Low load seal
AssigneesMitsubishi Cable Industries, Ltd., SMC Corporation
InventorsTsuneo Ishigaki, Mamoru Fukuda, Yasuyuki Nishimura, Kazumasa Nishida
Life of this patent
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Abstract
A ring-shaped low load seal attached into a ring-shaped dovetail groove having an opening portion, a first side wall face, a second side wall face, and a bottom wall face. This seal has a trileaf cross-sectional configuration composed of a first arc portion, a second arc portion, a protruding portion, and a concave portion disposed between the first arc portion and the second arc portion.
Claims6
A low-load circular seal with a tri-leaf cross-sectional configuration being attached to an attachment member that has a ring-like dovetail groove with a trapezoidal cross-sectional configuration, said dovetail groove comprising an opening portion, a first side-wall face, a second side-wall face, and a bottom-wall face, said seal comprising;
- a first arc portion extruding toward the first side-wall face and touching the bottom-wall face;
- a second arc portion extruding toward the second side-wall face and touching the bottom-wall face;
- a concave portion corresponding to the bottom-wall face being formed between the first arc portion and the second arc portion;
- and
- a protruding portion with no more than one tip arc portion, formed on an opposite side to the concave portion between the first arc portion and the second arc portion, protruding beyond the opening portion.
Dependencies are inferred from the claim text.