EP0079984A2 - Auge en matière plastique - Google Patents

Auge en matière plastique Download PDF

Info

Publication number
EP0079984A2
EP0079984A2 EP81110191A EP81110191A EP0079984A2 EP 0079984 A2 EP0079984 A2 EP 0079984A2 EP 81110191 A EP81110191 A EP 81110191A EP 81110191 A EP81110191 A EP 81110191A EP 0079984 A2 EP0079984 A2 EP 0079984A2
Authority
EP
European Patent Office
Prior art keywords
plastic
edge
tube
bucket
ribs
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
EP81110191A
Other languages
German (de)
English (en)
Other versions
EP0079984A3 (en
EP0079984B1 (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
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 areas of the frame open in the direction of extension of the frame parts that serve as eyelets for crane hooks or the like, with reinforcing ribs on the outside of the container 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 49 292 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 between rule pins, which are expressed in the edge reinforcement as vertically radially directed holes on the pipe means and by projections in the form, which are expressed as vertical, laterally tangent slots on the pipe in the plastic, precisely centered in the injection mold, 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 comprising an 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 occur only in a partial area of the Side walls without a plastic sheath emerge, 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 region 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. If these pairs of holes 10 are in the sheathing 6, the sheathing 6 also has slots 11 12, which also center during the fueling process tion of the tube 4 had served in the injection mold. 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 serve to check that the sheathing 6 around the tube 4 has the same thickness everywhere.
  • the slot 12 has a base surface which is angled and encloses an angle of preferably 135 0th 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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Springs (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Sewage (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
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
DE3146685A DE3146685A1 (de) 1981-11-25 1981-11-25 "kuebel aus kunststoff"
DE3146685 1981-11-25

Publications (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143479A (en) * 1983-07-11 1985-02-13 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143479A (en) * 1983-07-11 1985-02-13 Glasdon Ltd Improvements in or relating to bins

Also Published As

Publication number Publication date
ATE12920T1 (de) 1985-05-15
EP0079984A3 (en) 1983-06-29
DE3170197D1 (en) 1985-05-30
EP0079984B1 (fr) 1985-04-24
DE3146685A1 (de) 1983-06-01

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