JPH04343821A - Suction tool of vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide a vacuum cleaner suction tool which when in use pushes dust away by means of rubber lips so as not to leave dust unremoved. CONSTITUTION:Rubber lips 4,5 can be intermittently moved in the vertical direction via a control wheel 7 in association with rotation of a traveling roller 6 disposed in a suction tool 1, and when the rubber lip 4 or 5 is raised dust which has been pushed away by the rubber lip 4 or 5 is sucked.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction tool for a vacuum cleaner equipped with a lip.

0002

2. Description of the Related Art A conventional vacuum cleaner suction device having a rubber lip was constructed as shown in FIG. That is, the suction device main body 10 had a connection pipe 11 connected to an extension pipe of a vacuum cleaner at the rear, a suction port 12 at the bottom, and rubber lips 13, 14 at the front and rear thereof. Rubber lips 13, 1 before and after this suction port 12
No. 4 prevents the flow of air from around the suction port 12 and increases the suction pressure to improve the ability to suck in dust that has entered deep areas such as grooves.

0003

SUMMARY OF THE INVENTION The structure of the rubber lip of such a conventional suction tool has the following drawbacks.

[0004] When moving the suction device forward and backward,
The front and rear rubber lips push dust back and forth, leaving it behind. For this reason, some rubber lips are partially cut out to eliminate any unsuction of dust, but this reduces the suction pressure and the ability to suck in dust that has penetrated deep.

An object of the present invention is to solve the above-mentioned problems and provide a suction tool for a vacuum cleaner with good suction ability.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the technical problem solving means of the present invention is such that the front and rear rubber lips of the suction port are intermittently moved in accordance with the forward and rearward movement of the suction tool, respectively. It is constructed so that it can be moved up and down.

[0007]

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

When moving the suction device forward, the rear rubber lip is fixed in contact with the floor surface, and the front rubber lip moves up and down intermittently as it moves, so when the rubber lip is raised, the rubber lip It sucks up the dust that was being pushed away, and when the rubber lip goes down, it blocks the flow of air from around the suction port, increasing the suction pressure.

[0009]

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

As shown in the figure, the suction device main body 1 has a connecting pipe 2 connected to an extension pipe of a vacuum cleaner at the rear, a suction port 3 at the bottom, and rubber lips 4, 5 at the front and rear thereof. has been established. 6 is a rear roller for running the suction tool main body 1; 7 is a control wheel that rotates in conjunction with the rear roller 6; and a connecting rod that intermittently moves the rubber lips 4 and 5 up and down in accordance with the rotation of the control wheel 7. It has 8.

The operation is performed by installing a one-way clutch 7-1 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 activated. 4 or 5 moves up and down intermittently by seesawing around the rotating shaft 9. 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 by the control wheel 7.
It moves up and down intermittently. Furthermore, when the suction tool main body 1 moves backward, the control wheels 7
The clutch 7-1 is configured to operate in the opposite direction.

Incidentally, the intermittent vertical movement of the rubber lips 4 and 5 is such that when the front rubber lip 4 moves upward due to the engagement of the rotating clutch 7-1 of the control wheel 7, the rear rubber lip 5 moves upwardly.
The floor contact part of the front rubber lip 4 serves as the central axis of rotation, causing intermittent seesaw movement, and when the control wheel 7 is rotating in the opposite direction (running backwards), the floor contact part of the front rubber lip 4 serves as the central axis of rotation. Therefore, the rear rubber lip 5 may be moved upward intermittently.

[0013]

As is clear from the above embodiments, according to the present invention, when the suction device moves forward, the rear rubber lip is fixed in contact with the floor surface, and the front rubber lip responds to the movement. It moves up and down intermittently.

[0014] Therefore, when the rubber lip is raised, the dust is absorbed and the rubber lip pushes the dust away, so that no dust is left behind. When the rubber lip is lowered, the flow of air from around the suction port is blocked, and the dust is trapped deep inside. Dust suction ability is improved. Furthermore, when the suction tool is moved backward, the same effect can be obtained by performing the opposite operation.

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

[Brief explanation of drawings]

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

[Fig. 2] (a) is a front view of the main part showing the vertically movable configuration of the rubber lip of the suction tool; (b) is a plan view of the main part;

[Figure 3] Cross-sectional view of a conventional suction device

[Explanation of symbols]

1 Suction tool body (suction tool) 3 Suction ports 4, 5 Rubber lip 6 Rear roller (roller) 7
control wheel

Claims (3)

[Claims] 1. A suction tool for a vacuum cleaner, in which rubber lips are provided at the front and rear of a suction port, and the front rubber lip is intermittently movable up and down as the suction tool moves forward. Claim 2: The front and rear rubber lips of the suction device are such that when the suction device moves forward, the rear rubber lip is fixed in contact with the floor surface, and the front rubber lip moves up and down intermittently as it moves. 2. The suction tool for a vacuum cleaner according to claim 1, which is movable and performs the opposite operation when the suction tool moves rearward. 3. The vacuum cleaner suction tool according to claim 1, wherein the rubber lip is intermittently moved up and down via a control wheel in conjunction with the rotation of a traveling roller disposed on the suction tool.