Hinge assembly with lubrication means

A hinge assembly for joining a cover to a main body of a foldable electronic device, comprising:

• a shaft comprising a securing portion formed at a first end thereof, and a latching portion formed at an opposite second end thereof;
• a follower connecting with the shaft;
• a cam essentially in the shape of a cylinder, comprising a cam surface and defining a cam hole extending therethrough, the cam hole receiving the shaft therethrough;
• a washer defining a hole and being located around the shaft;
• a lubrication mass forming means disposed between the washer and the latching portion of the shaft;
• and
• an urging means, a first end of the urging means abutting the washer, an opposite second end of the urging means biasing the cam, the follower being rotatably and movably engaged with the cam surface of the cam under force of the urging means.

An electronic device comprising:

• a main body of said electronic device;
• a cover of said electronic device capable of abutting against a side of said main body to cover said side and movable relative to said main body away from said side to expose said side;
• and
• a hinge assembly disposed between said main body and said cover to controllably conduct movement of said cover relative to said main body, said hinge assembly comprising at least two relatively movable components movably interengagable with each other so as to conduct said movement of said cover, and an urging means capable of abutting against at least one of said at least two movable components in order for contributing to movement-conducting of said at least two movable components, a lubrication means located between said urging means and said at least one of said at least two movable components, and capable of providing lubrication effect between said urging means and said at least one of said at least two movable components due to relative movement of said at least two movable components.