US2160972A

US2160972A - Snow plow

Info

Publication number: US2160972A
Application number: US153839A
Authority: US
Inventors: Louis J Litchy
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-07-15
Filing date: 1937-07-15
Publication date: 1939-06-06
Anticipated expiration: 1956-06-06

Description

June 6, 1939.

L. J. I ITCHY 2,160,972

SNOW PLOW Filed July 15, 1957 4 Sheets-Sheet l L. J LITCHY June 6, 1939- Filed July 15, 1937 June 6, 1939. J. LUCHY 2,160,972

SNOW PLOW F'iledv July 15, 1937 4 Sheets-Sheet 4 Inventor Attorneys Patented June 6, 1939 UNITED STATES PAT ENT O'FFIQE SNOW PLOW Louis J. Litohy, Royalton, Minn. Application July. 15, 1937, Serial No. 153,839 2' claims. (01; 37-44 This invention relates to plowsand more pardesired angular position of adjustment relative ticularly to a plow especially adapted for remov to one another and relative to the associated ing snow from highways. moldboard 5 there are providedfor each pair of An object of the present invention is to provide

flareboards

9 and 10 adjustment devices 13' and a plow of such a structure that the weight of M respectively. 5;:

the snow being removed thereby will be sustained The adjustment device l3 comprises a lugv M- by the plow and not by the vehicle to which the mounted on the rear face of the moldboard 5 adplow is attached, an objectionable feature of the jacent the upper edge of the moldboard while type of snow plows now generally used for this lugs Hand 16 respectively are provided on the i: type of work. I rear sides of the flareboards 9 and H] as shown 10.:

A further object of the invention is to provide in Figure 4. a snow plow having adjustable flareboards Pivot'ed to the lug l5 associated with the flaremounted on the moldboards of the plow. board 9 as at l'lare links IBan'd I9.

A still further object of the invention is to- Link I8 is provided adjacent one end thereof gzprovide improved supporting means for the plow with a series ofopenings 20 adapted to be selec- 16;;

including means for raising and supporting the tivelyalined with an opening in the lug It" to repoint of the plow above ground level. ceive-a bolt zl through the mediumof which the The invention together with its objects and adfiareboard 9 is secured at the desired position of vantages will be best understood from a study. of adjustment relative to the moldboard 5.

' the following description taken in connection Link H] at its free end is provided with a series with the accompanying drawings wherein: of openings 22- adapted to be selectively alined Figure l is a side elevational view of the plow. with an opening in the lug l6 to: receive a bo1t'23 Figure 2 is a rear elevational View of the plow. through: the medium of which flareboard' IB is Figure 3 is a top plan view of the plow. held'at'the desired position adjustment relative to- Figure 4 is a fragmentary detail sectional view its companion flareboard 9;

; of a. rear portion of one of the moldboards of The adjustment device l4 comprises a lever 24 26:

the plow, and showing the flareboards associated pivoted at one endto a bracket Ztim'ountedon a therewith. web plate 26 secured at the angle between the Figure 5 is a fragmentary vertical sectional moldboards 5 -rearwardly thereof. As best shown ,view through the plow showing a supporting asin Figure 2 the free end of the lever 24 is pro- 903 sembly therefor. vided with a series of openings 21 adapted to be Figure 6 is aperspective view of a ground enselectively alined with an opening in a lug 23 gaging member and yoke associated therewith. on the flareboard H) to receive a bolt 29 through Figure 7 is a perspective view of a link assembly,. the medium of which the lever 24 is adjustably and secured to the lug 28 to cooperate with the ad- Figure 8 is a fragmentary detail view showing justment device l3'for securing the flareboards at the pivot rod and means for mounting the same. the desired angular'positions of adjustment.

Refe r ng t the drawings y reference mlmer- The plow is further provided with a hitch struca S t W be Seen that in the preferred emboditure indi'cated generally by the reference numeral tment thereof the imprVed-p1WwhiFhiS subs tan 30.- Hitch structure 33 comprises a transverse- 9h Shaped mp Plan cmpnses bar 3| that extends between the moldboards 5 moldboards 5-5 that diverge towards the rear its respective opposite end is Welded, or

of the plow and .ccfnverge at the frpnt of the plow otherwise made fast to the moldboards. Extendwhere .they are Jomed toga-he? Wlth one another ing upwardly from intermediate portions of the g tg ig jgi g g i gfigggf lg gg & bar 3| are short standards 32 which at their upe y q pp per ends support a cross bar 33. Cross bar 33 is blades 1 between the convergmg ends of wmch braced relative to the moldboards 5 through the disposed the plow point 8. I 4 Each moldboard 5 at the upper edge thereof medmm of crossed dlagonal brace? 3 Cross bars 3| and 33 are provided, as clearly is also provided with a pair of flareboards 9, l0, flarebgard 9 being hinged to the upper edge of Shown in 2, laterally Spaced. pairs Of its associated moldboard as at H and flareboard Spaced apertured

ears

35, 36 that accommodate in being hinged to its companion flareboard as coupling p th u t e medium of which at l2. the plow may be pivotally mounted on a suitable For supporting the

flareboards

9 and 10 at the supporting structure that may extend forwardly from a tractor, motor truck, vehicle.

Also for steadying the plow the moldboards 5 thereof at their inner sides and adjacent the rear of the plow are provided with angular brackets 39 in the horizontal portions of which are journaled bolts 4D having on their lower ends ground-engaging tread members 3 I. In the present instance, the tread members 4! are shown as consisting of blocks of wood or other suitable material having a tread surface of metal or other suitable material. However, it is to be understood that the tread members 4! may, if desired, be in the form of rollers.

Further in accordance with the present invention there is provided means for raising the point 8 of the plow out of engagement with the ground and for supporting the plow in this raised position. Such means, in the present instance, consists of a suitable screw jack 42 bolted, or otherwise secured as at 43 to a brace beam 44 that extends from the forward end of the plow to the upper cross bar 33.

The head 45 of the jack is such as to accommodate a rod 45 that is welded or otherwise positively secured to the head 55.

A pair of links iii are provided at one end with apertures to receive the pivot rod 46 and these links are retained in engagement with the rod 46 through the medium of cotter pins 38 or as otherwise found desirable.

At their free ends the links 41 are pivoted through the medium of a pivot pin 49 to one end of yoke bars 55.

Yoke bars 50 intermediate their ends are pivotally supported between a pair of rearwardly extending angle bars 5i through the medium of a pin 52.

Pivoted between the free ends of the yoke bars 55 is a ground-engaging element 53.

In the present instance the ground-engaging element 53 is shown in the form of a block of wood, metal, or other suitable material but it is also to be understood that this ground-engaging element, if desired, may be in the form of a roller.

It will thus be seen that to raise the point end of the plow out of contact with the ground, the screw shank of the jack 42 is threaded upwardly. This will result in a swinging of the yoke arms 50 in a counter-clockwise direction to engage the ground-engaging member 53 with the ground with the result that as the shank of the screw jack continues upwardly the plow will be tilted rearwardly to raise the point 8 thereof above the surface of the ground. This will be found particularly desirable when the plow is moving over rough and bumpy ground.

Obviously, to lower the point into engagement with the ground the shank of the jack. is lowered in the usual manner.

Also, in accordance with the present invenor other analogous frame to said boards, respectively,

tion, the moldboards 5 of the plow are suitably reinforced by angle irons 54; and when it is desired to tow the plow a draft chain or the like may be readily engaged in an aperture 55 provided therefor at the lower end of the dividing board 6 of the plow.

It is thought that a clear understanding of the construction, utility and advantages of a plow embodying the features of the present invention will be had without a more detailed description, it being understood, however, that the invention is applicable to any type of plow, whether it be of the V-type shown, or of the wing type or one-way type; and that also the invention may be embodied in a plow of any size, large or small, as for example to render the plow useful for clearing railroad right-of-ways.

Having thus described the invention what is claimed as new is:

1. In a snow plow structure of the V type, a pair of rearwardly divergent moldboards, and means to connect said boards together comprising a lower rear cross bar extending laterally between said boards and having the ends thereof fixed to said boards, respectively, a frame of substantially rectangular from said cross bar centrally thereof and parallel therewith, an upper connecting bar be tween the top of said frame and said boards extending horizontally in the longitudinal center of the structure, a pair of lower connecting bars between said cross bar and said boards, respectively, extending horizontally and parallel upon opposite sides of said center of the structure, respectively, and a pair of diagonal cross braces extending from opposite upper corners of said frame to said boards, respectively, and fixed to the latter adjacent the upper edges thereof.

2. In a snow plow structure of the V type, a pair of rearwardly divergent moldboards, and means to connect said boards together comprising a lower rear cross bar extending laterally between said boards and having the ends thereof fixed to said boards, respectively, a frame of substantially rectangular form upstanding from said cross bar centrally thereof and parallel therewith, an upper connecting bar between the top of said frame and said boards extending horizontally in the longitudinal center of the structure, a pair of lower connecting bars between said cross bar and said boards, respectively, extending horizontally and parallel upon opposite sides of the center of the structure, respectively, a pair of diagonal cross braces extending from opposite upper corners of said and fixed to the latter adjacent the upper edges thereof, a front supporting shoe mounted on said pair of lower connecting bars to rock therebetwcen and a pair of rear side shoes fixed to opposite ends of said cross bar, respectively.

LOUIS J. LITCHY.

form upstanding I