Abstract: An ink refill container includes a container main body including an ink storage chamber, an ink outlet-forming portion provided on an end portion of the container main body forming an ink outlet that allows the ink to flow out from the ink storage chamber, and a valve provided in the ink outlet-forming portion configured to openably seal the ink outlet, in which the ink outlet-forming portion includes a positioning portion on an outer side of the ink outlet-forming portion. in which the positioning portion is closer to the container main body than the valve is to the container main body in a central axis direction of the ink outlet, and in which the positioning portion partially abuts against an ink tank when the valve is opened for refilling the ink to the ink tank, to thereby position the valve relative to the ink tank.

Abstract: A manufacturing method of a ceramic fired body includes forming a composition of ceramic raw material containing water to make a ceramic molded body. The ceramic molded body is irradiated with a microwave under a depressurized atmosphere of about 1 KPa or more and about 50 kPa or less to dry the ceramic molded body. The ceramic molded body is fired to make the ceramic fired body.

Abstract: In order to provide a reliable connection between a circular plate mounted on a hub and a friction material having a pair of oppositely faced friction surfaces extending in the axial direction in a clutch disc, a sub plate is secured to the circular plate. This permits the interposition therebetween of frictional material in such a manner that a plurality of axial openings are provided in the circular plate and the sub plate and the friction surfaces project from each opening in opposite axial direction.

Abstract: An automotive vehicle clutch disc apparatus has a clutch hub provided with arm portions and an outer two-piece housing including, a clutch hub connected to a manual transmission, a stopper connected integrally with the clutch hub, a resilient element wrapping outward of the clutch hub, the stopper having a plurality of lugs, the housing having plurality of openings, the lugs are operatively connected to the opening and the clutch hub equipped with the resilient element applied to an initial deformation during assembly.

Abstract: A clutch releasing device for positively releasing a clutch disc assembly from a flywheel of automotive vehicles which includes a first member disposed between the clutch disc assembly and a pilot bearing for receiving the extreme end of the transmission input shaft and which is in contact with the side face of an inner race of the pilot bearing, a second member operatively connected to the clutch disc assembly with respect to axial movement thereof and an annular resilient member disposed between the first member and the second member so as to cause the deformation of the annular resilient member when clutch is engaged. When the clutch is released, the clutch disc assembly is released by the resiliency of the annular resilient member from the flywheel until the annular resilient member returns to its original shape.

Abstract: A clutch assembly for use with a vehicle's internal combustion engine, including a driving flywheel connected to an engine output, a driven flywheel rotatably mounted on the driving flywheel through a flanged bush, coil springs provided between the driving flywheel and the driven flywheel for imparting the rotational torque therebetween, and damping elements provided therebetween for absorbing vibration due to the fluctuating torque produced by the engine. The damping elements comprise a thrust washer, a friction plate and a dish spring which normally urges the driven flywheel toward the driving flywheel.