| 摘要 |
<p>A door check mechanism for regulating pivotal movement of a vehicle door (37) between a closed position and one or more open positions, which mechanism is sometimes incorporated in a hinge, includes an elongated track member (36) having a track surface (46) with at least one detent receptacle (48, 49) in that track surface (46); a detent roller (56) engages the track surface (46) in rolling pressure contact at least part of the time whenever the door (37) moves between its open and closed positions. A second detent member (57) may engage a second track surface (47) on the track member (36); the second detent member (57) may also be a roller. Either the detent roller (56, 57) or the track has a resilient elastomer core (64), preferably an elastomer material (e.g., a silicone polymer) that retains its elastic properties over a temperature range that extends much higher than any temperature usually endurable by humans; the core (64) is usually covered by a hard, relatively non-elastic but flexible sheath (66). The engaging portions of the roller and track surfaces are preferably dissimilar materials, usually a metal and a resin.</p> |
