EP0794400A2 - Cadre support - Google Patents

Cadre support Download PDF

Info

Publication number
EP0794400A2
EP0794400A2 EP97103496A EP97103496A EP0794400A2 EP 0794400 A2 EP0794400 A2 EP 0794400A2 EP 97103496 A EP97103496 A EP 97103496A EP 97103496 A EP97103496 A EP 97103496A EP 0794400 A2 EP0794400 A2 EP 0794400A2
Authority
EP
European Patent Office
Prior art keywords
web
support frame
parts
web parts
web part
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
EP97103496A
Other languages
German (de)
English (en)
Other versions
EP0794400B1 (fr
EP0794400A3 (fr
Inventor
Ulrich Speck
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.)
LTG Lufttechnische GmbH
Original Assignee
LTG Lufttechnische 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 LTG Lufttechnische GmbH filed Critical LTG Lufttechnische GmbH
Publication of EP0794400A2 publication Critical patent/EP0794400A2/fr
Publication of EP0794400A3 publication Critical patent/EP0794400A3/fr
Application granted granted Critical
Publication of EP0794400B1 publication Critical patent/EP0794400B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/02—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle
    • F26B15/08—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle in a vertical plane
    • F26B15/085—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle in a vertical plane with endless clamp or tray conveyor, e.g. wicket conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/14—Chambers, containers, receptacles of simple construction
    • F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack

Definitions

  • the invention relates to a support frame, in particular for a transport device of flat objects, preferably provided with a surface coating, with a plurality of web parts welded together.
  • Support frames of the type mentioned are known. A large number of them are accommodated in a strand-like transport device and are used, in particular, to receive surface-coated objects, for example painted or printed metal sheets, and to transport them, for example, through a drying oven. In order to avoid damage to the surface coatings, it is necessary for the objects to lie as far as possible against the associated support frame; In particular, point systems and the like are disadvantageous, which can arise, for example, if corners or edges protrude from the welded-together web parts due to a not quite precise fitting. Also, welding beads that may have been created by welding the web parts together must be removed in the course of post-processing so that the risk of damage mentioned is eliminated.
  • the known support frames consist of a large number of individual parts, so that there are relatively high manufacturing costs.
  • the invention is therefore based on the object of specifying a support frame of the type mentioned at the outset which enables safe and damage-free transport of the objects and is simple and inexpensive to produce.
  • At least one (first) web part has a cross-sectional profile which has at least one bead projecting from a fastening surface to another (second) web part.
  • at least one web part of the support frame is thus created from a profile which, viewed in cross section, has a bulge which lies to the side of a fastening surface.
  • This fastening surface represents the contact surface of two adjoining web parts, these two web parts being welded to one another in the region of the fastening surface.
  • the welding is preferably carried out by means of spot welding.
  • one web part is provided with embossing lugs which, during the electrical welding process, come into contact with the other web part, melt and produce the composite in this way.
  • the one web part has the bulge projecting beyond the fastening surface, it is ensured that material spraying off in this way is deflected by the bulge, that is to say it is oriented in one direction by the deflecting movement, that it does not protrude above the receiving surface and therefore cannot lead to damage when transporting the objects.
  • the bead results in mechanical stiffening, so that the support frame — despite being light in weight — obtains a high degree of rigidity and thus is less prone to vibrations and the like in the transport device, which is also positive for the sensitive, coated objects.
  • the mechanical stiffening due to the bead also has the advantage that - as in the prior art - the "doubling" of web parts can be omitted.
  • “Double” is understood to mean the welding together of two web parts that are at least partially identical in design in order to double the cross section and thus achieve a higher mechanical strength.
  • the word “bead” is used to describe the cross-sectional configuration of the first web part.
  • Bead is to be understood to mean any cross-sectional configuration that includes a profile web that protrudes in the manner of a nose, the cross-sectional contour of which can be rounded or else can be configured to be angular.
  • the first web part has at least two beads which form a receiving groove between them for the second web part.
  • the receiving groove also has the advantage that an oblique or positionally incorrect welding of web parts cannot occur because it performs a guiding function. This prevents a web part from projecting beyond the receiving surface when the web parts are joined together.
  • the first web part has an H-shaped cross-sectional profile.
  • a receiving groove is formed on both sides of the web part, so that other, second web parts can be welded on to both sides in a simple manner.
  • two, in particular straight, side spacing parts are provided. These are attached with their one end regions to the transport device and, due to their profiling, form the essential supporting parts of the wire frame. Second web parts are welded between them, whereby the receiving surface is formed, whereby support ears can be welded onto the other sides of the two H-shaped cross-sectional profiles, whereby the receiving surface is considerably enlarged.
  • the second profile part preferably has a substantially rectangular cross section, so that it can be optimally introduced into the receiving groove of the first web part.
  • "Rectangular” does not necessarily mean that there is a strictly geometric rectangular cross-sectional contour, but it does this also includes contours with rounded corners or also with curved sides, for example opposite end faces.
  • the fastening surface extends transversely, in particular rectangularly, to the object receiving surface. Because of this orientation, it is always ensured that, on the one hand, the mechanical stiffening is effective and, on the other hand, deflection of welding beads is guaranteed, so that the receiving surface is not overlooked.
  • the end regions of all the second web parts are welded to the first web parts. Since the first web parts have the profiling, in particular a receiving groove, it is ensured that the ends of the second web parts are not connected to the first web parts in such a sloping manner that protruding edges and the like are formed. Rather, the receiving groove forms a corresponding guide, which prevents such protruding edges and the like from occurring during production, thereby ensuring that the objects to be picked up are not scratched.
  • the construction of the support frame according to the invention is carried out in such a way that the components have a continuous line, which results on the one hand from the end regions of the second web parts fastened to the first web parts and also from the fact that in the central region of the support frame only continuous parts are connected to each other, especially welded, as the ends - as I said the first web parts are connected. If, during manufacture, there is an unintentional offset between two web sections that are connected to one another in the middle, this does not lead to protruding ends due to the continuous lines, but does not have a negative effect on the gentle transport of the flat objects. On this occasion, however, it should be clarified that the normal (flawless) design provides that the adjoining and mutually fastened sections of the inner web parts run in alignment with one another, that is to say are not offset relative to one another.
  • the support frame it is further provided that no web part or web part section runs at right angles to the transport direction when the panels are introduced.
  • the support frame is approximately in a horizontal position.
  • the object to be introduced is then moved in or approximately in the longitudinal direction of the first web parts. Since none of the web parts forms a right angle, jiggling or jerky sliding of the objects is avoided, so that the surface is protected.
  • FIG. 1 shows the top view of a support frame 1 which has web parts 2 and 3 which form first web parts. Furthermore, the support frame 1 has web parts 4, 5 and 6, which form second web parts. Furthermore, web parts 7 to 12 are provided, which form second web parts and are each designed as a support ear 13. Furthermore, the support frame 1 has two spacers 14, which will not be discussed in more detail below, since they are insignificant for the invention.
  • the first web parts 2, 3 are profiled in cross section in such a way that at least one bead 15 is formed, which is connected in one piece to the web part and is shown in cross-hatching in FIG. 6 for the sake of clarity.
  • the first web part 2, 3 preferably has an H-shaped cross-sectional profile 16, as can be seen in FIG. 6.
  • the H contour leads to two side webs 17, 18, which are connected to one another in one piece via a cross web 19.
  • a receiving groove 22, 23 is therefore formed on the upper side 20 and the lower side 21.
  • each receiving groove 22, 23 form a side wall of the associated one Bead 15, the top 20 or bottom 21 forming the respective crown of the associated bead 15 and part of the side surface 25 or 26 of the side webs 17 or 18, a respective other side area of the associated bead 15.
  • the side surfaces 25 and 26 are spherical, so that objects supported by the support frame are placed gently.
  • the two web parts 2 and 3 are straight, wherein they are spaced approximately parallel to one another.
  • the web parts 4 to 6 are arranged between the two web parts 2 and 3.
  • the support ears 13 are located on the other side of the web parts 2 and 3, the web parts 7 to 9 being assigned to the web part 2 and the web parts 10 to 12 being assigned to the web part 3.
  • the second web parts 4 to 12 have an essentially rectangular cross-sectional profile.
  • the web part 4 is shown as an example in this figure. It has two flat sides 27, 28 running parallel to one another, and two curved end faces 29, 30.
  • the side 28 is designed flat, that is to say the side 27 has an arbitrary contour.
  • One flat side is sufficient, and only that which is necessary for the connection to the first web parts.
  • the dimension between the end faces 29 and 30 corresponds - within defined tolerances - to the width of the receiving groove 22, 23, so that a positionally precise arrangement according to FIG. 6 is simple Way is possible.
  • a fastening surface 31 is formed, that is to say that it is the contact surface between the two parts mentioned.
  • the fastening surface 31 is formed by the side 28 resting against the base 32 of the receiving groove 22.
  • the second web part 4 has approximately a U-shaped central part 33, the lower U-web 34 having a kink 35, so that the lower U-web 34 runs at an obtuse angle.
  • transverse webs 36 are bent approximately at a 90 ° angle, of which in turn connecting webs 37 are bent, which run approximately parallel to the legs of the U.
  • the attachment of the connecting webs 37 to the first web parts 2, 3 is shown in FIGS. 4 and 5. This will be discussed in more detail below.
  • the second web parts 5 and 6 are mirror images of one another, so that only the web part 5 is dealt with in the following. It has approximately a U-shape with two U-legs 38 and a base web 39.
  • the base web 39 is slightly angled in the area of its one end, so that a contact zone 40 to the adjacent web part 6 is created.
  • the two free ends 41 of the U-legs 38 also form connecting webs 37 which are connected to the web profile 2.
  • the upper U-leg 38 of the web part 5 in FIG. 1 is connected to a section of the U-web 34.
  • the support ears 13 have a loop-shaped course and each end has an angled connecting web 37 with which they are fastened to the web parts 2 and 3, respectively.
  • FIG. 3 shows the connection zone of a first and a second web part, for example the connecting web 37 of a support tube 13 and the web part 2.
  • FIG. 3 shows the state before the said parts were welded.
  • the connecting web 37 is provided with embossing lugs 42, which have been formed by a point embossing process in the direction of the arrow 43 shown in FIG. 3.
  • the connecting web 37 is introduced into the corresponding receiving groove 23, so that the embossing lugs 42 rest on the base 32 or the fastening surface 31.
  • the welding poles of a welding machine not shown, are connected to the parts to be joined and the connecting web 37 is pressed completely into the receiving groove 23.
  • the material of the embossing lugs 42 melts and a firm welded connection is created.
  • welding material that may spray off to the side cannot reach the side surfaces 25 or 26, in particular not protrude beyond them, since the spraying material is deflected by the lateral groove walls 24.
  • FIGS. 4 and 5 show the connection zone between the web part 2 and the web part 4. This is identified in FIG. 1 by a dashed circle 44. It can be seen that the substantially rectangular profile of the second web part 4 in the receiving groove also there 22 of the first web part 2 lies in position and the connection is produced by means of spot welding connections 45 in accordance with the above description.
  • a further exemplary embodiment of a support frame (not shown) is discussed below, which differs only in a few details from the exemplary embodiment in FIG. 1, so that only the differences will be discussed below.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Spray Control Apparatus (AREA)
  • Wire Processing (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Packaging Frangible Articles (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP97103496A 1996-03-08 1997-03-04 Cadre en fil Expired - Lifetime EP0794400B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19609023A DE19609023C2 (de) 1996-03-08 1996-03-08 Stützrahmen
DE19609023 1996-03-08

Publications (3)

Publication Number Publication Date
EP0794400A2 true EP0794400A2 (fr) 1997-09-10
EP0794400A3 EP0794400A3 (fr) 1998-04-22
EP0794400B1 EP0794400B1 (fr) 2002-08-07

Family

ID=7787639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97103496A Expired - Lifetime EP0794400B1 (fr) 1996-03-08 1997-03-04 Cadre en fil

Country Status (4)

Country Link
US (1) US5775517A (fr)
EP (1) EP0794400B1 (fr)
DE (2) DE19609023C2 (fr)
ES (1) ES2179970T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD434055S (en) * 1999-11-16 2000-11-21 Milazzo Lee J Wicket
US7325486B1 (en) * 2002-12-04 2008-02-05 Alkar-Rapidpak, Inc. Food processing apparatus and method
DE102009010070B4 (de) * 2009-02-12 2016-09-15 Kba-Metalprint Gmbh Stützrahmen
DE102012104002A1 (de) 2012-05-07 2013-11-07 Markus Eble Stützrahmen für eine Transporteinrichtung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338015A (en) * 1942-09-14 1943-12-28 Continental Can Co Sheet bowing support for oven conveyers
FR997840A (fr) * 1945-08-07 1952-01-10 Comp Generale Electricite Mode d'assemblage de deux parois ou cloisons métalliques
GB907214A (en) * 1958-05-14 1962-10-03 Rodd O Neill Engineering Compa Improvements in or relating to skips
US3574377A (en) * 1968-12-24 1971-04-13 Harriman Mfg Co Cushioned joint of modular iron to steel
DE2444684B1 (de) * 1974-09-18 1976-03-11 Bosch Siemens Hausgeraete Verbundkoerper aus wenigstens zwei Blechteilen mit Oberflaechenbeschichtung,insbesondere bei einem Back- und Bratrohr
DE3510779A1 (de) * 1985-03-25 1986-09-25 Audi AG, 8070 Ingolstadt Verfahren zum verbinden von zwei oder mehr blechen
EP0506834A1 (fr) * 1989-12-18 1992-10-07 Ltg Lufttechnische Gmbh Cadre de support pour dispositif de transport en continu.
GB2277348A (en) * 1993-04-23 1994-10-26 Mul T Lock Ltd Blast protective window

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2316177A (en) * 1941-03-11 1943-04-13 American Can Co Conveyer
US2821286A (en) * 1954-07-12 1958-01-28 Young Brothers Company Wicket for sheet conveyor
DE1239244B (de) * 1964-09-01 1967-04-20 Erich Weber Daempfer fuer die Stuetzbuegel fuer in Durchlauf-trocknern stehend zu befoerderndes Blattgut
US3572497A (en) * 1968-12-18 1971-03-30 Bangor Punta Operations Inc Wicket and method of construction
DE2403671A1 (de) * 1974-01-25 1975-08-07 Ralfs Gmbh Foerderkanal fuer hochkant-foerderanlagen
DE3816601C2 (de) * 1987-05-18 1997-08-21 Robert Wenzler Linearbewegungsvorrichtung
US5071305A (en) * 1989-08-03 1991-12-10 Ezio Curti Device for supporting and turning over board-like objects, to be transported through a continuous circulation oven
US5213196A (en) * 1989-12-18 1993-05-25 Ltg Lufttechnische Gesellschaft Mit Beschrankter Haftung Support frame for a continuous conveyor installation
DE4022411C2 (de) * 1990-07-13 1994-08-11 Mueller Thomas Gmbh Vorrichtung zum Transport flächiger Werkstücke
DE4200500C2 (de) * 1991-01-12 1993-12-02 Marc Polis Anordnung zur Bevorratung von Waren
DE4139812C2 (de) * 1991-12-03 2002-06-06 Ltg Lufttechnische Gmbh Stützrahmen
DE4339092C2 (de) * 1993-11-16 1995-10-19 Hubertus Dipl Ing Hein Transportvorrichtung für Flachmaterial
DE9406152U1 (de) * 1994-04-14 1994-08-04 Herbert Kannegiesser GmbH + Co, 32602 Vlotho Vorrichtung zum Transport von Gegenständen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338015A (en) * 1942-09-14 1943-12-28 Continental Can Co Sheet bowing support for oven conveyers
FR997840A (fr) * 1945-08-07 1952-01-10 Comp Generale Electricite Mode d'assemblage de deux parois ou cloisons métalliques
GB907214A (en) * 1958-05-14 1962-10-03 Rodd O Neill Engineering Compa Improvements in or relating to skips
US3574377A (en) * 1968-12-24 1971-04-13 Harriman Mfg Co Cushioned joint of modular iron to steel
DE2444684B1 (de) * 1974-09-18 1976-03-11 Bosch Siemens Hausgeraete Verbundkoerper aus wenigstens zwei Blechteilen mit Oberflaechenbeschichtung,insbesondere bei einem Back- und Bratrohr
DE3510779A1 (de) * 1985-03-25 1986-09-25 Audi AG, 8070 Ingolstadt Verfahren zum verbinden von zwei oder mehr blechen
EP0506834A1 (fr) * 1989-12-18 1992-10-07 Ltg Lufttechnische Gmbh Cadre de support pour dispositif de transport en continu.
GB2277348A (en) * 1993-04-23 1994-10-26 Mul T Lock Ltd Blast protective window

Also Published As

Publication number Publication date
DE19609023C2 (de) 1998-02-19
US5775517A (en) 1998-07-07
DE59707892D1 (de) 2002-09-12
DE19609023A1 (de) 1997-09-11
ES2179970T3 (es) 2003-02-01
EP0794400B1 (fr) 2002-08-07
EP0794400A3 (fr) 1998-04-22

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