CN112752531A - Suction piece and electric dust collector - Google Patents

Abstract

The suction tool (2) has an extension pipe connection part (6) capable of being connected to an extension pipe, and a suction tool main body (4). The suction tool (2) is provided with a rotator arrangement space (10) at a position behind the suction tool main body (4) and above the upper surface of the suction tool main body (4), the tip of the extension pipe connecting part (6) is positioned in the rotator arrangement space (10), and a mound part (7) which is a part protruding upward from the upper surface of the suction tool main body (4) below the rotator arrangement space (10) is provided at a position in front of the rotator arrangement space (10) in the suction tool main body (4). The tip of the extension pipe connecting part (6) is connected to the suction tool main body (4) so as to be rotatable with respect to the suction tool main body (4) in the rotating body arrangement space (10). Thus, the suction tool (2) can be easily rotated and moved by a user, and damage near the connection part between the suction tool (2) and the extension pipe can be avoided.

Description

Suction piece and electric dust collector

Technical Field

The invention relates to a suction member and an electric vacuum cleaner.

Background

A large number of techniques related to a vacuum cleaner, a so-called stick type vacuum cleaner, in which a suction tool is connected to one end of an extension pipe and a grip portion for a user to grip is provided at the other end, are disclosed (for example, see patent document 1).

Further, there is disclosed an electric vacuum cleaner in which a suction port body and a suction pipe are connected to each other on a surface corresponding to one end in a longitudinal direction of the suction port body (see, for example, patent document 2).

However, in the vacuum cleaner disclosed in patent document 2, since the suction port body is coupled to the suction pipe, there is a possibility that the force is not sufficiently transmitted even when the user wants to press the suction port body against the floor surface.

In the electric vacuum cleaner of patent document 2, when the user pushes the suction tool forward, the tip of the suction inlet body may collide with furniture or the like. At this time, excessive force is applied to the connection portion between the suction port body and the suction pipe, and the connection portion between the suction port body and the suction pipe may be broken.

In the vacuum cleaner of patent document 2, only the suction port body is connected to the suction pipe. Therefore, the user cannot easily perform the handle operation to rotate, advance, retreat, and the like the suction port body in a desired direction.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 4-122346

Patent document 2: japanese laid-open patent publication No. 2016-214508

Disclosure of Invention

The invention provides a suction tool, which comprises an extension pipe connecting part capable of being connected with an extension pipe and a suction tool main body. The suction tool has a rotor arrangement space formed at a position behind and above the upper surface of the suction tool main body, the tip of the extension pipe connecting portion is located in the rotor arrangement space, and a mound portion as a portion protruding upward from the upper surface of the suction tool main body below the rotor arrangement space is provided at a position in front of the rotor arrangement space in the suction tool main body. The tip of the extension pipe connecting portion is connected to the inhaler body so as to be rotatable with respect to the inhaler body in the rotor arrangement space.

According to this configuration, the suction tool main body can be smoothly rotated with respect to the extension pipe. In the rotating body arrangement space located on the upper surface of the inhaler body and behind the inhaler body, the tip of the extension pipe connecting portion is connected to the inhaler body. Therefore, excessive force can be prevented from acting on the surface of the one end of the suction piece main body. This can avoid damage to the suction material.

Further, the electric vacuum cleaner of the present embodiment includes: a handle part having a dust collecting part, a suction motor and a power supply part; an extension tube; and the above-mentioned suction member. The extension pipe is connected with a handle part at one end part, and is connected with a suction piece at the other end part.

According to this configuration, excessive force is prevented from acting on the surface of the one end of the suction tool main body, and the suction tool can be prevented from being damaged more reliably.

Drawings

Fig. 1 is a side view of an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 2 is a side view of a suction member of the electric vacuum cleaner.

Fig. 3 is a top view of a suction member of the electric vacuum cleaner.

Fig. 4 is a bottom view of the suction member of the electric vacuum cleaner.

Fig. 5 is a perspective view of a suction member of the electric vacuum cleaner.

Fig. 6 is a perspective view of a suction member of the electric vacuum cleaner.

Fig. 7 is a perspective view of a suction member of the electric vacuum cleaner.

Fig. 8 is a perspective view of a suction member of the electric vacuum cleaner.

Fig. 9 is a cross-sectional view of the suction member of the electric vacuum cleaner.

Fig. 10 is a side view of the electric vacuum cleaner.

Fig. 11 is a perspective view of the electric vacuum cleaner shown in fig. 10 in a state where the handle portion is rotated in the direction of arrow E.

Fig. 12 is a perspective view of the electric vacuum cleaner shown in fig. 10 in a state where the handle portion is rotated in the direction of arrow F.

Fig. 13 is a perspective view showing the operation of the suction tool when the grip portion and the suction tool of the electric vacuum cleaner are rotated.

Fig. 14 is a perspective view showing the operation of the suction tool when the grip portion and the suction tool of the electric vacuum cleaner are rotated.

Fig. 15 is a perspective view showing the operation of the suction tool when the grip portion and the suction tool of the electric vacuum cleaner are rotated.

Fig. 16 is a perspective view of the handle portion of the electric vacuum cleaner.

Fig. 17 is a perspective view showing a state in which a user grips a grip portion of the electric vacuum cleaner.

Fig. 18 is a cross-sectional view of the handle portion of the electric vacuum cleaner.

Fig. 19 is a plan view of the grip portion of the electric vacuum cleaner as viewed from above.

Fig. 20 is a plan view of the grip portion of the vacuum cleaner as viewed from below.

Fig. 21 is a perspective view of the handle portion of the electric vacuum cleaner.

Fig. 22 is a left side view of the handle portion of fig. 19 as viewed from the left direction.

Fig. 23 is a right side view of the handle portion of fig. 19 as viewed from the right direction.

Fig. 24 is a side view showing a state where the electric vacuum cleaner is standing on a wall or the like.

Fig. 25 is a perspective view of the front portion of the electric vacuum cleaner as viewed from obliquely right above.

Fig. 26 is a perspective view of the front portion of the electric vacuum cleaner viewed from diagonally above and to the left.

Fig. 27 is a perspective view of the front portion of the electric vacuum cleaner as viewed from obliquely right below.

Fig. 28 is a perspective view of the middle portion and the rear portion of the electric vacuum cleaner as viewed from obliquely right below.

Fig. 29 is a perspective view of the handle portion of the vacuum cleaner as viewed from diagonally right and rearward.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same or corresponding portions are denoted by the same reference numerals, and redundant description thereof is omitted. The present invention is not limited to the present embodiment.

(embodiment mode)

Hereinafter, a schematic configuration of the electric vacuum cleaner according to the present embodiment will be described with reference to fig. 1.

Fig. 1 is a perspective view of an electric vacuum cleaner according to the present embodiment.

As shown in fig. 1, the electric vacuum cleaner of the present embodiment includes an extension pipe 1, a suction tool 2, a handle portion 3, and the like. A suction member 2 is connected to the top end of the extension pipe 1. On the other hand, a grip portion 3 is connected to the rear end of the extension pipe 1 and is gripped and operated by a user. That is, the user can move the electric vacuum cleaner by holding the grip portion 3.

The extension pipe 1 is desirably formed to be extendable and retractable, but may be formed not to be extendable and retractable. In the present embodiment, the structure in which the length of the extension pipe 1 is about 65cm is described as an example, but the length is not limited to this. The extension pipe 1 may be short, for example, 25 to 50cm long, and may be constituted by the extension pipe 1.

The extension pipe 1 is formed of a material such as aluminum alloy, ABS resin, PP (polypropylene), or the like. The housing of the inlet 2 is formed of a material such as ABS resin, PP (polypropylene), PC (polycarbonate), or the like. The case of the grip portion 3 is formed of, for example, ABS resin, PP (polypropylene), PC (polycarbonate), or the like. The materials of the extension tube 1, the housing of the suction tool 2, and the housing of the grip portion 3 are merely examples, and are not limited thereto.

The suction tool 2 has a suction port 9 (see fig. 4) for sucking dust formed on the back surface (lower side) side of the suction tool main body 4 (see fig. 2). The handle portion 3 includes a power supply portion 25 (see fig. 18), a suction motor 24 (see fig. 18), a dust collection portion 23 (see fig. 18), and the like. The handle portion 3 has an operation portion 17 (see fig. 16) disposed on an outer peripheral side surface thereof, and the operation portion 17 includes a power button 18 (see fig. 16) for turning on or off the driving of the suction motor 24, and the like.

When the user operates the power button 18, the suction motor 24 is driven to generate suction air. Dust is sucked from the suction port 9 of the suction piece 2 by the suction air. The dust collected by suction is received in the dust collecting part 23 in the handle part 3 through the extension pipe 1.

The dust collecting unit 23 may be provided with a dust bag, or may be provided with a cyclone type dust collecting unit.

The electric vacuum cleaner is configured as described above.

Next, the structure of the suction tool 2 of the electric vacuum cleaner will be described with reference to fig. 2 to 5.

Hereinafter, for example, as shown in the paper surface of fig. 2, the side of the suction tool 2 on which the extension pipe connecting portion 6 is disposed is referred to as the rear side or the upper side, and the opposite side is referred to as the front side or the lower side. As shown in fig. 3, the left side and the right side of the inlet 2 when viewed from the front are described as the left and right sides, respectively. However, when the user views the handle portion 3 while holding the handle portion 3 during cleaning, the right direction corresponds to the left side, and the left direction corresponds to the right side.

Figure 2 is a side view of the suction piece 2 shown in figure 1. Figure 3 is a top view of the suction piece 2 shown in figure 2. Fig. 4 is a bottom view of the suction member 2. Fig. 5 is a perspective view of the suction piece 2.

As shown in fig. 2 and 3, the inhaler 2 of the present embodiment includes an inhaler body 4, a rotary body 5, an extension pipe connecting portion 6, and the like. The rotating body 5 is connected to the inhaler body 4 so as to be rotatable with respect to the inhaler body 4 at the rear of the inhaler body 4. The extension pipe connecting portion 6 is clearance-fitted to the rotating body 5 so as to be rotatable with respect to the rotating body 5. The extension pipe 1 of the electric vacuum cleaner is detachably connected to the extension pipe connecting portion 6.

The upper surface of the inhaler body 4 is provided with a mound 7, the mound 7 is formed of a curved surface gradually rising gently from the front end to the middle portion, and the mound 7 is formed at a predetermined height from the middle portion to a portion to which the rotating body 5 is connected.

As shown in fig. 4, the inlet 2 includes an inlet 9 for sucking dust formed on a lower surface side of a substantially central portion (including the center) of the inlet main body 4.

The mouthpiece body 4 of the mouthpiece 2 of the present embodiment shown in fig. 5 is formed to have a length of, for example, about 16cm in the longitudinal direction (front-rear direction) and about 6cm in the short-side direction (left-right direction). The mouthpiece main body 4 has a recess formed in an arc shape, for example, in a range of a length of about 3cm from one end surface on the rear side in the longitudinal direction toward the inside of the mouthpiece 2. A rotating body 5 is disposed in the recessed portion. In the present embodiment, the position upward from the recessed portion will be referred to as "rotor arrangement space 10" hereinafter. It should be noted that the above-mentioned length is an example, and it is needless to say that the length may be designed to be different.

The inhaler body 4 has a 1 st recess 11 having a curved cross section below the rotor arrangement space 10. The 1 st recessed portion 11 includes a pedestal portion 12 formed in a flange shape on both left and right sides. Thereby, the rotating body 5 is rotatably connected to the 1 st recess 11 at the rear end portion of the mound 7 of the inhaler body 4.

The lateral side surfaces of the rotating body 5 are formed by curved surfaces. Thereby, the rotating body 5 is rotatably connected to slide on the curved surface of the 1 st recess 11 of the inlet body 4 or to have a slight gap from the 1 st recess 11. That is, the rotating body 5 is rotatably coupled in the left and right direction of the inlet main body 4. That is, the rotating body 5 can rotate from the direction of arrow a to the direction of arrow B or from the direction of arrow B to the direction of arrow a shown in fig. 5.

As described above, the extension pipe connecting portion 6 is rotatably connected to the rotating body 5. The extension pipe connecting portion 6 will be described in detail later. In this case, in fig. 5, one end of the extension pipe connecting portion 6 can be regarded as being disposed in the rotor disposition space 10 of the mouthpiece main body 4.

The suction tool 2 of the electric vacuum cleaner is configured as described above.

Next, the operation (movement) of the rotating body 5 of the suction tool 2 will be described with reference to fig. 6 to 8.

Fig. 6 is a perspective view showing a state where the rotary body 5 of the suction tool 2 shown in fig. 5 is rotated in the arrow B direction. Fig. 7 is a perspective view showing a state where the rotary body 5 of the inhalation piece 2 shown in fig. 5 is rotated in the arrow a direction. Fig. 8 is a perspective view showing an operation of rotating the rotating body 5 of the inhaler 2 in the arrow C direction and the arrow D direction.

As shown in fig. 6, when the rotary body 5 is rotated in the arrow B direction, the extension pipe connection portion 6 abuts against one pedestal portion 12 of the 1 st recess 11 (the pedestal portion 12 existing on the far side (left side) in the left-right direction of the inhaler 2 in fig. 6). This restricts further rotation of the rotating body 5 in the direction B.

As shown in fig. 7, when the rotating body 5 is rotated in the arrow a direction, the extension tube connecting portion 6 abuts against the other seat portion 12 of the 1 st recess 11 (the seat portion 12 existing on the near side (right side) in the left-right direction of the inhaler 2 in fig. 7). Thereby, further rotation of the rotating body 5 in the a direction is restricted.

That is, the rotating body 5 rotates, for example, within a range of an angle of about 180 degrees from the state shown in fig. 6 to the state shown in fig. 7 or from the state shown in fig. 7 to the state shown in fig. 6. Therefore, the rotating body 5 is connected to the suction inlet main body 4 with a shaft (not shown) extending in the front-rear direction of the suction inlet 2 as a rotating shaft. Thereby, the rotary body 5 rotates in the left-right direction of the suction tool 2 by an angle of about 180 degrees about the rotation axis as a fulcrum.

As shown in fig. 8, the rotor 5 has a rotor opening 8 that opens from the rear of the rotor 5 (in the direction of arrow D shown in fig. 8) to the front of the rotor 5 (in the direction of arrow C shown in fig. 8). The extension pipe connecting portion 6 has a substantially hemispherical (including hemispherical) tip portion 6a (a portion of the extension pipe connecting portion 6 on the side of the inhaler body 4). The distal end portion 6a of the extension pipe connecting portion 6 may be formed in a substantially spherical shape (including a spherical shape) as long as it can rotate. The rotating body 5 has a space formed therein for receiving a substantially hemispherical (including hemispherical) tip portion 6a of the extension pipe connecting portion 6 in a clearance fit manner. In the present embodiment, the space will be hereinafter referred to as "2 nd recess 13".

That is, the tip portion 6a of the extension pipe connecting portion 6 is clearance-fitted to the 2 nd recess 13. Therefore, the extension pipe connecting portion 6 can be loosely fitted rotatably in the front-rear direction of the suction tool 2, that is, in the direction of arrow D from arrow C shown in fig. 8 or in the direction of arrow C from arrow D.

In the above, the structure in which the tip portion 6a of the extension pipe connecting portion 6 is loosely fitted into the 2 nd recess 13 of the rotating body 5 has been described as an example, but the present invention is not limited thereto. For example, the distal end portion 6a of the extension pipe connecting portion 6 may be connected to the rotating body 5 so as to be rotatable with respect to the rotating body 5.

Specifically, when the extension pipe connection portion 6 is rotated in the direction of the arrow C shown in fig. 8, the extension pipe connection portion 6 is erected at an angle of substantially 90 degrees (including 90 degrees) with respect to the inlet main body 4 as shown in fig. 5. That is, the side surface of the extension pipe connection portion 6 on the front side abuts on the end portion 8a of the rotating body opening portion 8 on the front side by the rotation of the extension pipe connection portion 6. Thereby, the extension pipe connecting portion 6 is restricted from further rotating in the direction of the arrow C shown in fig. 8 beyond an angle of substantially 90 degrees with respect to the suction inlet main body 4.

On the other hand, when the extension pipe connection portion 6 is rotated in the direction of the arrow D shown in fig. 8, the extension pipe connection portion 6 is inclined at an angle of approximately 140 degrees (including 140 degrees) with respect to the suction inlet main body 4 (an angle of approximately 40 degrees counterclockwise with respect to the floor surface) (see fig. 9). That is, the side surface of the extension pipe connection portion 6 on the rear side abuts on the end portion 8b of the rotating body opening 8 provided on the rear side of the rotating body 5 by the rotation of the extension pipe connection portion 6 in the arrow D direction. Thereby, the extension pipe connecting portion 6 is restricted from further rotating in the direction of arrow D in fig. 8 beyond an angle of approximately 140 degrees with respect to the suction inlet main body 4.

In the above embodiment, the rotation of the extension pipe connecting portion 6 relative to the suction inlet main body 4 by an angle exceeding approximately 140 degrees in the direction of the arrow D in fig. 8 has been described as an example, but the angle is not limited to this, and the rotation may be limited to another angular range.

As described above, in the suction tool 2 and the electric vacuum cleaner including the suction tool 2 according to the present embodiment, the rotating body 5 is disposed in the rotating body disposition space 10 of the suction tool main body 4. The extension pipe connecting portion 6 is in clearance fit with the rotating body 5. Therefore, when the user grips the grip portion 3 and pushes the vacuum cleaner nozzle 2 forward, the user's force is reliably transmitted to the extension pipe 1, the extension pipe connecting portion 6, the rotating body 5, and the nozzle body 4. This makes it possible to construct an electric vacuum cleaner that can easily push the suction tool 2 forward and can easily perform cleaning.

Here, if the rotating body 5 is configured to slide on the upper surface of the 1 st recess 11 provided at the rear of the inhaler body 4, the force of the user is reliably transmitted from the rotating body 5 to the inhaler body 4.

On the other hand, in the case of a configuration in which the rotor 5 has a slight gap with the upper surface of the 1 st recess 11 provided at the rear of the inhaler body 4, since the rotor 5 is made of a material having elasticity such as resin, when the user operates the inhaler, the force of the user is transmitted to the rotor 5, the rotor 5 is elastically deformed, the rotor 5 is brought into contact with the upper surface of the 1 st recess 11, and the force of the user is reliably transmitted from the rotor 5 to the inhaler body 4.

Further, if the user holds the grip portion 3 and applies a strong force to perform cleaning, the elastic force of the rotating body 5 causes the rotating body 5 to abut on the 1 st recess 11, and the force of the user is transmitted not only to the connecting portion between the extension tube connecting portion 6 and the inhaler body 4 but also dispersed to the 1 st recess 11.

Therefore, an excessive load is not easily applied to the connecting portion of the extension pipe connecting portion 6 and the suction inlet main body 4. As a result, the occurrence of damage at the connection portion between the extension pipe connection portion 6 and the suction tool main body 4 can be greatly suppressed.

The suction tool 2 and the electric vacuum cleaner including the suction tool 2 according to the present embodiment also have the following effects.

First, as shown in fig. 2, the rotating body 5 is disposed so as not to protrude rearward from the rear portion of the inlet main body 4. Therefore, the beauty of the mouthpiece body 4 is improved.

The extension pipe connecting portion 6 is connected to the suction tool 2 so as to be rotatable in the front-rear direction, i.e., in the direction of arrow D from arrow C shown in fig. 8. The extension pipe connecting portion 6 is connected to the suction tool 2 so as to be rotatable in the right-left direction, i.e., in the direction of arrow B from arrow a shown in fig. 7. That is, the extension pipe connecting portion 6 is connected to the inlet main body 4 to be rotatable with respect to the inlet main body 4 in any one of the front-rear direction and the left-right direction of the inlet 2. Therefore, the user can rotate the suction tool 2 in various directions according to the situation to perform cleaning. This significantly improves the degree of freedom of operation of the electric vacuum cleaner as compared with conventional electric vacuum cleaners.

The inhaler body 4 has a mound 7 whose upper surface is formed in a smooth curve from a substantially central portion (including a central portion) in the front-rear direction toward the tip. Thus, even if the mound 7 of the inhaler body 4 collides with furniture or the like, for example, damage to the furniture or the like can be suppressed. Further, the curved shape of the mound 7 improves the appearance. Further, the suction tool body 4 can be easily inserted into a narrow place and cleaned by the smooth curved shape.

Next, the internal structure of the inlet 2 will be described with reference to fig. 9. Fig. 9 is a side cross-sectional view of the inhalation piece 2 according to the present embodiment.

As shown in fig. 9, the extension pipe connecting portion 6 has a tip portion 6a of a substantially hemispherical shape (including a hemispherical shape), and the tip portion 6a is clearance-fitted to the rotating body 5. Therefore, the extension pipe connecting portion 6 can rotate in the front-rear direction of the inhaler body 4 with respect to the rotating body 5.

The front end portion of the rotor 5 includes, for example, a rotor fitting portion 14 having a concave-convex shape. On the other hand, the mouthpiece main body 4 of the mouthpiece 2 includes, for example, a mouthpiece fitting portion 15 having a concave-convex shape at a portion connected to the tip end portion of the rotating body 5. The rotor fitting portion 14 and the suction tool fitting portion 15 are rotatably fitted to each other. Thereby, the rotary body 5 can rotate in the right and left direction of the inlet main body 4 with respect to the inlet main body 4.

The inlet body 4 has an inlet 9 formed in the bottom surface. The suction port 9, the flow path 16 in the suction device main body 4, the interior of the rotary body 5, and the interior of the extension pipe connecting portion 6 communicate with each other via spaces formed therein. Therefore, the dust sucked from the floor surface or the like through the suction port 9 passes through these spaces, and then passes through the space inside the extension pipe 1 to be collected in the dust collection unit 23 of the handle unit 3 (see fig. 18).

Further, although not particularly mentioned above, a sensor (so-called dust sensor) having a light emitting element (light emitting portion) and a light receiving element (light receiving portion) for detecting dust may be disposed at any position of the flow path 16 in the inhaler body 4, the inside of the rotating body 5, and the inside of the extension pipe connecting portion 6. In this case, a light Emitting unit, for example, an led (light Emitting diode) that emits light when the sensor detects dust, may be provided on the outer surface of the suction material body 4. Specifically, the light emitting portion is provided on the outer surface of the inhaler body 4, for example, on the hill portion 7, and a power source (for example, a secondary battery) for driving the sensor and the light emitting portion is disposed inside the inhaler body 4. Thus, the user can easily recognize whether or not dust is attracted to the inhaler body 4 by the light emission of the light emitting section. The portion of the inhaler body 4 on which the light emitting portion is provided is not limited to the mound 7, and may be any portion where the light emitting portion is provided.

The sensor is not limited to a sensor that detects the passage of dust between the light emitting element and the light receiving element, and may be, for example, a sensor that detects the collision of dust.

The interior of the suction piece 2 is configured as described above.

Next, the operation (movement) of the inhaler 2 in accordance with the turning operation of the handle portion 3 will be described with reference to fig. 10 to 12.

Fig. 10 is a side view of the electric vacuum cleaner. Fig. 11 is a perspective view of the electric vacuum cleaner in a state where the handle portion 3 is rotated in the direction of arrow E. Fig. 12 is a perspective view of the electric vacuum cleaner in a state where the handle portion 3 is rotated in the direction of arrow F.

Specifically, when the user rotates the grip portion 3 in the direction of the arrow E in fig. 10 (rotates to the right side as viewed from the user gripping the grip portion 3) while gripping the grip portion 3, the front side of the inhaler 2 also rotates in the direction of the arrow E (rotates to the right side as viewed from the user gripping the grip portion 3) as shown in fig. 11.

On the other hand, when the user rotates the grip portion 3 in the direction of the arrow F in fig. 10 (rotates to the left side as viewed from the user gripping the grip portion 3) while gripping the grip portion 3, the front side of the inhaler 2 also rotates in the direction of the arrow F (rotates to the left side as viewed from the user gripping the grip portion 3) as shown in fig. 12.

That is, when the user rotates the grip portion 3 to the right (in the direction of the arrow E), the inhaler 2 also rotates to the right (in the direction of the arrow E). When the handle portion 3 is rotated to the left (in the direction of the arrow F), the inhaler 2 is also rotated to the left (in the direction of the arrow F). Therefore, the user can rotate the inhaler 2 in a desired direction (in the same direction as the handle portion 3) by simply rotating the handle portion 3 in the left-right direction.

The operation of the inhaler 2 when the user rotates in the direction of arrow F in fig. 10 while holding the grip portion 3 will be described in detail below with reference to fig. 13 to 15.

Fig. 13 to 15 are perspective views showing the operation of the inhaler 2 when the grip portion 3 and the inhaler 2 are rotated toward the arrow G (toward the left side as viewed from the user who grips the grip portion 3).

First, when the user rotates the grip portion 3 to the left (in the direction of arrow F in fig. 10), the extension pipe connecting portion 6 is also rotated to the side of arrow G as shown in fig. 13. At this time, as shown in fig. 14, the rotating body 5 rotates in the direction of arrow H as the extension pipe connecting portion 6 rotates. The extension pipe connecting portion 6 further rotates forward (in the direction of arrow I) and abuts against the end portion 8a of the rotating body opening portion 8. Thereafter, when the extension pipe connecting part 6 is further rotated, as shown in fig. 15, the suction tool main body 4 and the extension pipe connecting part 6 are in a state of being substantially perpendicular (including perpendicular) to each other. That is, the inhaler body 4 and the extension tube connecting portion 6 are in a substantially L-shaped state (including an L-shaped state).

As described above, when the grip portion 3 is rotated to the left side as viewed from the user who grips the grip portion 3, the inhaler 2 is also rotated to the left side.

On the other hand, when the handle portion 3 is rotated to the right side as viewed from the user who grips the handle portion 3, the inhaler 2 is also rotated to the right side. That is, the same operation as in the case of turning the handle portion 3 to the left is performed when turning the handle portion 3 to the right, and therefore, the description thereof is omitted.

Next, an external configuration of the grip portion 3 will be described with reference to fig. 16.

Fig. 16 is a perspective view of the handle portion 3. As described above, the entire handle portion 3 is formed of, for example, ABS resin, PP (polypropylene), or the like.

As shown in fig. 16, the handle portion 3 includes an extension pipe connecting portion 42 attached to the tip end. The extension pipe connecting portion 42 is formed of, for example, an aluminum alloy or the like, and is connected to the extension pipe 1.

The user usually cleans the extension pipe 1 by connecting the extension pipe connecting portion 42. However, the electric vacuum cleaner of the present embodiment can also perform cleaning only with the handle portion 3 without any member being connected to the extension pipe connecting portion 42. That is, the handle portion 3 can be used as a so-called hand-held electric vacuum cleaner. In this case, the user can use the extension pipe connecting portion 42 of the handle portion 3 by connecting a suction nozzle (not shown) thereto.

The handle portion 3 includes an operation portion 17 disposed on the upper surface side. The operation unit 17 includes a power button 18 as an input unit, a power lamp 19 as a display unit, a trash lamp 20, and the like. The power button 18 starts or stops driving of the suction motor 24 (see fig. 18) by, for example, a pressing operation. The power supply lamp 19 indicates whether or not power is still present in the power supply unit 25 (see fig. 18), whether or not charging is performed, or the like. The dust disposal lamp 20 indicates whether or not the dust collecting unit 23 (see fig. 18) is filled with dust.

The operation unit 17 of the present embodiment includes an input unit for receiving an input operation from a user, a display unit for displaying a state of the electric vacuum cleaner to the user, and the like, but is not limited thereto. For example, only the input unit or only the display unit may be used. Further, although the input unit of the operation unit 17 has been described as an example in which the power button 18 is configured, the input unit of the operation unit 17 may be configured by a device such as a touch panel. Further, as the display portion of the operation portion, for example, a device such as a liquid crystal display device may be used.

As shown in fig. 16, the operation portion 17 is surrounded by an operation projection 21 disposed around the operation portion 17 and projecting from the case surface of the grip portion 3. By disposing the operation projection 21, it is possible to prevent a user's erroneous operation such as erroneous pressing of the power button 18.

In the above, the configuration in which the operation protrusion 21 is formed around the operation portion 17 has been described as an example, but the present invention is not limited to this. For example, the operation protrusion 21 may be formed only around the power button 18. This can more reliably avoid the user from erroneously operating the power button 18.

The handle portion 3 includes groove portions 22 formed along the outer peripheries of both the left and right sides of the operation portion 17. As shown in fig. 16, the groove 22 is formed to extend in the vertical direction of the handle portion 3. Specifically, the groove 22 of the present embodiment is formed, for example, in a size of about 9mm in width, about 36mm in length, and about 2mm in depth. These numerical values are not limited to the above values, and may be other numerical values depending on the shape of the grip portion 3 and the like.

That is, when the groove 22 is not provided in the handle portion 3, the user may slide his or her finger on the handle portion 3 when the vacuum cleaner is moved in various directions such as front-back, left-right, and the like to perform cleaning. Therefore, there is a possibility that the user's force is not sufficiently transmitted to the electric vacuum cleaner.

In the present embodiment, the groove 22 is formed in the grip portion 3, and the user brings fingers (thumb, index finger, etc.) into contact with the groove 22 of the grip portion 3 as shown in fig. 17, for example. This enables the user's fingers to reliably grip the grip portion 3 without sliding on the surface of the grip portion 3. The above-described contact of the finger with the groove 22 also includes, for example, insertion or insertion of a part of the finger into the groove 22.

Here, in fig. 16 and 17, a surface of the handle portion 3 on which the operation portion 17 is disposed is referred to as an upper surface side, and a surface opposite to the upper surface side is referred to as a lower surface side (or a rear surface). As shown in the paper of fig. 16, the right side when the handle portion 3 is viewed from the extension pipe connecting portion 42 will be described as a right side surface and the left side as a left side surface. However, when the user holds the handle portion 3 during cleaning, the right side surface corresponds to the left side and the left side surface corresponds to the right side when the user views the handle portion 3.

Next, the internal structure of the handle portion 3 will be described in more detail with reference to fig. 18.

Fig. 18 is a cross-sectional view of the grip portion 3 cut in the front-rear direction.

As shown in fig. 18, the handle portion 3 is internally provided with a dust collecting portion 23, a suction motor 24 for generating suction air, a power supply portion 25 for mainly driving the suction motor 24, and the like from the front. The dust collecting unit 23 is formed of a dust bag made of cloth or paper, for example. The power supply unit 25 is constituted by a rechargeable secondary battery such as a lithium ion battery. The power supply unit 25 may be a primary battery that is not chargeable but replaceable, instead of a secondary battery.

A circuit board 45 including a control unit and the like is disposed below the operation unit 17. The circuit board 45 has a pattern for detecting a key depression formed on the upper surface side, and a power supply circuit for controlling the power supply unit 25 having a regulator, a diode, and the like, and the pattern thereof formed on the lower surface (back surface) side. The power supply unit 25, the circuit board 45, and the suction motor 24 are electrically connected by, for example, lead wires.

The grip portion 3 of the present embodiment is composed of 3 portions called a front portion 26, an intermediate portion 27, and a rear portion 28. The front portion 26 corresponds to a portion where the dust collecting portion 23 is disposed. The intermediate portion 27 corresponds to a portion where the suction motor 24 is disposed. The rear portion 28 corresponds to a portion where the power supply portion 25 is disposed.

Next, the external structure of the grip portion 3 will be described in further detail with reference to fig. 19 and 20.

Fig. 19 is a plan view of the grip portion 3 as viewed from above. Fig. 20 is a plan view of the grip portion 3 as viewed from below.

As shown in fig. 19, the operation portion 17 is disposed between 2 groove portions 22 formed along the outer periphery of the grip portion 3. The operation projection 21 is formed around the operation portion 17. The operation of the projection 21 prevents the user from erroneously pressing the power button 18 or the like when the user grips the groove 22.

As shown in fig. 17, when the user grips the 2 groove portions 22 with, for example, the index finger and the thumb, a space is formed between the index finger and the thumb. The operation unit 17 is located in the space. Therefore, the user is prevented from erroneously operating the power button 18.

As shown in fig. 20, the handle portion 3 includes a power supply groove portion 30 formed on the lower surface (bottom surface) side of the rear portion 28. The power supply groove 30 is formed between 2 grooves 22 formed on both left and right sides of the handle 3. The power supply groove 30 is formed with a width of 9mm, a length of 24mm, and a depth of 4mm, for example. The power supply groove portion 30 has a power supply hole 31 formed below a substantially central portion (including the central portion). The power supply hole 31 is inserted with a power supply plug 33 (see fig. 24) of a power supply adaptor, for example. The above numerical values are examples, and are not limited to these values, and other numerical values may be used.

The handle portion 3 has an extension pipe connecting portion 42 attached to the tip of the front portion 26. The handle portion 3 has a band attachment portion 32 formed at the rear end of the rear portion 28. A belt, a string, or the like is attached to the belt attaching portion 32. The handle portion 3 is provided with an exhaust port 29 formed in one side surface (left side surface in fig. 20) of the intermediate portion 27. The exhaust port 29 discharges the suction air generated by the suction motor 24 and passing through the dust collecting unit 23 from the suction tool 2 to the outside.

Next, the structure of the groove 22 of the grip portion 3 will be described in more detail with reference to fig. 21.

Fig. 21 is a perspective view of the handle portion 3. Fig. 21 is a diagram for explaining a positional relationship between the 2 grooves 22 and the power supply groove 30.

As shown in fig. 21, the virtual axis a is an axis corresponding to the direction in which the grip portion 3 extends (front-rear direction). The grooves 22 formed on both the left and right sides of the handle portion 3 are formed at symmetrical positions and in symmetrical shapes with respect to the virtual axis a.

The virtual circle C corresponds to a cross section obtained by cutting the groove portion 22 of the grip portion 3 with a plane formed in the vertical and horizontal directions. The 2 grooves 22 and the power supply groove 30 are formed along the virtual circle C on the outer periphery of the grip portion 3.

Next, the structure of the left and right side surfaces of the grip portion 3 will be described with reference to fig. 22 and 23.

Fig. 22 is a left side view of the grip portion 3 viewed from the left direction in fig. 19. Fig. 23 is a right side view of the handle portion 3 as viewed from the right direction in fig. 19.

As shown in fig. 22, the handle portion 3 includes an exhaust port 29 formed in a side surface (left side surface in fig. 19). The exhaust port 29 is disposed assuming that a right-handed user holds the grip portion 3 and cleans the same. This prevents air or the like discharged from the air outlet 29 from being discharged toward the user during cleaning. That is, when the user holds the handle portion 3 with his right hand to perform cleaning, the exhaust port 29 is oriented rightward as viewed from the user.

As shown in fig. 23, the handle portion 3 includes an operation portion 17 formed on the upper surface, a groove portion 22 formed on the side surface, and a power supply groove portion 30 formed on the lower surface (bottom surface). The handle portion 3 has an extension pipe connecting portion 42 attached to the tip (front) of the front portion 26.

Next, a state of the electric vacuum cleaner standing on a wall 43 or the like will be described with reference to fig. 24.

Fig. 24 is a side view showing a state where the electric vacuum cleaner is standing on a wall 43 or the like.

As shown in fig. 24, the electric vacuum cleaner is normally stored in a state of being inclined from the floor 44 toward the wall 43 by bringing the rear end of the handle portion 3 into contact with the wall 43 or the like. At this time, the power plug 33 connected to the power cord 34 is inserted into the power hole 31 of the power supply groove portion 30 (see fig. 20) formed in a concave shape from the front surface (lower surface) of the grip portion 3, and the power supply portion 25 is charged. The above-described housed state can prevent the back surface of the power plug 33 inserted into the power hole 31 of the power supply groove portion 30 from coming into contact with the wall 43 or the like.

Here, in the electric vacuum cleaner of the present embodiment, for example, the height of the power plug 33 is 15mm, the depth of the power supply groove portion 30 is 4mm, the length from the rear end of the handle portion 3 to the power supply groove portion 30 is 100mm, and the length from the tip portion (the suction tool 2 portion) of the extension pipe 1 to the rear end of the handle portion 3, that is, the length of the electric vacuum cleaner is 910 mm. With this dimensional configuration, the contact between the back surface of the power plug 33 and the wall 43 can be avoided. The above values are examples, and may be other values as long as the power plug 33 does not contact the wall 43.

Next, the structure of the front portion 26 of the grip portion 3 will be described with reference to fig. 25 and 26.

Fig. 25 and 26 are perspective views showing a state where the front portion 26 of the handle portion 3 is detached from the intermediate portion 27 of the handle portion 3.

As shown in fig. 25 and 26, the front portion 26 of the grip portion 3 includes an inner wall 35 and an outer wall 38 connected to the intermediate portion 27. The inner wall 35 has a plurality of (for example, 3) fitting projections 36 projecting inward. The fitting protrusion 36 is formed only on the inner wall 35.

The front portion 26 has at least 1 hole 37 formed to penetrate the inner wall 35 and the outer wall 38. The hole 37 is formed in a substantially rectangular shape (including a rectangular shape) that is long in the circumferential direction, for example. The front part 26 has the dust collecting part 23 disposed therein, and the extension pipe connecting part 42 is attached to the distal end side.

In the present embodiment, the configuration in which 3 fitting protrusions 36 are provided in the front portion 26 of the grip portion 3 has been described as an example, but the present invention is not limited thereto. For example, the number of the fitting projections 36 may be changed in consideration of mechanical strength at the time of fitting to the intermediate portion 27 of the grip portion 3, workability of detaching from the intermediate portion 27, and the like. Specifically, the number of the fitting projections 36 may be 2 or 4 or more.

In the present embodiment, the example in which hole 37 is formed in a substantially rectangular shape (including a rectangular shape) has been described, but the present invention is not limited thereto, and hole 37 may have another shape such as a circular shape or a square shape. This enables the fitting with the projections 41 having various shapes.

Next, the structures of the intermediate portion 27 and the rear portion 28 of the grip portion 3 will be described with reference to fig. 27 and 28.

Fig. 27 and 28 are perspective views showing the intermediate portion 27 and the rear portion 28 in a state where the front portion 26 is removed from the intermediate portion 27 of the handle portion 3.

As shown in fig. 27 and 28, the intermediate portion 27 of the handle portion 3 includes a side wall 39 formed at a connecting portion connected to the inner wall 35 of the front portion 26. The side wall 39 has a plurality of (e.g., 3) fitting grooves 40. The fitting groove 40 is formed in a recessed shape having a substantially L shape (including an L shape) with one end opened to the front end of the side wall 39.

The fitting projection 36 of the front portion 26 is inserted through the open fitting groove 40, and the intermediate portion 27 is turned in the right direction, for example. Thereby, the front portion 26 of the grip portion 3 is fitted to the intermediate portion 27.

The intermediate portion 27 has at least 1 protrusion 41 formed to protrude outward from the inside of the side wall 39. The projection 41 is biased outward from the inside of the side wall 39 by an elastic member (not shown) such as a spring. The projection 41 is fitted into the hole 37 formed in the front portion 26 when the front portion 26 is fitted into the intermediate portion 27.

The method of connecting the front portion 26 and the intermediate portion 27 of the handle portion 3 will be described in detail below.

First, the fitting projection 36 of the front portion 26 is inserted from the open end of the fitting groove 40 of the intermediate portion 27. At this time, the protrusion 41 of the intermediate portion 27 is pushed inward by the inner wall 35 of the front portion 26 as the front portion 26 is inserted, and moves inward of the side wall 39 against the elastic force of the elastic member.

Next, the fitting protrusion 36 is rotated along the fitting groove 40 extending in the circumferential direction of the side wall 39. That is, the user rotates the front portion 26 clockwise with the inner wall 35 of the front portion 26 covering the side wall 39 of the intermediate portion 27. At this time, the fitting projection 36 of the front portion 26 abuts on the tip end portion of the recess of the substantially L shape (including the L shape) in the circumferential direction of the fitting groove 40 of the intermediate portion 27. At the same time, the projection 41 of the intermediate portion 27 projects outward from the hole portion 37 of the front portion 26. Thereby, the fitting protrusion 36 is fitted into the fitting groove 40, and the protrusion 41 is fitted into the hole 37. As a result, the front portion 26 is connected to the intermediate portion 27.

On the other hand, when detaching the front portion 26 of the handle portion 3 from the intermediate portion 27, the user pushes the protrusion 41 of the intermediate portion 27 inward of the side wall 39 and rotates the front portion 26 counterclockwise. Then, the fitting projection 36 of the front portion 26 is pulled out from the open end of the fitting groove 40 of the intermediate portion 27. This enables the front portion 26 to be detached from the intermediate portion 27.

As shown in fig. 28 and 29, the rear portion 28 of the handle portion 3 has a belt attachment portion 32 formed near the rear end thereof, through which a rope, a belt, or the like passes.

(other embodiments that can be adopted in the present embodiment mode)

The above embodiment is the best mode that can be performed by those skilled in the art, but it is also conceivable to perform the embodiment as follows.

That is, in the present embodiment, the configuration in which the rotary body 5 of the suction tool 2 rotates in the rotary body arrangement space 10 is described as an example, but the present invention is not limited to this. For example, the rotary body 5 and the extension pipe connecting portion 6 may be integrally formed, and the rotary body 5 may rotate together with the extension pipe connecting portion 6. Alternatively, the following structure may be adopted: the rotary body 5 is not provided, and the extension pipe connection portion 6 is directly connected to the inhaler body 4, and the extension pipe connection portion 6 is rotated at least in the short side direction (left-right direction) of the inhaler body 4.

In the present embodiment, the structure in which the rotary body 5 of the inhaler 2 is connected to the inhaler body 4 so as to be rotatable about the longitudinal direction (front-rear direction) of the inhaler 2 has been described as an example, but the present invention is not limited thereto. For example, the following configuration may be adopted: a substantially spherical (including a spherical) protruding portion is provided on a side surface (a front side surface connected to the suction tool body 4) of the rotating body 5, and the protruding portion is loosely fitted to a portion of the suction port 9 of the suction tool body 4.

In the present embodiment, when the extension pipe connection portion 6 of the suction tool 2 is rotated in the direction of the arrow C shown in fig. 8, the extension pipe connection portion 6 is in a state of being at an angle of substantially 90 degrees (including 90 degrees) with respect to the suction tool main body 4 as shown in fig. 5. The description has been given taking as an example a configuration in which the side surface of the extension pipe connection portion 6 abuts on the end portion 8a of the rotating body opening portion 8 at this time, and the extension pipe connection portion 6 is restricted from further rotation in the direction of the arrow C in fig. 8 beyond an angle of substantially 90 degrees with respect to the inhaler body 4. For example, the angle may be limited to an angle other than 90 degrees. In this case, the angle can be adjusted arbitrarily by changing the position in the front-rear direction of the front end 8a of the rotating body opening 8, for example.

In the present embodiment, the configuration in which the extension pipe connecting portion 6 of the suction tool 2 is restricted from further rotating in the direction of the arrow D shown in fig. 8 beyond an angle of approximately 140 degrees with respect to the suction tool main body 4 is described as an example, but the angle is not limited thereto. For example, the extension pipe connecting portion 6 may be rotated to an angle of approximately 180 degrees with respect to the suction tool main body 4, or may be restricted at another angle. In this case, the angle can be adjusted arbitrarily by, for example, changing the vertical position of the rear end 8b of the rotating body opening 8.

As described above, the present embodiment is a suction tool including an extension pipe connection portion connectable to an extension pipe, and a suction tool main body. The suction tool has a rotor arrangement space formed at a position behind and above the upper surface of the suction tool main body, the tip of the extension pipe connecting portion is located in the rotor arrangement space, and a mound portion as a portion protruding upward from the upper surface of the suction tool main body below the rotor arrangement space is provided at a position in front of the rotor arrangement space in the suction tool main body. The tip of the extension pipe connecting portion is connected to the inhaler body so as to be rotatable with respect to the inhaler body in the rotor arrangement space.

In addition, the following structure is desired: the inhaler of the present embodiment includes a rotating body disposed in the rotating body disposition space, the rotating body is connected to the inhaler body so as to be rotatable in a short side direction (left-right direction) of the inhaler body, and a tip end of the extension pipe connecting portion is connected to the rotating body.

In addition, the following structure is desired: in the inhaler of the present embodiment, the extension pipe connecting portion is connected to the rotating body so as to be rotatable in the longitudinal direction (front-rear direction) of the inhaler body. Thereby, the extension pipe connecting part can rotate in the longitudinal direction of the suction piece main body. Therefore, the user can smoothly rotate or move the inhaler body.

In addition, the following structure is desired: the rotating body of the inhaler of the present embodiment has a portion whose surface is a curved surface, the inhaler body has a 1 st recess having a curved surface on an upper surface portion facing the rotating body arrangement space, and the rotating body rotates in the short side direction (left-right direction) of the inhaler body by rotating on the 1 st recess.

In addition, it is desirable that the rotating body of the inhaler of the present embodiment has a rotating body opening that is open so as to extend in the longitudinal direction (front-rear direction) of the inhaler body, and the extension pipe connecting portion is configured to be in clearance fit with the rotating body in the rotating body opening and to be rotatable in the longitudinal direction (front-rear direction) of the inhaler body along the rotating body opening.

According to the above-described structure of the suction tool, the suction tool main body can be smoothly rotated or moved with respect to the extension pipe connecting portion of the electric vacuum cleaner to which the extension pipe is connected.

In the rotor arrangement space located on the upper surface of the inhaler body and behind the inhaler body, the tip of the extension pipe connecting portion is connected to the inhaler body via the rotor, and the rotor is formed of a material having elasticity such as resin.

Therefore, the force applied to the rotating body is not only transmitted to the connecting portion between the inhaler body and the rotating body, but also dispersed to the rotating body and the inhaler body portion existing below the rotating body arrangement space, so that it is possible to prevent an excessive force from acting on the surface of one end of the inhaler body, and to avoid damage to the inhaler.

In addition, the following structure is desired: the electric vacuum cleaner of the present embodiment includes: a handle part having a dust collecting part, a suction motor and a power supply part; an extension tube; and the suction piece, wherein one end of the extension pipe is connected with the handle part, and the other end of the extension pipe is connected with the suction piece.

In addition, the following structure is desired: the handle portion of the electric vacuum cleaner of the present embodiment includes: an operation part which is arranged on the upper surface side of the handle part and is operated by a user; a power supply hole, which is arranged on the back side of the handle part and is used for inserting a power supply plug; and a power supply slot portion formed to include a power supply hole. Thus, when the rear end portion of the handle portion is brought into contact with a wall or the like and is placed against the wall for storage or charging, a problem caused by contact between the power plug and the wall or the like can be more reliably avoided.

In addition, the power supply groove portion of the electric vacuum cleaner of the present embodiment may be formed to extend in a direction (vertical direction or horizontal direction) perpendicular to a direction (front-rear direction) in which the handle portion extends.

In the electric vacuum cleaner of the present embodiment, the power supply groove portion may be formed on a phantom circle expressed on a cross section of the handle portion in a direction (vertical direction or horizontal direction) perpendicular to a direction (front-rear direction) in which the handle portion extends.

It is desirable that the handle portion of the electric vacuum cleaner of the present embodiment has a groove portion formed on the left and right side surfaces with respect to the direction in which the handle portion extends (front-rear direction) and into which at least 1 part of the user's finger can be inserted, and the groove portion and the power supply groove portion are formed on the same imaginary circle.

In addition, the groove portion of the electric vacuum cleaner of the present embodiment is preferably formed so as to extend in a direction (vertical direction or horizontal direction) perpendicular to a direction (front-rear direction) in which the handle portion extends. This makes it possible to more reliably prevent the user's hand from slipping on the grip portion when the user grips and operates the grip portion of the electric vacuum cleaner.

It is desirable that the groove portion of the electric vacuum cleaner of the present embodiment is formed at a symmetrical position on the outer periphery of the handle portion with respect to an axis extending in the direction in which the handle portion extends (front-rear direction). Thus, the user can reliably hold the grip portion from the left and right sides of the grip portion.

In addition, the following structure is desired: the handle portion of the electric vacuum cleaner of the present embodiment includes: a dust collecting part which is arranged from the front to the back of the handle part and is used for containing dust; a suction motor for generating suction air; and a power supply unit for driving the suction motor. This makes it possible to make the grip portion substantially rod-shaped (including rod-shaped), and to reduce the size of the grip portion.

In addition, it is desirable that the power supply groove portion of the electric vacuum cleaner of the present embodiment is formed on the rear surface (lower surface in the vertical direction) side of the portion of the handle portion where the power supply portion is disposed. Thus, when the electric vacuum cleaner is placed on a wall, the electric vacuum cleaner can be housed in a state in which the electric wire connected to the power supply unit is suspended downward from the electric vacuum cleaner main body, that is, in a state in which the electric wire does not interfere with the electric vacuum cleaner main body.

In addition, the handle portion of the electric vacuum cleaner of the present embodiment desirably includes an operation portion that receives an instruction operation from a user, and an operation protrusion portion that is formed so as to protrude from an outer surface of the handle portion is provided around the operation portion. This can more reliably avoid the user from erroneously operating the operation unit.

In addition, the following structure is desired: in the electric vacuum cleaner of the present embodiment, when the handle portion is rotated to the right, the suction tool is rotated to the right, and when the handle portion is rotated to the left, the suction tool is rotated to the left. Thus, the vacuum cleaner can be realized in which the suction tool can be freely rotated, and moved forward and backward in accordance with the operation of the handle portion of the user.

According to the structure of the electric dust collector, the suction piece main body of the suction piece can rotate and move smoothly relative to the extension pipe.

In the rotor arrangement space located on the upper surface of the inhaler body and behind the inhaler body, the tip of the extension pipe connecting portion is connected to the inhaler body via the rotor, and the rotor is formed of a material having elasticity such as resin.

Therefore, the force applied to the rotating body is not only transmitted to the connecting portion between the inhaler body and the rotating body, but also dispersed to the rotating body and the inhaler body portion existing below the rotating body arrangement space, and thus it is possible to prevent an excessive force from acting on the surface of one end of the inhaler body. Thus, the electric dust collector capable of avoiding damage of the suction piece can be provided.

Industrial applicability

The suction tool of the present invention and the vacuum cleaner having the suction tool can be widely used for a household vacuum cleaner requiring excellent cleaning performance and operability, a business vacuum cleaner used in offices, factories, and the like.

Description of the reference numerals

1. An extension tube; 2. an inhalation piece; 3. a handle portion; 4. an inhalation piece main body; 5. a rotating body; 6. 42, an extension pipe connecting part; 6a, a tip section; 7. a mound portion; 8. a rotating body opening; 8a, 8b, end; 9. a suction inlet; 10. a rotating body arrangement space; 11. 1 st recess; 12. a stand section; 13. a 2 nd recess; 14. a rotating body fitting portion; 15. an inhalation piece fitting section; 16. a flow path; 17. an operation section; 18. a power button; 19. a power supply lamp; 20. a trash disposal lamp; 21. an operating protrusion; 22. a groove part; 23. a dust collecting part; 24. a suction motor; 25. a power supply unit; 26. a front part; 27. an intermediate portion; 28. a rear portion; 29. an exhaust port; 30. a power supply slot part; 31. a power supply hole; 32. a belt mounting portion; 33. a power plug; 34. a power line; 35. an inner wall; 36. a fitting protrusion; 37. a hole portion; 38. an outer wall; 39. a side wall; 40. a fitting groove; 41. a protrusion; 43. a wall; 44. a ground surface; 45. a circuit board is provided.

Claims (14)

1. An inhalation piece having an extension tube connecting part connectable to an extension tube and an inhalation piece main body, wherein,

a rotary body arrangement space is formed behind the suction tool main body and above the upper surface of the suction tool main body, the tip of the extension pipe connecting portion is positioned in the rotary body arrangement space,

a mound portion as a portion protruding upward from an upper surface of the inhaler body below the rotating body arrangement space is provided in the inhaler body at a position located forward of the rotating body arrangement space,

the tip end of the extension pipe connecting portion is connected to the inhaler body so as to be rotatable with respect to the inhaler body in the rotor arrangement space.

2. The inhaler of claim 1,

the suction member has a rotating body disposed in the rotating body disposition space,

the rotating body is connected to the inhaler body so as to be rotatable in a short side direction of the inhaler body, and the tip end of the extension pipe connecting part is connected to the rotating body.

3. The intake of claim 2,

the extension pipe connecting portion is connected to the rotating body so as to be rotatable in a longitudinal direction of the suction tool main body.

4. An inhalation piece according to claim 2 or 3,

the rotating body has a portion whose surface is a curved surface,

the suction piece main body has a 1 st concave portion having a curved surface at the upper surface portion opposed to the rotating body disposition space,

the rotating body rotates in the short side direction of the suction piece main body by rotating on the 1 st recess.

5. An inhalation piece according to any one of claims 2 to 4, wherein,

the rotary body has a rotary body opening that is open so as to extend in the longitudinal direction of the suction tool main body,

the extension pipe connecting portion is in clearance fit with the rotating body in the rotating body opening portion and is rotatable in the longitudinal direction of the suction tool main body along the rotating body opening portion.

6. An electric vacuum cleaner, wherein,

the electric vacuum cleaner includes:

a handle part having a dust collecting part, a suction motor and a power supply part;

an extension tube; and

the inhalation piece according to claim 1,

the extension tube is connected to the handle portion at one end portion thereof, and the suction member is connected to the other end portion thereof.

7. The electric vacuum cleaner according to claim 6,

the handle portion has:

an operation portion arranged on the upper surface side of the handle portion and operated by a user;

a power supply hole, which is arranged on the back side of the handle part and is used for inserting a power supply plug; and

a power supply slot portion formed to include the power supply hole.

8. The electric vacuum cleaner according to claim 7,

the power supply groove portion is formed to extend in a direction perpendicular to a direction in which the handle portion extends.

9. The electric vacuum cleaner according to claim 7,

the power supply groove portion is formed on a phantom circle expressed on a cross section of the handle portion in a direction perpendicular to a direction in which the handle portion extends.

10. The electric vacuum cleaner according to claim 9,

the handle part has a groove part formed on the left and right side surfaces with respect to the direction in which the handle part extends, and formed so that at least 1 part of a user's finger can be inserted,

the groove portion and the power supply groove portion are formed on the same imaginary circle.

11. The electric vacuum cleaner according to claim 10,

the groove portion is formed so as to extend in a direction perpendicular to the direction in which the handle portion extends.

12. The electric vacuum cleaner according to claim 11,

the groove portions are formed at symmetrical positions on the outer periphery of the handle portion around an axis extending in the direction in which the handle portion extends.

13. The electric vacuum cleaner according to claim 7,

the power supply groove portion is formed on a back surface side of a portion of the handle portion where the power supply portion is disposed.

14. The electric vacuum cleaner according to claim 6,

the handle portion has an operation portion disposed on an upper surface and receiving an instruction operation from a user,

an operation protrusion formed to protrude from an outer surface of the handle portion is provided around the operation portion.

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