| F | SK | MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
| F16 | KL | ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL |
| F16H | UKL | GEARING |
|
| F16H 1/00 | HGR | Toothed gearings for conveying rotary motion (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion F16H 3/00) |
| F16H 1/02 | UGR1 | | . | without gears having orbital motion |
|
| F16H 1/04 | UGR2 | | . . | involving only two intermeshing members |
|
| F16H 1/06 | UGR3 | |
| F16H 1/08 | UGR4 | | . . . . | the members having helical, herring-bone, or like teeth |
|
| F16H 1/10 | UGR4 | | . . . . | one of the members being internally toothed |
|
| F16H 1/12 | UGR3 | | . . . | with non-parallel axes |
|
| F16H 1/14 | UGR4 | | . . . . | comprising conical gears only |
|
| F16H 1/16 | UGR4 | | . . . . | comprising worm and worm-wheel |
|
| F16H 1/18 | UGR4 | | . . . . | the members having helical, herring-bone, or like teeth (F16H 1/14 takes precedence) |
|
| F16H 1/20 | UGR2 | | . . | involving more than two intermeshing members |
|
| F16H 1/22 | UGR3 | | . . . | with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts |
|
| F16H 1/24 | UGR2 | | . . | involving gears essentially having intermeshing elements other than involute or cycloidal teeth (F16H 1/16 takes precedence) |
|
| F16H 1/26 | UGR2 | | . . | Special means compensating for misalignment of axes |
|
| F16H 1/28 | UGR1 | | . | with gears having orbital motion |
|
| F16H 1/30 | UGR2 | | . . | in which an orbital gear has an axis crossing the main axis of the gearing and has helical teeth or is a worm |
|
| F16H 1/32 | UGR2 | | . . | in which the central axis of the gearing lies inside the periphery of an orbital gear |
|
| F16H 1/34 | UGR2 | | . . | involving gears essentially having intermeshing elements other than involute or cycloidal teeth (in worm gearing F16H 1/30) |
|
| F16H 1/36 | UGR2 | | . . | with two central gears coupled by intermeshing orbital gears |
|
| F16H 1/46 | UGR2 | | . . | Systems consisting of a plurality of gear trains, each with orbital gears |
|
| F16H 1/48 | UGR2 | | . . | Special means compensating for misalignment of axes |
|
| F16H 3/00 | HGR | Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion (speed-changing or reversing mechanisms F16H 59/00 to F16H 63/00) |
| F16H 3/02 | UGR1 | | . | without gears having orbital motion |
|
| F16H 3/04 | UGR2 | | . . | with internally-toothed gears |
|
| F16H 3/06 | UGR2 | | . . | with worm and worm-wheel or gears essentially having helical or herring-bone teeth |
|
| F16H 3/08 | UGR2 | | . . | exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts |
|
| F16H 3/083 | UGR3 | | . . . | with radially acting and axially controlled clutching members, e.g. sliding keys [5] |
|
| F16H 3/085 | UGR3 | | . . . | with more than one output shaft [5] |
|
| F16H 3/087 | UGR3 | |
| F16H 3/089 | UGR4 | | . . . . | all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved [5] |
|
| F16H 3/091 | UGR4 | | . . . . | including a single countershaft [5] |
|
| F16H 3/093 | UGR4 | | . . . . | with two or more countershafts [5] |
|
| F16H 3/095 | UGR5 | | . . . . . | with means for ensuring an even distribution of torque between the countershafts [5] |
|
| F16H 3/097 | UGR5 | | . . . . . | the input and output shafts being aligned on the same axis [5] |
|
| F16H 3/10 | UGR3 | | . . . | with one or more one-way clutches as an essential feature |
|
| F16H 3/12 | UGR3 | | . . . | with means for synchronisation not incorporated in the clutches (synchronised clutches F16D 23/02) |
|
| F16H 3/14 | UGR3 | | . . . | Gearings for reversal only |
|
| F16H 3/16 | UGR2 | | . . | essentially with both gears that can be put out of gear and continuously-meshing gears that can be disengaged from their shafts |
|
| F16H 3/18 | UGR3 | | . . . | Gearings for reversal only |
|
| F16H 3/20 | UGR2 | | . . | exclusively or essentially using gears that can be moved out of gear |
|
| F16H 3/22 | UGR3 | | . . . | with gears shiftable only axially |
|
| F16H 3/24 | UGR4 | | . . . . | with driving and driven shafts coaxial |
|
| F16H 3/26 | UGR5 | | . . . . . | and two or more additional shafts |
|
| F16H 3/28 | UGR6 | | . . . . . . | an additional shaft being coaxial with the main shafts |
|
| F16H 3/30 | UGR4 | | . . . . | with driving and driven shafts not coaxial |
|
| F16H 3/32 | UGR5 | | . . . . . | and an additional shaft |
|
| F16H 3/34 | UGR3 | | . . . | with gears shiftable otherwise than only axially |
|
| F16H 3/36 | UGR3 | | . . . | with a single gear meshable with any of a set of coaxial gears of different diameters |
|
| F16H 3/38 | UGR3 | | . . . | with synchro-meshing |
|
| F16H 3/40 | UGR3 | | . . . | Gearings for reversal only |
|
| F16H 3/42 | UGR2 | | . . | with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable |
|
| F16H 3/44 | UGR1 | | . | using gears having orbital motion |
|
| F16H 3/46 | UGR2 | | . . | Gearings having only two central gears, connected by orbital gears (F16H 3/68 to F16H 3/78 take precedence) |
|
| F16H 3/48 | UGR3 | | . . . | with single orbital gears or pairs of rigidly-connected orbital gears |
|
| F16H 3/50 | UGR4 | | . . . . | comprising orbital conical gears |
|
| F16H 3/52 | UGR4 | | . . . . | comprising orbital spur gears |
|
| F16H 3/54 | UGR5 | | . . . . . | one of the central gears being internally toothed and the other externally toothed |
|
| F16H 3/56 | UGR5 | | . . . . . | both central gears being sun gears |
|
| F16H 3/58 | UGR3 | | . . . | with sets of orbital gears, each consisting of two or more intermeshing orbital gears |
|
| F16H 3/60 | UGR3 | | . . . | Gearings for reversal only |
|
| F16H 3/62 | UGR2 | |
| F16H 3/64 | UGR3 | | . . . | composed of a number of gear trains, the drive always passing through all the trains, each train having not more than one connection for driving another train |
|
| F16H 3/66 | UGR3 | | . . . | composed of a number of gear trains without drive passing from one train to another |
|
| F16H 3/68 | UGR2 | | . . | in which an orbital gear has an axis crossing the main axis of the gearing and has helical teeth or is a worm |
|
| F16H 3/70 | UGR2 | | . . | in which the central axis of the gearing lies inside the periphery of an orbital gear |
|
| F16H 3/72 | UGR2 | | . . | with a secondary drive, e.g. regulating motor, in order to vary speed continuously |
|
| F16H 3/74 | UGR2 | | . . | Complexes, not using actuatable speed-changing or regulating members, e.g. with gear ratio determined by free play of frictional or other forces |
|
| F16H 3/76 | UGR2 | | . . | with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable |
|
| F16H 3/78 | UGR2 | | . . | Special adaptation of synchronisation mechanisms to these gearings |
|
|
| F16H 7/00 | HGR | Gearings for conveying rotary motion by endless flexible members (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion F16H 9/00) |
| F16H 7/02 | UGR1 | | . | with belts; with V-belts |
|
| F16H 7/04 | UGR1 | |
| F16H 7/06 | UGR1 | |
| F16H 7/08 | UGR1 | | . | Means for varying tension of belts, ropes, or chains (pulleys of adjustable construction F16H 55/52) |
|
| F16H 7/10 | UGR2 | | . . | by adjusting the axis of a pulley |
|
| F16H 7/12 | UGR3 | |
| F16H 7/14 | UGR3 | | . . . | of a driving or driven pulley |
|
| F16H 7/16 | UGR4 | | . . . . | without adjusting the driving or driven shaft |
|
| F16H 7/18 | UGR1 | | . | Means for guiding or supporting belts, ropes, or chains (construction of pulleys F16H 55/36) |
|
| F16H 7/20 | UGR2 | | . . | Mountings for rollers or pulleys |
|
| F16H 7/22 | UGR1 | | . | Belt, rope, or chain shifters |
|
| F16H 7/24 | UGR1 | | . | Equipment for mounting belts, ropes, or chains |
|
| F16H 9/00 | HGR | Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members (control of change-speed or reversing-gearings conveying rotary motion F16H 59/00 to F16H 63/00) |
| F16H 9/02 | UGR1 | | . | without members having orbital motion |
|
| F16H 9/04 | UGR2 | | . . | using belts, V-belts, or ropes (with toothed belts F16H 9/24; pulleys of adjustable construction F16H 55/52) |
|
| F16H 9/06 | UGR3 | | . . . | engaging a stepped pulley |
|
| F16H 9/08 | UGR3 | | . . . | engaging a conical drum (F16H 9/12 takes precedence) |
|
| F16H 9/10 | UGR3 | | . . . | engaging a pulley provided with radially-actuatable elements carrying the belt |
|
| F16H 9/12 | UGR3 | | . . . | engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members |
|
| F16H 9/14 | UGR4 | | . . . . | using only one pulley built-up out of adjustable conical parts |
|
| F16H 9/16 | UGR4 | | . . . . | using two pulleys, both built-up out of adjustable conical parts |
|
| F16H 9/18 | UGR5 | | . . . . . | only one flange of each pulley being adjustable |
|
| F16H 9/20 | UGR5 | | . . . . . | both flanges of the pulleys being adjustable |
|
| F16H 9/22 | UGR3 | | . . . | specially adapted for ropes |
|
| F16H 9/24 | UGR2 | | . . | using chains, toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing (toothed belts F16G 1/28; V-belts in the form of links F16G 5/18; toothed V-belts F16G 5/20) |
|
| F16H 9/26 | UGR1 | | . | with members having orbital motion |
|
|
| F16H 13/00 | HGR | Gearing for conveying rotary motion with constant gear ratio by friction between rotary members (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion F16H 15/00) |
| F16H 13/02 | UGR1 | | . | without members having orbital motion |
|
| F16H 13/04 | UGR2 | | . . | with balls or with rollers acting in a similar manner |
|
| F16H 13/06 | UGR1 | | . | with members having orbital motion |
|
| F16H 13/08 | UGR2 | | . . | with balls or with rollers acting in a similar manner |
|
| F16H 13/10 | UGR1 | | . | Means for influencing the pressure between the members |
|
| F16H 13/12 | UGR2 | |
| F16H 13/14 | UGR2 | | . . | for automatically varying the pressure mechanically |
|
| F16H 15/00 | HGR | Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members (control of change-speed or reversing-gearings conveying rotary motion F16H 59/00 to F16H 63/00) |
| F16H 15/01 | UGR1 | | . | characterised by the use of a magnetisable powder or liquid as friction medium between the rotary members [2] |
|
| F16H 15/02 | UGR1 | | . | without members having orbital motion |
|
| F16H 15/04 | UGR2 | | . . | Gearings providing a continuous range of gear ratios |
|
| F16H 15/06 | UGR3 | | . . . | in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B |
|
| F16H 15/08 | UGR4 | | . . . . | in which the member B is a disc with a flat or approximately-flat friction surface |
|
| F16H 15/10 | UGR5 | | . . . . . | in which the axes of the two members cross or intersect |
|
| F16H 15/12 | UGR6 | | . . . . . . | in which one or each member is duplicated, e.g. for obtaining better transmission, for lessening the reaction forces on the bearings |
|
| F16H 15/14 | UGR5 | | . . . . . | in which the axes of the members are parallel or approximately parallel |
|
| F16H 15/16 | UGR4 | | . . . . | in which the member B has a conical friction surface |
|
| F16H 15/18 | UGR5 | |
| F16H 15/20 | UGR6 | | . . . . . . | co-operating with the outer rim of the member A, which is perpendicular or nearly perpendicular to the friction surface of the member B |
|
| F16H 15/22 | UGR6 | | . . . . . . | the axes of the members being parallel or approximately parallel |
|
| F16H 15/24 | UGR5 | |
| F16H 15/26 | UGR4 | | . . . . | in which the member B has a spherical friction surface centered on its axis of revolution |
|
| F16H 15/28 | UGR5 | | . . . . . | with external friction surface |
|
| F16H 15/30 | UGR5 | | . . . . . | with internal friction surface |
|
| F16H 15/32 | UGR4 | | . . . . | in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line |
|
| F16H 15/34 | UGR5 | | . . . . . | with convex friction surface |
|
| F16H 15/36 | UGR5 | | . . . . . | with concave friction surface, e.g. a hollow toroid surface |
|
| F16H 15/38 | UGR6 | | . . . . . . | with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces |
|
| F16H 15/40 | UGR3 | | . . . | in which two members co-operate by means of balls, or rollers of uniform effective diameter, not mounted on shafts |
|
| F16H 15/42 | UGR3 | | . . . | in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first-mentioned members |
|
| F16H 15/44 | UGR3 | | . . . | in which two members of non-uniform effective diameter directly co-operate with one another |
|
| F16H 15/46 | UGR2 | | . . | Gearings providing a discontinuous or stepped range of gear ratios |
|
| F16H 15/48 | UGR1 | | . | with members having orbital motion |
|
| F16H 15/50 | UGR2 | | . . | Gearings providing a continuous range of gear ratios |
|
| F16H 15/52 | UGR3 | | . . . | in which a member of uniform effective diameter mounted on a shaft may co-operate with different parts of another member |
|
| F16H 15/54 | UGR3 | | . . . | in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first-mentioned members |
|
| F16H 15/56 | UGR2 | | . . | Gearings providing a discontinuous or stepped range of gear ratios |
|
| F16H 19/00 | ZWE |
|
| F16H 19/00 | HGR | Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion (with intermittently-driving members F16H 27/00 to F16H 31/00; rope or like tackle for lifting or haulage B66D 3/00) |
| F16H 19/02 | UGR1 | | . | for interconverting rotary motion and reciprocating motion |
|
| F16H 19/04 | UGR2 | |
| F16H 19/06 | UGR2 | | . . | comprising an endless flexible member |
|
| F16H 19/08 | UGR1 | | . | for interconverting rotary motion and oscillating motion |
|
|
| F16H 21/00 | HGR | Gearings comprising primarily only links or levers, with or without slides |
| F16H 21/02 | UGR1 | | . | the movements of two or more independently-moving members being combined into a single movement |
|
| F16H 21/04 | UGR1 | | . | Guiding mechanisms, e.g. for straight-line guidance (for drawing-machines B43L) |
|
| F16H 21/06 | UGR1 | | . | which can be made ineffective when desired |
|
| F16H 21/08 | UGR2 | | . . | by pushing a reciprocating rod out of its operative position |
|
| F16H 21/10 | UGR1 | | . | all movement being in, or parallel to, a single plane |
|
| F16H 21/12 | UGR2 | | . . | for conveying rotary motion |
|
| F16H 21/14 | UGR3 | | . . . | by means of cranks, eccentrics, or like members fixed to one rotary member and guided along tracks on the other |
|
| F16H 21/16 | UGR2 | | . . | for interconverting rotary motion and reciprocating motion |
|
| F16H 21/18 | UGR3 | | . . . | Crank gearings; Eccentric gearings |
|
| F16H 21/20 | UGR4 | | . . . . | with adjustment of throw (adjustable cranks or eccentrics F16C 3/28; adjustable connecting-rods F16C 7/06) |
|
| F16H 21/22 | UGR4 | | . . . . | with one connecting-rod and one guided slide to each crank or eccentric |
|
| F16H 21/24 | UGR5 | | . . . . . | without further links or guides |
|
| F16H 21/26 | UGR5 | | . . . . . | with toggle action |
|
| F16H 21/28 | UGR5 | | . . . . . | with cams or additional guides |
|
| F16H 21/30 | UGR5 | | . . . . . | with members having rolling contact |
|
| F16H 21/32 | UGR5 | | . . . . . | with additional members comprising only pivoted links or arms |
|
| F16H 21/34 | UGR4 | | . . . . | with two or more connecting-rods to each crank or eccentric |
|
| F16H 21/36 | UGR4 | | . . . . | without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and- crank motion |
|
| F16H 21/38 | UGR4 | | . . . . | with means for temporary energy accumulation, e.g. to overcome dead-centre positions |
|
| F16H 21/40 | UGR2 | | . . | for interconverting rotary motion and oscillating motion |
|
| F16H 21/42 | UGR3 | | . . . | with adjustable throw |
|
| F16H 21/44 | UGR2 | | . . | for conveying or interconverting oscillating or reciprocating motions |
|
| F16H 21/46 | UGR1 | | . | with movements in three dimensions |
|
| F16H 21/48 | UGR2 | | . . | for conveying rotary motion |
|
| F16H 21/50 | UGR2 | | . . | for interconverting rotary motion and reciprocating motion (F16H 23/00 takes precedence) |
|
| F16H 21/52 | UGR2 | | . . | for interconverting rotary motion and oscillating motion |
|
| F16H 21/54 | UGR2 | | . . | for conveying or interconverting oscillating or reciprocating motions |
|
| F16H 23/00 | HGR | Wobble-plate gearings; Oblique-crank gearings |
| F16H 23/02 | UGR1 | | . | with adjustment of throw by changing the position of the wobble-member (F16H 29/04 , F16H 33/10 take precedence) |
|
| F16H 23/04 | UGR1 | | . | with non-rotary wobble-members |
|
| F16H 23/06 | UGR2 | | . . | with sliding members hinged to reciprocating members |
|
| F16H 23/08 | UGR2 | | . . | connected to reciprocating members by connecting-rods |
|
| F16H 23/10 | UGR1 | | . | with rotary wobble-plates with plane surfaces |
|
| F16H 25/00 | HGR | Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms |
| F16H 25/02 | UGR1 | | . | the movements of two or more independently-moving members being combined into a single movement |
|
| F16H 25/04 | UGR1 | | . | for conveying rotary motion |
|
| F16H 25/06 | UGR2 | | . . | with intermediate members guided along tracks on both rotary members |
|
| F16H 25/08 | UGR1 | | . | for interconverting rotary motion and reciprocating motion (F16H 23/00 takes precedence) |
|
| F16H 25/10 | UGR2 | | . . | with adjustable throw (adjustable cams F16H 53/04) |
|
| F16H 25/12 | UGR2 | | . . | with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal (screw mechanisms without automatic reversal F16H 25/20) |
|
| F16H 25/14 | UGR2 | | . . | with reciprocation perpendicular to the axis of rotation (F16H 21/36 takes precedence) |
|
| F16H 25/16 | UGR1 | | . | for interconverting rotary motion and oscillating motion |
|
| F16H 25/18 | UGR1 | | . | for conveying or interconverting oscillating or reciprocating motions |
|
| F16H 25/20 | UGR2 | | . . | Screw mechanisms (with automatic reversal F16H 25/12) |
|
| F16H 25/22 | UGR3 | | . . . | with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members |
|
| F16H 25/24 | UGR3 | | . . . | Elements essential to such mechanisms, e.g. screws, nuts (F16H 25/22 takes precedence) |
|
|
| F16H 27/00 | HGR | Step-by-step mechanisms without freewheel members, e.g. Geneva drives (rotary gearings with cyclically-varying velocity ratio F16H 35/02; impulse couplings F16D 5/00; clockwork escapements G04B 15/00) |
| F16H 27/02 | UGR1 | | . | with at least one reciprocating or oscillating transmission member |
|
| F16H 27/04 | UGR1 | | . | for converting continuous rotation into a step-by-step rotary movement |
|
| F16H 27/06 | UGR2 | | . . | Mechanisms with driving pins in driven slots, e.g. Geneva drives |
|
| F16H 27/08 | UGR2 | | . . | with driving toothed gears with interrupted toothing |
|
| F16H 27/10 | UGR2 | | . . | obtained by means of disengageable transmission members, combined or not combined with mechanisms according to group F16H 27/06 or F16H 27/08 |
|
| F16H 29/00 | HGR | Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action (freewheels F16D 41/00) |
| F16H 29/02 | UGR1 | | . | between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts (F16H 29/20 , F16H 29/22 take precedence) |
|
| F16H 29/04 | UGR2 | | . . | in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts |
|
| F16H 29/06 | UGR3 | | . . . | with concentric shafts, an annular intermediate member moving around and being supported on an adjustable crank or eccentric |
|
| F16H 29/08 | UGR2 | | . . | in which the transmission ratio is changed by adjustment of the path of movement, the location of the pivot, or the effective length, of an oscillating connecting member |
|
| F16H 29/10 | UGR2 | | . . | in which the transmission ratio is changed by directly acting on the intermittently driving members |
|
| F16H 29/12 | UGR1 | |
| F16H 29/14 | UGR2 | | . . | in which the transmission ratio is changed by adjustment of an otherwise stationary guide member for the intermittently-driving members |
|
| F16H 29/16 | UGR2 | | . . | in which the transmission ratio is changed by adjustment of the distance between the axes of the rotary members |
|
| F16H 29/18 | UGR3 | | . . . | in which the intermittently-driving members slide along approximately radial guides while rotating with one of the rotary members |
|
| F16H 29/20 | UGR1 | | . | the intermittently-acting members being shaped as worms, screws, or racks |
|
| F16H 29/22 | UGR1 | | . | with automatic speed change |
|
| F16H 31/00 | HGR | Other gearings with freewheeling members or other intermittently-driving members (F16H 21/00 , F16H 23/00 , F16H 25/00 take precedence; gearings involving the use of automatic changing-mechanisms, e.g. cyclically-actuated reversal gearings, see the appropriate groups) |
| F16H 33/00 | ZWE |
|
| F16H 33/00 | HGR | Gearings based on repeated accumulation and delivery of energy |
| F16H 33/02 | UGR1 | | . | Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels |
|
| F16H 33/04 | UGR2 | | . . | Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought |
|
| F16H 33/06 | UGR3 | | . . . | based essentially on spring action (ratchet slip couplings F16D 7/04) |
|
| F16H 33/08 | UGR3 | | . . . | based essentially on inertia |
|
| F16H 33/10 | UGR4 | | . . . . | with gyroscopic action, e.g. comprising wobble-plates, oblique cranks |
|
| F16H 33/12 | UGR4 | | . . . . | with a driving member connected differentially with both a driven member and an oscillatory member with large resistance to movement, e.g. Constantinesco gearing |
|
| F16H 33/14 | UGR4 | | . . . . | having orbital members influenced by regulating masses |
|
| F16H 33/16 | UGR5 | | . . . . . | which have their own free motion, or consist of fluid |
|
| F16H 33/18 | UGR5 | | . . . . . | of which the motion is constrained |
|
| F16H 33/20 | UGR1 | | . | for interconversion, based essentially on inertia, of rotary motion and reciprocating or oscillating motion |
|
| F16H 35/00 | HGR | Gearings or mechanisms with other special functional features |
| F16H 35/02 | UGR1 | | . | for conveying rotary motion with cyclically-varying velocity ratio (speed-changing mechanisms operating cyclically, see the appropriate groups) |
|
| F16H 35/06 | UGR1 | | . | Gearings designed to allow relative movement between supports thereof without ill effects (F16H 1/26 , F16H 1/48 take precedence) |
|
| F16H 35/08 | UGR1 | | . | for adjustment of members on moving parts from a stationary place |
|
| F16H 35/10 | UGR1 | | . | Arrangements or devices for absorbing overload or preventing damage by overload (couplings for transmitting rotation F16D) |
|
| F16H 35/12 | UGR1 | | . | Transmitting mechanisms with delayed effect (vibration- or shock-dampers in general F16F) |
|
| F16H 35/14 | UGR1 | | . | Mechanisms with only two stable positions, e.g. acting at definite angular positions |
|
| F16H 35/16 | UGR1 | | . | Mechanisms for movements or movement relations conforming to mathematical formulae (devices in which computing operations are performed mechanically G06G 3/00) |
|
| F16H 35/18 | UGR1 | | . | Turning devices for rotatable members, e.g. shafts (starting devices for internal-combustion engines F02N) |
|
| F16H 37/00 | HGR | Combinations of mechanical gearings, not hereinbefore provided for (applications of underdrives or overdrives in motor vehicles, combinations with differential gearings in motor vehicles B60K) |
| F16H 37/02 | UGR1 | | . | comprising essentially only toothed or friction gearings |
|
| F16H 37/04 | UGR2 | | . . | Combinations of toothed gearings only (F16H 37/06 takes precedence) |
|
| F16H 37/06 | UGR2 | | . . | with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts |
|
| F16H 37/08 | UGR3 | | . . . | with differential gearing |
|
| F16H 37/10 | UGR4 | | . . . . | at both ends of intermediate shafts |
|
| F16H 37/12 | UGR1 | | . | Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these three types (F16H 21/14 , F16H 21/28 , F16H 21/30 take precedence; toothed or friction gearing or cam gearing, with only an additional lever or link, see the appropriate group for the main gearing) |
|
| F16H 37/14 | UGR2 | | . . | the movements of two or more independently-moving members being combined into a single movement |
|
| F16H 37/16 | UGR2 | | . . | with a driving or driven member which both rotates or oscillates on its axis and reciprocates |
|
|
| F16H 39/00 | HGR | Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution (control of exclusively fluid gearing F16H 61/38; application to lifting or pushing equipment B66F) [5] |
| F16H 39/01 | UGR1 | | . | Pneumatic gearing; Gearing working with subatmospheric pressure (pneumatic hammers B25D 9/00) [2] |
|
| F16H 39/02 | UGR1 | | . | with liquid motors at a distance from liquid pumps |
|
| F16H 39/04 | UGR1 | | . | with liquid motor and pump combined in one unit |
|
| F16H 39/06 | UGR2 | | . . | pump and motor being of the same type |
|
| F16H 39/08 | UGR3 | | . . . | each with one main shaft and provided with pistons reciprocating in cylinders |
|
| F16H 39/10 | UGR4 | | . . . . | with cylinders arranged around, and parallel or approximately parallel to, the main axis of the gearing |
|
| F16H 39/12 | UGR5 | | . . . . . | with stationary cylinders |
|
| F16H 39/14 | UGR5 | | . . . . . | with cylinders carried in rotary cylinder blocks or cylinder-bearing members |
|
| F16H 39/16 | UGR4 | | . . . . | with cylinders arranged perpendicular to the main axis of the gearing |
|
| F16H 39/18 | UGR5 | | . . . . . | the connections of the pistons being at the outer ends of the cylinders |
|
| F16H 39/20 | UGR5 | | . . . . . | the connections of the pistons being at the inner ends of the cylinders |
|
| F16H 39/22 | UGR3 | | . . . | with liquid chambers shaped as bodies of revolution concentric with the main axis of the gearing |
|
| F16H 39/24 | UGR4 | | . . . . | with rotary displacement members, e.g. provided with axially or radially movable vanes passing movable sealing members |
|
| F16H 39/26 | UGR3 | | . . . | with liquid chambers not shaped as bodies of revolution or shaped as bodies of revolution eccentric to the main axis of the gearing |
|
| F16H 39/28 | UGR4 | | . . . . | with liquid chambers formed in rotary members |
|
| F16H 39/30 | UGR4 | | . . . . | with liquid chambers formed in stationary members |
|
| F16H 39/32 | UGR5 | | . . . . . | with sliding vanes carried by the rotor |
|
| F16H 39/34 | UGR3 | | . . . | in which a rotor on one shaft co-operates with a rotor on another shaft |
|
| F16H 39/36 | UGR4 | |
| F16H 39/38 | UGR4 | | . . . . | Displacement screw-pump type |
|
| F16H 39/40 | UGR3 | | . . . | Hydraulic differential gearings, e.g. having a rotary input housing with interconnected liquid chambers for both outputs |
|
| F16H 39/42 | UGR2 | | . . | pump and motor being of different types |
|
| F16H 41/00 | HGR | Rotary fluid gearing of the hydrokinetic type (control of exclusively fluid gearing F16H 61/38) [5] |
| F16H 41/02 | UGR1 | | . | with pump and turbine connected by conduits or ducts |
|
| F16H 41/04 | UGR1 | | . | Combined pump-turbine units |
|
| F16H 41/22 | UGR2 | | . . | Gearing systems consisting of a plurality of hydrokinetic units operating alternatively, e.g. made effective or ineffective by filling or emptying or by mechanical clutches |
|
| F16H 41/24 | UGR1 | |
| F16H 41/26 | UGR2 | | . . | Shape of runner blades or channels with respect to function |
|
| F16H 41/28 | UGR2 | | . . | with respect to manufacture, e.g. blade attachment |
|
| F16H 41/30 | UGR2 | | . . | relating to venting, lubrication, cooling, circulation of the cooling medium |
|
| F16H 41/32 | UGR1 | | . | Selection of working fluids (chemical aspects, see the relevant classes) |
|
| F16H 43/00 | HGR | Other fluid gearing, e.g. with oscillating input or output [2] |
| F16H 43/02 | UGR1 | | . | Fluid gearing actuated by pressure waves [2] |
|
| F16H 45/00 | HGR | Combinations of fluid gearings for conveying rotary motion with couplings or clutches (F16H 41/22 takes precedence; conjoint control of clutch and gearing B60K 41/22) [2] |
| F16H 45/02 | UGR1 | | . | with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches F16H 61/14) |
|
| F16H 47/00 | HGR | Combinations of mechanical gearing with fluid clutches or fluid gearing (conjoint control of clutch and gearing B60K 41/22) [2] |
| F16H 47/02 | UGR1 | | . | the fluid gearing being of the volumetric type |
|
| F16H 47/04 | UGR2 | | . . | the mechanical gearing being of the type with members having orbital motion |
|
| F16H 47/06 | UGR1 | | . | the fluid gearing being of the hydrokinetic type |
|
| F16H 47/07 | UGR2 | | . . | using two or more power-transmitting fluid circuits (F16H 47/10 takes precedence) [2] |
|
| F16H 47/08 | UGR2 | | . . | the mechanical gearing being of the type with members having orbital motion |
|
| F16H 47/10 | UGR3 | | . . . | using two or more power-transmitting fluid circuits [2] |
|
| F16H 47/12 | UGR3 | | . . . | the members with orbital motion having vanes interacting with the fluid [2] |
|
| F16H 48/00 | ZWE |
|
| F16H 48/00 | HGR | Differential gearings [6] |
| F16H 48/02 | UGR1 | | . | Transfer gears for influencing drive between outputs [6] |
|
| F16H 48/04 | UGR2 | | . . | having unequal torque transfer between two outputs [6] |
|
| F16H 48/06 | UGR1 | | . | with gears having orbital motion [6] |
|
| F16H 48/08 | UGR2 | | . . | with orbital conical gears [6] |
|
| F16H 48/10 | UGR2 | | . . | with orbital spur gears [6] |
|
| F16H 48/12 | UGR1 | | . | without gears having orbital motion [6] |
|
| F16H 48/14 | UGR2 | |
| F16H 48/16 | UGR2 | |
| F16H 48/18 | UGR2 | | . . | with fluid gearing [6] |
|
| F16H 48/20 | UGR1 | | . | Arrangements for suppressing or influencing the differential action, e.g. locking devices [6] |
|
| F16H 48/22 | UGR2 | | . . | using friction clutches or brakes [6] |
|
| F16H 48/24 | UGR2 | | . . | using positive clutches or brakes [6] |
|
| F16H 48/26 | UGR2 | | . . | using fluid action, e.g. viscous clutches [6] |
|
| F16H 48/28 | UGR2 | | . . | using self-locking gears [6] |
|
| F16H 48/30 | UGR2 | | . . | using externally-actuatable locking devices [6] |
|
| F16H 49/00 | HGR | Other gearing |
|
| F16H 51/00 | HGR | Levers (manipulating levers G05G) |
| F16H 51/02 | UGR1 | |
| F16H 53/00 | HGR | Cams; Non-rotary cams; Cam-followers, e.g. rollers (cams specially adapted for reciprocating-piston liquid engines F03C 1/30) |
| F16H 53/02 | UGR1 | | . | Single-track cams for single-revolution cycles; Camshafts with such cams |
|
| F16H 53/04 | UGR2 | |
| F16H 53/06 | UGR1 | |
| F16H 53/08 | UGR1 | | . | Multi-track cams, e.g. for cycles consisting of several revolutions; Cam-followers specially adapted for such cams |
|
| F16H 55/00 | HGR | Elements with teeth or friction surfaces for conveying motion; Worms; Pulleys; Sheaves (pulley-blocks for lifting or hauling appliances B66D 3/04) [4] |
| F16H 55/02 | UGR1 | |
| F16H 55/06 | UGR2 | | . . | Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties [3] |
|
| F16H 55/08 | UGR2 | |
| F16H 55/10 | UGR2 | | . . | Constructively simple tooth shapes, e.g. shaped as pins, as balls [3] |
|
| F16H 55/12 | UGR2 | | . . | with body or rim assembled out of detachable parts [3] |
|
| F16H 55/14 | UGR2 | | . . | Construction providing resilience or vibration-damping (F16H 55/06 takes precedence; resilient coupling of wheel or wheel-rim with shaft F16D 3/50 , F16D 3/80) [3] |
|
| F16H 55/16 | UGR3 | | . . . | relating to teeth only [3] |
|
| F16H 55/17 | UGR2 | |
| F16H 55/18 | UGR3 | | . . . | Special devices for taking-up backlash |
|
| F16H 55/20 | UGR4 | |
| F16H 55/22 | UGR2 | | . . | for transmissions with crossing shafts, especially worms, worm-gears (bevel gears, crown wheels, helical gears F16H 55/17) |
|
| F16H 55/24 | UGR3 | | . . . | Special devices for taking up backlash |
|
| F16H 55/26 | UGR2 | |
| F16H 55/28 | UGR3 | | . . . | Special devices for taking up backlash |
|
| F16H 55/30 | UGR2 | | . . | Chain wheels (specially adapted for cycles B62M) |
|
| F16H 55/32 | UGR1 | |
| F16H 55/34 | UGR2 | | . . | Non-adjustable friction discs |
|
| F16H 55/36 | UGR2 | | . . | Pulleys (with features essential for adjustment F16H 55/52) |
|
| F16H 55/38 | UGR3 | | . . . | Means or measures for increasing adhesion (in general F16D 69/00) |
|
| F16H 55/40 | UGR3 | |
| F16H 55/42 | UGR3 | |
| F16H 55/44 | UGR3 | |
| F16H 55/46 | UGR3 | |
| F16H 55/48 | UGR3 | |
| F16H 55/49 | UGR3 | | . . . | Features essential to V-belt pulleys [2] |
|
| F16H 55/50 | UGR3 | | . . . | Features essential to rope pulleys |
|
| F16H 55/52 | UGR2 | | . . | Pulleys or friction discs of adjustable construction |
|
| F16H 55/54 | UGR3 | | . . . | of which the bearing parts are radially adjustable |
|
| F16H 55/56 | UGR3 | | . . . | of which the bearing parts are relatively axially adjustable |
|
| F16H 57/00 | HGR | General details of gearing |
| F16H 57/02 | UGR1 | | . | Gear-boxes; Mounting gearing therein |
|
| F16H 57/04 | UGR1 | | . | Features relating to lubrication or cooling |
|
| F16H 57/05 | UGR2 | |
| F16H 57/08 | UGR1 | | . | of gearings with members having orbital motion |
|
| F16H 57/10 | UGR2 | |
| F16H 57/12 | UGR1 | | . | Arrangements for adjusting or for taking-up backlash not provided for elsewhere [2] |
|
|
| F16H 59/00 | HGR | Control inputs to change-speed- or reversing-gearings for conveying rotary motion [5] |
| F16H 59/02 | UGR1 | |
| F16H 59/04 | UGR2 | | . . | Ratio selector apparatus [5] |
|
| F16H 59/06 | UGR3 | | . . . | the ratio being infinitely variable [5] |
|
| F16H 59/08 | UGR2 | | . . | Range selector apparatus [5] |
|
| F16H 59/10 | UGR3 | | . . . | comprising levers [5] |
|
| F16H 59/12 | UGR3 | | . . . | comprising push button devices [5] |
|
| F16H 59/14 | UGR1 | | . | Inputs being a function of torque or torque demand [5] |
|
| F16H 59/16 | UGR2 | | . . | Dynamometric measurement of torque [5] |
|
| F16H 59/18 | UGR2 | | . . | dependent on the position of the accelerator pedal [5] |
|
| F16H 59/20 | UGR3 | |
| F16H 59/22 | UGR3 | |
| F16H 59/24 | UGR2 | | . . | dependent on the throttle opening [5] |
|
| F16H 59/26 | UGR2 | | . . | dependent on pressure [5] |
|
| F16H 59/28 | UGR3 | | . . . | Gasifier pressure in gas turbines [5] |
|
| F16H 59/30 | UGR3 | | . . . | Intake manifold vacuum [5] |
|
| F16H 59/32 | UGR3 | | . . . | Supercharger pressure in internal combustion engines [5] |
|
| F16H 59/34 | UGR2 | | . . | dependent on fuel feed [5] |
|
| F16H 59/36 | UGR1 | | . | Inputs being a function of speed [5] |
|
| F16H 59/38 | UGR2 | | . . | of gearing elements [5] |
|
| F16H 59/40 | UGR3 | | . . . | Output shaft speed [5] |
|
| F16H 59/42 | UGR3 | | . . . | Input shaft speed [5] |
|
| F16H 59/44 | UGR2 | | . . | dependent on machine speed (F16H 59/46 takes precedence) [5] |
|
| F16H 59/46 | UGR2 | | . . | dependent on a comparison between speeds [5] |
|
| F16H 59/48 | UGR1 | | . | Inputs being a function of acceleration [5] |
|
| F16H 59/50 | UGR1 | | . | Inputs being a function of the status of the machine, e.g. position of doors or safety belts [5] |
|
| F16H 59/52 | UGR2 | | . . | dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus [5] |
|
| F16H 59/54 | UGR2 | | . . | dependent on signals from the brakes, e.g. parking brakes [5] |
|
| F16H 59/56 | UGR2 | | . . | dependent on signals from the main clutch [5] |
|
| F16H 59/58 | UGR2 | | . . | dependent on signals from the steering [5] |
|
| F16H 59/60 | UGR1 | | . | Inputs being a function of ambient conditions [5] |
|
| F16H 59/62 | UGR2 | | . . | Atmospheric pressure [5] |
|
| F16H 59/64 | UGR2 | | . . | Atmospheric temperature [5] |
|
| F16H 59/66 | UGR2 | | . . | Road conditions, e.g. slope, slippery [5] |
|
| F16H 59/68 | UGR1 | | . | Inputs being a function of gearing status [5] |
|
| F16H 59/70 | UGR2 | | . . | dependent on the ratio established [5] |
|
| F16H 59/72 | UGR2 | | . . | dependent on oil characteristics, e.g. temperature, viscosity [5] |
|
| F16H 59/74 | UGR1 | | . | Inputs being a function of engine parameters (F16H 59/14 takes precedence) [5] |
|
| F16H 59/76 | UGR2 | | . . | Number of cylinders operating [5] |
|
| F16H 59/78 | UGR2 | |
| F16H 61/00 | HGR | Control functions within change-speed- or reversing-gearings for conveying rotary motion [5] |
| F16H 61/02 | UGR1 | | . | characterised by the signals used [5] |
|
| F16H 61/04 | UGR1 | | . | Smoothing ratio shift [5] |
|
| F16H 61/06 | UGR2 | | . . | by controlling rate of change of fluid pressure [5] |
|
| F16H 61/08 | UGR2 | |
| F16H 61/10 | UGR1 | | . | Regulating shift hysteresis [5] |
|
| F16H 61/12 | UGR1 | | . | Detecting malfunction or potential malfunction, e.g. fail safe [5] |
|
| F16H 61/14 | UGR1 | | . | Control of torque converter lock-up clutches [5] |
|
| F16H 61/16 | UGR1 | | . | Inhibiting shift during unfavourable conditions (F16H 61/18 takes precedence) [5] |
|
| F16H 61/18 | UGR1 | | . | Preventing unintentional or unsafe shift (constructional features of the final output mechanisms F16H 63/30) [5] |
|
| F16H 61/20 | UGR1 | | . | Preventing gear creeping [5] |
|
| F16H 61/21 | UGR1 | | . | Providing engine brake control [7] |
|
| F16H 61/22 | UGR1 | |
| F16H 61/24 | UGR1 | | . | Providing feel, e.g. to enable selection [5] |
|
| F16H 61/26 | UGR1 | | . | Generation or transmission of movements for final actuating mechanisms [5] |
|
| F16H 61/28 | UGR2 | | . . | with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted [5] |
|
| F16H 61/30 | UGR3 | | . . . | Hydraulic motors therefor [5] |
|
| F16H 61/32 | UGR3 | | . . . | Electric motors therefor [5] |
|
| F16H 61/34 | UGR2 | | . . | comprising two mechanisms, one for the preselection movement, and one for the shifting movement (F16H 61/36 takes precedence) [5] |
|
| F16H 61/36 | UGR2 | | . . | with at least one movement being transmitted by a cable [5] |
|
| F16H 61/38 | UGR1 | | . | Control of exclusively fluid gearing [5] |
|
| F16H 61/40 | UGR2 | |
| F16H 61/42 | UGR3 | | . . . | involving adjustment of a pump or motor with adjustable output or capacity [5] |
|
| F16H 61/44 | UGR3 | | . . . | by varying the number of pump or motor units in operation [5] |
|
| F16H 61/46 | UGR3 | | . . . | Automatic regulation in accordance with output requirements (servomotors G05B) [5] |
|
| F16H 61/48 | UGR2 | |
| F16H 61/50 | UGR3 | | . . . | controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit [5] |
|
| F16H 61/52 | UGR4 | | . . . . | by altering the position of blades [5] |
|
| F16H 61/54 | UGR5 | | . . . . . | by means of axially-shiftable blade runners [5] |
|
| F16H 61/56 | UGR5 | | . . . . . | to change the blade angle [5] |
|
| F16H 61/58 | UGR4 | | . . . . | by change of the mechanical connection of, or between, the runners [5] |
|
| F16H 61/60 | UGR5 | | . . . . . | exclusively by the use of freewheel clutches [5] |
|
| F16H 61/62 | UGR5 | | . . . . . | involving use of a speed-changing gearing or of a clutch in the connection between runners (F16H 45/02 , F16H 61/60 take precedence) [5] |
|
| F16H 61/64 | UGR3 | | . . . | controlled by changing the amount of liquid in the working circuit [5] |
|
| F16H 63/00 | HGR | Control outputs to change-speed- or reversing-gearings for conveying rotary motion [5] |
| F16H 63/02 | UGR1 | | . | Final output mechanisms therefor; Actuating means for the final output mechanisms [5] |
|
| F16H 63/04 | UGR2 | | . . | a single final output mechanism being moved by a single final actuating mechanism [5] |
|
| F16H 63/06 | UGR3 | | . . . | the final output mechanism having an indefinite number of positions [5] |
|
| F16H 63/08 | UGR2 | | . . | Multiple final output mechanisms being moved by a single common final actuating mechanism [5] |
|
| F16H 63/10 | UGR3 | | . . . | the final actuating mechanism having a series of independent ways of movement, each way of movement being associated with only one final output mechanism [5] |
|
| F16H 63/12 | UGR4 | | . . . . | two or more ways of movement occurring simultaneously [5] |
|
| F16H 63/14 | UGR3 | | . . . | the final output mechanisms being successively actuated by repeated movement of the final actuating mechanism [5] |
|
| F16H 63/16 | UGR3 | | . . . | the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism [5] |
|
| F16H 63/18 | UGR4 | | . . . . | the final actuating mechanism comprising cams [5] |
|
| F16H 63/20 | UGR3 | | . . . | with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate [5] |
|
| F16H 63/22 | UGR4 | | . . . . | the final output mechanisms being simultaneously moved by the final actuating mechanism [5] |
|
| F16H 63/24 | UGR2 | | . . | each of the final output mechanisms being moved by only one of the various final actuating mechanisms [5] |
|
| F16H 63/26 | UGR3 | | . . . | some of the movements of the final output mechanisms being caused by another final output mechanism [5] |
|
| F16H 63/28 | UGR2 | | . . | two or more final actuating mechanisms moving the same final output mechanism [5] |
|
| F16H 63/30 | UGR2 | | . . | Constructional features of the final output mechanisms [5] |
|
| F16H 63/32 | UGR3 | | . . . | Gear shifter yokes [5] |
|
| F16H 63/34 | UGR3 | | . . . | Locking or disabling mechanisms [5] |
|
| F16H 63/36 | UGR4 | | . . . . | Interlocking devices [5] |
|
| F16H 63/38 | UGR3 | |
| F16H 63/40 | UGR1 | | . | comprising signals other than signals for actuating the final output mechanisms [5] |
|
| F16H 63/42 | UGR2 | | . . | Ratio indicator devices [5] |
|
| F16H 63/44 | UGR2 | | . . | Signals to the control unit of auxiliary gearing [5] |
|
| F16H 63/46 | UGR2 | | . . | Signals to a clutch outside the gearbox [5] |
|
| F16H 63/48 | UGR2 | | . . | Signals to a parking brake [5] |
|
| F16H 63/50 | UGR2 | | . . | Signals to an engine or motor [7] |
|
|
| F16H 101/00 | HGR | Continuously variable gearing [7] |
| F16H 101/02 | UGR1 | | . | with endless flexible member [7] |
|
| F16H 101/04 | UGR1 | |
| F16H 103/00 | HGR | Stepped gearing [7] |
| F16H 103/02 | UGR1 | | . | with interruption of drive [7] |
|
| F16H 103/10 | UGR1 | | . | without interruption of drive, e.g. powershift [7] |
|
| F16H 103/12 | UGR2 | | . . | with orbital gears [7] |
|
| F16H 103/14 | UGR2 | | . . | with two inputs, e.g. selection of one of two torque-flow paths by clutch [7] |
|
| F16H 105/00 | HGR | Change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range- or overdrive-type gearing arrangements [7] |
| F16H 107/00 | HGR | Differential or balance gearing [7] |
| F16H 109/00 | HGR | Changing the number of driven wheels [7] |