Zero-stiffness impact isolation device
US11815155B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 5, 2020 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Dec 15, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2232/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A zero-stiffness impact isolation device includes a shell, a half-hourglass-shaped boss, a sliding block, a spring, a motion guide assembly, and an inner core. Where the motion guide assembly includes a linear bearing fixed to the shell and the inner core and a corresponding sliding rod, and is divided into a transverse guide assembly and a longitudinal guide assembly. The spring is sleeved outside the sliding rod of the transverse motion guide assembly, and two ends of the spring are in contact with the sliding block and the inner core, respectively. When the device suffers from external impact load, the inner core and the separated object carry out a reciprocating motion, the sliding block is extruded by the half-hourglass-shaped boss to move side to side with respect to the inner core, and the spring provides elastic force to the sliding block in the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.