초록 ▼

Upper and lower coupling members are provided to couple a shoe to a bicycle pedal. The lower coupling member has a central, generally circular recess. The upper coupling member has a boss depending from its lower surface to engage in the recess. The upper coupling member is secured by screws to the

Upper and lower coupling members are provided to couple a shoe to a bicycle pedal. The lower coupling member has a central, generally circular recess. The upper coupling member has a boss depending from its lower surface to engage in the recess. The upper coupling member is secured by screws to the cyclist\s shoe. A pair of lengths of spring wire form part of an M-shaped spring secured in the lower coupling member. The boss has a pair of horizontally extending grooves into which the spring lengths snap to latch the coupling members together. A pair of abutments in the recess coact with a pair of flat sides on the boss to limit heel-in shoe movement to an arc insufficient to unlatch the wire lengths from the grooves. In a heel-out rotary direction, however, the boss can turn in the recess through an arc sufficient for the lengths of spring wire to come out of the grooves so that the coupling members can become disengaged by a lifting force on the shoe.

대표청구항 ▼

A coupling between a bicycle pedal axle and a cyclist\s shoe, comprising: (a) a first coupling member attached to said bicycle pedal axle and a second coupling member attached to said cyclist\s shoe, said second coupling member being superposed to said first coupling member, (b) said first coupling

A coupling between a bicycle pedal axle and a cyclist\s shoe, comprising: (a) a first coupling member attached to said bicycle pedal axle and a second coupling member attached to said cyclist\s shoe, said second coupling member being superposed to said first coupling member, (b) said first coupling member having a generally horizontally disposed pad and a generally central recess, said recess having partly circular portions located oppositely in front and back in horizontal plan view, (c) said second coupling member having a boss depending therefrom and fitting into said recess, said boss having partly circular portions located oppositely in front and back in horizontal bottom view so that said boss can turn through a limited arc due to the circular portions of said recess and said boss, said portions of said boss between said circular portions thereof on opposite sides being noncircular, (d) said boss having horizontally extending grooves front and back in the areas of said circular portions thereof and said first coupling member having spring means including horizontally extending lengths of spring wire in front and back of said recess in the areas of said circular portions of said recess, said lengths of spring wire being spring pressed toward each other and into said grooves to latch said coupling members together when said shoe is in normal disposition relative to said pedal axle, said spring wires becoming unlatched from said grooves when the cyclist\s foot rotates said cyclist\s shoe sufficiently out of normal disposition relative to said pedal axle whereby said coupling members can be separated, and (e) said first coupling member having an abutment on at least one side of said recess limiting rotation of said shoe relative to said pedal axle in a heel-in rotary direction so that said lengths of spring wires only unlatch from said grooves when said shoe is rotated relative to said pedal axle in a heel-out rotary direction.