KR20050123216A - Device for determining the driving of a roll brush of a upright typed vacuum cleaner - Google Patents

Abstract

Disclosed is a roll brush driving determining apparatus for an upright vacuum cleaner which prevents wear and breakage of a belt during rotation and non-rotation of a roll brush and enables smooth operation of each link. The roll brush driving determining apparatus includes a bracket having first and second protrusions formed on an outer circumference of the motor shaft insertion hole. A guide hole is formed at the other end of the bracket, and a first link having a first shaft hole corresponding to the first protrusion is rotatably installed. Between the bracket and the first link is formed a second shaft hole in which the second bearing member is installed so as to be installed in the second projection at one end of the front surface, and a third projection is inserted into the guide hole in the middle portion thereof. A belt engaging portion for fixing is formed, and a second link having a fourth protrusion formed on the rear surface thereof is rotatably installed. The third protrusion is provided with a bushing for wear prevention and smooth operation. The belt locking portion is provided with a first bearing member for preventing wear and damage of the belt. The second link provided on the second protrusion is provided with an elastic member for elastically supporting the second link during rotation and non-rotation of the roll brush. The roll brush driving determination device of the upright vacuum cleaner configured as described above can prevent wear and breakage of the belt during rotation and non-rotation of the roll brush, and smooth operation of the first and second links can be achieved.

Description

Device for determining the driving of a roll brush of a upright typed vacuum cleaner}

The present invention relates to a roll brush driving determination device of an upright vacuum cleaner, and more particularly, by installing a separate bearing member at the engaging portion of each belt linking portion of the roll brush driving determination device of an upright vacuum cleaner. The present invention relates to a roll brush driving determining apparatus of an upright vacuum cleaner which prevents the belt from being worn and broken by friction with the belt catching portion when the brush is rotated and non-rotated.

Generally, a vacuum cleaner is also called an electric cleaner, and absorbs dust such as a carpeted living room floor by air absorption to clean it. It is convenient to clean every corner of the room. When cleaning a large living room, plug the cord into an outlet installed on the wall, and push it around to absorb dust.

The vacuum cleaner is composed of a suction port, a motor, a rotor blade, a filter, a dust collector case, and an exhaust port. The operation process is as follows. The commutator motor rotates the rotor blade more than 10,000 times to make the inside vacuum and sucks in dust or debris through the inlet. Inhaled dust and debris is filtered out of the filter and air is exhausted through the exhaust vent.

The vacuum cleaner is a hand type suitable for dust collection on desks, shelves, clothes, etc., and it is possible to clean the floor due to its smaller weight than the hand type. There is a cylindrical floor type, which is widely used for home use due to its large capacity.

Upright vacuum cleaners, mainly used for cleaning carpets, floors, etc., are provided with a roll brush in the main body. The roll brush is rotated by a motor that operates during the operation of the vacuum cleaner. At this time, the roll brush adheres to the floor, shakes off the dust on the carpet, the floor, and the like, and the dust is absorbed by the air adsorption force. Since the roll brush is used to clean carpets and the like and is not used to clean floors and the like, there is a need for a structure capable of selectively using a roll brush.

4 shows a roll brush driving determining apparatus according to the prior art, and FIGS. 5A and 5B show an operating state of the roll brush driving determining apparatus shown in FIG. 4.

As shown in FIGS. 4 and 5A and 5B, the roll brush driving determining apparatus according to the related art inserts the motor shaft so that the motor shaft 410 installed in the brush body 500 of the vacuum cleaner (not shown) is inserted. A bracket 110 having a hole 111 formed therein, a first link 120 rotatably installed on the bracket 110, and a second rotatably installed between the bracket 110 and the first link 120. It includes a link 130, and an elastic member 140 for elastically supporting the second link (130).

The bracket 110 is installed in the brush body 500, and the first protrusion 115 and the second protrusion 116 are formed at the outer circumference of the motor shaft insertion hole 111. The bracket 110 is provided on the brush body 500 by having a first coupling part 112, a second coupling part 113, and a third coupling part 114.

In addition, the first link 120 transmits an external force, and a first shaft hole 121 inserted into the first protrusion 115 is formed at an intermediate portion thereof. The other end of the first link 120 is formed in a "L" shape is formed with a guide hole 122 having a guide portion 122a and a fixing portion 122b. Here, the guide portion 122a is formed of a relatively long vertical portion to guide the movement path of the third protrusion 134 of the second link 130, which will be described later, and the fixing portion 122b is formed of a relatively short horizontal portion. Thus, the third protrusion 134 is fixed. One end of the first link 120 is coupled to the footrest 124 is applied external force. The first link 120 has a first shaft hole 121 is inserted into the first protrusion 115 is rotatably coupled to the bracket (110).

In addition, the second link 130 rotates by an external force transmitted from the first link 120 to fix the belt 300 connected to the roll brush 200, and the front end of the second link 130. The second shaft hole 131 is inserted into the second protrusion 116 is formed. The third protrusion 134 is inserted into the guide hole 122 in the middle portion. At the other end, the belt catching part 130a coupled to the belt 300 is formed. At the end of the belt engaging portion 130a, a belt drop preventing plate 133 is formed to prevent the belt 300 from falling off. A fourth protrusion 139 is formed at the middle of the rear surface of the second link 130. The second link 130 has a second shaft hole 131 is inserted into the second projection 116, the third projection 134 is inserted into the guide hole 122 of the first link 120 to the bracket 110 ) And the first link 120 is rotatably installed. At this time, the end of the third protrusion 134 inserted into the guide hole 122 is finished by riveting so that the first link 120 does not fall off.

On the other hand, the elastic member 140 is to elastically support the second link 130, is inserted into the second protrusion 116, one end is coupled to the first protrusion 115 of the bracket 110, the other end It is installed to be coupled to the fourth protrusion 139 of the second link (130). The second link 130 is elastically supported by the elastic member 140 so that the roll brush 200 is constantly being forced to be switched from the rotational state to the non-rotational state.

The roll brush driving determining apparatus 100 configured as described above is coupled to the brush body 500 such that the bracket 110, in which the first link 120 and the second link 130 are rotatably installed, is fixedly coupled to the brush body 500, and the footrest 124 is fixed. ) Is exposed to the outside through the through hole 510 formed in the brush body 500. In addition, the motor shaft 410 protrudes out of the bracket 110 and is coupled to the belt 300.

In this state, when an external force is applied to the scaffold in the direction of the arrow as shown in FIG. 5A, the first link 120 coupled to the scaffold 124 is positioned at a predetermined distance from the motor shaft 410. The belt engaging portion 130a formed in the second link 130 coupled to the link 120 is positioned on the same line between the roll brush 200 and the motor shaft 410. At this time, the belt engaging portion 130a is in a state away from the belt 300, and thus the roll brush 200 is rotatable.

In addition, since the third protrusion 134 formed on the second link 130 is fixed to the fixing part 122b of the guide hole 122 formed on the first link 120, an external force is applied to the first link 120. The second link 130 remains fixed unless it is held.

On the other hand, when the external force is applied to the scaffold in the opposite direction as shown in Figure 5b, the first link 120 coupled to the scaffold 124 is rotated counterclockwise around the first projection 115, The second link 130 coupled to the first link 120 is rotated counterclockwise around the second protrusion 116, and the belt catching part 130a formed on the second link 130 is formed by the brush shaft. The second link 130 is stopped when positioned on a straight line connecting the 210 and the motor shaft 410. At this time, the brush shaft 210, the motor shaft 410 and the belt engaging portion 131a are in a straight line in order. Therefore, since the belt 300 is dropped from the motor shaft 410 and is connected between the belt catching part 130a and the roll brush 200, power is not transmitted to the roll brush 200, so that the roll brush 200 is Stop.

Then, since the third protrusion 134 formed on the second link 130 is fixed to the fixing part 122b of the guide hole 122 formed on the first link 120, an external force acts on the first link 120. If not, the second link 120 remains fixed.

However, in the conventional roll brush driving determining apparatus as described above, when the first link and the second link rotate clockwise or counterclockwise by the external force applied to the scaffold, the belt catch portion frequently contacts the belt, and the belt wears. Or damaged, the first shaft hole of the first link is inserted into the first projection of the bracket, there is a problem that the rotation of the second link is not smooth.

In addition, since the third projection of the second link is installed in the guide hole of the first link without a separate bearing member, there is a problem that smooth operation is not performed by friction when the first link and the second link rotate.

The present invention has been made in order to solve the problems of the prior art as described above, the technical problem of the present invention is to prevent the wear and damage of the belt generated during the rotation and non-rotation of the roll brush, the rotation of each link is smooth It is to provide a means that can be achieved.

The present invention for solving the above technical problem,

A motor shaft insertion hole into which a motor shaft to which a belt is connected is inserted is formed, and first and second protrusions are formed at the outer circumference of the motor shaft insertion hole, so that a guide hole is formed at the other end of the bracket installed in the brush body. A first shaft hole corresponding to the first protrusion is formed, and a first link rotatably installed on the bracket, and a second shaft hole installed at the front end thereof are formed on the front end thereof, and a third protrusion inserted into the guide hole at an intermediate portion thereof. The second link is formed, the belt engaging portion for fixing the belt at the other end is formed and the fourth projection is formed in the middle of the rear side so as to be rotatable between the bracket and the first link, one end is coupled to the first projection A roll brush driving crystal field provided on the second link such that the other end is coupled to the fourth protrusion and including an elastic member for elastically supporting the second link. In the belt locking portion, a first bearing member is installed to prevent wear and damage of the belt, and the second shaft hole is inserted into the second shaft hole to be installed inward to smoothly rotate the second link. It provides a roll brush drive determination device for an upright vacuum cleaner, characterized in that a second bearing member for mounting the support.

In addition, a bushing for preventing abrasion and smooth operation is inserted into the third protrusion inserted into the guide hole, and an anti-separation plate is installed at the end of the third protrusion to prevent separation of the bushing. .

The roll brush drive determining apparatus of the upright vacuum cleaner according to the present invention having such a feature rotates the roll brush by installing a separate bearing member on the belt engaging portion and the coupling portion of the first and second links and the bracket for fixing the belt. And when the non-rotation of the belt is prevented from being damaged by abrasion by friction with the belt engaging portion, the operation of the first and second links can be made smoothly.

Hereinafter, a roll brush driving determining apparatus of an upright vacuum cleaner according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an upright vacuum cleaner having a drive brush determination device according to a preferred embodiment of the present invention, and FIG. 2 shows a roll brush drive determination device according to a preferred embodiment of the present invention.

First, referring to Figure 1, the vacuum cleaner 1000 is equipped with a roll brush drive determination device according to a preferred embodiment of the present invention is a handle for moving the main body 1100, the vacuum cleaner 1000, the built-in motor, etc. 1200, an operation switch 1300 for operating the vacuum cleaner 1000, and a brush body 1400 for sucking dust and the like present on the floor. The brush body 1400 is provided with a scaffold 24 for operating the roll brush driving determining apparatus 10.

Referring to FIG. 2, the roll brush driving determining apparatus 10 according to an exemplary embodiment of the present invention includes a motor shaft insertion hole such that the motor shaft 41 installed in the brush body 1400 of the vacuum cleaner 1000 is inserted. The first link 20 rotatably installed on the bracket 11, the bracket 11, and the second link rotatably installed between the bracket 11 and the first link 20. 30, and an elastic member 40 for elastically supporting the second link (30).

The bracket 11 is installed in the brush body 1400, and the first protrusion 15 and the second protrusion 16 are formed at the outer circumference of the motor shaft insertion hole 11a. The bracket 11 is provided on the brush body 1400 having a first coupling part 12, a second coupling part 13, and a third coupling part 14.

In addition, the first link 20 transmits an external force, and a first shaft hole 21 inserted into the first protrusion 15 is formed at an intermediate portion thereof. The other end of the first link 20 is formed in a "L" shape is formed with a guide hole 22 having a guide portion 22a and a fixing portion 22b. Here, the guide portion 22a is formed of a relatively long vertical portion to guide the movement path of the third protrusion 34 of the second link 30 to be described later, and the fixing portion 22b is formed of a relatively short horizontal portion. Thus, the third protrusion 34 is fixed. One end of the first link 20 is coupled to the scaffold 24 is applied to the external force. The first link 20 has a first shaft hole 21 is inserted into the first protrusion 15 is rotatably coupled to the bracket (11).

In addition, the second link 30 is fixed by the external force transmitted from the first link 20 to fix the belt 60 connected to the roll brush 50, and the front end of the second link 30 In the second shaft hole 31 is formed. The second bearing hole 31a is installed in the second shaft hole 31, and the second protrusion 16 of the bracket 11 is inserted inside the second bearing member 31a. A third protrusion 34 inserted into the guide hole 22 is formed in the middle portion of the second link 30. The third protrusion 34 is provided with a bushing 36 for preventing abrasion and smooth operation. At the end of the third protrusion 34, a separation preventing plate 38 for preventing the separation of the bushing 36 is screwed. The other end of the front surface of the second link 30 is formed with a belt engaging portion 30a coupled to the belt 60. The belt locking portion 30a is provided with a first bearing member 32 for preventing abrasion and smooth rotation of the belt 60. Here, the first bearing member 32 satisfies at least one number. At the end of the belt engaging portion 30a, a belt drop prevention plate 33 for preventing the belt 60 from falling off is formed. A fourth protrusion 39 is formed in the middle of the rear surface of the second link 30.

In the second link 30, the second protrusion 16 is inserted into the second bearing member 31a installed in the second shaft hole 31, and the third protrusion 34 in which the bushing 36 is installed is formed in the second link 30. The first link 20 inserted into the guide hole 22 of the first link 20 is smoothly operated. At this time, separation of the bushing 36 and the first link 20 installed in the third protrusion 34 is prevented by the release preventing plate 38 screwed to the end of the third protrusion 34.

On the other hand, the elastic member 40 is for elastically supporting the second link 30, one end is coupled to the first protrusion 15 of the bracket 11, the other end of the fourth of the second link 30 It is installed on one end of the second link (30) installed on the second projection (16) to be coupled to the projection (39). The second link 30 is always under force by the elastic member 40 so that the roll brush 50 can be rotated in a non-rotating state from the rotating state.

3A and 3B illustrate an operating state of a roll brush driving determining apparatus according to a preferred embodiment of the present invention. FIG. 3A illustrates a rotation state of a roll brush, and FIG. 3B illustrates a non-rotation state of a roll brush. It is.

Referring to Figure 3a and 3b will be described the operation of the roll brush drive determination device of the upright vacuum cleaner according to a preferred embodiment of the present invention configured as described above are as follows.

In the roll brush driving determining apparatus 10 according to the preferred embodiment of the present invention, the bracket 11 having the first link 20 and the second link 30 rotatably provided includes a first coupling part 12 and a second coupling device. The footrest 24, which is fixedly coupled to the brush body 1400 by the coupling part 13 and the third coupling part 14, and installed at the other end of the first link 20, has a through hole formed in the brush body 1400. It is exposed to the outside through 1410. In addition, the motor shaft 70 protrudes out of the bracket 11 and is coupled to the belt 60.

First, as shown in FIG. 3A, when an external force is applied to the scaffold in the direction of the arrow, the first link 20 coupled to the scaffold 24 is clockwise around the first protrusion 15 of the bracket 11. It is rotated and positioned at a predetermined distance from the motor shaft 70. Then, the second link 30 in which the second shaft hole 31 is rotatably installed in the second protrusion 16 formed on the bracket 11 is also rotated in the clockwise direction according to the rotation of the first link 20. At this time, since the second projection 16 is inserted into the second bearing member 31a installed in the second shaft hole 31, the second link 30 is smoothly rotated by the second bearing member 31a. Is done.

In addition, the belt engaging portion 30a formed on the second link 30 coupled to the first link 20 is positioned on the same line between the roll brush 50 and the motor shaft 70. At this time, the first bearing member 32 installed in the belt catching portion 30a is in contact with the belt 60, and thus the first bearing member 32 when the roll brush 50 is rotated by the motor shaft 70. The belt 60 rotates as well.

In addition, since the third protrusion 34 formed on the second link 30 is fixed to the fixing portion 22b of the guide hole 22 formed on the first link 20, an external force is applied to the first link 20. The second link 30 remains fixed unless it is held. At this time, the third protrusion 34 guided to the fixing part 22b along the guide part 22a of the guide hole 22 is smoothly guided while sliding by the bushing 36, and the bushing 36 and the first The link 20 is prevented from being separated by the release preventing jaw 38 screwed to the end of the third protrusion 34.

When the third protrusion 34 of the second link 30 is fixed to the fixing part 22b of the guide hole 22 formed in the first link 20, one end of the second link 30 may be formed. The roll brush 50 is coupled to the first protrusion 15 and the elastic member 40 installed at one end of the second link 30 is contracted so that the other end is coupled to the fourth protrusion 39 of the second link 30. The second link 30 is elastically supported by the elastic member 40 so that the rotation can be rotated in a non-rotating state.

Meanwhile, as shown in FIG. 5B, when external force is applied to the scaffold in the direction opposite to the arrow, the first link 20 coupled with the scaffold 24 is counterclockwise around the first protrusion 15 of the bracket 11. Is rotated in a direction and positioned at a predetermined distance from the motor shaft 70.

In addition, the second link 30 that is elastically supported by the elastic member 40 so that the roll brush 50 is rotated in the non-rotating state from the rotating state is formed of the bracket 11 by the elasticity of the elastic member 40. The second projection 16 is rotated counterclockwise according to the rotation of the first link (20).

At this time, the second link 30 is smoothly rotated by the second bearing member 31a of the second shaft hole 31 in which the second protrusion 16 is inserted, and the belt is formed on the second link 30. The second link 30 is stopped when the portion 30a is positioned on a straight line connecting the brush shaft 52 and the motor shaft 70. At this time, the brush shaft 52, the motor shaft 70 and the belt engaging portion 30a are located in a straight line in order. Therefore, since the belt 60 is removed from the motor shaft 70 and is connected between the belt catching portion 30a and the roll brush 50, power is not transmitted to the roll brush 50, so that the roll brush 50 is In this case, the rotation of the first bearing member 32 is also stopped. At this time, the belt 60 caught by the belt catching portion 30a is prevented from being separated by the belt drop preventing plate 33 formed on the belt catching portion 30a.

In addition, since the third protrusion 34 formed on the second link 30 is fixed to the fixing portion 22b of the guide hole 22 formed on the first link 20, an external force is applied to the first link 20. The second link 30 remains fixed unless it is held. At this time, the third protrusion 34 guided to the fixing part 22b along the guide part 22a of the guide hole 22 is smoothly operated while sliding by the bushing 36, and the bushing 36 and the first The one link 20 is prevented from being separated by the separation prevention jaw 38 screwed to the end of the third protrusion 34.

As described above, the roll brush driving determining apparatus of the upright vacuum cleaner according to the present invention is provided with a belt bearing part and a bracket and a separate bearing member at the coupling part of each link, so that the belt is rotated and the belt is not rotated. Is prevented from being worn and broken by friction with the belt catching portion, and the effect of providing smooth operation of each link is provided.

The present invention has been described above by the embodiments, but the present invention is not limited to the above-described embodiments, and those skilled in the art without departing from the gist of the present invention claimed in the claims. Anyone can make a variety of variations.

1 is a perspective view of an upright vacuum cleaner having a driving brush driving device according to a preferred embodiment of the present invention;

2 is an exploded perspective view of a roll brush driving determining apparatus according to a preferred embodiment of the present invention;

3A and 3B illustrate an operating state of a roll brush driving determining apparatus according to a first preferred embodiment of the present invention. FIG. 3A is a view showing a rotation state of a roll brush, and FIG. 3B is a non-rotating state of a roll brush. Drawing,

4 is an exploded perspective view of a roll brush driving determining apparatus according to the prior art, and

5A and 5B are cross-sectional views of an operating state of the roll brush driving determining apparatus shown in FIG.

<Explanation of Signs of Major Parts of Drawings>

10: roll brush drive coupling device 11: bracket

11a: Motor shaft insertion hole 15,16: 1st and 2nd protrusion

20: first link 21: first shaft hole

22: guide hole 30: second link

30a: belt engaging portion 31: second shaft hole

31a: second bearing member 32: first bearing member

34: third projection 36: bushing

38: departure preventing plate 39: fourth projection

40: elastic member 60: belt

70: motor shaft 1400: brush body

Claims (2)

The motor shaft insertion hole 11a into which the motor shaft 70 to which the belt 60 is connected is inserted is formed, and the first and second protrusions 15 and 16 are formed at the outer circumference of the motor shaft insertion hole 11a. A bracket 11 installed in the brush body 1400, a guide hole 22 is formed at the other end, and a first shaft hole 21 corresponding to the first protrusion 15 is formed at an intermediate portion of the bracket 11. A first link 20 rotatably installed at the first link 20, a second shaft hole 31 installed at the second protrusion 15 at one end of the front surface thereof, and a third protrusion inserted into the guide hole 22 at an intermediate portion thereof. 34 is formed, and a belt engaging portion 30a for fixing the belt 60 is formed at the other end, and a fourth protrusion 39 is formed at the middle of the rear surface, so that the bracket 11 and the first link 20 are formed. A second link 30 rotatably installed between the second link 30 and one end of which is coupled to the first protrusion 15 and the other end of which is coupled to the fourth protrusion 39. link( In the roll brush drive determination device 10 comprising an elastic member 40 for elastically supporting 30, The belt engaging portion 30a is provided with a first bearing member 32 for preventing wear and damage of the belt 60, and the second projection 16 is provided in the second shaft hole 31 inward. The roll brush driving determination device of the upright vacuum cleaner, characterized in that the second bearing member (31a) is inserted and installed to allow the second link (30) to rotate smoothly. The bushing 36 for preventing abrasion and smooth operation is inserted into the third protrusion 34 inserted into the guide hole 22. The bushing 36 is installed at the end of the third protrusion 34. An apparatus for determining roll brush driving of an upright vacuum cleaner, characterized in that a departure preventing plate (38) is provided for preventing the departure of the (36).