JP5803388B2 - Vacuum cleaner suction tool and vacuum cleaner equipped with the suction tool - Google Patents

Description

  The present invention relates to a vacuum cleaner suction tool and a vacuum cleaner provided with the suction tool.

Patent Document 1 listed below discloses a conventional technique related to a vacuum cleaner suction tool.
In the suction tool described in Patent Document 1, the rotating brush is configured to be detachable from the case body so that tangled lint and hair can be easily removed from the rotating brush. One end of the rotating brush is connected to a bearing fixed to the case body. The other end of the rotating brush is connected to a shaft joint that is rotatably provided with respect to the case body. The shaft joint is a member for transmitting a driving force of a motor installed inside the case body to the rotating brush.

Japanese Patent No. 3007759

  When the rotary brush is configured to be detachable in the suction tool of the electric vacuum cleaner, it is necessary to provide a non-planted member such as the joint member at the end of the rotary brush.

  In the suction tool described in Patent Document 1, the rotary brush is attached and detached from a dust suction opening for sucking dust (garbage). For this reason, the opening for dust absorption is formed to have a large width, and the joint member is also arranged at the position for opening dust collection. That is, in the suction tool described in Patent Document 1, a region where no brush body is present occurs in the width direction of the dust suction opening. Even if the user moves the suction tool back and forth during cleaning, in the area where the brush body does not exist, the dust that has entered the hair such as carpets can be scraped out even though the opening is facing. There was a problem that I couldn't.

  In addition, in the suction tool described in Patent Document 1, when the width of the opening for sucking dust is narrowed in accordance with the flocked region of the rotating brush (the width of the brush body), the shaft joint for connecting the other end of the rotating brush However, it will be arrange | positioned at the back side of a case body. In such a case, when attaching the rotating brush, it becomes difficult to fit the other end of the rotating brush to the shaft joint, and the convenience is greatly impaired.

  The present invention has been made to solve the above-described problems. The purpose of the present invention is to allow the rotary brush to be easily attached to and detached from the case body and to be implanted in the direction of the opening width for dust absorption. The present invention is to provide a vacuum cleaner suction tool capable of reducing a non-existing area and a vacuum cleaner equipped with such a suction tool.

A suction tool for a vacuum cleaner according to the present invention is provided in a case body having an opening for dust absorption formed on a lower surface, a drive wheel rotatably provided at one end of the case body, and a drive wheel. The lower end portion includes a first brush body that protrudes downward from the opening for dust absorption, and a rotating brush that is connected to the drive wheel and has one end surface facing one side surface of the drive wheel. The rotary brush has a second brush body, one end surface is disposed in the recess , the lower end of the second brush body protrudes downward from the dust-absorbing opening, and one side of the drive wheel. To contact the driving wheel .

  The vacuum cleaner according to the present invention includes the suction tool.

  According to the present invention, in the suction tool of the vacuum cleaner, the rotating brush can be easily attached to and detached from the case body, and further, the region where the hair is not implanted can be reduced in the opening width direction for dust absorption.

It is a figure showing the whole vacuum cleaner composition. It is a top view which shows the suction tool of the vacuum cleaner in Embodiment 1 of this invention. It is a bottom view which shows the suction tool of the vacuum cleaner in Embodiment 1 of this invention. It is an enlarged view of the A section shown in FIG. It is sectional drawing which shows the principal part of the suction tool of the vacuum cleaner in Embodiment 1 of this invention. It is a perspective view which shows a rotating brush. It is an enlarged view of the C section shown in FIG. It is a perspective view which shows the principal part of the suction tool of the vacuum cleaner in Embodiment 1 of this invention. It is a perspective view which shows a coupling apparatus. It is a perspective view which shows the state just before connecting a rotating brush to a driving wheel. It is a perspective view which shows the state which the connection of a rotating brush and a driving wheel was completed.

  The present invention will be described in detail with reference to the accompanying drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals. The overlapping description is simplified or omitted as appropriate.

Embodiment 1 FIG.
FIG. 1 is a diagram showing an overall configuration of a vacuum cleaner. The vacuum cleaner includes, for example, a vacuum cleaner body 1, an operation body 2, and a suction tool 3.
The vacuum cleaner main body 1 is provided with an electric blower 4.
The operation body 2 is connected between the cleaner body 1 and the suction tool 3. The main part of the operating body 2 is constituted by, for example, the hose part 5, the grip part 6, and the telescopic pipe part 7.

  The suction tool 3 is a part that sucks dust (dust) together with air. The suction tool 3 is attached to the tip of the operating body 2 (the telescopic pipe portion 7). Hereinafter, a specific configuration and function of the suction tool 3 will be described with reference to FIGS.

  FIG. 2 is a plan view showing the suction tool of the electric vacuum cleaner according to Embodiment 1 of the present invention, and FIG. 3 is a bottom view thereof. FIG. 4 is an enlarged view of a portion A shown in FIG. FIG. 5 is a cross-sectional view showing a main part of the suction tool of the electric vacuum cleaner according to Embodiment 1 of the present invention. FIG. 5 shows a view taken along the line BB in FIG.

  The suction tool 3 includes, for example, a case body 8 (case assembly), a connection pipe 9, a wheel 10, a rotating brush 11, a motor (not shown), and a joint device 12.

  The case body 8 corresponds to the housing of the suction tool 3. The case body 8 is composed of a plurality of parts (for example, molded products). The case body 8 is provided with a dust suction opening (suction port 13) for sucking dust on the lower surface thereof. The suction port 13 has a rectangular shape having a length in the width direction of the case body 8 (suction tool 3). In the case body 8, a space for arranging the rotating brush 11 is formed in an upper part of the suction port 13. That is, the portion where this space is opened downward is the suction port 13.

  The connection pipe 9 is for connecting the suction tool 3 to the tip of the operation body 2 (of the telescopic pipe portion 7). The connection pipe 9 has a cylindrical shape, and one end is rotatably provided on the case body 8. The hollow of the connection pipe 9 communicates with the suction port 13 through the internal space of the case body 8 (space for arranging the rotating brush 11). The wheel 10 is rotatably provided on the case body 8.

  The rotating brush 11 is for scraping out dust that has entered a gap between a carpet and a tatami mat. The rotating brush 11 is rotationally driven by a motor provided in the case body 8. If the motor is installed on the side of the rotary brush 11, the width of the suction port 13 becomes smaller than the entire width of the suction tool 3. For this reason, in this suction tool 3, the motor shaft is arranged in parallel with the rotation shaft of the rotating brush 11, and the driving force of the motor is transmitted to the rotating brush 11 by the joint device 12. The joint device 12 is provided on the side of the rotating brush 11, that is, on one end of the case body 8.

FIG. 6 is a perspective view showing the rotating brush, and FIG. 7 is an enlarged view of a portion C shown in FIG.
The rotating brush 11 includes a support body 14, a brush body 15, a lid body 16, and an attachment portion 17.

  The support 14 is made of a rod-shaped member. A lid 16 is provided at one end of the support 14. A mounting portion 17 is provided at the other end of the support 14. The support 14 has a substantially cross-shaped cross section. In the cross section, the four projecting portions 14a constituting the cross are formed in a spiral shape along the axial direction of the support 14 (rotating brush 11).

  The brush body 15 is for scraping out dust that has entered the gap between the carpet and the tatami. The brush body 15 is provided so as to protrude from each protruding portion 14 a of the support body 14. The brush bodies 15 are arranged radially around the axis of the support body 14 and spirally along the axial direction of the support body 14.

  The lid body 16 is for fixing the brush body 15 to the support body 14. A groove is formed along the top of the protrusion 14a of the support 14. The base part of the brush body 15 is inserted into the groove from one end surface side of the support body 14. After the brush body 15 is inserted, the lid body 16 is fixed to one end surface of the support body 14, whereby the brush body 15 is attached to the support body 14.

  One end of the rotating brush 11 having the above configuration is connected to the joint device 12. The other end of the rotating brush 11 is attached to the other end of the case body 8. When each end portion of the rotating brush 11 is appropriately attached, the rotating brush 11 is rotatably supported by the case body 8. Further, when each end portion of the rotating brush 11 is appropriately attached, the brush body 15 is arranged such that the lower end portion protrudes downward from the suction port 13.

  The rotating brush 11 is configured to be detachable from the case body 8 so that lint and hair (string-like body) entangled during cleaning can be easily removed. Attachment and removal of the rotating brush 11 is performed from the side of the case body 8. FIG. 8 is a perspective view showing a main part of the suction tool of the electric vacuum cleaner according to Embodiment 1 of the present invention. FIG. 8 is a view showing a state when the rotating brush 11 is removed (or attached), and shows a view of the other end portion of the case body 8 as viewed obliquely from above.

  A through hole 8 a is formed at the other end of the case body 8. One side of the through hole 8 a is opened in the internal space of the case body 8 (space for arranging the rotating brush 11), and the other side is opened to the side of the case body 8. When removing the rotating brush 11, the user moves the rotating brush 11 in the direction of the rotation axis by holding the mounting portion 17 of the rotating brush 11 so that the rotating brush 11 passes through the through hole 8 a, and pulls the rotating brush 11 out of the case body 8. .

  Reference numeral 18 denotes a removal claw for removing lint and hair entangled with the rotating brush 11. The removal claw 18 is provided at the other end of the case body 8 so as to protrude inside the through hole 8a. The removal claw 18 is disposed between the protrusions 14 a of the support 14. When the rotating brush 11 is pulled out from the case body 8, when the rotating brush 11 passes through the through hole 8a, lint and hair are caught by the removal claw 18 and removed from the rotating brush 11.

  When the rotary brush 11 passes through the through hole 8a, the brush body 15 contacts the peripheral wall forming the through hole 8a. For this reason, if the length of the hair of the brush body 15 is long, a large load is applied when the rotary brush 11 is pulled out from the case body 8, and the work becomes difficult. For this reason, the length of the hair of the brush body 15 of the rotating brush 11 is set to be short.

The joint device 12 is for transmitting the driving force of the motor to the rotating brush 11. FIG. 9 is a perspective view showing the joint device. The driving source of the rotating brush 11 is not limited to the motor provided in the suction tool 3. For example, the rotating brush 11 may be driven using a turbine that is rotationally driven by an airflow generated by the suction force of the electric blower 4.
The joint device 12 includes, for example, a shaft 19, a driven wheel 20, a belt 21, holders 22 and 24, bearings 23 and 25, a drive wheel 26, and a brush body 27.

The shaft 19 is arranged in the longitudinal direction of the suction port 13. The shaft 19 is disposed in parallel to the motor shaft (not shown).
The driven wheel 20 is fixed to one end of the shaft 19. A belt 21 is wound around the outer peripheral surface of the driven wheel 20. The belt 21 is also wound around the shaft of the motor. For this reason, the driven wheel 20 (shaft 19) rotates in conjunction with the motor shaft (rotation).

  The holder 22 is provided on the shaft 19 via a bearing 23. The holder 22 is disposed on one side of the driven wheel 20. The holder 24 is provided on the shaft 19 via a bearing 25. The holder 24 is disposed on the other side of the driven wheel 20. At the end of one end of the case body 8, an inner wall 8d is provided on the inner side so that the inner wall 8c is close to the side wall 8b and faces the inner wall 8c. The holder 22 is attached to the inner wall 8c. The holder 24 is attached to the inner wall 8d. Thus, the driven wheel 20 (and the belt 21) is disposed in a space sandwiched between the inner walls 8c and 8d and is rotatably supported with respect to the case body 8. The lower end portion of the inner wall 8d forms an edge on one side of the suction port 13.

  The drive wheel 26 is for assisting the travel of the suction tool 3 during cleaning. That is, since the driving wheel 26 is driven by a motor and moves on a carpet or the like, the user can easily operate the suction tool 3.

  If the brush body 15 of the rotating brush 11 is strong or has a long bristle, a sufficient driving force (a force for running the suction tool 3 at the time of cleaning) can be obtained by rotating the rotating brush 11. it can. However, in this suction tool 3, since it becomes difficult to pull out the rotating brush 11 from the case body 8, the brush body 15 having a short hair length is employed. If the length of the hair of the brush body 15 is short, there is a possibility that sufficient driving force (force for running the suction tool 3 during cleaning) cannot be obtained during cleaning. The drive wheel 26 is provided in consideration of such circumstances.

  The drive wheel 26 is fixed to the shaft 19. For this reason, the drive wheel 26 is rotatably supported by the case body 8. The driving wheel 26 rotates in conjunction with the shaft (rotation) of the motor via the shaft 19, the driven wheel 20, and the belt 21. The drive wheel 26 is disposed on the other side of the holder 24. As described above, the lower end portion of the inner wall 8 d to which the holder 24 is fixed forms the edge portion of the suction port 13. For this reason, the drive wheel 26 is disposed at an opening position for dust absorption (above the suction port 13).

  The drive wheel 26 is provided with a brush body 27 so as to protrude from the outer peripheral surface. The brush body 27 is disposed such that the lower end portion protrudes downward from the suction port 13. When the brush body 27 comes into contact with the carpet or the like, a driving force for running the suction tool 3 can be generated. At this time, like the brush body 15, the brush body 27 scrapes off dust that has entered the gaps between the carpet and the tatami mat.

  The rotating brush 11 is connected to the driving wheel 26 with one end face facing a side surface (hereinafter referred to as “one side surface” of the driving wheel 26) facing the through hole 8 a side of the driving wheel 26. When the rotating brush 11 is properly connected to the driving wheel 26, the rotating shaft of the rotating brush 11 and the rotating shaft of the driving wheel 26 coincide.

  The rotating brush 11 is detachably connected to the drive wheel 26. Therefore, joint means for detachably connecting the rotary brush 11 to the drive wheel 26 is provided on the one end surface of the rotary brush 11 and the one side surface of the drive wheel 26. The joint means functions to connect and release the rotary brush 11 and the drive wheel 26 by moving the rotary brush 11 in the direction of the rotation axis, and rotates the rotary brush 11 in conjunction with the drive wheel 26 when connected. It has a function to let you.

  For example, the joint means includes a fitting hole 11 a formed on one end surface of the rotating brush 11 and a protrusion 26 a provided on one side surface of the drive wheel 26. The fitting hole 11 a is formed by a through-hole formed in the side surface of the lid body 16 and a hollow hole formed in the end surface of the support body 14. The axial direction of the fitting hole 11 a coincides with the rotational axis direction of the rotating brush 11.

  The protrusion 26 a is a portion that protrudes from one side surface of the drive wheel 26 in the rotation axis direction. The protrusion 26 a is inserted into the fitting hole 11 a of the rotating brush 11 from the axial direction and appropriately fitted, whereby the rotating brush 11 is connected to the drive wheel 26. FIG. 10 is a perspective view showing a state immediately before the rotary brush is connected to the drive wheel, and FIG. 11 is a perspective view showing a state where the connection between the rotary brush and the drive wheel is completed.

  Note that one end surface of the rotating brush 11 in which the fitting hole 11 a is formed is formed by a side surface of the lid body 16. The lid body 16 is a member for fixing the brush body 15 to the support body 14. For this reason, the cover body 16 is not planted. Therefore, if the rotary brush 11 is simply connected to the drive wheel 26, a region where no hair is implanted is generated between the rotary brush 11 and the drive wheel 26.

  On one side of the drive wheel 26, a recess 26b for accommodating one end of the rotating brush 11 is formed. The protrusion 26a is formed so as to protrude from the recess 26b (the bottom surface of the recess 26b). The recess 26b has a circular shape when viewed from the axial direction of the drive wheel 26. The diameter is larger than the outer diameter of the lid body 16. For this reason, when the rotating brush 11 is connected to the drive wheel 26, one end surface of the rotating brush 11 (side surface of the lid body 16) is disposed in the recess 26b.

  Further, the recess 26b has a depth about the thickness of the cover 16 (the width of the rotating brush 11 in the direction of the rotation axis) or more in the direction of the rotation axis of the drive wheel 26. For this reason, when the rotating brush 11 is connected to the drive wheel 26, the lid body 16 is disposed at a position where a part (tip portion) or all of the lid body 16 overlaps the brush body 27 in a direction orthogonal to the rotation axis.

  Further, when the rotating brush 11 is connected to the driving wheel 26, the brush body 15 of the rotating brush 11 contacts the driving wheel 26 from one side. For this reason, the brush body 27 and the brush body 15 can be arrange | positioned continuously without a clearance gap in a rotating shaft direction, and the area | region which is not flocked in the width direction of the suction inlet 13 can be reduced. The brush body 27 and the brush body 15 rotate integrally by driving a motor. For this reason, sufficient driving force for running the suction tool 3 at the time of cleaning can be ensured.

  In the suction tool 3 having the above-described configuration, one side surface of the drive wheel 26 on which the protruding portion 26a is formed is disposed closer to the center than the opening position for dust absorption, that is, the inner wall 8d forming the edge of the suction port 13. The For this reason, when connecting the rotary brush 11 to the drive wheel 26, the user can easily visually check the fitting state between the protrusion 26a and the fitting hole 11a through the suction port 13, and the rotary brush 11 can be easily attached to the case body 8.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner body 2 Operation body 3 Suction tool 4 Electric blower 5 Hose part 6 Grip part 7 Telescopic pipe part 8 Case body 8a Through hole 8b Side wall 8c, 8d Inner wall 9 Connection pipe 10 Wheel 11 Rotating brush 11a Fitting hole 12 Joint device DESCRIPTION OF SYMBOLS 13 Suction port 14 Support body 14a Protrusion part 15, 27 Brush body 16 Cover body 17 Attachment part 18 Removal claw 19 Shaft 20 Drive wheel 21 Belt 22, 24 Holder 23, 25 Bearing 26 Drive wheel 26a Protrusion part 26b Recessed part

Claims (7)

A case body in which an opening for dust absorption is formed on the lower surface;
A driving wheel rotatably provided at one end of the case body;
A first brush body provided on the drive wheel and having a lower end protruding downward from the opening for dust absorption;
A rotating brush connected to the drive wheel and having one end face facing one side of the drive wheel;
With
The drive wheel has a recess formed on the one side surface,
The rotating brush includes a second brush body, the one end surface is disposed in the recess ,
The suction tool of the vacuum cleaner , wherein a lower end portion of the second brush body protrudes downward from the dust suction opening and contacts the driving wheel from the one side surface of the driving wheel . The rotating brush is
And the support of the rod-like,
A lid provided at one end of the support for fixing the second brush body to the support;
With
The second brush body is provided on the support;
2. The vacuum cleaner suction tool according to claim 1, wherein a side surface of the lid that forms the one end surface of the rotating brush is disposed in the recess. The rotating brush is detachably connected to the driving wheel,
The electricity according to claim 1 or 2 , wherein joint means for rotating the rotating brush in conjunction with the driving wheel is provided on the one end surface of the rotating brush and the one side surface of the driving wheel. Vacuum cleaner suction tool. Provided at the other end of the case body, when the rotary brush is moved in the direction of the rotation axis and pulled out of the case body, the string-like body entangled with the rotary brush is removed from the rotary brush. To remove nails,
The vacuum cleaner suction tool according to claim 3 . At the other end of the case body, a through hole is formed through which the rotating brush passes when being pulled out of the case body,
The vacuum cleaner suction tool according to claim 4 , wherein the removal claw is disposed so as to protrude inside the through hole. A motor provided in the case body and driving the drive wheel;
The vacuum cleaner suction tool according to any one of claims 1 to 5 , further comprising: The vacuum cleaner provided with the suction tool as described in any one of Claims 1-6 .

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