showstack / glossary / winch
Winch 捲揚機
A powered drum that spools wire rope to pull a load, mounted so the rope can run over sheaves at an angle rather than straight down — which is why winches, not chain hoists, run stage-wagon tracks, turntables and diagonal flying effects. Under the entertainment powered-hoist standard a winch is a different machine from a hoist: it pulls rather than holds a suspended load on a locking brake, and a capstan winch is explicitly excluded from that standard's scope.
中文
以捲筒收放鋼索拉動負載的動力設備。與電動葫蘆不同，捲揚機的鋼索纏在捲筒上，可做水平或斜向牽引。
Easy to get wrong
Do not assume a "winch" on a rig plot is rated like a point hoist. ANSI E1.6 covers powered hoists and explicitly excludes capstan winches — the safety case for a winch comes from elsewhere.
Hoists hold a suspended load on a mechanical locking brake; winches typically use dynamic braking, fine on an incline but not for holding a load static overhead.
Next to this
Chain hoist / chain motor電動葫蘆A powered or hand-chain hoist built to raise and lower a suspended load, used in entertainment rigging as poi…Fly吊桿／拉 flyTo move scenery, lighting bars or people vertically on a suspension system, and by extension the bar itself. …Safe working load (SWL) / working load limit (WLL)安全操作負荷The maximum load a piece of rigging hardware is rated to carry in normal service — not its breaking strength,…
Sources
- ANSI E1.6-1 – 2019: Entertainment Technology – Powered Hoist Systems — ESTA Technical Standards Program primary
- Winch vs Hoist - Overview and Comparison — Southeast Rigging
Understand the mechanism
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