JP2515206Y2 - Vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a vacuum cleaner used at home.

<Prior Art> Conventionally, this type of vacuum cleaner is known, for example, from Japanese Patent Publication Nos. 63-31210 and 63-31211.

This conventional example is a vacuum cleaner that rotates a rotating brush with a driving wheel that rolls in contact with the floor surface, and scrapes dust on the floor surface into the dust collection chamber of the case body by this rotating brush. It could be used even if a vacuum suction type vacuum cleaner was set on the pipe.

<Problems to be solved by the invention> In this conventional vacuum cleaner, when a vacuum suction type vacuum cleaner is connected and used, it is good, but when manually used,
When the dust scraped up scattered not only in the dust collection chamber but also in the air inlet near the dust collection chamber and the dust collected in the dust collection chamber was discarded, it was difficult to remove the dust trapped in the air inlet or the back.

Further, since it is difficult to take out the dust, there is a drawback that the floor cleaned with care is soiled when the dust is taken out.

<Means for Solving Problems> The present invention focuses on this point, and a rotary brush is provided in the front of the suction case body and a dust collection chamber is provided behind the rotary brush to transmit the rotation of the left and right power vehicles. In a vacuum cleaner that rotates the rotary brush to scrape up dust on the floor and stores it in the dust collecting chamber, the suction case body is composed of a lower case, an upper case, and a case lid, and the front part of the upper case. The cleaning is characterized in that a guide portion is provided on the inner surface of the rotary brush, and the gap between the guide portion and the outer circumference of the rotating brush is larger as the dust collecting chamber is approached and the opening end of the guide portion 24 is projecting downward into the dust collecting chamber 18. It is related to the machine.

<Operation> As is well known, when the suction case body 1 is moved in the front-back direction in the state shown in FIG. 2, the rotation of the power train 5 causes the transmission gear 7 and the rotary brush 8 to rotate in the front-back direction via the rotary gear 6, and the blade The brush 15 picks up dust on the floor surface such as tatami mats, jutan, and boards, and collects it in the dust collection chamber 18.

At this time, since the guide portion 24 is provided, the scraped dust is smoothly stored in the dust collection chamber 18 without scattering to the air inlet 22 side.

In addition, since dust is sucked in smoothly, noise when connected to a vacuum suction type vacuum cleaner is reduced.

When a vacuum cleaner is connected, dust in the dust collection chamber 18 is sucked into the vacuum cleaner through the connection port 23.

At the time of this cleaning, when the floor surface is located between the tatami mats or plates which are relatively flat as shown by the line BB in FIG. 2, the rotary brush 8 rotates at the normal lowermost position.

That is, the guide portion 10 of the support shaft 9 is kept supported by the bottom portion of the bearing portion 11.

Next, when the suction case body 1 has a sinker or a convex portion which sinks like the line C-C in FIG. 2 or when the front side is strongly pressed, the rotating brush 8 is repulsed by the elastic force of the blade brush 15. Then, as shown by the chain line D, it is automatically changed to the upper position and rotated.

That is, the guide portion 10 of the support shaft 9 is lifted to the 12 play positions above the bearing portion 11 and is kept supported by the blocking protrusion 13.

In this way, the rotary brush 8 automatically moves up and down according to the floor surface state to remove dust without manual operation, so that cleaning can be efficiently performed without the need for a person to make a judgment.

Of course, the automatic vertical movement of the rotary brush moves up and down in accordance with the unevenness of the floor surface even when the unevenness of the floor surface is continuous, so that the cleaner can be more effectively cleaned.

<Example> 1 is a box-shaped suction case body, which is composed of a lower case 2, an upper case 3, and a case lid 4.

The power vehicle 5 is slightly protruded from the bottom surface of the lower case 2 to the left and right of the center of the front and rear of the suction case body 1, and is attached to the shaft so that it cannot be changed vertically and horizontally.

The power train 5 rotates back and forth due to frictional resistance due to contact with the floor surface, and a rotary gear 6 having an outer diameter slightly smaller than that of the power train 5 is integrally fixed inside.

Reference numeral 7 is a transmission gear that meshes with the left and right rotary gears 6 on the front side, and the outer diameter ratio of the rotary gear 6 and the transmission gear 7 is 3: 2, and is fixed to both ends of the rotary brush 8.

The support shaft 9 is loosely inserted into the center of each of the transmission gears 7 so that the transmission gear 7 is rotatable, and the angular guide portion 10 is formed on the other end of the support shaft 9 to form the lower case 2. Square bearing
When the guide part 10 is detachably inserted into the bearing part 11 and the guide part 10 is inserted into the bearing part 11, a play 12 such as a gap is provided in the upper direction of the bearing part 11 so as to move up and down by a dimension of 2 to 3 mm to prevent from the upper case 3. Protrusion
Let 13 hang down.

The play 12 has a dimension of 2 to 3 mm within a range in which the rotation gear 6 and the transmission gear 7 are not disengaged from each other, and the play 12 allows the vertical position of the rotary brush 8 to be changed according to the floor condition.

The rotating brush 8 includes a brush mandrel 14 and the brush mandrel 14
Elastic force (rubber hardness) on the outer circumference with rubber or soft plastic
The blade brush 15 having 50 to 60 degrees) is radially and laterally twisted and planted, and is exposed from the dust collection port 16 which is opened horizontally in the bottom surface of the lower case 2, and the outer size thereof is a motor vehicle. The diameter is slightly larger or longer than 5.

The blade brush 15 has a horizontally long raised protrusion 1
Multiple 5'are installed in parallel to enhance the dust removal effect.

The case lid 4 is fixed to the upper case 3 by the left and right lid stoppers 17, and the clearance between the outer periphery of the case lid 4 and the blade brush 15 is about 1 to 5 mm.

Reference numeral 18 denotes a dust collecting chamber formed on the rear side of the rotating brush 8, which is separated from the rotating brush 8 side by a partition wall 19 which is erected halfway and which is opened and closed by an operating lever 20 below.
21 and a vertically movable connection port 23 which is connected to the rear side while narrowing the air inlet 22.

In order to allow dust sent from the rotating brush 8 to be smoothly thrown into the dust collecting chamber 18 in the front part of the upper case 3, the gap between the rotating brush 8 and the rotating brush 8 becomes wider as it approaches the dust collecting chamber 18. A guide 24 is provided.

Further, the opening end of the guide portion 24 exceeds the partition wall 19 and the dust collection chamber.
It projects downwards within 18.

The connection port 23 is hollow so as to be connected to an extension tube of a vacuum cleaner or a handle bar for a manual cleaner.

Reference numeral 25 is a rear driven vehicle provided below the lower case 2 and behind the motor vehicle 5.

Reference numeral 26 denotes a front driven wheel provided below the lower case 2 and in front of the motor vehicle 5 and the rotating brush 8.

27 is a band that covers the connection between the lower case 2 and the case lid 4.

Next, the operation will be described. As is well known, when the suction case body 1 is moved in the front-back direction in the state shown in FIG.
The rotation rotates the transmission gear 7 and the rotary brush 8 in the front-rear direction via the rotary gear 6, and the blade brush 15 scrapes up dust on the floor surface such as tatami mat, jutan, and boards and collects it in the dust collecting chamber 18. .

At this time, since the guide portion 24 is provided, the scraped dust is smoothly stored in the dust collection chamber 18 without scattering to the air inlet 22 side.

In addition, since dust is sucked in smoothly, noise when connected to a vacuum suction type vacuum cleaner is reduced.

When a vacuum cleaner is connected, dust in the dust collection chamber 18 is sucked into the vacuum cleaner through the connection port 23.

At the time of this cleaning, when the floor surface is located between the tatami mats or plates which are relatively flat as shown by the line BB in FIG. 2, the rotary brush 8 rotates at the normal lowermost position.

That is, the guide portion 10 of the support shaft 9 is kept supported by the bottom portion of the bearing portion 11.

Next, when the suction case body 1 has a sinker or a convex portion which sinks like the line C-C in FIG. 2 or when the front side is strongly pressed, the rotating brush 8 is repulsed by the elastic force of the blade brush 15. Then, as shown by the chain line D, it is automatically changed to the upper position and rotated.

That is, the guide portion 10 of the support shaft 9 is lifted to the 12 play positions above the bearing portion 11 and is kept supported by the blocking protrusion 13.

In this way, the rotary brush 8 automatically moves up and down according to the floor surface state to remove dust without manual operation, so that cleaning can be efficiently performed without the need for a person to make a judgment.

Of course, the automatic vertical movement of the rotary brush 8 moves up and down according to the unevenness even when the unevenness of the floor surface is continuous, so that the cleaner can be more effectively cleaned.

<Effect of the Invention> The present invention has a rotating brush in the front of the suction case body and a dust collecting chamber behind the rotating brush, and transmits the rotation of the left and right power vehicles to rotate the rotating brush to rotate the floor surface. In a vacuum cleaner for picking up dust of the above and storing it in the dust collecting chamber, the suction case main body is composed of a lower case, an upper case and a case lid, and a guide portion is provided at a front portion of the upper case. The gap with the outer circumference of the rotating brush is larger as it gets closer to the dust collecting chamber, and the opening end of the guide portion 24 abuts downward into the dust collecting chamber 18, so dust collected from the floor can be collected smoothly. It was stored in the room and the disposal of garbage became easier.

In addition, since dust is sucked in smoothly, noise when connected to a vacuum suction type vacuum cleaner is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of this device, FIG. 2 is an enlarged vertical sectional view of the same,
3 is a bottom view of the same, FIG. 4 is a partial sectional view taken along the line AA ′ of FIG. 2, and FIG. 5 is a perspective view of the support shaft and the bearing portion. 2 ... Lower case, 3 ... Upper case, 4 ... Case lid, 5
...... Motor vehicle, 8 …… Rotating brush, 18 …… Dust collection chamber, 24 ……
Information department.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Kazama 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Uchida Manufacturing Co., Ltd. (72) Koji Ojima 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Uchida Manufacturing Co., Ltd. ( 72) Inventor Kazunori Suda 7-7 Higashishinpo, Sanjo City, Niigata Prefecture Examiner Uchida Manufacturing Co., Ltd. Hiroyuki Sugino (56) Reference JP 61-62425 (JP, A) JP 63-40535 (JP, B2) )

Claims (1)

(57) [Scope of utility model registration request] 1. A rotating brush 8 in front of the suction case body 1.
And a dust collecting chamber 18 provided behind the rotary brush 8 to reach the rotation of the left and right motor vehicles 5 to rotate the rotary brush 8 to scrape up dust on the floor surface and store the dust in the dust collecting chamber 18. The suction case body 1 is composed of a lower case 2, an upper case 3 and a case lid 4, and a guide portion 24 is provided in the front portion of the case 3 so that a gap between the guide portion 24 and the outer periphery of the rotary brush 8 is gathered. The guide portion is enlarged as it approaches the dust chamber 18.
24 A vacuum cleaner characterized in that the opening end is provided so as to project downward into the dust collection chamber 18.