US2188892A - Ditcher - Google Patents

Description

A. L. MEYER Jan. 30, 1940.

Filed April '7, 1939 2 Sheets-Sheet 1 Jan.30, 1940. A. L. MEYER 2,188,892

DITCHER Filed April' 7, 1959 2 Sheets-Sheet 2 Patented Jan. 30, 1940 DITCHEE' Alvin L. Meyen Fairfield, Mont. Application April 7, 1939, Serial No. 266,903;

4 Claims.

Thisyinvention relates to ditch digging devices, andmore particularly to a digger "embodying a triangularly shaped plow anda mobile frame including a pair of rear-wheels which are adapted to straddle the ditch formed ,by-the plow.

An object of the invention is to provide an im* proved ditch digging device of this type which is simple in construction, and which is so cona ditch of dea device of this type including a mobile frame and a plow supported relative to the frame, the plow being so supported at the rear thereof that it may have relative horizontal movement with respect to the frame.

Another object of this invention is to provide a ditch digging device of this type including an improved means for elevating or lowering the plow. I

A further object of the invention is to provide in a ditch digging device of-thistype," means whereby the operator may stand on the plow between the sides thereof, the supporting means being constructed in the form of a platform which is also adapted to brace thesides of the plow.

hereinafter appear, the invention consists of the novel. construction, combination and arrange ment of parts aswill be more specifically described and illustrated in the accompanying drawi.ngs,wherein is shown an embodiment of the invention, but it is to be understoodlthat changes, variations and modifications may be resorted to which fall within thescope of the invention as claimed.

Figure 1 is a detailside elevational viewj'part -f 1y broken away, of a ditch digging device 'constructed according to an embodiment of this im venticn; and 1 t Figure 2 is a detail top plan, partly broken' away, of the device.

Referring to the drawings numeral l0 desighates generally a mobile frame, comprising a pair of forwardly convergent side bars H and a rear connecting bar !2. The bars ll and-l2 forming the frame, are formed of angle iron and the side bars .Hhave one side l3 thereof horizontal and the other side 'I 4 vertical. sidebars II are secured to. the rear bar I2 by means of fastening devices 15.

A vertically disposed front bearing 15 is. posi- To the foregoing objects and others which may The rear ends of the tionedforwardly of the convergentv ends of the fiideysbars, H and. a. substantially. triangularly' shapedplate I'I'is formedinteg'ral with the bearor sides i i of the angle bars ll and are secured thereto by meansof fastening devices E9 in the form-of bolts or the like. a I A caster wheel 20 is journalled on a shaft- 2! extending betweena pair of rearwardly extending arms 2'2, which are carried by the lower end of a vertical shaft 23; The shaft 23 is journalled in the bearing it and'a washer M-engages about the'shaft 23 on the upper end of the bearing 16. A cotter pin or locking. member 25 extends through the shaft 23 above thewashe'r it so as to holdthe shaft 23 against endwise movement. A bracing web" 26'connec'ts the rear portion of the bearing I6 with'the underside ofthe plate l1 so as to properly brace the bearing 16 and maintain this bearing ina vertical position;

A pair of stub-shafts 21 are disposed beneath;

the rear frame bar l2 and. are secured thereto bymeans of fastening devices 28. e A wheel 29 is rotatably mounted on each stub shaft 2'l and the wheels 29 are adapted to engage on opposite sides of the ditch formed by the plow supported from the frame 1B,:as will hereinafter be described. A

plow, generally designated as 30, is adjustably supported from the frame in and comprises a pair of forwardly convergent side members or moidboardstL, The side members St, at their forward convergent ends, areJconnected together by means of a plate 32 which is secured, as: by

fastening members 33, to'the forward ends of side platej3j2 forms a cutting or digging member which is adapted to form a relatively-narrow channel at the bottom of the channel formed by the mold 'boardstl. :1 I The rear ends: of the moldboards 3|. are con nected together. by means of an" end member 35.

The mold boards '31,. adjacent the rear thereof, are eachprovi-dedwith a vertically disposed bar 36 which is securedto a1mold board 3! on "the inner side thereof, as by'zwelding, or the like, and

preferably the bars 36 and themold boards 3! are formedwith vertically spaced apart openings v31. A pivot member 38 "is adapted to engage througha selected op'ening3l and-is also adapted to slidably engage ina horizontally disposed 61011,-

mold boards 3|, and engages on the opposite ends thereof, on a supporting member 4|, secured to the inner face of a mold board 3|. The platform 48 forms a bracing means between the mold boards 3|, so as to prevent inward bending thereof, and also forms a means whereby the operator of the device may stand on the plow 38 between the mold boards 3|, during the operation or use of the plow. 1

A pair of vertically disposed elongated guide members 42 are disposed above the frame I0, and each guide member 42 is provided with a horizontal flange 43. A pair of vertically disposed supporting members or bars 44, having a horizontal extension 45 at their upper ends, are secured, as by fastening members 46, to the flanges 43 at the forward ends thereof. The supporting members 44 are secured. at their lower ends to a transversely disposed forward angle bar 41,

which is secured, as by fastening means 48, to

the side frame members The lower ends of the supporting members 44 are secured to the vertical side 49 of each angle member 44, by fastening members 56.

A pair of'vertically disposed rear'supporting bars 5|, providedwith forwardly extending upper end portions 52, are secured by fastening means 53 to the rear ends of the flanges 43. The lower ends of the supporting bars 5| are secured to a vertical side 54 of a. transversely extending angle member 55 which is secured byfastening' means 56 to the frame members The lower ends of the supporting bars 5| are secured by fastening members 51, to the vertical side 54.

A vertically disposed rack or toothed bar 58 is slidable between guide members 42 and the lower end of the rack bar 58 is pivotally secured at the convergent ends of a pair of forwardly convergent supporting bars 59 which are secured at theirv divergent ends by fastening means 60 to the innersides of the mold boards 3|. Asshown in Figure 1, the supporting bars 59 are disposed on a forward and upward inclination, and the lower end of the rack bar 58 is pivotally secured, as at 6|, to the convergent ends of the supporting bars 59. The bars 59 are provided with a forwardly extending member 62'which extendsforwardly of theforward upper ends of the mold boards 3| A link 63 is secured at its forwardend to the bracing web 26, as at 64, and the rear end of the link 63 is secured, as at 65, to the extension 62. I

A shaft 66 is journalled through the guide members 42 and a pinion or gear 61 is fixed to the shaft 66 between the guide members 42 and meshes with the teeth of/the' rack 58. A hand wheel 68 is fixed to one end of the shaft 66 and provides a means whereby the plow 38 may be" vertically rocked on thepivot members 38.: A transversely disposed guide member 63 extends between the guide members 42 and/is adapted to engage against the edge .of the rack bar 58 opposite from the teeth carried thereby. The hand A transversely extending draw bar 12 is se side member ll of the frame.

In the use and operation of this plow a suit= able power means is adapted to be connected to the draft bar 12 The plow 3|).may be lowered at its forward end by removing the locking pin 16, so as to permit rotation of the wheel 38 in a.

direction to lower a rack bar 58. When the plow 36' has been lowered to the desired degree the wheel 68 may be locked by inserting the pin 10 through the guide members 42 and between a pair of spokes ll carried by the wheel 68. Lowering of the plow 36 will cause the pivot members 38 to slide forwardly in the horizontal slots 39 of the side members By providing the plow 36 with the plurality of spaced openings 31, the

width of the ditch formed by the plow 36 can be easily and quickly adjusted. The depth of the ditch is controlled by the position of the forward end of the plow 30, as regulated by the hand wheel 68. A plowconstructed according to this invention will form a ditch of desired depth and width and where the widthof the ditch being formed is less than the space between the rear ends of the moldboards 3|, the projecting portions of the mold boards 3| will form a means to throw the loose dirt laterally of the upper edge of the ditch. By providing a flat cutting mem ber 32 on the front end of the plow 36, the loosened dirt is not apt to drop down into the bottom of the ditch as would be the case where the forward ends of the plow mold boards are connected together in the form of a sharp point.

What I claim is: 1. A ditchdigging device comprising a mobile frame, a triangularly shaped plow, said frame having a pair of elongated slots adjacent the rear thereof, a pair of pivot members secured to said plow adjacent the base thereof and slidable in said slots, a link connected at one end to said frame adjacent the forward end thereof, and pivotally connected at the opposite end to the forward end of said .plow, rack bar, means pivotally securing the lower end of said bar to said plow adjacent the forward end thereof, guide means for said rack bar, means.

a vertically disposed supporting said guide means in upwardly spaced;

relation to said frame, a shaft journalled through said guide means, a pinion fixed to said shaft and meshing with said rack bar, a hand wheel fixed to said shaft, and means locking said wheel against rotation to thereby maintain the forward end of said plow in selected position relative to the frame.

2. A ditch digging device comprising a mobile frame, a triangularly shaped plow positioned with the apex at the front end of the frame and the base at the rear of the frame, said frame having a pair of elongated horizontal slots adjacent the rear thereof, a pair of pivot members carried by said plowvand slidably engaging in said slot, ,a forwardly extending downwardly inclined link connected at its forward end with the frame and having its rear end pivotally connected withv the top of the plow at the forward end of the latter,

' a platform carried bysaid plow, a vertically dis posed rack bar, means. pivotally securing the lower end of said bar to said plow adjacent the forward end thereof, a pair of spaced apart parallel'guide members engaging on opposite sides of said bar, a flange carried by each guide member, guide supporting means secured to and extending upwardly of said frame, means securingsaid flanges to said supporting means, a transverse guide extending between said guide members and engageable with an edge of said bar, a shaft journalled through said guide members, a pinion fixed to said shaft between said guide members and meshing with said rack bar, a hand wheel fixed to said shaft, and means holding said wheel against rotation.

3. A ditch digging device comprising a mobile frame, a triangularly shaped plow positioned with the apex at the front end of the frame and the base at the rear of the frame, said frame having a pair of elongated horizontal slots adjacent the rear thereof, a pair of pivot members carried by said plow and slidably engaging in said slot, a linkage connected to the forward end of the plow, extended forwardly from the latter and having its forward end connected with the frame, a platform carried by said plow, a vertically disposed rack bar, means pivotally securing the lower end of said bar to said plow adjacent the forward end thereof, a pair of spaced apart parallel guide members engaging on opposite sides of said bar, a flange carried by each guide member, guide supporting means secured to and extending upwardly of said frame, means securing said flanges to said supporting means, a transverse guide extending between said guide members and engageable with an edge of said bar, a shaft journalled through said guide members, a pinion fixed to said shaft between said guide members and meshing with said rack bar,

a hand wheel fixed to said shaft, and a wheel locking pin removably engaging with said guide members, and engageable with said wheel to hold said wheel against rotation.

4. A ditch digging device comprising a frame formed of a pair of forwardly convergent bars, and a rear bar connecting the divergent ends of said bars together, a front bearing, means securing said bearing to the convergent ends of said bars, a caster wheel carried by said bearing, a pair of stub shafts, means securing said stub shafts to said rear bars, a rear wheel on each stub, shaft, said pair of bars each having an elongated slot adjacent the rear end thereof, a

,triangularly shaped plow, said plow having a plurality of vertically spaced apart openings adjacent the rear thereof, pivot members engaging through selected openings of said plow and through said slots, an extension carried by the front of the plow and extended up into the frame, a forwardly extending downwardly inclined link having its rear end pivotally connected to the upper end of the extension and its forward end connected with the frame, a toothed rack bar, means pivotally securing an end of said rack bar to said plow adjacent the forward end thereof, guide means for said rack bar, means supporting said guide means upwardly of said frame, a shaft journalled through said guide means, a pinion fixed to said shaft and meshing with said rack bar, a hand wheel fixed to said shaft, and means locking said hand wheel against rotation.

ALVIN L. MEYEIR.

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