Chassis unit support

Application filed April 6, 1928, Serial No. 268,038. Renewed February 21, 1930.

This invention relates to a support for a unit to be mounted, upon the frame of a motor vehicle and includes an improved design in which the elements are formed to facili5 tate, materially, the manufacture thereof.

In the copending application of Robert F. Cowell, Serial No. 254.344 filed February 15, 1928, there is described a support or connection which yieldingly mounts a unit upon the 10 chassis frame in a manner such that a desired cushioning between the unit and frame is afforded without permitting undue movement of one element with respect to the other. It has been found, particularly in 15 mountings where an internal combustion engine is carried on the frame through yielding non-metallie cushioning elements, that the vibrations of the engine have caused considerable relative movement between the en20 gine and frame and trouble has been experienced with breakage of the exhaust pipes due to such relative movement. Accordingly, the improved mounting provides the desired universal cushioning while maintain25 ing a connection which is sufficiently rigid to prevent deleterious effects upon the auxiliary mechanisms, such as the exhaust pipe.

An object of the present invention is to provide a support having cooperating seats 30 formed on the elements to be connected so that a direct bearing surface is afforded to receive stresses produced by relative movement of the members in every direction. With this object in view, the cooperating 35 seats are designed so that they may be formed on the respective members in a single operation, particularly where the bracket of the engine is constructed by drop-forging.

The invention will lie understood more 40 fully in connection with the accompanying drawings, wherein:

Figure 1 is a plan view, partly broken away, showing the support constructed in accordance with the present invention.

Figure 2 is a view in section, taken.on line 2—2 of Figure 1, and looking in the direction of the arrows.

Figure 3 is a view in section taken on line 3—3 of Figure 2, and looking in the direc50 tion of the arrows.

Figure 4 is a perspective view showing the form, of engine bracket used, and the manner in which it is constructed by drop-forging, the jaws of the trip hammer used in forging being indicated in their relation to the 55 bracket arm as forged.

Referring to the above drawings, a indicates a bracket arm carried by an engine or other unit to be mounted upon the vehicle frame. Carried with the frame, are brackets eo b for mounting a housing c. The housing is formed in two parts, having an opening tZ for receiving the bracket arm a. L-shaped webs e are formed in the housing and include parallel portions e' and outwardly ex- 65 tending portions e². The vertical sides of these webs form bearing surfaces against which portions of a yielding non-metallic element f engage to receive thrusts transmitted from the bracket arm a. As shown clear- 70 ly in Figure 3, the webs are formed with slightly tapered walls in order that the block of yielding non-metallic material will be wedged into position when the housing sections are secured together by means of 75 bolts g.

Bracket arm a is stamped at its extremity to form a horizontal portion a' having vertically disposed webs a². Webs a² lie between the spaced parallel portions e' of the webs 80 e to provide a bearing surface for longitudinal thrusts of the bracket with respect to the housing. Vertical thrusts of the bracket are transmitted to the non-metallic yielding element f and received by the horizontal sur- 85 faces of the housing c. At the end of bracket a, a vertical web a² is formed which provides surfaces cooperating with portions e* of the webs e and the end of the housing c to cushion axial movements of the bracket a 90 with respect to the housing. The sides of all of the webs are tapered in order that a wedging of the yielding non-metallic material wUl take place when the support is assembled. By the above construction, columns of the 95 yielding non-metallic material f will be provided in every direction so that a portion of the cushioning material will be under direct compression regardless of the direction of the force exerted. 100

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In forming the engine bracket arm a, the jaws of the hammer come together as indicated in Figure 4 in order that the bracket may be properly formed. By designing the 5 webs and flanges in the manner described, the entire bracket may be formed in a single operation, since the jaws of the trip hammer used in forging can be formed to cause the metal to flow to form the webs as described.

It is obvious that the specific construction and positioning of the webs may be varied if desired, at the same time enabling the bracket to be formed with the desired seats in a single forging operation, and the in15 vention is not to be limited, save as defined in the appended claims.