JP2016016040A - Suction port body of vacuum cleaner, and vacuum cleaner provided with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction port of a vacuum cleaner which is capable of cleaning a narrow clearance when the suction port is moved laterally and suppressing forward leaning phenomenon when the suction port is moved forward.SOLUTION: There is provided a suction port body of a vacuum cleaner in which the distance between a turning center axis and a bottom surface of the suction port body is shorter than the distance between the turning center axis and a front surface of the suction port body, in a plane view of the suction port body in a state where a first connection pipe is turned so that a center line of a second connection pipe is substantially perpendicular to the bottom surface of the suction port body, the center line of the second connection pipe is positioned within longitudinal width of the suction port body, and in a plane view of the suction port body in a state where the first connection pipe is turned so that the center line of the second connection pipe is substantially horizontal to the bottom surface of the suction port body, the center line of the second connection pipe is lower than the suction port body.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a suction body of a vacuum cleaner and a vacuum cleaner including the same.

  As a background art in this technical field, there is Japanese Patent No. 3457541 (Patent Document 1). In this publication, there is a main body case having a suction port that opens toward a surface to be cleaned, a first air passage through which a suction airflow from the suction port passes, and a rotation axis that is parallel to the longitudinal direction of the suction port. A first pipe connected to the main body case so as to be rotatable around, and a second pipe having a second air flow path communicating with the first air flow path and rotatably connected to the first pipe; The first and second air flow paths are arranged in a substantially straight line in the side projection, and the rotation axis of the second pipe is made substantially perpendicular to the first air flow path, and the main body case is accompanied with the rotation of the first pipe. The sliding portion of the first pipe that slides is disposed inside the substantially rectangular main body case in a planar projection so that the first pipe can be inclined in the depth direction, and the suction is obtained by rotating the second pipe. A suction port body (hereinafter referred to as a suction body) that can be inclined in the longitudinal direction of the mouth has been proposed. There. The suction body is configured such that when the first pipe is uprighted, the suction body fits in a space within the width of the main body case in the depth direction so that a narrow gap can be cleaned.

Japanese Patent No. 3457541

  However, since the mouthpiece described in Patent Document 1 has the rotation axis of the first pipe at substantially the center in the depth direction of the main body case, when the mouthpiece is pushed forward, a front turning phenomenon occurs. There is a risk. The front edge is a phenomenon in which the back of the mouthpiece is lifted around the front end of the mouthpiece due to contact resistance with the floor surface during forward operation of the mouthpiece, and the bottom surface of the mouthpiece is inclined with respect to the floor surface. It is.

  An object of the present invention is to provide a suction body for a vacuum cleaner that can easily clean a narrow gap and that is less likely to cause a front turning phenomenon during forward operation of the suction body, and a vacuum cleaner using the same. .

The present invention has a rotary cleaning body having a rubbing member that rubs a surface to be cleaned, a suction body provided on the bottom surface with a suction port for sucking dust, and a suction joint that communicates with the suction body. The suction joint is composed of a first connecting pipe and a second connecting pipe,
One end of the first connecting pipe in the longitudinal direction is pivotally connected to the suction mouth body about the rotation center axis, and the other end of the first connecting pipe in the longitudinal direction is connected to the rotation axis. And is pivotally connected to one end of the second connecting pipe, and the axial direction of the rotational central axis is substantially parallel to the longitudinal direction of the suction body, and the axial direction of the rotational axis is The distance between the rotation center axis and the bottom surface of the mouthpiece body is shorter than the distance between the rotation center axis and the front surface of the mouthpiece body, In the side projection of the mouthpiece in a state where the first connection pipe is rotated so that the centerline of the two connection pipes is substantially perpendicular to the bottom surface of the mouthpiece body, the centerline of the second connection pipe is It is located within the front-rear width of the mouthpiece body, and the center line of the second connecting pipe is substantially horizontal with the bottom surface of the mouthpiece body. In aspects projection of the suction body of the serial first connecting pipe while being rotated, the center line of the second connecting tube is characterized in that the lower than the height of the suction port body.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to clean a narrow clearance gap, at the time of forward operation of a suction body, the suction body of a vacuum cleaner which is hard to generate the front turning phenomenon, and a vacuum cleaner using the same.

It is an appearance perspective view showing the whole vacuum cleaner concerning a 1st embodiment of the present invention. It is a top view of a mouthpiece. It is a bottom view of a mouthpiece. It is CC sectional drawing of FIG. It is an exploded view of a suction joint. It is a figure showing a mode that the location where the width | variety of the clearance gap between furniture is narrow is cleaned. It is a figure showing the flipping phenomenon before at the time of suction mouth advance. It is the figure which showed the front turning moment in the side view of the mouthpiece. It is AA sectional drawing of FIG. 2 in the state which made the 2nd connection pipe substantially horizontal with respect to the floor surface. FIG. 3 is a cross-sectional view taken along the line BB in FIG. 2 in a state where the second connection pipe is substantially perpendicular to the floor surface.

  Embodiments according to the present invention will be described below with reference to the drawings as appropriate.

  As shown in FIG. 1, the vacuum cleaner 1 includes a vacuum cleaner body 2, an operation tube 4 connected to the hose portion 3 and provided with a hand operation switch SW and the like, an extension tube 5 provided to be extendable and retractable, The mouthpiece 6 is constituted.

  The vacuum cleaner body 2 includes an electric blower 2a that generates a suction force, a dust collection portion 2b that stores dust collected by the suction force of the electric blower 2a, and the like. In this embodiment, a so-called cyclonic vacuum cleaner will be described as an example. However, the present embodiment may be applied to a so-called paper pack type vacuum cleaner.

  One end of the hose part 3 is connected to the connection port 2c of the cleaner body 2 so as to communicate with the dust collecting part 2b of the cleaner body 2. Further, the other end of the hose portion 3 is connected to one end of the operation tube 4.

  The operation tube 4 includes a handle 4a provided with a hand operation switch SW and the like, a power supply terminal (not shown) supplied with power from the cleaner body 2, and the like. An energization terminal (not shown) provided at one end of the extension pipe 5 is connected to the power supply terminal.

  By operating the hand operation switch SW of the operation tube 4, the electric blower 2 a can be operated / stopped / switched between strong, medium and weak, and the rotary cleaning body provided on the suction body 6 can be turned on and off.

  The extension pipe 5 includes an outer pipe 5a and an inner pipe 5b, and one end of the inner pipe 5b is inserted into the other end of the outer pipe 5a. Furthermore, it connects so that the ventilation path not shown provided in the inner side of the outer pipe | tube 5a and the inner pipe | tube 5b may connect, and it is comprised so that expansion-contraction is possible. FIG. 1 illustrates the shortest state in which the extension tube 5 is inserted into the outer tube 5a and the inner tube 5b.

  FIG. 2 is a top view of the mouthpiece 6.

  As shown in FIG. 2, the mouthpiece 6 includes a mouthpiece case 10 having a substantially T shape when viewed from above, and a mouthpiece joint 13 connected to the mouthpiece case 10.

  The mouthpiece case 10 includes a mouthpiece body 11 that is elongated in the left-right direction (width direction, the direction of the rotation axis of the first rotary cleaning body 20 to be described later) as viewed from above, and a mouthpiece at the center of the mouthpiece body 11 in the longitudinal direction. A connecting portion 12 connected to the joint 13 is provided. A flow path R (see FIG. 3) that connects the suction body 11 and the suction joint 13 is formed in the connecting portion 12.

  The mouthpiece main body 11 is provided with a bumper 11a from the front end surface to the left and right side surfaces. The bumper 11a is made of an elastic material such as rubber or elastomer. The bumper 11a keeps the airtightness in the mouthpiece main body 11 when used, and the mouthpiece main body 11 collides with furniture or the like when the vacuum cleaner 1 (see FIG. 1) is used. When it does, while preventing the said furniture etc. from being damaged, the role of the shock absorbing material which absorbs the impact to the suction inlet main body 11 is played.

  The suction joint 13 includes a first connecting pipe 14 that is rotatably connected to the connecting portion 12, and a second connecting pipe 15 that is rotatably connected to the first connecting pipe 14. Yes.

  Further, the second connection pipe 15 is provided with a power supply terminal 15a for supplying power. In addition, in the vacuum cleaner 1 (refer FIG. 1) of this embodiment example, it is comprised so that the electric power supplied to the suction body 6 may be supplied from the cleaner body 2 through the hose part 3, the operation tube 4, and the extension tube 5. ing.

  FIG. 3 is a bottom view of the mouthpiece.

  As shown in FIG. 3, the suction body 6 includes a first rotary cleaning body 20 and two second rotary cleaning bodies 30. In the suction case 10 (suction body 11), a suction chamber Q having an opening is formed on the bottom surface (the surface facing the cleaning surface).

  The 1st rotation cleaning body 20 is arrange | positioned along the longitudinal direction (left-right direction) of the suction inlet main body 11 at the front side of the connection part 12, and is rotatably supported by the suction inlet main body 11. FIG.

  The first rotary cleaning body 20 includes a plurality of types of brushes 20a, 20b, and 20c such as brush bodies and elastic bodies having different wire diameters, densities, and hardnesses, and the brushes 20a, 20b, and 20c are attached to the rotary shaft 21. In contrast, they are arranged in a spiral. In this embodiment, the case where three types of brushes 20a, 20b, and 20c are provided has been described as an example. However, the present invention is not limited to this and may be two or less types. There may be more than one type, and a configuration in which a blade member made of an elastic material such as rubber or elastomer is spirally arranged between the spirally arranged brushes may be added and changed as appropriate.

  The second rotary cleaning body 30 has a raised cloth 30b (see FIG. 4) having a smaller diameter than the diameter of the first rotary cleaning body 20, and is disposed behind the first rotary cleaning body 20, and also has a first rotary cleaning. It arrange | positions at the left-right direction of the rotating shaft direction (longitudinal direction of the suction inlet main body 11) of the body 20, respectively. In other words, the second rotary cleaning body 30 is provided on both sides of the flow path R. For example, one second rotary cleaning body 30 has a diameter that is approximately one half of the diameter of the first rotary cleaning body 20 and a length that is approximately one third of the axial length of the first rotary cleaning body 20. It is configured.

  Note that the suction case 10 is provided with a brush drive switch 16 and wheels 17. The brush drive switch 16 is a switch that detects whether or not the bottom surface (or wheel 17) of the mouthpiece 6 is in contact with the cleaning surface. The brush drive switch 16 includes a wheel 16a, and the wheel 16a is provided so as to always protrude from the bottom surface of the suction case 10 by a biasing means such as a spring. Then, when it is detected that the wheel 16a has popped out and is not in contact with the floor surface, power supply to the driving motor of the first rotary cleaning body 20 (not shown) is stopped. Further, when it is detected that the wheel 16a is pushed into contact with the floor surface, power is supplied to the driving motor of the first rotary cleaning body 20.

  The wheel 17 has a role of bringing the bottom surface of the mouthpiece 6 into close contact with the cleaning surface in response to the stress of front / rear operation or rotation operation operated by the operation tube 4 and reducing the operation resistance.

  4 is an enlarged view of the vicinity of the second rotary cleaning body 30 in the CC cross section of FIG.

  In the second rotary cleaning body 30, a cut pile-like raised cloth 30b formed of fine fibers is spirally wound around the outside of the pipe body 30e. The shaft 30a and the pipe body 30e are substantially concentric circles and have a gap, whereby the pipe body 30e and the raised cloth 30b are rotatably supported by the shaft 30a. As described above, the second rotary cleaning body 30 can be simplified by supporting the suction body 11 via the shaft 30a instead of driving the second rotary cleaning body 30 with an electric motor. The fine fibers of the raised cloth 30b are inclined in the circumferential direction with respect to the pipe body 30e. The height of the brushed fabric 30b is set so that the cross-sectional shape provided on the inner side of the mouthpiece body 11 is in contact with the projections 35a, 35b, and 35c having a substantially triangular shape. As a result, although the frictional resistance is small and rotates almost freely in the rotational direction W2, the frictional resistance is large and almost locked in the rotational direction W3.

  More specifically, the rotational driving force of the second rotary cleaning body 30 is a frictional force between the raised cloth 30b and the floor M, and the rotational braking force of the second rotary cleaning body 30 is the raised cloth 30b and the protrusion 35a. It is a frictional force with 35b and 35c. The fine fibers of the raised cloth 30b are inclined in the circumferential direction with respect to the pipe body 30e, and the direction of the inclination is from the front of the mouthpiece 6 to the rear at the position where the raised cloth 30b is in contact with the floor surface. For this reason, when the suction body 6 is moved forward, the frictional force between the raised cloth 30b and the floor surface M, that is, the rotational driving force of the second rotary cleaning body 30, is reduced, and the raised cloth 30b and the projections 35a, 35b, 35c Since the frictional force, that is, the rotational braking force of the second rotary cleaning body 30 is large and the rotational braking force is larger than the rotational driving force of the second rotational cleaning body 30, the rotation of the second rotational cleaning body 30 is restricted. On the contrary, when the suction body 6 is moved backward, the frictional force between the raised cloth 30b and the floor surface M, that is, the rotational driving force of the second rotary cleaning body 30 increases, and the friction between the raised cloth 30b and the protrusions 35a, 35b, and 35c. The force, that is, the rotational braking force of the second rotational cleaning body 30 is reduced, and the second rotational cleaning body 30 having a rotational braking force smaller than the rotational driving force of the second rotational cleaning body 30 rotates.

  Thereby, when the suction body 6 is retracted (when the suction body 6 is pulled rearward), the second rotary cleaning body 30 is rotated by contact resistance with the floor surface M, so that the rear of the suction body 11. Can be sucked into the suction chamber Q.

  Further, when the suction body 6 is moved forward (when the suction body 6 is pushed forward), the rotation of the second rotary cleaning body 30 is restricted, so that the first rotary cleaning body 20 causes the suction chamber Q to enter the suction chamber Q. It is possible to prevent the dust that has been scraped out from being swept out to the rear of the mouthpiece body 11.

  FIG. 5 is an exploded view of the suction joint 13.

  The suction joint 13 includes a first connecting pipe 14 that is rotatably connected to the connecting portion 12, and a second connecting pipe 15 that is rotatably connected to the first connecting pipe 14. Yes.

  The first connecting pipe 14 has a cylindrical shaft portion (first rotating shaft portion) 14 a having a partially opened flow passage connected to the connecting portion 12. The shaft portion 14 a is supported by a bearing portion 12 g (see FIG. 10) in which the axial direction is the longitudinal direction of the mouthpiece body 11 and both end portions of the shaft portion 14 a are formed in the connecting portion 12. Further, the first connecting pipe 14 is configured to be rotatable about the rotation center shaft 14b from a state substantially parallel to the floor surface (cleaning surface) to a state substantially vertical (in the vertical direction). Has been. That is, by rotating the first connecting pipe 14 with respect to the suction case 10 with the shaft portion 14a as a fulcrum, the extension pipe 5 is rotated between a substantially parallel state and a substantially perpendicular state to the floor surface. Can do.

  One end of the first connecting pipe 14 in the longitudinal direction is rotatably connected to the suction mouth body 11 around the rotation center shaft 14b. In other words, one end in the longitudinal direction of the first connecting pipe 14 is rotatably connected to the suction mouth body 11 via the shaft portion (first rotation shaft portion) 14a. The rotation axis direction of the shaft portion (first rotation shaft portion) 14 a (the axial direction of the rotation center shaft 14 b) is substantially parallel to the longitudinal direction of the mouthpiece body 11.

  Furthermore, the substantially circular sliding part 14c of the first connecting pipe 14 and the substantially circular sliding part 15e of the second connecting pipe 15 are in contact with each other, so that the first connecting pipe 14 is centered on the rotating shaft 15d. The airtightness is maintained regardless of the angle at which the second connecting pipe 15 rotates. The first connecting pipe 14 and the second connecting pipe 15 are rotatably connected by being sandwiched between the joint cover 15b and the joint presser 15c.

  As a result, the second connection pipe 15 can rotate in the longitudinal direction (clockwise and counterclockwise in FIG. 2) with respect to the first connection pipe 14.

  The other end of the first connecting pipe 14 in the longitudinal direction is rotatably connected to one end of the second connecting pipe 15 around the rotating shaft 15d. In other words, the other end in the longitudinal direction of the first connection pipe 14 is rotatably connected to one end of the second connection pipe 15 via the second rotation shaft portion. The axial direction of the rotation shaft 15d is substantially perpendicular to the rotation axis direction of the shaft portion 14a (the axial direction of the rotation center shaft 14b).

  Such a suction joint 13 can tilt the extension pipe 5 in the left-right direction (longitudinal direction), for example, in a state where the extension pipe 5 (see FIG. 1) is substantially perpendicular to the floor surface. As a result, when the operation tube 4 (handle 4a) is twisted clockwise or counterclockwise, the mouthpiece body 11 is rotated approximately 90 degrees clockwise or counterclockwise, and the longitudinal direction of the mouthpiece body 11 is moved. Cleaning in the direction becomes possible. Therefore, the suction body 6 can be moved along the wall and cleaned, or the suction body 6 can be inserted into a narrow gap between the furniture 40 and the furniture 41 as shown in FIG.

  At this time, in order to insert and clean the mouthpiece 6 in the narrowest possible gap, it is necessary to narrow the front-rear width D of the mouthpiece 6 including the mouthpiece joint 13. For this purpose, it is important to provide the rotation center shaft 14b of the first connecting pipe 14 as far as possible in the mouthpiece 6, but if it is simply placed in front, the front opening of the mouthpiece 6 as shown in FIG. The phenomenon may occur. This forward turning means that when the mouthpiece 6 is operated forward, the rear of the mouthpiece body is lifted around the front end of the mouthpiece body due to contact resistance with the floor surface M, and the bottom surface of the mouthpiece body 6 is inclined with respect to the floor surface. It is a phenomenon that becomes. In particular, it tends to occur when the floor surface is a carpet with long hairs.

  The previous turning phenomenon will be described in detail with reference to FIG. When the angle between the first connecting pipe 14 and the floor surface M is θ, the force F pushing the suction body 6 through the extension pipe 5 is perpendicular to the floor surface M and the component F1 (= Fcos θ) horizontal to the floor surface M. It can be decomposed into a component F2 (= Fsinθ). When the horizontal distance between the intersection 6a between the front end of the mouthpiece 6 and the floor surface and the rotation center shaft 14b of the first connecting pipe 14 is La and the vertical distance is H, the front turning moment is F1 × It is represented by H-F2 × La. That is, when the horizontal distance La is shortened, the front turning moment increases. For this reason, in order to suppress the occurrence of the previous turning phenomenon, it is necessary to make the vertical distance H shorter than the horizontal distance La. In other words, the vertical distance H between the rotation center shaft 14 b and the bottom surface of the mouthpiece 6 is shorter than the horizontal distance La between the rotation center shaft 14 b and the front surface of the mouthpiece 6.

  FIG. 9 is a cross-sectional view taken along line AA in FIG. 2 in a state where the second connecting pipe 15 is substantially horizontal with respect to the floor surface M.

  In FIG. 9, 13a is the center line of the flow path from the suction chamber Q to the second connecting pipe 15, 15f is the center line of the front-rear width on the side connected to the extension pipe 5 of the second connecting pipe 15, and Hc is the center line. 15f is the height from the floor M, 6b is the height of the suction body 6 including the suction joint 13, and 6c is the height of the suction case 10.

The center line 13a crosses the sliding surface 13b of the first connecting tube 14 and the second connecting tube 15 in the direction of the rotation shaft 15d and then approaches the sliding surface 13b again. In other words, the flow path in the second connecting pipe 15 has a first bent flow path 15g from the bottom to the top and a second bent flow path 15h from the top to the bottom. Can be lower than 6c. The flow path in the second connecting pipe 15 is a first bent flow path 15g from the bottom to the top in order from the suction body 6 side, and a second bent flow path 15h from the top to the bottom. The shaft 14b can be brought to a lower portion of the suction body 6, and thereby the vertical distance H of the rotation center shaft 14b can be lowered. Furthermore, the height 6b of the suction body 6 can be reduced by setting the tip of the first bent flow path 15g to the second bent flow path 15h from top to bottom. In other words, the second connecting pipe 15 In the side projection of the mouthpiece 6 in a state of being substantially horizontal with respect to the floor surface, the distance Hc between the center line 15f and the bottom surface of the mouthpiece 6 is shorter than the height 6c of the mouthpiece body 10, thereby The vertical height of the body 6 can be reduced. Further, the inner walls of the first bent flow path 15g and the second bent flow path 15h are smoothly connected to suppress the generation of noise due to the turbulence of the wind flowing through the flow path.

  Furthermore, when cleaning a low place such as under the bed, the second connecting pipe 15 is substantially horizontal with respect to the floor surface M, that is, the extension pipe 5 is approximately with respect to the floor surface M. The cleaning work is performed in a horizontal state. At this time, as described with reference to FIG. 8, the angle θ with the floor surface M of the extension pipe 5 becomes small, and thus the front turning moment becomes large. However, since the vertical distance H is shorter than the horizontal distance La, the forward bending phenomenon is not likely to occur even in the cleaning operation in a state where the extension pipe 5 is substantially horizontal with respect to the floor surface M. Easy to clean low places.

  FIG. 10 is a cross-sectional view taken along line BB in FIG. 2 in a state where the second connection pipe 15 is substantially perpendicular to the floor surface M.

  In FIG. 10, 15 f is a center line of the second connecting pipe 15 on the side connected to the extension pipe 5, La is a horizontal distance from the front end of the suction body 6 of the rotation center shaft 14 b, and Lb is the first rotary cleaning body 20. The horizontal distance from the front end of the suction body 6 of the rotation shaft 21 of the rotation axis, Lc is the horizontal distance from the front end of the suction body 6 of the center line 15f, Da is the horizontal distance between the center line La and the rotation center shaft 14b, and D is the suction mouth. It is the front-rear width of the mouthpiece 6 including the joint 13.

  At this time, since the center line 15 f is located inside D, which is the front-rear width of the suction body 6, the front-rear width of the suction joint 13 can be made shorter than the front-rear width D of the suction body 6.

  Further, the horizontal distance Lc is shorter than the horizontal distance La and longer than the horizontal distance Lb. In other words, in the side projection of the suction body in a state where the second connection pipe 15 is substantially perpendicular to the floor surface M, the center line 15f is the rotation shaft 21 of the first rotary cleaning body 20 and the first connection pipe. The front-rear width D can be shortened by being positioned between the fourteen rotation center shafts 14b.

  Furthermore, the front-rear width D can be further shortened by making the horizontal distance Da shorter than the distance Lc. Thereby, it becomes possible to insert the suction body 6 into a narrower gap such as between furniture and clean it.

  As described above, according to the present embodiment, according to the present invention, the front-rear width of the mouthpiece can be reduced, so that a narrow gap can be cleaned, and the forward turning phenomenon is less likely to occur during forward operation of the mouthpiece. Can do. Moreover, since the height of the mouthpiece can be lowered, there is an effect that a place having a low height can be cleaned.

  Moreover, although the case where the 1st rotation cleaning body and the electric motor which rotationally drives this were used was demonstrated in this embodiment, the 1st rotation cleaning body is used using the suction | attraction force which generate | occur | produces with the electric blower 2a of the cleaner body 2. The same effect can be obtained by driving.

  Further, in this embodiment, the floor moving type vacuum cleaner in which the vacuum cleaner main body and the operation tube are connected by the hose portion has been described, but there is a suction body on the bottom of the vertically long vacuum cleaner main body, and the upper part of the main body The same effect can be obtained also in a vertical vacuum cleaner that operates with an operation tube attached to.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Vacuum cleaner main body 2a Electric blower 2b Dust collection part 6 Suction body 10 Suction case 11 Suction body 20 First rotary cleaning body 30 Second rotary cleaning body 21 Rotating shaft 30b of the first rotary cleaning body Brushed cloth 35a, 35b, 35c Protrusion M Floor surface (cleaning surface)
Q Suction chamber 13 Suction joint 14 First connection pipe 15 Second connection pipe

Claims (5)

A rotary cleaning body having a rubbing member for rubbing the surface to be cleaned, a suction body provided on the bottom surface with a suction port for sucking dust, and a suction joint communicating with the suction body,
The inlet joint is composed of a first connecting pipe and a second connecting pipe,
One end of the first connecting pipe in the longitudinal direction is pivotally connected to the suction mouth body about the rotation center axis,
The other end in the longitudinal direction of the first connecting pipe is rotatably connected to one end of the second connecting pipe via a rotating shaft,
The axial direction of the rotation center axis is substantially parallel to the longitudinal direction of the mouthpiece body, and the axial direction of the rotation axis is substantially perpendicular to the axial direction of the rotation center axis,
The distance between the rotation center axis and the bottom surface of the mouthpiece body is shorter than the distance between the rotation center axis and the front surface of the mouthpiece body,
In the side projection of the suction body with the first connection pipe rotated so that the center line of the second connection pipe is substantially perpendicular to the bottom surface of the suction body, the center line of the second connection pipe Is located within the front-rear width of the mouthpiece body,
In the side projection of the suction body in a state where the first connection pipe is rotated so that the center line of the second connection pipe is substantially horizontal to the bottom surface of the suction body, the center line of the second connection pipe The mouthpiece of the vacuum cleaner, characterized in that is lower than the height of the mouthpiece body.
In the side projection of the suction body with the first connection pipe rotated so that the center line of the second connection pipe is substantially perpendicular to the bottom surface of the suction body, the center line of the second connection pipe The mouthpiece of the vacuum cleaner according to claim 1, wherein is located between a rotation center axis of the rotary cleaning body and the rotation center axis.
In the side projection of the suction body with the first connection pipe rotated so that the center line of the second connection pipe is substantially perpendicular to the bottom surface of the suction body, the center line of the second connection pipe The mouthpiece of the vacuum cleaner according to claim 1, wherein a distance between the center axis of the second connecting pipe and a front surface of the mouthpiece main body is shorter than a distance between the center axis of the second connecting pipe and the front surface of the mouthpiece body.
The vacuum cleaner according to claim 1, wherein the second rotating shaft portion has a substantially circular sliding portion.
  An electric blower that generates a suction force, a dust collecting part that collects dust, and the suction body are connected to an extension pipe, and the bottom surface of the suction body is moved against the movement of the hand handle transmitted through the extension pipe. 5. The suction joint according to claim 1, wherein the suction joint is operated so as to be in contact with a floor surface and communicates so as to guide an air flow including dust sucked from the suction body to the extension pipe. An electric vacuum cleaner given in any 1 paragraph.