Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
1999-03-12
2001-02-20
Till, Terrence R. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S364000
Reexamination Certificate
active
06189180
ABSTRACT:
BACKGROUND OF THE INVENTION
(1) Field of the Invention
The present invention relates to improvement of the suction tool for an electric vacuum cleaner.
(2) Description of the Prior Art
As an example of a suction tool for an electric vacuum cleaner, disclosed in for example, Japanese Utility Model Publication Hei 3 No. 41,634 is a configuration which as shown in
FIGS. 1 and 2
includes: inside a suction tool body
33
made up of upper and lower casings
31
and
32
being butted to each other, a suction inflow passage
36
for conducting the suction air stream from a suction port
34
which is an opening in the lower surface of suction tool body
33
, to the vacuum cleaner (not shown) via a joint tube
35
; a motor
37
; and a rotary brush
40
which is driven to rotate about a support shaft
39
through a belt
38
by the driving force of the motor
37
.
Since, in the above suction tool, rotary brush
40
rotates about support shaft
39
, a space which is greater than the dimension of the radius of rotary brush
40
was needed around the brush inside suction tool body
33
, thus increasing the size of the suction tool. There was also a risk of danger in that if the hand touched the rotary brush
40
, the fingers might be drawn into the tool by the brush. Further, there was an area which the bristles of rotary brush
40
could not reach, and the tool had a poor scrubbing effect of dust and dirt in this area.
SUMMARY OF THE INVENTION
The invention has been devised in order to solve the above problems, and it is therefore an object of the invention to provide a suction tool for an electric vacuum cleaner which can be itself compact and safer. It is another object of the invention to provide a suction tool for an electric vacuum cleaner which is improved in scrubbing efficiency of dust and dirt.
The invention has been achieved to attain the above objects, and the gist of the invention is as follows:
In accordance with the first aspect of the invention, a suction tool for an electric vacuum cleaner includes:
a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port opening on the bottom face thereof, to the vacuum cleaner body; and
a movable brush which is provided in the middle of the suction inflow passage inside the suction tool body and is driven by a driver device,
wherein the movable brush which is driven by a motor or turbine, is arranged so as to sway and reciprocate back and forth about a support shaft, perpendicular to the direction of the suction inflow stream.
In accordance with the second aspect of the invention, a suction tool for an electric vacuum cleaner includes:
a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port opening on the bottom face thereof, to the vacuum cleaner body; and
a movable brush which is provided in the middle of the suction inflow passage inside the suction tool body and is driven by a driver device,
wherein the movable brush which is driven by a motor of turbine, is arranged so as to linearly reciprocate in the left and right directions relative to the inflow direction of the suction air stream.
In accordance with the third aspect of the invention, in the electric vacuum cleaner having the above first or second feature, the movable brush is detachable and has a number of bundles of bristles on one of the upper or lower sides and a blade on the other side.
Next, in accordance with the fourth aspect of the invention, a suction tool for an electric vacuum cleaner includes:
a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port opening on the bottom face thereof, to the vacuum cleaner body; and
a rotary brush which is provided in the middle of the suction inflow passage inside the suction tool body and is driven by a driver device,
wherein a second brush which sways and reciprocates back and forth about a support shaft, perpendicular to the direction of the suction inflow stream, is arranged in front of the rotary brush which is driven by a motor or turbine.
In accordance with the fifth aspect of the invention, a suction tool for an electric vacuum cleaner includes:
a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port opening on the bottom face thereof, to the vacuum cleaner body; and
a rotary brush which is provided in the middle of the suction inflow passage inside the suction tool body and is driven by a driver device,
wherein a second brush which sways and reciprocates about a support shaft in the left and right directions perpendicular to the inflow direction of the suction air stream, is arranged at a side of the rotary brush which is driven by a motor or turbine.
In accordance with the sixth aspect of the invention, a suction tool for an electric vacuum cleaner includes:
a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port opening on the bottom face thereof, to the vacuum cleaner body; and
a movable brush which is provided in the middle of the suction inflow passage inside the suction tool body and is driven by a driver device,
wherein the movable brush is supported movably inside suction tool body so that the brush is arranged along, and can sway back and forth relative to, the inflow direction of the suction air stream, and the driver device comprises a linear motor or solenoid.
In accordance with the seventh aspect of the invention, a suction tool for an electric vacuum cleaner includes:
a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port opening on the bottom face thereof, to the vacuum cleaner body;
a movable brush which is provided in the middle of the suction inflow passage inside the suction tool body and is driven by a driver device;
an oscillator plate which has the movable brush at the lower end thereof and is pivoted inside the suction tool body so as to sway back and forth along the inflow direction of the suction air stream; and
a linear motor which constitutes the driver device, and operates so as to reciprocate a rod which is linked at one end thereof with the oscillator plate,
wherein the movable brush attached to the oscillator plate sways to perform cleaning, following the reciprocating motion of the rod due to the operation of the linear motor.
In accordance with the eighth aspect of the invention, in the suction tool for an electric vacuum cleaner having the above seventh feature, the driver device is constructed by a solenoid.
Further, in accordance with the ninth aspect of the invention, a suction tool for an electric vacuum cleaner includes:
a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port opening on the bottom face thereof, to the vacuum cleaner body;
a movable brush which is provided in the middle of the suction inflow passage inside the suction tool body and is driven by a driver device;
an oscillator plate which is pivoted inside the suction tool body so as to sway back and forth along the inflow direction of the suction air stream;
a sweeping member made from rubber, attached to the lower end of the oscillator plate;
a movable brush which is attached to the lower end of the oscillator plate behind the sweeping member so as to project downward; and
a linear motor or solenoid which constitutes the driver device and operates so as to reciprocate a rod which is linked at one end thereof with the oscillator plate,
wherein the movable brush attached to the oscillator plate sways to perform cleaning, following the reciprocating motion of the rod due to the operati
Hato Shigenori
Ishii Kiyoshi
Miyoshi Noriaki
Ohnishi Yuji
Yagi Mikio
Sharp Kabushiki Kaisha
Till Terrence R.
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