Damper device

Patent metadata

Field	Value
Publication number	US-11719285-B2
Application number	US-201916653002-A
Country	US
Kind code	B2
Filing date	Oct 15, 2019
Priority date	Oct 17, 2018
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

A damper device includes an input shaft member to which a driving force from a crankshaft of an internal combustion engine is input, an output shaft member capable of outputting the driving force transmitted from the input shaft member, an input side cam and an output side cam respectively connected to the input shaft member and the output shaft member, and a damper bearing pivotable on the input side cam or the output side cam, wherein a damper bearing assembly has a bearing shaft supporting a plurality of damper bearings, bearing axes of the plurality of damper bearings are arranged along a bearing shaft axis of the bearing shaft, the bearing shaft is orthogonal to a rotation axis, and a shaft support portion supporting the bearing shaft, is provided between the adjacent damper bearings of the damper bearing assembly.

First claim

The invention claimed is:

1. A damper device comprising:
an input shaft member rotatable around a rotation axis such that a driving force of an internal combustion engine is input to the input shaft member;
an output shaft member rotatable around the rotation axis such that the driving force which was transmitted via the input shaft member, is output from the output shaft;
an input side cam and an output side cam arranged between the input shaft member and the output shaft member so as to respectively have opposing portions opposite each other in a rotation axis direction along the rotation axis, the input side cam and the output side cam respectively connected to the input shaft member and the output shaft member;
a damper bearing having an outer peripheral portion pivotable around a bearing axis on an opposing portion of one of the input side cam and the output side cam, the damper bearing arranged between the opposing portions of the input side cam and the output side cam in the rotation axis direction; and
an urging member urging the output side cam such that an opposing portion of the other of the input side cam and the output side cam abuts the outer peripheral portion of the damper bearing,
wherein a damper bearing assembly including a plurality of the damper bearings, is provided,
the damper bearing assembly has a bearing shaft supporting the plurality of damper bearings,
in the damper bearing assembly, bearing axes of the plurality of damper bearings are arranged along a bearing shaft axis extending in the longitudinal direction of the bearing shaft, and the plurality of damper bearings are arranged at intervals along the bearing shaft axis,
the bearing shaft axis of the bearing shaft of the damper bearing assembly is arranged orthogonal to the rotation axis, and
a shaft support portion supporting the bearing shaft, is provided between the damper bearings of the damper bearing assembly, which are adjacent to each other.

2. The damper device according to claim 1 , wherein the damper bearing assembly is arranged so as to protrude from the opposing portion of the input side cam,
the opposing portion of the output side cam has a recess recessed in correspondence with the damper bearing assembly, and
the shaft support portion is connected to the opposing portion of the input side cam.

3. The damper device according to claim 1 , wherein the bearing shaft has: a bearing shaft main body extending along the bearing shaft axis, the bearing shaft main body inserted into the plurality of damper bearings so as to support the plurality of damper bearings; and a stopper protruding from a proximal end portion in the longitudinal direction of the bearing shaft main body in a direction orthogonal to the bearing shaft axis, and
the bearing shaft main body is inserted into the plurality of damper bearings in a state in which the stopper is closer to a side of the rotation axis than the bearing shaft main body.

4. The damper device according to claim 1 , wherein a plurality of the damper bearing assemblies are arranged at intervals in a rotational peripheral direction around the rotation axis, and
the plurality of damper bearing assemblies are arranged in rotational symmetry around the rotation axis in a state in which no other damper bearing assembly different from one damper bearing assembly, is arranged on the opposite side across the rotation axis from the one damper bearing assembly in a direction orthogonal to the rotation axis.

5. The damper device according to claim 1 , wherein in the damper bearing assembly, outer peripheral portions of the plurality of damper bearings are inclined such that sizes of these outer peripheral portions gradually increase as these outer peripheral portions are spaced away from the rotation axis.

6. The damper device according to claim 1 , wherein the shaft support portion is connected to the opposing portion of the input side cam or to the opposing portion of the output side cam.

Assignees

• Suzuki Motor Corp

Inventors

• Inata Hiroki

Classifications

• F16D7/08 Primary

  moving axially between engagement and disengagement · CPC title

• B62M21/00

  Transmissions characterised by use of resilient elements therein · CPC title

• F16F15/1205 Primary

  with a kinematic mechanism, i.e. linkages, levers · CPC title

• F16F2230/0064

  using a cam · CPC title

• F16F15/121

  using springs as elastic members, e.g. metallic springs {(F16F15/133 takes precedence)} · CPC title