Boots – shoes – and leggings – Boots and shoes – Occupational or athletic shoe
Patent
1985-06-17
1986-11-25
Schroeder, Werner H.
Boots, shoes, and leggings
Boots and shoes
Occupational or athletic shoe
36 28, 36 32R, 36 59C, D 2320, A43B 1300, A43B 1304
Patent
active
046240624
ABSTRACT:
A sole (12) for an athletic shoe (10) includes a base member (42) having a main lower surface (22). A contact surface (26) extends downwardly from the base member (42) to below the main lower surface (22) in order to contact the ground or floor before the main lower surface (22) as the shoe (10) descends. The contact surface (26) includes a horizontally elongate, resiliently flexible spiroidal member (38). The spiroidal member (38) has a plurality of involutions (56). Each involution (56) has a plurality of longitudinal portions (52-54) and a plurality of transverse portions (48-50). Portions (48-54) have flat bottom surfaces (30) for frictionally gripping the ground or floor disposed opposite the portions' attachments (96) to base member (42). Portions (48-54) provide a braking, shock-absorbing and anti-slipping action in response to horizontal shear forces normal to them. In a preferred embodiment, contact surface (26) includes an endless member ( 34) that aids in entrapping a cushion of air upon downward force being exerted by the wearer's foot on the floor or ground. In a preferred embodiment, both a plantar contact surface (26) and a heel contact surface (28) are provided.
REFERENCES:
patent: D39747 (1909-01-01), McKenna
patent: D201952 (1965-08-01), Johns
patent: D259595 (1981-06-01), Famolare, Jr.
patent: 1552022 (1925-09-01), Willson
patent: 2155166 (1939-04-01), Kraft
patent: 2421932 (1947-06-01), Goldstein
patent: 4329790 (1982-05-01), Bell
patent: 4571852 (1986-02-01), Lamarche et al.
Autry Industries, Inc.
Howison Gregory M.
Meyers Steven N.
Mills Jerry W.
Schroeder Werner H.
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