| 摘要 |
<p>An improved liquid transfusing bottle made of flexible material of the type using no air venting needle is disclosed. It includes a barrel portion (2), a shoulder portion (4) and a bottom portion (3) and parting lines (7, 8) extend on both the side faces in the vertical direction. The barrel portion (2) is formed with ribs (11a, 11b, 12a, 12b) for recessed areas of which the contour line is so designed that a distance as measured from the parting line decreases toward the center part of the bottle from the shoulder portion (4) or the bottom portion (3). As the residual volume of liquid in the bottle decreases, the barrel portion (2) is deformed in the flattened configuration along the contour lines of the ribs (11a, 11b. 12a, 12b) or the recessed parts in such a manner that the shorter diameter thereof is reduced. Deformation of the barrel portion (2) is achieved without any occurrence of twisting or breaking of the bottle and liquid in the bottle is smoothly discharged therefrom at a constant speed during the transfusion operation.</p> |
