Patent ID: 8689955

Claim:
A shock absorbing structure comprising: a shock absorbing member that extends from one end side toward an other end side; a plurality of first deformation controlling portions that are formed at the shock absorbing member and controls the deformation of the shock absorbing member by adjusting strength; and a plurality of second deformation controlling portions that are formed at the shock absorbing member and controls the deformation of the shock absorbing member by adjusting strength, wherein the plurality of first deformation controlling portions are disposed at a predetermined interval in a longitudinal direction of the shock absorbing member, the plurality of second deformation controlling portions are disposed at a predetermined interval in the longitudinal direction, at least one of the plurality of first deformation controlling portions is disposed between a pair of the second deformation controlling portions, and the plurality of first deformation controlling portions include a set of first deformation controlling portions formed so that a first deformation controlling portion of the set disposed closer to the other end side, in the longitudinal direction, has higher strength than a first deformation controlling portion of the set disposed closer to the one end side, wherein first strength adjusting portions, which adjust strength, are formed at the first deformation controlling portions, wherein second strength adjusting portions, which adjust strength, are formed at the second deformation controlling portions, wherein a first effective cross-sectional length is determined by a length of portions of a plurality of sides of a cross-sectional shape of the first deformation controlling portions except for the first strength adjusting portions, wherein a second effective cross-sectional length is determined by a length of portions of a plurality of sides of a cross-sectional shape of the second deformation controlling portions except for the second strength adjusting portions, wherein the first effective cross-sectional length and the second effective cross-sectional length are set so as to be different from each other, and wherein the plurality of the first deformation controlling portions including the set of first deformation controlling portions is formed so that the first deformation controlling portion of the set disposed closer to the other end side, in the longitudinal direction, has a larger first effective cross-sectional length than the first deformation portion of the set disposed closer to the one end side.