US1978711A - Antislip device - Google Patents

Description

oci.- 3o, 1934.

0.1.. KEI-:LY

ANTISLIP DEVICE `Filed Nov. 24, 193s INV N TOR.

Patented ct. 30, 1934 IUNITED STATES PATENT ANTISLIP DEVICE Oren L. Keely, Oklahoma City, Okla.

Application November Z4, 1933, Serial No. 699,573 1 claim. (e1. 3647.6)

This invention relates to a builders accessory. t is designed to serve both as a ladder-climbing and roof-walking device.

An object of the invention is to insure positive treadegrip when traversing particularly a pitched roof, and to shieldithe arch oi the foot from the weight of the body when standing on the rung of a ladder.

On the sheet of drawing,

Figure lis a plan view of a device, made in accordance with the invention, and showing the binding straps;

Figure 2 is an end view of the toe-portion oi the the strappings being omitted;

Figure 3 is a side elevation view, straps also being omitted, and

Figure fi is an elevation view of the heel portion o1' said device.

In these views, like characters of reference will apply to like parts.

The device is applied to the foot when the shoe is on. The sole plate 5 of metal, preferably, has an outwardly curved toe 6, and from or near the centre of this sole plate, the same rises to the heel portieri (see Figure 3).

At the heel and toe portions of the sole plate 5, there are upwardly extending lugs 8, 9, 10 and ll, which serve as supports against lateral movement of the shoe with respect to the sole plate 5, and the latter two lugs 10 and 11 are also provided with ears 12 in which vertical slots are `formed, These rearward supporting lugs lil and l1 are provided with Adownwardly slanted slots 14, while the front supporting lugs 8 and 9 are formed with horizontal slots 15.

The toe-portion 6 curved outwardly, is formed from the material of the sole plate 5 into downwardly extending and equidistantly disposed spurs 16, (see Figure 2 and theobject of so arranging these along said curved front is to canse the pressure from the tread of the foot to successively make the spurs 16 take, and do so in spun-taking succession, since the foot naturally iirst delivers the pressure centrally, then weaves from side to side intermittently during the movement of the body and the foot.

Just baci; of these spurs, and along a similar curve is another set of spurs 17 stamped out of the sole plate 5 at 18 (see Figure 1) and the explanation made for the position of spurs 16 will also apply here, with the additional suggestion that these spurs 17 being under the pres` sure o1 the ball or the foot will insure a positive grip to a surface when the device is in use. By reierence to Figures 3 and 4, respectively,

it will be noticed that the heel portion 7 is elevated above the toe portion 6, and is also provided with heel spurs 18 but these are oarried by an apron 19 so as to maire the points of these spurs 1S fail in the same horizontal 60 plane with the points of the toe spurs 16. This l permits the foot to assume its natural position and tread when the device is put to use.

Just to the rear of the spurs 17, under the ball of the foot, are side spurs 20 depending 65 from sole plate 5 and nearly in line with the outer spurs of the spur line 17, these spurs 20 providing against lateral slippage should the foot be placed in a position where such slippage might occur.

For the purpose of holding the sole plate 5 to the sole of a shoe, a strap is laced through the slots 14 and 15 as shown, or, in other words, the portion 21 may be regarded as that part which takes over the vainp of the shoe, while portion 22 takes the tarsus. The portions 23 and 24 between these two portions 21 and 22 cross over the rnetatarsus, and when they are drawn taut, the end 2li is slipped through the buckle 25 and fastened in the usual manner. 80

Through the vertical slots 13 in the ears 12 of the supporting lugs 16 and l1, is laced a heelstrap 26 that is to be drawn tightly about the `heel of the shoe, and the end 27 is secured in a buckle (not shown) on the end 28 of the strap 85 26.

The sole plate 5 intermediate of the heel and toe portions 6 and 7 provides a shieldfor the arch of the foot against 'the weight of the body when standing upon the rung of a ladder, the 9o pressure being taken by the plate instead of under the arch of the shoe.

Having thus set forth the invention, I claim:

A builders accessory oonsisting of a sole plate having a rounded front end, depending spurs equidistantly disposed about said rounded. end, a straight heel portion, a drop apron thereunder, spurs depending therefrom, a set of spurs depending from and formed oi the sole plate intermediate the heel and toe portions of said plate, laterally located spurs near the intermediate spurs at each lside of the sole plate, upstanding supports having slots; ears carried by the rear supports and having slots, a heel strap laced in said ear slots, and a foot strap laced in the upstanding supports.

OREN L. KEELY.

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