DE749548C - Speed change transmission - Google Patents
Speed change transmissionInfo
- Publication number
- DE749548C DE749548C DEN45576D DEN0045576D DE749548C DE 749548 C DE749548 C DE 749548C DE N45576 D DEN45576 D DE N45576D DE N0045576 D DEN0045576 D DE N0045576D DE 749548 C DE749548 C DE 749548C
- Authority
- DE
- Germany
- Prior art keywords
- roller bearing
- rollers
- drive
- speed change
- gear
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/083—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with radially acting and axially controlled clutching members, e.g. sliding keys
-
- 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
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/06—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with spur gear wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
Description
Geschwindigkeitswechselgetriebe Die Erfindung bezieht sich .auf ein Geschwindigkeitswechselgetriebe, insbesondere für Fahrräder, bei welchem die Geschwindig-1.:eitsänderung durch Rückwärtsdrehen der Antriebswelle erreicht wird, wobei das mit dem auf der getriebenen Welle sitzenden- Abtriebszahnrad in Verbindung stehende bersetzungsräderwerk durch federbeeinflußte Klinkenpaare auf der Antriebswelle gesteuert wird und das Abtriebszähnrad gegen die Antriebswelle durch mindestens zwei Rollenlager und gegen das Getriebsgehäuse durch mindestens ein Rollenlager abgestützt ist, wobei der Endabstand der ersteren größer ist als der Durchmesser der Antriebswelle.Speed change transmission The invention relates .to Speed change transmission, especially for bicycles, in which the speed change is achieved by rotating the drive shaft backwards, with the one on the driven shaft seated- output gear connected reduction gear train is controlled by spring-influenced pairs of pawls on the drive shaft and that Output gear against the drive shaft through at least two roller bearings and against the gear housing is supported by at least one roller bearing, the end distance the former is larger than the diameter of the drive shaft.
Der Kettenzug verursacht bei diesen bekannten Ausführungen eine Kippung des Abtriebsrades, die nicht innerhalb unschädlicher Grenzen bleibt.The chain hoist causes tilting in these known designs of the output gear, which does not remain within harmless limits.
Zweck vorliegender Erfindung ist es, diese Kippung so klein wie möglich, also unscliiidlich zu machen. Dies wird dadurch -erreicht, daß der Endflächenabstand der Rollen des .das Ahtriebsrad gegen die Antriebs-,velle abstützenden Rollenlagers höchstens 2,8ma1 größer ist als der Abstand der Stirnflächen ' der Rollen des Lagers zwischen Abtriebszahnr ad und Getriebegehäuse.The purpose of the present invention is to keep this tilting as small as possible, thus to make unscluid. This is achieved in that the end face spacing the rollers of the .das Ahtriebsrad against the drive, shaft supporting roller bearing is at most 2.8 times greater than the distance between the end faces of the rollers of the bearing between the output gear and the gear housing.
Die Zeichnung zeigt eine Ausführungsform des Erfindungsgegenstandes.The drawing shows an embodiment of the subject matter of the invention.
Die Nabe des Abtriebszahnr.ades ;, an welcher ,auch das Kettenrad 17 des Fahriades befestigt ist, ist mit Hilfe des Rollenlagers 18 im Gehäuse 14 drehbar angeordnet. Das Abtriebszahnrad 5 ist gegenüber der Antriebswelle a durch die Rollenlager :22 abgestützt. Da auch Rollenlager ein gewisses Radialspiel haben müssen, so versucht der Kettenzug am Rad i; eine Kippung des Abtriebszahnrades 5. Dies äußert sich in einer ungleichen Belastung des Axiallagers 21. Zweck der neuen Rollenlageranordnung ist, wie schon eingangs erwähnt, diese Kippung so-ielein wie möglich zit halten. Dazu - muß der Abstand der voneinander abgekehrten Stirnflächen der Rollen der Lager ==. also die Länge L, möglichst groß sein, ebenso die Länge/ der Rollen des Lagers 18. Damit die langen Rollen des letzteren über ihre ganzeMantellinienlä nge regelmäßig aufliegen. ;i sind sie durch eine Rille ;o unterteilt. Uni bezüglich des Kippens günstige @erhä ltn iss zu erhalten. muß das Verhältnis zwischen (leg Länge L und dem Durchmesser c/ der Antriebswelle 2 mindestens ij und das '@erhä ltnis zwischen der L änge L und der Länge/ höchstens 2,8, gemacht «-erden.The hub of the output toothed wheel; to which the chain wheel 17 of the bicycle is attached is rotatably arranged in the housing 14 with the aid of the roller bearing 18. The output gear 5 is supported with respect to the drive shaft a by the roller bearings: 22. Since roller bearings must also have a certain radial play, the chain hoist tries on wheel i; a tilting of the output gear 5. This manifests itself in an uneven load on the axial bearing 21. As already mentioned, the purpose of the new roller bearing arrangement is to keep this tilting as low as possible. To do this - the distance between the faces of the rollers of the bearings facing away from each other must ==. That is, the length L should be as large as possible, as well as the length / of the rollers of the bearing 18. So that the long rollers of the latter rest regularly over their entire circumferential length. ; i they are divided by a groove; o. Uni regarding the tilting to get cheap @ iss. the ratio between (leg length L and the diameter c / of the drive shaft 2 must be at least ij and the '@ ratio between the length L and the length / at most 2.8, made'.
Anstatt nur zwei können auch mehr Rollenlager 22 vorgesehen sein. Die Länge I_ ist dabei imnicr der Abstand der voneinander abgekehrten Stirnflächen der Rallen der ])eiden äußeren Lager. Auch dann empfiehlt es sich, die oben angegebenen Grenzen für die Verhältnisse einzuhalten, ebenso rlann, -,renn mehr als ein Rollenlager 18 vorgesehen wäre. Die Länge / wäre dann der Abstand der voneinander abgekehrten Stirnflächen der lieicien äußeren Rollenlager.Instead of just two, more roller bearings 22 can also be provided. The length I_ is at the same time the distance between the facing faces of the claws of the two outer bearings. Even then, it is advisable to use the limits given above for the ratios to be adhered to, as well as if more than one roller bearing 18 would be provided. The length / would then be the distance between the faces of the lieicien outer roller bearings facing away from one another.
Die Rollen haben "Zapfen 71- die mit reichlich Spiel in .die Poiirungen;2 der Käfige;; treten. So bilden die Rollenlager in bekannter Weis,. ein Ganze. was --Montage und Deniontage erleichtert.The rollers have "pegs 71 - which have plenty of play in the pinholes; 2 the cages ;; step. So form the roller bearings in a well-known way. a whole. What - Assembly and denion days made easier.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH749548X | 1941-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE749548C true DE749548C (en) | 1944-11-24 |
Family
ID=4533752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN45576D Expired DE749548C (en) | 1941-04-23 | 1942-04-12 | Speed change transmission |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE749548C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4134843A1 (en) * | 1991-10-22 | 1992-11-26 | Bernhard Albrecht | TRANSMISSION ARRANGEMENT FOR SENIOR BICYCLES |
DE19712444A1 (en) * | 1997-03-25 | 1998-10-01 | Gerhard Mueller | Gearchange system for bicycle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH190877A (en) * | 1936-12-02 | 1937-05-15 | Graenichen A G Maschf | Pedal bearing speed change transmission for bicycles. |
CH191128A (en) * | 1936-03-31 | 1937-05-31 | Schulthess Theodor | Change gears on bicycles with crank drive. |
CH191395A (en) * | 1936-10-09 | 1937-06-15 | Schulthess Theodor | Change gears for bicycles with crank drive. |
-
1942
- 1942-04-12 DE DEN45576D patent/DE749548C/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH191128A (en) * | 1936-03-31 | 1937-05-31 | Schulthess Theodor | Change gears on bicycles with crank drive. |
CH191395A (en) * | 1936-10-09 | 1937-06-15 | Schulthess Theodor | Change gears for bicycles with crank drive. |
CH190877A (en) * | 1936-12-02 | 1937-05-15 | Graenichen A G Maschf | Pedal bearing speed change transmission for bicycles. |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4134843A1 (en) * | 1991-10-22 | 1992-11-26 | Bernhard Albrecht | TRANSMISSION ARRANGEMENT FOR SENIOR BICYCLES |
DE19712444A1 (en) * | 1997-03-25 | 1998-10-01 | Gerhard Mueller | Gearchange system for bicycle |
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