DE10356522B3 - Bicycle steering mechanism using thread at upper and/or lower end of fork shaft for facilitating its rotation and acting as fork shaft bearing - Google Patents

Bicycle steering mechanism using thread at upper and/or lower end of fork shaft for facilitating its rotation and acting as fork shaft bearing Download PDF

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Publication number
DE10356522B3
DE10356522B3 DE2003156522 DE10356522A DE10356522B3 DE 10356522 B3 DE10356522 B3 DE 10356522B3 DE 2003156522 DE2003156522 DE 2003156522 DE 10356522 A DE10356522 A DE 10356522A DE 10356522 B3 DE10356522 B3 DE 10356522B3
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Germany
Prior art keywords
thread
fork shaft
steering mechanism
acting
facilitating
Prior art date
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Expired - Fee Related
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DE2003156522
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German (de)
Inventor
Theodor Christ
Pierre Marschall
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Individual
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Individual
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Priority to DE2003156522 priority Critical patent/DE10356522B3/en
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Publication of DE10356522B3 publication Critical patent/DE10356522B3/en
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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
    • B62K21/00—Steering devices
    • B62K21/06—Bearings specially adapted for steering heads
    • 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
    • B62K21/00—Steering devices
    • B62K21/12—Handlebars; Handlebar stems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

The bicycle steering mechanism has the fork shaft (5) provided as a threaded spindle which is moved within a control sleeve (7) via a thread at its upper and/or lower end, simultaneously acting as the bearing for the fork shaft. The fork shaft can have a thread at its lower end and a sliding bearing at its upper end.

Description

Aus dem Stand der Technik sind Gabelschaftlagerungen mittels Wälzlager ( EP 0541070 A1 ) oder Gleitlagerungen ( DE 1078464 B ) bekannt.From the prior art fork steerer bearings by rolling bearings ( EP 0541070 A1 ) or plain bearings ( DE 1078464 B ) known.

Die Erfindung betrifft eine Zweiradlenkung mittels Gewinde, bei der die Lagerung und Drehbewegung durch ein Gewinde im Steuerrohr erfolgt. Hierbei ist der Gabelschaft mit einem Spindelgewinde im unteren oder auch im oberen Teil oder im unteren und oberen Teil versehen. Das Steuerrohr ist mit einem Muttergewinde im unteren oder auch im oberen Teil oder im unteren und oberen Teil versehen. Bei der Ausführung mit nur einem Mutter- und Spindelgewinde ist die Gegenseite als Gleitlager ausgebildet. Dabei übernimmt der Gabelschaft die Funktion der Achse und das Steuerrohr die Funktion einer Lagerschale.The The invention relates to a two-wheel steering by means of thread, in which the bearing and rotary movement is done by a thread in the head tube. in this connection is the steerer with a spindle thread in the bottom or too provided in the upper part or in the lower and upper part. The head tube is with a nut thread in the lower or in the upper part or in the lower and upper part provided. In the execution with only one nut and spindle thread is the opposite side as plain bearings educated. It takes over the steerer the function of the axle and the head tube the function a bearing shell.

Im Vergleich zu den zur Zeit verwendeten Lagerungen, bei Zweiradlenkungen, hat die von uns erfundene Lagerung folgende Vorteile:

  • • Sie ermöglicht eine schnellere Montage und Demontage der Gabel im Steuerrohr sowie eine Gewichtsreduzierung durch Wegfall von Kugellagern.
  • • Sie ist wartungsfreundlicher und verschleißärmer.
  • • Die Anzahl der Einzelkomponenten ist geringer.
Compared to the bearings currently used for two-wheel steering, the bearing we invented has the following advantages:
  • • It allows faster assembly and disassembly of the fork in the head tube and weight reduction by eliminating ball bearings.
  • • It is easier to maintain and less prone to wear.
  • • The number of individual components is lower.

Beispiele der Ausführungen sind in den Zeichnungen dargestellt und werden im folgenden näher beschrieben.Examples the designs are shown in the drawings and will be described in more detail below.

Es zeigen:It demonstrate:

1: Gabelschaft im Steuerrohr mit Gewinde im unteren und oberen Teil. 1 : Steerer tube in the head tube with thread in the lower and upper part.

2: Gabelschaft im Steuerrohr mit Gewinde im unteren Teil, im oberen Teil ausgebildet als Gleitlager. 2 : Steerer tube in the steering tube with thread in the lower part, formed in the upper part as plain bearings.

3: Gabelschaft im Steuerrohr, Gewinde im oberen Teil, unterer Teil als Gleitlager ausgebildet. 3 : Steerer tube in the steering tube, thread in the upper part, lower part designed as plain bearing.

4, 5, 6: Zeigt die Möglichkeit, herkömmliche Zweiräder durch Büchsen nach 1, 2, 3 umzubauen. 4 . 5 . 6 : Reveals the possibility of conventional two-wheelers by rifles 1 . 2 . 3 rebuild.

Wie aus den von 1 bis 3 hervorgeht, besteht die Lagerung aus einem oberen und unteren Gewinde oder aus einem Gewinde bei dem die Gegenseite als Gleitlager ausgebildet ist (Position 5).As from the of 1 to 3 shows, the storage consists of an upper and lower thread or a thread in which the opposite side is designed as a sliding bearing (position 5).

Das Gewinde ermöglicht die radiale Lenkbewegung und funktioniert gleichzeitig als Axial- und Vertikallagerung. Es kann entweder direkt im Steuerrohr (Position 7) angebracht sein, oder mittels spezieller Buchsen (Position 6, 8) in das Steuerrohr integriert werden. Die Buchse dient gleichzeitig auch als Aufnahme für die Dichtungen (Position 1, 4).The Thread allows the radial steering movement and at the same time works as axial and vertical storage. It can either be directly in the head tube (position 7), or by means of special bushings (position 6, 8) are integrated in the head tube. The socket serves simultaneously also as a recording for the seals (position 1, 4).

Da die Lenkbewegung, sich im Fahrbetrieb in einem Drehwinkel von kleiner 90° bewegt, wird das Fahrgestell bedingt durch das Lenken mittels Gewinde im zehntel Bereich angehoben oder abgesenkt. Bei einer angenommenen Gewindesteigung von 1,5 mm, wäre die Hubbewegung 1/4 der Gewindesteigung, bei angenommenem Drehwinkel von max. 90° wäre der Hub 0,37 mm. Dieser Wert der Hubbewegung nimmt auf die Fahreigenschaften im Fahrbetrieb eines Zweirades keinen Einfluss. Alle weitern Rahmenteile, wie Oberrohr (Position 3) und Unterrohr (Position 2) benötigen keinen weiteren Umbau.There the steering movement, while driving in a rotation angle of less Moved 90 °, is the chassis due to the steering by means of thread in Tenth range raised or lowered. For an assumed Thread pitch of 1.5 mm, would be the stroke movement 1/4 of the thread pitch, assuming a rotation angle by Max. 90 ° would be the hub 0.37 mm. This value of the lifting movement takes on the driving characteristics while driving a two-wheeler no influence. All other frame parts, like top tube (position 3) and down tube (position 2) do not need any further conversion.

Claims (5)

Zweiradlenkung mittels Gewinde, dadurch gekennzeichnet, dass der Gabelschaft (5), ausgebildet als Spindelgewinde, im Steuerrohr (7) mittels eines Muttergewindes bewegt wird.Two-wheel steering by means of thread, characterized in that the steerer ( 5 ), formed as a spindle thread, in the head tube ( 7 ) is moved by means of a nut thread. Zweiradlenkung nach Anspruch 1, dadurch gekennzeichnet, dass der Gabelschaft im Steuerrohr mit einem Gewinde im oberen und unteren Teil ausgestattet ist.Two-wheel steering according to claim 1, characterized that the steerer tube in the head tube with a thread in the top and lower part is equipped. Zweiradlenkung nach Anspruch 1, dadurch gekennzeichnet, dass der Gabelschaft mit einem Gewinde im unteren Teil und einem Gleitlager im oberen Teil ausgestattet ist. Two-wheel steering according to claim 1, characterized that of the steerer with a thread in the lower part and a Slide bearing is equipped in the upper part. Zweiradlenkung nach Anspruch 1, dadurch gekennzeichnet, dass der Gabelschaft mit einem Gewinde im oberen Teil und einem Gleitlager im unteren Teil ausgestattet ist.Two-wheel steering according to claim 1, characterized that the steerer with a thread in the upper part and a Slide bearing is equipped in the lower part. Zweiradlenkung, wobei herkömmliche Zweiräder durch Büchsen mit den Merkmalen einer der Ansprüche 1–4 umbaubar sind.Zweiradlenkung, whereby conventional two-wheeled by cans can be converted with the features of any of claims 1-4.
DE2003156522 2003-12-03 2003-12-03 Bicycle steering mechanism using thread at upper and/or lower end of fork shaft for facilitating its rotation and acting as fork shaft bearing Expired - Fee Related DE10356522B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003156522 DE10356522B3 (en) 2003-12-03 2003-12-03 Bicycle steering mechanism using thread at upper and/or lower end of fork shaft for facilitating its rotation and acting as fork shaft bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003156522 DE10356522B3 (en) 2003-12-03 2003-12-03 Bicycle steering mechanism using thread at upper and/or lower end of fork shaft for facilitating its rotation and acting as fork shaft bearing

Publications (1)

Publication Number Publication Date
DE10356522B3 true DE10356522B3 (en) 2005-05-12

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Application Number Title Priority Date Filing Date
DE2003156522 Expired - Fee Related DE10356522B3 (en) 2003-12-03 2003-12-03 Bicycle steering mechanism using thread at upper and/or lower end of fork shaft for facilitating its rotation and acting as fork shaft bearing

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078464B (en) * 1955-10-04 1960-03-24 Zweirad Union Ag Slide ring bearings for the steering tube of bicycles and motorcycles
EP0541070A1 (en) * 1991-11-05 1993-05-12 Shimano Inc. Apparatus for rotatably fitting a fork stem in a head tube of a bicycle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078464B (en) * 1955-10-04 1960-03-24 Zweirad Union Ag Slide ring bearings for the steering tube of bicycles and motorcycles
EP0541070A1 (en) * 1991-11-05 1993-05-12 Shimano Inc. Apparatus for rotatably fitting a fork stem in a head tube of a bicycle

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