Anti-vibration mechanism for a clutch pedal

• US 4,924,992 A
• Filed: 09/14/1989
• Issued: 05/15/1990
• Est. Priority Date: 09/14/1989
• Status: Expired due to Fees

• Current Assignee: General Motors Auto OOO (General Motors Company)
• Original Assignee: General Motors Corporation (Motors Liquidation Co. GUC Trust)
• Inventors: Romig, Kenneth L.
• Primary Examiner(s): Bonck, Rodney H.
• Assistant Examiner(s): Whitelaw, Nicholas
• Application Number:
  US07/407,171
• Time in Patent Office: 243 Days
• Field of Search: 192/30 V, 192/85 C, 192/109 F
• US Class Current: 192/30.00V
• CPC Class Codes: F16D 2048/0215 for damping of pulsations within the fluid system
• CPC Class Codes: F16D 2300/22 Vibration damping
• CPC Class Codes: F16D 25/14 Fluid pressure control
• CPC Class Codes: F16D 48/02 Control by fluid pressure

Abstract

An anti-vibration system (10) for the foot pedal (11) of a hydraulic clutch release system (9) utilizes a pulse dissipating canister (30) interposed between a first conduit portion (20) and a second conduit portion (21). The first conduit portion (20) communicates between a slave cylinder (22) and the canister (30), and the second conduit portion (21) communicates between a master cylinder (15) and the canister (30). The canister (30) has a hollow interior chamber (31), which is axially bounded by laterally spaced, circular front and rear walls (32 and 34, respectively) and circumferentially bounded by an annular wall (34) which extends between the front and rear walls (32 and 33) to define the outer periphery of the canister (30). The first conduit portion (20) communicates with the hollow interior chamber (31) of the canister (30) through the center portion of the front wall (32). The second conduit portion (21) communicates with the hollow interior chamber (31) of the canister (30) along the medial portion of the annular wall (34). A plurality of resilient washers (45) may be utilized to isolate the conduit portions (20 and 21) from the floorboard (44) of the vehicle in which the anti-vibration system is installed, and a relatively short length of a flexible, radially resistant conduit portion (50) may be interposed between the canister (30) and the second conduit portion (21).

Claims

1. An anti-vibration mechanism for a foot pedal of a hydraulically actuated clutch release system comprising:

a foot pedal;

a master cylinder operated by said foot pedal;

a clutch;

a slave cylinder located remotely of said master cylinder and operatively connected to said clutch;

conduit means communicating between said master and said slave cylinders; and

a canister interposed within said conduit means to define a first portion of said conduit means which extends between said slave cylinder and said canister and second portion of said conduit means which extends between said master cylinder and said canister;

said canister having a hollow, cylindrical, interior chamber that is bounded by opposed, laterally spaced, generally planar, circular front and rear walls and a generally annular wall defining the perimeter of said canister;

said first portion of said conduit means communicating with the hollow, interior chamber of said canister at approximately the center of said front wall;

said second portion of said conduit means communicating with the hollow, interior chamber of said canister through said annular wall.

2. An anti-vibration mechanism, as set forth in claim 1, further comprising:

a flexible, radially resilient conduit portion inserted within said second portion of said conduit means.

3. An anti-vibration mechanism for a foot pedal of a hydraulically actuated clutch release system comprising:

a floorboard;

a foot pedal movable with respect to said floorboard;

a master cylinder operated by said foot pedal;

a clutch;

a slave cylinder located remotely of said master cylinder and operatively connected to said clutch;

a conduit communicating between said master and said slave cylinders;

connectors securing at least a portion of said conduit to said floorboard;

resilient, isolating washers associated with said connectors and interposed between said conduit and said floorboard; and

a canister interposed within said conduit to define a first portion of said conduit which extends between said slave cylinder and said canister and a second portion of said conduit which extends between said master cylinder and said canister;

said canister having a hollow, cylindrical, interior chamber that is bounded by opposed, laterally spaced, generally planar, circular front and rear walls and a generally annular wall defining the perimeter of said canister;

said first portion of said conduit communicating with the hollow, interior chamber of said canister at approximately the center of said front wall;

said second portion of said conduit communicating with the hollow, interior chamber of said canister through said annular wall.

4. An anti-vibration mechanism, as set forth in claim 3, further comprising:

a flexible, radially resilient conduit portion inserted between said canister and said second portion of said conduit.

5. An anti-vibration mechanism for the foot pedal of a hydraulically actuated clutch release system comprising:

a floorboard;

a foot pedal movable with respect to said floorboard;

a master cylinder operated by said foot pedal;

a clutch;

a slave cylinder located remotely of said master cylinder and operatively connected to said clutch;

a conduit communicating between said master and said slave cylinders;

connectors securing at least a portion of said conduit to said floorboard;

resilient, isolating washers associated with said connectors and interposed between said conduit and said floor board;

a canister interposed within said conduit to define a first portion of said conduit which extends between said slave cylinder and said canister and second portion of said conduit which extends between said master cylinder and said canister;

said canister having a hollow, cylindrical interior chamber that is bounded by opposed, laterally spaced, generally planar, circular front and rear walls and a generally annular wall defining the perimeter of said canister;

said first portion of said conduit communicating with the hollow, interior chamber of said canister at approximately the center of said front wall;

said second portion of said conduit communicating with the hollow, interior chamber of said canister through the medial portion of said annular wall; and

, a flexible, radially resilient conduit portion inserted within said second portion of said conduit.