SPILLER, BERT APPLETON,NORTON, DENIS W.,AMMON, STEPHEN D.
申请号：
CA2918584
公开号：
CA2918584C
申请日:
2012.10.10
申请国别(地区):
CA
年份:
2017
代理人:
摘要：
An improved welt construction for use in a welted shoe is disclosed, in which the construction contains a number of components, including: (1) an anti-fatigue layer 32 with tapered recesses 38 for providing cushioning (2) a rigid shock diffusion welt-frame back part 60 (3) a flexible forepart welt-frame 66 (4) a torsional shank 72 and (5) a flexible ply rib 76, which may surround a periphery 26 of the support system. A variety of devices for protecting a users foot from injury are also disclosed. In one embodiment, the device may be a metatarsal protection device 318, 330, 390, 118, 190, 220 having a first layer of material with top and bottom surfaces, at least one of such surfaces including a series of cones 336 or a pattern of hexagons 378, 100 thereon. The device 318, 330, 390, 118, 190, 220 may also include a second relatively rigid layer of material overlying the first layer, such that the device is configured to protect the metatarsal region of a users foot against injury.
