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
  • F16D13/00—Friction clutches
  • F16D13/58—Details
  • F16D13/583—Diaphragm-springs, e.g. Belleville
  • F16D13/585—Arrangements or details relating to the mounting or support of the diaphragm on the clutch on the clutch cover or the pressure plate

Definitions

• the present invention relates to a clutch cover assembly three-dimensional body in which a spring member for pressing a press plate is disposed outside the clutch cover.
• reference numeral 10 denotes a flywheel of the engine, and a flywheel between the flywheel 10 and the press-up plate 12 is provided.
• the touch disk 14 is sandwiched.
• the plate plate 12 is surrounded by a clutch cover 16, and an annular plate-shaped resilient member is provided outside the clutch cover 16.
• a release operation lever for transmitting the spring force of the spring member to the presser plate is provided.
• the radiators 20 are arranged at equal intervals in the circumferential direction of the clutch, for example, at four locations, and the release bearings 24 are concentric with the input shaft 22. The inner peripheral end of the 20 is pressed.
• the present invention provides a clutch canopy assembly in which an annular plate-shaped spring member is arranged outside a clutch cover, and has a large lever ratio for boosting the spring force of the spring member.
• An object of the present invention is to provide a clutch cover assembly that can be set to a small size and can be reduced in axial length.
• a substantially annular spring member is disposed outside a clutch force bar surrounding a press plate, and the spring plate is formed by the spring member.
• the spring member is provided by a diaphragm spring that exerts the spring force in the direction of the pres- sure plate.
• the diaphragm spring is supported by the clutch cover to form a fulcrum for receiving the spring reaction force of the diaphram spring.
• a spring force booster reno which is pivotally supported by the clutch cover with the position radially outward from the spring force transmitting portion of the plate as the center of rotation, is arranged in the radial direction.
• the point of application of the spring force on the radially inward side of this lever is defined as the fulcrum of the diaphragm spring.
• the lever is provided radially outward and presses against the spring force transmitting portion.
• the radially outward spring force application point of the lever is defined by the distance between the lever rotation center and the outer spring force application point.
• the lever ratio should be large.
• the length in the axial direction is shorter.
• FIG. 1 is a partial longitudinal sectional view of a clutch according to a first embodiment of the present invention
• FIG. 2 is a partial longitudinal sectional view of a second embodiment
• FIG. 3 is a longitudinal sectional view showing a conventional example. It is.
• FIG. 1 is a longitudinal sectional view of a clutch for a large vehicle employing the present invention
• the same reference numerals as those in FIG. 3 denote the same or corresponding parts. Show.
• a substantially annular press plate 12 that is continuous around the entire circumference with the center line 0 as the center is a press clutch plate. And is connected to the flywheel 10 at the outer periphery of the clutch force bar 16. You.
• the clutch cover 16 also has a substantially annular shape continuously over the entire circumference. -Behind the flywheel 10 (the arrow F is forward), a diaphragm spring 30 is arranged, and the diaphragm spring 30 is disposed. A notch 31 radially extending from the inner periphery of 30 is fitted with a start bin 32 to stop the diaphragm spring 30 from turning. .
• the stud pin 32 is fixed to the inner periphery of the clamp 16.
• Two wire rings 34 are interposed between the shutter 32 and the diaphragm spring 30. The reaction cover Q of the diaphragm spring 30 is received by the clutch cover 16 via the ring 34.
• the inner peripheral portion 35 of the diaphragm spring 30 is pressed against the release bearing 24 (FIG. 3), and the inner peripheral portion 35 is indicated by a reference numeral 24.
• a well-known structure JS that eliminates the spring force P of the diaphragm spring 3 ⁇ ⁇ by pushing it to the position a.
• each cantilevered lever 40 is arranged at equal intervals in the circumferential direction of the clutch cover 16, and the lever 40 rotates about the shaft 41. It is supported freely.
• the shaft 41 extending in the direction perpendicular to the plane of FIG. 1 is supported by two lip portions 42 at both ends.
• the lip portion 42 is formed by cutting and raising a part of the clutch cover 16, and a window hole 43 is opened in the clutch cover 16. ing .
• This window hole 4 3 is connected to the press plate 12, and the file clamp land 45 continuous with the press plate 12 is outside the clutch cover 16. Projecting out of the way.
• An inner protrusion 44 is formed on the radially inner periphery of the lever 40, that is, at the upper end in FIG. 1, and the inner protrusion 44 is a diaphragm spring. It is pressed against 30.
• An outer protrusion 46 is formed in the middle of the lever 40, and the outer protrusion 46 is a film land portion 45 of the press plate 12. It is pressed against.
• the distance B from the center 0 1 to the outer protrusion 46 is set to be much shorter than the distance A from the center 0 1 force of the good luck 41 to the inner protrusion 44.
• the lever ratio of lever 40 has been increased. Accordingly, the spring force P of the diaphragm spring 30 acting on the inner protrusions 44 is boosted by the lever ratio A: B, and the outer protrusions 46 are not increased. O The spring force W is transmitted to the phantom drum land 45.
• a distance d is provided between the wire ring 34 and the inner protrusion 44, and the effective radius of the diaphragm spring 30 is c. .
• the outer periphery of the pusher plate 12 has one end of a strap plate 50 extending in the circumferential direction of the clutch, that is, perpendicular to the paper surface. Is fixed with a rivet 52, and the other end of the strap plate 50 is fixed to a clamp plate 16.
• the inner projection 4 4 One one one one
• the spring plate 12 At the time of the release when the spring force W is lost, the spring plate 12 returns the preset plate 12 to the rear with the spring force of the strap plate 50. ing .
• the lever 40 and the diaphragm spring 30 may be connected by a clip 54 so as to forcibly return the lever 40 backward.
• the diaphragm spring 30 Since the diaphragm spring 30 is located outside the clutch cover 16, the diaphragm spring 30 is relatively cool. It is cooled by outside air and hardly affected by heat.
• the lever 40 is not pivoted directly by the release bearing 24 as in the prior art, but instead uses the spring force of the diaphragm spring 30 as a fan. It only needs to be transmitted to the crumbland section 45, so the leverage ratio of A: B is great. Therefore, a large spring force W is generated by a small spring force P. In addition, the release load of the release bearing 24, that is, the depression force of the clutch pedal is also light.
• FIG. 2 shows a second embodiment of the clutch for an automobile according to the present invention, in which a portion between an outer peripheral edge 33 of a diaphragm spring 30 and an outer projection 44 is shown.
• a set of clutch covers according to the present invention is provided.
• a spring member is composed of a diaphragm spring 30 that generates a spring force P in the direction of the pres- sure plate, and a diaphragm spring is formed.
• a fulcrum for example, a wire ring 34 for supporting the spring 30 on the clutch cover and receiving the spring reaction force Q of the diaphragm spring 30 is formed.
• the spring force transmitting part of the push-up plate 12 (for example, the file clamp land part 45) is used to rotate the radially outer position as the center of rotation.
• a lever 40 for resilient force which is axially supported by the lever 16, is arranged in the radial direction, and the radially inward spring force acting point of the lever 40 (for example, the inner side)
• the projections 44) are provided radially outward from the wire rings 34 that support the diaphragm spring 30, and are half of the levers 40.
• the distance B between the center of rotation 01 of the lever 40 and the point of application of the outward spring force is defined by the point of application of the outward spring force (the outer protrusion 46) in the direction.
• the diaphragm spring 30 Since the diaphragm spring 30 is located outside the clutch cover 16, the diaphragm spring 30 has a relatively low temperature. It is cooled by the outside air and becomes less affected by heat, and the life of the diaphragm spring 30 can be extended.
• the diaphragm 40 is not directly rotated by the release bearing 24 as in the conventional case, but is a diaphragm spring. Since the spring force of the ring 30 only needs to be transmitted to the phantom land section 45, the lever ratio of A: B can be increased. Accordingly, a large spring force W can be generated with a small spring force P, and the release load of the release bearing 24, that is, the depression force of the clutch pedal is also increased. It can be reduced.
• the axial thickness of the lever 40 is reduced, and the diaphragm spring 30 is supported on the clamp 16 so that the clutch is closed.
• the axial dimension of the entire switch can be reduced, making it more compact.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Mechanical Operated Clutches (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=18033044

Family Applications (1)

Country Status (2)

Citations (2)

• 1986
  • 1986-12-29 JP JP31275686A patent/JPS63172023A/ja active Granted
• 1987
  • 1987-12-14 WO PCT/JP1987/000977 patent/WO1993013326A1/ja unknown

Patent Citations (2)

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