KR20050097835A - Vacuum cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner, comprising: a vacuum cleaner body including a vacuum source for sucking dust on a surface to be cleaned and a dust collecting container for holding the sucked dust; a suction body connected to communicate with the vacuum cleaner body; One of the rotating brush installed, the driving pulley attached to the rotating brush, the idle pulley positioned adjacent to the driving pulley, the driving motor driving the rotating brush, the driving pulley or the idle pulley and the driving A belt guide unit having a guide member which is moved between a belt positioned on one axis of the motor and a first position connecting the belt to the drive pulley or a second position connecting the belt to the idle pulley; Guide member for moving the guide member to any one of the first position and the second position It characterized in that it comprises a control device.

Description

Vacuum cleaner {Vacuum cleaner}

The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner having a power control device of a rotary brush.

Typically, a vacuum cleaner has a vacuum source built in, and is a device for cleaning the surface to be cleaned by sucking the dirt using the suction force when the vacuum source is driven. In recent years, vacuum cleaners have been released in the form of further comprising a rotary brush for cleaning the surface of the surface to be cleaned, which is difficult to clean simply by simply suctioning the surface of the surface to be cleaned. However, cleaning using the above-described rotating drum is not always necessary. For example, to prevent noise generated by friction between the rotating brush and the surface to be cleaned, or to clean the surface to be damaged by the friction of the rotating brush, driving of the rotating brush becomes unnecessary. . In this case, stop the driving of the rotary brush, fix the cleaner body, and use the extension hose or accessories for cleaning. Therefore, in recent years, interest in vacuum cleaners for selectively controlling the driving of the rotating brush according to the state of the surface to be cleaned or the cleaning environment is increasing. The invention disclosed in US Pat. No. 6,044,520 discloses a vacuum cleaner for controlling the driving of such a rotating brush. However, the present invention is very complicated in structure, and the volume of the vacuum cleaner body becomes large, resulting in a problem that leads to an increase in production cost.

The present invention has been invented to solve the above problems, and an object of the present invention is to provide a vacuum cleaner having an improved structure to easily control the driving of the rotary brush.

In order to achieve the above object, the present invention provides a vacuum cleaner comprising a vacuum source for sucking dust on a surface to be cleaned and a dust collecting container for holding the sucked dust; A suction unit main body connected to communicate with the cleaner main body; A rotary brush installed in the suction unit body; A drive pulley attached to the rotating brush; An idle pulley positioned adjacent to the drive pulley; A drive motor for driving the rotary brush; A belt positioned on one of the drive pulley and the idle pulley and the drive motor; A belt guide unit having a guide member which is moved between a first position connecting the belt to the drive pulley or a second position connecting the belt to the idle pulley; And a guide member control device for moving the guide member to any one of the first position and the second position.

The belt guide unit may further include a spring for directing the guide member to the first position.

In addition, the guide member control device is rotatably installed in the suction unit main body, the rotation of the guide member to any one selected from the first position or the second position by contact with the guide member during the rotation. It is to be a rotary knob. The rotary knob includes a handle portion and a semi-circular cam member that is exposed to the outside of the suction unit body and rotatably installed, and the cam member contacts the guide member when the handle portion is in a predetermined position. And move the guide member to the second position.

The guide member control device may be a button unit which is provided in the suction unit main body and moves the guide member to one of the first position and the second position by a button operation.

The button unit may include a button exposed to the outside of the suction unit main body; A pressing member which is in contact with a lower part of the button and moves in a pressing direction of the button in association with a pressing operation of the button; A return spring in contact with the pressing member; And a lever positioned at a lower end of the pressing member and fixed at the other end to the guide member. Therefore, the lever is linked to the lower movement of the pressing member, characterized in that for moving the guide member to any one of the first position or the second position.

The cleaner body is installed to be inclined with the suction unit body, and a lower portion thereof has a cam member, and the guide member is brought into contact with the guide member when the cleaner body is in a substantially upright position. It is characterized by suppressing the movement of.

To this end, the guide member may include: a first member whose one end restrains the belt and is moved to any one of the first position and the second position, and the other end is fixed to the suction part main body by a screw; It is connected to the first member and extends a predetermined length toward the cleaner body, and when the cleaner body is in a substantially upright position, it contacts the lower cam member of the cleaner body to move the first member to the first position. It is to include the second member to suppress.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows an upright type vacuum cleaner 100 of the vacuum cleaner according to the present invention, Figure 2 is a bottom view of Figure 1 excluding the belt, Figure 3 is a view of the D portion including the belt from a different angle. 4 shows a detailed view of the belt guide unit. As shown in the drawing, the vacuum cleaner 100 includes a suction part 10 which sucks dust to be cleaned on the bottom surface, a cleaner body 20 which is installed to be inclined to the suction part 10, and a rear end of the suction part 10. A wheel 26 positioned at the side to move the vacuum cleaner, a main body fixing / release lever 30 formed at the bottom of the main body 20, and a handle 24 connected to the upper part of the main body 20.

Referring to FIG. 1, the cleaner body 20 includes a vacuum source (not shown) for sucking dust on the surface to be cleaned and a dust collecting container (not shown) for storing the sucked dust therein, and a rear pivot 29 It is attached to the suction unit 10 in a tiltable manner. The cleaner body 20 and the suction unit 10 are connected to communicate. Therefore, a suction force is generated when driving the vacuum source (not shown), and the suction force causes dirt to be cleaned to the dust collecting container (not shown) of the cleaner body 20 through the suction part 10 together with the surrounding air. By entering, cleaning of the surface to be cleaned is performed.

And the lower end of the cleaner body 20, the main body fixing / release lever 30 for releasing the fixing so that the cleaner body 20 is fixed or inclined to an approximately upright position with respect to the suction unit (10) Is formed. Therefore, the user releases the fixing of the cleaner body 20 by pressing the body fixing / release lever 30 of the cleaner body 20 using hands or feet to clean, and then operates the vacuum cleaner 100. To work. Then, when cleaning or cleaning using an extension hose and other accessories, as shown in FIG. 2, the cleaner body 20 may be fixed in a substantially vertical position.

The lower part of the cleaner body 20 has a cam member 22 (see FIG. 7), which will be described later.

1 and 2, the suction part 10 includes a suction part main body 14, a rotating brush 12, a height adjusting knob 27 for adjusting the height of the suction part 10, and a driving pulley. (42), idle idle pulley (44), belt (46), belt guide unit (50) and rotary knob.

The rotary brush 12 is rotatably installed on the suction unit body 14, and a plurality of brush members (not shown) are planted or fitted on the outer circumferential surface thereof. The rotary brush 12 is rotated to receive power from a drive motor (not shown) mounted on the cleaner body 20 to shake off dust or dirt on a surface to be cleaned, in particular a carpet.

The drive pulley 42 is attached to and fixed to the rotary brush 12 to drive the rotary brush 12 when the belt 46 is positioned, and the idle pulley 44 is positioned adjacent to the drive pulley 42. It is configured to be idle with respect to the rotary brush 12. In addition, the belt 46 (refer to FIG. 3) connects either the drive pulley 42 or the idle pulley 44 with the shaft 28 of the drive motor (not shown). Therefore, when the belt 46 is located in the driving pulley 42, the rotary brush 12 that receives the power of the driving motor (not shown) rotates.

2 to 4, the belt guide unit 50 restrains the belt 46 to connect the belt 46 to the driving pulley 42 (the dotted line in FIG. 2). A guide member 52 and a spring 56 which are moved between a second position B (solid line in FIG. 2) to be connected to the idle pulley 44.

As shown in FIGS. 3 and 4, the guide member 52 has a first member 53 and a second member 54, the first member 53 being positioned above the belt 46. One end is restrained by the belt 46 and is moved to the first position A or the second position B, and the other end is rotatably fixed to the suction unit body 14 by a screw 55. . The second member 54 is connected to the first member 53 to extend a predetermined length toward the cleaner body 20.

The spring 56 is first installed before the guide member 52 is fixedly installed on the suction unit body 14, thereby positioning the guide member 52 in a first position so that the belt 46 is always connected to the drive pulley 42. Orient towards (A).

The guide member controller controls the position movement of the guide member 52 to the first position A and the second position B. In this embodiment, the handle 63 and the cam member 64 are controlled. Rotating knobs are used. The handle part 63 is exposed to the outside of the suction part main body 14 and is rotatably installed to adjust the selection position by driving / non-driving. And the cam member 64 is connected to the handle portion 63 is formed in the suction unit body 14, and has a semi-circular shape.

When the handle portion 63 is selected in the driving position, the cam member 64 does not come into contact with the guide member 52, and the guide member 52 is positioned at the first position A by the spring 56. (Dotted line in Fig. 2). Accordingly, the belt 46 constrained by the first member 53 of the guide member 52 is wound around the driving pulley 42, and the rotating brush 12 is driven. And, when the handle portion 64 is selected in the non-driven position, the cam member 64 to rotate with the handle portion 63 interferes with the first member 53 of the guide member 52, The guide member 52 is moved to the 2nd position B (solid line display in FIG. 2). Therefore, the belt 46 restrained by the first member 53 of the guide member 52 is wound around the non-driven pulley 44, so that the rotary brush 12 does not drive.

Hereinafter, the operation relationship of the first embodiment of the present invention having the above structure will be described in detail with reference to the accompanying drawings.

5 to 7 show a state when the cleaner body 20 is released from the suction unit 10, that is, when the cleaner body 20 is not in an approximately upright position with respect to the suction unit 10. 5 shows a bottom view when the handle 63 is in the drive position, FIG. 6 shows a bottom view when the handle 63 is in the non-driven position, and FIG. 8 shows a cleaner body 20 and a guide member ( 52 is a view for explaining the positional relationship.

Referring to FIG. 5, when the handle portion 63 is selected as the driving position, the guide member 52 does not come into contact with the cam member 64, and the first position A and FIG. 2 are provided by the spring 56. Position). Thus, the belt 46 wound around the drive motor shaft 28 and constrained to the first member 53 of the guide member 52 is wound onto the drive pulley 42, so that the rotary brush 12 is driven. .

Referring to FIG. 6, when the handle portion 63 is selected as the non-driven position, the first member 53 of the guide member 52 interferes with the cam member 64, and the guide member 52 is forced. To the second position (B, see FIG. 2). Thus, the belt 46 wound on the drive motor shaft 28 and constrained to the first member 53 of the guide member 52 is wound onto the idle pulley 44, so that the rotary brush 12 is driven. You will not.

7 is a view illustrating an operation relationship between the cleaner body 20 and the guide member 52. The cleaner body cam member 22 is installed at the lower portion of the cleaner body to rotate in conjunction with the rotation of the cleaner body 20, and a groove 22a of a predetermined distance is formed circumferentially. The groove 22a has a predetermined width C. As shown, when the cleaner main body 20 is rotated inclined by being released from the suction unit 10, that is, when the cleaner body 20 is in a position other than an approximately upright position with respect to the suction unit 10, The second member 54 faces the groove 22a of the cleaner body cam member 22. As described above, the guide member 52 is moved to the first position (A, see Fig. 2) by the spring 56, wherein the second member 54 of the guide member 52 is the groove ( Since it moves between the predetermined width (C) of 22a, the guide member 52 is not interfered with the cleaner body cam member 22. Accordingly, the guide member 52 moves to the first position A and the second position B as shown in FIGS. 5 and 6 according to the driving / non-driven position of the handle 63, and thus the guide member 52. The belt 46 constrained to the coil 46 is wound around the driving pulley 42 or the idle pulley 44 according to the driving / non-drive selection position of the handle 63, and the rotating brush 12 is driven / undriven. .

Therefore, when releasing the fixing in the upright direction of the cleaner body 20 for cleaning the floor and using the cleaner, the rotary brush 12 is automatically driven / non-driven according to the selected position of the drive / non-drive of the handle 63. As a result, the operator can easily operate the device, and the structure thereof is simple, so that the weight of the device can be reduced.

8 and 9 illustrate a state when the cleaner body 20 is fixed to the suction unit 10 in an approximately upright position, and FIG. 8 illustrates an operation relationship between the cleaner body 20 and the guide member 52. 9 is a bottom view of FIG. 1 when the handle portion 63 is in the non-driven position.

Referring to FIG. 8 in comparison with FIG. 7, when the cleaner body 20 is in a substantially upright position, the guide member 52 is moved to the first position A by interference with the cleaner body cam member 22. Limited. That is, since the cleaner body cam member 22 is rotated counterclockwise in association with the cleaner body 20, the second member 54 of the guide member 52 is a wall surface of the cleaner body cam member 22. Face 22b. Therefore, since the second member 54 of the guide member 52 is in contact with the wall surface 22b of the cleaner body cam member 22, the guide member 52 can move to the first position A. FIG. In the second position B (see FIG. 2). As a result, the belt 46 constrained by the guide member 52 is wound around the idle pulley 44, so that the rotary brush 12 is not driven.

Therefore, as shown in FIG. 9, even when the handle portion 63 is selected as a drive, the guide member 52 is caused by interference between the wall surface 22b of the cleaner body cam member 22 and the second member 54. Therefore, it is located in the second position (B). As a result, the belt 46 constrained by the first member 53 of the guide member 52 is wound around the idle pulley 44, so that the rotary brush 12 does not drive. Then, when the handle portion 63 is selected to be non-driven, the cam member 64 of the rotary knob and the first member 53 of the guide member 52 and the wall surface of the cleaner body cam member 22 Due to the interference between 22b) and the second member 54 of the guide member 52, the guide member 52 is positioned at the second position B as in FIG. The belt constrained by the first member 53 of the guide member 52 is wound around the idle pulley 44, so that the rotary brush 12 is not driven.

Accordingly, when the cleaner is stored after cleaning the floor, or when the cleaning operation is performed by using an extension hose and various accessories, the grip unit 63 is fixed to the suction unit 10 in an almost upright position. The rotary brush 12 does not drive regardless of the selected position of driving / non-driving). Therefore, even when the user accidentally turns on the power switch of the driving motor, the rotary brush does not drive when the driver is in the substantially upright position, so that the carpet or the floor caused by sudden rotation of the rotary brush is not damaged.

10 to 12 show a second embodiment of the present invention. The configuration and operation of the second embodiment will be described with reference to the accompanying drawings. Here, the same reference numerals are used for the same components that perform the same operations as the previous embodiment, and detailed description thereof will be omitted.

As in the first embodiment, in the present embodiment, when the cleaner main body 20 is fixed at the substantially upright position, the second position B may be caused by the interference of the guide member 52 and the cleaner main body cam member 22. 2), and thus the belt 46 restrained by the guide member 52 is always wound around the idle pulley 44, so that the rotary brush 12 is not operated. In the first embodiment, when the cleaner body 20 is located at a position other than the actual upright position, the guide member 52 is moved in accordance with the driving / non-drive selection position of the knob 63 of the rotary knob. The belt 46 constrained by the guide member 52 is wound around the driving pulley 42 or the idle pulley 44, but in the present embodiment, the guide member 52 is moved by the button unit 70. .

As shown, the button unit 70 is in contact with a button 72 exposed outside the suction unit main body 14 and a lower portion of the button 72, in conjunction with the pressing operation of the button 72. The pressing member 73 which moves in the pushing direction of the button 72, the return spring 74 which contacts the lower part of the pressing member, and the return spring 74 are located, and presses when the pressing member is in a predetermined position. A pressing member stop spring 75 which prevents further flow in the direction, and is positioned at the lower end of the pressing member 73, one end of which is linked to the lower movement of the pressing member 73, the other end of the belt guide unit A lever 76 for moving the guide member 52 of the 50 in the direction of the idle pulley 44, the button 72, the pressing member 73, the return spring 74, the stop spring 75, and And a housing 77 for receiving the lever.

When the cleaner body 20 is in a position other than the substantially upright position, the guide member 52 is positioned at the first position A (see FIG. 2) by the spring 56, and the guide member 52 is located. The belt 46 constrained by the first member 53 is wound around the driving pulley 42, so that the rotary brush 12 is driven. Then, when the button 72 is pressed to deactivate the rotary brush 12, the pressing member 73 linked with the button 72 moves in the lower pressing direction of the button 72. The lever 76 is rotated by the shaft 78. As the pressing member 73 moves, one end 76a of the lever 76 moves the pressing member 73 in the downward movement direction, thereby guiding the guide. The other end 76b of the lever 76 connected to the member 52 moves the guide member 52 to the second position B (see FIG. 2) (solid line position in FIG. 10). By movement of the guide member 52, the belt 46 constrained to the first member 53 of the guide member 52 is wound around the idle pulley 44, and eventually the rotary brush 12 is driven. You will not.

When the button 72 is pressed again, the pressing member 73 is returned to the original position by the return spring 56, and the lever 76 is returned to the original position by the return of the pressing member 73. It will return to the position. Accordingly, the guide member 52 connected to the other end 76b of the lever 76 is again positioned at the first position A (see FIG. 2) (dotted line position in FIG. 10), and the belt 46 is driven by a driving pulley ( Wound around 42, the rotary brush 12 is driven.

Therefore, according to the button unit 70 which is the guide member control apparatus according to the second embodiment of the present invention, when the cleaner body 20 is released and is in a position other than the actual upright position, the rotary brush 12 Since the drive is driven / de-driven by a simple button operation, the operator can easily operate.

As described above, according to the vacuum cleaner according to the present invention, since the driving of the rotary brush can be easily controlled by a very simple guide member control device, the operation convenience and the size and weight of the vacuum cleaner can be achieved. Will be.

While the invention has been shown and described in connection with preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. That is, those skilled in the art to which the present invention pertains will appreciate that many changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

1 is a perspective view of a vacuum cleaner according to a first embodiment of the present invention,

2 is a bottom view of FIG. 1 excluding the lower case of the suction unit body;

3 is a perspective view from different angles of part D of FIG. 2 including a belt;

4 is an exploded view of the belt guide unit of FIG.

5 is a bottom view of FIG. 1 excluding the lower case when the selection knob of the guide member control device is in the drive position;

Fig. 6 is a bottom view of Fig. 1 when the selection knob of the guide member control device is in the non-driven position;

7 is a view showing an operating state of the cleaner body and the guide member;

8 is a view showing an operating state of the cleaner body and the guide member when the main body is fixed from the suction unit;

9 is a bottom view when the selection knob is in the drive position in the FIG. 8 state;

10 is a view showing a guide member control apparatus according to a second embodiment of the present invention;

11 and 12 are detailed views of the button unit of FIG. 10.

<Description of Major Symbols in Drawing>

10. Suction body 12. Rotary brush

20. Vacuum cleaner main body 22. Vacuum cleaner main body

28. Drive motor shaft 30. Main body lock / release lever

42. Driven pulley 44. Idling pulley

46. Belt 50. Belt guide unit

52. Guide member 53. First member

54. Second member 56. Spring

63. Handle 64. Cam member

70. Button unit 72. Button

76. Lever

Claims (9)

A vacuum cleaner body including a vacuum source for sucking dust on the surface to be cleaned and a dust collecting container for holding the sucked dust; A suction unit main body connected to communicate with the cleaner main body; A rotary brush installed in the suction unit body; A drive pulley attached to the rotating brush; An idle pulley positioned adjacent to the drive pulley; A drive motor for driving the rotary brush; A belt positioned on one of the drive pulley and the idle pulley and the drive motor; A belt guide unit having a guide member which is moved between a first position connecting the belt to the drive pulley and a second position connecting the belt to the idle pulley; And a guide member control device for moving the guide member to any one of the first position and the second position. The method of claim 1, wherein the belt guide unit, And a spring for directing the guide member to the first position. According to claim 2, The guide member control device, And a rotary knob rotatably installed on the suction part main body to move the guide member to any one selected from a first position and a second position by contact with the guide member during rotation thereof. vacuum cleaner. The method of claim 3, wherein the rotary knob, It is provided with a handle portion and a semi-circular cam member is installed so as to be exposed to the outside of the suction unit body, rotatable, The cam member is in contact with the guide member when the handle portion is in a predetermined position, the vacuum cleaner, characterized in that for moving the guide member to the second position. According to claim 2, The guide member control device, And a button unit provided in the suction part main body to move the guide member to one of the first position and the second position by a button operation. The method of claim 5, wherein the button unit, A button exposed to the outside of the suction unit body; A pressing member which is in contact with a lower part of the button and moves in a pressing direction of the button in association with a pressing operation of the button; A return spring in contact with the pressing member; And A lever positioned at a lower end of the pressing member and the other end fixed to the guide member; The lever is linked to the lower movement of the pressing member, the vacuum cleaner, characterized in that for moving the position to any one of the first position or the second position. The method of claim 6, wherein the button unit, A stop spring positioned on the return spring to prevent further flow in the pushing direction when the pressing member is in a predetermined position; And a housing surrounding at least the return spring and the stop spring. The method according to any one of claims 1 to 7, The vacuum cleaner body is installed so as to be inclined with the suction unit body, the vacuum cleaner, characterized in that in contact with the guide member when the cleaner body is in an upright position, the guide member to suppress the movement to the first position vacuum cleaner. The method of claim 8, wherein the guide member, A first member whose one end restrains the belt and is moved to any one of the first position and the second position, and the other end is fixed to the suction part body by a screw; It is connected to the first member and is provided to extend a predetermined length toward the cleaner body, the contact with the lower cam member of the cleaner body when the cleaner body is in an upright position, to suppress the movement of the first member to the first position Vacuum cleaner comprising a; second member.