Door cam

The Door cam is the device used on some elevators (possibly not often seen on automatic door elevators) that pushes the interlock roller, causing the interlock to release, and allow the doors to open. The device is mounted to the elevator car. There are 2 types of door cams. Fixed cams are stationary. Retiring cams horizontally move, and retract when the elevator is moving. Fixed cams are likely usually used on elevators serving only a few floors, and retiring cams are likely used on elevators serving more than a few floors.

Gallery

Retiring Cam in Action

Retiring cam on swing door elevator

Elevator

Drive systems: Traction • Winding Drum • Hydraulic Types of elevators: Double Deck • Dumbwaiter • Fireman's • Freight • Incline • Passenger • Residential • Wheelchair lift Concept: Capacity • Destination dispatch • Hall call prediction • Elevator algorithm • Elevator control system • Elevator machine room • Elevator maintenance • Elevator monitoring system • Elevator modernization • ACOP & UCMP • Machine room less elevator • Major alterations • Rated speed Elevator systems, controllers and equipments: Elevator emergency automatic rescue device • Elevator fixtures • Elevator keys • Elevator special modes • Elevator doors • Door cam • Door interlocks (Interlock wiring communication system) • Door restrictor • Elevator Inspection Certificate • Emergency stop button • Floor designators • Gate switch • Old Deadman controls • Overspeed governor • Motor-generator set & Silicon-controlled rectifier (for DC-powered elevators) • Insulated-gate bipolar transistor (for AC-VVVF-powered elevators) • Selector • Tape head • Regenerative converter (for AC-VVVF-powered elevators) See also: List of elevator fixtures guide • List of elevator and escalator companies • Elevator door sill guide (Non-proprietary elevator component door sill guide) • Floor numbering (Unlucky floor numbers) • Elevator incidents and accidents

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