US2348445A - Road roller - Google Patents

Description

y 9, 4 A. H. BAYER 2,348,445

ROAD ROLLER 2 Sheets-Sheet 1 Filed Jan. 19, 1942 Patented May 9, 1944 ROAD ROLLER August l-l. Bayer, North College HllLOhlo, assignor to Littlelord Brothers,

Incorporated, Cincinnati, Ohio, a. corporation of Ohio Application January 19, 1942, Serial No. 427,335

Claims.

This invention relates to road machinery and more particularly to devices like road rollers which are very heavy and which travel very slowly in use. If such devices are to be moved over a considerable distance, they must either travel along very slowly over this distance or they must be placed upon a truck of some sort and thus be transported to the place where they are to be used. It is an object of the present invention to provide means whereby a pair of wheels may be positioned in such manner as to lift the roller off the roadway whereb the roller may be attached to some towing vehicle and transported at normal speeds over a highway to the place of use. It is an object of my invent'on to provide a construction whereby a pair of rubber tired wheels may be carried upon a road roller and may be moved to a position to support the roller with the roller itself raised from the roadway. It is another object of my invention to provide a device as above outlined which will be very simple in construction and in operation so as not to add excessively to the cost Of the roller. While the invention is disclosed specifically in connection with a road roller, it will be clear that the invention is adaptable to all manner of devices. where a relatively heavy, slow moving or stationary object is to be transported at relatively great speeds.

These and other objects of the invention which will be described in more detail hereinafter or which will be apparent to one skilled in the art upon reading these specifications, are accomplished by that certain construction and arrangement of parts of which an exemplary embodiment will now be described.

Reference is made to the drawings forming a part hereof and in which:

Figure l. is an elevational view of a road roller in traveling position hitched to a towing vehicle which is shown fragmentarily.

Figure 2 is an elevational view of the road roller in operating position.

Figure 3 is a detail view of the portion of the roller to which the invention is applied with the hydraulic system shown diagrammatically.

Figure 4 is a detail elevational view of the crosslever in the position it occupies when the wheels are raised.

Figure 5 is a view of the device of the reverse side.

Fig. 4 from Figure 6 is a detail cross-sectional view on an enlarged scale taken on the line 6-6 of Fig. 5. Figure '8 is a view-similar to Fig. 3, showing the assembly in neutral position. v

Figure 8 is a view similar to Fig. 3 showing the assembly with the wheels down.

Figure 9 is a partial cross-sectional view taken on the line 99 of Fig. 3.

Figure 10 is a detail. perspective view of the end of the piston rod.

Briefly, in the practice of the invention as applied particularly to a road roller, the roller is joumaled in bearings fixed to the roller frame. The running wheels are journaled in a link which is pivoted on the roller shaft. The link is provided with an integral cross element having an arcuate slot therein in which is engaged by means of a pin the piston rod of a hydraulic cylinder which is pivoted to the roller frame. In a neutral position, i. e., when the roller and wheels both rest on the ground the cross-lever assembly is so disposed that the piston assembly may be swung selectively from a, position where the pin is at one end or the other of the arcuate slot. When pressure is applied to the piston, the running wheels are raised or lowered depending upon which end of the slot the piston is positioned. Referring more particularly to Figure 1, there is shown a road roller having a frame I0. Means are provided as indicated generally at H for hitching the roller to' a towing vehicle I2. The roller is driven as by means of a gasoline engine 03' and is provided with a transmission It. At its forward end there is a wheel element It and a steering column l6 and steering wheel ll whereby the roller may be guided. The roller element is indicated at It and the running wheels at It. Referring more particularly now to Figure 3, it will be observed that a bearing bracket 28 is bolted as by means of bolts 2! to the frame 10. In the bracket 20 is 'oumaled the roller shaft 22. Keyed to the roller shaft 22 is the cross-lever indicated generally at 23 which is shown apart from the other elements in Figures 4 and 5. At its other end, the cross-lever 23 is provided with a clamp 24 in which is clamped a stub shaft 25, upon which the running wheel 19, is freely rotatable. The member 23 has integral with it and disposed substantially transversely, the element 26 which carries the arcuate slot 21. The member 28 is of substantially U-shape cross section as shown in Figure 6.

Pivoted to the frame l0 at 28 is a cylinder 29 of a hydraulic jack, the piston of Whichhas mounted transversely of the end thereof as shown at Figure 10, a pin 30. The pin 30 rides in the arcuate slot 21 in each arm of the U- shaped member 26. Oil is supplied to the cylinder 29 through a duct 3! by mean of a Pump May 9, 1944. H. K. GROWALD DETACHABLE GUN MOUNT Filed Aug. 23, 1940 2 Sheets-Sheet l HENRY K. GROWALD.

ATTORNEY.

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