A resilient buffer

F - Mech Eng,Light,Heat,Weapons – 16 – F

Patent

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F16F 1/02 (2006.01) B60R 19/56 (2006.01) B65G 69/00 (2006.01) E01F 15/04 (2006.01) B60R 19/02 (2006.01) B60R 19/26 (2006.01) B60R 19/28 (2006.01)

Patent

CA 2218514

A resilient buffer comprises hollow elongate first and second sections (10, 12; 200, 202) which extend transverse to each other. The first section (10; 200) has spaced apart limbs (20, 32; 206, 210, 234) and the second section (12; 202) also has spaced apart limbs (23, 29; 214, 230). The spaced apart limbs (20, 32; 206, 210, 234) of the first section (10; 200) are joined at one pair of adjacent ends, as are the spaced apart limbs (23, 29; 214, 230) of the second section (12; 202). The spaced apart limbs (20, 32; 206, 210, 234) of the first section (10; 200) are joined to the respective spaced apart limbs (23, 29; 214, 230) of the second section (12; 202) to form a closed loop which enables relative flexing to take place between the first and second sections (10, 12; 200, 202). The buffer may be formed from a single strip of material bent to form a closed loop. In one embodiment the buffer may be L-shaped, whilst in another the buffer is I-shaped. The buffer provides a progressively increasing resistance to and absorption of impact. The impact energy is dissipated over the closed loop.

Ce butoir élastique comprend des première et seconde sections (10, 12; 200, 202) creuses, de forme allongée, s'étendant transversalement l'une par rapport à l'autre. La première section (10, 200) est composée d'éléments séparés, espacés (20, 32; 206, 210, 234), la seconde section (12, 202) étant également composée de tels éléments (23, 29; 214, 230). Les éléments (20, 32; 206, 210,234) de la première section (10; 200) sont assemblés au niveau d'une paire d'extrémités adjacentes, comme le sont ceux (23, 29; 214; 230) de la seconde section (12; 202). Les éléments (20, 32; 206, 210, 234) de la première section (10; 200) sont respectivement assemblés aux éléments (23, 20; 210, 234) de la seconde section afin de former une boucle fermée permettant un fléchissement relatif entre les première et seconde sections (10, 12; 200, 202). Ce butoir peut être formé à partir d'un simple ruban de matériau plié afin de former la boucle fermée. Dans un mode de réalisation, le butoir peut présenter une configuration en "L", tandis que dans un autre mode de réalisation, il peut présenter une configuration en "I". Ce butoir apporte une résistance aux chocs et une absorption de ceux-ci progressivement croissantes. La force du choc se dissipe le long de la boucle fermée.

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