Abstract: Modular clutch construction in which a clutch cover assembly, concentrically containing a pressure plate actuating a clutch disc assembly, is fixed to the flywheel of an engine as a modular unit. The construction improves the modular connection between the clutch cover peripheral wall and the flywheel; in particular through the use of pins to restrain the cover from whirling relative to the flywheel, and by a taking advantage of a method of starter ring-gear installation in which the gear is shrink-fitted over the flywheel with the clutch cover peripheral wall intervening, such that the circumferential end margin of the clutch cover is simultaneously clamped between the ring gear and the flywheel cylindrical surface. The clutch cover is thus secured onto the flywheel in an assembly stage of reduced steps, by comparison with methods employing bolts or other fasteners-as the primary connecting means.

Abstract: A modular clutch includes a flywheel 2, a clutch cover assembly 3 and a clutch disk assembly 4, which form a single module that in one embodiment is installed directly onto the crankshaft of an engine, and in an alternate embodiment is attached to a flex plate. The modular clutch is configured to be installed and replaced as a unit. The clutch cover assembly 3 has a clutch cover 21, a pressure plate 22 and diaphragm spring 23. The clutch disk assembly 4 has a clutch engagement portion 31 made of a metallic sintered body.

Abstract: A modular clutch includes a flywheel 2, a clutch cover assembly 3 and a clutch disk assembly 4, which form a single module that in one embodiment is installed directly onto the crankshaft of an engine, and in an alternate embodiment is attached to a flex plate. The modular clutch is configured to be installed and replaced as a unit. The clutch cover assembly 3 has a clutch cover 21, a pressure plate 22 and diaphragm spring 23. The clutch disk assembly 4 has a clutch engagement portion 31 made of a metallic sintered body.

Abstract: Modular clutch construction in which a clutch cover assembly, concentrically containing a pressure plate actuating a clutch disc assembly, is fixed to the flywheel of an engine as a modular unit. The construction improves the modular connection between the clutch cover peripheral wall and the flywheel; in particular through the use of pins to restrain the cover from whirling relative to the flywheel, and by a taking advantage of a method of starter ring-gear installation in which the gear is shrink-fitted over the flywheel with the clutch cover peripheral wall intervening, such that the circumferential end margin of the clutch cover is simultaneously clamped between the ring gear and the flywheel cylindrical surface. The clutch cover is thus secured onto the flywheel in an assembly stage of reduced steps, by comparison with methods employing bolts or other fasteners as the primary connecting means.

Abstract: Modular clutch construction in which a clutch cover assembly, concentrically containing a pressure plate actuating a clutch disc assembly, is fixed to the flywheel of an engine as a modular unit. The construction improves the modular connection between the clutch cover peripheral wall and the flywheel; in particular through the use of pins to restrain the cover from whirling relative to the flywheel, and by a taking advantage of a method of starter ring-gear installation in which the gear is shrink-fitted over the flywheel with the clutch cover peripheral wall intervening, such that the circumferential end margin of the clutch cover is simultaneously clamped between the ring gear and the flywheel cylindrical surface. The clutch cover is thus secured onto the flywheel in an assembly stage of reduced steps, by comparison with methods employing bolts or other fasteners as the primary connecting means.

Abstract: Modular clutch construction in which a clutch cover assembly, concentrically containing a pressure plate actuating a clutch disc assembly, is fixed to the flywheel of an engine as a modular unit. The construction improves the modular connection between the clutch cover peripheral wall and the flywheel; in particular through the use of pins to restrain the cover from whirling relative to the flywheel, and by a taking advantage of a method of starter ring-gear installation in which the gear is shrink-fitted over the flywheel with the clutch cover peripheral wall intervening, such that the circumferential end margin of the clutch cover is simultaneously clamped between the ring gear and the flywheel cylindrical surface. The clutch cover is thus secured onto the flywheel in an assembly stage of reduced steps, by comparison with methods employing bolts or other fasteners as the primary connecting means.

Abstract: This invention is applicable to an automobile air clutch. An output side clutch disc (54) is disposed between an input side flywheel (50) and an annular plate (53) integral with the flywheel, two friction facings (60) of the clutch disc (54) are connected by a fluid actuator (59), and the friction facings (60) are moved in their axial direction by expansion or contraction of the actuator (59) so as to engage or disengage a clutch. In this way, reduction in overall dimension of clutch and prevention of faulty cut-off of clutch can be accomplished.

Abstract: A clutch disc having an organic facing for a light load and a cerametallic facing for a heavy load which are arranged adjacently in a circumferential direction of a driven plate. The organic facing is mounted on a reinforcing plate. A cushion is provided behind the organic facing for mounting such organic facing on the driven plate. A reinforcing plate is provided between the cerametallic facing and the driven plate and the cerametallic facing is fixed to such reinforcing plate with an adhesive.

Abstract: A pull-type clutch for connecting a flywheel to a transmission and having clutch discs spline fitted onto an input shaft of the transmission, a sleeve on the outer periphery of the input shaft, a release bearing fastened to the transmission end of the sleeve, a flange portion formed on the flywheel end of the sleeve and projecting toward the outer periphery, a load transmitting retainer on the sleeve pressed to the flange portion, a clutch cover connected to the flywheel and covering a pressure plate for pressing the clutch discs into engagement with the flywheel, a disc-formed spring member disposed between the clutch cover and the retainer, levers for transmitting spring force of the spring member disposed between the retainer and the pressure plate at plural circumferential locations and pins between the retainer and the clutch cover for sliding movement of the retainer relative to the clutch cover.

Abstract: A pull-type clutch which is released by pulling a release bearing toward the transmission with a releasing lever connected to a clutch pedal, includes clutch discs which are spline fitted onto an input shaft of a transmission. A sleeve part of a releasing retainer is provided on an outer periphery of the input shaft with a release bearing fastened to the transmission and of the sleeve part. A retainer part is integrally formed into one piece with the sleeve part and is located at the flywheel end of the sleeve part. A spline is provided on the sleeve part and fits into a spline groove on the clutch cover for permitting axial sliding of the releasing retainer while preventing rotation of the releasing retainer relative to the clutch cover.

Abstract: In a pull-type clutch which performs release operation through a load transmission lever disposed between a load transmission retainer and a pressure plate, the load transmission lever comprising protrusions provided on its base end portion at which the lever is in engagement with an annular groove of the retainer and projecting toward abutment surfaces of the groove.

Abstract: A clutch brake (A) having a brake assembly (B) connectable to a rotatable shaft (3) with driving action accompanied and a cover assembly (C) providing external friction surfaces (29) and (30) and supported rotatably relatively to a brake assembly (B); characterized by that rivets (26) are provided which slidingly connect approximately disc-like, facing-each-other two cover elements (19) and (24) composing a cover assembly (C) with a specified axial clearance (L) left therebetween, an approximately disc-like spring member (31) for pressing the brake assembly (B) is interposed between the cover assembly (C) and the brake assembly (B), the clearance (L) between the cover elements (19) and (24) being so set that a spring force of the spring member (31) is not transmitted to the brake assembly (B) in an initial state where the cover assembly (C) is not pressed and the spring force of the spring member (31) is transmitted to the brake assembly (B) in an engaged state where the cover assembly (C) is pressed.

Abstract: A clutch brake having a brake assembly interconnected to a rotatable shaft through means of driving function and a cover assembly provided with an external friction surface and carried rotatably in relation to said brake assembly; characterized by that a coned disc spring is interposed in said cover assembly, and a friction plate composing said cover assembly is pressed on a friction member composing said brake assembly by means of said coned disc spring.

Abstract: A clutch having an adjustable diaphragm spring engaging lever and a release bearing for disengaging the clutch. The clutch disc is spline fitted onto an input shaft of transmission. A sleeve, having the release bearing fastened at its transmission end, is fitted on the outer periphery of the input shaft. A load transmitting retainer is fitted on the clutch end of the sleeve. A clutch cover, covering the clutch and flywheel is mounted on the flywheel. A diaphragm spring is disposed between the clutch cover and the retainer. A clutch lever is fulcrummed at its inner end to a groove in the retainer ring and at its outer end to an adjustable member on the clutch cover for engaging and disengaging the clutch disc with the pressure plate and flywheel.

Abstract: A clutch cover assembly including a clutch cover having a plurality of circumferentially spaced tabs around its inner periphery and radially inwardly projecting projections intermediate such tabs, a diaphragm spring having a plurality of slits aligned with the tabs, each of the tabs passing through a slit, a pair of wire rings on opposite sides of the diaphragm spring, the ends of the tabs passing through the slits being bent around the wire ring at one side of the diaphragm spring to engage such wire ring with one side of the diaphragm spring and to clamp the wire ring at the other side of the diaphragm spring between the diaphragm spring and the inside of the clutch cover and a removable spacer ring between the inside of the clutch cover projection and the diaphragm spring to hold the diaphragm spring compressed on the inside of the cover.

Abstract: The present invention discloses a facing assembly of a friction clutch disc comprising facing fixing plate having plural apertures and arranged at radially outer portion of the clutch disc; and a pair of facings disposed on both faces of the fixing plate, said facings having connecting portions entered into the apertures and integrally connecting both facings together so that the facings may be fixed to the plate. A total sectional area of the connecting portions in radially outer portions of the facings is preferably larger than a total sectional area of the connecting portions in radially inner portions of the facings.

Abstract: This invention relates to a release assistor which completely separates a facing surface on a clutch disc periphery from a driving fly-wheel by a prescribed distance when releasing a friction clutch. According to this invention, a sufficient retraction force and a required retraction stroke can be obtained within a narrow space in a clutch, and thus an improved durability of the release assistor is provided.