EP0194306A1 - Procede et systeme de production de tiges de soutien et d'arrosage de plantes; tiges obtenues par ce procede - Google Patents

Procede et systeme de production de tiges de soutien et d'arrosage de plantes; tiges obtenues par ce procede

Info

Publication number
EP0194306A1
EP0194306A1 EP19850904809 EP85904809A EP0194306A1 EP 0194306 A1 EP0194306 A1 EP 0194306A1 EP 19850904809 EP19850904809 EP 19850904809 EP 85904809 A EP85904809 A EP 85904809A EP 0194306 A1 EP0194306 A1 EP 0194306A1
Authority
EP
European Patent Office
Prior art keywords
bark
rod
tubular
tubular rod
tubular member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19850904809
Other languages
German (de)
English (en)
Inventor
Tommaso Vanetti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from IT83628/84A external-priority patent/IT1183726B/it
Priority claimed from IT83629/84A external-priority patent/IT1183727B/it
Application filed by Individual filed Critical Individual
Publication of EP0194306A1 publication Critical patent/EP0194306A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/12—Supports for plants; Trellis for strawberries or the like
    • A01G9/122—Stakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements

Definitions

  • the present invention relates to process and means for manufacturing rods for supporting and watering plants, and rods obtained thereby.
  • the known arrangements have several drawbacks.
  • the object of the present invention is to eliminate such drawbacks.
  • a process comprises at least an expanding step of a foaming resin whereby it expands, at the same time inwardly and outwardly of a tubular member as a result of dropping of resin being expanded in a cavity provided by a mould and by the outer wall of the tubular member.
  • the expansion occurring at the same time inside and outside of tubular member is provided at different densities.
  • the density of the expanded resin in the core i.e. inside the tubular member is much higher then the density of the same out of the tubular member whereby permeability is minimized in the core and maximized in the bark.
  • the expansion at the same time and the different densities and/or permeabilities are provided by a system of communicating vessels at the foot of the mold or of tubular member through its wall to supply inside and outside thereof suitable quantities of resin to be expanded.
  • the rods for supporting and watering plants tubular have a member which is provided at one end at least with a lengthwise cut, such end and cut being involved in a strengthening collar having an inner diameter at least equal to the outer diameter of tubular member end plus twice the thickness of the tubular member wall.
  • the bark of expanded resin embodies the cut end involved in said strengthening collars whereby to provide between them a connection or joint, which maintain therealong the tubular member end duly spread out whereby to receive therein the bottom end of similar tubular member or device.
  • the core inside the tubular member is a single piece strongly adherring to the inside wall of tubular member and being of the same material of the bark but of higher density than it, the same core, at the end comprise a skin casually permeable whereby to provide a gap between the core top and the cut bottom including a store pool for water, hydroponic liquid and the like for slowly watering substantially with stationary attitude the core as well as quickly towards the bark through the cut or cuts.
  • Figure 1 is a sketch perspective view of a head of an extruding machine (not shown) comprising two annular bores, in the attitude of extruding two tubular members of such diameters to be fit each other.
  • extrusion substantially represents the first stage of the process.
  • Figure 2 is a sketch view showing the cutting of a length from the extruded tube, providing the rod of the device, and this comprises the second step of the process according to the present invention, whose result is shown too.
  • Figure 3 is a sketch view showing the cutting of a short length from the extruded tube of larger diameter providing a strengthening collar for one end of the rod; this comprising the third step of the process according to the present invention whose result is shown too
  • Figure 4 is a perspective sketch view of a fe ⁇ dbox, holding the tubular members resulting from the step shown at figure 2, in the aim to supply them in the next steps with a frequency different from extruding or cutting frequency.
  • Figure 5 is a sketch perspective view, of the next two steps occurring at the same time, as they are provided along different lengths of the same tubular member and comprising: drilling of radial bores therethrough in the wall thereof as well as providing, at one end of the tubular member wall, a set of lengthwise cuts therethrough, substantially along a length from 6 to 20 per cent of the total length of tubular member.
  • Figure 6 is a perspective view, in a reduced scale, representing the incipient coupling between the tubular member resulting from the step of figure 5, and the collar resulting from the step shown at figure 3.
  • Figure 7 is substantially a repetition of figure 6 but at the end of the coupling.
  • Figure 8 is an exploded, perspective view of molding means adapted to provide the rod therearound with a bark of porous material such as a resin foam; in the middle of the mould the unit of figure 7 is shown but in view of the plug exploded over the top seat so as to enlarge the same.
  • Figura 9 is a perspective, in an enlarged scale with respect to figure 3, partially in cross-section, substantially along a rigth angle and showing the means as shown at the same figure 8, in dosed position but upon injection in the mould of an expandible resin, the same being expanded therein.
  • Figure 10 is a claimsic, perspective, view of a next step or finishing step of the process, whereby the rod device is removed from the mold, resulting covered with a skin substantially watertight which is to be suitably stripped for watering purpose.
  • Figure 11 is a perspective view showing a first finished rod, with the top end brocken away in the attitude whereby the bottom male end of a second rod is being fit inside the upper end of the former.
  • Figure 12 is a sketch perspective view, of a four-place mould, to make vessels providing the bottom of water reserve pool to be included within the tubular member or rod of the device. The result of this step being shown too.
  • Figure 13 is substantially a repetition of fig. 5 and shows a similar step but referring to another embodiment of the present invention, whereby only the cuts are provided.
  • Figure 14 is substantially a repetition of fig. 8 and shows a similar mould but referring to another embodiment of , the present invention; in the middle of the mould a unit is shown resulting by coupling of tubular member obtained from the step of figure 13, with the collar obtained with the step of fig. 3 and with the pool obtained from the step of fig. 12, wherein the vessel is in an attitude relatively close to the coupling whereby the water reserve is reduced.
  • Figure 15 is substantially a repetition of a detail of fig. 14, whereby the vessel is provided within the tubular member but at a distance from the coupling to provide an aboundant water reserve.
  • Figure 16 is a cross-section of one half of the device in an enlarged scale, with respect to figs. 14 and 15, showing the means represented, in the same figs. 14 and 15 same in closed attitude but upon injection within the mold of a resin to be expanded and upon expansion thereof within the tubular member and outside of the male member shown in fig. 14.
  • Figure 17 is sustantially a repetition of fig. i6 but regarding the member of figure 15.
  • Figure 19 is substantially a repetition of the bottom part of figure 16 but upon removal of the piston and upon loading a supply of water in the pool.
  • a process for manufacturing rods for supporting and watering plants conventionally, comprises extruding from a head 900 of an extruder, not shown, a continuous tube, shearing with a tool 901 (figure 2) a length 9 thereof, drilling therethrough, by drills 902, interpaced holes 90 piercing the tube wall (figure 5), and once that the tubular is placed in a mould ⁇ and closed therein ex panding, therear ⁇ und a foaming material to provide a bark 99.
  • Acording to one preferred embodiment of thje invention as shown in figures from 5 to 9, a contemporary expansion is provided both inside and outside of the tubular member 9, by pouring the foaming resin 4 (figure 9) into the space 80 between the inner wall 80 of mould 8 and the outer wall of tubular member 9. Expansion both inside and outside of tubular member 9, is provided at different densities; viz. the density of the foaming resin in the core 09 is kept very higher than the density in the bark 99, whereby in said core 09, permeability is minmized and in said bark 99 is maximized.
  • Expansion of foaming resin 4 is limited both inside and outside of tubular member 9.
  • expansion is limited outside at a first end of tubular member 9 to leave free a length thereof to provide a plug 9' and inside at a second end 9" of tubular member 9 to provide a free space comprising firstly a pool for water, hydroponic liquids and the like, purposed to flow outwardly to soak bark 99 which is the direct means for watering the plant and secondly a socket complementary for engagement of the plugs of contiguous members, not shown.
  • main tubular member 9 (figures 1, 2 and 3) by the same extruder 900 a second tubular member is provided too and is sheared in short lengths 91 (figure 3).
  • Such tubular short lengths 91 have an inner diameter larger than the outer diameter of main tubular member 9, and provides a strengthening collar to be worn about the first end section 9".
  • Such tubular members 9" and 91 are sealed or welded thereby.
  • section 9" purposed to receive therein said plug at least two longitudinal cuts 98 (four cut 98 are shown in the drawings).
  • a piston 89 is penetrated to provide the space of socket 9" while as aforesaid the resin expansion results in a sealing or welding of the cut reinforced section including collar 91.
  • mould 8 comprises two half sections 83, 84, substantially demicylindrical, and an upper lid 35.
  • the mould receives in its cavity the main tubular member 9 and its collar 91 and thereafter is tight closed with exception of inlet 08 for foaming resin supply through the lid 85 and air discharge outlets, not shown, also comprised in upper lid 85.
  • the lid 3 is provided with a piston 89 downwardly projecting therefrom, a piston (89) circular in cross-section having at least the length section adjacent to the same lid (85) of the same diameter than the outer diameter of said tubular rod (9) and a beveled section 89".
  • the rods for supporting and watering plants comprise a tubular member 9 made of substantially rigid material comprising at least an outer bark 99 of foam or expanded material, said tubular rod 9 being barkless at one end 9' and coreless at the other end 9".
  • the tubular rod 9 comprises at least one cut 98 (four cuts are shown in the drawings) extending longitudinally at least at one end thereof.
  • the cut end 9" is envolved in a strengthening collar 91 whose inner diameter is at least equal to outer diameter of said tubular rod 9 plus the double thickness of the wall of same rod 9.
  • the bark 99 of expanded material including the length 9" of tubular rod 9 involved by the strengthening collar 91 comprise a sealed joint which maintain spread out said rod end length 9" to comprise a socket adapted to receive a complementary end 9' of a contiguous rod.
  • a vessel 5 is provided with dyes 51, 52, preferably beveled (figura 12), whose maximum diameter is equal to the inner diameter of tubular member 9, to be fitted thereto.
  • Vessel 5 is tight fit, on the bottom end 89' of piston shown at figures 14 and 16 and figures 15, 17, 18 and 19 which is complementary shaped.
  • Inside of vessel 5, are preferably provided at least three longitudinal nervature 50 (four nervature are shown in the drawings) for the reason to be explained later on.
  • the foaming material 4 poured from 08, drops on the bottom of mould sections 83 ed 84 and espands upwardly.
  • section 9" of the rod comprises a coupling socket, a pool and a flow connection, at least of capillar kind between the vessel 05 and the bark 99.
  • Piston 89, 89", 89' provides favourable conditions whose result is the formation of a mantel 19 therearound (figures from 16 to 19) of expanded resin, which bridge a gap including a vertical portion of vessel 5 and at least a bottom section of cuts 98.
  • the resin expansion cavity of mould 8 including the rod end 9" of rod 9, providing a coupling, thus comprising the cuts or opening 98 substantially longitudinal, strengthening collar 91, piston 89, 89", 89' and providing a support for vessel 5 include a structure permeable by the resin to be expanded wereby the resin embodies in a whole any of said members with provision of an expansion 19 a grembiule o a bussola, bridging in heigth, at least gap between the bottom wall of the vessel 5 and the bottom 98' of cuts 98.
  • a skin 09 which is scarcely or at all permeable, piston 89' viene provided with cutters 39 in its leading end, whereby to pierce such skin 09".

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Une tige tubulaire (9) comprend au moins une fente (98) longitudinale à au moins une de ses extrémités (9"). Cette extrémité fendue (9") est enveloppée par un collier de renforcement (91) dont le diamètre intérieur est au moins égal au diamètre extérieur de ladite tige tubulaire (9) plus deux fois l'épaisseur de la paroi de cette tige. L'écorce (99) en matériau mousse expansé entoure la tige tubulaire sur toute sa longueur, y comris la partie enveloppée par le collier de renforcement (91), et comprend un joint d'étanchéité qui maintient dilatée ladite extrémité (9") de la tige. Une réserve d'eau ou d'autres liquides hydroponiques ou similaires comprend au moins une membrane (5) étanche à l'eau, au moins scellée par ladite résine (4-19) et de préférence incorporée dans celle-ci. Les sections du corps dilaté de la tige qui constituent la membrane (5) et le collier (91) comprennent un corps unique (19), l'écorce (99) traversant les fentes (98), connecté au moins par les pores de la mousse à l'écorce (99), de sorte que tout liquide versé sur la membrane (5) peut s'écouler rapidement et tremper l'écorce (99).
EP19850904809 1984-09-17 1985-09-17 Procede et systeme de production de tiges de soutien et d'arrosage de plantes; tiges obtenues par ce procede Withdrawn EP0194306A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT8362884 1984-09-17
IT83628/84A IT1183726B (it) 1984-09-17 1984-09-17 Procedimento e mezzi di fabbricazione di bastoni, cosiddetti "tutori", per colture, particolarmente in vaso, di piante rampicanti, e "tutori" ottenuti con tali procedimento e mezzi
IT83629/84A IT1183727B (it) 1984-10-01 1984-10-01 Procedimento e mezzi di fabbricazione di bastoni, cosiddetti tutori, per colture, particolarmente in vaso, di piante rampicanti, e tutori ottenuti con tali procedimento e mezzi
IT8362984 1984-10-01

Publications (1)

Publication Number Publication Date
EP0194306A1 true EP0194306A1 (fr) 1986-09-17

Family

ID=26330102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850904809 Withdrawn EP0194306A1 (fr) 1984-09-17 1985-09-17 Procede et systeme de production de tiges de soutien et d'arrosage de plantes; tiges obtenues par ce procede

Country Status (2)

Country Link
EP (1) EP0194306A1 (fr)
WO (1) WO1986001681A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735653B1 (fr) * 1995-06-22 1997-09-05 Gourbiere Alain Dispositif de fixation et d'arrosage pour les vegetaux
NL1004702C2 (nl) * 1996-12-05 1998-06-08 Cornelis Johannes Van Kester Werkwijze en inrichting voor het vervaardigen van, met vezels omwoelde, steunbuizen voor planten en steunbuis vervaardigd volgens de werkwijze.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334440A (en) * 1965-09-24 1967-08-08 Choquette Aime Water and humidity distributor for plants
US4218415A (en) * 1975-07-21 1980-08-19 Botanik S.R.L. Manufacture of foam coated rod-like elements particularly for supporting pot-grown plants in general
FR2437774A1 (fr) * 1978-10-02 1980-04-30 Eychenne Camille Tuteur pour plantes grimpantes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8601681A1 *

Also Published As

Publication number Publication date
WO1986001681A1 (fr) 1986-03-27

Similar Documents

Publication Publication Date Title
US5053130A (en) Diffusion and/or filtration apparatus
US5415440A (en) Corrugated spiral pipe with joint, process of producing the same, and method of providing sealing connection between corrugated spiral pipes
US8262977B2 (en) Process for the manufacture of a shaft bottom
SK280036B6 (sk) Spôsob zhotovenia betónových stien v spínanom debn
KR100462087B1 (ko) 응고형 건축 재료의 지지부를 성형하기 위한 조립식 거푸집
US4145776A (en) Unitary bowl, waterway and trap for a toilet, and the method of making same
US5197912A (en) Buoy for attachment to the net line of a fishing net
US4931329A (en) Enclosure forming adaptors and related apparatus
EP0194306A1 (fr) Procede et systeme de production de tiges de soutien et d'arrosage de plantes; tiges obtenues par ce procede
US4079912A (en) Adjustable core forms
US4467858A (en) Blind feeder sleeves
FR2474457A2 (fr) Poignee rigide pour recipient en matiere synthetique
US4028034A (en) Method and apparatus for blow molding plastic
FR2500053A1 (fr) Boulon d'ancrage utilisant un accelerateur fulgurant pour la prise du mortier
US5686130A (en) Method of making frozen confection with encased whistle
FR2504168A1 (fr) Procede pour l'execution dans le terrain d'ouvrages annulaires pour des destinations diverses telles que la construction de pieux de fondation a noyau creux; equipement pour l'execution dudit procede et structures obtenues
KR960003943A (ko) 배수로관용 제조방법장치 및 그의 제품
FR2410496A1 (fr) Structure de filtre pour epuration et transfert de chaleur et de masses
FR2497062A1 (fr) Abreuvoir pour volaille
SU953422A2 (ru) Устройство дл изготовлени фитил тепловой трубы
JPH08218355A (ja) 排水部材、及び地下排水構造
JPH0455094B2 (fr)
TW233254B (en) Sponge and manufacturing method for an automatic mop
JPS6245887Y2 (fr)
WO1998011373A3 (fr) Organe de coupe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19861120

17Q First examination report despatched

Effective date: 19880928

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19890725