Sealing device
AssigneeUchiyama Manufacturing Corp.
InventorsWakana Fujita, Keita Ohmori
Life of this patent
Estimating the term…
Abstract
A sealing device to seal an annular space formed by a fixed side member and a rotation side member, including a first seal member and a second seal member, and being provided between the two members in a state in which the first and the second seal members are combined. The sealing device includes a coating layer having an easily scraped property and being provided at least at one place in a gap between facing regions in which the first and the second seal members are provided so as to face each other in an initial state in which the first and the second seal members are combined. The coating layer slidably contacts a region to which the coating layer faces in a state in which the first and the second seal members rotate relative to each other from the initial state.
Claims11
A sealing device to seal an annular space formed by two members, a fixed side member and a rotation side member which rotates coaxially relative to the fixed side member, the sealing device comprising:
- a first seal member to be fitted to the rotation side member and a second seal member to be fitted to the fixed side member, the sealing device capable of being provided between the two members in a state in which the first seal member and the second seal member are combined;
- and
- a coating layer having an easily scraped property, having shape retention when scraped, and being provided without any gaps at least at one place between facing regions in which the first seal member and the second seal member are provided so as to face each other in an initial state in which the first seal member and the second seal member are combined,
- wherein a gap is formed when the coating layer is scraped by slidably contacting a region of the first seal member or the second seal member to which the coating layer faces in a state in which the first seal member and the second seal member rotate relative to each other from the initial state, and the gap has a sealing function.
Dependencies are inferred from the claim text.