Lowerable baggage compartment for a passenger cabin

A baggage storage system comprising:

• a baggage compartment that is raisable and lowerable between an upper closed position and a lower open position;
• a guide arrangement to which said baggage compartment is slidingly connected to allow said baggage compartment to slide guidedly along said guide arrangement between said upper closed position and said lower open position;
• a drive arrangement that includes a power unit and a drive transmission arrangement;
• and
• a coupling arrangement that is connected to said drive arrangement and that is adapted to be selectively switched to a coupled state to establish a power-transmitting connection from said power unit through said drive transmission arrangement to said baggage compartment so that said drive arrangement can selectively move said baggage compartment between said upper closed position and said lower open position, and to be selectively switched to a decoupled state to interrupt said power-transmitting connection to allow said baggage compartment to be selectively moved manually between said upper closed position and said lower open position without being coupled with said power unit.

A baggage storage system comprising:

• a baggage compartment that is raisable and lowerable between an upper closed position and a lower open position;
• a guide arrangement to which said baggage compartment is slidingly connected to allow said baggage compartment to slide guidedly along said guide arrangement between said upper closed position and said lower open position;
• a drive arrangement that includes a power unit and a drive transmission arrangement, and that is connected to said baggage compartment and adapted to move said baggage compartment between said upper closed position and said lower open position;
• and
• a coupling arrangement connected to said drive arrangement and adapted to selectively establish and interrupt a power-transmitting connection from said power unit through said drive transmission arrangement to said baggage compartment;
• wherein said power unit comprises a pneumatic or hydraulic fluid driven piston in a working cylinder, with two working chambers formed on opposite sides of said piston in said working cylinder;
• wherein said drive transmission arrangement comprises a piston rod connected to said piston and to said baggage compartment;
• and
• wherein said coupling arrangement comprises a fluid bypass line connected respectively to said two working chambers and a bypass valve interposed in said bypass line, such that opening said valve establishes a fluid bypass through said bypass line between said two working chambers and interrupts said power-transmitting connection.

A baggage storage system comprising:

• a baggage compartment that is raisable and lowerable between an upper closed position and a lower open position;
• a guide arrangement to which said baggage compartment is slidingly connected to allow said baggage compartment to slide guidedly along said guide arrangement between said upper closed position and said lower open position;
• a drive arrangement that includes a power unit and a drive transmission arrangement, and that is connected to said baggage compartment and adapted to move said baggage compartment between said upper closed position and said lower open position;
• and
• a coupling arrangement connected to said drive arrangement and adapted to selectively establish and interrupt a power-transmitting connection from said power unit through said drive transmission arrangement to said baggage compartment;
• wherein said power unit comprises a drive motor;
• wherein said drive transmission arrangement comprises a threaded spindle and a transmission connecting said spindle to said drive motor;
• and
• wherein said coupling arrangement comprises a spindle follower that is connected to said baggage compartment and that is selectively engaged and disengaged with said threaded spindle.