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WO1989012759A1 - Fibre-reinforced plastic push or traction rod - Google Patents

Fibre-reinforced plastic push or traction rod Download PDF

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Publication number
WO1989012759A1
WO1989012759A1 PCT/DE1989/000129 DE8900129W WO8912759A1 WO 1989012759 A1 WO1989012759 A1 WO 1989012759A1 DE 8900129 W DE8900129 W DE 8900129W WO 8912759 A1 WO8912759 A1 WO 8912759A1
Authority
WO
WIPO (PCT)
Prior art keywords
recesses
plastic material
threads
pull rod
push
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.)
Ceased
Application number
PCT/DE1989/000129
Other languages
German (de)
French (fr)
Inventor
Hans-Günther Christopher
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO1989012759A1 publication Critical patent/WO1989012759A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • F16C3/026—Shafts made of fibre reinforced resin
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2352/00—Apparatus for drilling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/42—Driving mechanisms
    • H01H2033/426—Details concerning the connection of the isolating driving rod to a metallic part

Definitions

  • the invention relates to a fiber-reinforced pressure or pull rod made of plastic material with frontally arranged 5 conical fitting bodies for pressure and traction transmission, with formed from fibers of filaments in transversely to the rod • extending grooves of the valve body axis defined form-locking fest ⁇ and are soaked in the hardenable plastic material. 10
  • a method for producing such a fiber-reinforced push or pull rod is known as known, in which the threads formed from the fibers are oriented parallel to the rod axis and thus have the shortest possible length between the valve bodies.
  • the known method also enables the threads to be arranged at a certain angle to the axis of the rod, in order to additionally favorably influence the bending properties of the rod or to transmit rotational movements of the rod.
  • the high compressive or tensile load of the push and / or pull rod produced according to the known method is essentially made possible by the form-fitting fixing of the threads in the grooves running transversely to the rod axis, the form-fitting fixing by a wire, a Strand or another binding organ absorbing 25 flexible tensile forces is effected.
  • the plastic material and / or the threads in the hardened plastic material can be loosened in a rotationally movable manner without changing the tensile or compressive strength, despite the known positive locking of the valve body.
  • a fiber-reinforced push or pull rod of the type mentioned at the outset is one according to the invention Torque-definable fixing of the threads and / or the plastic material in recesses of the groove webs delimiting the grooves is provided.
  • the threads can be introduced into the recesses of the groove webs delimiting the grooves during the course of the manufacture in the form of positive locking in the grooves and thus bring about the torque locking.
  • this material has flowed into undercuts or notches or other recesses in the groove webs, so that after hardening there is a torque-locking anchoring of the rod on the valve bodies. Both measures can also be used in combination.
  • the recesses are advantageously arranged evenly distributed over the circumference of the groove webs, which on the one hand enables easy manufacture of the fitting body and on the other hand forces a uniform distribution of the threads in each thread layer within the rod.
  • each groove web can guide the threads directly above them at a predetermined angle to the bar axis.
  • angles up to + 45 * have proven to be advantageous.
  • the dimensional accuracy of the push or pull rod according to the invention with respect to its length can advantageously be ensured by at least one of the thread layers - as known per se from E-PS 0 087 384 - oriented parallel to the rod axis. Has threads.
  • a push or pull rod which is universally suitable for pressure and tensile force transmission and additionally for torque transmission in any direction of rotation is obtained if, in an embodiment of the inventive concept, a sequence of different angles of the recesses in the groove webs of each fitting body is applied.
  • Figure 1 shows schematically in a section a fiber-reinforced push or pull rod made of plastic material according to the invention.
  • Figure 2 shows as a detail from Figure 1 a fitting body with grooves for positive locking and with recesses for torque locking locking of the threads.
  • FIGS. 3 and 4 each show a partial perspective view of a groove web from FIG. 2.
  • the push or pull rod 1 shown in FIG. 1 is hollow-cylindrical and is connected to conical fitting bodies 4 on its end faces 2, 3.
  • threads 5 are oriented essentially in parallel to the rod axis in a plurality of layers, which are positively fixed in grooves 6 of the armature body which are transverse to the rod axis by 4.
  • the threads 5 are impregnated with the hardenable plastic material 1 a and together with the fitting body 4 form a composite body.
  • FIG. 2 shows, as a detail from FIG. 1, an enlarged conical fitting body 4, which shows the grooves 6 and the groove webs 7 delimiting them.
  • the groove webs 7 have recesses 8, 9, 10, which are oriented at different angles with respect to the rod axis and are arranged distributed uniformly over the circumference of the groove webs 7.
  • the recesses 8, 9 and 10 of the groove webs 7 serve to receive the threads and / or the plastic material in order to lock the threads 5 and thus the rod 1 with respect to the torque
  • Fix body 4 The recesses are visible 8 in the groove 7 with the smallest diameter parallel to
  • Rod axis oriented, while the recesses 9 extend at an angle of + 45 * and the recesses 10 at an angle of - 45 * with respect to the rod axis. It is thus possible to orient each thread layer with respect to its inner or outer neighboring layer at a certain, but also arbitrarily selectable angle in the course of the rod.
  • FIGS. 3 and 4 show sections of perspective representations of groove webs 7, FIG. 3 showing the groove web 7 of the smallest diameter and FIG. 4 the groove web 7 following it with a somewhat larger diameter.
  • the recesses 8, 9, which are evenly distributed over the circumference of the groove webs 7, are only shown in part.
  • groove flanks i.e. H. Provide recesses on the groove base or on the side walls of the groove webs, into which plastic material can penetrate before hardening and in which, after hardening, the plastic material is torque-locked to the fitting body.
  • the illustrated embodiment of the invention is particularly suitable for use as a propeller shaft for motor vehicles or as a drill pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Ocean & Marine Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

A plastic rod capable of withstanding high compressive or tensile stresses can also transmit torque. Fibres (5) are embedded in plastic material (1a), are interlocked in grooves (6) running transversely to the axis of the rod and are secured by torsional interlocking in recesses (8, 9, 10) of the ridges (7) which delimit the grooves (6). The strength and torque-transmitting capacity of the push or traction rod make it particularly suitable for cardan shafts in motor vehicles.

Description

1 Faserverstärkte Druck- oder Zugstange aus Kunststoffmaterial 1 fiber-reinforced push or pull rod made of plastic material

Die Erfindung bezieht sich auf eine faserverstärkte Druck- oder Zugstange aus Kunststoffmaterial mit stirnseitig angeordneten 5 konischen Armaturkörpern zur Druck- und Zugkraftübertragung, , mit aus Fasern gebildeten Fäden, die in transversal zur Stangen- • achse verlaufenden Nuten der Armaturkörper formschlüssig fest¬ gelegt und mit dem aushärtbaren Kunststoffmaterial getränkt sind. 10The invention relates to a fiber-reinforced pressure or pull rod made of plastic material with frontally arranged 5 conical fitting bodies for pressure and traction transmission, with formed from fibers of filaments in transversely to the rod • extending grooves of the valve body axis defined form-locking fest¬ and are soaked in the hardenable plastic material. 10

Aus der E-PS 0 087 384 geht ein Verfahren zur Herstellung einer solchen faserverstärkten Druck- oder Zugstange als bekannt hervor, bei der die aus den Fasern gebildeten Fäden parallel zur Stangenachse orientiert sind und damit die kürzest ögliche 15 Länge zwischen den Armaturkörpern aufweisen. Das bekannte Ver¬ fahren ermöglicht auch eine unter einem bestimmten Winkel zur Stangenachse orientierte Anordnung der Fäden, um zusätzlich die Biegeeigenschaften der Stange günstig zu beeinflussen oder um Drehbewegungen der Stange zu übertragen. Die hohe Druck- oder 20 Zugbelastung der nach dem bekannten Verfahren hergestellten Druck- und/oder Zugstange wird im wesentlich durch die form¬ schlüssige Festlegung der Fäden in den transversal zur Stangen¬ achse verlaufenden Nuten ermöglicht, wobei die formschlüssige Festlegung durch einen Draht, eine Litze oder ein anderes, 25 flexible Zugkräfte aufnehmendes Bindeorgan bewirkt wird.From E-PS 0 087 384 a method for producing such a fiber-reinforced push or pull rod is known as known, in which the threads formed from the fibers are oriented parallel to the rod axis and thus have the shortest possible length between the valve bodies. The known method also enables the threads to be arranged at a certain angle to the axis of the rod, in order to additionally favorably influence the bending properties of the rod or to transmit rotational movements of the rod. The high compressive or tensile load of the push and / or pull rod produced according to the known method is essentially made possible by the form-fitting fixing of the threads in the grooves running transversely to the rod axis, the form-fitting fixing by a wire, a Strand or another binding organ absorbing 25 flexible tensile forces is effected.

Bei der Übertragung von Drehkräften können sich trotz der be¬ kannten formschlüssigen Festlegung der Armaturkörper das Kunst¬ stoffmaterial und/oder die Fäden im ausgehärteten Kunst- 30 Stoffmaterial ohne Änderung der Zug- bzw. Druckkraftbelastbar¬ keit drehbeweglich lösen. Für Anwendungen der bekannten Druck-oder Zugstange, bei denen es außer einer sicheren Druck- und Zugkraftübertragung auch auf eine insbesondere spielfreie Drehkraftübertragung ankommt, wie z.B. bei Kardanwellen von 35 Kraftfahrzeugen, ist bei einer faserverstärkten Druck- oder Zugstange der eingangs genannten Art erfindungsgemäß eine drehmo entenschlüssige Festlegung der Fäden und/oder des Kunst¬ stoffmaterials in Ausnehmungen der die Nuten begrenzenden Nut¬ stege vorgesehen.In the transmission of rotational forces, the plastic material and / or the threads in the hardened plastic material can be loosened in a rotationally movable manner without changing the tensile or compressive strength, despite the known positive locking of the valve body. For applications of the known push or pull rod, in which, in addition to a secure push and pull force transmission, a particularly play-free torque transmission is also important, such as in cardan shafts of 35 motor vehicles, a fiber-reinforced push or pull rod of the type mentioned at the outset is one according to the invention Torque-definable fixing of the threads and / or the plastic material in recesses of the groove webs delimiting the grooves is provided.

Durch Anwendung der Erfindung können die Fäden im Verlauf der Fertigung bei der formschlüssigen Festlegung in den Nuten gleichzeitig in die Ausnehmungen der die Nuten begrenzenden Nutstege eingebracht werden und damit die Drehmomentenschlüssig- keit bewirken. Es ist aber auch möglich, daß vor dem Aushärten des die Fäden tränkenden Kunststoffmaterials dieses Material in Hinterschneidungen oder Kerben oder sonstigen Ausnehmungen in den Nutstegen eingeflossen ist, so daß sich nach dem Aushärten eine drehmomentenschlüssige Verankerung der Stange an den Armaturkörpern ergibt. Beide Maßnahmen können auch in Kombi- nation Anwendung finden.By applying the invention, the threads can be introduced into the recesses of the groove webs delimiting the grooves during the course of the manufacture in the form of positive locking in the grooves and thus bring about the torque locking. However, it is also possible that before the hardening of the plastic material soaking the threads, this material has flowed into undercuts or notches or other recesses in the groove webs, so that after hardening there is a torque-locking anchoring of the rod on the valve bodies. Both measures can also be used in combination.

Vorteilhaft sind die Ausnehmungen gleichmäßig über den Umfang der Nutstege verteilt angeordnet, was einerseits eine leichte Fertigung der Armaturkörper ermöglicht und andererseits eine gleichmäßige Verteilung der Fäden in einer jeden Fadenschicht innerhalb der Stange erzwingt.The recesses are advantageously arranged evenly distributed over the circumference of the groove webs, which on the one hand enables easy manufacture of the fitting body and on the other hand forces a uniform distribution of the threads in each thread layer within the rod.

Dabei können die Ausnehmungen jedes Nutsteges die unmittelbar darüber geführten Fäden unter einem vorgegebenen Winkel zur Staπgenachse führen. Hierbei haben sich Winkel bis zu + 45* als vorteilhaft erwiesen. Die Maßhaltigkeit der erfindungsge¬ mäßen Druck- oder Zugstange in bezug auf ihre Länge kann vorteil¬ haft dadurch gewährleistet sein, das mindestens eine der Fadenlag - wie an sich aus der E-PS 0 087 384 bekannt - parallel zur Stangenachse orientierte. Fäden hat.The recesses of each groove web can guide the threads directly above them at a predetermined angle to the bar axis. Here angles up to + 45 * have proven to be advantageous. The dimensional accuracy of the push or pull rod according to the invention with respect to its length can advantageously be ensured by at least one of the thread layers - as known per se from E-PS 0 087 384 - oriented parallel to the rod axis. Has threads.

Eine universell für Druck- und Zugkraftübertragung und zusätz¬ lich für Drehmomentenübertragung in jeder Drehrichtung geeignete Druck- oder Zugstange ergibt sich, wenn in Ausgestaltung des Erfindungsgedankens eine Folge unterschiedlicher Winkel der Ausnehmungen in den Nutstegen eines jeden Armaturkörpers angewendet wird.A push or pull rod which is universally suitable for pressure and tensile force transmission and additionally for torque transmission in any direction of rotation is obtained if, in an embodiment of the inventive concept, a sequence of different angles of the recesses in the groove webs of each fitting body is applied.

Anhand der Zeichnung ist ein Ausführungsbeispiel einer faser¬ verstärkten Druck- oder Zugstange aus Kunststoffmaterial nach der Erfindung beschrieben und die Wirkungsweise erläutert.An exemplary embodiment of a fiber-reinforced push or pull rod made of plastic material according to the invention is described with reference to the drawing and the mode of operation is explained.

Figur 1 zeigt schematisch in einem Schnitt eine faserverstärkte Druck- oder Zugstange aus Kunst¬ stoffmaterial nach der Erfindung. Figur 2 zeigt als Einzelheit aus Figur 1 einen Armaturkö per mit Nuten zur formschlüssigen Festlegung und mit Ausnehmungen zur drehmomentenschlüssigen Festlegung der Fäden. Figuren 3 und 4 zeigen ausschnittsweise in perspektivischen Ansichten je einen Nutsteg aus Figur 2.Figure 1 shows schematically in a section a fiber-reinforced push or pull rod made of plastic material according to the invention. Figure 2 shows as a detail from Figure 1 a fitting body with grooves for positive locking and with recesses for torque locking locking of the threads. FIGS. 3 and 4 each show a partial perspective view of a groove web from FIG. 2.

Die in der Figur 1 dargestellte Druck- oder Zugstange 1 ist hohlzylindrisch ausgebildet und an ihren Stirnseiten 2,3 mit konischen Armaturkörpern 4 verbunden. Im Kunststoffmaterial la der Stange 1 sind im wesentlichen parallel verlaufend zur Stangenachse Fäden 5 in mehreren Schichten orientiert, die in transversal zur Stangenachse verlaufenden Nuten 6 der Armaturkör per 4 formschlüssig festgelegt sind. Die Fäden 5 sind mit dem aushärtbaren Kunststoffmaterial la getränkt und bilden gemeinsam mit dem Armaturkörper 4 einen Verbundkörper.The push or pull rod 1 shown in FIG. 1 is hollow-cylindrical and is connected to conical fitting bodies 4 on its end faces 2, 3. In the plastic material la of the rod 1, threads 5 are oriented essentially in parallel to the rod axis in a plurality of layers, which are positively fixed in grooves 6 of the armature body which are transverse to the rod axis by 4. The threads 5 are impregnated with the hardenable plastic material 1 a and together with the fitting body 4 form a composite body.

Die Figur 2 zeigt als Einzelheit aus Figur 1 in vergrößertem Maßstab einen konischen Armaturkörper 4, der die Nuten 6 und die sie begrenzenden Nutstege 7 zeigt. Die Nutstege 7 haben Ausnehmungen 8, 9, 10, die unter unterschiedlichen Winkeln bezüglich der Stangenachse orientiert sind und gleichmäßig über den Umfang der Nutstege 7 verteilt angeordnet sind. Die Aus¬ nehmungen 8, 9 und 10 der Nutstege 7 dienen zur Aufnahme der Fäden und/oder des Kunststoffmaterials, um die Fäden 5 und damit die Stange 1 drehmomentenschlüssig in bezug auf denFIG. 2 shows, as a detail from FIG. 1, an enlarged conical fitting body 4, which shows the grooves 6 and the groove webs 7 delimiting them. The groove webs 7 have recesses 8, 9, 10, which are oriented at different angles with respect to the rod axis and are arranged distributed uniformly over the circumference of the groove webs 7. The recesses 8, 9 and 10 of the groove webs 7 serve to receive the threads and / or the plastic material in order to lock the threads 5 and thus the rod 1 with respect to the torque

Armaturkörper 4 festzulegen. Ersichtlich sind die Ausnehmungen 8 im Nutsteg 7 mit dem kleinsten Durchmesser parallel zurFix body 4. The recesses are visible 8 in the groove 7 with the smallest diameter parallel to

Stangenachse orientiert, während die Ausnehmungen 9 unter einem Winkel von + 45* und die Ausnehmungen 10 unter einem Winkel von - 45* bezüglich der Stangenachse verlaufen. Es ist damit möglich, jede Fadenschicht in bezug auf ihre innere oder äußere Nachbarschicht unter einem bestimmten, aber auch beliebig wähl¬ baren Winkel im Stangenverlauf zu orientieren.Rod axis oriented, while the recesses 9 extend at an angle of + 45 * and the recesses 10 at an angle of - 45 * with respect to the rod axis. It is thus possible to orient each thread layer with respect to its inner or outer neighboring layer at a certain, but also arbitrarily selectable angle in the course of the rod.

Die Figuren 3 und 4 zeigen ausschnittsweise perspektivische Darstellungen von Nutstegen 7, wobei die Figur 3 den Nutsteg 7 kleinsten Durchmessers und die Figur 4 den ihm folgenden Nutsteg 7 mit etwas größerem Durchmesser zeigt. Der Einfachheit halber sind dabei die Ausnehmungen 8,9, die gleichmäßig über den Umfang der Nutstege 7 verteilt angeordnet sind, nur zum Teil dargestellt.FIGS. 3 and 4 show sections of perspective representations of groove webs 7, FIG. 3 showing the groove web 7 of the smallest diameter and FIG. 4 the groove web 7 following it with a somewhat larger diameter. For the sake of simplicity, the recesses 8, 9, which are evenly distributed over the circumference of the groove webs 7, are only shown in part.

Es ist auch möglich, an den Nutflanken, d. h. am Nutgrund oder an den Seitenwänden der Nutstege Ausnehmungen vorzusehen, in die Kunststoffmaterial vor dem Aushärten eindringen kann und in denen nach dem Aushärten das Kunststoffmaterial drehmomenten- schlüssig am Armaturkörper festgelegt ist.It is also possible to use the groove flanks, i.e. H. Provide recesses on the groove base or on the side walls of the groove webs, into which plastic material can penetrate before hardening and in which, after hardening, the plastic material is torque-locked to the fitting body.

Das dargestellte Ausführungsbeispiel der Erfindung ist be¬ sonders geeignet, als Kardanwelle für Kraftfahrzeuge oder als Bohrgestänge Anwendung zu finden. The illustrated embodiment of the invention is particularly suitable for use as a propeller shaft for motor vehicles or as a drill pipe.

Claims

Patentansprüche Claims 1. Faserverstärkte Druck- oder Zugstange (1) aus Kunststoff- material (la) mit stirnseitig angeordneten konischen Armatur¬ körpern (4) zur Druckund Zugkraftübertragung, mit aus Fasern gebildeten Fäden (5), die in transversal zur Stangenachse verlaufenden Nuten (6) der Armaturkörper (4) formschlüssig festgelegt und mit dem aushärtbaren Kunststoffmaterial (la) getränkt sind, g e k e n n z e i c h n e t d u r c h eine drehmomentenschlüssige Festlegung der Fäden (5) und/oder des Kunststoffmaterials (la) in Ausnehmungen (8,9,10) der die Nuten begrenzenden Nutstege (7).1. Fiber-reinforced push or pull rod (1) made of plastic material (la) with conical armature bodies (4) arranged on the end face for pressure and tensile force transmission, with threads (5) formed from fibers, the grooves (6) running transversely to the rod axis. the fitting body (4) is positively fixed and impregnated with the hardenable plastic material (la), characterized by a torque-locking fixing of the threads (5) and / or the plastic material (la) in recesses (8, 9, 10) of the groove webs delimiting the grooves ( 7). 2. Faserverstärkte Druck- oder Zugstange nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Ausnehmungen (8,9,10) gleichmäßig über den Umfang der Nutstege (7) verteilt angeordnet sind.2. Fiber-reinforced push or pull rod according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the recesses (8,9,10) are evenly distributed over the circumference of the groove webs (7). 3. Faserverstärkte Druck- oder Zugstange nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , daß die Ausnehmungen (8,9,10) jedes Nutsteges (7) die unmittelba darüber geführten Fäden (5) unter einem vorgegebenen Winkel zur Stangenachse führen.3. Fiber-reinforced push or pull rod according to claim 1 or 2, d a d u r c h g e k e n n z e i c h n e t that the recesses (8,9,10) of each grooved web (7) lead the threads (5) immediately above it at a predetermined angle to the rod axis. 4. Faserverstärkte Druck- oder Zugstange nach einem der Ansprüche 1 bis 3, g e k e n n z e i c h n e t d u r c h eine Folge unterschiedlicher Winkel der Ausnehmungen (8,9,10) in den Nutstegen (7) eines jeden Armaturkörpers (4). 4. Fiber-reinforced push or pull rod according to one of claims 1 to 3, g e k e n n z e i c h n e t d u r c h a sequence of different angles of the recesses (8,9,10) in the groove webs (7) of each fitting body (4).
PCT/DE1989/000129 1988-06-23 1989-03-01 Fibre-reinforced plastic push or traction rod Ceased WO1989012759A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3821549.7 1988-06-23
DE3821549A DE3821549A1 (en) 1988-06-23 1988-06-23 FIBER-REINFORCED PRESSURE OR TIE ROD MADE OF PLASTIC MATERIAL

Publications (1)

Publication Number Publication Date
WO1989012759A1 true WO1989012759A1 (en) 1989-12-28

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WO (1) WO1989012759A1 (en)

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US20240110592A1 (en) * 2022-09-30 2024-04-04 Goodrich Corporation Flexible composite drive shaft

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EP1900946A3 (en) * 2006-09-13 2009-06-03 Emerson Power Transmission Manufacturing L.P. Flange for filament wound composite shaft
US7682256B2 (en) 2006-09-13 2010-03-23 Kop-Flex Inc. Flange design for filament wound composite shaft
US20240110592A1 (en) * 2022-09-30 2024-04-04 Goodrich Corporation Flexible composite drive shaft

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