EP0080197B1 - Auge en matière plastique - Google Patents

Auge en matière plastique Download PDF

Info

Publication number
EP0080197B1
EP0080197B1 EP82110762A EP82110762A EP0080197B1 EP 0080197 B1 EP0080197 B1 EP 0080197B1 EP 82110762 A EP82110762 A EP 82110762A EP 82110762 A EP82110762 A EP 82110762A EP 0080197 B1 EP0080197 B1 EP 0080197B1
Authority
EP
European Patent Office
Prior art keywords
trough
bucket
flange
edge
wall portion
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.)
Expired
Application number
EP82110762A
Other languages
German (de)
English (en)
Other versions
EP0080197A1 (fr
Inventor
Ulrich Prödel
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.)
Stucki Kunststoffwerk und Werkzeugbau GmbH
Original Assignee
Stucki Kunststoffwerk und Werkzeugbau 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 DE19818134335 external-priority patent/DE8134335U1/de
Priority claimed from DE3146685A external-priority patent/DE3146685A1/de
Priority claimed from DE19823203995 external-priority patent/DE3203995A1/de
Priority claimed from DE19828202987 external-priority patent/DE8202987U1/de
Application filed by Stucki Kunststoffwerk und Werkzeugbau GmbH filed Critical Stucki Kunststoffwerk und Werkzeugbau GmbH
Priority to AT82110762T priority Critical patent/ATE12614T1/de
Publication of EP0080197A1 publication Critical patent/EP0080197A1/fr
Application granted granted Critical
Publication of EP0080197B1 publication Critical patent/EP0080197B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/48—Reinforcements of dissimilar materials, e.g. metal frames in plastic walls

Definitions

  • the invention relates to a bucket made of plastic, in particular for the transport and processing of ready-mixed mortar, of a truncated pyramid shape with an edge reinforcement from a tube embedded in the plastic, which is bent at an obtuse angle in the region of the narrower side walls, the apex of which is upward points, and which is exposed in the area of the apex by two handle holes.
  • Such a plastic bucket has become known from DE-PS No. 2708450.
  • This bucket created for mortar has a fabric-reinforced plastic wall that fully encompasses the reinforcement frame made of steel in the circumferential direction of the frame parts, but at the end faces in the direction of extension leaves the angle of the angled frame parts free but areas of the frame that act as eyelets for crane hooks or the like. serve, wherein reinforcing ribs are arranged on the outside of the container.
  • the production of fabric-reinforced plastic is very labor intensive. Therefore, such buckets are quite expensive to manufacture. The manufacture of such fabric-reinforced plastic buckets is not suitable for large-scale production.
  • This plastic bucket is also not suitable for transport on the tines of a fork of a forklift truck because the rim, which is designed in the form of a round bead, cannot hold onto the tines during transport and therefore the bucket slips through the space between the prongs of the fork.
  • buckets manufactured in large-scale production according to DE-PS No. 1149292 which have an edge reinforcement in the form of an annularly bent metal tube, which is completely surrounded by the plastic and have an abutment at least at one point on their circumference, have proven successful, the ends of the metal tube are connected to one another by means of an insertable inner or a push-on outer sleeve.
  • two opposing partial sections of the tube that forms the edge reinforcement are not overmolded, but are exposed and serve as handles or as attack surfaces for crane hooks.
  • buckets without edge reinforcement are also suitable if the ribs are spaced apart across the circumference of the vessel have the bulging outwards and downwards.
  • the invention improves the bucket of the type mentioned at the outset and solves the problem on which it is based in that the plastic used for the one-piece plastic parts of the bucket is a polyolefin, that the walls made of this polyolefin at least on the longitudinal side walls beyond the curvature into one after the wall portion running below, in the manner of a brim, are continued such that the bucket wall and the wall portion forming the brim run parallel to one another or enclose an acute angle, that a plurality of transverse ribs are arranged between the bucket wall and the wall portion forming the brim, the lower edge of which is aligned with the lower edge of the wall part forming the brim is aligned and runs over its longer part parallel to the bucket bottom that the Edge reinforcement of two uniformly shaped pipe parts in the middle of the long sides is connected by two pushed-on sleeves or inserted rods or pipes, and that vertically downwardly extending short ribs are arranged on the edge of the handle holes, it being advantageous if their width
  • Such a bucket can be cheaply produced as a mass-produced article by injection molding, for which purpose polyethylene is particularly suitable as a plastic.
  • the manual work involved is extremely low, it only consists of inserting the pipe and socket parts or rods and pipes into the injection mold. These are precisely centered in the injection mold between pins that are expressed in the edge reinforcement as holes that are directed radially vertically onto the tube center, and by means of projections in the shape that are expressed as vertical slots in the plastic that are tangential to the side of the tube that the thickness of the plastic surrounding the steel pipe and the sleeves or rods and pipes is the same everywhere. This is advantageous for the stability of the bucket.
  • ribs are arranged on the edge of the handle holes, the width of which corresponds to the width of the tube-reinforced edge. These ribs prevent the pipe from tearing out of the surrounding plastic bed or tear open the edge of the plastic.
  • This design of the bucket also has the advantage that the edge rests on a large area of the fork, which not only increases the stability of the bucket during transport, but also has the advantage that the bucket is much less easily slips off the fork when the transport vehicle brakes hard. Due to the enlarged contact surface, part of the edge does not slip off the fork. As a result, the bucket does not deform as much under the load in it as with conventional designs. This effect is reinforced by the large number of cross ribs because the support is secured over the entire length of the long side walls.
  • buckets also have no crossbeams arranged on the floor parallel to the bucket transverse axis.
  • ribs of the same thickness as the bucket walls under the floor in order to prevent the floor from becoming thinner over time due to grinding when it is set up on the floor space. These ribs are thus not so much used to reinforce and stiffen the bucket shape, but only to prevent the floor material from being ground down and to prevent the bucket bottom wall from becoming thinner as a result.
  • the internal slot on the edge reinforcement has a base that is angled.
  • the spacing of the transverse ribs from one another is less than twice the spacing of the bucket wall from the wall part forming the brim. Because the closer the cross ribs are to each other, the higher the stability and the better the central wall parts that are particularly vulnerable to deformation are protected. It can have the advantage if the transverse ribs are not arranged parallel to each other, but rather two adjacent transverse ribs form an acute angle with each other. B. are V or W-shaped.
  • the truncated pyramid-shaped bucket has longitudinal side walls 1, end side walls 2 and a bottom 3.
  • the side walls 1, 2 are provided with an edge reinforcement tube 4 and sleeves 5 comprising an edge 6 at the top.
  • the tubes 4 and the sleeves 5 are completely surrounded by plastic in the area of the long sides 1.
  • the tubes 4 only emerge in a partial area of the side walls without a plastic sheathing, specifically in the area of the recesses 7 serving as hand or crane hook holes rib 8 directed below, which represents a reinforcement of the plastic casing 6 in the region of the edge.
  • These ribs 8 prevent the plastic sheath 6 from tearing out where the tube 4 emerges from the plastic sheath 6.
  • the tube 4 is angled at an obtuse angle, preferably 40 °. The apex of this bend points upwards.
  • the sleeves 5 connecting the two pipe parts 4 are arranged in the middle of the long sides.
  • the bottom 3 has ribs 9 on the underside, the height of which is only small and suitably corresponds to the thickness of the wall material. These ribs have less of a reinforcing function than the function of preventing the soil material from being ground down when the bucket is being ground on the ground.
  • the plastic covering 6 has holes 10 in the area of the edge reinforcement, which extend vertically and radially to the center of the tube 4. These holes come from pins in the injection mold, which were used for the horizontal centering of the tube 4 during the injection molding.
  • the sheathing 6 also has slots 11 and 12, which also served to center the tube 4 in the injection mold during the injection molding process. These slots 11, 12 run essentially vertically and tangentially to the tube 4. They can be angular or rounded. They come from projections in the shape that were used to center the tube 4.
  • these holes and slits which form the subject of the application according to EP-A No. 0079984, serve to check that the sheathing 6 around the tube 4 has the same thickness everywhere.
  • the slot 12 has a base which is angled and preferably forms an angle of 135 °. This bend means that the plastic of the wall merges seamlessly with the plastic of the casing. Centering holes can also be made where the sleeve 5 is located. These centering holes and centering slots 11, 12 are of great importance for the durability of the buckets because they ensure the uniform thickness of the plastic sheathing. These holes 10 and slots 11, 12 generally do not connect the tube 4 to the outside atmosphere because a very thin plastic skin has formed on the bottom of the holes 10 and the slots 11, 12 during the injection molding process.
  • the upper edge 6, with its curvature running outwards, is continued downward beyond it with a wall part 19 in the manner of a brim.
  • This wall part 19 runs either parallel to the longitudinal side wall 1 or at an acute angle, but expediently perpendicular to the bucket bottom 3.
  • transverse ribs 21 Between this wall part 19 and the bucket wall 1 there is a large number of transverse ribs 21, the lower edge of which is flush with the lower edge of the wall part 19 forming the brim and runs parallel to the bucket bottom over its longer part.
  • the distance A between the transverse ribs 21 is expediently smaller than twice the distance B between the bucket wall 1 and the wall part 19 forming the brim.
  • transverse ribs are perpendicular to the longitudinal side wall 1 and to which the brim forming wall part 19. But that doesn't have to be the case.
  • transverse ribs can also have a different arrangement, namely a V-shaped arrangement for the transverse ribs 15, a W-shaped arrangement for the transverse ribs 14 and a U-shaped arrangement for the transverse ribs 13.
  • the stability of the container can be greatly increased by the steel tube ring.
  • the transverse ribs 21, 13, 14, 15 are located under the curvature that the plastic encasing the steel tube 4 forms.
  • the height C of the transverse ribs 21 is expediently at least as high as the diameter of the steel tube reinforcement ring 4, 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)

Claims (6)

1. Benne en matière plastique possédant la forme d'un tronc de pyramide et comportant un renforcement de ses bords, constitué par un tube noyé dans la matière plastique qui est coudé, dans la zone des parois latérales les plus petites, selon un angle obtus dont la pointe est dirigée vers le haut, et qui est à nu, au niveau du sommet de l'angle, par suite de la présence de deux trous formant organes de préhension, caractérisée en ce que la matière plastique utilisée des pièces en matière plastique réalisées d'un seul tenant de la benne est une polyoléfine, que les parois fabriquées avec cette polyoléfine se prolongent au-delà de la partie cintrée au moins au niveau des parois des côtés longitudinaux (1 ) par un élément de paroi (19) s'étendant vers le bas à la manière d'un rabat de sorte que la paroi (1 ) de la benne et l'élément de paroi (19) constituant le rabat sont parallèles l'un à l'autre ou forment entre eux un angle aigu, qu'entre la paroi (1 ) de la benne et l'élément de paroi (19) constituant le rabat il est prévu un grand nombre de nervures transversales (21 ), dont le bord inférieur est aligné avec le bord inférieur de l'élément de paroi (19) constituant le rabat et s'étend, sur sa plus longue partie, parallèlement au fond de la benne, que le renforcement réalisé sur les bords, qui est constitué par deux éléments de tube (4) de même forme, est relié à lui-même au niveau des centres des côtés longitudinaux (1 ) par deux manchons (5) emmanchés sur les éléments de tube ou par deux barres ou deux tubes insérés dans les éléments de tube, et que de courtes nervures (8) s'étendant vers le bas sont disposées sur le bord des trous (7) formant organe de préhension.
2. Benne selon la revendication 1, caractérisée en ce que des couples de trous (10) verticaux dirigés radialement vers l'axe du tube alternent avec des couples de fentes verticales (11, 12) disposées tangentiellement par rapport au tube (4), les couples de trous et de fentes étant ménagés dans la matière plastique (6) entourant le renforcement des bords à l'extérieur des manchons (5).
3. Benne selon la revendication 2, caractérisée en ce que la surface de base de la fente (12) dirigée vers l'intérieur possède un coude ou un arrondi.
4. Benne selon la revendication 1, caractérisée en ce que la distance réciproque (A) des nervures transversales (21 ) est inférieure au double de la distance (B) existant entre la paroi de la benne et l'élément de paroi (19) constituant le rabat.
5. Benne selon la revendication 1, caractérisée en ce que l'élément de paroi (19) constituant le rabat est situé dans un plan perpendiculaire au fond (3) de la benne.
6. Benne selon la revendication 1, caractérisée en ce que sous le fond (3) sont disposées des nervures (9) de l'épaisseur des parois de la benne.
EP82110762A 1981-11-25 1982-11-22 Auge en matière plastique Expired EP0080197B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110762T ATE12614T1 (de) 1981-11-25 1982-11-22 Kuebel aus kunststoff.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE19818134335 DE8134335U1 (de) 1981-11-25 1981-11-25 Kuebel aus Kunststoff
DE3146685A DE3146685A1 (de) 1981-11-25 1981-11-25 "kuebel aus kunststoff"
DE8134335U 1981-11-25
DE3146685 1981-11-25
DE19823203995 DE3203995A1 (de) 1982-02-05 1982-02-05 Kuebel aus kunststoff
DE3203995 1982-02-05
DE8202987U 1982-02-05
DE19828202987 DE8202987U1 (de) 1982-02-05 1982-02-05 Kuebel aus Kunststoff

Publications (2)

Publication Number Publication Date
EP0080197A1 EP0080197A1 (fr) 1983-06-01
EP0080197B1 true EP0080197B1 (fr) 1985-04-10

Family

ID=27432742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110762A Expired EP0080197B1 (fr) 1981-11-25 1982-11-22 Auge en matière plastique

Country Status (2)

Country Link
EP (1) EP0080197B1 (fr)
DE (1) DE3263029D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143479B (en) * 1983-07-11 1987-02-18 Glasdon Ltd Improvements in or relating to bins
GB9906779D0 (en) * 1999-03-25 1999-05-19 Taylor Egbert H & Company Ltd Container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169840B (de) * 1957-12-21 1964-05-06 Mauser Kg Randausbildung an Gefaessen
DE1149292B (de) * 1960-01-25 1963-05-22 Friedrich Stuckenbroeker Randverstaerkung fuer Transportbehaelter aus Kunststoff
FR1379277A (fr) * 1963-12-26 1964-11-20 Cogindus Bac pour manutention ou autres usages
DE2708450C3 (de) * 1977-02-26 1980-12-11 Staba Handels- Und Transportgesellschaft Mbh, 4720 Beckum Transportbehälter für Mörtel

Also Published As

Publication number Publication date
DE3263029D1 (en) 1985-05-15
EP0080197A1 (fr) 1983-06-01

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