JPH03218720A - Floor nozzle for vacuum cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a floor nozzle for a vacuum cleaner used in general households.

2. Description of the Related Art Conventional vacuum cleaners, such as Abrite type vacuum cleaners, have a dust collection section below the main body of the vacuum cleaner, and an electric air blower above the vacuum cleaner body. ! The floor nozzle was connected to the lower intake port of the dust collecting section.

When the dust-containing air sucked through the floor nozzle passes through a dust collection section of the vacuum cleaner body, only the dust is filtered through the furnace, and then exhausted to the outside via an electric blower.

Problems to be Solved by the Invention In the above-mentioned conventional configuration, when the vacuum cleaner body is stored upright with the floor nozzle facing down, the dust collected in the dust collection section falls onto the floor nozzle. Sometimes it spilled onto the floor. Generally, a check valve is installed at the intake port of the dust collection unit to prevent the collected dust from flowing backwards, but since the place where the check valve is located is a passage for dust. In some cases, the check valve did not close, making it impossible to prevent dust from flowing onto the floor.

The present invention solves these conventional problems and prevents dust from spilling out from the floor nozzle.

Means for Solving the Problems In order to achieve the above object, the present invention provides a nozzle body having a front K suction part and forming a suction passage toward the rear of the suction part, and a nozzle body provided internally in the suction part. with the agitator
A connecting pipe is provided at the rear end of the suction passage and connected to the suction side of the cleaner body, and a concave portion projecting clearly downward is formed in the bottom wall midway through the suction passage.

Operation According to the configuration of the present invention described above, the dust sucked into the suction section of the nozzle body via the agitator flows through the suction passage and the connecting pipe to reach the cleaner body. Also, if dust spills out from the vacuum cleaner body when you are not cleaning,
This is collected in a recess formed in the bottom wall midway through the suction passage of the nozzle body.

The dust in the recess is sucked into the vacuum cleaner body during the next cleaning operation.

Example An embodiment thereof will be described below with reference to FIGS. 1 and 2.

The figure shows what was carried out on an ab-light type vacuum cleaner.
That is, the vacuum cleaner main body 2 having the handle 11l on the upper side
has an electric blower inside the upper part, and a dust collecting section is provided below on the suction side of the electric blower.

The floor nozzle 3 is connected to the lower end of the vacuum cleaner main body 2, and its structure will be described in detail below.

Nozzle body 4 is on top. The lower body member 6.6 is connected to the foot, and a suction portion 8 having an agitator 7 connected to a drive source such as a motor is provided at the front of the inside thereof. This suction portion 8 is opened in the lower body member 6 to form a suction port 9. Reference numerals 10 and 11 denote front and rear rollers for keeping the distance between the surface to be cleaned and the suction port 9 at a predetermined value.

Inside the nozzle body 4, a suction passage 12 is formed rearward as a starting end of the suction portion 8'1k. The terminal end of this suction passage 12 is set in a substantially arc shape. Reference numeral 13 indicates a connecting pipe that connects the end of the suction passage 12 and the lower end suction port of the cleaner body 2, and includes a first pipe 14 and a second pipe 16 rotatably connected to the first pipe 14. Become.

One end of the first pipe 14 is formed in a substantially arc shape and is connected to a substantially arc-shaped portion at the terminal end of the suction passage 12 so as to be movable up and down, that is, to be freely downwardly movable.

A recess 16 is formed in the bottom wall of the suction passage 12 of the nozzle body 4 by smoothly protruding downward.

The bottom wall 12& of the rear end of the suction passage 12 also has the above-mentioned substantially arcuate shape and projects smoothly downward. The recess 16 and the rear end bottom wall 12a are located at the target. Rear roller 1Q,
It is located slightly above the ground contact point of No. 11.

In the above configuration, dust sucked into the suction part 8 of the nozzle body 4 due to the scraping action of the agitator 7, etc.
Next, the suction passage 12, the first pipe 14, and the second pipe 16
The dust flows in this order, and then reaches the dust collection section of the cleaner body 2.

By the way, if the surface to be cleaned is a carpet, roller 1o,
11 is buried in the carpet hair, but due to the arcuate shape of the recess 16 and the rear end bottom wall 121L, these exert a so-called warp effect, and as a result, the floor nozzle ~
3 can be made to move well.

Next, if the vacuum cleaner is stored upright while not being used for cleaning, even if dust spills into the floor nozzle 3 from the dust collection part of the vacuum cleaner body 2, it will not be absorbed into the recess 16 and the back. End bottom wall 12! It is received by L and collected, and does not come out from the suction port 9.

When the vacuum cleaner is used again, the dust accumulated in the recess 16 and the like is sucked into the dust collection section of the vacuum cleaner main body 2.

Note that the recess 16 alone exhibits the above effect.
It goes without saying now.

Effects of the Invention As described above, in the present invention, the bottom wall of the suction passage in the nozzle body smoothly protrudes downward to form a concave portion. Even if dust spills out, it is caught by the concave portion of the floor nozzle and does not leak to the outside, so that the environment of the residence can be maintained in a good condition.

Further, the recessed portion also functions as a sled when the floor nozzle is moved, and particularly when the surface to be cleaned is a carpet, the movability is improved and the usability can be greatly improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a floor nozzle showing an embodiment of the present invention;
The figure is an overall perspective view showing an example adopted in an abrite type vacuum cleaner. 2... Vacuum cleaner body, 4... Nozzle body, 7... Agitator, 8... Suction part,
12...Suction passage, 13...Connection pipe, 16...Recess.

Claims (1)

[Claims] A nozzle body that has a suction part in the front and a suction passage facing backward from the suction part, an agitator installed inside the suction part, and an agitator installed at the rear end of the suction passage on the suction side of the vacuum cleaner body. A floor nozzle for a vacuum cleaner, comprising a connecting pipe connected to the suction passage, and a bottom wall of the suction passage having a recess that smoothly projects downward.