Garbage can with garbage bags automatically deposited without manual handling

A garbage can having an outer can, an inner can to be contained and hung in the outer can normally closed by two half caps being opened by a lever with a pedal stepped down to open the two half caps outward with a adhesive bar thereof closing and opening an open upper end of a garbage bag adhered to the bars simultaneously, and a garbage bag roll being stored below the inner can on the bottom of the outer can supplying garbage bags one by one continuously through a slot in the bottom of the inner cap.

BACKGROUND OF THE INVENTION 
A commonly known garbage can shown in FIG. 1 comprises a can 1 with a 
elongate slot in its bottom, an extended body portion 11 under the bottom, 
two round projections 12, 13 respectively provided on two diametrically 
opposite inner walls of the extended body portion 11 for hanging a roller 
for a garbage bag roll 14. In using, the top end of the garbage bag roll 
14 is pulled through the slot upward to place an upper open end of one 
garbage bag of the roll 14 to be folded around the upper round edge of the 
can 1. After the first bag is filled full of garbage, it is taken off the 
can 1, with the bottom end torn from the next one wound around the garbage 
bag roll 14. 
However, this conventional garbage bag has undesirable features as follows. 
1. A garbage bag has to be manually handled to be folded with its upper 
open end around an upper circumferential edge of the can every time a bag 
is to be replaced. 
2. A punched cut line of a garbage bag is no so easy to be torn off when 
one bag is full and to be taken away from the can. 
3. A bag pulled and placed in the can is always open without a cap, liable 
to attract flies and mosquitoes to fly around garbage thrown in the bag, 
quite insanitary. 
SUMMARY OF THE INVENTION 
This invention has been devised to offer a kind of garbage can normally 
closed when not in use, and only opened by foot when to be used, to keep 
it very sanitary. 
One of the special feature of the garbage can in the present invention is 
that the two half caps and an upper end of a garbage bag are closed and 
opened at the same time without manual handling. 
Another special feature is the upper end of a garbage bag is closed 
substantially tight to prevent flies and mosquitoes to swarm around 
garbage stored in the bag. 
A main constructional advantage of the garbage can in the present invention 
is provision of a lever connected with a pedal to move two pairs of two 
connecting rods with bottom ends pivotally connected with the lever and 
upper ends pivotally connected with pivotal shafts of position means 
connected with two half caps normally closed an open upper side of an 
outer can containing an inner can hung around an inner circumferential 
groove of the outer can. When the pedal is pressed down by foot, the two 
half caps are swung outward with a respective adhesive bar adhering an 
upper end of a garbage bag to open the bag at the same time. A garbage bag 
is continuously pulled from a bag roll hung on a roller disposed below the 
inner can on the bottom of the outer can.

DETAILED DESCRIPTION OF THE INVENTION 
A garbage can with garbage bags automatically deposited without manual 
handling in the present invention, as shown in FIG. 2, comprises an outer 
can 2, a lever 3, and an inner can 7, and two half caps 60, 61 and two 
pairs of connecting rods 40, 41, 40', 41' as its main components. 
The outer can 2 is shaped preferably as a rectangular cross-section, having 
a rectangular opening in a bottom for a garbage bag roll 9 to pass 
through, a U-shaped supporter 21 on a central portion of the bottom, a 
coil spring 22 on a left side of the supporter 21 on the bottom, two round 
holes 23, 24, 23', 24' respectively in an upper portion of two opposite 
vertical side walls, a lever hole 25 in a lower portion of a left one of 
the two opposite side walls, a screw hole 26 beside the lever and near a 
corner, a round projection 27 on the inner side of a right one of the two 
opposite side walls in aligned location of the screw hole 26 in the left 
side wall, and a horizontal circumferential groove in an inner upper end 
of the outer can 2 for a circumferential flange of the inner can to engage 
hangingly. 
The lever 3 is provided to extend through the lever hole 25 in the left 
side wall of the outer can 2, having its intermediate portion pivotally 
pined with the U-shaped supporter 21 fixed on the bottom of the outer can 
and its outer end connected integrally with a pedal 30 for a foot to step 
on to press down the lever 3 for opening the two half caps 60, 61. In 
order to dispose the lever 3 in place, the lever hole 25, the spring 22 
and the U-shaped supporter 21 should be provided to align one another. 
The two pairs of two connecting rods, a first pair 40, 41, and a second 
pair 40', 41' are provided, having their bottom ends pivotally connected 
with two vertical sides of the lever 3, and two pairs of position means. 
In the preferred embodiment, the position means is a plate. A first pair 
of positioning means 50, 51, and a second pair 50', 51', are respectively 
attached to pivotal shafts 500, 510, and pivotal shafts 500', 510' to fit 
through the round holes 23, 24, 23', 24' in the outer can 2. And the two 
pairs of the pivotal shafts 500, 510, 500', 510' are pivotally connected 
with upper ends of the two pairs of two connecting rods 40, 41, 40', 41'. 
The position means plates 50, 51, and 50', 51' are connected to the 
connecting rods 40, 41, and 40', 41' by a pin which passes through a hole 
in the plates 50, 51, and 50', 51'. The hole is spaced from the pivotal 
shafts' central axis so that the connecting rods impart rotation to the 
pivotal shafts when the rods move up and down. 
The two half caps 60, 61 respectively have a curved upper surface, two 
lateral opposite sides, a vertical longitudinal side 600, 610 abutting the 
curved upper surface to contact with each other when the two half caps 60, 
61 are closed on the open upper side of the outer can, a hole in each of 
the two lateral opposite sides for receiving the pivotal shafts 500, 510, 
500', 510'. The two vertical sides 600, 610 have two vertical long slots 
601, 611 and adhesive long bars 602, 612 are provided to fit in the slots 
601, 611 for adhering an upper end of a garbage bag placed in the inner 
can 7 from below the bottom thereof. 
The inner can 7 is provided to be placed in the interior of the outer can 
2, being hung around the circumferential groove 28, having the same shape 
of the outer can but a smaller size than that of the outer can 2, a long 
slot 70 in a bottom for garbage bags to pass through upward from a garbage 
bag roll stored below the inner can 7 on the bottom of the outer can 2, 
and a flange 71 to hang around the circumferential groove 28. After the 
inner can 7 is hung on the outer can 2, there is a space between the 
circumferential walls of both cans 2, 7, being wide enough for the 
connecting rods 40, 41, 40', 41' to be disposed in the space. 
A screw button 8 is provided to thread in the screw hole 26 in the outer 
can 2 to support a roller for hanging a garbage bag roll 9 on the roller 
so as to be pulled upward through the slot 70 in the inner can 7. 
In assembling, as shown in FIG. 3, first, the lever 3 is inserted through 
the lever hole 25 to protrude through the U-shaped supporter 3 to be 
pivotally connected with a pin with the supporter 3. Next, the two pairs 
of two connecting rods 40, 41, 40', 41' are pivotally connected with both 
sides of the lever 3, and then the position means 50, 51, 50', 51' are 
pivotally connected with the top ends of the connecting rods 40, 41, 40', 
41' and the two half caps 60, 61 are closed on the outer can 2 and the 
pivotal shafts 500, 500', 510, 510' of the position means 50, 50', 51, 51' 
are inserted from an inner side through the holes 23, 23', 24, 24' of the 
outer can 2 and the holes of the two opposite side walls of the inner can 
7. After that, the inner can 7 is placed into the outer can 3, with the 
two half caps 60, 61 opened, and lastly, the garbage bag roll 9 with the 
roller is pushed through the opening 20 and one end of the roller is 
hooked by the round projection 27 and the other end thereof is screwed 
with the screw button 8 to secure the bag roll 9 with the roller so that 
the roll 9 can be pulled through the slot 70 in the inner can 7 for one 
garbage bag to be placed in the inner can 7 to receive garbage. 
In using, as shown in FIGS. 4 and 5, a user steps down the pedal 30 of the 
lever 3, which then compresses the coil spring 22 to move down the first 
pair of the connecting rods 40, 41 but move up the second pair of the 
connecting rods 40', 41'. Then the pivotal shafts 500, 510 of the position 
means 50, 51 are moved to rotate clockwise in the holes 23, 24 by the 
connecting rods 40, 41 so that the half caps 60, 61, normally closed, may 
be forced to swing outward to open the open upper side of the outer can 2. 
Meanwhile, the pivotal shafts 500', 510' of the position means 50', 51' 
are moved to rotate counterclockwise in the holes 23', 24' so that the 
half caps 60, 61 may also be forced to swing outward to open the outer can 
2 at the same time. Now as the half caps 60, 61 are open, garbage can be 
thrown into the garbage bag placed in the inner can 7. 
If the user releases his/her foot from the pedal 30 so far stepped on, the 
lever 3 is pushed up by elasticity of the spring 22, letting the first 
pair of the connecting rods 40, 41 move up and moving down the second 
pairs of the connecting rods 40', 41' with the position means 50, 51, 50', 
51' rotating counterclockwise and clockwise in the holes 23, 24, 23', 24' 
and forcing the half caps 60, 61 to swing inward to close up the outer can 
2 by the pivotal shafts 500, 510, 500', 510' being rotated by the position 
means 50, 51, 50', 51 and partly by their own weight. 
The two adhesive bars 602, 612 fitted in the horizontal slots 601, 611 in 
the half caps 60, 61 can adhere to both sides of the upper end of the 
garbage bag 9 so that when the half caps are opened, two adhesive bars 
602, 612 also open the garbage bag 9, with both the upper sides adhered to 
the bars 602, 612. And when the half caps 60, 61 are closed up on the 
outer can 2, the upper end of the bag adhered to the bars 602, 612 are 
also closed up without manual handling as shown in FIGS. 6 and 7. 
Nearly any material with proper adhering properties will suffice for the 
adhesive bars 602, 612. Among the materials that can be used for the 
adhesive bars 602, 612 are PU resin, TPR, heat moldable rubber, etc. 
When the garbage bag 9 in the inner can 7 becomes full, it can be taken out 
of the inner can 7 by removing the upper end adhered to the adhesive bars 
602, 612, with the half caps 60, 61 opened. Then the next garbage bag 9 
connected the full one taken out is to be pulled out through the slot 70 
from the bottom of the outer can 2 and be placed in the inner can 7. Then 
the upper end can be adhered to the adhesive bars 602, 612 by closing the 
half caps 60, 61, and the full bag taken out can be torn off.