JPH0315427A - Electric cleaner - Google Patents

Abstract

PURPOSE:To compact the body size without specially enlarging the mounting space of wheels and prevent the overturn of a tilted body by providing such a dimensional structure as bringing a caster base into contact with a floor surface when the body is tilted by the addition of an overturning force, and returning the tilt when the overturning force is removed. CONSTITUTION:A caster base 24 has a laterally protruding form to surround a lower code hook 20, and the lower code hook 20 is formed in such a manner that its most outside end is situated in the inside of the rear protruding part 111 of the caster base 24 when a cleaner body is overturned backward. When a wheel 3 is mounted on the lower part of the rear protruding part 11 which is a position more distant from the center of gravity, the backward overturn starting angle of the cleaner body can be increased, resulting in a more increased stability. The center-of-gravity position G of the cleaner body is situated in the overturn returning direction, and even if an overturning force acts at the point of time when the front end 113 of the caster base 24 is touched by a floor surface, the front end of the caster base 24 is touched by the floor surface to prevent the overturn.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vacuum cleaner in which a motor and a dust collecting section are arranged vertically, and the dust collecting section is formed by a deep tank. This invention relates to a structure in which moving casters or a caster base with wheels attached serve as a support when the main body is tilted to prevent it from falling.

[Conventional technology]

Conventionally, the casters or wheels (hereinafter collectively referred to as wheels) of a vacuum cleaner were attached to the dust case either by attaching them directly to the dust case, or by attaching multiple caster stands with individual casters attached to the dust case. The tipping angle when the main unit is tilted is determined by the height of the center of gravity and the arrangement dimensions of the casters, and no vacuum cleaners have been found that have a part that touches the floor to prevent the main unit from tipping over.

[Problem that the invention seeks to solve]

In other words, the conventional technology does not consider the secondary fall prevention structure other than the fall angle determined by the wheel installation interval and the height of the center of gravity. There was a problem in that it was necessary to increase the spacing, and the main body could not be made into a vertically long and compact size.

SUMMARY OF THE INVENTION An object of the present invention is to make the size of the main body compact without particularly increasing the distance between the wheels, and to prevent the main body from falling when it is tilted.

[Means for solving problems]

[1] The caster base dimensions and center of gravity height (overturning angle) should be such that the periphery of the caster base, where the wheels can be reached, hits the floor before reaching the inclination or overturning angle of the main body. This is achieved by

[Effect]

In other words, when the periphery of the caster base hits the floor when the machine body is tilted, if the center of gravity of the vacuum cleaner body is positioned in the direction of recovery from the fall, even if the vacuum cleaner body is subjected to a falling force, it will not fall. The periphery of the caster base hits the floor to avoid falling. Even if a force greater than that is applied to the vacuum cleaner, the periphery of the caster base acts to prevent it from tipping over, and the force is weakened, causing the vacuum cleaner to fall over. do not have. For this reason,
This prevents damage and malfunction of the vacuum cleaner body, and if the vacuum cleaner body falls forward, the hose will come into contact with the floor.
According to the present invention having the above configuration, the contact force of the hose is weakened and there is no child who bends the hose strongly, so that the life of the hose is less likely to be adversely affected.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In the cross-sectional and perspective views showing the overall structure of FIGS.
The main parts are a case 1 to a case 6, which are made up of a tank 5, which is fixed to a tank 5, and a cloth filter 52.

On the side of the tank 5, a suction port (A) 18 through which a hose 62 is inserted and removed is attached to the outer surface, and a suction port (B) 38 is attached to the inner surface by screws 40 so as to sandwich a gasket 37. .

A plurality of component storage holes 22 are provided on the outer periphery of the upper surface of the caster base 4, and a gap suction port 23 and a shelf suction port 24 are fitted into the component storage holes 22 to be detachably supported. can do.

The main body case 2 consists of a motor base 9 that houses the electric blower 1 and an upper case 10, and a handle 11 is attached to each of these parts as shown.

Lower cod hook 2 attached to caster base 4
0 and the upper cord hook 21 rotatably supported by the handle l1 are provided facing each other at the top and bottom of the rear part of the vacuum cleaner, and the power cord 14 can be wound and stored therein as shown in FIG. To unstorage and take out the power cord 14, as shown in FIG. You can take it out all at once by holding it and pulling it out.

As shown in FIGS. 3 and 4, the shape of the caster base 24 is such that the left and right sides protrude so as to surround the lower cord hook 20, and the following effects can be obtained.

If the vacuum cleaner falls backwards, the bottom hook 2
The outermost end of 0 is located inside the rear protrusion ↓1l of the caster base 4, regardless of whether the power cord 14 is stored or not.
It can always be protected by the caster base 4.

Further, as shown in FIG. 9, applied components such as the gap suction port 23 attached to the component storage hole 22 can be prevented from directly hitting the floor surface. The same effect as described above can be obtained even if, as shown in FIG. 10 as another embodiment, a fixed wheel 112 is attached so as to protrude from the rearmost portion instead of the rear protrusion 111.

As shown in No. 9 M, if the wheels 3 are attached to the lower part of the rear protrusion 1 which is located farther from the center of gravity, the angle at which the vacuum cleaner body starts to fall backward can be increased and stability can be increased. can be increased.

FIG. 11 shows an example of the vacuum cleaner body falling forward. The center of gravity position G of the vacuum cleaner body is in the direction of return from overturning (f
1 method only), and when the front end 113 of the caster base 4 hits the floor, even if a falling force is applied, the front end of the caster base 24 will hit the floor and the fall can be avoided. .

Even if more force than this is applied to the vacuum cleaner body, the front end 113 will act as an anti-fall force and the force will be weakened before the cleaner body falls over, so no strong impact force will be applied to it. do not have. Therefore, as shown in FIG. 11, the floor abutting portion 114 of the hose 62 is not strongly abutted or bent, so that the life of the hose 62 is less likely to be adversely affected.

〔Effect of the invention〕

According to the present invention, it is possible to prevent the vacuum cleaner from falling over, which may occur due to l''j:f, and furthermore, even if the vacuum cleaner body receives a strong force and falls over, the impact force is weakened, so that the vacuum cleaner body, the hose It is possible to prevent damage and malfunction such as, etc., and extend the life of the vacuum cleaner.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view showing the overall structure of a vacuum cleaner body according to an embodiment of the present invention, Fig. 2 is a perspective view similarly seen from the front, and Fig. 3 is a perspective view seen from the rear. . FIG. 4 is a structural explanatory diagram showing the cloth filter assembly 55, dust case 6, and caster base 4. FIG. 5 is a structural explanatory diagram showing the usage state and overall configuration of a vacuum cleaner according to an embodiment of the present invention. FIGS. 6 and 7 are explanatory diagrams showing a method for storing and releasing the power cord 14. Figures 8 and 9 are explanatory diagrams for protecting the lower cord hook 20 and the attached suction port 23 when storing parts;
FIG. 0 is a perspective view showing another embodiment regarding protection of the lower cord hook 20 and the attached suction port 23. Fig. 1 is an explanatory diagram regarding the stability of the vacuum cleaner body. 7 8 2 4 Figure 4 Figure 3 Figure 6 Figure 8 Figure 11 112

Claims (1)

[Claims] 1. When a vacuum cleaner is equipped with a main body case assembly containing a built-in electric blower for airflow suction, a dust case forming a dust collection section, and a caster base with movable casters or wheels, if a toppling force is applied. A vacuum cleaner characterized by having a dimensional structure in which the caster base hits the floor surface when tilted, and returns to its tilted position when the force of the fall is removed.