JPH044688Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a floor nozzle for a vacuum cleaner used in general households.

BACKGROUND ART Conventionally, this type of seed bed nozzle generally had a configuration as shown in Japanese Patent Publication No. 59-52548. The configuration will be explained below with reference to the drawings.

In FIG. 8, a lever 1 provided within the nozzle body holds a brush body 2 and can move it up and down. 3 is a suction port that uses suction to suck in dust on the carpet or floor. Further, as shown in FIG. 9, a dust collecting section 4 communicating with the ventilation passage is formed at the center of the rear interior of the suction port 3, and a rotor 5 and a scraping plate 6 are arranged inside the dust collecting section 4. In addition, the rotor 5 and the scraping plate 6 are each provided with brushes 7 and 7' that are inclined inward, and furthermore, the communication between the dust collecting section 4 and the ventilation path is interrupted by a shield linked to the lever 1. A floor nozzle that opens and closes with a closing plate 8 has also been recently considered.

Problems to be Solved by the Invention In the floor nozzle of such a conventional electric vacuum cleaner, the former one shown in FIG. As a result, fibrous dust such as lint on the carpet could not be sufficiently captured by suction alone, and a large amount of dust remained on the carpet, resulting in insufficient performance. There was also the problem that dust remained attached to the brush body, making it very unsanitary.

The latter shown in Fig. 9 has been improved to have the ability to sufficiently catch lint on the carpet, but since it is additionally equipped with a rotor 5 and a scraping plate 6, it is difficult to assemble the parts. Not only was it difficult and required many man-hours to assemble, but it was also prone to mistakes, and there was no hope of commercializing it.

This invention solves these problems,
To provide a floor nozzle for a vacuum cleaner that easily traps dust such as thread dust and is easy to assemble.

Means for Solving the Problems In order to solve the above problems, the present invention provides a collection case that communicates with the air passage communicating between the suction port and the suction joint and is spaced apart from the suction port. An opening that communicates with the ventilation path is provided in the upper part of the collection case, and a shielding plate that opens and closes the opening is rotatably provided on the collection case. It has a lint collector inside.

Function The present invention has the above-mentioned configuration, and has the ability to sufficiently capture lint on the carpet, and also blocks the flow to the collection case on the floor and tatami surface, so it is able to collect dust, etc. on the floor and tatami surface. The floor nozzle that easily sucks in heavy dust makes it easy to create an air-tight structure.
Assembly is easy because the blocking plate, scraping plate, etc. are integrated into a unit based on the collection case.

Embodiments Hereinafter, embodiments will be described with reference to the drawings.

In FIGS. 1 to 7, reference numeral 11 denotes a floor nozzle body constructed by connecting an upper nozzle member 12 and a lower nozzle member 13 via a bumper 14, and the rear central part thereof is formed into a circular shape and connected to a suction joint. It is rotatably connected to a substantially cylindrical portion 16 of 15. 17 is a pair of rollers disposed below the suction joint 15. Further, the lower nozzle member 13 of the floor nozzle body 11 has a dust suction section 20 consisting of a suction port 18 and a suction groove 19 extending left and right from the suction port and having an open outer end, and a dust suction section 20 that extends parallel to the dust suction section 20 in front and rear. A slit-like opening 21 located at is formed.

Inside the floor nozzle body 11, there is a pair of brush bodies 22 and a brush adjustment body 23 that moves the brush bodies up and down.
is provided. The brush body 22 has a structure in which brushes 25 are installed in a bundle on a brush holder 24, and guide holes 26 are formed at both ends of each brush holder 24, and bosses 27 are provided that protrude from the upper nozzle member 12.
It is held so that it can move up and down by fitting into it. The brush 25 moves downward through the slit-shaped opening 21 and retracts from the floor nozzle body 11 as it moves up and down.

Reference numeral 28 denotes a lever of the brush adjustment body 23, which faces outward from a window hole 29 (not shown) of the upper nozzle member 12. Further, a collection case 30 is provided between the suction port 18 and the roller 17, and the collection case 30 is spaced apart from the suction port 18.
1 and a scraping plate 32, and are equipped with raised brushes 33 and 34 oriented in the same direction, respectively.
The rotor 31 is provided with a rubber piece 35 for preventing rotation. The scraping plate 32 is attached to the rotor 3 by a spring or the like.
It is biased to 1.

A partition wall 3 that forms a ventilation path 36 between the suction port 18 and the suction joint 15 and the upper nozzle member 12.
7 is provided. Further, a shielding plate 38 is provided above the collection case 30. The opening 39 provided in the collection case 30 is opened and closed by rotating the shielding plate 38 about the rotation shaft 40. The opening 39 is opened depending on the position of the lever 28 by a cam 41 provided integrally with the lever 28, a cam plate 42 provided integrally with the rotating shaft 40 of the blocking plate 38, and a spring 43 biasing the blocking plate 38 in the direction of opening. The collection case 30 is configured to be opened and closed, and the collection case 30 is opened by opening the opening 39 only when the lever 28 is slid toward the centermost side of the main body.
is arranged so as to communicate with the ventilation path 36.

Further, one end 44 of the rotating shaft 40 of the shielding plate 38 is held by a holding hole 45 provided in the collection case 30, and the other end is prevented from easily coming off from the collection case 30 by a bent portion 46 at the end of the spring 43. It is maintained as such.

To explain the operation in the above configuration, the protrusion of the brush 25 of the brush body 22 is adjusted according to the condition of the surface to be cleaned. When it is desired to obtain a strong suction force on the surface to be cleaned, such as, the suction force is set to a medium level, and when a weak suction force is to be obtained, the force is set to the maximum level. Brush 25 like this
Adjustment of the protrusion is made by the brush adjustment body 2 via the lever 28.
This is done by sliding the brush body 22 from side to side and moving the brush body 22 up and down along its cam groove (not shown). Dust from the floor or tatami surface is removed from the suction port 1.
8 and the suction groove 19 extending left and right from this into the floor nozzle body 11, and then the suction joint 1
5 and flows into the vacuum cleaner body.

By the way, when cleaning the carpet, keep the lever 28 in the most central position (that is, the brush 25 is in the uppermost position). At this time, the opening 39 is opened by the shielding plate 38, and the collection case 30 and the ventilation path 36 are communicated with each other.
It is forcefully sucked inside.

A situation in which thread waste is captured in the collection case 30 will be explained.

When the floor nozzle main body 11 is pulled, the rubber piece 35 of the rotor 31 engages with the carpet and rotates forward, exposing the raised brush 33 and catching lint as shown in FIG. After that, when pressing the main body 11,
The rotor 31 rotates backward, and the brush 33
faces the three raised brushes of the scraping plate 32. Furthermore, when the floor nozzle body 11 is pulled, the rotor 3
1 rotates forward and the raised brush 33 is exposed,
When rotating, thread waste is scraped off by the raised brush 34,
No lint remains on the exposed brushed brush 33, and the dust can be collected in a fresh state, giving a clean feeling.

The thread scraps scraped off by the raised brush 34 are strongly sucked into the ventilation path 36 by the suction force, and a large amount of dust does not stay in the collection case 30.

When assembled, the rotor 31 is placed inside the collection case 30.
Since a scraping plate 32 and the like are installed inside, and an opening 39 and a shielding plate 38 are held on the upper surface of the collection case 30,
Easy to assemble. In addition, parts where dimensions are important for correct dust collection operation can be made into units, making the design more efficient and making it easier to achieve reliable air tightness.

Note that when the airflow flows from the collection case 30, the amount of dust flowing from the suction port 18 decreases;
The amount of leakage at 0 is not necessary to the extent that it affects the dust collection performance, and by installing the collection case 30, the collection performance of lint is improved, and the overall operation is good even on the carpet, floor, or tatami. It becomes very easy to use.

Effects of the Invention As explained above, the floor nozzle of the vacuum cleaner of the present invention is provided with a collection case that communicates with the ventilation path and is spaced apart from the suction port, and between the upper part of the collection case and the ventilation path. In this case, an opening is provided and a shielding plate for opening and closing the opening is rotatably provided on the collection case, and a dust collector consisting of a rotor and a scraping plate is installed inside the collection case. The shielding plate that opens and closes the opening can be switched according to the condition of the floor,
It has the ability to sufficiently capture lint on the carpet, and on the floor or tatami surface it blocks the flow to the collection case, making it easier to suck in heavy dust such as sand on the floor or tatami surface. The suction structure is easy to design and easy to assemble.
Furthermore, since the nozzle is opened and closed by rotating the shielding plate, a reliable floor nozzle with reliable opening and closing operations can be provided, and clean surface dust collection performance can be ensured.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of a floor nozzle showing an embodiment of the present invention, Fig. 2 is a plan view of the collection case portion, Fig. 3 is a sectional view taken along line A-A in Fig. B- in the diagram
B sectional view, Figure 5 is a CC sectional view of Figure 2 showing the state in which the rotor has rotated forward, Figure 6 is a sectional view taken along line D-D in Figure 2, and Figure 7 is the same. A top view of the floor nozzle with the upper nozzle member removed; FIG. 8 is a vertical cross-sectional view of the floor nozzle showing a conventional example; and FIG. 9 is a vertical cross-sectional view of the floor nozzle showing a second conventional example. . 15... Suction joint, 18... Suction port, 30...
Collection case, 31... rotor, 32... scraping plate, 36... ventilation path, 38... blocking plate, 39...
Opening.

Claims (1)

[Scope of utility model registration request] A floor nozzle with a joint for connection to the vacuum cleaner side is provided with a suction port and a downwardly open collection case located isolated from the suction port at the bottom of the main body, and an opening is provided in the upper wall thereof. The inside of the collection case is communicated with the joint together with the suction port, and the collection case further includes a rotor that has a raised brush on its circumferential surface and that rotates in reverse in conjunction with the forward and backward movement of the floor nozzle body, and this rotor. A raised brush is located at the lower part of one side of the collection case, facing the circumferential surface of the rotor, and scrapes off dust such as thread waste captured by the raised brush of the rotor in conjunction with the reverse rotation of the rotor. A floor nozzle for a vacuum cleaner that has a scraping plate and a shielding plate for opening and closing an opening to form a unitized dust collection section.