Patent ID: 11964646
Assignee: ZF CV SYSTEMS EUROPE BV
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A foot brake valve (2′″) of a pneumatic brake system in a motor vehicle, the foot brake valve comprising:
an installation plate (4′, 4″), on which a brake pedal (14) is pivotably mounted and to which a housing (18′, 18″; 28) of a control unit (16, 26) is fastened,
a spring-loaded plunger piston (36) in an actuating contact with the brake pedal (14) and guided axially movably in a first annular collar (50, 72), which projects upward out of the installation plate (4′, 4″),
wherein the housing (18′, 18″) of the control unit (16) arranged directly beneath the installation plate (4′, 4″) has an intermediate flange (48, 70) which is screw-connected to the main part of the housing (18′, 18″) and which has the first annular collar (50, 72), and wherein the intermediate flange (48, 70) is, with the first annular collar (50, 72), guided in a passage opening (40, 40′) of the installation plate (4′, 4″) coaxially rotatably about a vertical central axis (32), and is connectable in a non-positively locking fashion to the installation plate (4′, 4″) via a releasable clamping connection (62, 76, 77);
wherein the clamping connection (77) is formed by a clamping screw connection (79) which comprises the following:
a second annular collar (42) on a top side of the installation plate (4″) with an external thread (44) and with a conical, axially downwardly narrowing inner wall (46),
a clamping ring (81) with a conical, axially downwardly narrowing outer wall (82) and with a cylindrical inner wall (84),
a cylindrical outer wall (74) on the first annular collar (72) of the intermediate flange (70), and
a sleeve nut (86) with an internal thread (88),
an external thread (90) on the first annular collar (72) of the intermediate flange (70), and
an internal thread (92) on the inner wall (84) of the clamping ring (81),
wherein the internal thread (92) of the clamping ring (81) is, in an installed state, screw-connected to the external thread (90) of the intermediate flange (70), and wherein radial bracing of the first and second annular collars (42, 72) is caused by the clamping ring (80) as a result of a screw connection of the sleeve nut (86) to the second annular collar (42) of the installation plate (4″).