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1. WO1996021346 - METHOD, DEVICE AND SET OF SEVERAL HOLLOW BODIES FOR EXTRACTING A PLUG OUT OF A HOLLOW BODY

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[ EN ]

CLAIMS
1. A method for extracting a plug (10), having a plant cultivated therein, out of a hollow body (4) , which hollow body (4) shows an open end and at the other end an opening (5) through which an ejecting pin (9) can push said plug (10) out of the respective hollow bodies, characterised in that use is made of a number of rods (11) which are synchronously displaced with said ejecting pin (9) around each hollow body (4), i.e. at the outside thereof, so as to catch the plug (10) with the plant during or after having removed said plug (10) from the hollow body (1, 2, 3) .
2. A method according to claim 1, characterised in that, when said hollow bodies (4) show a collar around their open end, said rods (11) are led through openings (12, 12', 12") provided therein.
3. A method according to claim 1, characterised in that, when said hollow bodies (4) show a collar around their open end, said rods (11) are pressed through said collar.
4. A device for in conformity with the method according to any one of the claims 1 to 3 from hollow bodies with an open end and at the other end an opening (4) through which an ejecting pin (9) can push out said plug (10) , characterised in that said rods (11) displace each time according to a path situated entirely at the outside of the hollow bodies.
5. A set of several hollow bodies for cultivating plants in plugs and extracting said plugs out of these hollow bodies by means of a device according to claim 4 in conformity with the method according to any one of the claims 1 to 3 , characterised in that at least one opening (12) is provided between each of said hollow bodies (1, 2, 3) for the passage of rods displacing synchronously with said ejecting pin.

6. A set of several hollow bodies according to claim 5, characterised in that four openings 12 are provided for each hollow body arranged at the outside thereof .
7. A set of several hollow bodies according to claim 5, characterised in that a common opening (12' respectively 12") is provided for each hollow body arranged between said hollow bodies in such a manner that four, respectively two, rods (11) can be displaced through these openings.
8. A set of several hollow bodies for cultivating plants in plugs and extracting said plugs out of these hollow bodies by means of a device according to claim 4 in conformity with the method according to any one of the claims 1 to 3 , characterised in that the thickness of the material of which said set is made, is chosen in such a manner that said rods (11) can be pushed through this material.