JP2008188375A - Vacuum cleaner suction tool and vacuum cleaner using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction head for vacuum cleaner which is small in size, inexpensive, and excellent in suction performance with reduced pressure loss. <P>SOLUTION: The suction head has a brush chamber 14 for rotatably housing a first rotary brush 13 and comprises a first suction head 10 having a first suction port 23 at the bottom face and a second suction head 11 having a second suction port 29 at the bottom face and detachably mounted on the first suction head 10. When the second suction head 11 is mounted on the first suction head 10, at least the front part of the second suction port 29 is positioned on the upper side of the first rotary brush 13 and communicates with the brush chamber 14. Because the second suction port 29 is positioned to the front part compared to conventional ones to be near the first suction port 23 when the second suction head 11 is mounted on the first suction head 10, the air pressure loss therebetween is reduced to improve dust suction performance and a whole of the depth dimension of the suction head 3 for vacuum cleaner is made smaller to improve usability. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner suction tool including a first suction tool, a second suction tool detachably attached to the first suction tool, and a vacuum cleaner using the same.

  As conventional vacuum cleaner suction tools of this type, there are those shown in FIGS. (For example, refer to Patent Document 1). FIG. 9 is a perspective view of a conventional vacuum cleaner suction tool described in Patent Document 1, and FIG. 10 is a cross-sectional view of the vacuum cleaner suction tool.

  9 and 10, a conventional vacuum cleaner suction tool 101 is a first suction tool 102 for sucking dust on the floor, and is smaller than the first suction tool 102 and detachable from the first suction tool 102. It is comprised from the 2nd suction tool 103 with which it is mounted | worn. A first suction port 104 for sucking dust on the floor surface is provided on the front side of the bottom surface of the first suction tool 102, and an upward opening 105 is provided behind the first suction tool 102 and the second suction port 102. A mounting portion 106 to which the suction tool 103 is detachably mounted is provided, and the first suction port 104 and the opening portion 105 communicate with each other. Reference numeral 107 denotes an operation lever that holds the second suction tool 103 attached to the attachment portion 106, and when the lever is pushed downward with a foot or the like, the holding is released, and the second suction tool 103 is moved to the first suction tool 102. It can be removed from the mounting portion 106.

  The second suction tool 103 is used when cleaning a narrow space or furniture. The second suction tool 103 has a second suction port 108 on the bottom surface, is attached to the upper rear portion so as to be tiltable, and is a vacuum cleaner (not shown). When the second suction device 103 is mounted on the mounting portion 106 of the first suction device 102, the first suction port 104 and the second suction port are connected. The mouth 108 communicates with the mouth 108.

  The operation and action of the conventional vacuum cleaner suction device 101 configured as described above are as follows.

  When the second suction tool 103 connected to the extension pipe 109 is mounted on the mounting portion 106 provided behind the first suction tool 102 and the vacuum cleaner is operated, an electric blower (not shown) built in the vacuum cleaner is operated. ) Acts on the first suction port 104 located on the front side of the bottom surface of the first suction tool 102, and dust on the floor surface flows into the first suction port 104 together with the air. It reaches the dust collection chamber (not shown) built in the vacuum cleaner through the second suction port 108 and the extension pipe 109 of the second suction tool 103 mounted on the mounting portion 106 located in the upper rear part of the tool 102. Then, dust is captured.

  Next, when cleaning a narrow space such as furniture or stairs, when the operation lever 107 is stepped on with the foot while the second suction tool 103 is connected to the extension pipe 109, the second suction tool 103 of the operation lever 107 is moved. Since the holding is released, when the extension pipe 109 is lifted, the second suction tool 103 is easily detached from the mounting portion 106, and can immediately clean a narrow place or furniture.

  Moreover, there existed what was shown by FIGS. 11-13 as an example of the suction tool for other conventional vacuum cleaners (for example, refer patent document 2).

  FIG. 11 is a perspective view of another conventional vacuum cleaner suction tool, FIG. 12 is a sectional view of the vacuum cleaner suction tool, and FIG. 13 is a second suction tool of the vacuum cleaner suction tool. It is sectional drawing.

  11 to 13, a conventional vacuum cleaner suction tool 115 includes a first suction tool 116 for sucking dust on the floor, and is smaller than the first suction tool 116 and detachable from the first suction tool 116. It is comprised from the 2nd suction tool 117 with which it is mounted | worn.

  The front side of the first suction tool 116 is provided with a brush chamber 131 having a first suction port 118 on the bottom surface and rotatably storing a rotary brush 130 that scoops up dust on the floor surface. A substantially concave mounting portion 119 to which the first suction tool 116 is detachably mounted is provided substantially rearward of the center. An opening 120 that communicates with the brush chamber 131 is provided at the front of the mounting portion 119. The rotating brush 130 is rotationally driven by an electric motor 134.

  Reference numeral 121 denotes an operation lever for holding the second suction tool 117 attached to the attachment part 119, and the holding is released by pushing the lever downward with a foot or the like, and the second suction tool 117 is moved to the first suction tool 116. It can be removed from the mounting portion 119.

  The second suction tool 117 is smaller than the first suction tool 116 and is used when cleaning a narrow place or furniture. The second suction tool 117 has a second suction port 122 on the bottom surface and a second suction port on the front end. A third suction port 124 having an opening area smaller than that of the port 122 and partially opened and closed by the lid 123 is provided, and the central rear portion communicates with the second and third suction ports 122 and 124 and extends. A connection pipe 125 connected to (not shown) is provided to be tiltable. When the second suction tool 117 is mounted on the mounting portion 119 of the first suction tool 116, the lid 123 is pushed by the projection 126 provided on the first suction tool 116 side, and the third suction port 124 is opened. While communicating with the opening 120, the second suction port 122 on the bottom surface of the second suction tool 117 is blocked by the bottom surface of the mounting portion 119 of the first suction tool 116.

  The connection pipe 125 of the second suction tool 117 has a pair of power receiving pins 132 that are electrically connected to lead wires (not shown) arranged in the extension pipe when the extension pipe is connected to the connection pipe 125. A pair of power feeding portions 133 that are electrically connected to the power receiving pins 132 are arranged below the front portion of the second suction tool 117. On the other hand, the mounting part 119 of the first suction tool 116 is in contact with the power feeding part 133 when the second suction tool 117 is mounted on the mounting part 119 and is electrically connected to the motor 134. 135 is provided.

  The operation and action of the conventional vacuum cleaner suction tool 115 configured as described above are as follows.

  When the second suction tool 117 connected to the extension pipe is mounted on the mounting portion 119 provided at the rear portion of the first suction tool 116, the lid 123 is pushed by the protrusion 126, and the third suction tool 117 of the second suction tool 117 is pressed. The suction port 124 is fully opened to communicate with the first suction port 118, and the power receiving unit 135 and the power feeding unit 133 are in contact with each other.

  When the vacuum cleaner is operated, the power from the lead wire provided on the extension pipe is supplied to the electric motor 134 through the power receiving pin 132, the power feeding unit 133, and the power receiving unit 135, and the rotating brush 130 rotates. A suction force by a built-in electric blower (not shown) acts on the first suction port 118 located on the front side of the bottom surface of the first suction tool 116, and the dust on the floor surface scraped up by the rotary brush 130 is collected. Along with the air, it flows from the first suction port 118 and is built into the vacuum cleaner through the opening 120, the third suction port 124 located at the front end of the second suction tool 117, the connection pipe 125, and the extension pipe. A dust collection chamber (not shown) is reached where dust is captured.

  Next, when cleaning a narrow place such as furniture or stairs, when the operation lever 121 is stepped on with the second suction tool 117 connected to the extension pipe, the second suction tool 117 is held by the operation lever 121. Therefore, when the extension pipe is lifted, the second suction tool 117 is easily detached from the mounting portion 119, and the lid 123 closes leaving a part of the third suction port 124, and the second suction tool At the mouth 122, cleaning can begin immediately. Further, when the second suction tool 117 is removed from the mounting part 119, the power feeding part 133 and the power receiving part 135 are separated from each other, and the power supply to the motor 134 is interrupted. Therefore, the first suction tool 116 is left on the floor surface. Even so, the rotating brush 130 does not rotate and is safe.

  It should be noted that the lid 123 closes with a part of the third suction port 124 closed, even if the second suction port 122 is completely blocked for some reason. This is for sucking outside air and preventing the electric blower from overheating.

With the above configuration, the first suction tool 116 and the second suction tool 117 can be switched without bending their waists, and can be easily switched from cleaning a normal floor surface to cleaning a narrow place such as a staircase. Has convenience.
JP 2001-314358 A JP 2004-283216 A

  However, in the configuration of the conventional vacuum cleaner suction tool described in Patent Document 1, when the second suction tool 103 is attached to the first suction tool 102, the first suction port of the first suction tool 102 is used. 104 is located on the front side, the second suction port 108 of the second suction tool 103 is located on the rear side, and the first suction port 104 and the second suction port 108 are displaced in the front-rear direction. There was a problem that the wind did not flow smoothly and the pressure loss increased and the dust suction performance was reduced, and bulky dust such as paper scraps were caught on the way. Further, since the first suction tool 102 is not provided with a rotating brush or the like for scraping up dust, there is a problem that dust removal performance is poor particularly when the cleaning surface is a carpet or the like.

  Moreover, since the 1st inlet 104 and the 2nd inlet 108 have shifted | deviated in the front-back direction, the dimension of the suction tool 101 for vacuum cleaners becomes large, and the suction tool 101 for vacuum cleaners is large sized. There were also issues such as

  Moreover, in the structure of the conventional vacuum cleaner suction tool described in Patent Document 2, the first suction port 118 is provided with the rotating brush 130 that is driven to rotate by the electric motor 134. Dust removal performance from the surface to be cleaned is good, but since the motor 134 is energized, electrical parts such as the power feeding unit 133 and the power receiving unit 135 are required, the structure becomes complicated, and the number of parts increases. There existed a subject that the 1st suction tool 116 was expensive, and also became heavy.

  Further, since the air containing dust sucked from the first suction port 118 has a small opening area and is sucked through the third suction port 124 provided at the front end, the vacuum cleaner As the suction tool 115 becomes larger in depth, the suction passage becomes longer, the pressure loss increases, the cleaning effect decreases, and the function of opening the lid 123 is also required, which complicates the structure and reduces the manufacturing cost. There were issues such as rising. In addition, since suction is performed through the third suction port 124 having a small opening area, there is a problem that large dust such as paper waste is caught in the suction passage.

  An object of the present invention is to solve the above-described conventional problems, and to provide a vacuum cleaner suction tool and a vacuum cleaner that are small, inexpensive, excellent in dust removal performance, small in pressure loss, and excellent in suction performance. And

  In order to solve the above-described conventional problems, a vacuum cleaner suction tool according to the present invention has a brush chamber that rotatably houses a first rotary brush, and a first suction tool that has a first suction port on a bottom surface. And a second suction tool that has a second suction port on the bottom surface and is detachably attached to the first suction tool, and when the second suction tool is attached to the first suction tool, And at least a front portion of the second suction port is located above the first rotating brush and communicates with the brush chamber. When the second suction tool is attached to the first suction tool, the second suction port Since the mouth is located on the front side compared to the conventional one and is closer to the first suction port, the air pressure loss therebetween is reduced, the dust suction performance is improved, and the overall depth of the vacuum cleaner suction tool is reduced. Smaller and easier to use. Moreover, dust can be efficiently scraped up from the cleaning surface by providing the first rotating brush on the first suction tool.

  Moreover, the vacuum cleaner of this invention is equipped with the vacuum cleaner main body which incorporates an electric blower, and the suction tool for vacuum cleaners of any one of Claims 1-6. An excellent vacuum cleaner can be provided.

  The vacuum cleaner suction tool and vacuum cleaner of the present invention are small and inexpensive, have a small pressure loss, and are excellent in dust suction performance.

  The first invention has a brush chamber that rotatably houses a first rotating brush, a first suction tool having a first suction port on the bottom surface, and a second suction port on the bottom surface, and the first suction tool. The second suction tool is detachably attached to the suction tool, and when the second suction tool is attached to the first suction tool, at least the front portion of the second suction port is the first rotary brush. It is located above and communicates with the brush chamber. When the second suction tool is attached to the first suction tool, the second suction port is located on the front side compared to the conventional one, Since it is close to one suction port, the air pressure loss during that time is reduced, dust suction performance is improved, and the overall depth of the vacuum cleaner suction tool is reduced, improving usability. Moreover, dust can be efficiently scraped up from the cleaning surface by providing the first rotating brush on the first suction tool.

  In particular, the second invention provides a substantially semi-circular cutout on both side walls of the second suction tool of the first invention, and when the second suction tool is attached to the first suction tool, A rotating brush is positioned in the notch, and when the second suction tool is mounted on the first suction tool, the first rotating brush is positioned in the notch, so that the first suction tool Can hold | maintain a 2nd suction tool in a lower position, can reduce the height of the vacuum cleaner suction tool whole, and can improve usability.

  The third invention is provided with a closing means for closing the notch when the second suction tool of the second invention is removed from the first suction tool, and the second suction tool is used as the first suction tool. Since the outside air does not enter from the cut-out portion by the closing means when the second suction tool is cleaned by removing the second suction tool, the dust suction performance from the second suction port does not deteriorate.

  In the fourth invention, in particular, the second suction tool according to any one of the first to third inventions is provided with driving means for rotationally driving the first rotating brush, and the driving means is used for electric parts such as motors. In this case, if it is intended to be provided in the first suction tool, electrical parts such as contacts and terminals for electrically connecting the first suction tool and the second suction tool are required. By providing in 2 suction tools, such an electrical component becomes unnecessary and the suction tool for vacuum cleaners can be comprised at low cost.

  According to a fifth aspect of the invention, in particular, the second suction tool of the fourth invention is provided with a blocking means for cutting off the energization to the driving means during operation, and the first suction tool is provided on the first suction tool from the cleaning surface. When the second suction tool is mounted on the first suction tool to perform a normal cleaning operation, the first suction tool is cleaned on the cleaning surface. When it is away from, it is safe because the shut-off means operates and the drive means is cut off. In addition, since it is not necessary to provide the first suction tool side with a blocking means that is one of the electrical parts, electrical parts such as contacts and terminals for electrically connecting the first suction tool and the second suction tool become unnecessary. Thus, the configuration of the first and second suction tools is simplified and can be formed at low cost.

  In the sixth invention, in particular, the second suction brush of the fourth or fifth invention is provided with a second rotating brush that is rotationally driven by a driving means, and the first rotating brush is directly rotationally driven by the second rotating brush. By doing so, since the transmission structure of the rotational power from the driving means to the first rotating brush is simplified, it is inexpensive and easy to assemble.

  7th invention is equipped with the vacuum cleaner main body which incorporates an electric blower, and the suction tool for vacuum cleaners of any one of Claims 1-6, and is excellent in suction performance and usability. A vacuum cleaner can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is an overall perspective view of a vacuum cleaner to which a vacuum cleaner suction tool according to the first embodiment of the present invention is connected, and FIG. 2 is a first suction tool and a second suction tool of the vacuum cleaner suction tool. FIG. 3A is a sectional view of the second suction tool, FIG. 3B is a rear view of the second suction tool, and FIG. 4 is for the electric vacuum cleaner. It is sectional drawing (the state which mounted | wore the 1st suction tool with the 2nd suction tool) of the suction tool.

  1 to 4, the vacuum cleaner 1 to which the vacuum cleaner suction tool according to the present embodiment is connected includes a vacuum cleaner body 7 containing an electric blower (not shown) and one end via a hose joint 5. A hose 6 connected to the front part of the cleaner body 7 and an extension pipe 2 detachably connected to a hand handle 4 provided at the other end of the hose 6 are provided. The vacuum cleaner suction tool 3 (hereinafter referred to as “suction tool 3”) in the form is connected.

  The suction tool 3 is smaller than the first suction tool 10 mainly used for cleaning a large floor and the first suction tool 10, and is detachably attached to the storage recess 26 provided in the first suction tool 10. The second suction tool 11 is used for cleaning furniture and narrow places.

  The first suction tool 10 has a wide suction part 24 with a bumper 17 attached to the front and both sides to prevent the furniture (not shown) from being damaged, and a rear part from the central part. The projecting portion 25 has a protruding shape, and the planar shape is substantially T-shaped. The storage recess 26 is formed from the front portion of the suction portion 24 to the running portion 25.

  The first suction tool 10 is connected to the operation lever 19 that is provided on both inner walls of the storage recess 26 and that can be stepped in and out, so that the second suction tool 11 mounted in the storage recess 26 can be removed. The fixed claw 20 and the rotatable wheel 21 for traveling are provided.

  The fixing claw 20 is normally urged by an urging means (not shown) so as to protrude toward the center of the storage recess 26, and the operation lever 19 is pushed downward against the urging force of the urging means. The fixed claw 20 is immersed in the main body 10a of the first suction tool 10.

  The suction part 24 of the first suction tool 10 has a horizontally long first suction port 23 on the bottom surface, and a brush chamber 14 that houses the first rotary brush 13 rotatably so as to face the first suction port 23. The communication port 15 is arranged in a portion of the bottom surface of the storage recess 26 located above the first rotary brush 13.

  In the portion of the front wall 14a of the brush chamber 14 located below the rotation center C of the first rotary brush 13, air intake slits 18 are provided horizontally to the left and right.

  The first rotating brush 13 includes a substantially rod-shaped rotating shaft 13a and a cleaning piece 13b that is disposed in the longitudinal direction of the outer periphery of the rotating shaft 13a and scrapes off dust on the floor surface.

  The second suction tool 11 is connected to the suction pipe 30 having the second suction port 29 on the bottom surface, and is connected to the suction head 30 so as to be rotatable and tiltable via the rotary connecting portion 31 and to the extension pipe 2. It is comprised from the connection pipe 32 for this.

  Each of the front portion and the rear portion of the lower surface of the intake head 30 is provided with a raised cloth 33 for preventing the cleaning surface from being scratched and securing a predetermined gap between the lower surface of the intake head 30 and the cleaning surface. It is stuck. In addition, although the raising cloth 33 is a thing in which the fine hair was closely raised on the sheet | seat surface, you may use a brush, felt, etc.

  Fixing holes 34 in which the fixing claws 20 provided in the first suction tool 10 are fitted are provided on both side surfaces of the suction head 30 of the second suction tool 11.

  In the present embodiment, when the second suction tool 11 is stored in the storage recess 26 of the first suction tool 10, the fixing claw 20 provided in the first suction tool 10 is inserted into the fixing hole 34 provided in the second suction tool 11. The second suction tool 11 is securely fixed, and the second suction port 29 overlaps the communication port 15 provided in the first suction tool 10 in an airtight manner. The brush chamber 14 of the 1 suction tool 10 communicates.

  In the present embodiment, the width dimension in the front-rear direction of the communication port 15 located above the first rotating brush 13 is substantially the same as that of the second suction port 29, but the present invention is not limited to this. In consideration of suction performance and noise when the second suction tool 11 is used alone, the width dimension in the front-rear direction of the second suction port 29 is made larger than that of the communication port 15. It doesn't matter. In that case, at least the front portion of the second suction port 29 may be aligned with the communication port 15.

  Moreover, when removing the 2nd suction tool 11 with which the storage recessed part 26 of the 1st suction tool 10 was removed, the fixed nail | claw 20 provided in the storage recessed part 26 was immersed in the main body 10a by pushing down the operation lever 19. Since the fitting between the fixing claw 20 and the fixing hole 34 is released, the second suction tool 11 can be easily detached from the first suction tool 10 while being connected to the extension pipe 2.

  The operation and action of the suction tool 3 in the present embodiment configured as described above are as follows.

  When cleaning a normal floor surface or carpet, the second suction tool 11 is attached to the storage recess 26 of the first suction tool 10. In this state, the fixing claw 20 on the first suction tool 10 side is fitted in the fixing hole 34 of the second suction tool 11, so that even if the hand handle 4 of the hose 6 is operated left and right, front and rear, the second The suction tool 11 does not come off from the first suction tool 10.

  When the cleaner main body 7 is operated on the floor surface, for example, the suction force by the electric blower built in the vacuum cleaner body 7 causes the hose 6, the extension pipe 2, the connection pipe 32 of the second suction tool 11, and the second suction port 29. The dust acts on the first suction port 23 through the communication port 15 and the brush chamber 14, and dust on the floor surface is sucked together with air from the first suction port 23, and the brush chamber 14, the communication port 15, and the second chamber. The suction air 29, the connecting pipe 32, the extension pipe 2, and the hose 6 lead to a dust collection chamber (not shown) in the cleaner body 7, where dust is captured and cleaned by the electric blower. After cooling, it is discharged from the rear part of the cleaner body 7. When the suction tool 3 is placed on the floor surface, a predetermined gap is formed between the bottom surface of the first suction tool 10 and the floor surface by the wheel 21, and most of the outside air is the first suction port 23. The outside air is not sucked so much from the slit 18.

  On the other hand, in order to clean the carpet, when the first suction tool 10 is placed on the carpet and the cleaner body 7 is operated, the first suction port 23 is blocked by the hair of the carpet. The suction air is vigorously sucked, and the suction air strikes the cleaning piece 13b below the center C of the first rotating brush 13, and the first rotating brush 13 rotates counterclockwise at high speed. Thereby, the dust adhering to the hair of the carpet is efficiently scraped by the cleaning piece 13b of the first rotating brush 13, and is sucked into the dust collection chamber together with the outside air flowing in from the slit 18.

  Next, when cleaning a narrow place or furniture, the fixing claw 20 on the first suction tool 10 side can be removed by simply stepping on the operation lever 19 with the first suction tool 10 placed on the floor surface. Since it sunk in the main body 10a and comes off the fixing hole 34 of the second suction tool 11, it can be easily removed from the first suction tool 10 in a state where the second suction tool 11 is connected to the extension pipe 2, and it is immediately narrow Or you can clean furniture.

  After cleaning the furniture or a narrow place, the second suction tool 11 is simply mounted in the storage recess 26 of the first suction tool 10 placed on the floor surface, and the floor of the floor or the like is used again using the first suction tool 10. The surface to be cleaned can be efficiently cleaned.

  As described above, between the intake head 30 and the connection pipe 32 of the second suction tool 11, the rotation connection part 31 that is rotatably connected in the left-right direction is provided. In the state where the first suction tool 10 is mounted, the connecting tube 32 is pivotally connected in response to the raising and lowering operation of the hand handle 4 connected to the connecting tube 32 via the extension tube 2 as shown in FIG. It rotates up and down with respect to the portion 31.

  In addition, when the hand handle 4 is rotated, that is, when the handle operation is performed to change the direction of the first suction tool 10 in the left or right direction, the movement of the hand handle 4 in the direction of the path is naturally performed. Therefore, when turning force is applied to the rotation connecting portion 31, the rotation connecting portion 31 is located on the rear side of the first suction tool 10, and therefore the first suction tool 10 is rotated in the rotation direction of the shaft. Works, and the course of the first suction tool 10 can be changed smoothly.

  In addition, in the state which removed the 2nd suction tool 11 from the 1st suction tool 10, since it will become difficult to handle if the suction head 30 of the 2nd suction tool 11 freely rotates right and left, the 2nd suction tool 11 will be 1st suction. A rotation locking means (not shown) for locking the rotation of the intake head 30 when detached from the tool 10 is provided in the second suction tool 11, and the second suction tool 11 is attached to the first suction tool 10. At this time, if the rotation lock of the intake head 30 by the rotation lock means is released by a protrusion (not shown) provided on the first suction device 10, the suction device 3 that is more convenient to use is provided. be able to.

  According to the suction tool 3 in the present embodiment configured as described above, in a state where the second suction tool 11 is mounted on the first suction tool 10, a general vacuum cleaner with the wide first suction tool 10. The cleaning surface can be efficiently cleaned in the same manner as described above, and when the operation lever 19 is stepped on as needed, such as when cleaning a narrow place or stairs where the first suction tool 10 does not enter, The second suction tool 11 can be detached from the first suction tool 10 without bending, and the cleaning using only the second suction tool 11 can be performed, thereby eliminating the troublesome work of changing the tip nozzle.

  Moreover, since the 1st suction tool 10 which left | separated the 2nd suction tool 11 exists in a to-be-cleaned surface, when cleaning using only the 2nd suction tool 11 is finished, the 2nd suction tool 11 will be 1st suction tool. Immediately after pushing into 10, you can move on to normal floor cleaning.

  Further, when the second suction tool 11 is mounted on the first suction tool 10, the second suction port 29 is located on the front side compared to the conventional one, and the first suction port 23 in the front-rear direction of the suction tool 3. Therefore, the air pressure loss therebetween is reduced and the dust suction performance is improved, and the depth dimension of the entire suction tool 3 is reduced, and the usability is improved.

  In addition, since the wheel 21 is disposed behind the rotation fulcrum of the rotation connecting portion 31 provided in the second suction tool 11, the second suction tool 11 is moved to the first suction tool by the operation of the hand handle 4. 10, the front part of the first suction tool 10 does not stand up or run forward with the wheel 21 as a fulcrum, which is very convenient to use.

(Embodiment 2)
Fig.5 (a) is a side view of the 2nd suction tool of the vacuum cleaner suction tool in the 2nd Embodiment of this invention, (b) is sectional drawing (2nd) of the vacuum cleaner suction tool. (The state in which the suction tool is mounted on the first suction tool). In addition, about the same part as the suction tool for vacuum cleaners in the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In FIG. 5, the vacuum cleaner suction tool 35 in the present embodiment includes a first suction tool 36 and a second suction tool 38 that is detachably mounted in a storage recess 37 provided in the first suction tool 36. Has been. Both side surfaces of the second suction tool 38 are provided with a semicircular cutout portion 39 and a closing means 41 that is rotatable about a rotation shaft 40 and closes the cutout portion 39. The configuration of is the same as the second suction tool 11 in the first embodiment.

  In the present embodiment, the closing means 41 is substantially semicircular and is arranged on the back side of both side surfaces of the second suction tool 38. When the second suction tool 38 is a single body, the closing means 41 is as shown in FIG. The notch 39 is closed by its own weight.

  On the other hand, the storage recess 37 provided in the first suction tool 36 is formed deeper than the storage recess 26 in the first embodiment, and when the second suction tool 38 is attached to the storage recess 37, 2 The peripheral edge 39a of the notch 39 of the suction tool 38 covers substantially the upper half of the first rotating brush 13, that is, the substantially upper half of the first rotating brush 13 is positioned in the notch 39. It is configured.

  Reference numeral 42 denotes a restriction pin provided on the side wall of the storage recess 37 of the first suction tool 36, which comes into contact with the lower edge of the closing means 41 when the second suction tool 38 is attached to the storage recess 37. In addition to functioning to turn 41 upward, the notch 39 is arranged to be fully opened when the second suction tool 38 is completely attached to the storage recess 37.

  As described above, according to the present embodiment, when the second suction tool 38 is attached to the first suction tool 36, the upper half of the first rotary brush 13 is positioned in the notch 39, thereby The 1 suction tool 36 can hold | maintain the 2nd suction tool 38 in a lower position, can reduce the height of the suction tool 35 whole, and can improve usability now.

  Further, when the second suction tool 38 is removed from the first suction tool 36 in order to perform the cleaning work with the second suction tool 38 alone, the closing means 41 is separated from the regulation pin 42 and comes down with its own weight. Since the cutout portion 39 is closed, outside air does not enter from the cutout portion 39, and the dust suction performance from the second suction port 43 provided on the bottom surface of the second suction tool 38 does not deteriorate.

(Embodiment 3)
6A is a cross-sectional view of the second suction tool of the vacuum cleaner suction tool according to the third embodiment of the present invention, FIG. 6B is a back view of the second suction tool, and FIG. It is sectional drawing (the state which mounted | wore the 1st suction tool with the 2nd suction tool) of the suction tool for vacuum cleaners. In addition, about the same part as the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  6 and 7, the vacuum cleaner suction tool 45 (hereinafter referred to as “suction tool 45”) in the present embodiment is attached to and detached from the first suction tool 46 and the storage recess 47 provided in the first suction tool 46. The second suction tool 48 is mounted freely and has a second suction port 49 on the bottom surface.

  The second suction tool 48 includes a second rotary brush 50 that is rotatably disposed so as to face the second suction port 49, a motor, and the like, and is a drive that rotationally drives the second rotary brush 50 via the belt 51. Means 52 are provided.

  The connection pipe 32 of the second suction tool 48 includes a power receiving pin 56 that is electrically connected to a wiring (not shown) disposed in the extension pipe 2 when the extension pipe 2 is connected to the connection pipe 32. A lead wire 57 for electrically connecting the power receiving pin 56 and the driving means 52 is disposed. The second rotating brush 50 includes a substantially rod-shaped rotating shaft 50a and a cleaning piece 50b that is arranged radially in the outer peripheral longitudinal direction of the rotating shaft 50a and scrapes off dust on the cleaning surface.

  In the present embodiment, when the second suction tool 48 is mounted in the storage recess 47 of the first suction tool 46, the cleaning piece 50b of the second rotary brush 50 and the first suction tool 46 are provided rotatably. The positional relationship between them is set so that the cleaning piece 13b of the one-rotation brush 13 overlaps in the vertical direction.

  Next, operation | movement and an effect | action of the suction tool 45 in this Embodiment are demonstrated.

  First, when cleaning a cleaning surface such as a wooden floor, as in the first embodiment, the second suction tool 48 connected to the extension pipe 2 is attached to the storage recess 47 of the first suction tool 46, By operating the hand handle 4 while operating the cleaner body 7 and moving the first suction tool 46 on the cleaning surface, the dust on the cleaning surface is sucked and cleaned.

  Next, when cleaning a carpet or the like, the second suction tool 48 connected to the extension pipe 2 is attached to the storage recess 47 of the first suction tool 46, the vacuum cleaner body 7 is operated, and the handle 4 is attached to the hand handle 4. By operating a switch (not shown) provided, the drive means 52 provided in the second suction tool 48 is energized to rotate the second rotating brush 50. Here, when the second rotating brush 50 is rotated, the first rotating brush 13 having the cleaning piece 13b overlapping with the cleaning piece 50a is rotated, and dust on the carpet can be efficiently scraped and sucked. .

  When cleaning a narrow place such as between stairs and furniture, remove the first suction tool 46 from the first suction tool 46 with the second suction tool 48 connected to the extension pipe 2 as in the first and second embodiments. To do so.

  In particular, since the second suction tool 48 in the present embodiment includes the second rotating brush 50, it is extremely convenient for cleaning between furniture placed in a room where carpets are laid.

  As described above, according to the present embodiment, since the driving means 52 for rotationally driving the first rotating brush 13 provided in the first suction tool 46 is provided in the second suction tool 48, the first suction tool 46 no longer requires electrical components such as a motor, and accordingly, electrical components such as contacts and terminals for electrically connecting the first suction tool 46 and the second suction tool 48 are also unnecessary, and the suction tool 45 is inexpensive. Can be configured.

  In particular, in the present embodiment, the cleaning pieces 13b and 50b are overlapped so that the first rotary brush 13 is directly driven to rotate by the second rotary brush 50. The power transmission structure is simplified, the suction tool 45 can be easily assembled, and can be provided at low cost.

(Embodiment 4)
Fig.8 (a) is sectional drawing (state put on the cleaning surface) of the vacuum cleaner suction tool in the 4th Embodiment of this invention, (b) is sectional drawing of the vacuum cleaner suction tool. (A state where it is lifted from the cleaning surface). In addition, about the same part as the vacuum cleaner suction tool in the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In FIG. 8, the vacuum cleaner suction tool 60 (hereinafter referred to as “suction tool 60”) in the present embodiment is detachably attached to the first suction tool 61 and the storage recess 62 provided in the first suction tool 61. The second suction tool 63 is connected to the bottom of the second suction tool 63 between the power receiving pin 56 and the driving means 52 in series and serves as a shut-off means for shutting off the power supply by magnetism. A reed switch 64 is provided. The other structure of the 2nd suction tool is the same as the suction tool 45 in 3rd Embodiment.

  On the other hand, at the bottom of the first suction tool 61, there is a roller 65 that is movable up and down and that is rotatable at the lower end, and a floor surface detection rod 67 urged downward by the urging means 66, and the roller 65 appears and disappears. An opening 68 and one end of which is pivotally supported on the upper end of the floor surface detection rod 67 and a magnet piece 69 serving as an operating body for operating the reed switch 64 is attached to the other end. A connecting rod 71 pivotally supported by a column 70 fixed to the first suction tool 61 is provided. The magnet piece 69 is positioned below the reed switch 64 in terms of position.

  As shown in FIG. 8A, when the suction tool 60 is placed on the floor surface, the roller 65 of the floor surface detection rod 67 comes into contact with the floor surface, and the floor surface detection rod 67 rises, and the opposite side The magnet piece 69 descends downward, the magnetism of the magnet piece 69 does not reach the reed switch 64, and the reed switch 64 is turned on. Conversely, as shown in FIG. 8B, when the suction tool 60 is lifted from the floor surface, the floor surface detection rod 67 is moved downward by the urging means 66, and the magnet piece 69 is moved to the bottom of the storage recess 62. While being in contact with the wall, it is closest to the reed switch 64. Thereby, the magnetism of the magnet piece 69 acts on the reed switch 64 so that the reed switch 64 is turned off.

  The operation and action of the suction tool 60 in the present embodiment configured as described above are as follows.

  In the case of normal floor cleaning, when the second suction tool 63 is attached to the storage recess 62 of the first suction tool 61 and the first suction tool 61 is placed on the floor surface, the state shown in FIG. It becomes. In this state, the roller 65 of the floor surface detection rod 67 contacts the floor surface, the floor surface detection rod 67 is pushed upward against the urging force of the urging means 66, and the magnet piece 69 is more than the reed switch 64. As a result, the magnet piece 69 does not reach the reed switch 64 and the reed switch 64 is turned on.

  As a result, a switch (not shown) provided on the hand handle 4 is operated to energize the driving means 52 to rotationally drive the second rotating brush 50 and the first rotating brush 13 to scrape dust on the floor surface. be able to. If the first suction tool 61 is temporarily lifted during cleaning, the floor surface detection rod 67 is moved downward by the biasing means 66, the magnet piece 69 comes closest to the reed switch 64, and the magnet piece 69 Since magnetism acts on the reed switch 64, the reed switch 64 is turned off, and the rotation of the second rotating brush 50 and the first rotating brush 13 is stopped, which is safe.

  Further, when the second suction tool 63 is removed from the first suction tool 61, the magnetism of the magnet piece 69 does not reach the reed switch 64, and the reed switch 64 is turned on. Since the cleaning operation can be performed while rotating the rotating brush 50, it is easy to use.

  As described above, according to the present embodiment, when the first suction tool 61 is separated from the cleaning surface when the second suction tool 63 is attached to the first suction tool 61 and a normal cleaning operation is performed. Since the reed switch 64 operates and the energization to the driving means 52 is cut off, it is safe. In addition, since it is not necessary to provide the reed switch 64, which is one of the electrical components, on the first suction tool 61 side, electrical contacts such as contacts and terminals for electrically connecting the first suction tool 61 and the second suction tool 63 are provided. A part becomes unnecessary and the structure of the 1st, 2nd suction tools 61 and 63 is simplified, and it can form in low cost.

  In the above embodiment, the suction tool 3, 35, 45, 60 has been described as an example using the floor moving type vacuum cleaner 1 to which the hose 6 and the extension pipe 2 are connected. It is not particularly limited to the form, and the suction tool 3, 35, 45 or the vacuum cleaner referred to as a hand cleaner in which a suction tool is attached to the main body with a short conduit with a handy handle. 60 may be connected, whereby the function as a hand cleaner can be improved.

  As described above, the vacuum cleaner suction tool according to the present invention is small in size, has low pressure loss and excellent dust suction performance, and is applied to various vacuum cleaners for home use, business use, store use, etc. It is something that can be done.

Whole perspective view of the vacuum cleaner which connected the suction tool for vacuum cleaners in the 1st Embodiment of this invention The perspective view which shows the mode of attachment or detachment of the 1st suction tool and the 2nd suction tool of the suction tool for the vacuum cleaner (A) Sectional view of the second suction tool, (b) Back view of the second suction tool Sectional drawing of the suction tool for vacuum cleaners (state which attached the 2nd suction tool to the 1st suction tool) (A) The side view of the 2nd suction tool of the vacuum cleaner suction tool in the 2nd Embodiment of this invention, (b) Cross-sectional view of the vacuum cleaner suction tool (the 2nd suction tool is made into 1st suction. (When attached to equipment) (A) Sectional drawing of the 2nd suction tool of the suction tool for vacuum cleaners in the 3rd Embodiment of this invention, (b) The back view of the 2nd suction tool Sectional drawing of the suction tool for vacuum cleaners (state which attached the 2nd suction tool to the 1st suction tool) (A) Sectional drawing (state put on cleaning surface) of vacuum cleaner suction tool in 4th Embodiment of this invention, (b) Sectional drawing of the vacuum cleaner suction tool (lifted from cleaning surface) Status) A perspective view of a conventional vacuum cleaner suction tool Cross-sectional view of the vacuum cleaner suction tool Perspective view of another conventional vacuum cleaner suction tool Cross-sectional view of the vacuum cleaner suction tool Sectional drawing of the 2nd suction tool of the suction tool for the vacuum cleaner

Explanation of symbols

1 Vacuum cleaner 3, 35, 45, 60 Vacuum cleaner suction tool (suction tool)
7 Vacuum cleaner body 10, 36, 46, 61 First suction tool 11, 38, 48, 63 Second suction tool 13 First rotating brush 14 Brush chamber 23 First suction port 29, 43, 49 Second suction port 39 Notch 41 Blocking means 50 Second rotating brush 52 Driving means 64 Reed switch (blocking means)
69 Magnet piece (action body)

Claims (7)

A brush chamber for rotatably storing the first rotating brush, a first suction tool having a first suction port on the bottom surface, and a second suction port on the bottom surface and detachably attached to the first suction tool. The second suction tool is mounted, and when the second suction tool is mounted on the first suction tool, at least a front portion of the second suction port is located above the first rotary brush and the Vacuum cleaner suction tool that communicates with the brush chamber. 2. A substantially semicircular cutout is provided on both side walls of the second suction tool, and the first rotating brush is positioned in the cutout when the second suction tool is mounted on the first suction tool. The vacuum cleaner suction tool described in 1. The vacuum cleaner suction tool according to claim 2, further comprising a closing unit that closes the notch when the second suction tool is detached from the first suction tool. The vacuum cleaner suction tool according to any one of claims 1 to 3, wherein the second suction tool is provided with driving means for rotationally driving the first rotary brush. The second suction tool is provided with a blocking means for cutting off energization to the driving means during operation, and the first suction tool operates the blocking means when the first suction tool is separated from the cleaning surface. The vacuum cleaner suction tool according to claim 4, wherein a vacuum cleaner is provided. The vacuum cleaner for a vacuum cleaner according to claim 4 or 5, wherein the second suction brush is provided with a second rotary brush that is rotationally driven by a driving means, and the first rotary brush is directly rotationally driven by the second rotary brush. Suction tool. The vacuum cleaner provided with the vacuum cleaner main body which incorporates an electric blower, and the suction tool for vacuum cleaners of any one of Claims 1-6.

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