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
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D25/00—Fluid-actuated clutches
  • F16D25/12—Details not specific to one of the before-mentioned types
  • F16D25/126—Details not specific to one of the before-mentioned types adjustment for wear or play
• • 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
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D25/00—Fluid-actuated clutches
  • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
  • F16D25/088—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members being distinctly separate from the axis of rotation

Definitions

• the present invention relates to a vehicle clutch, and more particularly to an improvement of a clutch actuating device suitable for application to a clutch of a type in which opening and connecting operations of the clutch are performed by a pneumatic forward-moving device.
• the present invention has been made in view of the above-described circumstances, and the wear of the clutch disk facing can be automatically compensated without extending the piston stroke. To provide a touch actuator.
• the clutch actuating device is reciprocally housed in a cylinder, is connected to a release bearing of a clutch, and is provided so as to open or connect the clutch by its reciprocating displacement.
• the first screw and the first screw are accommodated in the cylinder so as to be reciprocally slidable at a distance from the first screw, and the forward displacement according to the operation of the clutch operating means is performed.
• the second piston is connected to the hydraulic oil chamber when the clutch operating means is not operating, and is connected to the hydraulic oil chamber when the clutch operating means is operating. Is connected to this oil replenishment port, which is provided so as to be blocked by the forward displacement of the It is characterized by having a reservoir tank provided to receive oil.
• the drawings are schematic views showing an embodiment of the clutch actuating mechanism according to the present invention.
• Reference numeral 10 in the figure indicates the clutch as a whole.
• This clutch 10 is the flywheel of the engine (not shown).
• An annular press plate 16 is disposed inside 1 4.
• the pretension plate 16 is constantly urged toward the flywheel 12 by pretensioning spring (not shown).
• a clutch hub 2 4 is connected to the clutch disk 18 via a connecting spring 2 2. Further, this clutch hub 24 is spline-connected to the drive pinion gall 26 (not shown) of the transmission unit.
• a release bearing 28 for opening or connecting the clutch 10 is provided on the outside of the drive pinion shaft 26 so as to be slidable in the axial direction.
• One end of the release lever 30 is in contact with the side of the release bearing 28 on the flywheel side. This release lever 30 is described above. It is rotatably supported around a fulcrum pin 3 2 supported on the clutch cover 1 4. The end opposite to the end contacting the release bearing 28 is pivotally attached to the pleats chaplet 16.
• release bearing 28 is configured to cooperate with the clutch release fork 35 fixed to one end of the clutch release shaft 34.
• the free end of the actuating lever 36 fixed to the other end of the clutch release shaft 34 is pivotally attached to one end of the push rod 38.
• the other end of the push rod 38 described above is in contact with the outer end surface of the first piston 4 4 slidably fitted in the hole 42 of the oil cylinder 40.
• the operating lever 36 and the first screw 44 are smoothly interlocked by the bush rod 38. Therefore, the operating position of the release bearing 28 changes due to the reciprocating displacement of the first piston 44, and the clutch 10 is opened or connected.
• a second piston 4 8 which cooperates with the first piston 4 4 to define a hydraulic oil chamber 4 6 is provided in the hole 4 2 of the oil cylinder 40. It is fitted slidably at a distance from the tongue 4 4.
• a spring 50 is contracted between the pistons 44 and 48 so as to urge the springs 50 in a direction in which they are separated from each other.
• an oil supplement glove 5 is provided close to the second piston 48 side.
• the oil supply port 52 is connected to the oil reservoir 5 4 which stores hydraulic oil. Therefore, the hydraulic oil Chamber 4 6 is filled with hydraulic fluid.
• an air pressure responding device 56 serving as a fluid pressure responding device as a clutch operating means is arranged in tandem.
• This pneumatic actuator 5 6 consists of an air cylinder or shell 58 and this air cylinder.
• the pressure chamber 66 on the right side of the piston 60 in the figure is a solenoid valve 6 8 which serves as a control valve which is opened / closed in response to a driver's operation of a clutch operating member (not shown).
• a compressed air source 70 which serves as a pressure fluid supply source. That is, this solenoid valve 68 is provided in the conduit connecting the pressure chamber 66 and the compressed air source 70.
• the spring 50 described above presses the first and second pistons 44 and 48 toward the push rod 38 and the shaft 64, respectively, so that the smooth operation of the device system can be achieved. It will be realized.
• the members in the pneumatic actuator 5 6 and the oil cylinder 40 that compose the clutch actuating device are in the illustrated rest positions. From this state, the driver operates the clutch operating member such as the clutch pedal in order to perform the gear shifting operation. As a result, the solenoid valve 68 is opened, and the compressed air in the compressed air source 70 is supplied to the pressure chamber 6 6 of the pneumatic actuator 5 6. Therefore, piston 60 compresses the return ring 62 and moves it to the left in the figure.
• the release bearing 28 is displaced to the left in the figure via 3 6, the clutch release shutter 3 4, and the clutch release fork 35.
• the release lever 30 rotates clockwise about the fulcrum pin 32. Then, the pleats chaplet 16 is displaced to the right in the figure and separated from the clutch disk 18. Then, the force transmission from the flywheel 12 to the drive pinion drive 26 is cut off, so that the required gear shift operation in the transmission is executed during this period.
• the capacity of the pneumatic actuator 56 can be substantially conventional, and the size, weight, price and amount of compressed air required for operation are virtually unchanged.
• the present invention is not limited to the configurations of the above-described embodiments, and can be variously modified without departing from the scope of the present invention.
• the second piston may be mechanically connected to the clutch actuating member: and no spring 50 may be used.
• the solenoid valve 68 is configured to be opened when the driver operates the clutch operating member such as the clutch pedal. By electronically controlling the operation of the valve 68 according to the operating condition of the vehicle, it becomes possible to simply apply it to a vehicle equipped with an automatic clutch. Industrial availability
• the clutch actuating device does not increase the stroke length of the clutch pedal or the fluid pressure responsive device for controlling the clutch, but does not increase the stroke length of the clutch disc. Since the wear of the lacing can be automatically compensated for, it is extremely useful in practice both in vehicles equipped with a driver-operated clutch pedal and in vehicles equipped with an automatic latch. In particular, when using a fluid pressure responsive device, it becomes possible to automatically compensate for the wear of the facing without increasing the size, weight and cost of the device.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=16271680

Family Applications (1)

Country Status (4)

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Citations (4)

Family Cites Families (5)

• 1984
  • 1984-12-17 JP JP19126684U patent/JPS61139319U/ja active Pending
• 1985
  • 1985-12-17 DE DE19853590659 patent/DE3590659T1/de not_active Ceased
  • 1985-12-17 WO PCT/JP1985/000688 patent/WO1986003811A1/ja active Application Filing
  • 1985-12-17 GB GB8617802A patent/GB2179418B/en not_active Expired

Patent Citations (4)

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