JP2734239B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner constructed by connecting a lower part of a main body and an upper part of the main body.

[0002]

2. Description of the Related Art Conventionally, this kind of vacuum cleaner has been disclosed in
The configuration disclosed in JP-A-3-64339 was common.

Hereinafter, description will be given with reference to FIGS. Reference numeral 1 denotes a dust collecting chamber 2 having an upper opening formed on the front side, and a dust suction motor 5 and a cord winding device (not shown) are installed in a storage chamber 4 divided by a partition 3. Below the body. A handle 6 is integrally formed on the upper front end of the lower body 1, and a roller 7 for movement is mounted on a rear side surface, and a caster roller 8 is mounted on a front bottom surface.

The upper opening of the motor 5 has a rear portion hooked on a projection 9 on the lower portion 1 of the main body, and a front side of the motor 5 is tightened with a screw.
Covered by a body top 10 which is integrally connected to the body.

[0005] A lid 11 covers the upper opening of the dust collection chamber 2 and is rotatably attached to a boss 12 on the main body 10.

[0006]

In the above structure,
The joint 13 between the lower body 1 and the upper body 10 becomes maximum in the width direction of the vacuum cleaner main body (hereinafter referred to as the main body). At this time, the side wall 1a of the lower main body 1 is high and the motor 5 and the cord are wound into the storage chamber 4. When assembling the device or the like, the hand hit the side wall 1a of the lower part 1 of the main body, resulting in poor assemblability. In addition, when the main body hit furniture or the like during use, since the maximum width was the joining portion 13 between the lower main body 1 and the upper main body 10, slippage was poor and the followability of the main body was poor.

The present invention solves such a problem, and improves the assemblability of the motor 5 and the cord winding device under the main body 1 so that the main body does not catch on furniture and the like so that the main body does not catch. It is an object of the present invention to provide a vacuum cleaner which is well used and has excellent usability.

[0008]

According to a first aspect of the present invention, there is provided a technique for accumulating dust in a forward direction.
A dust collection chamber is formed, and a storage chamber for storing motors etc. is formed at the rear.
The lower part of the main body, the upper part of the main body covering the storage chamber,
A cover is provided to cover the upper part of the chamber, and a support is provided in front of and behind the motor.
, And at least a joint portion between the lower part of the main body and the upper part of the main body on the side surface of the storage chamber is formed below the shaft of the motor.

[0009] Technical means of the second invention, in the storage chamber <br/> side, and a mating portion of the main body lower and on the body in front of the roller, the center of the roller attached to the main body lower side It is formed below .

According to a third aspect of the present invention, there is provided the above-mentioned storage chamber.
The joining portion between the lower part of the main body and the upper part of the main body on the side surface and forward of the roller is smoothly connected so as to be lower than the center of the roller attached to the lower surface of the main body.

[0011]

The operation of the above arrangement is as follows.

According to the first aspect of the invention, the side wall below the main body forming the storage chamber for incorporating the motor and the like is formed below the shaft of the motor, so that the motor and the cord winding device are incorporated into the storage chamber by hand. Is hard to hit the side wall under the main body, and the assembling property can be improved.

In the second aspect of the present invention, the joint between the lower part of the main body and the upper part of the main body is formed below the center of the roller , so that the maximum width of the main body can be reduced when the side of the main body in front of the roller hits furniture or the like. It is lower than the center of the roller and does not hinder the rotation of the roller.On the contrary, a force is applied in the direction that promotes the rotation of the roller, the body can move smoothly, the followability of the body improves, and the usability can be improved. is there.

According to the third aspect of the present invention, the joining portion between the lower part of the main body and the upper part of the main body is smoothly connected to be formed below the center of the roller in front of the main body and in front of the roller, thereby forming a side surface of the main body. When it hits furniture etc., the maximum width of the main body changes smoothly and is guided to the roller portion, and as in the second invention, the maximum width of the main body at the front side of the roller is formed below the center of the roller to prevent the rotation of the roller. The main body moves smoothly by the rotation of the rollers without any trouble.

[0015]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

First, in one embodiment of the first invention, in FIGS. 1 and 2, reference numeral 21 denotes a dust collecting chamber 2 having an upper opening shape on the front side.
2 and a dust suction motor 24 and a cord winding device (shown by a dashed line) are provided behind the partition wall 23.
25 is a lower part of the main body in which a storage room 26 in which the storage unit 25 is incorporated is formed. A roller 27 for movement is provided on a rear side surface of the lower part 2 of the main body.
A caster roller 28 is attached to the front bottom surface.

The motor 24 is supported by ribs having a front side mounted on the partition wall 23 and a rear side set up from the lower body 21 via supports 29 and 30 made of an elastic material such as rubber. The upper opening of the motor 24 is covered by an upper body 31 integrally connected to the lower body 21 by screwing or the like. Reference numeral 32 denotes a front cover integrally fixed to the lower part 21 of the main body by screwing or the like. The front cover 32 has a suction port 33 for connecting a hose, and is made of an elastic body such as rubber between the lower body 21 and a tight packing 35 provided with an opening 34 communicating with the suction port 33.
Is pressed. Numeral 36 denotes a lid for covering the upper opening of the dust collecting chamber 22. The lid 36 is rotatably mounted on the main body 31 and has a claw 37 formed on the front side.
The main body 31 is engaged with a concave portion (not shown) formed in the main body.
It is detachably attached to. Numeral 38 denotes a dust bag serving as a filter for capturing dust, which is integrally formed with an opening frame 39 made of cardboard or the like by bonding or the like, and has a circular hole 39a at the center. Is provided. Above the main body 31, a display mechanism 41 for displaying when the dust bag 38 is full of dust with the hands 40 is built in. 42 is the display mechanism 41
This is a cover for fixing an outer shape. Also, the mouth frame 39
A bag opening retainer 43 which engages with the upper end of the main body to position and fix the dust collecting bag 38 is rotatably mounted below the main body.
Reference numeral 44 denotes a packing attached to the front periphery of the upper surface of the dust collection chamber wall 45 of the lower body 21 and has a structure in which the lid 36 keeps airtight. A suction hole 46 is provided in the partition wall 33 of the dust collection chamber 22, a secondary filter 47 made of a nonwoven fabric or the like is built in, and a rib 48 for preventing the dust collection bag 38 from adhering is formed. Reference numeral 49 denotes a handle used to carry the main body, and is rotatably attached to the upper part 31 of the main body. A joining portion (divided portion) 50 of the lower main body 21 and the upper main body 31 is formed below the center line 51 of the motor shaft.

The operation of the above configuration is as follows.

A joining portion 50 of the lower body 21 and the upper body 31
Is formed below the center line 51 of the motor shaft , so that the hand does not easily hit the lower body 21 when the motor 24 or the cord winding device 25 is incorporated into the lower body 21, thereby improving workability. is there.

As one embodiment of the second invention, as shown in FIGS. 2 and 3, the joining portion 50 of the lower main body 21 and the upper main body 31 is located in front of the roller 27 and at the center 52 of the roller 27.
It is configured to be located below. As a result, the force (pulling force) A for moving the main body when the side surface of the main body hits furniture or the like is changed to the vector B as shown in FIG. By the action of the vector B to promote the rotation of the roller 27, the main body moves smoothly without being caught by furniture or the like at the roller 27 portion.

As an embodiment of the third invention, as shown in FIGS. 2 and 3, the change in the side of the body 50 of the joining portion 50 between the lower body 21 and the upper body 31 is measured by the roller 27 from the front of the body. Is formed so as to be less than the center 52 of the roller 27 in front of the roller 27, so that the contact surface changes smoothly when the side surface of the main body hits furniture or the like, and when the contact surface comes into contact with the roller 27, the roller 27 Since a force is applied in the rotation direction C, the main body moves smoothly.

[0022]

As described above, the present invention has the following significant effects.

According to the first aspect of the present invention, the joining portion (divided portion) between the lower part of the main body and the upper part of the main body is formed below the shaft of the motor. Can be improved.

In the second invention, the joining portion (divided portion) between the lower part of the main body and the upper part of the main body is located in front of the roller and from the center of the roller.
By forming it downward , when it hits furniture, etc. during use, the force is applied in the direction of rotation of the roller and the body moves smoothly without being caught, the followability of the body is significantly improved and usability can be improved It is.

According to the third aspect of the present invention, furniture and the like are changed by smoothly changing the joining portion (divided portion) between the lower part of the main body and the upper part of the main body so as to be below the center of the roller from the front of the main body in front of the roller. The contact surface gradually changes, and a force acts in the direction of rotation of the roller at the roller portion, so that the main body moves more smoothly. Also, in the external design, the maximum width of the main body gradually decreases from the front part to the rear part, so that there is a sense of stability at a low center of gravity, and there is also an advantage that the main body looks small.

As described above, the present invention provides a very useful effect in practical use.

[Brief description of the drawings]

FIG. 1 is a sectional view of a vacuum cleaner according to an embodiment of the present invention, except for a portion below a main body.

FIG. 2 is a side view of the vacuum cleaner showing one embodiment of the present invention.

FIG. 3 is a plan view of the vacuum cleaner showing one embodiment of the present invention.

FIG. 4 is a partial sectional view of a vacuum cleaner showing a conventional example.

FIG. 5 is a perspective view of a lower portion of a main body of a vacuum cleaner showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Lower part of main body 24 Motor 25 Cord winding device 26 Storage room 27 Roller 31 Upper part of main body 50 Fitting part (divided part) 51 Center of motor shaft 52 Center of roller

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor: Yukiyuki Ueno 1006, Kazuma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-56-143126 (JP, A) JP-A-4- 329919 (JP, A) Fully open 1979-73263 (JP, U) Fully open 1987-83350 (JP, U) Fully open 1987-96351 (JP, U) Fully open, 59-176446 (JP, U) Shokai Sho 56-56850 (JP, U)

Claims (3)

(57) [Claims] 1. A dust collection chamber for accumulating dust in the front is formed ,
A lower part of the main body having a storage chamber for storing a motor and the like at the rear ,
A main body covering the storage chamber and a lid covering the dust collection chamber ;
A vacuum cleaner, wherein the vacuum cleaner is supported by a base and at least a joining portion between the lower part of the main body and the upper part of the main body on the side surface of the storage chamber is formed below the axis of the motor. 2. A joint portion between the lower part of the main body and the upper part of the main body on the side of the storage chamber and in front of the roller is formed below the center of the roller attached to the lower side of the main body. The vacuum cleaner according to claim 1. 3. The connecting portion between the lower part of the main body and the upper part of the main body on the side of the storage chamber and in front of the roller is smoothly tied so as to be lower than the center of the roller attached to the lower side of the main body. The vacuum cleaner according to claim 1, wherein the vacuum cleaner is formed.