JPH10179461A - Suction opening body for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction opening body for a vacuum cleaner improving the cleaning effect of a rotary cleaning body. SOLUTION: This suction body consists of a main body case 1 provided with a rotary cleaning body 20 disposed in the neighborhood of a suction opening 15 opening the side of a face to be cleaned in the state of being freely rotatably and consisting of an axis body 21 and a plurality of flexible blades arranged along an axial direction in the periphery of this axis body 21 and a motor 30 (driving source) rotation-driving this body 20, and a connection pipe fitted in this case 1 in the state of being rotatable. In this case, at least one of the blades is made to be a raised blade 22 forming raising 22c whose tip parts are inclined toward the axis body 21 on a face on the upstream side of a rotating direction to improve the scratching and wiping of dust to improve a cleaning effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having a rotary cleaning body provided with a blade made of a flexible member around the suction port.

[0002]

2. Description of the Related Art In a suction port used in a conventional vacuum cleaner, a blade made of a flexible member is mainly provided around a hard floor surface, such as between plates, for the purpose of cleaning the floor. There is an apparatus provided with a rotating cleaning body provided. The blade is generally formed of a thin rubber plate or a fabric, and some of the blades formed of a fabric are brushed.

[0003] The rotary cleaning body provided with the blade formed of the cloth can wipe off dust existing on the hard floor surface for the purpose, but is suitable for cleaning, that is, cleaning of the hard floor surface. It is not necessarily suitable for cleaning tatami or carpets (hereinafter referred to as soft floors). In particular, when cleaning a carpet on a soft floor, there is a disadvantage that dust existing on the carpet cannot be sufficiently captured. In addition, although the blade formed of the brushed cloth has an effect of capturing dust existing on the carpet surface as compared with the blade having a smooth surface, the blade formed of the conventional brushed cloth rotates in the direction of the brush. Since it is independent of the direction of rotation of the cleaning body, there is a disadvantage that it is not sufficient to reliably capture dust present on the carpet surface.

[0004]

As described above, a rotary cleaning body provided with a blade made of cloth, which is used for a suction port of a conventional vacuum cleaner, is suitable for cleaning a hard floor surface. However, there is a problem that cleaning a soft floor is not always satisfactory.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the invention according to claim 1 is provided rotatably in the vicinity of a suction opening having an opening on a cleaning surface side. A main body case including a shaft body and a rotary cleaning body including a plurality of flexible blades provided along the axial direction on the outer periphery of the shaft body, and a drive source for driving the rotary cleaning body to rotate; In the suction port body of the vacuum cleaner comprising the connection pipe provided in the main body case, at least one of the blades has a raised surface having a tip portion inclined toward the axial direction on a surface on the upstream side in the rotation direction. It is a suction port of a vacuum cleaner with the formed brushed blade.

According to the first aspect of the present invention, at least one of the flexible blades provided on the rotary cleaning member has a raised end whose tip is inclined toward the shaft. Since the brushed blade is used, the dust existing on the hard floor surface can be wiped off, and the dust existing on the soft floor surface can be scraped off by the brushing. Therefore, any of the hard and soft floor surfaces can be used. Can be reliably and efficiently cleaned.

According to a second aspect of the present invention, the shaft is rotatably disposed near a suction opening having an opening on the surface to be cleaned, and is provided along the shaft and the outer periphery of the shaft along the axial direction. Suction of a vacuum cleaner comprising: a main body case including a rotary cleaning body including a plurality of blades having flexibility; a drive source for driving the rotary cleaning body to rotate; and a connection pipe provided in the main body case. In the mouth body, at least two of the blades are raised on a surface on the upstream side in the rotation direction, and the raised portions are formed with raised ends inclined toward the axial direction,
A suction port of a vacuum cleaner having a non-raised blade disposed between the raised blades.

According to the second aspect of the present invention, at least two of the flexible blades provided on the rotary cleaning member are formed with a raised surface whose tip is inclined toward the shaft. With the brushed blades and the configuration in which the non-brushed blades are arranged between these brushed blades, while wiping dust existing on the hard floor surface,
Dust present on the soft floor surface can be scraped off by the brushing, and the lint can be prevented from becoming entangled with the brushed blade. Therefore, both the hard and soft floor surfaces can be reliably and efficiently cleaned, and the work of removing lint or the like from the rotary cleaning body can be reduced.

According to a third aspect of the present invention, there is provided the electric vacuum cleaner according to the first or second aspect, wherein the raised brush is formed on both the upstream side and the downstream side in the rotation direction of the rotary cleaning body. It is a suction port body.

According to the third aspect of the present invention having the above-described structure, both sides of the raised blade are raised, so that the rotation of the rotary cleaning body is further improved in addition to the effects of the first and second aspects of the present invention. Regardless of the direction, it has an effect that the floor can be efficiently cleaned.

According to a fourth aspect of the invention, in the invention of the third aspect, the raised blade is formed in a bifurcated cross-sectional shape by separating an upstream side surface and a downstream side surface in the rotation direction of the rotary cleaning body from substantially the base. It is a suction port of a vacuum cleaner.

According to the fourth aspect of the present invention, the raised blade is separated into a bifurcated cross section, so that the thickness of the raised blade can be reduced in addition to the effect of the third aspect, so that flexibility can be improved. It has the effect of being able to improve.

[0013]

FIG. 1 shows an embodiment of the present invention.
A description will be given based on FIG. FIG. 1 is a perspective view showing the entire suction opening 1. The suction opening 1 rotates a main body case 10, a rotary cleaning body 20 disposed in the main body case 10 and the rotary cleaning body 20. It is composed of an electric motor 30 and the like as a driving source for driving. A connection pipe 40 is provided on the rear side of the main body case 10.

The main body case 10 is composed of a lower case 11 and an upper case 12, and the lower case 11 and the upper case 12 are integrally connected via a bumper 13 by screws (not shown). . The lower case 11 is provided with a suction port 15 which is open on the lower surface, that is, the floor side which is the surface to be cleaned. Bearings 26c and 27c provided at both ends of the
Are rotatably supported by a bearing support provided on a lower case 11 (not shown).

As shown in FIGS. 2 to 4, the rotary cleaning body 20 includes a columnar shaft 21, a raised blade 22 and a non-raised blade 25 arranged on the outer periphery of the shaft 21. The shaft 21 is made of synthetic resin or aluminum or the like, and has a plurality of (four in this embodiment) insertion grooves 2 having an outer periphery opened along the axial direction on the outer periphery.
3a and 3b, these insertion grooves 21a are provided with locking projections 21b, 21b projecting from both sides at an intermediate portion to form a narrow gap G as shown in FIGS. A locking groove 21c is formed in the inner part of the protruding ridges 21b, 21b, that is, on the side of the center of the axis, in a substantially semicircular shape protruding toward the center of the axis, and both sides of the opening are directed away from each other. A curved surface portion is formed. In addition, this curved surface portion prevents concentrated stress from being applied to a part of the side surface when the raised blade 22 and the non-raised blade 25 are bent, and prevents damage such as breakage of the raised blade 22 and the non-raised blade 25. Is what you do.

Next, the raised blade 22 provided on the shaft 21 will be described. This brushed blade 2
Reference numeral 2 denotes a blade piece 22a formed by cutting a cloth called a lodging pile fabric made of fibers such as nylon and raised with a raised hair 22c into a strip shape, and is integrally formed on one end side of the blade piece 22a along the longitudinal direction. And an engaging portion 22b made of soft vinyl chloride or the like. The cross-sectional shape of the engaging portion 22b is formed to be similar to the cross-sectional shape of the locking groove 21c of the insertion groove 21a formed in the shaft body 21 and is formed slightly larger so as to be pressed into the locking groove 21c. ing.

The blade piece 22a, that is, the raised portion 22c of the cloth, is formed with its tip portion inclined toward the axial direction of the shaft body 21, that is, toward the shaft body 21, that is, raised. Since the cloth is raised inclining in the axial direction of the shaft body 21 as described above, when the rotary cleaning body 20 rotates as shown in FIG. 4, the surface of the carpet 60 as a soft floor surface or The dust existing between the furs 61 of the carpet 60 can be scraped off.

Next, the non-raised blade 25 disposed on the shaft 21 will be described. This non-brushed blade 2
5 is composed of a thin soft rubber plate, and has a strip-shaped blade piece 25a and a blade piece 25 as shown in FIG.
a at one end along the longitudinal direction of the shaft body 2
1 and a slightly larger engagement portion 25b.
b is lightly press-fitted into the locking groove 21c.

As shown in FIG. 3, two engaging grooves 21c, 21c formed in the shaft 21 and opposed to each other in the lateral direction are provided with engaging portions 22b of the raised blade 22 from one end of the shaft 21. It is inserted or pressed in along the axial direction,
Locking groove 2 into which engaging portion 22b of brushed blade 22 is inserted
Locking groove 21 vertically opposed to 1c, 21c
c and 21c are engaging portions 25b of the non-raised blade 25.
Are also inserted or pressed in from the axial direction. Then, the raised blade 2 is inserted into each locking groove 21b of the shaft 21.
2 and the non-raised blade 25, the locking member 26 and the locking member 27 are fixed to both ends of the shaft body 21 by appropriate means such as bonding as shown in FIG. And the movement of the shaft body 21 of the non-raised blade 25 in the left-right direction is restricted.
c, that is, it is not detached from the insertion groove 21a. The locking member 26 has a toothed pulley 26a.
Are integrally formed and the shaft 26b is fixed. A bearing 26c is attached to the shaft 26b. A shaft 27b is fixed to the locking member 27, and a bearing 27c is similarly attached to the shaft 27b.

The bearing 26c and the bearing 27c
Is rotatably disposed in the main body case 1 by being supported by a bearing support (not shown) provided in the lower case 11 as described above.

The outer periphery of the shaft body 21 is arranged such that the raised blades 22 and the non-raised blades 25 are alternately arranged in the circumferential direction of the shaft body 21, that is, such that the raised blades 22 are not continuous in an adjacent state. Adjacent brushed blade 2
When the non-brushed blade 25 is arranged between 2 and 22,
As shown in FIG. 8, there is an advantage that it is possible to prevent the lint 62 and the like from being wound around the outer periphery of the raising brush 22 by the raising brush 22c as in the case where the raising blades 22 are continuously arranged.

An electric motor 30 as the drive source is mounted in the main body case 1 by a mounting screw (not shown), and an output shaft of the electric motor 30 is provided with a toothed pulley 31. A drive belt 33 is hung between 31 and the toothed pulley 26 a of the rotary cleaning body 20, and the rotary cleaning body 20 is driven to rotate by an electric motor 30 via the drive belt 33. The main body 10 is provided with a circuit device 35 including a printed board 35a and various circuit elements 35b mounted on the printed board 35a.
The circuit device 35 and the electric motor 30 are connected via a lead wire (not shown).

A pair of running wheels 14 are provided at both front end portions of the lower case 11, and a pair of large running wheels are provided at a rear portion of the lower case 11 (not shown). ing.

The connecting pipe 40 is mounted so as to be rotatable in the vertical direction in FIG. 1, and a connecting portion 41 is formed at the rear end of the connecting pipe 40.
1 is provided with a connection pin 42, and this connection pin 4
The base 2 is connected to the circuit device 35 via a lead wire (not shown).

The suction port 1 constructed as described above is connected to a suction hose 51 connected to a vacuum cleaner 50 and connected to an extension pipe 52 as shown in FIG. When connecting the connecting portion 41 to the extension tube, the connection pin 42 is connected to a female connector (not shown) provided on the extension tube. In addition,
A power supply line (not shown) is provided inside the extension pipe 52 and the suction hose 51, and electric power is supplied from the vacuum cleaner 50 via the distribution line. The vacuum cleaner 50 includes a main body case 53 and a dust collection chamber 54 provided inside the main body case 53 and containing a dust collection bag 54a, similarly to a conventionally known vacuum cleaner.
And an electric blower 55 provided on the downstream side of the air blower.

An operation handle 51a is provided at a distal end of the suction hose 51, and the other side of the extension pipe 52 is connected to the operation handle 51a. The operation handle 51a has a cleaner drive switch 51b for driving / stopping the electric blower 55, a rotary cleaner drive switch 51c for driving / stopping the electric motor 30 of the suction port 1, and an output of the electric blower 55. And an air volume adjusting switch 51d for adjusting the air volume by adjusting the air volume.

Next, the operation of the suction port 1 will be described. First, in use, the suction port body 1 is connected to the extension pipe 52 connected to the suction hose 51 of the vacuum cleaner 50 as shown in FIG. 5, and then the cleaner drive switch 51b provided on the operation handle 51a is closed. Vacuum cleaner 50
Is turned on, and the rotary cleaning body drive switch 51c is closed to drive the electric motor 30 to rotate the rotary cleaning body 20. The rotating cleaning body 20 is configured to rotate in a counterclockwise direction as shown in FIGS. 3 and 4, and by the rotation in the counterclockwise direction, the raised portion 22 c of the raised blade 22 becomes one of the soft floor surfaces. Is a direction in which dust existing on the carpet 60 is scraped off.

Then, the suction opening 1 is moved by the operation handle 51a on the upper surface of the carpet 60 in the front-rear direction while the rotary cleaning body 20 is rotated, thereby performing cleaning. The brushed blade 22 that rotates together with the rotary cleaning body 20 during this cleaning has a raised portion 22c whose tip is inclined toward the axial direction of the shaft body 21. The dust present between the hairs 61 is scraped or scraped off and at the same time these dusts are removed by the vacuum cleaner 5.
The dust is collected in the dust collecting chamber bag 54a through the extension pipe 52 and the suction hose 51 by the suction airflow of 0. Therefore, dust existing between the upper surface of the carpet 60 and the bristle feet 61 can be reliably and efficiently collected. Further, since the non-raised blade 25 is disposed between the adjacent raised blades 22, dust existing between the bristle feet 61 of the carpet 60 during rotation is beaten out by the non-raised blade 25, The beaten dust is scraped off by the raising brush 22 to further enhance the cleaning effect. Further, since the non-raised blades 25 are disposed between the adjacent raised blades 22, the lint 62 and the like are blocked by the non-raised blades 25 as described above, so that the lint 62 is wound around the raised blades 22 as described above. Sticking is prevented.

Further, even in the case of a tatami mat having a soft floor, similarly to the case of the carpet 60, dust existing on the tatami mat has a tip portion directed toward the axis of the shaft 21. The dust that has been scraped or scraped off by the inclined raised brushes 22c is collected in the dust collection chamber bag 54a by the suction airflow of the vacuum cleaner 50. Also, dust present between the tatami mats during the rotation of the rotary cleaning body 20 is beaten out by the non-raised blade 25, and the beaten-out dust is scraped off by the raised brush 22. Further, the cleaning effect is enhanced. Further, since the non-raised blade 25 is disposed between the adjacent raised blades 22, the lint 62 and the like are prevented from winding around the raised blade 22.

Further, even when the floor surface is a hard floor surface such as a space between plates, dust existing on the hard floor surface is scraped by a raised brush 22c whose tip is inclined toward the axis of the shaft 21. This scraped dust is removed by the vacuum cleaner 5
The dust is collected in the dust collection chamber bag 54a by the suction airflow of zero. In addition, the stains on the hard floor surface are caused by the brushed blade 2.
2 and a polishing effect can be obtained. Further, since the non-raised blades 25 are arranged between the neighboring raised blades 22, the lint and the like are prevented from being wound around the raised blades 22 as described above.

In the above embodiment, the raised blades 22 and the non-raised blades 25 are provided on the shaft 21 in a positional relationship parallel to the axis of the shaft 21. It is good also as a structure provided spirally.

In the above embodiment, the motor 30 is used as the drive source for driving the rotary cleaning body 20 to rotate. However, the drive source may be a turbine that rotates by suction air, that is, a fan. .

Further, in the above embodiment, the number of the raised blades 22 and the number of the non-raised blades 25 are each 2
However, this number can be set to an appropriate number depending on the size of the outer shape of the rotary cleaning body 20 and the like.

In the above embodiment, the non-raised blades 25 are arranged between the adjacent raised blades 22. However, depending on the number of the raised blades 22, the non-raised blades 25 may be arranged between all the raised blades 22. The configuration in which the raised blades 25 are not necessarily required. However, when the non-raised blade 25 is arranged between all the adjacent raised blades 22, as described above, long dust such as lint can be blocked by the non-raised blade 25. Brushed blade 22
This has the advantage of preventing winding around.

In the above-described embodiment, the raised portion 22c is formed only on one surface of the raised blade 22, that is, the surface on the upstream side in the rotation direction of the rotary cleaning body 20, but this is not the case with FIG.
As shown in the figure, the raised surface 22c may also be formed on the surface on the downstream side in the rotational direction to form the raised surface on both surfaces. In such a case, the suction opening is moved in the front-rear direction during cleaning. This is particularly effective in a case where the rotary cleaning body 20 is rotated forward and backward in accordance with the movement of 1. That is, regardless of the direction in which the rotary cleaning body 20 rotates, the dust present on the floor is scraped or scraped off by the raised brush 22c whose tip is inclined toward the shaft 21. The dust that has been scraped or scraped out is collected by the dust collecting chamber bag 54 by the suction airflow of the vacuum cleaner 50.
Since the dust is collected in the area a, the dust can be surely and efficiently collected. In FIG. 6, FIG.
The same reference numerals are given to the same parts as.

Further, in the above embodiment, the raised blade 22 is formed of the raised fabric 22c.
For example, a brush 22c may be formed by forming a needle-like projection integrally formed on one or both surfaces of a flexible synthetic resin thin plate with the thin plate. When formed of a synthetic resin in this manner, the brushed blade slides on the floor surface due to the appropriate elasticity of the thin plate, so that the dust scraping effect can be enhanced. In this case, when the raised surface 22c can be made thinner and the floor surface is a hard floor surface, a polishing effect can be obtained, and no tapping sound is generated even when the floor surface is hit.

When the raised blade 22 is made of a cloth or the like on which the raised blade 22c is formed on both sides as described above, the thickness of the cloth and the like is increased, the flexibility is reduced, and the floor surface is improved. Since the sliding contact may be hindered, in the case of such a configuration in which both sides are raised, as shown in FIG. 7, the blade piece 22a separates the one surface and the other surface from the central portion thereof. The blade may be divided into two in the surface direction to form divided blade pieces 122a, 122a to reduce the thickness thereof. Such a configuration increases flexibility and improves sliding contact with the floor surface. It can be. Further, in order to separate the one surface and the other surface from the central portion in this way, for example, a cloth or the like on which only one side is raised is made to have the raised sides facing each other, and one end side is made of soft vinyl chloride. Engaging portion 22 made of
b can be formed integrally. 7, the same parts as those in FIG. 3 are denoted by the same reference numerals.

When it is desired to give the brushed blade 22 made of cloth a predetermined restoring force, the brush pieces 22a are formed on the surface of the blade piece 22a where the brushed portions 22c are not formed or on both surfaces.
When 2c is formed, the above-mentioned restoring force can be provided by integrally forming an elastic thin film or a thin plate member formed of a synthetic resin between both surfaces.

[0039]

According to the first aspect of the present invention, at least one of the flexible blades provided on the rotary cleaning member has a raised end whose tip is inclined toward the shaft. With the brushed blade formed, the dust and dirt present on the hard floor surface are wiped off,
Since dust existing on the soft floor surface can be scraped off by the raising, the hard and soft floor surfaces can be reliably and efficiently cleaned.

According to a second aspect of the present invention, at least two of the flexible blades provided on the rotary cleaning body are formed by raising the tip of the flexible blade toward the axial direction as the raising blade. Since the non-raised blades are arranged between the raised blades, dust and dirt present on the hard floor can be wiped off, and the dust present on the soft floor can be scraped off by the raised. In addition, the present invention has the effect of preventing entanglement of lint and the like with the raised blade. Therefore, both the hard and soft floor surfaces can be reliably and efficiently cleaned, and the work of removing lint or the like from the rotary cleaning body can be reduced.

The third aspect of the present invention provides the effect of each of the first and second aspects of the present invention, since both surfaces of the raised blade in the first or second aspect of the invention are raised. In addition to this, there is an effect that the floor surface can be cleaned regardless of the rotation direction of the rotary cleaning body.

According to a fourth aspect of the present invention, in the third aspect of the invention, the raised blade is separated into a bifurcated cross section. This has the effect that the flexibility can be improved because it can be made thin.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire suction port of a vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a side view of a rotary cleaning body of the suction port body of the embodiment.

FIG. 3 is a cross-sectional view (cross-sectional view taken along line XX in FIG. 2) of the rotary cleaning body of the suction port body of the embodiment.

FIG. 4 is a view for explaining the operation of the rotary cleaning body of the embodiment (a cross-sectional view taken along line XX in FIG. 2).

FIG. 5 is a perspective view showing a state in which the suction opening body of the embodiment is connected to a vacuum cleaner.

FIG. 6 is a cross-sectional view showing another embodiment of the raised blade of the rotary cleaning body of the embodiment.

FIG. 7 is a sectional view showing still another embodiment of the raised blade of the rotary cleaning body according to the embodiment.

FIG. 8 is a diagram illustrating a state in which lint and the like are wound around the raised blade when only the raised blade is provided on the rotary cleaning body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction port body 10 Main body case 15 Suction port 20 Rotary cleaning body 21 Shaft body 22 Brushed blade 22c Brushed 25 Non-brushed blade 30 Electric motor (drive source)

Claims (4)

[Claims] 1. A shaft body and a plurality of flexible blades provided along the axial direction on an outer periphery of the shaft body and rotatably disposed in the vicinity of a suction opening opened on the surface to be cleaned. A main body case including a rotary cleaning body including a rotary cleaning body and a drive source for driving the rotary cleaning body to rotate, and a suction port body of a vacuum cleaner including a connection pipe provided in the main body case. At least one is a brushing blade in which a raised portion is formed on a surface on the upstream side in the rotation direction with a raised portion whose tip is inclined toward the shaft body direction. 2. A shaft body and a plurality of flexible blades provided along the axial direction on the shaft body and rotatably disposed in the vicinity of a suction port opened on the cleaning surface side. A main body case including a rotary cleaning body including a rotary cleaning body and a drive source for driving the rotary cleaning body to rotate, and a suction port body of a vacuum cleaner including a connection pipe provided in the main body case. At least two brushing blades are formed on the upstream surface in the rotation direction with raised brushes formed by raising the tips of the raised portions toward the axial direction, and non-raised blades are arranged between the raised blades. Machine suction body. 3. The suction port of a vacuum cleaner according to claim 1, wherein the raised brush is formed on both the upstream and downstream sides in the rotation direction of the rotary cleaning body. body. 4. A vacuum cleaner according to claim 3, wherein the raised blade is formed to have a bifurcated cross section by separating an upstream side surface and a downstream side surface in the rotation direction of the rotary cleaning member from substantially a base. Suction body.