Patent ID: 8657270
Filing Date: 2014-02-25
Classification: F16F,Y10T

Abstract:
1. A cover member having a plurality of peak portions and a plurality of trough portions, and freely stretched and shrunk in an array direction of the plurality of peak portions and the plurality of trough portions or freely bent, the cover member comprising: a hollow part formed in each of the plurality of peak portions, the hollow part being hollowed toward an inner side from a peak of each of the plurality of peak portions, being formed in a circumferential direction, and having edge parts, a bottom part and side parts located between the edge parts and the bottom part, wherein a height H of the hollow part and a distance D between the side parts is set to be D<H, wherein the edge parts of the hollow part are brought into contact with each other before the side parts of the hollow part are brought into contact with each other, when at least one of the plurality of peak portions is subjected to force in a direction intersecting with the array direction from an outside.