DE102011083529A1 - Shift fork for axial movement of sliding collar in shift gearbox, has base body designed to radially overlap axially adjacent gearwheel towards sliding collar, where base body is axially projected over gearwheel - Google Patents
Shift fork for axial movement of sliding collar in shift gearbox, has base body designed to radially overlap axially adjacent gearwheel towards sliding collar, where base body is axially projected over gearwheel Download PDFInfo
- Publication number
- DE102011083529A1 DE102011083529A1 DE102011083529A DE102011083529A DE102011083529A1 DE 102011083529 A1 DE102011083529 A1 DE 102011083529A1 DE 102011083529 A DE102011083529 A DE 102011083529A DE 102011083529 A DE102011083529 A DE 102011083529A DE 102011083529 A1 DE102011083529 A1 DE 102011083529A1
- Authority
- DE
- Germany
- Prior art keywords
- base body
- shift
- gearwheel
- sliding sleeve
- axially
- 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- Withdrawn
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
- F16H2063/321—Gear shift yokes, e.g. shift forks characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Die Erfindung betrifft eine Schaltgabel zum axialen Verschieben einer Schiebemuffe in einem Schaltgetriebe, mit einem die Schiebemuffe axial überragenden, mit einer Führungs- bzw. Schaltstange verbundenen Grundkörper und daran angeordneten, die Schiebemuffe bereichsweise umgreifenden sowie mit dieser in Wirkverbindung stehenden Schenkeln. The invention relates to a shift fork for the axial displacement of a sliding sleeve in a transmission, with a sliding sleeve axially superior, with a guide or shift rod connected to the base body and arranged thereon, the sliding sleeve partially encompassing and standing in operative connection with these legs.
Derartige Schaltgabeln dienen dazu in einem Schaltgetriebe einen Gangwechsel zu bewirken, indem ein drehbar auf einer Getriebewelle angeordnetes Zahnrad mit dieser Getriebewelle drehfest verbunden wird. Zu diesem Zweck lässt sich eine mit einer Innenverzahnung versehene Schiebemuffe mit Hilfe der Schaltgabel auf einer Außenverzahnung der Getriebewelle axial verschieben, um mit einer Außenverzahnung an dem benachbarten Zahnrad in Eingriff gebracht zu werden. Such shift forks are used in a manual transmission to effect a gear change by a rotatably mounted on a gear shaft gear is rotatably connected to this gear shaft. For this purpose, a sliding sleeve provided with an internal toothing can be displaced axially on an external toothing of the gear shaft by means of the shift fork, in order to be brought into engagement with external toothing on the adjacent gear wheel.
Aus der
Eine ähnlich aufgebaute Schaltgabel ist aus der
Aus den genannten Druckschriften ist indessen erkennbar, dass die Betätigung der dortigen Schaltgabeln mittels Betätigungselemente erfolgen soll, die radial außerhalb der radial äußeren Umfangsflächen der Schaltgabeln angeordnet sind. Dies ist dann möglich, wenn die Platzverhältnisse in einem Getriebegehäuse es erlauben, diese Betätigungselemente radial außerhalb der Zahnräder anzuordnen. However, it can be seen from the cited references that the actuation of the local shift forks should be effected by means of actuating elements which are arranged radially outside the radially outer peripheral surfaces of the shift forks. This is possible if the space available in a transmission housing allow to arrange these actuators radially outside of the gears.
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine Schaltgabel vorzuschlagen, die sich bei radial sehr beengten Raumverhältnissen im Schaltgetriebe betätigen lässt. Against this background, the invention has the object to propose a shift fork, which can be actuated at radially very narrow space in the transmission.
Ausgehend von dieser Aufgabenstellung betrifft die Erfindung eine Schaltgabel zum axialen Verschieben einer Schiebemuffe in einem Schaltgetriebe, mit einem die Schiebemuffe axial überragenden, mit einer Führungs- bzw. Schaltstange verbundenen Grundkörper und daran angeordneten, die Schiebemuffe bereichsweise umgreifenden sowie mit dieser in Wirkverbindung stehenden Schenkeln. Zur Lösung der Aufgabe ist vorgesehen, dass der Grundkörper so ausgebildet ist, dass er ein zur Schiebemuffe axial benachbartes Zahnrad radial übergreift sowie über dieses axial hinausragt, und dass an dem schenkelfernen axialen Ende des Grundkörpers eine Befestigungs- oder Führungsvorrichtung zur Aufnahme der Führungs- bzw. Schaltstange ausgebildet ist, die mit axialem Abstand zum Zahnrad radial nach innen versetzt angeordnet ist. Based on this task, the invention relates to a shift fork for axially sliding a sliding sleeve in a transmission, with a sliding sleeve axially superior, with a guide or switching rod connected to the base body and arranged thereon, the sliding sleeve in some areas encompassing and standing in operative connection with these legs. To solve the problem, it is provided that the base body is designed so that it overlaps a radially adjacent to the sliding sleeve gear and extends beyond this axially, and that on the leg distal axial end of the body, a fastening or guiding device for receiving the management or . Shift rod is formed, which is arranged offset radially inwardly with axial distance from the gear.
Die Schaltgabel gemäß der Erfindung ermöglicht es daher, eine Schiebemuffe axial zu verschieben, ohne dass zwischen einem zur Schiebemuffe benachbarten Zahnrad und einem Getriebegehäuse ein so großer Abstand vorhanden sein muss, dass sich eine Führungs- bzw. Schaltstange an diesem Zahnrad radial vorbeiführen lässt. Vielmehr wird das axiale Ende der Führungs- bzw. Schaltstange radial nach innen versetzt im Bereich einer Stirnseite dieses Zahnrades angeordnet, so dass nur der verhältnismäßig dünnwandige Grundkörper den Außenumfang des Zahnrades übergreift. The shift fork according to the invention therefore makes it possible to displace a sliding sleeve axially without the need for such a large distance between a gearwheel adjacent to the sliding sleeve and a gearbox housing that a guide rod can pass radially past this gearwheel. Rather, the axial end of the guide or shift rod is offset radially inwardly in the region of an end face of this gear, so that only the relatively thin-walled body engages over the outer circumference of the gear.
Zu diesem Zweck ist der Grundkörper vorzugsweise teilzylindrisch ausgebildet und zur Versteifung im Bereich seines mit den Schenkeln versehenen axialen Endes abgewinkelt. Darüber hinaus können der abgewinkelte Bereich und die Schenkel mit Gleitschuhen versehen sein, welche mit der Schiebemuffe in Wirkverbindung stehen. For this purpose, the base body is preferably formed part-cylindrical and angled for stiffening in the region of its provided with the legs axial end. In addition, the angled portion and the legs may be provided with sliding shoes, which are in operative connection with the sliding sleeve.
Der Grundkörper mit den Schenkeln kann als Blechpressteil hergestellt sein. Außerdem kann die Befestigungs- oder Führungsvorrichtung zur Aufnahme einer zylindrischen Führungs- bzw. Schaltstange an der über das Zahnrad axial hinausragenden Seite des Grundkörpers als eine zylindrische Buchse ausgebildet sein. The main body with the legs can be made as a sheet metal stamping. In addition, the attachment or guide device for receiving a cylindrical guide or switching rod may be formed on the axially projecting beyond the gear wheel side of the base body as a cylindrical sleeve.
Die Führungs- bzw. Schaltstange kann in der Buchse fest verankert und somit mit der Schaltgabel axial verschiebbar sein. Ebenso ist es möglich, eine axial unverschiebbare Führungsstange vorzusehen, die in der Buchse axial verschiebbar angeordnet ist. The guide or shift rod can be firmly anchored in the socket and thus be axially displaceable with the shift fork. Likewise, it is possible to have one provide axially immovable guide rod which is arranged axially displaceably in the socket.
Entsprechend der jeweiligen Ausführungsform kann am Grundkörper ein radial abstehender Hebel vorgesehen sein, der zur Betätigung und/oder zur sensorischen Lagefeststellung der Schaltgabel dient. According to the respective embodiment, a radially projecting lever may be provided on the base body, which serves for the actuation and / or for sensory position detection of the shift fork.
Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels weiter erläutert. In der Zeichnung zeigt The invention will be explained below with reference to an embodiment shown in the drawing. In the drawing shows
Von einem Schaltgetriebe
Die Schiebemuffe
Zwischen dem ersten Zahnrad
Das in
In
Bei einer zweiten Bauform, bei der die Führungs- bzw. Schaltstange
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Schaltgetriebe manual transmission
- 22
- Getriebewelle gear shaft
- 33
- Zahnrad, Losrad Gear, idler gear
- 44
- Zahnrad, Festrad Gear, fixed wheel
- 55
- Schiebemuffe sliding sleeve
- 66
- Schaltgabel shift fork
- 77
- Grundkörper body
- 8a8a
- Schenkel leg
- 8b8b
- Schenkel leg
- 99
- Abgewinkelter Bereich Angled area
- 1010
- Gleitschuhe skids
- 1111
- Buchse Rifle
- 1212
- Führungs- bzw. Schaltstange Guide rod or shift rod
- 1313
- Hebel lever
- 1414
- Befestigungs- oder Führungsvorrichtung Fastening or guiding device
- 1515
- Axialer Abstand Axial distance
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102005057815 A1 [0003] DE 102005057815 A1 [0003]
- DE 102007047602 A1 [0004] DE 102007047602 A1 [0004]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011083529A DE102011083529A1 (en) | 2011-09-27 | 2011-09-27 | Shift fork for axial movement of sliding collar in shift gearbox, has base body designed to radially overlap axially adjacent gearwheel towards sliding collar, where base body is axially projected over gearwheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011083529A DE102011083529A1 (en) | 2011-09-27 | 2011-09-27 | Shift fork for axial movement of sliding collar in shift gearbox, has base body designed to radially overlap axially adjacent gearwheel towards sliding collar, where base body is axially projected over gearwheel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011083529A1 true DE102011083529A1 (en) | 2013-03-28 |
Family
ID=47827738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011083529A Withdrawn DE102011083529A1 (en) | 2011-09-27 | 2011-09-27 | Shift fork for axial movement of sliding collar in shift gearbox, has base body designed to radially overlap axially adjacent gearwheel towards sliding collar, where base body is axially projected over gearwheel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102011083529A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014116175A1 (en) * | 2013-01-28 | 2014-07-31 | Scania Cv Ab | Gearbox with manoeuvring fork and vehicle including such a gearbox |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10125450A1 (en) * | 2001-05-25 | 2002-12-05 | Getrag Getriebe Zahnrad | Operating unit for a synchronizer sleeve comprises a shift section and a fork which are made as a single component consisting or the same material, while the driver is attached to the unit thus produced |
DE10202651A1 (en) * | 2002-01-23 | 2003-07-31 | Koki Technik Stanz Und Feinsta | Transmission with shift rail and fork has shift rail which is round in cross section |
DE102005057815A1 (en) | 2005-12-03 | 2007-06-06 | Schaeffler Kg | shift fork |
DE102007047602A1 (en) | 2007-10-05 | 2009-04-09 | Schaeffler Kg | Shift fork with sliding shoes |
US20110179899A1 (en) * | 2009-10-29 | 2011-07-28 | Gm Global Technology Operations, Inc. | Shift fork |
-
2011
- 2011-09-27 DE DE102011083529A patent/DE102011083529A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10125450A1 (en) * | 2001-05-25 | 2002-12-05 | Getrag Getriebe Zahnrad | Operating unit for a synchronizer sleeve comprises a shift section and a fork which are made as a single component consisting or the same material, while the driver is attached to the unit thus produced |
DE10202651A1 (en) * | 2002-01-23 | 2003-07-31 | Koki Technik Stanz Und Feinsta | Transmission with shift rail and fork has shift rail which is round in cross section |
DE102005057815A1 (en) | 2005-12-03 | 2007-06-06 | Schaeffler Kg | shift fork |
DE102007047602A1 (en) | 2007-10-05 | 2009-04-09 | Schaeffler Kg | Shift fork with sliding shoes |
US20110179899A1 (en) * | 2009-10-29 | 2011-07-28 | Gm Global Technology Operations, Inc. | Shift fork |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014116175A1 (en) * | 2013-01-28 | 2014-07-31 | Scania Cv Ab | Gearbox with manoeuvring fork and vehicle including such a gearbox |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20150401 |