JP2003310490A - Suction tool for vacuum cleaner and vacuum cleaner using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction tool for a vacuum cleaner that has improved usableness, small and lightweight, and a vacuum cleaner using the usable suction tool. <P>SOLUTION: The suction tool has a suction section 4 having an opening 12 sucking dust on a cleaned surface 23, a connecting pipe 6, a connection section 5 connecting the suction section 4 and the connecting pipe 6, a supporting section 7 attached to the connection section 5 or the connecting pipe 6 and contacting the cleaned surface. The connecting section 5 is rotatable nearly horizontally with respect to the cleaned surface 23 toward the suction section 4, the supporting section 7 is rotatable upward and downward with respect to the cleaned surface 23. When the connecting section 5 is rotated to the suction section 4 nearly horizontally with respect to the cleaned surface 23, the right and left sides of the suction tool 1 can be brought into close contact with a wall surface and can suck all the dust that is likely to gather at a corner. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the overall structure of an electric vacuum cleaner, and more particularly to improving the usability of a suction tool.

[0002]

2. Description of the Related Art The structure of a conventional suction tool 1 will be described with reference to FIG. In the conventional suction tool 1, the suction tool 1 attached to the tip of the handle portion 16 is rotated from the state shown in FIG. When viewed from the user who holds and cleans the portion 16, it is in a vertically long state as shown in FIG. 12B, and it is possible to insert the suction tool 1 into a narrow space or clean the side wall. . In addition, a support portion 7 configured by a roller or the like is provided at a portion located rearward of the suction portion 4 to keep the suction portion 4 horizontal with respect to the surface to be cleaned when the suction tool 1 is moved back and forth. Was responsible for.

[0003]

However, in the above-mentioned conventional configuration, the center of rotation of the suction portion 4 is largely displaced from the center of the suction portion 4, and the above-mentioned support portion 7 is required behind the suction portion 4. Therefore, the width of the suction tool 1 becomes large when the suction tool 1 is set in the vertically long state, and the suction tool 1 can enter only the tip portion of the suction tool 1 in a narrow gap.

From the conventional configuration shown in FIG. 13, the supporting portion 7 is simply
If the center of rotation of the suction part 4 is aligned with the center of the suction part 4, there will be no left and right protrusions in the vertically long state,
Although it becomes possible to enter the suction tool 1 into a narrower gap, when the surface to be cleaned is a carpet having a large amount of friction, such as a carpet having long hair, the suction tool is pushed when pushing the suction tool 1 forward. The front of 1 hits the surface to be cleaned, and the suction tool 1 floats above the surface to be cleaned due to the shape of the front. Also,
On the contrary, when the suction tool 1 is pulled toward you, the rear of the suction tool 1 is caught on the surface to be cleaned and the front of the suction tool 1 is lifted up, resulting in a vacuum cleaner with extremely poor usability.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, to improve the usability of a suction tool, to provide a suction tool for a vacuum cleaner which is small in size and lightweight and has high usability, and a vacuum cleaner using the suction tool. .

[0006]

In order to achieve the above object, the present invention provides a suction part having an opening for sucking dust on a surface to be cleaned, a central axis in the longitudinal direction of the suction part, and a longitudinal direction. Connecting pipe provided so that the central axis of the connecting pipe is substantially vertical, a connecting portion connecting the suction portion and the connecting pipe, the connecting portion or the connecting portion by being attached to the connecting pipe and contacting a surface to be cleaned, The connection part includes a support part for supporting the connection pipe, the opening part, the connection part, and the connection pipe have a passage part for transferring the sucked dust, and the connection part sucks in a substantially horizontal direction with respect to the surface to be cleaned. In addition to being rotatable with respect to the portion, the support portion is rotatable upward with respect to the surface to be cleaned, and the central axis in the longitudinal direction of the suction portion and the central axis in the longitudinal direction of the connecting pipe are substantially the same. In a normal vertical cleaning state, the suction part is floated by the support part. It has high usability without rising, and when the connecting part having the connecting pipe is rotated with respect to the suction part in a direction substantially horizontal to the surface to be cleaned, the left and right sides of the suction tool are brought into close contact with the wall surface. Therefore, it is possible to suck all the dust that easily collects in the corners, and it is possible to provide a suction tool for an electric vacuum cleaner that has high usability and excellent dust collection performance in all cleaning modes.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is
A suction unit having an opening for sucking dust on the surface to be cleaned;
A connecting pipe provided so that the central axis in the longitudinal direction of the suction part and the central axis in the longitudinal direction are substantially vertical, a connecting part connecting the suction part and the connecting pipe, and attached to the connecting part or the connecting pipe. A connecting part or a connecting part for supporting the connecting pipe by contacting a surface to be cleaned, the opening part, the connecting part and the connecting pipe have a passage part for transferring sucked dust, and the connecting part Is rotatable with respect to the suction part in a direction substantially horizontal to the surface to be cleaned, and the support part is rotatable upward with respect to the surface to be cleaned. The center of the suction part in the longitudinal direction. In a normal cleaning state in which the central axis in the longitudinal direction of the shaft and the connecting pipe is substantially vertical, the usability is high without the suction part rising due to the support part,
When the connecting part having the connecting pipe is rotated with respect to the suction part in a direction substantially horizontal to the surface to be cleaned, both the left and right sides of the suction tool can be brought into close contact with the wall surface, and dust that easily accumulates in the corners can be collected. It is possible to suck all, and it is possible to provide a suction tool for an electric vacuum cleaner that has high usability and excellent dust collection performance in all cleaning modes.

According to the second aspect of the present invention, the connecting portion is cleaned with respect to the suction portion until the central axis in the longitudinal direction of the suction portion and the central axis in the longitudinal direction of the connecting pipe are substantially parallel to each other. When the connecting portion having the connecting pipe is rotated with respect to the suction portion in the substantially horizontal direction with respect to the surface to be cleaned, it is possible to rotate the suction portion in the longitudinal direction of the suction portion. Since the central axis and the central axis in the longitudinal direction of the connecting pipe are approximately parallel, both the left and right sides of the suction device can be brought into close contact with the wall surface, and all dust that easily accumulates in the corners can be sucked in. Thus, it is possible to provide a suction tool for an electric vacuum cleaner having high usability and good dust collection performance.

According to a third aspect of the present invention, the connecting portion rotates in a direction substantially horizontal to the surface to be cleaned with respect to the suction portion, and the central axis of the suction portion in the longitudinal direction and the longitudinal direction of the connecting pipe. When the central axis of the direction becomes substantially parallel, the support part rotates upward with respect to the surface to be cleaned and is positioned above the suction part. When the suction part is rotated in a direction substantially horizontal to the cleaning surface, the support part is located above the suction part, so that both the left and right sides of the suction tool can be brought into close contact with the wall surface and accumulated in the corner. It is possible to suck all the dust that is easy to be provided, and it is possible to provide a suction tool for an electric vacuum cleaner that has high usability and excellent dust collection performance in all cleaning modes.

According to a fourth aspect of the present invention, in the connecting pipe, the central axis in the longitudinal direction of the connecting pipe is substantially parallel to the surface to be cleaned, and the central axis in the longitudinal direction of the connecting pipe is to be cleaned. The connecting pipe is rotatable with respect to the connecting portion until it is substantially vertical to the surface, and the connecting pipe has a low height when the central axis in the longitudinal direction of the connecting pipe is substantially parallel to the surface to be cleaned. The space can be cleaned, and when the central axis of the connecting pipe in the longitudinal direction is substantially perpendicular to the surface to be cleaned, it can be installed in a space-saving space when not cleaning. is there.

According to a fifth aspect of the present invention, in the structure in which the connecting portion rotates in a direction substantially horizontal to the surface to be cleaned with respect to the suction portion, the turning force of the connecting portion with respect to the suction portion is equal to or less than a predetermined value. When the connecting portion does not rotate with respect to the suction portion, the connecting portion is provided with a holding means that rotates with respect to the suction portion when the rotational force of the connecting portion with respect to the suction portion is larger than a predetermined value. Thus, when the suction tool collides with furniture, a wall, or the like, it is possible to prevent the suction section from being carelessly rotated to change from the horizontally long state to the vertically long state or vice versa.

According to a sixth aspect of the present invention, the support portion is rotatable upward with respect to the surface to be cleaned, and is provided with a biasing means for biasing the support portion toward the suction portion. In a normal cleaning state in which the central axis in the longitudinal direction of the suction part and the central axis in the longitudinal direction of the connection pipe are substantially vertical, the support part has high usability without the suction part rising and the connection pipe When the connecting part having is rotated in a direction substantially horizontal to the surface to be cleaned with respect to the suction part, the support part is securely fixed to the suction part, and both left and right surfaces of the suction tool are attached to the wall surface. It is possible to bring them into close contact with each other, and it is possible to suck all the dust that easily accumulates in the corners, and it is possible to provide a suction tool for an electric vacuum cleaner that has high usability and good dust collection performance in all cleaning modes.

According to a seventh aspect of the present invention, the supporting portion is connected to the connecting portion or the connecting pipe at the first rotation fulcrum, and the first rotation fulcrum is the support portion to be cleaned. It is provided behind the position where it contacts the surface, and it is possible to prevent the front part of the suction part from floating above the surface to be cleaned because the support part rotates when pushing the suction tool forward. Become.

In the invention according to claim 8 of the present invention, the connecting pipe is connected to the connecting portion at the second rotation fulcrum, and the second rotation fulcrum is located closer to the first rotation fulcrum than the first rotation fulcrum. It is provided at the front, and prevents the support part from rotating and the front side of the suction part floating above the surface to be cleaned when the handle is pushed down and the suction tool is pressed against the surface to be cleaned. It becomes possible.

According to a ninth aspect of the present invention, the portion of the supporting portion that contacts the surface to be cleaned is made of a soft material, and the connecting portion having a connecting pipe is sucked in a direction substantially horizontal to the surface to be cleaned. It is possible to prevent the surface to be cleaned and the suction portion from being scratched when rotating with respect to the portion.

According to a tenth aspect of the present invention, an agitator for scraping dust and an electric motor for driving the agitator are provided in the suction portion, and the effect of peeling dust adhering to the surface to be cleaned is improved, It is possible to suck, and the dust collection performance can be greatly improved.

According to an eleventh aspect of the present invention, the electric motor is arranged above the agitator, and the connecting portion having the connecting pipe is rotated with respect to the suction portion in a direction substantially horizontal to the surface to be cleaned. In this case, the width of the suction portion can be reduced to a small value, and even a narrower gap can be cleaned.

According to a twelfth aspect of the present invention, the communication passage of the suction device for an electric vacuum cleaner according to any one of the first to eleventh aspects is configured to communicate with an electric blower that emits suction air. (EN) An electric vacuum cleaner, which improves the usability of a suction tool, and is small in size, light in weight, and highly usable, and an electric vacuum cleaner using the suction tool.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
This will be described using 1.

FIG. 1 is a side view of a suction tool for an electric vacuum cleaner.

The connecting portion 5 is attached to the upper surface of the suction portion 4 having the opening 12 for sucking dust on the lower surface so as to be rotatable in a direction substantially horizontal to the surface 23 to be cleaned, and at the end of the connecting portion 5. Has a support portion 7 rotatably attached by a first rotation fulcrum 9. The support portion 7 has a surface formed of an elastomer, a soft resin such as polypropylene or vinyl chloride, or a soft material such as a raised cloth. It has a rotatable roller 17 that supports the connecting portion 5 by being in contact with the surface 23 to be cleaned. Further, the connecting pipe 6 is attached at a position closer to the suction section 4 than the first rotation fulcrum 9 via a second rotation fulcrum 10. The support 7 may be attached to the connecting pipe 6. Further, since the roller 17 is located closer to the suction portion 4 than the first rotation fulcrum 9, even if a force for pressing the connecting pipe 6 downward is applied, the support portion 7 is moved to the first rotation fulcrum 9. The structure is such that the front part of the suction part 4 does not float due to rotation about the fulcrum. The supporting portion 7 may be attached to the connecting pipe 6 and has the above effect. From the opening portion 12 to the connecting portion 5 and further to the connecting pipe 6, there is provided a passage portion 8 for transferring the dust sucked from the opening portion 12.

FIGS. 2, 3, and 4 are a top view, a front view, and an internal configuration diagram of a suction tool for an electric vacuum cleaner, respectively.

An electric motor 13 is built in the protruding portion of the suction portion 4, and this power drives the agitator 14 to rotate via a belt 24 to strongly remove dust attached to a surface to be cleaned such as a carpet. It is possible to scrape out the dust to the surface to be cleaned and suck the dust. Also agitator 1
4, the electric motor 13 is arranged above the suction unit 4
The front-to-back width of is smaller. Further, the central axis 4a in the longitudinal direction of the suction part 4, the connecting tube 6 and the central axis 6a in the longitudinal direction.
Are provided so as to be substantially vertical.

FIG. 5 and FIG. 6 respectively show the connecting portion of the suction member for the electric vacuum cleaner so that the central axis in the longitudinal direction of the suction portion and the central axis in the longitudinal direction of the connecting pipe are substantially parallel to each other. It is a side view and a top view when rotating in a direction substantially horizontal to the cleaning surface.

Until the central axis 4a in the longitudinal direction of the suction portion 4 and the central axis 6a in the longitudinal direction of the connecting pipe 6 are substantially parallel (in this embodiment, coincident), the connecting portion 5 is connected to the suction portion 4. Since it is attached to the surface to be cleaned 23 so as to be rotatable in a substantially horizontal direction, the suction tool 1 is moved laterally (the central axis in the longitudinal direction of the suction section 4 by applying a turning force to the suction section 4 to the connecting section 5). 4a direction). further,
The connecting part 5 rotates in a direction substantially horizontal to the surface to be cleaned 23 with respect to the suction part 4, and the central axis 4a in the longitudinal direction of the suction part 4 and the central axis 6a in the longitudinal direction of the connecting pipe 6 are substantially parallel to each other. (In the present embodiment, the supporting part 7 is the surface to be cleaned 2).
3 is rotated upward with respect to 3, and is located above the suction part 4, and the central axis 6a of the connecting tube 6 in the longitudinal direction of the connecting tube 6 is substantially perpendicular to the surface 23 to be cleaned. Since the central axis 6a in the longitudinal direction of the connecting pipe 6 can be rotated with respect to the connecting portion 5 until the central axis 6a in the longitudinal direction is substantially parallel to the surface 23 to be cleaned, the suction tool 1 can be installed in a space saving space with a small height and width. It is possible to insert, and it is possible to provide a suction tool for an electric vacuum cleaner that has high usability and good dust collection performance in all cleaning modes.

At this time, the rotating direction is opposite to the direction in which the heavy electric motor 13 is built in, and the suction portion 4 is stable even when the connecting portion 5 is applied with a turning force for the suction portion 4. And you can keep its position. Further, since the electric motor 13 is arranged above the agitator 14, the lateral width of the suction portion 4 around the central axis 4a in the longitudinal direction in the above state is suppressed to be small.

FIG. 7 and FIG. 8 are internal structural views from the bottom of the suction tool for the electric vacuum cleaner.

Two groove portions 19 are provided at positions where the connecting portion 5 and the suction portion 4 are connected to each other so as to form an angle of 90 degrees with each other. Alternatively, the holding means 15 made of a leaf spring made of resin is attached. The connecting portion 5 rotates in a direction substantially horizontal to the surface to be cleaned 23 with respect to the suction portion 4, and the central axis 4a in the longitudinal direction of the suction portion 4 and the central axis 6a in the longitudinal direction of the connecting pipe 6 are substantially parallel to each other. In the case of (matching in the present embodiment) or when the longitudinal center axis 4a of the suction portion 4 and the longitudinal center axis 6a of the connecting pipe 6 are substantially perpendicular to each other, the groove 19 holds the holding means. 15 enters and suction part 4
Even if it receives some external force due to collision with furniture etc. while using the vacuum cleaner, it plays a role in maintaining the current position.

FIG. 9 shows the internal structure of the first rotation fulcrum to which the supporting portion 7 is connected.

A biasing means 21 such as a spring is provided between the support portion 7 and the connecting portion 5, and the support portion 7 is rotatable upward with respect to the surface 23 to be cleaned, and the suction portion is also provided. It is biased in 4 directions. Therefore, in the normal cleaning state in which the longitudinal center axis 4a of the suction section 4 and the longitudinal center axis 6a of the connection pipe 6 are substantially vertical as described above, the suction section 4 is lifted by the support section 7. When the connecting portion 5 having the connecting pipe 6 is rotated with respect to the suction portion 4 in a direction substantially horizontal to the surface 23 to be cleaned, the suction portion of the support portion 7 4 can be fixed securely, both the left and right sides of the suction tool 1 can be brought into close contact with the wall surface, and all dust that easily accumulates in the corners can be sucked in, making it highly usable and dust collecting in all cleaning modes. It is possible to provide a suction tool for a vacuum cleaner having good performance.

10 and 11 show an overall view of the electric vacuum cleaner.

Reference numeral 2 denotes a dust collecting chamber for collecting the sucked dust, and 8 denotes passage portions 8 and 16 for transferring the sucked dust to the dust collecting chamber 2.
Is a handle portion, 20 is a power source battery, and 22 is an electric blower that emits suction air, and communicates with the suction tool 1 through the passage portion 8. When the central axis 6a of the connecting tube 6 in the longitudinal direction of the connecting tube 6 is substantially parallel to the surface 23 to be cleaned, as shown in the figure, the suction tool 1 can be inserted under the bed or table. Therefore, the dust on the surface to be cleaned can be firmly sucked. Further, when the central axis 6a in the longitudinal direction of the connecting pipe 6 is rotated to a state in which it is substantially vertical to the surface 23 to be cleaned, as shown in FIG. Can be installed.

Although the electric vacuum cleaner has been described as a broom-type rechargeable electric vacuum cleaner in the present embodiment, the general vacuum cleaner has the same structure regardless of the type or the power source. Can be adopted.

[0034]

According to the present invention, the usability of the suction tool is improved, and the suction tool for the electric vacuum cleaner, which is small in size and light in weight, and has high usability, and the electric vacuum cleaner using the suction tool can be provided.

[Brief description of drawings]

FIG. 1 is a side view of a suction tool for a vacuum cleaner, which illustrates an embodiment of the present invention.

FIG. 2 is a top view of the suction tool for the electric vacuum cleaner.

FIG. 3 is a front view of the suction tool for the electric vacuum cleaner.

FIG. 4 is an internal configuration diagram of the suction tool for the electric vacuum cleaner.

FIG. 5 is another side view of the suction tool for the electric vacuum cleaner.

FIG. 6 is another top view of the suction tool for the electric vacuum cleaner.

FIG. 7 is an internal configuration diagram from the bottom of the suction tool for the electric vacuum cleaner.

FIG. 8 is another internal configuration diagram from the bottom of the suction tool for the electric vacuum cleaner.

FIG. 9 is a detailed view of a support portion of the suction tool for the electric vacuum cleaner.

FIG. 10 is an overall view of the electric vacuum cleaner.

FIG. 11 is another overall view of the electric vacuum cleaner.

FIG. 12 (a) is an overall view of a conventional vacuum cleaner suction tool. (B) Another overall view of the suction tool for the electric vacuum cleaner

[Explanation of symbols]

4 Suction section 5 connection 6 connecting pipe 7 Support

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Saburo Kajikawa             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F-term (reference) 3B061 AA06 AA35

Claims (12)

[Claims] 1. A suction part having an opening for sucking dust on a surface to be cleaned, and a connecting pipe provided such that a central axis in the longitudinal direction of the suction part and a central axis in the longitudinal direction are substantially perpendicular to each other. A connection part that connects the suction part and the connection pipe; and a support part that is attached to the connection part or the connection pipe and supports the connection part or the connection pipe by contacting a surface to be cleaned, and the opening part. The connecting portion and the connecting pipe have a passage portion for transferring sucked dust, and the connecting portion is rotatable with respect to the suction portion in a direction substantially horizontal to the surface to be cleaned,
A suction tool for an electric vacuum cleaner, wherein the support portion is rotatable upward with respect to a surface to be cleaned. 2. The connecting portion is rotatable with respect to the suction portion in a substantially horizontal direction with respect to the surface to be cleaned until the central axis in the longitudinal direction of the suction portion and the central axis in the longitudinal direction of the connecting pipe are substantially parallel to each other. The suction tool for an electric vacuum cleaner according to claim 1, wherein 3. The connecting part rotates in a direction substantially horizontal to the surface to be cleaned with respect to the suction part, and the central axis in the longitudinal direction of the suction part and the central axis in the longitudinal direction of the connecting pipe are substantially parallel to each other. The suction tool for an electric vacuum cleaner according to claim 1 or 2, wherein the support portion rotates upward with respect to the surface to be cleaned and is positioned above the suction portion. 4. The connecting pipe is configured such that the central axis in the longitudinal direction of the connecting pipe is substantially parallel to the surface to be cleaned, and the central axis in the longitudinal direction of the connecting pipe is substantially vertical to the surface to be cleaned. The suction tool for an electric vacuum cleaner according to claim 1, wherein the suction tool is rotatable with respect to the connecting portion. 5. A structure in which the connecting part is rotated in a direction substantially horizontal to the surface to be cleaned with respect to the suction part, and when the turning force of the connecting part with respect to the suction part is below a predetermined value, the connecting part is the suction part. 5. The holding means, wherein the connecting portion does not rotate with respect to the suction portion, and the connecting portion rotates with respect to the suction portion when the rotational force of the connecting portion with respect to the suction portion is larger than a predetermined value. The suction device for an electric vacuum cleaner according to item 1. 6. The support portion is rotatable with respect to the surface to be cleaned in an upward direction, and is provided with a biasing means for biasing the support portion toward the suction portion. The suction tool for the electric vacuum cleaner according to. 7. The support portion is connected to a connecting portion or a connecting pipe at a first rotation fulcrum, and the first rotation fulcrum is provided rearward of a position where the support portion contacts the surface to be cleaned. The suction tool for an electric vacuum cleaner according to any one of claims 1 to 6. 8. The connecting pipe is connected to the connecting portion at a second rotation fulcrum, and the second rotation fulcrum is provided in front of the first rotation fulcrum. Suction tool for vacuum cleaner. 9. The suction tool for an electric vacuum cleaner according to claim 1, wherein a portion of the support portion that contacts the surface to be cleaned is made of a soft material. 10. The suction tool for a vacuum cleaner according to claim 1, wherein an agitator for scraping dust and an electric motor for driving the agitator are provided in the suction part. 11. The suction device for an electric vacuum cleaner according to claim 10, wherein the electric motor is arranged above the agitator. 12. An electric vacuum cleaner configured such that a communication passage of the suction device for an electric vacuum cleaner according to any one of claims 1 to 11 communicates with an electric blower that emits suction air.