JP2000126097A - Vacuum cleaner and suction port body therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction port body for a vacuum cleaner improving dust scrape-out performance with simple structure. SOLUTION: The lower face of a case body 24 of a suction port body 14 is provided with a plurality of recessed groove parts 40 positioned on the front side of a suction port 30, along a travel direction. In forming the groove parts 40,..., 40, wall parts 41 extended a long the travel direction are integrally formed between the groove parts 40,..., 40 so that the end edges face the opening edge of the suction port 30 to form the lower face of the case body 24. The front side ends of the wall parts 41,..., 41 are connected in comb shape by a wall-like connecting part 42 showing the action of a seal lip, along the opening edge of the suction port 30 in the same position as the lowermost face of the case body 24 to close the front side end side of the groove parts 40,..., 40. Only during retreat when lifting force acts, the integrated wall parts 41,..., 41 forming part of the case body 24 scrape out dust. Dust can be scraped out without using another member, and dust seizing performance can be improved with simple structure. The traveling performance of the case body 24 can be improved to facilitate cleaning work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner provided with a case body having an opening on a lower surface thereof, and a suction opening body thereof.

[0002]

2. Description of the Related Art Conventionally, as a suction port of this type of vacuum cleaner, for example, the configuration described in Japanese Patent Application Laid-Open No. 9-28630 is known.

[0003] The suction opening of the vacuum cleaner described in Japanese Patent Application Laid-Open No. 9-28630 has a rotatable cleaning body rotatably housed in a case body having an opening on the lower surface. In this rotary cleaning body, an axial air turbine is integrally provided coaxially at both ends in the axial direction, and the axial air turbine is rotated by the intake air from the intake ports opened at the rear ends of the case body. At the same time, the rotary cleaning body rotates to scrape dust on the floor surface and suck the dust from the suction port. In addition, a brush body is provided on the lower surface of the case body to scrape dust when the tip comes into contact with the floor surface.

[0004]

However, in the suction opening of the conventional vacuum cleaner described in Japanese Patent Application Laid-Open No. 9-28630, hair and thread dust are entangled in the brush body, and the entangled hair and thread are entangled. Removal of dust is complicated and unsanitary. Also, a step of attaching a separately formed brush body to the lower surface of the case body is required,
There is a problem that the number of parts increases and improvement in manufacturability cannot be expected.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a vacuum cleaner having a simple structure and improved dust scraping performance, and a suction port body thereof.

[0006]

According to a first aspect of the present invention, there is provided a vacuum cleaner including a case body, a suction opening formed in a lower surface of the case body, and the case body with respect to the suction port. And a plurality of grooves formed along the edge of the suction port and formed in a concave shape from the edge of the suction port toward the traveling direction. Things.

[0007] With respect to the suction port opened on the lower surface of the case body, a concave groove-shaped groove is positioned along at least one of the front and rear sides in the running direction of the case body from the edge of the suction port along the running direction. By providing multiple along the edge of the mouth,
Since a wall-shaped portion is formed between these grooves along the running direction where the edge of the wall faces the edge of the suction port, for example, when the case body is run on a carpet, the edge of the wall-shaped portion facing the edge of the suction port is formed. Since the portion scrapes out the dust from the carpet, the dust can be scraped out without using a separate brush member or the like, and the dust catching property is improved.

The suction body of the vacuum cleaner according to claim 2 is
In the suction port body of the vacuum cleaner according to claim 1, the groove portion is closed at a position other than the vicinity of the edge of the suction port.

Then, since the portion of the groove other than the vicinity of the edge of the suction port is closed, the negative pressure on the lower surface of the suction port is maintained, and the dust absorbing property is improved.

The suction body of the vacuum cleaner according to claim 3 is
The suction port body of a vacuum cleaner according to claim 1 or 2, wherein the groove is provided at a position forward of the suction port in the traveling direction.

Since the groove is provided at the front side in the traveling direction of the suction port, the end of the wall portion facing the edge of the suction port is located at the rear of the wall portion with respect to the traveling direction of the case body. Therefore, for example, when the case body is pressed against the floor when the case body is run with the end of the hose, the end of the wall-shaped portion does not scrape out dust at the time of forward movement, and the force for lifting the case body from the floor surface is low. Since the end of the wall-like portion scrapes out dust during the retreat, the traveling performance of the case body is improved,
Cleaning work becomes easy.

According to a fourth aspect of the present invention, there is provided an electric vacuum cleaner comprising: a main body of the vacuum cleaner; and a suction port of the electric vacuum cleaner according to any one of the first to third aspects connected to the main body of the vacuum cleaner. .

The suction opening of a vacuum cleaner according to any one of claims 1 to 3, wherein the dust can be scraped out with a simple structure without using a separate member in the cleaner body, and the dust catching property is improved. Because of the connection, dust is efficiently captured and cleaning efficiency is improved.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention;

In FIG. 5, reference numeral 1 denotes a cleaner body, which comprises a lower body case 2a having an open upper surface, and an upper body case 2b for closing a rear upper surface of the lower body case 2a. And a main body case 2 having a front upper surface opened by being joined to and sandwiching a bumper 3 at a peripheral edge including the above. The cleaner body 1 rotatably supports a lid 4 that closes the upper surface of the front side of the body case 2 so as to be openable and closable.

The main body case 2 is provided with a rotatable swivel wheel (not shown) on the front lower surface in the traveling direction, and a large-diameter driven wheel 6 is rotatably provided on the rear side surface of the main body case 2. The main body 1 can travel on a floor surface to be cleaned with the turning wheel and the driven wheel 6. Further, a handle 7 slidable in a vertical direction is provided at an upper portion of the main body case 2.

In the cleaner body 1, an electric blower chamber for accommodating an electric blower (not shown) is formed on the rear side, and communicates with the suction side of the electric blower and opens upward. A dust collection chamber which is opened and closed by the lid 4 and accommodates a dust collection filter is defined on the front side. further,
On the front side of the cleaner main body 1, a connection port 9 is formed which opens to the dust collection chamber and to which a hose 8 is detachably connected.

The hose 8 has a flexible hose body 11 and a connecting pipe provided at one end of the hose body 11 and removably inserted and connected to the connection port 9 of the cleaner body 1.
It comprises a grip 12 provided at the other end of the hose body 11 and connected to a suction port body 14 via an extension tube 13. The grip 15 is provided with operating means 17 having various switches 16, 16 for setting and operating the driving state of the electric blower.

On the other hand, as shown in FIGS. 1 to 4, the suction port main body 14 is horizontally long in the running direction and has a lower case made of a synthetic resin such as acrylonitrile-butadiene-styrene (ABS). 21 and this lower case
An upper case 22 removably covers the upper opening at the upper part of the upper part 21 and has a lower surface made of the same material.The upper case 22 sandwiches the soft member buffer 23 along the peripheral surface including the front surfaces of the lower case 21 and the upper case 22. And a convex-shaped case body 24 whose rear substantially center is projected rearward.

The case body 24 is formed by a rib 25 so as to have a horizontally long suction chamber 26, an air path chamber 27 communicating with a substantially rear center of the suction chamber 26, and an upper case located on both sides of the air path chamber 27. twenty two
An intake chamber 29 having an intake port 28 opening upward is defined, and a suction port 30 is formed on the lower surface of the suction chamber 26 facing the floor surface to be cleaned. A communication port 31 is formed between the suction chamber 29 and the suction chamber 26 at the lower end of the rib 25 on the front side that defines the suction chamber 29, so that the suction chamber 29 and the suction chamber 26 communicate with each other. At a position corresponding to the communication port 31 of the lower case 21, a horizontally long window portion 32 that opens downward is formed.

Further, on both ends of the front part of the lower case 21,
A driven front wheel chamber 36 in which a driven front wheel 36a is rotatably supported is formed. In addition, a pair of shaft support portions 37, 37 projecting toward the rear center of the lower case 21 in the direction toward the rear thereof have a driven rear wheel chamber 38 in which a driven rear wheel (not shown) is rotatably supported.
Are formed. In addition, the driven rear wheel is provided with a protection sheet (not shown) which is a flexible member such as a raised cloth or an elastic member such as rubber on an outer peripheral surface. And the case body 24 is
The driven front wheel 36a protruding downward from the lower surface of the case body 24
And the driven rear wheel can travel on a floor surface to be cleaned.

As shown in FIGS. 1 to 3, driven front wheel chambers 36, 36 are provided in front of the suction port 30 on the lower surface of the case body 24.
Along the opening edge of the suction port 30, a plurality of grooves 40 are formed along the opening edge of the suction port 30.
…, 40 are provided. And these grooves 40, ...,
Between 40, a plurality of wall-shaped wall portions 41 are integrally provided along the running direction of the case body 24 to constitute the lower surface of the case body 24, with the end edges facing the opening edge of the suction port 30. ing. , 41 are provided on the lower surface of the case body 24 with grooves.
, 40, so that the lower end surface facing the floor surface is flush with the lowermost surface, which is the position closest to the floor surface of the case body 24. Also, the front ends of the walls 41,..., 41 have a height dimension flush with the lowermost surface of the case body 24, and are formed in a wall-like shape along the opening edge of the suction port 30 by a connecting portion. The plurality of walls 41,..., 41 and the connecting portion 42 form a comb shape, and each of the grooves 40,.
However, the front end of the connecting portion 42 except for the vicinity of the edge of the suction port 30 is closed.

On the other hand, in the center of the rear part of the case body 24, a communication pipe 45 is disposed between the pair of shaft supports 37, 37.
The communication pipe 45 is connected to a substantially cylindrical connecting pipe (not shown) rotatably fitted to the rear of the case body 24 at a substantially central portion of the rear of the case body 24 so as to communicate with the air path chamber 27 and protrude rearward. One end is pivotally supported by the other end so as to be rotatable in a vertical direction so as to communicate with the connecting pipe portion. The communication pipe 45 is detachably connected to the cleaner main body 1 via the extension pipe 13 and the hose 8, and the suction port 30 communicates with the connection port 9 of the cleaner main body 1.

Further, a rotary cleaning body 54 rotatably supported by bearings 53 provided at both ends in the left-right direction of the suction chamber 26 is provided in the case body 24. The rotary cleaning body 54 includes a shaft 55, a shaft support member 56 rotatably provided at both ends of the shaft 55 and removably attached to the bearing 53, a cylindrical portion 57 fitted to the shaft 55, and A blade 58 as a cleaning member, which is a driving source, is provided integrally on the outer peripheral surface of the cylindrical portion 57 in a wall shape and a spiral shape. In FIG. 4, the blade 58 is shown in a straight line for convenience of explanation. And the rotary cleaning body 54
A floor having an uneven surface which faces the suction port 30 and whose lower end is located above a plane formed by the driven front wheel 36a and the driven rear wheel, and which does not come into contact with the flat floor surfaces but enters the suction port 30. The blade 58 is disposed so as to be in contact with the carpet as the surface.

The case body 24 has a communication port 31 communicating the intake chamber 29 and the suction chamber 26 and a window 32 of the lower case 21.
Rotator 60 constituting the intake air flow switching means so as to close
Are arranged. The rotating body 60 includes a substantially cylindrical roller portion 61 that constitutes a traveling direction detecting unit of the intake air flow switching unit, and a shaft portion 62 protruding coaxially at both axial ends of the roller portion 61. An intake air passage portion 63 as an air passage penetrating the roller portion 61 in the radial direction in a slit shape, and the intake air passage portion 63
And a guide portion 64 protruding along the opening edge of the opening. The guide portion 64 is located on the side of the intake chamber 29,
And a downstream guide portion 64b located on the suction chamber 26 side and protruding in a nozzle shape.

The rotating body 60 has a shaft portion 62 formed by the case body 24.
The wiping member 65 such as a brushed cloth provided on at least a part of the outer peripheral surface of the roller portion 61 is grounded to the floor surface, and the axial direction is along the rear edge of the suction port 30 along the left-right direction. As shown in FIG. Note that the rotation of the rotating body 60 is
When the upstream guide portion 64a contacts the edge of the window portion 32 or the edge of the communication port 31, the upstream guide portion 64a is restricted to a predetermined rotation range.

The intake air passage 63 of the rotator 60 has an upstream guide 64a in contact with the rear edge of the window 32, and the downstream guide 64b has a blade positioned above the rotary cleaner 54. 58
, The upstream guide portion 64a opens the communication port 31
The downstream guide portion 64b is formed so as to face the blade 58 located below the rotary cleaning member 54 in a state where the downstream guide portion 64b is in contact with the blade 58.

Further, a suction port is provided on the lower surface of the lower case 21.
The cleaning body (not shown), which is located behind the rotating body 30 and is located between the rotating bodies 60 and is long in the left-right direction and has a wiping member 65 provided on the lower surface with a brushing cloth like the rotating body 60, is detachable. It is installed.

Next, the operation of the above embodiment will be described.

At the time of cleaning, the suction body 14 is connected to the cleaner body 1 via the extension pipe 13 and the hose 8, and the hose 8
The suction port main body 14 is moved forward and backward on the floor surface by pushing and holding the grip portion 15.

Then, with the suction force generated by the drive of the electric blower of the cleaner main body 1, the air is sucked from the suction ports 28, 28 and also sucked from the suction port 30. Here, the resistance of the air passage from the outside through the lower surface of the case body 24 to the inside of the suction chamber 26 from the suction port 30 increases, and the amount of air suctioned from the suction ports 28, 28 tends to increase.

Further, in the case of a carpet having a long floor, such as a carpet, the floor enters into the suction chamber 26 from the suction port 30, so that the amount of air suctioned from the suction ports 28, 28 is further reduced. Increase.

Then, the air sucked from the suction ports 28, 28 flows into the suction chamber 29, is guided by the upstream guide portion 64a, flows through the suction air passage portion 63 of the rotating body 60, and flows through the downstream guide portion. 64b
Is blown onto the blade 58 of the rotary cleaning body 54 to rotate the rotary cleaning body 54 to reach from the air passage chamber 27 to the connecting pipe portion that supports the communication pipe 45.

Here, when the suction port body 14 is moved forward during cleaning, the suction port body 14 is pushed and held with the grip portion 15 of the hose 8, so that a force is applied to press the suction port body 14 against the floor surface. The wall provided on the lower surface of the suction port main body 14 has a height dimension such that the front end which is the front side at the time of forward movement is at the same position as the lowermost surface of the case body 24, and has a wall shape along the opening edge of the suction port 30. Is formed in a comb shape by being connected by the connecting portion 42 formed on the floor, for example, even when the floor surface has a relatively uneven surface such as a carpet, the floor surface and the suction port are pressed by the user. At the time of forward movement when the resistance with the main body 14 increases, the carpet hairs are laid down at the connecting portion 42, and the lower surface of the case body 24, that is, the end of the wall portion 41 is not caught on the floor surface, so that the car runs smoothly. it can.
Further, the front side of the suction port 30 is surrounded by the connecting portion 42, and the connecting portion 42 acts like a seal lip, so that a negative pressure on the lower surface of the suction port main body 14, that is, a negative pressure in the suction chamber 26 is secured. In addition, it is possible to prevent the dust absorption efficiency from being lowered.

Then, as the suction port main body 14 advances,
The wiping member 65 that comes into contact with the floor causes the rotating body 60 to rotate backward, which is a forward rotation with respect to the forward movement in the running direction, and the upstream guide portion 64a abuts on the rib 25 that opens the communication port 31 to rotate the rotating body 60. The forward rotation of 60 is restricted, and the downstream guide portion 64b faces the blade 58 located below the rotary cleaning body 54. Then, the intake air flowing into the intake chamber 29 is guided by the upstream guide portion 64a, flows through the intake air passage portion 63, and is sprayed from the downstream guide portion 64b to the blade 58 located below the rotary cleaning body 54. As a result, the rotary cleaning body 54 rotates in the direction opposite to the forward movement, and scrapes dust from the floor surface.

Further, the wiping member 65 of the rotating body 60 whose rotation to the backward rotation is restricted by the upstream guide portion 64a is in a state in which the front end side of the raised brush extends rearward, and strokes dust on the floor surface. The dust is wiped off in a state where the frictional resistance with the floor surface is small and the feeling of running is light so that it sweeps up.

On the other hand, when the suction port main body 14 is retracted during cleaning, the end of the wall portion 41 facing the front side edge of the suction port 30 is located behind the suction port 30 with respect to the traveling direction. The end portion is located on the leading side in the traveling direction. For this reason,
When the floor surface is a carpet or the like, the dust adhering to the carpet is scraped off such that the edge of the wall portion 41 is caught by the carpet by the retreat of the suction port main body 14. In addition, since the suction port main body 14 is retracted by holding the grip portion 15 of the hose 8, a force acts in a direction in which the suction port main body 14 is lifted from the floor surface. Therefore, even if the dust is scraped off so that the end of the wall portion 41 is hooked on the floor surface, a large load is not generated, and the traveling performance such as heavy traveling is hardly reduced, and the traveling can be easily performed. Then, the dust scraped off at the end of the wall 41 is sucked through the suction port 30 facing the end.

Then, by retreating the suction port main body 14,
The rotating body 60 rotates forward, which is a forward rotation with respect to the retreat, and the upstream guide portion 64a comes into contact with the edge of the window portion 32 of the lower case 21 to regulate the forward rotation of the rotating body 60, and the downstream guide portion 64b It faces the blade 58 located above the rotary cleaning body 54. Then, the intake air flowing into the intake chamber 29 is guided by the upstream guide portion 64a, flows through the intake air passage portion 63, and is sprayed from the downstream guide portion 64b onto the blade 58 located above the rotary cleaning body 54. As a result, the rotating cleaning body 54 rotates in the reverse direction with respect to the retreat, and scrapes dust from the floor surface.

Further, the wiping member 65 of the rotating body 60, whose rotation to the forward rotation is restricted by the upstream guide portion 64a, is in a state in which the tip side of the raised brush extends forward, and strokes dust on the floor surface. The dust is wiped off in a state where the frictional resistance with the floor surface is small and the feeling of running is light so that it sweeps up.

Then, the intake air blown from the downstream guide portion 64b is substantially perpendicular to the axial direction of the rotary cleaning body 54, that is, linearly along the running direction of the suction port main body 14, and is directed to the rotary cleaning body 54. After being sprayed, it flows so as to gather toward the center of the case body 24 along the axial direction of the rotary cleaning body 54, and flows from the air path chamber 27 to the communication pipe 45. For this reason, the distance over which the intake air flow acts on the rotary cleaning body 54 increases, and the rotational torque increases. In addition, the intake air flow receives dust from the suction port 30 because the rotary cleaning body 54 receives airflow resistance. Suction volume is secured. Further, since the rotating body 60 and the cleaning body are arranged along the edge of the suction port 30, the rotating body 60 and the cleaning body are in a state of securing a negative pressure of the suction port 30 like a seal lip. . Therefore, dust is efficiently sucked.

Further, a gap between the lower surface of the case body 24 and the floor surface is secured by the driven front wheel 36a and the driven rear wheel provided to protrude downward from the lower surface of the case body 24 between the boards. Can be prevented from being damaged.

Even if the dust is hooked on the end of the wall portion 41 and adheres to the end portion without being sucked from the suction port 30, when the suction port main body 14 is switched from the retreat to the forward state, the dust adheres. Dust is removed from the end of the wall 41 by friction with the floor surface and is sucked through the suction port 30. Furthermore, even if the removed dust adheres to the floor,
Since the 14 is advanced, the position where the dust adheres is the position facing the suction port, and is easily sucked from the suction port 30 and is scraped off by the rotary cleaning body 54, so that the dust can be reliably captured.

On the other hand, if the lower surface of the suction port body 14 is separated from the floor surface and opened when the hose 8 is moved above the floor surface for movement of furniture or movement of a cleaning location, the opening area becomes large. The air path resistance from the suction port 30 where the air path to the suction chamber 26 is not formed is changed from the suction ports 28, 28 to the suction chambers 29, 29.
Therefore, the amount of air sucked from the inlet 30 increases, and the amount of air sucked from the inlets 28 decreases. For this reason, the intake air blown to the rotary cleaning body 54 is weakened, and the rotation speed of the rotary cleaning body 54 is greatly reduced or stopped.

As described above, on the lower surface of the case body 24 that opens the suction port 30 on the lower surface, a concave groove portion 40 located in front of the suction port 30 and extending from the opening edge of the suction port 30 along the running direction. By providing a plurality of the, the end edge formed between these grooves 40, ..., 40 along the running direction facing the opening edge of the suction port 30, so that, for example, when the case body 24 is run on a carpet,
Since the end of the walls 41,..., 41 facing the opening edge of the suction port 30 sweeps out dust from the carpet, the integral wall 41, which is a part of the case body 24 without using a separate brush body or the like. …, 41
, The dust can be scraped out, the dust trapping property can be improved with a simple structure, and the cleaning efficiency can be improved.

Then, the walls 41,.
Are formed by providing grooves 40,..., 40 on the lower surface of the case body 24. For example, when the lower surface of the case body 24 is protruded in a rib shape, the wall 41,
…, 41 may be caught and the tatami may be damaged, but since the wall portion 41 is flush with the lower surface of the case body 24, the dust can be efficiently scraped out only in the case of a carpet in which fluff enters the lower surface. .

Also, the wall portions 41,..., 41 are connected at the connecting portion 42 to be flush with the lowermost surface of the case body 24 to close a part of the grooves 40,. Since the connecting portion 42 acts to seal the suction chamber 26 to ensure a negative pressure in the suction port 30, dust can be sucked in reliably without reducing the dust suction efficiency.

Further, since the grooves 40,..., 40 are provided on the front side in the traveling direction of the suction port 30, the ends of the walls 41,. It is located at the rear of the wall portion 41 with respect to the direction.
, 41 are not scraped off at the end of the wall 41,..., 41 when they are pressed against the floor, and the walls 41,. 41
Since the end of the case scrapes out the dust, the traveling performance of the case body 24 can be improved, and the cleaning operation can be easily performed.

In the above embodiment, the suction port 30
Although the wall portion is provided only on the front side of the suction port 30, it may be provided on the rear side of the suction port 30.

Although the connecting portions 42 are provided and the grooves 40,..., 40 are closed, the connecting portions 42 need not be provided. According to the configuration in which the connecting portion 42 is not provided, the dust located in front of the suction port main body 14 is sucked into the suction port 30 that communicates through the grooves 40,. Further, the connecting portion 42 may be provided so as to be embedded in the groove portion separately, or may be provided with a separate seal lip to close the front side of the groove portions 40,.

In the above embodiment, not only the vacuum cleaner of the canister type, but also the upright type in which the suction port body 14 is formed directly on the lower surface of the vacuum cleaner body 1, and the like, and the vacuum cleaner body 1 and the suction port The present invention can be applied to any configuration such as a self-propelled vacuum cleaner in which the main body 14 is integrated, and a configuration in which exhaust air discharged from an electric blower circulates and a rotary cleaning body is rotated by the exhaust air.

In the above description, one rotary cleaning body 54 is provided, which is rotated by being directly blown by the intake air flow. However, a plurality of rotary cleaning bodies or a rotary cleaning body may not be provided. It may be something that causes it. Further, as the rotary cleaning member 54, in addition to the blade 58, a rotary brush provided with a raised brush in a wall shape, a cleaning blade provided with a cloth blade portion, a brush or a cloth blade, and any cleaning member combining the blade 58 is provided. May be used.

[0052]

According to the suction port body of the vacuum cleaner according to the first aspect, the suction port is provided with a groove in a concave groove shape along the running direction from the edge of the suction port located before and after in the running direction of the case body. Since a plurality of grooves are provided, a wall-shaped portion is formed between the grooves along the running direction where the edge of the edge faces the edge of the suction port.Therefore, without using a separate member, the edge of the edge facing the edge of the suction port removes dust. Since it is scraped out, it is possible to improve the dust catching property with a simple structure.

According to the suction port of the vacuum cleaner according to the second aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first aspect, a portion of the groove except for the vicinity of the edge of the suction port is closed. ,
The negative pressure on the lower surface of the suction port can be maintained, and the dust absorbing property can be improved.

According to the suction port of the vacuum cleaner according to the third aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first or second aspect, the groove is located on the front side in the traveling direction of the suction port. For example, when the case body is pressed against the floor when the case body is run with the end of the hose, the end of the wall-shaped portion does not scrape out the dust at the time of forward movement, and the case body is lifted from the floor surface Since the end of the wall-like portion scrapes out dust when the force acts, the traveling performance of the case body can be improved and the cleaning operation can be facilitated.

According to the fourth aspect of the present invention, the dust can be scraped out with a simple structure without using a separate member, and the dust catching property can be improved. Since the suction body of the vacuum cleaner is connected, dust can be captured efficiently and cleaning efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a bottom view of a suction port main body showing an embodiment of the present invention.

FIG. 2 is a perspective view in which a part of the above is cut away.

FIG. 3 is a side sectional view of the suction port main body at the time of advancing.

FIG. 4 is a plan sectional view of the same.

FIG. 5 is a perspective view showing a cleaner body according to the first embodiment;

[Explanation of symbols]

 1 Vacuum cleaner body 14 Suction port body 24 Case body 30 Suction port 40 Groove

Claims (4)

[Claims] A case body, a suction opening formed in a lower surface of the case body, and at least one of front and rear of the suction body in a traveling direction of the case body, A suction port body for a vacuum cleaner, comprising: a groove formed in a recessed shape from an edge toward a traveling direction, and a plurality of grooves provided along an edge of the suction port. 2. The suction port body for a vacuum cleaner according to claim 1, wherein the groove is closed at a position other than the vicinity of the edge of the suction port. 3. The suction port body of a vacuum cleaner according to claim 1, wherein the groove is provided on a front side of the suction port in a traveling direction. 4. A vacuum cleaner comprising: a vacuum cleaner main body; and a suction port of the vacuum cleaner according to claim 1, which is connected to the vacuum cleaner main body.