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IPC 7
  F16D 27/00 - F16D 43/30  
F16D04500-F16D05550
  F16D 57/00 - F16D 113:00  

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 DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES  [2]


45/

00Freewheels or freewheel clutches combined with automatic clutches



47/

00Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the following sets of groups: F16D 1/00 to F16D 9/00; F16D 11/00 to F16D 23/00; F16D 25/00 to F16D 29/00; F16D 31/00 to F16D 39/00; F16D 41/00 to F16D 45/00

47/

02.of which at least one is a coupling (elastic attachment of clutch parts, see the relevant groups for clutches)

47/

04.of which at least one is a freewheel (F16D 47/02, F16D 47/06 take precedence; freewheels combined with a clutch to lock the driving and driven members of the freewheel F16D 41/04, F16D 41/26)

47/

06.of which at least one is a clutch with a fluid or a semifluid as power-transmitting means

Note

 In groups F16D 48/00 to F16D 48/12, it is desirable to add the indexing codes of groups F16D 101:00 to F16D 113:00. The indexing codes should be unlinked.  [6]


48/

00External control of clutches  [6]

Note

 This group does not cover actuation, which is covered by groups F16D 11/00 to F16D 29/00.  [6]

48/

02.Control by fluid pressure  [6]

48/

04..providing power assistance  [6]

48/

06.Control by electric or electronic means, e.g. of fluid pressure  [6]

48/

08..Regulating clutch take-up on starting  [6]

48/

10..Preventing unintentional or unsafe engagement  [6]

48/

12..Control of torque transfer between driven axles  [6]


Brakes (electrodynamic brake systems for vehicles in general B60L; dynamo-electric brakes H02K)


49/

00Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like (similar clutches F16D 13/10)

49/

02.shaped as a helical band or coil with more than one turn, with or without intensification of the braking force by the tension of the band or contracting member (similar clutches F16D 13/08)

49/

04..mechanically actuated

49/

06..fluid actuated

49/

08.shaped as an encircling band extending over approximately 360°

49/

10..mechanically actuated (self-tightening F16D 49/20)

49/

12..fluid actuated

49/

14.shaped as a fluid-filled flexible member actuated by variation of the fluid pressure

49/

16.Brakes with two brake-blocks (self-tightening F16D 49/20)

49/

18.Brakes with three or more brake-blocks (self-tightening F16D 49/20)

49/

20.Self-tightening brakes (with helical band or coil with more than one turn F16D 49/02)

49/

22..with an auxiliary friction member initiating or increasing the action of the brake


51/

00Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like (similar clutches F16D 13/14)

51/

02.shaped as one or more circumferential bands (similar clutches F16D 13/12)

51/

04..mechanically actuated

51/

06..fluid actuated

51/

08.shaped as an expansible fluid-filled flexible member

51/

10.shaped as exclusively radially-movable brake-shoes

51/

12..mechanically actuated

51/

14..fluid actuated

51/

16.shaped as brake-shoes pivoted on a fixed or nearly-fixed axis (self-tightening F16D 51/46)

51/

18..with two brake-shoes

51/

20...extending in opposite directions from their pivots

51/

22....mechanically actuated

51/

24....fluid actuated

51/

26...both extending in the same direction from their pivots

51/

28....mechanically actuated

51/

30....fluid actuated

51/

32..with three or more brake-shoes

51/

34...extending in opposite directions from their pivots

51/

36....mechanically actuated

51/

38....fluid actuated

51/

40...all extending in the same direction from their pivots

51/

42....mechanically actuated

51/

44....fluid actuated

51/

46.Self-tightening brakes with pivoted brake-shoes

51/

48..with two linked or directly-interacting brake-shoes

51/

50...mechanically actuated

51/

52...fluid actuated

51/

54..with three or more brake-shoes, at least two of them being linked or directly interacting

51/

56...mechanically actuated

51/

58...fluid actuated

51/

60..with wedging action of a brake-shoe, e.g. the shoe entering as a wedge between the brake-drum and a stationary part

51/

62...mechanically actuated

51/

64...fluid actuated

51/

66..an actuated brake-shoe being carried along and thereby engaging a member for actuating another brake-shoe

51/

68...mechanically actuated

51/

70...fluid actuated


53/

00Brakes with braking members co-operating with both the periphery and the inner surface of a drum, wheel-rim, or the like (similar clutches F16D 13/20)


55/

00Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g . disc brakes (similar clutches F16D 13/38)

55/

02.with axially-movable discs or pads pressed against axially-located rotating members

55/

04..by moving discs or pads away from one another against radial walls of drums or cylinders

55/

06...without self-tightening action

55/

08....Mechanically-actuated brakes

55/

10....Brakes actuated by a fluid-pressure device arranged in or on the brake

55/

12.....comprising an expansible fluid-filled flexible member coaxial with the brake

55/

14...with self-tightening action, e.g. by means of coacting helical surfaces or balls and inclined surfaces

55/

15....initiated by means of brake-bands or brake-shoes

55/

16....Mechanically-actuated brakes

55/

18....Brakes actuated by a fluid-pressure device arranged in or on the brake

55/

20.....comprising an expansible fluid-filled flexible member coaxial with the brake

55/

22..by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads  [5]

55/

224...with a common actuating member for the braking members  [5]

55/

225....the braking members being brake pads  [5]

55/

2255.....in which the common actuating member is pivoted  [5]

55/

226.....in which the common actuating member is moved axially  [5]

55/

2265......the axial movement being guided by one or more pins  [5]

55/

227.......by two pins  [5]

55/

228...with a separate actuating member for each side

55/

24.with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member

55/

26..without self-tightening action

55/

28...Brakes with only one rotating disc

55/

30....mechanically actuated

55/

31.....by means of an intermediate leverage

55/

32....actuated by a fluid-pressure device arranged in or on the brake

55/

33.....by means of an intermediate leverage

55/

34.....comprising an expansible fluid-filled flexible member coaxial with the brake

55/

36...Brakes with a plurality of rotating discs all lying side by side

55/

38....mechanically actuated

55/

39.....by means of an intermediate leverage

55/

40....actuated by a fluid-pressure device arranged in or on the brake

55/

41.....by means of an intermediate leverage

55/

42.....comprising an expansible fluid-filled flexible member coaxial with the brake

55/

44...with the rotating part consisting of both central plates and ring-shaped plates arranged concentrically around the central plates

55/

46..with self-tightening action

55/

48...with discs or pads having a small free angular travel relative to their support, which produces the self-tightening action

55/

50...with auxiliary friction members, which may be of different type, producing the self-tightening action

  F16D 27/00 - F16D 43/30    F16D 57/00 - F16D 113:00  
 

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