| 摘要 |
A roller mount for seats is used for mounting a seat in a boat. A track is mounted on a base plate in the boat. The Y-shaped track has flanges, a transverse web, and a central pillar. The flanges have slots with detent bores. An inverted U-shaped carriage rides on the track. The carriage has a transverse web and two flanges with detent holes. The carriage has two upper lateral channels facing downward, two lower lateral channels facing upward, and two medial channels facing inward. A plurality of upper transverse rollers is mounted for rotation on axles in the upper lateral channels. Lower transverse rollers are mounted on axles in the lower lateral channels. Vertical rollers are mounted on axles in the medial channels. A top plate is mounted on the carriage to support the seat. A second track, allowing a wider seat, can be mounted on the base plate spaced apart from the first track. A detent locks the seat in the selected position. The detent has conical collars biased by a spring into the track detent bores. The detent collars are mounted on a shaft sliding in shaft supports.
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