JP3024257B2 - Vacuum cleaner suction and 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 a suction device for a vacuum cleaner having a lip.

[0002]

2. Description of the Related Art A conventional suction device of a vacuum cleaner having a rubber lip is configured as shown in FIG. That is, the suction tool body 10 has a connection pipe 11 connected to an extension pipe of a vacuum cleaner or the like at the rear, and a suction port 12 at the bottom.
And rubber lips 13 and 14 are provided on the front and rear sides. Rubber lips 13 before and after this suction port 12,
14 blocks the flow of air from around the inlet 12,
By increasing the suction pressure, the suction capacity of dust that has entered deep parts such as grooves is improved.

[0003]

The structure of the conventional rubber lip of the suction tool has the following drawbacks.

When moving the suction tool forward and backward,
Dust is pushed back and forth by the front and rear rubber lips, and is left behind. For this reason, some rubber lips are cut off to eliminate dust remaining, but the suction pressure is reduced by that amount, and the ability to suck dust that has penetrated deeply is also reduced.

An object of the present invention is to solve the above-mentioned problems and to provide a suction device for a vacuum cleaner having a good suction capability.

[0006]

Means for Solving the Problems To achieve the above object, the technical solution of the present invention is to solve the problem in front of the suction port.
And a lip made of an elastic material
At least one lip is provided so as to be vertically movable, and the suction tool
When moving the robot forward or backward,
In this configuration , the tip is intermittently moved up and down .

[0007]

The operation of the above technical problem solving means is as follows.

[0008] The suction tool is moved forward or backward
In the meantime, at least one lip may intermittently move up and down
When the lip rises, large dust on the floor
When the dust is absorbed and the lip goes down,
Blocks the flow of air from around and increases the suction pressure
Thus, the dust that has entered the deep part can be sucked .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

As shown in the drawing, the suction tool main body 1 has a connecting pipe 2 connected to an extension pipe of the vacuum cleaner at a rear portion, and a suction port 3 at a bottom surface. Is provided. Reference numeral 6 denotes a rear roller for running the suction tool main body 1, and reference numeral 7 denotes a control wheel that rotates in conjunction with the rear roller 6, and a connecting rod that intermittently moves the rubber lips 4, 5 up and down in accordance with the rotation of the control wheel 7. Eight.

The operation is as follows. A one-way clutch 7-1 is provided on a part of the control wheel 7, and when one end of the connecting rod 8 is engaged with the clutch 7-1, a rubber lip disposed on the other end of the connecting rod 8 is provided. 4 or 5 moves in a seesaw operation about the rotation shaft 9 and moves up and down intermittently. At this time, when the suction tool moves forward, the rear rubber lip 5 is fixed in contact with the floor surface, and the front rubber lip 4 is moved according to the movement of the control wheel 7.
It can move up and down intermittently. When the suction tool main body 1 moves rearward, the control wheel 7 performs the reverse operation.
Is constituted by a clutch 7-1 which operates in the reverse manner.

The upper and lower intermittent movements of the rubber lips 4 and 5 are caused when the front rubber lip 4 moves upward by the rotation of the clutch 7-1 of the control wheel 7 and the floor contact portion of the rear rubber lip 5 moves. When the control wheel 7 rotates in the reverse direction (rearward traveling), the floor contact portion of the front rubber lip 4 becomes the central axis of rotation and the rear rubber lip acts as the central axis of rotation. 5 may intermittently move upward.

[0013]

As is apparent from the above embodiment, according to the present invention, while the suction tool is moved forward or backward,
At least one lip goes up and down intermittently
When the lip rises, large dust on the floor
When dust is sucked in and goes down, the air from around the
The air flow is blocked and the suction pressure in the suction port temporarily
The relatively heavy dust that goes up and goes deep
Things.

[0014] Also, a lip in front of or behind the suction port is interposed.
The suction device moves forward or backward
When the lip is raised while moving,
Suction without releasing the dust of
When it is lowered, the suction capacity of the deep dust is improved
It is.

As described above, according to the present invention, it is possible to provide a suction tool for a vacuum cleaner having a good suction capacity.

[Brief description of the drawings]

FIG. 1 is a sectional view of a suction tool of a vacuum cleaner according to one embodiment of the present invention.

FIG. 2A is a front view of a main part showing a vertically movable configuration of a rubber lip of the suction tool. FIG. 2B is a plan view of the main part.

FIG. 3 is a cross-sectional view of a conventional suction tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction tool main body (suction tool) 3 Suction port 4,5 Rubber lip 6 Rear roller (Roller) 7 Control wheel

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47L 9/06 A47L 9/02

Claims (4)

(57) [Claims] With 1. A provision of the lip of resilient material in the front and rear suction mouth, at least one of the lip
It is provided so as to be able to move up and down, and moves the suction tool forward or backward
During movement, for an electric vacuum cleaner suction tool comprising intermittently to the upper downward the vertically movable lip. 2. The suction tool for a vacuum cleaner according to claim 1 , wherein a lip in front of the suction port is vertically movable . Wherein the rear of the lip of the inlet to vertically movable <br/> was claim 1 or 2 for an electric vacuum cleaner suction tool according. 4. A running roller is provided on the suction tool,
The lip moves up and down in conjunction with the rotation of the roller
For an electric vacuum cleaner suction tool of any one Kouki placement of claims 1 to 3 were.