To provide a shock absorbing mechanism or the like that can suitably absorb shock.SOLUTION: A shock absorbing mechanism 2 is obtained by arranging a plurality of shock absorbing portions 5, each of which includes columnar wood and has a fixed width, at equal intervals in a direction orthogonal to an axial direction thereof. In the shock absorbing mechanism 2, in a case where a pole 6 with a diameter 254 (mm) collides in an axial direction of each shock absorbing portion 5 at a position of hitting a center axis of each shock absorbing portion 5 or a center of a gap 7 between the shock absorbing portions 5 in a width direction thereof and if a contact angle between the shock absorbing portion 5 whose center axis is located at the outermost position in the plurality of shock absorbing portions 5 intersecting a surface of the pole 6 and the pole 6 is θmax (deg) and the number of shock absorbing portions 5, where a contact angle θ (deg) with the pole 6 is equal to or smaller than θmax, is n, an axial length L (mm) of each absorbing portion 5 and a value of a width d (mm) of the gap 7 between the shock absorbing portions 5 are defined so as to satisfy d≤4.43θmax/(n-1)-(0.00515θmax+0.408)L.SELECTED DRAWING: Figure 3
【課題】好適に衝撃吸収を行うことのできる衝撃吸収機構等を提供する。【解決手段】衝撃吸収機構2は、柱状の木材を含み、一定の幅を有する複数の衝撃吸収部5を、その軸方向と直交する方向に等間隔で配列したものである。衝撃吸収機構2では、直径254(mm)のポール6が、衝撃吸収部5の中心軸または衝撃吸収部5の間の隙間7の幅方向の中心に当たる位置で、衝撃吸収部5の軸方向に衝突するとした場合に、中心軸がポール6の表面と交差する複数の衝撃吸収部5のうち最も外側に位置する衝撃吸収部5とポール6との接触角をθmax(deg)、ポール6との接触角θ(deg)がθmax以下となる衝撃吸収部5の本数をnとして、衝撃吸収部5の軸方向の長さL(mm)と、衝撃吸収部5の間の隙間7の幅d(mm)の値が、d≦4.43θmax/(n-1)-(0.00515θmax+0.408)Lを満たすように定められる。【選択図】図3
SHOCK ABSORBING MECHANISM AND MANUFACTURING METHOD FOR SHOCK ABSORBING MECHANISM
衝撃吸収機構、衝撃吸収機構の製作方法
2022-11-09
Patent
Electronic Resource
Japanese