Arrangement of bearing and box for ball joint
AssigneeDana Industrial S/A
InventorsSheiiti Nakata, Walter Takeo Yagyu
Life of this patent
Estimating the term…
Abstract
A ball joint assembly having sealing caps made of elastomer enclosing openings at both extremities. One of the sealing caps is connected between the ball pin and an integral part of a bearing utilized in the ball joint shaped during the process of injection of the bearing. The integral part of the bearing being formed as an appendix those projects itself towards outside of the ball joint box. A second sealing cap is connected directly between the ball pin and an integral part of the ball joint box being an appendix thereof shaped during the stamping of the ball joint box. The sealing arrangement provides a perfect seal that prevents the entry of any impurity between the movable pieces and those of friction, of the ball joint.
Claims12
A bearing and box arrangement for a ball joint comprising sealing caps made of elastomer having two extremities open, one being of larger diameter to be coupled to an external part of the box and another of smaller diameter to be coupled to a body of a ball pin, wherein a fixing housing is manufactured directly on the bearing and as an integral part thereof, and with the same material, having the shape of extension of the bearing provided in the interior of the box, turned outwards, to receive and fix an opening of larger diameter of one of the sealing caps providing a constant static sealing, in such a manner that said one of the sealing caps directly connects to said bearing element without engaging said box wherein on one of the sides of the ball joint, the housing for the fixing of the sealing cap is constructed as an extension of the bearing and with the same material thereof, during an injection process and, on the other side of the ball joint, the housing for the fixing of the other sealing cap is constructed as an extension of the box and with the same material thereof, during the stamping process in such a manner that said other sealing cap directly connects to said box without engaging said bearing element.
A ball joint assembly comprising:
- a ball pin extending between first and second ends, said ball pin having a spherical section intermediate said first and second ends;
- a ball joint box disposed about said spherical section of said ball pin:
- and
- a bearing element disposed between said ball joint box and said ball pin forming a connection between said ball joint box and said ball pin and facilitating a rotating and angular movement between said ball pin and said ball joint box;
- and
- a first sealing cap connecting one of said first and second ends of said ball pin and said ball joint box and being directly connected to said ball joint box;
- and
- a second sealing cap connecting another of said first and second ends of said ball pin and said bearing element and being directly connected to said bearing element without engaging the ball joint box.
A ball joint assembly comprising:
- a ball pin extending between first and second ends, said ball pin having a spherical section intermediate said first and second ends;
- a ball joint box disposed about said spherical section of said ball pin:
- and
- a bearing element disposed between said ball joint box and said ball pin forming a connection between said ball joint box and said ball pin and facilitating a rotating and angular movement between said ball pin and said ball joint box;
- and
- a first sealing cap connecting one of said first and second ends of said ball pin and said ball joint box and being directly connected to said ball joint box without engaging said bearing element;
- and
- a second sealing cap connecting another of said first and second ends of said ball pin and said bearing element and being directly connected to said bearing element.
Dependencies are inferred from the claim text.