Patent ID: 11933355
Assignee: SOMIC MANAGEMENT HOLDINGS INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC F

Claim 0:
1. A ball joint comprising:
a receiving-side member including an inner chamber and an opening part communicating with the inner chamber;
a sheet member housed in the inner chamber of the receiving-side member;
a ball-side member including a ball part rotatably held by the sheet member, and a shaft part projecting from the opening part toward an outer side of the receiving-side member;
a cover member attached to both the receiving-side member and the shaft part of the ball-side member while covering the opening part;
a first lubricant interposed between the ball part of the ball-side member and the sheet member and configured to provide a first friction coefficient between the ball part of the ball-side member and the sheet member; and
a second lubricant enclosed inside the cover member and configured to provide a second friction coefficient between the ball part of the ball-side member and the sheet member when mixed with the first lubricant; and
wherein the second friction coefficient is higher than the first friction coefficient.