Title:
湿式多板クラッチ
Document Type and Number:
Japanese Patent JP6771558
Kind Code:
B2
Abstract:
A disk spring 46 is, at its outer peripheral part, is supported by a clutch drum 10 and contacts, at its inner peripheral part, with a spring presser part 12-1 of the piston 12. The disk spring 46 faces, at the side opposite the piston 12, with clutch pack 20. A forward movement of the piston 12 by operating pressure in a hydraulic chamber is transmitted to the clutch pack 20 via the disk spring 46, resulting in an engaged condition of the clutch pack 20. A driving force of the piston 12 by the hydraulic oil pressure is boosted under a lever ratio a/b of the disk spring 46 and is transmitted to the clutch pack 20. The disk spring 46 to the spring presser part 12-1 without obstructing the slide movement of the piston 12 of obtaining an increased radial length of the spring, resulting in an increased return force of the spring 46 for a positive reverse movement of the piston 12 for obtaining a disengaged condition of the clutch.
Inventors:
Hideyuki Narazu
Suzuki Ryosuke
Kazuhiro Ohta
Suzuki Ryosuke
Kazuhiro Ohta
Application Number:
JP2018525984A
Publication Date:
October 21, 2020
Filing Date:
June 07, 2017
Export Citation:
Assignee:
Unipres Corporation
International Classes:
F16D25/0638; F16D13/60; F16D25/12
Domestic Patent References:
| JP2002106598A | ||||
| JP6086627U | ||||
| JP1247827A | ||||
| JP56164228A | ||||
| JP2000120723A |
Attorney, Agent or Firm:
Takao Mitsui