JPH11128123A - Vacuum cleaner suction port body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner suction port body improved in operability by preventing the suction port body from turning around an axial center of wheels arranged on both sides in cleaning. SOLUTION: This vacuum cleaner suction port body 1 provided with a suction opening 33 in a bottom wall 32 is constructed of a main body case, in which a connection tube 50 connected to a suction port of a vacuum cleaner is arranged in an opening 43 formed on a flat face 41a (upper wall) opposed to the bottom wall 32 at a certain interval, and a pair of wheels 60 arranged on both side parts of the main body case. In the suction port body part 1, the flat face 41a provided with the opening 43 is formed on the bottom wall 32 side beyond the face which includes an axial center P of the wheels 60 and is substantially parallel to the bottom wall 32. In this way, the main body case is prevented from turning around the axial center P of the wheels 60 when the main body case is moved by means of the connection tube 50 in cleaning, and consequently, operability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction port used by being connected to a suction port of a vacuum cleaner via a suction hose or the like.

[0002]

2. Description of the Related Art In general, a vacuum cleaner has a suction port directly connected to a suction hose connected to a suction port or an extension pipe connected to the suction hose, and is connected to a floor surface, a carpet or a futon. It is for cleaning the cleaning surface.

[0003] In this kind of suction port body, FIG.
There is a type as shown in FIG. That is, the suction port body 200 is composed of a main body case 201 having a rectangular projection surface from above, and a connection pipe 230 provided on an upper wall of the main body case 201 at a longitudinally intermediate portion. The connection pipe 230 is used by being connected to an extension pipe connected to a suction hose connected to a vacuum cleaner (not shown).

As shown in FIG. 10, the main body case 201 has a lower case 210 formed in a bottomed box shape having an opening 211 at the upper side, and the opening 211 of the lower case 210 is closed. It is composed of a lower case 210 and an upper case 220 integrally connected. In addition, a suction opening 212 formed along the longitudinal direction is provided on a bottom wall of the lower case 210, that is, a surface (hereinafter, referred to as a lower surface) facing the cleaning surface 246.

As shown in FIG. 9, the upper case 220 is provided with a recess 221 having a flat portion and a recess in the middle in the longitudinal direction from both sides.
An opening 222 communicating with the suction opening 212
Are formed.

[0006] The connecting pipe 230 has a vertical pipe section 231 at its tip end perpendicular to the flat surface of the recess 221,
An inclined tube portion 232 is formed by bending the vertical portion 231 with the flat surface being flush with the flat surface, and the vertical tube portion 231 is fitted to an opening edge of the opening 222. An annular engagement groove 233 is provided, and the engagement groove 233 is engaged with the opening edge of the opening 222 to be rotatably mounted.

[0007] A pair of traveling wheels 225 are provided on the side walls at both longitudinal ends of the upper case 220.
25a is supported by a bearing 224 provided on the side wall of the upper case 220 so as to be pivotally mounted.

The suction opening 200 constructed as described above is used directly as a suction hose connected to a vacuum cleaner or connected to an extension pipe connected to the suction hose as described above. It is. At the time of cleaning, when the suction port body 200 is operated to move in the left-right direction in FIG.
As a result, the surface to be cleaned moves smoothly, that is, travels, and the dust present on the surface to be cleaned is sucked from the suction opening 212 to be cleaned.

By the way, the portion where the pressing force applied to the main body case 201 via the connecting pipe 230 at the time of cleaning acts on the upper part where the opening 222 to which the connecting pipe 230 is attached is provided as shown in FIG. This is a flat surface of the concave portion 221 of the case 220. As shown in FIG. 10, the flat surface is located above the axis P of the wheel 225 by a dimension L.

Therefore, when the main body case 201 is operated so as to move in the left and right direction during cleaning, the main body case 201 rotates clockwise and counterclockwise in FIG. 10 around the axis P of the wheel 225. Moment works. Then, depending on the material of the surface to be cleaned, the wheels 225 do not rotate smoothly with respect to the surface to be cleaned, and the front lower edge and the rear lower edge of the main body case 201, that is, the front side of the lower case 210 on the leading side in the moving direction due to the operation force. Lower edge 210a
The rear lower edge 210b contacts the surface to be cleaned. That is, when the surface to be cleaned is hard, such as between the plates, the wheels 225 rotate smoothly, but there is no problem.
When the surface to be cleaned is a futon surface, the wheels 225 do not rotate smoothly, and the leading side in the moving direction of the suction opening body 200 bites into the futon surface, so that the movement of the suction opening body 200 becomes difficult. In addition, since the main body case 201 sinks into the futon surface, that is, the surface to be cleaned on the futon surface, the front lower edge 210a and the rear lower edge 210b come into contact with the surface to be cleaned. Lower edge 2
10a and the rear lower edge 210b further bite into the surface to be cleaned, and a state where movement, that is, running operation cannot be performed occurs.

[0011]

As described above, the conventional suction port body 200 is different from the upper case 220 of the connection pipe 230.
The portion that is engaged with and attached to the opening edge of the opening 222 of the concave portion 221, that is, the portion on which the pressing force of the main body case 201 of the connection pipe 230 acts is above the axis P of the wheel 225, that is, includes the axis P. Since the wheel 225 does not rotate smoothly on a surface to be cleaned such as a soft material such as a futon or the like, the cleaning is performed on the surface to be cleaned, which is higher than a surface parallel to the lower surface. In this case, the front lower edge and the rear lower edge of the main body case 201 come into contact with the surface to be cleaned, so that the rotational moment is further increased by this contact, so that the front lower edge and the rear lower edge bite into the surface to be cleaned. There is a problem that it becomes difficult to move. This also causes the main body case 201 to be sucked to the surface to be cleaned by the suction airflow from the suction opening 212, which further makes the movement more difficult and makes the cleaning operation substantially impossible.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an invention according to claim 1 has a suction opening in a bottom wall facing a surface to be cleaned and a space facing the bottom wall. A main body case provided with a connection pipe communicating with the suction port of the vacuum cleaner in an opening formed in the upper wall, and a pair of wheels provided on both sides of the main body case, traveling through the connection pipe. In the suction opening of the vacuum cleaner for cleaning the surface to be cleaned, the upper surface of the upper wall where the opening is formed is a plane that includes the axis of the wheel and is substantially parallel to the bottom wall or lower than the plane. This is a suction port of a vacuum cleaner formed on the wall side.

As described above, the first aspect of the present invention has a suction opening in a bottom wall facing a surface to be cleaned, and a suction opening of a vacuum cleaner in an opening formed in an upper wall facing away from the bottom wall. And a pair of wheels provided on both sides of the body case, provided with a connection pipe communicating with the body case,
A flat surface substantially parallel to the bottom wall including the axis of the wheel, the upper wall surface of the suction opening body of the vacuum cleaner that runs through the connection pipe and cleans the surface to be cleaned, including the axis of the wheel. Since it is formed on the bottom wall side from this plane, the axis of the wheel such that the leading side in the moving direction of the suction port body contacts the surface to be cleaned when running the main body case through the connection pipe. Is not generated in the main body case, so that the main body case can be smoothly moved.

According to a second aspect of the present invention, a suction opening is provided in a bottom wall opposed to the surface to be cleaned, and an opening formed in an upper wall separated from and opposed to the bottom wall communicates with a suction opening of the vacuum cleaner. In a suction opening body of a vacuum cleaner, comprising a main body case provided with a connection pipe, and a pair of wheels provided on both sides of the main body case, and running through the connection pipe to clean a surface to be cleaned. The connection pipe is formed by bending, and the bending point is a plane including the axis of the wheel and substantially parallel to the bottom wall or a suction port body of the vacuum cleaner positioned on the bottom wall side with respect to this plane. Things.

As described above, the invention according to claim 2 has a suction opening in the bottom wall facing the surface to be cleaned and communicates with the suction opening of the vacuum cleaner through an opening formed in the upper wall facing away from the bottom wall. A suction port body of a vacuum cleaner, comprising a main body case provided with a connecting pipe to be connected, and a pair of wheels provided on both sides of the main body case, and running through the connecting pipe to clean a surface to be cleaned. The connecting pipe is formed by bending the connecting pipe, and the bending point is located on a plane substantially parallel to the bottom wall including the axis of the wheel or on the bottom wall side with respect to this plane. Even when the main body case is bent, no rotational moment about the axis of the wheel is generated in the main body case when running the main body case through the connection pipe, so that the main body case can be moved smoothly. Work that can be done Aru Te those having.

According to a third aspect of the present invention, in the first or second aspect of the invention, the connection pipe provided in the opening in the upper wall is rotatable around the center of the opening. It is the suction port of the attached vacuum cleaner.

According to the third aspect of the present invention, in the first or second aspect of the present invention, the connection pipe provided in the opening in the upper wall can be turned about the center of the opening as the center of rotation. In addition to the operation of the invention described in claim 1 or 2,
Since the relative position between the connection pipe and the main body case can be changed according to various conditions of the surface to be cleaned, for example, at the corner of a room or under furniture, the cleaning operation can be performed satisfactorily.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view showing a state in which the suction port according to the embodiment of the present invention is connected to a vacuum cleaner.
Reference numeral 1 denotes a vacuum cleaner.
Although not shown, a dust collection chamber (not shown) in which a dust collection device is stored and an electric transmitter room in which an electric transmitter is stored are provided, and the dust collection chamber is provided at the front of the vacuum cleaner 1. Is provided with a suction port 1a communicating with the suction port 1a. One end of a suction hose 2 is connected to the suction port 1a.
A grip tube 2a provided with a handle 3 is attached to the other end of the, and extension tubes 4 and 5 are connected to the grip tube 2a. Further, a suction port body 20 is connected to the extension pipe 5.

Next, the suction port body 20 will be described.

As shown in FIG. 6, the suction port 20 has a main body case 2 having a substantially rectangular projection surface from above.
1. A connection pipe 50 and a pair of traveling wheels 60 connected to an extension pipe 5 connected to a suction hose 2 connected to the vacuum cleaner 1 and provided on an upper wall in a longitudinally intermediate portion of the main body case 21. It is composed of

As shown in FIG. 3, the main body case 21 has a lower case 30 formed in a bottomed box shape having an opening 31 on the upper side, and the opening 31 of the lower case 30.
The upper case 40 is integrally connected to the lower case 30 by screws (not shown) so as to close the lid, and a suction chamber 22 is formed inside.

The bottom wall 32 of the lower case 30 facing the surface to be cleaned is provided with a suction opening 33 formed along the longitudinal direction and communicating with the suction chamber 22 as shown in FIG. ing. In the following description, the left side of the main body case 21 in FIG. 3 is also referred to as a front side, the right side is referred to as a rear side, and the longitudinal direction is also referred to as a left-right direction.

As shown in FIGS. 2 and 3, the upper case 40 is provided with a recess 41 in which the longitudinal middle portion is recessed from both sides and a flat surface 41a is provided. Is formed with an opening 43 communicating with the suction chamber 22. Further, in the vicinity of the opening edge of the opening 43 on the inner side of the recess 41, that is, on the surface on the suction chamber 22 side,
Engaging projections 44 having a circular cross section are provided in the longitudinal direction of the upper case 40 and in a direction perpendicular to the longitudinal direction.

Next, the connecting pipe 50 has a vertical pipe section 51 perpendicular to the flat surface 41a of the concave section 41 at its distal end.
An inclined tube portion formed by being bent from the vertical tube portion 51 so as to be inclined upward and rightward in FIG. 2 with a point of intersection with the flat surface 41a and the center of the opening 43 as a bending point Q. 52.

A disc-shaped flange 53 is formed at the end of the vertical tube 51, and the axial center of the inclined tube 52 is attached to the outer peripheral edge of the flange 53. In the state of being perpendicular to the longitudinal direction, a pair of engaging recesses 54 (see FIG. 5) are formed in the longitudinal direction and the direction perpendicular to the longitudinal direction, respectively, and these engaging recesses 54 are provided in the upper case 40. It engages with the engaging projection 44 so as to be disengageable. A locking edge 55 is formed at the base of the vertical tube portion 51 so as to form an annular engagement groove 56 with the flange portion 53. An opening provided in the flat surface 41a is formed in the engagement groove 56. The connection pipe 50 is rotatably attached to the upper case 40 by fitting the opening edges of the 43.

When the connecting tube 50 is attached to the upper case 40, the connecting tube 50 is rotatable in the opening 43, and the engaging concave portion 54 is engaged with the engaging convex portion 44. The axial direction can be selectively positioned in a state orthogonal to the longitudinal direction of the upper case 40, that is, the main body case 21 as shown in FIG. 6, and in a state in which the axial direction coincides with the longitudinal direction as shown in FIG. Has become.

On both sides of the upper case 40, a pair of traveling wheels 60 is mounted.
The position of the wheels 60 attached to the upper case 40 of the two axles 61 is indicated by a line 62 (see FIG. 2) passing through the axis P. As shown in FIG. 3, it is located above the inflection point Q, that is, L1 above the flat surface 41a. A plane including the line 62 passing through the axis P and orthogonal to the bottom wall 32 is set at a position passing through the center of the opening 43 and the center of the suction opening 33 along the longitudinal direction.

That is, the upper surface of the flat surface 41a, which is the upper wall of the main body case 21 provided with the opening 43 to which the connection pipe 50 is attached, is higher than the plane parallel to the bottom wall 32 including the axis of the wheel 60. Also, the center of the opening 43 to which the connection pipe 50 is attached and the center along the longitudinal direction of the suction opening 33 are orthogonal to the bottom wall 32 of the axis 61. Are the same as

Thus, the line 62 passing through the axis P of the axle 61
Since the relationship between the connection pipe 50 and the flat surface 41a is as described above, the connection pipe 50 is connected through the connection pipe 50 in a state where the axial direction thereof is aligned with the front-rear direction of the main body case 21 as shown in FIG. When moving in the longitudinal direction as shown in FIG. 7, or when moving the main body case 21 in accordance with the longitudinal direction as shown in FIG. Flat surface 41
a, but this flat surface 41a is the axis P of the axle 61.
Is located below the plane including the axis P, that is, on the side of the low wall 32. Therefore, the counterclockwise direction (when moving forward) or the clockwise direction (when moving backward) around the line 62 passing through the axis P. ) Does not occur. The force generated in the moving direction by the connecting pipe 50 (the force in the direction indicated by the arrow b in FIG. 3) and the force received by the lower surface of the bottom wall 32 from the surface S to be cleaned (the force in the direction indicated by the arrow a in FIG. 3). Are mutually offset, the generation of the rotational moment is reliably prevented, and the movement of the main body case 21 is smoothly performed.

Next, the operation of the suction port body 20 configured as described above will be described.

First, as shown in FIG. 1, the suction hose 2 is connected to the vacuum cleaner 1 and
The extension pipes 4 and 5 are connected to the zero gripping pipe 2a, and the suction port body 20 is connected to the extension pipe 5 so that the connection pipe 50 has its axial direction orthogonal to the longitudinal direction of the main body case 21. Next, a power switch (not shown) provided on the vacuum cleaner 1 is closed to drive the electric blower, and the handle 3 is held, and the suction port body 20 is moved back and forth on the surface to be cleaned via the extension pipes 4 and 5. Operate to move in the direction.

By this operation, the dust existing on the surface to be cleaned is sucked together with the suction airflow from the suction opening 33, the dust is removed by the above-mentioned dust collector, and the suctioned airflow from which the dust has been removed is exhausted from the exhaust port (not shown). Is done.

The cleaning of the surface to be cleaned is performed in this manner. In this cleaning, the force applied to the main body case 21 via the suction port 20 connected to the extension pipes 4 and 5 is as follows.
Flat surface 4 provided with opening 43 to which connection pipe 50 is connected
1a. However, as described above, the flat surface 41a
Is located closer to the bottom wall 32 than the plane including the axis P of the axle 61, so that it can move counterclockwise (when moving forward) or clockwise about a line 62 passing through the axis P. No rotational moment is generated (in the case of moving to the rear side), and therefore, unlike the conventional case, the front lower edge or the rear lower edge of the main body case 21, that is, the front lower edge 30a or the rear lower edge of the lower case 30. The edge 30b is suppressed from approaching the cleaning surface S, and the front lower edge 30
a or the rear lower edge 30b comes into contact with the surface to be cleaned, and this contact prevents the rotational moment from being further increased so that the front lower edge 30a or the rear lower edge 30b bites into the surface to be cleaned. That is, the movement of the suction port body 20 is smoothly performed. Further, even if the front lower edge 30a or the rear lower edge 30b contacts the surface to be cleaned, the force applied to the flat surface 41a and the force received by the lower surface of the bottom wall 32 from the surface S to be cleaned cancel each other. As a result, the occurrence of the rotational moment is reliably prevented by the contact, and the front lower end edge 30a or the rear lower end edge 30b is prevented from biting into the surface to be cleaned, and smooth movement is performed.

This can be more effective when the surface to be cleaned is a soft futon or the like.

When the suction port body 20 is connected to the extension pipe 5 and the connection pipe 50 is connected with the axial direction thereof being along the longitudinal direction of the main body case 21 for cleaning, the suction pipe body 20 is placed in a state perpendicular to the longitudinal direction. Than in the case of the connection pipe 50,
Is parallel to the longitudinal direction of the axle 61, so that it can be more easily rotated around the axis of the axle 61. As described above, the flat surface 41a is higher than the plane including the axis P of the axle 61. Is also located on the side of the low wall 32, no counterclockwise or clockwise rotational moment is generated about the line 62 passing through the axis P, and the suction port body 20 moves smoothly. Things.

In the suction port body 1 configured as described above, the wheels 60 are attached to both sides of the main body case 21,
A flat surface 41a in which the opening 43 is formed is formed on the lower wall 32 side including a plane parallel to the bottom wall 32 including the axis P of the wheel 60, and a connection pipe is formed in the opening 43 provided in the flat surface 41a. When the main body case 21 is operated to run through the connecting pipe 50 connected to the extension pipes 4 and 5, a rotational moment about the axis P of the wheel 60 is applied to the main body case 21 because the main body case 21 is provided. Since it does not occur, the main body case 21 can be moved smoothly.

Also, since the connecting pipe 50 communicating with the opening 43 of the flat surface 41a is rotatably mounted, the relative position between the connecting pipe 50 and the main body case 21 can be determined, for example, at the corner of a room or under furniture. The cleaning can be performed satisfactorily because it can be changed according to various conditions of the surface to be cleaned. At this time, the engaging protrusion 44 is provided inside the flat surface 41 a, and the connecting tube 50 is provided with an engaging concave portion 54 that engages with and disengages from the engaging protrusion 44. Since the positioning is performed with respect to the axle direction and the direction perpendicular to the axle direction, the connecting pipe 50 and the main body case 21 can be integrally operated during the cleaning operation, so that the moving operation can be reliably performed. .

In the above embodiment, the flat surface 41a
Is made parallel to the bottom wall 32, but this need not be exactly parallel, but may be substantially parallel.

In the above-described embodiment, the flat surface 41a to which the connection pipe 50 is attached is located closer to the bottom wall 32 than a plane including the axis P of the wheel 60 and parallel to the bottom wall 32. , Which may be flush with the plane,
In this case as well, no rotational moment about the axis P of the wheel 60 is generated as in the case where the wheel 60 is located closer to the bottom wall 32 than the plane.

In the above-described embodiment, the connecting pipe 50 is inclined directly rearward from the opening 43 on the flat surface 41a. However, as shown in FIG. L by the part 151 and the horizontal pipe part 152
It is also possible to adopt a configuration in which the edge of the opening 43 is fitted into an engagement groove 156 formed at the tip of the vertical tube portion 151. Then, connect the connection pipe 150 to L
When it is formed by bending in the shape of a letter, the bending point of the connecting pipe 150, that is, the intersection Q1 between the axis of the vertical pipe 151 and the axis of the horizontal pipe 152 is shifted by L2 to the wheel 60 as shown in FIG.
The axle 61 is set so as to be positioned on the lower wall 32 side of the plane including the axis P in the counterclockwise direction about the axis P (when moving forward) as in the case of the above embodiment. ) Or clockwise (when moving rearward) does not occur.

Therefore, as in the case of the above-described embodiment, the front lower edge or the rear lower edge of the main body case 21 is prevented from approaching the surface S to be cleaned, and the contact increases the rotational moment. The front lower edge or the rear lower edge is prevented from biting into the surface to be cleaned, and the suction port body 20 is smoothly moved. Further, even if the front lower edge or the rear lower edge contacts the surface to be cleaned, the force applied to the bending point Q1 and
Since the lower surface of the bottom wall 32 and the force received from the surface to be cleaned S cancel each other, the occurrence of the rotational moment is reliably prevented by the contact, and the front lower edge or the rear lower edge bites into the surface to be cleaned. This prevents a smooth movement and improves the cleaning operation.

In FIG. 8, the same components as those in the above embodiment are denoted by the same reference numerals.

The one shown in FIG.
The bending point Q1 is positioned closer to the bottom wall 32 than a plane including the axis of the wheel 60 and parallel to the bottom wall 32. However, the bending point Q1 may be flush with the plane.
Also in this case, the bending point Q1 is set to the bottom wall 32 more than the plane.
As in the case where the wheel 60 is located on the side, no rotational moment about the axis P of the wheel 60 is generated.

[0045]

According to the first aspect of the present invention, as described above, a suction opening is formed in the bottom wall facing the surface to be cleaned, and an opening formed in the upper wall facing away from the bottom wall. It consists of a main body case provided with a connecting pipe communicating with the suction port of the vacuum cleaner, and a pair of wheels provided on both sides of the main body case. Since the suction opening body of the vacuum cleaner has the configuration in which the upper wall surface on which the opening is formed is formed on a plane substantially parallel to the bottom wall including the axis of the wheel or on the bottom wall side with respect to this plane, When running the main body case through the connection pipe, since the rotational moment around the axis of the wheel such that the leading side in the moving direction of the suction port body contacts the surface to be cleaned does not occur in the main body case, The body case can be moved smoothly It is those having the effect of that.

According to a second aspect of the present invention, a suction opening is formed in a bottom wall facing the surface to be cleaned, and an opening formed in an upper wall separated from and opposed to the bottom wall communicates with a suction opening of the vacuum cleaner. A main body case provided with a connection pipe, and a pair of wheels provided on both sides of the main body case, and a suction port body of a vacuum cleaner that runs through the connection pipe and cleans a surface to be cleaned. Since the connecting pipe is formed by bending and the bending point is located on a plane substantially parallel to the bottom wall including the axis of the wheel or on the bottom wall side with respect to this plane, the connecting pipe is bent. Even when formed, the main body case does not generate a rotational moment about the axis of the wheel when the main body case is operated through the connection pipe, so that the main body case can be moved smoothly. The effect Aru Te shall be.

According to a third aspect of the present invention, in the first or the second aspect of the present invention, the connecting pipe provided in the opening in the upper wall is rotatable around the center of the opening. Since it is configured to be attached, in addition to the effects of each of the first and second aspects of the present invention, the relative position between the connection pipe and the main body case can be variously cleaned, for example, at a corner of a room or under furniture. Since it can be changed according to the condition of the surface, it has an effect that good cleaning can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a suction opening according to an embodiment of the present invention is connected to a vacuum cleaner.

FIG. 2 is a front view of the suction port of the embodiment.

FIG. 3 is a cross-sectional view (a cross-sectional view taken along line XX in FIG. 2) of an intake port body according to the above-described embodiment, which is cut at an intermediate portion orthogonal to the longitudinal direction.

FIG. 4 is a plan view of the suction port of the embodiment as viewed from below.

FIG. 5 is a perspective view showing an engagement recess of the connection pipe according to the embodiment.

FIG. 6 is a plan view showing a state where the connection pipe of the suction port body of the embodiment is orthogonal to the longitudinal direction of the main body case.

FIG. 7 is a plan view showing a state in which the connection pipe of the suction port body according to the embodiment is arranged along the longitudinal direction of the main body case.

FIG. 8 is a cross-sectional view in a case where the connection pipe of the above embodiment is used as a connection pipe of another embodiment.

FIG. 9 is a front view of a conventional suction port body.

FIG. 10 is a cross-sectional view (a cross-sectional view taken along line YY in FIG. 7) of the above-described conventional suction opening body taken along an intermediate portion orthogonal to the longitudinal direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 20 Suction port body 21 Main body case of a suction body 30 Lower case (part of main body case) 32 Bottom wall of main body case 33 Suction opening of main body case 40 Upper case (part of main body case) 41 Upper case Recess 41a flat surface (upper case upper wall) 50 connecting pipe 60 wheel 61 axle of wheel P axis of axle Q, Q1 bending point of connecting pipe

Claims (3)

[Claims] 1. A main body case having a suction opening in a bottom wall facing a surface to be cleaned, and a connection pipe communicating with a suction port of a vacuum cleaner in an opening formed in an upper wall facing away from the bottom wall. The suction opening of the vacuum cleaner, which is composed of a pair of wheels provided on both sides of the main body case and runs through the connection pipe to clean the surface to be cleaned, in which the opening is formed. A suction opening body for a vacuum cleaner, wherein an upper surface of a wall is formed on a plane including the axis of the wheel and substantially parallel to the bottom wall or on a side of the bottom wall with respect to this plane. 2. A main body case having a suction opening in a bottom wall facing a surface to be cleaned and an opening formed in an upper wall facing away from the bottom wall and having a connection pipe communicating with a suction port of the vacuum cleaner. In the suction opening of the vacuum cleaner, which comprises a pair of wheels provided on both sides of the main body case and runs through the connection pipe to clean the surface to be cleaned, the connection pipe is bent. A suction port body for a vacuum cleaner, wherein the suction port body is formed and the bending point is located on a plane including the axis of the wheel and substantially parallel to the bottom wall or on the bottom wall side with respect to this plane. 3. The electric device according to claim 1, wherein the connection pipe provided in the opening in the upper wall is rotatably mounted around the center of the opening as a rotation center. Vacuum cleaner suction body.