Variable damper seat post

A variable damper seat post comprising:

• a post;
• a seat connecting body coupled to a seat on which buttocks of a cyclist are placed, the seat connecting body being disposed above the post;
• a fixing unit configured to fix the seat connecting body to the post;
• and
• a damper interposed between the post and the seat connecting body to cause a position of the seat to be varied in response to movement of the buttocks in a state in which the buttocks are placed on the seat,
• wherein the post comprises a damper base forming an upper end thereof, the seat connecting body is disposed above the damper base, and the damper is interposed between the damper base and the seat connecting body so that the seat connecting body and the damper are fixed to the damper base by the fixing unit
• wherein the fixing unit comprises:
• a front nut mounted in a front nut groove formed in the damper base;
• a front bolt penetrating the seat connecting body and the damper and fastened to the nut;
• a rear bolt coupled to a rear bolt hole in the damper base;
• and
• a rear nut fastened to the rear bolt,
• wherein the seat connecting body includes an upper seat connection piece and a lower seat connection piece, and a seat rail provided on a lower surface of the seat is interposed between the upper seat connection piece and the lower seat connection piece, and
• wherein each of the lower seat connection piece and the upper seat connection piece of the seat connecting body is provided in a central portion thereof with a lower hole or an upper hole that extends from an upper surface to a lower surface of the corresponding connection piece, and an intermediate bolt is inserted through the lower hole and the upper hole and an intermediate nut is fastened to the intermediate bolt on a lower surface of the seat connecting body so that the intermediate bolt and the intermediate nut constitute a seat connecting body fixing unit.