作者: David White , Ian White , David Handel
DOI:
关键词:
摘要: A shoe (10) which has a sole (12) with toe portion (14), heel (16) and an arch (18) located between them. two part (20) low block (22) attached to the of includes slot (42) formed therein. high extension piece (24) is through support beam (38) having substantially rectangular cross-section. The capable limited axial pivotal movement within slot. dimensions prevent rotational about its central axis. can be pivoted relative first position wherein it underlies in alignment second lies beneath said sole. bottom lift (28) that extends downwardly engages ground when stowed. This completely enclosed hidden by beveled edge (32) at top vertical heel. detent form spring biased ball (74) incorporated rotatable slotted pivot (52) depression (78) maintain desired position.