| 摘要 |
According to the invention, a liner is provided for use with a substantially undeformable teatcup shell (40), for forming a two-chambered teatcup, by means of which milk is extracted from a teat (Z) in a suction milking process through a milking vacuum provided during a milking phase, and the teat is massaged during a rest phase, wherein the liner comprises a head part (12) that is substantially rotationally symmetrical relative to its longitudinal axis and a barrel part (14) that is connected to the head part (12) by means of a transitional part (22), the barrel part (14) is flexible, surrounds the teat and reacts to alternating changes in pressure during the milking and rest phases by changing its form, the head part (12) is formed as an annular tube (16), which forms an insertion opening (18) for the teat (Z), and which ensures sealing relative to the milking vacuum and the best possible grip of the liner to the teat without excessively constricting the teat during both the milking and the rest phases, the annular tube (16) is configured in such a way that an annular hollow space (30) is defined by the teat, the transitional part (22) and the annular tube (16) once the teat is introduced into the barrel part (14), the inner width of the annular tube (16) is smaller during the milking phase than the inner width of the area of the barrel part (14) provided for the teat (Z), and the annular tube (16) is sufficiently flexible that its inner width is enlargeable radially outward and its axial length is changeable during introduction of the teat. |
