DE9104392U1 - Household - small waste compressor - Google Patents

Description

Title Household - Small waste compressor State of the art

Known technical solutions include extensive devices for shredding, sorting and compressing waste with high space and energy requirements.

For example, the device according to DE-OS 3149799 for flattening empty cans, which requires a space of several meters.
For these reasons, the known solutions are not suitable for private households and the catering industry (drink vending machines,
beverage kiosks, etc.).

Task

The invention specified in claim 1 is based on the object of creating a small waste compressor which is used for compressing empty packaging (drink cans, candy cans,
plastic bottles, paper cups, milk cartons, etc.) and in
can be used in every household as well as in the restaurant and snack bar industry.

Advantage

The invention brings serious consequences for private households
Benefits:

- The trash can needs to be emptied less often,

- Cost savings for garbage collection, as the garbage cans or
Garbage containers can be used more efficiently.

The mass use of the invention also results in cost savings for local authorities:

- Special recycling containers for cans, plastic waste, etc.
need to be emptied less often,

- Due to better compacted waste, landfills grow less quickly.

The invention serves ecologically, since the non-recyclable
The packaging materials available require less space for final storage.

Further development of the invention

Advantageous embodiments of the invention are specified in claims 2 and 3.

The further development according to claim 2 offers the possibility of flattening objects whose length may be greater than the piston stroke allows.

The further development according to claim 3 enables an increase in the pressing force with unchanged engine and transmission data.

The housing cross-section can be rectangular, trapezoidal or polygonal according to claims 4 to 6.

Description of the invention

An embodiment is explained using the figure.

The object 3 to be compressed is placed into the loading space 20 after opening the flap 19.

After closing the flap 19, the spindle 8 is rotated by switching on the electric motor 15 via the gear 14, whereby the main piston 7 slowly moves forward.
The spindle 8 is guided on the one hand in the plain bearing 12 mounted in the rear wall 17 of the main housing and on the other hand in the threaded sleeve 9 connected to the bottom of the freely movable main piston 7.

The counterforce occurring in the axial direction is compensated by a
Thrust bearing 11 intercepted.

The square cross-section of the main housing and main piston prevents the main piston from twisting during its movement.
The object 3 is pressed against the front wall of the main housing 1
pressed and flattened.

After completion of the pressing process, the direction of rotation of the motor
automatically or at the push of a button, which starts the backward movement of the piston.

The flattened object 3 falls by itself through the
Ejection slot 2.

With the help of the pre-piston 5, even objects 3 whose length exceeds the stroke of the main piston 7 by up to twice can be pressed flat, whereby two pressing processes are required:

a) Pre-pressing with pre-piston removed 5

b) Pressing to final size with pre-piston 5 inserted

The detachable connection 18 ensures that the pilot piston 5 is moved along when the main piston 7 moves backwards.

The compression spring 10 arranged between the base plate of the main piston 9 and the rear wall of the main housing 17 is compressed when the main piston 7 moves backwards. The axial forces occurring in the opposite direction are absorbed by the rear thrust bearing 13.

The compression spring 10, which relaxes again when the main piston 7 moves forward, causes an increase in the pressing force in the initial phase of the pressing process, which can thus almost double with an appropriately dimensioned compression spring.
Towards the end of the pressing process, the pressure exerted by the compression spring 10
The additional pressing force caused decreases and reaches zero in the final phase.

In order to achieve an increase in the final phase of the pressing process,

To achieve the required pressing force using the compression spring 10, the user can proceed as follows:

The pre-piston 5 is not connected to the main piston 7, but is manually attached to the front wall of the

main housing 1. The loading space 20 is now

Main piston 6 and the pilot piston 5.

Since in this case the ejection opening 2 is covered by the pre-piston 5, the compressed object 3 must be removed by hand.

Reference symbols

1 - Front wall of the main housing

2 - Ejection opening

3 - Object

4 - Main body

5 - Pre-piston

6 - Main piston cover

7 - Main piston

8 - Threaded spindle

9 - Main piston head with threaded sleeve

10 - Compression spring

11 - front thrust bearing

12 - Plain bearing

13 - rear thrust bearing

14 - Gearbox

15 - Engine

16 - Drive housing

17 - Rear panel of the main housing

18 - detachable connection

19 - Flap

20 - Cargo space

Claims (6)

Protection claims 1. Household small waste compressor for flattening empty packaging and other non-glass items
characterized by that on the outside of a main housing 4 with non
round cross-section, a motor 15 and gear 14 are attached, that a spindle 8 is mounted in a thrust bearing 11 in the housing rear wall 17 and is firmly connected to the gear output 14 , that there is a threaded sleeve 9 on the spindle 8, which is firmly connected to a main piston 7, which is hollow on the inside, so that the spindle projects into it, that the main piston 7 can move freely in the main housing 4 and that a flap 19 for the unpressed object 3 and an ejection opening 2 for the compressed object 3 are provided at the top
Item 3 is present. 2. Household small waste compressor according to claim 1,
characterized, that a freely movable and removable pre-piston 5 can be inserted into the main housing 4 according to the length of the objects 3 to be pressed. 3. Household small waste compressor according to claim 1 and/or 2,
characterized, that a compression spring 10 is inserted between the rear wall of the main housing 17 and the main piston 7. 4. Household small waste compressor according to claim 1 and/or 2 and 3, characterized in that that the inner cross section of the main housing 4 has the shape of a
trapezoid. 5. Household small waste compressor according to claim 1 and/or 2 and 3, characterized in that that the internal cross-section of the main housing 4 has the shape of a
triangle. 6. Household small waste compressor according to claim 1 and/or 2 and 3, characterized in that that the internal cross-section of the main housing 4 has the shape of a
polygon.