Damper
The shock absorber enhances damping force at low piston speeds through a novel design with multiple passages and variable flow rate mechanisms, improving performance in shock absorbers.
JP2025180713APending Publication Date: 2025-12-11ASTEMO LTD
Patent Information
- Application Number
- JP2024088240
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-12-11
Smart Images
Figure 2025180713000001_ABST
Abstract
To provide a damper which can improve an insufficient attenuation force at a minor piston speed.SOLUTION: A damper includes: a first attenuation force generation mechanism 91 for generating an attenuation force provided at a first passage 95; a second attenuation force generation mechanism 321 which is provided at the second passage 322 and opens a valve in a state where the first attenuation force generation mechanism 91 is closed in a low piston speed region and opens the valve along with the first attenuation force generation mechanism 91 in a region with a speed larger than the low piston speed; a first orifice 223 provided on an upstream side or a downstream side of the second attenuation force generation mechanism 321; a variable flow rate mechanism 62 provided on a third passage 325; and a second orifice 421 provided on an upstream side or a downstream side of the variable flow rate 62. The first orifice 223 has a larger flow path cross sectional area than that of the second orifice 421.SELECTED DRAWING: Figure 2
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Citation Information
Patent Citations
Shock absorber
JP2013130298A
Shock absorber
JP2018076920A
Shock absorber
JP2023004730A