JP3870795B2 - Electric vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner in which an attachment is detachably held on a vacuum cleaner main body, a hose, an extension pipe, and the like.
[0002]
[Prior art]
Conventionally, this type of attachment holding structure has been disclosed in Japanese Patent Application Laid-Open No. 6-217906, Japanese Patent Application Laid-Open No. 8-140903, Japanese Patent Application Laid-Open No. 2001-157651, and the like. A configuration in which the direction of the short side of the mouth is maintained is common.
[0003]
Hereinafter, a description will be given with reference to FIGS.
[0004]
Reference numeral 1 denotes a vacuum cleaner main body (hereinafter referred to as a main body) having a motor 2 that generates a suction force at the rear and a dust collection chamber 4 in which a dust collection bag 3 that accumulates dust sucked into the front is detachably attached. A floor nozzle 10 is connected to a suction port 5 formed in front of the dust collecting chamber 4 through a connection pipe 7, a tip pipe 8, and an extension pipe 9 of the hose 6.
[0005]
11 has a suction port 12 at one end and a connection port 13 at the other end, and the opening area of the suction port 12 is substantially rectangular with respect to the connection port 13 in order to clean a window sash, a gap between furniture, and the like. It is an attachment that has been narrowed down. Further, the outer periphery of the connection port 13 has a substantially circular shape, and is fitted to the inner periphery of the connection portion of the tip pipe 8 and the extension pipe 9.
[0006]
As a means for holding the attachment 11 when the attachment 11 is not used, a recess 14 is formed on the rear surface of the main body 1 as shown in FIG. 12, and the attachment 11 is held by the engagement rib A15, or as shown in FIG. The holder 16 can be attached to the top surface, and the attachment 11 is held on the holder 16 with the short side surface 17 of the suction port 12 facing the main body 1 side, or below the tip pipe 8 as shown in FIG. The attachment 11 was held on the formed engagement rib B18 and engagement rib C19 with the short side surface 17 of the suction port 12 facing the tip pipe 8 side.
[0007]
[Problems to be solved by the invention]
However, when the attachment 11 is held in the concave portion 14 of the main body 1 which is the holding structure of the conventional structure, it is necessary to reach to the rear surface of the main body 1 when the attachment 11 is attached or detached, and the attachment / detachment operation is difficult. . In view of this, the structure in which the attachment 11 is held on the top surface of the main body 1 or the tip pipe 8 portion has become common in recent years. The attachment 11 hits the desk or wall during cleaning because it is held, which may damage the desk or wall, and the attachment 11 is easy to come off. Also, it is difficult to hook a finger on the attachment 11, so the attachment 11 is removed. It had a problem that it was not easy to use.
[0008]
The present invention solves the above-described problems, and provides a highly usable vacuum cleaner in which a held attachment is difficult to come off during use, is easy to remove when using an attachment, and a surface to be cleaned is hard to be damaged. It is aimed.
[0009]
[Means for Solving the Problems]
To accomplish the above object, the suction cross section shape dust a substantially rectangular der Ru inlet at one end, has a cleaner body side and communicates with connected thereto connected port to the other end, the suction port An attachment having a small opening area with respect to the connection port, and a holding body for holding the attachment, and holding the longitudinal long side surface of the attachment on the outer side of the extension tube , Forming a holding part for holding the holding body on the outer wall of the extension pipe , and forming a front holding part for holding the suction port side of the attachment on the floor nozzle side of the extension pipe, the front holding part is From the floor nozzle side toward the suction port side, it is configured to gradually protrude from the outer shell of the extension pipe to hold the suction port, and the attachment of the vacuum cleaner main body, hose, extension pipe and other attachments from the outer shell Small protrusion Fried, less likely to hit in such as a desk or a wall during cleaning, fear is reduced scratch to a desk or wall, also, less that the attachment is removed from the holding unit. Furthermore, the finger can be easily hooked on the long side surface of the suction port, the attachment can be easily detached, the usability can be improved, and the surface to be cleaned can be prevented from being damaged. In addition, it is possible to prevent the attachment from sucking into the suction port, and there is less risk of scratching the desk or wall, etc., and the attachment is less likely to come off the holding part, thereby further improving the usability. .
[0010]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, the suction cross section shape dust a substantially rectangular der Ru inlet at one end, has a cleaner body side and communicates with connected thereto connected port to the other end, the suction An attachment having a small opening area with respect to the connection port, and a holding body for holding the attachment, and holding a long side surface in the longitudinal direction of the attachment on the outer side of the extension tube Forming a holding part for holding the holding body on the outer shell of the extension pipe, and forming a front holding part for holding the suction port side of the attachment on the floor nozzle side of the extension pipe, The structure is constructed so as to gradually protrude from the outer wall of the extension pipe toward the suction port side from the floor nozzle side to hold the suction port, and is attached from the outer wall of the vacuum cleaner main body, hose, extension pipe, etc. The protruding margin of is small Therefore, it becomes difficult per to a desk or wall during cleaning, fear is reduced scratch to a desk or wall, also, less that the attachment is removed from the holding unit. Furthermore, the finger can be easily hooked on the long side surface of the suction port, the attachment can be easily detached, the usability can be improved, and the surface to be cleaned can be prevented from being damaged. In addition, it is possible to prevent the attachment from sucking into the suction port, and there is less risk of scratching the desk or wall, etc., and the attachment is less likely to come off the holding part, thereby further improving the usability. .
[0011]
【Example】
(Reference Example 1)
Hereinafter, a first reference example of the present invention will be described with reference to FIGS.
[0012]
Reference numeral 21 denotes a vacuum cleaner main body (hereinafter referred to as a main body) having a dust collection chamber 23 in which a dust collection bag 22 for collecting dust sucked in the front side is disposed, a motor 24 for generating suction air for sucking dust in the rear, and the like. A floor nozzle 25 communicates with the dust collection chamber 23 of the main body 21 through a connection pipe 27, a tip pipe 28, and an extension pipe 29 of the hose 26. Reference numeral 30 denotes an attachment having a suction port 31 at one end and a tubular connection port 34 connected to the connection portion A32 of the tip pipe 27 of the hose 26 and the connection portion B33 of the extension pipe 28 at the other end. The attachment 30 has a reduced internal cross-sectional area on the suction port 31 side compared to the connection port 34, and the cross-section of the suction port 31 is formed in a substantially rectangular shape. Reference numeral 35 denotes a holding body having an opening 36 having an opening at one end and an engagement rib D37 at the other end, and a holding portion 38 and an engagement rib formed on the lower surface portion of the extension pipe 29 on the tip pipe 28 side. D37 is configured to be detachably engaged. The opening 36 engages and holds the connection port 34 of the attachment 30, and when attached to the holding portion 38 of the extension tube 29, the attachment 30 has the long side surface 39 of the suction port 31 on the outer periphery of the extension tube 29. The engaging rib D37 has a certain angle (θ1) with respect to the holding portion 38 so as to face each other and the tip of the suction port 31 is in contact with the outline of the extension tube 29.
[0013]
The operation of the above configuration is as follows.
[0014]
When cleaning is performed using the floor nozzle 25, the hose 26 is connected to the main body 21, the extension pipe 29 is connected to the connection portion A32 of the tip pipe 28, the floor nozzle 25 is connected to the connection portion B33, and the motor 24 is connected. Dust on the floor surface is sucked from the floor nozzle 25 by the suction force and collected in the dust bag 22 disposed in the dust collecting chamber 23 of the main body 21 through the extension pipe 29 and the hose 26.
[0015]
At this time, since the attachment 30 is not used, it is held and stored in the holding body 35 attached to the holding portion 38 of the extension pipe 29. The attachment 30 has the suction port 31 positioned in the front, the long side surface 39 of the attachment 30 faces the surface of the extension tube 29, and the end of the suction port 31 is in contact with the surface of the extension tube 29. The protrusion (h1) of the suction port 31 from the bottom is small, and it does not hit or hit the desk or wall during cleaning, so that the attachment 30 is difficult to come off and the surface to be cleaned is not damaged. Further, even when it hits a desk or wall during cleaning, the protrusion margin from the surface of the extension tube 29 of the attachment 30 is gradually increased from the front, so that it is difficult to be caught and the long side surface 39 of the attachment 30 can be slid. Therefore, the attachment 30 is difficult to come off and the surface to be cleaned is not damaged. Furthermore, since the width (W1) of the attachment 30 is smaller than the width (W2) of the extension tube 29, it is difficult to touch the attachment 30 from the side, and the attachment 30 is prevented from coming off during cleaning. Further, the extension tube 29 is formed in a substantially cylindrical shape, and as shown in FIG. 4, a space A40 is formed between the extension tube 29 and the suction port 31 of the attachment 30, and the long side surface 39 of the suction port 31 when the attachment 30 is attached and detached. The attachment 30 can be easily attached and detached.
[0016]
(Reference Example 2)
Next, a second reference example of the present invention will be described with reference to FIG. The same components as those in the first reference example are denoted by the same reference numerals, and the description thereof is omitted.
[0017]
The angle (θ2) of the engagement rib D37 of the holding body 35 is configured such that the suction port 31 of the attachment 30 is in pressure contact with the surface of the extension pipe 29.
[0018]
The operation of the above configuration is as follows.
[0019]
By attaching the suction port 31 to the surface of the extension tube 29 by the holding body 35, the suction port 31 is always pressed against the extension tube 29 side, and even if only the connection port 34 is held, the suction port 31 is reliably held. The holding structure of the suction port 31 becomes unnecessary, the holding structure is simplified, and damage to the surface to be cleaned by the holding part can be reduced. Moreover, the protrusion allowance (h2) of the suction inlet 31 from the extension pipe | tube 29 surface becomes further smaller, and the damage to a to-be-cleaned surface can be reduced more.
[0020]
( Reference Example 3 )
Next, a third reference example of the present invention will be described with reference to FIG. The same components as those in the first and second reference examples are denoted by the same reference numerals, and the description thereof is omitted.
[0021]
A connecting body A41, a connecting body B42, and a connecting body C43 having different angles for engaging with the holding portion 38 are formed on the holding body 35.
[0022]
The operation of the above configuration is as follows.
[0023]
By properly using the connecting body A41, the connecting body B42, and the connecting body C43 that are engaged with the holding portion 38 at different angles, the attachments 30 having different lengths and shapes can be attached, and the usability and the commonality can be improved. is there.
[0024]
(Example 1 )
Next, a first embodiment of the present invention will be described with reference to FIG. It should be noted that the above-described first to third ginseng Reference Example and same components are denoted by the same reference numerals, and description thereof is omitted.
[0025]
A front holding portion 44 is formed on the floor nozzle 25 side of the extension pipe 29 to hold the suction port 31 of the attachment 30 at an angle of the engagement rib D37 of the holding body 35. The front holding portion 44 extends from the floor nozzle 25 side. The suction port 31 is configured to protrude gradually from the surface of the extension pipe 29 toward the suction port 31 side to hold the suction port 31.
[0026]
The operation of the above configuration is as follows.
[0027]
When a desk or a wall or the like hits the attachment 30 during cleaning, the surface of the front holding portion 44 from the floor nozzle 25 side to the suction port 31 side hits the outer surface of the extension tube 29, but this surface gradually extends toward the attachment 30. Therefore, the front holding portion 44 and the attachment 30 do not stick together, and the surface to be cleaned is less likely to be damaged.
[0028]
(Reference Example 4 )
Next, a fourth reference example of the present invention will be described with reference to FIG. Incidentally, the first to third reference example, or the first actual施例the same components are denoted by the same reference numerals, and description thereof is omitted.
[0029]
A recess 45 larger than the thickness (H) of the tip of the suction port 31 is formed at a position where the suction port 31 of the attachment 30 of the extension pipe 29 is located, and before the tip of the suction port 31 is engaged in the recess 45. A holding portion 44 is formed.
[0030]
The operation of the above configuration is as follows.
[0031]
Since the tip of the suction port 31 does not protrude from the surface of the extension tube 29, there is no risk of sticking to the attachment 30, the attachment 30 is difficult to come off and the surface to be cleaned is not damaged, and the tip of the suction port 31 is prevented by the front holding portion 44. By being held, the attachment 30 can be held more reliably.
[0032]
(Reference Example 5 )
Next, a fifth reference example of the present invention will be described with reference to FIG. Incidentally, the first to fourth reference example, or the first actual施例the same components are denoted by the same reference numerals, and description thereof is omitted.
[0033]
The tip pipe 28 is formed in a curved shape with a constant angle (θ3), and the pipe A46 on the extension pipe 29 side and the pipe B47 on the hose 26 side, and the engagement ribs between the suction port 31 and the connection port 34 of the attachment 30 F48 and an engagement rib G49 are formed on the pipe A46 and the pipe B47, respectively.
[0034]
The operation of the above configuration is as follows.
[0035]
When the attachment 30 is attached to the tip pipe 28, a substantially triangular space B50 is formed by the attachment 30, the pipe A46, and the pipe B47, and the attachment 30 can be attached to and detached from the space B50 to improve usability. .
[0036]
(Reference Example 6 )
Next, a sixth reference example of the present invention will be described with reference to FIG. Incidentally, the first to fifth reference example, or the first actual施例the same components are denoted by the same reference numerals, and description thereof is omitted.
[0037]
A pipe A46 on the extension pipe 29 side and a pipe B47 on the hose 26 side are formed substantially linearly at the tip pipe 28, and the engagement rib F48 and the engagement rib G49 of the suction port 31 of the attachment 30 and the connection port 34 respectively. It is formed in pipe A46 and pipe B47.
[0038]
The operation of the above configuration is as follows.
[0039]
The pipe A46 and the pipe B47 are formed in a substantially linear shape, and when the attachment 30 is attached to the tip pipe 28, the gap between the attachment 30 and the pipe A46 and the pipe B47 is small, so that the extension pipe 29 is substantially parallel to the floor surface. It becomes possible to operate at (floor surface height), the extension pipe 29 can be inserted to a deeper position at a narrow height such as under the bed, and the operability can be further improved.
To do.
[0040]
【The invention's effect】
According to the present invention, since the projection margin of the attachment from the outer casing of the vacuum cleaner main body, hose, extension tube, etc. is small, it becomes difficult to hit the desk or wall during cleaning, and the risk of damaging the desk or wall is reduced. In addition, the attachment is less likely to come off the holding portion. In addition , it is easy to hook a finger on the long side of the suction port, it is easy to remove the attachment, the usability can be improved, the surface to be cleaned can be prevented from being scratched, and the attachment can be pushed to the suction port. It is possible to prevent overhanging and further improve the usability, and the effect is great.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a vacuum cleaner showing a first reference example in the present invention. FIG. 2 is a side view of the main part of the vacuum cleaner. FIG. part perspective view a third reference example in FIG. 4 a-a sectional view of FIG. 2 and FIG. 5 partial side view of the electric vacuum cleaner of a second reference example of the present invention [6] the present invention FIG. 7 is a perspective view of the main part of the vacuum cleaner showing the first embodiment of the present invention. FIG. 8 is a perspective view of the vacuum cleaner showing the fourth reference example of the present invention. Cross-sectional view of main parts [FIG. 9] Cross-sectional view of main parts of a vacuum cleaner showing a fifth reference example in the present invention [FIG. 10] Side view of main parts of a vacuum cleaner showing a sixth reference example of the present invention [FIG. 11] Overall perspective view of a conventional vacuum cleaner [Fig. 12] Perspective view of an attachment mounting portion of the vacuum cleaner [Fig. 13] FIG. 14 is a perspective view of another attachment mounting portion of a vacuum cleaner. FIG. 14 is a partially cutaway side view of another attachment mounting portion of a conventional vacuum cleaner.
28 End Pipe 29 Extension Pipe 30 Attachment 31 Suction Port 34 Connection Port 35 Holding Body 37 Engaging Rib D
38 Holding part 39 Long side surface 40 Space A
41 Connection A
42 Connection B
43 Connection C
44 Front holding part 45 Recess 46 Pipe A
47 Pipe B
48 Retaining Rib F
49 Holding rib G
50 Space B

Claims (1)

Aspirated sectional shape dust a substantially rectangular der Ru inlet at one end, has a cleaner body side and communicates with connected thereto connected port to the other, reducing the opening area of said suction port to said connection port An attachment formed, and a holding body for holding the attachment, the long side surface in the longitudinal direction of the attachment being positioned on the outer side of the extension pipe, and holding the holding body on the outer side of the extension pipe A holding part is formed, and a front holding part that holds the suction port side of the attachment is formed on the floor nozzle side of the extension pipe, and the front holding part is directed from the floor nozzle side toward the suction port side. The vacuum cleaner configured to gradually protrude from the outer shell of the extension pipe to hold the suction port.

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