EP0560068A1 - Flexible shaft for toy models - Google Patents

Flexible shaft for toy models Download PDF

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Publication number
EP0560068A1
EP0560068A1 EP93102031A EP93102031A EP0560068A1 EP 0560068 A1 EP0560068 A1 EP 0560068A1 EP 93102031 A EP93102031 A EP 93102031A EP 93102031 A EP93102031 A EP 93102031A EP 0560068 A1 EP0560068 A1 EP 0560068A1
Authority
EP
European Patent Office
Prior art keywords
flexible shaft
elements
ring
shaft according
ring elements
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
EP93102031A
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German (de)
French (fr)
Other versions
EP0560068B1 (en
Inventor
Wilfried Weber
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.)
Fischerwerke Artur Fischer GmbH and Co KG
Original Assignee
Fischerwerke Artur Fischer GmbH and Co KG
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 Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP0560068A1 publication Critical patent/EP0560068A1/en
Application granted granted Critical
Publication of EP0560068B1 publication Critical patent/EP0560068B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H31/00—Gearing for toys
    • A63H31/10—Gearing mechanisms actuated by movable wires enclosed in flexible tubes
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/042—Mechanical, electrical, optical, pneumatic or hydraulic arrangements; Motors

Definitions

  • the invention relates to a flexible shaft for toy models according to the preamble of claim 1.
  • Shafts are used for power transmission in toy models or corresponding model arrangements for different purposes, for example for driving or steering a vehicle.
  • a steering shaft consisting of a wire and mounted in a flexible guide tube to the steering column of the vehicle on one side and to a crank on the other side.
  • the steering column and crank have coupling pieces in which the steering shaft is firmly clamped.
  • Such a device is thus an integral part of a finished toy model and therefore not suitable for universal use as a component of a construction kit.
  • functions are often required in toy models that also have to transmit pressure and tensile forces.
  • Bowden cables which, however, are not suitable for the transmission of compressive forces.
  • the invention has for its object to provide a flexible shaft for toy models that can be used universally and is particularly suitable for torque transmission and transmission of tensile and compressive forces.
  • the flexible shaft connecting elements are arranged, which are flexibly connected to one another via a plurality of rigidly connected ring elements made of plastic.
  • the ring elements have the advantage over a rod-shaped shaft that on the one hand a high flexibility of the shaft is obtained, while on the other hand a high torque can also be transmitted.
  • the ring elements which are preferably offset at an angle of 90 ° to one another, have the advantage that the flexible shaft is equally flexible in any direction and can transmit a high torque in any position.
  • the ring planes enclosed by the ring elements preferably lie on their central axis when the shaft is aligned. This gives a homogeneous torque transmission, i.e. H. every ring element is equally stressed during torque transmission. When bending the flexible shaft, however, the bending stress in the individual ring elements changes depending on the position of the shaft.
  • the flexible shaft is preferably made in one piece from plastic by injection molding, the connection points between adjacent ring elements forming intersection points.
  • the ring elements arranged in series can be partially or completely enclosed by a guide tube, as a result of which higher compressive forces and higher torques can be transmitted without problems.
  • a guide tube or the like is also required if tensile forces are to be transmitted when the shaft is bent.
  • the flexible shaft To connect the flexible shaft to an input shaft or an output shaft, the latter has coupling pieces located on the end faces of each of its connecting pieces.
  • connection elements 1, 2 which are connected to one another via a series of ring elements 3.
  • Successive ring elements 3 are arranged at 90 o to each other and rotated integrally connected to each other through junction points. 4
  • the ring planes 5 enclosed by the ring elements 3 run through the central axis 6 of the just-aligned flexible shaft.
  • the flexible shaft is made in one piece from plastic using the injection molding process, and depending on the requirements and field of application, a correspondingly elastic or harder plastic can be used.
  • the flexible shaft on the connection elements 1, 2 has coupling pieces 7, 8 arranged on the end face, which are profiled in such a way that a torque transmission and also a transmission of compressive and tensile forces are possible is.
  • the section A-A is shown enlarged in Figure 2.
  • the ring elements visible here are designated by the reference numbers 31, 32.
  • the flexible shaft is enclosed in the area of the ring elements 3 by a guide tube 9, which is indicated here by broken lines.

Abstract

2.1 For different cases of application, flexible shafts are needed in toy models, which shafts, in the conventional design, are not suitable for torque transmission or for the transmission of compressive and tensile forces. 2.2 In order to provide a universally utilisable flexible shaft suitable for different types of force transmission, an injection moulding is proposed which is produced integrally from plastic and, in the flexible region, consists of a series of annular elements (3) which are preferably arranged in succession, twisted through 90 DEG relative to each other in each case. A guide tube (9) may enclose the series of annular elements, as a result of which, in particular, even relatively large compressive forces can be transmitted via the flexible shaft. <IMAGE>

Description

Die Erfindung betrifft eine flexible Welle für Spielzeugmodelle gemäß der Gattung des Anspruches 1.The invention relates to a flexible shaft for toy models according to the preamble of claim 1.

Zur Kraftübertragung in Spielzeugmodellen oder entsprechenden Modellanordnungen werden für unterschiedliche Zwecke, beispielsweise für den Antrieb oder für die Lenkung eines Fahrzeuges, Wellen verwendet. Zur Lenkung von Spielzeugmodellen ist es bekannt, eine aus einem Draht bestehende und in einem biegsamen Führungsrohr gelagerte Lenkwelle mit der Lenksäule des Fahrzeuges auf der einen Seite und mit einer Kurbel auf der anderen Seite zu verbinden. Lenksäule und Kurbel weisen zu diesem Zweck Kupplungsstücke auf, in denen die Lenkwelle fest eingeklemmt ist. Eine solche Vorrichtung ist somit fester Bestandteil eines fertigen Spielzeugmodells und demzufolge für eine universelle Anwendung als Bauteil eines Konstruktionsbaukastens nicht geeignet. Neben der Drehmomentübertragung sind in Spielzeugmodellen häufig Funktionen erforderlich, bei denen auch Druck- und Zugkräfte zu übertragen sind. Für Zugkräfte ist es bekannt, Bowdenzüge zu verwenden, die allerdings nicht für die Übertragung von Druckkräften geeignet sind.Shafts are used for power transmission in toy models or corresponding model arrangements for different purposes, for example for driving or steering a vehicle. For the steering of toy models, it is known to connect a steering shaft consisting of a wire and mounted in a flexible guide tube to the steering column of the vehicle on one side and to a crank on the other side. For this purpose, the steering column and crank have coupling pieces in which the steering shaft is firmly clamped. Such a device is thus an integral part of a finished toy model and therefore not suitable for universal use as a component of a construction kit. In addition to torque transmission, functions are often required in toy models that also have to transmit pressure and tensile forces. For tensile forces, it is known to use Bowden cables, which, however, are not suitable for the transmission of compressive forces.

Der Erfindung liegt die Aufgabe zugrunde, eine flexible Welle für Spielzeugmodelle zu schaffen, die universell einsetzbar und insbesondere zur Drehmomentübertragung und zur Übertragung von Zug- und Druckkräften geeignet ist.The invention has for its object to provide a flexible shaft for toy models that can be used universally and is particularly suitable for torque transmission and transmission of tensile and compressive forces.

Die Lösung dieser Aufgabe wird mit den Merkmalen des Anspruches 1 erreicht. An beiden Enden der flexiblen Welle sind Anschlußelemente angeordnet, die über eine Vielzahl von starr verbundenen Ringelementen aus Kunststoff flexibel miteinander verbunden sind. Die Ringelemente haben dabei gegenüber einer stabförmigen Welle den Vorteil, daß einerseits eine hohe Flexibilität der Welle erhalten wird, während andererseits auch ein hohes Drehmoment übertragen werden kann. Die vorzugsweise in einem Winkel von 90o zueinander versetzt angeordneten Ringelemente bringen den Vorteil, daß die flexible Welle in jeder Richtung gleichermaßen biegsam ist und in jeder Lage ein hohes Drehmoment übertragen kann.This object is achieved with the features of claim 1. At both ends of the flexible shaft connecting elements are arranged, which are flexibly connected to one another via a plurality of rigidly connected ring elements made of plastic. The ring elements have the advantage over a rod-shaped shaft that on the one hand a high flexibility of the shaft is obtained, while on the other hand a high torque can also be transmitted. The ring elements, which are preferably offset at an angle of 90 ° to one another, have the advantage that the flexible shaft is equally flexible in any direction and can transmit a high torque in any position.

Die von den Ringelementen umschlossenen Ringebenen liegen bei gerade ausgerichteter Welle vorzugsweise auf deren Mittelachse. Dadurch erhält man eine homogene Drehmomentübertragung, d. h. jedes Ringelement wird bei der Drehmomentübertragung gleichermaßen beansprucht. Beim Biegen der flexiblen Welle ändert sich dagegen die Biegebeanspruchung in den einzelnen Ringelementen je nach Stellung der Welle.The ring planes enclosed by the ring elements preferably lie on their central axis when the shaft is aligned. This gives a homogeneous torque transmission, i.e. H. every ring element is equally stressed during torque transmission. When bending the flexible shaft, however, the bending stress in the individual ring elements changes depending on the position of the shaft.

Die flexible Welle ist vorzugsweise im Spritzgußverfahren aus Kunststoff einstückig hergestellt, wobei die Verbindungsstellen zwischen benachbarten Ringelementen Kreuzungspunkte bilden.The flexible shaft is preferably made in one piece from plastic by injection molding, the connection points between adjacent ring elements forming intersection points.

Die in Reihe angeordneten Ringelemente können teilweise oder vollständig von einem Führungsrohr umschlossen sein, wodurch sich höhere Druckkräfte und höhere Drehmomente problemlos übertragen lassen. Ein Führungsrohr oder dgl. ist auch dann erforderlich, wenn bei gebogener Welle Zugkräfte übertragen werden sollen.The ring elements arranged in series can be partially or completely enclosed by a guide tube, as a result of which higher compressive forces and higher torques can be transmitted without problems. A guide tube or the like is also required if tensile forces are to be transmitted when the shaft is bent.

Zur Verbindung der flexiblen Welle mit einer Antriebswelle oder einer Abtriebswelle besitzt diese an ihren Anschlußstücken jeweils stirnseitig befindliche Kupplungsstücke.To connect the flexible shaft to an input shaft or an output shaft, the latter has coupling pieces located on the end faces of each of its connecting pieces.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is explained in more detail below with reference to an embodiment shown in the drawing.

Es zeigen:

Figur 1
die Seitenansicht einer flexiblen Welle,
Figur 2
den Schnitt A-A gemäß Figur 1 und
Figur 3
die perspektivische Ansicht der in Figur 1 dargestellten flexiblen Welle.
Show it:
Figure 1
the side view of a flexible shaft,
Figure 2
the section AA according to Figure 1 and
Figure 3
the perspective view of the flexible shaft shown in Figure 1.

Die in Figur 1 dargestellte flexible Welle besitzt an ihren beiden Enden Anschlußelemente 1, 2, die über eine Reihe von Ringelementen 3 miteinander verbunden sind. Aufeinanderfolgende Ringelemente 3 sind jeweils um 90o zueinander verdreht angeordnet und sind über Kreuzungspunkte 4 einstückig miteinander verbunden. Die von den Ringelementen 3 umschlossenen Ringebenen 5 verlaufen durch die Mittelachse 6 der gerade ausgerichteten flexiblen Welle.The flexible shaft shown in FIG. 1 has at its two ends connection elements 1, 2 which are connected to one another via a series of ring elements 3. Successive ring elements 3 are arranged at 90 o to each other and rotated integrally connected to each other through junction points. 4 The ring planes 5 enclosed by the ring elements 3 run through the central axis 6 of the just-aligned flexible shaft.

Die flexible Welle ist einstückig aus Kunststoff im Spritzgießverfahren hergestellt, wobei je nach Anforderungen und Anwendungsgebiet ein entsprechend elastischer oder härterer Kunststoff verwendet werden kann. Um eine kraftschlüssige Verbindung mit hier nicht dargestellten Antriebswellen und Abtriebswellen herstellen zu können, besitzt die flexible Welle an den Anschlußelementen 1, 2 stirnseitig angeordnete Kupplungsstücke 7, 8, die so profiliert sind, daß eine Drehmomentübertragung und auch eine Übertragung von Druck- und Zugkräften möglich ist.The flexible shaft is made in one piece from plastic using the injection molding process, and depending on the requirements and field of application, a correspondingly elastic or harder plastic can be used. In order to be able to establish a positive connection with drive shafts and output shafts (not shown here), the flexible shaft on the connection elements 1, 2 has coupling pieces 7, 8 arranged on the end face, which are profiled in such a way that a torque transmission and also a transmission of compressive and tensile forces are possible is.

Der Schnitt A-A ist in Figur 2 vergrößert dargestellt. Die hier sichtbaren Ringelemente sind mit den Bezugszahlen 31, 32 bezeichnet.The section A-A is shown enlarged in Figure 2. The ring elements visible here are designated by the reference numbers 31, 32.

In Figur 3 ist die flexible Welle im Bereich der Ringelemente 3 von einem Führungsrohr 9 umschlossen, welches hier mit unterbrochenen Linien angedeutet ist.In FIG. 3, the flexible shaft is enclosed in the area of the ring elements 3 by a guide tube 9, which is indicated here by broken lines.

Claims (7)

Flexible Welle für Spielzeugmodelle zur Drehmomentübertragung und zur Übertragung von Zug- und Druckkräften, die an ihren beiden Enden Anschlußelemente hat, die mit Antriebs- und Abtriebswellen verbindbar sind, dadurch gekennzeichnet, daß die Anschlußelemente (1,2) über eine Vielzahl von in Reihe angeordneten, starr verbundenen Ringelementen (3) aus Kunststoff flexibel verbunden sind.Flexible shaft for toy models for torque transmission and for the transmission of tensile and compressive forces, which has connection elements at both ends which can be connected to input and output shafts, characterized in that the connection elements (1, 2) are arranged in series via a plurality , rigidly connected ring elements (3) made of plastic are flexibly connected. Flexible Welle nach Anspruch 1, dadurch gekennzeichnet, daß aufeinanderfolgende Ringelemente (3) um 90o zueinander verdreht angeordnet sind.Flexible shaft according to claim 1, characterized in that successive ring elements (3) are arranged rotated by 90 o with respect to one another. Flexible Welle nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß bei gerade ausgerichteter Welle deren Mittelachse (6) und die von den einzelnen Ringelementen (3) umschlossenen Ringebenen (5) gleichgerichtet verlaufen.Flexible shaft according to one of claims 1 or 2, characterized in that, when the shaft is aligned, its central axis (6) and the ring planes (5) enclosed by the individual ring elements (3) run in the same direction. Flexible Welle nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ringelemente (3) am Übergang zum benachbarten Ringelement einen Kreuzungspunkt (4) bilden.Flexible shaft according to one of the preceding claims, characterized in that the ring elements (3) form a crossing point (4) at the transition to the adjacent ring element. Flexible Welle nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Anschlußelemente (1) zusammen mit den Ringelementen (3) einstückig im Spritzgußverfahren aus Kunststoff hergestellt sind.Flexible shaft according to one of the preceding claims, characterized in that that the connection elements (1) together with the ring elements (3) are made in one piece by injection molding from plastic. Flexible Welle nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die in Reihe angeordneten Ringelemente (3) teilweise oder vollständig von einem Führungsrohr (9) umschlossen sind.Flexible shaft according to one of the preceding claims, characterized in that the ring elements (3) arranged in series are partially or completely enclosed by a guide tube (9). Flexible Welle nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Anschlußelemente (1,2) gerade Wellenabschnitte sind, die an ihren freien Stirnseiten jeweils ein Kupplungsstück (7,8) haben.Flexible shaft according to one of the preceding claims, characterized in that the connecting elements (1, 2) are straight shaft sections which each have a coupling piece (7, 8) on their free end faces.
EP93102031A 1992-03-13 1993-02-10 Flexible shaft for toy models Expired - Lifetime EP0560068B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4208018 1992-03-13
DE4208018A DE4208018A1 (en) 1992-03-13 1992-03-13 FLEXIBLE SHAFT FOR TOY MODELS

Publications (2)

Publication Number Publication Date
EP0560068A1 true EP0560068A1 (en) 1993-09-15
EP0560068B1 EP0560068B1 (en) 1995-08-09

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EP93102031A Expired - Lifetime EP0560068B1 (en) 1992-03-13 1993-02-10 Flexible shaft for toy models

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EP (1) EP0560068B1 (en)
AT (1) ATE126082T1 (en)
DE (2) DE4208018A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU627806B2 (en) * 1988-11-14 1992-09-03 Henkel Kommanditgesellschaft Auf Aktien Precipitant or flocculant for treatment of waste water and process involving their use
US11027813B2 (en) 2019-03-11 2021-06-08 Rhodan Marine Systems Of Florida, Llc Stiffening shafts for marine environments

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170620A1 (en) * 1984-07-11 1986-02-05 Interlego AG Control device for models, especially toy construction vehicles
EP0511501A1 (en) * 1991-04-30 1992-11-04 fischerwerke Artur Fischer GmbH &amp; Co. KG Device for power transmission in construction toys

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170620A1 (en) * 1984-07-11 1986-02-05 Interlego AG Control device for models, especially toy construction vehicles
EP0511501A1 (en) * 1991-04-30 1992-11-04 fischerwerke Artur Fischer GmbH &amp; Co. KG Device for power transmission in construction toys

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU627806B2 (en) * 1988-11-14 1992-09-03 Henkel Kommanditgesellschaft Auf Aktien Precipitant or flocculant for treatment of waste water and process involving their use
US11027813B2 (en) 2019-03-11 2021-06-08 Rhodan Marine Systems Of Florida, Llc Stiffening shafts for marine environments
US11827328B2 (en) 2019-03-11 2023-11-28 Rhodan Marine Systems Of Florida, Llc Stiffening shafts for marine environments

Also Published As

Publication number Publication date
DE4208018A1 (en) 1993-09-16
ATE126082T1 (en) 1995-08-15
EP0560068B1 (en) 1995-08-09
DE59300436D1 (en) 1995-09-14

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