A vessel for decomposing garbage includes a garbage input port
and a stirrer for stirring the garbage. A lid is provided for opening
and closing the garbage input port. A hollow pipe is connected to
a blower and is disposed within the vessel for establishing an air
curtain that prevents the escape of odiferous gas through the garbage
input port. The blower is automatically actuated in response to
an opening of the lid.
What is claimed is:
1. A garbage decomposing apparatus including a vessel for receiving
garbage and a stirrer for stirring the garbage in the vessel, the
apparatus further comprising:
a lid for opening and closing a garbage input port provided at
an upper portion of said vessel;
an air blower actuated automatically in response to said lid being
a hollow, perforated pipe of annular configuration mounted on an
inside surface of a side wall of said vessel, said pipe communicating
with said blower for conducting said air flow and including circumferentially
distributed perforations arranged to direct respective streams of
the air flow generally radially inwardly for establishing an air
2. The apparatus according to claim 1 wherein said pipe is arranged
to direct said air flow across a cross section of said vessel.
The present invention relates to an apparatus for decomposing garbage,
more particularly to a garbage decomposing apparatus.
Generally, a garbage decomposing apparatus has a lid for opening
and shutting an input port used for depositing garbage the input
port formed in the upper portion of a decomposing vessel. In such
an apparatus, an offensive odor generated in decomposing garbage
leaks out through the input port, whenever a user opens the lid
to deposit garbage into the apparatus, thus to pollute the surroundings
and give an unpleasant feeling to the user.
An apparatus for decomposing garbage having an annular pipe installed
at the upper edge of a decomposing vessel is disclosed in Japanese
Utility Model Application Laid-Open Publication No. 61-67854. The
annular pipe is formed with a number of perforated holes opened
toward the center of a hopper to supply and inject water through
the holes to wash down garbage on the inner wall of the hopper.
However, the annular pipe does not serve for blocking outflow of
the offensive gas from the vessel at all.
Accordingly, it is an object of the present invention to block
the outflow of gas through an open lid of a garbage decomposing
SUMMARY OF THE INVENTION
According to the invention, there is provided a garbage decomposing
apparatus including a vessel for receiving garbage and a stirrer
for stirring the garbage in the vessel, comprising a lid for opening
and shutting a garbage input port provided in an upper portion of
said vessel; and a blower actuable in response to an opening of
said lid for forming an air-flow layer in said vessel to block an
outflow of gas formed in said vessel through said lid in open state.
The blowing means may be connected to a pipe formed with a number
of perforations for blowing air into said pipe. Here, the pipe is
annually disposed along the inner wall of said vessel to form said
air-flow layer having an air-flow directed to a center area from
the circumference of the vessel.
BRIEF DESCRIPTION OF THE DRAWINGS
Hereinafter the present invention will be explained in detail with
reference to the attached drawings.
FIG. 1 is a sectional vertical view of a garbage decomposing apparatus
according to the present invention.
FIG. 2 is a sectional view taken along line 2--2 in FIG. 1.
FIG. 3 is a sectional view taken along line 3--3 in FIG. 2.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 shows a sectional view of a garbage decomposing apparatus
according to the present invention. As shown in the drawing, a decomposing
vessel 1 for receiving garbage to be decomposed is provided with
a lid 2 for opening and shutting a garbage input port formed in
the upper portion of the vessel 1. A rotating agitator 3 for stirring
the garbage is disposed in the vessel 1. A container 5 for receiving
and supplying powdered preparations, consisting of microorganism
for biological decomposition of the garbage and pulverized wood
for promoting the biological decomposition, is also disposed in
the upper portion of the decomposing vessel 1. Within the decomposing
vessel 1, there is provided a heater 4 for heating the garbage.
A mechanism is installed adjacent to the lid 2 in the upper portion
of the vessel 1 for establishing an air flow layer.
That mechanism includes an annular pipe 11 formed with a number
of spaced perforations 15. The pipe 11 is installed along the inner
wall in the upper portion of the vessel 1. The perforations 15 are
opened toward the center of the vessel 1. At a side of the pipe
11, there is provided a blower 13 for blowing air into the pipe
When a user opens the lid 2 to deposit garbage into the vessel
1, a switch, which is not shown in the drawings, simultaneously
operates the blower 13 to blow air into the pipe 11. The air is
injected toward the center of the vessel 1 from the perforated holes
15 of the pipe 11 to form an air-flow layer, namely air curtain.
The air-flow layer blocks an outflow of gas form the vessel 1 and
thereby the offensive odor of the gas is prevented from leaking
out through the input port.
In the described and illustrated example, the air-flow layer is
formed to converge at the center of the vessel 1, but the pipe and
the perforations thereof could instead be arranged to form an air-flow
layer to converge at a gas discharge port 6, leading to an outside
area provided on the wall of the vessel, thereby to block an outflow
of the gas through the input port as well as to promote a discharging
of the offensive gas through the discharge port.
As described above, the garbage decomposing apparatus according
the the invention prevents effectively odor generated in decomposing
garbage from outflowing when the lid is opened.