Sports shoe or boot

DETAILED DESCRIPTION An object of the present invention is to provide a sports shoe having projections which are substantially resistant to wear but which nonetheless give comfortable contact with the ground.
Another object of the present invention is to provide a sports shoe wherein the predominant part of the sole thereofcomprises a comparatively inexpensive plastic material and the projections or studs thereon comprise a material which has a considerably higher degree of wear-resistance.
Yet another object of the present invention is to provide a sports shoe which enjoys an enhanced service life in respect of the studs or projections on the underside thereof, without the shoe losing its desired shock-absorbing properties.
Still a further object of the present invention is to provide a design of sports shoe sole structure which can be applied both to projections formed integrally with the sole of the shoe and to projections or studs which are replaceably secured to the sole.
These and other objects are achieved by a sports shoe such as a football shoe or boot comprising an outer sole which consists of a resiliently flexible plastic material, having projections or studs comprising a wear-resistant material on the underneath of the sole.
A resiliently compressible annular portion is disposed between the sole and a bearing surface on the projections or studs or the like, which is towards the sole.
It will be seen therefore that the annular portion which can be deformed resiliently by pressure applied thereto not only permits a certain degree of compression in the axial direction of the projection, stud, calk or the like which bears thereagainst, but it also permits the projection, stud or the like to tilt resiliently, by experiencing deformation on one side.
As a result, when the shoe is subjected to a perpendicular loading or a lateral loading or a combination of such loadings, particularly on rough or bumpy and hard playing grounds, the shoe has a damping or shock-absorbing capability which is at least equivalent to that of boots or shoes with soles and projections carried thereon, comprising a soft yielding material