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EP0086899A1 - Procédé et dispositif de moulage par compression d'un objet de forme, en particulier pour former une palette constituée d'une ou de plusieurs pièces d'une entretoise servant de support ou d'un profilé de poutre de charge - Google Patents

Procédé et dispositif de moulage par compression d'un objet de forme, en particulier pour former une palette constituée d'une ou de plusieurs pièces d'une entretoise servant de support ou d'un profilé de poutre de charge Download PDF

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Publication number
EP0086899A1
EP0086899A1 EP82111990A EP82111990A EP0086899A1 EP 0086899 A1 EP0086899 A1 EP 0086899A1 EP 82111990 A EP82111990 A EP 82111990A EP 82111990 A EP82111990 A EP 82111990A EP 0086899 A1 EP0086899 A1 EP 0086899A1
Authority
EP
European Patent Office
Prior art keywords
pallet
press
pressing
molds
mold
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.)
Granted
Application number
EP82111990A
Other languages
German (de)
English (en)
Other versions
EP0086899B1 (fr
Inventor
Anton Heggenstaller
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.)
Anton Heggenstaller GmbH
Original Assignee
Anton Heggenstaller GmbH
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 DE19823222122 external-priority patent/DE3222122C2/de
Priority claimed from DE19823227074 external-priority patent/DE3227074C2/de
Application filed by Anton Heggenstaller GmbH filed Critical Anton Heggenstaller GmbH
Priority to AT82111990T priority Critical patent/ATE23125T1/de
Publication of EP0086899A1 publication Critical patent/EP0086899A1/fr
Application granted granted Critical
Publication of EP0086899B1 publication Critical patent/EP0086899B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N5/00—Manufacture of non-flat articles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/28—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of materials not covered by groups E04C3/04 - E04C3/20

Definitions

  • the invention relates to methods and devices for compression molding a molded body from small vegetable parts mixed with binders, in particular for forming a one-part or multi-part pallet, a support bar or a load-bearing beam profile.
  • DE-OS 30 35 701 teaches to press several pallet feet with joists connecting them in one form to massive pallet foot bars and to design these bars so that they can withstand high bending loads.
  • the aim is to make the recessed beams between the pallet feet stronger than that compress other areas of the pallet foot, which actually achieves greater strength and rigidity against bending stress.
  • the invention has for its object to press moldings of various types, for example one-piece pallet or in the case of multi-piece pallets, their bars, as well as support bars and beam profiles and the like and less sensitivity in handling can be achieved without having to increase their weight.
  • the invention is based on the known finding that the chips in a molded plate are preferably oriented parallel to the surface thereof.
  • the thicker such a plate is, the more arbitrarily the chips are in the middle plate area. This phenomenon can be suspected even more if the compact deviates considerably from the plate shape.
  • the invention strives with its characteristic means to enforce a certain chip orientation at all points that are subjected to high loads or are decisive for increasing the strength.
  • the gradual compression of the mixture by means of press molds which can be moved at different times, targeted movements are created in the chip structure, as a result of which the chips are oriented parallel to practically all surfaces.
  • a pallet foot latch that can be produced according to the invention is shown in FIG. 1 and the tool useful for its formation is shown in FIGS. 2 to 5.
  • the pallet foot latch 1 has an elongated cuboid shape, the top (roof surface 16) of which is flat and the underside of which is formed by pallet feet 2 and recesses 5 located between them, the transition of which should have a strong curvature 6.
  • the lower surfaces of the pallet feet 2 are parallel to the roof surface 16.
  • the beam 3 remaining in the region of the indentations 5 must have such a strength that the latch 1 withstands considerable loads, in particular bending stresses.
  • impressions 4 are pressed into the side walls of the bolt 1, which are indicated by dash-dotted lines in FIG. 1.
  • FIG. 2 shows a cross section of a molding press, such as corresponds to section II-II in FIG. 1 of the bar 1, if one imagines a shape enveloping the bar 1.
  • the molding press shown in Fig. 2 is first formed by guides 7 of fixed type, between which molds 10, 11, 12, 13 are movably guided.
  • the press mold 13 (cf. FIG. 3) is moved back into a raised position (not shown) in the illustration in FIG. 2 in order to make room for a filler shaft 8 through which the chip mixture mixed with binder can get into the press chamber 9.
  • All the molds 10, 11, 12 shown are in a set-back initial position. It is assumed that a metered amount of the mixture, which is adapted to the volume of the pallet bar 1 to be produced, is filled into the pressing chamber 9.
  • the mold 13 is moved into the position shown in Fig. 3 in a first embodiment of the invention.
  • the opposing die 10 can be advanced to the position shown in FIG.
  • the lateral molds 11, 12 remain in the position shown in FIG. 2 in this exemplary embodiment.
  • the consequence of this first pre-pressing process is that a part of the small parts sets in parallel to the molds 10, 13.
  • the bottom surface 17 or the roof surface 16 of the bolt 1 is formed by these molds 10, 13.
  • the material pre-compacted during this movement of the molds 10, 13 can deviate somewhat in the direction of the other molds 11, 12 set back according to FIG. 2 and still assume an indefinite positional orientation there.
  • these lateral pressing molds 11, 12 are moved forward into the position shown in FIG. 3, while the pressing molds 10, 13 remain in their pre-pressing position, the layers are oriented in layers parallel to the pressing surfaces of the lateral ones Molds 11.12.
  • the pre-pressed bolt 19 shown in FIG. 3 is still oversized compared to the final shape of the bolt 1. It is now shown that at least the setile molds 11, 12 are made in several parts. Between two outer mold parts 14, an inner mold part 15 is arranged to be movable relative to one another. Each compression molding 14, 15 is assigned its own lifting drive (not shown). On the way from the position according to FIG. 2 to that according to FIG. 3, all the compression mold parts 14, 15 have been advanced simultaneously. In the further course, however, the inner mold parts 15 are moved forward from the position according to FIG. 3 into that according to FIG. 4. These molds 15 can have the shape of the impression 4 shown in FIG. 1.
  • the molds 11, 12 can also be divided along the bar 1 (that is to say one behind the other parallel to the plane of the drawing). It is conceivable, for example, that the pallet feet 2 and the beams 3 above the indentations 5 (see FIG. 1) are each assigned (not shown) molded parts which are expediently against one another in the longitudinal direction.
  • Fig. 5 it is now shown that while maintaining the position of the mold parts 15, a kind of compression by the molds 10, 13 is carried out. The movement of these molds 10, 13 then leads to the final shape of the bolt 1. It can be imagined that the swarf or small parts located in the vicinity of the roundings 23 of the mold parts 15 experience a kind of displacement process as a result of this upsetting process according to FIG. They had already been brought into a position approximately parallel to their pressing surfaces by the movement of the compression mold parts 15 according to FIG. 4. 5 now requires an enveloping compression of the material in the area of the curved transitions. 5 also leads to a considerable stiffening of the entire bolt 1.
  • FIGS. 6 to 8 A second exemplary embodiment of the method according to the invention is shown schematically in FIGS. 6 to 8, which relates to the production of one-piece pallets, but can also be used for the production of pallet foot bars according to FIG. 1.
  • the pallet 24 should have a plurality of spaced-apart pallet feet 2 which are connected to one another by beams 3.
  • a press mold 25 acts over the entire area from top to bottom of the mixture of small vegetable parts, in particular wood chips and binding agents, which is shaped and compresses this against the lower molds 26, 27 which initially remain stationary. The lower molds 26 are then moved while the other lower molds 27 are still stationary. The pallet raw pressed in this way is still oversized.
  • the molds 25 to 27 are now slightly ventilated. There is no need to travel any distance; it is sufficient if only the pressing force is reduced or eliminated.
  • the side molds 28 are now set in motion against each other, which in the example only apply to the act on the outer side surfaces of the pallet 24. It may be advisable to keep the lower dies 27 in their original position so that they have to absorb part of the lateral deformation pressure.
  • the aforementioned lifting of the molds 25, 26, 27 can also take place simultaneously with the pressing of the lateral molds 28. It is also feasible to move the molds 26, 27 simultaneously with the mold 25 (FIG. 6).
  • the molds 25 to 28 are (not shown) stepped, corrugated or the like. Profiled, depending on which shape the pallet 24 is to receive. In the drawing, for the sake of simplicity, the thickness of the pallet plate is not shown, which is less than the height of the beams 3, which can run like a frame. As a result, the molds 27 are stiffened unless a separate mold or even a die plate that remains stationary is used for pressing the lower surface of the pallet plate.
  • the lower molds 26 are preferably used exclusively for pressing and recompressing the pallet feet 2.
  • FIGS. 9 and 10 are shown on a partial section for pressing a pallet foot 1, 2, the consequence of the gradual and staggered pressing according to the invention.
  • the upper die 25 covers a considerably greater distance than the lower die 26, for example in a ratio of 10: 1.
  • the dies 25, 26 take a position according to the broken lines 29 and 30 a.
  • Lines 31 and 32 indicate the positions of the molds 25, 26 at the end of the entire pressing process.
  • the chips in the batch do not move arbitrarily, but they are apparently oriented due to the various frictional flows.
  • the areas of the batch that are close to the mold walls 33 are likely to be subject to greater friction than the more central areas.
  • the chips assume a positional orientation according to FIG. 10, according to which the layers 34 adjacent to the pressing surfaces of the pressing molds have a chip orientation which runs predominantly parallel to these surfaces and is known from the surface pressure of chipboard.
  • the central regions 35 on the other hand, have a curved chip orientation, which - seen in the pressing direction 36 of the press mold 25 - is convex.
  • Such a curved structure contributes significantly to the increase in strength. It is increased by the fact that the side pressure and post-compression take place at different times. If you want to create an inverted curvature, the pallet must be pressed in a position turned by 180.
  • a partial region of a pallet foot bar 1 is shown, the pallet foot 2 of which has a nose-like extension 37, the surface of which is flush with that of the bar 1 and which has a tapered downward configuration.
  • the associated pallet board 38 rests on this extension 37 and, after being nailed to the extension 37, acts as an anti-tilt device for the bolt 37.
  • Such nose-like approaches can also have bare pallet blocks, which can be produced by the method according to the invention, but which can also be produced by die or even by extrusion.
  • the nose-like projections 37 are located at the locations on the pallet feet that face the central region of the pallet, which can be seen in FIG. 12 by the position of the pallet boards 38.
  • FIG. 13 uses a spatial shape which corresponds to that of FIG. 1. It is a support bar 38, as it is designed in cross-section I-shaped according to Figures 14 and 15. As a result, upper and lower belts 39 and the web 40 are formed, the web 40 being only slightly smaller in its thickness in relation to the belt width.
  • the representation of FIG. 13 is significantly reduced compared to that of FIG. 15.
  • FIGS. 14 and 15 show, for example, the cross sections according to their natural size, but these images are only to be seen as exemplary embodiments.
  • the web 40 is formed in that the side surfaces 42 of the web 40 are designed to be set back relative to the belts 39 while maintaining a peripheral edge 41. This movement back is brought about by a pressing process with compression of the material in the web 40.
  • FIGS. 14 and 15 It is clearly shown in FIGS. 14 and 15 that a parallel structure 43 is formed in the belt region 39 and a distinct convex structure 44 of the pressed small parts is formed in the web region 40.
  • the direction of loading is shown at 45.
  • the convex structure 44 should be provided with respect to this loading direction 45, that is to say in the opposite direction.
  • the support bars 38 are produced in a position rotated by 180 relative to the use position. However, this does not preclude the provision of concave curvatures in the load position of the support bolts 38 if special circumstances make this appear useful.
  • FIG. 13 also shows the typical shape that is required if the support bar 38 is to be used as a pallet foot. Accordingly, there are three projecting foot parts 52 with recessed web parts 53 located between them, which are connected to one another via a grooved transition 54.
  • FIG. 16 shows a modified method, with the aid of which it is possible to achieve the structures 43, 44 according to FIGS. 14 and 15.
  • a cavity 46 is formed, in which the material mixed with binders, in particular vegetable small parts made of wood and the like, is filled arbitrarily.
  • the press rams 49, 50 together with the vertical guide walls 51 form a shaft which is closed at the bottom in the exemplary embodiment by a press ram 48.
  • a stationary shaft wall can also be provided.
  • the pressing surfaces of the pressing rams 49, 50 are aligned with the vertical guide surfaces 51.
  • Fixed shaft walls (not shown) are provided on the end face. If a support bar 38 is to be produced in accordance with the shape according to FIG. 13, the press die 47 has a press surface configuration which forces the shape of the foot parts 52 and web parts 53.
  • the press die 48 is flat in its pressing surface.
  • the press die 47 is pressed down in the direction of the arrow. If a press die 48 is provided, it can be moved in opposite directions, but this is not initially necessary. As a result, the mixture located in the cavity 46, which has been introduced in a metered amount, is compressed over the high edge. It is obvious that the small parts along the surfaces of the ram 49.50 are subject to a higher friction than in the core of the compact. After the press stroke of the press rams 47, 48, their press pressure is loosened or released, but the press rams 47, 48 remain in their position. The mixture is then measured by the ram 49.50. These are designed in such a way that the side surfaces 42 are thereby imaged.
  • the compact is cured by applying heat. It may be advisable to release the press rams 47 to 50 and the guides 51 from the drive units for the press rams 47 to 50 without giving up the press position. Such an aggregate can then be put into a curing channel or oven and the next pressing process can be carried out with corresponding other tools.
  • the support bar 1 shown in FIG. 17 has a clear I cross-section, as can be used for the production of beams that are stable, in particular rigid.
  • a structure 43 of the small parts that extends parallel to the belts 39 is clearly pronounced.
  • the arched structure, as can be seen in FIGS. 14 and 15, is missing in the web 40.
  • the outer layers of the web 40 are characterized in a considerably thick structure 43, which also extends parallel to the web side surface 42.
  • curved structures 55 are formed, which roughly follow the outer contour of the support bar 38.
  • the structures are similar for other cross sections, for example U, Z or L profiles. These structures result from method steps as are given in FIGS. 18 to 22 in the context of an exemplary embodiment.
  • the filling space of a press mold is formed by press dies 47, 48, 49, 50 and guide walls 51.
  • the batch of small vegetable parts, in particular wood chips and binding agents, poured loose into this mold is first pre-compressed by the press ram 47.
  • a compact with a rectangular cross section is formed.
  • the press ram covers the path shown in FIG. 13 up to the dashed position. In this position, the pressure acting on the ram 47 is released.
  • the two lateral press rams 49, 50 are moved against one another, and in fact in a partial area of their entire stroke, the other press rams 47, 48 being allowed to dodge.
  • the web 40 (FIG. 17) is preformed.
  • the lateral press rams 49, 50 remain locked or their press pressure is maintained.
  • the press ram 47 is moved a further distance according to FIG. 20, which can be seen from the comparison with FIG. 19 '. Subsequently, the pressure of this ram 47 is released again, and the lateral rams 49, 50 according to FIG. 21 are moved into their final press position and held there in a locked position, which in turn can be done by maintaining the pressure.
  • the press ram 47 first compresses the filled batch by 150 mm (FIGS. 18 and 19).
  • the lateral press rams 49, 50 move 2/3 of their total stroke into the pre-compressed batch (Fig. 19).
  • the press ram 47 now travels a further 90 mm (Fig. 20).
  • the lateral press rams 49.50 are moved into their final press position (FIG. 21), the total stroke of a press ram 49.50 being approximately 30 mm.
  • Both press rams 47, 48 are then brought into their final press position. (Fig. 22).
  • the structure of the small parts according to the invention can be achieved by first pressing the small parts filled into a mold in one direction along the longer axis and only then, while loosening or even removing the pressure, carries out the lateral shaping by pressing, which creates the I-type profile. If the support bar is compacted again over the longer axis according to the shape thus formed, a particularly intensive convex or concave structure is formed in the web area of the support bar. The compact is then cured under the influence of heat while maintaining the all-round pressure.
  • the load-bearing capacity of a support bar produced according to the invention is greater, the more pronounced the convex structure in the web area and the parallel structure of the small parts in the belt area is. It is assumed that the structure formation depends on the dimension of the crossbeam and depends on the different frictional forces among the small plant parts depending on their location. If, for example, a support bar with a rectangular cross section is pressed upright in a shaft-like shape, it can be expected that the friction of the small plant parts to be pressed, in particular wood shavings, will be greatest on the shaft wall and lowest in the central area of the web.
  • the support bar according to the invention is designed to be particularly high-strength.
  • the aforementioned vault structure in the web area of the support bar can be changed if the compact is subjected to a repetition of the successive vertical and lateral pressing.
  • This measure has made it possible to produce support bars with cross-sectional profiles that are more similar to those of rolled metal profiles. In front all this results in a web that is considerably slimmer in thickness than can be achieved in the previously mentioned variant of the invention.
  • a measure according to claim 13 is expedient for the pressing, since the lifting or loosening of the pressure acting on the vertical press ram has the consequence that no tear-off in the microstructure can take place during the lateral pressing.
  • the lateral press rams can remain under pressure in their intermediate and final press positions if the vertical press rams carry out the pressing processes assigned to them.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Pallets (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP82111990A 1982-01-29 1982-12-24 Procédé et dispositif de moulage par compression d'un objet de forme, en particulier pour former une palette constituée d'une ou de plusieurs pièces d'une entretoise servant de support ou d'un profilé de poutre de charge Expired EP0086899B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82111990T ATE23125T1 (de) 1982-01-29 1982-12-24 Verfahren und vorrichtung zum formpressen eines formkoerpers, insbesondere zur bildung einer ein- oder mehrteiligen palette, eines tragriegels oder eines tragfaehigen balkenprofiles.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE3203032 1982-01-29
DE3203032 1982-01-29
DE3208875 1982-03-11
DE3208875 1982-03-11
DE19823222122 DE3222122C2 (de) 1982-01-29 1982-06-11 Verfahren und Vorrichtung zum Formpressen eines Formkörpers zur Bildung einer ein- oder mehrteiligen Palette
DE3222122 1982-06-11
DE3227074 1982-07-20
DE19823227074 DE3227074C2 (de) 1982-03-11 1982-07-20 Tragriegel aus mit Bindemitteln vermischten planzlichen Kleinteilen

Publications (2)

Publication Number Publication Date
EP0086899A1 true EP0086899A1 (fr) 1983-08-31
EP0086899B1 EP0086899B1 (fr) 1986-10-29

Family

ID=27432774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111990A Expired EP0086899B1 (fr) 1982-01-29 1982-12-24 Procédé et dispositif de moulage par compression d'un objet de forme, en particulier pour former une palette constituée d'une ou de plusieurs pièces d'une entretoise servant de support ou d'un profilé de poutre de charge

Country Status (6)

Country Link
US (1) US4559195A (fr)
EP (1) EP0086899B1 (fr)
DE (1) DE3273960D1 (fr)
ES (3) ES8400697A1 (fr)
IL (1) IL67766A (fr)
NO (1) NO162268C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196299A1 (fr) * 1983-11-23 1986-10-08 Commw Scient Ind Res Org Procede de formage d'un produit de bois reconsolide.
WO1990001092A1 (fr) * 1988-07-26 1990-02-08 Jouko Vekkeli Structure en bois et presse a rouleaux servant a produire cette structure
GB2339760A (en) * 1998-07-17 2000-02-09 Thomas Gilligan Moulded Pallet
FR2900428A1 (fr) * 2006-04-28 2007-11-02 Luc Sauteraud Element de contruction rapide

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FR2604430B1 (fr) * 1986-09-30 1990-01-05 Pechiney Aluminium Procede et dispositif de mise en forme de blocs carbones par compactage multiaxial
DE3825986A1 (de) * 1988-07-27 1990-02-01 Kiss G H Verfahren zum herstellen von vorformkoerpern und vorrichtung zur durchfuehrung des verfahrens
DE3916774A1 (de) * 1989-05-23 1990-11-29 Anton Heggenstaller Verfahren und vorrichtung zum pressen eines biegesteifen balkenfoermigen formkoerpers aus pflanzlichen kleinteilen
DE3941170A1 (de) * 1989-12-13 1991-06-20 Heggenstaller Anton Gmbh Verfahren und vorrichtung zum formpressen von formkoerpern aus pflanzlichen kleinteilen
DE8914649U1 (de) * 1989-12-13 1991-04-11 Anton Heggenstaller AG, 86556 Kühbach Profil aus formgepreßten pflanzlichen Kleinteilen
US5824246A (en) 1991-03-29 1998-10-20 Engineered Composites Method of forming a thermoactive binder composite
US5435954A (en) * 1993-10-08 1995-07-25 Riverwood International Corporation Method for forming articles of reinforced composite material
US5770136A (en) * 1995-08-07 1998-06-23 Huang; Xiaodi Method for consolidating powdered materials to near net shape and full density
US20020109267A1 (en) * 1997-10-02 2002-08-15 Harald Herbst Differentiated press-molding process
DE19745909A1 (de) * 1997-10-17 1999-04-22 Borealis Polymere Holding Gmbh Differenzierter Preßprozeß
ES2276678T3 (es) 1999-03-31 2007-07-01 Masonite Corporation Componentes compuestos para la construccion y procedimiento de fabricacion de los mismos.
US6773791B1 (en) 1999-03-31 2004-08-10 Masonite Corporation Composite building components, and method of making same
US6561787B2 (en) * 1999-09-29 2003-05-13 Kansas State University Research Foundation Apparatus for forming biodegradable and edible feed packaging materials
DE10160832A1 (de) * 2001-12-11 2003-06-18 Franz Banke Gmbh Preßvorrichtung
WO2003101690A1 (fr) * 2002-05-31 2003-12-11 Toyota Shatai Kabushiki Kaisha Corps forme a base de bois, et procede de production correspondant
US6887064B2 (en) * 2002-06-18 2005-05-03 Sung Kuk Soh Method and apparatus for producing non-planar formed parts using compaction molding compounds, and parts formed using same
US6895723B2 (en) * 2002-08-29 2005-05-24 The Coe Manufacturing Company, Inc. Compressed wood waste structural I-beam
ITMO20050291A1 (it) * 2005-11-04 2007-05-05 Imal Srl Macchina per la formatura di manufatti in materiale incoerente, particolarmente per la realizazione di traversine per palette di caricamento, e metodo relativo
US9078807B2 (en) * 2007-02-16 2015-07-14 Teijin Pharma Limited Tablet compression machine
CN201168994Y (zh) * 2008-01-16 2008-12-24 张翠兰 植物纤维托盘双向挤压成型方法的专用设备
SE532102C2 (sv) * 2008-12-23 2009-10-20 Newbeam Sweden Ab Press samt förfarande för att av limpreparerad träflis forma balkar med åtminstone en väsentligen U-formad tvärsnittsdel
EP3208400B1 (fr) * 2016-02-22 2025-01-29 Wood Innovations Ltd. Panneau de construction léger comprenant des éléments ondulés
IT201900012960A1 (it) * 2019-07-26 2021-01-26 Mecolpress S P A Apparecchiatura per lo stampaggio di materiali.

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US3933968A (en) * 1968-01-29 1976-01-20 Pierre Sorbier Method of moulding articles from a paste like material
US3809736A (en) * 1969-04-28 1974-05-07 Werz Furnier Sperrholz Method of producing molded elements with parts of different thicknesses from fibrous mixtures
DE2306507A1 (de) * 1973-02-09 1974-09-12 Werz Furnier Sperrholz Verfahren zur herstellung von gepressten profilkoerpern mit langgestreckt stetigen uebergaengen
SE379679B (fr) * 1973-02-20 1975-10-20 Svenska Utvecklings Ab
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FR2301441A1 (fr) * 1975-02-21 1976-09-17 Terre Robert Perfectionnements apportes aux procedes
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US4213928A (en) * 1978-06-19 1980-07-22 Kockums Industri Ab Method of making structural chipboard wood beam
US4303019A (en) * 1979-03-07 1981-12-01 Board Of Control Of Michigan Technological University Articles molded from papermill sludge
DE3227074C2 (de) * 1982-03-11 1984-07-12 Anton 8892 Kühbach Heggenstaller Tragriegel aus mit Bindemitteln vermischten planzlichen Kleinteilen

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DE1245114B (de) * 1958-08-21 1967-07-20 Meyer Fa Rudolf Einrichtung zum Pressen von Formstuecken, insbesondere von einseitig offenen Hohlkoerpern aus nicht fliessenden Massen, z. B. Holzspanpressmassen
US3632276A (en) * 1969-04-28 1972-01-04 Werz Furnier Sperrholz Mold for producing molded elements with parts of different thicknesses from fibrous mixtures
DE2112558A1 (de) * 1970-03-16 1971-10-07 Expl Des Etablissements E Boff Pressvorrichtung
DE2508493A1 (de) * 1975-02-27 1976-09-02 Horst Lewin Palette
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EP0048367A1 (fr) * 1980-09-22 1982-03-31 Anton Heggenstaller Support de palette et procédé pour sa fabrication
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196299A1 (fr) * 1983-11-23 1986-10-08 Commw Scient Ind Res Org Procede de formage d'un produit de bois reconsolide.
EP0196299A4 (fr) * 1983-11-23 1988-02-01 Commw Scient Ind Res Org Procede de formage d'un produit de bois reconsolide.
WO1990001092A1 (fr) * 1988-07-26 1990-02-08 Jouko Vekkeli Structure en bois et presse a rouleaux servant a produire cette structure
US5207046A (en) * 1988-07-26 1993-05-04 Jatwood Oy Wooden structure, and a roller press for producing the structure
GB2339760A (en) * 1998-07-17 2000-02-09 Thomas Gilligan Moulded Pallet
FR2900428A1 (fr) * 2006-04-28 2007-11-02 Luc Sauteraud Element de contruction rapide

Also Published As

Publication number Publication date
IL67766A0 (en) 1983-05-15
ES283069U (es) 1985-05-01
ES279903Y (es) 1986-04-16
US4559195A (en) 1985-12-17
ES519349A0 (es) 1983-11-01
NO830200L (no) 1983-08-01
IL67766A (en) 1986-08-31
ES283069Y (es) 1985-12-16
NO162268C (no) 1989-12-06
EP0086899B1 (fr) 1986-10-29
ES8400697A1 (es) 1983-11-01
DE3273960D1 (en) 1986-12-04
NO162268B (no) 1989-08-28
ES279903U (es) 1985-08-01

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