JP2020081900A - Suction tool and electric cleaner - Google Patents

Abstract

To provide a suction tool and an electric cleaner that have good operability.SOLUTION: A suction tool 2 has an extension pipe connection unit 6 that can connect to an extension pipe 1, and a suction tool body 4. The suction tool has a rotating body disposition space 10, in which the distal end of the extension pipe connection unit 6 is positioned, formed behind the suction tool body 4 and above the top face of the suction tool body 4, and has, in the suction tool body 4 in front of the rotating body disposition space 10, a bump 7 that is a convex section higher than the top face of the suction tool body 4 under the rotating body disposition space 10. The distal end of the extension pipe connection unit 6 is rotatably connected to the suction tool body 4 in the rotating body disposition space 10.SELECTED DRAWING: Figure 5

Description

The present invention relates to a suction tool and a vacuum cleaner.

A number of technologies related to a vacuum cleaner in which a suction tool is connected to the tip of the extension pipe and a grip portion for the user to hold on the other end, that is, a so-called stick type vacuum cleaner are disclosed (for example, Patent Document 1). 1).

Further, an electric vacuum cleaner is disclosed in which a suction port body and a suction pipe are connected to a surface corresponding to one end in the longitudinal direction of the suction port body (Patent Document 2).

JP-A-4-122346 JP, 2016-214508, A

However, in the vacuum cleaner described in Patent Document 2, since the suction pipe is connected to one end surface of the suction port body, when the user tries to move the nozzle in the front, rear, left, and right directions, the nozzle will be stable. It may not move. Further, when the user cleans, the connecting portion between the suction port body and the suction pipe is overloaded and may be damaged.

The present invention is a suction tool having an extension tube connection part connectable to an extension tube, a rotating body connected to the extension tube connection part, and a suction tool body, which is behind the suction tool body. A rotating body arrangement space in which the rotating body is located is formed above an upper surface of the suction tool body, and the suction body below the rotating body arrangement space is provided in front of the rotation body arrangement space in the suction tool body. There is a hill portion that is a portion that is convex above the upper surface of the tool body, the hill portion has a slope that gradually increases in height from the front to the rear, the lateral direction of the suction tool body. In the suction tool, the diameter of the rotating body is smaller than the diameter of the hill portion, and the diameter of the extension pipe connecting portion is smaller than the diameter of the rotating body. Moreover, it is an electric vacuum cleaner which has such a suction tool.

In the present invention, when the user operates the grip portion, the suction tool can be freely rotated, moved back and forth, etc. according to the operation, so that the suction tool and the electric vacuum cleaner which are easy to use can be provided.

Further, it is possible to reduce the possibility that the suction tool is damaged due to an excessive load in the vicinity of the connecting portion between the suction tool and the extension tube, as compared with the conventional case.

It is a side view of the electric vacuum cleaner of a present Example. It is a side view of the suction tool of a present Example. It is a top view of the suction tool of a present Example. It is a bottom view of the suction tool of the present embodiment. It is a perspective view of the suction tool of a present Example. It is a perspective view of the suction tool of a present Example. It is a perspective view of the suction tool of a present Example. It is a perspective view of the suction tool of a present Example. It is sectional drawing of the suction tool of a present Example. It is a side view of the electric vacuum cleaner of a present Example. It is a perspective view of the electric vacuum cleaner in the state which rotated the handle part in the arrow E direction. It is a perspective view of the vacuum cleaner in the state where the handle part was rotated in the direction of arrow F. It is a perspective view which shows operation|movement of a suction tool at the time of rotating a handle part and a suction tool. It is a perspective view which shows operation|movement of a suction tool at the time of rotating a handle part and a suction tool. It is a perspective view which shows operation|movement of a suction tool at the time of rotating a handle part and a suction tool. It is a perspective view of a handle part. It is a perspective view showing a state where a user holds a handle. It is sectional drawing of a handle part. It is a top view of a handle part. It is a bottom view of a handle part. It is a perspective view of a handle part. FIG. 20 is a left side view of the handle portion viewed from the left in FIG. 19. It is a right view of the handle part seen from the right direction in FIG. It is a side view when the electric vacuum cleaner body is leaned against a wall or the like. It is a perspective view of a front part. It is a perspective view of a front part. It is a perspective view of a front part. It is a perspective view of an intermediate part and a back part. It is the perspective view which looked at the handle part from the back.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same or corresponding parts will be denoted by the same reference symbols, without redundant description. Further, the present invention is not limited to the embodiments.

A first embodiment is a suction tool having an extension tube connection part that can be connected to an extension tube and a suction tool body, which is behind the suction tool body and above the upper surface of the suction tool body. A rotator arrangement space in which the tip is located is formed, and in the suction tool body, in front of the rotator arrangement space, a hill portion that is a portion that is convex above the upper surface of the suction tool body below the rotator arrangement space. And a tip end of the extension pipe connecting portion is rotatably connected to the suction tool body in the rotating body disposition space.

The second embodiment has a rotating body arranged in the rotating body arrangement space, and the rotating body is connected to the suction tool body and extended so as to be rotatable in the lateral direction of the suction tool body. It is a suction tool in which the tip of the pipe connecting portion is connected to the rotating body.

The third embodiment is a suction tool in which the extension tube connection portion is connected to the rotating body so as to be rotatable in the longitudinal direction of the suction tool body.

In the fourth embodiment, the rotating body has a portion whose surface is a curved surface, the suction tool body has a first concave portion having a curved surface in an upper surface portion facing the rotating body arrangement space, and the rotating body has a first portion. The suction tool rotates in the lateral direction of the suction tool body by rotating on the recess.

In the fifth embodiment, the rotating body has a rotating body opening that is opened so as to extend in the longitudinal direction of the suction tool body, and the extension pipe connection portion is loosely fitted to the rotating body within the rotating body opening. The suction tool is rotatable along the opening of the rotating body in the longitudinal direction of the suction tool body. Further, a sixth embodiment is an electric vacuum cleaner having these suction tools.

(Example)
Hereinafter, the suction tool and the electric vacuum cleaner in this embodiment will be described.

FIG. 1 is a perspective view of the electric vacuum cleaner according to the present embodiment. In the vacuum cleaner of the present embodiment, a suction tool 2 is connected to the tip of the extension tube 1, and a handle portion 3 for a user to hold and operate is connected to the rear end of the extension tube 1. There is. The user can move the electric vacuum cleaner by holding the handle 3.

The extension tube 1 may have a stretchable shape or a non-stretchable shape. Further, in this embodiment, the length of the extension pipe 1 is about 65 cm, but the length of the extension pipe 1 is not limited to this length. As another example of the length of the extension tube 1, an extremely short extension tube such as 25 to 50 cm may be used.

The material of the extension tube 1 is, for example, aluminum alloy, ABS resin, PP (polypropylene), and the material of the housing of the suction tool 2 is, for example, ABS resin, PP (polypropylene), PC (polycarbonate), and the grip portion 3 As the material of the housing, for example, ABS resin, PP (polypropylene), PC (polycarbonate), or the like is used. It should be noted that these materials are merely examples and the present invention is not limited to these.

A suction port for sucking dust is formed on the back surface side of the suction tool 2, a power source section, a suction motor, and a dust collecting section are arranged inside the grip section 3, and further, the grip section 3 has a front surface. A power button or the like for turning on or off the drive of the suction motor is arranged.

When the user operates the power button, the suction motor is driven, and the suction air generated by the suction motor sucks dust from the suction port formed on the back side of the suction device 2 to extend the suctioned dust. It is accommodated in the dust collecting part through the pipe 1.

The dust collecting portion may be provided with a dust collecting bag or a cyclone type dust collecting portion.

FIG. 2 is a side view of the suction tool 2 shown in FIG. The suction tool 2 of the present embodiment is a suction tool body 4 and a rear portion of the suction tool body 4, and is rotatably connected to the suction tool body 4 in a space above the upper surface of the suction tool body 4. The rotating body 5 and the extension pipe connecting portion 6 rotatably fitted to the rotating body 5 are provided. Further, the extension pipe 1 is detachably connected to the extension pipe connecting portion 6.

The front side of the suction tool body 4 is on the left side in FIG. 2, the rear side of the suction tool 2 is on the right side in FIG. 2, the upper side of the suction paper body is above the suction tool body 4 in FIG. 2, and the suction tool body is on the lower side in FIG. It is below 4.

In the suction tool 2 shown in FIG. 2, the surface gradually rises from the front end of the suction tool body 4 to the substantially middle portion with a gentle curved surface, and the rotating body 5 is connected from the substantially middle portion of the suction tool body 4. A hill portion 7 having a height is formed up to the portion. Further, the upper surface portion of the suction tool body 4 located behind the hill portion 7 is lower in height than the hill portion 7.

Further, the height from the bottom surface of the rear portion of the suction tool body 4 to the upper surface of the rotating body 5 is substantially the same as the height from the bottom surface of the suction tool body 4 to the top surface of the hill portion 7, or more than the height of the hill portion 7. Is also slightly lower. For this reason, even when the user inserts the suction tool body 4 into a low-height place such as the back of the sofa from the floor surface to perform cleaning, the rotating body 5 hits the back surface of the sofa to damage or rotate the back surface of the sofa. The situation where the body 5 is damaged can be avoided as much as possible.

FIG. 3 is a plan view of the suction tool 2 shown in FIG. As described above, the suction tool 2 of the present embodiment includes the suction tool body 4, the rotating body 5 rotatably connected to the rear side of the suction tool body 4, and the suction tool 2 rotatably fitted to the rotating body 5. The extended pipe connecting portion 6 is formed.

In FIG. 3, the lateral direction of the drawing is the longitudinal direction of the suction tool body 4, and the vertical direction of the drawing is the lateral direction of the suction tool body 4.

FIG. 4 is a bottom view of the suction tool 2. A suction port 9 for sucking dust is formed substantially in the center of the suction tool body 4.

In FIG. 4, the lateral direction of the drawing is the longitudinal direction of the suction tool body 4, and the vertical direction of the drawing is the lateral direction of the suction tool body 4.

FIG. 5 is a perspective view of the suction tool 2. The suction tool body 4 of the suction tool 2 is about 16 cm in the longitudinal direction and about 6 cm in the lateral direction. Further, a recess is provided in a range of a length of about 3 cm from one rear end surface in the longitudinal direction of the suction tool body 4 toward the front of the suction tool 2, and this recessed portion (first recess 11 described later) The rotating body 5 is arranged in the. In addition, in this embodiment, the space in which the rotating body 5 is arranged above the surface where the recessed portion is formed is referred to as a rotating body arrangement space 10. Further, these lengths are examples and it is possible to design with different lengths.

A first recess 11 having a curved cross section is formed in a portion of the suction tool body 4 below the rotating body placement space 10, and pedestals 12 are formed on both left and right sides of the first recess 11. ing. The rotating body 5 is rotatably connected to the suction tool body 4 at the rear end portion of the hill portion 7.

Further, the side surface of the rotating body 5 has a curved surface, and the rotating body 5 can rotate so as to slide on the first recess 11 or with a slight gap between the rotor 5 and the first recess 11. .. The rotating body 5 is rotatable in the lateral direction of the suction tool body 4, and is rotatable from the direction of arrow A to the direction of arrow B and from the direction of arrow B to the direction of arrow A in FIG. An extension pipe connecting portion 6 is rotatably connected to the rotating body 5. The extension pipe connecting portion 6 will be described later in detail. Further, in FIG. 5, it can be said that one end of the extension pipe connecting portion 6 is arranged in the rotating body arrangement space 10.

FIG. 6 is a perspective view showing a state in which the rotating body 5 of the suction tool 2 shown in FIG. 5 is rotated in the arrow B direction.

As shown in FIG. 6, when the rotating body 5 is rotated in the direction of the arrow B, the extension pipe connecting portion 6 is attached to one pedestal portion 12 (in FIG. 6, the pedestal portion 12 existing on the back side of the suction tool body 4). Abutting on each other, the rotation of the rotating body 5 at a certain angle or more in the B direction is restricted.

7: is a perspective view which shows the state which rotated the rotary body 5 of the suction tool 2 shown in FIG. 5 in the arrow A direction.

As shown in FIG. 7, when the rotating body 5 is rotated in the direction of arrow A, the extension pipe connecting portion 6 is moved to the other pedestal portion 12 (in FIG. 7, the pedestal portion 12 existing on the front side of the suction tool body 4). Abutting on each other, the rotation of the rotating body 5 over a specific angle in the A direction is restricted.

Thus, the rotating body 5 rotates in the range of about 180 degrees from the state shown in FIG. 6 to the state shown in FIG. 7 and from the state shown in FIG. 7 to the state shown in FIG. The rotating body 5 is connected to the suction tool body 4 with an axis extending in the longitudinal direction of the suction tool 2 as an axis, and with this axis as a fulcrum, an angle of about 180 degrees is formed in the lateral direction of the suction tool 2. It rotates in a range.

As shown in FIG. 8, the rotating body 5 of the present embodiment is a rotating body that opens from the rear of the rotating body 5 (direction of arrow D shown in FIG. 8) to the front of the rotating body 5 (direction of arrow C shown in FIG. 8). The opening 8 is formed, while the distal end portion of the extension pipe connecting portion 6 (the portion of the extension pipe connecting portion 6 on the suction tool body 4 side) is substantially hemispherical. The tip portion of the extension pipe connecting portion 6 may have a substantially spherical shape.

A space is formed inside the rotating body 5 so that a substantially hemispherical portion at the tip of the extension pipe connecting portion 6 can be loosely fitted therein. In this embodiment, this space portion is referred to as a second concave portion 13. (See FIGS. 8 and 9).

Since the tip of the extension pipe connecting portion 6 is loosely fitted in the second recessed portion 13, the extension pipe connecting portion 6 extends in the longitudinal direction of the suction tool 2, that is, in the direction from arrow C to arrow D shown in FIG. It can be rotated in the direction from arrow D to arrow C.

The tip of the extension pipe connecting portion 6 is loosely fitted in the second recess 13 of the rotary body 5, but the tip of the extension pipe connecting portion 6 is rotatably connected to the rotary body 5. However, other configurations are possible.

When the extension pipe connecting portion 6 is rotated in the direction of the arrow C shown in FIG. 8, the extension pipe connecting portion 6 is at an angle of approximately 90 degrees with respect to the suction tool body 4, as shown in FIG. The side surface of the extension pipe connecting portion 6 contacts the end portion of the rotating body opening portion 8, and the extension pipe connecting portion 6 rotates in the direction of arrow C in FIG. It regulates that.

On the other hand, when the extension pipe connecting portion 6 is rotated in the direction of the arrow D shown in FIG. 8, as shown in FIG. 8, the extension pipe connecting portion 6 forms an angle of approximately 140 degrees with respect to the suction tool body 4 (with respect to the floor surface). Angle of about 40 degrees). The side surface of the extension pipe connecting portion 6 abuts on the end portion of the rotating body opening portion 8 provided on the rear side of the rotating body 5, and the extension pipe connecting portion 6 forms an angle of about 140 degrees or more with respect to the suction tool body 4. , Rotation in the direction of arrow D in FIG. 8 is restricted.

In the present embodiment, the extension pipe connecting portion 6 is restricted from rotating in the arrow D direction with respect to the suction tool body 4 by an angle of approximately 140 degrees (approximately 40 degrees with respect to the floor surface). However, the angle is not limited to this and may be another angle. For example, the extension pipe connection portion 6 may be configured to rotate up to an angle of about 180 degrees with respect to the suction tool body 4.

In the suction tool of the present embodiment and the vacuum cleaner equipped with this suction tool, when the user pushes the grip portion 3 forward, the force of the user causes the extension pipe 1, the extension pipe connection portion 6, and the rotation. Since it is surely transmitted to the body 5 and the suction tool body 4, the user can easily push the suction tool 2 forward. That is, it can be said that the device of this embodiment is an electric vacuum cleaner that is easy for the user to clean.

In the suction tool of the present embodiment and the vacuum cleaner equipped with this suction tool, if the rotating body 5 slides on the upper surface of the rear part of the suction tool body 4, the user's force is applied from the rotating body 5. Although surely transmitted to the upper surface of the rear part of the suction tool body 4, if the rotating body 5 has a slight gap with the upper surface of the rear part of the suction tool body 4, the rotating body 5 may be made of resin or the like to some extent. If the material has elasticity, when the user pushes the grip portion 3, the rotating body 5 comes into contact with the upper surface of the rear portion of the suction tool body 4, and the force of the user is It can be reliably transmitted to the connection part of the suction tool body 4 and the rear part of the suction tool body 4.

Further, since the rotating body 5 may be supported not only on the connecting portion with the suction tool body 4 but also on the surface of the suction tool body 4 existing below the rotating body disposing space 10, the user can hold the grip portion 3 by the user. It is possible to avoid as much as possible a situation where an excessive force is applied to the connection portion between the extension pipe connection portion 6 and the suction tool body 4 when carrying it and cleaning it, and the connection portion is damaged.

Further, by providing play at the connecting portion between the rotating body 5 and the suction tool body 4, when a force is applied to the rotating body 5 in the floor surface direction when the user applies a force to the handle portion 3, Due to the play described above, the body 5 moves slightly toward the floor surface, and the rotating body 5 is supported by the surface of the suction tool body 4 existing below the rotating body arrangement space 10. In such a configuration, the rotating body 5 may or may not be an elastic material such as resin.

The suction tool of the present embodiment and the vacuum cleaner equipped with the suction tool have an excellent aesthetic appearance because the rotary body 5 does not project rearward from the rear portion of the suction tool body 4. Have

Further, not only can the extension pipe connecting portion 6 be rotated in the longitudinal direction of the suction tool 2, that is, the direction of arrow C to arrow D shown in FIG. 8, but also the extension pipe connecting portion 6 can be rotated in the lateral direction of the suction tool 2, that is, It can rotate in the directions of arrows A and B shown in FIG. 7. In other words, since the extension pipe connection portion 6 can be rotated with respect to the suction tool main body 4 in either the longitudinal direction or the lateral direction of the suction tool 2, the user can use various directions. Cleaning can be performed by rotating the suction tool 2 at the same time. Therefore, it can be said that the degree of freedom of operation of the electric vacuum cleaner by the user is significantly improved as compared with the related art.

In addition, the upper surface is a smooth curve from the substantially central portion of the suction tool body 4 toward the tip. This configuration not only prevents the furniture from being damaged when the upper surface of the suction tool body 4 collides with furniture or the like, but also contributes to improving the aesthetic appearance. Further, because of such a shape, the suction tool body 4 can be inserted into a narrow place.

FIG. 9 is a cross-sectional view of the suction tool 2 of this embodiment. In FIG. 9, a tip portion of the extension pipe connecting portion 6 has a substantially hemispherical shape, and the substantially hemispherical portion is loosely fitted in the rotating body 5. Therefore, the extension pipe connecting portion 6 is rotatable with respect to the rotating body 5 in the longitudinal direction of the suction tool body 4.

In addition, a concavo-convex rotary body loose fitting portion 14 is formed at the tip end portion of the rotating body 5, and a portion of the suction tool 2 connected to the tip end portion of the rotating body 5 also has a concavo-convex shape suction tool loose fitting. The part 15 is formed. The rotor loose fitting portion 14 and the suction tool loose fitting portion 15 are rotatably fitted to each other. Therefore, the rotating body 5 is rotatable with respect to the suction tool body 4 in the lateral direction of the suction tool body 4.

Since the space between the suction port 9 formed in the bottom surface of the suction tool body 4, the flow path 16 in the suction tool body 4, the inside of the rotating body 5 and the inside of the extension pipe connecting portion 6 communicates with each other, The absorbed dust on the floor surface passes through these spaces, then passes through the inside of the extension pipe 1, and is collected in the dust collecting portion of the handle portion 3.

A sensor (so-called dust sensor) having a light emitting portion and a light receiving portion for detecting dust is arranged at any position inside the flow path 16 inside the suction tool body 4, inside the rotating body 5 and inside the extension pipe connecting portion 6. However, a light emitting part, such as an LED (Light Emitting Diode), which emits light when the sensor detects dust, may be provided on the surface of the suction tool body 4, the handle part 3, or the like. In such a case, for example, a secondary battery or the like may be mounted inside the suction tool body 4.

By providing such a light emitting portion on the surface of the suction tool body 4, for example, on the hill portion 7, the user can easily recognize whether or not dust is sucked from the suction tool body 4.

The dust sensor described above is not limited to the sensor that detects the passage of dust between the light emitting unit and the light receiving unit, and may be a sensor that detects the collision of dust.

FIG. 10 is a side view of the vacuum cleaner that is the device of this embodiment. When the user holds the grip portion 3 and rotates the grip portion 3 in the direction of arrow E in FIG. 10 (when the grip portion 3 is rotated to the right side when viewed from the user holding the grip portion 3), as shown in FIG. The suction tool 2 also rotates in the direction of arrow E (right side when viewed from the user holding the handle portion 3).

On the other hand, when the user holds the grip portion 3 and rotates the grip portion 3 in the direction of arrow F in FIG. 10 (when the grip portion 3 is rotated leftward when viewed from the user holding the grip portion 3), the result is shown in FIG. As described above, the suction tool 2 also rotates in the direction of arrow F (left side when viewed from the user holding the handle portion 3).

In this way, when the user rotates the handle part 3 to the right side, the suction tool 2 also rotates to the right side, and when the handle part 3 rotates to the left side, the suction tool 2 also rotates to the left side. The suction tool 2 can be rotated in a desired direction simply by rotating the portion 3. Next, such operation will be described in more detail.

First, the operation when the user rotates in the direction of arrow F in FIG. 10 while holding the grip portion 3 will be described in more detail. 13 to 15 are perspective views showing the operation of the suction tool 2 when rotating the grip portion 3 and the suction tool 2 to the left (arrow G side).

In FIG. 13, when the user rotates the grip portion 3 to the left, the extension pipe connecting portion 6 also rotates to the left (the arrow G side). Then, as shown in FIG. 14, as the extension pipe connecting portion 6 rotates, the rotating body 5 rotates downward to the left side (toward the arrow H direction), and at the same time, the extension pipe connecting portion 6 opens the rotating body opening portion 8. Moves forward (in the direction of arrow I) so as to abut the end face of. After that, as shown in FIG. 15, the suction tool body 4 and the extension tube connecting portion 6 are substantially perpendicular to each other, in other words, substantially L-shaped.

In this way, when the user rotates the grip portion 3 to the left, the suction tool 2 also rotates to the left. It should be noted that when the user rotates the grip portion 3 to the right, the suction tool 2 also rotates to the right, but since the same operation is performed as when the user rotates the grip portion 3 to the left, the description thereof will be omitted. ..

FIG. 16 is a perspective view of the handle portion 3. The handle portion 3 is entirely made of, for example, ABS resin, PP (polypropylene) or the like, and an extension pipe connecting portion 6 for connecting the extension pipe 1 made of, for example, an aluminum alloy is formed at the tip.

A normal user can perform cleaning by connecting the extension pipe 1 to the extension pipe connection portion 6, but the handle portion 3 is a so-called handy type cleaner in a state where nothing is connected to the extension pipe connection portion 6. Can be used. Alternatively, the user can connect the extension pipe connecting portion 6 of the suction tool body 4 to the extension pipe connecting portion 6 of the handle portion 3 for use.

In FIG. 16, an operating portion 17 is arranged on the upper surface side of the handle portion 3. The operation unit 17 includes a power button 18 for starting or stopping driving of the suction motor, and a power lamp 19 for indicating whether or not the power unit still has electric power or is being charged. A dust disposal lamp 20 for indicating whether or not the inside of the dust collecting portion is filled with dust is arranged.

As described above, the operation unit 17 includes an input unit that receives an input operation from the user and a display unit that indicates the state of the electric vacuum cleaner to the user. However, only the input unit or only the display unit is included. But good. A device such as a touch panel may be used as the input unit instead of the button, and a device such as a liquid crystal display device may be used as the display unit.

Further, around the operation portion 17, an operation protrusion 21 protruding from the housing surface of the handle portion 3 is arranged, and the operation portion 17 has a shape surrounded by the operation protrusion 21. The presence of the operation protrusion 21 makes it possible to prevent the user from accidentally pressing the power button 18 by mistake.

Although it has been described that the operation protrusion 21 is formed around the operation unit 17, it may be formed around the power button 18 described above. For example, when the input section for the user to perform the input operation is only the power button 18, even if the operation protrusion 21 is formed only around the power button 18, the user's erroneous operation can be avoided as much as possible. ..

Grooves 22 are formed on the surfaces of the handle portions 3 on both the left and right sides of the operation portion 17, respectively. The groove portion 22 extends in the vertical direction of the handle portion 3, and has a width of about 9 mm, a length of about 36 mm, and a depth of about 2 mm. Note that these numerical values are not limited to this value, and may be other numerical values.

When the user cleans the vacuum cleaner, he or she tries to move the main body of the vacuum cleaner in various directions such as front, rear, left, and right. May slip, and as a result, the user's force may not be sufficiently transmitted to the vacuum cleaner body.

In order to avoid such a problem, a groove portion 22 is formed in the handle portion 3. For example, as shown in FIG. 17, the user puts a finger on the groove portion 22 so that the user can surely grasp the handle portion. You can have a part 3. Although it has been described that the user puts his/her finger on the groove 22, the expression that a part of the finger fits into or cuts into the groove 22 is more accurate.

16 and 17, the surface of the handle portion 3 on which the operation portion 17 is arranged is the upper surface, the surface opposite to the upper surface side is the lower surface (or the back surface), and the right side of the handle portion 3 is the right side in FIG. The surface and the left side are called the left side. However, when the user holds the handle portion 3 when performing cleaning, the right side surface described above is the left side and the left side surface is the right side when viewed from the user.

FIG. 18 is a sectional view of the handle portion 3. From the front of the handle portion 3, a dust collecting portion 23, a suction motor 24 for generating a suction air, and a power supply portion 25 mainly for driving the suction motor 24 are arranged. The dust collecting portion 23 is a dust collecting bag made of cloth or paper, and the power supply portion 25 is a rechargeable secondary battery such as a lithium ion battery. The power supply unit 25 may be a non-rechargeable primary battery instead of a secondary battery.

A circuit board is arranged below the operation unit 17. For example, a key press detection pattern is formed on the upper surface side of the circuit board, and a power supply circuit having a regulator, a diode, and the like and its pattern are formed on the back surface side. Are formed. The power supply unit 25, the circuit board, and the suction motor 24 are electrically connected by a lead wire or the like.

In the apparatus of the present embodiment, the portion of the handle portion 3 where the inner dust collecting portion 23 is arranged is the front portion 26, the portion where the suction motor 24 is arranged is the intermediate portion 27, and the power supply portion 25 is arranged. The part is referred to as the rear part 28.

FIG. 19 is a plan view of the handle portion 3. As shown in FIG. 19, the operation portion 17 is formed between the two groove portions 22. In the device of this embodiment, an operation protrusion 21 is formed around the operation unit 17 in order to prevent the user from accidentally pressing the power button 18 when gripping the groove 22. Further, when the user holds the two groove portions 22 with the forefinger and the thumb, respectively, a space is formed between the forefinger and the thumb. Since the operating portion 17 is located exactly in this space, the power button 18 It is possible to avoid erroneous operation of the.

FIG. 20 is a bottom view of the handle portion 3. 20, a power supply groove 30 having a width of 9 mm, a length of 24 mm, and a depth of 4 mm is formed on the bottom surface of the grip portion 3. A power supply hole 31 for inserting a power supply plug 33 of a power supply adapter is formed in a substantially central portion of the power supply groove 30. Further, the power supply groove portion 30 is formed between two groove portions 22 formed on both left and right side surfaces of the handle portion 3. Note that this numerical value is an example, and the numerical value is not limited to this value, and may be another numerical value.

Further, an extension pipe connecting portion 6 is formed at the tip of the handle portion 3, and a strap attaching portion 32 for attaching a strap, a cord or the like is formed at the rear end. Further, an exhaust port 29 for exhausting suction air generated by the suction motor 24 to the outside is formed on one side surface of the handle portion 3.

FIG. 21 is a perspective view of the handle portion 3. FIG. 21 is a diagram particularly for clarifying the positional relationship between the two groove portions 22 and the power supply groove portion 30.

In FIG. 21, the virtual axis A exists in the extending direction (front-back direction) of the handle portion 3. The groove portions 22 formed on the left and right side surfaces of the handle portion 3 have a symmetrical shape with the virtual axis A as a reference.

Further, in FIG. 21, when the circle formed in the cross section of the handle portion 3 is a virtual circle C, the two groove portions 22 and the power source groove portion 30 are formed on the virtual circle C.

22 is a left side view of the handle portion 3 as viewed from the left in FIG.

In FIG. 22, an exhaust port 29 is formed on the side surface (the left side surface in FIG. 19) of the handle portion 3. The exhaust port 29 is formed at this position in order to prevent the exhaust port 29 from facing the user when a right-handed user holds the handle portion 3 for cleaning. When the user holds the handle portion 3 with his right hand for cleaning, the exhaust port 29 faces to the right as seen from the user.

FIG. 23 is a right side view of the handle portion 3 viewed from the right side in FIG.

As shown in FIG. 23, the operating portion 17 is formed on the upper surface of the handle portion 3, the groove portion 22 is formed on the side surface, and the power supply groove portion 30 is formed on the bottom surface. An extension pipe connecting portion 6 is formed at the tip of the handle portion 3.

FIG. 24 shows a side view when the electric vacuum cleaner body is leaned against a wall or the like.

In FIG. 24, when the rear end of the handle portion 3 is attached to the wall and the electric vacuum cleaner body is tilted from the floor surface toward the wall, the power supply groove portion 30 having a shape that is concave from the surface of the handle portion 30. Since the power plug 33 connected to the power cord 34 is inserted into the power cord 34, it is possible to prevent the back surface of the power plug 33 from hitting the wall. In this embodiment, the height of the power plug 33 is 15 mm, the depth of the power groove 30 is 4 mm, the length from the rear end of the grip portion 3 to the power groove 30 is 100 mm, the extension pipe 1 tip portion (suction tool 2 The length from the portion) to the rear end of the handle portion 3, that is, the length of the vacuum cleaner is 910 mm. Note that this numerical value is an example, and the numerical value is not limited to this value, and may be another numerical value.

25 and 26 are perspective views showing a state in which the front portion 26 is removed from the intermediate portion 27.

25 and 26, an inner wall 35 is formed in a portion of the front portion 26 that is connected to the intermediate portion 27, and a plurality of (for example, three) fitting protrusions 36 are formed on the inner wall 35. ing. Moreover, one hole 37 is formed in the inner wall 35.

In this embodiment, the outer wall 38 is formed on the surface opposite to the inner wall 35, and the hole 37 is formed so as to penetrate the inner wall 35 and the outer wall 38. On the other hand, the fitting protrusion 36 is formed only on the inner wall 35.

Further, in this embodiment, three fitting protrusions 36 are formed, but the number of fitting protrusions 36 is not limited to three, and the number of fitting protrusions 36 may be changed.

In addition, in the present embodiment, the hole 37 has a substantially rectangular cross section that widens laterally, but the shape of the cross section is not limited to this, and may be another shape such as a circle or a square.

27 and 28 are perspective views showing the intermediate portion 27 and the rear portion 28 with the front portion 26 removed from the intermediate portion 27.

As shown in FIGS. 27 and 28, a side wall 39 is formed in a portion of the intermediate portion 27 that is connected to the front portion 26, and a plurality of (for example, three) fitting grooves 40 are formed in the side wall 39. ing. The fitting groove 40 has a substantially L shape, and the fitting protrusion 36 of the front portion 26 is fitted therein.

Further, one protrusion 41 is formed on the side wall 39, and the protrusion 41 is urged outwardly of the side wall 39 by an elastic member (for example, a spring, not shown) formed inside the side wall 39. Has been done. The protrusion 41 fits into the hole 37 formed in the front portion 26.

A method of connecting the front portion 26 to the middle portion 27 will be described. First, the fitting protrusion 36 of the front portion 26 is inserted into the fitting groove 40 of the intermediate portion 27. At this time, the protrusion 41 of the intermediate portion 27 is pushed by the inner wall 35 of the front portion 26 and moves to the side wall 39 side against the elastic force of the elastic body.

Next, the fitting protrusion 36 is slid in the circumferential direction of the side wall 39 along the fitting groove 40 extending along the circumference of the side wall 39. That is, the user rotates the front portion 26 clockwise while the front portion 26 is covered with the intermediate portion 27. Then, the fitting protrusion 36 of the front portion 26 comes into contact with the tip end portion of the fitting groove 40 of the intermediate portion 27, and the protrusion 41 of the intermediate portion 27 protrudes from the hole portion 37 formed in the front portion 26, and is fitted. The fitting protrusion 36 fits in the fitting groove 40, and the protrusion 41 fits in the hole 37. In this way, the front part 26 is connected to the middle part 27.

On the other hand, when removing the front portion 26 from the middle portion 27, the user can remove the front portion 26 from the middle portion 27 by pushing in the protrusion 41 and rotating the front portion 26 counterclockwise.

As shown in FIGS. 28 and 29, at the rear end of the rear portion 28, a strap attaching portion 32 for passing a cord or a strap is formed.
(Other Embodiments Possible in This Embodiment)
The embodiment described above is the best mode that can be implemented by those skilled in the art, but it is also possible to implement it as follows.

In the suction tool 2 of the present embodiment, the rotating body 5 is configured to rotate in the rotating body arrangement space 10, but the rotating body 5 and the extension pipe connecting portion 6 are integrally formed, and the rotating body 5 together with the extension pipe connecting portion 6 are integrated. It is also conceivable to have a rotating structure. Alternatively, a configuration may be considered in which the extension pipe connection portion 6 is directly connected to the suction tool body 4 without the intermediary of the rotating body 5.

In the suction tool 2 of the present embodiment, the rotary body 5 is connected to the suction tool main body 4 so that the longitudinal direction of the suction tool 2 is an axis. However, for example, the side surface of the rotary body 5 (the rotary body 5 It is also conceivable that a substantially spherical projecting portion is provided on the suction tool body 4 side) and the projecting portion is loosely fitted into the suction port 9 of the suction tool body 4.

In this embodiment, when the extension pipe connecting portion 6 is rotated in the direction of the arrow C shown in FIG. 8, the extension pipe connecting portion 6 is at an angle of approximately 90 degrees with respect to the suction tool body 4, as shown in FIG. become. The side surface of the extension pipe connecting portion 6 contacts the end portion of the rotating body opening portion 8, and the extension pipe connecting portion 6 rotates in the direction of arrow C in FIG. Although this is regulated, this angle is not limited to 90 degrees and may be set to another angle. The adjustment of the angle can be performed by, for example, changing the position of the end of the rotor opening 8.

Further, in the present embodiment, the extension pipe connection portion 6 is restricted from rotating in the direction of the arrow D by an angle of approximately 140 degrees with respect to the suction tool body 4 (an angle of approximately 40 degrees with respect to the floor surface). The angle is not limited to this, and for example, the extension pipe connection portion 6 may be rotated up to an angle of about 180 degrees with respect to the suction tool body 4, or may be another angle. The adjustment of the angle can be performed by, for example, changing the position of the end of the rotor opening 8.

INDUSTRIAL APPLICABILITY The electric vacuum cleaner of the present invention can be widely used as a domestic electric vacuum cleaner or a commercial electric vacuum cleaner used in an office or a factory.

1 Extension Tube 2 Suction Tool 3 Grip Section 4 Suction Tool Main Body 5 Rotating Body 6 Extension Tube Connection Section 7 Hill Section 8 Rotating Body Opening Section 9 Suction Port 10 Rotating Body Placement Space 11 First Recess 12 Pedestal 13 Second Recess 14 Rotation Body play fitting part 15 Suction tool play fitting part 16 Flow path 17 Operation part 18 Power button 19 Power supply lamp 20 Dust disposal lamp 21 Operation protrusion 22 Groove 23 Dust collection part 24 Suction motor 25 Power supply part 26 Front part 27 Middle part 28 Rear Part 29 Exhaust port 30 Power groove 31 Power hole 32 Strap mounting part 33 Power plug 34 Power cord 35 Inner wall 36 Fitting projection 37 Hole 38 Outer wall 39 Side wall 40 Fitting groove 41 Projection

Claims (3)

A suction tool having an extension tube connection part connectable to the extension tube, a rotating body connected to the extension tube connection part, and a suction tool body,
Behind the suction tool body and above the upper surface of the suction tool body, a rotary body arrangement space in which the rotary body is located is formed,
In the suction tool body, in front of the rotating body placement space, a hill portion that is a portion that is convex above the upper surface of the suction tool body below the rotating body placement space,
The hill portion has a slope whose height gradually increases from the front to the rear,
The suction tool in which the diameter of the rotating body is smaller than the diameter of the hill portion and the diameter of the extension pipe connecting portion is smaller than the diameter of the rotating body in the lateral direction of the suction tool body. The rotating body is rotatable about a first axis, which is an axis extending in the longitudinal direction of the suction tool main body, in the lateral direction of the suction tool main body, and the extension pipe connecting portion is the first axis. The suction device according to claim 1, which is rotatable in a longitudinal direction of the suction device main body about an axis orthogonal to the axis of 1. An electric vacuum cleaner comprising the suction tool according to claim 1.

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