U.S. patent application number 12/954252 was filed with the patent office on 2011-05-26 for upright type vacuum cleaner.
This patent application is currently assigned to LG ELECTRONICS INC.. Invention is credited to Gun Ho HA, Geun Bae HWANG.
Application Number | 20110119863 12/954252 |
Document ID | / |
Family ID | 44060964 |
Filed Date | 2011-05-26 |
United States Patent
Application |
20110119863 |
Kind Code |
A1 |
HA; Gun Ho ; et al. |
May 26, 2011 |
UPRIGHT TYPE VACUUM CLEANER
Abstract
An upright type vacuum cleaner is disclosed. An object of the
present invention is to provide an upright type vacuum cleaner
having a movement direction changed smoothly and quickly as
necessary during the movement. The upright type vacuum cleaner
includes a body, a wheel member provided in the body, the wheel
member including a main rotation member rotatably provided in the
body, and an auxiliary rotation member rotatably provided in the
main rotation member to be rotated in a predetermined rotational
direction different from a rotational direction of the main
rotation member.
Inventors: |
HA; Gun Ho; (Changwon-si,
KR) ; HWANG; Geun Bae; (Seoul, KR) |
Assignee: |
LG ELECTRONICS INC.
Seoul
KR
|
Family ID: |
44060964 |
Appl. No.: |
12/954252 |
Filed: |
November 24, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61264228 |
Nov 24, 2009 |
|
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Current U.S.
Class: |
15/412 ;
15/300.1; 15/415.1 |
Current CPC
Class: |
B60B 19/003 20130101;
A47L 5/28 20130101; A47L 9/02 20130101; A47L 9/009 20130101; B60B
2200/49 20130101 |
Class at
Publication: |
15/412 ;
15/300.1; 15/415.1 |
International
Class: |
A47L 9/28 20060101
A47L009/28; A47L 9/00 20060101 A47L009/00; A47L 9/02 20060101
A47L009/02 |
Claims
1. A upright type vacuum cleaner comprising: a body; a wheel member
provided in the body, the wheel member comprising: a main rotation
member rotatably provided in the body; and an auxiliary rotation
member rotatably provided in the main rotation member to be rotated
in a predetermined rotational direction different from a rotational
direction of the main rotation member.
2. The upright type vacuum cleaner as claimed in claim 1, further
comprising: an accommodation part provided in the main rotation
member to accommodate the auxiliary rotation member and the
plurality of the auxiliary rotation member are provided and the
plurality of the accommodation parts are provided
correspondingly.
3. The upright type vacuum cleaner as claimed in claim 1, further
comprising: a suction nozzle connected with the body, wherein the
wheel member comprising the main rotation member and the auxiliary
rotation member is installed in the suction nozzle.
4. The upright type vacuum cleaner as claimed in claim 3, wherein
the plurality of the wheel members are provided and the plurality
of the wheel members are rotatably provided in both opposite side
portions of the body and both opposite side portion of the suction
nozzle.
5. The upright type vacuum cleaner as claimed in claim 3, wherein
the wheel member comprises a first wheel member and a second wheel
member formed larger than the first wheel member and the first
wheel member is arranged in the suction nozzle and the second wheel
member is arranged in the body.
6. The upright type vacuum cleaner as claimed in claim 5, wherein
auxiliary rotation members of the first wheel member are arranged
in both side portions of a main rotation member in plural lines and
auxiliary rotation members of the second wheel member are arranged
along an outer circumferential surface of a main rotation member in
a single line.
7. The upright type vacuum cleaner as claimed in claim 1, wherein
the rotational direction of the main rotation member and the
rotational direction of the auxiliary rotation member are formed
different to a predetermined angle.
8. The upright type vacuum cleaner as claimed in claim 1, wherein
an outermost portion of the auxiliary rotation member is extended
outward further than an outermost portion of the main rotation
member to be contactable with a floor.
9. An upright type vacuum cleaner comprising: a body; a motor
accommodation part accommodating a motor generating a vacuum
pressure, in communication with the body; and a wheel member
provided in the motor accommodation part, in contact with a
floor.
10. The upright type vacuum cleaner as claimed in claim 9, wherein
the wheel member is configured to surround an outer circumferential
surface of the motor accommodation part and the wheel member
comprising comprises, a main rotation member rotatably provided in
the motor accommodation part; and an auxiliary rotation member
provided in the main rotation member, having a predetermined
rotational direction different from a rotational direction of the
main rotation member.
11. The upright type vacuum cleaner as claimed in claim 9, wherein
the plurality of the wheel members are provided in an outer
circumferential surface of the motor accommodation part, movable in
a movement direction of the body.
12. The upright type vacuum cleaner as claimed in claim 9, wherein
the motor accommodation part is rotatably provided in the body and
the wheel member comprises a roller-shaped auxiliary rotation
member arranged to be rotatable in a predetermined rotational
direction from a rotational direction of the motor accommodation
part.
13. The upright type vacuum cleaner as claimed in claim 9, further
comprising: a supporting leg extendedly provided in a rear portion
of the body; and a wheel member rotatably provided in the
supporting leg, the wheel member comprising: a main rotation
member; and an auxiliary rotation member rotatably provided in the
main rotation member, having a predetermined rotational direction
different from a rotational direction of the main rotation
member.
14. The upright type vacuum cleaner as claimed in claim 9, further
comprising: a suction nozzle connected with the body; and a wheel
member provided in the suction nozzle, the wheel member comprising:
a main rotation member; and an auxiliary rotation member rotatably
provided in the main rotation member, having a predetermined
rotational direction different from a rotational direction of the
main rotation member.
Description
[0001] This application also claims the benefit of U.S. Provisional
Application Ser. No. 61/264,228, filed on Nov. 24, 2009, the
contents of which are hereby incorporated by reference in their
entirety.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates to an upright type vacuum
cleaner, more specifically, to an upright type vacuum cleaner that
includes a body or suction nozzle having an efficient direction
change.
[0004] 2. Discussion of the Related Art
[0005] Vacuum cleaners are home appliances that are able to suck
external dust by using a vacuum pressure generated by a motor
provided in each of their bodies.
[0006] Such vacuum cleaners may be categorized based on their
shapes into canister types and upright types.
[0007] In an upright type vacuum cleaner, a body and a suction
nozzle are connected by a predetermined suction hose. If a user
moves the suction nozzle by using a handle provided in the suction
hose, the body will move correspondingly.
[0008] That is, such the upright type vacuum cleaner includes the
body and the suction nozzle which are connected with each other
such that the user may vacuum-clean, with dragging the body.
[0009] According to a conventional upright type vacuum cleaner, a
wheel member is rotatably provided in a body. If the user pulls the
body, the wheel member rolling-moves and the body moves
correspondingly.
[0010] However, the wheel member is determined to be rotatable only
forward and rearward. In case of making left or right turning, the
wheel member has a limited rotation radius and as a result, the
user may feel inconvenient when trying to change the movement
direction of the body quickly.
[0011] Especially, in case of meeting an obstacle when pulling the
body, the user may have the above inconvenience because of the
weight of the body.
SUMMARY OF THE INVENTION
[0012] To solve the problems, an object of the present invention is
to provide an upright type vacuum cleaner having a movement
direction changed smoothly and quickly as necessary during the
movement.
[0013] To achieve these objects and other advantages and in
accordance with the purpose of the invention, as embodied and
broadly described herein, a upright type vacuum cleaner includes a
body; a wheel member provided in the body, the wheel member
including a main rotation member rotatably provided in the body;
and an auxiliary rotation member rotatably provided in the main
rotation member to be rotated in a predetermined rotational
direction different from a rotational direction of the main
rotation member.
[0014] In another aspect of the present invention, an upright type
vacuum cleaner includes a body; a motor accommodation part
accommodating a motor generating a vacuum pressure, in
communication with the body; and a wheel member provided in the
motor accommodation part, in contact with a floor.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings, which are included to provide
further understanding of the disclosure and are incorporated in and
constitute a part of this application, illustrate embodiments of
the disclosure and together with the description serve to explain
the principle of the disclosure.
[0016] In the drawings:
[0017] FIG. 1 is a perspective view illustrating an upright type
vacuum cleaner according to an exemplary embodiment of the present
invention;
[0018] FIG. 2 is a side-sectional view illustrating the upright
type vacuum cleaner;
[0019] FIG. 3 is a perspective view illustrating a first wheel
member of a wheel member provided in the upright type vacuum
cleaner;
[0020] FIG. 4 is a perspective view illustrating a second wheel
member of a wheel member provided in the upright type vacuum
cleaner;
[0021] FIG. 5 is a plane view illustrating a movement direction of
the upright type vacuum cleaner, seen below;
[0022] FIG. 6 is a perspective view illustrating an upright type
vacuum cleaner according to another embodiment of the present
invention;
[0023] FIG. 7 is a front view illustrating a motor accommodation
part and a wheel member according to a first embodiment applied to
the upright type vacuum cleaner of FIG. 6;
[0024] FIG. 8 is a front view illustrating a motor accommodation
part and a wheel member according to a second embodiment applied to
the upright type vacuum cleaner of FIG. 6; and
[0025] FIG. 9 is a front view illustrating a motor accommodation
part and a wheel member according to a third embodiment applied to
the upright type vacuum cleaner of FIG. 6.
DETAILED DESCRIPTION OF THE INVENTION
[0026] As follows, an exemplary embodiment of the present invention
will be described in the accompanying drawings.
[0027] As shown in FIG. 1, an upright type vacuum cleaner according
to the exemplary embodiment of the present invention includes a
body 10 including a dust collection device and a dust separation
device mounted therein and a suction nozzle 20 connected to the
body 10.
[0028] A wheel member 100 is provided in each of a lower side
portion of the body 10 and the suction nozzle 20. Here, the wheel
member 100 may be provided only in the body 10.
[0029] The wheel member mounted to the suction nozzle 20 will be
referenced to as a first wheel member 110 and the wheel member
mounted to the body 10 will be referenced to as a second wheel
member 120.
[0030] Here, the size of the first wheel member 110 may be smaller
than that of the second wheel member 120. The first wheel member
110 and the second wheel member 120 include a main rotation member
111 and 121 and an auxiliary rotation member 112 and 122,
respectively.
[0031] The main rotation member 111 and 121 may be rotated toward a
forward/rearward direction of the body and suction nozzle 20 and
the auxiliary rotation member 112 and 122 may be rotated toward a
different direction from the rotational direction of the main
rotation member 111 and 121.
[0032] That is, the rotational direction of the auxiliary rotation
member may be orthogonal or diagonal with respect to the rotational
direction of the main rotation member 111 and 121.
[0033] Here, the first wheel members 110 may be arranged inside the
suction nozzle 20, spaced apart a predetermined distance from each
other, not to be exposed outside. The second wheel members 120 may
be arranged in body opposite side portions of the body 10, exposed
outside.
[0034] As shown in FIG. 2, the suction nozzle 20 is located in
front of the body 10 and thus the first wheel members 110 may be
located approximately in front of the second wheel members 120.
[0035] Rotational shaft supporters 113 and 123 rotatably coupled to
both of the body 10 and the suction nozzle 20 are formed in centers
of the main rotation members 111 and 121 of the first and second
wheel members 110 and 120, respectively, to rotatably support the
first wheel member 110 and the second wheel member 120.
[0036] As shown in FIG. 3, the main rotation member 110 of the
first wheel member 110 is provided in a disk shape and partition
walls 115 are provided in the main rotation member 11.
[0037] Accommodation parts 114 are provided between the partition
walls 115 to accommodate the auxiliary rotation members 112 therein
rotatably and the auxiliary rotation member 112 accommodated in the
accommodation part 114 is rotatably coupled to the partition wall
115.
[0038] The partition wall 115 is extended outward from the
rotational shaft supporter 113 and an end of the partition wall 115
is divided in two ways to disperse the load in case of contacting
the floor.
[0039] The auxiliary rotation members 112 may be arranged in both
side portions of the main rotation member 111 in two lines. One of
the auxiliary rotation members 112 arranged in a predetermined line
may be alternative with respect to another one arranged in the
other line.
[0040] This is because it is preferable that the auxiliary rotation
members 112 are in contact with the floor continuously.
[0041] An outermost portion of the auxiliary rotation member 112
may be extended outward further than an outermost portion of the
main rotation member 111.
[0042] Here, FIG. 3A shows four auxiliary rotation members arranged
in the main rotation member 111 and FIG. 3B shows three auxiliary
rotation members 112 arranged in the main rotation member 111.
[0043] As the number of the auxiliary rotation members 112 is
smaller, the size of each auxiliary rotation member may be larger
correspondingly.
[0044] In case three or four auxiliary rotation members 112 are
mounted to the main rotation member 111 in the first wheel member
110, the shape of each auxiliary rotation member may be like Rugby
ball or raised pot to make the first wheel member 110 rotated
smoothly.
[0045] As shown in FIG. 4, the second wheel member 120 includes the
main rotation member 121 formed in a disk shape and an auxiliary
rotation member 122 rotatably provided in a circumferential portion
of the main rotation member 121.
[0046] Accommodation parts 124 are provided in the circumferential
portion of the main rotation member 1221 to accommodate the
auxiliary rotation members 122. The auxiliary rotation members 122
are arranged to be accommodated in the accommodation parts 124,
respectively, spaced apart a predetermined distance from each
other.
[0047] As mentioned above, the rotational supporter 123 may be
provided in a center of the main rotation member 121.
[0048] The auxiliary rotation members 122 directly contact with the
floor in the second wheel member 120 and thus an outermost portion
of the auxiliary rotation member 122 may be extended outward
further than an outermost portion of the main rotation member
121.
[0049] This is because the rotational directions of the main
rotation member 121 and the auxiliary rotation members 122 should
be changed quickly as mentioned above.
[0050] Each auxiliary rotation member 122 arranged in the second
wheel member 120 may have a cylinder shape having a regular
diameter in comparison to a diameter of the auxiliary rotation
member 112 provided in the first wheel member 110 shown in FIG.
3.
[0051] This is because a rate between the length of the auxiliary
rotation member 112 of the first wheel member 110 and the
circumference of the first wheel member 110 is different from a
rate between the length of the auxiliary rotation member 122 and a
circumference of the second wheel member 120.
[0052] That is, the length of the auxiliary rotation member 112 of
the first wheel member 110 shown in FIG. 2 is approximately
1/7.about.1/8 of the overall circumference of the first wheel
member and the length of the auxiliary rotation member 122 of the
second wheel member 120 shown in FIG. 4 is 1/20.about. 1/25 of the
circumference of the second wheel member 120.
[0053] As the circumference of the wheel member is different from
the length of the auxiliary rotation member more noticeably; the
shape of the auxiliary rotation member may be a cylindrical
roller.
[0054] Here, the body may be movable freely along `A` that is a
rotational direction of the main rotation member 121 and `B` that
is a rotational direction of the auxiliary rotation members 122 and
along opposite directions to theses directions. If the auxiliary
rotation members 122 are arranged in a diagonal direction, the body
may be movable freely in more directions.
[0055] FIG. 5 is a diagram illustrating movement operation of the
upright type vacuum cleaner. FIG. 5A illustrates the upright type
vacuum cleaner moving forward and rearward.
[0056] If the user moves the vacuum cleaner forward or rearward,
holding the body 10, the first wheel member 110 mounted in the
suction nozzle 20 and the second wheel member 120 mounted in the
side portion of the body 10 will be moved forward and rearward by
the force applied by the user.
[0057] At this time, the main rotation members 111 and 121 are
rotated in a forward and rearward direction, with the auxiliary
rotation members 112 and 122 mounted in the first and second wheel
members 110 and 120 and then the first and second wheel members 110
and 120 are rotated toward the forward and rearward direction of
the body 10.
[0058] As shown in FIG. 5B, if the user pulls the body 10 in a
leftward and rightward direction, the auxiliary rotation members
112 and 122 of the first and second wheel members 110 and 120 in
contact with the floor will be rotated toward the leftward or
rightward direction.
[0059] As a result, the body 10 and the suction nozzle 20 may be
moveable in the leftward or rightward direction.
[0060] Because of that, the inconvenience of rotating the body and
the suction nozzle 20 along a limited rotation radius is solved if
the movement direction of both of the body 10 and the suction
nozzle 20 is changed.
[0061] This embodiment presents that the body 10 and the suction
nozzle 20 are movable in forward/rearward and leftward/rightward
directions and the present invention is not limited thereto. The
body 10 and the suction nozzle 20 may be movable in a diagonal
direction with respect to the forward/rearward direction according
to the installation direction of the auxiliary rotation members 112
and 122.
[0062] FIG. 6 is a diagram illustrating an upright type vacuum
cleaner according to another embodiment of the present
invention.
[0063] The upright type vacuum cleaner according to this embodiment
includes a body 30, a suction nozzle 40, a suction tube 41
connecting the suction nozzle 40 with the body 30 and a dust
collection device 42 mounted in the body 30.
[0064] A suction motor (not shown) for generating a vacuum pressure
and a motor accommodation part 44 are provided between the body 30
and the suction nozzle 40.
[0065] A supporting leg 50 is provided in a lower rear portion of
the body 30 to support the body.
[0066] A wheel member 200 is mounted to each of the suction nozzle
40 and the supporting leg 50. for convenience sake, the wheel
member 200 mounted in the suction nozzle 40 will be referenced to
as a first wheel member 210 and the wheel member mounted in the
supporting leg 50 will be referenced to as a second wheel member
220.
[0067] Here, the first wheel member 210 includes a main rotation
member 211 guiding the forward/rearward movement of the body and
the suction nozzle and an auxiliary rotation member 212 guiding the
body and the suction nozzle toward a different direction from the
above forward/rearward movement.
[0068] The second wheel member 220 includes a main rotation member
221 guiding the forward/rearward movement of the body and the
suction nozzle and an auxiliary rotation member 222 guiding the
body and the suction nozzle toward a different direction from the
above forward/rearward direction.
[0069] Here, the configurations of the main rotation members 211
and 221 of the first and second wheel members 210 and 220 and the
configuration of the auxiliary rotation members 212 and 222 are
substantially identical to the configurations shown in FIGS. 3 and
4 and detailed description thereof will be omitted accordingly.
[0070] According to FIG. 6, a rotational direction of the auxiliary
rotation members 212 and 222 is referenced to as `B` that is a
leftward/rightward direction to be orthogonal with respect to a
forward/rearward direction of the body.
[0071] However, the rotational direction of the auxiliary rotation
members 212 and 222 is not limited to the leftward/rightward
direction and the auxiliary rotation members 212 and 222 may be
rotatable toward a diagonal direction with respect to `A` or `B` to
move the body and the suction nozzle 40.
[0072] A wheel member 300 is provided in an outer circumferential
surface of the motor accommodation part 44 and the wheel member 300
includes a main rotation member 310 rotatably provided toward `A`
in a ring shape and an auxiliary rotation member 320 rotatably
provided in the main rotation member 310, rotatable toward a
different rotational direction from a rotational direction of the
main rotation member 310.
[0073] The plurality of the auxiliary rotation member 320 may be
provided along the main rotation member 310 and the auxiliary
rotation member 320 may be roller-shaped.
[0074] FIG. 7 is a diagram illustrating the wheel member 300
provided in the motor accommodation part 44 in detail.
[0075] The wheel member 300 is arranged along an outer
circumferential surface of a center portion of the motor
accommodation part 44. The shape of the motor accommodation part 44
is extendedly raised more and more toward the center from a left
side enough to contact with the floor. If the wheel member 300 is
mounted in such the raised center portion, the rotational movement
may be performed smoothly.
[0076] The main rotation member 310 of the wheel member 300 is
arranged rotatably along the outer circumferential surface of the
center of the motor accommodation part 44.
[0077] The main rotation member is movable toward a
forward/rearward (A) direction that is corresponding to the
forward/rearward direction (B) of the body (30, see FIG. 6).
[0078] The auxiliary rotation member 320 is rotatably provided in
the main rotation member 310 and the rotational direction of the
auxiliary rotation member 320 is arranged different from the
rotational direction of the main rotation member 310.
[0079] The auxiliary rotation member 320 is roller-shaped and the
plurality of the auxiliary rotation members 320 are arranged spaced
apart a predetermined distance from each other.
[0080] Here also, the auxiliary rotation members 320 are directly
in contact with the floor. If the user moves the body toward `A`,
the auxiliary rotation members 320 is rotated, with generating
friction against the floor, to rotate the main rotation member 310
connected thereto toward `A`.
[0081] At this time, the auxiliary rotation members 320 are rotated
not at all or little toward `B` and the rotational movement of such
the auxiliary rotation members 320 toward `B` may give no effect to
the rotational movement of the main rotation member 310 toward
`A`.
[0082] As the main rotation member 310 is rotatably provided in the
motor accommodation part 44, the motor accommodation part 44 may be
fixed to the body.
[0083] For such the operation, an outermost portion of the
auxiliary rotation member 320 may be extended outward further than
an outermost portion of the main rotation member 310.
[0084] If the user moves the body toward `B` direction, the
auxiliary rotation members 320 are rotated toward `B` direction.
When the auxiliary rotation members 320 are rotated in `B`
direction, the main rotation member 310 are rotated little or not
at all in `B` direction.
[0085] Such the movement of the main rotation member 310 may give
no effect to the rotational movement of the auxiliary rotation
members 320 toward `B` direction.
[0086] FIG. 8 is a diagram illustrating a wheel member mounted in
the motor accommodation part 44 according to another embodiment of
the present invention.
[0087] The wheel member includes an auxiliary rotation member 330
provided in an outer circumferential surface of the motor
accommodation part 44 in a roller-shape.
[0088] The plurality of the auxiliary rotation members 330 are
provided and they are arranged spaced apart a predetermined
distance from each other with respect to the circumferential
surface of the motor accommodation part 44.
[0089] Here, it is preferable that the motor accommodation part 44
itself is rotatable in a forward/rearward direction and the
auxiliary rotation members 330 are rotated in a different
rotational direction from a rotational direction of the motor
accommodation part 44.
[0090] That is, according to the drawing, the rotational direction
of the motor accommodation part 44 is referenced to as `A` and the
rotational direction of the auxiliary rotation member 330 is
referenced to as `B`. If the user pushes or pulls the body in `A`
direction, the motor accommodation part 44 is rotated along this
direction to help the movement of the body.
[0091] At this time, the auxiliary rotation members 330 maintain
contact with the floor, moving along `A` direction.
[0092] In case the motor accommodation part 44 is rotated in a
forward/rearward direction, the auxiliary rotation members 330
contact with the floor sequentially and thus the motor
accommodation part 44 is rolling-moved forward or rearward to move
the body.
[0093] In the meanwhile, if the user moves the body in `B`
direction, the auxiliary rotation members 330 provided in the motor
accommodation part 44 are rotated in `B` direction that is a
leftward or rightward direction.
[0094] At this time, the motor accommodation part 44 is not in
contact with the floor and the auxiliary rotation members 330 are
rotated in `B` direction. Because of that, the motor accommodation
part 44 may be rotated forward or rearward little or not at
all.
[0095] As a result, the rotational movement of the auxiliary
rotation members 330 enables the body to move in `B` direction
smoothly.
[0096] This embodiment presents `A` and `B` directions are
orthogonal to each other and these directions are not limited to be
orthogonal. `A` and `B` directions may be diagonal to each
other.
[0097] Thus, the rotational direction of the auxiliary rotation
members 330 is arranged different from the rotational direction of
the main rotation member (310, see FIG. 7) and the motor
accommodation part 44 such that the body may be movable toward a
direction intended by the user.
[0098] As shown in FIG. 9, the auxiliary rotation members 340 may
be arranged in a single line and they may be arranged in plural
lines to make the rotational movement of the auxiliary rotation
members 340 performed efficiently.
[0099] The arrangement of the auxiliary rotation members 340 in the
plural lines may be applicable to the embodiment shown in FIG. 7
equally.
[0100] The rotational movement of the auxiliary rotation members
330 arranged in the plural lines and the rotational movement of the
main rotation member (310, see FIG. 7) and the rotational movement
of the motor accommodation part 44 are substantially identical to
the embodiments shown in FIGS. 7 and 8 and detailed description
thereof will be omitted accordingly.
[0101] The present invention has following advantageous
effects.
[0102] According to the upright type vacuum cleaner, change of the
movement direction may be performed quickly and efficiently.
[0103] Specifically, if a user intends to move the body in a
different direction from a current movement direction while moving
the body by using the rotational movement of the main rotation
member and the motor accommodation part, the user applies a force
to the body toward the wished direction and he/she can change the
direction of the body smoothly by the rotation of the auxiliary
rotation members.
[0104] Furthermore, even if the body colliding with an outside
object such as a table or book shelf during the movement of the
upright type vacuum cleaner, the movement direction of the body may
be guided quickly in a different direction momentarily after the
collision. As a result, the body is prevented from being upturned
by the collision.
[0105] It will be apparent to those skilled in the art that various
modifications and variations can be made in the present invention
without departing from the spirit or scope of the invention. Thus,
it is intended that the present invention cover the modifications
and variations of this invention provided they come within the
scope of the appended claims and their equivalents.
* * * * *