| 摘要 |
<p>PURPOSE:To improve the water-proof performance thus to prevent the corrosion of the guide pin, by forming the continuously extending projection on the end face at the torque member side of a pin boots. CONSTITUTION:The bolts 14, 15 are screwed on both sides of a torque member 10 as the guide pin. A pin boot 16 is placed between the bolt 14 and the sliding hole 17 formed in the calliper body 11 while surrounding the bolt 14. Said pin boot 16 has a bellows 18 for facilitating the resilient deformation in the longitudinal direction while the open end at the torque member 10 side will contact resiliently and tightly on the outer-circumference of the bolt 14 while a projection 19 extending coaxially and continuously with the bolt 14 is formed on the end face of the torque member 10 and deformes resiliently due to the resiliency of the torque member 10 to pressure contact with it thus to block the bolt 14 from the out air.</p> |
