JP2016000064A - Suction tool for vacuum cleaner and vacuum cleaner using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure that dust can be removed from a surface to be cleaned even at an end part of a suction tool body in an inexpensive structure while an arrangement space for a belt, etc. is secured in a suction tool for a vacuum cleaner that comprises a rotary brush that is rotationally driven by an electric motor.SOLUTION: A suction tool for a vacuum cleaner comprises: a suction tool body 1 including a suction port 10; a rotary brush 11 that is rotationally driven by an electric motor, a belt, etc.; a brush cover 17 that is provided at a bottom surface part of the suction tool body 1 and constitutes the suction port 10; an outer wall part 18 that surrounds the entire circumference of the suction port 10; a lid part 16 that is included in an end part of the brush cover 17 and protects a belt part 12; and a groove 19 that is formed between the inside of the outer wall part 18 and the lid part 16. The groove 19 forms a space passage through which air flows between itself and a surface to be cleaned, and dust can be removed from the surface to be cleaned even at an end part of the suction tool body 1 by passing a sucking air flow through the space passage.

Description

  The present invention relates to a vacuum cleaner suction tool used in a vacuum cleaner.

  2. Description of the Related Art Conventional vacuum cleaner suction tools have a rotary brush driven by an electric motor or the like to suck dust from a suction port facing the surface to be cleaned. This type of vacuum cleaner suction tool is a rotary brush. Since a space for placing a belt or pulley to transmit power to the suction port is required at the end of the suction port, the suction port cannot be provided in the entire width direction of the vacuum cleaner suction tool. It was difficult to remove the dust on the surface to be cleaned at the end of.

  Then, there exist some which remove the dust of the edge part of a suction inlet by arrange | positioning a fixed brush in the both ends of the lower surface of a suction tool (for example, refer patent document 1).

JP 2011-36445 A

  However, in the conventional configuration, the dust at the end of the suction port is not sucked by suction force, so the dust removal performance is low, and the number of parts increases due to the placement of the fixed brush, which increases the cost. There was a problem of becoming.

  The present invention solves the above-mentioned conventional problems, and in a vacuum cleaner suction tool provided with a rotating brush rotated by a power source such as an electric motor, the suction tool main body while securing a space for arranging a belt, a pulley and the like The purpose of the present invention is to provide a vacuum cleaner suction tool with improved cleaning efficiency so that the suction port can be extended to the end of the width direction and the dust on the surface to be cleaned can be removed at low cost to the end of the suction tool body. And

  In order to solve the above-described conventional problems, the vacuum cleaner suction tool of the present invention is provided rotatably with the suction tool body having a suction port opened facing the surface to be cleaned, and the suction tool body, A rotating brush that scrapes dust on the surface to be cleaned from the suction port, an electric motor that is provided inside the suction tool main body and that drives the rotating brush, and a belt portion that transmits the driving force of the electric motor to the rotating brush; A brush cover that is detachably provided on the bottom surface of the suction tool main body and that forms the suction port, an outer wall portion that is provided on the brush cover and surrounds the entire circumference of the suction port, and an end portion of the brush cover A lid portion that protects the belt portion from the outside, and a groove formed between the inside of the outer wall portion and the lid portion on the surface to be cleaned, and between the surface to be cleaned by the groove. A space passage where air flows through It is.

  As a result, the suction airflow flows through the space passage formed from the groove, so that dust on the surface to be cleaned existing below the lid can be sucked without adding parts, and the width direction of the suction tool body The suction port can be extended to the end of the suction tool, and the dust on the surface to be cleaned can be removed to the end of the suction tool body.

The suction tool for a vacuum cleaner of the present invention, which is driven by an electric motor or the like, secures an arrangement space for a belt, a pulley, etc. by arranging a groove in the lid portion of the brush cover that protects the belt portion and flowing a suction airflow. However, it is possible to realize a vacuum cleaner suction tool that can remove dust on the surface to be cleaned up to the suction port end of the suction tool at low cost.

The external appearance front view of the vacuum cleaner provided with the vacuum cleaner suction tool in Embodiment 1 of this invention The top view which shows the state which removed the brush cover from the suction tool for vacuum cleaners The top view which shows the state which mounted | wore the vacuum cleaner suction tool with the brush cover The top view which looked at the brush cover of the vacuum cleaner suction tool from the back side The A section enlarged view of FIG. 3 explaining the groove shape of the cover part in the brush cover of the vacuum cleaner suction tool. Sectional drawing seen from the BB line side of FIG. 3 explaining the cross-sectional shape of the cover part in the brush cover of the suction tool for vacuum cleaners Sectional drawing seen from the CC line side of FIG. 3 explaining the cross-sectional shape of the cover part in the brush cover of the suction tool for vacuum cleaners

  A first invention includes a suction tool main body having a suction port opened to face a surface to be cleaned, a rotary brush that is rotatably provided in the suction tool main body, and scrapes dust on the surface to be cleaned from the suction port; An electric motor that is provided inside the suction tool main body, drives the rotary brush, a belt portion that transmits a driving force of the electric motor to the rotary brush, and is detachably provided on a bottom surface portion of the suction tool main body, A brush cover that constitutes a suction port; an outer wall portion that is provided on the brush cover and surrounds the entire circumference of the suction port; a lid portion that is provided at an end of the brush cover and protects the belt portion from the outside; A groove formed between the inside of the outer wall portion and the lid portion on the cleaning surface side, and the groove is formed by forming a space passage through which air flows between the surface to be cleaned. Suction airflow flows through the space passage As a result, dust on the surface to be cleaned existing below the lid can be sucked without adding parts, and the suction port can be extended to the widthwise end of the suction tool body. Dust on the surface to be cleaned can be removed up to the end.

  In the second invention, in particular, the lid portion of the first invention is formed in an arc shape in accordance with the shape of the belt portion, and the gap between the lid portion and the belt portion is made small so that the space of the groove is widened. As a result, the groove can be widened without interfering with the belt portion, and the suction airflow into the groove can be more easily flown, so that cleaning efficiency can be further increased.

  In particular, the third invention allows the vacuum cleaner suction tool according to the first or second invention to communicate with a vacuum cleaner main body incorporating an electric blower that generates suction air, so that the wall corner of the surface to be cleaned can be obtained. It is possible to provide an electric vacuum cleaner excellent in dust collection performance capable of collecting dust.

  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 external front view of a vacuum cleaner provided with a vacuum cleaner suction tool according to a first embodiment of the present invention.

  As shown in FIG. 1, the vacuum cleaner body 3 includes an electric blower (not shown) for generating a suction airflow, and includes a dust collection chamber 2, and a vacuum cleaner suction is provided below the vacuum cleaner body 3. A tool (hereinafter referred to as a suction tool main body) 1 is disposed.

  2 is a plan view showing a state in which the brush cover 17 is removed from the suction tool body 1, FIG. 3 is a partially enlarged view of the lid portion 16 of the brush cover 17, and FIG. 4 shows the brush cover 17 on the back side. FIG. 5 is a partially enlarged view of the lid portion 16 of the brush cover 17.

  As shown in FIGS. 2 and 3, the suction tool main body 1 has a suction port 10 for sucking dust, and drives the rotary brush 11 and the rotary brush 11 having a brush 11 a for scraping dust inside. And a belt portion 12 for transmitting the driving force from the motor to the rotating brush 11.

  On the bottom surface side of the suction tool main body 1, a brush cover 17 that can be detachably attached is provided so that maintenance such as entanglement of dust can be performed by removing the rotating brush 11.

  As shown in FIG. 2, the brush cover 17 is attached to the rotating brush 11 exposed on the bottom surface side of the suction tool main body 1 so as to cover from above, so that the state after the attachment shown in FIG. 3 is obtained.

  As shown in FIG. 3, the brush cover 17 forms a suction port 10 of the suction tool body 1, and an outer wall portion 18 is disposed so as to surround the entire circumference of the suction port 10, and further, the outer wall portion 18. The surface on the side facing the surface to be cleaned is a flat surface having the same height all around.

  That is, as shown in FIG. 5, the outer wall portion 18 a on the front side of the suction tool body 1, the outer wall portion 18 c on the rear side of the suction tool body 1, and the outer wall portions 18 b on the left and right sides of the suction tool body 1 are the same height. The inside surrounded by the outer wall portion 18 having a plane connected at the same height constitutes the suction port 10 of the suction tool body 1.

  As shown in FIGS. 2 and 3, a lid 16 is provided at the right end portion of the brush cover 17 as a portion for protecting the belt portion 12 from being touched from the outside.

  As shown in FIG. 4 when the brush cover 17 is viewed from the inside, a wall portion 15 that partitions the boundary between the rotating brush 11 side and the belt portion 12 side is provided inside the back surface of the lid portion 16. .

  Further, as shown in FIG. 3, a front roller 20 is provided in front of the brush cover 17, and a rear roller 21 is provided in the rear of the bottom side of the suction tool main body 1, so that the suction tool main body 1 is cleaned. The front roller 20 and the rear roller 21 are in contact with the surface to be cleaned when placed on the surface, so that the gap between the bottom surface of the suction tool body 1 and the surface to be cleaned is minimized, i.e., the surface to be cleaned. The gap between the flat surface of the outer wall portion 18 and the surface to be cleaned is a predetermined gap. The predetermined gap is set to 0.5 mm to 1.5 mm so that the bottom surface of the suction tool main body 1 does not come into contact with the surface to be cleaned.

  Next, the groove 19 provided between the lid portion 16 and the outer wall portion 18 will be described with reference to FIGS. 5, 6, and 7.

  5 is a partially enlarged view of the lid portion 16 of the brush cover 17, FIG. 6 is a cross-sectional view viewed from the line BB in FIG. 4 for explaining the cross-sectional shape of the lid portion 16, and FIG. FIG. 5 is a cross-sectional view illustrating the cross-sectional shape of the lid portion 16 as viewed from the CC line side in FIG. 4.

  As shown in FIGS. 5, 6, and 7, a groove 19 is formed between the lid portion 16 and the outer wall portion 18, and the groove 19 includes the groove 19 a and the groove 19 c shown in the cross-sectional view of FIG. The groove 19b shown in the cross-sectional view of FIG. 7 is connected in a substantially U shape. And the depth of this groove | channel 19, ie, the position of the bottom part of the groove | channel 19, is 3 mm-8 mm in a height direction (to-be-cleaned surface and a perpendicular direction) on the basis of the surface of the outer wall part 18 facing the surface to be cleaned. It is set between.

  In addition, as shown in the cross-sectional view of FIG. 6, the cross-sectional shape of the lid portion 16 is configured to match the arc of the belt portion 12 and is formed into an arc shape with a minimum gap setting, so that the arc surface of the lid portion 16 is configured. 16a, a space is formed between the circular arc surface 16c and the vertical surface of the outer wall portion 18, and this space is a groove 19a and a groove 19c.

  Further, as shown in the cross-sectional view of FIG. 7, by providing an inclined surface 16 b in the direction away from the surface to be cleaned in the lid portion 16 so that a space is formed in the vicinity of the vertical surface of the outer wall portion 18 b of the lid portion 16. A groove 19b is formed.

  About the vacuum cleaner suction tool in this Embodiment comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the operation of the vacuum cleaner is started with the suction tool main body 1 placed on the surface to be cleaned, the rotating brush 11 is rotated by the drive of an electric motor (not shown) in the suction tool main body 1 and is swept up by this. The dust is sucked into the dust collecting chamber 2 and collected by the suction force of an electric blower (not shown).

  At that time, the suction airflow flowing into the suction tool main body 1 flows into the suction port 10 through the predetermined gap between the outer wall 18 at the bottom of the suction tool main body 1 and the surface to be cleaned.

  The suction airflow that has entered the suction port 10 passes through the groove 19 provided in the lid portion 16 and flows toward the rotating brush 11. Therefore, the suction airflow flowing through the groove 19 acts to cause dust on the surface to be cleaned existing below the lid portion 16 to flow toward the rotary brush 11, and the lid portion 16 also functions as the suction port 10. Can do.

  That is, the groove 19 formed by connecting the groove 19a, the groove 19b, and the groove 19c provided in the lid portion 16 in a substantially U-shape forms a space passage through which air flows between the surface to be cleaned, By the suction airflow flowing in the space passage, the dust on the surface to be cleaned existing below the lid portion 16 can flow to the rotating brush 11 side.

  Thereby, the suction inlet 10 can be extended to the edge part of the width direction of the suction tool main body 1, and it becomes possible to remove the dust of a to-be-cleaned surface to the edge part of the suction tool main body 1. FIG.

  Moreover, the position of the bottom part of this groove | channel 19 is set between 3 mm-8 mm in a height direction (to-be-cleaned surface and a perpendicular direction) on the basis of the surface of the outer wall part 18 facing the surface to be cleaned. The dust on the surface to be cleaned existing under the lid 16 can be effectively flowed to the rotating brush 11 side.

  Further, as shown in the cross-sectional view of FIG. 6, the cover 16 has a cross-sectional shape that matches the arc of the belt portion 12 and has arc-shaped arc surfaces 16 a and 16 c that have a minimum gap setting. By doing so, since the space of the groove 19a and the groove 19c can be expanded without causing the inner surface of the lid portion 16 to interfere with the belt portion 12, the suction airflow flowing through the groove 19a and the groove 19c can be further increased.

  As described above, the vacuum cleaner suction tool and the vacuum cleaner using the vacuum cleaner according to the present invention can remove dust on the surface to be cleaned up to the end of the suction tool body with an inexpensive configuration. Since the suction tool for a machine can be provided, it can be suitably applied to the field and application of a household vacuum cleaner and an industrial vacuum cleaner.

DESCRIPTION OF SYMBOLS 1 Suction tool main body 2 Dust collection chamber 3 Vacuum cleaner main body 10 Suction port 11 Rotating brush 12 Belt part 15 Wall part 16 Lid part 16a, 16c Arc surface 16b Inclined surface 17 Brush cover 18 Outer wall part 19 Groove

Claims (3)

A suction tool body having a suction port that opens opposite the surface to be cleaned;
A rotating brush that is rotatably provided in the suction tool body and scrapes dust on the surface to be cleaned from the suction port;
An electric motor that is provided inside the suction tool body and drives the rotating brush;
A belt portion for transmitting the driving force of the electric motor to the rotating brush;
A brush cover that is detachably provided on the bottom surface portion of the suction tool body, and that is provided on the brush cover and that surrounds the entire circumference of the suction port,
A lid portion provided at an end of the brush cover and protecting the belt portion from the outside;
A groove formed between the inner side of the outer wall portion and the lid portion on the surface to be cleaned;
The vacuum cleaner suction tool in which the groove forms a space passage through which air flows with the surface to be cleaned, and a suction airflow flows through the space passage. The suction tool for a vacuum cleaner according to claim 1, wherein the lid portion is formed in an arc shape in accordance with the shape of the belt portion, and a space between the lid portion and the belt portion is reduced to widen a groove space. The vacuum cleaner which made the suction tool for vacuum cleaners of Claim 1 or 2 connect with the vacuum cleaner main body which incorporated the electric blower which emits suction | inhalation wind.

Images