Seat with Movable Privacy Screen for Occupancy Indication
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Solution Overview
Problem
Existing privacy screening furniture in open-plan offices does not provide a clear indication of occupancy, leading to potential interruptions as users cannot determine if a space is available without disturbing the occupant.
Innovation Solution
A seat design featuring a movable screen that rises when the seat is occupied, providing privacy and visual indication of occupancy, with a counterweight and displacement multiplier system to facilitate easy operation and accommodate larger screens for enhanced privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a privacy screen is provided in the raised position, then privacy and isolation are improved, but visual clutter and space occupation increase
Solution Approach 1:
The screen is made movable between raised and lowered positions through a mechanical linkage connected to the seat squab. When the seat is occupied, the screen automatically rises to provide privacy; when unoccupied, it lowers to minimize visual profile. This dynamic configuration allows the same structure to serve dual purposes: privacy provision and space minimization.
2Object-affected harmful factors
If a heavy screen is provided for enhanced privacy, then privacy effectiveness is improved, but the force required to move the screen increases
Solution Approach 1:
A counterweight mechanism is implemented where a counterweight member is connected to the screen through a pulley system. The counterweight offsets the weight of the screen, reducing the net force required to move it. This allows a heavy, effective privacy screen to be operated easily by the relatively small force generated by a person sitting on the seat squab.
Solution Approach 2:
A pulley system acts as an intermediary mechanical advantage device between the seat squab and the screen. The pulley redirects and multiplies the force applied by the seat mechanism, making it easier to lift the heavy screen. This intermediary mechanism bridges the gap between the limited force available from seat occupation and the force needed to move a heavy screen.
3Object-affected harmful factors
If fixed privacy screening furniture is provided, then privacy is improved, but occupancy indication capability deteriorates
Solution Approach 1:
The movable screen serves dual functions: it provides privacy when raised and simultaneously acts as an occupancy indicator. When the screen is in the raised position, it indicates the seat is occupied; when lowered, it indicates the seat is available. This eliminates the need for separate indication mechanisms and integrates the signaling function into the privacy-providing structure itself.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The seat design offers enhanced privacy and reduced visual clutter while clearly indicating occupancy, allowing users to determine if a space is available without disturbance, and supports users with compromised strength or balance through a supportive squab motion.
Implementation Method 1
A counterweight may be provided for partially balancing the weight of the screen. The counterweight applies a force to the screen in substantially the opposite direction to the weight of the screen.
Implementation Method 2
At least one damper piston may be arranged to resist movement of the seat squab. This smooths the motion and prevents sudden movement of the screen.
Data Source
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AI summary
A seat (10) comprises a frame (12), a backrest (14) fixed relative to the frame (12), a movable seat squab (16) and a movable screen (18), the screen (18) being movable between a lowered position and a raised position for providing privacy to a person sitting on the seat (10), in which downward motion of the movable seat squab (16) causes upward motion of the movable screen (18) from the lowered position to the raised position.