Ball joint with locking ball socket assembly
AssigneeRobert Bosch GmbH
InventorScott Koppen
Life of this patent
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Abstract
A wiper actuating assembly configured to actuate a windshield wiper arm includes an actuator and a linkage that connects the actuator to the wiper arm. Links of the linkage are joined by ball joints. The ball joints each include a ball stud and a ball socket. The ball portion of the ball stud has an annular ball groove that receives a retaining portion that protrudes inward from the inner surface of the ball socket. The ball groove and retaining portion cooperate to prevent withdrawal of the ball stud from the socket housing.
Claims16
A ball joint comprising a ball stud and a ball socket, wherein
- the ball stud includes
- a cylindrical shank, and
- a ball portion disposed on one end of the shank, the ball portion including a ball major diameter defined by a line that is perpendicular to a longitudinal axis of the shank and intersects the spherical element at a location of maximum diameter, the ball portion including an annular ball groove that is parallel to the ball major diameter and disposed on a side of the ball major diameter that is opposed to the shank;
- the ball socket includes
- a ball socket first end,
- a sidewall that surrounds a periphery of the ball socket first end,
- a ball socket second end opposed to the ball socket first end, the ball socket second end being open and defined by a free edge of the sidewall, and
- a ball socket longitudinal axis that is perpendicular to the ball socket first end and the ball socket second end,
- wherein
- the sidewall includes an inner surface that has a spherical portion and a retaining portion,
- the spherical portion receives the ball portion therein, the spherical portion having a shape and dimensions that are complementary to the shape and dimensions of the ball portion,
- the retaining portion protrudes inward from the inner surface and including a terminal edge that resides within the ball groove,
- the ball socket first end is closed via a detachable cover that provides a fluid seal at the ball socket first end,
- the detachable cover includes an end portion and an annular rim,
- the rim protrudes from an inner surface of the end portion in a direction parallel to the ball socket longitudinal axis,
- the peripheral edge of the end portion rests on the ball socket first end, and
- the rim abuts the sidewall inner surface in a press-fit relationship with respect to the sidewall inner surface whereby the detachable cover is retained on the ball socket first end.
A link assembly, comprising
- a link having a first end including a first opening;
- a ball joint that includes a ball stud and a ball socket, wherein
- the ball stud having
- a cylindrical shank, and
- a ball portion disposed on one end of the shank, the ball portion including a ball major diameter defined by a line that is perpendicular to a longitudinal axis of the shank and intersects the spherical element at a location of maximum diameter, the ball portion including an annular ball groove that is parallel to the ball major diameter and disposed on a side of the ball major diameter that is opposed to the shank;
- and
- the ball socket disposed in the first opening, the ball socket having
- a first end,
- a sidewall that surrounds a periphery of the first end,
- a second end opposed to the first end, the second end being open and defined by a free edge of the sidewall, and
- a ball socket longitudinal axis that is perpendicular to the first end and the second end,
- wherein
- the sidewall includes an inner surface that has a spherical portion and a retaining portion,
- the spherical portion receives the ball portion therein, the spherical portion having a shape and dimensions that are complementary to the shape and dimensions of the ball portion, and the retaining portion protrudes inward from the inner surface and including a terminal edge that resides within the ball groove,
- the first end is closed via a detachable cover that provides a fluid seal at the first end,
- the detachable cover includes an end portion and an annular rim,
- the rim protrudes from an inner surface of the end portion in a direction parallel to the ball socket longitudinal axis,
- the peripheral edge of the end portion rests on the first end. and
- the rim abuts the sidewall inner surface in a press-fit relationship with respect to the sidewall inner surface whereby the detachable cover is retained on the first end.
A wiper actuating assembly configured to actuate a wiper arm, the assembly comprising
- an actuator;
- a linkage that connects the actuator to the wiper arm, the linkage including
- a link having a first end including a first opening;
- a bail joint that includes a ball stud and a ball socket, wherein
- the ball stud having
- a cylindrical shank, and
- a ball portion disposed on one end of the shank, the ball portion including a ball major diameter defined by a line that is perpendicular to a longitudinal axis of the shank and intersects the spherical element at a location of maximum diameter, the ball portion including an annular ball groove that is parallel to the ball major diameter and disposed on a side of the ball major diameter that is opposed to the shank;
- and
- the ball socket disposed in the first opening, the ball socket having
- a first end,
- a sidewall that surrounds a periphery of the first end,
- a second end opposed to the first end, the second end being open and defined by a free edge of the sidewall, and
- a ball socket longitudinal axis that is perpendicular to the ball socket first end and the ball socket second end,
- wherein
- the sidewall includes an inner surface that has a spherical portion and a retaining portion,
- the spherical portion receives the ball portion therein, the spherical portion having a shape and dimensions that are complementary to the shape and dimensions of the ball portion, and
- the retaining portion protrudes inward from the inner surface and including a terminal edge that resides within the ball groove,
- the first end is closed via a detachable cover that provides a fluid seal at the first end,
- the detachable cover includes an end portion and an annular rim,
- the rim protrudes from an inner surface of the end portion in a direction parallel to the ball socket longitudinal axis,
- the peripheral edge of the end portion rests on the first end, and
- the rim abuts the sidewall inner surface in a press-fit relationship with respect to the sidewall inner surface whereby the detachable cover is retained on the first end.
Dependencies are inferred from the claim text.