Security revolving door assembly
First Claim
1. A security revolving door assembly comprising:
- a revolving door having a rotary vertical shaft, a vertical lateral wall with an arc-shaped cross-section and extending circumferentially relative to said vertical shaft, and a plurality of door wings mounted on and extending radially from said shaft toward said lateral wall, said door wings having distal ends disposed away from said shaft and including a first door wing and a second door wing following said first door wing, said door wings being rotatable along with said shaft and defining with said lateral wall a trap space when said first and second door wings reach respectively first and second positions which are spaced apart angularly, said second position lagging said first position, said distal ends of said first and second door wings confronting said lateral wall when said first and second door wings reach respectively said first and second positions; and
a controlling unit coupled to said revolving door and operable so as to stop rotation of said door wings as soon as said door wings define said trap space.
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Accused Products
Abstract
A security revolving door assembly includes a revolving door and a controlling unit. The revolving door has a rotary vertical shaft, a vertical lateral wall extending circumferentially relative to the shaft, and a plurality of door wings extending radially from the shaft. The door wings have distal ends, include first and second door wings, are rotatable along with the shaft, and define with the lateral wall a trap space when the first and second door wings reach respectively first and second positions. The distal ends of the first and second door wings confront the lateral wall when the first and second door wings reach respectively the first and second positions. The controlling unit is operable so as to stop rotation of the door wings as soon as the door wings define the trap space.
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Citations
13 Claims
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1. A security revolving door assembly comprising:
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a revolving door having a rotary vertical shaft, a vertical lateral wall with an arc-shaped cross-section and extending circumferentially relative to said vertical shaft, and a plurality of door wings mounted on and extending radially from said shaft toward said lateral wall, said door wings having distal ends disposed away from said shaft and including a first door wing and a second door wing following said first door wing, said door wings being rotatable along with said shaft and defining with said lateral wall a trap space when said first and second door wings reach respectively first and second positions which are spaced apart angularly, said second position lagging said first position, said distal ends of said first and second door wings confronting said lateral wall when said first and second door wings reach respectively said first and second positions; and
a controlling unit coupled to said revolving door and operable so as to stop rotation of said door wings as soon as said door wings define said trap space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification