Electromagnetic shock absorber
US7357229B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 28, 2003 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Feb 19, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2232/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic shock absorber according to the present invention has a shock absorber body 1 which makes telescopic motion in response to an input from outside. The shock absorber body 1 comprises a ball screw mechanism 15, which converts the telescopic motion into rotary motion and is composed of a ball nut 16 and a screw shaft 17, and power transmitting sections 13 and 24 having elastic bodies which transmit the rotary motion of the ball screw mechanism 15 to a rotary shaft 11 of a motor 10 while shifting a transmission phase when transmission torque of the rotary motion is changed. The motor 10 generates electromagnetic resistance to oppose against rotations which input into the rotary shaft 11. Thus, vibration or the like which inputs into the shock absorber body 1 from outside is damped by the electromagnetic resistance of the motor 10. Due to the power transmitting sections 13 and 24 which delay a rotary phase, moment of inertia of a rotor of the motor 10 is eased when a shocking load inputs into the shock absorber body 1. Therefore, it is possible to make a vehicle more comfortable to drive when the electromagnetic shock absorber is applied as a shock absorber of the veh…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.