METHOD FOR MANUFACTURING IMPACT-ABSORBING MEMBER

• Main Authors: YOKOMIZO HODAKA, OBATA AKIHIKO
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention provides an impact-absorbing member having a hollow-structured impact-absorbing section comprising an outer cylinder section and a hollow section, wherein the outer cylinder section includes a thermoplastic resin and carbon fibers having a weight-average fiber length of 1 mm to 100 mm, and throughout the entire periphery of the outer cylinder part, there is an annular region where the carbon fibers are dispersed in an in-plane direction and there is no bonding portion such as a welded surface; therefore, there is no breaking starting point when impact is borne and the impact absorption ability is stable. 本发明提供一种冲击吸收部件，该冲击吸收部件具有由外筒部和中空部构成的中空结构的冲击吸收部，外筒部含有重均纤维长度1mm以上且100mm以下的碳纤维和热塑性树脂，并且具有在外筒部的整周上碳纤维沿面内方向分散的环带区域，由于不存在熔接面等接合部分，所以不存在受到冲击时的破坏起点，冲击吸收能力稳定。