Lurssen door dampening 3d model
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Lurssen door dampening

Lurssen door dampening

by GrabCAD
Last crawled date: 1 year, 9 months ago
Door Dampening Mechanism
Utilises a centrifugal clutch to retard speed
Clutch has 3 segments each with a separate spring rating to provide progressive braking for increasing speed
Clutch springs to be tuned to provide zero resistance whilst door is opened at normal personnel passage speed
Gearing to increase clutch centrifugal force
Simple construction utilizing commercially available centrifugal clutch - as employed on a chainsaw for example - replace standard springs as necessary
During normal operation the clutch would not engage thus there would be minimal wear on components
Grade 316 Stainless steel construction
Sealed bearings
O Ring seals on shafts To prevent water ingress
Gear drive arm may be mechanically fixed to glass door panel as shown or UV bonded for a minimalistic finish
Flush mounted face plate and panel clamp - polished or brushed for aesthetic appeal
Allows bi-directional passage through the door with the brake operating in both directions.
Mechanism can be retro fitted into ceiling
Easy to remove for maintenance and/or adjustment
Floor plate without clutch provides un-braked hinge pivot
Mounting plate is extended along door line to resist torque of braking effect
TO ADD
1) Electro magnetic selector to de-couple the gear mesh in the event of alarm condition - to permit rapid egress in the event of an emergency - Similar principle to a fire gas shut off valve which is maintained open by a low voltage electro magnet which releases on loss of signal from the FCP
2) Fixings & seals

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