DE686510C - Two-part axle for bottom bracket - Google Patents

Two-part axle for bottom bracket

Info

Publication number
DE686510C
DE686510C DE1938B0183046 DEB0183046D DE686510C DE 686510 C DE686510 C DE 686510C DE 1938B0183046 DE1938B0183046 DE 1938B0183046 DE B0183046 D DEB0183046 D DE B0183046D DE 686510 C DE686510 C DE 686510C
Authority
DE
Germany
Prior art keywords
axle
bottom bracket
part axle
halves
conical
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
Application number
DE1938B0183046
Other languages
German (de)
Inventor
Franz Bielefeld
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.)
FRANZ BIELEFELD
Original Assignee
FRANZ BIELEFELD
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 FRANZ BIELEFELD filed Critical FRANZ BIELEFELD
Priority to DE1938B0183046 priority Critical patent/DE686510C/en
Application granted granted Critical
Publication of DE686510C publication Critical patent/DE686510C/en
Expired 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
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/34—Bottom brackets

Description

Zweiteilige Achse für Tretlager Die Erfindung betrifft eine zweiteilige Achse für Tretlager, wie sie an sich bei Tretlagern für Fahrräder schon bekannt sind, um ein leichtes Auseinandernehmen des Lagers zu ermöglichen. Es ist dabei auch bekannt, daß die Kurbeln mit den Achshälften aus einem Stück gefertigt sind. Das Neue besteht bei meiner Erfindung darin, daß die beiden Achshälften konische und gezahnte Enden tragen, die in eine entsprechend geformte Hülse von beiden Seiten eingreifen. Dadurch wird eine besonders hältbare Kupplung der beiden Achshälften und eine einfache Verstellbarkeit des Kurbelabstandes durch Auswechslung der Doppelkonushülse erreicht.Two-part axle for bottom bracket The invention relates to a two-part axle Axle for bottom brackets, as they are already known for bottom brackets for bicycles to allow easy dismantling of the bearing. It is there also known that the cranks with the axle halves are made in one piece. The new thing about my invention is that the two halves of the axle are conical and bear toothed ends that fit into a correspondingly shaped sleeve from both sides intervention. This creates a particularly durable coupling between the two halves of the axle and easy adjustability of the crank distance by replacing the double-cone sleeve achieved.

Fig. i der Zeichnung zeigt einen Längsschnitt des Tretlagers, Fig.2 einen Querschnitt nach der Linie a-b der Fig.. i und Fig.3 die doppelkonische Hülse allein im Schnitt. Die beiden Achshälften, die mit den Kurbeln i und 2 aus einem Stück bestehen, sind mit Rechts- und Linksgewinde in zwei Lagerbuchsen 3 und 4 eingeschraubt, die durch Spannschrauben 5 zusammengespannt werden. Die Lagerbuchsen 3 und .4 sind an den einander zugekehrten Flächen ausgespart und .nehmen in der Aussparung eine Hülse 6 mit doppelkonischer, gezahnter- Bohrung auf, in welche die konischen und gezahnten Enden 7 und 8 der Achshälften von beiden Seiten eingreifen. Dadurch wird eine besonders haltbare Kupplung 'der beiden Achshälften bewirkt. Durch Einbau verschieden langer Doppelkonushülsen 6 kann in einfacher Weise unter Beibehaltung aller anderen 'feile der Abstand der Kurbeln i und :2 verändert und verschiedenen Tretlagerbreiten angepaßt werden.Fig. I of the drawing shows a longitudinal section of the bottom bracket, Fig.2 a cross section along the line a-b of Fig. i and Fig.3 the double-conical sleeve alone in the cut. The two halves of the axle, which are made of one with the cranks i and 2 Pieces are screwed into two bearing bushes 3 and 4 with right and left threads, which are clamped together by clamping screws 5. The bushings 3 and .4 are cut out on the facing surfaces and take a Sleeve 6 with double-conical, toothed hole, in which the conical and Toothed ends 7 and 8 of the axle halves engage from both sides. This will a particularly durable coupling 'causes the two halves of the axle. Different by installation long double cone sleeves 6 can be easily done while retaining all other 'File the distance between the cranks i and: 2 changed and different bottom bracket widths be adjusted.

Claims (1)

PATENTANSPRUCH: Zweiteilige Achse für Tretlager, dadurch gekennzeichnet, daß die beiden Achshälften konische und gezahnte Enden (7 und 8) tragen, die in eine entsprechend geformte Hülse (6) von beiden Seiten eingreifen.PATENT CLAIM: Two-part axle for bottom bracket, characterized that the two axle halves carry conical and toothed ends (7 and 8), which in engage a correspondingly shaped sleeve (6) from both sides.
DE1938B0183046 1938-05-10 1938-05-10 Two-part axle for bottom bracket Expired DE686510C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1938B0183046 DE686510C (en) 1938-05-10 1938-05-10 Two-part axle for bottom bracket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1938B0183046 DE686510C (en) 1938-05-10 1938-05-10 Two-part axle for bottom bracket

Publications (1)

Publication Number Publication Date
DE686510C true DE686510C (en) 1940-01-11

Family

ID=7009462

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1938B0183046 Expired DE686510C (en) 1938-05-10 1938-05-10 Two-part axle for bottom bracket

Country Status (1)

Country Link
DE (1) DE686510C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011120257A1 (en) * 2011-12-02 2013-06-06 Audi Ag Pedal crank assembly for bicycle, such as electric bicycle, has pedal cranks, which are optionally locked to one another in two positions, where pedal cranks are displaced to one another around one hundred eighty degree in former position
DE102013214701A1 (en) * 2013-07-26 2015-01-29 Ovalo Gmbh pedal crankshaft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011120257A1 (en) * 2011-12-02 2013-06-06 Audi Ag Pedal crank assembly for bicycle, such as electric bicycle, has pedal cranks, which are optionally locked to one another in two positions, where pedal cranks are displaced to one another around one hundred eighty degree in former position
DE102011120257B4 (en) * 2011-12-02 2018-02-22 Audi Ag Pedal crank assembly for bicycles with electric drive
DE102013214701A1 (en) * 2013-07-26 2015-01-29 Ovalo Gmbh pedal crankshaft
DE102013214701B4 (en) * 2013-07-26 2017-01-12 Ovalo Gmbh bottom bracket

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