JP2013031508A - Suction tool for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction tool for a vacuum cleaner which can facilitate quick engagement between a dust removing claw part of a dust remover and a groove part of a rotary brush and smoothly insert the rotary brush when inserting the rotary brush into a case part while engaging the rotary brush with the dust remover.SOLUTION: The suction tool for a vacuum cleaner includes: the rotary brush having a cylindrical member formed with the plurality of helical groove parts in the periphery thereof; the case part provided with a suction port on a bottom surface thereof, rotatably storing the rotary brush in the inside, and attachable and detachable by moving the rotary brush in an axial direction through an opening on one side surface; a ring-shaped dust removing tool rotatably provided in the same axis as the rotary brush inside the suction port; the dust removing claw part provided in an inner periphery of the dust removing tool and projecting opposite to the opening side for engaging with the groove part; and a tapered rib with a shape of gradually narrowing toward the opening smoothly and continuously provided with the dust removing claw part in the inner periphery of the dust removing tool.

Description

  The present invention relates to a vacuum cleaner suction tool.

  In a vacuum cleaner suction tool that has a rotating brush inside, remove the rotating brush from the suction tool so that thread-like debris such as lint and hair entangled with the rotating brush can be easily removed. Some have a rotating brush attaching / detaching mechanism. As such a rotating brush attaching / detaching mechanism, a joint mechanism for transmitting a rotational driving force to one end in the axial direction of the rotating brush, a bearing portion for rotatably supporting the rotating brush on the other end side of the rotating brush, It is known that each has a rotating brush that can be attached and detached by opening and closing the bearing pressing member in the engaging portion of the bearing portion with the suction tool (for example, Patent Literature 1 and Patent Literature 1). 2).

  Further, as a conventional rotary brush attaching / detaching mechanism, a coupling mechanism for transmitting a rotational driving force to one end in the axial direction of the rotary brush is provided, and a bearing portion that rotatably supports the other end of the rotary brush is provided as a suction tool. It is also known in the prior art that it can be detachably provided on the side surface and the rotary brush can be pulled out along the axial direction to the other end side in the axial direction.

  And in the conventional rotating brush attaching / detaching mechanism configured so that the rotating brush can be pulled out in the axial direction, there is known one provided with a ring-shaped dust removing tool 10 as shown in FIG. 21, for example. . The dust removing tool 10 is rotatably provided in an opening on the side of the case part of the suction tool for pulling out the rotating brush, and engages with a plurality of spiral grooves formed around the rotating brush. It has a dust removing claw portion 10a. The dust removing claw portion 10a protrudes in a direction opposite to the direction in which the rotating brush is pulled out, and can remove thread-like debris entangled with the rotating brush when the rotating brush is pulled out.

Japanese Patent No. 3007759 Japanese Patent No. 4253670

  In the conventional vacuum cleaner suction tool having the dust removal tool as shown in FIG. 21, the dust removal claw part of the dust removal tool is rotated when the rotary brush is inserted into the case part of the suction tool. It must be engaged with the groove of the brush. However, the dust removing tool and the rotating brush have an axisymmetric shape, and it is not easy to confirm whether the position of the dust removing claw part of the dust removing tool and the position of the groove part of the rotating brush match at a glance. There exists a subject that the substantially flat part of a dust removal tool and the insertion end surface of a rotating brush will surface-contact, and the smooth insertion of a rotating brush will be prevented.

  The present invention has been made to solve such a problem. When the rotary brush is inserted into the case portion while being engaged with the dust remover, the dust removal claw portion of the dust remover and the groove portion of the rotary brush are provided. It is possible to obtain a vacuum cleaner suction tool that can be promptly engaged with and can be smoothly inserted.

  In the vacuum cleaner suction tool according to the present invention, a cylindrical member having a plurality of spiral grooves formed in the periphery thereof and a cleaning body provided in a spiral manner between the groove portions of the cylindrical member. The rotary brush has a suction port on the bottom surface, accommodates the rotary brush in a rotatable manner, and is attached and detached by moving the rotary brush in the axial direction through an opening provided on one side surface thereof. A ring-shaped dust removing tool provided in the suction port so as to be rotatable about the same axis as the rotating brush, and provided on the inner periphery of the dust removing tool, opposite to the opening. A dust removal claw portion that protrudes to the side and engages with the groove portion, and is provided smoothly and continuously with the dust removal claw portion on the inner periphery of the dust removal tool, and gradually toward the opening. Thinning tape A configuration with a tapered rib over shape.

  In the vacuum cleaner suction tool according to the present invention, when the rotary brush is inserted into the case portion while being engaged with the dust remover, the dust removal claw portion of the dust remover and the groove portion of the rotary brush are quickly engaged. The effect is that it can be inserted smoothly.

It is a figure which shows the whole structure of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view of the suction tool main body which concerns on Embodiment 1 of this invention. It is a side view of the suction tool main body which concerns on Embodiment 1 of this invention. It is side surface sectional drawing of the suction tool main body which concerns on Embodiment 1 of this invention. It is front sectional drawing of the suction tool main body which concerns on Embodiment 1 of this invention. It is a bottom view of the suction tool main body which concerns on Embodiment 1 of this invention. It is a bottom view which shows the state which removed the rotating brush from the suction tool main body which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state which removed the rotating brush from the suction tool main body which concerns on Embodiment 1 of this invention. It is the fragmentary sectional view which expanded the principal part of the state which removed the rotating brush from the suction tool main body which concerns on Embodiment 1 of this invention. It is the perspective view which looked at the suction tool main body which removed the rotary brush which concerns on Embodiment 1 of this invention from the side back. It is a perspective view of the rotating brush and dust removal tool which concern on Embodiment 1 of this invention. It is sectional drawing of the rotating brush and dust removal tool which concern on Embodiment 1 of this invention. It is a perspective view which shows the dust removal tool engaged with the rotating brush and rotating brush which concern on Embodiment 1 of this invention. It is the fragmentary sectional view which expanded the principal part of the state just before engaging a rotating brush with the dust removal tool which concerns on Embodiment 1 of this invention. It is a perspective view of the dust removal tool which concerns on Embodiment 1 of this invention. It is a perspective sectional view of the dust remover according to Embodiment 1 of the present invention. It is a perspective view of the attachment / detachment opening side component which comprises the dust removal tool which concerns on Embodiment 1 of this invention. It is a perspective view of the dust removal nail | claw part side components which comprise the dust removal tool which concerns on Embodiment 1 of this invention. It is the arrow line view seen from the direction which the arrow A in FIG. 17 concerning Embodiment 1 of this invention shows. It is the arrow line view seen from the direction which the arrow B in FIG. 17 concerning Embodiment 1 of this invention shows. It is a perspective view of the conventional dust removal tool.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 to 20 relate to Embodiment 1 of the present invention. FIG. 1 is a diagram showing the overall configuration of the vacuum cleaner, FIG. 2 is a perspective view of the suction tool body, and FIG. 3 is a side view of the suction tool body. 4 is a side sectional view of the suction tool body, FIG. 5 is a front sectional view of the suction tool body, FIG. 6 is a bottom view of the suction tool body, and FIG. 7 is a bottom view showing a state where the rotary brush is removed from the suction tool body. 8 is a perspective view showing a state where the rotary brush is removed from the suction tool body, FIG. 9 is a partial cross-sectional view showing an enlarged main part in a state where the rotary brush is removed from the suction tool body, and FIG. FIG. 11 is a perspective view of the rotating brush and the dust removing tool, FIG. 12 is a sectional view of the rotating brush and the dust removing tool, and FIG. 13 is engaged with the rotating brush and the rotating brush. FIG. 14 is a perspective view showing the dust removing tool, and FIG. FIG. 15 is a perspective view of the dust removing tool, FIG. 16 is a perspective sectional view of the dust removing tool, and FIG. 17 is an insertion opening side that constitutes the dust removing tool. FIG. 18 is a perspective view of the dust removing claw portion side component constituting the dust removing tool, FIG. 19 is a perspective view as seen from the direction indicated by the arrow A in FIG. 17, and FIG. 20 is a perspective view of FIG. It is an arrow view seen from the direction which arrow B shows.

  In FIG. 1, 1 is a suction tool main body. On the bottom surface of the suction tool main body 1, a suction port 1a is provided for sucking air (dust-containing air) containing dust and dust on the surface to be cleaned such as the floor surface. One end of a hollow cylindrical suction pipe 2 is connected to the suction tool body 1. The other end of the suction pipe 2 is connected to one end of a flexible bellows-like hose 3 via a connection pipe that is bent in the middle.

  The other end of the hose 3 is connected to the cleaner body 4. In the cleaner body 4, there is provided a dust collecting portion 4 a that captures and collects dust (dust) in the dust-containing air that has flowed into the interior from the outside of the cleaner body 4. And from the suction inlet 1a of the suction tool main body 1 to the dust collecting part 4a of the cleaner main body 4 is connected via the suction pipe 2 and the hose 3, and the suction tool main body 1, the suction pipe 2 and the hose 3 are included. A suction path for allowing dust air to flow from the outside to the inside of the cleaner body 4 is configured.

  The vacuum cleaner body 4 includes an electric blower 4b. This electric blower 4b is for driving a suction operation for sucking dust-containing air from the suction port 1a of the suction tool body 1 to the dust collecting part 4a of the cleaner body 4 via the suction pipe 2 and the hose 3. It is. On the other end side of the suction pipe 2, there is provided a grip portion 5 in which an operation switch for controlling the operation of the cleaner body 4 is arranged. The user of the electric vacuum cleaner pulls the vacuum cleaner body 4 by holding the grip portion 5 in use.

  2 to 6 show the suction tool main body 1. The suction tool main body 1 includes a case portion 6 having a suction port 1 a provided on the bottom surface, and an elbow joint 7 connected to the rear portion of the case portion 6. The suction tool main body 1 is detachably connected to the suction pipe 2 via an elbow joint 7. The elbow joint 7 is attached to the case portion so as to be able to tilt at a predetermined angle in the vertical direction, and further has a structure that is rotatable about an axis orthogonal to the tilting axis. ing.

  Further, a rotating brush 8 for scraping dust on the surface to be cleaned is rotatably provided near the front side inside the case portion 6 of the suction tool body 1 so as to face the suction port 1a. The rotation of the rotary brush 8 is driven by a motor (not shown) built in the case unit 6. The rotation of the motor is transmitted to the rotating brush 8 through a joint mechanism 9 provided on one side of the case 6.

  On the other left and right sides of the case portion 6, a rotary brush attaching / detaching opening 6 a for attaching and detaching the rotating brush 8 from the case portion 6 is provided. By passing the rotating brush 8 through the opening 6a for attaching / detaching the rotating brush, the rotating brush 8 can be inserted into and removed from the case portion 6 in the axial direction.

  The attachment / detachment of the rotating brush 8 will be described with reference to FIGS. First, in a state where the rotating brush 8 is mounted on the case portion 6, one end of the rotating brush 8 in the axial direction is engaged with the joint mechanism 9 and is pivotally supported. The other end of the rotating brush 8 in the axial direction is pivotally supported by a rotating brush attaching / detaching portion 8a. The rotating brush attaching / detaching portion 8a is engaged with and held by the rotating brush attaching / detaching opening 6a.

  In a state where the rotary brush 8 is attached to the case portion 6, the rotary brush attaching / detaching portion 8a is exposed to the side surface of the case portion 6 at the rotating brush attaching / detaching opening 6a. By performing the operation, the lock is released and the rotary brush 8 can be removed. Then, the rotating brush 8 can be removed from the case portion 6 by pulling out the rotating brush 8 in the rotation axis direction.

  Conversely, the rotating brush 8 is inserted into the rotating brush attaching / detaching opening 6a from the end of the rotating brush 8 on the side opposite to the rotating brush attaching / detaching portion 8a, and the end is engaged with the joint mechanism 9 before the rotating brush attaching / detaching portion 8a. Is engaged with the rotary brush attaching / detaching opening 6a, whereby the rotary brush 8 can be attached to the case portion 6.

  As shown in FIGS. 5 to 10, a ring-shaped dust removing tool 10 is rotatably attached to an end of the suction port 1 a on the side of the rotary brush attaching / detaching opening 6 a. The dust removing tool 10 is a ring-shaped member whose inner diameter is substantially equal to or slightly larger than the outer diameter of the cylindrical member 8b, and whose outer diameter is approximately equal to or slightly smaller than the outer diameter of the cleaning body 8d. The rotating brush 8 is attached so as to be rotatable about the same axis as the rotating shaft of the rotating brush 8. The dust removing tool 10 is engaged with the rotating brush 8 so that the rotating brush 8 passes through the ring of the dust removing tool 10.

  As shown in FIG. 11, the rotary brush 8 is provided so as to project spirally between a cylindrical member 8b in which a plurality of spiral grooves 8c are formed around the groove 8c and the grooves 8c of the cylindrical member 8b. The cleaning body 8d is mainly composed. The cleaning body 8d is for scraping off dust on the surface to be cleaned, and a blade made of an elastic material such as rubber or a fibrous brush hair is used. Here, the number of the groove portions 8c and the cleaning bodies 8d provided in the rotating brush 8 is four each. However, this number is not limited to four, and may be any number as long as it is two or more.

  As shown in FIG. 15 and FIG. 16, the dust removing tool 10 has dust removing claw portions 10a and tapered ribs 10b on the inner periphery thereof in the same number as the groove portions 8c of the rotary brush 8, respectively. Is provided. Each of the dust removing claws 10a has a shape protruding from the inner periphery of the dust removing tool 10 to the opposite side of the rotary brush attaching / detaching opening 6a. And the part in the inner periphery of the dust removal tool 10 is the same width dimension, and the protrusion part is formed so that it may become thin gradually as it goes to a front-end | tip.

  Each of the tapered ribs 10b does not have a portion protruding from the inner periphery of the dust removing tool 10, and has a tapered shape formed of a part of a substantially oblique cone shape with the apex facing the rotary brush attaching / detaching opening 6a side. The substantially inclined cone shape means that the axis connecting the apex of the cone and the center of the bottom surface is inclined at a predetermined angle with respect to the rotation axis of the rotating brush 8. Yes.

  As shown in FIG. 16, the dust removing tool 10 includes a detachable opening side part 11, a dust removing claw part side part 12, and a ring-shaped member 13. As shown in FIG. 17, the detachable opening-side component 11 is a component in which a tapered rib 10b is provided on a ring-shaped inner periphery. Moreover, the dust removal claw part side component 12 is a component in which a dust removal claw portion 10a is provided on the inner periphery of a ring shape, as shown in FIG. And by attaching the detachable opening side part 11 and the dust removing claw part side part 12 with the ring-shaped member 13 fitted to the outer periphery of the detachable opening side part 11 and the dust removing claw part side part 12, The dust removing tool 10 is configured.

  The figure which looked at the detachable opening side part 11 from the axial direction is shown in FIG.19 and FIG.20. The outer shape of the tapered rib 10b viewed from the axial direction is substantially the same as the cross section of the groove 8c of the rotating brush 8. When the rotating brush 8 is passed through the dust removing tool 10, the tapered rib 10b is smooth. The groove 8c of the rotating brush 8 is engaged. Further, the outer shape of the dust removing claw portion 10a when viewed from the axial direction is also the same as that of the tapered rib 10b, and the connecting portion between the dust removing claw portion 10a and the tapered rib 10b is smoothly continuous.

  In the vacuum cleaner suction tool configured as described above, when the rotary brush 8 is attached to the case portion 6, the rotary brush 8 passes through the dust removing tool 10 and is provided in each of the groove portions 8c. On the other hand, the dust removing claw portion 10a is engaged. When the rotating brush 8 is pulled out from the rotating brush attaching / detaching opening 6a with the rotating brush attaching / detaching portion 8a, the dust removing claw portion 10a is guided by the spiral groove 8c, and one of the rotating brush 8 and the dust removing tool 10 is provided. Alternatively, the thread-like debris entangled with the rotating brush 8 is removed by the dust removing claw 10a while both are rotating.

  When the pulled out rotating brush 8 is installed in the case portion 6, the rotating brush 8 is inserted into the rotating brush attaching / detaching opening 6 a from the end on the side engaged with the joint mechanism 9, and then the end Is inserted into the dust removing tool 10. At this time, the rotating brush 8 must be inserted into the dust removing tool 10 so that the dust removing claw 10a is finally engaged with the groove 8c. Here, even if the position of the dust removing claw portion 10a and the position of the groove portion 8c do not match, if the apex portion of the tapered rib 10b is located anywhere in the groove portion 8c, then the rotating brush is further increased. When 8 is inserted, the dust removing tool 10 is rotated by the action of the tapered rib 10b, and the dust removing claw portion 10a and the groove portion 8c are automatically engaged with each other (see also FIGS. 11 to 14). .

  Therefore, when the rotary brush 8 is inserted into the case portion 6 while being engaged with the dust remover 10, the dust removal claw portion 10a of the dust remover 10 and the insertion end surface of the rotary brush 8 are prevented from being caught, Can be inserted smoothly.

  Further, the shape of the tapered rib 10b is made of a part of a substantially oblique cone inclined obliquely at a predetermined angle with respect to the rotation axis of the rotary brush 8, so that the apex of the tapered rib 10b is obtained. Even if it hits the insertion end face of the rotary brush 8, the dust removal tool 10 can be easily rotated by applying force in the insertion direction as it is, and the dust removal claw portion 10a and the groove portion 8c are smoothly engaged and rotated. A brush 8 can be inserted.

  Here, an example has been described in which the rotation of the rotary brush 8 is driven by a motor that operates by receiving power supply, but the rotation of the rotary brush 8 is driven by a power source other than the motor. Also good. As a power source other than this motor, for example, a turbine using suction air driven by the electric blower 4b can be considered.

  Further, the distance from the end of the dust removing tool 10 on the rotary brush attaching / detaching opening 6a side to the apex of each tapered rib 10b may be all equal or to the apex of a certain tapered rib 10b. The distance is shorter than the distance to the apex of the other tapered rib 10b (the axial length of a certain tapered rib 10b is longer than the axial length of the other tapered rib 10b. As well).

  By doing in this way, when inserting the rotary brush 8 in the case part 6, since the taper rib 10b contact | abutted with the insertion end surface of the rotary brush 8 becomes one, it becomes easier to obtain the effect | action of the taper rib 10b. In addition, the rotating brush 8 can be inserted by smoothly engaging the dust removing claw portion 10a and the groove portion 8c.

  The vacuum cleaner suction tool configured as described above includes a cylindrical member having a plurality of spiral grooves formed in the periphery thereof, and a cleaning body provided in a spiral manner between the groove portions of the cylindrical member. And a suction opening on the bottom surface, and the rotary brush is rotatably accommodated therein, and is removable by moving the rotary brush in the axial direction through an opening provided on one side surface thereof. A ring-shaped dust removing tool provided in the case portion and the suction port so as to be rotatable about the same axis as the rotating brush, and provided on the inner periphery of the dust removing tool, projecting to the opposite side of the opening. A dust removing claw portion that has a shape and engages with the groove portion, a tapered taper shape that is provided smoothly and continuously with the dust removing claw portion on the inner periphery of the dust removing tool, and that gradually decreases toward the opening. With ribs, That.

  For this reason, when inserting the rotating brush into the case part while engaging the dust removing tool, it is possible to promptly engage the dust removing claw part of the dust removing tool and the groove part of the rotating brush and insert it smoothly. it can.

DESCRIPTION OF SYMBOLS 1 Suction tool main body 1a Suction port 2 Suction pipe 3 Hose 4 Vacuum cleaner main body 4a Dust collection part 4b Electric blower 5 Gripping part 6 Case part 6a Rotating brush attaching / detaching part 7 Elbow joint 8 Rotating brush 8a Rotating brush attaching / detaching part 8b Cylindrical shape Member 8c Groove portion 8d Cleaning body 9 Joint mechanism 10 Dust removing tool 10a Dust removing claw portion 10b Tapered rib 11 Removable opening side component 12 Dust removing claw portion side component 13 Ring-shaped member

Claims (3)

A rotating brush having a cylindrical member having a plurality of spiral grooves formed around and a cleaning body provided in a spiral manner between the grooves of the cylindrical member;
A suction port is provided on the bottom, the rotary brush is rotatably accommodated therein, and a removable case part by moving the rotary brush in the axial direction through an opening provided on one side surface thereof;
A ring-shaped dust removing tool provided in the suction port so as to be rotatable about the same axis as the rotating brush;
A dust removing claw portion provided on an inner periphery of the dust removing tool, having a shape protruding to the opposite side of the opening, and engaging with the groove;
An electric vacuum cleaner comprising: a tapered rib provided in a smoothly continuous manner with the dust removing claw portion on an inner periphery of the dust removing tool and gradually becoming thinner toward the opening portion. Suction tool.   The tapered rib has a tapered shape formed of a part of a substantially oblique cone inclined obliquely at a predetermined angle with respect to the axis of the rotating brush with the apex facing the opening side. The vacuum cleaner suction tool according to claim 1. The dust removing claw portion and the tapered rib are provided in the same number as the groove portion corresponding to each of the groove portions,
The distance from the apex of the tapered rib of one of the plurality of tapered ribs to the end on the opening side of the dust removing tool is the distance from the apex of the other tapered ribs to the dust removing tool. The suction tool for a vacuum cleaner according to any one of claims 1 and 2, wherein the suction tool is shorter than a distance to the end on the opening side.

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