DE9004518U1 - Bicycle frame made of fiber composite material - Google Patents

Bicycle frame made of fiber composite material

Info

Publication number
DE9004518U1
DE9004518U1 DE9004518U DE9004518U DE9004518U1 DE 9004518 U1 DE9004518 U1 DE 9004518U1 DE 9004518 U DE9004518 U DE 9004518U DE 9004518 U DE9004518 U DE 9004518U DE 9004518 U1 DE9004518 U1 DE 9004518U1
Authority
DE
Germany
Prior art keywords
fiber composite
composite material
bicycle frame
frame made
tubes
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.)
Expired - Lifetime
Application number
DE9004518U
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE9004518U priority Critical patent/DE9004518U1/en
Publication of DE9004518U1 publication Critical patent/DE9004518U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/02—Cycle frames characterised by material or cross-section of frame members
    • B62K19/16—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly of plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/18—Joints between frame members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Description

I t I t

&igr; t &igr; &igr; t &igr;

Beschreibung
Fahrradrahmen aus Faserverbundwerkstoff Description
Bicycle frame made of fiber composite material

Die Erfindung bezieht sich auf einen Fahrradrahmen aus Faserverbundwerkstoff. Bis heute man im Wesentlichen zwei Arten von aus Faserverbundwerkstoff:The invention relates to a bicycle frame made of fiber composite material. To date, there are essentially two types of fiber composite material:

i.Dis Schalenbauweise; hier werden sämtl i -.he Rahmenkomponenten mittels eine; großen Formwerkzeugs in einem Arbeitsgang gefertigt. (Zeitschrift "&?<- rad" Ausgabe f2/S9 _eitel2) Patencschri^'-.en hierzu OS-24y51*lf GM-7*328O9.i.The shell construction; here all the frame components are manufactured in one operation using a large mold. (Magazine "&?<- rad" Issue 2/S9 _eitel2) Patent documents for this OS-24y51*lf GM-7*32809.

2.Die Rohrbeuweise; hier besteb^u zwar die Rohre aus Faserverbundwerkstoff, ie^och sind die Rohrverbindungen als Metallmuffe ausgeführ&tgr;. (Zeitschrift "Sportrad" Ausgabe 12/89 Seite 30) Patentschriften hierzu EP-0127553 A2 und DE-3408650 Ai .2.The pipe construction; here the pipes are made of fiber composite material, but the pipe connections are designed as metal sleeves. (Magazine "Sportrad" issue 12/89 page 30) Patent documents for this EP-0127553 A2 and DE-3408650 Ai.

Die Schalenbauweise bedingt durch die hohen Kosten für die Formwerkzeugherstellung große Serien. Der Nachteil der Rohrbauweise mit Metallmuffen ist die geringe Gestaltvngsfreiheit.The shell construction requires large series due to the high costs of mold production. The disadvantage of the pipe construction with metal sleeves is the limited freedom of design.

Auch die aus EP-OO79575 Bl bekannte Konstruktion ist für Faserverbundwerkstoffe wenig geeignet. Aufgabe der Erfindung ist es, einen Fahrradrahmen der eingangs erwähnten Art zu konstruieren. Für eine Kleinserienfertigung sollen die Herstellungskosten durch Verwendung vorgefertigter Rohre und kleiner, einfacher Formwerkzeuge, niedrig gehalten werden.The construction known from EP-OO79575 Bl is also not very suitable for fiber composite materials. The object of the invention is to construct a bicycle frame of the type mentioned at the beginning. For small-scale production, the manufacturing costs should be kept low by using prefabricated tubes and small, simple molds.

I II I

> I> I

1 ·1 ·

Zur Lösung dieser Aufgabe ist der Fahrradrahmen mit Rohren und Rohrverbindungen aus Faserverbund=· werkstoff hergestellt.To solve this problem, the bicycle frame is made with tubes and tube connections made of fiber composite material.

In der Zeichnung ist der Erfxndungsgegenstand in einem Ausführungsbeispiel dargestellt. Der Fahrradrahmen besteht aus Rohren (1), deren Jeweilig* Enden In sesftiv: &rgr; - fertigt« Formteile (2,3,4) eingeklebt sind. Die Formteile sind ein- oder mehrteilig ausgeführt und bestehen wie die Rohre aus einem Faserverbundwerkstoff, zum Beispiel Kohlefaser-EP.
Ausfallenden (5)» lagerschalen (6) und Gewinde büchsen (7) sind aus Metall und werden in die Rohre bzw. Formteile eingeklebt.The drawing shows the subject matter of the invention in an embodiment. The bicycle frame consists of tubes (1), the respective ends of which have molded parts (2,3,4) glued in . The molded parts are made of one or more parts and, like the tubes, consist of a fiber composite material, for example carbon fiber EP.
Dropouts (5)» bearing shells (6) and threaded bushings (7) are made of metal and are glued into the tubes or molded parts.

Die erfindungsgemäße Konstruktion des Fahrradrahmens erlaubt es, die Rahmengeometrie zu variieren ohne daß hierfür die Formwerkzeuge nennenswert geändert werden müssen. Dadurch wird die rationelle Fertigung einer Kleinserie möglich. Durch entsprechende Auslegung der Formteile kann der Luftwiderstand des Rahmens reduziert werden. Die Verwendung desselben Werkstoffs für Rohre und Formteile schafft mehr Gestaltungemöglichkeiten, sowie eine schöne Oberflächenstruktur*The inventive design of the bicycle frame allows the frame geometry to be varied without the molds having to be changed significantly. This makes it possible to produce a small series efficiently. By designing the molded parts accordingly, the air resistance of the frame can be reduced. Using the same material for tubes and molded parts creates more design options, as well as a beautiful surface structure*

Claims (1)

"** JL "■"**JL "■ SchutzanspruchClaim for protection Fahrradrahmen aus Fnserverbundwerks toff, dadurch gekennzeichnet , daß der Rahmen aus Hohrabschnitten aufgebaut und sowohl die Rohre als auch die Rohrverbindungen aus Faserverbundwerkstoff bestehen.Bicycle frame made of fiber composite material, characterized in that the frame is constructed from hollow sections and both the tubes and the tube connections are made of fiber composite material.
DE9004518U 1990-04-21 1990-04-21 Bicycle frame made of fiber composite material Expired - Lifetime DE9004518U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9004518U DE9004518U1 (en) 1990-04-21 1990-04-21 Bicycle frame made of fiber composite material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9004518U DE9004518U1 (en) 1990-04-21 1990-04-21 Bicycle frame made of fiber composite material

Publications (1)

Publication Number Publication Date
DE9004518U1 true DE9004518U1 (en) 1990-06-28

Family

ID=6853082

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9004518U Expired - Lifetime DE9004518U1 (en) 1990-04-21 1990-04-21 Bicycle frame made of fiber composite material

Country Status (1)

Country Link
DE (1) DE9004518U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203135A1 (en) * 1991-02-07 1992-08-13 Pierre Martin BICYCLE FRAME
EP0587927A1 (en) * 1992-09-15 1994-03-23 Nytex Composites Co., Ltd. Composite material bicycle frame and method for making same
DE19904545A1 (en) * 1999-02-04 2000-08-17 Fachhochschule Konstanz Inst F Tubular bicycle frame is assembled from tube using tough, reinforced nylon connectors, knurled mating surfaces and adhesive bonding, resulting in crash-resistant construction, inexpensively-tailored to individual user needs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203135A1 (en) * 1991-02-07 1992-08-13 Pierre Martin BICYCLE FRAME
EP0587927A1 (en) * 1992-09-15 1994-03-23 Nytex Composites Co., Ltd. Composite material bicycle frame and method for making same
DE19904545A1 (en) * 1999-02-04 2000-08-17 Fachhochschule Konstanz Inst F Tubular bicycle frame is assembled from tube using tough, reinforced nylon connectors, knurled mating surfaces and adhesive bonding, resulting in crash-resistant construction, inexpensively-tailored to individual user needs

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