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DE10032778A1 - Off-set pedal crank for cycles has hollow shaft and central bearing sandwiched between end supports with indirect drive from crank to back wheel - Google Patents

Off-set pedal crank for cycles has hollow shaft and central bearing sandwiched between end supports with indirect drive from crank to back wheel

Info

Publication number
DE10032778A1
DE10032778A1 DE2000132778 DE10032778A DE10032778A1 DE 10032778 A1 DE10032778 A1 DE 10032778A1 DE 2000132778 DE2000132778 DE 2000132778 DE 10032778 A DE10032778 A DE 10032778A DE 10032778 A1 DE10032778 A1 DE 10032778A1
Authority
DE
Germany
Prior art keywords
crank
hollow shaft
end supports
pedal crank
drive
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.)
Withdrawn
Application number
DE2000132778
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.)
Zytek Automotive Ltd
Original Assignee
Continental Engineering Systems Ltd
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 Continental Engineering Systems Ltd filed Critical Continental Engineering Systems Ltd
Priority to DE2000132778 priority Critical patent/DE10032778A1/en
Publication of DE10032778A1 publication Critical patent/DE10032778A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/003—Combination of crank axles and bearings housed in the bottom bracket

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The pedal crank has a hollow shaft and a central bearing fitting set sandwiched between the end supports and held at the back on the frame member (3) by the middle steel structure (10). The drive from the crank to the back wheel is indirect with the first chain drive passing perpendicularly up to a gearbox. The drive wheel (15) for the roller chain is wedged on the left crank whilst the right crank (19) supports the group of double free-wheeling chain wheels (16, 17).

Description

Diese Erfindung bezieht sich auf ZWEI neue Pedalkurbelkonstruktionen, die für Personenfahrräder geeignet ist.This invention relates to TWO new pedal crank designs for Passenger bicycles is suitable.

Diese Fahrräder benützen eine neue Rahmenkonstruktion und Zusammenbau, ein neues Kettenantriebssystem zum Hinterrad, und eine neuartige Auslegung von Hinterradachse und Kettenrad.These bikes use a new frame construction and assembly, a new one Chain drive system to the rear wheel, and a new design of the rear wheel axle and Sprocket.

BESCHREIBUNGDESCRIPTION

Alle Teile sind aus Präzisionsteilen hergestellt und gebrauchen verschiedene gekaufte Teile, wie Reifen, Lager usw., sowie Buntmetallgussteile, laminierte Teile, zusammengesetzte Materialien, Kohlenstoff-Faser/kohlenstoff-faserverstärkter Kunststoff, Rohrbiegungen, Blechteile und Öl/Bremsflüssigkeit.All parts are made from precision parts and use different parts purchased, such as tires, bearings, etc., as well as non-ferrous metal castings, laminated parts, composite Materials, carbon fiber / carbon fiber reinforced plastic, pipe bends, Sheet metal parts and oil / brake fluid.

Die neuen Konstruktionen sind auf zwei Blatt gezeigt, Blatt 1 und Blatt 2, beide zeigen die Pedalkurbelkonstruktion, einschließlich der Kettenräder.The new designs are shown on two sheets, Sheet 1 and Sheet 2, both of which show Pedal crank construction, including sprockets.

ALLGEMEINESGENERAL

Die Grundidee beruht auf dem Wunsch den üblichen Kettenantrieb zu vermeiden, wie er an den meisten Renn- und anderen Fahrrädern Verwendung findet, und der eine dünne gelenkige Kette zum Antrieb des Hinterrades verwendet, mit zwei unerwünschten Eigenschaften; erstens die Tatsache, dass die Kette über zwei kleine Leiträder läuft, die nicht immer fluchten und zweitens, dass die Kette bei hohen Geschwindigkeiten über das kleinste Kettenrad läuft.The basic idea is based on the desire to avoid the usual chain drive as he does most racing and other bicycles, and the thin articulated one Chain used to drive the rear wheel, with two undesirable properties; first, the fact that the chain runs over two small idlers that are not always in alignment and second, that the chain runs over the smallest sprocket at high speeds.

DIE PEDALKURBELTHE PEDAL CRANK

Beide Pedalkurbelarrangements benützen eine hohle Achse 18, die in radialen Kugellagern 19 gelagert ist, die von einem leichten Stahlrohr 20 getragen sind, das an einem zentralen Blechteil 10 angeschweißt ist, das wiederum nach hinten am Zentralglied 3 gehalten ist und in Sandwichbauart zwischen den Endstützen Nr. 7 und 8 in der ersten Version, und Nr. 25 und 26 in der zweiten Version liegt, drei radiale Kopfschrauben 9 halten die gesamte Montage zusammen. Both pedal crank arrangements use a hollow axle 18 , which is mounted in radial ball bearings 19 , which are supported by a light steel tube 20 , which is welded to a central sheet metal part 10 , which in turn is held to the rear on the central member 3 and sandwiched between the end supports No. 7 and 8 in the first version, and No. 25 and 26 in the second version, three radial cap screws 9 hold the entire assembly together.

Die zweite Version, Blatt 2, zeigt ein Hauptbauelement Teil 21, das zwischen den Endstützen und der Stahlmontage angebracht ist, wobei die Endstützen das gesamte Gefüge starr machen. Die Drehkraft wird von beiden Pedalkurbeln 12 und 14 mittels Keilwellennuten an beiden Enden der Welle 18 übertragen, wie gezeigt, das Kettenrad 15 wird an der linken Kurbelnabe 12 mit einem Keil gehalten. Der primäre Antrieb geht von Kettenrad 15 mittels einer Rollenkette an die Antriebswelle eines Getriebekastens und kehrt vom Getriebekasten wieder nach unten zur Pedalkurbel zurück, und treibt dann die freilaufenden Kombikettenräder 16 und 17, die wiederum das Hinterrad über das Kettenrad 17 antreiben.The second version, sheet 2, shows a main component part 21 , which is attached between the end supports and the steel assembly, the end supports making the entire structure rigid. The torque is transmitted from both pedal cranks 12 and 14 by spline grooves on both ends of the shaft 18 , as shown, the sprocket 15 is held on the left crank hub 12 with a key. The primary drive goes from sprocket 15 to the drive shaft of a gear box by means of a roller chain and returns from the gear box back down to the pedal crank, and then drives the free-running combination sprockets 16 and 17 , which in turn drive the rear wheel via the sprocket 17 .

Teil 4 ist der Hinterradstützträger, der mit Doppelbolzen 5 festgehalten wird, die, wie gezeigt, an den Endstützen befestigt sind, und wenn die Hinterradachse gefedert aufgehängt ist, dann wird nur der obere Bolzen 5 verwendet.Part 4 is the rear wheel support bracket which is held in place with double-bolt 5 which, as shown, attached to the end supports, and if the rear wheel axle is suspended from suspension, then the upper bolt 5 is used only.

Claims (2)

1. Eine neuartige versetzte Pedalkurbel mit Hohlwelle, bei der die Starrheit der Montage dadurch erreicht wird, dass die Zentrallagermontage sandwichartig zwischen den Endstützen liegt und rückwärts am Rahmenglied 3, mittels der mittleren Stahlkonstruktion 10 in beiden Versionen gehalten ist.1. A novel offset pedal crank with hollow shaft, in which the rigidity of the assembly is achieved in that the central bearing assembly is sandwiched between the end supports and is held backwards on the frame member 3 by means of the middle steel structure 10 in both versions. 2. Eine neuartige versetzte Pedalkurbel mit Hohlwelle, wie in 3a beansprucht, wobei das Triebrad 15 für die Rollenkette an der linken Kurbel angekeilt ist. Die rechte Pedalkurbel 19 trägt die Gruppe von doppelten freilaufenden Kettenrädern 16 und 17, die auf einem einzigen Kugellager befestigt ist und den Antrieb an das Hinterrad überträgt.2. A novel offset pedal crank with a hollow shaft, as claimed in FIG. 3 a, the drive wheel 15 for the roller chain being keyed to the left crank. The right pedal crank 19 carries the group of double free-running sprockets 16 and 17 , which is mounted on a single ball bearing and transmits the drive to the rear wheel.
DE2000132778 2000-06-28 2000-06-28 Off-set pedal crank for cycles has hollow shaft and central bearing sandwiched between end supports with indirect drive from crank to back wheel Withdrawn DE10032778A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000132778 DE10032778A1 (en) 2000-06-28 2000-06-28 Off-set pedal crank for cycles has hollow shaft and central bearing sandwiched between end supports with indirect drive from crank to back wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000132778 DE10032778A1 (en) 2000-06-28 2000-06-28 Off-set pedal crank for cycles has hollow shaft and central bearing sandwiched between end supports with indirect drive from crank to back wheel

Publications (1)

Publication Number Publication Date
DE10032778A1 true DE10032778A1 (en) 2002-01-10

Family

ID=7647948

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000132778 Withdrawn DE10032778A1 (en) 2000-06-28 2000-06-28 Off-set pedal crank for cycles has hollow shaft and central bearing sandwiched between end supports with indirect drive from crank to back wheel

Country Status (1)

Country Link
DE (1) DE10032778A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2918488A1 (en) * 2002-03-08 2015-09-16 Shimano Inc. Bicycle crank assembly and method for assembling the same
US11142280B2 (en) 2016-03-24 2021-10-12 The Hive Global, Inc. Bicycle crank with spindle attachment structure
US11351815B2 (en) 2017-08-21 2022-06-07 The Hive Global, Inc. Bicycle cassette with clamping connection
US11485449B2 (en) 2015-09-01 2022-11-01 The Hive Global, Inc. Bicycle cassette with locking connection
US11932351B2 (en) 2020-07-17 2024-03-19 The Hive Global, Inc. Conical bicycle cassette sprocket structure
US12030586B2 (en) 2021-07-12 2024-07-09 The Hive Global, Inc. Seal for bicycle crank with differential chainring motion

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR734242A (en) * 1932-03-26 1932-10-18 Improvements in the construction of motor bicycles
US6073950A (en) * 1997-10-28 2000-06-13 Busby; James S. Bicycle with crank assembly suspension system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR734242A (en) * 1932-03-26 1932-10-18 Improvements in the construction of motor bicycles
US6073950A (en) * 1997-10-28 2000-06-13 Busby; James S. Bicycle with crank assembly suspension system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
10147278 A *
JP Patent Abstracts of Japan: 11278349 A *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2918488A1 (en) * 2002-03-08 2015-09-16 Shimano Inc. Bicycle crank assembly and method for assembling the same
US11485449B2 (en) 2015-09-01 2022-11-01 The Hive Global, Inc. Bicycle cassette with locking connection
US11142280B2 (en) 2016-03-24 2021-10-12 The Hive Global, Inc. Bicycle crank with spindle attachment structure
US11351815B2 (en) 2017-08-21 2022-06-07 The Hive Global, Inc. Bicycle cassette with clamping connection
US11932351B2 (en) 2020-07-17 2024-03-19 The Hive Global, Inc. Conical bicycle cassette sprocket structure
US12030586B2 (en) 2021-07-12 2024-07-09 The Hive Global, Inc. Seal for bicycle crank with differential chainring motion

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee