JP2001128905A - Intake body and vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intake body and a vacuum cleaner capable of achieving a sufficient length of an intake hole without complicating the structure of a molding die. SOLUTION: This intake body 20 has an intake body 21 in which an intake room 25 having an intake opening 23 is formed in the bottom and a rotary cleaning body 26 mounted rotatably in the intake room 25. The intake body 21 has a lower case 30 and an upper case 40 attached to the lower case 30. The rotary cleaning body 26 is rotated with air sucked from an intake hole 55 formed in the intake body 21. The intake hole 55 is formed by the lower case 30 and a bumper 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction port provided with a rotary cleaning member rotatably provided in a suction chamber, and a vacuum cleaner provided with the suction port.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 9 and 10, a rotary cleaning body 3 is rotatably provided in a suction chamber 2 having a suction opening 1 formed on a lower surface, and an intake hole for rotating the rotary cleaning body 3. A suction port body 6 provided with an upper case 4 in an upper case 5 is known.

[0003] When the suction chamber 2 is brought into a negative pressure by the driving of a vacuum cleaner body (not shown), dust is sucked from the suction opening 1 and air is introduced from the air introduction hole 4. Sprays toward the rotary cleaning body 3. As a result, the rotary cleaning body 3 rotates to scrape up dust on the floor surface.

[0004]

By the way, since the intake hole 4 is provided in the upper case 5, the length of the intake hole 4 in the front-rear direction is equal to the thickness of the case 5 and the length thereof is short. Has become. For this reason, the air flow blown from the air intake hole 4 toward the rotary cleaning body 3 cannot be sufficiently rectified, and its direction cannot be sufficiently directed. For this reason, there is a problem that the rotation efficiency of the rotary cleaning body 3 is poor.

In order to solve this problem, it is sufficient that the intake hole 4 is expanded to make the intake hole 4 long enough. However, in order to provide the intake hole 4, a slide structure must be provided in a molding die. Therefore, there arises a problem that the mold structure becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a suction port body capable of taking a sufficient length of a suction hole without complicating a molding die, and a suction port body having the same. An object of the present invention is to provide a vacuum cleaner having a body.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is to provide a suction port main body having a suction chamber having a suction opening on a bottom surface, and a rotatable rotation chamber provided in the suction chamber. Wherein the suction port body has a lower case and an upper case attached to the lower case, and receives the air sucked from an air inlet provided in the suction port body to perform the rotary cleaning. In the suction opening body in which the body rotates, the intake hole is formed by a lower case and an upper case.

According to a second aspect of the present invention, the intake hole is formed at a front side of a suction port body, the upper case is a bumper, and the bumper forms an upper side of the intake hole, and the upper side projects forward. It is characterized by being.

According to a third aspect of the present invention, there is provided an electric vacuum cleaner comprising the suction opening according to the first or second aspect.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a suction port and a vacuum cleaner according to an embodiment of the present invention.

In FIG. 1, reference numeral 10 denotes a vacuum cleaner main body.
Inside the main body 10, a dust collecting chamber 12 and an electric blower 11 for making the dust collecting chamber 12 a negative pressure are provided. Dust chamber 12
Is provided with a dust collection filter 13.

Reference numeral 15 denotes a hose having one end detachably connected to the main body 10 of the vacuum cleaner. The other end of the hose 15 is provided with a hand-operated tube 16, and the hand-operated tube 16 is provided with a handle 17. Have been. The handle portion 17 is provided with a hand operation portion 17A. The hand operation portion 17A has an off switch S1 for turning off the power of the electric blower 11, and a strength switch S2 for setting the power of the electric blower 11 to high or low.
And an automatic setting switch S3 for automatically setting the power of the electric blower 11.

An extension tube 18 is detachably connected to the hand operation tube 16, and a suction port 20 is detachably connected to a distal end of the extension tube 18.

As shown in FIGS. 2 to 5, the suction port body 20 is detachably connected to the suction port main body 21 and the extension pipe 18 and is provided at the rear of the main body 21 so as to be rotatable in the vertical direction. Connection pipe 22 provided. A suction chamber 25 having a suction opening 23 on the bottom surface is formed in the suction port main body 21, and a rotary cleaning body 26 is rotatably provided in the suction chamber 25. The rotary cleaning body 26 includes a plurality of blades 2.
6A.

The suction port main body 21 is sandwiched between the lower case 30, the upper case 40 attached to the lower case 30, and the side portion of the suction port main body 21 between the lower case 30 and the upper case 40. And the air duct 60 sandwiched between the lower case 30 and the upper case 40.
And a rotating pipe 70 rotatably mounted on the outer periphery of the air duct 60, and a cover 71 and the like having a substantially U-shaped cross section fixed to the rotating pipe 70 by screws (not shown). A shaft 22A provided on the left side (in FIG. 7) of the lower end of the connection pipe 22 is pivotally supported on the upper part of the rear part of the rotary pipe 70, and the connection pipe 22 is turned around the shaft 22A in the front-rear direction. It is possible to move.

As shown in FIG. 6, the lower case 30 has a suction opening 23 formed in the bottom surface 31. A partition 32 is formed behind the suction opening 23 along the suction opening 23. . The suction chamber 25 is defined by the lower case 30, the partition 32, the upper case 40, the partition (not shown) formed in the upper case 40, and the bumper 50 (see FIG. 5). The partition of the upper case 40 is in contact with the partition 32 of the lower case 30.

A pair of inclined surfaces 33, 33 extending in the left-right direction are formed on both sides of the front end of the lower case 30, and the inclined surfaces 33, 33 are inclined downward toward the front.
The length of each inclined surface 33 in the front-back direction, that is, the length of the inclined surface is set to be longer than the thickness of the lower case 30. Also,
A hollow cylindrical wall 35 is provided between the inclined surfaces 33.

The bumper 50 has a front guard portion 51 extending in the left-right direction for protecting the front side of the suction port main body 21 and a side extending rearward from both ends of the front guard portion 51 to protect the side portion of the suction port main body 21. Guard portions 52, 52 are provided. The front guard portion 51 is formed in a band shape extending in the left-right direction along the front end of the upper case 40 and inclined downward toward the front, and constitutes a part of the upper case. The front end 51A of the front guard portion 51 projects forward from the front end of the lower case 40, and the lower surface 51B of the front guard portion 51 is inclined downward toward the front.

A leg 53 is formed at the center of the lower surface 51 of the front guard 51, and the leg 53 is
Is joined to the upper surface of the cylindrical wall 35. Further, legs 54, 54 are formed on both sides of the lower surface 51 of the front guard portion 51, and the legs 54, 54 are formed on the front wall 30A of the lower case 30.
It is joined to the upper surface of.

The inclination angle of the lower surface 51B of the front guard portion 51 is set smaller than the inclination angle of the inclined surface 33 of the lower case 30,
The length of the lower surface 51B in the front-rear direction is equal to that of the upper case 40.
Is set to be longer than the wall thickness. In addition, intake holes 55, 55 are formed by the front guard portion 51 of the bumper 50 and the inclined surfaces 33, 33 of the lower case 30. That is,
The upper side of the intake holes 55, 55 is formed by the bumper 50, the lower side of the intake ports 55, 55 is formed by the lower case 30, and the upper side protrudes forward.

Each intake port 55 is inclined downward toward the front and has a length in the front-rear direction sufficiently longer than the thickness of the lower case 30 or the upper case 40. Further, the diameter of the intake holes 55, 55 on the outlet side is smaller than the diameter on the inlet side, so that the intake holes 55 are narrowed. In addition, this intake hole 5
5, 55 are directed to the upper blade 26A of the rotary cleaning body 26.

The air duct 60 has a guide part 61 facing the suction chamber 25 and extending in a trumpet shape in the left-right direction, and a pipe part 62 having a circular cross section at the rear of the guide part 61.
A distal end portion 70A of the rotary pipe 70 is rotatably fitted to the outer periphery of the pipe section 62. Then, the suction chamber 25 and the connection pipe 22 are
And are in communication. In addition, a shutter 75 is interposed between the cover 71 attached to the rotary pipe 70 and the connection pipe 22, and the shutter 75 is connected to the connection pipe 2 as shown in FIG.
When the stand 2 is raised, the gap formed between the rear end of the cover 71 and the front end of the connection pipe 22 is closed.

Also, the connecting pipe 22 is formed straight,
When the connection pipe 22 is turned over as shown in FIG. 8, the shutter 75 enters the cover 71 and the connection pipe 2
The end portion 2 does not block the air path of the rotary tube 70.

Next, the operation of the suction port body and the vacuum cleaner configured as described above will be described.

When the high / low switch S2 or the automatic switch S3 of the hand operation unit 17A is operated, the electric blower 11 is driven to make the dust collecting chamber 12 a negative pressure, and the hose 15, the extension pipe 18, the connection pipe 22, the rotating pipe 70 Then, the suction chamber 25 has a negative pressure through the air duct 60. Due to this negative pressure, dust is sucked together with the outside air from the suction opening 23 of the suction port main body 21, and the dust and the outside air pass through the suction chamber 25, the air passage pipe 60, the rotating pipe 70, the connection pipe 22, the extension pipe 18, and the like. The dust is sucked into the dust collection chamber 12 of the main body 10 through the dust collector, and the dust is collected by the dust collection filter 13.

On the other hand, the negative pressure in the suction chamber 25 causes
The outside air is taken in from 5, 55, and this outside air blows to the upper blade 26A of the rotary cleaning body 26. Thereby, the rotary cleaning body 26 rotates in the direction of the arrow and scrapes up dust on the floor surface.

The intake holes 55 are directed downward, and the front end 5 of the bumper 50 at the upper portion of the intake holes 55
1A protrudes forward from the lower case 40, and the front end 51A is brought into contact with the wall so that the intake hole 5A is formed.
The dust on the floor beside the wall can be efficiently sucked together with the air that the 5,55 intakes. Further, since the front end 51A of the bumper 50 projects forward from the lower case 40, it is possible to prevent the wall and other furniture from being damaged.

By the way, the intake holes 55, 55
0 and the bumper 50, the intake holes 55, 55 can have a sufficient length in the front-rear direction, and the length is sufficiently longer than the thickness of the upper case 40 and the lower case 30. Therefore, the air blown to the blade 26A of the rotary cleaning body 26 can be sufficiently rectified and directed. For this reason, the rotary cleaning body 26 rotates efficiently.

Further, since the air intake ports 55, 55 are formed by the lower case 30 and the bumper 50, even if they have a sufficient length in the front-rear direction, the molding die does not have a slide structure. The suction ports 55, 55 can be formed, and the structure of the molding die becomes simple.

In the above embodiment, the intake ports 55, 55 are formed by the lower case 30 and the bumper 50.
And the upper case 40. In addition, intake port 5
5,55 need not be downward.

[0031]

As described above, according to the first aspect of the present invention, a suction port body having a suction chamber having a suction opening on the bottom surface, and a rotary cleaning member rotatably provided in the suction chamber. Wherein the suction port main body has a lower case and an upper case attached to the lower case, and the rotary cleaning body rotates by receiving air sucked from an air inlet provided in the suction port main body. In the suction opening body, since the suction hole is formed by the lower case and the upper case, the length of the suction hole in the front-rear direction can be sufficiently set, and therefore, the air blown to the rotary cleaning member can be sufficiently reduced. To the direction. For this reason, the rotating cleaning body can be efficiently rotated. In addition, since the intake hole is formed by the lower case and the upper case, the intake hole can be formed without providing a sliding structure in the molding die, and the structure of the molding die is simple. Become.

According to the second aspect of the present invention, the intake hole is formed on the front side of the suction port body, the upper case is a bumper, and the bumper forms the upper side of the intake hole, and the upper side protrudes forward. Therefore, by bringing the upper side into contact with the wall, the air sucked by the air intake hole and the dust on the floor near the wall can be efficiently sucked. Further, since the upper side of the intake hole is a bumper and the upper side is protruding, it is possible to prevent the wall and other furniture from being damaged.

According to the third aspect of the present invention, it is possible to provide a vacuum cleaner having the effects of the first and second aspects.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a vacuum cleaner according to the present invention.

FIG. 2 is a plan view showing a suction port body according to the present invention.

FIG. 3 is a front view of the suction port shown in FIG. 2;

FIG. 4 is a side view of the suction port body of FIG. 2;

FIG. 5 is a longitudinal sectional view showing a configuration of the suction port body of FIG. 4;

FIG. 6 is a plan view showing a lower case of the suction port body.

FIG. 7 is a cross-sectional view showing a state where the connection pipe is erected.

FIG. 8 is a cross-sectional view showing a state where the connection pipe is laid down.

FIG. 9 is a plan view showing a conventional suction port body.

FIG. 10 is a cross-sectional view showing a configuration of a conventional suction port body.

[Explanation of symbols]

 Reference Signs List 20 suction port body 21 suction port main body 23 suction opening 25 suction chamber 26 rotating cleaning body 30 lower case 40 upper case 50 bumper (upper case) 55 suction port

Claims (3)

[Claims] 1. A suction port body having a suction chamber having a suction opening on a bottom surface, and a rotary cleaning member rotatably provided in the suction chamber, wherein the suction port body is provided in a lower case and the lower case. An intake case in which the rotary cleaning body is rotated by receiving air sucked from an intake hole provided in the intake main body, the upper case being provided with the lower case and the upper case. An inlet body characterized by being formed. 2. The intake port is formed at a front side of a suction port body, the upper case is a bumper, and the bumper forms an upper side of the intake port, and the upper side protrudes forward. The inlet body according to claim 1, wherein 3. An electric vacuum cleaner comprising the suction port according to claim 1.