Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
.~Z:~28~
A DUST COLLECTOR
Field of the Invention
This invention concerns a dust collector. It relates
to a cleaning apparatus which utilizes moving and pressurized air
generated by a blower to collect or suck in dehris such as fallen
leaves and dust on the ground.
Background of the Invent on
Previously known types of dust
collectors have posed a problem owing to an
împerfect dust collecting section. The transportation of the
collected dust, etc., was also inconvenient. Further, there
was another drawback in that dust firmly lodged in the ground
surface and fallen leaves, etc./ which were tangled with grass,
etc., were difficult to dislodge and remove with such apparatus.
Summary of the Invention
This invention is aimed at improving the above-
mentioned disadvantages.
In one aspect the invention provides a collector
system for dust and debris comprising:
(a) first means defining a blow passage and a suction
passage, said passages being in confluent relation
with each other so that movement of air through said
blow passage generates a negative pressure in said
suction passage,
~,
~'1 ,.1`:~
,
,
-- 2 --
(bl a dust collecting container having a separator for
separating air from dust associated t~erewith,
(c~ flexible suction hose means for carrying dust from a
source of dust and de~ris,
(d) further means prov.iding a path of communication between
said suction hose means, said suction passage of said
first means and the dust collecting container whereby
dust,etc.,travell;ng through said flexible suction hose
is eventually deposited in said container with said
separator effecting a separation of the dust from the
air.
In one embodiment of the invention said first means
comprises a confluent pipe having a blow outlet through which
the confluent flows pass; said fur~her means comprising a
suction port of said confluent pipe to which said suction hose
means is connected and a flexible blow hose having one end
connected to said blow outlet and its opposite end connected
to the dust collecting container to provide said path of
communication.
In a further embodiment of the invention said first
means comprises an ejector having said blow passage and said
suction passage defined therein, said suction hose means com-
prising first and second sections, the first section being
connected between said suction passage and said collecting
container to apply a negative pressure thereto, and the second
section being also connected to said collecting container to
carry dust,etc.,thereinto from the source under the influence
of the negative pressure in said contai.ner.
Other and further features and advantages of the
present invention will be apparent from the following description
and accompanying drawings which, by way of illustration, show
preferred embodiments of the present invention and the principle
thereof.
-` ~Z;12~)Z
-- 3 --
Brie~ De~s;cripti;on of t;he Drawings
Fig. 1 is a pe~spective view of a first embodiment
of the inv~ntion;
Fig. 2 is an exploded view thereo~;
Fig. 3 is a cross section view of the container lid;
Fig~ 4 is a perspective view of a second embodiment
of the invention;
Fiy. 5 is an exploded vi~w thereof;
Fig. 6 is a section view of the ejector noz21e
system;
~ig. 7 is a perspective view of a third embodiment
of the invention;
~ig. 8 is a perspective view of a ourth embodiment
of the invention;
Fig. 9 is a side elevation view of a fifth embodiment
of the invention; and
Fig. 10 is a perspective view of the intake nozzle
of the e~bodiment of Fi~. 9.
Description of the Preferred Embodiments
In the following, this invention will be described
by referring to said drawings.
Figs~ 1 and 2 show a first embodiment of this inven-
tion. Component 3 is a blower fox producing a stream of
pressuri2ed air. The blower 3 incorporates an engine, fan~ etc.
(not shown in the drawings) and is provided with a discharge
port 5 for the pressurized air. The discharge port 5 is
detachably connected to the air inlet 11 which forms an end
of the blow passage 9 of the confluent pipe 7. The blow passage
9 is provided at its other end with blow outlet 13. The blow
passage 9 and dust collecting suction passage 15 are shaped in
such a manner that flows passing into the collecting suction
passage 15 and the blow passage 9 are combined together and pass
outwardly of blow outlet 13~ The high velocity air passing
outwardly from blow passaqe 9 creates a suction effect causing
air to be drawn into passage 15 along with the collected debris.
An end of the dust collecting passage 15 serv~s to define a
suction port 17.
-3a-
The suction port 17 of confluent pipe 7 is detachably
connected to a suction hose 21 to the opposite end of which an
inlet nozzle 19 is fitted. The suction hose 21 is of the
corrugated wall variety to accommodate ready bending or flexture.
The blow outlet 13 of the confluent pipe 7 is
detachably fitted to an end of the blow hose 23, which is also
of the corrugated wall variety as is the suction hose 21.
The blow hose 23 is detachably fitted at its other
end to a discharge nipple 27 which is provided on the top face
(Fig. 3) of a lid 25 for container 41. The lid 25 has a
circular shape, and its outer circ~ference is provided with an
annular ledge 29. The lid 25 is provided with an opening 31
~29L~ 2
_ 4
which communicates with nipple 27~ ~id 25 also has a semi-
circular-shaped top open~ng 33 and a handle 35. The top
opening 33 of the lid 25 is provided with a porous member 37
for filtering out dust.
Namely, said blastpipe 23 and porous material 37--
which is provided at the top opening 33 of said lid 25 in
order to connect throughout the ~nterior of said lid 25--compose
a separator 39~
The annular ledge 29 of the lid 25 functions to
provide for a seal around the top edge opening 43 of the dust
collecting container 41 upon whic~ the lid 25 is fitted when
in use. The dust collecting container is fitted with carxying
handleq 49~ -
The dust collecting container 41 has a dust collecting
bag 45 in its interior. The top marginal edge 47 of the dust
collecting bag 45 dur~ng use, is trapped between the ledge 29 of
the lid 25 and top edge opening 43 of the dust collecting
container 41. As a result the interior of the dust collecting
bag 45 communicates with the under surface sf the lid 25.
The operation will now be descxibed. The operator
starts the blower 3 and then points the suction nozzle 19 at
the dust to perform dust collecting operation. The sucked-in
air and dust travel through suction hose 21 and then are sent
through the blow hose 23 into the container 41. The exhaust
air is discharged to the atmosphere through the porous member
37 provided in opening 33 of the lid 25, with the dust being
collected in the dust collecting bag 45. The direction in which
the discharged wind and dust enter container 41 from blow hose
23 is opposite to the dixection in which the air is discharged
via the porous member 37 to the atmosphere.
After confirming that the dust collecting bag 45 is
filled up with dust, the operator stops the blower 3 and
detaches the lid 25 from the dust collecting container 41. Then,
simply ~y disposing of the filled-up dust collecting bag 45, the
dust collecting operation can be completed.
In the second embodiment shown in Figs~ 4, 5 and 6,
an ejector 50 is fitted detachably to the dischaxge port 5 of
the blower 3. This ejector 50 is composed of a main body 59
and inlet tube 61 both of which have a cylindrical form as
shown in Fig. 5. The ~nternal circumference of the end 63
which constitutes one end of said main body 59 is screwed to
the outer circumference of tube 61. This tube 61 and the main
body 59 constitute the blow passage 65.
In this embodiment, the external surface of the lid
25 is provided with a dust inlet port 55 which is connected to
the lid 25.
The bottom end of the lower side of the connecting
pipe 27, is detachably connected to a fitting port 61 of a
separator 60 made of porous material.
The dust inlet port 55 of the lid 25 is detachably
fitted with a flexible suction hose 70 to which a nozzle 56 is
fitted detachably.
The operation of this embodiment will now be described.
The operator starts ~he blower 3 and then directs the nozzle 56
at the dust to perform a dust collecting operation. Since the
air from the blower 3 is discharged at high speed khrough the
blow passage 65 and generates a negative pressure in the suction
passage, a dust collectiny operation is possible simply by
pointing the nozzle 56--which is connected to the flexible hose
70, the interior of the dust collecting container 41 and flexible
tube 23--at the dust. ~t this time dust and air which have been
sucked in through the nozzle 56 is led through the flexible hose
70 into the dust collecting container 41. Then the sucked-in
air is discharged from the separating section of the separator
60 fitted to the connecting pipe 27 of the lid 25 by way of the
flexible tube hose and ejector S0, with the sucked-in dust
remaining in the dust collecting container 41.
In the third embodiment shown in Fig. 7, the blower
3 is mounted on an undexframe 80 having wheels 83 and fitted
with an upright handle 81. ~Jumbers 23, 27 and 85 indicates a
detachable suotion hose, a discharge nipple and a copper box
with a blow-outlet 87 whose front top sur~ace is slanted down-
IL~80Z
- 6 -
ward, respectively. It is also possible to detach the suction
hose 23, fit a nozzle to this tip, extend the nozzle tip to
make it an intra-chamber passage, and fit a dust collecting bag
to its tip.
In the fourth embodiment shown in Fig. 8, blower 3
is connected to the blvw hose 95, and the other end of the
blow hose 95 is fitted detachably to one end of a tube 97
consisting of heat~resistant material. The other end of the
tube 97 is fitted detacha~ly to one end of a metallic pipe 99,
and the other end of the metallic pipe 99 is fitted detachably
to burner 101. At this time, hoth the metallic pipe 99 and
heat-resistant hose 97 should have sufficient lengths for
preventing heat from being propagated to the blow hose 23.
Aforesaid burner 101 is molded from heat-resistant
material and consists of the main body 113, connecting portion
115 which is the hollow portion of the main body, legs 117,
and a plural number of holes (not shown in the drawing). This
burner 101 is inserted into the dust. When the blower is
driven, air is discharged from the holes of the air burner 151,
thereby promoting the incineration of the dusto
The fifth emhodiment is sh~wn in Fig~. 9 and 10. In
' the figures, a nozzle 139 is fitted detachably to the tip of
the blow pipe 137. The nozzle 139 has a triangle shape viewed
from above and has a wide opening 131 at its tip. At the
lower-side part of the opening 131 of the nozzle 139, a plate-
shaped scraper 140 having a pointed tip 141 is fitted detachably
to nozzle 139.
At the base 143 of said scraper 140, a plural number
of fitting holes 145 are provided, which are used for securely
fixing the scraper 140 to the nozzle 139. These fitting holes
145 correspond to and agrea with threaded fitting holes 147
provided at the lower side of the opening 131 o the nozzle 139,
and the scraper 140 is fitted securely to the nozzle 139 by
means of ~itting screws lA9o
When cleaning oper~tion is to be performed by means
of the aoresaid construction, the operator grips the handle 81
~2~28~;~
-- 7 -- .
with one hand and the blow pipe 137 with the other and scxapes
off the dust, etc., by means of the scraper 140. This dust is
blown and collected by pressurized w;nd jetted out of the
opening 140 of the nozzle 139.
Although a preferred form of the present invention
has been illustrated and described, it should be understood
that the device is capable of modification by one skilled in
the art without departing from the principles of the inventionn
Accordingly, the scope of the invention is to be limited only
by the claim appended hereto.
