| 摘要 |
In the furniture stuffing (2), channels (4) are formed, the one open end (5) of which is at the front or top side of the stuffing adjacent to the upholstery (3), whilst its other mouth (6) is at the opposite end and provided with a check valve (7). - When the stuffing is pressed together or expanded, air is pumped through the channel forward to the upholstery. The check valve serves to direct the air flow in the required direction. |
