DE8411012U1

DE8411012U1 - BOTTOM BRACKET GEAR GEARBOX

Info

Publication number: DE8411012U1
Application number: DE19848411012
Authority: DE
Original assignee: BUNJES WALTER 6719 EISENBERG DE
Current assignee: BUNJES WALTER 6719 EISENBERG DE
Priority date: 1984-04-07
Filing date: 1984-04-07
Publication date: 1984-11-15

Description

Tretlager-Gangschaltungggetri^bs !Bottom bracket gears!

B. Arbeitsweise des Getriebes:B. Mode of operation of the gearbox:

1. Normalgang (Abb. l): Die Antriebskraft wird von der Tretkurbelachse (1) über eine außerhalb des Getriebegehäuses liegende sog. Bolzenscheibe (lO) auf das Antriebszahnrad (9) und von dort auf die Kette zum Hinterrad Übertragen. Beim Normalgang ist das Getriebe ausgeschaltet, da das Sonnenrad (2) von den Planetenrädern (3) getrennt ist.1. Normal gear (Fig. L): The driving force is provided by the crank axle (1) on the drive gearwheel via a so-called pin washer (10) located outside the gearbox housing (9) and from there transferred to the chain to the rear wheel. In normal gear, the gearbox is switched off because that Sun gear (2) is separated from the planet gears (3).

2. Untersetzter Gang (Abb. 2): Durch seitliches Versetzen der Tretkurbelachse (l) mit Hilfe einer Versetzungsscheibe (5) wird das Getriebe eingeschaltet, d.h. das Sonnenrad (2) wird mit den Planetenrädern (3) verbunden.2. Reduced gear (Fig. 2): By laterally offsetting the pedal crank axle (l) with the aid of an offset disk (5) the gearbox is switched on, i.e. the sun gear (2) is connected to the planetary gears (3).

Die Antriebskraft wird von der Tretkurbelachse (1) durch das darauf befindliche Sonnenrad (2) auf die Planetenräder (3) übertragen. Durch den Eingriff der Zahnung der Planetenräder in den Zahnkranz (4) am Getriebegehäuse beginnt die Halterung (6+7) der Planetenräder sich um die Tretkurbelachse (l) zu drehen. Diese Bewegung wird auf das Antriebszahnrad (9) mit der Kette zum Hinterrad übertragen, indem die von der Halterung (6+ 7) mitgeführten Achsverlängerungen (ll) der Planetenräder in das Antriebszahnrad (9) eingreifen und dieses mitbewegen.The drive force is provided by the crank shaft (1) the sun gear (2) on it is transferred to the planet gears (3). Through the meshing of the toothing of the planetary gears The bracket (6 + 7) of the planetary gears begins in the ring gear (4) on the gearbox housing around the crank axle (l) to turn. This movement is transmitted to the drive gear (9) with the chain to the rear wheel by the axle extensions (ll) of the planetary gears carried along by the bracket (6+ 7) engage in the drive gear (9) and move this with you.

Die Größe des untersetzten Ganges kann durch die Wahl des Größenverhältnisses des Sonnenrades zu den Planetenrädern bestimmt werden j im skizzierten Fall: 3:1(3 Umdrehungen der Tretkurbelachse bzw. des Sonnenrades = 1 Umdrehung des Antviebszahnrades bzw. der Planetenradhalterung).The size of the reduced gear can be determined by choosing the size ratio of the sun gear to the planet gears j in the sketched case are determined: 3: 1 (3 revolutions of the crank axle or the sun gear = 1 revolution of the Drive gear or the planetary gear holder).

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Claims

Tretlager-Gangschalturfgsjgetriäbij * £ ».. BUstJf ^ s) -G 8411012.0-

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Protection claims

1. Bottom bracket gear shift transmission, characterized in that that it is surrounded by two cylindrical hollow bodies, which are screwed together by a thread and become one Hollow body (= gear housing) (4) are connected.

2. bottom bracket gear shift transmission according to claim 1, characterized in that in the one hollow body with an external thread an internal gear rim is milled into the inner wall opposite this thread.

3. bottom bracket gear shift transmission according to claim 1, characterized characterized in that the planetary gears (3) of the transmission have the same teeth as the inner ring gear of the Gear housing in which they engage.

4 · Pedal gear shift transmission according to claim 1, characterized characterized in that the planet gears are each mounted on an axis and these axes are fixed in a common one Brackets (6 + 7) are screwed in and secured by a clamping nut screwed on each.

5. bottom bracket gear shift transmission according to claim 1, characterized in that the aforementioned bracket consists of two There is disc-shaped parts which are fastened to one another with Allen screws.

6. bottom bracket gear shift transmission according to claim 1, characterized characterized in that the planetary gears (3) in their to the Housing fixed storage are held.

7. bottom bracket gear shift transmission according to claim 1, characterized in that the FUhrungsseheibe (8) for the Planetary gear axles (ll) by a clamping ring on the one hand and by the inwardly drawn edge of the housing on the other is held in their storage fixed to the gearbox housing.

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8. bottom bracket gear shift transmission according to claim 1, characterized

characterized in that the drive gear (9) by a '* guided guide fork attached to the two-wheeler and thereby in

his bearing fixed to the gearbox housing is held.

9-bottom bracket gear shift transmission according to claim 1, characterized characterized in that the displacement washer (5) and the bolt washer (lO) with Allen screws on the drive axle (1) to be attached to the assembly of the gearbox enable.

lO. Bottom bracket gear shift transmission according to claim 1, characterized in that the bolts of the bolt washer (lC) are in these are screwed in tightly and held in place by Klemin nuts will.

Jl. Bottom bracket gear shift transmission according to claim 1, characterized characterized in that the sun gear (2) by a wedge inserted in it and in the drive axle (1) with the Axis is firmly connected.

12. bottom bracket gear shift transmission according to claim 1, characterized in that all rotating parts of the transmission held by ball or pin bearings on their axis will.

13. Tretlagei'-gear shift transmission according to claim 1, characterized «Marked that the parts of the gear are made of iron, steel or suitable plastic.

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