| 摘要 |
<p>PURPOSE:To eliminate restraint hampering the freedom of a laying article in movement, and thereby improve durability by arranging stoppers and shock absorbing bodies for a stationary section and plural through hole sections provided for a spacer, and thereby engaging the laying article in continuous length freely in a relative movement. CONSTITUTION:A spacer 31 is provided with one stationary section 32 and plural through hole sections 33, a laying article 21 in continuous length at the center is fixed onto the stationary section 32, and the other laying article 21 is engaged with the through hole section 33 freely in a relative movement in the axial direction. Stoppers 41 are relatively fitted onto each laying article 21 which is free in a relative movement, and shock absorbing bodies 51 are arranged between the both ends of the through hole section 33 and each stopper 41 so as to be fitted onto either of the through hole section 33 and the stopper 41. By this constitution, the laying article 21 is moved to the axial direction within a range allowed by the stopper 41, in whose range the shock absorbing bodies 51 can absorb shock, even if a floating body to which the laying article 21 at the center is fixedly attached, is in a pitching motion, the influence from which situation is absorbed so as to be damped, the intervals between the respective laying articles 21 are thereby maintained.</p> |
