JPH07184809A - Vacuum cleaner - Google Patents

Abstract

(57) [Summary] [Purpose] To further improve the followability of the vacuum cleaner body. An electric vacuum cleaner in which a pair of left and right rear wheels 28a, 28b are provided on a lower rear portion of a cleaner body 10 is tilted such that the pair of rear wheels 28a, 28b are narrowed at a facing interval. And the eaves-shaped fenders 34a and 34b for covering the rear wheel are formed on the upper side of the rear wheel of the cleaner body. The pair of rear wheels tilted in the inverted C shape allows the main body of the vacuum cleaner to be turned with a small turning operation force, and the eaves-shaped fender does not increase the overall shape and the space between the main body and the main body. Prevent the power cord from entering.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner, and more particularly to a miniaturized electric vacuum cleaner suitable for improving handleability and resource saving.

[0002]

2. Description of the Related Art A general electric vacuum cleaner has a cleaner body having a dust collecting part, an electric blower part, etc. inside, a suction hose assembly consisting of a suction hose connected to the dust collecting part, an extension pipe and a suction port. And a pair of left and right rear wheels arranged on the lower rear side of the cleaner body, and a front wheel arranged on the lower front portion of the cleaner body, and the user grips the extension pipe and sucks the mouthpiece. It is configured to operate and pull the extension pipe or the suction hose to follow (run and rotate) the cleaner body.

The main body of the vacuum cleaner in such an electric vacuum cleaner is generally constructed by combining molded parts of synthetic resin, and is disclosed in, for example, Japanese Patent Laid-Open No. 62-299228.

[0004]

An electric vacuum cleaner is often used by a woman, and it is desired that the main body of the vacuum cleaner follow lightly with a pulling force that is as small as possible. From the point of view, it is also aimed to be smaller and lighter.

However, since the main body of the vacuum cleaner requires a large dust collecting chamber in order to secure a large dust collecting capacity, and a large electric blower in order to obtain a strong dust collecting force, cleaning is required. There is a limit to downsizing the machine body.

Therefore, an object of the present invention is to further improve the followability of such a cleaner body.

[0007]

According to the present invention, there is provided a cleaner body having a dust collector and an electric blower unit therein, a suction hose assembly connected to the dust collector, and a rear lower portion of the cleaner body. In an electric vacuum cleaner including a pair of left and right rear wheels arranged on a side portion and a front wheel arranged on a lower front portion of the cleaner body, the pair of rear wheels have a narrower facing distance between them. Thus, the cleaner body is tilted and supported, and the upper side portion of the rear wheel of the cleaner body is formed in an eaves-like shape to cover the rear wheel.

[0008]

The pair of rear wheels, which are opposite to each other and are inclined in an inverted V shape so that the facing distance is narrow at the lower side, can turn the cleaner main body with a small turning operation force, and the eaves-like cover. Prevents the power cord, etc. from getting inside the main body and getting caught.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, a cleaner body 10 assembled from synthetic resin molded parts has a dust collecting portion 12 having a dust collecting chamber formed therein and an electric blower portion 14 accommodating an electric blower. .

The dust collecting portion 12 is provided with a lid cover 16 for opening and closing the dust collecting chamber, and one end of a suction hose 20 connected to a hose insertion port 18 formed in the lid cover 16 has one end.
Communicate with the dust bag set in. The other end of the suction hose 20 is connected to a suction body 26 via an extension pipe 24 to form a suction hose assembly. Reference numeral 22 denotes a hand switch unit installed on the upper end of the extension pipe 24, which is operated by the user to control the air flow rate of the electric blower.

The wheels on which the cleaner main body 10 travels are a pair of large-diameter rear wheels 28a (28b) located on the left and right sides of the lower rear part of the cleaner main body 10, and one wheel located on the bottom center of the front lower part. A front wheel 30 having a small diameter is provided. The pair of rear wheels 28a (28b) are supported on both left and right sides of the lower rear portion of the cleaner body 10 by inclining with respect to the vertical direction so as to form an inverted C-shaped camber state in which the facing distance is narrow at the lower side. It

On the rear side of the cleaner body 10,
An eave-shaped fender 34a (34b) is provided so as to project so as to cover an upper open portion of the rear wheel 28a (28b), and a bumper 36 is provided on the front side portion so as to be continuous with the fender 34a (34b). ing.

Hereinafter, the cleaner body 10 and the rear wheels 28a, 2
The relative relationship between the 8b, the fenders 34a, 34b, and the bumper 36 will be described in more detail with reference to FIGS.

The rear wheels 28a and 28b are provided on the main body 10 of the cleaner.
Is a large diameter having a diameter of about ⅔H with respect to the height dimension H of the vacuum cleaner, and is supported on the lower left and right sides of the cleaner body 10 at an inclination of about 5 degrees with respect to the vertical. It When the rear wheels 28a and 28b are tilted in this manner, the rear wheels 2
The upper edge portions of 8a and 28b are separated from the side surfaces of the cleaner body 10 and open outward, and the gap between the rear wheels 28a and 28b and the cleaner body 10 is increased to facilitate the insertion of a power cord or the like. .

In order to prevent an increase in the gap, the upper part of the cleaner body 10 may be shaped so as to be largely swollen as a whole, but this is against the reduction in size and weight.

In this embodiment, in order to prevent the vacuum cleaner body 10 from becoming large in size, the fenders 34a, 3a are
4b is a shape that protrudes like an eaves from the width dimension D of the contour of the cleaner body 10 with a width dimension t that covers the open portions of the rear wheels 28a and 28b, and the front half portion thereof is the bumper 36.
It rises along the side surface of the main body in an arc shape from the rear end, and the latter half extends horizontally toward the rear.

Incidentally, in FIG. 5, reference numeral 38 denotes a dust collecting bag which is attached to the inside of the lid cover 16 so as to communicate with the hose insertion port 18 and is set in the dust collecting chamber 40.
2 is an electric blower for exhausting the dust collecting chamber 40, and 44 is a control circuit device. Further, in FIG. 6, reference numeral 46 is an automatic power cord winding device.

[0019]

According to the present invention, the pair of rear wheels are supported by being tilted in an inverted V-shape so that the facing distance is narrow at the lower side, so that the cleaner body can be swung with a small turning operation force. In addition, by tilting the rear wheel, the gap created between the rear wheel and the cleaner body is covered with a fender protruding like an eaves to prevent power cords from entering and trapping. It is possible to obtain an effect that it is possible to prevent the entire shape of the from becoming large. Therefore, the followability of the cleaner body is further improved.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an electric vacuum cleaner according to the present invention.

FIG. 2 is a perspective view of a main body portion of the electric vacuum cleaner shown in FIG.

FIG. 3 is a side view of a main body portion of the electric vacuum cleaner shown in FIG.

FIG. 4 is a rear view of the main body portion of the electric vacuum cleaner shown in FIG. 1.

5 is a vertical sectional side view of a main body portion of the electric vacuum cleaner shown in FIG. 1. FIG.

FIG. 6 is a vertical cross-sectional rear view of the main body portion of the electric vacuum cleaner shown in FIG.

[Explanation of symbols]

10 ... Vacuum cleaner body, 28a, 28b ... Rear wheel, 34a,
34b ... Fender.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Morio Ozawa 1-280 Higashi Koikekubo, Kokubunji City, Tokyo Inside Hitachi Design Laboratory (72) Inventor Naoto Tsuruta 4-6 Kanda Surugadai, Chiyoda-ku, Tokyo Hitachi, Ltd. In-house (72) Inventor Hiroshi Odawara 1-1-1, Higashi-Taga-cho, Hitachi, Ibaraki Prefecture Living Company Division, Hitachi, Ltd. (72) In-house Seiichi Kawauchi 1-1-1, Higashi-Taga-cho, Hitachi, Ibaraki Inside Titaga Technology Co., Ltd.

Claims (3)

[Claims] 1. A cleaner main body having a dust collecting part and an electric blower part inside thereof, a suction hose assembly connected to the dust collecting part, and a pair of left and right arranged at a lower rear part of the cleaner main body. An electric vacuum cleaner having a rear wheel and a front wheel arranged at a lower front portion of the cleaner body, wherein the pair of rear wheels are tilted so that a facing interval becomes narrow at a lower side, and the cleaner body is provided. An electric vacuum cleaner characterized in that the upper side portion of the rear wheel of the cleaner body is formed into an eaves-like shape that covers the rear wheel. 2. A cleaner main body having a dust collecting part and an electric blower part inside, a suction hose assembly connected to the dust collecting part, and a pair of left and right arranged on a lower rear part of the cleaner main body. An electric vacuum cleaner having a rear wheel and a front wheel arranged at a lower front portion of the cleaner body, wherein the pair of rear wheels are tilted so that a facing interval becomes narrow at a lower side, and the cleaner body is provided. An electric vacuum cleaner characterized in that it is positioned outside and supported by the vacuum cleaner, and an upper position of the rear wheel of the cleaner body is provided in an eave-like shape so as to cover the rear wheel. 3. The electric vacuum cleaner according to claim 1 or 2, wherein the rear wheel is mounted at an inclination of about 5 degrees with respect to the vertical.