JPH0649402U - Garbage compactor - Google Patents

Abstract

(57) [Summary] [Purpose] The mechanism is simple and compact, and maintenance-free. [Structure] The bellows 10 is installed on the upper part of the trash box 8.
The bellows 10 has means for introducing compressed air into it,
Means are provided for reducing the bellows 10. By introducing compressed air into the bellows 10, the bellows 10 is expanded into the dust box 8 to compress the dust. By discharging the compressed air, the bellows 10 is contracted by the spring force in the balancer 16 and is retracted upward from the dust box 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust compaction device.

[0002]

[Prior art]

 Conventionally, for example, as a trash storage box installed in a railroad car, there is a method in which a trash box is simply installed inside a partition wall in an aisle inside the car, and trash is thrown into the trash box from the aisle side.

In this type of waste storage box for storing bulky waste such as lunch boxes and empty cans used especially in vehicles, the waste is filled up early and passengers throw it away during long-distance operation. There was an inconvenience, and the crew had to dispose of the waste during operation so that it could be stored.

Therefore, the applicant of the present invention has previously proposed a dust processing apparatus that compresses the input dust to solve the above-mentioned problem (Japanese Patent Application No. 21688/1990).

[0005]

[Problems to be solved by the device]

 However, since the means for compressing dust in the above-mentioned device is a piston type that uses a compression plate, a piston and a cylinder for raising and lowering the compression plate, and a lifting guide, in order to increase the amount of compression of dust, the dust storage A space for retracting the long piston is required at the top of the part, and the dust storage device becomes large.

Further, since there is a worn portion due to sliding of parts, short-term maintenance is required. Then, this invention aims at proposing the dust compression apparatus of a simple mechanism which solves the said problem.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the first invention comprises a bellows (10) located right above a trash can (8) with its expansion and contraction direction being vertical and its upper end fixed. The bellows (10) expands and contracts so that the lower end of the bellows (10) moves into and out of the dust box (8), and the bellows (10) also introduces compressed air into the bellows (10). And urging means for urging the bellows (10) in the contracting direction.

A second invention further operates a sensor (20, 21) which is activated when the amount of dust put in the dust box exceeds a predetermined amount, and the pressure guiding means is activated by the operation of the sensor. It is equipped with an electric circuit.

The third invention further comprises a dust throwing door (7), wherein a switch (22) operated by opening the throwing door (7) and the number of times the switch is actuated are measured. And a electric circuit for operating the pressure guiding means when the counter measures a predetermined number of times.

[0010]

[Action]

 Normally, the bellows (10) is contracted as shown by the solid line in FIG. 1 via the wire rope 16b by the spring force in the balancer (16) which is a biasing means.

When the dust in the dust box (8) becomes a predetermined amount or full, compressed air is introduced into the bellows (10) from a compressed air intake pipe (12) which is a pressure guiding means. Then, the compressed air pressure causes the bellows (10) to extend downward in the chain line state of FIG. 1 to compress the dust in the dust box (8) and reduce its bulk.

After the dust is compressed, the compressed air in the bellows (10) is discharged, so that the bellows (10) is contracted by the biasing means as shown by the chain line in FIG. .

In the second invention, when the thrown-in dust is full, the sensor detects the dust and sends the signal to the switching valve (13) to activate the pressure guiding means to activate the bellows ( 10) Extend to compress dust.

In the third invention, the pressure guiding means is activated every time the dust input door (7) is opened a predetermined number of times to extend the bellows (10) to compress the dust.

[0015]

【Example】

 A first embodiment of the present invention shown in FIGS. 1 to 5 will be described. This embodiment shows an example in which the present invention is applied as a trash can of a railway vehicle, and 1 is a partition wall, for example, a passage side wall that constitutes an in-vehicle passage.

Reference numeral 2 denotes an outer box for housing a trash can, the front surface of which is exposed through a window hole 3 formed in the partition wall 1, the rear part thereof is housed in a space formed in the rear part of the partition wall 1, and is placed on a base 4. is set up. 4a shows a floor surface.

An opening / closing door 5 is provided on the front surface of the outer box 2 so as to be opened and closed by a screw number 6. A dust entry door 7 is formed near the upper portion of the opening / closing door 5. Reference numeral 8 denotes a trash box housed in the outer box 2, the upper end of which is open. Moreover, its height is formed such that the upper end thereof is located near the lower part of the dust-injecting door 7, and by opening the opening / closing door 5, the dust can be taken out of the outer case 2 through the window hole 3. It has become like this.

Reference numeral 9 denotes a trash storage bag stored in the trash box 8. Reference numeral 10 is a bellows, the expansion and contraction directions of which are arranged in the vertical direction, the upper end mounting frame 10a thereof is fixed to the inner surface of the top plate 2a of the outer box 2, and the lower end thereof is used as a free end to which the pressing plate 10b is fixed. It is set up. The outer diameter of the bellows 10 is slightly smaller than the inner diameter of the dust box 8.

Further, the bellows 10 is in a contracted state as shown by the solid line in FIG. 1 and by introducing positive air pressure into the hollow portion thereof, the lower end thereof is advanced into the trash box 8 as shown by the chain line in FIG. It can be changed to the stretched state.

Compressed air is introduced into the bellows 10 from an air source such as a compressor (not shown) through the intake pipe 12, the switching valve 13, and the intake passage 14.

The switching valve 13 is configured to be capable of switching between the above-described introduction of compressed air and the action of discharging the compressed air in the bellows 10 from the exhaust pipe 15 to the atmosphere. Reference numeral 16 denotes a balancer, which is suspended and held by the upper end mounting frame 10a of the bellows 10 at the center of the bellows 10. As shown in FIGS. 4 and 5, the balancer 16 is provided with a rotary drum 16a, and a wire rope 16b is wound around the rotary drum 16a to fix the base end to the rotary drum 16a and the other end to a bellows. It is fixed to the central portion of the inner surface of the push plate 10b of the device 10. Further, the balancer 16 is provided with a winding spring (not shown) for urging the rotary drum 16a in the direction in which the wire rope 16b is wound.

Next, the operation of this embodiment will be described. Normally, the rotating drum 16 is rotated in the winding direction by the winding tightening force of the winding spring provided in the balancer 10, the wire rope 16b wound around the rotating drum 16 is wound up, and the bellows 10 is rotated. 1 is reduced to a solid line state, and the pushing plate 10b is located above the dust-introducing door 5.

In this state, when the dust input door 7 is pushed open and dust is thrown in, the dust is stored in the dust storage bag 9. When the dust storage bag 9 is filled with dust by a predetermined amount or full, the switching valve 13 is switched to open the intake pipe 12 side and close the exhaust pipe 15 side.

Then, compressed air from the air source is introduced into the bellows 10 through the intake pipe 12, the switching valve 13, and the intake passage 14, and the bellows 10 is compressed by the compressed air pressure larger than the sprinkling force of the balancer 10 to cause the wire rope to move. While rewinding 16b, it extends downward.

As the bellows 10 extends into the dust storage bag 9 of the dust box 8 as shown by the chain line in FIG. 1, the dust 11 is compressed and its bulk is reduced. After the completion of this compression work, the switching valve 13 is operated so that the exhaust pipe 12 side is closed and the exhaust pipe 15 side is opened.

Then, the compressed air in the bellows 10 is discharged from the exhaust pipe 15, and at the same time, the push plate 10b of the bellows 10 is pulled up via the wire rope 16b by the spring force of the balancer 10, and the bellows 10 is shown by the solid line in FIG. Reduce to state.

As a result, a space for storing dust is formed in the upper portion of the dust storage bag 9, and the dust can be additionally charged into the dust storage bag 9. When the dust compressed in this way becomes full, open the opening / closing door 5 and take out the garbage storage bag 9 together with the garbage box 8 from the outer box, and take out the garbage storage bag 9 from the garbage box 8. .

After that, a new trash storage bag 9 is set in the trash box 8 and the trash box 8 is set in the outer box 2. As the means for reducing the bellows 10, the spring balancer is used in the above embodiment, but a balance weight, a constant load spring or the like may be used.

FIG. 6 shows a second embodiment of the present invention. The second embodiment is located near the upper part of the upper end of the installed dustbin 8, and has a light emitter 20 installed on one inner surface of the outer bin 2 and a light receiver 21 installed on the other inner surface thereof. A quantity sensor is provided.

The switching valve 13 is composed of an electromagnetic valve that electrically switches the switching valve 13. Further, the dust amount sensor and the switching valve 13 send a signal for switching the switching valve 13 so that compressed air is introduced into the bellows 10 when the light beam from the light emitter 20 in the dust amount sensor is blocked. It is connected by an electric circuit.

The other structure is the same as that of the first embodiment. According to this embodiment, when the dust is full, the dust blocks the light beam from the light emitter 20, and the dust can be automatically compressed by the bellows 10. The time and effort for compression work can be saved.

FIG. 7 shows a third embodiment of the present invention. The third embodiment is provided with a switch 22 that is turned on when the dust entry door 7 is opened, the switching valve 13 is the solenoid valve as described above, and the switch 22 and the switching valve 13 are connected to the switch 22. Is connected with an electric circuit that outputs a signal for switching the switching valve 13 so that compressed air is introduced into the bellows 10 when the counter counts a predetermined amount (for example, 5 times). ing. Incidentally, after the counter has counted a predetermined value and issued the above signal, the count is automatically reset to zero.

According to this embodiment, it is possible to compress the dust that is thrown in each time a predetermined amount of dust is thrown in, and a large amount of dust is compressed as compared with the case where the dust is compressed when the dust is full. Can be stored.

Although each of the above-described embodiments shows an example in which the present invention is applied to a trash can installed in a railway vehicle, the present invention is also applied to a trash can installed in a railway platform, a house, or the like. Of course, it can be applied.

[0035]

[Effect of device]

 As described above, in the present invention, since the bellows is used as the dust compression means, the mechanism is simpler and more compact than the conventional piston type, and the bellows has no sliding friction portion. The bellows can be used for a long period of time and is maintenance-free.

Further, according to the second aspect, when the dust is full, the dust can be automatically compressed, and the administrator can save time and labor for compressing the dust one by one. Furthermore, according to the third invention, each time a predetermined amount of dust is thrown in, the thrown dust can be compressed, and a large amount of dust can be stored.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a first embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view taken along the line AA in FIG.

FIG. 4 is a front view showing the balancer by cutting the bellows.

FIG. 5 is a side view of the same.

FIG. 6 is a longitudinal sectional view showing a second embodiment of the present invention.

FIG. 7 is a longitudinal sectional view showing a third embodiment of the present invention.

[Explanation of symbols]

 8 Trash Bin 10 Bellows 12 Intake Pipe for Compressed Air 13 Switching Valve 15 Exhaust Pipe 16 Balancer 20, 21 Emitter / Receiver 22 Switch

Claims (3)

[Scope of utility model registration request] 1. A bellows (10) positioned directly above a trash box (8) is provided with its expansion and contraction direction being vertical and its upper end fixed, and its lower end is expanded and contracted by expansion and contraction of the bellows (10). The bellows (10) is inserted into and retracted from the trash box (8).
0) a pressure guiding means for introducing compressed air into the bellows (1)
0) urging means for urging 0) in the reduction direction. 2. A sensor (20, 21) which is activated when the amount of dust thrown into the trash box exceeds a predetermined amount, and an electric circuit which activates the pressure guiding means by the operation of the sensor. 1. The dust compaction device according to 1. 3. A dust door (7) provided with a switch (22) operated by opening the door (7), a counter for measuring the number of times the switch is operated, and the counter. 2. The dust compressing apparatus according to claim 1, further comprising an electric circuit that operates the pressure guiding means when the measurement is performed a predetermined number of times.