EP0756538A1 - Assemblage inamovible de deux pieces plastiques - Google Patents

Assemblage inamovible de deux pieces plastiques

Info

Publication number
EP0756538A1
EP0756538A1 EP95917314A EP95917314A EP0756538A1 EP 0756538 A1 EP0756538 A1 EP 0756538A1 EP 95917314 A EP95917314 A EP 95917314A EP 95917314 A EP95917314 A EP 95917314A EP 0756538 A1 EP0756538 A1 EP 0756538A1
Authority
EP
European Patent Office
Prior art keywords
connection
plastic part
tongues
plastic
tongue
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.)
Withdrawn
Application number
EP95917314A
Other languages
German (de)
English (en)
Inventor
Willibald Weber
Dietmar Knaak
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.)
Tsubaki Kabelschlepp GmbH
Original Assignee
Kabelschlepp 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 Kabelschlepp GmbH filed Critical Kabelschlepp GmbH
Publication of EP0756538A1 publication Critical patent/EP0756538A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/12—Hauling- or hoisting-chains so called ornamental chains
    • F16G13/16—Hauling- or hoisting-chains so called ornamental chains with arrangements for holding electric cables, hoses, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • H02G11/006—Arrangements of electric cables or lines between relatively-movable parts using extensible carrier for the cable, e.g. self-coiling spring

Definitions

  • the invention relates to a method for forming a non-releasable connection between two plastic parts, in particular parts of energy chains, the connection allowing the plastic parts to move against one another.
  • the invention further relates to an energy supply chain in which a connection of the type mentioned is used.
  • snap connections have the disadvantage that they can come loose when there is a corresponding load. This is particularly a problem if the detached parts can get into machine elements, which can be damaged as a result. This is the case, for example, in the case of printing presses, where the economic damage can be considerable. It is therefore important to ensure that no machine elements made of plastic, such as energy supply chains, which are arranged in the area of such machines, can detach any parts articulated thereon via snap connections.
  • Claim 9 relates to a device, namely an energy chain in which a connection according to the invention is used.
  • a non-releasable connection of two plastic parts according to the invention allows the plastic parts to move against one another.
  • the connection is formed by forming at least one elongated tongue on one of the plastic parts.
  • This tongue is then deformed in such a way that it encloses the other plastic part in a non-detachable manner in a partial area. Finally, the tongue's deformed state is fixed.
  • the tongue is preferably deformed by placing an area in the foot section thereof at the connection point and then laying the tongue, which initially projects essentially perpendicularly from the first plastic part, around the connection point.
  • the connection point of the second plastic part is enclosed at least to such an extent that the two parts can no longer be separated from one another without thereby destroying the connection parts themselves.
  • the deformation achieved requires a further fixing step. there otherwise the tongue would tend to deform back towards its original shape.
  • the shape achieved in the deformation step is permanently fixed by the fixing step.
  • a connection according to the invention combines the functional advantages of a non-releasable connection with the structural advantages of a releasable connection.
  • a connection according to the above method has the advantage that it provides a non-releasable connection despite a simple initial construction.
  • such a connection still allows a relative movement of the two parts.
  • the relative movement can be rotational as well as translational and a combination of both.
  • the invention is particularly advantageously applicable to hinge-like articulated connections.
  • connection of the present invention provides a non-releasable movable connection without such a predetermined breaking point. Such a connection can therefore be exposed to higher loads.
  • Chain links of this type have a fuselage body and at least one hinged upper part, as described, for example, in EP-A 0 126 S62.
  • Certain applications of such energy chains require that the parts of the energy supply chain cannot be separated from one another, as could result from certain stresses. The risk of parts getting into sensitive machines should be eliminated. There is therefore a need to connect the upper part of a chain link to the body of the body in a movable but non-detachable manner. This is accomplished with a method according to the invention.
  • two tongues in the form of a fork are formed on the first plastic part.
  • the use of two tongues in the form of a fork has the advantage that the tongues do not have to be as long as a single tongue in order to achieve the same gos angle.
  • the tongue or tongues are made sufficiently long that their deformation completely encloses the second plastic part in a partial area. It is particularly preferred that the free end, if only one tongue is used, be connected to the first plastic part at one point. When using two tongues, the free ends of the fork-shaped tongues are connected to one another, preferably welded.
  • the second plastic part particularly preferably has a round rod-shaped connection region.
  • a hinge-like joint can be created with this method. That is, the first plastic part can be pivoted relative to the second plastic part. Furthermore, it can be provided that the first plastic part can be partially displaced relative to the second plastic part along a generally rod-shaped connection point. A such connection accordingly allows at least one degree of freedom of movement between the two parts.
  • the shape of the tongues (s) is preferably fixed by heat treatment.
  • a heat treatment eliminates the restoring force originally present after the tongue (s) have been deformed, so that the desired shape is retained.
  • a tool is, for example, a metallic welding head, which has a depression through which the deformation of the tongue to be fixed is determined.
  • the welding head is heated to such an extent that the tongue (s) can be welded by touching it with the welding head. This can take place in particular simultaneously or immediately after the assembly of the two plastic parts, preferably still in the assembly device.
  • Fig.la-ld illustratively shows a preferred embodiment of the method of the invention
  • Fig. 3 shows a chain link of an energy chain, in which
  • La-ld show a preferred embodiment of the method of the invention for forming a swivel joint.
  • the joint is formed between a first plastic part 1 and a second plastic part 2.
  • a shoulder 8 is formed, which in turn carries a rod-shaped hinge pin 7.
  • one end of the bolt 7 is formed on the shoulder 8 and is at least partially so far along its length from the remaining parts of the second plastic part 2 that a swivel joint can be formed around the bolt 7.
  • the first plastic part 1 has a joint head 9, from which a first tongue 3 and a second fork tongue 4 extend in the form of a fork.
  • the fork-shaped tongues 3 and 4 run essentially parallel to one another on their inner sides.
  • the joint head 9 with the molded tongues 3 and 4 has a groove which corresponds to the circumferential cross section of the bolt 7.
  • the ends of the tongues 3 and 4 each taper to ensure easier deformability.
  • Fig. La it is shown how the joint head 9 with the tongues 3, 4, and the bolt 7 are assembled.
  • the tongues 3, 4 slightly converge on their inner sides against their ends, so that a certain amount when joined together Snap effect is achieved.
  • FIG. 1 a shows how a fixing tool 6 is brought up to the ends of the tongues 3 and 4.
  • the fixing tool 6 is adapted in shape to the connection to be formed. In particular, it has a fillet on the side on which the connection is formed, which is adapted to the tapering ends of the tongues 3, 4. In this way, the fixing tool 6 centers itself when it is brought up to the ends of the tongues 3, 4.
  • FIG. 1b shows how the tongues 3, 4 are deformed by the action of a force F on the fixing tool 6 so that their ends move towards one another. In this way, the pin 7 is surrounded by the tongues 3, 4.
  • 1d shows the completed connection after the fixing tool 6 has been removed again.
  • 2a and 2b show the connection in two different pivot positions.
  • the throat of the fixing tool 6 the outer shape of the tongues 3, 4 and the weld 5 is determined so that the plastic parts 1, 2 can be pivoted freely about the axis of the bolt 7 against each other.
  • the shoulder 8 of the second plastic part 2 or the first plastic part 1 can also have stops in each case in order to fix the mutual pivoting range.
  • Fig. 3 shows a chain link of an energy chain, which consists of a fuselage body 2 and an upper part 1 to be pivoted thereon.
  • the swivel connection takes place according to a method according to FIGS.
  • the upper part 1 has a swivel head 9, from which two tongues extend, of which only a first tongue 4 is shown in FIG. 3.
  • a rod-shaped hinge pin 7 extends between two shoulders 8 on the torso body 2.
  • the upper part 1 is brought up to the hull body 2 in the manner shown until the hinge pin 7 rests in the joint head 9.
  • the upper part 1 is then rotated by approximately 90 ° so that a locking head 10 of the upper part 1 opposite the joint head 9 can engage at a snap-in point 11 of the body 2.
  • connection point between the hinge pin 7 and the joint head 9 is in a position as illustrated in FIG.
  • a connection can then be formed in accordance with the procedure illustrated in FIGS. 1a-1d.
  • the tongue 4 shown in FIG. 3 is shaped in such a way that pivoting of the upper part 1 is possible in the assembled but otherwise untreated state.
  • the locking head 10 and the locking point 11 represent a releasable snap connection. Therefore, the upper part 1 can be pivoted again and again into an open position, wherein in the open position there is no danger that the upper part 1 will come loose from the fuselage body 2, such as this would be the case with a conventional, releasable snap connection in the region of the joint head 9.
  • connection according to the invention is also not impaired by frequent pivoting of the upper part 1, as is the case when renewing lines in energy guiding chains, since none of the plastic parts is deformed at any point during pivoting, as is the case, for example, with a film hinge the case is.
  • the invention thus provides a reliable connection between two plastic parts, the connection being non-releasable and a movement of the plastic parts among one another being possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé visant à réaliser un assemblage inamovible de deux pièces plastiques (1, 2), qui permet aux deux pièces (1, 2) de se déplacer l'une par rapport à l'autre. L'assemblage s'obtient par formation d'au moins une languette (3, 4) sur une première pièce plastique. Cette languette (3, 4) est ensuite déformée jusqu'à ce qu'elle entoure une zone partielle d'une seconde pièce plastique, de manière inamovible. Pour finir, la forme voulue de la languette (3, 4) et obtenue par déformation est fixée. Ce type d'assemblage s'utilise avantageusement pour raccorder des pièces de chaînes conductrices d'énergie.
EP95917314A 1994-04-18 1995-04-12 Assemblage inamovible de deux pieces plastiques Withdrawn EP0756538A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19944413355 DE4413355C1 (de) 1994-04-18 1994-04-18 Nicht-lösbare Verbindung zweier Kunststoffteile
DE4413355 1994-04-18
PCT/EP1995/001362 WO1995028273A1 (fr) 1994-04-18 1995-04-12 Assemblage inamovible de deux pieces plastiques

Publications (1)

Publication Number Publication Date
EP0756538A1 true EP0756538A1 (fr) 1997-02-05

Family

ID=6515712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95917314A Withdrawn EP0756538A1 (fr) 1994-04-18 1995-04-12 Assemblage inamovible de deux pieces plastiques

Country Status (5)

Country Link
EP (1) EP0756538A1 (fr)
JP (1) JPH09512082A (fr)
CN (1) CN1146175A (fr)
DE (1) DE4413355C1 (fr)
WO (1) WO1995028273A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19523105A1 (de) * 1995-06-26 1997-01-02 Murrplastik Gmbh Schließbügel für Kettenglieder einer Energieführungskette
DE19547221B4 (de) * 1995-12-18 2007-05-24 Murrplastik Systemtechnik Gmbh Endlasche für Energieführungskette
DE59800932D1 (de) 1997-03-13 2001-08-02 Kabelschlepp Gmbh Schutzelement mit einem deckel, der in zwei unterschiedliche stabile stellungen bringbar ist
DE19739782A1 (de) * 1997-09-10 1999-04-01 Kabelschlepp Gmbh Kettenglied mit verschwenkbaren Stegen
IT1298977B1 (it) * 1998-03-31 2000-02-07 Giovanni Mauri Maglia di catena portacavi con traversino incernierato
DE10118328A1 (de) 2001-04-12 2002-11-21 Kabelschlepp Gmbh Verfahren zur Herstellung eines Kettengliedes sowie Kettenglied einer Energieführungskette
US8161616B2 (en) * 2009-09-25 2012-04-24 Pem Management, Inc. Method of manufacture for a plastic-capped panel fastener
DE202016102154U1 (de) * 2016-04-22 2017-07-26 Igus Gmbh Kettenglied für Energieführungskette und Energieführungskette

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1004230A (en) * 1964-06-03 1965-09-15 Ternes Steel Company Improvements in or relating to hinge elements
FR2387374A1 (fr) * 1977-04-15 1978-11-10 Seiller Pierre Charniere, notamment pour barrette a cheveux
DE3318365A1 (de) * 1983-05-20 1984-11-22 Kabelschlepp Gmbh, 5900 Siegen Energiefuehrungskette
JPS63205215A (ja) * 1987-02-20 1988-08-24 Kyushu Hitachi Maxell Ltd 軸受けの製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9528273A1 *

Also Published As

Publication number Publication date
DE4413355C1 (de) 1995-06-14
CN1146175A (zh) 1997-03-26
WO1995028273A1 (fr) 1995-10-26
JPH09512082A (ja) 1997-12-02

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