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A torsional vibration damper has an outer drive plate connected to a pair of retainer plates by an outer array of damping springs disposed partly in windows formed in the outer drive plate and partly in first windows formed in the retainer plates, and an inner drive plate which is connected to the r

A torsional vibration damper has an outer drive plate connected to a pair of retainer plates by an outer array of damping springs disposed partly in windows formed in the outer drive plate and partly in first windows formed in the retainer plates, and an inner drive plate which is connected to the retainer plate by an inner array of damping springs disposed partly in second windows formed in the retainer plates and partly in windows formed in the inner drive plate. The adjacent peripheries of the drive plates have a plurality of notches that are defined by radial tangs that are arranged in confronting pairs when the torsional vibration damper is in a neutral position. The retainer plates are spaced apart and connected to each other by drive blocks that are disposed partly in each notch of the outer drive plate and partly in each notch of the inner drive plate. The drive blocks engage the radial tangs of the drive plates to limit the relative angular displacements of the drive plates with respect to the retainer plates and the compression of the damping springs. The retainer plate carries an annular friction disk that is biased into engagement with the inner drive plate by a spring.

대표청구항 ▼

[ I claim:] [1.]1. A torsional vibration damper comprising an outer drive plate connected to a pair of retainer plates by means of an outer array of damping springs disposed partly in windows formed in the outer drive plate and partly in first windows formed in the retainer plates, and an inner driv

[ I claim:] [1.]1. A torsional vibration damper comprising an outer drive plate connected to a pair of retainer plates by means of an outer array of damping springs disposed partly in windows formed in the outer drive plate and partly in first windows formed in the retainer plates, and an inner drive plate which is connected to the retainer plates by means of an inner array of damping springs disposed partly in second windows formed in the retainer plates and partly in windows formed in the inner drive plate with the inner drive plate being mounted coaxially with respect to said outer drive plate and located within the space defined radially by the outer drive plate, characterized in that:the outer drive plate has an inner periphery and a plurality of notches in the inner periphery that are defined by a plurality of radial tangs and the inner drive plate has an outer periphery of notches in the outer periphery that are defined by a plurality of radial tangs, the radial tangs of the outer and inner drive plates being arranged in confronting pairs when the torsional vibration damper is in a neutral position;the retainer plates being spaced apart and connected to each other by means of individual drive blocks that are disposed partly in the notch of the outer drive plate and partly in the notch of the inner drive plate; andthe drive blocks have surfaces at each end for engaging the radial tangs of the outer drive plate and the radial tangs of the inner drive plate to limit the relative angular displacements of the outer drive plate and the inner drive plate with respect to the retainer plates.