JP2006034659A - Intake device for vacuum cleaner and electric vacuum cleaner provided with the device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intake device for vacuum cleaner which is lightweight and is provided with good operability and dust collecting function. <P>SOLUTION: It is provided with a rotary brush 20 which is rotated by the intake wind generated by an electric air blower (unillustrated) built in the electric vacuum cleaner body (unillustrated) and stirs up dusts on the surface to be cleaned, and an inlet duct 23 which is installed at the bottom surface and sucks the dust. A concave section 18 is formed on the front edge section of the inlet duct 23 for expanding the gap between the floor surface. The cleaner can be light-weight as it does not require optional parts such as motor for driving the rotary brush 20 by which improves its operability. As the gap between the front edge section of the inlet duct 23 and the floor surface is small, apart from the concave section 18, the speed of sucking air is accelerated and the dust stirring up function and dust collecting function are significantly improved by effectively rotating the rotary brush 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner suction tool including two suction tools and a vacuum cleaner including the same.

  This type of conventional vacuum cleaner suction tool will be described with reference to FIGS.

7 and 8, this type of conventional vacuum cleaner suction tool includes a floor nozzle 111 and a small nozzle 110 that is detachably attached to the floor nozzle 111. The floor nozzle 111 is configured as a so-called power nozzle, and has a function of rotating the rotating brush 120 by a motor 121 to scrape dust from a carpet or the like. The floor nozzle 111 is provided with a wide suction portion 124 having a horizontally long suction port 123 that accommodates the rotating brush 120, and a running portion 125 that protrudes rearward from the central portion thereof, and the planar shape is a T-shape. As shown in FIG. 8, a small nozzle housing recess 126 that houses the small nozzle 110 is formed on the upper surface side from the rear end of the traveling portion 125 to the suction portion 124. A communication port 127 communicating with the suction port 123 is opened on the front side in the small nozzle housing recess 126, and when the small nozzle 110 is attached to the small nozzle housing recess 126, an opening formed at the tip of the small nozzle 110 is formed. 130 and the communication port 127 communicate with each other to form an air flow path to the cleaner body. The front wall 135 of the suction port 123 forms a constant gap 136 with the floor surface as a whole (see, for example, Patent Document 1).
JP 2003-339585 A

  However, like the conventional vacuum cleaner suction tool, the rotating brush 120 is rotated by the motor 121 and dust is collected together with air from the gap 136 between the floor wall of the front wall 135 of the floor nozzle 111 and the floor surface. Since the vacuum cleaner suction tool is provided with the rotating brush 120 driven by the motor 121 in order to obtain the dust collection performance, it has a problem that the mass becomes heavy and it is difficult to use.

  Further, in order to reduce the mass, the floor nozzle 111 is not provided with a motor 121 and is rotated by applying the suction air of an electric blower (not shown) in the cleaner body (not shown) to the rotating brush 120. There is also a vacuum cleaner suction tool that rotates the rotary brush 120 when the small nozzle 110 is attached, but the gap between the front wall 135 for air suction and the floor surface is made the full width of the suction port 123. If the air is taken over a wide area, the wind speed of the suction air becomes weak, and the rotating brush 120 does not rotate sufficiently, resulting in a problem that the dust collecting performance is lowered.

  This invention solves the said conventional subject, and it aims at providing the suction tool for vacuum cleaners and the vacuum cleaner which were lightweight and excellent in operativity and dust collection performance.

  In order to solve the above-described conventional problems, the vacuum cleaner suction tool of the present invention has a rotating brush that rotates with suction air generated by an electric blower built in the main body of the vacuum cleaner and sweeps up dust on the surface to be cleaned. A first suction tool and a second suction tool that is detachably attached to the first suction tool and has a function of sucking dust on the surface to be cleaned, and is provided on the lower surface of the first suction tool and sucks dust. The front edge of the mouth is formed with a recess that widens the gap between the floor and no separate parts such as a motor to drive the rotating brush are required, reducing the weight of the first suction tool and improving the operability. Since the clearance between the front edge of the suction port and the floor is small in other areas, the suction air speed increases and the rotating brush rotates efficiently, greatly improving the dust scraping performance and dust collection performance. To do. Moreover, the cleaning operation | movement using each of the 1st, 2nd suction tool can be performed stably.

  The vacuum cleaner suction tool of the present invention is lightweight, excellent in operability and dust collection performance, and easy to use.

  1st invention has the 1st suction tool which has a rotating brush which rotates with the suction wind by the electric blower built in the vacuum cleaner main body, and scrapes up the dust on the surface to be cleaned, and is detachable from the 1st suction tool. And a second suction tool having a function of sucking dust on the surface to be cleaned, and a gap between the front edge of the suction port provided on the lower surface of the first suction tool and sucking dust is widened with the floor surface. Since it has a recess, no separate parts such as a motor for driving the rotating brush are required, so the first suction tool is reduced in weight and operability is improved, and in addition to the recess, the front edge of the inlet and the floor surface Since the gap is small, the wind speed of the suction air is increased, and the rotating brush is efficiently rotated to greatly improve the dust scraping performance and dust collection performance. Moreover, the cleaning operation | movement using each of the 1st, 2nd suction tool can be performed stably.

  In particular, the second invention is a structure in which a roller is provided by projecting from the front part of the first suction tool of the first invention, and the roller has elasticity, and when the second suction tool is mounted, Even if one suction tool is pushed forward and moved, the elastic roller part hits the wall or furniture first, so the wall or furniture is not damaged, and it is easy to use.

  In the third invention, in particular, the clearance between the top surface and the cleaning surface of the recess of the first or second invention is set to 2 mm or more, and the dust collection performance of large garbage such as rice grains can be improved efficiently.

  According to a fourth aspect of the invention, in particular, the first suction opening communicated with the suction port of the first suction tool when the second suction tool of any one of the first to third aspects of the invention is attached to the first suction tool. In addition, another second opening is formed, and dust can be efficiently collected from the two openings when the second suction tool alone is cleaned.

  5th invention is equipped with the main body which incorporated the electric blower, and the suction tool for vacuum cleaners of any one of Claims 1-4, and is excellent in dust collection performance and easy-to-use electric cleaning Machine can be provided.

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

(Embodiment 1)
Hereinafter, the cleaner for vacuum cleaner in the 1st Embodiment of this invention is demonstrated using FIGS.

  FIG. 1 is an overall perspective view of a vacuum cleaner suction tool according to the present invention and a floor moving type vacuum cleaner connected thereto.

  In the drawing, the vacuum cleaner 1 has a vacuum cleaner suction tool 3 attached to the tip of the vacuum cleaner 1, and the other end of the vacuum cleaner 1 is connected to a hand handle (hand control tube) 4 and extends from the hand handle 4. And a hose 6 connected to the cleaner body 7 via a hose joint 5. The cleaner body 7 includes an electric blower (not shown) and a control member (not shown) for controlling the same. Has been.

  Next, the detail of the said suction tool 3 for vacuum cleaners is demonstrated using FIG. 1, FIG.

  As shown in FIG. 2, the vacuum cleaner suction tool 3 has a suction pipe 30 connected to a connecting pipe (connecting part) 9 for connecting to the extension pipe 2 via a rotating connecting part (rotating connecting means) 8. The connected second suction tool 10 is detachably mounted on the first suction tool 11.

  The attachment / detachment of the second suction tool 10 with respect to the first suction tool 11 is performed by holding a holding tool (not shown) that holds the second suction tool 10 by pushing down the operation lever 13 provided in the first suction tool 11. Is released, the second suction tool 10 can be detached from the first suction tool 11, and a narrow place can be cleaned using the second suction tool 10. Moreover, the second suction tool 10 is mounted on the first suction tool 11 by placing the second suction tool 10 in the holder and pressing it lightly, and the first suction tool 11 is used to efficiently clean the surface to be cleaned. Can be done.

  As for the said 2nd suction tool 10, as shown in FIG. 3, the lower side surface used as the mounting direction surface to the 1st suction tool 11 is affixed with the raising cloth (raised body) 14 in order to prevent the floor surface from being damaged. And the 2nd opening 15 is opening. Moreover, the 1st opening 16 connected to the inlet 23 of the 1st suction tool 11 mentioned later is provided in the front end side.

  In FIGS. 3 and 4, reference numeral 17 denotes a lid that is spring-biased in the direction of closing the first opening 16. When the second suction tool 10 is attached to the first suction tool 11, it resists the spring biasing force. When the lid 17 is opened, the first opening 16 communicates with the suction port 23 of the first suction tool 11, and the second suction tool 10 is detached from the first suction tool 11, FIG. As shown in FIG. 1, the first opening 16 is closed by a spring-biased lid body 17 except for a part on the lower surface side.

  At this time, the vertical dimension of the lid body 17 is made smaller than the opening height dimension of the first opening 16, and a state in which the first opening 16 is partially closed while the lower part of the first opening 16 is opened is obtained. At this time, the opening area A of the first opening 16 when closed by the lid 17 is configured to be larger than the opening area B of the second opening.

  In FIG. 5, a rotating brush 20 is rotatably provided in the first suction tool 11. A rotary shaft 20b of the rotary brush 20 is provided with a scraping body 20a made of a brush, a blade, or the like, and the rotary brush 20 is driven to rotate by the intake air generated by the cleaner body 7 so as to scrape dust from a carpet or the like. It has.

  Further, a brush body 35 made of brush or fiber is provided at the rear of the suction port 23 of the first suction tool 11, and when the second suction tool 10 is attached to the first suction tool 11, the lower surface of the first suction tool 11 hits the floor surface. I try to prevent scratches. Further, since the brush body 35 is provided at the rear part of the suction port 23, dust collected by the rotational force of the rotary brush 20 is not released back, so that the dust collecting power can be improved.

  In FIG. 6, the first suction tool 11 is provided with a wide suction chamber 24 in which a horizontally long suction port 23 that accommodates the rotating brush 20 is formed, and a running portion 25 that protrudes rearward from the central portion thereof. The shape is formed in a letter T shape. The front part of the first suction tool 11 has elasticity such as rubber or a raised cloth, and a roller 12 made of a soft material and slippery than the front part of the first suction tool 11 is provided with the roller 12 of the first suction tool 11. It protrudes from the front and is attached. Further, a concave portion 18 having a wide gap with the floor surface is formed at the front edge portion of the suction port 23 of the first suction tool 11, and the gap dimension between the top surface and the floor surface of the concave portion 18 is set to 2 mm or more. ing.

  As shown in FIG. 2, a second suction tool storage recess 26 is formed on the upper surface side from the rear end of the traveling unit 25 to the suction chamber 24. A vent hole 27 communicating with the suction chamber 24 is opened on the front side in the second suction tool housing recess 26. At this time, the mating portion 19 between the first suction tool 11 and the second suction tool 10 is located behind the rear wall 24a of the suction chamber 24 (on the second suction tool 10 side). The vent 27 is provided with a bell mouth body 31 that constitutes a part of the suction chamber 24 and has a smooth invitation shape. When the second suction tool 10 is mounted in the second suction tool storage recess 26, the lid 17 of the first opening 16 formed in the second suction tool 10 is opened, and the gap between the vent 27 and the first opening 16 is opened. In communication, an air flow path to the cleaner body 7 is formed.

  An air inlet (not shown) is provided at the front of the suction chamber 24. A straight line connecting the air intake port and the vent hole 27 is configured to be displaced from the rotation center of the rotary brush 20 so that the rotational force of the rotary brush 20 can be obtained by the intake air flowing from the air intake port.

  FIG. 4 is a cross-sectional view showing a state in which the second suction tool 10 is attached to the first suction tool 11, and when the second suction tool 10 is attached to the first suction tool 11, the inside of the second suction tool storage recess 26. The opening / closing operation rib 28 that protrudes from the front side toward the rear side and serves as the first opening / closing means pivots the lid body 17 that partially closes the first opening 16 of the second suction tool 10 by a spring bias. Then, as shown in the figure, the lid 17 is opened against the spring biasing force, the first opening 16 is fully opened, and an air flow path from the suction port 23 to the connecting pipe 9 is formed.

  Moreover, since the 2nd opening 15 of the 2nd suction tool 10 is a part of 1st suction tool 11, specifically, it is obstruct | occluded by the bottom face of the 2nd suction tool accommodation recessed part 26, Therefore In a state where the first suction tool 11 is attached, only intake from the suction port 23 is performed, and the dust suction capability of the first suction tool 11 is not impaired.

  In FIG. 3, the second suction tool 10 can be detached from the first suction tool 11 by depressing the operation lever 13 provided in the first suction tool 11 downward (stepping on with a foot tip). When the second suction tool 10 is removed from the first suction tool 11, the lid 17 provided in the first opening 16 is not pressed by the opening / closing operation rib 28 as shown in FIG. The body 17 rotates in a direction to close the first opening 16. At this time, the vertical dimension of the lid body 17 is made smaller than the opening height dimension of the first opening 16, and a state in which the first opening 16 is partially closed while the lower part of the first opening 16 is opened is obtained. At this time, the opening area A of the first opening 16 when closed by the lid 17 is configured to be larger than the opening area B of the second opening 15. Further, since the second opening 15 is in an open state, an air flow path from the two openings of the first opening 16 and the two openings 15 to the connecting pipe 9 is formed, and the dust collection function by the second suction tool 10 is formed. Is obtained.

  As described above, the second suction tool 10 is provided with the rotation connecting portion 8 that rotatably connects the intake head 30 and the connecting pipe 9 in the left-right direction, as shown in FIGS. In addition, when the second suction tool 10 is mounted on the first suction tool 11, the connection pipe 9 is pivotally connected in accordance with the raising / lowering operation of the hand handle 4 connected to the connection pipe 9 via the extension pipe 2. When the handle 8 is rotated up and down with respect to the portion 8 and the handle 4 is rotated, that is, when the handle of the first suction tool 11 is changed to the left or right, the handle is moved in the track direction. 4 is naturally moved. Therefore, when rotational force is applied to the rotation connecting portion 8, the rotation connecting portion 8 is provided on the rear side of the first suction tool 11. The movement that the 1 suction tool 11 rotates works, and the course change of the 1st suction tool 11 is smooth. It is.

  In a state where the second suction tool 10 is attached to the first suction tool 11, the surface to be cleaned can be efficiently cleaned by the wide first suction tool 11 in the same manner as a general electric vacuum cleaner. The rotating brush 20 is rotated by the suction air of the machine body 7 and the dust on the floor surface and the carpet can be scraped off, so that the dust collecting performance is improved. Moreover, since the rotary brush 20 provided in the 1st suction tool 11 is rotationally driven by a suction wind, the motor etc. which drive the rotary brush 20 become unnecessary, and the 1st suction tool 11 can be reduced in weight.

  Moreover, since the elastic roller 12 protruded from the front part of the first suction tool 11 and attached, the second suction tool 10 is detachably connected to the first suction tool 11 and the cleaning operation using each suction tool. Can be stably performed, and when the second suction tool 10 is mounted, even if the first suction tool 11 is pushed forward and moved, the elastic roller 12 hits the wall or furniture first, so there is a risk of damaging it. It is easy to use.

  In the above embodiment, the roller 12 is made of an elastic material to make it elastic. However, other configurations such as a shaft (not shown) supporting the roller 12 itself are made elastic. The roller 12 may be moved by being made of a material and the shaft itself is elastically deformed, and any configuration having elasticity is possible.

  Since the matching part 19 of the 1st suction tool 11 and the 1st opening 16 of the 2nd suction tool 10 is located in the rear part from the rear wall 24a of the suction chamber 24 which provided the rotating brush 20 of this 1st suction tool 11. A certain distance is secured between the first opening 16 of the second suction tool 10 and the suction chamber 24, the intake air flows smoothly, and the noise of the vacuum cleaner suction tool 3 can be reduced.

  Next, when cleaning a narrow space such as between furniture where the first suction tool 11 does not enter, or stairs, etc., if you step on the operation lever 13 as necessary, you will not bend Since the second suction tool 10 can be detached from the first suction tool 11 and cleaning can be performed using the small second suction tool 10, the troublesome work of changing the tip nozzle (not shown) or the like of another component is eliminated. . Moreover, since the 1st suction tool 11 which made the 2nd suction tool 10 detach | leave is in a to-be-cleaned surface, when using the 1st suction tool 11 again, the 1st suction tool 11 is made to the 1st suction tool 11 without bending down. 2 When the suction tool 10 is pushed in, normal floor cleaning can be started immediately.

  As described above, the first opening 16 of the second suction tool 10 is closed by the lid body 17 leaving the lower side when leaving from the first suction tool 11, so that the opening area of the first opening 16 is reduced. Since the intake air flow rate increases and opens on the side close to the cleaning surface, the second suction tool 10 can also obtain a dust collecting effect from the tip side, and can be cleaned in a wider range.

  As described above, according to the present embodiment, the floor is formed on the front edge portion of the front lower surface suction port 23 to which the second suction tool 10 of the first suction tool 11 including the second suction tool 10 is attached. By forming the concave portion 18 having a wide gap with the surface, the suction force of the second suction tool 10 works effectively, so that dust such as rice grains on the floor surface is efficiently collected and the dust collection performance is improved. be able to.

  Moreover, by attaching the 2nd suction tool 10 to the 1st suction tool 11 which has not provided the motor so that attachment or detachment is possible, the elastic roller 12 which protrudes from the front part of this 1st suction tool 11 was attached, The second suction tool 10 is detachably connected to the first suction tool 11 so that the cleaning operation using each suction tool can be performed stably, and the first suction tool 11 having a light mass can be provided, so that the usability is improved. In addition, when the second suction tool 10 is mounted on the first suction tool 11, even if the first suction tool 11 is pushed forward and moved, the elastic roller 12 hits the wall or furniture, and damages it. It is easy to use, such as no worries, and it is made of a material that is easy to slide.

  Moreover, the 1st opening 16 and the 2nd opening 15 which were formed in the 2nd suction tool 10 constituted the opening area of the 1st opening 16 in the state removed from the 1st suction tool 11, Therefore The 2nd suction tool 10 When the effective opening area of the first opening 16 comes into contact with the cleaning surface when the cleaning is performed, the first opening 16 is wide, so that the intake air flows smoothly and the noise generated in the second suction tool 10 is suppressed.

  Further, the second suction tool 10 is cleaned by the second suction tool 10 by forming a dust passage 16 when the second suction tool 10 is attached to the first suction tool 11 and forming the second opening 15 separately. Dust can be collected efficiently from the two openings.

  Furthermore, since the matching part 19 of the vent hole 27 formed in the first suction tool 11 and the first opening 16 formed in the second suction tool 10 is located behind the rear wall 24a of the suction chamber 24, the first 2 Since a certain distance can be secured between the first opening 16 of the suction tool 10 and the suction chamber 24, the intake air flows smoothly and the intake sound generated at the connecting portion is reduced, and the noise of the vacuum cleaner suction tool 3 can be reduced. .

  Since the first suction tool 11 communicates with the cleaner body 7 via the second suction tool 10, the second suction tool 10 is attached to the first suction tool 11 and cleaned while rotating the rotary brush 20. If the second suction tool 10 is removed from the first suction tool 11 when the second suction tool 10 is removed, the suction air does not act on the first suction tool 11 and the rotary brush 20 stops instantaneously, which is safe. .

  On the other hand, when the second suction tool 10 is being cleaned only with the second suction tool 10, when the second suction tool 10 is attached to the first suction tool 11, the suction air immediately acts on the first suction tool 11, and the rotating brush 20. It can rotate and can immediately start cleaning carpets, etc., and it is very easy to use without loss of cleaning work and trouble.

  In addition, since the vent 27 that communicates with the second suction tool 10 is formed at the rear part of the suction chamber 24, the dust swept up by the rotary brush 20 is surely sent to the second suction tool 10 through the vent 27. Therefore, the cleaning work can be performed efficiently.

  As described above, the vacuum cleaner suction tool according to the present invention is lightweight, excellent in operability, excellent in dust collection performance, and easy to use, and can be applied to a vacuum cleaner such as a commercial vacuum cleaner.

Whole perspective view of the vacuum cleaner which connected the suction tool for vacuum cleaners in Embodiment 1 of this invention Top view of vacuum cleaner suction tool (A) Bottom view of second suction tool of vacuum cleaner suction tool (b) Side sectional view of second suction tool Cross-sectional view of the vacuum cleaner suction tool Sectional drawing of the 1st suction tool of the suction tool for the vacuum cleaner Back view of the first suction tool Plan view of a conventional vacuum cleaner suction tool Cross-sectional view of the vacuum cleaner suction tool

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Vacuum cleaner suction tool 7 Vacuum cleaner main body 10 2nd suction tool 11 1st suction tool 15 2nd opening 16 1st opening 18 Recessed part 20 Rotating brush 23 Suction port 27 Ventilation hole

Claims (5)

A first suction tool having a rotating brush that rotates with suction air generated by an electric blower built in the main body of the vacuum cleaner and sweeps up dust on the surface to be cleaned; and detachably attachable to the first suction tool on the surface to be cleaned And a second suction tool having a function of sucking dust, and a vacuum cleaner provided on the lower surface of the first suction tool with a recess that widens the gap with the floor surface at the front edge of the suction port for sucking dust Suction tool. The vacuum cleaner suction tool according to claim 1, wherein a roller is provided by projecting from a front portion of the first suction tool, and the roller has elasticity. The vacuum cleaner suction tool according to claim 1 or 2, wherein a gap between the top surface of the recess and the cleaning surface is 2 mm or more. The first suction opening communicating with the suction port of the first suction tool when the second suction tool is attached to the first suction tool, and the second opening different from this is formed. The suction tool for vacuum cleaners of any one of Claims. The vacuum cleaner provided with the main body which incorporated the electric blower, and the vacuum cleaner suction tool of any one of Claims 1-4.

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