US2830847A - Traction device - Google Patents

Description

April 15, 1958 s. SAMARAS TRACTION DEVICE Filed Nov. 19, 1954 \k9 5o \SQCEA re: ,50 I BY INVENTOR. S MAQAS United States Patent TRACTION DEVICE Socrates Samaras, Amesbury, Mass.

Application November 19, 1954, Serial No. 470,100

1 Claim. (Cl. 301-44) This invention relates to improvements in traction devices for attachment to vehicle wheels.

The primary object of the invention is to provide more practical and efficient traction devices which are capable of being quickly and easily applied to vehicle wheels, and which can be made in rugged and serviceable forms at relatively low cost.

Other important objects and advantageous features of the invention will be apparent from the following description and the accompanying drawings, wherein, for purposes of illustration only, specific forms of the invention are set forth in detail.

In the drawings:

Figure 1 is an outboard side view of a traction wheel according to the present invention, shown applied to a vehicle wheel;

Figure 2 is an edge view, partly in section, of the traction wheel of Figure 1, a portion of an associated vehicle wheel being shown in phantom lines;

Figure 3 is a fragmentary enlarged sectional view taken on the line 3-3 of Figure 2;

Figure 4 is a fragmentary outboard side view of a modified form of the invention;

Figure 5 is a fragmentary enlarged sectional view taken on line 5-5 of Figure 4; and

Figure 6 is a fragmentary sectional view taken on line 6-6 of Figure 5.

Referring in detail to the drawings, a conventional vehicle wheel 9 is shown having a hub 9 through which mounting bolts 10 project in a conventional manner. The form of the invention shown in Figures 1 to 3, and generally designated 12, comprises a disk 14 having a concentric annular flange 16 extending about the perimeter 13 of the disk 14 and having formed therein equally circumferentially spaced concave indentations 18, the purpose of which will hereinafter appear. The disk 14 is indented to provide a hub portion 17 provided with a central opening 20, and with holes 22 to receive the bolts 10, the hub portion 17 being arranged to register with and engage the hub portion 9' of the vehicle wheel 9. The indented hub portion 17 produces outboard spacing of the disk 14 from the vehicle wheel 9. Riveted or otherwise secured to the disk 14 and extending outwardly therefrom around the hub portion 17 are resilient clips 24 by means of which a conventional vehicle wheel hub cap (not shown) can be removably connected to the disk 14 in covering relation to the bolts 10.

Extending centrally through each peripheral indentation 18 is a radial hole 26, receiving a bolt 28 which also 2,830,847. Fatented Apr. 15, 1958 traverses the center of an arcuate cleat 30, whose convex side fits and is held in the related identation 18. The cleats 30 are curved throughout their length and have end portions 32 which reach beyond the ends of the indentations and define spring fingers. Bolted or otherwise secured, as at 34, to the outer or concave sides of the spring fingers 32 are triangular cross section, groundengaging traction blocks 36.

In the modified form of the invention, shown in Figures 4 to 6, a disk 38 has an inboardly offset hub portion 39 provided with wheel bolt receiving holes 42 whereby the traction wheel 12a is secured to a vehicle wheel. The perimeter of the disk 38 is provided with an annular outboard flange 44, and struck from the disk 38 and extending inboardly therefrom are radial rows of eyes 46 in which are received shanks 48 of spring traction fingers 50 which extend outwardly beyond the periphery of the disk 38. Sockets 52, struck from the disk 38, receive the inner ends of the spring finges 50, and each spring finger is provided with a notch 53 for the reception of a lug 54 carried by the socket 52, by means of which the finger is held in position on the disk.

A guard disk 56 has a central portion 57 bolted, as at 58, to the inboard side of the disk 38 to keep the fingers 50 from contacting the tire of an associated vehicle wheel.

While in the foregoing there have been shown and described preferred embodiments of this invention, it is to be understood that minor changes in details of construction, combination, and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

What is claimed is:

A traction wheel for application to a vehicle wheel comprising a disc having outboard and inboard sides, a. concentric annular flange secured to the outboard side of the disc, a central portion of said disc being formed to provide a hub portion for securement to a vehicle Wheel hub, said annular flange having a radially outward side, and resilient ground engaging traction finger means spaced around and fixedly mounted on said disc and having portions projecting outwardly beyond the outboard side of the annular flange, said traction finger means comprising radially outwardly extending spring fingers having radially inward ends and radially outward ground engaging ends, and means securing the radially inward ends of the spring fingers to the inboard side of the disc, and a guard disc mounted centrally and concentrically on the inboard side of the traction Wheel disc, said guard disc having a radially outward portion spaced from the inboard side of the disc, said spring fingers being positioned between said traction wheel disc and said radially outward portion of the guard disc.

References Cited in the file of this patent UNITED STATES PATENTS 1,404,767 Henry Ian. 31, 1922 1,549,004 Kading Aug. 11, 1925 2,249,138 Hill July 15, 1941 2,267,588 Eksergian et al. Dec. 23, 1941 2,311,475 Schmeiser Feb. 16, 1943 2,437,325 Koeppel Mar. 9, 1948

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