also in this embodiment, the portions of the lower case 3 that face the peripheral surfaces of the raised fabric roller bodies 23A and 23B are brought into contact with the raised portions of the raised fabric roller bodies 23A and 23B and attached to the raised portions. Scraping means is provided for scraping off the generated dust when the raised cloth roller bodies 23A and 23B rotate in the free direction.

In the suction tool for the electric vacuum cleaner of this embodiment, each wedge-shaped space is formed in the rear upper part of the cylindrical roller 22A located in the front and in the front upper part of the cylindrical roller 22B located in the rear. Therefore, the floor suction tool body 3
When 1 is moved in the forward direction, the front cylindrical roller 22A is rotated in a direction to release the braking wheel 93 located in front of the slope portion 92a from the biting position in the wedge-shaped space to move the floor suction tool main body 31. As a result, the cylindrical roller 22B on the rear side freely rolls on the floor surface, and the rear cylindrical roller 22B is positioned behind the slope 92b.
Rotate in the direction that bites into the wedge-shaped space. For this reason, the braking wheel 94 located behind the Λ-shaped slope portion enters the inner part of the wedge-shaped space formed between the rear sloped portion 92b of the Λ-shaped sloped portion and the rear cylindrical roller 22B, and the rear sloped surface. It bites between the portion 92b and the peripheral surface of the rear cylindrical roller 22B and gives resistance against rotation to the rear cylindrical roller 22B, that is, the raised cloth roller body 23B, and stops its free rotation. Further, when the floor suction tool body 31 is moved in the rearward direction, that is, when the suction operation is performed by the user, the front cylindrical roller 22A bites the braking wheel located in front of the Λ-shaped slope portion into the wedge-shaped space. Rotate in the direction of letting. For this reason,
The braking wheel 93 located in front of the Λ-shaped slope portion enters the inside of the wedge-shaped space formed between the front sloped surface portion 92a of the Λ-shaped sloped surface and the front cylindrical roller 22A, and the front sloped surface portion 9 is formed.
2a and the peripheral surface of the front cylindrical roller 22A,
Front cylindrical roller 22A, that is, brushed roller body 23A
A resistance against the rotation is given to stop the free rotation. At this time, the rear cylindrical roller 22B rotates in the direction of releasing the braking wheel 94 located behind the Λ-shaped slope from the biting position in the wedge-shaped space, and freely rolls on the floor surface as the suction tool body moves. To do. The above operation is the floor suction tool body 31
It is repeated every time the vehicle moves back and forth. This floor suction tool body 3
Each time one reciprocating movement is made, each raised fabric roller body 23A, 23A
By scraping means (not shown) in contact with the raised portion of B,
Dust is scraped off from the raised part of the brushing roller body on the free rotation side, and the scraped dust is sucked into the suction port 5 of the floor suction tool body 31.
Needless to say, it should be sucked more.

When the suction device is used on a carpet which does not require a wiping function, the switching lever 97 is switched to the carpet side to release the restraint of the brake wheel holder 92, that is, the brake wheel holder 92, that is, each brake wheel 93. , 94 are forcibly disengaged from the inner engagement position in each wedge-shaped space by utilizing the biasing force of the coil spring 96 (FIGS. 28 and 29). As a result, each of the raised cloth roller bodies 23A and 23B freely rolls on the floor surface in both front and rear directions as the floor suction tool body 31 moves.

As described above, in the vacuum cleaner suction tool of this embodiment, two raised cloth roller bodies that freely roll on the floor surface are arranged in the front and rear of the floor suction tool main body 31. Since the braking means 91 for restricting the rotation of the raised cloth roller bodies 23A and 23B when it comes to the rear side in the traveling direction of the floor suction tool body 31, the floor suction tool body 31 is provided.
Wiping is possible for both round trips.

Further, the braking means 91 forms a wedge-shaped space with the cylindrical rollers 22A, 22B of the raised fabric roller bodies 23A, 23B and forms a wedge-shaped space 92a, 9a.
2b, which is mounted between both cylindrical rollers 22A, 22B, and is mounted on both sides of the Λ-shaped slopes 92a, 92b of the braking wheel holder 92 so as to be arranged in each wedge-shaped space. The Λ-shaped slope 9 of the brake wheel holder 92.
2a and 92b and the peripheral surfaces of the cylindrical rollers 22A and 22B, respectively, which are independently interposed.
A, 22B, that is, a pair of braking wheels 93, 94 for restricting the rotation of the raised fabric roller bodies 23A, 23B when the floor suction tool body 31 is moved to the rear side in the traveling direction. The braking means 91 for the two raised cloth roller bodies 23A and 23B can be a single-piece configuration including the braking wheel holder 92, and the number of parts can be reduced.

Further, the brake wheel holder 92 is attached to the floor suction tool main body 31 via the coil spring 96 that biases the brake wheel holders 92 in the direction of separating from the raised fabric roller bodies 23A and 23B, and the brake wheel holder 92 of the coil spring 96 is attached. Since a switching lever 97 for holding the raised cloth roller bodies 23A and 23B against the biasing force is provided, when the suction tool is used on a carpet that does not require a wiping function, the switching lever 97 is switched. The braking wheels 93, 94 can be forcibly disengaged from the engagement position by the operation by utilizing the urging force of the coil spring 96, whereby the raised fabric roller bodies 23A, 23
B can be freely rolled on the floor surface in both front and rear directions as the floor suction tool body 31 moves. Therefore, a light operation can be obtained even on a carpet.

Example 7. 30 is a longitudinal sectional view of a main part showing another embodiment of the suction tool for the electric vacuum cleaner according to the invention of claim 8 of the invention, FIG. 31 is a longitudinal sectional view showing a different sectional part of FIG. 30, and FIG. 30 is a vertical sectional view showing an operation mode different from FIG. 30, and FIG. 33 is a vertical sectional view showing a different sectional part of FIG. 32. In each drawing, the sixth embodiment (FIGS. 23 to 29) described above is shown.
The same symbols are given to the portions corresponding to.

In the suction tool for the electric vacuum cleaner of this embodiment, the suction opening of the floor suction tool main body 31 is divided into the front part and the central part of the lower case 3 to form a front suction port 5A and a central suction port 5B. And arranging the raised cloth roller bodies 23A and 23B in front of and behind the central suction port 5B so as to sandwich the central suction port 5B, and
Braking means 91A, 91B that form wedge-shaped spaces between the inner surfaces of the raised cloth roller bodies 23A, 23B in the lower case 3 and the cylindrical rollers 22A, 22B of the raised cloth roller bodies 23A, 23B. Are independently installed, and each raised cloth roller body 23 in the lower case 3
A scraping hair 42A, 42B is provided in the lower part of the inside of A, 23B to restrict the rotation of each raised cloth roller body 23A, 23B when the floor suction device body 31 is moved to the rear side in the traveling direction. The floor suction device main body 31 can be wiped and cleaned even when it is moved back and forth. Each time the floor suction tool body 31 reciprocates, dust is scraped off by the scraping bristles 42A and 42B from the raised part of the fluffing cloth roller body on the free rotation side. The suction is performed through the suction port 5B and the front suction port 5A.

In the suction tool for the electric vacuum cleaner of this embodiment, since the scraping bristles 42A and 42B can be installed adjacent to the front suction port 5A and the central suction port 5B, two brushed roller bodies are provided. The cleaning effect of each raised cloth 8 can be ensured even in the form using.

Example 8. FIG. 34 is a longitudinal sectional view of a main part of a suction tool for an electric vacuum cleaner according to an eleventh aspect of the present invention.
5 is a longitudinal sectional view showing an operation mode different from that of FIG. 34, and in each of the drawings, portions corresponding to the above-described sixth embodiment (FIGS. 23 to 29) are designated by the same reference numerals.

In the suction tool for the electric vacuum cleaner of this embodiment, two cylindrical rollers 22A and 22B are arranged in front and rear of the suction port 5 of the lower case 3 of the floor suction tool main body 31, and these cylinders are connected to each other. The rollers 22A and 22B are respectively wound with surface materials having different properties so that a plurality of functions can be simultaneously performed.

In this embodiment, as the surface material, the rear cylindrical roller 22B is made of a porous material 101 capable of containing a large amount of water, and the front cylindrical roller 22A is made of a material 102 having a high water wiping effect. Wrapped around each.
In addition, a water wiping roller body 103 wound with a porous material 101.
Between the roller body 103 and the dry-wiping roller body 104 wound with the material 102 having a high effect of wiping off water.
The dust adhering to the surface material 04 is removed from each roller body 103, 1
Scraping hairs 42A, 42 scraped off when 04 rotates in the free direction
B was installed.

In the suction tool for the electric vacuum cleaner of this embodiment, the roller bodies 103 and 104 are alternately stopped and rotated during the reciprocating motion of the floor suction tool main body 31 by the braking means (not shown). That is, when the floor suction tool body 31 is moved, the floor suction tool main body 31 is stopped when it is on the rear side in the traveling direction. As a result, when the floor suction tool body 31 moves forward, the water wiping roller body 101 located at the rear side wipes the floor surface, and when moving backward, the dry water wiping roller body 102 located at the front side wipes excess moisture on the floor surface. Is wiped off. The above operation is repeated in the reciprocating motion of the floor suction tool body 31.

As described above, in the vacuum cleaner suction tool of this embodiment, since the two cylindrical rollers 22A and 22B are wound with the surface materials having different properties, a plurality of functions can be simultaneously performed. It is possible to obtain a sufficient wiping function for finer dust and dust with adhesiveness.

Example 9. 36 is a longitudinal sectional view of a main part showing another embodiment of the suction tool for the electric vacuum cleaner according to the invention of claim 11 of the present invention, and FIG. 37 is a longitudinal sectional view showing an operation mode different from FIG. In each of the drawings, parts corresponding to those of the sixth embodiment (FIGS. 23 to 29) and the eighth embodiment (FIGS. 34 and 35) described above are designated by the same reference numerals.

The suction tool for the electric vacuum cleaner of this embodiment has two cylindrical rollers 22A, 22B arranged in front of and behind the suction port 5 of the lower case 3 of the floor suction tool main body 31 to form a front cylinder. Dust removal brush 1 for cleaning the carpet on the surface of the roller 22A
11 and the raised cloth 8 for cleaning the floor surface around the cylindrical roller 22B on the rear side, and the cylindrical roller 22A on the front side and the floor surface so that the surface of the dust removing brush 111 contacts only on the carpet. The attachment position and shape are set so that a gap t is secured between the dust removing brush 111 and the tip of the dust removing brush 111 to prevent scratches on the hard floor surface. Further, scraping bristles 42A, 42B for scraping dust adhering to the surfaces of the brush roller body and the brushed cloth roller body when the roller bodies rotate in the free direction are provided in the vicinity of the brush roller body and the raised cloth roller body. .

In the vacuum cleaner suction tool of this embodiment, the cylindrical rollers 22A and 22B both stop when the floor suction tool main body 31 moves forward by a braking means (not shown).
Both of them are designed to rotate when moving backward. Therefore,
When the floor suction tool body 31 is moved forward, both the roller body of the dust removing brush 111 and the roller body of the napped cloth 8 located at the front stop, and the dust is caught by the dust removal brush 111 and the napped cloth 8 and is caught. The dust is removed from the floor suction device main body 31 when the reverse movement is performed on the scraping hairs 42A, 42B.
It is scraped off by and sucked from the suction port 5 in the front. The above operation is repeated in the reciprocating motion of the floor suction tool body 31.

As described above, in the vacuum cleaner suction tool of this embodiment, the two cylindrical rollers 22A and 22B are
Dust removal brush with a function to knock out dust on the carpet 1
Since 11 and the raised cloth 8 having the function of wiping the hard floor surface are respectively wound, different functions can be exerted on different floor types.

[0085]

As described above, according to the invention of claim 1 of the present invention, since the braking means for restricting the rotation of the raised fabric roller body which freely rolls in one direction of the rotation direction is provided, Demonstrate sufficient wiping performance on hard floors such as rags.

According to the invention of claim 2 of the present invention,
The braking means is provided in a part of the wall surface of the suction tool body facing the napped roller body peripheral surface and a flat surface portion forming a wedge-shaped space between the napped roller body peripheral surface, and is disposed in the wedge-shaped space. Since it is composed of a braking wheel that is interposed between the flat surface portion and the peripheral surface of the napped roller body to regulate the movement of the napped roller body in one direction of the rotational direction, the wiping function for the hard floor surface is achieved by the wedge action. It can be obtained with a simple structure in which the brake wheel bites.

According to the invention of claim 3 of the present invention,
The braking wheel is housed in the suction tool body and one end of the braking wheel is attached to the protruding portion of the swing lever, and the braking wheel is provided near the other end of the swing lever in the wedge-shaped space and the raised cloth. Since the engagement releasing means for operating the swing lever in the direction of disengaging from the engagement position with the roller peripheral surface is provided, a light operation can be obtained even on the carpet.

Further, according to the invention of claim 4 of the present invention,
Since the engagement releasing means is composed of a solenoid, and the switch of the solenoid is provided in the hand operation portion of the hose connecting the suction tool body and the vacuum cleaner body, it is easy to use, and the operation portion of the engagement releasing means is further improved. Since it is not necessary to project the above into the upper surface of the suction tool body, the disengagement means can be concealed in the suction tool body, and a novel design can be obtained.

According to the invention of claim 5 of the present invention,
Since a hole that directly connects to the air passage in the suction tool body was formed near the swing lever protrusion in the suction tool body, it is possible to prevent dust from entering the braking wheel and the swing lever portion, and malfunction occurs. Can be prevented.

Further, according to the invention of claim 6 of the present invention,
A part of the suction tool body that faces the peripheral surface of the napped roller body contacts the napped part of the napped roller body and scrapes off dust adhering to the napped part when the napped roller body rotates in the free direction. Since the means is provided, a sufficient cleaning effect of the raised fabric can be obtained and can be maintained for a long period of time.

According to the invention of claim 7 of the present invention,
Since the holder for elastically supporting the shaft portion of the raised fabric roller body in the axial direction is provided on at least one of the bearing portions on both ends of the raised fabric roller body of the suction tool body, the stroke adjustment function of the raised fabric roller body by a coil spring or the like is provided. The bearing portion provided can be separated from the napped roller body, and occurrence of malfunction due to rust or the like after cleaning the napped roller body can be prevented. Furthermore, it can be supplied as a replacement part at low cost.

Further, according to the invention of claim 8 of the present invention,
In the suction tool body, two raised cloth roller bodies that freely roll on the surface to be cleaned are arranged in the front and rear, and braking that restricts the rotation of these raised cloth roller bodies when it is on the rear side in the advancing direction of the suction tool. Since the means is provided, both the reciprocating movement of the suction tool body can be wiped and cleaned.

According to the invention of claim 9 of the present invention,
The braking means according to claim 8 has a Λ-shaped inclined surface that forms a wedge-shaped space between each of the raised cloth roller bodies, and a braking wheel holder disposed between the raised cloth roller bodies, and each wedge shape. It is supported on both sides of the Λ-shaped slope of the braking wheel holder so as to be arranged in the space, and is independently interposed between the Λ-shaped slope of the braking wheel holder and the peripheral surface of each raised fabric roller body. Since it is composed of a pair of braking wheels that regulate the rotation of the raised fabric roller body when it comes to the rear side in the suction tool traveling direction,
The braking means for the napped roller body of the book may be a single unit composed of a braking wheel holder.

According to the tenth aspect of the present invention, the braking wheel holder is mounted in the suction tool body through the urging means for urging the braking wheel holder in the direction in which the braking wheel holder is separated from each of the raised fabric roller bodies, and the braking wheel holder is attached. Since the engaging and holding means for holding each of the raised cloth roller bodies against the urging force of the urging means is provided,
It is possible to freely rotate each of the raised fabric roller bodies even when the suction tool body is moved in the front-rear direction, and a light operation can be obtained even on a carpet.

According to the eleventh aspect of the present invention, two cylindrical rollers, which freely roll on the surface to be cleaned, are arranged in the front and rear of the suction tool body, and these cylindrical rollers have different properties. Since the surface material is wrapped around, multiple functions can be activated at the same time.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a suction tool for an electric vacuum cleaner according to the invention of claims 1, 2, 3, and 6 of the present invention.

FIG. 2 is a perspective view of a bottom surface portion of the suction tool for the electric vacuum cleaner of FIG.

FIG. 3 is a perspective view of the suction tool for the electric vacuum cleaner of FIG. 1 seen from above.

FIG. 4 is a vertical sectional view of a main part of the suction tool for the electric vacuum cleaner of FIG.

5 is a vertical cross-sectional view showing an operation mode different from FIG.

6 is a cross-sectional view showing an operating state of a braking means of the suction tool for the electric vacuum cleaner of FIG. 1. FIG.

7 is a vertical cross-sectional view of the state of FIG.

8 is a cross-sectional view showing a disengaged state of the braking means of the suction tool for the electric vacuum cleaner of FIG. 1. FIG.

9 is a vertical cross-sectional view of the state of FIG.

FIG. 10 is a vertical cross-sectional view of a main part of a suction tool for an electric vacuum cleaner according to a sixth aspect of the present invention.

11 is a bottom view of the suction tool for the electric vacuum cleaner of FIG. 10. FIG.

FIG. 12 is a perspective view showing an overall configuration of a suction tool for an electric vacuum cleaner according to a fourth aspect of the present invention.

FIG. 13 is a cross-sectional view of a main part of the suction tool for the electric vacuum cleaner of FIG.

FIG. 14 is a vertical cross-sectional view showing an operating state of the braking means of the suction tool for the electric vacuum cleaner of FIG.

FIG. 15 is a vertical cross-sectional view showing the disengaged state of the braking means of the vacuum cleaner suction tool of FIG. 12;

FIG. 16 is a vertical cross-sectional view of a main part of a suction tool for an electric vacuum cleaner according to a fifth aspect of the present invention.

FIG. 17 is a transverse cross-sectional view of a suction device for a vacuum cleaner according to a seventh aspect of the present invention.

FIG. 18 is a cross-sectional view taken along the line XX of FIG.

FIG. 19 is an exploded perspective view of a raised cloth roller body bearing portion that is a main portion of the suction tool for the electric vacuum cleaner of FIG. 17.

FIG. 20 is an explanatory view for explaining attachment / detachment of the raising cloth roller body to / from the bearing portion of the suction device for the electric vacuum cleaner of FIG. 17.

FIG. 21 is an explanatory diagram for explaining attachment / detachment of the raising cloth roller body to / from the bearing portion of the suction device for the electric vacuum cleaner of FIG. 17.

22 is an explanatory diagram for explaining attachment / detachment of the raising cloth roller body to / from the bearing portion of the suction device for the electric vacuum cleaner of FIG. 17. FIG.

FIG. 23 is a perspective view of a bottom surface portion of the suction tool for the electric vacuum cleaner according to the eighth, ninth and tenth aspects of the present invention.

FIG. 24 is a vertical cross-sectional view of a main part of the suction tool for the electric vacuum cleaner of FIG. 23.

FIG. 25 is a vertical sectional view showing an operation mode different from that in FIG. 24.

FIG. 26 is a transverse cross-sectional view showing an operating state of a braking means of the vacuum cleaner suction tool of FIG. 23.

27 is a vertical cross-sectional view of the state of FIG.

28 is a cross-sectional view showing a disengaged state of the braking means of the suction tool for the electric vacuum cleaner of FIG. 23. FIG.

FIG. 29 is a vertical cross-sectional view of the state of FIG. 28.

FIG. 30 is a vertical cross-sectional view of a main part showing another embodiment of the suction tool for the electric vacuum cleaner according to the invention of claim 8 of the present invention.

31 is a vertical cross-sectional view showing a different cross-sectional portion of FIG. 30.

32 is a longitudinal sectional view showing an operation mode different from that in FIG. 30. FIG.

FIG. 33 is a vertical cross-sectional view showing a different cross-sectional portion of FIG. 32.

FIG. 34 is a vertical cross-sectional view of a main part of the suction tool for the electric vacuum cleaner according to the eleventh aspect of the present invention.

FIG. 35 is a vertical sectional view showing an operation mode different from that in FIG. 34.

FIG. 36 is a longitudinal cross-sectional view of a main part showing another embodiment of the suction tool for the electric vacuum cleaner according to the invention of claim 11 of the present invention.

FIG. 37 is a vertical sectional view showing an operation mode different from that in FIG. 36.

FIG. 38 is a perspective view of a bottom portion showing a first example of a conventional suction tool for an electric vacuum cleaner.

FIG. 39 is a vertical cross-sectional view of a main part of the conventional first example.

FIG. 40 is a perspective view of a bottom portion showing a third example of the conventional suction tool for the electric vacuum cleaner.

FIG. 41 is a vertical cross-sectional view of a main part of a conventional third example.

FIG. 42 is a perspective view of a bottom portion showing a fourth example of a conventional suction tool for an electric vacuum cleaner.

FIG. 43 is a vertical cross-sectional view of a main part of a conventional fourth example.

FIG. 44 is an exploded perspective view of a main part of a conventional fourth example.

[Explanation of symbols]

2 upper case, 3 lower case, 5 suction port, 5A front suction port, 5B central suction port, 8 raised cloth, 22, 22
A, 22B Cylindrical roller, 23, 23A, 23B Raised cloth roller body, 31 Floor suction tool body, 32 Vacuum cleaner body, 33A hose, 35, 91, 91A, 91B Braking means, 36 Plane part, 37, 93, 94 brake wheels, 3
8 swing lever, 38a protruding portion, 41 switching lever (engagement releasing means), 42, 42A, 42B scraping hair (scraping means), 51 rib (scraping means), 61 solenoid (disengagement means), 64 hand operation part, 65 switch, 71 hole, 81 holder, 82 coil spring, 92
a, 92b Λ-shaped slope portion, 92 braking wheel holder, 96
Coil spring (biasing means), 97 switching lever (engagement holding means), 101 porous material (surface material), 102 material with high water wiping effect (surface material), 103 water wiping roller body, 104 dry wiping roller body , 111 Dust removal brush (surface material).

Claims (11)

[Claims] 1. A suction device for an electric vacuum cleaner, comprising a suction tool main body having a suction port, and a raised cloth roller body that rolls freely on a surface to be cleaned. A suction tool for an electric vacuum cleaner, which is provided with braking means for restricting movement. 2. A flat portion provided on a part of a wall surface of the suction tool body facing the raised cloth roller body peripheral surface to form a wedge-shaped space between the braking means and the raised cloth roller body peripheral surface, A braking wheel disposed in the wedge-shaped space and interposed between the flat surface portion and the peripheral surface of the napped roller body to restrict movement of the napped roller body in one direction of rotation. The suction tool for an electric vacuum cleaner according to 1. 3. A brake wheel is attached to the protruding portion of a swing lever that is housed in a suction tool body and has one end protruding outward, and the brake wheel is wedge-shaped space near the other end of the swing lever. 3. The suction tool for an electric vacuum cleaner according to claim 2, further comprising engagement releasing means for operating the swing lever in a direction in which the flat portion and the peripheral surface of the raised fabric roller body are disengaged from each other. 4. The electric vacuum cleaner according to claim 3, wherein the disengagement means is composed of a solenoid, and a switch for the solenoid is provided in a hand operation portion of a hose connecting the suction tool main body and the electric vacuum cleaner main body. Suction tool. 5. The suction tool for an electric vacuum cleaner according to claim 3 or 4, wherein a hole that directly communicates with an air passage in the suction tool body is formed in the vicinity of the swing lever protruding portion of the suction tool body. . 6. A portion of the suction tool body facing the peripheral surface of the napped roller body contacts the napped portion of the napped roller body to remove dust adhering to the napped roller body of the napped roller body. The suction tool for an electric vacuum cleaner according to any one of claims 1 to 5, further comprising scraping means for scraping when rotating in a free direction. 7. The holder for elastically supporting the shaft portion of the raising cloth roller body in the axial direction on at least one of the bearing portions on both ends of the raising cloth roller body of the suction tool body. The suction tool for an electric vacuum cleaner as described in Crab. 8. A suction device for an electric vacuum cleaner, comprising a suction tool body having a suction port, and a raised cloth roller body that rolls freely on a surface to be cleaned, attached to the suction tool body. At the same time, a suction tool for an electric vacuum cleaner, which is provided with a braking means for restricting the rotation of these raised fabric roller bodies when the suction tool travels to the rear side. 9. A braking wheel holder having a Λ-shaped inclined surface that forms a wedge-shaped space between the braking means and the peripheral surface of each raised fabric roller body, and the braking wheel holder disposed between both raised fabric roller bodies. The braking wheel holder is supported on both sides of the Λ-shaped slope so as to be arranged in the wedge-shaped space, and is independently interposed between the Λ-shaped slope of the braking wheel holder and each nap cloth roller body peripheral surface. 9. The suction tool for an electric vacuum cleaner according to claim 8, comprising a pair of braking wheels for restricting the rotation of the raised cloth roller body when it is on the rear side in the suction tool traveling direction. 10. The brake wheel holder is mounted in the suction tool body via a biasing means for biasing the braking wheel holder in a direction of separating from the raised fabric roller body, and the braking wheel holder is resisted against the biasing force of the biasing means. The suction tool for an electric vacuum cleaner according to claim 9, further comprising engagement holding means for holding the raised cloth roller body side. 11. An electric cleaning system comprising a suction tool body having a suction port, two front and rear cylindrical rollers that freely roll on a surface to be cleaned, and surface materials having different properties wound around the cylindrical rollers. Machine suction tool.