US1967379A - Trailbuilder bowl for wheeled vehicles - Google Patents

Description

July 24, '1934. 1 s, STEWART 1,967,379

TRAILBUILDER BOWL FOR WHEELED VEHIQLES Filed 001'.. 20. 1935 Patented July 24, 1934 PATENT OFFICE TBAILBUILDER BOWL FOR WHEELED VEHI CLES

James 8. Stewart, Sidney, Ohio. asllgnor to The Slusser-Mclean Scraper Company,

Sidney,

Chio, a corporation of Ohio Application October 20, 1933, Serial No. 694,508

6 Claims.

This invention relates to new and useful improvements in trailbuilder bowls for wheeled vehicles.

One of the principal objects of my invention l is to provide for attachment to a wheeled vehicle such as a tractor, an extremely flexible trailbuilder bowl that may be set at desired angular positions in a horizontal or a vertical plane without strain. To this end my invention contemplates the provision of means for pivoting the bowl to a horn mounting in such a manner that it may be easily moved about that mounting while the latter is in a stationary position.

Another object of my invention is the provision of means for firmly holding the bowl in any of its adjusted angular positions.

Other important and incidental objects will be brought out in the following specification and particularly set forth in the subjoined claims.

In the accompanying drawing illustrating my invention. Figure 1 is a partial side view of a conventional tractor to which my trailbuilder bowl is attached. Figure 2 is a vertical sectional view taken through the horn mounting for the bowl on the line 2-2 of Figure 1. Figure 3 is a top plan view of the bowl and its horn mounting, showing in dotted lines one extreme horizontal angular position of the bowl. Figure 4 is a perspective view of one of the struts for holding the bowl in its normal position illustrated in full lines in Figure 3. Figure 5 is a sectional view taken on the line 5-5 35 of Figure 2. showing the means for guiding the vertical movement of one end of the bowl. And Figure 6 is a detail sectional view of the lower edge of the bowl plate, showing how the blade is secured thereto.

Referring to the accompanying drawing for a detailed description of my invention, the numeral 1 designates the front end of a conventional bulldozer carrying pivoted side frames 2, 2. Secured to the free front ends of these frames by means of plates 3 and throughbolts 4, are the enlarged ends 5, 5 of a horn 6.

Attached to the top surface of each end 5 of the horn 6, is a bracket plate 'l carrying a bracket arm 8. Secured by a ball and socket 50 joint 9 to each bracket plate is an elevator bar 10 which, at its upper end, is secured by a similar joint 11 to the outer free end of a lever arm 12 attached to a front cross shaft 13. This shaft is adapted to be rotated by a lever arm 14 pivotally attached at its free end to the outer end of a piston rod 15. The latter may be projected or retracted by a fluid cylinder 16 to which fluid is supplied through hose ccnnectons 17 and 18 from a conventional fluid pump (not shown), to raise or lower the horn 6 carrying a flexible bowl 19 now to be described.

'Ihe bowl 19 consists of a main concave steel plate 20 having a rearwardly projecting top 21 and a rearwardly projecting bottom 22 welded' thereto. Welded, or otherwise secured, to the middle part of the inner surface of the plate 20 is a metal box member 23. Pivotally secured to the middle portion of this box member 23, by a short stud 24, is a channel-shaped cross arm 25. Welded or otherwise secured to the top flange of the cross arm 25 immediately behind the box member 23, are bracket webs 26,

26, below which there are secured to the lower flange of the cross arm, similar bracket webs 27, 27. Both pairs of these webs are welded to, and act as reinforcing members for, a backing plate 28 that in turn is Welded to the front face of the channel cross arm.

The stud 24 passes through a central hole in the plate 28, the latter being formed above and below the cross arm 25 with upper and lower arcuate slots 29 and 30 respectively. Studs 31.

31 anchored in holes in the face of the box 23, project rearwardly through these arcuate slots,

to assist in supporting the bowl, as well as to limit its travel when tilted in either direction about the stud 24. Nuts 32 are adapted to be applied to the inner threaded ends of the studs 31, 31 to assist in firmly holding the bowl in an adjusted vertical position against the forces which act against it when it is moved through the ground.

The channel cross arm 25 is pivotally secured to the apex end 33 of the horn 6 by a vertical stud 34 which projects through registering holes 95 in the top and bottom flanges of the cross arm, and in the top and bottom walls of the cross arm between them. (See Figures l and 2.)

For the purpose of bracing each side of the bowl 19 in any of its adjusted vertical positions. 100 I have provided the following preferred means. Welded or otherwise secured to the rear surface of the concave bowl plate 20, one near each end thereof, are flanged supporting members 35, 35 which extend fromthe top to the bottom 105 portions of the plate. Welded or otherwise at tached to the rear surface vof each supporting member 35 are concentric arcuate rails 36, 36 having inwardly projecting flanges that are spaced to form together a slot to receive a T shoe 37 'secured to the front face of the channel cross arm 25. These shoes 37, 37, which are adapted to slide through the T slots formed by each pair of rails 35, 35 carried by the bowl 5 plate 20, assist in bracing each side of the latter against the forces which act upon it during an earth moving operation.

'I'he side wall 38 of each supporting member projects rearwardly beyond the vertical plane of the front face of the channel member 25, being formed with a vertical row of apertures 39 to receive the end of a locking pin 40. The locking pins 40, 40, which are adapted to enter the apertures 39 in the side walls 38, 38 of the supporting members 35, 35, to assist in firmly holding the bowl 19 in an adjusted vertical position, are securedl to the ends of the channel cross arm 25 in the following manner.

Welded or otherwise attached to the top ange of the cross arm 25, near end thereof, is an upstanding plate 41 formed .with a hole to receive a respective locking pin 40. .Secured between each plate 41 and the projecting end of a curved shoe 42, welded to each end of the channel cross member 25, is a sleeve 43 through which the free end of the locking pin is adapted to be forced into a selected aperture 39 in the side wall extension 38 of the supporting member 35. The locking pins 40, 40 have bent inner ends so that they may be easily grasped for the purpose of forcing them through the sleeves into the apertures that may be at the time in front of the registering holes in the shoes 42, to hold the bowl in an adjusted vertical position, or for the purpose of readily withdrawing the pins from these apertures so that the bowl plate 20 may be swung to another desired vertical position.

The means for holding the bowl 19 in its various angular positions in a horizontal plane will now be described. 'Ihe top and bottom i'ianges of the channel cross arm 25, near each end thereof, are provided with oppositely disposed holes 44, 44 to receive a connecting pin 44.

Each pin 44 is also adapted to be forced through oppositely disposed holes 45, 45 in triangular anges 46, 46 respectively, in a strut 47. 'Ihere are two of these struts, one for each side of the machine and each comprising a flat steel member having the anges 46, 46 formed at one end and triangular flanges 48, 48 near its other end, which is curved slightly outward beyond them. The flanges 48, 48 which are the inner ones, contain oppositely disposed holes 49, 49 respectively to receive a connecting pin 50.

Each strut 47 is adapted to be connected to its respective end of the channel cross arm 25, by bringing it to a position wherein its flanges 46.

48 will straddle the cross arm, and its front end will solidly abut the rear edge of the shoe 42 to take the strain from the connecting pin 44', which is forced downwardly through the registering holes 44 and 45. On the side of each rear end 5 of the horn 6, there is welded a vertical thrust member 51 against which the rear curved end 51 of-a respective strut is adapted to abut to take the strain from the pin 50 which passes through the holes 49, 49 in the flanges 48, 48 that straddle the horn end, and through. registering holes in the walls of the latter.

When both struts are connected between the channel cross arm 25 and the horn ends 5, 5, as illustrated by the full lines in Figure 3, and as described above, the bowl 19 will be rmly held in a position at right angles to the longitudinal axis of the machine.

By withdrawing the connecting pins 44* and 50 the struts 47, 47 may be removed to permit the bowlto be swung either to the right or to the left, for connection as follows to the horn Vin either one of its extreme horizontal angular positions. When the bowl is moved to the left, for example, as indicated by its dotted line position in Figure 3, the flanges of the channel member 25 will straddle the left horn end 5 to permit the left connecting pin 50 to be passed through the channel member holes 44, 44 and the holes in the horn, with which they have been brought into registry. The left connecting pin 50 thus serves to hold the bowl in its extreme left horizontal position. By withdrawing the pin 50, the bowl may be swung around to its extreme right position and connected to the right horn end by passing the right pin 44* through the registering holes in the right end of the channel arm 25 and. the right horn end. When th bowl is in the4 dottod line position, a strut similar to the strut 47, but longer than the latter, is employed to brace the opposite end of the bowl as shown in dotted lines in Figure 3.

Welded or otherwise secured to the box member 23 and the supporting member 35, are triangular ribs 52 which are also welded to the lower inner face of the bowl plate 20 to stiften the latter. The lower edge of the bowl plate 20 is formed with a series of laterally spaced holes to receive bolts 53 by which a reversible blade 54 having opposite beveled edges is secured to said bowl plate. (See Figures 1, 2 and 6.)

It will be seen from the foregoing description that I have provided for an earth moving device. a bowl which is easily adjustable in a vertical and a horizontal plane, without strain, to a desired angular position, with means for flrmly holding the bowl in that position when it is moved through the ground.

The extreme flexibility of the bowl, together with its-rigidity in an adjusted position, make it one which is eminently adapted for bulldozers and other earth moving devices where frequent blade adjustments are necessary to accommodate it todiiferent ground conditions and under which it is necessary to hold the bowl solidly during an earth moving operation.

I do not wish to be limited to the details of construction and arrangement herein shown and described and any changes or alterations may be made therein within the scope of the subjoined claims.

Having described my invention, I claim:

l. A material moving device adapted for attachment to a vehicle, consisting of a horn carried by said vehicle, a bowl, a channel member to whose vertical face the bowl is pivoted for' adjustment in a vertical plane, said channel member straddling the apex end of said horn, and a vertical pivot connecting the channel member to the horn for a horizontal movement about the latter.

2. A material moving device adapted for attachment to a vehicle, consisting of a horn carried by said vehicle, a bowl plate, a horizontal member to which said plate is pivoted at its middle portion, means for connecting said member to the horn, and a sliding guiding connection between the outer portions of said member and the bowl plate to assist in rmly holding the latter in an adjusted position when moved' through the l ground.

3.l A material moving device adapted for attachment to a vehicle, consisting of a horn carried byvsaid vehicle, a bowl plate. a horizontal member to which said plate vis pivoted at its middle portion, means for connecting said member tothe horn, a sliding guiding connection between the outer portions of said member andthel bowl plate, and locking means associated with each guiding connection to assist in ilrinly holding the bowl plate in an adjusted position when moved through the ground.

4. A material moving device adapted for attachment to a vehicle, consisting oi' a horn carried by said vehicle, a bowl plate, a horizontal member to which said plate is pivoted at its middle portion, means for connecting said member to the horn, members secured to the rear face of the bowl plate, to form an arcuate T slot near each end thereof, and shoes on the pivoted member for travel through said slots to assist in holding the bowl plate in an adjusted position when drawn through the ground.

5. A material moving device adapted for attachment to a vehicle, consisting of a horn carried by said vehicle, a bowl plate, a horizontal member to whch said plate is pivoted at its middle portion, means for connecting said member to the horn, a pair .of arcuate memberssecured to the rear face of the bowl plate, near each end thereof, to form two arcuate T slots, shoes secured to the pivoted member for travel in said T slots, a ilange having vertically spaced holes, secured to each side of the plate opposite a respective arcuate T slot, and a locking pin carried by each side of the pivoted member over a. respective slot, for entrance into a selected hole in the adjacent side ilange.

6. An earth moving device adapted for at'- tachement to a wheeled vehicle, consisting of a triangular horn carried by the front part of said vehicle, a bowl pivotally secured at its middle portion to the apex end of the horn, a strut member adapted to be placed between each end of the bowl and the horn, and pins for removably securing the ends of the struts to the bowl and the horn, the struts adapted to be removed by the withdrawal of said pins, after which the bowl is adapted to be swung either to the right or to the left for connection at one end by a rear pin to the horn.

JAMES S. STEWART.

ias'

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