EP0079984B1 - Auge en matière plastique - Google Patents

Auge en matière plastique Download PDF

Info

Publication number
EP0079984B1
EP0079984B1 EP81110191A EP81110191A EP0079984B1 EP 0079984 B1 EP0079984 B1 EP 0079984B1 EP 81110191 A EP81110191 A EP 81110191A EP 81110191 A EP81110191 A EP 81110191A EP 0079984 B1 EP0079984 B1 EP 0079984B1
Authority
EP
European Patent Office
Prior art keywords
tube
trough
ribs
plastics material
angle
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
EP81110191A
Other languages
German (de)
English (en)
Other versions
EP0079984A2 (fr
EP0079984A3 (en
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
Application filed by Stucki Kunststoffwerk und Werkzeugbau GmbH filed Critical Stucki Kunststoffwerk und Werkzeugbau GmbH
Priority to AT81110191T priority Critical patent/ATE12920T1/de
Publication of EP0079984A2 publication Critical patent/EP0079984A2/fr
Publication of EP0079984A3 publication Critical patent/EP0079984A3/de
Application granted granted Critical
Publication of EP0079984B1 publication Critical patent/EP0079984B1/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 made of 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 points upwards , and which is exposed in the area of the apex by two handle holes.
  • Such a plastic bucket has become known from DE-PS-27 08 450.
  • 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 leaves open areas of the frame on the end faces in the direction of extension of the frame parts that serve as eyelets for crane hooks or the like, with on the outside of the container reinforcing ribs are arranged.
  • 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.
  • buckets according to DE-PS-11 49292 which have an edge reinforcement in the form of an annularly bent metal tube, which is completely surrounded by the plastic and have an impact at least at one point on their circumference, have proven effective, the ends of the metal tube being able to be inserted by means of an insertable interior -or a push-on outer sleeve are connected to each other.
  • 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.
  • the invention improves the bucket of the type mentioned and solves the problem on which it is based in that the plastic is a polyolefin, in particular polyethylene, that the edge reinforcement is connected by two tube parts of the same shape in the middle of the long sides by two slipped sleeves that in the plastic surrounding the edge reinforcement is alternately arranged outside the sleeves, pairs of vertically radially directed holes on the pipe center and vertically extending slots tangentially adjacent to the pipe and that vertically downwardly extending short ribs are arranged on the edge of the handle holes, the width of which Corresponds to the width of the tube-reinforced edge.
  • the plastic is a polyolefin, in particular polyethylene
  • the edge reinforcement is connected by two tube parts of the same shape in the middle of the long sides by two slipped sleeves that in the plastic surrounding the edge reinforcement is alternately arranged outside the sleeves, pairs of vertically radially directed holes on the pipe center and vertically extending slots tangentially adjacent to the pipe and that vertically downwardly extending short ribs are
  • Such a bucket can be cheaply produced as a mass-produced article by injection molding.
  • the manual work involved is extremely low, it only consists of inserting the pipe and socket parts into the injection mold. These are precisely centered in the injection mold between pins, which are expressed in the edge reinforcement as holes which are directed radially vertically onto the tube means, and by means of projections in the shape, which are expressed as vertical slots in the plastic which are tangential to the side of the tube, so that the thickness of the plastic surrounding the steel pipe and the sleeves is the same everywhere. This is very important for the stability of the bucket.
  • vertically downwardly extending short 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 being torn out of the surrounding plastic bed or the edge of the plastic from being torn open.
  • the internal slot on the edge reinforcement has a base that is angled.
  • 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 at the top with an edge reinforcement tube 4 and sleeves 5 including edge 6.
  • 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 plastic sheathing, in the area of the recesses 7 serving as hand or crane hook holes.
  • 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 casing 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 casing 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. After opening the injection mold, these holes and slots are used to check that the casing 6 around the pipe 4 is equally strong.
  • the slot 12 has a base which is angled and encloses an angle of preferably 135 °. This bending ensures that the plastic of the wall merges seamlessly into 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 at the bottom of the holes 10 and the slots 11, 12 during the injection molding process.
  • short ribs 13 are attached below the edge to the outside, which preferably have the same length as the ribs 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Sewage (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Claims (4)

1. Auge en matière plastique, de configuration en tronc de pyramide, comprenant un renforcement marginal formé d'un tube noyé dans la matière plastique, qui est coudé dans la région des parois latérales les plus étroites en formant un angle aigu dont le sommet pointe vers le haut et qui est mis à nu dans la région du point du sommet par deux ouvertures formant poignées, caractérisée en ce que la matière plastique est une polyoléfine, que le renforcement marginal fait de deux éléments tubulaires (4) de même forme, est assemblé au milieu des côtés longs (1) par deux manchons (5) emmanchés sur ces éléments tubulaires, que, dans la matière plastique (6) qui enrobe le renforcement marginal, sont disposés, en dehors des manchons (5), alternativement des paires de trous (10) orientées verticalement et radialement par rapport au centre du tube, et des fentes (11, 12) s'étendant verticalement, qui sont tangentiellement adjacentes latéralement au tube (4) et qu'au bord des ouvertures de poignées (7) sont disposées de courtes nervures (8) qui s'étendent verticalement vers le bas et dont la largeur correspond sensiblement à la largeur du bord renforcé par tube de l'auge.
2. Auge selon la revendication 1, caractérisée en ce que, sur chacune des parois latérales longues (1), est disposée une paire de nervures (13) qui s'étendent verticalement vers le bas, et dont la longueur et la largeur correspondent aux nervures (8) situées à proximité des trous (7) formant poignées.
3. Auge selon la revendication 1, caractérisée en ce que des nervures (9) possédant l'épaisseur des parois de l'auge sont disposées sous le fond (3).
4. Auge selon la revendication 1, caractérisée en ce que la surface de base de la fente (12) dirigée vers l'intérieur présente un coude ou un arrondi.
EP81110191A 1981-11-25 1981-12-05 Auge en matière plastique Expired EP0079984B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81110191T ATE12920T1 (de) 1981-11-25 1981-12-05 Kuebel aus kunststoff.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3146685 1981-11-25
DE3146685A DE3146685A1 (de) 1981-11-25 1981-11-25 "kuebel aus kunststoff"

Publications (3)

Publication Number Publication Date
EP0079984A2 EP0079984A2 (fr) 1983-06-01
EP0079984A3 EP0079984A3 (en) 1983-06-29
EP0079984B1 true EP0079984B1 (fr) 1985-04-24

Family

ID=6147169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81110191A Expired EP0079984B1 (fr) 1981-11-25 1981-12-05 Auge en matière plastique

Country Status (3)

Country Link
EP (1) EP0079984B1 (fr)
AT (1) ATE12920T1 (fr)
DE (2) DE3146685A1 (fr)

Families Citing this family (1)

* 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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0079984A2 (fr) 1983-06-01
DE3146685A1 (de) 1983-06-01
DE3170197D1 (en) 1985-05-30
EP0079984A3 (en) 1983-06-29
ATE12920T1 (de) 1985-05-15

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