EP0236998B1 - Werkstückträger für zylindrische einseitig offene Werkstücke - Google Patents

Werkstückträger für zylindrische einseitig offene Werkstücke Download PDF

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Publication number
EP0236998B1
EP0236998B1 EP87103293A EP87103293A EP0236998B1 EP 0236998 B1 EP0236998 B1 EP 0236998B1 EP 87103293 A EP87103293 A EP 87103293A EP 87103293 A EP87103293 A EP 87103293A EP 0236998 B1 EP0236998 B1 EP 0236998B1
Authority
EP
European Patent Office
Prior art keywords
pistons
piston
recess
fork
plate
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 - Lifetime
Application number
EP87103293A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0236998A3 (en
EP0236998A2 (de
Inventor
Wolfgang Lang
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0236998A2 publication Critical patent/EP0236998A2/de
Publication of EP0236998A3 publication Critical patent/EP0236998A3/de
Application granted granted Critical
Publication of EP0236998B1 publication Critical patent/EP0236998B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/70—Trays provided with projections or recesses in order to assemble multiple articles, e.g. intermediate elements for stacking

Definitions

  • the invention relates to a device of the type mentioned in the preamble of the first claim.
  • Pistons for installation in piston engines, especially in internal combustion engines, are attached to the connecting rod using a piston pin.
  • a piston pin Such an arrangement is shown, for example, in US Pat. No. 4,124,010.
  • the piston pin is usually already inserted into the corresponding receiving bore in the piston at the piston manufacturer.
  • These pistons are then packed in a folding box by the piston manufacturer, which can hold a certain number of pistons without contact via a plug-in grid.
  • the boxes filled in this way are then delivered to the engine manufacturer in mesh boxes.
  • a disadvantage of this embodiment is that the pistons cannot be fixed exactly in position within the packing. This can cause damage during transport.
  • due to the lack of exact position fixation it is impossible to remove the pistons from the packaging fully automatically and deliver them for further processing, since this requires a very specific piston position. This is due to the fact that the piston pin must be partially pushed out again in order to accommodate the connecting rod.
  • the object of the present invention is to provide a workpiece carrier and a transport packaging of the type mentioned at the outset, with which the pistons can be fixed in position. According to the invention, this object is achieved by the characterizing features of the first claim.
  • the invention is based on the knowledge that the piston can be slipped over it because of the pin and is thus fixed in position due to the formation of the free pin end over the piston pin.
  • the piston crown is then inserted into the recess of the next mold plate, so that the entire piston is thereby fixed both above and below.
  • the arrangement of the next mold plate on the piston crown also protects the piston crown, which in the large number of cases has a specific configuration.
  • the mold plate itself can be made relatively thin-walled because the pot-like depression does not have to be absorbed by the thickness of the mold plate.
  • the molding plate is also particularly suitable for being made of plastic, the deep-drawing or injection molding process having proven to be an outstanding manufacturing process.
  • manufacturing by foaming or blowing is also possible. Due to the thin walls of the mold plate and its stackability, the mold plate can be reused. This significantly reduces the disposal costs, since the boxes previously used are only suitable for one-time use.
  • the warming-up of the pistons required for connecting rod assembly is simplified in the cold season, since the insulation is no longer required due to the sheathing previously available.
  • a thin-walled shaped plate for one-sided hollow cylindrical workpieces is known in general.
  • This shaped plate has pot-shaped depressions on its underside, which form sock-like projections with stepped diameter areas on the top. This makes it possible to accommodate hollow cylindrical components of different internal diameters that are open on one side. A fixation of the position of the components in the sense that it acts as an anti-rotation device for the components is not possible with this arrangement.
  • the development according to claim 3 has the advantage that the preassembled piston rings can also be immersed in the pot-like recess. This also protects them.
  • the mold plate 1 is shown in perspective. It has 16 bases 2 on its upper side - in this example. Each base carries a pin 3, which has a trough 4 in the middle.
  • the pins 3 can be conical. Their base circle diameter is chosen so that the pistons to be stacked can be easily attached.
  • Fig. 2 shows a schematic cross section through two stacked mold plates 1.
  • a piston 5 is placed on the lower mold plate 1.
  • the piston 5 is already equipped with a piston pin 6.
  • a trough 4 is provided in each pin 3 and is dimensioned such that the piston pin 6 is easily clamped in it by the trough walls.
  • the trough depth is designed in such a way that pistons of different heights can be placed securely and the piston skirt always stands on the base 2.
  • piston 5 has piston rings 7 that have already been pulled on.
  • the pins can have a base circle diameter which corresponds to the inside diameter of the piston. This also keeps the piston at its lower circumference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Buffer Packaging (AREA)
EP87103293A 1986-03-11 1987-03-07 Werkstückträger für zylindrische einseitig offene Werkstücke Expired - Lifetime EP0236998B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863608017 DE3608017A1 (de) 1986-03-11 1986-03-11 Werkstuecktraeger fuer zylindrische, einseitig offene werkstuecke
DE3608017 1986-03-11

Publications (3)

Publication Number Publication Date
EP0236998A2 EP0236998A2 (de) 1987-09-16
EP0236998A3 EP0236998A3 (en) 1988-09-21
EP0236998B1 true EP0236998B1 (de) 1990-01-17

Family

ID=6296034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103293A Expired - Lifetime EP0236998B1 (de) 1986-03-11 1987-03-07 Werkstückträger für zylindrische einseitig offene Werkstücke

Country Status (2)

Country Link
EP (1) EP0236998B1 (enExample)
DE (2) DE3608017A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135228C2 (de) * 1991-10-25 1996-03-28 Mtu Muenchen Gmbh Vorrichtung zur Festlegung von Ladegut
AT407373B (de) * 1998-03-06 2001-02-26 Karl Pawel Anordnung zum lagebeständigen verpacken von formstücken

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129884B (de) * 1956-01-21 1962-05-17 Efka Werke Kiehn Gmbh Fritz Lager- und Transportbehaelter
CH350921A (de) * 1956-06-18 1960-12-15 Cafag Cartonnagenfabrik Freibu Verpackung zur Aufnahme von durchbrochenen Gegenständen, z.B. Zifferblättern, und Verfahren zur Herstellung der Verpackung
BE670128A (enExample) * 1965-09-27 1966-01-17
AT272183B (de) * 1966-06-08 1969-06-25 Etablissemenet Allemann Praez Einrichtung zum Magazinieren von zu bearbeitenden Massenteilchen
DE6941014U (de) * 1969-10-21 1970-04-09 Knecht Filterwerke Ges Mit Bes Ladepalette
DE2055344A1 (enExample) * 1970-11-11 1972-05-18
DE2217705A1 (de) * 1971-04-20 1972-10-26 Colgate-Palmolive Co., New York, N.Y. (V.St.A.) Verpackung für zusammendrückbare Tuben oder ähnliche Behälter
DE2143246B2 (de) * 1971-08-28 1973-09-27 Fa. Richard Heinze, 4900 Herford Kombinierte Magazin- und Verpackungseinheit für eine Vielzahl von Montageteilen
US3949876A (en) * 1974-09-26 1976-04-13 Aladdin Industries, Incorporated Articles for beverage service
DE2450216A1 (de) * 1974-10-12 1976-05-06 Nebel Erhard Paletten
US4124010A (en) * 1976-12-20 1978-11-07 Dana Corporation Piston pin bore and method of finishing

Also Published As

Publication number Publication date
DE3761423D1 (de) 1990-02-22
EP0236998A3 (en) 1988-09-21
DE3608017C2 (enExample) 1988-01-21
EP0236998A2 (de) 1987-09-16
DE3608017A1 (de) 1987-09-24

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