| 摘要 |
<p>PURPOSE:To provide a hose which easily inserts an inner hose part into an outer hose part and in which the elongation length of the second bellows cylinder part of the inner hose part can be secured large. CONSTITUTION:A hose is constituted by inserting an inner hose part 2 into an outer hose part 1 through the insertion from one edge 2h. The outside diameter D3 of the top part 20a of the bellows cylinder part 20 of the inner hose part 2 is set larger than each inside diameter D1, D4 of the outer hose part 1. Among the waves of the bellows cylinder part 20 of the inner hose part 2, the tilt angle of an ascent part 20s for the axis core of the inner hose part 2 is set to theta1, and the tilt angle of a descent part 20t for the axis core is set to theta2, theta1 is set smaller than theta2 (theta1<theta2). Accordingly, in the insertion, the wave of the bellows cylinder part 20 is easily fallen down.</p> |
