Clutch device

Patent metadata

Field	Value
Publication number	US-11085496-B2
Application number	US-201916702671-A
Country	US
Kind code	B2
Filing date	Dec 4, 2019
Priority date	Dec 11, 2018
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

A clutch device includes a clutch housing including a cylindrical portion and a bottom, a multiple disc clutch, a receiving member and a pressing member that moves in an axial direction with respect to the clutch housing to press the multiple disc clutch from the bottom side toward the receiving member. The pressing member includes an annular portion disposed radially inward or outward of the bottom and a plurality of protruding portions protruding in a radial direction from the annular portion, the annular portion being provided integrally with the protruding portions. The bottom of the clutch housing has a plurality of cutouts that accommodate the protruding portions. The protruding portions move in the axial direction within the cutouts to press the multiple disc clutch.

First claim

What is claimed is:

1. A clutch device, comprising:
a clutch housing including a cylindrical portion and a bottom extending inward in a radial direction from one end of the cylindrical portion;
a multiple disc clutch including a plurality of clutch plates accommodated in the cylindrical portion;
a receiving member attached to an open end of the clutch housing; and
a pressing member that moves in an axial direction with respect to the clutch housing to press the multiple disc clutch from the bottom side toward the receiving member, wherein
the pressing member has a flat plate shape and includes an annular portion disposed radially inward or outward of the bottom and a plurality of protruding portions protruding in the radial direction from the annular portion, the annular portion being provided integrally with the protruding portions, the bottom of the clutch housing includes a plurality of cutouts that accommodate the protruding portions, and the protruding portions move in the axial direction within the cutouts to press the multiple disc clutch.

2. The clutch device according to claim 1 , wherein
the annular portion is disposed radially outward of the bottom of the clutch housing, the protruding portions protrude inward in the radial direction from the annular portion, and the cutouts are provided in an outer peripheral end of the bottom and an end on the bottom side of the cylindrical portion.

3. The clutch device according to claim 1 , wherein
the annular portion is disposed radially inward of the bottom of the clutch housing, the protruding portions protrude outward in the radial direction from the annular portion, and the cutouts are provided in an inner peripheral end of the bottom.

4. The clutch device according to claim 1 , wherein
a thickness of the annular portion and a thickness of each of the protruding portions are equal to each other and the annular portion and the protruding portions constitute an integral unit.

5. The clutch device according to claim 1 , wherein
the pressing member includes a plurality of plate members stacked in the axial direction.

6. A clutch device, comprising:
a clutch housing including a cylindrical portion and a bottom extending inward in a radial direction from one end of the cylindrical portion;
a multiple disc clutch including a plurality of clutch plates accommodated in the cylindrical portion;
a receiving member attached to an open end of the clutch housing; and
a pressing member that moves in an axial direction with respect to the clutch housing to press the multiple disc clutch from the bottom side toward the receiving member, wherein
the pressing member includes an annular portion disposed radially inward or outward of the bottom and a plurality of protruding portions protruding in the radial direction from the annular portion, the annular portion being provided integrally with the protruding portions, the bottom of the clutch housing includes a plurality of cutouts that accommodate the protruding portions, and the protruding portions move in the axial direction within the cutouts to press the multiple disc clutch, and
the annular portion is disposed radially outward of the bottom of the clutch housing, the protruding portions protrude inward in the radial direction from the annular portion, and the cutouts are provided in an outer peripheral end of the bottom and an end on the bottom side of the cylindrical portion.

Assignees

• Jtekt Corp

Inventors

• Fujii Noriyuki

Classifications

• F16D25/082

  the line of action of the fluid-actuated members co-inciding with the axis of rotation · CPC title

• F16D25/10

  Clutch systems with a plurality of fluid-actuated clutches (arrangements or mounting of clutches in vehicles B60K17/00) · CPC title

• F16D25/083 Primary

  Actuators therefor (F16D25/085 - F16D25/087 take precedence) · CPC title

• F16D2125/06

  Pistons · CPC title

• F16D25/086

  the clutch being actuated by a push rod extending coaxially through the input or output shaft · CPC title