Patent ID: 8875352
Filing Date: 2014-11-04
Classification: B60N,F16F,Y10T

Abstract:
1. A braking structure for a turning body turnably combined relative to a base, comprising: a rotation damper including a stationary-side portion and a movable-side portion, and structured to act a braking force on a rotation of the movable-side portion; an engagement device arranged at one end portion of the movable-side portion and adapted to be rotatable with the base at a rotation center thereof; a first fixing device adapted to fix the movable-side portion relative to the turning body; and a second fixing device adapted to fix the stationary-side portion of the rotation damper relative to the base, wherein the engagement device includes an axis protrusion adapted to be provided on the base, a receiving portion provided on the rotation center of the movable-side portion and including a hole portion having an inner diameter substantially equal to an external diameter of the axis protrusion, the receiving portion receiving the axis protrusion from a direction perpendicular to a rotation axis of the rotation, a pair of elastic engaging pieces surrounding the receiving portion, and an inserting path formed between the pair of elastic engaging pieces, and the inserting path guides the axis protrusion to the receiving portion and is expandable in the direction perpendicular to the rotation axis by an elastic deformation of the pair of elastic engaging pieces when the receiving portion receives the axis protrusion.