US1334700A - Vehicle-spring construction - Google Patents

Description

Patented Mar. 23, 1920.

WILLIAM H. HILL,

OF CANTON, OHIO.

VEHICLE-SPRING CONSTRUCTION.

Specification of Letters Patent.

Patented Mar. 23, 1920.

Application filed" October 3, 1919. Serial No. 828,221.

To all whom it may con ern lie it known that 1, WILLIAM ll. HILL, a citizen of the United States, residing at Canton, Ohio, have invented certain new and useful Improvements in Vehicle-Spring Construction, of which the following is a clear. full, and exact description.

This invention relates to vehicle springs and has for its general object to provide a vehicle spring construction which will furnish n more effective cushion than known sprin 's for the shocks and jars to which a vehicle is subjected in traveling, which will not require hearings or means for lubricat ing bearings, which can be connected to the vehicle in a simple manner and which will not require as much attention at the points of connection as known springs.

Other objects and important features of the invention will appear from the following description and claims when considered in connection with the accompanying drawings, in which- Figure 1 is a side elevation partly in sectlOIL showing a spring embodying the invention and so much of the associated body and chassis of the vehicle as are necessary to illustrate the use of the spring;

Fig. 2 is a detail view of one of the spring sup ports Fig. 3 is a detail view of one of the spring clamps; and

Fig. 4 is a bottom plan view of the springclamp.

As shown in the drawings, the main part of the spring, in which the ll1\ ention is embodied. is of the semi-elliptic leaf spring type. the illustrated spring being shown as having its concave face and its longest leaf 2 on the upper side. Instead of being connected to a spring shackle or other spring bearing by means of a 100 or an eye formed in the uppermost spring eat, the spring of the present invention has the uppermost leaf 2 extended and curved at its ends to form spirals 4 which are shown as rcversely curved so that they encircle the clamps 6 in which the ends 8 of the leaf and of the spirals are held, each of the spirals preferably extending to the inner side of the spring support 10 in which the clamp 6 is carried.

It will be noted that the s )ring support 10 is preferably made in the mm of a fork or yoke so that the upper part of the spiral 4 may pass through between two sides of support i the support and above the clamp 6 and then hicle by any suitable and well-known spring clamp 1.6.

To facilitate the clamping of the ends 8 of the spring leaf and of the spirals 4 in the supports 10, the supports 10 and clamp (i are preferably of the special construction illustrated in Figs. 2 and 3. From an inspection of these figures it will be shown that each side of the support 10 has a downwardly extending part 18 adapted to fit into a recess 20 in the side of each of the spring clamp members 22,- 24, and has upon each side of this extension a flange 26 to receive the clamping bolts which pass through the clamp members and said flanges. The upper clamp member 20 preferably has a shoulder 28 to insure its proper centering between the legs of the spring support, and each of the clamp members preferably also has a channel 30 to receive the end 8 01" the spring leaf 2, each channel being shallow enough so that the two channels do not equal the thickness of the spring.

From the foregoing description, the operation and utility of the novel spring construction will be apparent. Vhen the semielliptie intermediate portion of the spring is flexed so that the spring tends to straighten, the outward movement of the ends of this intermediate portion will cause an unwinding action of the spirals 4 without any tendency to disturb the connection of the end 8 of the spiral with the spring Sudden sharp shocks or jolts will be taken up in the spirals it without perceptible bending of the intermediate seiui-elliptic part of the spring, the extension of the spirals 4 both above and below the clam )5 6 providing ample space and flexibility i tion.

\Vhat I claim as new is:

1. A vehicle spring having its ends rigidly held and comprising a semi-elliptic intermediate portion and a reversely curved spiral between the intermediate portion and each end.

2 A vehicle spring of the leaf sprin type having one leaf rigidly h'eld at its on s and or this shock absorbing ac-l comprising a semi-elliptic intermediate portion, and a reversely curved spiral. between said intermediate portion and each end.

3. In a vehicle spring construction, the

5 combination with fixedly spaced spring supports, of a spring of the leaf spring type having one leaf rigidly connected at its rcspective ends to said spring supports and comprising an intermediate semi-elliptic 1o portion and a spiral between said inter mediatc portion and each connected end, said spiral extending-to the inner side of the nssocintcrl spring support and cncircling the point of connection.

Signed at (Hinton, )hio, thin 25 day of 15 September, 1919.

WILL] .\M H. HILL.

\Vitness: V

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