JP2008043489A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of stabilizing the direction of a suction port body during the normal use of using the suction port body in the state that the width direction of the suction port body is longer than the front/back direction in the suction port body which can be turned so as to turn the width direction to the front/back direction. <P>SOLUTION: The suction port body 200 has: a suction port body body 300 whose length in the front/back direction is shorter than that in the width direction; a base part 400 connected on the suction port body main body 300 to be freely turned in a horizontal direction; first connection pipes 600 and 700 connected to the base part 400 to be freely turned in a vertical direction; and a second connection pipe 800 connected to a first connection pipe to be freely turned in the vertical direction and connected to an extension pipe at the rear end part. The suction port body body 300 includes a pair of engaging parts 391 positioned on both sides of the first connection pipe and engaged with the first connection pipe to regulate the turning of the base part 400, and the engaging parts 391 are configured to such a height that they are disengaged from the first connection pipe by turning the first connection pipe in an upper direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner including a suction body that sucks dust on a floor surface, an extension pipe and an extension hose connected to the suction body, and a vacuum cleaner body connected to the extension hose.

The mouthpiece used in the electric vacuum cleaner is configured to have a wider width direction than the front-rear direction, and is used in that state in normal cleaning. In such a mouthpiece, there is a mouthpiece that can be rotated so that the width direction of the mouthpiece is the front-rear direction so as to cope with the case where the width of the cleaning portion is narrow (see Patent Document 1). That is, there is one in which the mouthpiece can be rotated by 90 ° with respect to the extension pipe connected to the mouthpiece.
JP 2004-105275 A

  By rotating the mouthpiece, cleaning is possible even when the width of the cleaning portion is narrow. However, such a mouthpiece has a problem that the mouthpiece swings during normal cleaning due to this rotating mechanism, and the direction of the mouthpiece is difficult to stabilize.

  The present invention has been made to solve the above problems, and in a vacuum cleaner including a suction body that can be rotated so that the width direction thereof is the front-rear direction, the width direction of the suction body is greater than the front-rear direction. It is an object of the present invention to provide a vacuum cleaner that can stabilize the direction of the mouthpiece during normal use using the mouthpiece in a long state.

  According to the vacuum cleaner based on this invention, it is provided with a suction body that sucks in dust on the floor, an extension pipe and an extension hose connected to the suction body, and a vacuum cleaner body connected to the extension hose. ing. The mouthpiece is connected to the mouthpiece body whose length in the front-rear direction is shorter than the width direction, a base portion that is pivotally connected to the mouthpiece body in a horizontal direction, and a base portion that is pivotable in the vertical direction. And a second connecting pipe connected to the first connecting pipe so as to be rotatable in the vertical direction and having the rear end connected to the extension pipe. The mouthpiece body includes a pair of engaging portions that are positioned on both sides of the first connecting tube, engage with the first connecting tube, and restrict the rotation of the base portion, The first connection pipe is configured to have such a height that the engagement with the first connection pipe is released by rotating the first connection pipe upward, and the engagement between the engagement portion and the first connection pipe. By releasing the, the base can be turned, and the mouthpiece can be turned so that the width direction of the mouthpiece is the front-rear direction.

  The said vacuum cleaner WHEREIN: The said suction body may further have a temporary holder which temporarily hold | maintains rotation of the said base in a predetermined position.

  In the electric vacuum cleaner, the first connecting pipe is divided into a front end side first connecting pipe and a rear end side first connecting pipe, and the front end side first connecting pipe and the rear end side first connecting pipe are The first connecting pipes may be connected to each other so as to be rotatable about the direction in which the first connecting pipe extends.

  According to the vacuum cleaner of the present invention, the direction of the mouthpiece can be stabilized when the mouthpiece is used in a normal use state in which the width direction is longer than the front-rear direction.

  Hereinafter, the structure of the vacuum cleaner in each embodiment based on this invention is demonstrated, referring a figure.

  FIG. 1 is a perspective view showing the structure of the electric vacuum cleaner of the present embodiment. The vacuum cleaner of the present embodiment includes a suction body 200 that sucks in dust on the floor, an extension pipe 130 and an extension hose 120 connected to the suction body 200, and a vacuum cleaner body 110 connected to the extension hose 120. It has.

  The vacuum cleaner main body 110 includes a negative pressure generation source including a motor and a fan (not shown) that generates a negative pressure. The extension hose 120 and the extension pipe 130 connected to the main body 110 of the vacuum cleaner communicate with the negative pressure generation source. Dust on the floor surface can be sucked from the suction body 200 connected to the extension pipe 130 by the negative pressure generated by the negative pressure generating source.

  FIG. 2 is an exploded perspective view of the mouthpiece of the present embodiment, and FIG. 3 is a longitudinal sectional view of the mouthpiece of the present embodiment. As shown in FIG. 2, the mouthpiece of the present embodiment includes a mouthpiece body 300, a base 400, and a connecting pipe 500.

  The mouthpiece body 300 is configured in a rectangular shape in plan view whose width direction is longer than the front-rear direction. The mouthpiece body 300 has a lower cover 310 and an upper cover 390. A rotating brush 350 is rotatably attached to the lower surface side of the lower cover 310 by a cap 360.

  A motor 320 that drives the rotating brush 350 is attached to the inside of the lower cover 310. The rotating brush 350 and the motor 320 are connected by a driving belt (not shown). A bumper member 365 that reduces the impact of collision is attached to the front side of the lower cover 310.

  An opening surrounded by the circular rib 330 is provided at the center of the lower cover 310. The opening communicates with a dust suction port that is opened on the lower surface of the lower cover 310. An upper cover 390 is attached so as to close the upper surface of the lower cover 310. The upper cover 390 is provided with a pair of protruding engaging portions 391 that protrude upward.

  A base 400 composed of an upper member 401 and a lower member 410 is attached to the lower cover 310 so as to fit the circular rib 330 so as to be rotatable in the horizontal direction. The base 400 is attached to the lower cover 310 by a circular frame-shaped presser 380 that engages with the outer peripheral side thereof.

  A part of the base 400 is recessed in a rectangular shape, and the distal end portion of the connecting tube 500 is inserted into the recessed portion while ensuring airtightness. A shaft 620 that protrudes from both sides is provided at the tip of the connecting tube 500. The shaft 620 is sandwiched between the upper member 401 and the lower member 410 and is rotatably held. Thereby, the connecting pipe 500 is held by the base 400 so as to be rotatable in the vertical direction.

  A rib 610 is provided on the upper surface of the distal end portion of the connecting tube 500, and this contacts the inner surface of the upper member 401 of the base portion 400, so that the airtightness between the connecting tube 500 and the base portion 400 is maintained. The side surface of the distal end portion of the connecting tube 500 is in contact with the inner side surface of the recess of the base portion 400 without a gap. As shown in FIG. 3, a roller 355 is provided at the rear end portion of the lower cover 310.

  FIG. 4 is an exploded perspective view showing the structure of the connecting pipe of the present embodiment. The connecting pipe 500 is divided into a first connecting pipe that forms the front end side and a second connecting pipe 800 that forms the rear end side. Further, the first connection pipe is divided into a front end side first connection pipe 600 and a rear end side first connection pipe 700.

  The distal-end-side first connecting pipe 600 includes a main body and an upper surface constituent member 650 that is screwed to the upper surface. The distal end side of the main body of the distal end side first connecting pipe 600 is formed in a cylindrical shape having a rectangular cross section. A shaft 620 is provided on both side surfaces of the distal end portion of the main body of the distal end side first connecting pipe 600, and a rib 610 is provided on the upper surface of the distal end portion.

  Further, a cylindrical connecting portion 630 configured in a cylindrical shape is formed at the rear portion of the main body of the distal end side first connecting tube 600. The rear end side first connection pipe 700 is connected via the cylindrical connection part 630. Furthermore, a bearing portion 640 is provided on the lower surface side of the main body of the distal end side first connecting pipe 600. An auxiliary wheel 660 that rolls on the floor surface is rotatably attached to the bearing portion 640.

  The rear end side first connection pipe 700 includes a main body 720 and a lid member 740. An annular ring member 710 is provided on the distal end side of the main body 720. The distal end portion of the cylindrical coupling portion 630 of the distal end side first coupling tube 600 is inserted inside the ring member 710. Thereby, the cylindrical connection part 630 is rotatably connected along the inner peripheral surface of the ring member 710.

  A second connection pipe 800 is connected to the rear end portion of the rear end side first connection pipe 700 so as to be rotatable in the vertical direction. Specifically, the shaft 810 at the tip of the second connecting pipe 800 is sandwiched between the main body 720 and the lid member 740 so as to be freely rotatable. The main body 720 and the lid member 740 are fixed by screws that pass through the screw holes 730.

  The second connection pipe 800 includes a second connection pipe main body 820 and a second connection pipe lid member 850. A shaft 810 is provided on both side surfaces of the distal end portion of the second connecting pipe main body 820. As described above, the shaft 810 is rotatably held by the rear end side first connection pipe 700.

  The second connecting pipe lid member 850 is fixed to the second connecting pipe main body 820 with screws. An electrode connected to the extension tube 130 is held between the second connecting tube lid member 850 and the second connecting tube main body 820. The extension pipe 130 is connected to the rear end portion of the second connection pipe 800.

  FIG. 5 is a plan view showing the structure of the mouthpiece. As described above, the base 400 including the upper member 401 and the lower member 410 is configured to be rotatable in the horizontal direction. Although not shown in FIGS. 2 and 3, the mouthpiece body 300 is provided with a holder 315 configured to be protruded and retracted by being biased by a spring 316.

  The holder 315 is inserted into a recess 411 provided in the lower member 410 of the base 400 while being biased by a spring 316. Accordingly, the base 400 is temporarily held with respect to the mouthpiece body 300 so that the mouthpiece body 300 does not rotate unnecessarily. By strongly rotating the base portion 400, the holder 315 biased by the spring moves backward, and the temporary holding of the base portion 400 is released.

  The recesses 411 are provided at three locations in directions that form 90 degrees with each other. Accordingly, the direction in which the mouthpiece body 300 is normally used, the direction in which the mouthpiece body 300 is rotated clockwise from the direction to make the width direction the front-rear direction, and the direction in which the mouthpiece body 300 is rotated counterclockwise to make the width direction the front-back direction The mouthpiece body 300 can be temporarily held in these three directions.

  6 to 8 and 10 are perspective views showing the operation of the mouthpiece of the present embodiment, and FIG. 9 is a plan view of the same. A procedure for changing the mouthpiece body 300 from the normal use state to the direction in which the width direction is the front-rear direction will be described.

  FIG. 6 shows the mouthpiece 200 in a normal use state. In this state, the front end side first connection pipe 600 is rotated in the vertical direction with respect to the base 400, and the front end side first connection pipe 600 and the rear end side first connection pipe 700 are rotated in a mutually twisting direction. It is possible to rotate the second connecting pipe 800 in the vertical direction with respect to the rear end side first connecting pipe 700.

  On the other hand, the distal end side first connecting pipe 600 is engaged with engaging portions 391 located on both sides, and the rotation of the base portion 400 is restricted. Thereby, the suction body main body 300 and the front end side first connecting pipe 600 of the first connecting pipe are fixed in the direction in which they are normally used. As a result, the mouthpiece can be used stably in a normally used state.

  When the mouthpiece body 300 is rotated in the direction in which the width direction is the front-rear direction, first, as shown in FIGS. 7 and 8, the front end side first connecting pipe 600 and the rear end side first connecting pipe 700 are lifted. Thus, the extension tube 130 is lifted. When the distal end side first connecting pipe 600 is lifted, the engagement between the distal end side first connecting pipe 600 and the engaging portion 391 is released. In other words, the height of the engaging portion 391 is set such that the engagement is released by lifting the distal end side first connecting pipe 600.

  Thereby, the base 400 can be rotated. In this state, the extension pipe 130 is rotated around the mouthpiece body 300, or the mouthpiece body 300 is turned with respect to the extension pipe and the connecting pipe 500, whereby the mouthpiece body 300 is moved as shown in FIGS. The width direction as shown in FIG. Even in this state, the rotation of the base 400 is temporarily held by the above-described holder 315.

  As described above, in the mouthpiece 200 of the present embodiment, the mouthpiece body 300 can be rotated by 90 ° by a simple operation of lifting the extension pipe 130 and turning the extension pipe 130 or the mouthpiece body 300. it can. Further, in the normal use state, the distal end side first connecting pipe 600 is engaged with the engaging portions 391 located on both sides, so that the mouthpiece 200 can be used in a stable state.

  In the mouthpiece 200 of the present embodiment, the holder 315 shown in FIG. 5 is provided. Thereby, the mouthpiece body 300 and the base 400 are temporarily held in the normal use state and the direction in which the width direction is the front-rear direction. Even when the engagement between the distal end side first connecting pipe 600 and the engaging portion 391 is released, the mouthpiece body 300 is not temporarily rotated because the mouthpiece body 300 is temporarily held.

  FIG. 11 is a perspective view showing a state in which the mouthpiece body of the present embodiment is swung. Next, the operation of swinging the mouthpiece body 300 of the present embodiment will be described. This swinging operation is particularly effective in the work of cleaning a wide surface. Usually, when cleaning a wide surface, the mouthpiece 200 is slid on the floor surface so as to draw parallel stripes. When moving from the row being cleaned to the next row, a change of direction is required.

  In particular, when the mouthpiece body 300 is likely to stick because the floor surface is carpeted or the like, it is preferable that the direction can be easily changed. In the mouthpiece 200 of the present embodiment, the mouthpiece body 300 can be easily redirected as shown in FIG. 11 by twisting the extension tube 130 about its axis.

  The mechanism is as follows. When the extension tube 130 is rotated, the second connecting tube 800 is rotated accordingly. At this time, since the second connecting pipe 800 and the rear end side first connecting pipe 700 are pivotably connected in the vertical direction, the rear end side first connecting pipe 700 swings while its angle changes. Exercise.

  At the same time, the rear-end-side first connecting pipe 700 and the front-end-side first connecting pipe 600 are connected so as to be rotatable about the direction in which the first extension pipe extends as a rotation axis. . Since the rear end side first connecting pipe 700 and the front end side first connecting pipe 600 are oscillated while twisting each other, no rotational force is generated to lift the mouthpiece body 300 from the floor surface. As a result, the mouthpiece body 300 swings while remaining on the floor.

  In the present embodiment, the head body 300 can be swung without applying an excessive force in this manner. Therefore, the mouthpiece body 300 can be easily swung by the operation of twisting the extension tube 130.

  In the mouthpiece 200 of the present embodiment, in order to facilitate the swinging operation, the rear end side first connecting pipe 700 and the front end side first connecting pipe 600 are set with the direction in which the first connecting pipe extends as the rotation axis. Although connected so that rotation is possible, when swinging operation | movement is not required, you may comprise these integrally.

  In addition, the said embodiment disclosed this time is an illustration in all the points, Comprising: It does not become the basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the claims. Further, all modifications within the meaning and scope equivalent to the scope of the claims are included.

It is a perspective view which shows the structure of the vacuum cleaner in embodiment based on this invention. It is a disassembled perspective view of the mouthpiece in embodiment based on this invention. It is a longitudinal cross-sectional view of the mouthpiece in embodiment based on this invention. It is a disassembled perspective view which shows the structure of the connecting pipe in embodiment based on this invention. It is a top view which shows the structure of the suction mouth in embodiment based on this invention. It is a perspective view which shows operation | movement of the suction mouth in embodiment based on this invention. It is a perspective view which shows operation | movement of the suction mouth in embodiment based on this invention. It is a perspective view which shows operation | movement of the suction mouth in embodiment based on this invention. It is a top view which shows operation | movement of the mouthpiece in embodiment based on this invention. It is a perspective view which shows operation | movement of the suction mouth in embodiment based on this invention. It is a perspective view which shows the state which swings the suction body main body in embodiment based on this invention.

Explanation of symbols

  110 Vacuum cleaner body, 120 Extension hose, 130 Extension pipe, 200 Suction body, 300 Suction body, 310 Lower cover, 315 Holder, 316 Spring, 320 Motor, 330 Circular rib, 350 Rotating brush, 355 roller, 360 cap 365 Bumper member, 380 Presser, 390 Upper cover, 391 Engagement part, 400 Base part, 401 Upper member, 410 Lower member, 500 Connection pipe, 600 Tip side first connection pipe, 610 Rib, 620 shaft, 630 Cylindrical shape Connecting part, 640 Bearing part, 650 Upper surface component member, 660 Auxiliary wheel, 700 Rear end side first connecting pipe, 710 Ring member, 720 Main body, 730 Screw hole, 740 Lid member, 800 Second connecting pipe, 810 shaft, 820 2nd connection pipe main body, 850 2nd connection pipe lid member.

Claims (3)

A suction body for sucking dust on the floor, an extension pipe and an extension hose connected to the suction body, and a vacuum cleaner body connected to the extension hose,
The mouthpiece is
A mouthpiece body whose length in the front-rear direction is shorter than the width direction;
A base that is pivotably connected in a horizontal direction on the mouthpiece body;
A first connecting pipe connected to the base portion so as to be rotatable in the vertical direction;
A second connecting pipe that is connected to the first connecting pipe so as to be rotatable in the vertical direction, and the extension pipe is connected to the rear end of the second connecting pipe;
The mouthpiece body includes a pair of engaging portions that are positioned on both sides of the first connecting pipe, engage with the first connecting pipe, and restrict rotation of the base,
The engaging portion is configured to have such a height that the engagement with the first connecting tube is released by rotating the first connecting tube upward. An electric vacuum cleaner in which the base can be turned by releasing the engagement with one connecting pipe, and the mouthpiece can be turned so that the width direction of the mouthpiece is a front-rear direction.   The vacuum cleaner according to claim 1, wherein the suction body further includes a temporary holder that temporarily holds the rotation of the base at a predetermined position.   The first connection pipe is divided into a front end side first connection pipe and a rear end side first connection pipe. The front end side first connection pipe and the rear end side first connection pipe are divided by the first connection pipe. The vacuum cleaner according to claim 1, wherein the vacuum cleaners are connected to each other so as to be rotatable about an extending direction as a rotation axis.

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