JP2006026201A - Suction tool for vacuum cleaner and electric vacuum cleaner provided with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction tool for a vacuum cleaner of low noise and excellent operability and dust collecting performance. <P>SOLUTION: The suction tool comprises a first suction tool 11 provided with a suction chamber 24 having an intake port on the bottom surface, a second suction tool 10 freely attachable and detachable to/from the first suction tool 11 and provided with an opening on the front part, a rotary brush freely rotatably provided in the suction chamber 24 for raking up dust on a surface to be cleaned by being rotated by suction air by the motor-driven blower of an electric vacuum cleaner main body, and a ventilation port provided on the first suction tool 11 and communicated with the intake port. The joining part 19 of the ventilation port and the opening is positioned at the rear part of the rear wall 24a of the suction chamber 24. Since a fixed distance is secured between the opening and the suction chamber 24 and intake air smoothly flows, intake sound is reduced and noise is reduced. Also, since the need of separate components such as a motor for driving the rotary brush is eliminated, the first suction tool 11 is made light in weight and the dust on a carpet or the like is also raked out with the rotary brush, the dust collecting performance is improved. <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.

  In FIG. 7, the conventional vacuum cleaner suction tool 100 includes a floor nozzle 111 having a wide suction portion 124 and a small nozzle 110 that is detachably attached to the floor nozzle 111.

  As shown in FIG. 8, the floor nozzle 111 is configured as a so-called power nozzle, and a rotary brush 120 having a scraper 120a made of a brush and a rubber blade attached to a rotary shaft 120b is rotatably provided in a suction portion 124. The rotary brush 120 is driven to rotate by a motor (not shown) so as to scrape dust from a carpet or the like.

  A horizontally long suction port 123 is formed on the lower surface of the wide suction portion 124 provided in the floor nozzle 111, and a traveling portion 125 projects rearward from the central portion of the suction portion 124, and the planar shape of the floor nozzle 111 is substantially T A small nozzle storage recess 126 for storing 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. When the small nozzle 110 is attached to the small nozzle housing recess 126, an air flow path to the cleaner body is formed. It is formed.

130 is an opening provided at the tip of the small nozzle 110, and a matching part 131 between the opening 130 and the communication port 127 forming the opening of the floor nozzle 111 is located on the front side of the rear wall 124 a of the suction part 124. (For example, refer to Patent Document 1).
JP 2003-339585 A

  However, in the conventional vacuum cleaner suction tool described above, the matching portion 131 between the opening 130 of the small nozzle 110 and the communication port 127 forming the opening of the floor nozzle 111 is positioned on the front side of the rear wall 124a at the rear portion of the suction portion 124. Therefore, the wind sucked by the suction portion 124 is immediately sucked into the opening 130 of the small nozzle 110 having a small opening area, so that there is a problem that the noise is high. In addition, since a rotating brush driven by a motor is provided to obtain dust collection performance, there is a problem that the mass becomes heavy and it is difficult to use.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and the suction tool for a vacuum cleaner that has a smooth flow, low noise, light weight, excellent operability and dust collection, and a vacuum cleaner including the same. The purpose is to provide.

  In order to solve the above-described conventional problems, a vacuum cleaner suction tool according to the present invention includes a first suction tool having a suction chamber having a suction port on a bottom surface, and a first suction tool that is attachable to and detachable from the first suction tool. A second suction tool having a function of sucking dust and having an opening at the front, a rotating brush that is rotatably provided in the suction chamber and is built into the main body of the vacuum cleaner, and scrapes dust on the surface to be cleaned; The first suction tool is provided with a vent hole communicating with the suction port, and a rear portion of the suction chamber is located behind the rear wall of the suction chamber. A certain distance is ensured between the opening of the tool and the suction chamber, and the intake air flows smoothly, so the intake sound is reduced and the noise can be reduced.

  The vacuum cleaner suction tool of the present invention has a smooth flow of intake air, low noise, light weight, and excellent operability and dust collection.

  According to a first aspect of the present invention, there is provided a first suction tool having a suction chamber having a suction port on a bottom surface, a function of detachably attaching to the first suction tool and sucking dust on a surface to be cleaned, and an opening at a front portion. A second suction tool, a rotary brush that is rotatably provided in the suction chamber and is built in the main body of the vacuum cleaner and sweeps up dust on the surface to be cleaned, and is provided in the first suction tool and communicates with the suction port. A vent is provided, and a matching portion between the vent and the opening is located behind the rear wall of the suction chamber, and a certain distance is provided between the opening of the second suction tool and the suction chamber. Since the intake air flows smoothly, the intake sound is reduced and the noise can be reduced.

  In the second aspect of the invention, the rotating brush is configured to rotate by suction air from an electric blower, and no separate parts such as a motor for driving the rotating brush are required, the first suction tool can be reduced in weight, and the carpet Dust collection performance can be improved because dust is scraped off with a rotating brush.

  3rd invention is set as the structure which made the 1st suction tool protrude forward from the whole and provided the elastic roller, and when the 1st suction tool is equipped with the 2nd suction tool, the 1st suction tool is the front. Even if it is pushed and moved, the elastic roller hits the wall or furniture first, so there is no worry about scratching, so it is easy to use.

  4th invention is equipped with the main body which incorporated the electric blower, and the suction tool for vacuum cleaners of any one of Claims 1-3, and is low in intake sound, low noise, and suction tool It is possible to provide a vacuum cleaner that is light in operation and excellent in dust collection performance.

  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. 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 FIGS. 2 and 4, 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, as shown in FIG. 2, the mating portion 19 between the first suction tool 11 and the second suction tool 10 is located behind the rear wall 24 a 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. 2, 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.

  Further, since the recess 18 for widening the gap with the floor surface is formed at the front edge portion of the suction port 23 of the first suction tool 11, the suction force of the second suction tool 10 works effectively. Dust such as rice grains can be collected efficiently.

  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 second suction tool 10 is detachably connected to the first suction tool 11 that is not provided with a motor, and is elastic from the front portion of the first suction tool 11. By attaching the flexible roller 12, 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 stably performed, and the first lighter mass can be used. Since the suction tool 11 can be provided, the usability is improved, and the roller 12 is elastic even if the first suction tool 11 is pushed forward and moved when the second suction tool 10 is mounted on the first suction tool 11. It is easy to use because it only hits walls and furniture, and there are no worries about scratching, and it is easy to use because it is made of a slippery material.

  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.

  In addition, the second suction tool 10 has a first opening 16 that forms a dust passage when the first suction tool 11 is attached to the second suction tool 10 and a second opening 15 that is separate from the first opening 16. The dust can be efficiently collected from the two openings when cleaning at 10.

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 suction tool for a vacuum cleaner according to the present invention has a smooth flow of intake air, low noise, light weight, and excellent operability and dust collection. It can also be applied to.

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 12 Roller 15 2nd opening 16 1st opening 18 Recessed part 19 Matching part 20 Rotating brush 23 Suction port 24 Suction chamber 24a Rear wall 27 Ventilation hole 35 brush body

Claims (4)

A first suction tool including a suction chamber having a suction port on a bottom surface; a second suction tool having a function of sucking dust on a surface to be cleaned and detachably attached to the first suction tool and having an opening at a front portion; A rotary brush that is rotatably provided in the suction chamber and sweeps up dust on the surface to be cleaned, and a vent hole that is provided in the first suction tool and communicates with the suction port. A vacuum cleaner suction tool in which a matching portion between the vent and the opening is located further rearward. The suction tool for a vacuum cleaner according to claim 1, wherein the rotary brush is rotated by suction air from an electric blower. The vacuum cleaner suction tool according to claim 1 or 2, wherein the first suction tool is provided with an elastic roller so as to protrude forward from all of the first suction tool. The vacuum cleaner provided with the main body which incorporated the electric blower, and the vacuum cleaner suction tool of any one of Claims 1-3.

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