US1620756A - Shackle assembly - Google Patents

Description

March 15,1921. 1,620,756

H. E. CURTIS SHACKLE ASSEMBLY Filed July 8. 1924 FIGURE 1 FIGURE 8 INVENTOR ATTORNEY Patented Mar. 15, 1927.

UNITED STATES rrsu'r HENRY E. CURTIS, OF SAN JOSE, CALIFORNIA, ASSIGNOR 0F ONE-HALF TO JOHN H. BETTS, OF LONG BEACH, CALIFORNIA.

SHACKLE Application filed July 8,

The springs on trucks, motor-basses and similar vehicles are subjected to widely varying loads and, especially in the case of the motor-bus, designed to carry many passengers, this load is sometimes very unequally distributed and the distribution is constantly changing. Any variation in load, of course, effects a variation in the spread of the spring supporting it, while unequal distribution of the load applies a twisting stress to the spring which materially shortens its useful life and necessitates its constant supervision- It is one object of the present invention to provide a shackle assembly whereby proper provision is made for any necessary variation in the spread of the spring, and wherein the rocking or swaying of the vehicle body due to unequal distribution of the load there on or during the increase or decrease of a load thereon, is prevented from twisting the said spring.

It is another object of the invention to I provide a device of the character indicated that will be simple in construction, economical to manufacture, strong, durable, and of few parts, and highly efficient in its practical application.

In the drawing Figure 1 is an elevation of the device in position on a vehicle frame.

Figure 2 is a view on line 22 of Figure 1.

Referring more particularly to the drawing, 1 indicates the shackle housing carrying a plate 2 by means of which it is secured to the frame 3 of the vehicle by rivets 4.

Housing 1 is provided at its lower end with two spaced opposing parts 5 and 6, part 5 being reamed at 7, and part 6 being tapped at 8 so that a bolt 9 may be inserted therein as shown, the bolt being arranged at right angles to the spring 10 as shown.

On bolt 9 is pivotally mounted a sleeve 11 which carries a portion 12 at right angles thereto as shown, this portion being reamed as at 13 to receive a screw bolt 14: on which it pivots.

At 15 is shown a yoke having spaced ears 16-17, ear 16 being reamed at 18 and ear 17 being tapped at 19 so that screw 14 may be inserted through 18 and screwed into ear 17 at 19.

Arranged at right angles to ears. 16-17 are upstanding arms 20-21 arranged in spaced parallel relation to each other, the one being reamed and the other tapped as at 22 ASSEMBLY.

1924. Serial No. 72 1,5580.

and 23 respectivelyto receive screw bolt 2-4; on which spring 10 is hung as shown.

hen this device is mounted rigidly on the frame the normal action of spring 10 under the rise and fall of frame 3 causes the sleeve 11 to swing on bolt 9 thereby permitting the.

desired free action of said spring.

If the frame 3 swings laterally for tical movement of its ends relative to its central portion, and its eliiciency greatly enhanced and its effective life materially pro longed.

It is to be understood, of course, that while I have herein shown and described one specific embodiment of the invention, changes in form, construction and method of operation may be made within the scope of the appended claims.

I claim 1. The combination with a vehicle chassis, of a supporting element mounted thereon, a sleeve pivotally mounted on said element at right angles to the longitudinal axis of said chassis, an upstanding yoke pivotally mounted on said sleeve to swing in parallel relation to the longitudinal axis of said chassis, and a spring mounted on said yoke to lie in parallel relation to the longitudinal axis of said chassis.

2. A shackle assembly comprising a sup port adapted to be mounted upon a vehicle chassis, a sleeve pivotally mounted thereon to lie in a horizontal plane and at right angles to the longitudinal axis of said chassis when so mounted, an upstanding yoke pivotally mounted on said sleeve to swing at right angles thereto, and means for mounting a spring on said yoke.

3. A shackle assembly comprising a support adapted to be mounted upon a vehicle chassis, a bolt mounted in said support to lie at right angles to thelongitudinal axis of the said chassis when the support is so mounted, a sleeve revolubly mounted on said bolt and carrying an upstanding portion at right angles to said bolt, a second bolt revolubly mounted in said upstanding portion of the sleeve, a yoke mounted on said last named bolt, and means for mounting a spring on said yoke to lie in parallel relation to said second bolt.

4. A shackle assembly comprising a support adapted to be mounted upon a vehicle chassis, a bolt mounted in said support to lie at right angles to the longitudinal ax's of said chassis when the support is so mounted, a sleeve revolubly mounted on said bolt and carrying an upstanding portion at right angles to said bolt, a second bolt revolubly mounted in said upstanding portion of said sleeve, a yoke having depending and upstanding ears arranged at right angles to each other, the depending ears being adapted to engage said second named bolt, and means for mounting a spring on the upstanding ears of said bolt.

5. A shackle assembly comprising a support adapted to be mounted upon a vehicle chassis and carrying a pivot normally lying in a horizontal plane at right angles to the longitudimal axis of said chassis When the support is mounted thereon, a second pivot revolubly mounted on said first pivot and positioned thereabove and at right angles thereto, an upstanding yoke revolubly mounted on said second named pivot, and means for mounting a spring on said yoke.

HENRY E. CURTIS.

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