US 11,543,002 B2Granted

Power transmission device

AssigneeExedy Corporation

InventorsYuki Kawahara, Hitoshi Katsura, Katsuaki Waki

Life of this patent

Estimating the term…

Loading patent…

Abstract

A power transmission device includes an input rotary member, an intermediate rotary member, an output rotary member, a friction engaging part and a load adjusting mechanism. A torque is inputted to the input rotary member. The torque is inputted from the input rotary member to the intermediate rotary member. The torque is outputted from the output rotary member. The friction engaging part is engaged by friction with a friction force depending on a load applied thereto. The friction engaging part is configured to transmit the torque between the intermediate rotary member and the output rotary member. The load adjusting mechanism is configured to adjust the load applied to the friction engaging part in accordance with the torque inputted to the input rotary member.

Claims10

Dependent claims

A power transmission device comprising:

an input rotary member to which a torque is inputted;
an intermediate rotary member to which the torque is inputted from the input rotary member, the intermediate rotary member being movable in an axial direction;
an output rotary member from which the torque is outputted;
a friction engaging part engaged by friction with a friction force depending on a load applied thereto, the friction engaging part configured to transmit the torque between the intermediate rotary member and the output rotary member;
a load adjusting mechanism configured to adjust the load applied to the friction engaging part in accordance with the torque inputted to the input rotary member, the load adjusting mechanism disposed axially between the input rotary member and the intermediate rotary member;
and
a first elastic member configured to elastically couple the input rotary member and the intermediate rotary member in a circumferential direction,
the intermediate rotary member being rotatable relative to the input rotary member and the output rotary member.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/283,127Filed 22 Feb 2019
Priority: JP JP2018-05088319 Mar 2018
Published: US 2019/0285121 A119 Sep 2019
Granted: 3 Jan 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16D 43/218
With axially applied torque-limiting friction surfaces: with conical friction surfaces
F16F 15/1297
Characterised by friction-damping means: overload protection, i.e. means for limiting torque
F16D 7/028
With axially applied torque limiting friction surfaces: with conical friction surfaces
F16D 2023/123
Mechanical clutch-actuating mechanisms arranged outside the clutch as such: clutch actuation by cams, ramps or ball-screw mechanisms