Impact absorber device
OwnerDai-heng Chen, Hiroyuki Tanaka +2inventors
InventorsDai-heng Chen, Hiroyuki Tanaka, Shigeyuki Haruyama, Hironobu Nisitani
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Abstract
An impact absorber device includes at least one first portion having a short tubular shape, and at least one second portion having a short tubular shape concentrically disposed in a stacked relationship with the first portion. The first portion and the second portion engage with each other at an engagement portion which is inclined with respect to a concentric axis of the first portion and the second portion. With this arrangement, impact energy is absorbed in the case of collision accidents of vehicles such as an automobile and trains, and the dropping accidents of lifts such as elevators.
Claims9
An impact absorber device, comprising at least one first portion having a short tubular shape, and at least one second portion having a short tubular shape concentrically disposed in a stacked relationship with said first portion, wherein said first portion and said second portion engage with each other at an engagement portion which is inclined with respect to a concentric axis of said first portion and said second portion,
- wherein the first portion has a small diameter and has a full peripheral sliding contact face at a top portion thereof, the second portion has a large diameter and has a full peripheral sliding contact face at a bottom portion thereof, the engagement portion is a truncated cone connecting the first portion and the second portion so that the full peripheral sliding contact faces are directed in opposite directions,
- the first portion, the second portion and the connection portion constitute one unit,
- the impact absorber device further comprises support elements for supporting one or a plurality of the unit(s) from both sides, and
- the support element has a sliding contact surface on a side facing the unit.
Dependencies are inferred from the claim text.