Resources Contact Us Home
Crash energy absorption member

Image Number 4 for United States Patent #7445097.

A crash energy absorption member capable of reducing the initial load without provision of a crushing bead and capable of achieving a sufficient amount of shock absorption with stable buckling behavior. The crash energy absorption member is formed from a tubular body which has a length L and a polygonal transverse cross-sectional shape with 2n corners due to having 2n ridge lines (wherein n is a natural number greater than or equal to 3) and 2n surfaces partitioned by these 2n ridge lines, and which absorbs impact energy by buckling when an impact load is applied to one end in the axial direction towards the other end, characterized in that some of the 2n ridge lines only exist in a region which extends from a position spaced by a distance h in the axial direction from the one end to the other end, and if the number of the remaining ridge lines which have a length L is m, the following equations are satisfied: h.ltoreq.L.times.0.30 (1) 4.ltoreq.m.ltoreq.2.times.(n-1). (2)

  Recently Added Patents
Heat transfer label for decorating a metal container
Radiation detector array
Process cartridge and electrophotographic image forming apparatus
DNA promoters and anthrax vaccines
Solar energy converter with improved photovoltaic efficiency, frequency conversion and thermal management permitting super highly concentrated collection
Encoding method and encoding device, decoding method and decoding device and transcoding method and transcoder for multi-object audio signals
Engineered enzymes with methionine-gamma-lyase enzymes and pharmacological preparations thereof
  Randomly Featured Patents
Methods for making polyurea polymer and products prepared therefrom
Simplifying the layout of printed circuit boards
Display power management of a portable communication device that detects a continuous talk condition based on a push-to-talk button being activated a predetermined number of times
Enzymatic detection device for detecting a gaseous or aerosol substance
Work table for a knitting machine or the like
System for imaging an ocular fundus semi-automatically at high resolution and wide field
Process for fabricating a stacked capacitor
Use of prothymosin in the diagnosis and treatment of endometriosis
Operator-side system and mode file identifying method
Image-receiving sheet for electrophotography