JP3281664B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upright type vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, this kind of vacuum cleaner has been disclosed in
As shown in JP-A-111251 (A41L9 / 10), when storing in an upright state, that is, when storing in a stand, when a part of a suction part is used as a rotation center and the main body is in a vertical state, The main body stands on the suction part with the bottom as the bottom.

[0003] The relationship between the main body and the suction part when the stand is stored is such that the flat part at the lower part of the main body and the flat part at the upper part of the suction part overlap with each other, and the main body is placed on the suction part with the vacuum cleaner standing up. I can do it.

However, with such a configuration,
If the flat part of the lower part of the body and the flat part of the upper part of the suction part are distorted at the time of molding, when the main body is stored, a part of the lower part of the main body will be concentrated on the uneven part of the upper part of the suction part. In some cases, the suction portion was damaged or a squeak sound was produced.

In order to solve the above-mentioned problems,
If you try to contact the lower surface of the main body and the upper surface of the suction part with the surface,
It was necessary to accurately obtain the precision during molding.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide an easy-to-use vacuum cleaner which is hardly damaged, does not produce squeaky noise, and the like. .

[0007]

SUMMARY OF THE INVENTION The present invention comprises a main body having a built-in electric blower and having a dust collecting chamber, and a suction portion provided below the main body and rotatable with respect to the main body. A projection is formed on the upper surface of the main body and the lower surface of the main body. And a contact surface where the protrusion of the suction portion and the protrusion of the main body contact each other is an inclined surface.

In addition, a main body having a built-in electric blower and having a dust collection chamber, and a suction portion provided below the main body and rotatable with respect to the main body are provided, and the main body and the suction portion are substantially perpendicular to each other. The protrusions that come into contact with each other are formed on the upper surface of the suction portion and the lower surface of the main body, and the protrusions on the suction portion side are formed on ribs in the suction portion.

The rib is a guide wall of a ventilation path formed in the suction portion.

[0010]

According to the structure of the present invention, when the cleaner is in the housed state, the suction section is arranged on the floor surface, and the main body is rotated with respect to the suction section to be substantially vertical. Then, the projections formed on the suction portion and the main body come into contact with each other, and the main body is in a stored state mounted on the suction portion. Since the main body side projection and the suction portion side projection abut on each other with a slope, when the abutment state is established, the load from the main body side projection is distributed to the suction portion.

Further, since the projection on the suction portion side is formed on the guide wall of the ventilation passage formed in the suction portion, the load of the main body when the storage state is established is reduced by the projection on the suction portion side and the guide wall. The load can be distributed by receiving the rib.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to FIGS. 1 to 10 using an upright type vacuum cleaner as an example.

FIG. 1 is an overall side view of an upright type vacuum cleaner, and 1 is an electric vacuum cleaner main body having a built-in electric blower (not shown) and a dust collecting chamber 28 described later. Reference numeral 1 denotes a structure in which dust sucked from below enters a dust collection chamber 28 via a suction hose 2 provided on the side of the main body 1.

Reference numeral 3 denotes a main body cover provided on the main body 1. The main body cover 3 is detachable from the main body 1 so that a paper pack or the like in the dust collecting chamber 28 can be replaced. The accumulated dust can be discarded.

Reference numeral 4 denotes a handle portion provided on the upper portion of the main body 1, and the handle portion 4 is, as shown by a broken line,
, With the handle shaft 5 as a fulcrum.

Reference numeral 6 denotes a grip provided above the handle portion 4. When cleaning, the user holds the grip 6 with his / her hand to operate the entire vacuum cleaner back and forth to perform cleaning.

Reference numeral 7 denotes a dust collecting chamber 28 provided below the main body 1.
The suction unit 7 is provided so as to rotate with respect to the main body 1. When the user performs cleaning, the user holds the grip 6 and tilts the main body 1. Even at this time, the suction section 7 is kept parallel to the floor surface to be cleaned. Reference numeral 8 denotes a central axis that is the center of rotation at that time.

Reference numeral 9 denotes a rotatable wheel provided on the main body 1. The center of rotation of the wheel 9 is provided near the central shaft 8.

Reference numeral 10 denotes a handle provided on the upper portion of the main body 1 for carrying. The handle 10 is mainly used when the handle portion 4 is folded.

Reference numeral 11 denotes a main body-side projection integrally formed on the lower portion of the main body 1 as shown in FIG.

Reference numeral 12 denotes a suction-portion-side protrusion which comes into contact with the main-body-side protrusion 11 when the main body 1 is in the housed state. The suction-portion-side protrusion 12 is integrally formed on the upper portion of the suction portion 7.

The main body-side projection 11 and the suction section-side projection 12 have mutually inclined contact surfaces, and the main body 1 is rotated to be substantially perpendicular to the suction section 7, that is, in the housed state. At this time, the main body side projection 11 and the suction part side projection 12 come into contact with each other, so that the main body 1 is mounted on the suction part 7. At this time, as shown in FIG. 2, when the main-body-side projection 11 comes into contact with the suction-portion-side projection 12, the load on the main body 1 is divided into two component forces 13 and 14, Part 7
Is divided into two component forces 13 and 14 so that a force is applied.

As shown in FIG. 3, reference numeral 15 denotes a suction part upper constituting the suction part 7, and 16 denotes the suction part upper 15
The lower part of the suction part is joined to the lower part of the suction part. Also, 17
This is a rotating brush that scrapes dust from carpets and carpets with rotational force. Reference numeral 18 denotes a brush cover that covers the rotating brush 17, and the brush cover 18 rotates when the rotating brush 17 is clogged with dust or the like.
Can be removed when cleaning the. Also, 19
Is a bumper for preventing the tip of the suction portion 7 from hitting a closet or a wall during cleaning so as not to damage them. Reference numeral 20 denotes a free wheel attached to the tip of the suction section 7.

As shown in FIG. 4, reference numeral 21 denotes a guide wall formed inside the suction section 7 for guiding dust to the suction hose 2. The guide wall 21 is formed on the surface of the suction section 7. It passes through the back side of the suction portion side projection 12.

Next, the structure of the handle portion 4 will be described with reference to FIG.
7 through FIG.

Reference numeral 22 denotes an operation panel provided in the vicinity of the grip 6. The operation panel 22 has a handle portion 4 for sending an operation signal to a control board 23 provided in the main body 1.
A signal transmission code (not shown) is interposed therein.

Reference numeral 5 denotes a handle shaft for connecting the handle portion 4 to the main body 1. When the handle portion 4 is folded, the handle shaft 5 rotates around the shaft.

Numeral 24 is a storage recess formed around the handle shaft 5. The storage recess 24 is a fixed piece 26 urged by the spring 25 when the handle portion 4 is bent downward. Are fitted to hold the handle portion 4 in the housed state.

Reference numeral 27 denotes a cleaning concave portion formed around the handle shaft 5. The cleaning concave portion 24 is fitted with a fixing piece 26 urged by a spring 25 from the main body 1 side. The part 4 is fixed in the vertical direction.

Reference numeral 28 denotes a dust collection chamber formed in the main body 1,
A paper pack for storing dust can be set in the dust collecting chamber 28, and the dust collecting chamber 28 is covered with a clamp 29 provided on the main body cover 3 by being fixed to the main body 1.

Reference numeral 30 denotes a handle shaft cover provided around the handle shaft 5. The handle shaft cover 30 is fitted and fixed to a part of the main body 1.

The engaged state between the main body 1 and the handle portion 4 is such that the handle portion 4 is sandwiched by a part of the main body 1 and is further fixed by a pin 31 so as to be rotatable. A sleeve 32 is provided around the pin 31, and a part of the main body 1 is fastened with the sleeve 32 interposed therebetween. With such a structure, since the force for tightening the handle shaft 5 is applied to the sleeve 32, sufficient fixing can be performed regardless of the force for tightening the handle shaft 5.

A release knob 33 is provided on the upper surface of the main body 1 for releasing the fitting of the fixing piece 26 for fixing the cleaning concave portion 27 and the storage concave portion 24. is there.

Here, in the cleaning state, the fixing piece 26 holds the handle shaft 5 horizontally from the lateral direction of the main body 1.
Of the main body 1 with the grip 6, it is difficult to come off even if the main body 1 is moved up and down. It is hard to come off.

Next, the structure of the suction hose 2 will be described with reference to FIGS.

Numeral 34 denotes a joint pipe rotatably connected to the main body 1. An extendable hose 35 is connected to the joint pipe 34, and a connecting pipe is connected to the other end of the hose 35. 36 is installed. Connection pipe 36
Two L-shaped grooves 37 are formed at opposing locations on the inner side of the groove, and an engagement piece 39 formed on an elbow 38 to be described later engages with the L-shaped groove 37 in a bayonet manner. .

Numeral 38 denotes an elbow connecting the connection pipe 36 and the main body 1, and an engagement piece 39 protruding at an opposite portion is provided at a portion of the elbow 38 connected to the connection pipe 36,
A clamp hook is provided at a portion connected to the main body 1.
A piece 41 urged to the outside of the elbow 38, which is pushed into the elbow 38 by pressing 40, is formed on the body 1
The main body 1 and the elbow 38 are connected and fixed by engaging a notch (not shown) formed in a portion where the elbow 38 is inserted.

FIGS. 9 and 10 show an example in which the suction hose 2 is removed from the main body 1 and a hose 35 is used.

42 is the suction hose 2 from the main body 1
The telescopic hose is attached to the end of the suction hose 2 and a brush 43 is attached to the end of the telescopic hose 42.

The state shown in FIG. 9 is a state in which the connection between the suction hose 2 and the elbow 38 is disconnected and the telescopic hose 42 is directly attached to the connection pipe 36. Such a use condition is effective when cleaning a high place, and the elbow 38 is used.
The telescopic hose 42 is easy to point straight up because it is removed.

The state shown in FIG. 10 is a state in which the telescopic hose 42 is attached to the end of the elbow 38 of the suction hose 2. In this use state, the distal end of the elbow 38 faces downward. The hose 42 is easy to turn downward, and is effective for cleaning low places and small places.

Next, the operation will be described.

When the above-described vacuum cleaner is used, the main body 1 is tilted with the handle portion 4 raised and the grip 6 held, and the suction portion 7 is placed along the floor. And the operation panel
By operating at 22, it is possible to drive in the mode desired by the user.

Next, the case of storage will be described.
The main body 1 is raised vertically from the use state described above with respect to the floor surface. Then, the main body 1 is raised until the main body side projection 11 abuts on the suction part side projection 12, the main body 1 is placed on the suction part 7, and the handle part 4 is folded to be stored. At this time, the suction-portion-side projection 12 and the main-body-side projection 11 abut on an inclined surface, and a guide wall 21 for guiding dust is formed on the back side of the suction-portion-side projection 12 to which the load of the main body 1 is applied. The load can be dispersed by the inclined surface of the suction portion side projection 12 and the guide wall 21, and the suction portion 7 to which the load of the main body 1 is applied is less likely to be damaged.

As described above, since the projections 11 and 12 are formed on the side of the main body 1 and the side of the suction section 7 which come into contact with the inclined surfaces during storage, a squeak sound is produced from the suction section 7 by the load of the main body 1 during storage. The suction part 7 is not damaged.

Further, since the suction portion side projections 12 are formed on the front side of the ribs forming the dust guide wall 21 on the suction portion 7 side, the load of the main body 1 can be dispersed by the guide wall 21. As in the case of the above-described effects, there is no fear of squeaking noise or damage to the suction portion 7.

[0047]

According to the present invention, since a projection is formed on the main body side and the suction portion side to contact with an inclined surface during storage, a squeak sound is generated from the suction portion by the load of the main body during storage, or the suction portion is damaged. There is an effect that there is no such thing.

Further, since the suction portion side projection is formed on the front side of the rib forming the dust guide wall on the suction portion side, even if a load is applied to the main body, the load can be dispersed by the guide wall. It produces effects such as squeaking and no fear of damage.

[Brief description of the drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is a side view of the main part.

FIG. 3 is a side sectional view of the main part.

FIG. 4 is a top view of the main part.

FIG. 5 is a side sectional view showing the connection between the main body and the handle portion.

FIG. 6 is a sectional view showing the handle shaft.

FIG. 7 is a top view in which a part of the handle shaft is cut away.

FIG. 8 is an overall side view in which a part of the suction hose is broken.

FIG. 9 is an overall side view showing an example of the use state.

FIG. 10 is an overall side view showing an example of the usage state.

[Explanation of symbols]

 28 Dust collection chamber 1 Main unit 7 Suction unit 11 Main unit side protrusion 12 Suction unit side protrusion 21 Guide wall

(72) Inventor Hirofumi Mitsue 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kazuhiro Fujii 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric (56) References JP-A-1-32828 (JP, A) JP-A-3-55415 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 5/28 A47L 9/00

Claims (3)

(57) [Claims] 1. A main body having a built-in electric blower and having a dust collecting chamber, and a suction portion provided at a lower portion of the main body and rotatable with respect to the main body , wherein an upper surface of the suction portion and a lower surface of the main body are provided
A protrusion is formed on the upper surface of the suction portion.
Abuts projection on main body when it is almost perpendicular to suction part
To form a position to receive the load of the main body,
The contact surface where the projection of the insertion part and the projection of the main body contact
Vacuum cleaner, characterized in that it was. 2. A main body having a built-in electric blower and having a dust collecting chamber, and a suction portion provided at a lower portion of the main body and rotatable with respect to the main body , wherein the main body and the suction portion are substantially perpendicular to each other. The vacuum cleaner is characterized in that projections that come into contact with each other when they become are formed on the upper surface of the suction part and the lower surface of the main body, and the projections on the suction part side are formed on ribs in the suction part. 3. The vacuum cleaner according to claim 2, wherein the rib is a guide wall of a ventilation path formed in the suction portion.