| 摘要 |
An aircraft seat cubicle (1) has a seat (2) convertible to a bed, a foot rest or ottoman (3), a table (4) and a light (6), each movable lengthways L of the cubicle. The table has a leg (41), with a wheel (42) for support of one side of the table off the floor (7) of the cubicle. On the other side, the cubicle has a shelf (9) with a track (43) for support of this side of the table set inside a side panel (10) at a slot (11). The track has a rail (44) mounted on a support angle (45). The table has a tongue (46), which extends into the slot to the track, with a bearing extrusion (47) of low friction material engaged on the rail. It has a drive connection flange (48) fixed on its side away the slot. The flange has a depending lug (49). At the end of the support angle remote from the seat, a free running pulley (50) is provided with its top in line with the lug. At the opposite end of the support angle, a further pulley (51) is provided with a reduction drive motor (52). The motor is connected to a controller and is operated by a user via a control panel (11). A drive cable (53) passes around the two pulleys and is attached to the lug (49). The table can be driven towards or away from the seat. When the motor is stopped, the reduction gearing associated with the motor keeps the table in position. However, a tension spring (54) is connected in line with the cable at the lug (49), between the lug and the motor pulley (51). This arrangement is such that pushing of the table away from the seat stretches the spring, with concomitant relaxing of the tension in the run of the cable to the other pulley (50) and back to the return side of the pulley (51). This relaxation releases the capstan effect on the cable, with the result that the cable can slip on the pulley. Thus the table can be pushed away from the seat. |
