Patent ID: 7527849
Filing Date: 2009-05-05
Classification: F16F,Y10T

Abstract:
1. A shock absorbing unit, comprising: a honeycomb core made by thermal compression bonding a plurality of sheets of plastic material together to form a laminated block wherein the bonds between adjacent sheets are disposed along regularly spaced parallel rows with the bond rows between alternating sheets being laterally offset relative to the bond rows between the other sheets; a core strip cut from the block by severing the block along a plane intersecting the block normal to both the length of the bond rows and the surfaces of each sheet, the core strip being expanded to form a honeycomb shaped core having cells of a particular configuration, the cells forming openings extending from a first core face on a first side of the core to a second core face on a second side of the core; a facing sheet of resilient material thermal compression bonded to at least one of the core faces by simultaneously applying heat and pressure to the junction of the facing sheet and a corresponding core face to form a honeycomb panel having opposing panel faces; a portion of said honeycomb panel being folded along a fold line extending across one of said panel faces such that a first portion of said one panel face on one side of said fold line contacts a second portion of said one panel face on the opposite side of said fold line; and a seam joining said first and second portions of said one panel face together, said seam extending along a line generally parallel to said fold line, the portion of said panel outside the seam being severed from the remainder of said panel to form an elongated, generally cylindrical shaped shock absorbing unit.