JP2008253853A - Suction tool for floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction tool for the floor which can suck dust accumulated against a wall and so on efficiently. <P>SOLUTION: A suction tool body case 2 where a suction opening 6 is opened from a lower surface to at least one part of a front surface, a rotating brush 3 which is supported rotatably in the suction tool body case 2, and a cover 5 which blocks the front part of the suction opening 6 of the suction tool body case 2 are provided. The cover 5 is formed turnably between a lower turning position which blocks the front part of the suction opening 6 and an upper turning position which opens the front part of the suction opening 6. Also, the cover 5 is composed so that it turns from the lower turning position to the upper turning position by abutment on the wall surface and so on of the cover 5, while the rotating trajectory of a brush body 12a of the rotating brush 3 projects forward from an abutment member when turning to the upper turning position of the cover 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a floor suction tool for a vacuum cleaner, and more particularly to a floor suction tool capable of efficiently sucking dust accumulated at a wall or the like.

  Commonly used vacuum cleaner floor suction tools have a suction opening only on the underside of the suction tool body case, so there are obstacles that stand up, such as near the walls or near the feet of furniture. It was difficult to clean.

  Therefore, as a suction tool that can be cleaned near the wall, when the suction tool is pressed against a wall or the like, the flap or seal part provided at the lower front of the suction tool moves upward or rotates backward. Therefore, a suction tool having a structure capable of sucking dust at the wall has been proposed (see, for example, Patent Document 1 and Patent Document 2).

In addition, the cross-sectional shape in the direction orthogonal to the rotation axis of the rotating brush forms an arc shape having a diameter larger than the diameter of the rotation locus of the brush bristle tip of the rotating brush, and the rotating plate that opens and closes the front portion of the suction port is rotated. There is also a type in which the front surface of the suction port is opened and closed by manual operation so that the suction port body is rotatably supported around a rotation axis coaxial with the rotation axis of the brush (for example, Patent Documents). 3).
JP-A-8-317886 JP-A-8-206043 Japanese Utility Model Publication No. 3-949

  However, like the ones disclosed in Patent Document 1 and Patent Document 2 described above, even if the front lower portion of the suction tool is opened and suction is performed, the horizontal distance between the front wall of the suction tool and the suction port is not close. For this reason, it was not possible to obtain a sufficient cleaning ability against dust on the wall.

  Moreover, since what was disclosed by the said patent document 3 is a thing by manual operation, it is not what is convenient at all.

  On the other hand, what the applicant of the present application proposed in Japanese Patent Application No. 2001-289403 is that the suction port is opened from the lower surface of the suction tool main body case to at least a part of the front surface to constitute the front wall of the suction tool main body case. An upper rotation position in which the cover is attached to the suction tool main body case so as to be rotatable in the vertical direction, and the cover closes the front portion of the suction port at the lower rotation position and rotates in contact with the wall surface. It is comprised so that the front side part of a suction inlet may be open | released.

  However, the cover is made of synthetic resin, and is rotated upward while sliding so as to be rubbed when hitting the wall surface or furniture. There is a risk of attaching. In order to prevent this, for example, when a flexible member such as rubber is used on the surface of the cover, there is a risk that the rotational performance may deteriorate due to frictional resistance with the wall surface or the like.

  Therefore, the present invention has been made to solve such a problem, and can efficiently suck dust accumulated on the wall side, prevent damage to the wall surface and furniture, and smoothly. An object of the present invention is to provide a floor suction tool that can be rotated.

  In order to achieve the above object, a suction tool body case in which a suction port is opened from the lower surface to at least a part of the front surface, a rotating brush rotatably supported in the suction tool body case, and the suction tool body A cover that closes the front portion of the suction port of the case, and the cover rotates between a lower rotation position that closes the front portion of the suction port and an upper rotation position that opens the front portion of the suction port. The rotating brush is configured to be movable, and is configured to rotate from a lower rotation position to an upper rotation position by contact with a wall surface or the like of the cover, and at the time of rotation of the cover to the upper rotation position, the rotating brush The rotation locus of the brush body protrudes forward from the contact member.

  Preferably, the cover is formed with a contact portion with a wall surface or the like in the longitudinal direction of the cover, and a soft and slippery contact member is disposed on the contact portion with the wall surface.

  It is preferable to provide a fibrous member as the contact member.

  It is preferable to provide a raised cloth as the contact member.

  It is preferable to include an urging means for urging the cover in a direction of rotating downward.

  The cover is preferably configured to rotate in a direction in which it is housed inside the suction tool body case.

  According to the structure of Claim 1 of this invention, there exists an effect that the dust collected on the wall side etc. can be removed efficiently.

  According to the configuration of the second aspect of the present invention, it is possible to prevent the wall surface, furniture, and the like from being damaged, and to rotate smoothly. It also serves as a bumper that absorbs shock when the front side of the suction tool hits an obstacle.

  By providing a fibrous member, more specifically, a raised cloth, as the abutting member, the movement in the left-right direction when performing horizontal cleaning while abutting on the wall surface becomes smooth.

  By providing an urging means for urging the cover in the direction of rotating downward, the front portion of the suction port can be reliably closed even if some dust adheres to the rotating shaft of the cover.

  The cover is configured to rotate in the direction in which it is housed inside the suction tool body case, so that the height of the suction tool can be lowered compared to the case of rotating outward, and the height of the bottom of the bed, etc. Even when cleaning a low place, there is no problem that the cover does not open when it hits an obstacle, and the structure is strong against external force.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIGS. 1-10 is a figure which shows the structure and effect | action of one Embodiment of the suction tool for floors by this invention.

  The floor suction tool 1 shown in FIG. 1 to FIG. 10 is a horizontally long suction tool body case 2 in which a suction port 6 which is formed of an upper case 2a and a lower case 2b and is widely opened from the lower surface to the front surface is formed. A rotary brush 3 rotatably supported via bearings at both ends in the longitudinal direction in the suction tool body case 2, communicates with the suction port 6 on the rear surface side of the suction tool body case 2, and is rotatable up and down and left and right. And a cover 5 that configures the front wall of the suction tool main body case 2 and opens and closes the front portion 6b of the suction port 6, and the bend 4 is connected to an extension pipe or hose (not shown). Connected to the main body of the vacuum cleaner.

  As shown in FIG. 4 and the like, the cover 5 has a substantially U-shaped cross-section, and its upper side is formed in an arc shape. A roller 7 supported rotatably by 7a is attached. The outside of the bearing portion 7a is inclined forward, and the floor suction tool 1 can be smoothly moved even when the outside of the bearing portion 7a comes into contact with an obstacle during cleaning.

  As shown in FIG. 5, the roller 7 is formed by covering the outer peripheral surface of a core body 7c having a rotating shaft 7b with a raised cloth 7d, which is a fibrous member, as a soft and slippery contact member. Yes.

  As shown in FIGS. 6 and 7, arm portions 8 are integrally formed on both ends of the cover 5 configured as described above, and the arm portions 8 on both sides are provided on both inner sides of the suction tool body case 2. The rotating shaft 9 is supported so as to be rotatable in the vertical direction. The positional relationship between the rotating shaft 9 and the roller 7 is such that when the roller 7 at the forefront of the cover 5 is pressed against the wall surface W or the like as shown in FIG. The roller 7 is set to be positioned above the rotation shaft 9 that is the rotation center of the cover 5 so that the cover 5 rotates upward while rotating clockwise.

  Further, when the roller 7 comes into contact with the wall surface W or the like and the cover 5 rotates upward, the suction tool main body case 2 is configured to rotate in a direction of being housed inside the upper case 2a.

  Further, a torsion spring 9a is attached to the rotation shaft 9 of the cover 5 as an urging means for urging the cover 5 in the direction of rotating downward.

  Further, the rotating brush 3 is formed with four grooves 11 spirally at intervals of 90 ° in the longitudinal direction of the outer periphery of the core body 10, and a pair of brush bodies 12 a and a rubber blade are respectively formed in these grooves 11. 12b are mounted alternately. The brush body 12a is formed longer than the rubber blade 12b, and the rotating brush 3 and the cover 5 are arranged such that the rotation locus at the tip of the brush body 12a protrudes from the roller 7 when the cover 5 shown in FIG. The positional relationship is set.

  Although not shown, the rotary brush 3 is configured to be rotationally driven by transmitting a driving force of an electric motor built in the suction tool main body case 2 via a transmission belt or the like.

  In this embodiment, since the roller 7 provided on the cover 5 also functions as a bumper on the front side of the suction tool body case 2, only the side bumpers 14 on both sides of the suction tool body case 2 are used as the original bumper. Is provided. A floor brush 15 is provided along the longitudinal direction of the suction port 6 on the rear side of the lower portion 6 a of the suction port 6.

  The floor suction tool 1 of the present embodiment configured as described above is configured so that the cover 5 has a rotating shaft as shown in FIG. 4 when cleaning a normal floor surface (flooring floor, tatami mat, carpet, etc.). Since the torsion spring 9a provided at 9 is lowered to the downward rotation position, the front portion 6b of the suction port 6 is closed by the cover 5, and only the lower portion 6a of the suction port 6 is opened. . Therefore, since no loss of air volume occurs, a desired air volume can be obtained at the lower portion 6a of the suction port 6, and the scraping effect of the rotating brush 3 can be added, so that the floor surface can be cleaned efficiently.

  On the other hand, as shown in FIG. 8, when cleaning the wall, the suction tool 1 is pressed against the wall surface W. As a result, first, the roller 5 attached to the cover 5 abuts against the wall surface W and rotates as indicated by the arrow while the cover 5 is lifted upward. It rotates to the direction accommodated inside case 2a, and as shown in FIG. 9, the front side part 6b of the suction inlet 6 is open | released.

  In the state of FIG. 9, the suction port 6 can be brought very close to the wall, and a sufficient cleaning ability can be obtained against dust on the wall. Moreover, dust on the wall can be sucked from both the lower part 6a and the front part 6b of the suction port 6, and the rotating brush 3 scrapes away the dust near the wall by approaching or contacting the wall surface W. Dust can be sucked efficiently.

  In the present embodiment, the roller 7 whose outer peripheral surface is covered with the raised cloth 7d, not the cover 5 itself, comes into contact with the wall surface W, so that damage to the wall surface W, furniture, etc. can be reliably prevented and extremely smooth. The cover 5 can be rotated. Moreover, since it is the raised cloth 7d, when the roller 7 is in contact with the wall surface W, the left and right movements in the horizontal direction are smooth.

  Moreover, since this roller 7 is provided in the front-end | tip part at the front side of the suction tool main body case 2, it also plays the role of the bumper of shock absorption when the front side hits an obstacle.

  Furthermore, since the cover 5 rotates in the direction in which it is housed inside the suction tool body case 2, the height of the suction tool 1 can be reduced as compared with the case where the cover 5 rotates outside, and the height of the bottom of the bed, etc. Even when cleaning a low-pitch area, the cover 5 does not open when it hits an obstacle, and the structure is strong against external forces.

  The front-rear positional relationship between the roller 7 and the brush body 12a and the rubber blade 12b of the rotary brush 3 with the cover 5 opened is as shown in FIG. The rotation trajectory of the tip of 12a protrudes from the roller 7 and comes into contact with the wall surface W, so that the dust on the wall surface W or the wall can be more effectively removed. Since the rubber blade 12b generates an abnormal noise when it hits the wall surface, the rubber blade 12b is in a positional relationship that does not contact the wall surface W even in the above state.

  When returning to the normal floor cleaning after finishing the wall cleaning described above, the cover 5 is rotated downward by the urging force of the torsion spring 9a only by moving the suction tool 1 away from the wall surface W. Since the front portion 6b is closed, the normal floor surface can be cleaned again.

  The cover 5 can be rotated downward by its own weight alone to close the front side portion 6b of the suction port 6. However, as in the present embodiment, an urging force such as a torsion spring 9a that rotates the cover 5 downward is provided. By providing the means, the front portion 6b can be reliably closed even if some dust adheres to the rotating shaft 9 of the cover 5.

  In the above-described embodiment, the one provided with one roller 7 in the longitudinal direction of the cover 5 is shown. However, the present invention is not limited to this, for example, on both sides in the longitudinal direction of the cover 5 as shown in FIG. One short roller 71 and 72 may be provided.

  Moreover, in the said embodiment, although the case where this invention was applied to what rotates the rotating brush 3 with an electric motor (power brush) was shown, this invention is not restricted to this, The rubber | gum of a turbine brush or the rotating brush 3 The present invention can also be applied to a blade 12b or the like that directly receives suction air and rotates. In this case, for example, as shown in FIGS. 12 and 13, notches 5 a are provided on both sides and the center of the lower portion of the cover 5, and the suction air sucked from there as shown by arrows in FIG. The rotating brush 3 can be rotationally driven by receiving at. Even when the roller 7 is in contact with the wall surface near the wall and the cover 5 is opened, the outer peripheral surface of the roller 7 is composed of the raised cloth 7d and can be ventilated, and the air path of the suction air from both sides However, if the rollers 71 and 72 are provided on both sides of the cover 5 as shown in FIG. 11, sufficient suction air can be sucked between them. Therefore, the rotational force of the rotary brush 3 can be further increased.

  Moreover, in the said embodiment, although shown about the case where the roller 7 was provided in the cover 5, this invention is not this, For example, with the wall surface W in the cover 5 formed as shown to FIG. 14, FIG. You may make it cover a contact part with the raised cloth 7d similar to the said embodiment.

  Moreover, in the said embodiment, when it was set as the structure rotated in the direction accommodated inside the suction tool main body case 2 when the cover 5 contact | abuts to the wall surface W etc., it was set as the structure which this invention is not restricted to this, As shown in FIGS. 16 and 17, even if the suction tool main body case 2 rotates to the outside of the upper case 2 a, the contact portion of the cover 5 with the wall surface W is covered with a raised cloth 7 d similar to the above embodiment. By doing so, the intended object of the present invention can be achieved.

The top view of the suction tool for floors concerning one Embodiment of this invention. Similarly, front view. Similarly, side view. Similarly, the longitudinal cross-sectional view of a center part. The longitudinal cross-sectional perspective view of the roller single-piece | unit used by the said embodiment. The top view of the principal part which removed the upper case and was seen. Similarly, the principal part sectional side view. The principal part longitudinal cross-sectional view which shows the middle of a cover opening. Similarly, the longitudinal cross-sectional view which shows the state which the cover opened. Similarly, the principal part longitudinal cross-sectional view which shows an effect | action of the state which the cover opened. The upper side figure of the suction tool for floors concerning other embodiment of this invention. The front view of the suction tool for floors concerning other embodiment of this invention. Similarly, the longitudinal cross-sectional view of a center part. The longitudinal cross-sectional view of the center part of the suction tool for floors concerning other embodiment of this invention. Similarly, the longitudinal cross-sectional view which shows the state which the cover opened. The longitudinal cross-sectional view of the center part of the suction tool for floors concerning other embodiment of this invention. Similarly, the longitudinal cross-sectional view which shows the state which the cover opened.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor suction tool 2 Suction tool main body case 3 Rotating brush 5 Cover 6 Suction port 6a Lower part of suction port 6b Front part of suction port 7 Roller 7d Brushed cloth 9 Rotating shaft 9a Torsion spring 12a Brush body 12b Rubber blade

Claims (6)

A suction tool main body case in which the suction port is opened from the lower surface to at least a part of the front surface, a rotating brush rotatably supported in the suction tool main body case, and a front portion of the suction port of the suction tool main body case are closed. And a cover to
The cover is formed so as to be rotatable between a downward rotation position that closes the front portion of the suction port and an upper rotation position that opens the front portion of the suction port, and contacts the wall surface of the cover. And configured to rotate from the lower rotation position to the upper rotation position,
A floor suction tool characterized in that when the cover is turned to the upper turning position, the rotation locus of the brush body of the rotating brush protrudes forward from the contact member.   2. The cover according to claim 1, wherein a contact portion with a wall surface or the like is formed in a longitudinal direction of the cover, and a soft and slipper contact member is disposed on the contact portion with the wall surface. Floor suction tool.   The floor suction tool according to claim 1, further comprising a fibrous member as the contact member.   The floor suction tool according to claim 1, further comprising a raised cloth as the contact member.   The floor suction tool according to claim 1, further comprising biasing means for biasing the cover in a direction of rotating downward.   The floor suction tool according to claim 1, wherein the cover is configured to rotate in a direction in which the cover is housed inside the suction tool body case.

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