| 摘要 |
<p>The device (1) has first portion (5) whose diameter is larger than second portion (13), so that first annular rotating contact surface is formed at a side of first portion facing second and third portions (15). The third portion is deformed elastically from first state to second state by applying force on periphery of third portion perpendicular to longitudinal axis. The diameter of third portion in first state is larger diameter than second portion, so that second annular surface (17) is provided at a side of third portion facing first and second portions. Independent claims are included for the following: (1) the vacuum cleaner bag; and (2) a method for connecting the adapter device with retaining plate.</p> |
