JPH02209112A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To efficiently clean a place, for which it is difficult to execute cleaning, without using an attachment by constituting a bending part of two straight lines, which are projected outside, when the opening part of a sucking port is observed from the side surface of a cleaner. CONSTITUTION:A main body 1 of a cleaner is equipped with a motor-driven air blower 2, switch 3 and battery 4, etc., backward and a dust collecting box 5 houses a filter 6 freely attachably and detachably in an internal part. Then, a sucking port 7 to be opened forward is formed in a tip and mounted to the main body 1 freely attachably and detachably. When the end face of the opening part in the sucking port 7 is observed from the side surface of the cleaner, the opening part is formed almost on an inclined surface from the tip to the back lower direction and the bending part is composed of two straight lines 7-2 and 7-2 to be projected to the outside. Accordingly, when the back linear part 7-2 is brought into contact with a floor surface, the front linear part 7-1 floats up and dust is sucked in by this floating part.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the structure of the suction port of a small vacuum cleaner.

BACKGROUND OF THE INVENTION An example of a conventional small-sized vacuum cleaner will be described with reference to FIGS. 7 to 9.

21 is an electric blower 22. Switch 23. The main body includes a battery 24 and the like, and 25 is a dust collection box that is open at the tip, has a suction port 26 that projects inward, and has a filter 27 removably attached therein. Further, the opening end surface of the suction port 26 is on an inclined surface extending rearward and downward from the tip when viewed from the side of the vacuum cleaner.

Problems that the invention aims to solve The conventional configuration described above has the following drawbacks.

(1) As shown in Fig. 7, the tip of the suction port 26 is normally used in a floating position, but since there is suction from both sides,
When cleaning a corner at the tip of the suction port 26, the intensive suction from the front is weak, and especially with a rechargeable vacuum cleaner whose suction power decreases with time of use, dust is likely to be left behind.

(II) As shown in FIG. 8, when it is difficult to operate a vacuum cleaner in a narrow space such as inside a car, the vacuum cleaner must be used in a hurry. At this time, the opening surface of the suction port 26 is separated from the surface to be cleaned, so that dust cannot be sucked in.

(2) Also, when cleaning a place with a step and a small depth as shown in Fig. 9, the rear of the opening surface of the suction port 26 is off the cleaning surface and leakage occurs from there, so cleaning cannot be done efficiently. I can't.

The present invention solves the above-mentioned conventional problems, and is a compact and easy-to-use product that can efficiently clean corners, narrow and difficult-to-clean places, or places with little depth due to steps, without using an attachment. The purpose is to provide vacuum cleaners.

Means for Solving the Problems In order to achieve the above object, in the vacuum cleaner of the present invention, the opening of the suction port is composed of two straight lines whose bent portions are convex outward when viewed from the side of the vacuum cleaner. This is what I did. or,
A shielding plate has been installed to cover the opening of the suction port, which is located in the rear straight section, so that it can be opened and closed.

Operation According to the above means, when the suction port corresponding to the rear straight part is brought into close contact with the floor surface or by closing it with a shielding plate, only the suction port corresponding to the straight part on the tip side of the vacuum cleaner opens,
When cleaning corners, concentrated suction from the front allows effective cleaning, and the vacuum cleaner can be used in an upright position even in narrow and difficult-to-clean areas, or in places with little depth due to steps.

EXAMPLES Below, examples will be described with reference to the drawings. 1st
In Figure 2, 1 is an electric blower 2 at the rear. Switch 3. The main body 6, which includes a battery 4 and the like, removably stores a filter 6 therein, and is a dust collection box having a front opening suction lower at its tip, and is removably attached to the main body 1.

In addition, the opening end face of the suction lower, when viewed from the side of the vacuum cleaner, is composed of two straight lines 7-1 and 7-2, with a reed extending upwardly from the tip toward the rear and downward, and a bent part convex outward. . Therefore,
In FIG. 2, when the rear straight section 7-2 touches the floor surface, the front straight section 71 lifts up and collects dust.

In the embodiment shown in FIG.
2 is placed in close contact with the floor surface, the straight portion 7-1 on the tip side is approximately perpendicular to the floor surface.

In the embodiment shown in FIGS. 4 to 6, the rear straight section 7
A shielding plate 8 which covers the opening of the suction lower corresponding to -2 in a freely openable and closable manner is slidably disposed.

Effects of the Invention Since the present invention is configured as described above, it produces the effects described below.

<1> When the rear straight part touches the floor, there is no suction from both sides, so when cleaning corners at the tip of the suction port,
The concentrated suction from the front is strong and there is no dust left behind. Furthermore, the straight part on the tip side is shorter than the straight part at the back.
When the rear straight part is brought into close contact with the floor surface, the effect is great if the straight part on the tip side is configured to be approximately perpendicular to the floor surface. This is particularly effective for rechargeable vacuum cleaners whose suction power decreases over time.

(II) By closing the suction port on the rear straight part with a shielding plate, as shown in Figure 6, if it is difficult to operate the vacuum cleaner in a narrow space such as inside a car, you can operate the vacuum cleaner in an upright position. be able to. As shown in FIG. 6, when cleaning an area with a step and a small depth, it is possible to use the suction port located on the straight section on the tip side.

[Brief explanation of the drawing]

FIG. 1 is a cutaway side view of a main part showing an embodiment of the present invention, FIG. This is a sectional view of a main part showing an embodiment, and FIGS. 5 and 6 are explanatory views of its use. FIG. 7 is a sectional view showing a conventional example, and FIGS. 8 and 9 are explanatory views of use. 7... Suction port, 7-1... Straight section on the tip side, 7-2... Straight section at the rear, 8...
・Shielding plate. Name of agent: Patent attorney Shigetaka Awano and 1 other person

Claims (2)

[Claims] (1) A vacuum cleaner in which the suction opening is constructed of two straight lines with bent parts convex outward when viewed from the side of the vacuum cleaner. (2) The vacuum cleaner according to claim 1, further comprising a shielding plate that freely opens and closes the opening of the suction port corresponding to the rear straight portion.