JPH05184487A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To achieve a reduction in cost. a lighter weight and a smaller size by curtailing the number of parts composing an attachment housing part provided in the main body of a vacuum cleaner. CONSTITUTION:A protruded part 13 jutting backward from the rear of the main body is formed into a box having an opening 14 thereabove and a handle 11 is arranged covering the opening 14. Thus, a protruded surface on the side of contacting a floor surface is formed planar when the main body is erected. This achieves a reduction in cost and a smaller size of the main body with the curtailing of the number of parts preventing the scratching of the floor space.

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 which has a convex portion projecting rearward on a rear surface of a main body so that the main body can be used upright.

[0002]

2. Description of the Related Art In recent years, in order to clean a narrow or high place of a house, an electric vacuum cleaner is often used by standing on a floor or the like. Also, when the electric vacuum cleaner is stored, it is often stood upright to save the storage space.

Conventionally, an electric vacuum cleaner of this type has been disclosed in Japanese Unexamined Patent Publication No.
The configuration shown in Japanese Patent No. 59752 has been general. The configuration of such a conventional vacuum cleaner will be described below with reference to the drawings. As shown in FIGS. 6 to 8, the lower part 21 of the main body has a dust collecting chamber (not shown) whose upper part is opened at the front.
A motor (not shown) for sucking dust is installed in the rear portion. A moving roller 22 is attached to the rear side surface of the lower body 21, and a caster roller 23 is attached to the front bottom surface.

The rear opening of the lower body 21 is integrally connected to the lower body 21 by screwing or the like.
Is covered by. The lid 25 is rotatably attached to the upper body 24 so as to cover the opening above the dust collection chamber in the front portion of the lower body 21. Further, the handle 26 is rotatably supported by a rotation center formed on the main body 24, and is used when carrying the vacuum cleaner main body (hereinafter referred to as the main body). The rear lid 27 is attached to the rear portion of the main body, and has an exhaust grate 28 in the lower portion and a convex portion 29 protruding rearward in the upper portion. As shown in FIG. 6, the convex portion 29 of the rear lid 27 supports the main body so that the main body stands upright together with the roller 22 when the main body is erected, and forms a gap 30 so that the exhaust gas from the exhaust grate 28 flows. Further, FIG. 8 shows a configuration having a rear convex portion 29 for supporting the main body so as to stand upright without using the rear lid 27, and the convex portion is generally formed by a rib.

[0005]

However, in such a conventional structure, a separate member such as the rear lid 27 is required in order to form the floor ground side of the convex portion 29 by a surface, and the separate member is required. If not used, as shown in FIG. 8, the convex portion can be constituted only by ribs because of the direction of the die pulling at the time of molding, which may damage an expensive floor surface such as a cypress floor. In addition, there was a problem that the design that deteriorated the appearance became unsightly.

The present invention solves such a problem, and does not require a separate member such as the rear lid 27 and the like, and prevents the floor surface from being damaged by forming the floor contact side of the convex portion 29 with a surface. It is an object of the present invention to provide an electric vacuum cleaner that is prevented and has an improved design.

[0007]

SUMMARY OF THE INVENTION To solve this problem, the present invention is directed to a bottom of a main body having a dust collecting chamber for accumulating dust in a front portion and a storage chamber for storing a cord winding device, a motor and the like in a rear portion. And a lid that covers the upper part of the storage chamber and a lid that covers the upper part of the dust collection chamber. In this configuration, a convex portion having an opening is formed, and a rotatable handle is provided so as to cover the opening of the convex portion.

Further, the convex portion formed on the rear surface of the main body is arranged so as to project rearward of the handle.

In addition, a protrusion that engages with a mating component is formed on either the handle or the protrusion.

[0010]

According to this structure, when the vacuum cleaner main body is used upright, the rear portion of the main body is provided with a convex portion formed to project rearward so as to support the main body together with the rollers in a substantially upright state. By forming a box shape with an upper opening on either of the lower sides, the ground contact side with the floor is formed by a surface without using a separate member as in the conventional case, and the floor surface is not damaged. Further, by disposing the rotatable handle upward so as to cover the opening of the convex portion, the opening of the convex portion is covered with the handle, so that the design is not damaged. Further, since the space between the convex portions formed at both ends of the rear upper portion of the main body is lower than that of the convex portions, it can also serve as a hooking portion for fingers when the handle is rotated.

Further, by projecting the convex portion rearward of the handle, no force is applied to the handle when the main body is erected and the handle can be prevented from rotating naturally.

Further, by forming a protrusion that engages with a counterpart component in either the handle or the opening of the protrusion, the handle is prevented from vibrating during use of the vacuum cleaner, and the usability is improved. It is possible to reduce noise without resonating with the vibration of the motor.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric vacuum cleaner according to an embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show the structure of the electric vacuum cleaner of this embodiment. As shown in the figure, the lower part 1 of the main body has a dust collecting chamber 2 which is opened upward in the front part, and a motor 3 for sucking dust is formed in the rear part.
The lower part 1 of the main body 1 is provided with a moving roller 4 on its rear side surface and a caster roller 5 on its bottom surface.

It is covered by an upper body 6 which is integrally connected to the lower body 1 by screwing or the like opened above the lower body 1 incorporating a motor 3 and the like. The front cover 7 has an intake port 8 for connecting a hose, and is integrally fixed to the lower portion 1 of the main body by screwing or the like. The lid 9 covers the upper opening of the dust collection chamber 2 and is rotatably attached to the main body 6 and is opened and closed when the dust collection bag 10 detachably arranged in the dust collection chamber 2 is attached and detached. . A substantially U-shaped handle 11 having a rotation axis formed near the center of gravity of the main body 6 is rotatably attached above the side surface of the main body 6 to form a part of the outer shell of the main body. An exhaust grate 12 for exhausting the exhaust gas from the motor 3 is formed in the rear portion of the upper portion 6 of the main body, and the rollers 4 are provided at substantially both ends above.
The protrusion 13 is formed so as to protrude rearward to the same extent as the above.
Further, the convex portion 13 is formed in a box shape having an upper opening, and the grip portion of the handle 11 is arranged so as to cover the opening portion 14. Therefore, the central portion of the rear upper part of the main body 6 is recessed from the convex portion 13 and the handle 11, and the concave portion 15 is formed.

Next, the operation of the electric vacuum cleaner of this embodiment having the above structure will be described. When the main body is erected during use or storage, it is supported by the roller 4 and the convex portion 13 formed on the rear portion of the main body 6. The convex portion 13 is formed in a box shape having an opening 14 at the upper side, so that the floor surface 1
6 can be formed by a surface to be grounded, and the floor surface 16
Will not damage. In addition, since the concave portion 15 is formed between the two convex portions 13, it can also be used as a finger hook portion when the handle 11 is inverted.

Further, as shown in FIG. 4, the convex portion 13 formed on the rear portion of the main body 6 is made to project slightly rearward (dimension a) from the rearward protrusion of the handle portion disposed above the convex portion 13. Has been done. With this configuration, when the main body is set up, the handle 1
Since 1 does not directly contact the floor surface 16, no force is applied to the handle 11 to protect the handle 11 and prevent the handle 11 from being displaced.

Further, as shown in FIG. 5, a rib 17 is provided in the opening 14 of the box-shaped convex portion 13 so as to engage with the inner surface of the handle 11. By engaging the grip 11 with the rib 17 and temporarily fixing the grip 11, the grip 1 can be used while the vacuum cleaner is in use.
It is possible to prevent the rattling of No. 1 and to resonate with the vibration of the motor 3 to reduce noise.

[0019]

As is apparent from the above description of the embodiments, the present invention has the following effects. (1) Protruding parts that are open upward are formed on both ends of the main body of the vacuum cleaner so as to project rearward from the rear surface of the main part of the vacuum cleaner. By arranging the movable handle, it is possible to form a floor ground contact surface when the main body is erected without using a separate member, prevent the floor surface from being damaged, and reduce the number of parts. By doing so, cost reduction, weight reduction, and size reduction can be achieved.

Further, by forming a box-shaped convex portion having an opening at the top, the strength of the convex portion can be increased, and at the same time, it has elasticity and exerts a cushioning effect against shock. Further, since a recess is formed between the two convex portions formed on the rear surface of the main body, that is, in the upper central portion of the rear portion of the main body (lower central portion of the handle), the exhaust area of the exhaust gas can be increased when the main body is stood and the grip of the holder It can also be used as a finger hook when inverted, improving usability. (2) Since the convex part formed on the rear surface of the vacuum cleaner main body is arranged so as to project slightly rearward from the handle, the grip does not directly contact the floor surface when the main body is erected. It is possible to prevent the handle from being damaged and prevent the handle from slipping out of the stored state. (3) Temporarily fixing the handle in the stored state by forming a protrusion that engages with a mating component on either the handle or the protrusion.
It is possible to prevent rattling of the handle during use of the electric vacuum cleaner to improve usability, and to prevent the handle from resonating with vibration of the motor to reduce noise. Further, the handle is formed by a part of the outer contour of the main body, so that the design is improved.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a configuration of an electric vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a rear view of the electric vacuum cleaner according to the first embodiment.

FIG. 3 is a sectional view of an essential part of the electric vacuum cleaner according to the first embodiment.

FIG. 4 is a side view showing the configuration of the electric vacuum cleaner according to the second embodiment.

FIG. 5 is a sectional view of an essential part of the electric vacuum cleaner according to the third embodiment.

FIG. 6 is a partially cutaway sectional view showing the structure of a conventional electric vacuum cleaner.

FIG. 7 is a perspective view of the electric vacuum cleaner.

FIG. 8 is a rear view of the electric vacuum cleaner.

[Explanation of symbols]

 4 Roller 6 On Main Body 11 Handle 12 Exhaust Grating 13 Convex Part 14 Opening Part 15 Recessed Part 16 Floor Surface 17 Rib

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masayuki Ueno 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A dust collection chamber having a dust collection chamber for accumulating dust in a front portion, a storage chamber at a rear portion for storing a cord winding device, a motor, and the like, an upper body for covering an upper portion of the storage chamber, and a dust collection chamber. A lid covering the upper part, and a structure in which convex parts having an upward opening are formed at both ends of the upper rear part of the main body or the lower part of the main body so as to project rearward from the rear surface of the main body. An electric vacuum cleaner having a rotatable handle so as to cover the opening of the section. 2. The electric vacuum cleaner according to claim 1, wherein the convex portion formed on the rear surface of the main body is arranged so as to project rearward of the handle. 3. The electric vacuum cleaner according to claim 1, wherein either the handle or the convex portion is formed with a protrusion that engages with a counterpart component.