JP4872904B2 - Vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner having a movable bumper on the outer periphery of a main body.

Conventional vacuum cleaners of this type include those that rotate about 90 degrees with respect to the main body, and those that have a plurality of rollers protruding from the corners of the main body (for example, Patent Document 1, Patent Document 1). 2).
Japanese Patent No. 2907894 Japanese Utility Model Publication No. 63-103852

  However, in the vacuum cleaner configuration as described above, in the type where the rotation angle is restricted, braking force is applied by a bumper when traveling near the wall, or in the type of multiple roller configuration, between the rollers There is a problem that it cannot be avoided when an obstacle comes into contact.

In order to solve the above-described conventional problems, a vacuum cleaner according to the present invention includes a vacuum cleaner body and a power cord winder that is disposed in a lower portion of the vacuum cleaner body and winds the power cord in a spiral shape in a horizontal direction. And a rotating bumper disposed below the power cord winding device and provided so as to be able to rotate 360 degrees at the same center as the rotation center of the power cord winding device, and the rotating bumper forms an outer periphery. And a disc portion extending inward from the upper end of the cylindrical portion, and the cleaner body holds the inner surface of the cylindrical portion rotatably from the inside and the a rotatable roller body rotary bumper and same direction, the sphere to hold the inside face of the disc portion from the bottom, but are arranged alternately, the rotary bumper, from storage position of the plug of the power cord By being arranged to rotate at a lower, by arranging the power cord winding device is a functional component to the body of a circular shape, a 360 degree rotation bumper good usability efficiently body, yet compact It is possible to provide a vacuum cleaner excellent in obstacle avoidance.

  The vacuum cleaner of the present invention can minimize the outer diameter of the main body by combining the rotary bumper with the circular main body, and can be excellent in obstacle avoidance.

A first aspect of the present invention is a vacuum cleaner main body, a power cord winding device that is disposed in a lower portion of the vacuum cleaner main body and winds a power cord spirally in a horizontal direction, and a lower side of the power cord winding device And a rotary bumper provided at the same center as the rotation center of the power cord winding device so as to be able to rotate 360 degrees. The rotary bumper includes a cylindrical portion that forms an outer periphery, and an inner side from the upper end of the cylindrical portion. And a roller body that rotatably holds the inner surface of the cylindrical portion from the inside and is rotatable in the same direction as the rotating bumper. , a sphere holding the inner surface of the disc portion from the bottom, but are arranged alternately, the rotary bumper, that are arranged to rotate below the stored position of the plug of the power cord In addition, the power cord take-up device, which is a functional component, and the easy-to-use 360-degree rotating bumper are efficiently placed on the main body of the circular main body, providing a compact vacuum cleaner with excellent obstacle avoidance It is something that can be done.

In addition, the rotary bumper's cross-sectional shape is L-shaped, and the inside of the top surface is a sphere and the inner surface is received by a roller body that can rotate in the same direction as the rotary bumper. Can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
The vacuum cleaner which mounts the 360 degree | times rotation bumper in the 1st Embodiment of this invention is demonstrated using FIGS. 1-3.

FIG. 1 is a plan view and a side view of a vacuum cleaner main body 1 in the present embodiment. FIG. 2 is a central sectional view of the electric vacuum cleaner. FIG. 3 is a plan view and a side view of the rotary bumper 2 that characterize the present invention.

  1 and 2, the electric vacuum cleaner main body 1 is substantially circular, and a traveling wheel and a power cord winding device 4 are provided at the lower portion of the circular main body. The traveling wheel is composed of a center wheel 5 that is rotatable in the direction of travel in the center of the vacuum cleaner body 1 and five casters 6 that are arranged radially around the center wheel 5 and that are each rotatable 360 degrees. ing. Further, the center wheel 5 is urged by a spring 7 downward (traveling surface direction).

  A power cord winding device 4 is disposed on the upper part of the traveling wheel, and a power plug 8 is disposed at the rear of the main body.

  Furthermore, a dust collection chamber 10 having a dust collection bag 9 for storing dust is disposed in the upper part (upper part of the main body) of the power cord winding device 4, and an electric blower 11 for sucking dust is disposed in the rear. is doing. The dust collection chamber 10 is covered with a dust collection lid 12 that can be freely opened and closed.

  In the operation according to the above configuration, the dust sucked by the electric blower 11 is accommodated in the dust bag 9 in the dust chamber 10. The dust bag 9 can be easily replaced by opening the dust cover 12. As for the main body running, the center wheel 5 arranged at the center of the main body has a function of following the unevenness of the floor surface by the biasing effect of the spring 7. In addition to being installed securely with respect to the floor surface, it is possible to ensure straight running stability by rotating only in the direction of travel, or to rotate 360 degrees on the spot using the center wheel 5 as the rotation axis. It is possible to run very smoothly.

  Next, the configuration of the power cord winding device 4 will be described with reference to FIG.

  The power cord winding device 4 includes a bottomed cylindrical case body 13 and a case cover 14 fitted to the opening surface of the vacuum cleaner body 1 so that the rotary reel 15 can rotate in one direction. It is arranged in a state of being urged to rotate. The rotary reel 15 is urged to rotate by a mainspring 16 disposed below the rotary reel 15. In addition, a braking surface 18 projecting in a direction perpendicular to the rotation surface 17 is formed integrally with the rotation reel 15 on the upper surface of the rotation reel 15, and the braking surface 18 has a certain gap so as not to come into contact with other components. And is covered with a case cover 14. However, a part of the braking surface 18 is exposed from the case cover 14, and the rotation of the braking surface 18 can be regulated by the braking means 19. As the braking means 19, a rubber roller 20 that contacts the braking surface 18 and suppresses the rotation of the braking surface 18, a rotatable braking lever 21 for moving the rubber roller 20 away from the braking surface 18, and a rubber via the braking lever 21. The roller 20 is configured by a braking spring 22 that urges the roller 20 in a direction in contact with the braking surface 18. That is, when the braking lever 21 is moved to move the rubber roller 20 away from the braking surface 18, the rotating reel 15 sandwiched between the case body 13 and the case cover 14 winds the power cord by the urging force of the spring spring 16. When it is desired to stop the power cord halfway, the rotary lever 15 can be stopped by releasing the braking lever 21 and bringing the rubber roller 20 into contact with the braking surface 18.

  Next, the configuration of the rotary bumper 2 that is a feature of the present invention will be described with reference to FIG. The rotary bumper 2 is arranged to be rotatable 360 degrees about the central axis of the power cord winding device 4 and the same center axis. Then, as shown in FIG. 3, the cross-sectional shape is L-shaped by including a cylindrical portion 2 a that forms the outer periphery and a disk portion 2 b that extends inward from the upper end of the cylindrical portion 2 a, and the inner side of the top surface is a sphere 23. The receiving and inner side surfaces are configured to be received by a roller body 24 that can rotate in the same direction as the rotating bumper 2.

Five spherical bodies 23 and five roller bodies 24 are alternately arranged on the outer periphery of the main body. The spherical body 23 is housed in a box-like rib 25 so as not to drop during assembly, and the roller body 24 is inserted into a shaft 26 provided on the main body side. By adopting this configuration, the rotary bumper 2 can be rotated 360 degrees smoothly, can be prevented from dropping when the sphere 23 is assembled, and can improve the assembly workability.

  In addition, by arranging the rotary bumper 2 below the power cord winding device 4 (below the power plug), the power plug can be pulled out and the power cord clothing and bumper ( The contact resistance with the outer portion of the main body is reduced, the winding load of the power cord is reduced, and the power cord can be smoothly wound.

  As described above, the cross-sectional shape of the rotary bumper of the vacuum cleaner according to the present invention is L-shaped, and the top surface is received by a spherical body and the inner surface is received by a roller body that can rotate in the same direction as the rotary bumper. In this way, a rotating bumper that can rotate 360 degrees smoothly can be realized, and an easy-to-use vacuum cleaner can be provided.

The top view and side view of the electric vacuum cleaner in embodiment of this invention Central sectional view of the vacuum cleaner (A) Planar partial sectional view of the rotary bumper of the vacuum cleaner (b) Side partial sectional view of the rotary bumper of the vacuum cleaner

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner body 2 Rotating bumper 2a Cylindrical part 2b Disk part 4 Power supply cord winding device 23 Sphere 24 Roller body

Claims (1)

A main body of the vacuum cleaner, a power cord winding device that is disposed at a lower portion of the main body of the vacuum cleaner , winds the power cord in a spiral shape in a horizontal direction, and disposed below the power cord winding device, the power source A rotary bumper provided at the same center as the rotation center of the cord winder so as to be able to rotate 360 degrees. The rotary bumper includes a cylindrical portion that forms an outer periphery, and a disk portion that extends inward from the upper end of the cylindrical portion. The vacuum cleaner main body includes a roller body that rotatably holds the inner surface of the cylindrical portion from the inside and is rotatable in the same direction as the rotating bumper, and an inner portion of the disk portion. a sphere holding the side from the bottom, but are arranged alternately, the rotary bumper was characterized by being arranged to rotate below the stored position of the plug of the power cord collector Vacuum cleaner.

Images