JP4103080B2 - Vacuum cleaner suction tool - Google Patents

Description

  The present invention relates to a vacuum cleaner suction tool.

  In a conventional vacuum cleaner suction port, the suction force generated along with the operation of the suction means arranged in the vacuum cleaner body sucks in dust, dirt, etc. on the floor to be cleaned, It is equipped with a rag roll that can be used. This rag roll is configured so that it can be removed from the main body of the suction tool and cleaned when it becomes dirty due to dust or dirt attached by cleaning the rag (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 6-36550 (paragraphs 0012 to 0022, FIG. 2)

In the conventional vacuum cleaner suction tool, the rag roll is exclusively used for wet wipe cleaning by absorbing moisture, and the rag roll is mainly made of cotton, sponge, artificial paper, etc., and the rag roll absorbs moisture. In the dry state, there is a disadvantage that the outer periphery becomes non-uniform due to causes such as curing by drying and drying shrinkage, and cannot contact the surface to be cleaned, and cannot be used for dry wiping.
Moreover, it is possible to remove the dust roll and perform only the suction cleaning, but the effect of performing the wiping cleaning cannot be obtained, and to achieve the effect, it is necessary to prepare another wiping roll corresponding to the dry wiping.
In addition, when a cleaning sheet is wound around the outer periphery of the wiper roll to support dry wiping, the outer diameter of the wiper roll is increased by the thickness of the wound cleaning sheet, the suction tool body is lifted, and the suction port is separated from the surface to be cleaned. As a result, there is a drawback that a predetermined suction performance cannot be secured.

  This invention has been made to solve the above-described problems, and of course, it is possible to perform wet wiping by sucking and absorbing moisture into the wiping roller, as well as dry wiping by wrapping a cleaning sheet around the wiping roller. It is possible to obtain a vacuum cleaner suction tool that can secure a predetermined suction performance without leaving the surface to be cleaned even if the cleaning roller is wound around the wiping roller to increase the outer diameter of the wiping roller. .

The suction tool for a vacuum cleaner according to the present invention is rotatably supported by a suction port body having a suction port and a suction path connected to the suction port on a lower surface, and a rotation shaft provided in the suction port body, A connection pipe that communicates with the suction port via the suction path, a roller storage chamber that is provided independently of the suction port and the suction path behind the suction port, and is rotatable and detachable to the roller storage chamber And a suspension mechanism interposed between the lower surface of the suction port main body and the rear wheel.

The present invention includes a suction port body having a suction port on the lower surface and a suction path connected to the suction port, and a rotary shaft provided in the suction port body, and is rotatably supported by the suction port and the suction path. a connecting pipe for communicating Te, a roller accommodating chamber provided independently to the rear of the suction port to the suction port and the suction path, wiping the roller being rotatable detachably supported accommodated in the roller housing chamber , since and a suspension mechanism which is interposed between the lower surface and rear wheels of the suction port body, the case where the wet wipe with inhaled by water moisture wiping roller, the rear wheel suspension mechanism sinks When the cleaning roller is properly pressed against the surface to be cleaned and the cleaning sheet is wrapped around the wiping roller and dry cleaning is performed, the outer periphery of the wiping roller is large due to the cleaning sheet being wound around. Be previously phased state, it can ensure a reliable suction performance and wiping performance.

Embodiment 1 FIG.
1 and 2 are perspective views showing a schematic configuration of a vacuum cleaner suction tool according to Embodiment 1 for carrying out the present invention, FIG. 3 is a longitudinal sectional view of the vacuum cleaner suction tool, and FIG. FIG. 5 is a perspective view of the main part of the vacuum cleaner suction tool, FIG. 6 is a vertical sectional view of the main part of the vacuum cleaner suction tool, and FIG. 7 is the electric vacuum cleaner. It is a principal part longitudinal cross-sectional view at the time of operation | movement of the machine suction tool.

  1 to 5, the suction tool 1 is connected to the suction side of the vacuum cleaner main body (not shown) by an upper case 2, a lower case 3, and an upper and lower cases 2, 3 via a bellows hose and an extension pipe. The rotating shaft 4a of the tube 4 is sandwiched and configured to be rotatable. Further, a suction path 5 is provided between the upper case 2 and the lower case 3, and a suction port 6 is formed in the front surface of the lower case 3 of the lower part of the leading part that is continuous with the suction path 5 in the longitudinal direction. A front wheel 6 a is disposed in the vicinity of both front ends of the suction port 6, and a blade 7 is disposed behind the suction port 6 in parallel with the suction port 6.

Further, a roller storage chamber 8 is formed at the center of the lower surface of the lower case 3, and is formed in a space substantially independent of the suction path 5 and the suction port 6. A wiping roller 9 is provided in the roller storage chamber 8. A bearing 11 for fixing the support shaft 10 of the wiping roller 9 is formed at one end inside the roller storage chamber 8. A roller removal door assembly 12 is provided at one end, and a roller removal door assembly shaft portion 12 a is provided. It is inserted into the roller inner bearing 14 of the wiping roller 9, and is pivotally supported. If the roller body 13 is made of, for example, a brushed cloth, dry wiping can be performed. However, if the roller body 13 is made of, for example, a water-absorbing sponge, the roller body 13 is allowed to perform wet wiping by holding water. Is possible.
Further, a unidirectional rotary bearing 17 is provided by a bearing support shaft 16 inserted into the roller shaft 15. The connecting rod 18 restrained by the support shaft 10 is pivotally supported by the unidirectional rotary bearing 17. The roller removal door assembly 12 can be opened and closed, and the wiping roller 9 can be freely attached and detached, so that the wiping roller 9 can be cleaned.

Further, in the suspension mechanism 31, FIGS. 2, 3, as shown in FIG. 5, the movable arm 19 on the lower surface rear portion of the lower case 3 is rotatably supported by the lower case 3 by the movable arm shaft 20, the movable arm 19 is provided with a rear wheel support shaft 32 that rotatably supports the rear wheel 21. Further, a movable spring 22 is sandwiched between the lower case 3 and the movable arm 19 so that the movable arm 19 has elasticity within a predetermined range.
A pair of movable guide claws 23 disposed at both ends of the rear portion of the movable arm 19 are inserted into guide holes 24 provided at positions opposed to the movable guide claws 23 on the rear surface of the lower surface of the case 3. A mating engagement portion 23a is formed. The movable guide claw 23 guides the movement of the movable arm 19 by the compression and extension of the movable spring 22 sandwiched between the lower case 3 and the movable arm 19 and also serves as a stopper for defining the movable range.

  Here, the positional relationship between the connecting pipe 4 and the rotating shaft 4 a is such that the movable arm shaft 20 is arranged in front of the rotating shaft 4 a of the connecting pipe 4 and the rear wheel 21 is arranged behind the rotating shaft 4 a of the connecting pipe 4.

  Next, the operation will be described with reference to FIGS. Due to the suction action of the vacuum cleaner body (not shown) to which the suction tool 1 is connected, most of the dust passes from the suction port 6 of the suction tool 1 through the suction path 5 and through the connection pipe 4, and the bellows hose and extension pipe (not shown) are passed through. Through the dust collecting chamber of the vacuum cleaner body. At that time, the blade 7 disposed in parallel to the rear of the suction port 6 prevents the inflow of air from the rear of the suction tool 1 main body, prevents the suction force from the suction port 6 from being reduced, and reduces the suction force. Dust and the like are prevented from flowing out rearward from the mouth 6 and dust adhesion to the roller body 13 of the wiping roller 9 is reduced.

  The suction tool 1 cleans the floor surface by a cleaning operation that repeatedly advances and retreats on the floor to be cleaned. When the suction tool 1 moves forward, the suction tool 1 sucks dust by the suction action of the main body of the vacuum cleaner and the roller storage chamber 8. The rotation of the wiping roller 9 is stopped by the one-way rotation stopping action of the unidirectional rotation bearing 17 in the wiping roller 9 installed in the wiping roller 9, and the roller body 13 is compressed by the pressing action by the forward operation of the suction tool 1, In order to move the cleaning floor, the fine dust left by suction cleaning is surely wiped off the cleaning floor.

  Further, when the suction tool 1 is retracted, dust is sucked by the suction action of the main body of the vacuum cleaner, and is rotated by the one-way rotation action of the one-way rotation bearing 17 in the wiping roller 9. The rotation of the wiping roller 9 is a series of forward and backward cleaning operations. By stopping and rotating at the time of forward movement, the rotation of the wiping roller 9 is repeated at the time of forward movement. In the next advance, the outer peripheral surface of the roller body 13 that comes into contact with the surface to be cleaned is not located at the same location. By this action, the outer peripheral surface of the roller body 13 can be effectively used, and the surface to be cleaned can be cleaned more cleanly.

  Next, the effect of the suspension mechanism 31 at the time of advance of the cleaning operation of the suction tool 1 will be described with reference to FIGS. In particular, in wet wiping cleaning in which water is retained in the roller body 13 of the wiping roller 9, the operation appears remarkably as described later. In the initial state before the suction tool 1 is pressed against the surface to be cleaned through the proximal portion of the bellows hose and the extension tube (not shown) by the advance of the cleaning operation in FIG. 6, the rear wheel 21 provided at the rear portion of the lower case 3 is The movable spring 22 held between the movable arm 19 rotatably supported by the lower case 3 is in an extended state, and the rear portion of the lower case 3 and the outer periphery of the roller body 13 of the wiping roller 9 are cleaned. It is raised from the surface.

  When an operating force is applied from the direction of arrow A of the connection pipe 4 through the proximal portion of the bellows hose and the extension pipe (not shown) by the forward movement operation of the suction tool 1, the movable clamped between the movable arm 19 and the lower case 3. The spring 22 contracts by a slight amount, and the outer periphery of the roller body 13 of the wiping roller 9 comes into contact with the surface to be cleaned. Although the suction tool 1 tries to move forward in the direction of arrow B, it has resistance to forward movement due to the frictional resistance between the surface to be cleaned and the outer periphery of the roller body 13 of the wiping roller 9 that stops rotating when moving forward. As shown in FIG. 7, the movable spring 22 is further compressed, and the movable arm 19 comes into close contact with the lower case 3. In particular, in the wet process, since the frictional resistance between the wiping roller 9 whose rotation is stopped and the surface to be cleaned is large, the operation starts from the initial stage until the movable arm 19 is brought into close contact with the lower case 3. At this time, the suspension effect of the movable arm 19 and the rear wheel 21 due to the compression action of the movable spring 22 is connected until the suspension mechanism 31 sinks from the initial stage until the movable arm 19 comes into close contact with the lower case 3. The burden on the arm of the cleaning worker who applies the operation force from the direction of arrow A of the tube 4 and the shock are reduced.

Furthermore, when the operating force is continuously applied from the direction of the arrow A of the connecting pipe 4, the outer periphery of the roller body 13 of the wiping roller 9 is compressed, and sufficient adhesion to the surface to be cleaned can be achieved. The suction tool 1 has a slight resistance to the operating force from the direction of arrow A of the connecting pipe 4 while reliably catching fine dust and dirt on the surface to be cleaned by the tight contact of the roller body 13 to the surface to be cleaned. Advance in the direction of arrow B. During the forward movement, the movable spring 22 is contracted and the movable arm 19 is in close contact with the lower case 3. In a series of cleaning operations that repeat forward and backward, the forward movement ends and the backward movement is instantaneously. Therefore, immediately after the backward movement starts, the wiping roller 9 rotates and the contact position between the outer periphery of the roller body 13 and the surface to be cleaned is changed. Can be changed.

As described above, by providing the suspension mechanism 31 on the rear wheel 21 of the suction tool 1, when the wiping roller absorbs moisture and sucks it and performs wet wiping cleaning, the suspension mechanism 31 of the rear wheel sinks and the wiping roller Is moderately pressed against the surface to be cleaned, ensuring reliable suction and wiping performance. Further, it is possible to reduce a burden on the arm of the cleaning worker and a shock.
Moreover, since the rear wheel 21 was provided behind the rotating shaft 4a, when the suction tool 1 is moved backward by the cleaning operation, the front of the suction tool 1 can be prevented from floating in a bounding manner.

Embodiment 2. FIG.
FIG. 8 is a longitudinal sectional view of the vacuum cleaner suction tool according to the second embodiment, FIG. 9 is a main part longitudinal sectional view showing an operation of the vacuum cleaner suction tool, and FIG. 10 is an operation of the vacuum cleaner suction tool. FIG. 11 is a perspective view showing the operation of the vacuum cleaner suction tool. In addition, the same code | symbol is attached | subjected to the structure similar to Embodiment 1, and the description is abbreviate | omitted.

  In FIGS. 8 and 9, the storage chamber inner wall 25 has a gap along the outer periphery of the wiping roller 9 in the roller storage chamber 8 formed by opening the lower surface on the opposite side to the cleaning surface at the center of the bottom surface of the case 3. And is formed so as to cover the wiping roller 9. In this gap, there is an upper gap 8a above the vicinity of the rotation axis of the wiping roller 9, and a lower gap 8b in which the gap widens from the upper gap 8a toward the lower gap 8b between the blade 7 and the outer periphery of the wiping roller 9. It has.

  The upper gaps 8a are provided substantially evenly, and there is a suitable range in which the cleaning sheet 26 is wound so as to be sandwiched between the upper gaps 8a, and is determined according to the thickness of the cleaning sheet 26 and the outer diameter of the wiping roller 9. Further, the roller body 13 of the wiping roller 9 is preferably a friction body such as a sponge having a large frictional resistance at the outer periphery in a dry state.

Next, the operation will be described with reference to FIGS.
As shown in FIGS. 9 and 10, the cleaning sheet 26 is spread on a flat surface, and the wiping roller 9 of the suction tool 1 is placed so that the blade 7 is positioned in front of the end surface of the cleaning sheet 26, as indicated by an arrow C. Move backward. The cleaning sheet 26 spread on a flat surface is fed forward in accordance with the rotation direction of the wiping roller 9 (arrow D) by the pressure contact between the floor surface and the wiping roller 9. Then, the cleaning sheet 26 is in contact with the blade 7 that hangs down to the floor surface that forms the lower gap 8b, and has no escape space. It enters the upper gap 8 a of the storage chamber wall 25 in the roller storage chamber 8. Further, since the cleaning sheet 26 is fed by the rotation of the wiping roller 9, the cleaning sheet 26 proceeds along the storage chamber wall 25 and is wound around the outer periphery of the wiping roller 9 so as to be sandwiched by the upper gap 8 a.

  Further, when the cleaning sheet 26 is completely wound by the rotation of the wiping roller 9, the state shown in FIG. Although the end face 26a of the cleaning sheet 26 does not adhere to the winding circumference, the rotation of the wiping roller 9 is unidirectional as described in the first embodiment, and therefore the outer periphery of the roller body 13 of the wiping roller 9 during the cleaning operation. The cleaning sheet 26 wound around is not unwound. At this time, the outer periphery of the wiping roller 9 around which the cleaning sheet 26 is wound is increased in diameter and is in contact with the surface to be cleaned.

Here, the compatible range of the upper gap 8a on the outer circumference of the roller body 13 of the storage room wall 25 and the wiping roller 9 will be described.
The thickness of a general commercially available cleaning sheet 26 is about 1 to 2 mm, and the overlapping number of cleaning sheets 26 wound around the wiping roller 9 depends on the outer diameter of the wiping roller 9. For example, when an average distance of 1.5 mm and an outer diameter of the wiping roller 9 of 30 mm are wound around the outer periphery of the wiping roller 9 and partially overlapped, the upper interval 8a is larger than 5 mm. The holding action between the storage chamber wall 25 and the outer periphery of the roller body 13 of the wiping roller 9 is lost, and the cleaning sheet crushes in a wave shape while passing between the storage chamber wall 25 and the outer periphery of the wiping roller 9 and making one round. (Especially at the tip), even if the cleaning sheet 26 was fed, it could not enter between the storage chamber wall 25 and the outer periphery of the wiping roller 9.

Further, when the upper interval 8a is 3 mm, two sheets are partially overlapped, and 1.5 + 1.5 mm is 3 mm, and the distance between the outer wall of the storage chamber wall 25 and the wiping roller 9 is the thickness of the cleaning sheet. There is no clearance, it will not rotate and it will not wind to the end.
Therefore, when the upper interval 8a was set to 4 to 5 mm, the cleaning sheet 26 was wound around the outer periphery of the wiping roller 9 so as to be sandwiched by the upper gap 8a, and good results could be obtained.

  As described above, after the cleaning sheet 26 is wound around the wiping roller 9, the wiping operation similar to that in the first embodiment is performed. At this time, an operating force is applied from the direction of the arrow A of the connecting pipe 4 through the proximal portion of the bellows hose (not shown) and the extension pipe when the suction tool 1 moves forward, but wet wiping cleaning with water held in the roller body 13 of the wiping roller 9 is performed. Unlike the time, the friction resistance between the cleaning surface 26 and the cleaning sheet 26 wound around the outer periphery of the wiping roller 9 is small due to the good floor sliding property of the cleaning sheet 26, and the movable arm 19 and the lower case 3. The movable spring 22 held between the movable arm 19 and the movable arm 19 is slightly shrunk only in the initial stage where the operating force from the direction of the arrow A is applied. After that, the movable spring 22 is not contracted, and the operating force from the direction of the arrow A shifts to a force that moves the suction tool 1 in the forward direction. Therefore, the movable spring 22 is moved forward before the movable spring 22 sinks. In Put out Berri.

  Here, water is retained in the roller body 13 of the wiping roller 9 according to the first embodiment unless the suspension mechanism 31 having the configuration of the movable spring 22 sandwiched between the movable arm 19 and the lower case 3 is provided. In order to perform wet wiping cleaning, the outer periphery of the roller body 13 of the wiping roller 9 is configured to be in contact with the surface to be cleaned from the initial stage, and if the cleaning sheet 26 is wound around the outer periphery of the roller body 13 of the wiping roller 9, Since the diameter is increased, the front portion of the suction tool 1 is lifted with the contact point E with the surface to be cleaned as a fulcrum, and the predetermined suction performance of the suction tool 1 cannot be ensured.

  Therefore, the effect of the suspension mechanism 31 due to the configuration of the movable spring 22 sandwiched between the movable arm 19 and the lower case 3 does not lift the front part of the suction tool 1 and can secure a predetermined suction performance. Due to the good floor sliding property of the cleaning sheet 26 wound around the outer periphery of the roller body 13 of the wiping roller 9, the operation force can be performed with a light force at the proximal portion of the bellows hose (not shown) accompanying the cleaning operation. Further, as in the first embodiment, the contact surface of the cleaning sheet 26 wound around the outer periphery of the roller body 13 of the wiping roller 9 can be changed by the retraction operation of the suction tool 1, so that the cleaning sheet 26 The cleaning surface can be used effectively.

  As described above, when the cleaning sheet 26 is wound around the wiping roller 9 and dry cleaning is performed, even when the outer circumference of the wiping roller 9 is increased in diameter by winding the cleaning sheet 26, the reliable suction performance and Wiping performance can be secured.

It is an upper perspective view which shows schematic structure of the vacuum cleaner suction tool concerning Embodiment 1 of this invention. It is a lower perspective view which shows schematic structure of the vacuum cleaner suction tool concerning Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the vacuum cleaner suction tool concerning Embodiment 1 of this invention. It is a cross-sectional view of the vacuum cleaner suction tool concerning Embodiment 1 of this invention. It is a principal part cross-sectional view of the vacuum cleaner suction tool concerning Embodiment 1 of this invention. It is a principal part longitudinal cross-sectional view at the time of operation | movement of the suction tool for vacuum cleaners concerning Embodiment 1 of this invention. It is a principal part longitudinal cross-sectional view at the time of operation | movement of the suction tool for vacuum cleaners concerning Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the vacuum cleaner suction tool concerning Embodiment 2 of this invention. It is a principal part longitudinal cross-sectional view which shows operation | movement of the vacuum cleaner suction tool concerning Embodiment 2 of this invention. It is a perspective view which shows operation | movement of the vacuum cleaner suction tool concerning Embodiment 2 of this invention. It is a longitudinal cross-sectional view which shows operation | movement of the vacuum cleaner suction tool concerning Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Suction tool, 2 Upper case, 3 Lower case, 4 Connection pipe, 4a Rotating shaft, 6 Suction port, 6a Front wheel, 7 Blade, 8 Roller storage chamber, 8a Upper clearance, 8b Lower clearance, 9 Wiping roller, 10 Support Shaft, 13 Roller body, 19 Movable arm, 20 Movable arm shaft, 21 Rear wheel, 22 Movable spring, 23 Movable guide claw, 24 guide hole, 25 Storage interior wall, 26 Cleaning sheet, 31 Suspension mechanism, 32 Rear wheel support axis.

Claims (6)

A suction port body having a suction port on the lower surface and a suction path connected to the suction port;
A connecting pipe that is rotatably supported by a rotation shaft provided in the suction port body, and communicates with the suction port via the suction path ;
A roller storage chamber provided independently of the suction port and the suction path behind the suction port;
A wiping roller that is rotatably supported in the roller storage chamber and is detachably supported;
A suspension mechanism interposed between the lower surface of the inlet body and the rear wheel;
A vacuum cleaner suction tool characterized by comprising: One end of the suspension mechanism is rotatably supported by the support portion of the suction port body, and the other end has a movable arm having a support portion that rotatably supports the rear wheel,
A resilient member for biasing the movable arm downward;
The vacuum cleaner suction tool according to claim 1, wherein the vacuum cleaner suction tool is provided.   The suction tool for a vacuum cleaner according to claim 2, wherein the support portion of the movable arm is provided in front of the rotating shaft of the connecting pipe.   The vacuum cleaner suction tool according to claim 2, wherein the movable arm of the suspension mechanism includes a movable guide claw for guiding a movable direction and a range of the movable arm. A front wheel is provided in front of the inlet body,
The vacuum cleaner suction tool according to claim 2, wherein a support portion of the movable arm is provided between the front wheel and the rear wheel. A blade is provided at the edge on the suction port side of the lower surface opening of the roller storage chamber,
In the gap between the inner wall of the roller storage chamber and the outer periphery of the wiping roller, an upper gap above the vicinity of the rotating shaft of the wiping roller is set to a predetermined fitting range, and the blade and the wiping roller are passed from the upper gap. And a lower gap that widens toward the gap between the outer periphery of the cleaning sheet and the suction tool is placed so that the blade is positioned in front of one end of the flattened cleaning sheet. The one end of the cleaning sheet enters the upper gap along the blade in the lower gap, and is wound around the wiping roller so as to be sandwiched by the upper gap. Claim | item 1-5 suction tool for vacuum cleaners in any one of .

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