CN114947608A - Electric vacuum cleaner - Google Patents

Abstract

The electric vacuum cleaner comprises a main body part (2), wherein the main body part (2) is provided with an upper arm part (6), a lower arm part (7), an intermediate part (8) and a handle part (9), and the intermediate part (8) and the handle part (9) are arranged between the upper arm part (6) and the lower arm part (7) through a space part (21). The handle part (9) is arranged obliquely backward and downward from the upper arm part (6) toward the lower arm part (7), the main body part (2) has a forward inclined part (20) above the space part (21), and the forward inclined part (20) is connected with the handle part (9) and the upper arm part (6) and is arranged obliquely relative to the handle part (9) and the upper arm part (6).

Description

Electric vacuum cleaner

The application is a divisional application of an invention application with the application number 201980017101.0 and the invention name of 'electric vacuum cleaner', wherein the application number is 201980017101.0 and the invention name is that PCT application PCT/JP2019/008497 which is proposed by Suo-Pan intellectual Property management company on 3/5 in 2019 and 9 and is entered the national stage on 3/2020.

Technical Field

The present invention relates to an electric vacuum cleaner.

Background

In the past, there have been problems with electric vacuum cleaners, such as light weight and easy portability for users. Accordingly, various electric vacuum cleaners have been developed.

Further, in recent years, stick cleaners have been commercialized. Various techniques have also been disclosed for a stick type vacuum cleaner (see, for example, patent document 1).

Patent document 1 discloses a stick type dust collector in which an extension pipe is connected to a dust collection box, and the dust collection box is connected to a handle.

However, in the structure of the vacuum cleaner described in patent document 1, the space between the handle and the dust box is narrow. Therefore, in the case of a user with a large hand, it is difficult to hold the cleaner. In addition, the dust box is vertically connected with respect to the extension pipe. Therefore, the user cannot easily see the internal state of the dust box (for example, the state of the dust accumulated) during the cleaning process.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2011-189132

Disclosure of Invention

Problems to be solved by the invention

The electric vacuum cleaner of the present invention includes a main body portion having an upper arm portion, a lower arm portion, an intermediate portion, and a handle portion, the intermediate portion and the handle portion being interposed between the upper arm portion and the lower arm portion with a space therebetween. The handle portion is arranged obliquely from the upper arm portion toward the lower rear side, and the main body portion has a front inclined portion which is continuous with and arranged obliquely with respect to the handle portion and the upper arm portion above the space portion.

Thus, the electric vacuum cleaner which is easy to hold the handle part and has excellent operability of the electric vacuum cleaner main body can be provided.

Drawings

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

Fig. 2 is a view showing a schematic configuration of a partial cross section around a main body and a connecting pipe of the electric vacuum cleaner.

Fig. 3 is a partial side view of the periphery of the main body and the connecting pipe of the electric vacuum cleaner.

Fig. 4 is a partial side view of the periphery of the main body and the connecting pipe of the electric vacuum cleaner.

Fig. 5 is a partial side view showing a state where a user holds a grip portion of the electric vacuum cleaner with a hand.

Fig. 6 is a perspective view of a dust box of the electric vacuum cleaner according to embodiment 1.

Fig. 7 is a perspective view showing a state where the dust box is connected to the connecting tube portion.

Fig. 8 is a perspective view of the dust box in a state where it is detached from the connecting tube part.

Fig. 9 is a perspective view of the periphery of a battery housing of an electric vacuum cleaner according to embodiment 1.

Fig. 10 is a perspective view of the vicinity of the battery housing portion.

Fig. 11 is an exploded perspective view of the chassis and the periphery of the body of the electric vacuum cleaner according to embodiment 1.

Fig. 12 is a perspective view showing a state in which the electric vacuum cleaner according to embodiment 2 is hung on the holder.

Fig. 13 is a perspective view showing a state where the electric vacuum cleaner is detached from the holder.

Fig. 14 is a perspective view showing a state in which the hose of the electric vacuum cleaner according to embodiment 2 is detached from the holder.

Fig. 15 is a perspective view showing a state in which the hose is connected to the connecting tube portion.

Fig. 16 is a perspective view of a base part of an electric vacuum cleaner according to embodiment 2.

Fig. 17 is a cross-sectional view taken along line 17-17 of the base shown in fig. 16.

Fig. 18 is a partial perspective view of the periphery of a holding portion of an electric vacuum cleaner according to embodiment 2.

Fig. 19 is a sectional view taken along line 19-19 of the holding portion shown in fig. 18.

Fig. 20 is a partial side view of the periphery of the body portion and the connecting tube portion in embodiment 3.

Detailed Description

Embodiments of the present invention are described below with reference to the drawings. The present invention is not limited to the embodiment.

(embodiment mode 1)

An electric vacuum cleaner according to embodiment 1 of the present invention will be described below with reference to fig. 1.

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

As shown in fig. 1, the electric vacuum cleaner 1 includes a main body 2, a connecting pipe 3 connected to the main body 2, an extension pipe 4 connected to the connecting pipe 3, a suction nozzle 5 connected to the extension pipe 4, and the like.

The suction nozzle 5 is configured to be attachable to and detachable from the extension pipe 4. The extension pipe 4 is also configured to be attachable to and detachable from the connection pipe portion 3. The extension pipe 4 may have a telescopic structure.

Hereinafter, for example, in the electric vacuum cleaner 1 shown in fig. 1, the suction nozzle 5 side is set as the front, the main body 2 side is set as the rear, the upper arm 6 side is set as the upper side, and the lower arm 7 side is set as the lower side.

The main body 2 includes an upper arm portion 6, a lower arm portion 7, an intermediate portion 8, a grip portion 9, and the like.

The grip 9 is formed on the rear side of the body 2 and is disposed so as to connect the upper arm 6 and the lower arm 7. The grip portion 9 constitutes a portion to be gripped by a user when using the electric vacuum cleaner 1.

The intermediate portion 8 is disposed between the upper arm portion 6 and the lower arm portion 7 on the front side of the main body portion 2, and incorporates a motor fan 10 (see fig. 2) and the like described later.

The main body 2 is formed by combining the above-described upper arm portion 6, lower arm portion 7, intermediate portion 8, handle portion 9, and the like.

The body of the main body 2 is formed of, for example, a thermoplastic resin such as polypropylene (PP), or a material obtained by mixing fibers or the like into polypropylene, in consideration of strength and heat resistance. As the material of the body, polypropylene or the like is suitable, but other materials such as ABS resin may be used.

The body 2, the connecting tube 3, and the like of embodiment 1 are mainly formed using materials such as polypropylene. However, for example, another material such as ABS resin may be used for some parts or portions requiring strength.

A connection pipe portion 3 is disposed in front of the body portion 2. The connecting pipe portion 3 is detachably connected to a dust box 11 at the upper side. The extension pipe 4 is detachably connected to the front side of the connection pipe portion 3.

The extension pipe 4 is detachably connected to a suction nozzle 5 at the front side. The suction nozzle 5 is connected to be rotatable within a predetermined angular range in the direction of arrow B or the direction of arrow C with the fulcrum a of the suction nozzle 5 as an axial direction.

The main body 2 and the dust box 11 constitute an electric vacuum cleaner main body.

Further, the electric cleaner main body can be moved by the user operating the handle portion 9 while holding it.

The dust box 11 is attached to the upper side of the connecting pipe portion 3 of the main body 2 of the electric vacuum cleaner body shown in fig. 1. Thus, the user can easily check the state of the dust collecting case 11 such as the amount of dust in the dust collecting case even when holding the handle 9. In this case, it is particularly preferable that the container of the dust box 11 is made of a transparent material. This allows the user to easily check the amount of dust in the dust box 11. Examples of the transparent material include PMMA (polymethyl methacrylate resin) and PET (polyethylene terephthalate).

The schematic configuration of the electric vacuum cleaner 1 according to embodiment 1 is configured as described above.

Next, the structure of the electric cleaner main body of the electric cleaner 1 will be described with reference to fig. 2.

Fig. 2 is a view showing a schematic configuration of a partial cross section of the electric vacuum cleaner main body of the electric vacuum cleaner 1 shown in fig. 1. Specifically, fig. 2 is a schematic cross-sectional view of the periphery of the body 2 and the connecting tube 3 in the side view of fig. 1. In fig. 2, the structure not directly related to the present invention is not illustrated or described.

As shown in fig. 2, the electric fan 10 is incorporated in the intermediate portion 8 of the main body 2. A cylindrical dust box 11, for example, is attached to the front of the electric blower 10. At this time, the electric fan 10 and the dust box 11 are arranged such that the rotation axis of the electric fan 10 and the center axis of the dust box 11 are on the same axis D shown in fig. 2.

The space inside the connecting pipe portion 3 and the space inside the dust box 11 communicate with each other through the opening. That is, the opening is formed by the connection of the 1 st opening 12 formed in the connecting tube part 3 and the 2 nd opening 13 formed in the dust box 11.

Further, the space inside the dust box 11 and the space inside the electric fan 10 communicate with each other through the opening. That is, the opening is formed by the connection of the 3 rd opening 14 formed in the dust box 11 and the 4 th opening 15 formed in the main body part 2.

In the above-described connected state, when the electric blower 10 is driven, suction wind is generated. Dust, dirt, and the like (hereinafter simply referred to as "dust") sucked from the suction nozzle 5 is sucked into the dust box 11 through the extension pipe 4, the inside of the connecting pipe portion 3, the 1 st opening 12, and the 2 nd opening 13 by the suction wind. Then, in the dust box 11, the dust is centrifugally separated from the suction air containing the sucked dust. Then, the suction wind from which the dust is separated is sucked to the electric fan 10 via the 3 rd opening 14 and the 4 th opening 15. The sucked air is discharged to the outside from the air outlet 16 (see fig. 9 and 10) of the main body 2.

The exhaust port 16 is formed in a surface of a portion of the main body 2 surrounding the electric blower 10 in fig. 2, and is not shown in fig. 2.

In this case, in the electric vacuum cleaner 1 according to embodiment 1, for example, the height dimension E of the upper arm 6 is formed to be about 30mm, and the height dimension F of the lower arm 7 is formed to be about 70 mm. The lower arm portion 7 incorporates a secondary battery 17 such as a lithium ion battery. Therefore, the thickness (height in the vertical direction) of the lower arm portion 7 is formed to a thickness necessary for incorporating the secondary battery 17. That is, the lower arm portion 7 is formed with a larger height dimension (thickness) than the upper arm portion 6. Thus, the secondary battery 17 such as the lithium ion battery is disposed below the heavy electric fan 10. As a result, the electric blower 10 and the secondary battery 17 can be balanced, and therefore, the user can stably hold the grip portion 9.

The secondary battery 17 is disposed in a region in the lower arm portion 7 from a position substantially at the center (including the center) of the electric blower 10 to the rear end of the grip portion 9 in the front-rear direction of the electric vacuum cleaner 1.

The secondary battery 17 is disposed to extend rearward and downward so as to be inclined with respect to the connecting tube portion 3. Specifically, axis G of secondary battery 17 is inclined at an angle I (e.g., about 10 degrees) with respect to axis H corresponding to the pipe axial direction of connecting pipe portion 3. The angle I does not necessarily have to be 10 degrees, and may be other angles. However, the angle I is preferably an angle in the range of about 7 to 13 degrees.

The grip portion 9 is formed at a rear side of the body portion 2 so as to be inclined rearward and downward from the upper arm portion 6 toward the lower arm portion 7. Thus, even in the structure in which the electric fan 10 is disposed above the axis H as the pipe axis of the connecting pipe portion 3 as described above, the user can stably perform cleaning by holding the handle portion 9.

As shown in fig. 2, the grip portion 9 is configured such that the center of gravity GG is located between an axis D corresponding to the rotation axis of the electric fan 10 and an axis H corresponding to the pipe axis of the connecting pipe portion 3 in the vertical direction of the electric fan 10. In this case, the center of gravity GG of the handle portion 9 is more preferably located closer to the axis D of the electric fan 10 than the axis H of the connecting pipe portion 3. Thus, even in a structure in which the electric blower 10 is disposed above the axis H of the connecting pipe portion 3, the user can stably clean the pipe portion by holding the handle portion 9.

That is, in the case where the shape of the grip portion 9 is different from that of embodiment 1, for example, in the case where the center of gravity GG of the grip portion 9 is located on the upper side of the axis line D of the electric blower 10, the user is difficult to freely operate the electric cleaner main body due to the weight of the electric blower 10 and the secondary battery 17. On the other hand, when the center of gravity GG of the handle portion 9 is located on the lower side of the axis D of the electric blower 10 and on the side closer to the axis H of the connecting pipe portion 3, the electric cleaner body is likely to swing about the axis H when the user grips the electric cleaner body by the weight of the electric blower 10. Therefore, the electric cleaner main body may shake.

Therefore, in the electric vacuum cleaner 1 according to embodiment 1, the positional relationship among the gravity center GG of the handle portion 9, the secondary battery 17, the connecting pipe portion 3, and the electric blower 10, and the shape of the handle portion 9 are optimized as described above. With this arrangement, the user can easily operate the electric vacuum cleaner main body with high operability.

Next, the structure around the main body 2 and the connecting pipe 3 of the electric vacuum cleaner 1 will be described with reference to fig. 3.

Fig. 3 is a side view of the periphery of the main body 2 and the connecting pipe 3 of the electric vacuum cleaner 1 shown in fig. 1.

As shown in fig. 3, a power supply terminal 19 is provided near a connection portion with the connection tube portion 3 in front of the lower arm portion 7 of the main body portion 2. Specifically, the power supply terminal 19 is disposed on a surface (power supply terminal connection surface 18) of a portion of the lower arm portion 7 located below a connection portion of the lower arm portion 7 and the connecting tube portion 3. By providing the power supply terminal connection surface 18, the power supply terminal 19 can be reliably fixed to the charging terminal of the charger (refer to fig. 13).

The power supply terminal 19 is configured to be connectable to a power supply terminal 55 of a holder 50 (see fig. 13) described later. Thus, the electric power supplied from the external power supply can be supplied from the power supply terminal 55 of the holder 50 to the electric vacuum cleaner main body via the power supply terminal 19. Further, the secondary battery 17 built in the lower arm portion 7 is charged with the supplied electric power. As a result, compared to a vacuum cleaner connected to an external power source via a cord reel or the like, for example, a wide cleaning area can be freely cleaned without being limited by the length of the cord reel or the like.

The power supply terminal 19 is disposed to protrude forward from the power supply terminal connection surface 18 so as to be substantially parallel (including parallel) to an axis H corresponding to a pipe axis of the connection pipe portion 3.

Here, an extended line J shown in fig. 3 indicates a line extending along the bottom surface 7a of the lower arm portion 7.

That is, the tip of the power terminal 19 is arranged above the extension line J without intersecting the extension line J. This prevents the power supply terminal 19 from coming into contact with the floor surface when the electric vacuum cleaner main body is placed on the floor surface, i.e., when the bottom surface 7a of the lower arm portion 7 comes into contact with the floor surface.

Specifically, the power supply terminal 19 is disposed such that the height of the tip of the power supply terminal 19 from the point K shown in fig. 3 of the front portion 7c of the bottom surface 7a of the lower arm portion 7 is, for example, approximately 18mm above the cleaner body in the vertical direction. Thus, the power supply terminal 19 is present at an upper position not intersecting the extension line J of the bottom surface 7a of the lower arm 7. Therefore, the power supply terminal 19 does not contact the ground. Further, the length L of the power terminal 19 in the protruding direction from the power terminal connection surface 18 is, for example, about 46 mm.

According to the above configuration, in the electric vacuum cleaner 1 according to embodiment 1, the power supply terminal 19 does not contact the floor surface when the electric vacuum cleaner main body is placed on the floor surface. Therefore, the possibility of damage to the power supply terminal 19 due to contact with the ground can be reduced.

In embodiment 1, the description has been given taking as an example a configuration in which the height from the point K on the front side of the bottom surface 7a of the lower arm 7 to the power supply terminal 19 is about 18mm, but the present invention is not limited to this. The height is not particularly limited to 18mm as long as the power supply terminal 19 can be reduced in possibility of breakage. In embodiment 1, the configuration in which the length L of the power supply terminal 19 is set to about 46mm has been described as an example, but the present invention is not limited thereto. The length of the power supply terminal 19 is not particularly limited to 46mm as long as it can reduce the possibility of breakage. In embodiment 1, the length L of the power supply terminal 19 is set to the length of the portion protruding forward from the power supply terminal connection surface 18. For example, the power supply terminal 19 may protrude forward from a point M shown in fig. 3 substantially directly below (including directly below) the connection portion between the connection tube 3 and the body 2. This can further reduce the possibility of the power supply terminal 19 coming into contact with the ground.

As shown in fig. 3, the upper arm portion 6 of the body portion 2 according to embodiment 1 is formed to be inclined toward the rear upper side with respect to the intermediate portion 8. On the other hand, the lower arm portion 7 of the body 2 is formed obliquely rearward and downward with respect to the intermediate portion 8. With this configuration, the length of the handle portion 9 connecting the upper arm portion 6 and the lower arm portion 7 can be increased. Therefore, even a user with a large hand can easily operate the electric vacuum cleaner 1 by holding the grip portion 9. That is, for example, when the upper arm portion 6 and the lower arm portion 7 are configured to extend rearward substantially in parallel (including parallel) with the intermediate portion 8, the length of the handle portion cannot be sufficiently secured. If the grip portion is secured to a sufficient length, the main body portion becomes large. However, by configuring the grip portion 9 as described above, the length of the grip portion 9 can be sufficiently ensured.

As shown in fig. 3, a space portion 21 is formed in a portion of the main body 2 surrounded by the upper arm portion 6, the lower arm portion 7, the intermediate portion 8, and the grip portion 9. Further, a front inclined portion 20 is formed above the space portion 21 and at a connecting portion between the upper arm portion 6 and the grip portion 9.

The front inclined portion 20 is formed in a shape inclined downward from a point N at the front end of the front inclined portion 20 contacting the space portion 21 to a point O at the rear end of the front inclined portion 20 contacting the space portion 21.

The central portion 9a of the portion of the handle portion 9 facing the space portion 21 is formed in an arc-shaped curved shape, for example, so as to protrude forward. This allows the user to grip the arcuate handle portions 9 with equal force with four fingers other than the thumb, which are substantially arcuate (including arcuate) when bent.

The connecting portion 7b, which connects the lower arm portion 7 to a portion of the intermediate portion 8 on the side facing the space portion 21, is formed in a shape recessed in an arc shape, for example, on the front side. This can reduce the weight of the main body 2. In addition, an external design that allows the user to easily recognize the presence of the electric blower 10 in the main body portion 2 from the shape of the recess can be realized.

As a specific dimensional relationship, the height of the vacuum cleaner 1 in the vertical direction from the point P at the rear end of the bottom surface 6a side of the upper arm portion 6 to the point O at the front end of the front inclined portion 20 is, for example, about 20 mm. The height of the vacuum cleaner 1 in the vertical direction from the point N at the front end of the front inclined portion 20 to the point O at the rear end of the front inclined portion 20 is, for example, about 5 mm.

That is, in the case of the configuration without the front inclined portion 20, when the grip portion 9 is held, the index finger of the user enters the narrow space above the space portion 21. Therefore, the user has a feeling of being very difficult to hold. However, by forming the front inclined portion 20 as in embodiment 1, the width above the space portion 21 (the width in the front-rear direction of the electric vacuum cleaner 1) can be ensured. As a result, the user can insert the index finger into the space 21 with a margin.

Further, the arrangement of the front inclined portion 20 can disperse the portion of the electric vacuum cleaner 1 where the weight of the user acts on the hand. Specifically, the weight of the electric vacuum cleaner 1 is dispersed to the rear portions of the front inclined portion 20 and the upper arm portion 6. Therefore, the weight of the electric vacuum cleaner 1 can be applied to the index finger side and the base side of the thumb of the user while being dispersed with the grip portion 9 therebetween.

Next, the relationship between the respective axes H, G, and Q around the main body 2 and the connecting pipe 3 of the electric vacuum cleaner 1 will be described with reference to fig. 4.

Fig. 4 is a side view of the periphery of the body 2 and the connecting tube 3 shown in fig. 1. Specifically, fig. 4 shows the relationship among three axes, i.e., the axis H in the tube axis direction of the connecting tube portion 3, the axis G of the lower arm portion 7, and the axis Q of the handle portion 9.

Here, the angle I shown in fig. 4 is an angle formed by the axis H of the connecting tube portion 3 and the axis G of the lower arm portion 7. The angle R is an angle formed by the axis H of the connecting tube portion 3 and the axis Q of the grip portion 9. The angle S is an angle formed by the axis Q of the grip portion 9 and the axis G of the lower arm portion 7.

The magnitude of the angle is in the order of the angle from the large angle to the small angle, and is the relationship of the angle R, the angle S, and the angle I. In this case, among the three angles, the angle I is the smallest acute angle, and the angle R is the largest obtuse angle.

That is, the minimum acute angle I means an angle at which the lower arm 7 on which the secondary battery 17 is mounted opens to the axis H corresponding to the pipe axis direction of the connecting pipe portion 3. With this configuration, the weight of the secondary battery 17 can be prevented from concentrating on a part of the user's hand in the front-rear direction of the electric vacuum cleaner 1 when the handle portion 9 is gripped.

On the other hand, the maximum obtuse angle R means that the angle at which the handle portion 9 opens with respect to the connecting tube portion 3 is large. With this configuration, the area of the space 21 between the intermediate portion 8 and the grip portion 9 can be enlarged when the user grips the grip portion 9. Therefore, the user can easily grip the grip portion 9.

That is, by setting the three angles in the above-described relationship as in the electric vacuum cleaner 1 of embodiment 1, it is easy for the user to hold the grip portion 9. Further, the weight of the electric vacuum cleaner 1 can be prevented from being concentrated on a specific portion of the user's hand. Therefore, the user can easily perform cleaning for a long time.

Next, the relationship between the hand of the user and the grip portion 9 in a state where the grip portion 9 of the electric vacuum cleaner 1 is gripped will be described with reference to fig. 5.

Fig. 5 is a partial side view showing a state where the user holds the grip portion 9 with a hand.

As shown in fig. 5, when the user holds the grip portion 9 with the hand, the front inclined portion 20 touches the index finger due to the self-weight of the electric vacuum cleaner 1. Meanwhile, the rear portion of the upper arm portion 6 touches the vicinity of the base of the thumb. Therefore, the weight of the electric vacuum cleaner 1 is dispersed to the rear of the front inclined portion 20 and the upper arm portion 6 and is applied to the hand. This can prevent the weight of the electric vacuum cleaner 1 from concentrating on a specific part of the hand of the user. As a result, the user can easily operate the electric vacuum cleaner 1.

When the user pushes the electric vacuum cleaner 1 forward, the user holds the handle portion 9 and brings the index finger into contact with the front inclined portion 20. This enables the electric vacuum cleaner 1 to be stably held and the electric vacuum cleaner 1 to be easily pushed forward.

On the other hand, when the user pulls the vacuum cleaner 1 rearward, the user holds the grip portion 9 and touches the rear portion of the upper arm portion 6 with the vicinity of the base of the thumb. Therefore, the user can stably hold the electric vacuum cleaner 1. Further, the weight of the electric vacuum cleaner 1 is distributed to the rear portions of the front inclined portion 20 and the upper arm portion 6 and applied to the hand. In this case, the rear portion of the upper arm portion 6 can be supported particularly near the base portion of the thumb of the user. This allows the user to easily pull the electric vacuum cleaner 1 rearward.

Next, the structure of the dust box 11 of the electric vacuum cleaner 1 according to embodiment 1 will be described with reference to fig. 6.

Fig. 6 is a perspective view of the dust box 11. In fig. 6, the directions shown in fig. 6 are referred to as upper, lower, front, rear, left, and right.

As shown in fig. 6, the dust box 11 includes a lid 22 that can be opened and closed at the bottom. The lid 22 is opened and closed by a user operating the opening/closing lever 23. Specifically, the user lowers the opening/closing lever 23 downward, and the opening/closing lever 23 presses the lid 22 downward. This opens the lid 22.

The dust box 11 has a 2 nd opening 13 on the front side. When the dust box 11 is mounted on the connecting pipe 3, the 2 nd opening 13 is aligned with the 1 st opening 12 of the connecting pipe 3 (see fig. 2). Thus, when the electric fan 10 is driven, air flows from the inside of the connecting pipe portion 3 to the inside of the dust box 11.

The dust box 11 also has a 3 rd opening 14 on the upper surface. When the dust box 11 is mounted on the connecting tube 3, the 3 rd opening 14 is aligned with the 4 th opening 15 of the main body 2 (see fig. 2). Thus, when the electric fan 10 is driven, air flows from the inside of the dust box 11 to the inside of the electric fan 10.

In addition, when the 2 nd opening 13 is viewed from the front, the dust box 11 is provided with a 1 st holding part 25 for holding the brush 24 on the outer periphery of the right side of the opening/closing lever 23, for example. The 1 st holding portion 25 has a 2 nd holding portion 26 for holding the fur brush 24 therebelow.

The 2 nd holding portion 26 is formed in a substantially U-shape (including a U-shape) in cross section, and the 2 nd holding portion 26 holds the rear end (corresponding to the shank portion) of the inserted brush 24. On the other hand, the 1 st holding portion 25 is formed in a substantially L-shape (including an L-shape) in cross section, and the 1 st holding portion 25 holds the vicinity of the center portion of the inserted fur brush 24. That is, the user inserts the brush 24 toward the 2 nd holding part 26 from above, thereby mounting and accommodating the brush 24 in the dust box 11.

The dust box 11 has a slide portion 27 on the upper portion thereof, which is slidable in the vertical direction by a spring or the like. The lid 22 includes a protrusion 28 protruding upward on the front side. Thereby, the dust box 11 is connected to the connecting pipe portion 3 and the body portion 2 via the sliding portion 27 and the projection 28 of the lid portion 22.

Next, a state in which the dust box 11 is connected to the connecting tube portion 3 and the main body portion 2 will be described in detail with reference to fig. 7 and 8.

Fig. 7 is a perspective view showing a state where the dust box 11 is attached to the connecting tube portion 3. Fig. 8 is a perspective view showing a state where the dust box 11 is detached from the connecting tube part 3.

As shown in fig. 8, the main body 2 has a 4 th opening 15 through which the suction wind from the electric blower 10 is generated and a 1 st connecting recess 29 to which the dust box 11 is attached. On the other hand, the connecting tube part 3 has a 2 nd connecting recess 30 to which the dust box 11 is attached.

The connecting pipe portion 3 has a 1 st opening 12 on one side surface side, and the 1 st opening 12 is opened upward and is connected to a 2 nd opening 13 of the dust box 11. The connecting pipe portion 3 is provided with a brush housing portion 31 on the other side surface side, and the brush housing portion 31 houses the brush 24 when the dust box 11 is attached to the connecting pipe portion 3.

The brush housing portion 31 includes a brush housing side wall 32 extending in the longitudinal direction (tube axis direction) of the connecting tube portion 3, and a brush housing rear wall 33 extending from the rear end of the brush housing side wall 32 in the direction orthogonal to the longitudinal direction of the connecting tube portion 3. That is, the brush housing portion 31 is formed in a substantially L shape (including an L shape) by the brush housing side wall 32 and the brush housing rear wall 33 when viewed from above.

As shown in fig. 8, the connecting tube 3 has a housing recess 34 as a recessed portion. The storage recess 34 stores the opening/closing lever 23 of the dust box 11 and the like when the dust box 11 is mounted on the connecting tube portion 3.

The bottom surface 31a of the brush housing portion 31 surrounded by the brush housing side walls 32 and the brush housing rear wall 33 is formed to be substantially flush (including flush) with the housing recess 34. The brush housing portion 31 may have a stepped portion formed between a bottom surface 31a portion surrounded by the brush housing side wall 32 and the brush housing rear wall 33 and the housing recess 34.

As shown in fig. 8, a check valve 35 made of, for example, rubber is disposed in the 1 st opening 12. The check valve 35 is opened to the upper side by suction air generated by driving of the electric blower 10. Thereby, the dust sucked from the suction nozzle 5 enters the inside of the dust box 11 through the 1 st opening 12 of the connecting tube part 3. On the other hand, when the driving of the electric blower 10 is stopped, the check valve 35 is closed. This prevents the dust in the dust box 11 from flowing backward to the connecting pipe 3.

The method of connecting the connecting tube 3 to the dust box 11 will be described.

First, the lid 22 side of the dust box 11 is inclined obliquely downward with respect to the connecting tube 3. In the inclined state, the projection 28 of the dust box 11 is inserted into the 2 nd connecting recess 30 of the connecting tube part 3.

Then, the 3 rd opening 14 side of the dust box 11 is tilted downward.

Then, the sliding portion 27 of the dust box 11 is inserted into the 1 st coupling recess 29 of the main body 2.

The dust box 11 is connected to the connecting pipe portion 3 through the above steps.

At this time, in a state where the dust box 11 is connected to the connecting pipe portion 3, as shown in fig. 7, the brush 24 is hidden by the brush housing side wall 32 and the brush housing rear wall 33, and the brush 24 is housed in a position where it is not easily seen from the outside. Therefore, the aesthetic appearance of the electric vacuum cleaner 1 is improved.

That is, the brush 24 is mainly used when cleaning the inside of the dust box 11. Therefore, the brush 24 is disposed at a position where the user can easily attach and detach the dust box 11 from the connecting pipe portion 3. On the other hand, in a state where the dust box 11 is attached to the connecting pipe portion 3, the user is less likely to use the brush 24. Therefore, the brush 24 is stored in the brush storage portion 31 so as to be invisible from the outside and not to be attached and detached.

Further, when the electric vacuum cleaner 1 is used, the brush storage side wall 32 and the brush storage rear wall 33 constituting the brush storage portion 31 can prevent the (brush side) of the brush 24 from touching the clothes of the user. Further, the brush housing portion 31 can prevent dust attached to the tip end of the brush 24 from scattering.

In addition, when the electric vacuum cleaner 1 is used, the brush 24 can be prevented from falling off the dust box 11 by the brush housing part 31.

The dust box 11 is connected to the connecting tube 3 and the main body 2 as described above.

Next, the internal structure of the lower arm portion 7 of the main body portion 2 will be described with reference to fig. 9 and 10.

Fig. 9 and 10 are perspective views of the body 2 and the connecting tube 3 shown in fig. 7, as viewed obliquely from below. Specifically, fig. 9 is a perspective view showing a state in which the secondary battery 17 is housed. Fig. 10 is a perspective view showing a state in which the secondary battery 17 is removed. Fig. 9 and 10 illustrate the battery cover 37 in a state of being detached from the battery housing 36.

As shown in fig. 9, a battery housing 36 is formed inside the lower arm portion 7, and the secondary battery 17 is housed in the battery housing 36. The battery housing 36 is attached with a battery cover 37 by screws or the like (not shown). With this configuration, the secondary battery 17 cannot be removed from the battery housing 36 unless the user intentionally removes a screw or the like.

As shown in fig. 10, the battery housing 36 includes a housing recess 38 that houses the secondary battery 17. The storage recess 38 includes a battery storage wall 39 formed at the front and having a substantially japanese コ -shaped cross section (including japanese コ -shaped cross section), and a rear wall 40 formed at the rear. The battery housing portion 36 further includes a plurality of ribs 41 formed on the inner side surface of the lower arm portion 7.

The battery housing wall 39 includes a front wall 42 existing on the front side of the main body 2, two side walls 43 extending rearward from both the left and right sides of the front wall 42, and the like. The battery receiving wall 39 also includes a top wall 44 formed above the front wall 42 and the side walls 43.

The battery housing wall 39 is preferably made of a flame retardant material. Therefore, in embodiment 1, the battery housing wall 39 is formed of a material made of, for example, flame-retardant polypropylene.

The battery housing 36 is configured as described above.

That is, the secondary battery 17 is housed in the battery housing portion 36 in a state sandwiched between the rear-side end portions of the two side walls 43 and the rear wall 40 shown in fig. 9. At this time, the secondary battery 17 is connected to a cable 45 that supplies electric power to the secondary battery 17, and is housed in the battery housing portion 36. Specifically, the cable 45 and the secondary battery 17 are electrically connected by inserting a connector (not shown) of the cable 45 and a connector (not shown) of the secondary battery 17. Then, in the connected state, the cable 45 is bent along the front wall 42 at the top portion 46, and the secondary battery 17 is housed in the battery housing portion 36. This also accommodates the cable 45 in the battery accommodation portion 36 together with the secondary battery 17. That is, the cable 45 is disposed along the front wall 42. At this time, the cable 45 is bent at the top 46 of the front wall 42 closest to the battery cover 37.

In embodiment 1, in a state where the battery cover 37 is attached to the battery housing portion 36, the space (gap) between the battery cover 37 and the top portion 46 is set to be substantially the same as (including the same as) the diameter of the cable 45 or to be larger than the diameter of the cable 45 by a width of about 1mm to several mm.

That is, when the space between the battery cover 37 and the top portion 46 and the diameter of the cable 45 are substantially the same, the cable 45 is housed in contact with the top portion 46. Therefore, the up-and-down movement of the cable 45 is restricted by the battery cover 37.

On the other hand, when the space between the battery cover 37 and the top 46 is formed to have a width of about 1mm to several mm larger than the diameter of the cable 45, the cable 45 is housed in a state slightly separated from the top 46 of the front wall 42. Therefore, the up-and-down movement of the cable 45 is restricted by the battery cover 37.

A cable 45 and a connector (not shown) are housed in a space surrounded by the front wall 42 and the side wall 43. At this time, the secondary battery 17 is restricted from moving in the front-rear direction by the abutment of the secondary battery 17 with the rear wall 40 and the rear end 43a of the side wall 43. Thereby avoiding contact of the secondary battery 17 with the cable 45 or contact of the secondary battery 17 with the connector.

The power supply terminal 19 is connected to a circuit board (not shown) disposed inside the lower arm portion 7 on the back side of the top wall 44 shown in fig. 9 through a lead wire (not shown) or directly connected to the circuit board (not shown). The circuit board is connected to the secondary battery 17 via a cable 45.

At this time, the cable 45 connected to the secondary battery 17 shown in fig. 9 needs to have a certain length. That is, if the cable 45 is short, it may become difficult to connect the connector of the cable 45 and the connector of the secondary battery 17 at the time of assembly. On the other hand, if the cable 45 is too long, the cable 45 may be broken when stored.

Therefore, in the electric vacuum cleaner 1 according to embodiment 1, the length of the cable 45 is set to, for example, about 50 mm. This allows the connector of the cable 45 and the connector of the secondary battery 17 to be easily connected at the time of assembly. In addition, in a state where the secondary battery 17 is housed in the battery housing portion 36, the occurrence of bending of the cable 45 can be avoided. As a result, the disconnection of the cable 45 can be prevented in advance, and the reliability can be improved.

The interior of the lower arm portion 7 of the main body portion 2 is configured as described above so that the secondary battery 17 is housed in a stable state.

Next, the body 48 and the chassis 47 constituting the main body of the electric vacuum cleaner will be described with reference to fig. 11.

Fig. 11 is an exploded perspective view of a base plate 47 of the electric vacuum cleaner main body and a body 48 connected to the base plate 47.

As shown in fig. 11, the bottom plate 47 is formed of a so-called honeycomb structure having a plurality of regular hexagonal holes 49. The honeycomb structure can reduce the weight of the electric vacuum cleaner main body and maintain the mechanical strength of the electric vacuum cleaner main body.

The chassis 47 and the body 48 are formed of, for example, a thermoplastic resin such as polypropylene (PP), or a material obtained by mixing fibers or the like into polypropylene, in consideration of strength and heat resistance. That is, polypropylene or the like is generally suitable for the chassis 47 and the body 48. However, for example, if further mechanical strength is desired, other materials such as ABS resin may be used to form the chassis 47 and the body 48 as necessary.

In embodiment 1, the description has been given by taking as an example a configuration in which the chassis 47 and the body 48 are made of the same material, but the chassis 47 and the body 48 may be made of different materials.

In embodiment 1, the description has been given of an example in which the hole 49 of the chassis 47 is formed in a regular hexagon, but the invention is not limited thereto. For example, the hole may be formed in another polygonal shape such as a triangle or a quadrangle, and the hole 49 of the chassis 47 may be a circle. However, considering the strength, weight reduction, and the like of the chassis 47, a regular hexagon is most preferable as the shape of the hole 49.

In this case, in order to prevent dust, water droplets, and the like from entering the main body 2 from the outside, it is preferable that no hole be formed in the body 48 except for the exhaust port 16.

As described above, the chassis 47 has a honeycomb structure, and the body 48 has a structure in which no hole is provided in a portion other than the exhaust port 16. This can reduce the weight of the electric vacuum cleaner 1 and maintain the strength of the electric vacuum cleaner main body. Further, the honeycomb structure of the chassis 47 is not visible from the outside by the body 48 covering the chassis 47. This improves the aesthetic appearance of the electric vacuum cleaner main body.

(embodiment mode 2)

An electric vacuum cleaner 1 according to embodiment 2 of the present invention will be described below with reference to fig. 12 to 19.

In embodiment 2, a description will be given mainly of a mode of holding a holder of the electric vacuum cleaner 1 according to embodiment 1.

Fig. 12 is a perspective view showing a state in which the electric vacuum cleaner 1 is vertically hung on the holder 50. Fig. 13 is a perspective view showing a state where the electric vacuum cleaner 1 is detached from the holder 50. Fig. 14 is a perspective view showing a state where the hose 57 is detached from the holder 50. Fig. 15 is a perspective view showing a state in which the hose 57 is connected to the connecting pipe portion 3 of the electric vacuum cleaner main body. Fig. 16 is a perspective view of a base 51 portion of the electric vacuum cleaner 1. Fig. 17 is a sectional view taken along line 17-17 of the base 51 shown in fig. 16. Fig. 18 is a perspective view of a holding portion 53 in a state where the electric vacuum cleaner 1 is vertically hung on the holding base 50. Fig. 19 is a sectional view of the holding portion 53 shown in fig. 18 taken along line 19-19. In fig. 12 to 14 and 16 to 19, the arrangement of the holders 50 will be described with respect to the directions shown in the drawings, i.e., upward, downward, forward, rearward, leftward and rightward. On the other hand, the arrangement of the electric vacuum cleaner 1 will be described in the same manner as in fig. 1.

First, as shown in fig. 12, the holder 50 includes a base 51, a pillar portion 52, a holding portion 53, and the like, which are disposed below. The pillar portion 52 extends upward from the base 51. The holding portion 53 is connected to an upper portion of the pillar portion 52.

As shown in fig. 13, the holding portion 53 includes a housing recess 54 for holding the connecting pipe portion 3 of the electric vacuum cleaner 1. The holding portion 53 further includes a storage protrusion 56 protruding forward below the storage recess 54. The housing projection 56 holds the electric vacuum cleaner 1 on the holder 50 by sandwiching the front portion 3a of the connecting pipe portion 3.

The holder 50 is configured as described above.

The electric vacuum cleaner 1 can be hung on the holder 50 by the method described below.

Specifically, first, the front portion 3a side of the connecting pipe portion 3 of the electric vacuum cleaner 1 is fitted into the receiving projection 56 of the holding portion 53 of the holder 50 from above. Thereby, the front portion 3a of the connecting tube 3 is sandwiched by the receiving projection 56. At the same time, the portion of the connecting tube 3 projecting to the left and right is in contact with the upper portion of the receiving projection 56. The electric cleaner body of the electric cleaner 1 is thereby attached to the holder 50. The upper surface 53a of the holding portion 53 is configured to abut against the front portion 7c of the lower arm portion 7 of the electric vacuum cleaner 1.

The housing recess 54 includes a power supply terminal 55 connected to the power supply terminal 19 disposed in the connecting pipe portion 3. That is, when the electric vacuum cleaner 1 is hung on the holder 50, the power terminal 19 of the electric vacuum cleaner main body and the power supply terminal 55 of the holder 53 of the holder 50 are connected. Thereby, power is supplied from the power supply terminal 55 connected to the external power supply to the power supply terminal 19. Then, the secondary battery 17 (see fig. 9) built in the electric vacuum cleaner main body is charged with the supplied electric power.

As shown in fig. 13 and 14, the holder 50 includes a base 51 disposed below. The base 51 includes a pillar portion 52 disposed on an upper surface 51a formed by a flat surface. On the other hand, the suction nozzle 5 of the vacuum cleaner 1 is housed in an upper surface 51b of the base 51 formed by an inclined surface.

That is, the suction nozzle 5 of the electric vacuum cleaner 1 is brought into contact with the inclined upper surface 51b of the base 51 and slid downward along the upper surface 51 b. Thereby, the electric vacuum cleaner 1 is stored and held in the holder 50.

The holder 50 is configured such that the hose 57 can be detachably accommodated between the base 51 and the holding portion 53.

Specifically, as shown in fig. 15, the hose 57 can be detached from the holder 50, and one end 57a of the detached hose 57 can be detachably attached to the connecting pipe portion 3 of the electric vacuum cleaner main body of the electric vacuum cleaner 1. At this time, an additional suction nozzle 58 for various purposes shown in fig. 12 and the like can be detachably attached to the other end 57b side of the hose 57. That is, the hose 57 is attached to the connecting pipe portion 3, whereby the cleaning operation can be performed as the hand-held electric vacuum cleaner 1.

As shown in fig. 16, the holder 50 includes a plurality of nozzle holes 59 formed in a circular hole shape, for example, on the upper surface 51a of the base 51. The nozzle hole portion 59 is inserted by the mounting portion of the additional nozzle 58. This enables the additional suction nozzle 58 to be collectively housed in the same holder 50 as the electric vacuum cleaner 1. As a result, the holder 50 having excellent storage property can be realized.

The diameter of the circle of the nozzle hole portion 59 is set to be larger than the outer diameter of the attachment portion of the additional nozzle 58 for various purposes. This facilitates insertion of the additional suction nozzle 58 into the corresponding suction nozzle hole portion 59.

As shown in fig. 16 and 17, the holder 50 includes a circular hole-shaped hose recess 60 dedicated to the hose 57 in the base 51. The hose recess 60 has a boss 61 formed to protrude upward from the bottom of the base 51. The hose recess 60 includes a groove 62 provided around the entire circumference between the inner peripheral wall 60a of the hose recess 60 and the outer peripheral wall 61a of the circular truncated cone-shaped projection 61. At this time, the diameter of the circle of the circular hole-shaped hose recess 60 is set to be larger than the outer diameter of the attachment portion of the hose 57. The maximum outer diameter of the circular truncated cone-shaped projection 61 is set smaller than the inner diameter of the tube 57. Thus, when the hose 57 is inserted into the hose recess 60, the outer peripheral wall 61a of the circular truncated cone-shaped projection 61 first enters the inside from the end of the hose 57. At this time, since the inclination of the circular truncated cone shape of the convex portion 61 serves as a guide portion, the hose 57 can be easily put into the hose concave portion 60. Further, the outer peripheral wall 61a of the convex portion 61 of the hose concave portion 60 and the inner periphery of the hose 57 are formed to have a sufficient clearance, and thus insertion is easier. Also after insertion, the boss 61 enters into the interior of the hose 57. This can more reliably prevent the end portion of the tube 57 from being deformed by being recessed inward by the outer peripheral wall 61a of the projection 61.

On the other hand, as shown in fig. 18 and 19, the holding portion 53 of the holder 50 includes a rectangular-truncated-pyramid-shaped projection 63 formed on the lower side thereof, for example, to which the hose 57 is attached. One end 57a of the hose 57 can be fitted into the projection 63. Thus, both ends of the hose 57 are detachably held by the convex portions 61 and 63 of the holder 50.

As shown in fig. 19, at least two opposing side surfaces of the four rectangular-truncated-pyramid-shaped side surfaces of the convex portion 63 are formed in a shape spreading upward from below. At this time, the maximum dimension (corresponding to a diagonal line) of the rectangular-truncated-pyramid-shaped projection 63 in the cross section in the front-rear direction is set larger than the inner diameter of the tube 57. This can keep the hose 57 and the projection 63 in the press-fit state. As a result, the hose 57 can be more reliably prevented from coming off the convex portion 63 of the holding portion 53 due to the weight of the hose 57.

The holder 50 according to embodiment 2 is configured as described above.

The operation of attaching the hose 57 to the holder 50 will be described below.

First, for example, one end 57a of the hose 57 is inserted into a hose recess 60 having a circular hole shape dedicated to the hose 57 provided in the base 51 of the holder 50. Then, for example, the other end 57b of the hose 57 is fitted into the projection 63 provided below the holding portion 53. Thereby mounting and retaining the hose 57 to the holder 50.

In the holder 50 according to embodiment 2, the attachment nozzle 58 and other attachments are collectively housed in the same portion as the electric vacuum cleaner 1. Therefore, it is not necessary to additionally secure a storage place for the accessories.

In embodiment 2, the length of the column portion 52 is configured to be substantially the same (including the same) as the length of the hose 57. That is, the length of the tube 57 is set to be substantially the same (including the same) as the length from the bottom surface 60b of the tube recess 60 provided in the base 51 to the press-fitting portion of the tube 57 that is press-fitted into the projection 63 of the holding portion 53. This allows the hose 57 to be held and stored in the holder 50 in an extended state. Therefore, the occurrence of wrinkles due to bending of the hose 57 can be prevented, and the appearance at the time of storage can be improved. Moreover, deterioration of the hose 57 due to wrinkles can be prevented in advance. In addition, it is not necessary to additionally secure a space for housing the hose 57. Therefore, the electric vacuum cleaner 1 and the holder 50 can be configured to be easy for the user to use and to have excellent storage performance.

While the embodiments 1 and 2 have been described above, the electric vacuum cleaner of the present embodiment includes various embodiments described below.

For example, as shown in fig. 2, the electric vacuum cleaner of each embodiment is configured such that the center of gravity GG of the handle portion 9 is located between the axis D of the electric blower 10 and the axis H of the connecting pipe portion 3 in the vertical direction of the electric blower 10. At this time, it is more preferable that the center of gravity GG of the handle portion 9 is located closer to the axis D of the electric fan 10 than the axis H of the connecting pipe portion 3.

According to this configuration, when the user holds the handle 9 to perform cleaning, the cleaning can be stably performed even in the case of the structure in which the electric fan 10 is disposed above the axis H of the connecting pipe portion 3.

As another embodiment, as shown in fig. 3, the power supply terminal 19 of the electric vacuum cleaner 1 is located at a position not intersecting the extension line J. Therefore, when the electric vacuum cleaner main body is placed on the floor, that is, when the bottom surface 7a of the lower arm portion 7 contacts the floor, the power supply terminal 19 is configured not to contact the floor.

According to the above-described configuration shown in fig. 3, when the electric vacuum cleaner main body is placed on the floor, the power supply terminal 19 does not contact the floor. Therefore, the risk of damage to the power supply terminal 19 can be reduced.

According to the invention relating to the battery housing portion 36 described with reference to fig. 9 and 10, the length of the cable 45 required for housing the secondary battery 17 in the battery housing portion 36 can be ensured during production. Therefore, the possibility of disconnection of the cable 45 in a state where the secondary battery 17 is housed in the battery housing portion 36 can be reduced.

According to the structure of the brush storage part 31 shown in fig. 7 and 8, the brush 24 is hidden by the brush storage side wall 32 and the brush storage rear wall 33 and is not easily seen from the outside in the state where the dust box 11 is connected to the connecting pipe part 3. This can improve the aesthetic appearance of the electric vacuum cleaner 1.

Further, when the electric vacuum cleaner 1 is used, the brush housing side wall 32 and the brush housing rear wall 33 prevent the tip end of the brush 24 from touching the clothes of the user. The scattering of dust attached to the tip end of the brush 24 is also prevented. Further, the brush 24 can be prevented from coming off the dust box 11 when the electric vacuum cleaner 1 is used.

According to the above-described means shown in fig. 12 and 13, the tube 57 can be stored in the holder 50 in a state in which the tube 57 is extended. In addition, it is not necessary to additionally secure a space for housing the hose 57. Therefore, the holder 50 can be easily used by the user and has a structure excellent in storage property.

(embodiment mode 3)

An electric vacuum cleaner 1 according to embodiment 3 of the present invention will be described below with reference to fig. 20.

Fig. 20 is a partial side view of the periphery of the body 2 and the connecting tube 3 in embodiment 3.

As shown in fig. 20, the electric vacuum cleaner 1 according to embodiment 3 is different from embodiment 1 in that the electric vacuum cleaner 1 according to embodiment 3 includes a rear inclined portion 64 that is inclined forward and downward from a point P on the rear surface side of the upper arm portion 6 toward the handle portion 9. Here, the rear surface side of the upper arm portion 6 corresponds to a portion which is brought into contact with the vicinity of the base of the thumb when the user grips the grip portion 9. Since other structures are the same as those in embodiment 1, descriptions thereof are omitted.

That is, the electric vacuum cleaner 1 of embodiment 3 includes: a front inclined portion 20 inclined rearward and downward from a front point N to a rear point O above the space portion 21; and a rear inclined portion 64 inclined forward and downward from the rear point P toward the grip portion 9. With this configuration, when the user grips the grip portion 9, the front inclined portion 20 reliably comes into contact with the index finger of the user, and the rear inclined portion 64 reliably comes into contact with the vicinity of the base of the thumb of the user.

This makes it possible to disperse the force applied to the hand of the user (particularly, near the base of the index finger and thumb) by the upper arm portion 6 during cleaning or the like, and to avoid application of a large force to a local portion of the hand of the user as much as possible. As a result, the user can easily operate the electric vacuum cleaner 1 and perform cleaning easily.

In embodiment 3, a configuration in which the inclination (inclination) of the front inclined portion 20 is larger than the inclination (inclination) of the rear inclined portion 64 as shown in fig. 20 is described as an example, but the present invention is not limited thereto. For example, the inclination of the rear inclined portion 64 may be larger than the inclination of the front inclined portion 20.

(other embodiments)

The specific form that can be adopted by the present electric vacuum cleaner is not limited to the form exemplified in the above-described embodiments. The present electric vacuum cleaner can adopt various modes different from the above-described embodiments within the scope of achieving the object of the present invention. The modifications of the above embodiments described below are examples of various embodiments that can be adopted by the present electric vacuum cleaner.

For example, in the above embodiment, the configuration using the secondary battery 17 is described as an example, but the present invention is not limited thereto. For example, a primary battery that cannot be charged may also be used. In this case, a structure in which the user can easily replace the primary battery when the primary battery is exhausted is preferable. That is, for example, the battery cover 37 may be configured to be slidable with respect to the main body 2 without fixing the battery cover 37 with screws or the like. This allows the user to slide the battery cover 37 and easily attach and detach the battery cover to and from the main body 2.

In the above embodiment, the description has been given of the case where the secondary battery 17 built in the electric vacuum cleaner main body can be charged when the electric vacuum cleaner 1 is hung on the holder 50, but the present invention is not limited thereto. For example, the following modes are also possible: the electric power from the power adapter is connected to the electric vacuum cleaner main body, and the electric vacuum cleaner 1 can be used by using the electric power supplied from the power adapter. The holder 50 may not have a function of charging the secondary battery 17 built in the electric vacuum cleaner main body. In addition, the holder can be easily provided so that the electric vacuum cleaner 1 can be hung on the holder. That is, the holder may have a function of charging the secondary battery 17 or may not have a function of charging the secondary battery 17, either.

In the above embodiment, the configuration in which the brush housing section 31 is provided in the connecting pipe section 3 has been described as an example, but the present invention is not limited to this. For example, the brush housing portion 31 may not be provided in the connecting tube portion 3. In this case, the user can take out the brush 24 while the dust box 11 is connected to the connecting pipe portion 3.

In the above embodiment, the description has been given of the configuration in which the axis of the dust box 11 and the axis of the electric fan 10 are at substantially the same (including the same) position as the axis D, but the present invention is not limited thereto. The axis of the dust box 11 and the axis of the electric fan 10 may be offset from each other.

In the above embodiment, the battery housing wall 39 is formed by a member independent from the chassis 47 and the body 48 of the electric vacuum cleaner 1, but the present invention is not limited thereto. For example, the battery housing wall 39 may be integrally formed with the chassis 47.

As described above, the vacuum cleaner of the present invention includes the main body having the upper arm portion, the lower arm portion, the intermediate portion, and the grip portion, and the intermediate portion and the grip portion are interposed between the upper arm portion and the lower arm portion with the space portion interposed therebetween. The handle portion is arranged obliquely from the upper arm portion toward the lower rear side, and the main body portion has an inclined portion which is continuous with and arranged obliquely with respect to the handle portion and the upper arm portion above the space portion.

In the electric vacuum cleaner of the present invention, a portion of the upper arm portion located rearward of a connecting portion between the upper arm portion and the handle portion protrudes rearward.

In addition, the front inclined part of the electric dust collector of the invention inclines downwards from the front to the back.

In addition, the upper arm part of the electric dust collector of the invention inclines upwards from the front to the back.

The electric vacuum cleaner of the present invention further includes a dust collecting box that is detachable from the main body, and the electric blower is incorporated in an intermediate portion of the main body that is interposed between the upper arm portion and the lower arm portion. The dust box is attached to the main body such that an axis of the dust box and an axis of the electric fan are substantially on the same axis.

In the electric vacuum cleaner of the present invention, a connecting pipe part having a 1 st opening is connected to the front of the main body part, the dust collecting box has a 2 nd opening and a 3 rd opening, and the main body part has a 4 th opening. In addition, in the state that the dust collecting box is installed on the main body part, the 1 st opening part is connected with the 2 nd opening part, and the 3 rd opening part is connected with the 4 th opening part, thereby forming an air flow path among the connecting pipe part, the dust collecting box and the electric fan in the main body part.

In the electric vacuum cleaner of the present invention, the lower arm portion extends obliquely rearward with respect to the connecting pipe portion.

In the vacuum cleaner of the present invention, the upper arm portion has a rear inclined portion on the rear surface side, and the rear inclined portion is formed to be inclined forward and downward from the rear end of the upper arm portion toward the handle portion.

Industrial applicability

The present invention is useful for an electric vacuum cleaner that can be widely used in general homes, offices, and the like.

Description of the reference numerals

1. An electric vacuum cleaner; 2. a main body portion; 3. a connecting pipe portion; 3a, 7c, front portion; 4. an extension tube; 5. a suction nozzle; 6. an upper arm portion; 6a, 7a, 31a, bottom surface; 7. a lower arm portion; 7b, a connecting portion; 8. an intermediate portion; 9. a handle portion; 9a, a central portion; 10. an electric fan; 11. a dust collecting box; 12. 1 st opening; 13. a 2 nd opening; 14. a 3 rd opening; 15. a 4 th opening; 16. an exhaust port; 17. a secondary battery; 18. a power terminal connection surface; 19. a power supply terminal; 20. a front inclined portion; 21. a space section; 22. a cover portion; 23. an opening/closing lever; 24. a brush; 25. 1 st holding part; 26. the 2 nd holding part; 27. a sliding part; 28. a protrusion; 29. 1 st connecting recess; 30. a 2 nd connecting recess; 31. a brush housing section; 32. a brush receiving sidewall; 33. the brush is accommodated in the rear wall; 34. a receiving recess; 35. a check valve; 36. a battery housing section; 37. a battery cover portion; 38. a receiving recess; 39. a battery housing wall; 40. a rear wall; 41. a rib; 42. a front wall; 43. a side wall; 43a, rear end; 44. a top facing wall; 45. a cable; 46. a top portion; 47. a chassis; 48. a body; 49. an aperture; 50. a holder; 51. a base; 51a, 51b, 53a, upper surface; 52. a pillar portion; 53. a holding section; 54. a receiving recess; 55. a power supply terminal; 56. a receiving projection; 57. a hose; 57a, one end; 57b, the other end; 58. an additional suction nozzle; 59. a suction nozzle hole portion; 60. a hose recess; 60a, an inner circumferential wall; 60b, a bottom surface; 61. 63, a convex part; 61a, an outer peripheral wall; 62. a groove; 64. a rear inclined portion; A. a fulcrum; B. c, an arrow; D. g, H, Q, an axis; E. f, height size; GG. A center of gravity; I. r, S, angle; J. an extension line; K. m, N, O, P, dots; l, length.

Claims (1)

1. An electric vacuum cleaner, in which,

the electric dust collector comprises a main body part and a dust collecting box which can be assembled and disassembled relative to the main body part, wherein the main body part is provided with a middle part, an upper arm part and a lower arm part which are connected with the middle part, and a handle part which is arranged between the upper arm part and the lower arm part,

an electric fan is arranged in the middle part,

the dust collecting box and the connecting pipe part are arranged in front of the main body part,

the dust collecting box is arranged above the connecting pipe part,

the electric fan is located behind the dust collecting box, the lower arm is located below the electric fan, and a battery is arranged on the lower arm.

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