ADJUSTMENT STRUCTURE FOR A CUSHION UNIT

摘要

In an adjustment structure for a cushion unit (44), wherein at least in one end side (44a) of said cushion unit, an axis member (55) for supporting an end part of said cushion unit is movably mounted relative to a pair of mount brackets (45) by a bolt axis (58) supporting said axis member (55) and adjustment guide apertures (60) formed in each mount bracket for penetrating said bolt axis so that a position of said cushion unit is adjustable, it is characterized that a treatment (60a) is given in a contact surface between said adjustment guide apertures (60) and bolt axis (58) to which compression reaction force of the cushion unit is applied so as to prevent the skidding of said bolt axis relative to said apertures.