EP0781233A1 - Mechanical connection of printed circuit boards for building three-dimensional structures from flat printed circuit board waste - Google Patents

Mechanical connection of printed circuit boards for building three-dimensional structures from flat printed circuit board waste

Info

Publication number
EP0781233A1
EP0781233A1 EP95929647A EP95929647A EP0781233A1 EP 0781233 A1 EP0781233 A1 EP 0781233A1 EP 95929647 A EP95929647 A EP 95929647A EP 95929647 A EP95929647 A EP 95929647A EP 0781233 A1 EP0781233 A1 EP 0781233A1
Authority
EP
European Patent Office
Prior art keywords
printed circuit
circuit board
slot
edge
tab
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Withdrawn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
EP95929647A
Other languages
German (de)
French (fr)
Inventor
Günther Brodtrager
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.)
BRODTRAGER, GUENTER
Original Assignee
Brodtrager Guenther
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 Brodtrager Guenther filed Critical Brodtrager Guenther
Publication of EP0781233A1 publication Critical patent/EP0781233A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/366—Assembling printed circuits with other printed circuits substantially perpendicularly to each other
    • 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
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
    • B65D11/1866—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected with detachable components
    • B65D11/1873—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected with detachable components all walls are detached from each other to collapse the container
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/04—Assemblies of printed circuits
    • H05K2201/048—Second PCB mounted on first PCB by inserting in window or holes of the first PCB
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09009—Substrate related
    • H05K2201/09063—Holes or slots in insulating substrate not used for electrical connections
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
    • H05K2201/09854—Hole or via having special cross-section, e.g. elliptical
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431—Details of mounted components
    • H05K2201/10598—Means for fastening a component, a casing or a heat sink whereby a pressure is exerted on the component towards the PCB

Definitions

  • the present invention relates to a mechanical connection for printed circuit boards for building up spatial structures from flat printed circuit board waste, the printed circuit boards being connected to one another at a right angle.
  • this circuit board waste represents an energetically high-quality, valuable material which should be recycled for other purposes due to its good optical and mechanical properties.
  • the aim of the invention is to create a mechanical connection for printed circuit board waste pieces, which makes it possible to assemble the printed circuit board pieces in a simple manner and without additional connecting elements to form spatial structures for any purpose.
  • the connection should be as independent as possible of the starting material used, in particular the thickness of the printed circuit boards.
  • connection does not require any additional connecting elements, is extremely easy to produce by milling or punching the printed circuit board waste, and is largely independent of the thickness of the respective printed circuit boards, because the curved configuration of the slot in connection with the one behind the outer curve The edge of the snap-in tab edges ensures a secure hold even of thinner printed circuit boards in a wider slot.
  • parallelepiped office material containers such as shelves, boxes, disk boxes, archiving boxes and the like can be used. produce.
  • EP-A-0 502 281 describes a fastening system for inscription labels for flower pots, an inscription label made of flexible plastic with its arrow-shaped tip being inserted into a slot angled on both sides in the flower pot rim and the arrow edges latching behind the slot edges.
  • An expedient embodiment of the invention is characterized in that the web attaches to the middle of the tab in order to be able to latch the tab on both sides.
  • the web attaches to one side of the tab, so that the latter only has an edge area which projects beyond the web and is intended for locking only on one side.
  • the tab is expediently rounded or tapered in order to enable easy insertion.
  • a preferred embodiment of the invention is that the web starts from an edge recess of the circuit board.
  • this creates a certain play for movements of the printed circuit board material of the printed circuit board having the slot around the slot and thus the possibility of optimizing the tension of the connection, and on the other hand the tab can be produced more easily in the case of milling: the distance between the locking edges of the tab and The edge of the circuit board from which the tab starts can be varied by positioning a milling cutter with a uniform diameter.
  • the slot extends from the edge of the side plate, so that it is open on one side and the tab can be inserted into the slot both vertically and in parallel.
  • FIG. 1 shows a slip box for the desk, which is made according to the invention from cut flat printed circuit board waste
  • FIG. 2 shows the note box of FIG. 1 in an exploded view
  • FIGS. 3a to 3f show different embodiments of the tab and the slot of the plug connection according to the invention
  • Fig. 4 shows a cross section through the tab of Fig. 3a, which is inserted into a slot according to Fig. 3f, at the level of the passage through the slot.
  • the slip box shown in FIGS. 1 and 2 is composed of five circuit boards 1 which are cut, punched or milled from flat circuit board waste.
  • the circuit boards 1 generally have a thickness in the range from 1.5 to 4 mm, although any circuit board waste available on the market can be used in any thickness.
  • the printed circuit boards 1 are each connected to one another at a right angle via a mechanical plug connection, each of which consists of a slot 2 and a tab 3.
  • the slot 2 has a width which is at least the same, but preferably greater than the thickness of the printed circuit boards 1. By choosing a uniformly wider slot, the slot configuration is largely independent of the thickness of the PCB waste used.
  • the slot is curved (FIG. 3f, FIG. 4) or curved in the form of a polygon (FIG. 3d: two-part polygon; FIG. 3e: three-part polygon), so that a curvature outer edge 8 and a curvature inner edge 9 arise (Fig.).
  • the associated tab 3 is integrally attached to the edge 5 of the associated other printed circuit board 1 via a web 4 of reduced width, so that the tab 4 has two edge regions 6 which protrude laterally beyond the web 4. It is these edge areas 6 which, in the inserted state of the tab 3, latch behind the outer edge 8 of the slot 2.
  • the tab 3 curves during insertion into the slot 2 in accordance with the curvature of the slot 2 until its edge regions 6 have completely passed through the slot 2, the tab 3 springs back into its flat state and the two edges areas 6 reach behind the slot. In the latched position shown in FIG. 4 it can be seen that the tab 3 rests at three points A, B and C in the slot 2.
  • connection shown has enough play to ensure that the connection is held securely even with different circuit board thicknesses.
  • the tab 3 springs more or less back into its initial position after passing through the slot 2.
  • the tab 3 has a protruding edge region 6 on only one side, as is shown in FIG. 3b and in the plug connections of FIGS. 1 and 2.
  • the web 4 preferably attaches to the middle of the tab 3, as shown in FIGS. 3a and 3c.
  • the slot 2 extend from the edge of the circuit board 1 so that it is open on one side.
  • the tab 3 can be inserted both in the direction perpendicular to the printed circuit board 1 having the slot 2 and also parallel to the latter. As a result, nothing changes in the latching function of the single edge region 6 of the tab 3 in this case in cooperation with the curvature of the slot 2.
  • the web 4 preferably starts from an edge recess 7 of the printed circuit board 1, as can be seen in particular in the embodiment of the tab from FIG. 3c.
  • this enables a certain movement of the material of the other printed circuit board surrounding the slot 2 into this edge recess 7, on the other hand, tabs 3 can be locked under produce different PCB thicknesses simply by attaching a single milling head with a uniform diameter D at a different distance from the edge of the circuit board 1 in order to form the web 4 by milling the tab 3 laterally.
  • the tab 3 can have a triangular, trapezoidal or otherwise tapered configuration instead of the rounded shape shown (see FIG. 3a) in order to facilitate insertion into the slot 2.
  • the exact shape of the slot is also not critical.
  • any spatial structures such as file folders, file trays, boxes, boxes and the like can be used with the aid of the plug connection described. build up.

Abstract

A mechanical connection of printed circuit boards is disclosed for building three-dimensional structures from flat printed circuit board waste. The printed circuit boards are interconnected at right angles to each other and a slot (2) with a curved or polygonal progression is cut into a printed circuit board. A tongue set in a single piece through a more narrow strip (4) on the edge of another printed circuit board may be inserted into the slot (2). When the tongue is inserted into the slot (2), the marginal areas (6) of the tongue that project sideways beyond strip (4) snap behind the outer curved edge (8) of the slot (2).

Description

Mechanische Verbindung für Leiterplatten zum Aufbau räumlicher Gebilde aus flächigem LeiterplattenabfallMechanical connection for printed circuit boards for the construction of spatial structures from flat printed circuit board waste
Die vorliegende Erfindung betrifft eine mechanische Ver- bindung für Leiterplatten zum Aufbau räumlicher Gebilde aus flächigem Leiterplattenabfall, wobei die Leiterplatten unter einem rechten Winkel miteinander verbunden sind.The present invention relates to a mechanical connection for printed circuit boards for building up spatial structures from flat printed circuit board waste, the printed circuit boards being connected to one another at a right angle.
Bei der Herstellung von Leiterplatten fallen große Mengen an Leiterplattenabfall in Form von Verschnitt und Ausschuß an. Nachforschungen bei Leiterplattenherstellern in Österreich er¬ gaben eine auf den Leiterplattenausschuß, d.h. unbestückte, nicht der Qualitätskontrolle entsprechende Leiterplatten, zu¬ rückzuführende Abfallmenge von ca. 120 t pro Jahr. Diese große Menge ist eine Folge der hohen Funktions- und Leiterbahnendich- te moderner Leiterplatten, der großen Anzahl der zur Herstel¬ lung notwendigen Verfahrensschritte, der hohen Präzisionsanfor¬ derungen bei den einzelnen Bearbeitungsverfahren verbunden mit möglichst hoher Durchsatzgeschwindigkeit, und der strengen Qua¬ litätskontrolle. Der Anteil fehlerhafter Leiterplatten liegt bei 2 bis 4 % der produzierten Menge.When manufacturing printed circuit boards, large amounts of printed circuit board waste arise in the form of waste and scrap. Investigations by PCB manufacturers in Austria revealed that the board committee, i.e. bare printed circuit boards that do not correspond to quality control, amount of waste to be recycled of approx. 120 t per year. This large quantity is a consequence of the high functional and conductor path density of modern printed circuit boards, the large number of process steps required for production, the high precision requirements for the individual processing methods combined with the highest possible throughput speed, and the strict quality control. The proportion of defective printed circuit boards is 2 to 4% of the quantity produced.
Dieser Leiterplattenabfall stellt anderseits ein energe¬ tisch hochwertiges, wertvolles Material dar, das auf Grund sei¬ ner guten optischen und mechanischen Eigenschaften für andere Zwecke wiederverwertet werden sollte. Die Erfindung setzt sich zum Ziel, eine mechanische Ver¬ bindung für Leiterplattenabfallstücke zu schaffen, die es er¬ möglicht, die Leiterplattenstücke in einfachster Weise und ohne zusätzliche Verbindungselemente zu räumlichen Gebilden für be¬ liebige Zwecke zusammenzusetzen. Die Verbindung soll gleichzei- tig möglichst unabhängig von dem verwendeten Ausgangsmaterial, insbesondere der Stärke der Leiterplatten, sein. Dieses Ziel wird erfindungsgemäß bei einer Verbindung der einleitend ge¬ nannten Art dadurch erreicht, daß in der einen Leiterplatte ein bogen- oder polygonzugförmig gekrümmter Schlitz vorgesehen ist, in den eine am Rand der anderen Leiterplatte über einen Steg verringerter Breite einstückig angesetzte Lasche einführbar ist, wobei der oder die über den Steg seitlich vorstehenden Randbereiche der Lasche im eingeführten Zustand in an sich be- kannter Weise hinter dem krümmungsäußeren Rand des Schlitzes verrasten.On the other hand, this circuit board waste represents an energetically high-quality, valuable material which should be recycled for other purposes due to its good optical and mechanical properties. The aim of the invention is to create a mechanical connection for printed circuit board waste pieces, which makes it possible to assemble the printed circuit board pieces in a simple manner and without additional connecting elements to form spatial structures for any purpose. At the same time, the connection should be as independent as possible of the starting material used, in particular the thickness of the printed circuit boards. This object is achieved according to the invention in the case of a connection of the type mentioned at the outset in that an arcuate or polygonal-shaped slot is provided in one circuit board, into which a tab which is integrally attached at the edge of the other circuit board via a web of reduced width can be inserted, wherein the edge area or portions of the tongue protruding laterally over the web in the inserted state are in themselves Known way lock behind the outer edge of the slot.
Diese Art von Verbindung kommt ohne zusätzliche Verbin¬ dungselemente aus, ist überaus einfach durch entsprechendes Fräsen oder Stanzen des Leiterplattenabfalles anzufertigen und weitgehend unabhängig von der Dicke der jeweiligen Leiterplat¬ ten, weil die gekrümmte Konfiguration des Schlitzes in Verbin¬ dung mit den hinter dem krümmungsäußeren Rand einrastenden La¬ schenrändern einen sicheren Halt auch dünnerer Leiterplattenla- sehen in einem breiteren Schlitz gewährleistet. Mit der Erfin¬ dung lassen sich beispielsweise parallelepipedische Büromate¬ rialbehälter, wie Ablagen, Schachteln, Diskettenboxen, Archi¬ vierungsboxen u.dgl. herstellen.This type of connection does not require any additional connecting elements, is extremely easy to produce by milling or punching the printed circuit board waste, and is largely independent of the thickness of the respective printed circuit boards, because the curved configuration of the slot in connection with the one behind the outer curve The edge of the snap-in tab edges ensures a secure hold even of thinner printed circuit boards in a wider slot. With the invention, for example, parallelepiped office material containers such as shelves, boxes, disk boxes, archiving boxes and the like can be used. produce.
Es sei an dieser Stelle erwähnt, daß die Art der Ver- rastung an sich aus der EP-A-0 502 281 bekannt ist, allerdings in anderem Zusammenhang und in Verbindung mit anderen Materia¬ lien. Die EP-A-0 502 281 beschreibt ein Befestigungssystem für Beschriftungsschildchen für Blumentöpfe, wobei ein Beschrif- tungsschildchen aus biegsamem Kunststoff mit seiner pfeilförmi- gen Spitze in einen beidseitig abgewinkelten Schlitz im Blumen¬ topfrand eingeführt wird und die Pfeilränder hinter den Schlitzrändern verrasten.At this point it should be mentioned that the type of locking is known per se from EP-A-0 502 281, but in a different context and in connection with other materials. EP-A-0 502 281 describes a fastening system for inscription labels for flower pots, an inscription label made of flexible plastic with its arrow-shaped tip being inserted into a slot angled on both sides in the flower pot rim and the arrow edges latching behind the slot edges.
Eine zweckmäßige Ausführungsform der Erfindung zeichnet sich dadurch aus, daß der Steg mittig an der Lasche ansetzt, um die Lasche auf beiden Seiten verrasten zu können. -Alternativ könnte aber auch in Betracht gezogen werden, daß der Steg an einer Seite der Lasche ansetzt, so daß letztere nur auf einer Seite einen über den Steg vorstehenden, zum Verrasten bestimm¬ ten Randbereich aufweist. In jedem Fall ist zweckmäßigerweise die Lasche abgerundet oder verjüngt ausgebildet, um ein leich¬ tes Einführen zu ermöglichen.An expedient embodiment of the invention is characterized in that the web attaches to the middle of the tab in order to be able to latch the tab on both sides. Alternatively, however, it could also be considered that the web attaches to one side of the tab, so that the latter only has an edge area which projects beyond the web and is intended for locking only on one side. In any case, the tab is expediently rounded or tapered in order to enable easy insertion.
Eine bevorzugte Ausführungsform der Erfindung besteht darin, daß der Steg von einer Randausnehmung der Leiterplatte ausgeht. Dadurch wird einerseits ein gewisses Spiel für Bewe- gungen des Leiterplattenmaterials der den Schlitz aufweisenden Leiterplatte um den Schlitz herum und damit die Möglichkeit ei¬ ner Zugspannungsoptimierung der Verbindung geschaffen, und an¬ derseits läßt sich die Lasche im Falle des Fräsens leichter herstellen: Der Abstand zwischen den Rastkanten der Lasche und dem Leiterplattenrand, von dem die Lasche ausgeht, kann durch entsprechendes Positionieren eines Fräsers mit einheitlichem Durchmesser variiert werden.A preferred embodiment of the invention is that the web starts from an edge recess of the circuit board. On the one hand, this creates a certain play for movements of the printed circuit board material of the printed circuit board having the slot around the slot and thus the possibility of optimizing the tension of the connection, and on the other hand the tab can be produced more easily in the case of milling: the distance between the locking edges of the tab and The edge of the circuit board from which the tab starts can be varied by positioning a milling cutter with a uniform diameter.
Gemäß einem weiteren Merkmal der Erfindung besteht auch die Möglichkeit, daß der Schlitz vom Rand der Seitenplatte aus¬ geht, so daß er einseitig offen ist und die Lasche sowohl senk¬ recht als auch parallel in den Schlitz eingeführt werden kann.According to a further feature of the invention, there is also the possibility that the slot extends from the edge of the side plate, so that it is open on one side and the tab can be inserted into the slot both vertically and in parallel.
Die Erfindung wird nachstehend an Hand von in den Zeich¬ nungen dargestellten Ausführungsbeispielen näher erläutert. In den Zeichnungen zeigtThe invention is explained in more detail below with reference to exemplary embodiments shown in the drawings. In the drawings shows
Fig. 1 eine Zettelbox für den Schreibtisch, die erfin¬ dungsgemäß aus zugeschnittenem flächigem Leiterplattenabfall gefertigt ist,1 shows a slip box for the desk, which is made according to the invention from cut flat printed circuit board waste,
Fig. 2 die Zettelbox von Fig. 1 in gesprengter Darstel- lung, die Fig. 3a bis 3f verschiedene Ausführungsformen der La¬ sche und des Schlitzes der erfindungsgemäßen Steckverbindung und2 shows the note box of FIG. 1 in an exploded view, FIGS. 3a to 3f show different embodiments of the tab and the slot of the plug connection according to the invention and
Fig. 4 einen Querschnitt durch die Lasche der Fig. 3a, die in einen Schlitz gemäß Fig. 3f eingeführt ist, auf Höhe der Durchführung durch den Schlitz.Fig. 4 shows a cross section through the tab of Fig. 3a, which is inserted into a slot according to Fig. 3f, at the level of the passage through the slot.
Die in den Fig. 1 und 2 dargestellte Zettelbox ist aus fünf Leiterplatten 1 zusammengesetzt, die aus flächigem Leiter¬ plattenabfall geschnitten, gestanzt oder gefräst werden. Die Leiterplatten 1 haben im allgemeinen eine Dicke im Bereich von 1,5 bis 4 mm, obwohl jeglicher am Markt erhältliche Leiterplat¬ tenabfall in beliebiger Stärke verwendet werden kann. Die Lei¬ terplatten 1 werden untereinander jeweils unter einem rechten Winkel über eine mechanische Steckverbindung verbunden, die je- weils aus einem Schlitz 2 und einer Lasche 3 besteht.The slip box shown in FIGS. 1 and 2 is composed of five circuit boards 1 which are cut, punched or milled from flat circuit board waste. The circuit boards 1 generally have a thickness in the range from 1.5 to 4 mm, although any circuit board waste available on the market can be used in any thickness. The printed circuit boards 1 are each connected to one another at a right angle via a mechanical plug connection, each of which consists of a slot 2 and a tab 3.
Der Schlitz 2 besitzt eine Breite, die zumindest gleich, bevorzugt aber größer als die Dicke der Leiterplatten 1 ist. Durch Wahl eines einheitlich breiteren Schlitzes ist die Schlitzkonfiguration weitgehend unabhängig von der Dicke des verwendeten Leiterplattenabfalles. Um dabei in jedem Fall eine sichere Verrastung der Laschen 3 zu erzielen, ist der Schlitz bogenförmig (Fig. 3f, Fig. 4) oder polygonzugförmig gekrümmt (Fig. 3d: zweiteiliger Polygonzug; Fig. 3e: dreiteiliger Poly¬ gonzug) , so daß ein krümmungsäußerer Rand 8 und ein krümmungs- innerer Rand 9 entstehen (Fig. ) . Die zugeordnete Lasche 3 ist über einen Steg 4 verringerter Breite einstückig am Rand 5 der zugeordneten anderen Leiterplatte 1 angesetzt, so daß die La¬ sche 4 zwei Randbereiche 6 aufweist, welche seitlich über den Steg 4 vorstehen. Es sind diese Randbereiche 6, welche im ein¬ geführten Zustand der Lasche 3 hinter dem krümmungsäußeren Rand 8 des Schlitzes 2 verrasten. Zu diesem Zweck krümmt sich die Lasche 3 während des Einführens in den Schlitz 2 entsprechend der Krümmung des Schlitzes 2, bis ihre Randbereiche 6 durch den Schlitz 2 vollständig hindurchgetreten sind, die Lasche 3 wie¬ der in ihren flachen Zustand zurückfedert und die beiden Rand¬ bereiche 6 den Schlitz hintergreifen. In der in Fig. 4 darge¬ stellten verrasteten Stellung ist ersichtlich, daß die Lasche 3 an drei Punkten A, B und C im Schlitz 2 anliegt. Die gezeigte Verbindung hat genügend Spiel, um auch bei unterschiedlichen Leiterplattendicken einen sicheren Halt der Verbindung zu gewährleisten. Je nach Leiterplattenstärke federt die Lasche 3 nach dem Durchtritt durch den Schlitz 2 mehr oder weniger in ihre Ausgangslage zurück. Für die erfindungsgemäße Funktion genügt es, wenn die La¬ sche 3 nur auf einer Seite einen vorstehenden Randbereich 6 aufweist, wie dies in Fig. 3b und bei den Steckverbindungen der Fig. 1 und 2 dargestellt ist. Bevorzugt setzt aber der Steg 4 mittig an der Lasche 3 an, wie dies in den Fig. 3a und 3c ge- zeigt ist.The slot 2 has a width which is at least the same, but preferably greater than the thickness of the printed circuit boards 1. By choosing a uniformly wider slot, the slot configuration is largely independent of the thickness of the PCB waste used. In order to achieve a secure latching of the tabs 3 in each case, the slot is curved (FIG. 3f, FIG. 4) or curved in the form of a polygon (FIG. 3d: two-part polygon; FIG. 3e: three-part polygon), so that a curvature outer edge 8 and a curvature inner edge 9 arise (Fig.). The associated tab 3 is integrally attached to the edge 5 of the associated other printed circuit board 1 via a web 4 of reduced width, so that the tab 4 has two edge regions 6 which protrude laterally beyond the web 4. It is these edge areas 6 which, in the inserted state of the tab 3, latch behind the outer edge 8 of the slot 2. For this purpose, the tab 3 curves during insertion into the slot 2 in accordance with the curvature of the slot 2 until its edge regions 6 have completely passed through the slot 2, the tab 3 springs back into its flat state and the two edges areas 6 reach behind the slot. In the latched position shown in FIG. 4 it can be seen that the tab 3 rests at three points A, B and C in the slot 2. The connection shown has enough play to ensure that the connection is held securely even with different circuit board thicknesses. Depending on the thickness of the circuit board, the tab 3 springs more or less back into its initial position after passing through the slot 2. For the function according to the invention, it is sufficient if the tab 3 has a protruding edge region 6 on only one side, as is shown in FIG. 3b and in the plug connections of FIGS. 1 and 2. However, the web 4 preferably attaches to the middle of the tab 3, as shown in FIGS. 3a and 3c.
Ferner ist es gemäß den Fig. 1 und 2 möglich, den Schlitz 2 vom Rand der Leiterplatte 1 ausgehen zu lassen, so daß er einseitig offen ist. In diesem Fall kann die Lasche 3 sowohl in Richtung senkrecht zu der den Schlitz 2 aufweisenden Leiter- platte 1 als auch parallel zu dieser eingeführt werden. An der Verrastungsfunktion des in diesem Fall einzigen Randbereiches 6 der Lasche 3 im Zusammenwirken mit der Krümmung des Schlitzes 2 ändert sich dadurch nichts.1 and 2, it is possible to let the slot 2 extend from the edge of the circuit board 1 so that it is open on one side. In this case, the tab 3 can be inserted both in the direction perpendicular to the printed circuit board 1 having the slot 2 and also parallel to the latter. As a result, nothing changes in the latching function of the single edge region 6 of the tab 3 in this case in cooperation with the curvature of the slot 2.
Bevorzugt geht der Steg 4 von einer Randausneh ung 7 der Leiterplatte 1 aus, wie dies insbesondere bei der Ausführungs¬ form der Lasche von Fig. 3c erkennbar ist. Einerseits ermög¬ licht dies eine gewisse Bewegung des den Schlitz 2 umgebenden Materials der anderen Leiterplatte in diese Randausnehmung 7 hinein, anderseits lassen sich Laschen 3 zum Verrasten unter- schiedlicher Leiterplattenstärken d einfach dadurch herstellen, daß ein einziger Fräskopf mit einheitlichem Durchmesser D in unterschiedlichem Abstand vom Rand der Leiterplatte 1 angesetzt wird, um den Steg 4 durch seitliches Einfräsen der Lasche 3 auszuformen.The web 4 preferably starts from an edge recess 7 of the printed circuit board 1, as can be seen in particular in the embodiment of the tab from FIG. 3c. On the one hand, this enables a certain movement of the material of the other printed circuit board surrounding the slot 2 into this edge recess 7, on the other hand, tabs 3 can be locked under produce different PCB thicknesses simply by attaching a single milling head with a uniform diameter D at a different distance from the edge of the circuit board 1 in order to form the web 4 by milling the tab 3 laterally.
So kann z.B. ein einheitlicher Fräskopf mit einem Durch¬ messer von D = 3 mm verwendet werden, um einerseits Schlitze 2 der Breite 3 mm zur Aufnahme von Leiterplatten des Stärkenbe¬ reiches 1,5 bis 3 mm und anderseits Laschen 3 herzustellen, die je nach Positionierung des Fräskopfes d = 1,5 bis d = 3 mm starke Leiterplatten verrasten.For example, a uniform milling head with a diameter of D = 3 mm can be used to produce slots 2 with a width of 3 mm on the one hand for receiving printed circuit boards with a thickness of 1.5 to 3 mm and on the other hand tabs 3 which, depending on the positioning of the milling head Engage d = 1.5 to d = 3 mm thick circuit boards.
Es versteht sich, daß die dargestellten Ausführungsformen nur beispielhaft sind. Insbesondere kann die Lasche 3 anstelle der dargestellten abgerundeten Form (siehe Fig. 3a) eine drei- eckige, trapezförmige oder sonstwie verjüngte Ausbildung haben, um das Einführen in den Schlitz 2 zu erleichtern. Auch die ex¬ akte Form des Schlitzes ist nicht kritisch. Schließlich lassen sich mit Hilfe der beschriebenen Steckverbindung nicht nur die in den Fig. 1 und 2 gezeigte Zettelbox, sondern beliebige räum- liehe Gebilde wie Aktenordner, Aktenablagen, Schachteln, Kisten u.dgl. aufbauen. It is understood that the illustrated embodiments are only exemplary. In particular, the tab 3 can have a triangular, trapezoidal or otherwise tapered configuration instead of the rounded shape shown (see FIG. 3a) in order to facilitate insertion into the slot 2. The exact shape of the slot is also not critical. Finally, not only the slip box shown in FIGS. 1 and 2, but also any spatial structures such as file folders, file trays, boxes, boxes and the like can be used with the aid of the plug connection described. build up.

Claims

Ansprüche : Expectations :
1. Mechanische Verbindung für Leiterplatten zum Aufbau räumlicher Gebilde aus flächigem Leiterplattenabfall, wobei die Leiterplatten unter einem rechten Winkel miteinander verbunden sind, dadurch gekennzeichnet, daß in der einen Leiterplatte (1) ein bogen- oder polygonzugförmig gekrümmter Schlitz (2) ausge¬ bildet ist, in den eine am Rand (5) der anderen Leiterplatte (1) über einen Steg (4) verringerter Breite einstückig ange- setzte Lasche (3) einführbar ist, wobei der oder die über den Steg (4) seitlich vorstehenden Randbereiche (6) der Lasche (3) im eingeführten Zustand in an sich bekannter Weise hinter dem krümmungsäußeren Rand (8) des Schlitzes (2) verrasten.1. Mechanical connection for printed circuit boards for building up spatial structures from flat printed circuit board waste, the printed circuit boards being connected to one another at a right angle, characterized in that in the one printed circuit board (1) an arcuate or polygonal curved slot (2) is formed , into which a tab (3) which is integrally attached at the edge (5) of the other printed circuit board (1) via a web (4) of reduced width can be inserted, the edge area (6) projecting laterally over the web (4) engage the tab (3) in the inserted state in a manner known per se behind the outer edge of the curvature (8) of the slot (2).
2. Mechanische Verbindung nach Anspruch 1, dadurch ge- kennzeichnet, daß der Steg (4) von einer Randausnehmung (7) der2. Mechanical connection according to claim 1, characterized in that the web (4) from an edge recess (7)
Leiterplatte (1) ausgeht.PCB (1) goes out.
3. Mechanische Verbindung nach Anspruch 1 oder 2, da¬ durch gekennzeichnet, daß der Schlitz (2) vom Rand der Leiter¬ platte (1) ausgeht, so daß er einseitig offen ist. 3. Mechanical connection according to claim 1 or 2, da¬ characterized in that the slot (2) from the edge of the printed circuit board (1) extends so that it is open on one side.
GEÄNDERTE ANSPRÜCHECHANGED REQUIREMENTS
[beim Internationalen Büro am 19. Februar 1996 (19.02.96) eingegangen, ursprüngliche Ansprüche 1-3 durch neue Ansprüche 1-5 ersetzt (1 Seite)][Received at the International Bureau on February 19, 1996 (February 19, 1996), original claims 1-3 replaced by new claims 1-5 (1 page)]
1. Satz von Leiterplatten (1), die unter rechten Winkeln zu einem räumlichen Gebilde verbindbar sind, wobei die Leiter¬ platten (1) aus flächigem Leiterplattenabfall geschnitten, ge¬ stanzt oder gefräst sind, in der jeweils einen Leiterplatte (1) ein bogen- oder polygonzugförmig gekrümmter Schlitz (2) ausge¬ bildet ist, in den eine am Rand (5) der jeweils anderen Leiter¬ platte (1) über einen Steg (4) verringerter Breite einstückig angesetzte Lasche (3) einführbar ist, und der oder die über den Steg (4) seitlich vorstehenden Randbereiche (6) der Lasche (3) im eingeführten Zustand hinter dem krümmungsäußeren Rand (8) des Schlitzes (2) verrastbar sind.1. Set of circuit boards (1) which can be connected at right angles to form a spatial structure, the circuit boards (1) being cut, punched or milled from flat circuit board waste, in each of which a circuit board (1) is bent - or polygonal curved slot (2) is formed, into which a tab (3) which is integrally attached at the edge (5) of the respective other printed circuit board (1) via a web (4) of reduced width can be inserted, and the or the edge regions (6) of the tab (3) projecting laterally over the web (4) can be locked behind the outer edge (8) of the slot (2) in the inserted state.
2. Satz von Leiterplatten nach Anspruch 1, dadurch ge¬ kennzeichnet, daß der Steg (4) von einer Randausnehmung (7) der genannten Leiterplatte (1) ausgeht.2. Set of circuit boards according to claim 1, characterized ge indicates that the web (4) from an edge recess (7) of said circuit board (1).
3. Satz von Leiterplatten nach Anspruch 2, dadurch ge¬ kennzeichnet, daß die Lasche (3) und der Steg (4) durch Fräsen gefertigt sind.3. Set of printed circuit boards according to claim 2, characterized ge indicates that the tab (3) and the web (4) are made by milling.
4. Satz von Leiterplatten nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Schlitz (2) vom Rand der ge¬ nannten Leiterplatte (1) ausgeht, so daß er einseitig offen ist.4. Set of printed circuit boards according to one of claims 1 to 3, characterized in that the slot (2) from the edge of the ge-mentioned printed circuit board (1) extends so that it is open on one side.
5. Räumliches Gebilde aus flächigem Leiterplattenabfall zwecks Wiederverwertung desselben, wobei aus dem Leiterplatten¬ abfall einzelne Leiterplatten (1) geschnitten, gestanzt oder gefräst sind, die unter rechten Winkeln miteinander verbunden sind, wobei in der jeweils einen Leiterplatte ein bogen- oder polygonzugförmig gekrümmter Schlitz (2) ausgebildet ist, in den eine am Rand (5) der jeweils anderen Leiterplatte (1) über ei¬ nen Steg (4) verringerter Breite einstückig angesetzte Lasche5. Spatial structure of flat circuit board waste for the purpose of recycling the same, wherein individual circuit boards (1) are cut, punched or milled from the circuit board waste, which are connected at right angles to one another, with an arcuate or polygonal curved slot in each circuit board (2) is formed, in which a tab integrally attached at the edge (5) of the respective other printed circuit board (1) over a web (4) of reduced width
(3) einführbar ist, und der oder die über den Steg (4) seitlich vorstehenden Randbereiche (6) der Lasche (3) im eingeführten Zustand hinter dem krümmungsäußeren Rand (8) des Schlitzes (2) verrasten. IN ARTIKEL 19GENANNTEERKLÄRUNG(3) can be inserted, and the one or more edge regions (6) of the tab (3) projecting laterally over the web (4) lock in the inserted state behind the outer edge (8) of the slot (2). DECLARATION REFERRED TO IN ARTICLE 19
Die Änderung in Anspruch 1 berücksichtigt den Offenba¬ rungsgehalt der DE 42 07 515. Die DE 42 07 515 zeigt den Aufbau eines Transportgefaches aus einzelnen flexiblen Kunststoffblät¬ tern, die jeweils unter rechtem Winkel über eine Steckverbin¬ dung verbunden sind, welche nach demselben Prinzip arbeitet wie die Steckverbindung der EP 0 502 281, d.h. mittels Verrastung einer geraden Lasche in einem gekrümmten Schlitz. Die vorlie¬ gende Erfindung beansprucht nicht das Verrastungsprinzip an sich, sondern seine Anwendung in einem System zur Wiederverwer¬ tung von Leiterplattenabfall zu nutzbringenden räumlichen Ge¬ bilden. Diese Aufgabenstellung ist völlig neu und in keiner Weise mit der DE 42 07 515 verknüpft, so daß eine zweiteilige Fassung des Anspruchs 1 nicht zweckdienlich ist, weil sie ein irreführendes Bild von dem Stand der Technik einerseits und der Erfindung anderseits vermitteln würde. Anspruch 1 wurde daher einteilig gefaßt und das neuartige Gebiet der Erfindung durch die Beanspruchung eines "Satzes von Leiterplatten" stärker her¬ vorgehoben. Ein sich auf das Endprodukt "räumliches Gebilde" beziehender nebengeordneter Anspruch wurde als Anspruch 5 hin¬ zugefügt. Die Vorteile der Ausführungsform des neuen An¬ spruchs 3 ergeben sich aus der Beschreibung Seite 2, Zeile 32 bis Seite 3, Zeile 3. The change in claim 1 takes account of the disclosure content of DE 42 07 515. DE 42 07 515 shows the construction of a transport compartment from individual flexible plastic sheets, each of which is connected at right angles via a plug connection, which is based on the same principle works like the plug connection of EP 0 502 281, ie by locking a straight tab in a curved slot. The present invention does not claim the latching principle per se, but rather its use in a system for the recycling of printed circuit board waste to form useful spatial structures. This task is completely new and in no way linked to DE 42 07 515, so that a two-part version of claim 1 is not useful because it would convey a misleading picture of the prior art on the one hand and the invention on the other. Claim 1 was therefore made in one piece and the novel field of the invention was emphasized more by the use of a "set of printed circuit boards". A secondary claim relating to the end product "spatial structure" was added as claim 5. The advantages of the embodiment of the new claim 3 result from the description on page 2, line 32 to page 3, line 3.
EP95929647A 1994-09-13 1995-09-12 Mechanical connection of printed circuit boards for building three-dimensional structures from flat printed circuit board waste Withdrawn EP0781233A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT28794U AT328U1 (en) 1994-09-13 1994-09-13 MECHANICAL CONNECTION FOR PCBS FOR BUILDING SPACIOUS IMAGES FROM FLAT-BASED PCB WASTE
AT287/94U 1994-09-13
PCT/AT1995/000179 WO1996008415A1 (en) 1994-09-13 1995-09-12 Mechanical connection of printed circuit boards for building three-dimensional structures from flat printed circuit board waste

Publications (1)

Publication Number Publication Date
EP0781233A1 true EP0781233A1 (en) 1997-07-02

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Application Number Title Priority Date Filing Date
EP95929647A Withdrawn EP0781233A1 (en) 1994-09-13 1995-09-12 Mechanical connection of printed circuit boards for building three-dimensional structures from flat printed circuit board waste

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EP (1) EP0781233A1 (en)
AT (1) AT328U1 (en)
WO (1) WO1996008415A1 (en)

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Publication number Priority date Publication date Assignee Title
DE19803692C2 (en) * 1998-01-30 2001-02-08 Tobias Marschner Process for recycling old boards and composite board produced with them
FR2818869B1 (en) * 2000-12-21 2003-09-19 Thomson Csf PRINTED CIRCUIT BOARDS FOR SECURE PLUG PERPENDICULAR CARD
EP1710164A1 (en) * 2005-03-23 2006-10-11 Lamiflex Ab A package arrangement
DE502005007219D1 (en) * 2005-09-30 2009-06-10 Siemens Ag CONNECTION OF TWO PCB OR FLAT ASSEMBLIES BY MEANS OF MECHANICAL INTERLOCK
US7972143B2 (en) 2009-02-02 2011-07-05 Tyco Electronics Corporation Printed circuit assembly
ITBO20100742A1 (en) * 2010-12-17 2012-06-18 Selta S R L GROUP OF PRINTED CIRCUIT BOARDS
ES2538017B1 (en) * 2015-02-11 2016-04-21 Montserrat COBAS DELGADO Union system of two laminar pieces

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FR2504090A1 (en) * 1981-04-17 1982-10-22 Martinand Raymond Six sided dismountable box - has sides locking together by slotting and retained by resilience of material
FR2673754B1 (en) * 1991-03-07 1994-12-09 Maxime Laguerre DEVICE FOR FIXING MEANS OF IDENTIFICATION ON CONTAINERS SUCH AS JARS FOR PACKAGING HORTICULTURAL PLANTS.
DE4207515A1 (en) * 1991-05-07 1992-11-12 Rebo Plastic Gmbh & Co Kg Storage and transport container for separate parts - has at least two main and two parallel intermediate walls, with T=shaped connections, and U=shaped holes
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Also Published As

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AT328U1 (en) 1995-08-25
WO1996008415A1 (en) 1996-03-21

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