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IPC 7
 
F16H-F16H00724
  F16H 9/00 - F16H 21/54  

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING


F 16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL


F 16 HGEARING


Notes

(1)In this subclass, sets of rigidly-connected members are regarded as single members.

(2)In this subclass, the following terms or expressions are used ith the meanings indicated:

 "toothed gearing" includes worm gearing and other gearing involving at least one wheel or sector provided with teeth or the equivalent, except gearing with chains or toothed belts, which is treated as friction gearing;

 "conveying motion" includes transmitting energy, and means that the applied and resultant motions are of the same kind, though they may differ in, e.g. speed, direction, extent;

 "rotary" implies that the motion may continue indefinitely.

 "oscillating" means moving about an axis to an extent which is limited by the construction of the gearing and which may exceed one revolution, the movement being alternately forwards and backwards during continued operation of the gearing;

 "reciprocating" means moving substantially in a straight line, the movement being alternately forwards and backwards during continued operation of the gearing;

 "reversing" or "reversal" means that an applied movement in one direction may produce a resultant movement in either of two opposed directions at will;

 "central gears" includes any gears whose axis is the main axis of the gearing.

(3)Attention is drawn to the following places:

 A01D 69/06  Gearings in harvesters or mowers 

 A63H 31/00  Gearing for toys 

 B21B 35/12  Toothed-wheel gearing for metal-rolling mills 

 B60K  Arrangement of transmissions in vehicles 

 B61C 9/00  Transmissions or railway locomotives 

 B62D 3/00  Vehicle steering gears 

 B62M  Transmissions for cycles 

 B63H 23/00  Transmissions for marine propulsion 

 B63H 25/00  Marine steering gears 

 F01 to F04  Machines, engines, pumps 

 F15B 15/00  Gearings associated with fluid-actuated devices 

 G01D 5/04  Gearing used in indicating or recording apparatus in connection with measuring devices 

 H03J 1/00  Driving arrangements for tuning resonant circuits 

 H04L 13/04  Driving mechanisms for apparatus for transmission of coded digital information. [5] 


Subclass Index

GEARINGS NOT LIMITED TO ROTARY MOTION 

Mechanical gearings 

using levers, links, or cams 

F16H 21/00 to F16H 25/00 

using intermittently-driving members 

F16H 27/00 to F16H 31/00 

other gearings; combinations of gearings 

F16H 19/00, F16H 33/00, F16H 35/00; F16H 37/00 

details 

F16H 51/00 to F16H 57/00 

Fluid gearing 

F16H 43/00 

GEARINGS FOR CONVEYING ROTARY MOTION 

Toothed gearings 

F16H 1/00, F16H 3/00 

Using endless flexible members 

F16H 7/00, F16H 9/00 

Other friction gearing 

F16H 13/00, F16H 15/00 

Fluid gearing 

F16H 39/00, F16H 41/00, F16H 45/00 

Using intermittently-driving gearing 

F16H 29/00 

CONTROL 

of change-speed- or reversing-gearings conveying rotary motion 

F16H 59/00 to F16H 63/00 

COMBINATIONS OF GEARINGS; DIFFERENTIAL GEARINGS; OTHER GEARINGS 

F16H 47/00; F16H 48/00; F16H 49/00 

GENERAL DETAILS OF GEARINGS 

F16H 57/00 



Toothed gearings for conveying rotary motion


1/

00Toothed gearings for conveying rotary motion (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion F16H 3/00)

1/

02.without gears having orbital motion

1/

04..involving only two intermeshing members

1/

06...with parallel axes

1/

08....the members having helical, herring-bone, or like teeth

1/

10....one of the members being internally toothed

1/

12...with non-parallel axes

1/

14....comprising conical gears only

1/

16....comprising worm and worm-wheel

1/

18....the members having helical, herring-bone, or like teeth (F16H 1/14 takes precedence)

1/

20..involving more than two intermeshing members

1/

22...with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts

1/

24..involving gears essentially having intermeshing elements other than involute or cycloidal teeth (F16H 1/16 takes precedence)

1/

26..Special means compensating for misalignment of axes

1/

28.with gears having orbital motion

1/

30..in which an orbital gear has an axis crossing the main axis of the gearing and has helical teeth or is a worm

1/

32..in which the central axis of the gearing lies inside the periphery of an orbital gear

1/

34..involving gears essentially having intermeshing elements other than involute or cycloidal teeth (in worm gearing F16H 1/30)

1/

36..with two central gears coupled by intermeshing orbital gears

1/

46..Systems consisting of a plurality of gear trains, each with orbital gears

1/

48..Special means compensating for misalignment of axes


3/

00Toothed 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)

3/

02.without gears having orbital motion

Note

 In groups F16H 3/08, F16H 3/16 and F16H 3/20, gears which can be put out of mesh are not taken into consideration if they are used for reversal only.  [5]

3/

04..with internally-toothed gears

3/

06..with worm and worm-wheel or gears essentially having helical or herring-bone teeth

3/

08..exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts

3/

083...with radially acting and axially controlled clutching members, e.g. sliding keys  [5]

3/

085...with more than one output shaft  [5]

3/

087...characterised by the disposition of the gears (F16H 3/083, F16H 3/085 take precedence)  [5]

Note

 When counting the countershafts, the reverse countershaft is not taken into consideration if it is used for reversal only.  [5]

3/

089....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]

3/

091....including a single countershaft  [5]

3/

093....with two or more countershafts  [5]

3/

095.....with means for ensuring an even distribution of torque between the countershafts  [5]

3/

097.....the input and output shafts being aligned on the same axis  [5]

3/

10...with one or more one-way clutches as an essential feature

3/

12...with means for synchronisation not incorporated in the clutches (synchronised clutches F16D 23/02)

3/

14...Gearings for reversal only

3/

16..essentially with both gears that can be put out of gear and continuously-meshing gears that can be disengaged from their shafts

3/

18...Gearings for reversal only

3/

20..exclusively or essentially using gears that can be moved out of gear

3/

22...with gears shiftable only axially

3/

24....with driving and driven shafts coaxial

3/

26.....and two or more additional shafts

3/

28......an additional shaft being coaxial with the main shafts

3/

30....with driving and driven shafts not coaxial

3/

32.....and an additional shaft

3/

34...with gears shiftable otherwise than only axially

3/

36...with a single gear meshable with any of a set of coaxial gears of different diameters

3/

38...with synchro-meshing

3/

40...Gearings for reversal only

3/

42..with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable

3/

44.using gears having orbital motion

3/

46..Gearings having only two central gears, connected by orbital gears (F16H 3/68 to F16H 3/78 take precedence)

3/

48...with single orbital gears or pairs of rigidly-connected orbital gears

3/

50....comprising orbital conical gears

3/

52....comprising orbital spur gears

3/

54.....one of the central gears being internally toothed and the other externally toothed

3/

56.....both central gears being sun gears

3/

58...with sets of orbital gears, each consisting of two or more intermeshing orbital gears

3/

60...Gearings for reversal only

3/

62..Gearings having three or more central gears (F16H 3/68 to F16H 3/78 take precedence)

3/

64...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

3/

66...composed of a number of gear trains without drive passing from one train to another

3/

68..in which an orbital gear has an axis crossing the main axis of the gearing and has helical teeth or is a worm

3/

70..in which the central axis of the gearing lies inside the periphery of an orbital gear

3/

72..with a secondary drive, e.g. regulating motor, in order to vary speed continuously

3/

74..Complexes, not using actuatable speed-changing or regulating members, e.g. with gear ratio determined by free play of frictional or other forces

3/

76..with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable

3/

78..Special adaptation of synchronisation mechanisms to these gearings


Gearing for conveying rotary motion by endless flexible members (flexible members, e.g. belts, chains per se F16G)


7/

00Gearings 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)

7/

02.with belts; with V-belts

7/

04.with ropes

7/

06.with chains

7/

08.Means for varying tension of belts, ropes, or chains (pulleys of adjustable construction F16H 55/52)

7/

10..by adjusting the axis of a pulley

7/

12...of an idle pulley

7/

14...of a driving or driven pulley

7/

16....without adjusting the driving or driven shaft

7/

18.Means for guiding or supporting belts, ropes, or chains (construction of pulleys F16H 55/36)

7/

20..Mountings for rollers or pulleys

7/

22.Belt, rope, or chain shifters

7/

24.Equipment for mounting belts, ropes, or chains

   F16H 9/00 - F16H 21/54  
 

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