JPS5873328A - Electric 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] Conventional vacuum cleaners have a suction port on the back cover of the suction device, but there are back cover parts on both sides of the suction port, which do not have a dust collection function. When cleaning a room, etc., this has been a factor in the failure of the dust removal function for corners, the so-called edge clean function.

The present invention solves the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a vacuum cleaner body constituting a suction device, which is equipped with an electric blower 2, a rotating brush 4 that sweeps dust from the floor into a suction port 3, and a dust box 5 that collects dust. There is.

The vacuum cleaner main body 1 is composed of an upper main body 6 and a lower main body 7,
A handle 8 for operating the main body is pivotably mounted on the back surface of the main body.

The dust box 5 has a dust collecting filter 9 therein, is located between the electric blower 2 and the rotating brush 4, and is detachably attached to the main body 1.

Said rotating brush 4F! Rotation is transmitted by a belt 12 installed between a pulley 10 of an electric blower 2 serving as a driving source and a pulley 11 installed at one end of the rotating brush 4, and the brush 4 rotates around a shaft 13. A check valve 14 is provided at the communication port from the suction port 3 to the dust box 5 to prevent backflow of dust.

A recess 16 is provided on both sides of the suction port 3 provided on the lower surface of the lower body 7, so-called back cover, and a recess 16 is provided at the front side of the center of the suction port 3 from the end of the suction port to the outer end of the suction device. Two protrusions 17 are provided on the front opening facing toward the front, and the height of the apex is about the same as the bottom surface of the camera back. A similar protrusion 1 opens backwards towards the end.
8 is set 31, -5. The number of the protrusions is not limited to the embodiment and may be any appropriate number.

Therefore, when the suction tool moves forward, the front-opening protrusion 17
Accordingly, when the suction tool moves backward, the rear opening protrusion 18
As a result, dust on both sides of the suction port is also guided into the suction port 3. This induction effect is provided by the pressure of the air flow flowing into the suction port along the protrusions, in addition to the physical pressure exerted on the dust by the protrusions 17 and 1B as the suction tool moves forward and backward. .

To explain using FIGS. 6 and 7, when the suction tool moves forward and reaches position D, the dust that was at position A moves from C to E due to the pressure of the protrusion 17. It is carried to E by the air current. Furthermore, when the dust at position B reaches position C due to the advance of the suction tool, the airflow from C toward E will similarly carry it along the protrusion 17 to E. In the case of backward movement, a similar suction effect occurs as shown in FIG.

As described above, according to the configuration of the present invention, the dust removal function is performed not only at the opening of the suction port but also over the entire width of the suction tool using both physical pressure and airflow pressure. This effectively utilizes and improves the edge clean function. In addition, since air is taken in from both ends of the suction tool through between the ribs, the pressure distribution within the suction port becomes uniform, allowing for effective cleaning. It should be noted that the present invention provides similar effects in a suction tool that does not use a rotating brush.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a vacuum cleaner showing an embodiment of the present invention;
Fig. 2 is a sectional view of the vacuum cleaner body, Figs. 3 and 4 are a plan view and side view of the suction port, Fig. 6 is a rear perspective view of the suction port, and Figs. 6 and 7 are FIG. 3 is a partial plan view of a suction port portion for explaining movement of dust. 3,,,,,,Suction port,7,,,,,,Back cover (lower body), 1ryo10618. Front opening protrusion, 18...
,, Protrusion that opens at the back. Name of agent: Patent attorney Toshio Nakao and one other person @l
tl 5!1 σ 17 Figure 6 Figure 7

Claims (1)

[Claims] On both sides of the suction port provided on the back cover of the suction device, several protrusions are provided in front of the center of the suction port to open in front from the end of the suction port toward the outer end of the suction device. A vacuum cleaner in which several protrusions are provided on the rear side of the center of the suction port, opening from the end of the suction port toward the outer end of the suction device.