US 2433303 A
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Description (OCR text may contain errors)
Dec. 23, 1947.
Patented Dec. 23, 1947 UNITED STATE-S PATENT OFFICE yTsi;lt'f SHOE ciseau-1n spirit-st. Moritz, fstvitzeiana Applicationluly 29, 1941,-Serial No. '404565 In Switzerland uMay 3, 1940 section 3, Public Law teo, Auguste, i946 Patent expires May 3, 1960 Y (ci. afi-59) r`'2 Claims.
The present Vinvention relat'e's to new and useful improvements in sport shoes and has special reference to the formation of the 'exterior surface of the sole thereof. Theinvention consists of the construction and arrangement of the parts thereof as will be more fully hereinafter described 'and claimed. Y
Mountain shoes having metal 'fnails 'or V"spikes are objectionable and even dangerous in many respects. The nails and spikes become worn and blunt and will not take the icy ground or the wet rock and tend to cause slipping or skidding instead of preventing it.
The object of this invention is to provide a sport shoe having a, sole yof rubber and having ribs with angular engaging edges which increase the frictional contact when climbing in the rocks, etc., and obviating and dispensing with the use of nails and spikes which have been in common use especially for mountain shoes.
With these and other objects in View the invention consists of the construction, arrangement and combination of parts herein shown and described and more particularly pointed out in the appended claims.
In the drawings wherein like reference characters indicate like or corresponding parts:
Fig. 1 is a view of the bottom of the new sole,
Fig. 2 illustrates part of the sole in aside view,
Fig. 3 is a section taken on the lines III-III of Fig. 1.
Fig. 4 shows a modified construction of the ribs on the sole in a cross section,
Figs. 5 to 8 show each in a, plan View a modified construction and arrangement of the ribs.
Fig. 9 shows a section of the attachment of the rubber sole on the leather sole f the shoe.
Referring to the drawings A denotes the sole of rubber made in accordance with my invention and is provided with a plurality of ribs I, 2 and 3 of different length and shape. Each rib I, 2 and 3 is provided with two slanting faces a, b meeting in a line c. The ribs I are standing at a right angle or approximately so to the outline of the sole A and of the heel B and the shorter ribs 2 are parallel with the Said edge or nearly so. The ribs I have flanks g slanting inwardly. The inner end of each rib I is stepped by e, the inner faces d of the ribs I, 2 and 3 are slanting too. The length of the ribs I differs slightly, leaving a eld in the centre of the sole and of the heel in which the ribs 3 are arranged, Each rib 3 consists of two members slanting at right angle to each other, the members being alike in shape and size. Each has the slanting faces a, b,
d 'and g. The ribs "I, '2 'and 3 are distributed over 'I'he ribs I `to 3 provide the contacting edgescftoincrease the friction ofthe sole on the surface, on which it may bear and thereby provide ashoe which is especially-applicablefor mountain climbing. The foot `will nd-a 'rm grip bi'l'a lWet 'and iyrock. Therbs I,f'2, 3 provide a great number of contacting angular edges to obviate lateral movement or sliding of the sole. As the angular edges c of the ribs I, 2 are set at a right angle either forward or backward as well as sideward slipping is prevented.
'Ihe outline of the sole may diier, it may have the shape as denoted by the dotted line f (Fig. 1).
As shown in Fig. 4 the height of the ribs I, 2 and 3 may be reduced, it may be mad-e proportionate to the size of the shoe and thickness of the sole and adapt the improvement for use in connection with either ladies or mens shoes and for any other sporting as well as general purpose.
The principle underlying my invention may be embodied in a sole as shown in Fig. 5. A rib 6 having a cross-section as shown in Fig. 3 runs along the edge of the sole A. At equal distances apart cross ribs 'I are arranged having a shape as shown in Figs. 2 and 3. The angular edges c of the ribs 6 and 'I extending at right angles to each other increase the frictional resistance of the shoe to sideslip in any direction.
In Fig. 6 two different embodiments of my invention are shown by way of examples, one above and one below the centre line.
In the example illustrated above the centre line (Fig. 6) the'ribs have angular` or L-shape. Two members 8, 9 join at a right angle. The ribs have the cross-section as described with reference to Figs. 1 to 3. The ribs are directed with the longer member at a right angle to the outline of the sole and the heel.
In the example shown in the lower half of Fig. 6 the ribs 8', 9 have T-shape. The longer members 9 of the ribs run right to the edge of the sole A and of the heel B. In the centre space I0 short ribs II or spikes are arranged regularly distributed over the middle field.
The sole shown in Fig. 7 shows long double ribs I2 running at a. right angle to the outline of the sole and shorter ribs I3 running parallel to the outline and at some distance apart therefrom. The cross-section of the ribs and the general arrangement is the same as described with ref erence to Figs. 1 to 3, except that the base of the ribs I2 has double the breadth, but there are two ridges c. In the centre of the sole A and of the heel B are ribs I4 at equal angular displacement.
The Fig. 8 shows a configuration in which the ribs l5, I5 are running at right angle to the outline of the sole and are interconnected by a rib I6. From the member I5 branch two ribs Il which run to different sides of the member l5' and which end in short members I8, i8 running parallel to the members l5, I5.
The rubber sole A and the heel B are cast in one piece. Ribs are arranged at the bridge C close to the heel. It will be also observed that each of the numerous ribs presents at least one ridge adapted to increase the hold of the shoe on the ice preventing slipping in any direction.
Snow and ice or what material it may gather between the ribs may be readily forced out by the movement of the foot which will bend the sole as will be readily understood. It will be obviously apparent that the dimensions of the ribs, their height may be made proportionate to the size of the shoe and the thickness of the sole.
The rubber sole A may be 'cemented to the leather sole D of the shoe' and may be further fastened thereon by metal staples 4 (Fig. 9). It is of advantage to place a layer of fabric between the rubber sole and the leather sole when cementw ing the soles together.
Having thus described the invention, what is claimed as new is:
1. As an improved article of manufacture a rubber sole for a shoe especially for climbing in mountains and for general sporting purposes having ribs distributed over sole, bridge and heel of the shoe, some ribs running at right angle to the outline of the sole and heel and intermediate ribs running parallel thereto.
2. As an improved article of manufacture a rubber sole for a shoe especially for climbing ln mountains and for general sporting purposes having a plurality of ribs distributed over the wearing face of the sole and heel of a shoe, each rib comprising a broad base and a top ridge with slanting walls a, b.
REFERENCES CITED The` following references are of record in the le of this patent:
UNI'IED` STATES PATENTS Number Name Date 1,528,782 Perry Mar. 10, 1925 FOREIGN PATENTS Number Country Date 27,166 Great Britain 1903 722,098 France Dec. 28, 1931