Damping device for clutch actuating device

Patent metadata

Field	Value
Publication number	US-10316871-B2
Application number	US-201715833499-A
Country	US
Kind code	B2
Filing date	Dec 6, 2017
Priority date	Nov 1, 2017
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

A damping device for a clutch actuating device is provided. The damping device includes a first cylinder that is connected to a master cylinder by a first hydraulic line and a second cylinder that is connected to an actuating cylinder by a second hydraulic line and is disposed at a position adjacent to the first cylinder in parallel. A first piston is disposed in the first cylinder and is moved forward and backward by a fluid pressure in the first cylinder. A second piston is disposed in the second cylinder and is moved forward and backward by a fluid pressure in the second cylinder. A pressure transmitting member is supported to perform a seesaw motion when both sides of the pressure transmitting member are in contact with a pressing portion of the first piston and a pressing portion of the second piston.

First claim

What is claimed is:

1. A damping device for a clutch actuating device, comprising:
a first cylinder connected to a master cylinder by a first hydraulic line;
a second cylinder connected to an actuating cylinder by a second hydraulic line and disposed at a position adjacent to the first cylinder in parallel;
a first piston disposed in the first cylinder and configured to be moved forward and backward by a fluid pressure in the first cylinder;
a second piston disposed in the second cylinder and configured to be moved forward and backward by a fluid pressure in the second cylinder; and
a pressure transmitting member supported to perform a seesaw motion when both sides of the pressure transmitting member are in contact with a pressing portion of the first piston and a pressing portion of the second piston.

2. The damping device according to claim 1 , further comprising:
a support pin configured to support the pressure transmitting member to cause the pressure transmitting member to perform the seesaw motion and configured to change a coupling position.

3. The damping device according to claim 2 , wherein a pedal force of the clutch pedal is adjusted by changing a distance between a contact point of the first piston and the pressure transmitting member to be shorter or longer than a distance between the support pin and a contact point of the second piston and the pressure transmitting member.

4. The damping device according to claim 2 , further comprising:
a housing configured to accommodate the first cylinder, the second cylinder, the first piston, the second piston, and the pressure transmitting member.

5. The damping device according to claim 4 , wherein the housing includes:
a body portion formed in a rectangular box shape and having one open side surface and an open bottom surface, in which the first cylinder and the second cylinder are fixed to an inner surface of the body in parallel with each other; and
a cover member configured to cover the open side surface and the open bottom surface of the body portion.

6. The damping device according to claim 4 , wherein the pressure transmitting member and the housing include a plurality of position adjusting apertures configured to change the coupling position of the support pin.

7. The damping device according to claim 2 , wherein the pressure transmitting member is formed in a flat plate shape, and the support pin is disposed in the pressure transmitting member to be changeable in position between the pressing portion of the first piston and the pressing portion of the second piston.

8. The damping device according to claim 1 , wherein the pressing portion of the first piston and the pressing portion of the second piston have spherical outer surfaces.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Kim Eun Sik

Classifications

• F16D2048/0215

  for damping of pulsations within the fluid system · CPC title

• F16D48/02

  Control by fluid pressure · CPC title

• F16D25/14

  Fluid pressure control · CPC title

• F15B2211/8616

  the abnormal condition being noise or vibration · CPC title

• F16D2300/22

  Vibration damping · CPC title