JP4436785B2 - Vacuum cleaner suction tool - Google Patents

Description

  The present invention relates to a vacuum cleaner suction tool that is connected to a vacuum cleaner body, sucks dust on a surface to be cleaned together with air, and sends the dust to the vacuum cleaner body side.

A vacuum cleaner generally has a main body provided with an electric blower, a rear end attached to the main body, a hose provided with an operation part at the front end, and a rear end connected to the operation part of the hose. Has a pipe to which a suction tool is connected. The user performs cleaning by holding a grip provided on the operation unit and moving the suction tool back and forth along the surface to be cleaned.
The conventional suction tool has a shape connected to the pipe in a so-called T-shape so that dust on the surface to be cleaned can be efficiently sucked when moved back and forth. That is, the suction tool has a casing having a predetermined width, thickness, and depth, and the width of the casing is longer than the thickness and depth. A connecting cylinder protruding rearward is provided at the center in the width direction of the casing, and the connecting cylinder is coupled to the tip of the pipe.

By the way, the surface to be cleaned includes not only the central portion of the floor surface with a large area but also the boundary with the wall at the corner of the floor surface, the bottom of the bed, and the gap between the wall and furniture. It must be able to capture dust well with tools.
Therefore, conventionally, the suction tool is rotatable with respect to the pipe, and the angle and direction of the suction tool can be changed at the tip of the pipe.

An example of such a configuration is shown in FIG. 19 of Japanese Patent Laid-Open No. 10-262878 (Patent Document 1).
JP-A-10-262878

In the configuration proposed in Patent Document 1, the suction tool attached to the tip of the pipe can rotate the suction tool so that the width direction of the casing is parallel to the length direction of the pipe. . Thereby, if there exists a clearance more than the depth direction of a casing, a suction tool can be inserted in the clearance and cleaning can be performed.
However, the suction tool proposed in Patent Document 1 has a relatively large depth dimension, such as a gap between the furniture and the wall, a gap between the furniture and the furniture, or the like, and a gap that has a narrow width enough to finally enter the pipe. Cannot be inserted. Therefore, conventionally, there is a case where the suction tool is removed from the pipe and the gap is cleaned using the tip of the pipe.

Therefore, the main object of the present invention is to provide a vacuum cleaner suction tool which is improved so that it can be cleaned well even in a narrow gap as described above.
It is another object of the present invention to provide a vacuum cleaner suction tool that can be switched to a form suitable for the case where the surface to be cleaned is wide or narrow.

The first aspect of the present invention is a first casing that is relatively long in the width direction and relatively short in the depth direction, has a suction port that is long in the width direction on the bottom surface, and has a suction space inside. It is combined with the first casing and can be displaced to a standing position located on the upper side of the first casing and a normal position located on the rear side of the first casing. A second casing having a suction passage communicating with the suction space of the first casing; and a center in the width direction of the second casing that is swingable in the vertical direction with respect to the second casing; A connection cylinder that is pivotally held at the center and has a connection channel that communicates with the suction channel of the second casing, and that can be connected to the tip of a hose or pipe attached to the main body of the vacuum cleaner. Electric sweeping It is a machine for the suction tool.

  The invention according to claim 2 is characterized in that the connecting cylinder can be in a state of projecting obliquely in the width direction when the second casing is in the upright position. It is a tool.

According to a third aspect of the present invention, the suction flow path of the second casing is connected to both ends of the suction space as viewed in the width direction, and air is sucked from both ends of the suction space in the width direction to connect the second casing in the center. The vacuum cleaner suction tool according to claim 1 or 2 , wherein the suction tool is guided to a road.

According to a fourth aspect of the present invention, a rotary brush that rotates about a rotation shaft extending in the width direction of the first casing is built in the suction space of the first casing, and the rotary brush is a suction flow of the second casing. The suction tool for a vacuum cleaner according to claim 3 , wherein the suction tool is rotated by an air flow sucked from a road.
According to a fifth aspect of the present invention, a rotary brush that rotates about a rotation shaft extending in the width direction of the first casing is built in the suction space of the first casing, and the suction flow path of the second casing is in the width direction. In connection with one end of the suction space, air is sucked from one end in the width direction of the suction space and led to the connection flow path in the center of the second casing, and on the side opposite to the suction flow path of the second casing, The vacuum cleaner suction tool according to claim 1, wherein a motor for driving the rotary brush is disposed.

According to a sixth aspect of the present invention, the suction flow path of the second casing is connected to the center in the width direction of the suction space, and a motor for driving the rotary brush is provided on one side in the width direction of the second casing. It is arrange | positioned, It is the vacuum cleaner suction tool of Claim 1 or Claim 2 characterized by the above-mentioned.

According to the first aspect of the present invention, the first casing in which the rotating brush is built has a shape that is relatively long in the width direction and relatively short in the depth direction. The shape can be inserted into a narrow gap in the direction. In the invention which concerns on Claim 1, the 2nd casing is combined with the 1st casing. The second casing can be displaced to a standing position located on the upper side of the first casing and a normal position located on the rear side of the first casing. When the second casing is in the normal position, the suction tool is seen in the depth direction, and the first casing and the second casing are arranged side by side, and has substantially the same shape as the conventional suction tool. On the other hand, when the second casing is in the upright position, the second casing is placed on the upper side of the first casing, and the dimension when the suction tool is viewed in the depth direction is shortened. Therefore, by setting the second casing to the standing position, it is possible to insert the suction tool in the width direction with respect to a narrow gap or the like.
Further, since the connecting cylinder can be swung and rotated with respect to the second casing, the direction of the suction tool can be displaced in a desired direction with respect to the pipe and the operation unit. Therefore, even during normal cleaning or clearance cleaning, the suction tool can be in a desired direction and can be cleaned with ease of use.

  In the invention according to claim 2, when the second casing is set to the upright position, the connecting cylinder can be protruded obliquely in the width direction of the casing. Therefore, a pipe etc. can be connected to a connection cylinder and a suction tool can be operated favorably for clearance cleaning.

In the invention according to claim 3 , the suction flow path of the second casing sucks air and dust from both sides of the suction space with respect to the suction space of the first casing. Therefore, the suction flow path of the second casing can efficiently suck air and dust from the suction space of the first casing.
In the invention of claim 4 , the suction flow path of the second casing communicates with both sides in the width direction of the suction space of the first casing, and the rotating brush built in the first casing is A rotating brush that rotates using an air flow can be employed.

In the inventions according to claims 5 and 6 , since the suction flow path of the second casing is a flow path from one end toward the center or a flow path formed at the center, the suction flow path is provided at least on the other end side of the second casing. Free space that doesn't contribute. Therefore, it is possible to arrange a motor for driving the rotating brush using the empty space. That is, according to the fifth and sixth aspects of the invention, it is possible to configure a so-called power brush built-in suction tool that is rotated by a motor.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a plan view of a vacuum cleaner suction tool 10 according to a first embodiment of the present invention. A first casing 11 is arranged on the front side of the suction tool 10, and a second casing 12 is combined with the first casing 11. In the normal state, the second casing 12 is located on the rear side of the first casing 11.

  A protrusion 13 protruding rearward is formed at the center in the width direction (left-right direction in FIG. 1) of the second casing 12, and a connecting cylinder 14 is provided on the rear side of the protrusion 13. The connecting cylinder 14 includes a connecting part 15 attached to the protrusion 13 of the second casing 12 and a cylinder part 16 held by the connecting part 15. The cylindrical portion 16 forms a connection flow path 29, and a pipe or the like (not shown) can be connected to the rear end thereof. The cylindrical portion 16 is held by the connecting portion 15 so as to be swingable in the vertical direction (perpendicular to the paper surface in FIG. 1) with respect to the second casing 12, and is rotatable about the axis of the cylindrical portion 16. Is held in.

  FIG. 2 is a front view of the suction tool 10. A bumper 17 extending in the width direction (left and right direction in FIG. 2) is attached to the front surface of the first casing 11. The bumper 17 is formed of an elastic body and absorbs an impact when the first casing 11 hits furniture, a wall, or the like. On the lower surface of the first casing 11, rollers 18 for assisting the suction tool 10 to move in the front-rear direction are provided on both sides in the width direction.

FIG. 3 is a view showing a state where the upper covers of the first casing 11 and the second casing 12 are removed in order to show the internal structure of the suction tool 10. In FIG. 3, white arrows indicate the flow of air that is sucked.
The first casing 11 is formed with a suction port 20 (shown by a one-dot chain line). The suction port 20 is an opening that is long in the width direction of the first casing 11. A suction space 21 is formed inside the first casing 11 connected to the suction port 20. In the suction space 21, there is provided a rotating brush 23 that rotates about a rotation shaft 22 that extends in the length direction of the suction port 20. The rotating brush 23 includes a plurality of elastic plates 24 extending in the axial direction. These elastic plates 24 scrape dust on the surface to be cleaned. Further, the elastic plate 24 receives the air flow sucked from the suction port 20, and the rotating brush 23 is rotated.

  The second casing 12 is formed with a suction flow path 25 communicating with the suction space 21 of the first casing 11. The suction channel 25 has channel inlets 26 on both sides in the width direction, takes air and dust in the suction space 21 from the channel inlet 26, guides them backward, and guides them to the center in the width direction. At the rear of the second casing 12, an inlet 27 of the connection cylinder 14 is opened at the center in the width direction. And the air and dust which entered from the inlet 27 pass through the connection flow path 29 formed in the connection cylinder 14, and are discharged | emitted from the back outlet 28 to the pipe etc. which are not shown in figure.

FIG. 4 is a right side view of the suction tool 10 when the suction tool 10 is used in a normal state. As shown in the figure, the second casing 12 is positioned on the rear side of the first casing 11 in a normal state. That is, the second casing 12 is in the normal position.
One of the features of the suction tool 10 according to this embodiment is that the second casing 12 can be displaced with respect to the first casing 11.

  FIG. 5 is a right side view of the suction tool 10 in which the second casing 12 is in an upright position with respect to the first casing 11. As shown in FIG. 5, the second casing 12 can rotate to the upper side of the first casing 11 and can be displaced to the standing position located on the upper side of the first casing 11. When the second casing 12 is in the standing position, the suction tool 10 has a depth-direction dimension substantially equal to the depth dimension of the first casing 11, and the suction tool 10 can be inserted into a narrow gap or the like in the width direction. It becomes possible. That is, it can be displaced to a form suitable for clearance cleaning.

When the second casing 12 is in the upright position, the connection cylinder 14 connected to the second casing 12 can be switched so that the cylinder portion 16 protrudes obliquely in the width direction of the second casing 12. That is, by rotating and swinging the cylindrical portion 16, the cylindrical portion 16 can extend from the second casing 12 obliquely upward in the width direction.
In FIGS. 4 and 5, reference numeral 30 denotes a small brush planted on the bottom surface of the first casing 11.

  FIG. 6 is a front view of the suction tool 10 when the second casing 12 is in the standing position. As apparent from the comparison with FIG. 2, the state of the first casing 11 does not change, but the second casing 12 is in an upright position with respect to the first casing 11, so that the first casing 11 is positioned above the first casing 11. Two casings 12 are located. The connecting cylinder 14 connected to the projecting portion 13 of the second casing 12 holds the cylindrical portion 16 so that the connecting portion 15 can swing and rotate, so that the cylindrical portion 16 has the width of the second casing 12. It is switched so as to protrude obliquely upward in the direction.

FIG. 7 is a central longitudinal sectional view in the width direction of the suction tool 10 when the second casing 12 is in the normal position, and FIG. 8 is a central longitudinal sectional view in the width direction of the suction tool 10 when the second casing 12 is in the standing position. It is.
FIGS. 9 and 10 are cross-sectional views taken along line AA ′ in FIG. 3, respectively. FIG. 9 shows the second casing 12 in the normal position, and FIG. 10 shows the second casing 12 in the standing position. Show. 9 and 10, white arrows indicate the flow of air sucked.

From FIG. 7 to FIG. 10, the second casing 12 combined with the first casing 11 can be switched between the normal position and the standing position with respect to the first casing 11. The positional relationship between the suction space 21 and the suction flow path 25 can be understood.
As in the present invention, the suction tool 10 includes the first casing 11 and the second casing 12, and by allowing the second casing 12 to be displaced to the normal position and the standing position with respect to the first casing 11, When the second casing 12 is in the normal position, the wide range defined by the width of the casing can be cleaned at a time by operating the casing back and forth in the depth direction with respect to the floor surface, similarly to the conventional suction tool. it can.

On the other hand, when the second casing 12 is set to the standing position, the dimension of the suction tool 10 in the depth direction becomes as small as the dimension of the first casing 11 in the depth direction. Therefore, in the state where the second casing 12 is in the upright position, the suction tool 10 can be entered into a narrow gap or the like, which is suitable for clearance cleaning.
Thus, according to the present invention, the suction tool 10 can be displaced between a posture suitable for normal cleaning and a posture suitable for clearance cleaning. Any clearance cleaning can be performed efficiently.

FIG. 11 is a plan view of the suction tool 40 according to the second embodiment of the present invention. The suction tool 40 also includes a first casing 11, a second casing 12 combined with the first casing 11, and a connecting cylinder 14 having a connecting portion 15 and a cylindrical portion 16 projecting at the center in the width direction of the second casing 12. have.
FIG. 12 is a view showing a state where the upper covers of the first casing 11 and the second casing 12 are removed so that the internal structure of the suction tool 40 can be understood. In FIG. 12, a white arrow indicates a flow of air sucked.

  The suction tool 40 is characterized in that the rotating brush 23 built in the first casing 11 is not rotated by the air flow but is driven by the motor 41. The motor 41 is provided in a space on the left side in the width direction of the second casing 12 (left side in FIG. 12). A gear 42 is attached to the rotating shaft of the motor 41. The rotating brush 23 has a gear 43 attached to the left rotating shaft 22. A belt 44 is stretched between the gears 42 and 43. Thereby, the rotating brush 23 is rotated by the driving force of the motor 41.

  Since the motor 41 is built in the second casing 12, the suction flow path 25 of the second casing 12 is not a flow path that sucks in from both the left and right sides in the width direction, but a flow path that sucks in only from one side. That is, the air and dust in the suction space 21 of the first casing 11 are connected to the center in the width direction through the suction channel 25 from the channel inlet 26 formed on the right side of the second casing 12. Guided to the inlet 27 of the tube 14.

In the second casing 12, a substrate 45 and wiring for controlling the drive of the motor 41 are provided using an empty area.
Similarly to the suction tool 10 according to the first embodiment, the suction casing 40 according to the second embodiment also allows the second casing 12 to be displaced to the normal position and the standing position with respect to the first casing 11. This is a feature of the suction tool 40.

13 is a right side view of the suction tool 40 when the second casing 12 is in the normal position, and FIG. 14 is a right side view of the suction tool 40 when the second casing 12 is in the standing position.
FIG. 15 is a center longitudinal sectional view in the width direction of the suction tool 40 when the second casing 12 is in the normal position, and FIG. 16 is a center in the width direction of the suction tool 40 when the second casing 12 is in the standing position. It is a longitudinal cross-sectional view. Further, FIGS. 17 and 18 are cross-sectional views taken along line AA ′ in FIG. 12, showing the second casing 12 in the normal position and the second casing 12 in the standing position, respectively. ing. In FIGS. 17 and 18, white arrows indicate the flow of air that is sucked.

From FIG. 13 to FIG. 18, the suction tool 40 can be displaced in a state suitable for normal cleaning and a state suitable for clearance cleaning similarly to the suction tool 10, and the first casing 11 is In any form, since the suction tool 20 is opposed to the surface to be cleaned, it can be understood that any form is suitable for cleaning the surface to be cleaned.
In the suction tool 40, since the rotary brush 23 is driven by the motor 41, it is possible to control the rotary brush 23 so as not to rotate, for example, in a form suitable for clearance cleaning with the second casing 12 in the standing position. It is.

The other structure of the suction tool 40 is the same as that of the suction tool 10 demonstrated previously, The same number is attached | subjected to the part which is the same or respond | corresponds, and the overlapping description is abbreviate | omitted.
FIG. 19 is a plan view of a vacuum cleaner suction tool 50 according to the third embodiment of the present invention. The suction tool 50 includes a first casing 11, a second casing 12, a connecting cylinder 14 having a coupling part 15 and a cylinder part 16. Further, a suction flow path 25 for communicating the first casing 11 and the second casing 12 is provided. In the suction tool 50, the suction flow path 25 has a so-called bellows shape, and has a stretchable and flexible structure.

FIG. 20 is a view showing a state in which the upper covers of the first casing 11 and the second casing 12 are removed so that the internal structure of the suction tool 50 can be understood. In FIG. 20, a white arrow indicates a flow of air sucked.
The suction tool 50 is also configured such that the rotary brush 23 is driven by the motor 41. For this reason, the motor 41 is provided with a gear 42 attached to its rotating shaft, the rotating brush 23 is provided with a gear 43 provided at the left end of the rotating shaft 22, and the gears 42 and 43 are connected by a belt 44. Yes.

The feature of the suction tool 50 is that, like the suction tools 10 and 40, the second casing 12 can be displaced to the normal position and the standing position with respect to the first casing 11. Further, the suction flow path 25 that connects the suction space 21 of the first casing 11 and the inlet 27 of the connection cylinder 14 attached to the second casing 12 is constituted by the bellows pipe 51.
FIG. 21 is a central vertical cross-sectional view in the width direction of the suction tool 50 and shows the second casing 12 when it is in the normal position, and FIG. 22 is a vertical cross-sectional view when the second casing 12 is in the standing position. Show.

As shown in FIGS. 21 and 22, when the second casing 12 is switched to the normal position and the standing position, the bellows pipe 51 at the center follows the displacement of the second casing 12 and sucks the first casing 11. It corresponds so that the suction flow path 25 may connect between the space 21 and the inlet of the connection cylinder 14 attached to the second casing 12.
The other structure of the suction tool 50 is the same as that of the suction tool 10 and the suction tool 40 demonstrated previously, The same number is attached | subjected to the same part and the overlapping description is abbreviate | omitted.

  The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

It is a top view of vacuum cleaner suction tool 10 concerning a 1st embodiment of this invention. 2 is a front view of the suction tool 10. FIG. It is the figure which showed the state from which the upper cover of the 1st casing 11 and the 2nd casing 12 was removed in order to show the internal structure of the suction tool 10. FIG. It is a right view of the suction tool 10, and is a figure when using the suction tool 10 in a normal state. FIG. 3 is a right side view of the suction tool 10 with the second casing 12 in an upright position with respect to the first casing 11. It is a front view of the suction tool 10 when the 2nd casing 12 is a standing position. It is a center longitudinal cross-sectional view of the suction tool 10 when the 2nd casing 12 is a normal position. It is the center longitudinal cross-sectional view of the suction tool 10 when the 2nd casing 12 is a standing position. It is sectional drawing of AA 'in FIG. 3, and is a figure when the 2nd casing 12 is a normal position. It is sectional drawing of AA 'in FIG. 3, and is a figure when the 2nd casing 12 is a standing position. It is a top view of suction tool 40 concerning a 2nd embodiment of this invention. It is the figure which showed the state from which the 1st cover 11 and the 2nd cover 12 were removed so that the internal structure of the suction tool 40 could be understood. It is a right view of the suction tool 40 when the 2nd casing 12 is a normal position. It is a right view of the suction tool 40 when the 2nd casing 12 is a standing position. It is a center longitudinal cross-sectional view of the suction tool 40 when the 2nd casing 12 is a normal position. It is the center longitudinal cross-sectional view of the suction tool 40 when the 2nd casing 12 is a standing position. It is sectional drawing cut | disconnected along AA 'in FIG. 12, Comprising: It is a figure when the 2nd casing 12 is a normal position. It is sectional drawing cut | disconnected along AA 'in FIG. 12, Comprising: It is a figure when the 2nd casing 12 is a standing position. It is a top view of suction tool 50 for vacuum cleaners concerning a 3rd embodiment of this invention. It is the figure which showed the state from which the 1st cover 11 and the 2nd cover 12 were removed so that the internal structure of the suction tool 50 could be understood. It is a center longitudinal cross-sectional view of the suction | inhalation 50, and is a figure when the 2nd casing 12 is a normal position. It is a center longitudinal cross-sectional view of the suction | inhalation 50, and is a figure when the 2nd casing 12 is a standing position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 40, 50 Vacuum cleaner suction tool 11 1st casing 12 2nd casing 14 Connection cylinder 15 Connection part 16 Tube part 20 Suction port 21 Suction space 23 Rotating brush 25 Suction flow path 29 Connection flow path 41 Motor 51 Bellows pipe

Claims (6)

A first casing having a shape that is relatively long in the width direction and relatively short in the depth direction, has a suction port that is long in the width direction on the bottom surface, and has a suction space inside;
It is combined with the first casing, and can be displaced to a standing position located on the upper side of the first casing and a normal position located on the rear side of the first casing. A second casing having a suction channel communicating with the suction space of the first casing;
A connecting flow path that is swingable in the vertical direction with respect to the second casing and pivotable about an axis at the center in the width direction of the second casing and communicates with the suction flow path of the second casing. A connecting cylinder that can be connected to the tip of a hose or pipe attached to the main body of the vacuum cleaner,
A vacuum cleaner suction tool characterized by comprising:   2. The vacuum cleaner suction tool according to claim 1, wherein when the second casing is in an upright position, the connection tube can project obliquely in the width direction. The suction passage of the second casing is connected to both ends of the suction space when viewed in the width direction, and sucks air from both ends of the suction space in the width direction and guides it to the connection passage in the center of the second casing. The vacuum cleaner suction tool according to claim 1 or 2 . In the suction space of the first casing, a rotating brush that rotates around a rotation axis extending in the width direction of the first casing is built-in,
The suction tool for an electric vacuum cleaner according to claim 3 , wherein the rotating brush rotates by an air flow sucked from a suction flow path of the second casing. In the suction space of the first casing, a rotating brush that rotates around a rotation axis extending in the width direction of the first casing is built-in,
The suction passage of the second casing is connected to one end of the suction space when viewed in the width direction, sucks air from one end of the suction space in the width direction, and leads to the connection passage in the center of the second casing,
The vacuum cleaner suction tool according to claim 1 or 2 , wherein a motor for driving the rotary brush is disposed on the opposite side of the second casing from the suction flow path. . The suction flow path of the second casing is connected to the center in the width direction of the suction space,
The vacuum cleaner suction tool according to claim 1 or 2 , wherein a motor for driving the rotating brush is disposed on one side in the width direction of the second casing.

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