US1753065A - Crutch attachment - Google Patents

Description

April 1, 1 930. T; E. PAYNE 1,753,065

CRUTGH ATTACHMENT 7 Filed July 26, 1929 mama Payzze lNVEINTOR ATTOR NEY WITNESS:

Patented Apr. 1, 1930 PATENT OFFICE THOMAS E. PAYNE, OF TOLEDO, OHIO CRITTGH ATTACHMENT Application filed July 26, 1929.

In describing the invention in detail, reference will be had to the accompanying draw-,

ing wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a view of a crutch, with the attachment thereon.

Figure 2 is a sectional view through the lower end of the crutch and through the attachment.

Figure 3 is a section on line 33 of Figure 2.

In these views, the numeral 1 indicates a ferrule adapted to be fastened to the lower' end of the crutch A and this ferrule has its lower end exteriorly threaded, as shown at 2, to receive the threaded upper end of a sleeve 3, the lower end of which is formed with an inwardly extending flange 4. A pair of tubular members 5 and 6 telescope each other, with the inner ends of these sleeve members open and their outer ends closed. These members form a chamber for receiving a spring 7 and they also form an air chamber. These members are placed in the sleeve 3 and in a sleeve 8 which is dropped into the sleeve 3 before said sleeve is attached to the ferrule and said sleeve 8 has an enlarged upper end 9 which engages the flange 4 so that this enlarged part is held in the sleeve 3 and has sliding movement therein. The lower end of the s lgeve 8 is closed and the usual rubber tip 10 is placed over this closed end.

From the foregoing it will be seen that the spring tends to hold the parts with the enlargement 9 of the sleeve 8 against the flange Serial No. 381,231.

4 and the spring also acts to resist upward movement of the sleeve 8 in the sleeve 3, so that the spring and the air in the chamber formed by the members 5 and 6 acts as a shock absorber and enables the crutch to be used with comfort. The parts are easily accessible so that the spring can be substituted by one of greater or less strength to suit the weight of the individual using the crutch.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

l/Vhat I claim is 1. An attachment for a crutch comprising a ferrule, a pair of tubular telescopic members, the upper one of which is detachably connected with the ferrule, a tip on the lower end of the other member, spring means for resisting movement of the lower telescopic member in the upper one and a second pair of telescopic members placed within the first pair and enclosing the spring and forming an air chamber.

2. An attachment for a crutch comprising a ferrule fastened to the lowerend of the crutch and having its lower end threaded, a sleeve having its upper end threaded to the ferrule,-with a flange on its lower' end, a second sleeve having an enlarged upper end 'slidingly fitting in the first sleeve, with its

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