KR20230086156A - Cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner, comprising an anti-rotation assembly for selectively fixing a first rotating member for rotating a main body around a first rotating shaft and a second rotating member for rotating the main body around a second rotating shaft, The prevention assembly is rotatably coupled to the locking groove formed in the first rotating member and the second rotating member, extends in the gravitational direction, and when the angle between the second rotating shaft and the ground is the first angle, at least a portion is inserted into the locking groove and the first 2, including a fixing member that is not inserted into the locking groove when the angle between the rotating shaft and the ground is the second angle, the fixing member extends in the direction of gravity and freely rotates, so that the angle between the second rotating shaft and the ground is a predetermined angle When the first angle is greater than the first angle, the fixing member is caught in the locking groove to block rolling, making the vacuum cleaner easy to operate by yawing, and when the angle between the second rotating shaft and the ground is a second angle smaller than the predetermined angle, the fixing member is caught. The present invention relates to a vacuum cleaner capable of securing straightness of the cleaner by suppressing yawing as much as possible since rolling is prioritized over yawing without being inserted into a groove.

Description

Cleaner {Cleaner}

The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner that can be easily operated.

BACKGROUND ART In general, a vacuum cleaner is a home appliance that sucks up small garbage or dust by sucking air using electricity and fills a dust bin in the product, and is commonly referred to as a vacuum cleaner.

Such cleaners may be classified into manual cleaners for cleaning while a user directly moves the cleaner, and automatic cleaners for performing cleaning while driving by itself. Manual cleaners may be classified into canister-type cleaners, upright cleaners, handheld cleaners, and stick-type cleaners according to the shape of the cleaner.

In household cleaners, canister-type vacuum cleaners have been widely used in the past, but recently, handheld vacuum cleaners and stick vacuum cleaners, which provide convenience in use by integrally providing a dust bin and a cleaner body, have been widely used.

The main body of the canister type vacuum cleaner is connected to the intake by a rubber hose or pipe, and in some cases, a brush can be inserted into the intake.

The Hand Vacuum Cleaner maximizes portability and is light in weight, but has a short length, so the cleaning area may be limited while sitting. Thus, it is used to clean localized areas, such as on a desk or sofa, or in a car. The handheld vacuum cleaner can be used while standing, so it is possible to clean without bending down. Therefore, it is advantageous to clean while moving a large area.

The cleaner head may rotate around a plurality of axes for steering. Hereinafter, a plurality of axes are defined by assuming that the forward direction of the cleaner head is forward. Rolling refers to rotation of the left and right ends up and down around the front and rear axis of the cleaner head. Pitching refers to rotation of the front and rear ends up and down around the left and right axis of the cleaner head. Yawing refers to rotation of the left and right ends back and forth around the vertical axis.

As Prior Document 1, Korean Patent Registration No. 10-1814568 is proposed. Prior Document 1 relates to a cleaner head for a vacuum cleaner. Prior Document 1 has a first debris opening and a second debris opening disposed above the first debris opening. Accordingly, the dust swept by the agitator is sucked into the cleaner body through the first debris opening or the second debris opening. According to Prior Document 1, a pitching axis and a yawing axis are disposed between the cleaner head and the extension pipe. The cleaner body may rotate around a pitching axis to change its height, and rotate around a yawing axis to change its position in a left-right direction.

In general, for left-right direction steering, the cleaner head rotates either by rolling or yawing. Prior Document 1 performs yawing rather than rolling, and has the advantage of good maneuverability when the cleaner head performs yawing, but has a disadvantage of poor straightness.

The cleaner head according to Prior Document 1 does not have a structure that resists movement on a yaw axis. Therefore, when the floor surface is irregular, the cleaner head may often shake, and as the cleaner head shakes, the cleaner does not go straight and turns left or right. Therefore, there is a problem in that the user has to perform unnecessary manipulations to make the vacuum cleaner move straight.

Even, when the main body of the cleaner according to Prior Document 1 is laid down as much as possible, the above problem becomes more severe. When the angle between the yaw axis and the ground is low by standing the body of the cleaner, the cleaner can be moved forward to some extent even if the cleaner head shakes due to the weight of the cleaner body. However, as the angle between the yaw axis and the ground is increased by laying down the main body of the cleaner, even if the cleaner head shakes even slightly, the cleaner head shakes severely around the yaw axis, which is very inconvenient when cleaning narrow and low gaps. there was.

Prior Document 2 suggests US Patent Publication No. 2007-0174994. Prior Document 2 is an invention related to a cleaner head of a canister cleaner, and discloses a cleaner head having a rolling function and a pitching function. According to Prior Document 2, the present invention relates to a cleaner in which a cleaner head can be fixed while being folded around a pitching axis and mounted on a cleaner body, and cleaning can be performed by unfolding the cleaner head.

However, prior art 2 has a structure in which the cleaner head is folded and fixed when the cleaned cleaner is placed, and the cleaner head is unfolded and fixed when cleaning is desired, and a structure for selectively limiting rolling or pitching of the cleaner in use is provided. It is not disclosed, and since the cleaner head only rolls, not yawing, apart from the advantage of excellent straightness, there is a disadvantage of poor manipulability.

Korean Registered Patent Publication No. 10-1814568 (2017.12.27.) US Patent Publication No. 2007-0174994 (2007.08.02.)

An object to be solved by the present invention is a vacuum cleaner equipped with a cleaning module that rotates and rotates around an arbitrary rotation axis, has high maneuverability through yawing rather than rolling when cleaning a normal area, and can clean low and narrow gaps. It is to provide a vacuum cleaner having high straightness by preventing arbitrary yawing when the present invention is present.

Another problem to be solved by the present invention is to provide a vacuum cleaner capable of easily cleaning a lower and narrower gap by bringing the cleaner body into close contact with the ground as much as possible when cleaning a low and narrow gap.

Another problem to be solved by the present invention is to provide a vacuum cleaner that prevents random shaking while cleaning a low and narrow gap and quickly restores the vacuum cleaner to its original position after cleaning to secure straightness.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a cleaner according to an embodiment of the present invention includes a cleaning module that sucks external air, a main body that provides a suction force to the cleaning module, and a first disposed between the cleaning module and the main body and disposed in one direction. A first rotation member for rotating the body around a rotation axis, a second rotation member for rotating the body around a second rotation axis disposed between the first rotation member and the body and disposed in a direction crossing the first rotation axis, It includes an anti-rotation assembly that selectively fixes the first rotation member and the second rotation member. At this time, the anti-rotation assembly is rotatably coupled to the locking groove formed in the first rotating member and the second rotating member, extends in the direction of gravity, and when the angle between the second rotating shaft and the ground is the first angle, at least a portion of the locking groove It is inserted and includes a fixing member that is not inserted into the locking groove when the angle between the second rotating shaft and the ground is the second angle.

The second rotation shaft may pass through the cleaning module and the main body.

The fixing member may extend in a circumferential direction around the second rotation shaft.

The rotating member includes a hollow in which an air flow path can be disposed, and the locking groove may be disposed outside the hollow in a radial direction.

The anti-rotation assembly may include a stopper disposed on the second rotation member and a stopper disposed on the first rotation member and engaging the stopper when the second rotation member is rotated to a limit angle. At this time, the stopper is disposed on the fixing member and may extend in a direction crossing the extending direction of the fixing member.

The cleaner may further include a third rotational member having a front end rotatably coupled to the cleaning module and rotating about a third rotational shaft intersecting both the first rotational shaft and the second rotational shaft. At this time, the front end of the third rotation member may be rotatably coupled to the rear end of the first rotation member, and the front end of the second rotation member may be rotatably coupled to the rear end of the third rotation member.

The first axis of rotation is a pitching axis that rotates the main body up and down with respect to the cleaning module, the second axis of rotation is a rolling axis that rotates the main body around the moving direction of the cleaning module, and the third axis of rotation is the axis that rotates the main body left and right with respect to the cleaning module. It may be a yawing axis that rotates.

The anti-rotation assembly may further include an elastic member providing a restoring force in an opposite direction when the third rotation member rotates in one direction. In this case, the elastic member may be a torsion spring fixed to the first rotational member and arranged around the third rotational shaft as a center of rotation.

In order to achieve the above object, a vacuum cleaner according to an embodiment of the present invention includes a cleaning module for sucking in external air, a rolling shaft passing through the cleaning module and pitching a connection point with the cleaning module as a pitching shaft, and a rolling shaft. It includes a main body disposed on the cleaning module to provide a suction force to the cleaning module and to be able to roll around a rolling axis, and an anti-rotation assembly disposed between the cleaning module and the main body to selectively limit rolling of the main body. At this time, the anti-rotation assembly includes a fixing member disposed in the direction of gravity in the longitudinal direction, and a locking groove into which the fixing member is inserted when the angle between the rolling shaft and the ground is equal to or greater than a predetermined angle.

The fixing member may be rotatably disposed about a rotational axis disposed parallel to the pitching axis.

The cleaner may include a yawing axis disposed between the pitching axis and the rolling axis and perpendicular to both the pitching axis and the rolling axis.

The anti-rotation assembly may include a locking jaw disposed outside the rolling shaft in a radial direction, and a stopper disposed in a circumferential direction of the rolling shaft from the locking jaw and caught on the locking jaw.

Details of other embodiments are included in the detailed description and drawings.

According to the vacuum cleaner of the present invention, one or more of the following effects are provided.

First, the fixing member extends in the direction of gravity and freely rotates. When the angle between the second rotating shaft and the ground is a first angle greater than a predetermined angle, the fixing member is caught in the locking groove to block rolling, and the vacuum cleaner by yawing It has the advantage of being easy to operate.

Second, the fixing member extends in the direction of gravity and freely rotates. When the angle between the second rotating shaft and the ground is a second angle smaller than a predetermined angle, the fixing member is inserted into the locking groove and does not get caught, and rolling takes precedence over yawing Therefore, there is an advantage in that yawing is suppressed as much as possible and the straightness of the vacuum cleaner can be secured.

Third, the anti-rotation assembly includes an elastic member that provides a restoring force in the opposite direction when the cleaning module is yawed in one direction, thereby preventing the yaw from occurring in the cleaning module at a second angle, which is a low angle, to ensure straightness. There are also possible advantages.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a vacuum cleaner according to the present invention;
2 is a perspective view of a cleaning module according to the present invention;
3 is a front view of a cleaning module according to the present invention;
4 is a right side view of the cleaning module according to the present invention;
5 is a cross-sectional view of the cleaning module according to the present invention viewed from the right;
6 is an exploded perspective view of a cleaning module according to the present invention;
7 is a front view of a cleaning module in which a portion of a cover surrounding an elastic member is omitted;
8 is a front view of the cleaning module after the first rotation member and the second rotation member are yaked in FIG. 7;
9 is a right side view of the cleaning module in which a part of the cover surrounding the fixing member is omitted;
10 is a right side view of the cleaning module after the first to third rotation members are pitched in FIG. 9;
11 is a right side view of the cleaning module after the second rotating member is rolled in FIG. 10;
12 is a view showing the rear surface of the first rotating member from the rear;
13 is a view showing the front of the second rotating member from the front;
Figure 14a is a cross-sectional view of the connection between the third rotation member and the second rotation member in Figure 10;
14B is a cross-sectional view of a connecting portion between a third rotation member and a second rotation member in FIG. 11 .

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Hereinafter, the present invention will be described with reference to drawings for explaining the cleaner 100 according to embodiments of the present invention.

1 is a perspective view of a cleaner 100 according to an embodiment of the present invention, FIG. 2 is a perspective view showing only the cleaning module in FIG. 1 , FIG. 3 is a front view of the cleaning module of FIG. 2 , and FIG. 4 is FIG. 2 It is a right side view of the cleaning module of

Referring to FIG. 1 , the cleaner 100 includes a body 110. The main body 110 may include a suction part 112 through which air containing dust is sucked.

The direction in which the cleaning module 160 is located relative to the main body 110 is the front. In other words, forward is a direction in which the cleaner 100 moves forward.

The direction in which the main body 110 is located relative to the cleaning module 160 is the rear. The posterior is the opposite direction of the anterior.

The right side and the left side are defined based on a view of the front of the cleaner 100 from the front. Right and left are opposite.

Referring to Figures 3 and 4, the cleaning module can rotate in several directions. More specifically, the cleaning module according to the present invention can rotate in at least three directions. The cleaning module is capable of pitching around the first rotational axis (y), rolling around the second rotational axis (x), and yawing around the third rotational axis (z). this is possible

The first rotational axis (y) is a central axis around which the main body 110 rotates vertically, and is a virtual straight line disposed in the left-right direction of the cleaning module 160 . The first rotational axis (y) is orthogonal to the second rotational axis (x) and rotates the second rotational axis (x). The first rotation axis y is parallel to the rotation axis of the agitator 162 to be described later.

The second rotational axis (x) is a central axis around which the main body 110 rotates, and is a virtual straight line disposed in the longitudinal direction of the extension tube 150. The second rotation axis (x) coincides with the extending direction of the inlet 161 of the main body 110. The second rotational axis (x) substantially coincides with a central axis passing through the center of the cleaner body 110 and the center of the cleaning module 160 . However, when the second rotational axis (x) is rotated, it may not coincide with the central axis.

The third axis of rotation (z) is a central axis when the main body 110 rotates left and right, and is an imaginary straight line disposed vertically. The third axis of rotation (z) is orthogonal to both the second axis of rotation (x) and the first axis of rotation (y). The third rotational axis (z) may be rotated by the third rotational axis (y).

The suction part 112 has a cylindrical shape with a hollow inside, and is configured to suck air containing dust. The suction unit 112 provides a suction passage through which dust-containing air can flow. Air containing dust is guided to the main body 110 through the inlet 112 .

The suction motor 114 is configured to create a flow of air so that air containing dust can be introduced into the suction unit 112 .

The suction motor 114 may be a Brushless DC (BLDC) motor. A BLDC motor is a brushless type of DC motor. BLDC motors do not have brushes, which are abrasive parts, so they have low electrical and mechanical noise, no problems with high-speed rotation, and low rotation noise.

The handle 116 is a component that allows the user to move the cleaner 100 by gripping it, and is disposed in the opposite direction to the suction part 112 with respect to the dust bin 120, and is a part that the user grips by hand. can include Here, the gripping portion may have a substantially cylindrical shape.

Referring to FIG. 1 , the main body 110 includes a manipulation unit 118 . The control unit 118 is a component for a user to input a command to the cleaner 100 .

The control unit 118 may be disposed on an extension line of the handle 116 in the longitudinal direction. By having this arrangement, the user can input a command by touching the operation unit 118 with a thumb while holding the handle 116 .

Referring to FIG. 1 , the main body 110 includes a dust container 120 for storing dust separated from the air. The dust container 120 includes a cylindrical dust collecting body. Since the dust bin 120 communicates with the suction part 112 , dust included in the air sucked through the suction part 112 is separated from the air and collected in the dust bin 120 .

Referring to FIG. 1 , a cleaner 100 includes a battery 140 . The battery 140 is a component that supplies power to the main body 110 . An accommodating part for accommodating the battery 140 may be formed in the main body 110, and the battery 140 is inserted into and installed in the accommodating part.

The battery 140 is disposed under the handle 116. The battery 140 may be disposed on a lengthwise extension of the handle 116 . By having this arrangement, the battery 140 is not biased in one of the left and right directions, and the user can easily carry the vacuum cleaner 100 by holding it.

Referring to FIG. 1 , the cleaner 100 includes an extension pipe 150. The extension tube 150 is a component that communicates the main body 110 and the cleaning module 160 .

The lower end of the extension tube 150 is coupled to the cleaning module 160 and communicates with the cleaning module 160 . Referring to the drawing, the extension pipe 150 is coupled to the second rotational member 164 and rotates around the second rotational axis (x). Alternatively, unlike those shown in the drawings, the extension tube 150 may be coupled to the first rotating member 163 to rotate about the first rotating shaft y, and may be coupled to the third rotating member 165 to rotate the third rotating shaft. It can rotate around (z).

The lower end of the extension tube 150 communicates with the corrugated tube 166 .

The upper end of the extension pipe 150 is coupled to the suction part 112 of the main body 110 and communicates with the suction part 112 .

The extension tube 150 may be divided into a lower tube and an upper tube. The length of the upper tube is variable by being inserted into or withdrawn from the lower tube. The lower pipe is connected to the cleaning module 160, and the upper pipe is connected to the suction part 112 of the main body 110.

Referring to FIGS. 1 and 2 , the cleaner 100 includes a cleaning module 160 . The cleaning module 160 is a component that sucks external air.

Referring to FIG. 1 , the cleaning module 160 communicates with the extension pipe 150 . Therefore, external air is introduced into the main body 110 of the cleaner 100 through the cleaning module 160 and the extension pipe 150 by the suction force generated in the main body 110 of the cleaner 100 .

Referring to FIG. 5 , the cleaning module 160 includes a suction port 161 . The inlet 161 is a hole that sucks in dust together with air. The suction port 161 communicates with the extension tube 150, so that the dust flows into the main body 110. More specifically, the inlet 161 is connected to one side of the corrugated pipe 166, and the other side of the corrugated pipe 166 is connected to the extension pipe 150.

Referring to FIGS. 1 and 2 , the cleaning module 160 includes an agitator 162 . The agitator 162 is a component that rubs dust attached to the floor to separate it from the floor.

The agitator 162 is formed in a cylindrical shape centered on a rotation axis. The axis of rotation of the agitator 162 is disposed in the left and right directions.

The agitator 162 is disposed in front of the inlet 161. The agitator 162 sweeps away dust adsorbed on the floor at the front end of the suction port 161 . By the agitator 162, dust adsorbed on the floor can be separated from the floor and can be more easily sucked into the suction port 161.

Referring to FIG. 5 , the agitator 162 rotates counterclockwise.

The cleaning module 160 may further include a motor (not shown) for rotating the agitator 162 . Although not shown, the motor may be disposed on the inner right side of the cleaning module 160 . By having this arrangement, the center of gravity 160G of the cleaning module 160 may be disposed biased to the right side.

Referring to FIG. 2 , the cleaner 100 includes a first rotating member 163 . The first rotating member 163 is a component that changes the height of the body 110 by rotating the body 110 .

9 is a state before the first rotation member 163 rotates, and FIG. 10 is a state after the first rotation member 163 rotates. Referring to FIG. 10, when the first rotating member 163 rotates, the second rotating member 164, the third rotating member 165, the extension pipe 150, and the main body 110 are rotated, and the main body 110 ) is lowered than in the case of FIG.

The first rotating member 163 has a front end rotatably coupled to the cleaning module 160, and rotates around a first rotation axis y intersecting both the second rotation axis x and the third rotation axis z. .

The first rotating member 163 is disposed between the cleaning module 160 and the main body 110, has a first rotating shaft (y) disposed in the left and right direction, and has a first rotating shaft (y) as the center of the main body 110. ) is rotated.

The front end of the first rotating member 163 is rotatably connected to the cleaning module 160 . The rear end of the first rotating member 163 is rotatably connected to the third rotating member 165 .

The first rotating member 163 has a hollow formed therein, and a corrugated pipe 166 passes therethrough.

9 and 10, the first rotating member 163 rotates counterclockwise, the height of the main body 110 rises, and the angle between the extension pipe and the ground increases. Conversely, the first rotating member 163 rotates clockwise, the height of the main body 110 decreases, and the angle between the extension pipe and the ground decreases.

When the angle between the extension pipe and the ground decreases, the corrugated pipe 166 may be deformed convexly upward. According to the present invention, since the cleaning module 160 and the first rotating member 163 are connected by the first rotating shaft y, the height from the ground to the upper surface of the extension tube 150 can be minimized, It can be inserted into lower gaps and cleaned.

Referring to FIG. 3 , the center of gravity 160G of the cleaning module may be disposed on the first rotation axis y. By having this arrangement, when moving forward, the cleaning module 160 may not be shaken about the first rotational axis (z). Therefore, the user can operate more easily.

2 and 4, the third rotating shaft (z) is disposed at the front end of the third rotating member 165, and the first rotating member 163 is the cleaning module 160 through the first rotating shaft (y). is hinged to the rear end of

Referring to FIG. 2 , the cleaning module 160 has a recess in which the rear surface is recessed forward, and the first rotating shaft y and the first rotation member 163 are disposed in the recess. A hole through which a first rotational axis y passes is formed on an inner wall of the depression, and a hinge corresponding to the first rotational axis y is rotatably inserted into the hole.

The first rotating shaft (y) is disposed at the front end of the first rotating member 163, and the third rotating member 165 has a fixed front end and a circular motion at the rear end.

By having this arrangement, the height of the connection member between the cleaning module 160 and the extension tube 150 can be made lower. In particular, according to the present invention, when the extension pipe 150 in FIG. 5 is rotated clockwise as much as possible, the height of the cleaning module 160 and the height of the first rotating member 163 become substantially the same. Therefore, it can be cleaned by entering a narrow gap at the bottom of the sofa.

Referring to FIG. 2 , the cleaner 100 includes a third rotating member 165 . The third rotating member 165 is a component that rotates the main body 110 and changes the position of the main body 110 left and right.

7 is a state before the third rotation member 165 rotates, and FIG. 8 is a state after the third rotation member 165 rotates. Referring to FIG. 8 , when the third rotating member 165 rotates, the second rotating member 164, the extension pipe 150, and the main body 110 are rotated left or right. Conversely, when the user rotates the body 110 left or right, the third rotation member 165 moves the first rotation member 163 and the cleaning module 160 to the left or right around the third rotation axis z. rotate to the right

The third rotating member 165 is disposed between the cleaning module 160 and the main body 110, has a third rotating shaft (z) disposed in the vertical direction, and has a third rotating shaft (z) as the center of the main body 110 ) is rotated.

Referring to FIG. 4, the third rotational shaft (z) is disposed at the front end of the third rotational member 165, and the third rotational member 165 rotates the first rotational member 163 through the third rotational shaft (z). It is hinged to the rear end, and the rear end of the third rotating member 165 is coupled to the front end of the main body 110.

Referring to FIG. 6, the third rotating member 165 is formed in a U-shape with an open front. The upper surface of the third rotating member 165 covers the upper surface of the first rotating member 163, and the lower surface of the third rotating member 165 covers the lower surface of the first rotating member 163.

The third rotating member 165 has a hollow formed therein. The corrugated pipe 166 penetrates the inside of the third rotating member 165 and is connected to the extension pipe 150. By having such an arrangement, dust can be smoothly sucked through the corrugated pipe 166 even when the third rotating member 165 rotates left and right.

A third rotation shaft (z) is disposed at the front end of the third rotation member (165). The third rotation axis (z) is disposed in the vertical direction of the third rotation member (165). The third rotation shaft (z) is disposed above and below the first rotation member (163).

The third rotation axis (z) extends vertically. Referring to FIG. 4 , the third rotating member 165 is rotatably connected to the first rotating shaft y, and the third rotating shaft z is not vertically fixed with respect to the ground.

The third axis of rotation (z) is perpendicular to the first axis of rotation (y). Referring to FIG. 2, the first rotational axis (y) is disposed left and right, and the third rotational axis (z) is disposed vertically, and when viewed from the front, the third rotational axis (z) is perpendicular to the first rotational axis (y). do. Referring to FIG. 5 , the third rotational axis (z) is disposed behind the first rotational axis (y), and the third rotational axis (z) and the first rotational axis (y) do not intersect each other.

The third axis of rotation (z) is perpendicular to the straight line in the longitudinal direction of the extension tube (150). The extension pipe 150 is rotatably disposed on the first axis of rotation (y), and the third axis of rotation (z) is always perpendicular to a straight line in the longitudinal direction of the extension pipe 150.

If the extension pipe 150 is not provided in the cleaner 100, the rear end of the third rotating member 165 is coupled to the front end of the main body 110. Unlike this, when the extension pipe 150 is provided at the front end of the main body 110 as in the present invention, the rear end of the third rotation member 165 is coupled to the front end of the extension pipe 150. By having this arrangement, the body 110 can change its position left and right around the third rotational axis (z).

Referring to FIG. 2 , the cleaner includes a second rotating member 164 . The second rotation member 164 is a component that changes the angle of the body 110 by rotating the body 110 .

10 is a state before the second rotation member 164 rotates, and FIG. 11 is a state after the second rotation member 164 rotates. Referring to FIG. 11 , when the second rotating member 164 rotates, the extension pipe 150 and the main body 110 are rotated left or right. Since the main body 110 is vertically long and narrow left and right, as the main body 110 is rotated, the angle between the extension pipe 150 and the ground can be further reduced, thereby cleaning a narrower gap.

The second rotating member 164 has a front end rotatably coupled to the first rotating member 163, and rotates around a second rotating shaft (x) passing through the cleaning module 160 and the main body 110.

The second rotating member 164 is disposed between the cleaning module 160 and the main body 110, and rotates the main body 110 around the second rotational axis (x).

The second rotating member 164 has a hollow formed therein and communicates with the corrugated pipe 166 .

The second rotating member 164 together with the third rotating member 165 makes it possible to clean a lower gap. Specifically, the cleaner body 110 has a vertical length longer than a left-right length due to the dust container 120 . Therefore, when the second rotating member 164 is rotated by 90 degrees, since the height of the main body 110 is reduced, there is an effect that a lower gap can be cleaned.

According to the present invention, the third rotational axis (z) is disposed rearward than the first rotational axis (y). Since the first rotation axis y is disposed left and right, the connection portion of the first rotation axis y has a lower required height than the connection portion of the third rotation axis z. Therefore, since the connection part of the first rotational shaft (y) is placed in front of the connection part of the third rotational shaft (z), the height of the connection part between the cleaning module 160 and the extension tube 150 can be minimized, so that it can fit in a narrow gap. The cleaning module 160 may enter. In addition, by having such an arrangement, the axis can be placed as far forward as possible, and in particular, the center of gravity (160G) of the cleaning module of the conventional cleaners 100 is in front of the first rotation axis (y) or the third rotation axis (z) Unlike the arrangement, the center of gravity (160G) of the cleaning module of the present invention may be disposed on the first rotation axis (y).

Referring to FIG. 9 , the cleaner 100 includes an anti-rotation assembly 170 . The anti-rotation assembly 170 is a component that prevents the cleaner 100 from rolling under specific conditions.

The anti-rotation assembly 170 selectively fixes the first rotation member 163 and the second rotation member 164 . Referring to FIG. 9, the anti-rotation assembly 170 will selectively fix the second rotation member 164 and the third rotation member 165, but unlike the drawing, the cleaner 1 does not move the third rotation member 165. If not provided, the anti-rotation assembly 170 may selectively fix the second rotation member 164 and the first rotation member 163.

The anti-rotation assembly 170 has one end disposed on the first rotation member 163 and the other end disposed on the second rotation member 164 . Referring to the drawing, the anti-rotation assembly 170 will be disposed between the second rotation member 164 and the third rotation member 165, but unlike the drawing, the cleaner 1 does not include the third rotation member 165. If not, the anti-rotation assembly 170 may be disposed between the second rotation member 164 and the first rotation member 163.

When there is no anti-rotation assembly 170, the cleaner 100 according to the present invention may perform pitching by the first rotation member 163 and roll by the second rotation member 164, and Yawing can be performed by the third rotation member 165.

Referring to FIG. 9 , when there is an anti-rotation assembly 170, when the vacuum cleaner 1 is at a position higher than a predetermined height, the anti-rotation assembly 170 includes a second rotation member 164 and a third rotation member ( 165) is fixed. At this time, since the vacuum cleaner 1 does not roll but is capable of pitching or yawing, there is an effect of ensuring easy maneuverability.

Conversely, referring to FIG. 10 , when there is an anti-rotation assembly 170, when the vacuum cleaner 1 is at a position lower than a predetermined height, the anti-rotation assembly 170 engages the second rotation member 164 and the third rotation member. (165) is unlocked. At this time, the cleaner 100 is capable of rolling, pitching, and yawing. However, since the angle between the third rotating member 165 and the ground is small, yawing is difficult. As a result, as shown in FIG. 11 , the vacuum cleaner 1 is capable of rolling or pitching except for yawing, so that easy straightness can be secured.

Referring to FIGS. 12 and 13 , the anti-rotation assembly 170 includes a locking groove 172 and a fixing member 171 .

The locking groove 172 is a component that limits rolling as the fixing member 171 is inserted.

The locking groove 172 is formed on the first rotating member 163 . The locking groove 172 is formed on the rear surface of the first rotating member 163 facing the second rotating member 164 .

Specifically, when referring to FIG. 12 , the locking groove 172 is formed on the rear surface of the third rotating member 165 . Alternatively, unlike the drawings, when the cleaner 100 does not include the third rotation member 165 and the second rotation member 164 is connected to the first rotation member 163, the locking groove 172 is It may be formed on the rear surface of the one-rotation member 163.

Referring to FIG. 12 , the rotating member includes a hollow in which an air flow path may be disposed. The locking groove 172 is disposed outside the hollow in the radial direction. The locking groove 172 may be formed in an arc shape.

The locking groove 172 may be formed in a shape corresponding to the fixing member 171 . Referring to FIG. 12 , the locking groove 172 may extend in a circumferential direction around the second rotational axis and may be formed in a C-shape with an open bottom.

The fixing member 171 is a component that limits rolling by being inserted into the locking groove 172 .

Referring to FIG. 13 , the fixing member 171 is rotatably coupled to the second rotating member 164 and extends in the direction of gravity. 9 and 10, when the second rotating member 164 rotates, the fixing member 171 is always disposed in the same direction as gravity, so the fixing member 171 and the second rotating member 164 Alternatively, an angle between the fixing member 171 and the second rotational axis may be changed.

Referring to FIG. 9 , a portion of the fixing member 171 is inserted into the locking groove 172 when the angle between the second rotating shaft and the ground is the first angle. For example, the first angle may be 45 degrees. At the first angle, the fixing member 171 is caught in the locking groove 172, and rolling does not occur around the second rotational axis.

Referring to FIG. 10 , the fixing member 171 is not inserted into the locking groove 172 when the angle between the second rotating shaft and the ground is the second angle. For example, the second angle may be 15 degrees. At the second angle, the fixation between the fixing member 171 and the locking groove 172 is released, and as shown in FIG. 11, rolling may occur around the second rotational axis.

The fixing member 171 may be formed of a metal material. Accordingly, the fixing member 171 can always be disposed in the direction of gravity with a sufficient weight.

Referring to FIGS. 9 and 13 , the fixing member 171 extends in a circumferential direction around the second rotational axis (x). For example, the fixing member 171 may be formed in a C-shape. By having this arrangement, when the second rotating member 164 rotates, the fixing member 171 may not interfere with other components, and the diameter of the cover surrounding the fixing member 171 can be designed to be small. In addition, when the fixing member 171 is caught in the locking groove 172, it is supported in a direction coincident with the circumferential direction, so that rolling can be more firmly restricted.

The rotational axis of the fixing member 171 may be disposed parallel to the first rotational axis. For example, the rotating shaft of the fixing member 171 may be disposed in the left and right directions.

The fixing member 171 may be coupled to the side end of the second rotating member 164 by a bushing and a fixing pin.

Referring to FIG. 9 , the second rotation axis (x) passes through the cleaning module 160 and the main body 110 . The rotational axis of the fixing member 171 is orthogonal to the second rotational axis (x). By having this arrangement, when the fixing member 171 is yawed around the third rotational axis (z), the fixation with the locking groove 172 is not released, and only when pitched around the first rotational axis (y) Fixation with the locking groove 172 may be released. Thus, the operability of the cleaner 100 can be improved.

The anti-rotation assembly 170 of FIGS. 9 and 14 may include a stopper 1711. By the stopper, the angle at which the main body 110 can be rolled is limited. For example, the body 110 may be rolled up to 90 degrees.

14A shows a state before the second rotation member 164 rotates based on the third rotation member 165. Referring to FIG. The locking jaw 173 is disposed on the upper part of the passage, and the stopper 1711 is disposed on the left and right sides of the passage, so that the second rotating member 164 can easily rotate and roll the main body 110.

14B shows a state after the second rotation member 164 rotates based on the third rotation member 165. Referring to FIG. For example, when the second rotating member 164 rotates 90 degrees in a counterclockwise direction, the stopper 1711 is caught on the locking jaw 173 and can no longer rotate, causing the body 110 to roll further. can't Conversely, although not shown, it is natural that the second rotating member 164 cannot rotate any more even when it rotates clockwise by 90 degrees.

The stopper 1711 is a component that limits the rotation of the second rotating member 164 or the main body 110 by being caught on the locking jaw 173 .

The locking jaw 173 is a component that limits the rotation of the second rotating member 164 or the main body 110 when the stopper 1711 is caught.

The locking jaw 173 is disposed on the first rotational member 163, and the stopper 1711 is caught when the second rotational member 164 is rotated to the limit angle.

Specifically, when referring to the drawings, the locking protrusion 173 is formed on the rear surface of the third rotating member 165. Alternatively, unlike the drawings, when the cleaner 100 does not include the third rotation member 165 and the second rotation member 164 is connected to the first rotation member 163, the locking jaw 173 is It may be formed on the rear surface of the one-rotation member 163.

The stopper 1711 is disposed on the second rotating member 164, and the locking jaw 173 is disposed on the first rotating member 163. When the second rotating member 164 is rotated, one end of the stopper 1711 is caught on the locking jaw 173 so that the second rotating member 164 cannot be rotated any more.

Specifically, referring to the drawings, the stopper 1711 is disposed on the second rotating member 164 and the locking jaw 173 is disposed on the third rotating member 165. Alternatively, unlike the drawings, when the cleaner 100 does not include the third rotation member 165 and the second rotation member 164 is connected to the first rotation member 163, the stopper 1711 is It is disposed on the rotating member 164 and the locking jaw 173 may be disposed on the first rotating member 163 .

Referring to FIG. 9 , the stopper 1711 is disposed on the fixing member 171 and extends in a direction crossing the extending direction of the fixing member 171 . The fixing member 171 may extend in the direction of gravity, and the stopper 1711 may extend in a direction perpendicular to the direction of gravity.

When the fixing member 171 extends downward, the stopper 1711 may extend forward. Accordingly, the extension direction of the fixing member 171 does not coincide with the direction of gravity and may be slightly inclined backward.

A flange protruding in the radial direction of the second rotation shaft may be formed at the rear of the fixing member 171 . Accordingly, when the stopper 1711 is supported on the locking jaw 173, the end of the fixing member 171 may come into contact with the flange and be supported by the flange.

2, the front end of the third rotation member 165 is rotatably coupled to the rear end of the first rotation member 163, and the front end of the second rotation member rotates to the rear end of the third rotation member 165. possibly combined Accordingly, pitching is performed at the rear end of the cleaning module 160, yawing is performed at the rear of the pitching, and rolling is performed at the rear of the pitching.

Referring to FIGS. 7 and 8 , the anti-rotation assembly 170 includes an elastic member 174 . The elastic member 174 provides restoring force in the opposite direction when the first rotating member 163 rotates in one direction. Therefore, the cleaning module 160 is prevented from being shaken and yawed arbitrarily by friction with the ground, and yawing is possible only by a user's manipulation.

For example, referring to FIG. 8 as an example, when the third rotating member 165 rotates to the right, the elastic member 174 applies a restoring force to the left. Conversely, when the third rotating member 165 rotates to the left, the elastic member 174 applies a restoring force to the right.

Referring to FIG. 7 , the elastic member 174 may be a torsion spring. The elastic member 174 is disposed on the first rotational member, and the third rotational axis (z) is disposed as a rotation center. The elastic member 174 may be wound along the third axis of rotation (z).

One leg of the elastic member 174 is supported on one side of the third rotating member 165, and the other leg is supported on the other side of the third rotating member 165. The left end of the elastic member 174 is supported on the left side of the third rotating member 165, so that when the third rotating member 165 rotates to the right, the left side of the third rotating member 165 moves to the left. push away The right end of the elastic member 174 is supported on the right side of the third rotating member 165, so that when the third rotating member 165 rotates to the left, the right side of the third rotating member 165 is moved to the right. push away

For example, referring to FIG. 8 , when the third rotating member 165 rotates to the right, the left end of the elastic member 174 moves to the right, and the left end of the elastic member 174 moves to the right. A restoring force is applied to the left side of (165). Conversely, although not shown, when the third rotating member 165 rotates to the left, the right end of the elastic member 174 moves to the left, and the right end of the elastic member 174 moves to the left of the third rotating member 165. We will apply a restoring force to the right on the right flank.

Referring to FIGS. 7 to 10 , the anti-rotation assembly 170 of the cleaner 100 according to the present invention may be specified by a rolling axis, a pitching axis, and a yawing axis.

The rolling shaft passes through the cleaning module 160 and is disposed to be pitchable at a connection point with the cleaning module 160 as a pitching shaft. The pitching axis corresponds to the first rotation axis, and the rolling axis corresponds to the second rotation axis. The front end of the rolling shaft may intersect with the pitching shaft, and the pitching movement may be performed while the rear end of the rolling shaft rotates up and down.

The main body 110 is disposed on a rolling shaft, provides a suction force to the cleaning module 160, and is disposed to roll around the rolling shaft.

The anti-rotation assembly 170 is disposed between the cleaning module 160 and the main body 110, and selectively limits the rolling of the main body 110.

The fixing member 171 is disposed in the direction of gravity in the longitudinal direction. The rolling axis moves pitching around the pitching axis, but the fixing member 171 is always disposed in the direction of gravity. The fixing member 171 relatively rotates around the rolling axis.

Referring to FIG. 9 , when the angle between the rolling shaft and the ground is greater than or equal to a predetermined angle, the fixing member 171 is inserted into the locking groove 172 . When the angle between the rolling shaft and the ground is greater than or equal to a predetermined angle, at least a portion of the fixing member 171 is inserted into and caught in the locking groove 172, and the main body 110 cannot rotate around the rolling shaft. At this time, the cleaner 100 may pitch or yaw.

Referring to FIG. 10, when the angle between the rolling shaft and the ground is less than a predetermined angle, the fixation between the fixing member 171 and the locking groove 172 is released, and the main body 110 can rotate around the rolling shaft. . At this time, although the vacuum cleaner 100 is capable of rolling, pitching, and yawing, yawing is difficult at a low angle, and as shown in FIG. 11, yawing may be performed by rolling or pitching.

The fixing member 171 is rotatably disposed around a rotational axis parallel to the pitching axis. The rotating shaft of the fixing member 171 is disposed in the left and right directions. By having this arrangement, the fixing member 171 is not separated from the locking groove 172 when the position is lowered while the main body 110 is yawed, and the locking groove 172 only when the position is lowered while the main body 110 is pitched can deviate from

The yaw axis is disposed between the pitching axis and the rolling axis, and is disposed perpendicular to both the pitching axis and the rolling axis. In other words, the yaw axis is arranged in front of the rolling axis. Since the length of the yawing member 165 is smaller than the length of the rolling member, the yawing axis is disposed in front of the rolling axis, and three rotational axes are disposed as close to the cleaning module 160 as possible to improve operability. there is.

The locking jaw 173 is disposed outside the rolling shaft in the radial direction. The stopper 1711 is disposed in the circumferential direction of the rolling shaft from the locking jaw 173, and is caught on the locking jaw 173. The locking jaw 173 and the stopper 1711 are disposed along an imaginary circle disposed in the radial direction of the rolling shaft.

Although not shown in the drawings, according to another embodiment of the present invention, the cleaner 100 may not include the third rotation member 165 that is yawed, but only the second rotation member 164 that rolls. According to this, the second rotation member 164 is disposed between the cleaning module 160 and the main body 110, it is possible to rotate the main body 110 around the axis of rotation (x) disposed in one direction. In addition, one end of the anti-rotation assembly 170 is coupled to the second rotation member 164 and the other end is caught on the cleaning module 160 to suppress rotation of the main body 110 . Specifically, the fixing member 171 may be disposed on the second rotating member 164 and the locking groove 172 may be disposed on the cleaning module 160 .

According to another embodiment of the present invention, the rear end of the second rotating member 164 is coupled to the extension pipe 150 connected to the main body 110 to rotate together with the main body 110 around the second rotation axis (x). You will be able to.

According to another embodiment of the present invention, the cleaner 100 does not include the third rotation member 165 that is yawed, but only includes the second rotation member 164 that is rolled and the first rotation member 163 that is pitched. can According to this, the first rotation member 163 may be disposed at the rear end of the cleaning module 160, and the second rotation member 164 may be disposed at the rear end of the third rotation member 165. At this time, the fixing member 171 may be disposed on the second rotating member 164 and the locking groove 172 may be disposed on the third rotating member 165 .

The operation of the cleaner 100 according to the present invention configured as described above will be described as follows.

According to the present invention, between the cleaning module 160 and the main body 110, a first rotational member 163 capable of rotating (pitching) about a first rotational axis (y) and a second rotational axis (x) A second rotating member 164 capable of rotating (rolling) around the center and a third rotating member 165 capable of rotating (yawing) around the third rotating shaft z are disposed.

Referring to FIG. 9, when the angle between the second rotating shaft and the ground is a first angle greater than or equal to a predetermined angle, the second rotating member 164 cannot rotate because the locking groove 172 of the fixing member 171 is caught, The cleaner 100 does not roll. When the user rotates the main body 110 clockwise or counterclockwise around the second rotational axis, the third rotational member 165 may yaw around the third rotational axis z and pivot. When the user pulls the main body 110 down, it pitches around the first rotational axis y and can clean a narrow gap. At this time, there is an effect of improving the operability of the cleaner 100 .

Referring to FIG. 10, when the user lowers the main body 110 and the angle between the second rotating shaft and the ground becomes a second angle that is less than or equal to a predetermined angle, the fixation between the fixing member 171 and the locking groove 172 is released Therefore, since the second rotating member 164 can freely rotate, the cleaner 100 can be rolled as shown in FIG. 11 . When the user rotates the main body 110 clockwise or counterclockwise around the second rotational shaft, the second rotational member 164 rolls around the second rotational shaft and can clean a narrower gap. At this time, since rolling is more dominant than yawing due to the low angle, yawing is suppressed and straightness of the cleaner 100 is improved.

However, in this case, the rolling angle can be limited by the stopper 1711 and the locking jaw 173. Specifically, referring to FIG. 14, when the second rotating member 164 rolls, the stopper 1711 is caught on the locking jaw 173, thereby limiting rotation of the cleaner 100 beyond a certain angle, thereby improving the operability of the cleaner 100. can be secured

Referring to FIGS. 7 and 8 , the elastic member 174 provides restoring force in the opposite direction when the third rotating member 165 rotates in one direction. Accordingly, it is possible to prevent the cleaning module 160 from being arbitrarily yawed by friction of the ground at the second angle, thereby improving the straightness of the cleaner 100 .

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Various modifications and implementations are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

100: cleaner 110: main body
120: dust bin 140: battery
150: extension pipe
160: cleaning module 160G: center of gravity
161: inlet 162: agitator
163: first rotating member 164: second rotating member
165: third rotating member
166: corrugated pipe
170: anti-rotation assembly 171: fixing member
1711: stopper 172: locking groove
173: Geolumteok 174: Elastic member

Claims (14)

a cleaning module that sucks in air from the outside;
a main body providing a suction force to the cleaning module;
a first rotating member disposed between the cleaning module and the main body and rotating the main body around a first rotating shaft (y) disposed in one direction;
a second rotating member disposed between the first rotating member and the main body and rotating the main body around a second rotating shaft disposed in a direction crossing the first rotating shaft;
And an anti-rotation assembly selectively fixing the first rotation member and the second rotation member.
The anti-rotation assembly,
a locking groove formed in the first rotating member;
It is rotatably coupled to the second rotating member, extends in the direction of gravity, and when the angle between the second rotating shaft and the ground is a first angle, at least a part is inserted into the locking groove, and between the second rotating shaft and the ground A cleaner comprising: a fixing member that is not inserted into the locking groove when the angle of the second angle is the second angle. According to claim 1,
The second rotation axis,
A cleaner passing through the cleaning module and the main body. According to claim 1,
The fixing member is
A vacuum cleaner extending in a circumferential direction about the second rotating shaft. According to claim 1,
The rotating member,
Including a hollow in which an air flow path can be disposed,
The locking groove,
A vacuum cleaner disposed outside the hollow in a radial direction. According to claim 1,
The anti-rotation assembly,
a stopper disposed on the second rotating member;
A cleaner comprising: a locking jaw disposed on the first rotating member and engaging the stopper when the second rotating member is rotated to a limit angle. According to claim 5,
The stopper,
disposed on the fixing member;
A vacuum cleaner extending in a direction crossing the extending direction of the fixing member. According to claim 1,
A third rotational member having a front end rotatably coupled to the cleaning module and rotating about a third rotational shaft intersecting both the first rotational shaft and the second rotational shaft;
The front end of the third rotation member is rotatably coupled to the rear end of the first rotation member,
A front end of the second rotating member is rotatably coupled to a rear end of the third rotating member. According to claim 7,
The first axis of rotation is
A pitching shaft that rotates the main body up and down based on the cleaning module,
The second rotation axis,
A rolling shaft for rotating the main body around the moving direction of the cleaning module,
The third axis of rotation,
A cleaner that is a yawing axis that rotates the main body left and right with respect to the cleaning module. According to claim 7,
The anti-rotation assembly,
The cleaner further comprising an elastic member providing restoring force in the opposite direction when the third rotating member rotates in one direction. According to claim 9,
The elastic member,
It is fixed to the first rotating member,
A vacuum cleaner comprising a torsion spring arranged around the third rotating shaft as a center of rotation. a cleaning module that sucks in air from the outside;
a rolling shaft passing through the cleaning module and being pitchable at a connection point with the cleaning module as a pitching shaft;
a main body disposed on the rolling shaft, providing a suction force to the cleaning module, and being rollable around the rolling shaft;
An anti-rotation assembly disposed between the cleaning module and the main body and selectively limiting the rolling of the main body;
The anti-rotation assembly,
a fixing member whose longitudinal direction is disposed in the direction of gravity;
A cleaner comprising: a locking groove into which the fixing member is inserted when an angle between the rolling shaft and the ground is equal to or greater than a predetermined angle. According to claim 11,
The fixing member is
A vacuum cleaner disposed rotatably about a rotation axis disposed parallel to the pitching axis. According to claim 11,
A cleaner comprising: a yawing axis disposed between the pitching axis and the rolling axis and perpendicular to both the pitching axis and the rolling axis. According to claim 11,
The anti-rotation assembly,
a locking jaw disposed outside the rolling shaft in a radial direction;
A cleaner comprising: a stopper disposed in a circumferential direction of the rolling shaft from the locking jaw and caught on the locking jaw.

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