Deflector sheave
Korean 디플렉터 시브, 세컨 시브, 편향 도르래, 편향 풀리, 디플렉터, 디플렉터쉬브, 디플렉터시브
A deflector sheave is the pulley that the standard calls a deflection pulley.Korean Elevator Safety Standard, Annex 22 9.8 가) A deflection pulley in the hoistway must have a retaining device that stops it falling if it fails.Korean Elevator Safety Standard, Annex 22 9.8 가)
D&D user manuals call the deflector sheave 세컨 시브 (second sheave).D&D user manual MGD100C 2.7
Where the standard mentions it
- CalculationsThe calculation formulas in the annexes count the car side and counterweight side deflection pulleys separately.Korean Elevator Safety Standard, Annex 22 부속서 계산식 기호
- Not the sameThe deflector in clause 6.5.2.2.2 is a sloped plate that stops people standing on a ledge in the hoistway wall. It is a different item from a deflector sheave.Korean Elevator Safety Standard, Annex 22 6.5.2.2.2 나)
Related terms
Related articles
D&D technical articles that discuss Deflector sheave. Articles are not used as sources for the definition.
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Sources
- Annex 22: MOIS Notice 2022-18, Elevator Safety Standard, Annex 22 (KC 2050-51:2022). English terms are the ones printed in brackets in Annex 22.
- D&D traction machine user manuals (MCK, MONA and MGD100C series, support document library).
