Aisin Aw Industries Co., Ltd.

Aisin Aw Co., Ltd.

Aisin Corporation

Aki Ogawa

Takuya Yoshikawa

Masaki Wajima

Akiyoshi Kato

Ryosuke Otsuka

Yoshihiro Takikawa

Yoichi Oi

Tomonori Kinoshita

Kazuyoshi Ito

Kazuhiro Itou

Hiroki Nagai

Yuichiro Hirai

Takayuki Miyaoka

Makoto Yamaguchi

Takao Sakamoto

Yuji Kanyama

Masahiro Hata

Yoshihiro Yoshida

Katsunori Tanaka

Kotaro Tsuda

Makoto Ueno

Naohisa Yamashita

Koichiro Ida

Yu Mizukami

Yoshihiro Inoue

A damper device including an input element to which a torque from an engine is transmitted; an output element; an elastic body to transmit torque between the input element and the output element; and rotary inertia mass damper having a mass body that rotates in accordance with a relative rotation of the input element and the output element. The output element is coupled to a rotor of an electric motor, which is coupled to an input shaft of a transmission. The rotary inertia mass damper includes a planetary gear mechanism having a carrier that supports pinion gears, the carrier is a part of the input element, one of the sun gear and the ring gear is a part of the output element, and the other of the sun gear and the ring gear functions as the mass body.

Damper device

A damper device includes an input element; an intermediate element; art output element; a first elastic body that transmits a torque between the input element and the intermediate element; and a second elastic body that transmits a torque between the intermediate element and the output element. The damper device also includes a rotary inertia mass damper that includes a first mass body rotating in accordance with relative rotation between the input element and the output element and that is arranged between the input element and the output element to be parallel to a torque transmission path including the first elastic body, the intermediate element and the second elastic body. Finally, the damper devices includes a second mass body; and an elastic body arranged to couple the second mass body with the output element.

A damper device includes an input element to which a torque from an engine is transmitted, an output element, an elastic body arranged to transmit a torque between the input element and the output element, and a rotary inertia mass damper that includes a planetary gear that includes a sun gear arranged to rotate integrally with one element of the input element and the output element, a carrier that rotatably supports a plurality of pinion gears and is arranged to rotate integrally with the other element of the input element and the output element, and a ring gear that meshes with the plurality of pinion gears and works as a mass body. The other element includes two plate members that are opposed to each other and coupled with each other by means of a plurality of rivets disposed between the pinion gears.

A damper device includes a plurality of rotational elements, a plurality of elastic bodies, a rotary inertia mass damper and a housing that houses the plurality of rotational elements, the plurality of elastic bodies and the rotary inertia mass damper, the housing including a front cover. The rotary inertia mass damper is configured to include a planetary gear that includes a sun gear, a plurality of pinion gears, and a carrier that rotatably supports the plurality of pinion gears. The carrier is centered by either the sun gear or a member that rotates integrally with the sun gear by being radially supported by either the sun gear or the member that rotates integrally with the sun gear. In addition, the carrier is spline-engaged to the front cover when a lockup clutch is engaged.

A drive member of a damper device includes a first input plate member and a second input plate member that rotatably support a plurality of pinion gears of a planetary gear of a rotary inertia mass damper. A driven member includes an outer teeth gear portion that meshes with the pinion gear in an outer circumferential portion thereof and is disposed between the first and the second input plate members in an axial direction so as to work as a sun gear of the planetary gear. A stopper is configured to restrict the relative rotation between the drive member and the driven member and includes a contact portion arranged in the outer circumferential portion of the driven member so as to contact with the first input plate member.

An intermediate member includes first and second intermediate members. The first and the second intermediate members are provided with a spring supporting portion that extends along springs and supports the springs from an outer side. An expansion and contraction of the springs enables the intermediate member to be movable in a circumferential direction. Accordingly, sliding distances caused by the expansion and contraction of the first and the second springs become shorter, compared with a configuration where the first and the second spring are supported by the driven member or drive member from the outer side, thereby decreasing an energy loss (hysteresis) caused by the sliding. As a result, a vibration damping performance of the damper device can be improved.

An intermediate member is configured to include first and second intermediate members. Connecting portions that respectively extend outward from the first or the second intermediate plates are coupled with each other at two positions on the same circumference as pinion gears by two rivets (total six rivets at three connecting portions) as viewed in a central axis of the damper device. Such an arrangement enables spaces between the pinion gears to be used effectively, increases spaces for the first spring, the second spring and the inner spring and improves a vibration damping performance of a damper device.

A rotary inertia mass damper of a damper device is configured to include a planetary gear that includes a driven member with outer teeth, first and second input plate member as a carrier which rotatably supports a plurality of pinion gears, and a ring gear that meshes with the plurality of pinion gears and works as the mass body. The outer teeth of the driven member are arranged to be disposed outside first and second springs in a radial direction of the damper device. The driven member, the plurality of pinion gears and the ring gear are arranged to at least partially overlap with the first and second springs as viewed in the radial direction. A motion of the ring gear in the axial direction is restricted by the plurality of pinion gears.

Six through holes are formed in pinion gear supporting portions of two input plate members working as a carrier that supports pinion gears of a rotary inertia mass damper. The two input plate members are opposed to each other in such a manner that the through holes are aligned with each other. The through holes support the pinion gear. The input plate members are coupled with each other by means of rivets passing through the through holes located on both sides of the through holes. This configuration ensures strength (rigidity) of the carrier, suppresses deformation of a planetary gear, and improves meshing accuracy of gears.

A damper device of a starting device includes a drive member, a driven member, outer springs that transmit torque between the drive member and the driven member, first and second inner springs that are placed inward of the outer springs and that transmit torque between the drive member and the driven member, and a dynamic damper having third springs coupled to a first intermediate member as a rotary element and a turbine runner as a mass body coupled to the third springs. The third springs of the dynamic damper are disposed so as to be located next to the outer springs of the damper device in the circumferential direction.

Damper device and starting device

A damper device includes first inner springs configured to transmit a torque between a drive member and an intermediate member, second inner springs configured to transmit a torque between the intermediate member and a driven member, and a rotary inertia mass damper including a sun gear serving as a mass body rotating with relative rotation of the drive member to the driven member. The rotary inertia mass damper is provided in parallel to a torque transmission path including the intermediate member, the first inner springs and the second inner springs. A damping ratio &#x3b6; of the intermediate member determined based on a moment of inertia Jof the intermediate member and rigidities kand kof the first and the second inner springs and is less than a value.

A damper device includes a dynamic damper that has third springs coupled to an intermediate member and that also has, as a mass body coupled to the third springs, a turbine runner and a coupling member etc. The third springs of the dynamic damper are disposed so as to overlap both in the axial and radial directions of the damper device second springs that have higher rigidity than first springs and that are disposed inward of the first springs to transfer torque between a drive member and a driven member.

A centrifugal-pendulum vibration absorbing device disposed within a liquid chamber that stores a liquid, the centrifugal-pendulum vibration absorbing device having a support member coupled to a rotary element that is rotated by power from a drive device; and a mass body supported by the support member so as to be swingable. An order of vibration of the mass body is determined on the basis of an order of vibration to be damped generated by the drive device in consideration of at least a force caused by a centrifugal liquid pressure generated within the liquid chamber along with rotation of the drive device to act on the mass body.

Centrifugal-pendulum vibration absorbing device and order setting method for the same

A damper deviceincludes a dynamic damperthat has third springs SPcoupled to an intermediate memberand that also has, as a mass body coupled to the third springs SP, a turbine runner, a coupling member, etc. The third springs SPof the dynamic damperare disposed so as to overlap both in the axial and radial directions of the damper devicesecond springs SPthat are disposed inward of the first springs SPto transfer torque between a drive memberand a driven member. A plane PL including the axes of the third springs SPand perpendicular to the axis of the damper deviceis included in the range of the thickness of spring contact portionsof the coupling memberin the axial direction of the damper device

A centrifugal-pendulum vibration absorbing device comprising having a support member coupled to a rotary element that is rotated by power from a drive device, and a mass body coupled to the support member so as to swing about a pendulum fulcrum and rotate about a center of gravity. An order of vibration of the mass body is determined on the basis of an order of vibration to be damped generated by the drive device in consideration of at least a rotational angle of the mass body about the pendulum fulcrum and a rotational angle of the mass body about the center of gravity.

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Echizen, Japan

Aki Ogawa