KR100831784B1 - Vacuum cleaner - Google Patents

Abstract

A vacuum cleaner is provided to absorb shock applied to a main body and a second auxiliary wheel by elastically moving the second auxiliary wheel even if the main body is lifted abruptly. A vacuum cleaner comprises a main body(100), more than one moving wheels(140), auxiliary wheels(180,190), and an assembling part. The moving wheels are capable of moving the main body. The auxiliary wheels placed at the main body supports the movement of the main body. The assembling part positioned at the main body is assembled with the auxiliary wheels. The shaft of the auxiliary wheels is capable of moving applied to the assembling part to be assembled with the assembling part. The auxiliary wheels are positioned from the bottom with predetermined height. The main body consists of a filter unit for filtering air sucked to the main body and a filter cover(150) for selectively opening and closing the filter unit. The auxiliary wheels are formed at the filter cover.

Description

Vacuum cleaner {Vacuum cleaner}

1 is a perspective view of a vacuum cleaner according to the present invention.

2 is a bottom view of a vacuum cleaner according to the present invention.

3 is a rear perspective view of the vacuum cleaner according to the present invention;

4 is a side view of a vacuum cleaner according to the present invention.

5 is a view showing a state in which the filter cover is opened in the vacuum cleaner according to the present invention.

6 is a cross-sectional view taken along the line II ′ of FIG. 2.

FIG. 7 is a cross-sectional view taken along the line II-II ′ of FIG. 6.

8 is a view showing the operation of the second auxiliary wheel in the state that the external force is applied to the second auxiliary wheel according to the present invention.

9 is a view showing a state in which the second auxiliary wheel according to the present invention in contact with the bottom surface.

<Explanation of symbols for the main parts of the drawings>

20: suction nozzle 100: cleaner body

140: moving wheels 150: filter cover

180: first auxiliary wheel 190: second auxiliary wheel

The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner to facilitate movement of the main body and to prevent damage to the bottom surface when the main body is moved.

In general, a vacuum cleaner is a device that sucks air containing dust by using a vacuum pressure generated by a suction motor mounted inside the body, and then filters the dust inside the body.

Such a vacuum cleaner may be distinguished by a canister method in which a nozzle part, which is a large suction port, is provided separately from the main body and connected by a connecting pipe, and an upright method in which the nozzle part is integrally formed with the main body.

On the other hand, the conventional vacuum cleaner includes a cleaner main body provided with a suction motor, a suction nozzle through which the air containing dust on the bottom surface is sucked, and a connection unit for moving the air sucked by the suction nozzle to the cleaner main body; It is mounted to the cleaner body, and includes a dust collecting device for storing the dust separated from the sucked air.

Such a cleaner allows the air containing the dust on the bottom surface to be sucked while the user moves the suction nozzle. In the process of moving the suction nozzle, the cleaner body moves along the suction nozzle.

Thus, since the said vacuum cleaner main body is moved by the said suction nozzle during cleaning, it is preferable that the movement of the said vacuum cleaner main body is performed smoothly. In addition, it is required to prevent the bottom surface from being damaged during the movement of the cleaner.

The present invention has been proposed under the background as described above, and an object of the present invention is to propose a vacuum cleaner which enables the movement of the cleaner body to be performed smoothly.

In addition, an object of the present invention is to propose a vacuum cleaner to prevent damage to the bottom surface during the movement of the cleaner body.

Vacuum cleaner according to the present invention for achieving the above object is a cleaner body; One or more moving wheels to enable movement of the cleaner body; An auxiliary wheel provided on the cleaner body to assist movement of the cleaner body; And a coupling part formed on the cleaner body to which the auxiliary wheel is coupled, and wherein the shaft is movable with respect to the coupling portion while the shaft of the auxiliary wheel is coupled to the coupling portion.

According to another aspect of the present invention, a vacuum cleaner includes a cleaner body; One or more moving wheels to enable movement of the cleaner body; An auxiliary wheel provided on the cleaner body to assist movement of the cleaner body and formed at a position spaced apart from a bottom by a predetermined height; And a cushioning member for absorbing the impact applied to the auxiliary wheel.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

1 is a perspective view of a vacuum cleaner according to the present invention.

Referring to FIG. 1, the vacuum cleaner 10 according to the present invention separates a cleaner body 100 having a suction motor generating suction force therein from dust contained in air sucked into the cleaner body 100. Dust collector 200 is included.

In addition, the vacuum cleaner 10 includes a suction nozzle 20 for sucking air containing dust, a handle 40 for allowing a user to operate an operation of the vacuum cleaner 10, and the suction nozzle ( 20 and an extension tube 30 for connecting the handle 40 and a connection hose 50 for connecting the suction nozzle 20 and the cleaner body 100 are further included.

In this embodiment, a detailed description of the basic configuration of the suction nozzle 20, extension tube 30, handle 40 and the connection hose 50 will be omitted.

In detail, a main body suction part 110 in which air containing dust sucked through the suction nozzle is formed at the front lower end of the cleaner body 100, and dust is separated at one side of the cleaner body 100. A main body discharge part (not shown) through which air is discharged to the outside is formed.

And, the upper portion of the cleaner body 100 is formed with a body handle 130 to enable the user's grip.

On the other hand, the dust collector 200 is detachably mounted to the front portion of the cleaner body 100, the inside is provided with a first cyclone portion (not shown) to separate the dust from the air by cyclone flow do.

Here, the cleaner body 100 is provided with a second cyclone unit 300 which separates dust from the air discharged from the first cyclone unit again. The second cyclone unit 300 is disposed lying on the rear upper portion of the cleaner body 100. In addition, the dust separated from the second cyclone unit 300 is stored in the dust collecting apparatus 200.

The operation of the vacuum cleaner 10 will be described briefly by the above configuration.

First, when power is applied to the vacuum cleaner 10 and the cleaner body 100 operates, suction force is generated by the suction motor provided therein. In addition, the air containing the dust sucked into the suction nozzle 20 by the suction force is sucked into the dust collector 200 along a predetermined flow path formed in the connection pipe and the cleaner body 100.

Then, when the air containing the dust is sucked into the dust collector 200, the dust is primarily separated by the first cyclone portion. In addition, the separated dust is stored in the dust collecting apparatus 200. On the other hand, the air from which dust is separated is discharged from the dust collector 200 and introduced into the cleaner body 100, and moves along a predetermined flow path to the second cyclone unit 300.

And, the air introduced into the second cyclone unit 300 is again dust is separated, the separated dust is introduced into the dust collector 200 is stored, the dust separated air is inside the cleaner body 100 After flowing along a predetermined flow path of the finally discharged to the outside through the body discharge.

2 is a bottom view of the vacuum cleaner according to the present invention, FIG. 3 is a rear perspective view of the vacuum cleaner according to the present invention, FIG. 4 is a side view of the vacuum cleaner according to the present invention, and FIG. 5 is a vacuum cleaner according to the present invention. Figure is a view showing a state in which the filter cover is open.

2 to 5, both side surfaces of the vacuum cleaner 10 according to the present invention are provided with a pair of moving wheels 140 allowing the vacuum cleaner 10 to move.

Such a moving wheel 140 allows the cleaner body 100 to be smoothly moved to the cleaning space by the movement of the suction nozzle 20 or by a user during cleaning.

In addition, a first auxiliary wheel 180 is provided on the bottom of the main body 100 to smoothly move the front, rear, left and right movements of the main body 100.

In detail, the first auxiliary wheel 180 is formed at a front end of the main body 100, and is provided on the body 182 that is rotatable in a horizontal direction, and is rotatably provided on the body 182. Rollers 184 in contact with the surface are included. In addition, the roller 184 is coupled to the body portion 182 by a rotation shaft 186.

That is, the body 182 allows the cleaner main body 100 to change direction to the left or the right, and the roller 184 is in contact with the bottom surface to assist the movement of the main body 100 of the cleaner. .

The body portion 182 is formed in a substantially hemispherical shape and protrudes from the main body 100, and the roller 184 is coupled to a position spaced apart from the center of the body portion 182.

In detail, when the direction of the cleaner is changed while the roller 184 is rotated by friction with the bottom surface, the friction force between the roller 182 and the bottom surface is temporarily increased, and thus the friction force is increased. At this point, the body 182 rotates.

Therefore, in order to smoothly rotate the body 182, the roller 184 is formed to be spaced apart from the center of the body 182 in the present invention.

That is, as the roller 184 is spaced apart from the center of the body portion 182, the moment transmitted to the body portion 182 increases, so that the rotation of the body portion 182 is smoothly performed.

Therefore, when the cleaner main body 100 is pulled to the left side (or when a force is applied from the right side), the body portion 182 is rotated to the left to change the direction of the main body 100, The roller 184 allows the cleaner body 100 to move in the changed direction.

On the other hand, when the cleaner main body 100 is pulled to the right (or when a force is applied to the left), the body portion 182 is rotated to the right to change the direction of the main body 100, The roller 184 allows the cleaner body 100 to move in the changed direction.

On the other hand, the rear side of the cleaner body 100 is provided with a filter unit 170 for filtering the air discharged to the outside, the filter unit 170 is a filter cover 150 provided to be rotatable to the cleaner body Selectively shielded by

In detail, the filter unit 170 is selectively mounted to the filter unit accommodating part 160 formed in the cleaner body 100 while the filter member is protected in the case. The filter cover 150 selectively opens and closes the filter unit accommodating part 160 to protect the filter unit 170 and to replace the filter unit 170.

In addition, a second auxiliary wheel 190 is provided below the filter cover 150 to assist the movement of the cleaner body 100.

In detail, the second auxiliary wheel 190 is coupled to the bottom surface of the filter cover 160 and spaced apart from the bottom surface by being coupled to the filter cover 150. That is, the second auxiliary wheel 190 is not in contact with the bottom surface in the state where the cleaner body 100 is stopped.

The second auxiliary wheel 190 as described above enables the movement of the cleaner body in a state in which the front part of the cleaner body is lifted upward in the process of cleaning using the suction nozzle 20.

6 is a cross-sectional view taken along the line II ′ of FIG. 2, FIG. 7 is a cross-sectional view taken along the line II-II ′ of FIG. 6, and FIG. 8 is a state in which a force is applied to the auxiliary wheel according to the present invention. 9 is a view showing the action of the second auxiliary wheel, Figure 9 is a view showing a state in which the second auxiliary wheel in contact with the bottom surface according to the present invention.

6 to 9, the receiving groove 151 in which the second auxiliary wheel 190 is accommodated is recessed under the filter cover 150. Then, both sides of the receiving groove 151, the coupling portion 152 is coupled to the shaft 192 of the second auxiliary wheel 190 is protruded to a predetermined length.

In detail, the coupling portion 152 has a cross-section having a substantially "C" shape, and a guide groove 154 is formed to allow the shaft 192 of the second auxiliary wheel 190 to be inserted and moved up and down.

At this time, the inlet portion of the guide groove 154 is preferably formed corresponding to or smaller than the shaft 192 so that the shaft 192 is not separated from the coupling portion in a state coupled to the coupling portion 152. Do. Accordingly, the shaft 192 may be inserted into the guide groove 154 by a force fitting method.

In addition, a buffer member 155 is provided inside the coupling part 152 to allow the second auxiliary wheel 190 to move up and down elastically. In detail, the buffer member 155 includes a support 156 supporting the shaft 192 and an elastic member 157 provided below the support 156.

Therefore, when an external force is applied to the second auxiliary wheel 190, the shaft 192 presses the support 156 and the elastic member 157 is contracted so that the second auxiliary wheel 190 is bottomed. It is moved upward based on the plane.

On the other hand, when the external force applied to the second auxiliary wheel 190 is removed, the second auxiliary wheel 190 is moved downward by the restoring force of the elastic member 157.

Therefore, when the cleaner body is suddenly heard and an external force is applied to the second auxiliary wheel 190, the second auxiliary wheel 190 is moved up and down along the guide groove 154 so that the cleaner body 100 is moved. And the impact applied to the second auxiliary wheel 190 are absorbed.

Hereinafter, the operation of the second auxiliary wheel will be described.

In the cleaning process, when the suction nozzle 20 is excessively moved forward, the front of the cleaner body 100 may be heard by the connection hose 50. As shown in FIG. 9, the first auxiliary wheel 180 is not rotated because it is spaced apart from the bottom surface.

Here, when the front end portion of the cleaner body 100 is not lifted above a predetermined height, as shown in FIG. 9, the moving wheel 140 is in contact with a bottom surface to allow movement of the cleaner body.

However, when the front end portion of the cleaner body 100 is lifted above a certain height, even the moving wheel 140 may not come into contact with the bottom surface, and thus the cleaner body 100 may not be moved. In this state, when the cleaner body is moved, there is a problem that the bottom surface is damaged by the rear bottom part of the cleaner body.

However, in the present invention, as the second auxiliary wheel 190 is provided below the filter cover 150 in detail in the rear side of the cleaner body 100, the cleaner body (even though the cleaner body is lifted up to a certain height). 100 can be moved smoothly.

As the second auxiliary wheel 190 is provided, it is possible to further obtain an effect of preventing damage to the bottom surface when the cleaner body is moved in a state in which the cleaner body is lifted up to a certain height.

On the other hand, when the cleaner body is suddenly heard, the second auxiliary wheel 190 collides with the bottom surface. Then, an external force is applied to the second auxiliary wheel 190, so that the second auxiliary wheel 190 is elastically moved along the guide groove 154.

Therefore, since the second auxiliary wheel 190 may be vertically elastically moved, the impact applied to the cleaner body 100 and the second auxiliary wheel 190 may be absorbed.

Of course, the second auxiliary wheel 190 moves the cleaner body 100 when the front end of the cleaner body 100 is lifted above a predetermined height such that the movable wheel 140 contacts the bottom surface. It is easy to understand the role of helping.

As described above, the second auxiliary wheel of the present invention is configured to elastically move by a separate shock absorbing member. However, the second auxiliary wheel itself may be configured to absorb shocks without a separate cushioning member. That is, the material of the second auxiliary wheel may be formed of a urethane material or the like capable of absorbing shock, or a cover of urethane material may be further formed on the outside of the second auxiliary wheel.

According to the present invention as proposed, there is an effect that the cleaner body can be moved smoothly in the changed direction and the changed state of the cleaner body.

In addition, even when the front end of the cleaner body is lifted to a predetermined height during the cleaning process, the cleaner body can be moved, and even if the cleaner body is moved in this state, the bottom surface is not damaged.

In addition, since the second auxiliary wheel may elastically move even when the cleaner body is suddenly heard, the impact applied to the cleaner body and the second auxiliary wheel may be absorbed.

Claims (9)

A cleaner body; One or more moving wheels to enable movement of the cleaner body; An auxiliary wheel provided on the cleaner body to assist movement of the cleaner body; And Is formed in the cleaner body includes a coupling portion to which the auxiliary wheel is coupled, The shaft is movable relative to the engaging portion while the shaft of the auxiliary wheel is coupled to the engaging portion. Vacuum cleaner. The method of claim 1, The auxiliary wheel is provided in a position spaced apart from the floor by a predetermined height. The method of claim 1, The cleaner body may include: a filter unit configured to filter air sucked into the body; Includes a filter cover for selectively opening and closing the filter unit, The auxiliary wheel is a vacuum cleaner formed on the filter cover. The method of claim 1, The coupling part is a vacuum cleaner provided with a cushioning member to enable the elastic movement of the auxiliary wheel. A cleaner body; One or more moving wheels to enable movement of the cleaner body; An auxiliary wheel provided on the cleaner body to assist movement of the cleaner body and formed at a position spaced apart from a bottom by a predetermined height; And And a shock absorbing member for absorbing the impact applied to the auxiliary wheel. The method of claim 5, wherein The cleaner body may include: a filter unit configured to filter air sucked into the body; Includes a filter cover for selectively opening and closing the filter unit, The auxiliary wheel is a vacuum cleaner formed on the filter cover. The method of claim 6, The filter cover has a coupling portion to which the auxiliary wheel is coupled, The shock absorbing member is provided in the engaging portion to enable the elastic movement of the auxiliary wheel vacuum cleaner. The method according to claim 1 or 6, The bottom surface of the cleaner body is provided with another auxiliary wheel for assisting the movement of the cleaner body. The method of claim 8, The another auxiliary wheel and the body portion rotated in the horizontal direction, And a roller formed at a position spaced apart from the center of the body part to be in contact with the bottom surface.

Images