Patent ID: 11964631
Assignee: PIOLAX, INC.
Field: Civil engineering (Other fields)
Classification: CPC B  E  F | IPC B  E  F

Claim 6:
7. A damper device configured to apply a damping force when a pair of members move relative to each other, the damper device comprising an annular elastic member made of an elastic resin material,
wherein one member of the pair of members is provided with a support section for supporting the annular elastic member,
wherein an other member of the pair of members is provided with a pair of facing walls between which the support section is to be inserted when the pair of members move relative to each other,
wherein the annular elastic member is mounted on an outer periphery of the support section, and in a mounted state, portions of an inner periphery of the annular elastic member, the portions facing each other in a movement direction of the one member or the other member, form contact portions that are in contact with the outer periphery of the support section, and portions of the inner periphery of the annular elastic member, the portions facing each other in a direction perpendicular to the movement direction, are provided with separated portions that are separated from the outer periphery of the support section,
wherein in a state where the annular elastic member is mounted on the outer periphery of the support section, a maximum distance A of the separated portions facing each other is greater than an opening width B between tip ends of the pair of facing walls on a side on which the support section enters, and
wherein the annular elastic member has a circular shape in a state before being mounted on the support section.