JP2006334301A - Suction tool for vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an improvement so as to excellently clean even a narrow gap. <P>SOLUTION: The suction tool 1 for a vacuum cleaner relating to this invention is provided with a housing 2 having prescribed width W, thickness H and depth D. A first connection hole is provided on the roughly center in the direction of the width W of the housing 2, and a connection cylinder 3 is attached through a connection part 4 to the first connection hole. The housing 2 is further provided with a second connection hole 19 on one end in the direction of the width W. The connection cylinder 3 and the connection part 4 can be freely detached from the first connection hole and reattached to the second connection hole 19. The suction tool 1 can be used for normal cleaning by mounting the connection cylinder 3 on the first connection hole, and the suction tool 1 can be used for gap cleaning by mounting the connection cylinder 3 on the second connection hole 19. <P>COPYRIGHT: (C)2007,JPO&INPIT

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, and sends it 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 the suction tool is connected. The user performs cleaning by grasping a grip provided in 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 housing having a predetermined width, thickness, and depth, and the width of the housing is longer than the thickness and depth. A connecting tube that protrudes rearward is provided at the center in the width direction of the housing, and the connecting tube 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 housing is parallel to the length direction of the pipe. . Thereby, if there exists a clearance beyond the depth direction of a housing, a suction tool can be inserted in the clearance and it can clean.
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 only a narrow width so that the pipe can finally enter. 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 that 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 invention described in claim 1 has a housing having a predetermined width, thickness, and depth, and a suction port that is long in the width direction on the bottom surface thereof, and is provided at substantially the center in the width direction of the housing. A first connection hole that communicates with the first connection hole, a second connection hole that is provided at one end in the width direction of the housing and communicates with the suction port, and the first connection hole and the second connection hole A vacuum cleaner suction tool characterized in that it includes a connection tube that can be freely changed.

According to a second aspect of the present invention, each of the first connection hole and the second connection hole is provided with an openable / closable cap that opens the hole when the connection tube is mounted and closes the hole when the connection tube is not mounted. The vacuum cleaner suction tool according to claim 1, wherein the vacuum cleaner suction tool is provided.
A third aspect of the present invention is the vacuum cleaner suction tool according to the second aspect, wherein the cap is provided with an elastic body that normally biases the cap in a direction of closing the hole. .

According to a fourth aspect of the present invention, the first connection hole opens rearward on the back surface of the housing, and the second connection hole opens sideways on one side surface of the housing. The vacuum cleaner suction tool according to claim 5, wherein the vacuum cleaner suction tool is provided.
According to a fifth aspect of the present invention, the connecting cylinder includes a connecting portion attached to the first connecting hole or the second connecting hole, and a cylindrical portion extending from the connecting portion, and the connecting portion is a cylindrical portion. The suction tool for a vacuum cleaner according to any one of claims 1 to 4, wherein the suction tool is swingably held in the thickness direction of the housing.

  A sixth aspect of the present invention is the vacuum cleaner suction tool according to the fifth aspect, wherein the connecting portion further holds the cylindrical portion so as to be rotatable in the axial direction thereof.

The vacuum cleaner suction tool includes a housing and a connecting tube protruding from the housing.
In the invention according to claim 1, the housing is provided with two connection holes, and the connection cylinder can be selectively attached to either of the two connection holes. Since the first connection hole is provided substantially at the center in the width direction of the housing, when the connection cylinder is attached to the first connection hole, the pipe and the operation portion are connected to the pipe as well as the conventional suction tool. The suction tool can be connected in a so-called T-shape.

  On the other hand, since the second connection hole is provided at one end in the width direction of the housing, when the connection cylinder is mounted in the second connection hole, the housing (suction) is arranged in the length direction of the pipe and the operation unit. Can be connected in an extended state. In this case, by setting the depth of the housing to a dimension that is approximately the same as or slightly larger than the diameter of the connecting cylinder or pipe, it is possible to provide a vacuum cleaner suction tool that can be inserted into a narrow gap.

In the invention according to claim 2, the first connection hole and the second connection hole are each provided with a cap. Since the cap closes the hole when the connecting cylinder is not mounted, air is sucked from the connecting hole where the connecting cylinder is not mounted, and the suction efficiency from the suction port does not decrease.
In the configuration of the third aspect, the cap is always urged by an elastic body, for example, a spring, in the direction of closing the hole. Therefore, the non-functioning connection hole is reliably closed by the cap, and unnecessary air is not sucked.

According to the fourth aspect of the present invention, when the connecting cylinder is attached to the pipe or the operation unit, the housing can be connected so as to face a desired direction.
According to the fifth and sixth aspects of the present invention, since the housing and the connecting cylinder can swing or rotate in a predetermined direction, the direction of the housing is displaced in a desired direction with respect to the pipe and the operation portion. It is possible to make the suction tool easy to use.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a right side view showing an example of a vacuum cleaner 200 to which a suction tool 1 according to an embodiment of the present invention is attached.
The vacuum cleaner 200 includes a vacuum cleaner main body 201, a hose 202, an operation unit 203, a pipe 204, and the suction tool 1 according to an embodiment of the present invention. The electric vacuum cleaner main body 201 incorporates an electric blower (not shown), and the electric blower generates a suction force.

  A connecting portion 210 provided on the rear end side of the hose 202 is detachably connected to the front side of the electric vacuum cleaner main body 201. The hose 202 is flexible and can be bent into any form. An operation unit 203 is attached to the opposite side (tip side) of the hose 202. The operation unit 203 includes a pipe portion 206 extending in the axial direction of the hose 202 and a grip 207 extending from the pipe portion 206 to the rear side in the cross direction and the axial direction. Further, a rotation mechanism 209 is interposed between the distal end side of the hose 202 and the operation unit 203, and the operation unit 203 and the hose 202 are connected to each other so as to be rotatable around an axis.

  The pipe 204 is a longitudinal, for example, resin product that connects the operation unit 203 and the suction tool 1. The pipe 204 is coaxially accommodated in the rear side (side to which the operation unit 203 is connected) 212 on the front side (side to which the suction tool 1 is attached) 211 with the substantially central portion in the length direction as a boundary. The length is variable. This length can be changed by operating a lock button 213 provided at the center of the pipe 204.

The suction tool 1 includes a housing 2, a connection tube 3, and a connecting portion 4 that attaches the connection tube 3 to the housing 2. Below, the structure of the suction tool 1 which is mounted | worn at the front-end | tip of the vacuum cleaner 200, is slid on the to-be-cleaned surface 400, and attracts the dust on the to-be-cleaned surface 400 is demonstrated in detail.
The rear side 212 of the pipe 204 can be removed from the operation unit 203, and the operation unit 203 can be directly coupled to the connection cylinder 3 of the suction tool 1.

FIG. 2 is a plan view of the suction tool 1 according to one embodiment of the present invention, and FIG. 3 is a central longitudinal sectional view of the suction tool 1 viewed from the right side.
Referring to FIGS. 2 and 3, the suction tool 1 includes a housing 2, a connection tube 3, and a connecting portion 4 for attaching the connection tube 3 to the housing 2. The housing 2 has a width W, a thickness H, and a depth D, and a suction port 6 that is long in the width W direction is formed on the bottom surface 5.

  A rotating brush 7 is provided in the housing 2 so as to face the suction port 6. The rotary brush 7 has an axis 8 extending in the width W direction of the housing 2 and can rotate counterclockwise in FIG. A hair bundle 9 and the like are planted around the shaft 8. The rotating brush 7 has a wind vane (not shown) at the center in the direction of the axis 8 and is rotated by the air flow when air is sucked. The rotating brush 7 does not require a driving motor, and can be attached to face the suction port 6 of the housing 2 without increasing the thickness or depth of the housing 2.

A first connection hole 11 is provided at approximately the center in the width W direction of the housing 2. The first connection hole 11 communicates with the suction port 6 and guides air and dust sucked from the suction port 6 to the rear (upward in FIG. 2 and rightward in FIG. 3).
The first connection hole 11 is defined by a cylinder 12 that opens to the back side of the housing 2. A pair of flanges 13 and 14 are formed on the upper portion of the cylindrical body 12. Further, a shutter 16 for opening and closing the first connection hole 11 is provided.

The connecting portion 4 is fitted in the first connection hole 11. The fitting portion 15 of the connecting portion 4 is fitted between the flanges 13 and 14. As shown in FIG. 3, the shutter 16 rotates below the connecting portion 4 to open the first connecting hole 11 in a state where the connecting portion 4 is fitted.
The connecting portion 4 holds the tip of the connecting cylinder 3 so that the connecting cylinder 3 can swing in the thickness H direction (vertical direction in FIG. 3) of the housing 2 around the support shaft 17. Further, the connecting portion 4 itself is attached to the cylinder 12 so as to be rotatable. A roller 18 is provided on the lower side near the front of the connecting portion 4.

The housing 2 is provided with a cylindrical body 20 that defines the second connection hole 19 at the left end thereof. The second connection hole 19 faces left in the width W direction of the housing and opens on the left side.
In FIG. 3, 29 is a roller at the front end of the housing 2, and 30 is a raised brush (brush) provided at the rear of the bottom of the housing.
A feature of the suction tool 1 according to this embodiment is that the connecting tube 3 and the connecting portion 4 are removable from the housing 2. FIG. 4 shows a plan view of the housing 2 from which the connecting cylinder 3 and the connecting portion 4 have been removed. 5 shows a central longitudinal sectional view of the housing shown in FIG. 4 as viewed from the right side.

  With reference to FIGS. 4 and 5, by sliding the slide buttons 21 provided on the left and right sides of the upper surface of the housing 2 outward (in a direction away from each other), a lock mechanism (not shown) is released, and the housing 2 The upper surface can be opened to clean the rotating brush 7 inside. In the state where the connecting cylinder 3 and the connecting portion 4 are removed, the first connecting hole 11 is opened, but the hole 11 is automatically closed by the shutter 16. The shutter 16 is rotatably attached by a support shaft 23 that is held by a protrusion 22 that protrudes below the cylindrical body 12. A string winding spring 28 (see FIGS. 6 and 7) is fitted to the support shaft 23, and the shutter 16 is urged by the elastic force of the string winding spring 28 so as to be always closed.

6 is a plan view of the suction tool 1 in a state where the connection cylinder 3 and the connecting portion 4 are mounted on the second connection hole 19 provided in the housing 2, that is, the cylinder 20 provided on the left side of the housing 2. FIG. It is. FIG. 7 is a rear view of the suction tool 1 in a state where the connection cylinder 3 and the connecting portion 4 are mounted in the second connection hole 19, and FIG. 8 is a cross-sectional view of a part of FIG. 7.
6 to 8, the cylindrical body 20 that defines the second connection hole 19 has a structure that is exactly the same as the cylindrical body 12 that defines the first connection hole 11, and the connecting portion 4 is outside. It can be fitted. That is, the cylindrical body 20 is provided with mounting flanges 24 and 25, and a shutter 26 is provided below the flange 20 so as to be rotatable about a support shaft 27. When the shutter 26 is opened, and the fitting portion 15 of the connecting portion 4 is fitted between the flanges 24 and 25 of the cylindrical body 20, the connecting tube 3 and the connecting portion 4 are inserted into the second connecting hole 19. Can be worn.

  The connected connecting cylinder 3 can be rotated in the vertical direction in FIGS. 7 and 8 by the connecting portion 4, the connecting cylinder 3 is attached to the pipe of the vacuum cleaner, the pipe is set in a desired oblique state, and the housing 2 is mounted. It can be cleaned by moving it back and forth in the width direction W. In this state, as shown in FIGS. 6 to 8, the connecting cylinder 3 extends on the extension line in the width direction of the housing 2 and can rotate in the thickness direction (vertical direction) of the housing 2. That is, when viewed from the pipe side, the housing 2 is suitable for cleaning the gap extending in the length direction of the connecting cylinder 3 instead of the T-shape.

  In this embodiment, the suction tool 1 includes a first connection hole 11 and a second connection hole 19, and the connection cylinder 3 can be attached to any one of the connection holes 11 or 19. In that case, since the unused connection hole is closed by the shutter 16 or 26, air does not flow from the unused connection hole. Therefore, air is satisfactorily sucked from the suction port 6 formed in the bottom surface 5 of the housing 2, and dust is also sucked from the suction port 6 as the air is sucked.

  9A and 9B are schematic views showing the configuration of a suction tool 31 according to another embodiment of the present invention, in which A is a plan view and B is a front view. In the suction tool 31, a connection tube 33 is provided on the upper surface of the housing 32, and the connection tube 33 is slidable in the width W direction of the housing 32. When the suction tool 31 is used in a normal state, the connecting tube 33 is positioned at the center of the housing 32 in the width W direction.

  On the other hand, when the suction tool 31 is used for clearance cleaning, the connecting tube 33 is slid toward the one end along the upper surface of the housing 32. By sliding, the first connection hole 34 formed in the center of the upper surface of the housing 32 is closed by the cover plate 35. Prior to the sliding of the connection tube 33, the cap 37 covering the second connection hole 36 formed in the upper end portion of the housing 32 is opened.

The connecting cylinder 33 is rotatable with respect to the upper surface of the housing 32 and can be bent at a desired angle.
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 right view which shows an example of the vacuum cleaner with which the suction tool which concerns on one Embodiment of this invention was attached. It is a top view of the suction tool which concerns on one Embodiment of this invention. It is the center longitudinal cross-sectional view which looked at the said suction tool from the right side. It is a top view of the housing 2 from which the connection cylinder 3 and the connection part 4 were removed. It is the center longitudinal cross-sectional view which looked at the housing 2 from the right side. FIG. 6 is a plan view of the suction tool in a state where the connection tube 3 and the connecting portion 4 are mounted in a second connection hole provided in the housing 2. It is a rear view of the suction tool of the state with which the connection cylinder 3 and the connection part 4 were mounted | worn in the 2nd connection hole. It is the figure which made a part of Drawing 7 a section. It is an illustration which shows the structure of the suction tool which concerns on other embodiment of this invention, A is a top view, B is a front view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,31 Suction tool 2,32 Housing 3,33 Connection cylinder 4 Connection part 5 Bottom face 6 Suction port 11,34 1st connection hole 12,20 Cylindrical body 16,26 Shutter 19,36 2nd connection hole 35 Cover board 37 cap

Claims (6)

A housing having a predetermined width, thickness, and depth, and having a longitudinal suction port formed in the width direction on the bottom surface thereof;
A first connection hole provided at substantially the center in the width direction of the housing and communicating with the suction port;
A second connection hole provided at one end in the width direction of the housing and communicating with the suction port;
A suction tool for a vacuum cleaner, comprising: a connection tube that is replaceable with respect to the first connection hole and the second connection hole.   Each of the first connection hole and the second connection hole is provided with an openable / closable cap for opening the connection cylinder when the connection cylinder is mounted and closing the hole when the connection cylinder is not mounted. The vacuum cleaner suction tool according to claim 1.   The vacuum cleaner suction tool according to claim 2, further comprising an elastic body that normally biases the cap in a direction in which the hole is closed. The first connection hole opens rearward on the back surface of the housing,
The vacuum cleaner suction tool according to claim 5, wherein the second connection hole opens toward one side of the housing. The connection tube includes a connecting portion mounted in the first connecting hole or the second connecting hole, and a tube portion extending from the connecting portion,
The vacuum cleaner suction tool according to any one of claims 1 to 4, wherein the connecting portion holds the cylindrical portion so as to be swingable in the thickness direction of the housing.   The vacuum cleaner suction tool according to claim 5, wherein the connecting portion further holds the cylindrical portion so as to be rotatable in the axial direction thereof.

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