IPC 6 English version F16H !A-F16H 7/24

F16H-F16H00724

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

F 16

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

F 16 H

GEARING

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:

A 01 D 69/06

Gearings in harvesting machines

A 63 H 31/00

Gearing for toys

B 21 B 35/12

Toothed-weel gearing for metal-rolling mills

B 60 K

Arrangement of transmissions in vehicles

B 61 C 9/00

Transmissions or railway locomotives

B 62 D 3/00

Vehicle steering gears

B 62 M

Transmissions for cycles

B 63 H 23/00

Transmissions for marine propulsion

B 63 H 25/00

Marine steering gears

F 01 to F 04

Machines, engines, pumps

F 15 B 15/00

Gearings associated with fluid-actuated devices

G 01 D 5/04

Gearing used in indicating or recording apparatus in connection with measuring devices

H 03 J 1/00

Driving arrangements for tuning resonant circuits

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

Toothed gearings for conveying rotary motion

Toothed gearings for conveying rotary motion (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion F 16 H 3/00)

without gears having orbital motion

involving only two intermeshing members

with parallel axes

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

one of the members being internally toothed

with non-parallel axes

comprising conical gears only

comprising worm and worm-wheel

the members having helical, herring-bone, or like teeth (F 16 H 1/14 takes precedence)

involving more than two intermeshing members

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

involving gears essentially having intermeshing elements other than involute or cycloidal teeth (F 16 H 1/16 takes precedence)

Special means compensating for misalignment of axes

with gears having orbital motion

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

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

involving gears essentially having intermeshing elements other than involute or cycloidal teeth (in worm gearing F 16 H 1/30)

with two central gears coupled by intermeshing orbital gears

(transferred to F 16 H 48/00)

(transferred to F 16 H 48/08)

(transferred to F 16 H 48/10)

(transferred to F 16 H 48/20)

445

(transferred to F 16 H 48/30)

455

(transferred to F 16 H 48/20)

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

Special means compensating for misalignment of axes

Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion (speed-changing or reversing mechanisms F 16 H 59/00 to F 16 H 63/00)

without gears having orbital motion

Note

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

with internally-toothed gears

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

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

083

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

085

with more than one output shaft [5]

087

characterised by the disposition of the gears (F 16 H 3/083, F 16 H 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]

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]

091

including a single countershaft [5]

093

with two or more countershafts [5]

095

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

097

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

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

with means for synchronisation not incorporated in the clutches (synchronised clutches F 16 D 23/02)

Gearings for reversal only

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

Gearings for reversal only

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

with gears shiftable only axially

with driving and driven shafts coaxial

and two or more additional shafts

an additional shaft being coaxial with the main shafts

with driving and driven shafts not coaxial

and an additional shaft

with gears shiftable otherwise than only axially

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

with synchro-meshing

Gearings for reversal only

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

using gears having orbital motion

Gearings having only two central gears, connected by orbital gears (F 16 H 3/68 to F 16 H 3/78 take precedence)

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

comprising orbital conical gears

comprising orbital spur gears

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

both central gears being sun gears

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

Gearings for reversal only

Gearings having three or more central gears (F 16 H 3/68 to F 16 H 3/78 take precedence)

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

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

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

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

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

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

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

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 F 16 G)

Gearings for conveying rotary motion by endless flexible members (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion F 16 H 9/00)

with belts; with V-belts

with ropes

with chains

Means for varying tension of belts, ropes, or chains (pulleys of adjustable construction F 16 H 55/52)

by adjusting the axis of a pulley

of an idle pulley

of a driving or driven pulley

without adjusting the driving or driven shaft

Means for guiding or supporting belts, ropes, or chains (construction of pulleys F 16 H 55/36)

Mountings for rollers or pulleys

Belt, rope, or chain shifters

Equipment for mounting belts, ropes, or chains

F16H 9/00 - F16H 21/54