Damper

A damper configured to be interposed between a first member and a second member, configured to be fixed to one of the first member and the second member, and configured to suppress vibration of the second member with respect to the first member, the damper comprising:

• a piston configured to advance and retreat by receiving a force from another of the first member and the second member;
• a sliding member configured to slide on the piston as the piston advances and retreats;
• and
• a support member having a tubular portion and an insertion hole formed inside the tubular portion;
• and
• a spring configured to bias the piston,
• wherein the piston is inserted through the insertion hole,
• wherein the sliding member includes
• a protruding portion protruding inward in a radial direction inside the tubular portion and configured to come into contact with an outer peripheral surface of the piston,
• an outer tubular portion disposed outside the tubular portion, and
• an extending portion extending inward in the radial direction from one end of the outer tubular portion and indirectly or directly coupling the protruding portion and the outer tubular portion,
• wherein, in the radial direction, an inner peripheral surface of the outer tubular portion faces an outer peripheral surface of the tubular portion, and is disposed outside the outer peripheral surface of the tubular portion,
• wherein the sliding member includes a bulging portion formed to bulge outward in the radial direction from an outer surface of the outer tubular portion,
• wherein a gap is formed inside the bulging portion in the radial direction, and
• wherein the spring is disposed outside the bulging portion in the radial direction.