Toyota Jidosha Kabushiki Kaisha

Toyota Jidosha Kogyo Kabushiki Kaisha

Nok-megulastik Co., Ltd.

Aisin Seiki Kabushiki Kaisha Kariya

Kaoru Wakahara

Mitsuhiro Umeyama

Masaki Inui

Nobuyuki Kobayashi

Kiyonori Kobayashi

Masakazu Kamiya

Yasuyoshi Yasui

Mototaka Nakane

Junji Kagiyama

Kenichi Yamamoto

Masaki Hosono

Hisao Ohtani

Yoshio Sanui

Masaru Kinoshita

Kenichi Kametaka

An apparatus for absorbing torque vibration comprises inertial bodies comprising first and second flywheels, and a damper mechanism, torque limiting mechanism and hysteresis mechanism interposed between the first and second flywheels. The rotation is transmitted between both flywheels via damper mechanism, torque limiting mechanism and hysteresis mechanism. Resilient members are secured to spring seats, which are engaged with both ends of a spring of the damper mechanism, at an inner-half portion of the spring seat closer to the axis of said flywheels than an axial line of the spring. Excess compression of the resilient members is prevented.

Apparatus for absorbing torque variation

A torsional damper type flywheel device wherein at least one of flywheel device components, for example, a spring connecting a drive side and a drive side of the flywheel device is asymmetric with respect to an axis of rotation of the flywheel device to form a total, original imbalance with respect to the axis of rotation. The flywheel device includes a compensating imbalance which is equal and opposite to the original imbalance as a vector and is equally divided into two portions each distributed to each of the drive side and the driven side. The compensating imbalance is formed in the drive side and the driven side before assembly of the flywheel device. When the drive side and driven side rotate relative to each other by a torsional angle .theta. and thus a gravity center of the asymmetrically arranged spring rotates by an angle .theta./2 about the axis of rotation, a vector defined by the two portions of the compensating imbalance also rotates by the angle .theta./2 about the axis of rotation. As a result, the flywheel device is maintained in balance at all torsional angles.

Torsional damper type flywheel device

A clutch damper for absorbing vibrations occurring during transmission of torque in a clutch mechanism for automobiles or the like, wherein a plurality of buffer members stepwisely operated are provided between a hub slipped over a shaft and a clutch disc, and a spacer member for restraining a play of the members to transmit the torque smoothly is provided.

Clutch damper

In a final drive gearing of a power transmission unit, which comprises a drive pinion shaft supported by a pair of axially spaced bearings carried on an upright partition wall of a trans-axle casing and including a pinion in mesh with a crown wheel, an abdominal cavity is provided on the partition wall to receive lubrication oil dipped up by rotation of the crown wheel, and a lateral hole is provided through the partition wall to communicate the cavity into an annular space around the drive pinion shaft between the bearings.

Lubricating device for final drive gearing of power transmission unit

Growing community of inventors

Toyota, Japan

Kaoru Wakahara