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
  • F16D13/72—Features relating to cooling

Definitions

• the present invention relates to a cooling mechanism for a clutch cover assembly used for a friction clutch or the like for an automobile.
• FIG. 9 shows a conventional clutch cover assembly, in which a flywheel 11 driven by an engine (not shown) has a large diameter in the center.
• the outer periphery of the dish cover-shaped clutch cover body 12 with holes is fixed concentrically
• the clutch disk 13 An output shaft (not shown) is connected to the center of the clutch disk 13. Also, a press plate 14 for pressing the clutch disk 13 to the flywheel 11 side, the clutch disk It is arranged concentrically in an internal space 20 between 13 and the clutch cover body 12.
• the diaphragm spring 16 is made of metal and formed in an annular shape, and the clutch disk 13 is formed by a press plate 14. It is intended to be pressed against the flywheel 11.
• An annular spring 16 a is formed integrally with the outer periphery of the diaphragm spring 16, and is formed on the inner periphery of the diaphragm spring 16.
• a large number of tongues 5 extending radially from the inner peripheral edge of the ring spring 16a to the center of the diaphragm spring are formed in the body.
• a slit 15 is formed between the tongues 5, and a window hole 1 is formed in the slit canopy body 12 of the slit 15. 8 is formed.
• the pair of wire rings 17 is a metal ring having approximately the same radius, and the pin frame 19 is fitted into the window hole 18 so that the diaphragm frame is formed. It is sandwiched on both sides of ring 16.
• the opposite side of the flywheel spring 16 of the diaphragm spring 16 is connected to the clutch spring via a link mechanism (not shown).
• the release bearing which is connected to the shaft, is slidably provided on the output shaft described above, and the tongue 5 of the diaphragm spring 16 is connected to the frame. It has a structure that can be pressed to the side of the wheel 11.
• the diaphragm spring 16 in the clutch connection state, is supported by the wire ring 17 as a fulcrum, and the diaphragm spring 16 is formed by its own elasticity.
• the clutch disk 13 By pressing the plate 14 against the flywheel 11, the clutch disk 13 is driven by the plate 14. The wheel is pressed against the flywheel 11 side, and the rotational force of the flywheel 11 is transmitted to the clutch disk 13.
• the flywheel 11 Even though the clutch disk 13 and the clutch disk 13 and the press plate 14 slide frequently, generating frictional heat, Since it does not have any cooling function, the clutch disk 13 is worn by the heat generated by the clutch disk 13 in the above structure. Of the frictional material of the clutch disk 13 under severe operating conditions.If the bending of the plastic plate 14 occurs, This causes a problem.
• the tongue formed on the diaphragm spring 16 by pressing or the like as shown in Fig. 10 5 is bent up and down to form a wing shape, and when the diaphragm spring 16 rotates in the X direction, the air slips as shown by the arrow A. It is considered that the structure is such that it is fed into the internal space through the port 15.
• the formation of the tongue portion 5 having such a shape requires a large-scale facility, so that the cost becomes extremely high, which is not preferable.
• the shape of the tongue 5 is simply changed, the air circulation in the internal space 20 is poor, and a sufficient cooling function cannot be achieved.
• the present invention does not solve such a problem.
• the present invention has a dish-shaped clutch cap having a large-diameter hole in the center, It is supported on the clutch cover body 12 via a pair of wiring rings 17 and has an annular outer periphery.
• a diaphragm spring 16 having a spring portion 16a, and a large number from the inner peripheral edge of the annular spring portion 16a to the center of the diaphragm spring.
• the tongues 5 of the clutch force bar-assembly 1 in which the tongues 5 extend radially and the slits 15 are formed between the tongues are provided at a plurality of spaced apart tongues 5.
• the clutch cover assembly is characterized by having a plurality of exhaust holes 2 communicating with the two, and is provided with a cooling machine 3 ⁇ 4 of a clutch cover assembly.
• the clutch cover main body 12 is connected to the flywheel holder 11 as already described with reference to FIG.
• the clutch disc is fixed in the internal space 20 formed by the flywheel 11 and the clutch cover main body 12.
• the press plate 14 for pressing the clamp 13 and the clutch disk 13 against the flywheel 11 is concentrically arranged in the internal space 20. It has been done.
• FIG. 1 is a schematic front view of the present invention
• a diaphragm spring 16 fixed to a clutch body 12 has a tongue 5 radially from the center Many are formed.
• a slit 15 is formed between the tongues 5 so that the tongues 5 cooperate to perform a lever function.
• a window hole 18 is formed in the vicinity of the clutch force bar main body 12 of the slit 15. The window hole 18 is formed wider than the slit 15, and the tab 21 is sandwiched between a pair of wire rings 17 having the same radius.
• a plurality of exhaust holes 2 are formed on the outer periphery of the clutch cover body 12. As will be described later, the air discharge hole 2 is used to discharge air sent into the internal space 20 of the clutch cover assembly 1 by the action of the blade member 4. It is a thing.
• a projection 5′a is formed.
• the lip 15 is formed wide (the blade member 4 is formed of resin, and the blade supporting portion 4a has a substantially U-shaped cross section.
• the width of the cut portion 4f Is approximately equal to the width J? 1 of the tongue 5 'from the center end 5'b of the protrusion 5'a of the tongue 5'a to the tip of the tongue 5'.
• the width L 2 of the blade supporting inner peripheral surface 4 g is, Ru width ⁇ ⁇ roughly the like are rather Do One Tei of collision detection section 5 'tongues 5, including a'.
• the length of the blade member 4 L 4 the protruding portion 5 'a central side end portion 5' b or al the tip or in the tongue portion 5 'length of £ 4 and equal Mr. squid or by Ri also rather short It is formed .
• the height L of the inner peripheral side surface 4 h of the blade supporting portion 4 a. Is approximately equal in thickness to the tongue 5 ', £ 3 .
• FIG. 3 which is a front view of the blade member 4, the blade 4b is for introducing air into the slit 15, so that the slit 15 is It is formed integrally with the upper end of the right side surface of the blade supporting portion 4a so as to cover it.
• the wind section 4c is formed integrally with the lower end of the left side surface.
• the engaging portion 4d is substantially L-shaped, and the blades 4 are arranged such that the lower end surfaces 4i and 4g in the longitudinal direction are on the same plane.
• the support 4a is formed integrally with the upper end of the plane 4j of the support 4a. Accordingly, in order to fix the blade member 4 to the tongue portion 5 ′, first, as shown by the arrow Y in FIG. 2, the side of the blade member 4 where the locking portion 4 d is formed is tongue portion 5 ′.
• the blade members 4 Remind as is et in the arrow Z window hole 1 Push it to the 8 side.
• the protrusion 4 e of the locking portion 4 d is It comes into contact with the side edge 5'b of the protrusion 5'a and is pushed up by the upper surface 5'c of the protrusion 5'a, and further on the inner peripheral side of the window hole 18 of the protrusion 5'a.
• the blade member 4 is fixed to the vicinity of the window hole 18 of the tongue 5 ′.
• the clutch body ⁇ the main body 12 rotates together with the flywheel 11 as shown in FIG.
• the tongues 5, 5 'of the diaphragm spring fixed to the clutch cover main body 12 rotate in the X direction.
• the air facing the blade 4b is fed into the slit 15 as indicated by the arrow A.
• the air sent into the internal space 20 formed in the clutch cover assembly is indicated by an arrow A in FIG.
• the friction surface between the flywheel 11 and the clutch disk 13, the clutch disk 13 and the press plate 1 4 and the friction cover 14 is fed to the clutch cover body 12 side of the pres- sure plate 14 and absorbs the frictional heat of the friction surface. Cool the wheelchair 11, the clutch disk 13 and the press plate 14.
• FIG. 7 shows another embodiment of the present invention.
• the difference between this embodiment and the above-described embodiment is that the tongue formed on the jump spring 16 and the tongue 5 in the above-described embodiment are different from each other. Only the shape of blade member 4 attached to '.
• a large number of tongues 5 radiate toward the center similarly to the above-described embodiment.
• a plurality of tongues 5 are cut off at intervals as shown in FIG. 7 to form a gap 23. .
• a blade member 40 is fixed to the tongue 5 adjacent to the gap 23 on the opposite side to the rotation direction X.
• the blade supporting portion 40a of the blade member 40 has a hole 40e having a rectangular cross section. This hole is formed in a tapered shape so as to follow the contour of the tongue 5.
• the blade 4Ob is provided in the blade support portion 40a so as to cover the gap 23 as in the above-described embodiment. I'm afraid.
• the blade member 40 is provided with a wind portion 40c and a locking portion 40d (FIG. 7), similarly to the blade member 4 in the above-described embodiment. Accordingly, when the blade member 40 is locked to the tongue 5, the locking portion 40d is locked to the inner peripheral edge of the window 18 of the tongue 5, so that the blade 40 is connected to the tongue 5. It is fixed near the window hole 18 side.
• the present invention can be applied to various kinds of automotive clutches using a diaphragm spring.

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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)

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ID=15678762

Family Applications (1)

Country Status (3)

Cited By (1)

Families Citing this family (10)

Citations (2)

Family Cites Families (10)

• 1986
  • 1986-10-16 JP JP1986158761U patent/JPH0232892Y2/ja not_active Expired
• 1987
  • 1987-10-05 WO PCT/JP1987/000744 patent/WO1988002826A1/ja unknown
  • 1987-10-05 US US07/199,411 patent/US4886153A/en not_active Expired - Fee Related

Patent Citations (2)

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