DE9309690U1 - Pedal crank for bicycles - Google Patents
Pedal crank for bicyclesInfo
- Publication number
- DE9309690U1 DE9309690U1 DE9309690U DE9309690U DE9309690U1 DE 9309690 U1 DE9309690 U1 DE 9309690U1 DE 9309690 U DE9309690 U DE 9309690U DE 9309690 U DE9309690 U DE 9309690U DE 9309690 U1 DE9309690 U1 DE 9309690U1
- Authority
- DE
- Germany
- Prior art keywords
- pedal crank
- crank
- bore
- bearing
- cutout
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 description 3
- 230000001351 cycling effect Effects 0.000 description 1
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
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
- B62K19/34—Bottom brackets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Description
PATENTANWÄLTE · HEMMERICH · MÜLLER · GROSSE · POLLMElER-" VALENTIN · GIHSKE - 1 -PATENT ATTORNEYS · HEMMERICH · MÜLLER · GROSSE · POLLMELER-" VALENTIN · GIHSKE - 1 -
H Juni '&EEacgr;93H June '&EEacgr;93
:-sr 76 784 : - sr76 784
Johnson CHEN of No. 8, Chiu Chuang Rd., Hai Feng Li, Ching Shui Chen, Taichung Hsien, Taiwan, R. O. C.Johnson CHEN of No. 8, Chiu Chuang Rd., Hai Feng Li, Ching Shui Chen, Taichung Hsien, Taiwan, R. O. C.
Tretkurbel für FahrräderPedal crank for bicycles
Das Gebrauchsmuster bezieht sich auf eine Tretkurbel für Fahrräder mit schwenkbarem Hinterradgabellager, welches in einem Ausschnitt der Tretkurbel angeordnet ist.The utility model relates to a pedal crank for bicycles with a pivoting rear fork bearing, which is arranged in a cutout of the pedal crank.
Die Aufgabe der Erfindung gemäß Gebrauchsmuster besteht darin, ein schwenkbares Hinterradgabellager vorzusehen, das auf die Tretkurbel übertragene Stöße und Vibrationen vermindert. Die Lösung der Erfindung gemäß Gebrauchsmuster ist in den Schutzansprüchen angegeben.The object of the invention according to the utility model is to provide a pivoting rear fork bearing that reduces shocks and vibrations transmitted to the pedal crank. The solution of the invention according to the utility model is specified in the protection claims.
In den Zeichnungen ist:In the drawings:
Figur 1 eine perspektivische Ansicht einer TretkurbelFigure 1 is a perspective view of a crank
gemäß dem vorliegenden Gebrauchsmuster,according to the present utility model,
Figur 2 eine in Einzelteile auf gelöste, perspektivische Ansicht der Tretkurbel gemäß dem vorliegenden Gebrauchsmuster,Figure 2 is a perspective view of the pedal crank according to the present utility model, with individual parts removed,
Figur 3 eine Querschnittansicht der Tretkurbel gemäß dem vorliegenden Gebrauchsmuster, währendFigure 3 is a cross-sectional view of the crank according to the present utility model, while
Figur 4 eine Ansicht ist, welche die Funktionsweise der Tretkurbel darstellt.Figure 4 is a view illustrating the operation of the crank.
PATENTANWÄLTE · HEMMERICH · MÜLLER GROSSE · POLLMElER- VALENTIN · GIHSKE - 2 -PATENT ATTORNEYS · HEMMERICH · MÜLLER GROSSE · POLLMELER- VALENTIN · GIHSKE - 2 -
Auf die Zeichnungen Bezug nehmend, ist eine Tretkurbel 10 ein rohrförmiges Element mit einer darin gebildeten longitudinalen Durchgangsbohrung 12 und mit einem Ausschnitt 11, der in einem Teilstück einer Peripherie des rohrförmigen Elements angeordnet ist. Eine ringförmige Nut 121 ist in jedem Ende der Tretkurbel 10 vorgesehen. Ein Lager 13 ist von jeder Nut 121 aufgenommen. Ein Sitzrohr 15 und ein Abwärtsrohr 16 sind an der Tretkurbel 10 angeordnet.Referring to the drawings, a crank arm 10 is a tubular member having a longitudinal through-bore 12 formed therein and having a cutout 11 disposed in a portion of a periphery of the tubular member. An annular groove 121 is provided in each end of the crank arm 10. A bearing 13 is received in each groove 121. A seat tube 15 and a down tube 16 are disposed on the crank arm 10.
Ein Hinterradgabellager 20 ist ein rohrförmiges Element, welches eine longitudinale Durchgangsbohrung 21 aufweist und eine ringförmige Nut 22, die in jedem Ende der Durchgangsbohrung 21 vorgesehen ist. Ein Lager 23 ist in jeder Nut 22 des Hinterradgabellagers 20 angeordnet und zwei Hinterradgabeln 24 sind an einem äußeren Peripherieteilstück des Hinterradgabellagers 20 angeordnet.A rear fork bearing 20 is a tubular member having a longitudinal through hole 21 and an annular groove 22 provided in each end of the through hole 21. A bearing 23 is arranged in each groove 22 of the rear fork bearing 20, and two rear forks 24 are arranged at an outer peripheral portion of the rear fork bearing 20.
Eine Tretkurbelachse 30 weist an beiden Enden einen mit Gewinde versehenen Teil 31 auf.A crank axle 30 has a threaded part 31 at both ends.
Zwei Lager 23 sind in den Nuten 22 des Hinterradgabellagers 20 aufgenommen und das Hinterradgabellager 20 ist in den Ausschnitt 11 der Tretkurbel 10 eingefügt, wobei die beiden longitudinalen Durchgangsbohrungen 21 und 12 miteinander ausgerichtet sind. Dann verläuft die Tretkurbelachse 30 durch die Durchgangsbohrungen 12 und 21 und durch die Lager 13 und 23 hindurch. Danach wird eine Mutter 32 an jedem mit Gewinde versehenen Teil 31 der Tretkurbelachse 30 montiert, dann wird eine mit einem zentralen Loch versehene Kappe 14 an die Tretkurbelachse 30 außerhalb der Mutter 32 montiert. Somit kann das Hinterradgabellager 20 innerhalb des Bereichs des Ausschnitts 11 schwingen, das heißt, wenn sich das Fahrrad auf einem holprigen Weg befindet oder einen Stoß erhält, schwenkt die Hinterradgabel 24 um die Tretkurbelachse 30, so daß der Stoß nicht in das Sitzrohr 15 eingeleitet wird.Two bearings 23 are received in the grooves 22 of the rear fork bearing 20 and the rear fork bearing 20 is inserted into the cutout 11 of the crank 10 with the two longitudinal through holes 21 and 12 aligned with each other. Then, the crank axle 30 passes through the through holes 12 and 21 and through the bearings 13 and 23. After that, a nut 32 is mounted on each threaded part 31 of the crank axle 30, then a cap 14 provided with a central hole is mounted on the crank axle 30 outside the nut 32. Thus, the rear fork bearing 20 can swing within the area of the cutout 11, that is, when the bicycle is on a bumpy road or receives a shock, the rear fork 24 swings around the crank spindle 30 so that the shock is not introduced into the seat tube 15.
PATENTANWÄLTE ■ HEMMERICH · MÜLLER · GROSSE · FOLLMEIER VALENTIN · GIHSKE - 3 - PATENT ATTORNEYS ■ HEMMERICH · MÜLLER · GROSSE · FOLLMEIER VALENTIN · GIHSKE - 3 -
Wie in Figur 4 dargestellt ist, kann die Tretkurbel 10 des vorliegenden Gebrauchsmusters mit einer Aufhängevorrichtung 40 zusammenwirken um bequemeres Radfahren zu ermöglichen.As shown in Figure 4, the pedal crank 10 of the present utility model can interact with a suspension device 40 to enable more comfortable cycling.
Claims (6)
dadurch gekennzeichnet,1. Pedal crank for bicycles,
characterized,
dadurch gekennzeichnet, 2. Pedal crank for bicycles according to claim 1,
characterized,
dadurch gekennzeichnet,3. Pedal crank for bicycles according to claim 1 or 2,
characterized,
gekennzeichnet durch,4. Pedal crank for bicycles according to claim 1, 2 or 3,
marked by,
dadurch gekennzeichnet, 6. Pedal crank for bicycles according to at least one of claims 1 to 5,
characterized,
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9309690U DE9309690U1 (en) | 1993-06-30 | 1993-06-30 | Pedal crank for bicycles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9309690U DE9309690U1 (en) | 1993-06-30 | 1993-06-30 | Pedal crank for bicycles |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9309690U1 true DE9309690U1 (en) | 1993-08-26 |
Family
ID=6894995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9309690U Expired - Lifetime DE9309690U1 (en) | 1993-06-30 | 1993-06-30 | Pedal crank for bicycles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9309690U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19727052C1 (en) * | 1997-06-25 | 1998-11-12 | Den Camp Eckart Op | Brake actuating device for muscle-powered vehicle esp cycle |
DE10235582A1 (en) * | 2002-08-03 | 2004-02-26 | Bayerische Motoren Werke Ag | Bicycle with collapsible frame has clamp connection and corresponding threaded hole located in outer joint components' section facing away from front frame section, with chain derailleur torsionally fixed to front frame section |
-
1993
- 1993-06-30 DE DE9309690U patent/DE9309690U1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19727052C1 (en) * | 1997-06-25 | 1998-11-12 | Den Camp Eckart Op | Brake actuating device for muscle-powered vehicle esp cycle |
DE10235582A1 (en) * | 2002-08-03 | 2004-02-26 | Bayerische Motoren Werke Ag | Bicycle with collapsible frame has clamp connection and corresponding threaded hole located in outer joint components' section facing away from front frame section, with chain derailleur torsionally fixed to front frame section |
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